/* roulang page: index */
:root {
            --color-primary: #6E1D3A;
            --color-primary-dark: #4E1529;
            --color-primary-deeper: #3A1020;
            --color-accent: #C49B5A;
            --color-accent-hover: #B58A4A;
            --color-accent-light-bg: #F0E6D6;
            --color-dark-bg: #2A1E26;
            --color-light-bg: #F7F3EF;
            --color-surface: #FFFFFF;
            --color-text: #3B332E;
            --color-text-secondary: #756A62;
            --color-border: #E4DCD4;
            --color-dark-text: #F7F3EF;
            --color-dark-secondary: #C8BBB2;
            --color-ink-green: #2F5D4A;
            --color-amber: #C47F17;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 4px;
            --radius-large: 12px;
            --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
            --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
            --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
            --transition-default: 0.25s ease;
            --transition-fast: 0.2s ease;
            --sidebar-width: 256px;
            --container-max: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            font-weight: 400;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-light-bg);
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: underline;
            text-decoration-color: var(--color-accent);
            text-underline-offset: 3px;
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-base);
            color: var(--color-text);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 16px 0;
        }

        h1 {
            font-size: 32px;
            line-height: 1.25;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 26px;
            letter-spacing: -0.2px;
        }
        h3 {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.4;
        }
        h4 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
        }

        p {
            margin: 0 0 1.2em 0;
        }

        .container-white {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 72px 0;
        }

        .section-pad-sm {
            padding: 48px 0;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin-top: -8px;
            margin-bottom: 32px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        /* App Shell Layout */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            width: var(--sidebar-width);
            background: var(--color-dark-bg);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 24px 0 16px;
            transition: transform var(--transition-default);
        }

        .sidebar-logo {
            padding: 0 20px 20px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
            margin-bottom: 16px;
        }

        .sidebar-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-dark-text);
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .sidebar-logo .logo-tagline {
            font-size: 12px;
            color: var(--color-dark-secondary);
            margin-top: 4px;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 0 12px;
        }

        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 11px 16px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--color-dark-secondary);
            border-left: 3px solid transparent;
            border-radius: 0 6px 6px 0;
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: rgba(201, 167, 90, 0.12);
            color: var(--color-accent);
            text-decoration: none;
        }
        .sidebar-nav a.active {
            background: rgba(201, 167, 90, 0.10);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
        }

        .sidebar-nav .nav-icon {
            width: 20px;
            text-align: center;
            margin-right: 12px;
            font-size: 14px;
        }

        .sidebar-footer {
            padding: 12px 20px;
            border-top: 1px solid rgba(200, 187, 178, 0.15);
        }
        .sidebar-footer a {
            font-size: 12.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            display: inline-block;
            margin-right: 12px;
            transition: color var(--transition-fast);
        }
        .sidebar-footer a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            background: var(--color-light-bg);
        }

        /* Mobile Top Bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--color-dark-bg);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .mobile-topbar .mobile-logo {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-dark-text);
            flex: 1;
        }
        .mobile-topbar .hamburger {
            width: 40px;
            height: 40px;
            background: transparent;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-dark-text);
            font-size: 22px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }
        .mobile-topbar .hamburger:hover {
            background: rgba(201, 167, 90, 0.2);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(42, 30, 38, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-default);
        }
        .drawer-overlay.open {
            display: block;
            opacity: 1;
        }

        .sidebar.open {
            transform: translateX(0);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 500;
            font-family: var(--font-base);
            border-radius: var(--radius-btn);
            cursor: pointer;
            border: none;
            transition: all var(--transition-default);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn:hover {
            text-decoration: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #FFFFFF;
        }
        .btn-primary:active {
            background: var(--color-primary-deeper);
            color: #FFFFFF;
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: rgba(110, 29, 58, 0.08);
            color: var(--color-primary);
        }
        .btn-outline:active {
            background: rgba(110, 29, 58, 0.2);
            color: var(--color-primary);
        }

        .btn-dark-accent {
            background: var(--color-accent);
            color: var(--color-dark-bg);
        }
        .btn-dark-accent:hover {
            background: var(--color-accent-hover);
            color: var(--color-dark-bg);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13.5px;
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 16px;
        }
        .btn-block {
            width: 100%;
        }

        /* Card */
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-default);
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .card-body {
            padding: 20px 24px;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        /* Badge */
        .badge {
            display: inline-block;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.3px;
        }
        .badge-accent {
            background: var(--color-accent-light-bg);
            color: var(--color-primary);
        }
        .badge-green {
            background: #E7F0EC;
            color: var(--color-ink-green);
        }
        .badge-amber {
            background: #FDF4E5;
            color: var(--color-amber);
        }
        .badge-dark {
            background: var(--color-dark-bg);
            color: var(--color-dark-text);
        }

        /* Hero */
        .hero-section {
            background: var(--color-dark-bg);
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding: 72px 0 60px;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 30%, rgba(196, 155, 90, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 1;
            width: 100%;
        }
        .hero-coupon-wall {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .hero-coupon-main {
            background: var(--color-surface);
            border-radius: var(--radius-large);
            padding: 32px 36px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 380px;
            border: 2px solid var(--color-accent);
        }
        .coupon-dashed-border {
            border: 2px dashed var(--color-border);
            border-radius: var(--radius-large);
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .coupon-big-number {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 2px;
            margin: 12px 0;
        }
        .coupon-label-main {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .coupon-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .coupon-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
        }
        .hero-coupon-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
            justify-content: center;
        }
        .hero-coupon-mini {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(200, 187, 178, 0.2);
            border-radius: var(--radius-large);
            padding: 20px 24px;
            backdrop-filter: blur(4px);
            transition: all var(--transition-default);
            cursor: default;
        }
        .hero-coupon-mini:hover {
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.10);
        }
        .hero-coupon-mini .mini-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.5px;
        }
        .hero-coupon-mini .mini-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-dark-text);
            margin-top: 4px;
        }
        .hero-coupon-mini .mini-desc {
            font-size: 13px;
            color: var(--color-dark-secondary);
            margin-top: 4px;
        }

        .hero-numbers-preview {
            display: flex;
            gap: 8px;
            margin-top: 16px;
            flex-wrap: wrap;
        }
        .num-ball {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--color-accent-light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .num-ball-sm {
            width: 38px;
            height: 38px;
            font-size: 15px;
            border-radius: 8px;
        }

        /* Feature Asymmetric */
        .feature-asymmetric {
            display: grid;
            grid-template-columns: 2fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }
        .feature-large {
            grid-row: span 2;
            display: flex;
            flex-direction: column;
        }
        .feature-small {
            display: flex;
            flex-direction: column;
        }

        /* Scene Strip */
        .scene-strip {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .scene-item {
            display: flex;
            gap: 20px;
            align-items: center;
            background: var(--color-surface);
            border-radius: var(--radius-large);
            padding: 20px 24px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .scene-item:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-card);
        }
        .scene-item .scene-img-wrapper {
            flex-shrink: 0;
            width: 140px;
            height: 100px;
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .scene-item .scene-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-item .scene-content {
            flex: 1;
        }

        /* Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-block {
            text-align: center;
            padding: 24px 16px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
        }
        .stat-number {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: -1px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-top: 8px;
        }

        /* Success Cases */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .case-card {
            display: flex;
            gap: 16px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            padding: 16px;
            transition: all var(--transition-default);
        }
        .case-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }
        .case-card .case-img {
            flex-shrink: 0;
            width: 120px;
            height: 90px;
            border-radius: var(--radius-card);
            object-fit: cover;
        }
        .case-card .case-content {
            flex: 1;
        }
        .case-date {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 4px;
        }
        .case-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .case-excerpt {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* Deep Content */
        .deep-article {
            background: var(--color-surface);
            border-radius: var(--radius-large);
            border: 1px solid var(--color-border);
            padding: 48px 56px;
        }
        .deep-article h3 {
            margin-top: 32px;
            margin-bottom: 16px;
            font-size: 20px;
            color: var(--color-text);
        }
        .deep-article p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        .deep-article .article-img {
            margin: 24px 0;
            border-radius: var(--radius-large);
        }

        .deep-split {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            background: var(--color-surface);
            border-radius: var(--radius-large);
            border: 1px solid var(--color-border);
            padding: 40px 48px;
        }
        .deep-split .chart-placeholder {
            border-radius: var(--radius-large);
            overflow: hidden;
            height: 100%;
            min-height: 320px;
            background: var(--color-light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px dashed var(--color-border);
        }
        .deep-split .chart-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Table */
        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
        }
        table.custom-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
            font-size: 14px;
            background: var(--color-surface);
        }
        table.custom-table thead th {
            background: var(--color-primary);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            padding: 14px 16px;
            text-align: left;
            letter-spacing: 0.3px;
        }
        table.custom-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
        }
        table.custom-table tbody tr:nth-child(even) {
            background: var(--color-light-bg);
        }
        table.custom-table tbody tr:hover {
            background: var(--color-accent-light-bg);
        }

        /* Price Cards */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .price-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-default);
            position: relative;
        }
        .price-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .price-card.recommended {
            border: 2px solid var(--color-accent);
            box-shadow: 0 4px 20px rgba(196, 155, 90, 0.15);
        }
        .price-card .price-badge-recommended {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--color-accent);
            color: var(--color-dark-bg);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
        }
        .price-amount {
            font-family: var(--font-mono);
            font-size: 38px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: -1px;
        }
        .price-period {
            font-size: 13px;
            color: var(--color-text-secondary);
        }

        /* News */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 0.7fr;
            gap: 32px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 16px 20px;
            transition: all var(--transition-fast);
        }
        .news-item:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-card);
        }
        .news-date-badge {
            flex-shrink: 0;
            width: 56px;
            background: var(--color-primary);
            color: #FFF;
            border-radius: 6px;
            text-align: center;
            padding: 8px 4px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.3;
        }
        .news-date-badge .day {
            font-size: 20px;
            font-weight: 700;
            display: block;
            font-family: var(--font-mono);
        }
        .news-content {
            flex: 1;
        }
        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        .read-more {
            font-size: 13.5px;
            font-weight: 500;
            color: var(--color-primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }
        .read-more:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .news-sidebar {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 20px 24px;
        }

        /* Brand Intro */
        .brand-intro {
            text-align: center;
            background: var(--color-accent-light-bg);
            border-radius: var(--radius-large);
            padding: 48px 40px;
            border: 1px solid var(--color-border);
        }
        .brand-intro p {
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item.active {
            border-color: var(--color-accent);
            background: var(--color-light-bg);
        }
        .faq-question {
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            transition: color var(--transition-fast);
            border-left: 3px solid transparent;
        }
        .faq-item.active .faq-question {
            border-left-color: var(--color-accent);
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            font-size: 14px;
            transition: transform var(--transition-fast);
            color: var(--color-text-secondary);
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-default), padding var(--transition-default);
            padding: 0 20px;
            color: var(--color-text);
            font-size: 14.5px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px 24px;
        }

        /* Changelog */
        .changelog-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .changelog-item {
            display: flex;
            gap: 16px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 16px 20px;
            transition: all var(--transition-fast);
        }
        .changelog-item:hover {
            border-color: var(--color-accent);
        }
        .change-version {
            font-family: var(--font-mono);
            font-weight: 600;
            font-size: 14px;
            color: var(--color-primary);
            white-space: nowrap;
        }
        .change-desc {
            font-size: 14px;
            color: var(--color-text);
        }

        /* Guarantee */
        .guarantee-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 16px 20px;
        }
        .guarantee-item .guarantee-icon {
            font-size: 22px;
            color: var(--color-accent);
        }
        .guarantee-item .guarantee-text {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
        }

        /* Timeline */
        .timeline-list {
            display: flex;
            flex-direction: column;
            position: relative;
            padding-left: 28px;
        }
        .timeline-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--color-border);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 20px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 6px;
            width: 12px;
            height: 12px;
            background: var(--color-accent);
            border-radius: 50%;
            border: 2px solid var(--color-surface);
            box-shadow: 0 0 0 2px var(--color-accent-light-bg);
        }
        .timeline-time {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
        }
        .timeline-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }
        .timeline-action {
            font-size: 13.5px;
            color: var(--color-text-secondary);
        }

        /* CTA Bottom */
        .cta-bottom {
            background: var(--color-dark-bg);
            border-radius: var(--radius-large);
            padding: 56px 40px;
            text-align: center;
            color: var(--color-dark-text);
        }
        .cta-bottom h2 {
            color: var(--color-dark-text);
            margin-bottom: 12px;
        }
        .cta-bottom p {
            color: var(--color-dark-secondary);
            font-size: 15px;
        }

        /* Form */
        .form-container {
            background: var(--color-surface);
            border-radius: var(--radius-large);
            border: 1px solid var(--color-border);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
        }
        .form-container label {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            margin-bottom: 4px;
            display: block;
        }
        .form-container input,
        .form-container select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            font-size: 14px;
            font-family: var(--font-base);
            color: var(--color-text);
            background: var(--color-light-bg);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            outline: none;
        }
        .form-container input:focus,
        .form-container select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 2px rgba(196, 155, 90, 0.2);
        }

        /* Privacy Notice */
        .privacy-notice {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 24px 28px;
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .privacy-notice .privacy-icon {
            flex-shrink: 0;
            font-size: 20px;
            color: var(--color-ink-green);
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark-bg);
            padding: 48px 0 24px;
            color: var(--color-dark-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: var(--color-dark-text);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
            line-height: 1.6;
        }
        .footer-col a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        .footer-col p {
            font-size: 13.5px;
            color: var(--color-dark-secondary);
            line-height: 1.7;
        }
        .footer-bottom {
            border-top: 1px solid rgba(200, 187, 178, 0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-dark-secondary);
        }
        .footer-bottom a {
            color: var(--color-dark-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .mobile-topbar-spacer {
                height: 56px;
            }
            .hero-section {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-coupon-wall {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hero-coupon-main {
                min-height: auto;
            }
            .feature-asymmetric {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .feature-large {
                grid-row: auto;
            }
            .deep-article {
                padding: 32px 24px;
            }
            .deep-split {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 32px 24px;
            }
            .price-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .deep-article,
            .deep-split {
                padding: 24px 20px;
            }
            h1 {
                font-size: 26px;
            }
            h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 639px) {
            .container-white {
                padding: 0 16px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-pad-sm {
                padding: 32px 0;
            }
            .hero-coupon-main {
                padding: 20px 18px;
            }
            .coupon-big-number {
                font-size: 32px;
            }
            .coupon-title {
                font-size: 20px;
            }
            .coupon-dashed-border {
                padding: 16px;
            }
            .hero-coupon-mini {
                padding: 16px 18px;
            }
            .scene-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 16px;
            }
            .scene-item .scene-img-wrapper {
                width: 100%;
                height: 140px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 26px;
            }
            .case-card {
                flex-direction: column;
                padding: 12px;
            }
            .case-card .case-img {
                width: 100%;
                height: 140px;
            }
            .guarantee-bar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .btn-lg {
                padding: 14px 20px;
                font-size: 15px;
            }
            .form-container {
                padding: 20px 16px;
            }
            .timeline-list {
                padding-left: 20px;
            }
            .timeline-item::before {
                left: -16px;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 12px 16px;
            }
            .news-date-badge {
                width: auto;
                display: inline-flex;
                gap: 4px;
                padding: 4px 10px;
            }
            .news-date-badge .day {
                font-size: 14px;
                display: inline;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #6E1D3A;
            --color-primary-dark: #4E1529;
            --color-primary-deeper: #3A1020;
            --color-accent: #C49B5A;
            --color-accent-hover: #B58A4A;
            --color-accent-light-bg: #F0E6D6;
            --color-dark-bg: #2A1E26;
            --color-light-bg: #F7F3EF;
            --color-surface: #FFFFFF;
            --color-text: #3B332E;
            --color-text-secondary: #756A62;
            --color-border: #E4DCD4;
            --color-dark-text: #F7F3EF;
            --color-dark-secondary: #C8BBB2;
            --color-ink-green: #2F5D4A;
            --color-amber: #C47F17;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 4px;
            --radius-large: 12px;
            --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
            --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
            --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
            --transition-default: 0.25s ease;
            --transition-fast: 0.2s ease;
            --sidebar-width: 256px;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            font-weight: 400;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-light-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
            text-decoration: underline;
            text-decoration-color: var(--color-accent);
            text-underline-offset: 3px;
        }

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        .container-white {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 64px 0;
        }

        .section-pad-sm {
            padding: 40px 0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.2px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin-top: -8px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .text-center {
            text-align: center;
        }

        /* App Shell Layout */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--color-dark-bg);
            z-index: 100;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-default);
        }

        .sidebar-logo {
            padding: 20px 20px 16px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
            margin-bottom: 12px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-dark-text);
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .sidebar-logo .logo-tagline {
            font-size: 12px;
            color: var(--color-dark-secondary);
            margin-top: 4px;
            line-height: 1.5;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 0 12px;
        }

        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 11px 16px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--color-dark-secondary);
            border-left: 3px solid transparent;
            border-radius: 0 6px 6px 0;
            text-decoration: none;
            transition: all var(--transition-fast);
            line-height: 1.4;
        }

        .sidebar-nav a:hover {
            background: rgba(201, 167, 90, 0.12);
            color: var(--color-accent);
            text-decoration: none;
        }

        .sidebar-nav a.active {
            background: rgba(201, 167, 90, 0.10);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
        }

        .sidebar-nav .nav-icon {
            width: 20px;
            text-align: center;
            margin-right: 12px;
            font-size: 14px;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 12px 20px;
            border-top: 1px solid rgba(200, 187, 178, 0.15);
            flex-shrink: 0;
        }

        .sidebar-footer a {
            font-size: 12.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            display: inline-block;
            margin-right: 12px;
            transition: color var(--transition-fast);
            line-height: 1.8;
        }

        .sidebar-footer a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* Top bar for mobile */
        .topbar-mobile {
            display: none;
            background-color: var(--color-dark-bg);
            padding: 0 16px;
            height: 56px;
            align-items: center;
            justify-content: space-between;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 99;
        }

        .topbar-mobile .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-dark-text);
        }

        .topbar-mobile .menu-toggle {
            background: none;
            border: none;
            color: var(--color-dark-text);
            font-size: 22px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }

        .topbar-mobile .menu-toggle:hover {
            background: rgba(201, 167, 90, 0.15);
        }

        .sidebar-backdrop {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(42, 30, 38, 0.55);
            z-index: 95;
            opacity: 0;
            transition: opacity var(--transition-default);
        }

        .sidebar-backdrop.show {
            opacity: 1;
        }

        /* Hero small */
        .hero-small {
            background: var(--color-dark-bg);
            padding: 52px 0 44px;
            position: relative;
            overflow: hidden;
        }

        .hero-small::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(110, 29, 58, 0.35) 0%, rgba(42, 30, 26, 0.7) 70%);
            pointer-events: none;
        }

        .hero-small .container-white {
            position: relative;
            z-index: 1;
        }

        .hero-small h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-dark-text);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .hero-small .hero-desc {
            font-size: 15px;
            color: var(--color-dark-secondary);
            max-width: 650px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(201, 167, 90, 0.18);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        /* Trend chart section */
        .trend-chart-block {
            background: var(--color-surface);
            border-radius: var(--radius-large);
            box-shadow: var(--shadow-card);
            padding: 28px;
            margin-bottom: 28px;
        }

        .trend-chart-block .chart-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
        }

        .trend-chart-block .chart-meta {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
        }

        .trend-chart-img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-card);
            margin-bottom: 12px;
        }

        .chart-legend {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--color-text-secondary);
        }

        .chart-legend span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .legend-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: inline-block;
        }

        /* Stats mini cards */
        .mini-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 28px;
        }

        .mini-stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 18px 16px;
            text-align: center;
            transition: all var(--transition-default);
        }

        .mini-stat-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .mini-stat-card .stat-value {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
        }

        .mini-stat-card .stat-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        /* Trend article */
        .trend-article {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px 32px;
            margin-bottom: 28px;
        }

        .trend-article h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .trend-article h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 28px;
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .trend-article p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text);
            margin-bottom: 14px;
        }

        .trend-article .data-quote {
            background: var(--color-accent-light-bg);
            border-left: 3px solid var(--color-accent);
            padding: 14px 18px;
            border-radius: 0 6px 6px 0;
            font-size: 14px;
            color: var(--color-text);
            line-height: 1.7;
            margin: 16px 0;
        }

        .trend-article .data-table-wrap {
            overflow-x: auto;
            margin: 18px 0;
        }

        .trend-article table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 600px;
        }

        .trend-article table thead th {
            background-color: var(--color-primary);
            color: #fff;
            font-weight: 600;
            padding: 10px 14px;
            text-align: center;
            font-size: 13px;
        }

        .trend-article table tbody td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--color-border);
            text-align: center;
            font-family: var(--font-mono);
            font-size: 14px;
        }

        .trend-article table tbody tr:nth-child(even) {
            background: var(--color-light-bg);
        }

        .trend-article table tbody tr:hover {
            background: var(--color-accent-light-bg);
        }

        /* Method cards */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-bottom: 28px;
        }

        .method-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 22px 18px;
            transition: all var(--transition-default);
        }

        .method-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .method-card .method-icon {
            width: 40px;
            height: 40px;
            background: var(--color-accent-light-bg);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .method-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .method-card p {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ */
        .faq-block {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            margin-bottom: 28px;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 10px;
            overflow: hidden;
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 18px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            background: var(--color-surface);
            list-style: none;
            transition: background var(--transition-fast);
            line-height: 1.5;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .fa-chevron-down {
            font-size: 13px;
            color: var(--color-text-secondary);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item[open] summary {
            background: var(--color-light-bg);
            border-left: 3px solid var(--color-accent);
        }

        .faq-item[open] summary .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-item .faq-body {
            padding: 14px 18px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }

        /* CTA section */
        .cta-band {
            background: var(--color-dark-bg);
            padding: 52px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 60%;
            height: 100%;
            background: radial-gradient(ellipse at 80% 50%, rgba(110, 29, 58, 0.4) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-band .container-white {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-band h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-dark-text);
            margin-bottom: 10px;
        }

        .cta-band p {
            font-size: 15px;
            color: var(--color-dark-secondary);
            max-width: 520px;
            margin: 0 auto 22px;
            line-height: 1.7;
        }

        /* Buttons */
        .btn-primary {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            border: none;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-default);
            font-family: var(--font-base);
            line-height: 1.5;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(78, 21, 41, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: var(--color-primary-deeper);
            transform: translateY(0);
        }

        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            padding: 11px 23px;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-default);
            font-family: var(--font-base);
            line-height: 1.5;
            text-align: center;
        }

        .btn-secondary:hover {
            background: rgba(110, 29, 58, 0.08);
            color: var(--color-primary);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-accent {
            display: inline-block;
            background: var(--color-accent);
            color: var(--color-dark-bg);
            border: none;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-default);
            font-family: var(--font-base);
            line-height: 1.5;
            text-align: center;
        }

        .btn-accent:hover {
            background: var(--color-accent-hover);
            color: var(--color-dark-bg);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-accent:focus-visible {
            outline: 2px solid var(--color-dark-text);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark-bg);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-dark-text);
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }

        .footer-col p {
            font-size: 13.5px;
            color: var(--color-dark-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
            line-height: 1.6;
        }

        .footer-col a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(200, 187, 178, 0.15);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-dark-secondary);
            gap: 8px;
        }

        .footer-bottom a {
            color: var(--color-dark-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
            }

            .sidebar.show {
                transform: translateX(0);
            }

            .sidebar-backdrop.show {
                display: block;
            }

            .main-content {
                margin-left: 0;
            }

            .topbar-mobile {
                display: flex;
            }

            .main-content {
                padding-top: 56px;
            }

            .mini-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .method-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .hero-small h1 {
                font-size: 26px;
            }

            .trend-article {
                padding: 24px 18px;
            }

            .trend-chart-block {
                padding: 18px;
            }

            .trend-chart-img {
                height: 220px;
            }
        }

        @media (max-width: 639px) {
            .section-pad {
                padding: 40px 0;
            }

            .section-pad-sm {
                padding: 28px 0;
            }

            .container-white {
                padding: 0 16px;
            }

            .hero-small {
                padding: 36px 0 32px;
            }

            .hero-small h1 {
                font-size: 22px;
                line-height: 1.35;
            }

            .hero-small .hero-desc {
                font-size: 14px;
                line-height: 1.7;
            }

            .mini-stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .mini-stat-card {
                padding: 12px 10px;
            }

            .mini-stat-card .stat-value {
                font-size: 20px;
            }

            .method-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .trend-article {
                padding: 18px 14px;
            }

            .trend-article h2 {
                font-size: 20px;
            }

            .trend-article h3 {
                font-size: 16px;
            }

            .trend-article p {
                font-size: 14px;
                line-height: 1.75;
            }

            .trend-chart-img {
                height: 160px;
            }

            .btn-primary,
            .btn-secondary,
            .btn-accent {
                display: block;
                width: 100%;
                text-align: center;
                margin-bottom: 8px;
            }

            .section-title {
                font-size: 21px;
            }

            .faq-item summary {
                font-size: 14px;
                padding: 13px 14px;
            }

            .faq-item .faq-body {
                font-size: 13px;
                padding: 11px 14px;
            }
        }

        @media (min-width: 1024px) {
            .sidebar-backdrop {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root {
        --color-primary: #6E1D3A;
        --color-primary-dark: #4E1529;
        --color-primary-deeper: #3A1020;
        --color-accent: #C49B5A;
        --color-accent-hover: #B58A4A;
        --color-accent-light-bg: #F0E6D6;
        --color-dark-bg: #2A1E26;
        --color-light-bg: #F7F3EF;
        --color-surface: #FFFFFF;
        --color-text: #3B332E;
        --color-text-secondary: #756A62;
        --color-border: #E4DCD4;
        --color-dark-text: #F7F3EF;
        --color-dark-secondary: #C8BBB2;
        --color-ink-green: #2F5D4A;
        --color-amber: #C47F17;
        --radius-card: 10px;
        --radius-btn: 8px;
        --radius-input: 6px;
        --radius-badge: 4px;
        --radius-large: 12px;
        --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
        --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
        --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
        --transition-default: 0.25s ease;
        --transition-fast: 0.2s ease;
        --sidebar-width: 256px;
        --container-max: 1200px;
    }
    html {
        font-size: 16px;
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    body {
        font-family: var(--font-base);
        font-weight: 400;
        font-size: 15px;
        line-height: 1.75;
        color: var(--color-text);
        background-color: var(--color-light-bg);
        overflow-x: hidden;
        margin: 0;
    }
    a {
        color: var(--color-primary);
        text-decoration: none;
        transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
    }
    a:hover {
        color: var(--color-accent);
        text-decoration: underline;
        text-decoration-color: var(--color-accent);
        text-underline-offset: 3px;
    }
    a:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
        border-radius: 2px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: var(--radius-card);
    }
    .container-white {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 24px;
    }
    .section-pad {
        padding: 72px 0;
    }
    .section-pad-sm {
        padding: 48px 0;
    }
    .section-subtitle {
        font-size: 15px;
        color: var(--color-text-secondary);
        max-width: 720px;
        margin-top: -8px;
        margin-bottom: 32px;
    }
    .section-title {
        font-size: 26px;
        font-weight: 700;
        color: var(--color-text);
        margin-bottom: 12px;
        line-height: 1.3;
    }
    .section-label {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.5px;
        color: var(--color-accent);
        text-transform: uppercase;
        margin-bottom: 8px;
    }

    /* App Shell Layout */
    .app-shell {
        display: flex;
        min-height: 100vh;
        position: relative;
    }
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: var(--sidebar-width);
        background-color: var(--color-dark-bg);
        display: flex;
        flex-direction: column;
        z-index: 100;
        transition: transform var(--transition-default);
    }
    .main-content {
        flex: 1;
        margin-left: var(--sidebar-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    /* Sidebar */
    .sidebar-logo {
        padding: 0 20px 20px;
        border-bottom: 1px solid rgba(200, 187, 178, 0.15);
        margin-bottom: 16px;
        margin-top: 20px;
    }
    .sidebar-logo .logo-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--color-dark-text);
        letter-spacing: -0.3px;
        line-height: 1.3;
        display: block;
        text-decoration: none;
    }
    .sidebar-logo .logo-text:hover {
        color: var(--color-accent);
        text-decoration: none;
    }
    .sidebar-logo .logo-tagline {
        font-size: 12px;
        color: var(--color-dark-secondary);
        margin-top: 4px;
    }
    .sidebar-nav {
        flex: 1;
        overflow-y: auto;
        padding: 0 12px;
    }
    .sidebar-nav ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .sidebar-nav li {
        margin-bottom: 2px;
    }
    .sidebar-nav a {
        display: flex;
        align-items: center;
        padding: 11px 16px;
        font-size: 14.5px;
        font-weight: 500;
        color: var(--color-dark-secondary);
        border-left: 3px solid transparent;
        border-radius: 0 6px 6px 0;
        text-decoration: none;
        transition: all var(--transition-fast);
    }
    .sidebar-nav a:hover {
        background: rgba(201, 167, 90, 0.12);
        color: var(--color-accent);
        text-decoration: none;
    }
    .sidebar-nav a.active {
        background: rgba(201, 167, 90, 0.10);
        border-left-color: var(--color-accent);
        color: var(--color-accent);
        font-weight: 600;
    }
    .sidebar-nav .nav-icon {
        width: 20px;
        text-align: center;
        margin-right: 12px;
        font-size: 14px;
    }
    .sidebar-footer {
        padding: 12px 20px;
        border-top: 1px solid rgba(200, 187, 178, 0.15);
    }
    .sidebar-footer a {
        font-size: 12.5px;
        color: var(--color-dark-secondary);
        text-decoration: none;
        display: inline-block;
        margin-right: 12px;
        transition: color var(--transition-fast);
    }
    .sidebar-footer a:hover {
        color: var(--color-accent);
        text-decoration: none;
    }

    /* Mobile Top Bar */
    .mobile-topbar {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 56px;
        background-color: var(--color-dark-bg);
        z-index: 200;
        align-items: center;
        padding: 0 16px;
        justify-content: space-between;
    }
    .mobile-topbar .logo-text {
        font-size: 16px;
        font-weight: 700;
        color: var(--color-dark-text);
        text-decoration: none;
        line-height: 1.2;
    }
    .mobile-topbar .menu-icon-btn {
        background: transparent;
        border: none;
        color: var(--color-dark-text);
        font-size: 22px;
        cursor: pointer;
        padding: 8px;
        border-radius: 6px;
        transition: color var(--transition-fast), background var(--transition-fast);
    }
    .mobile-topbar .menu-icon-btn:hover {
        color: var(--color-accent);
        background: rgba(201, 167, 90, 0.12);
    }

    /* Off-canvas drawer for mobile */
    .offcanvas-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(42, 30, 38, 0.6);
        z-index: 150;
        opacity: 0;
        transition: opacity var(--transition-default);
    }
    .offcanvas-overlay.active {
        opacity: 1;
    }
    .offcanvas-drawer {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        background: var(--color-dark-bg);
        z-index: 250;
        transform: translateX(-100%);
        transition: transform var(--transition-default);
        display: flex;
        flex-direction: column;
        overflow-y: auto;
    }
    .offcanvas-drawer.active {
        transform: translateX(0);
    }
    .offcanvas-drawer .sidebar-nav {
        padding: 12px;
    }
    .offcanvas-drawer .sidebar-logo {
        margin-top: 20px;
        padding: 0 20px 20px;
    }
    .offcanvas-close-btn {
        background: transparent;
        border: none;
        color: var(--color-dark-secondary);
        font-size: 20px;
        cursor: pointer;
        align-self: flex-end;
        padding: 8px 16px;
        transition: color var(--transition-fast);
    }
    .offcanvas-close-btn:hover {
        color: var(--color-accent);
    }

    /* Page Hero */
    .page-hero {
        background-color: var(--color-dark-bg);
        padding: 48px 0 40px;
        position: relative;
        overflow: hidden;
    }
    .page-hero::before {
        content: "";
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        background-image: radial-gradient(circle at 80% 20%, rgba(201, 167, 90, 0.08) 0%, transparent 55%), radial-gradient(circle at 20% 80%, rgba(110, 29, 58, 0.35) 0%, transparent 50%);
        pointer-events: none;
    }
    .page-hero .container-white {
        position: relative;
        z-index: 1;
    }
    .page-hero h1 {
        font-size: 30px;
        font-weight: 700;
        color: var(--color-dark-text);
        margin: 0 0 12px;
        line-height: 1.3;
        letter-spacing: -0.3px;
    }
    .page-hero .hero-excerpt {
        font-size: 15px;
        color: var(--color-dark-secondary);
        max-width: 680px;
        line-height: 1.7;
    }
    .hero-breadcrumb {
        font-size: 13px;
        color: var(--color-dark-secondary);
        margin-bottom: 16px;
    }
    .hero-breadcrumb a {
        color: var(--color-dark-secondary);
        text-decoration: none;
    }
    .hero-breadcrumb a:hover {
        color: var(--color-accent);
    }
    .hero-breadcrumb .sep {
        margin: 0 8px;
        color: rgba(200, 187, 178, 0.4);
    }

    /* Number Preview Balls */
    .number-balls-row {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 20px;
    }
    .number-ball {
        width: 48px;
        height: 48px;
        border-radius: 8px;
        background: var(--color-accent-light-bg);
        color: var(--color-primary);
        font-family: var(--font-mono);
        font-size: 20px;
        font-weight: 600;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--color-border);
        transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    }
    .number-ball:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-card-hover);
    }
    .number-ball.blue-ball {
        background: #DCE8F0;
        color: #1E4B6E;
        border-color: #B8D0E0;
    }
    .number-ball.red-ball {
        background: #F0D9DC;
        color: #8C2B3A;
        border-color: #D8B8BE;
    }

    /* Filter Section */
    .filter-section {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 24px;
        margin-bottom: 28px;
        box-shadow: var(--shadow-card);
    }
    .filter-section .filter-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--color-text-secondary);
        margin-bottom: 8px;
        display: block;
    }
    .filter-row {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        align-items: flex-end;
    }
    .filter-group {
        flex: 1;
        min-width: 140px;
    }
    .filter-group select,
    .filter-group input {
        width: 100%;
        padding: 10px 14px;
        font-size: 14px;
        color: var(--color-text);
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-input);
        font-family: var(--font-base);
        transition: border-color var(--transition-fast);
    }
    .filter-group select:focus,
    .filter-group input:focus {
        outline: none;
        border-color: var(--color-accent);
    }
    .filter-submit-btn {
        padding: 10px 24px;
        background: var(--color-primary);
        color: var(--color-dark-text);
        border: none;
        border-radius: var(--radius-btn);
        font-size: 15px;
        font-weight: 500;
        font-family: var(--font-base);
        cursor: pointer;
        transition: background var(--transition-fast), opacity var(--transition-fast);
        white-space: nowrap;
    }
    .filter-submit-btn:hover {
        background: var(--color-primary-dark);
    }
    .filter-submit-btn:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

    /* Table */
    .table-responsive {
        overflow-x: auto;
        border-radius: var(--radius-card);
        border: 1px solid var(--color-border);
        background: var(--color-surface);
        box-shadow: var(--shadow-card);
    }
    table.lottery-table {
        width: 100%;
        border-collapse: collapse;
        margin: 0;
        font-size: 14px;
        min-width: 760px;
    }
    table.lottery-table thead th {
        background: var(--color-primary);
        color: var(--color-dark-text);
        padding: 12px 16px;
        font-weight: 600;
        font-size: 14px;
        text-align: left;
        white-space: nowrap;
        border: none;
    }
    table.lottery-table tbody td {
        padding: 12px 16px;
        border-bottom: 1px solid var(--color-border);
        color: var(--color-text);
        vertical-align: middle;
    }
    table.lottery-table tbody tr:nth-child(even) {
        background: #FAF7F2;
    }
    table.lottery-table tbody tr:hover {
        background: rgba(201, 167, 90, 0.06);
    }
    .table-ball-mini {
        display: inline-block;
        width: 30px;
        height: 30px;
        border-radius: 6px;
        background: var(--color-accent-light-bg);
        color: var(--color-primary);
        font-family: var(--font-mono);
        font-size: 13px;
        font-weight: 600;
        text-align: center;
        line-height: 30px;
        margin-right: 4px;
        border: 1px solid var(--color-border);
    }
    .table-ball-mini.blue-ball {
        background: #DCE8F0;
        color: #1E4B6E;
        border-color: #B8D0E0;
    }
    .table-ball-mini.green-ball {
        background: #D8E8DC;
        color: #2F5D4A;
        border-color: #B8D0C0;
    }

    /* Stats Mini Cards */
    .stats-mini-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 16px;
        margin: 24px 0;
    }
    .stats-mini-card {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 20px;
        box-shadow: var(--shadow-card);
        text-align: center;
    }
    .stats-mini-card .stat-number {
        font-family: var(--font-mono);
        font-size: 26px;
        font-weight: 600;
        color: var(--color-primary);
        display: block;
        margin-bottom: 4px;
    }
    .stats-mini-card .stat-label {
        font-size: 13px;
        color: var(--color-text-secondary);
    }

    /* Info Cards */
    .info-card-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 20px;
        margin: 24px 0;
    }
    .info-card {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 24px;
        box-shadow: var(--shadow-card);
        transition: transform var(--transition-default), box-shadow var(--transition-default);
    }
    .info-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
    }
    .info-card .info-icon {
        font-size: 24px;
        color: var(--color-accent);
        margin-bottom: 12px;
        display: block;
    }
    .info-card h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--color-text);
        margin: 0 0 8px;
        line-height: 1.4;
    }
    .info-card p {
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin: 0;
    }

    /* Data Source Banner */
    .data-source-banner {
        background: var(--color-accent-light-bg);
        border-left: 4px solid var(--color-ink-green);
        border-radius: var(--radius-card);
        padding: 20px 24px;
        margin: 28px 0;
    }
    .data-source-banner h3 {
        font-size: 16px;
        font-weight: 600;
        color: var(--color-ink-green);
        margin: 0 0 6px;
    }
    .data-source-banner p {
        font-size: 14px;
        color: var(--color-text);
        margin: 0;
        line-height: 1.7;
    }

    /* Image Banner */
    .image-banner {
        border-radius: var(--radius-large);
        overflow: hidden;
        margin: 28px 0;
        position: relative;
    }
    .image-banner img {
        width: 100%;
        height: auto;
        border-radius: var(--radius-large);
    }
    .image-banner .banner-caption {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        background: linear-gradient(to top, rgba(42, 30, 38, 0.85), rgba(42, 30, 38, 0.4), transparent);
        padding: 32px 24px 20px;
        color: var(--color-dark-text);
        font-size: 13px;
    }

    /* FAQ */
    .faq-section {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 28px;
        box-shadow: var(--shadow-card);
        margin: 28px 0;
    }
    .faq-item {
        border-bottom: 1px solid var(--color-border);
        padding: 16px 0;
    }
    .faq-item:last-child {
        border-bottom: none;
    }
    .faq-item h4 {
        font-size: 15.5px;
        font-weight: 600;
        color: var(--color-text);
        margin: 0 0 8px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        line-height: 1.45;
    }
    .faq-item h4 .faq-icon {
        color: var(--color-accent);
        font-size: 14px;
        transition: transform var(--transition-fast);
    }
    .faq-item p {
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin: 0;
        display: none;
    }
    .faq-item.active p {
        display: block;
    }
    .faq-item.active .faq-icon {
        transform: rotate(45deg);
    }

    /* CTA */
    .cta-section {
        background: var(--color-dark-bg);
        padding: 56px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: "";
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        background-image: radial-gradient(circle at 50% 60%, rgba(201, 167, 90, 0.10) 0%, transparent 60%);
        pointer-events: none;
    }
    .cta-section .container-white {
        position: relative;
        z-index: 1;
    }
    .cta-section h2 {
        font-size: 24px;
        font-weight: 700;
        color: var(--color-dark-text);
        margin: 0 0 12px;
        line-height: 1.3;
    }
    .cta-section p {
        font-size: 15px;
        color: var(--color-dark-secondary);
        max-width: 520px;
        margin: 0 auto 24px;
        line-height: 1.7;
    }
    .cta-buttons {
        display: flex;
        gap: 14px;
        justify-content: center;
        flex-wrap: wrap;
    }
    .btn-accent {
        display: inline-block;
        padding: 12px 28px;
        background: var(--color-accent);
        color: var(--color-dark-bg);
        border: none;
        border-radius: var(--radius-btn);
        font-size: 15px;
        font-weight: 600;
        font-family: var(--font-base);
        cursor: pointer;
        text-decoration: none;
        transition: background var(--transition-fast);
    }
    .btn-accent:hover {
        background: var(--color-accent-hover);
        color: var(--color-dark-bg);
        text-decoration: none;
    }
    .btn-outline-accent {
        display: inline-block;
        padding: 12px 28px;
        background: transparent;
        color: var(--color-accent);
        border: 1.5px solid var(--color-accent);
        border-radius: var(--radius-btn);
        font-size: 15px;
        font-weight: 500;
        font-family: var(--font-base);
        cursor: pointer;
        text-decoration: none;
        transition: background var(--transition-fast), color var(--transition-fast);
    }
    .btn-outline-accent:hover {
        background: rgba(201, 167, 90, 0.12);
        color: var(--color-accent);
        text-decoration: none;
    }

    /* Buttons */
    .btn-primary {
        display: inline-block;
        padding: 12px 24px;
        background: var(--color-primary);
        color: var(--color-dark-text);
        border: none;
        border-radius: var(--radius-btn);
        font-size: 15px;
        font-weight: 500;
        font-family: var(--font-base);
        cursor: pointer;
        text-decoration: none;
        transition: background var(--transition-fast);
    }
    .btn-primary:hover {
        background: var(--color-primary-dark);
        color: var(--color-dark-text);
        text-decoration: none;
    }
    .btn-secondary {
        display: inline-block;
        padding: 12px 24px;
        background: transparent;
        color: var(--color-primary);
        border: 1.5px solid var(--color-primary);
        border-radius: var(--radius-btn);
        font-size: 15px;
        font-weight: 500;
        font-family: var(--font-base);
        cursor: pointer;
        text-decoration: none;
        transition: background var(--transition-fast), color var(--transition-fast);
    }
    .btn-secondary:hover {
        background: rgba(110, 29, 58, 0.08);
        text-decoration: none;
    }

    /* Footer */
    .site-footer {
        background: var(--color-dark-bg);
        color: var(--color-dark-secondary);
        padding: 48px 0 0;
        margin-top: 0;
    }
    .site-footer .container-white {
        padding-bottom: 0;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        padding-bottom: 36px;
        border-bottom: 1px solid rgba(200, 187, 178, 0.15);
    }
    .footer-col h4 {
        font-size: 16px;
        font-weight: 600;
        color: var(--color-dark-text);
        margin: 0 0 14px;
        line-height: 1.4;
    }
    .footer-col p {
        font-size: 13.5px;
        color: var(--color-dark-secondary);
        line-height: 1.7;
        margin: 0 0 8px;
    }
    .footer-col a {
        display: block;
        font-size: 13.5px;
        color: var(--color-dark-secondary);
        text-decoration: none;
        padding: 4px 0;
        transition: color var(--transition-fast);
        line-height: 1.5;
    }
    .footer-col a:hover {
        color: var(--color-accent);
        text-decoration: none;
    }
    .footer-bottom {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        padding: 20px 0;
        font-size: 13px;
        color: var(--color-dark-secondary);
        gap: 8px 16px;
    }
    .footer-bottom a {
        color: var(--color-dark-secondary);
        font-size: 13px;
        text-decoration: none;
    }
    .footer-bottom a:hover {
        color: var(--color-accent);
    }
    .footer-bottom .sep {
        color: rgba(200, 187, 178, 0.3);
    }

    /* Responsive */
    @media (max-width: 1023px) {
        .sidebar {
            transform: translateX(-100%);
        }
        .main-content {
            margin-left: 0;
        }
        .mobile-topbar {
            display: flex;
        }
        .offcanvas-overlay {
            display: block;
        }
        .page-hero {
            padding-top: 68px;
        }
        .cta-section h2 {
            font-size: 20px;
        }
        .section-pad {
            padding: 48px 0;
        }
        .section-pad-sm {
            padding: 36px 0;
        }
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            text-align: left;
        }
    }
    @media (max-width: 639px) {
        .mobile-topbar {
            height: 52px;
            padding: 0 12px;
        }
        .mobile-topbar .logo-text {
            font-size: 14px;
        }
        .page-hero {
            padding: 60px 16px 32px;
        }
        .page-hero h1 {
            font-size: 22px;
        }
        .container-white {
            padding: 0 16px;
        }
        .filter-row {
            flex-direction: column;
            gap: 12px;
        }
        .filter-group {
            min-width: 100%;
        }
        .stats-mini-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .stats-mini-card .stat-number {
            font-size: 22px;
        }
        .info-card-grid {
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .cta-buttons {
            flex-direction: column;
        }
        .btn-accent,
        .btn-outline-accent {
            display: block;
            width: 100%;
            text-align: center;
        }
        .section-title {
            font-size: 22px;
        }
        .number-ball {
            width: 40px;
            height: 40px;
            font-size: 17px;
        }
    }
    @media (max-width: 480px) {
        .stats-mini-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

/* roulang page: category3 */
:root {
            --color-primary: #6E1D3A;
            --color-primary-dark: #4E1529;
            --color-primary-deeper: #3A1020;
            --color-accent: #C49B5A;
            --color-accent-hover: #B58A4A;
            --color-accent-light-bg: #F0E6D6;
            --color-dark-bg: #2A1E26;
            --color-light-bg: #F7F3EF;
            --color-surface: #FFFFFF;
            --color-text: #3B332E;
            --color-text-secondary: #756A62;
            --color-border: #E4DCD4;
            --color-dark-text: #F7F3EF;
            --color-dark-secondary: #C8BBB2;
            --color-ink-green: #2F5D4A;
            --color-amber: #C47F17;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 4px;
            --radius-large: 12px;
            --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
            --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
            --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
            --transition-default: 0.25s ease;
            --transition-fast: 0.2s ease;
            --sidebar-width: 256px;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            font-weight: 400;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-light-bg);
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: underline;
            text-decoration-color: var(--color-accent);
            text-underline-offset: 3px;
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        .container-white {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 64px 0;
        }
        .section-pad-sm {
            padding: 40px 0;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin-top: -8px;
            margin-bottom: 32px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        /* App Shell Sidebar */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .app-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--color-dark-bg);
            display: flex;
            flex-direction: column;
            z-index: 100;
            overflow-y: auto;
        }
        .app-main {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            background: var(--color-light-bg);
        }

        .sidebar-logo {
            padding: 0 20px 20px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-dark-text);
            letter-spacing: -0.3px;
            line-height: 1.3;
        }
        .sidebar-logo .logo-tagline {
            font-size: 12px;
            color: var(--color-dark-secondary);
            margin-top: 4px;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 0 12px;
        }
        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-nav li {
            margin-bottom: 2px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 11px 16px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--color-dark-secondary);
            border-left: 3px solid transparent;
            border-radius: 0 6px 6px 0;
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: rgba(201, 167, 90, 0.12);
            color: var(--color-accent);
            text-decoration: none;
        }
        .sidebar-nav a.active {
            background: rgba(201, 167, 90, 0.10);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
        }
        .sidebar-nav .nav-icon {
            width: 20px;
            text-align: center;
            margin-right: 12px;
            font-size: 14px;
        }

        .sidebar-footer {
            padding: 12px 20px;
            border-top: 1px solid rgba(200, 187, 178, 0.15);
            flex-shrink: 0;
        }
        .sidebar-footer a {
            font-size: 12.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            display: inline-block;
            margin-right: 12px;
            transition: color var(--transition-fast);
        }
        .sidebar-footer a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        /* Mobile Header */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--color-dark-bg);
            z-index: 200;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }
        .mobile-header .mobile-logo {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-dark-text);
        }
        .mobile-header .menu-icon-btn {
            background: transparent;
            border: none;
            color: var(--color-dark-text);
            font-size: 22px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 4px;
        }
        .mobile-header .menu-icon-btn:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(42, 30, 38, 0.5);
            z-index: 150;
        }
        .mobile-overlay.open {
            display: block;
        }
        .mobile-drawer {
            position: fixed;
            left: -280px;
            top: 0;
            bottom: 0;
            width: 280px;
            background: var(--color-dark-bg);
            z-index: 300;
            transition: left 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open {
            left: 0;
        }
        .mobile-drawer .drawer-header {
            padding: 16px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .mobile-drawer .drawer-header .drawer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark-text);
        }
        .mobile-drawer .drawer-close {
            background: none;
            border: none;
            color: var(--color-dark-secondary);
            font-size: 20px;
            cursor: pointer;
        }
        .mobile-drawer .sidebar-nav {
            padding-top: 12px;
        }
        .mobile-drawer .sidebar-footer {
            padding: 12px 16px;
        }

        /* Hero Category */
        .hero-category {
            background: var(--color-dark-bg);
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .hero-category::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }
        .hero-category .container-white {
            position: relative;
            z-index: 1;
        }
        .hero-category h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-dark-text);
            line-height: 1.35;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .hero-category .hero-sub {
            font-size: 15.5px;
            color: var(--color-dark-secondary);
            max-width: 680px;
            line-height: 1.7;
        }
        .hero-category .hero-badge {
            display: inline-block;
            background: rgba(201, 167, 90, 0.18);
            color: var(--color-accent);
            font-size: 12.5px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

        /* Step Guide Layout */
        .step-guide-wrapper {
            padding: 56px 0 40px;
        }
        .step-guide-grid {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .step-anchor-nav {
            width: 220px;
            flex-shrink: 0;
            position: sticky;
            top: 24px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 16px;
            border: 1px solid var(--color-border);
        }
        .step-anchor-nav .anchor-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--color-border);
        }
        .step-anchor-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .step-anchor-nav li {
            margin-bottom: 2px;
        }
        .step-anchor-nav a {
            display: block;
            padding: 8px 12px;
            font-size: 13.5px;
            color: var(--color-text-secondary);
            text-decoration: none;
            border-left: 2px solid transparent;
            border-radius: 0 4px 4px 0;
            transition: all var(--transition-fast);
        }
        .step-anchor-nav a:hover {
            background: rgba(201, 167, 90, 0.08);
            color: var(--color-primary);
            text-decoration: none;
        }
        .step-anchor-nav a.active-step {
            background: rgba(201, 167, 90, 0.10);
            border-left-color: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
        }
        .step-content-area {
            flex: 1;
            min-width: 0;
        }

        /* Step Blocks */
        .step-block {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            padding: 32px 28px;
            margin-bottom: 28px;
            scroll-margin-top: 80px;
            transition: box-shadow var(--transition-default), transform var(--transition-default);
        }
        .step-block:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-block .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: #fff;
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 600;
            border-radius: 50%;
            margin-bottom: 14px;
        }
        .step-block .step-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .step-block p {
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .step-block h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 20px;
            margin-bottom: 8px;
        }
        .step-block ul,
        .step-block ol {
            margin: 0 0 14px 20px;
            padding: 0;
            font-size: 14.5px;
            line-height: 1.75;
        }
        .step-block li {
            margin-bottom: 6px;
        }
        .step-block .step-image {
            margin: 16px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .step-block .step-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        /* Callout Boxes */
        .callout-tip {
            background: rgba(201, 167, 90, 0.10);
            border-left: 4px solid var(--color-accent);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 16px 0;
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text);
        }
        .callout-warning {
            background: rgba(196, 127, 23, 0.08);
            border-left: 4px solid var(--color-amber);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 16px 0;
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text);
        }
        .callout-green {
            background: rgba(47, 93, 74, 0.08);
            border-left: 4px solid var(--color-ink-green);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 16px 0;
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text);
        }
        .step-quote {
            background: var(--color-accent-light-bg);
            border-left: 4px solid var(--color-accent);
            padding: 18px 22px;
            border-radius: 0 8px 8px 0;
            margin: 18px 0;
            font-size: 14.5px;
            line-height: 1.8;
            color: var(--color-text);
            font-style: italic;
        }
        .step-quote .quote-author {
            display: block;
            margin-top: 8px;
            font-style: normal;
            font-size: 13px;
            color: var(--color-text-secondary);
        }

        /* Info Cards */
        .info-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 16px;
            margin: 16px 0;
        }
        .info-mini-card {
            background: var(--color-light-bg);
            border-radius: 8px;
            padding: 16px;
            border: 1px solid var(--color-border);
        }
        .info-mini-card .mini-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.4px;
            margin-bottom: 6px;
        }
        .info-mini-card .mini-value {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }
        .info-mini-card .mini-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        /* Table */
        .table-wrap {
            overflow-x: auto;
            margin: 16px 0;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 500px;
        }
        .data-table thead th {
            background: var(--color-primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
            font-size: 13.5px;
            white-space: nowrap;
        }
        .data-table tbody td {
            padding: 11px 16px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
        }
        .data-table tbody tr:nth-child(even) {
            background: var(--color-light-bg);
        }
        .data-table tbody tr:hover {
            background: rgba(201, 167, 90, 0.08);
        }

        /* FAQ Section */
        .faq-section {
            padding: 56px 0;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            margin-bottom: 8px;
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            background: var(--color-surface);
            border: none;
            padding: 16px 20px;
            text-align: left;
            font-size: 14.5px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background var(--transition-fast);
            font-family: var(--font-base);
        }
        .faq-question:hover {
            background: var(--color-light-bg);
        }
        .faq-question .faq-icon {
            color: var(--color-accent);
            font-size: 14px;
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: var(--color-light-bg);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 16px 20px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-secondary);
            border-top: 1px solid var(--color-border);
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-dark-bg);
            padding: 56px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-dark-text);
            margin-bottom: 8px;
        }
        .cta-section p {
            font-size: 15px;
            color: var(--color-dark-secondary);
            max-width: 560px;
            margin: 0 auto 24px;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            cursor: pointer;
            border: none;
            transition: all var(--transition-default);
            font-family: var(--font-base);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border: none;
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(110, 29, 58, 0.25);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--color-accent);
            color: var(--color-dark-bg);
            border: none;
        }
        .btn-accent:hover {
            background: var(--color-accent-hover);
            color: var(--color-dark-bg);
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(196, 155, 90, 0.30);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--color-accent);
            border: 1.5px solid var(--color-accent);
        }
        .btn-outline-light:hover {
            background: rgba(201, 167, 90, 0.10);
            color: var(--color-accent);
            text-decoration: none;
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark-bg);
            padding: 48px 0 0;
            color: var(--color-dark-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-dark-text);
            margin-bottom: 12px;
        }
        .footer-col p {
            font-size: 13.5px;
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: var(--color-dark-secondary);
            margin-bottom: 6px;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        .footer-bottom {
            padding: 16px 0 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12.5px;
            color: var(--color-dark-secondary);
        }
        .footer-bottom a {
            color: var(--color-dark-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .app-sidebar {
                display: none;
            }
            .app-main {
                margin-left: 0;
                padding-top: 56px;
            }
            .mobile-header {
                display: flex;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-guide-grid {
                flex-direction: column;
            }
            .step-anchor-nav {
                width: 100%;
                position: static;
                display: flex;
                flex-wrap: wrap;
                gap: 8px;
                padding: 12px;
            }
            .step-anchor-nav .anchor-title {
                width: 100%;
                margin-bottom: 4px;
            }
            .step-anchor-nav ul {
                display: flex;
                flex-wrap: wrap;
                gap: 4px;
            }
            .step-anchor-nav li {
                margin-bottom: 0;
            }
            .step-anchor-nav a {
                padding: 6px 12px;
                font-size: 12.5px;
                border-left: none;
                border-bottom: 2px solid transparent;
                border-radius: 4px;
            }
            .step-anchor-nav a.active-step {
                border-left: none;
                border-bottom-color: var(--color-accent);
            }
            .hero-category h1 {
                font-size: 26px;
            }
        }

        @media (max-width: 639px) {
            .container-white {
                padding: 0 16px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .step-block {
                padding: 20px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .hero-category {
                padding: 32px 0 40px;
            }
            .hero-category h1 {
                font-size: 22px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .step-anchor-nav a {
                font-size: 11.5px;
                padding: 5px 8px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #6E1D3A;
            --color-primary-dark: #4E1529;
            --color-primary-deeper: #3A1020;
            --color-accent: #C49B5A;
            --color-accent-hover: #B58A4A;
            --color-accent-light-bg: #F0E6D6;
            --color-dark-bg: #2A1E26;
            --color-light-bg: #F7F3EF;
            --color-surface: #FFFFFF;
            --color-text: #3B332E;
            --color-text-secondary: #756A62;
            --color-border: #E4DCD4;
            --color-dark-text: #F7F3EF;
            --color-dark-secondary: #C8BBB2;
            --color-ink-green: #2F5D4A;
            --color-amber: #C47F17;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 4px;
            --radius-large: 12px;
            --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
            --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
            --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
            --transition-default: 0.25s ease;
            --transition-fast: 0.2s ease;
            --sidebar-width: 256px;
            --container-max: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            font-weight: 400;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-light-bg);
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
            text-decoration: underline;
            text-decoration-color: var(--color-accent);
            text-underline-offset: 3px;
        }

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        .container-white {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 64px 0;
        }

        .section-pad-sm {
            padding: 40px 0;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin-top: -6px;
            margin-bottom: 32px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.2px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        /* ===== Sidebar Navigation ===== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar-desktop {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--color-dark-bg);
            display: flex;
            flex-direction: column;
            z-index: 100;
            overflow-y: auto;
        }

        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
            margin-bottom: 16px;
        }

        .sidebar-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-dark-text);
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .sidebar-logo .logo-tagline {
            font-size: 12px;
            color: var(--color-dark-secondary);
            margin-top: 4px;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 0 12px;
        }

        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 11px 16px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--color-dark-secondary);
            border-left: 3px solid transparent;
            border-radius: 0 6px 6px 0;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .sidebar-nav a:hover {
            background: rgba(201, 167, 90, 0.12);
            color: var(--color-accent);
            text-decoration: none;
        }

        .sidebar-nav a.active {
            background: rgba(201, 167, 90, 0.10);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
        }

        .sidebar-nav .nav-icon {
            width: 20px;
            text-align: center;
            margin-right: 12px;
            font-size: 14px;
        }

        .sidebar-footer {
            padding: 12px 20px;
            border-top: 1px solid rgba(200, 187, 178, 0.15);
        }

        .sidebar-footer a {
            font-size: 12.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            display: inline-block;
            margin-right: 12px;
            transition: color var(--transition-fast);
        }

        .sidebar-footer a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            background-color: var(--color-light-bg);
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-dark-bg);
            z-index: 200;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobile-header .mobile-logo {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-dark-text);
            letter-spacing: -0.3px;
        }

        .mobile-header .hamburger-btn {
            background: none;
            border: none;
            color: var(--color-dark-text);
            font-size: 22px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }

        .mobile-header .hamburger-btn:hover {
            background: rgba(201, 167, 90, 0.15);
            color: var(--color-accent);
        }

        .offcanvas-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(42, 30, 38, 0.55);
            z-index: 190;
            display: none;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .offcanvas-overlay.show {
            opacity: 1;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background-color: var(--color-dark-bg);
            z-index: 210;
            transition: left 0.3s ease;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            left: 0;
        }

        .mobile-drawer .sidebar-logo {
            padding: 20px 20px 16px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
            margin-bottom: 12px;
        }

        .mobile-drawer .sidebar-nav {
            padding: 0 12px;
        }

        .mobile-drawer .sidebar-nav a {
            padding: 12px 16px;
            font-size: 15px;
        }

        .mobile-drawer .sidebar-footer {
            margin-top: auto;
            padding: 16px 20px;
        }

        /* ===== Hero ===== */
        .category-hero {
            background-color: var(--color-dark-bg);
            padding: 64px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(110, 29, 58, 0.30) 0%, transparent 65%);
            pointer-events: none;
        }

        .category-hero .hero-inner {
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--color-dark-text);
            margin-bottom: 16px;
        }

        .category-hero .hero-sub {
            font-size: 16px;
            color: var(--color-dark-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-dark-secondary);
            margin-bottom: 20px;
        }

        .hero-breadcrumb a {
            color: var(--color-accent);
            font-size: 13px;
        }

        .hero-breadcrumb a:hover {
            color: var(--color-accent-hover);
            text-decoration: none;
        }

        .hero-breadcrumb .sep {
            color: rgba(200, 187, 178, 0.5);
        }

        /* ===== Compliance Notice ===== */
        .compliance-bar {
            background-color: var(--color-accent-light-bg);
            border: 1px solid var(--color-border);
            border-left: 4px solid var(--color-ink-green);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 0;
        }

        .compliance-bar p {
            font-size: 14.5px;
            color: var(--color-text);
            line-height: 1.7;
            margin: 0;
        }

        .compliance-bar .highlight {
            color: var(--color-ink-green);
            font-weight: 600;
        }

        /* ===== Story Cards Flow ===== */
        .story-card {
            background-color: var(--color-surface);
            border-radius: var(--radius-large);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform var(--transition-default), box-shadow var(--transition-default);
            margin-bottom: 32px;
        }

        .story-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .story-card .story-image {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-large) var(--radius-large) 0 0;
        }

        .story-card .story-body {
            padding: 24px 28px;
        }

        .story-card .story-date {
            display: inline-block;
            font-size: 13px;
            color: var(--color-text-secondary);
            background-color: var(--color-light-bg);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }

        .story-card .story-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: -0.2px;
        }

        .story-card .story-excerpt {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .story-card .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .story-card .read-more-btn i {
            font-size: 12px;
            transition: transform var(--transition-fast);
        }

        .story-card .read-more-btn:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .story-card .read-more-btn:hover i {
            transform: translateX(3px);
        }

        /* Story wide card variant */
        .story-card-wide {
            display: grid;
            grid-template-columns: 380px 1fr;
            min-height: 260px;
        }

        .story-card-wide .story-image {
            height: 100%;
            min-height: 260px;
            object-fit: cover;
            border-radius: var(--radius-large) 0 0 var(--radius-large);
        }

        .story-card-wide .story-body {
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
        }

        .story-card-wide .story-body .story-excerpt {
            flex: 1;
        }

        /* ===== Quote Block ===== */
        .quote-block {
            background-color: var(--color-dark-bg);
            border-radius: var(--radius-large);
            padding: 32px 36px;
            margin: 36px 0;
            position: relative;
        }

        .quote-block::before {
            content: '\201C';
            position: absolute;
            top: 8px;
            left: 16px;
            font-size: 72px;
            font-family: Georgia, "Times New Roman", serif;
            color: var(--color-accent);
            opacity: 0.4;
            line-height: 1;
        }

        .quote-block .quote-text {
            font-size: 17px;
            font-weight: 500;
            color: var(--color-dark-text);
            line-height: 1.7;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .quote-block .quote-source {
            font-size: 13.5px;
            color: var(--color-dark-secondary);
        }

        /* ===== Stats Mini Cards ===== */
        .mini-stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 28px 0;
        }

        .mini-stat-card {
            background-color: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }

        .mini-stat-card .stat-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .mini-stat-card .stat-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background-color: var(--color-dark-bg);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            background: radial-gradient(ellipse at 50% 50%, rgba(110, 29, 58, 0.35) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-dark-text);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-section p {
            font-size: 15.5px;
            color: var(--color-dark-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .btn {
            display: inline-block;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            cursor: pointer;
            text-align: center;
            transition: all var(--transition-fast);
            border: none;
            text-decoration: none;
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #fff;
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(110, 29, 58, 0.35);
        }

        .btn-primary:active {
            background-color: var(--color-primary-deeper);
            transform: translateY(0);
        }

        .btn-accent {
            background-color: var(--color-accent);
            color: var(--color-dark-bg);
            border: none;
        }

        .btn-accent:hover {
            background-color: var(--color-accent-hover);
            color: var(--color-dark-bg);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }

        .btn-outline:hover {
            background-color: rgba(110, 29, 58, 0.08);
            color: var(--color-primary);
            text-decoration: none;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-accent);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15.5px;
            font-weight: 600;
            color: var(--color-text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background-color: var(--color-light-bg);
        }

        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--color-accent);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--color-dark-bg);
            padding: 48px 0 0;
            color: var(--color-dark-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-dark-text);
            margin-bottom: 16px;
            letter-spacing: -0.2px;
        }

        .footer-col p {
            font-size: 13.5px;
            color: var(--color-dark-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

        .footer-col a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0 24px;
            font-size: 12.5px;
            color: var(--color-dark-secondary);
            gap: 8px;
        }

        .footer-bottom a {
            color: var(--color-dark-secondary);
            text-decoration: none;
            font-size: 12.5px;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .sidebar-desktop {
                display: none;
            }

            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }

            .mobile-header {
                display: flex;
            }

            .offcanvas-overlay.show {
                display: block;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .story-card-wide {
                grid-template-columns: 1fr;
            }

            .story-card-wide .story-image {
                height: 240px;
                min-height: 0;
                border-radius: var(--radius-large) var(--radius-large) 0 0;
            }

            .section-pad {
                padding: 48px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 639px) {
            .category-hero {
                padding: 40px 0 32px;
            }

            .category-hero h1 {
                font-size: 22px;
            }

            .category-hero .hero-sub {
                font-size: 14.5px;
            }

            .section-pad {
                padding: 36px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .story-card .story-body {
                padding: 18px 18px;
            }

            .story-card .story-title {
                font-size: 18px;
            }

            .story-card .story-image {
                height: 200px;
            }

            .story-card-wide .story-body {
                padding: 18px 18px;
            }

            .quote-block {
                padding: 24px 20px;
                margin: 24px 0;
            }

            .quote-block .quote-text {
                font-size: 15px;
            }

            .mini-stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .mini-stat-card {
                padding: 14px;
            }

            .mini-stat-card .stat-number {
                font-size: 22px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }

            .container-white {
                padding: 0 16px;
            }
        }

        @media (min-width: 1024px) {
            .mobile-header, .offcanvas-overlay, .mobile-drawer {
                display: none !important;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #6E1D3A;
            --color-primary-dark: #4E1529;
            --color-primary-deeper: #3A1020;
            --color-accent: #C49B5A;
            --color-accent-hover: #B58A4A;
            --color-accent-light-bg: #F0E6D6;
            --color-dark-bg: #2A1E26;
            --color-light-bg: #F7F3EF;
            --color-surface: #FFFFFF;
            --color-text: #3B332E;
            --color-text-secondary: #756A62;
            --color-border: #E4DCD4;
            --color-dark-text: #F7F3EF;
            --color-dark-secondary: #C8BBB2;
            --color-ink-green: #2F5D4A;
            --color-amber: #C47F17;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 4px;
            --radius-large: 12px;
            --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
            --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
            --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
            --transition-default: 0.25s ease;
            --transition-fast: 0.2s ease;
            --sidebar-width: 256px;
            --container-max: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            font-weight: 400;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-light-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
            text-decoration: underline;
            text-decoration-color: var(--color-accent);
            text-underline-offset: 3px;
        }

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-base);
            color: var(--color-text);
            margin: 0 0 12px;
            line-height: 1.4;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.2px;
        }

        h3 {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.4;
        }

        h4 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
        }

        p {
            margin: 0 0 16px;
        }

        .container-white {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 64px 0;
        }

        .section-pad-sm {
            padding: 40px 0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.2px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin-top: -6px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        /* sidebar navigation */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-dark-bg);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
        }

        .sidebar-logo {
            padding: 20px 20px 16px;
            border-bottom: 1px solid rgba(200, 187, 178, 0.15);
            margin-bottom: 16px;
        }

        .sidebar-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-dark-text);
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .sidebar-logo .logo-tagline {
            font-size: 12px;
            color: var(--color-dark-secondary);
            margin-top: 4px;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 0 12px;
        }

        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 11px 16px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--color-dark-secondary);
            border-left: 3px solid transparent;
            border-radius: 0 6px 6px 0;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .sidebar-nav a:hover {
            background: rgba(201, 167, 90, 0.12);
            color: var(--color-accent);
            text-decoration: none;
        }

        .sidebar-nav a.active {
            background: rgba(201, 167, 90, 0.10);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
        }

        .sidebar-nav .nav-icon {
            width: 20px;
            text-align: center;
            margin-right: 12px;
            font-size: 14px;
        }

        .sidebar-footer {
            padding: 12px 20px;
            border-top: 1px solid rgba(200, 187, 178, 0.15);
        }

        .sidebar-footer a {
            font-size: 12.5px;
            color: var(--color-dark-secondary);
            text-decoration: none;
            display: inline-block;
            margin-right: 12px;
            transition: color var(--transition-fast);
        }

        .sidebar-footer a:hover {
            color: var(--color-accent);
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* mobile top bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 56px;
            background: var(--color-dark-bg);
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            z-index: 998;
        }

        .mobile-topbar .mobile-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark-text);
        }

        .mobile-topbar .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-dark-text);
            font-size: 20px;
            cursor: pointer;
            border: none;
            background: transparent;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }

        .mobile-topbar .hamburger:hover {
            background: rgba(201, 167, 90, 0.15);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.45);
            z-index: 997;
        }

        .drawer-overlay.active {
            display: block;
        }

        .sidebar.mobile-open {
            transform: translateX(0);
        }

        /* hero */
        .hero-mini {
            background: var(--color-dark-bg);
            padding: 64px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .hero-mini::after {
            content: "";
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201, 167, 90, 0.08), transparent 70%);
            pointer-events: none;
        }

        .hero-mini .hero-breadcrumb {
            font-size: 13px;
            color: var(--color-dark-secondary);
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .hero-mini .hero-breadcrumb a {
            color: var(--color-dark-secondary);
            text-decoration: none;
        }

        .hero-mini .hero-breadcrumb a:hover {
            color: var(--color-accent);
        }

        .hero-mini h1 {
            color: var(--color-dark-text);
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
            letter-spacing: -0.5px;
        }

        .hero-mini .hero-subtitle {
            color: var(--color-dark-secondary);
            font-size: 16px;
            max-width: 700px;
            position: relative;
            z-index: 2;
            line-height: 1.8;
        }

        /* knowledge overview cards */
        .knowledge-overview-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }

        .knowledge-overview-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-default);
        }

        .knowledge-overview-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }

        .knowledge-overview-card .ko-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent-light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .knowledge-overview-card h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .knowledge-overview-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* accordion + cards hybrid */
        .hybrid-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .accordion-custom .accordion-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-title {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--color-text);
            padding: 16px 20px;
            border: none;
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            line-height: 1.5;
            transition: color var(--transition-fast);
        }

        .accordion-custom .accordion-title::before {
            content: "";
            width: 4px;
            height: 24px;
            background: transparent;
            border-radius: 2px;
            margin-right: 12px;
            transition: background var(--transition-fast);
        }

        .accordion-custom .is-active .accordion-title {
            color: var(--color-primary);
            background: var(--color-light-bg);
        }

        .accordion-custom .is-active .accordion-title::before {
            background: var(--color-accent);
        }

        .accordion-custom .accordion-title .accordion-arrow {
            font-size: 14px;
            transition: transform var(--transition-fast);
            color: var(--color-text-secondary);
        }

        .accordion-custom .is-active .accordion-title .accordion-arrow {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .accordion-custom .accordion-content {
            padding: 0 20px 20px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }

        .knowledge-card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .knowledge-mini-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-default);
        }

        .knowledge-mini-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }

        .knowledge-mini-card .km-icon {
            font-size: 22px;
            color: var(--color-accent);
            margin-bottom: 10px;
        }

        .knowledge-mini-card h4 {
            font-size: 15px;
            margin-bottom: 6px;
        }

        .knowledge-mini-card p {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* table */
        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            background: var(--color-surface);
            border: 1px solid var(--color-border);
        }

        .lottery-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
            background: var(--color-surface);
            min-width: 700px;
        }

        .lottery-table thead th {
            background: var(--color-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            border: none;
            white-space: nowrap;
        }

        .lottery-table tbody td {
            padding: 14px 16px;
            font-size: 14px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
        }

        .lottery-table tbody tr:nth-child(even) {
            background: var(--color-light-bg);
        }

        .lottery-table tbody tr:hover {
            background: var(--color-accent-light-bg);
        }

        /* deep article */
        .deep-article {
            background: var(--color-surface);
            border-radius: var(--radius-large);
            padding: 40px 48px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            line-height: 1.85;
        }

        .deep-article h3 {
            margin-top: 32px;
            margin-bottom: 16px;
            font-size: 20px;
        }

        .deep-article h3:first-child {
            margin-top: 0;
        }

        .deep-article p {
            margin-bottom: 16px;
            font-size: 15px;
            line-height: 1.85;
        }

        .deep-article .article-image-placeholder {
            margin: 24px 0;
            border-radius: var(--radius-large);
            overflow: hidden;
        }

        .deep-article .article-image-placeholder img {
            width: 100%;
            border-radius: var(--radius-large);
        }

        .article-quote {
            border-left: 4px solid var(--color-accent);
            padding: 16px 20px;
            background: var(--color-accent-light-bg);
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            font-size: 15px;
            color: var(--color-text);
        }

        .article-quote cite {
            display: block;
            font-style: normal;
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 8px;
        }

        /* misconception */
        .misconception-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            margin-top: 16px;
        }

        .misconception-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-default);
            position: relative;
            overflow: hidden;
        }

        .misconception-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--color-amber);
        }

        .misconception-card h3 {
            font-size: 17px;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .misconception-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* faq */
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-item .faq-question {
            padding: 16px 20px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 15.5px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all var(--transition-fast);
            font-family: var(--font-base);
        }

        .faq-item .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-item .faq-question i {
            font-size: 14px;
            color: var(--color-text-secondary);
            transition: transform var(--transition-fast);
        }

        .faq-item .faq-answer {
            padding: 0 20px 20px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: none;
            border-top: 1px solid var(--color-border);
            padding-top: 16px;
        }

        .faq-item.open .faq-question {
            background: var(--color-light-bg);
            color: var(--color-primary);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA */
        .cta-dark {
            background: var(--color-dark-bg);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-dark::after {
            content: "";
            position: absolute;
            bottom: -40%;
            left: 20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201, 167, 90, 0.1), transparent 70%);
            pointer-events: none;
        }

        .cta-dark h2 {
            color: var(--color-dark-text);
            font-size: 28px;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .cta-dark p {
            color: var(--color-dark-secondary);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 2;
            line-height: 1.7;
        }

        .cta-dark .btn-cta {
            display: inline-block;
            background: var(--color-accent);
            color: var(--color-dark-bg);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            text-decoration: none;
            transition: all var(--transition-default);
            position: relative;
            z-index: 2;
            border: none;
            cursor: pointer;
        }

        .cta-dark .btn-cta:hover {
            background: var(--color-accent-hover);
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }

        /* footer */
        .site-footer {
            background: var(--color-dark-bg);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: var(--color-dark-text);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col p {
            color: var(--color-dark-secondary);
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .footer-col a {
            color: var(--color-dark-secondary);
            font-size: 13.5px;
            display: block;
            margin-bottom: 8px;
            text-decoration: none;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

        .footer-col a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(200, 187, 178, 0.15);
            font-size: 12.5px;
            color: var(--color-dark-secondary);
        }

        .footer-bottom a {
            color: var(--color-dark-secondary);
            text-decoration: none;
            font-size: 12.5px;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* buttons general */
        .btn-primary {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: all var(--transition-default);
            font-family: var(--font-base);
            line-height: 1.4;
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: var(--color-primary-deeper);
        }

        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--color-primary);
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            border: 1.5px solid var(--color-primary);
            text-decoration: none;
            cursor: pointer;
            transition: all var(--transition-default);
            font-family: var(--font-base);
            line-height: 1.4;
        }

        .btn-secondary:hover {
            background: rgba(110, 29, 58, 0.08);
            color: var(--color-primary);
            text-decoration: none;
        }

        /* responsive */
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform var(--transition-default);
                position: fixed;
                z-index: 999;
            }

            .sidebar.mobile-open {
                transform: translateX(0);
            }

            .main-wrapper {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }

            .main-wrapper {
                padding-top: 56px;
            }

            .hybrid-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .knowledge-card-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .hero-mini h1 {
                font-size: 28px;
            }

            .deep-article {
                padding: 28px 24px;
            }

            .section-pad {
                padding: 48px 0;
            }
        }

        @media (max-width: 640px) {
            .knowledge-card-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .hero-mini {
                padding: 40px 0 32px;
            }

            .hero-mini h1 {
                font-size: 24px;
            }

            .hero-mini .hero-subtitle {
                font-size: 14px;
            }

            .section-title {
                font-size: 22px;
            }

            .deep-article {
                padding: 20px 16px;
            }

            .deep-article h3 {
                font-size: 18px;
            }

            .misconception-list {
                grid-template-columns: 1fr;
            }

            .knowledge-overview-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .cta-dark h2 {
                font-size: 22px;
            }
        }

/* roulang page: category6 */
:root {
        --color-primary: #6E1D3A;
        --color-primary-dark: #4E1529;
        --color-primary-deeper: #3A1020;
        --color-accent: #C49B5A;
        --color-accent-hover: #B58A4A;
        --color-accent-light-bg: #F0E6D6;
        --color-dark-bg: #2A1E26;
        --color-light-bg: #F7F3EF;
        --color-surface: #FFFFFF;
        --color-text: #3B332E;
        --color-text-secondary: #756A62;
        --color-border: #E4DCD4;
        --color-dark-text: #F7F3EF;
        --color-dark-secondary: #C8BBB2;
        --color-ink-green: #2F5D4A;
        --color-amber: #C47F17;
        --radius-card: 10px;
        --radius-btn: 8px;
        --radius-input: 6px;
        --radius-badge: 4px;
        --radius-large: 12px;
        --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
        --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
        --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
        --transition-default: 0.25s ease;
        --transition-fast: 0.2s ease;
        --sidebar-width: 256px;
        --container-max: 1200px;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

    html {
        font-size: 16px;
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        font-family: var(--font-base);
        font-weight: 400;
        font-size: 15px;
        line-height: 1.75;
        color: var(--color-text);
        background-color: var(--color-light-bg);
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }

    a {
        color: var(--color-primary);
        text-decoration: none;
        transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
    }

    a:hover {
        color: var(--color-accent);
        text-decoration: underline;
        text-decoration-color: var(--color-accent);
        text-underline-offset: 3px;
    }

    a:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
        border-radius: 2px;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: var(--radius-card);
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: var(--font-base);
        color: var(--color-text);
        margin-top: 0;
        font-weight: 700;
    }

    h1 {
        font-size: 34px;
        line-height: 1.25;
        letter-spacing: -0.5px;
        font-weight: 700;
        margin-bottom: 16px;
    }

    h2 {
        font-size: 26px;
        line-height: 1.3;
        letter-spacing: -0.2px;
        font-weight: 700;
        margin-bottom: 12px;
    }

    h3 {
        font-size: 19px;
        line-height: 1.4;
        font-weight: 600;
        margin-bottom: 10px;
    }

    h4 {
        font-size: 16px;
        line-height: 1.45;
        font-weight: 600;
        margin-bottom: 8px;
    }

    p {
        margin-top: 0;
        margin-bottom: 1.2em;
        line-height: 1.75;
    }

    ul, ol {
        padding-left: 1.4em;
        margin-bottom: 1.2em;
    }

    li {
        margin-bottom: 6px;
        line-height: 1.7;
    }

    .container-white {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 24px;
    }

    .section-pad {
        padding: 64px 0;
    }

    .section-pad-sm {
        padding: 42px 0;
    }

    .section-title {
        font-size: 26px;
        font-weight: 700;
        color: var(--color-text);
        margin-bottom: 12px;
        letter-spacing: -0.2px;
    }

    .section-subtitle {
        font-size: 15px;
        color: var(--color-text-secondary);
        max-width: 720px;
        margin-top: -4px;
        margin-bottom: 36px;
        line-height: 1.65;
    }

    .section-label {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.5px;
        color: var(--color-accent);
        text-transform: uppercase;
        margin-bottom: 8px;
    }

    /* ===== App Shell 布局 ===== */
    .app-shell {
        display: flex;
        min-height: 100vh;
    }

    .app-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--sidebar-width);
        height: 100vh;
        background-color: var(--color-dark-bg);
        z-index: 100;
        display: flex;
        flex-direction: column;
        overflow-y: auto;
        border-right: 1px solid rgba(200, 187, 178, 0.08);
    }

    .sidebar-logo {
        padding: 22px 20px 18px;
        border-bottom: 1px solid rgba(200, 187, 178, 0.15);
        margin-bottom: 14px;
        flex-shrink: 0;
    }

    .sidebar-logo .logo-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--color-dark-text);
        letter-spacing: -0.3px;
        line-height: 1.3;
    }

    .sidebar-logo .logo-tagline {
        font-size: 12px;
        color: var(--color-dark-secondary);
        margin-top: 4px;
        letter-spacing: 0.3px;
    }

    .sidebar-nav {
        flex: 1;
        overflow-y: auto;
        padding: 0 12px;
    }

    .sidebar-nav ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .sidebar-nav li {
        margin-bottom: 2px;
    }

    .sidebar-nav a {
        display: flex;
        align-items: center;
        padding: 11px 16px;
        font-size: 14.5px;
        font-weight: 500;
        color: var(--color-dark-secondary);
        border-left: 3px solid transparent;
        border-radius: 0 6px 6px 0;
        text-decoration: none;
        transition: all var(--transition-fast);
    }

    .sidebar-nav a:hover {
        background: rgba(201, 167, 90, 0.12);
        color: var(--color-accent);
        text-decoration: none;
    }

    .sidebar-nav a.active {
        background: rgba(201, 167, 90, 0.10);
        border-left-color: var(--color-accent);
        color: var(--color-accent);
        font-weight: 600;
    }

    .sidebar-nav .nav-icon {
        width: 20px;
        text-align: center;
        margin-right: 12px;
        font-size: 14px;
    }

    .sidebar-footer {
        padding: 12px 20px;
        border-top: 1px solid rgba(200, 187, 178, 0.15);
        flex-shrink: 0;
    }

    .sidebar-footer a {
        font-size: 12.5px;
        color: var(--color-dark-secondary);
        text-decoration: none;
        display: inline-block;
        margin-right: 12px;
        transition: color var(--transition-fast);
    }

    .sidebar-footer a:hover {
        color: var(--color-accent);
        text-decoration: underline;
    }

    .app-main {
        flex: 1;
        margin-left: var(--sidebar-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    /* ===== 移动端顶部栏 ===== */
    .mobile-topbar {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 56px;
        background-color: var(--color-dark-bg);
        z-index: 95;
        align-items: center;
        padding: 0 16px;
        border-bottom: 1px solid rgba(200, 187, 178, 0.12);
    }

    .mobile-topbar .logo-text {
        font-size: 17px;
        font-weight: 700;
        color: var(--color-dark-text);
        letter-spacing: -0.2px;
    }

    .mobile-topbar .hamburger-btn {
        margin-left: auto;
        background: none;
        border: none;
        color: var(--color-dark-text);
        font-size: 22px;
        cursor: pointer;
        padding: 6px 10px;
        border-radius: 6px;
        transition: background var(--transition-fast);
    }

    .mobile-topbar .hamburger-btn:hover {
        background: rgba(201, 167, 90, 0.15);
    }

    .mobile-topbar .hamburger-btn:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

    .mobile-drawer-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(42, 30, 38, 0.6);
        z-index: 96;
        opacity: 0;
        transition: opacity var(--transition-default);
    }

    .mobile-drawer-overlay.active {
        display: block;
        opacity: 1;
    }

    .mobile-drawer {
        position: fixed;
        top: 0;
        left: -280px;
        width: 280px;
        height: 100vh;
        background-color: var(--color-dark-bg);
        z-index: 97;
        transition: left var(--transition-default);
        display: flex;
        flex-direction: column;
        overflow-y: auto;
    }

    .mobile-drawer.open {
        left: 0;
    }

    .mobile-drawer .sidebar-logo {
        padding: 18px 20px;
    }

    .mobile-drawer .sidebar-nav {
        padding: 0 12px;
    }

    .mobile-drawer .sidebar-nav a {
        padding: 13px 16px;
        font-size: 15px;
    }

    .mobile-drawer .sidebar-footer {
        padding: 14px 20px;
    }

    .mobile-drawer-close {
        background: none;
        border: none;
        color: var(--color-dark-secondary);
        font-size: 20px;
        cursor: pointer;
        padding: 6px 10px;
        border-radius: 6px;
        position: absolute;
        top: 14px;
        right: 14px;
        transition: color var(--transition-fast);
    }

    .mobile-drawer-close:hover {
        color: var(--color-accent);
    }

    /* ===== Hero 区域（小Hero） ===== */
    .page-hero {
        background-color: var(--color-dark-bg);
        color: var(--color-dark-text);
        padding: 60px 0 48px;
        position: relative;
    }

    .page-hero .hero-badge {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.5px;
        color: var(--color-accent);
        text-transform: uppercase;
        margin-bottom: 12px;
    }

    .page-hero h1 {
        color: var(--color-dark-text);
        font-size: 32px;
        margin-bottom: 14px;
        letter-spacing: -0.5px;
        line-height: 1.3;
    }

    .page-hero .hero-description {
        color: var(--color-dark-secondary);
        font-size: 15px;
        max-width: 680px;
        line-height: 1.7;
        margin-bottom: 24px;
    }

    .page-hero .hero-cta-group {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    /* ===== 按钮样式 ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 24px;
        font-size: 15px;
        font-weight: 500;
        border-radius: var(--radius-btn);
        cursor: pointer;
        transition: all var(--transition-fast);
        border: none;
        font-family: var(--font-base);
        text-decoration: none;
        line-height: 1.4;
    }

    .btn:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

    .btn-primary {
        background-color: var(--color-primary);
        color: #fff;
        border: none;
    }

    .btn-primary:hover {
        background-color: var(--color-primary-dark);
        color: #fff;
        text-decoration: none;
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(110, 29, 58, 0.25);
    }

    .btn-primary:active {
        background-color: var(--color-primary-deeper);
        transform: translateY(0);
    }

    .btn-secondary {
        background: transparent;
        color: var(--color-primary);
        border: 1.5px solid var(--color-primary);
    }

    .btn-secondary:hover {
        background: rgba(110, 29, 58, 0.08);
        color: var(--color-primary-dark);
        text-decoration: none;
        transform: translateY(-1px);
    }

    .btn-secondary:active {
        background: rgba(110, 29, 58, 0.18);
        transform: translateY(0);
    }

    .btn-accent {
        background-color: var(--color-accent);
        color: var(--color-dark-bg);
        border: none;
    }

    .btn-accent:hover {
        background-color: var(--color-accent-hover);
        color: var(--color-dark-bg);
        text-decoration: none;
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(196, 155, 90, 0.3);
    }

    .btn-sm {
        padding: 8px 16px;
        font-size: 13px;
        border-radius: 6px;
    }

    .btn-lg {
        padding: 14px 32px;
        font-size: 16px;
    }

    /* ===== 卡片样式 ===== */
    .stat-card {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        border: 1px solid var(--color-border);
        padding: 24px;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-default);
    }

    .stat-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
        border-color: var(--color-accent);
    }

    .stat-card .stat-icon {
        font-size: 28px;
        color: var(--color-accent);
        margin-bottom: 14px;
    }

    .stat-card .stat-number {
        font-family: var(--font-mono);
        font-size: 30px;
        font-weight: 600;
        color: var(--color-primary);
        line-height: 1.2;
        letter-spacing: -1px;
        margin-bottom: 6px;
    }

    .stat-card .stat-label {
        font-size: 14px;
        color: var(--color-text-secondary);
        font-weight: 500;
    }

    .stat-card .stat-trend {
        font-size: 12.5px;
        font-weight: 600;
        color: var(--color-ink-green);
        margin-top: 8px;
        display: inline-block;
    }

    /* ===== 数据面板大数字 ===== */
    .data-metrics-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 18px;
    }

    .data-metric-panel {
        background: var(--color-surface);
        border-radius: var(--radius-large);
        border: 1px solid var(--color-border);
        padding: 28px 24px;
        text-align: left;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-default);
        position: relative;
        overflow: hidden;
    }

    .data-metric-panel::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        opacity: 0.75;
    }

    .data-metric-panel:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
        border-color: var(--color-accent);
    }

    .data-metric-panel .metric-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--color-text-secondary);
        text-transform: uppercase;
        letter-spacing: 0.4px;
        margin-bottom: 10px;
    }

    .data-metric-panel .metric-value {
        font-family: var(--font-mono);
        font-size: 40px;
        font-weight: 700;
        color: var(--color-primary);
        line-height: 1.15;
        letter-spacing: -1.5px;
        margin-bottom: 6px;
    }

    .data-metric-panel .metric-unit {
        font-size: 14px;
        color: var(--color-text-secondary);
        font-weight: 400;
        font-family: var(--font-base);
        letter-spacing: 0;
    }

    .data-metric-panel .metric-desc {
        font-size: 13px;
        color: var(--color-text-secondary);
        line-height: 1.55;
        margin-top: 8px;
    }

    /* ===== 表格样式 ===== */
    .table-container {
        overflow-x: auto;
        border-radius: var(--radius-card);
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-card);
        background: var(--color-surface);
    }

    .data-table {
        width: 100%;
        border-collapse: collapse;
        margin: 0;
        font-size: 14px;
    }

    .data-table thead th {
        background-color: var(--color-primary);
        color: #fff;
        font-weight: 600;
        font-size: 13.5px;
        padding: 14px 16px;
        text-align: left;
        white-space: nowrap;
        border: none;
        letter-spacing: 0.3px;
    }

    .data-table tbody td {
        padding: 12px 16px;
        border-bottom: 1px solid var(--color-border);
        color: var(--color-text);
        font-size: 14px;
        white-space: nowrap;
    }

    .data-table tbody tr:nth-child(even) {
        background-color: #F7F3EF;
    }

    .data-table tbody tr:hover {
        background-color: var(--color-accent-light-bg);
        transition: background var(--transition-fast);
    }

    .data-table tbody tr:last-child td {
        border-bottom: none;
    }

    .data-table .number-cell {
        font-family: var(--font-mono);
        font-weight: 600;
        color: var(--color-primary);
        font-size: 15px;
    }

    .data-table .badge-hot {
        display: inline-block;
        background: rgba(196, 155, 90, 0.15);
        color: var(--color-amber);
        font-size: 12px;
        font-weight: 600;
        padding: 3px 10px;
        border-radius: var(--radius-badge);
        letter-spacing: 0.3px;
    }

    .data-table .badge-cold {
        display: inline-block;
        background: rgba(117, 106, 98, 0.12);
        color: var(--color-text-secondary);
        font-size: 12px;
        font-weight: 600;
        padding: 3px 10px;
        border-radius: var(--radius-badge);
        letter-spacing: 0.3px;
    }

    /* ===== 图表占位样式 ===== */
    .chart-placeholder {
        background: var(--color-dark-bg);
        border-radius: var(--radius-large);
        padding: 32px 28px;
        position: relative;
        overflow: hidden;
        min-height: 300px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .chart-placeholder::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
        opacity: 0.2;
        border-radius: var(--radius-large);
    }

    .chart-placeholder .chart-info {
        position: relative;
        z-index: 2;
        text-align: center;
        color: var(--color-dark-text);
    }

    .chart-placeholder .chart-info .chart-icon {
        font-size: 40px;
        color: var(--color-accent);
        margin-bottom: 16px;
    }

    .chart-placeholder .chart-info .chart-title {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 8px;
        color: var(--color-dark-text);
    }

    .chart-placeholder .chart-info .chart-desc {
        font-size: 13.5px;
        color: var(--color-dark-secondary);
        max-width: 480px;
        margin: 0 auto;
        line-height: 1.6;
    }

    /* ===== 排名表格区 ===== */
    .rank-section {
        background: var(--color-light-bg);
    }

    .rank-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: 20px;
    }

    .rank-header .rank-title {
        font-size: 19px;
        font-weight: 600;
        color: var(--color-text);
    }

    .rank-header .rank-badge {
        font-size: 13px;
        font-weight: 600;
        color: var(--color-accent);
        background: rgba(196, 155, 90, 0.12);
        padding: 6px 14px;
        border-radius: var(--radius-badge);
    }

    /* ===== 区间分布样式 ===== */
    .range-distribution {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 14px;
    }

    .range-item {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        border: 1px solid var(--color-border);
        padding: 18px 14px;
        text-align: center;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-default);
    }

    .range-item:hover {
        transform: translateY(-2px);
        border-color: var(--color-accent);
        box-shadow: var(--shadow-card-hover);
    }

    .range-item .range-label {
        font-size: 13px;
        color: var(--color-text-secondary);
        font-weight: 500;
        margin-bottom: 8px;
    }

    .range-item .range-count {
        font-family: var(--font-mono);
        font-size: 24px;
        font-weight: 700;
        color: var(--color-primary);
        line-height: 1.2;
    }

    .range-item .range-bar {
        height: 5px;
        background: var(--color-accent-light-bg);
        border-radius: 3px;
        margin-top: 10px;
        overflow: hidden;
    }

    .range-item .range-bar-fill {
        height: 100%;
        background: var(--color-accent);
        border-radius: 3px;
        transition: width var(--transition-default);
    }

    /* ===== 奇偶比例 ===== */
    .ratio-card {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        border: 1px solid var(--color-border);
        padding: 24px;
        box-shadow: var(--shadow-card);
        text-align: center;
    }

    .ratio-card .ratio-value {
        font-family: var(--font-mono);
        font-size: 28px;
        font-weight: 700;
        color: var(--color-primary);
        margin-bottom: 6px;
        letter-spacing: -0.5px;
    }

    .ratio-card .ratio-label {
        font-size: 14px;
        color: var(--color-text-secondary);
        font-weight: 500;
    }

    /* ===== 长文区样式 ===== */
    .article-block {
        background: var(--color-surface);
        border-radius: var(--radius-large);
        border: 1px solid var(--color-border);
        padding: 42px 48px;
        box-shadow: var(--shadow-card);
        line-height: 1.8;
    }

    .article-block h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--color-text);
        margin-top: 32px;
        margin-bottom: 16px;
        line-height: 1.4;
    }

    .article-block h3:first-child {
        margin-top: 0;
    }

    .article-block p {
        font-size: 15px;
        line-height: 1.8;
        color: var(--color-text);
        margin-bottom: 18px;
    }

    .article-block .article-image {
        margin: 24px 0;
        border-radius: var(--radius-large);
        overflow: hidden;
    }

    .article-block .article-image img {
        width: 100%;
        border-radius: var(--radius-large);
    }

    .article-block blockquote {
        border-left: 3px solid var(--color-accent);
        padding: 16px 20px;
        margin: 22px 0;
        background: var(--color-accent-light-bg);
        border-radius: 0 8px 8px 0;
        font-size: 14.5px;
        color: var(--color-text);
        line-height: 1.7;
    }

    /* ===== FAQ 手风琴 ===== */
    .faq-accordion {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .faq-accordion .accordion-item {
        margin-bottom: 10px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        overflow: hidden;
        background: var(--color-surface);
        transition: all var(--transition-fast);
    }

    .faq-accordion .accordion-title {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px;
        font-size: 15.5px;
        font-weight: 600;
        color: var(--color-text);
        cursor: pointer;
        text-decoration: none;
        transition: all var(--transition-fast);
        border-left: 3px solid transparent;
        line-height: 1.5;
    }

    .faq-accordion .accordion-title:hover {
        background: var(--color-accent-light-bg);
        text-decoration: none;
        color: var(--color-primary);
    }

    .faq-accordion .accordion-title .faq-toggle-icon {
        font-size: 14px;
        color: var(--color-accent);
        transition: transform var(--transition-fast);
        flex-shrink: 0;
        margin-left: 12px;
    }

    .faq-accordion .is-active .accordion-title {
        border-left-color: var(--color-accent);
        background: var(--color-light-bg);
        color: var(--color-primary);
    }

    .faq-accordion .is-active .faq-toggle-icon {
        transform: rotate(180deg);
    }

    .faq-accordion .accordion-content {
        padding: 16px 20px 20px;
        font-size: 14.5px;
        color: var(--color-text-secondary);
        line-height: 1.7;
        border-top: 1px solid var(--color-border);
        display: none;
    }

    .faq-accordion .is-active .accordion-content {
        display: block;
    }

    /* ===== CTA 区域 ===== */
    .cta-section {
        background-color: var(--color-dark-bg);
        padding: 60px 0;
        text-align: center;
    }

    .cta-section .cta-title {
        color: var(--color-dark-text);
        font-size: 26px;
        font-weight: 700;
        margin-bottom: 12px;
        letter-spacing: -0.2px;
    }

    .cta-section .cta-desc {
        color: var(--color-dark-secondary);
        font-size: 15px;
        max-width: 560px;
        margin: 0 auto 28px;
        line-height: 1.7;
    }

    .cta-section .cta-btn-group {
        display: flex;
        justify-content: center;
        gap: 14px;
        flex-wrap: wrap;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background-color: var(--color-dark-bg);
        color: var(--color-dark-secondary);
        padding: 48px 0 20px;
        margin-top: auto;
        border-top: 1px solid rgba(200, 187, 178, 0.1);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
        margin-bottom: 32px;
    }

    .footer-col h4 {
        color: var(--color-dark-text);
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 16px;
        letter-spacing: 0.2px;
    }

    .footer-col p {
        font-size: 13.5px;
        color: var(--color-dark-secondary);
        line-height: 1.65;
        margin-bottom: 10px;
    }

    .footer-col a {
        display: block;
        font-size: 13.5px;
        color: var(--color-dark-secondary);
        text-decoration: none;
        margin-bottom: 8px;
        transition: color var(--transition-fast);
        line-height: 1.5;
    }

    .footer-col a:hover {
        color: var(--color-accent);
        text-decoration: underline;
    }

    .footer-bottom {
        border-top: 1px solid rgba(200, 187, 178, 0.12);
        padding-top: 18px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 8px 16px;
        font-size: 12.5px;
        color: var(--color-dark-secondary);
    }

    .footer-bottom a {
        color: var(--color-dark-secondary);
        text-decoration: none;
        transition: color var(--transition-fast);
        font-size: 12.5px;
    }

    .footer-bottom a:hover {
        color: var(--color-accent);
        text-decoration: underline;
    }

    /* ===== 响应式设计 ===== */
    @media (max-width: 1023px) {
        .app-sidebar {
            display: none;
        }
        .app-main {
            margin-left: 0;
        }
        .mobile-topbar {
            display: flex;
        }
        .page-hero {
            padding-top: 72px;
        }
        .data-metrics-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }
        .range-distribution {
            grid-template-columns: repeat(3, 1fr);
        }
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .article-block {
            padding: 32px 24px;
        }
        h1 {
            font-size: 28px;
        }
        .section-pad {
            padding: 48px 0;
        }
    }

    @media (max-width: 639px) {
        .container-white {
            padding: 0 16px;
        }
        .data-metrics-grid {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .data-metric-panel {
            padding: 20px 16px;
        }
        .data-metric-panel .metric-value {
            font-size: 28px;
        }
        .range-distribution {
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .article-block {
            padding: 24px 16px;
            border-radius: var(--radius-card);
        }
        h1 {
            font-size: 24px;
        }
        h2 {
            font-size: 22px;
        }
        .section-pad {
            padding: 36px 0;
        }
        .page-hero {
            padding: 60px 0 36px;
        }
        .page-hero h1 {
            font-size: 24px;
        }
        .btn {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 12px 26px;
            font-size: 15px;
        }
        .cta-section {
            padding: 42px 0;
        }
        .cta-section .cta-title {
            font-size: 22px;
        }
        .stat-card .stat-number {
            font-size: 24px;
        }
        .rank-header {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    @media (max-width: 399px) {
        .data-metrics-grid {
            grid-template-columns: 1fr;
        }
        .range-distribution {
            grid-template-columns: 1fr 1fr;
        }
    }

    /* ===== 工具类 ===== */
    .text-center {
        text-align: center;
    }
    .mt-8 {
        margin-top: 8px;
    }
    .mt-16 {
        margin-top: 16px;
    }
    .mt-24 {
        margin-top: 24px;
    }
    .mt-32 {
        margin-top: 32px;
    }
    .mb-8 {
        margin-bottom: 8px;
    }
    .mb-16 {
        margin-bottom: 16px;
    }
    .mb-24 {
        margin-bottom: 24px;
    }
    .mb-32 {
        margin-bottom: 32px;
    }
    .gap-16 {
        gap: 16px;
    }
    .gap-20 {
        gap: 20px;
    }
    .flex-wrap {
        flex-wrap: wrap;
    }
    .d-flex {
        display: flex;
    }
    .align-center {
        align-items: center;
    }
    .justify-between {
        justify-content: space-between;
    }
    .mono {
        font-family: var(--font-mono);
    }

/* roulang page: category7 */
:root {
        --color-primary: #6E1D3A;
        --color-primary-dark: #4E1529;
        --color-primary-deeper: #3A1020;
        --color-accent: #C49B5A;
        --color-accent-hover: #B58A4A;
        --color-accent-light-bg: #F0E6D6;
        --color-dark-bg: #2A1E26;
        --color-light-bg: #F7F3EF;
        --color-surface: #FFFFFF;
        --color-text: #3B332E;
        --color-text-secondary: #756A62;
        --color-border: #E4DCD4;
        --color-dark-text: #F7F3EF;
        --color-dark-secondary: #C8BBB2;
        --color-ink-green: #2F5D4A;
        --color-amber: #C47F17;
        --radius-card: 10px;
        --radius-btn: 8px;
        --radius-input: 6px;
        --radius-badge: 4px;
        --radius-large: 12px;
        --shadow-card: 0 1px 4px rgba(42, 30, 38, 0.05), 0 4px 16px rgba(42, 30, 38, 0.07);
        --shadow-card-hover: 0 4px 12px rgba(42, 30, 38, 0.10), 0 12px 28px rgba(42, 30, 38, 0.12);
        --font-base: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        --font-mono: "SF Mono", "Roboto Mono", "Menlo", "Consolas", monospace;
        --transition-default: 0.25s ease;
        --transition-fast: 0.2s ease;
        --sidebar-width: 256px;
        --container-max: 1200px;
        --topbar-height: 56px;
    }

    html {
        font-size: 16px;
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        font-family: var(--font-base);
        font-weight: 400;
        font-size: 15px;
        line-height: 1.75;
        color: var(--color-text);
        background-color: var(--color-light-bg);
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }

    a {
        color: var(--color-primary);
        text-decoration: none;
        transition: color var(--transition-fast), text-decoration-color var(--transition-fast), background var(--transition-fast);
    }

    a:hover {
        color: var(--color-accent);
        text-decoration: underline;
        text-decoration-color: var(--color-accent);
        text-underline-offset: 3px;
    }

    a:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
        border-radius: 2px;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: var(--radius-card);
    }

    .container-white {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 24px;
    }

    .section-pad {
        padding: 64px 0;
    }

    .section-pad-sm {
        padding: 40px 0;
    }

    .section-subtitle {
        font-size: 15px;
        color: var(--color-text-secondary);
        max-width: 720px;
        margin-top: -6px;
        margin-bottom: 32px;
    }

    .section-title {
        font-size: 26px;
        font-weight: 700;
        color: var(--color-text);
        margin-bottom: 12px;
        line-height: 1.3;
    }

    .section-label {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.5px;
        color: var(--color-accent);
        text-transform: uppercase;
        margin-bottom: 8px;
    }

    /* App Shell Layout */
    .app-shell {
        display: flex;
        min-height: 100vh;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--sidebar-width);
        height: 100vh;
        background: var(--color-dark-bg);
        display: flex;
        flex-direction: column;
        z-index: 100;
        overflow-y: auto;
    }

    .sidebar-logo {
        padding: 0 20px 20px;
        border-bottom: 1px solid rgba(200, 187, 178, 0.15);
        margin-bottom: 16px;
        padding-top: 24px;
    }

    .sidebar-logo .logo-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--color-dark-text);
        letter-spacing: -0.3px;
        line-height: 1.3;
    }

    .sidebar-logo .logo-tagline {
        font-size: 12px;
        color: var(--color-dark-secondary);
        margin-top: 4px;
    }

    .sidebar-nav {
        flex: 1;
        overflow-y: auto;
        padding: 0 12px;
    }

    .sidebar-nav ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .sidebar-nav li {
        margin-bottom: 2px;
    }

    .sidebar-nav a {
        display: flex;
        align-items: center;
        padding: 11px 16px;
        font-size: 14.5px;
        font-weight: 500;
        color: var(--color-dark-secondary);
        border-left: 3px solid transparent;
        border-radius: 0 6px 6px 0;
        text-decoration: none;
        transition: all var(--transition-fast);
    }

    .sidebar-nav a:hover {
        background: rgba(201, 167, 90, 0.12);
        color: var(--color-accent);
        text-decoration: none;
    }

    .sidebar-nav a.active {
        background: rgba(201, 167, 90, 0.10);
        border-left-color: var(--color-accent);
        color: var(--color-accent);
        font-weight: 600;
    }

    .sidebar-nav .nav-icon {
        width: 20px;
        text-align: center;
        margin-right: 12px;
        font-size: 14px;
    }

    .sidebar-footer {
        padding: 12px 20px;
        border-top: 1px solid rgba(200, 187, 178, 0.15);
    }

    .sidebar-footer a {
        font-size: 12.5px;
        color: var(--color-dark-secondary);
        text-decoration: none;
        display: inline-block;
        margin-right: 12px;
        transition: color var(--transition-fast);
    }

    .sidebar-footer a:hover {
        color: var(--color-accent);
        text-decoration: none;
    }

    .main-content {
        flex: 1;
        margin-left: var(--sidebar-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    /* Mobile Topbar */
    .mobile-topbar {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: var(--topbar-height);
        background: var(--color-dark-bg);
        align-items: center;
        justify-content: space-between;
        padding: 0 16px;
        z-index: 200;
        box-shadow: 0 2px 8px rgba(42, 30, 38, 0.2);
    }

    .mobile-topbar .logo-text {
        font-size: 17px;
        font-weight: 700;
        color: var(--color-dark-text);
        letter-spacing: -0.2px;
    }

    .mobile-menu-btn {
        background: transparent;
        border: none;
        color: var(--color-dark-text);
        font-size: 22px;
        cursor: pointer;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--radius-btn);
        transition: background var(--transition-fast);
    }

    .mobile-menu-btn:hover {
        background: rgba(201, 167, 90, 0.15);
    }

    .mobile-menu-btn:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

    .drawer-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(42, 30, 38, 0.55);
        z-index: 150;
        opacity: 0;
        transition: opacity var(--transition-default);
    }

    .drawer-overlay.show {
        opacity: 1;
    }

    .mobile-drawer {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        background: var(--color-dark-bg);
        z-index: 170;
        transform: translateX(-100%);
        transition: transform var(--transition-default);
        display: flex;
        flex-direction: column;
    }

    .mobile-drawer.open {
        transform: translateX(0);
    }

    .mobile-drawer .sidebar-logo {
        padding-top: 24px;
    }

    .mobile-drawer-close {
        position: absolute;
        top: 10px;
        right: 10px;
        background: transparent;
        border: none;
        color: var(--color-dark-secondary);
        font-size: 20px;
        cursor: pointer;
        width: 36px;
        height: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        transition: background var(--transition-fast);
    }

    .mobile-drawer-close:hover {
        background: rgba(201, 167, 90, 0.15);
        color: var(--color-accent);
    }

    .mobile-drawer .sidebar-nav {
        padding: 0 12px;
    }

    .mobile-drawer .sidebar-footer {
        margin-top: auto;
    }

    /* Hero Section */
    .service-hero {
        background: var(--color-dark-bg);
        padding: 48px 0 56px;
        position: relative;
        overflow: hidden;
    }

    .service-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        opacity: 0.15;
        pointer-events: none;
    }

    .service-hero .container-white {
        position: relative;
        z-index: 1;
    }

    .service-hero h1 {
        font-size: 34px;
        font-weight: 700;
        color: var(--color-dark-text);
        line-height: 1.3;
        letter-spacing: -0.5px;
        margin-bottom: 16px;
    }

    .service-hero .hero-subtitle {
        font-size: 16px;
        color: var(--color-dark-secondary);
        max-width: 680px;
        line-height: 1.7;
        margin-bottom: 24px;
    }

    .service-hero .hero-cta-group {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }

    .hero-number-preview {
        display: flex;
        gap: 8px;
        margin-top: 24px;
        flex-wrap: wrap;
    }

    .hero-number-preview .num-block {
        width: 48px;
        height: 48px;
        background: var(--color-accent-light-bg);
        border-radius: var(--radius-card);
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--font-mono);
        font-size: 20px;
        font-weight: 600;
        color: var(--color-primary);
        box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    }

    .hero-number-preview .num-label {
        font-size: 11px;
        color: var(--color-dark-secondary);
        text-align: center;
        margin-top: 4px;
    }

    /* Buttons */
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--color-primary);
        color: #fff;
        border: none;
        padding: 12px 24px;
        font-size: 15px;
        font-weight: 500;
        font-family: var(--font-base);
        border-radius: var(--radius-btn);
        cursor: pointer;
        transition: background var(--transition-fast), box-shadow var(--transition-fast);
        text-decoration: none;
    }

    .btn-primary:hover {
        background: var(--color-primary-dark);
        color: #fff;
        text-decoration: none;
        box-shadow: 0 4px 12px rgba(78, 21, 41, 0.3);
    }

    .btn-primary:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

    .btn-primary:active {
        background: var(--color-primary-deeper);
    }

    .btn-secondary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        color: var(--color-primary);
        border: 1.5px solid var(--color-primary);
        padding: 11px 22px;
        font-size: 15px;
        font-weight: 500;
        font-family: var(--font-base);
        border-radius: var(--radius-btn);
        cursor: pointer;
        transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
        text-decoration: none;
    }

    .btn-secondary:hover {
        background: rgba(110, 29, 58, 0.08);
        color: var(--color-primary);
        text-decoration: none;
        border-color: var(--color-primary);
    }

    .btn-secondary:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

    .btn-accent {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--color-accent);
        color: var(--color-dark-bg);
        border: none;
        padding: 12px 24px;
        font-size: 15px;
        font-weight: 600;
        font-family: var(--font-base);
        border-radius: var(--radius-btn);
        cursor: pointer;
        transition: background var(--transition-fast);
        text-decoration: none;
    }

    .btn-accent:hover {
        background: var(--color-accent-hover);
        color: var(--color-dark-bg);
        text-decoration: none;
    }

    .btn-accent:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

    /* Cards */
    .content-card {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--color-border);
        transition: transform var(--transition-default), box-shadow var(--transition-default);
        overflow: hidden;
    }

    .content-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
    }

    .content-card .card-body {
        padding: 24px;
    }

    .content-card .card-title {
        font-size: 18px;
        font-weight: 600;
        color: var(--color-text);
        margin-bottom: 8px;
        line-height: 1.4;
    }

    .content-card .card-text {
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.65;
        margin-bottom: 0;
    }

    .content-card img {
        width: 100%;
        height: auto;
        object-fit: cover;
        border-radius: var(--radius-card) var(--radius-card) 0 0;
    }

    /* Pricing Cards */
    .pricing-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        align-items: stretch;
    }

    .pricing-card {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--color-border);
        padding: 32px 24px;
        transition: transform var(--transition-default), box-shadow var(--transition-default), border-color var(--transition-default);
        display: flex;
        flex-direction: column;
        position: relative;
    }

    .pricing-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-card-hover);
        border-color: var(--color-accent);
    }

    .pricing-card.featured {
        border: 2px solid var(--color-accent);
        background: linear-gradient(135deg, var(--color-surface) 60%, var(--color-accent-light-bg) 100%);
    }

    .pricing-card .pricing-badge {
        position: absolute;
        top: -10px;
        right: 20px;
        background: var(--color-accent);
        color: var(--color-dark-bg);
        font-size: 11px;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: var(--radius-badge);
        letter-spacing: 0.5px;
    }

    .pricing-card .plan-name {
        font-size: 17px;
        font-weight: 700;
        color: var(--color-text);
        margin-bottom: 4px;
    }

    .pricing-card .plan-desc {
        font-size: 13px;
        color: var(--color-text-secondary);
        margin-bottom: 16px;
    }

    .pricing-card .price-amount {
        font-family: var(--font-mono);
        font-size: 32px;
        font-weight: 700;
        color: var(--color-primary);
        margin-bottom: 4px;
        line-height: 1.2;
    }

    .pricing-card .price-unit {
        font-size: 14px;
        color: var(--color-text-secondary);
        font-weight: 400;
        font-family: var(--font-base);
    }

    .pricing-card .price-note {
        font-size: 12px;
        color: var(--color-amber);
        margin-bottom: 20px;
    }

    .pricing-card .feature-list {
        list-style: none;
        margin: 0 0 24px;
        padding: 0;
        flex: 1;
    }

    .pricing-card .feature-list li {
        font-size: 14px;
        color: var(--color-text);
        padding: 6px 0;
        display: flex;
        align-items: flex-start;
        gap: 8px;
        line-height: 1.55;
    }

    .pricing-card .feature-list li i {
        color: var(--color-ink-green);
        font-size: 14px;
        margin-top: 3px;
        flex-shrink: 0;
    }

    .pricing-card .feature-list li.not-included {
        color: var(--color-text-secondary);
    }

    .pricing-card .feature-list li.not-included i {
        color: var(--color-text-secondary);
    }

    .pricing-card .btn-primary,
    .pricing-card .btn-secondary,
    .pricing-card .btn-accent {
        width: 100%;
        justify-content: center;
    }

    /* Steps */
    .steps-bar {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        margin: 32px 0;
    }

    .step-card {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--color-border);
        padding: 24px;
        text-align: center;
        position: relative;
        transition: transform var(--transition-default), box-shadow var(--transition-default);
    }

    .step-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
    }

    .step-card .step-number {
        width: 40px;
        height: 40px;
        background: var(--color-primary);
        color: #fff;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--font-mono);
        font-size: 18px;
        font-weight: 700;
        margin: 0 auto 12px;
    }

    .step-card .step-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--color-text);
        margin-bottom: 6px;
    }

    .step-card .step-text {
        font-size: 13.5px;
        color: var(--color-text-secondary);
        line-height: 1.6;
        margin: 0;
    }

    /* Form */
    .subscription-form-wrap {
        background: var(--color-surface);
        border-radius: var(--radius-large);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--color-border);
        padding: 40px 36px;
    }

    .subscription-form-wrap label {
        font-size: 13.5px;
        font-weight: 500;
        color: var(--color-text);
        margin-bottom: 4px;
        display: block;
    }

    .subscription-form-wrap input[type="text"],
    .subscription-form-wrap input[type="email"],
    .subscription-form-wrap select {
        width: 100%;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-input);
        padding: 10px 14px;
        font-size: 14px;
        font-family: var(--font-base);
        color: var(--color-text);
        background: var(--color-light-bg);
        transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        margin-bottom: 16px;
    }

    .subscription-form-wrap input:focus,
    .subscription-form-wrap select:focus {
        border-color: var(--color-accent);
        box-shadow: 0 0 0 2px rgba(196, 155, 90, 0.2);
        outline: none;
    }

    .subscription-form-wrap select {
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23756A62' d='M1.41 0L6 4.58L10.59 0L12 1.41L6 7.41L0 1.41z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 14px center;
        padding-right: 36px;
    }

    .subscription-form-wrap .btn-primary {
        width: 100%;
        justify-content: center;
        margin-top: 4px;
    }

    /* Service Comparison Table */
    .comparison-table-wrap {
        overflow-x: auto;
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--color-border);
    }

    .comparison-table {
        width: 100%;
        border-collapse: collapse;
        background: var(--color-surface);
        min-width: 600px;
    }

    .comparison-table th {
        background: var(--color-primary);
        color: #fff;
        font-size: 14px;
        font-weight: 600;
        padding: 14px 16px;
        text-align: left;
        white-space: nowrap;
    }

    .comparison-table td {
        font-size: 14px;
        color: var(--color-text);
        padding: 12px 16px;
        border-bottom: 1px solid var(--color-border);
    }

    .comparison-table tr:nth-child(even) td {
        background: var(--color-light-bg);
    }

    .comparison-table .check-icon {
        color: var(--color-ink-green);
        font-weight: 600;
    }

    .comparison-table .dash-icon {
        color: var(--color-text-secondary);
    }

    /* FAQ */
    .accordion-section {
        max-width: 800px;
        margin: 0 auto;
    }

    .accordion-item {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        margin-bottom: 12px;
        overflow: hidden;
        transition: box-shadow var(--transition-default);
    }

    .accordion-item.active {
        box-shadow: var(--shadow-card);
    }

    .accordion-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--color-text);
        transition: background var(--transition-fast);
        border: none;
        background: transparent;
        width: 100%;
        text-align: left;
        font-family: var(--font-base);
        gap: 12px;
    }

    .accordion-header:hover {
        background: var(--color-light-bg);
    }

    .accordion-header:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: -2px;
        border-radius: var(--radius-card);
    }

    .accordion-header .accordion-icon {
        transition: transform var(--transition-fast);
        color: var(--color-accent);
        flex-shrink: 0;
    }

    .accordion-item.active .accordion-icon {
        transform: rotate(180deg);
    }

    .accordion-body {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-default);
    }

    .accordion-item.active .accordion-body {
        max-height: 600px;
    }

    .accordion-body-inner {
        padding: 0 20px 20px;
        font-size: 14.5px;
        color: var(--color-text-secondary);
        line-height: 1.7;
        border-top: 1px solid var(--color-border);
        padding-top: 16px;
    }

    .accordion-body-inner p {
        margin: 0;
    }

    /* Info Cards Row */
    .info-card-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .info-card {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--color-border);
        padding: 24px;
        transition: transform var(--transition-default), box-shadow var(--transition-default);
    }

    .info-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
    }

    .info-card .info-icon {
        width: 44px;
        height: 44px;
        background: var(--color-accent-light-bg);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: var(--color-primary);
        margin-bottom: 12px;
    }

    .info-card .info-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--color-text);
        margin-bottom: 6px;
    }

    .info-card .info-text {
        font-size: 13.5px;
        color: var(--color-text-secondary);
        line-height: 1.6;
        margin: 0;
    }

    /* CTA */
    .service-cta {
        background: var(--color-dark-bg);
        padding: 56px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .service-cta::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
        opacity: 0.12;
        pointer-events: none;
    }

    .service-cta .container-white {
        position: relative;
        z-index: 1;
    }

    .service-cta h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--color-dark-text);
        margin-bottom: 12px;
    }

    .service-cta p {
        color: var(--color-dark-secondary);
        font-size: 15px;
        max-width: 560px;
        margin: 0 auto 24px;
        line-height: 1.7;
    }

    /* Footer */
    .site-footer {
        background: var(--color-dark-bg);
        padding: 48px 0 24px;
        color: var(--color-dark-secondary);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        margin-bottom: 32px;
    }

    .footer-col h4 {
        font-size: 16px;
        font-weight: 600;
        color: var(--color-dark-text);
        margin-bottom: 16px;
    }

    .footer-col p {
        font-size: 13.5px;
        line-height: 1.7;
        margin-bottom: 8px;
        color: var(--color-dark-secondary);
    }

    .footer-col a {
        display: block;
        font-size: 13.5px;
        color: var(--color-dark-secondary);
        text-decoration: none;
        margin-bottom: 8px;
        transition: color var(--transition-fast);
        line-height: 1.6;
    }

    .footer-col a:hover {
        color: var(--color-accent);
        text-decoration: none;
    }

    .footer-bottom {
        border-top: 1px solid rgba(200, 187, 178, 0.15);
        padding-top: 20px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        font-size: 13px;
    }

    .footer-bottom a {
        color: var(--color-dark-secondary);
        text-decoration: none;
        transition: color var(--transition-fast);
    }

    .footer-bottom a:hover {
        color: var(--color-accent);
        text-decoration: none;
    }

    /* Responsive */
    @media screen and (max-width: 1024px) {
        .pricing-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .pricing-card.featured {
            grid-column: span 2;
        }
        .info-card-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media screen and (max-width: 767px) {
        .sidebar {
            display: none;
        }
        .main-content {
            margin-left: 0;
            padding-top: var(--topbar-height);
        }
        .mobile-topbar {
            display: flex;
        }
        .drawer-overlay.show {
            display: block;
        }
        .section-pad {
            padding: 40px 0;
        }
        .section-title {
            font-size: 22px;
        }
        .service-hero {
            padding: 32px 0 40px;
        }
        .service-hero h1 {
            font-size: 26px;
        }
        .service-hero .hero-subtitle {
            font-size: 14.5px;
        }
        .pricing-grid {
            grid-template-columns: 1fr;
        }
        .pricing-card.featured {
            grid-column: span 1;
        }
        .steps-bar {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .info-card-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
        .container-white {
            padding: 0 16px;
        }
        .subscription-form-wrap {
            padding: 24px 18px;
        }
        .hero-number-preview .num-block {
            width: 38px;
            height: 38px;
            font-size: 16px;
        }
        .service-cta h2 {
            font-size: 22px;
        }
    }

    @media screen and (min-width: 768px) and (max-width: 1024px) {
        .sidebar {
            width: 220px;
        }
        .main-content {
            margin-left: 220px;
        }
        :root {
            --sidebar-width: 220px;
        }
        .pricing-card .price-amount {
            font-size: 26px;
        }
    }

    @media screen and (min-width: 1025px) {
        .mobile-topbar,
        .mobile-drawer,
        .drawer-overlay {
            display: none !important;
        }
    }