/* roulang page: index */
:root {
            --primary: #0E7C6B;
            --primary-dark: #0A5F53;
            --primary-light: #E6F3F0;
            --accent: #D97706;
            --accent-light: #FEF3E2;
            --bg: #F7F5F0;
            --bg-alt: #EDF2F0;
            --text: #1F2937;
            --text-secondary: #5B6570;
            --border: #D9DEDB;
            --white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-icon: 12px;
            --shadow-sm: 0 4px 16px rgba(31, 41, 55, 0.06);
            --shadow-hover: 0 10px 28px rgba(14, 124, 107, 0.12);
            --transition: 0.25s ease;
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-en: 'Inter', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }

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

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

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(31, 41, 55, 0.08);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--white);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-menu li a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary-light);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Top Trust Bar ===== */
        .trust-bar {
            background: var(--primary);
            color: var(--white);
            padding: 8px 0;
            font-size: 13px;
            font-weight: 500;
            overflow: hidden;
        }

        .trust-bar .container {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .trust-bar span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .trust-bar .dot {
            width: 6px;
            height: 6px;
            background: #7DD3C0;
            border-radius: 50%;
            display: inline-block;
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(155deg, #EDF7F4 0%, #F7F5F0 55%, #EDF2F0 100%);
            padding: 72px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 520px;
            height: 520px;
            background: radial-gradient(circle, rgba(14, 124, 107, 0.07) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 18px;
        }

        .hero-content .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 30px;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual .hero-img-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 20px 48px rgba(14, 124, 107, 0.15);
            border: 1px solid var(--border);
            background: var(--white);
        }

        .hero-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .hero-badge-float {
            position: absolute;
            bottom: -18px;
            left: 24px;
            background: var(--white);
            border-radius: 12px;
            padding: 12px 18px;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

        .hero-badge-float .tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 6px;
            font-size: 11px;
            font-weight: 700;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: all var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white);
        }

        .btn-accent:hover {
            background: #B4630A;
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(217, 119, 6, 0.3);
        }

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

        /* ===== Sections General ===== */
        section {
            padding: var(--section-padding);
        }

        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 42px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.4px;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-white {
            background: var(--white);
        }

        /* ===== Trust Badges ===== */
        .badge-strip {
            padding: 28px 0;
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }

        .badge-strip .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .badge-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            background: var(--bg);
            border-radius: 12px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .badge-item:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .badge-item .badge-icon {
            width: 38px;
            height: 38px;
            background: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .badge-item .badge-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--primary);
        }

        .badge-item .badge-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        /* ===== Feature Entry Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: block;
            color: var(--text);
        }

        .feature-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            color: var(--text);
        }

        .feature-card .fc-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-light);
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .feature-card .fc-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--primary);
        }

        .feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Three Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .step-card {
            text-align: center;
            padding: 32px 24px;
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition);
        }

        .step-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .step-num {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin: 0 auto 16px;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

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

        /* ===== Core Features Asymmetric ===== */
        .core-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 20px;
        }

        .core-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

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

        .core-card.large {
            grid-row: span 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: linear-gradient(145deg, #F0F9F7 0%, #FFFFFF 100%);
        }

        .core-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .core-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .core-card .core-tag {
            display: inline-block;
            padding: 5px 12px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
        }

        /* ===== Free Policy ===== */
        .policy-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .policy-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .policy-card.free {
            border-top: 4px solid var(--primary);
        }

        .policy-card.vip {
            border-top: 4px solid var(--accent);
        }

        .policy-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }

        .policy-card ul {
            list-style: none;
            padding: 0;
        }

        .policy-card ul li {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid var(--bg-alt);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .policy-card ul li:last-child {
            border-bottom: none;
        }

        .policy-card ul li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
        }

        .policy-card.vip ul li::before {
            color: var(--accent);
        }

        /* ===== Scenario Grid ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: block;
            color: var(--text);
        }

        .scenario-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            color: var(--text);
        }

        .scenario-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .scenario-card .sc-body {
            padding: 20px 22px;
        }

        .scenario-card .sc-body h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .scenario-card .sc-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== News List ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .news-card img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .news-card .news-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 12px;
            color: var(--text-secondary);
        }

        .news-card .news-cat {
            display: inline-block;
            padding: 3px 8px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 6px;
            font-size: 11px;
            font-weight: 600;
        }

        .news-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.45;
            flex: 1;
        }

        .news-card h3 a {
            color: var(--text);
            transition: color var(--transition);
        }

        .news-card h3 a:hover {
            color: var(--primary);
        }

        .news-card .news-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-secondary);
            font-size: 15px;
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px dashed var(--border);
        }

        .view-more-wrap {
            text-align: center;
            margin-top: 28px;
        }

        /* ===== Comparison Table ===== */
        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            background: var(--white);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .compare-table thead th {
            background: var(--primary-light);
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            padding: 16px 18px;
            text-align: left;
        }

        .compare-table tbody td {
            padding: 14px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--bg-alt);
        }

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

        .compare-table .col-item {
            color: var(--text);
            font-weight: 500;
            white-space: nowrap;
        }

        .compare-table .check {
            color: var(--primary);
            font-weight: 700;
        }

        .compare-table .minus {
            color: #B8C0C8;
            font-weight: 400;
        }

        /* ===== Security List ===== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .security-item {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition);
        }

        .security-item:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .security-item .sec-icon {
            width: 42px;
            height: 42px;
            margin: 0 auto 12px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .security-item .sec-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--primary);
        }

        .security-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .security-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border-radius: 12px;
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: all var(--transition);
            gap: 16px;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .faq-question .faq-icon svg {
            width: 14px;
            height: 14px;
            fill: var(--primary);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-question .faq-icon svg {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            border-left: 3px solid var(--primary);
            padding-left: 14px;
        }

        /* ===== Timeline ===== */
        .timeline {
            max-width: 680px;
            margin: 0 auto;
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 6px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: var(--border);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 22px;
            padding-left: 16px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 5px;
            width: 12px;
            height: 12px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid var(--white);
            box-shadow: 0 0 0 2px var(--primary);
        }

        .timeline-item .tl-date {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 4px;
            font-weight: 500;
        }

        .timeline-item .tl-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }

        .timeline-item .tl-title a {
            color: var(--text);
        }

        .timeline-item .tl-title a:hover {
            color: var(--primary);
        }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

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

        .testimonial-card .t-stars {
            display: flex;
            gap: 3px;
            margin-bottom: 12px;
        }

        .testimonial-card .t-stars svg {
            width: 16px;
            height: 16px;
            fill: var(--accent);
        }

        .testimonial-card .t-text {
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .testimonial-card .t-author {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            color: var(--white);
            text-align: center;
            padding: 64px 0;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.4px;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 480px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-section .btn {
            background: var(--white);
            color: var(--primary);
        }

        .cta-section .btn:hover {
            background: #E6F3F0;
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1F2937;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .brand-text {
            color: var(--white);
            font-size: 20px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #E8A64C;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

            .hero-content .hero-subtitle {
                margin: 0 auto 28px;
            }

            .hero-actions {
                justify-content: center;
            }

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

            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

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

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

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                padding: 0;
            }

            .nav-container {
                height: 60px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-menu {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                height: calc(100vh - 60px);
                background: var(--white);
                flex-direction: column;
                align-items: center;
                padding: 30px 20px;
                gap: 8px;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
                z-index: 999;
                overflow-y: auto;
            }

            .nav-menu.open {
                transform: translateX(0);
            }

            .nav-menu li a {
                font-size: 17px;
                padding: 14px 20px;
                width: 100%;
                text-align: center;
            }

            .nav-menu li a.active::after {
                display: none;
            }

            .trust-bar .container {
                gap: 10px;
                font-size: 11px;
            }

            section {
                padding: var(--section-padding-mobile);
            }

            .hero-section {
                padding: 48px 0 56px;
            }

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

            .hero-content .hero-subtitle {
                font-size: 16px;
            }

            .hero-visual .hero-img-wrap {
                border-radius: 12px;
            }

            .hero-badge-float {
                bottom: -12px;
                left: 12px;
                padding: 8px 14px;
                font-size: 11px;
            }

            .badge-strip .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .badge-item {
                padding: 10px 12px;
                gap: 8px;
            }

            .badge-item .badge-icon {
                width: 30px;
                height: 30px;
            }

            .badge-item .badge-text {
                font-size: 12px;
            }

            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .feature-card {
                padding: 18px 14px;
            }

            .feature-card .fc-icon {
                width: 38px;
                height: 38px;
                margin-bottom: 10px;
            }

            .feature-card h3 {
                font-size: 15px;
            }

            .feature-card p {
                font-size: 12px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .core-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .core-card.large {
                grid-row: auto;
            }

            .policy-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .news-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .security-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .security-item {
                padding: 16px 14px;
            }

            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

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

            .cta-section h2 {
                font-size: 24px;
            }

            .cta-section p {
                font-size: 14px;
            }

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

            .section-header p {
                font-size: 14px;
            }

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

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand-text {
                font-size: 15px;
            }

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

            .badge-strip .container {
                grid-template-columns: 1fr;
            }

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

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

            .hero-actions .btn {
                width: 100%;
            }

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

            .news-card .news-body {
                padding: 14px 16px 16px;
            }

            .table-wrapper {
                border-radius: 12px;
            }

            .compare-table thead th {
                padding: 12px 14px;
                font-size: 13px;
            }

            .compare-table tbody td {
                padding: 10px 14px;
                font-size: 12px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .timeline {
                padding-left: 20px;
            }

            .timeline-item::before {
                left: -20px;
            }
        }

/* roulang page: category1 */
:root {
    --primary: #0E7C6B;
    --primary-dark: #0A5F53;
    --primary-light: #E6F3F0;
    --accent: #D97706;
    --accent-light: #FEF3E2;
    --bg: #F7F5F0;
    --bg-alt: #EDF2F0;
    --text: #1F2937;
    --text-secondary: #5B6570;
    --border: #D9DEDB;
    --white: #FFFFFF;
    --radius-card: 16px;
    --radius-btn: 10px;
    --radius-icon: 12px;
    --shadow-sm: 0 4px 16px rgba(31, 41, 55, 0.06);
    --shadow-hover: 0 10px 28px rgba(14, 124, 107, 0.12);
    --transition: 0.25s ease;
    --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    --font-en: 'Inter', system-ui, -apple-system, sans-serif;
    --max-width: 1200px;
    --section-padding: 72px 0;
    --section-padding-mobile: 48px 0;
}
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body {
    font-family: var(--font-cn);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
    background-color: var(--bg);
    min-height: 100vh;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--primary-dark);
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 3px;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button {
    font-family: var(--font-cn);
    cursor: pointer;
    border: none;
    background: none;
}
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow var(--transition);
}
.site-header.scrolled {
    box-shadow: 0 2px 16px rgba(31, 41, 55, 0.08);
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 20px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.brand-icon svg {
    width: 20px;
    height: 20px;
    fill: var(--white);
}
.brand-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.3px;
    white-space: nowrap;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-menu li a {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: all var(--transition);
    position: relative;
    white-space: nowrap;
}
.nav-menu li a:hover {
    color: var(--primary);
    background: var(--primary-light);
}
.nav-menu li a.active {
    color: var(--primary);
    font-weight: 600;
}
.nav-menu li a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--primary-light);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: background var(--transition);
}
.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
.breadcrumb-section {
    background: var(--bg-alt);
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}
.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    flex-wrap: wrap;
}
.breadcrumb-nav a {
    color: var(--text-secondary);
    transition: color var(--transition);
}
.breadcrumb-nav a:hover {
    color: var(--primary);
}
.breadcrumb-sep {
    color: var(--border);
    user-select: none;
}
.breadcrumb-current {
    color: var(--primary);
    font-weight: 500;
}
.page-head-section {
    background: linear-gradient(155deg, #EDF7F4 0%, #F7F5F0 55%, #EDF2F0 100%);
    padding: 56px 0 48px;
    position: relative;
    overflow: hidden;
}
.page-head-section::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -60px;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(14, 124, 107, 0.06) 0%, transparent 65%);
    border-radius: 50%;
    pointer-events: none;
}
.page-head-content {
    position: relative;
    z-index: 1;
    max-width: 760px;
}
.page-tag {
    display: inline-block;
    padding: 5px 14px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 14px;
}
.page-head-content h1 {
    font-size: 34px;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 16px;
}
.page-head-content .head-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0;
}
.section-subhead {
    margin-bottom: 32px;
}
.section-subhead h2 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--text);
    margin-bottom: 8px;
}
.section-subhead p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 0;
}
.feature-grid-section {
    padding: var(--section-padding);
    background: var(--bg);
}
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.feature-entry-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 28px 22px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    text-decoration: none;
    display: block;
}
.feature-entry-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.feature-entry-card .entry-icon {
    width: 52px;
    height: 52px;
    background: var(--primary-light);
    border-radius: var(--radius-icon);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
}
.feature-entry-card .entry-icon svg {
    width: 26px;
    height: 26px;
    fill: var(--primary);
}
.feature-entry-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}
.feature-entry-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}
.scenario-flow-section {
    padding: var(--section-padding);
    background: var(--bg-alt);
}
.scenario-flow-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.flow-visual img {
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-hover);
    width: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
}
.flow-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.flow-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 18px 20px;
    transition: all var(--transition);
}
.flow-step:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}
.step-num {
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 700;
    flex-shrink: 0;
}
.step-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
}
.step-body p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}
.feature-detail-section {
    padding: var(--section-padding);
    background: var(--bg);
}
.feature-detail-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 36px;
    align-items: start;
}
.feature-detail-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.feature-detail-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 18px 22px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition);
}
.feature-detail-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}
.feature-detail-item .fd-icon {
    width: 42px;
    height: 42px;
    background: var(--primary-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.feature-detail-item .fd-icon svg {
    width: 20px;
    height: 20px;
    fill: var(--primary);
}
.fd-info {
    flex: 1;
}
.fd-info h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2px;
}
.fd-info p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.5;
}
.fd-badge {
    padding: 4px 12px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}
.fd-visual {
    position: sticky;
    top: 88px;
}
.fd-visual img {
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-sm);
    width: 100%;
    object-fit: cover;
    aspect-ratio: 5 / 4;
}
.tips-section {
    padding: var(--section-padding);
    background: var(--bg-alt);
}
.tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.tip-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.tip-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}
.tip-card .tip-badge {
    display: inline-block;
    padding: 3px 10px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 10px;
}
.tip-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.45;
    margin-bottom: 8px;
}
.tip-card h3 a {
    color: var(--text);
    transition: color var(--transition);
}
.tip-card h3 a:hover {
    color: var(--primary);
}
.tip-card .tip-summary {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}
.tip-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    padding-top: 10px;
}
.tips-empty {
    background: var(--white);
    border: 1px dashed var(--border);
    border-radius: var(--radius-card);
    padding: 32px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 15px;
}
.notice-section {
    padding: var(--section-padding);
    background: var(--bg);
}
.notice-panel {
    max-width: 760px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px 36px;
    box-shadow: var(--shadow-sm);
}
.notice-panel h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
    letter-spacing: -0.2px;
}
.notice-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.notice-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}
.notice-list li .notice-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    margin-top: 9px;
    flex-shrink: 0;
}
.cta-section {
    padding: var(--section-padding);
    background: linear-gradient(155deg, var(--primary) 0%, var(--primary-dark) 100%);
}
.cta-inner {
    text-align: center;
    max-width: 620px;
    margin: 0 auto;
}
.cta-inner h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.4px;
    margin-bottom: 12px;
    line-height: 1.35;
}
.cta-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    margin-bottom: 28px;
}
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}
.btn-primary {
    background: var(--white);
    color: var(--primary);
}
.btn-primary:hover {
    background: var(--accent-light);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.5);
    margin-left: 12px;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
    border-color: var(--white);
    transform: translateY(-2px);
}
.site-footer {
    background: #1F2937;
    color: rgba(255, 255, 255, 0.8);
    padding: 56px 0 28px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 36px;
    margin-bottom: 40px;
}
.footer-brand .brand-text {
    color: var(--white);
    font-size: 18px;
    margin-bottom: 12px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 0;
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 14px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    transition: color var(--transition);
}
.footer-col ul li a:hover {
    color: var(--accent);
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 20px;
    text-align: center;
}
.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0;
}
@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .tips-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .feature-detail-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .fd-visual {
        position: static;
    }
    .scenario-flow-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }
}
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    .nav-menu {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 8px;
        box-shadow: 0 10px 28px rgba(31, 41, 55, 0.12);
        border-bottom: 1px solid var(--border);
        transform: translateY(-110%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    .nav-menu.open {
        transform: translateY(0);
    }
    .nav-menu li a {
        padding: 12px 16px;
        font-size: 16px;
    }
    .nav-menu li a.active::after {
        display: none;
    }
    .nav-menu li a.active {
        background: var(--primary-light);
    }
    .page-head-content h1 {
        font-size: 26px;
    }
    .section-subhead h2 {
        font-size: 20px;
    }
    :root {
        --section-padding: 48px 0;
    }
    .feature-grid {
        grid-template-columns: 1fr;
    }
    .tips-grid {
        grid-template-columns: 1fr;
    }
    .notice-panel {
        padding: 24px 20px;
    }
    .cta-inner h2 {
        font-size: 22px;
    }
    .btn-outline-light {
        margin-left: 0;
        margin-top: 12px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}
@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .brand-text {
        font-size: 16px;
    }
    .page-head-content h1 {
        font-size: 22px;
    }
    .flow-step {
        flex-direction: column;
        gap: 10px;
    }
    .feature-detail-item {
        flex-wrap: wrap;
        gap: 10px;
    }
    .fd-badge {
        margin-left: 52px;
    }
}

/* roulang page: article */
:root {
            --primary: #0E7C6B;
            --primary-dark: #0A5F53;
            --primary-light: #E6F3F0;
            --accent: #D97706;
            --accent-light: #FEF3E2;
            --bg: #F7F5F0;
            --bg-alt: #EDF2F0;
            --text: #1F2937;
            --text-secondary: #5B6570;
            --border: #D9DEDB;
            --white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-icon: 12px;
            --shadow-sm: 0 4px 16px rgba(31, 41, 55, 0.06);
            --shadow-hover: 0 10px 28px rgba(14, 124, 107, 0.12);
            --transition: 0.25s ease;
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-en: 'Inter', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(31, 41, 55, 0.08);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--white);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-menu li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-menu li a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary-light);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        /* ===== Top Notice Bar ===== */
        .top-notice {
            background: var(--primary);
            color: var(--white);
            font-size: 13px;
            padding: 8px 0;
            text-align: center;
            letter-spacing: 0.3px;
        }
        .top-notice a {
            color: var(--accent-light);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .top-notice a:hover {
            color: #fff;
        }
        /* ===== Breadcrumb ===== */
        .breadcrumb-section {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav .separator {
            color: #B0B8B4;
            user-select: none;
        }
        .breadcrumb-nav .current {
            color: var(--text);
            font-weight: 500;
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .breadcrumb-nav .category-chip {
            background: var(--accent-light);
            color: var(--accent);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }
        /* ===== Article Title ===== */
        .article-title-section {
            background: var(--white);
            padding: 28px 0 20px;
        }
        .article-title-section h1 {
            font-size: 32px;
            line-height: 1.35;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 14px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-dot {
            width: 4px;
            height: 4px;
            background: #B0B8B4;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .article-meta .meta-icon {
            width: 16px;
            height: 16px;
            fill: var(--primary);
            flex-shrink: 0;
        }
        /* ===== Article Content ===== */
        .article-content-section {
            background: var(--white);
            padding: 12px 0 48px;
        }
        .article-body {
            max-width: 780px;
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin: 28px 0 12px;
            padding-left: 12px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 22px 0 8px;
        }
        .article-body p {
            margin-bottom: 16px;
            padding-right: 24px;
        }
        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 16px;
        }
        .article-body ul li,
        .article-body ol li {
            margin-bottom: 6px;
        }
        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background: var(--accent-light);
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 20px 0;
            color: var(--text-secondary);
            font-size: 15px;
        }
        .article-body img {
            border-radius: var(--radius-card);
            margin: 20px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .info-box {
            background: var(--primary-light);
            border-left: 3px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 20px 0;
            font-size: 14px;
            color: var(--text-secondary);
        }
        /* ===== Article Footer Meta ===== */
        .article-footer-meta {
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 24px 0;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }
        .article-tags .tag-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 4px;
        }
        .article-tags .tag {
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            transition: all var(--transition);
        }
        .article-tags .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .article-source {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 12px;
        }
        /* ===== Prev/Next ===== */
        .prev-next-section {
            background: var(--bg);
            padding: 32px 0 16px;
        }
        .prev-next-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .prev-next-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: block;
        }
        .prev-next-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .prev-next-card .arrow-label {
            font-size: 12px;
            color: var(--text-secondary);
            letter-spacing: 0.5px;
            display: block;
            margin-bottom: 4px;
        }
        .prev-next-card .card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .prev-next-card.next-card {
            text-align: right;
        }
        /* ===== Related ===== */
        .related-section {
            background: var(--bg);
            padding: 16px 0 48px;
        }
        .related-section .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.3px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .related-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: block;
        }
        .related-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .related-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.03);
        }
        .related-card-body {
            padding: 14px 16px 16px;
        }
        .related-card-body .badge {
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 6px;
            display: inline-block;
            margin-bottom: 8px;
        }
        .related-card-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-body time {
            font-size: 12px;
            color: #A0A8A4;
        }
        /* ===== Back CTA ===== */
        .back-section {
            background: var(--bg);
            padding: 16px 0 56px;
        }
        .back-actions {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            box-shadow: 0 4px 12px rgba(14, 124, 107, 0.18);
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 124, 107, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(14, 124, 107, 0.2);
        }
        .btn-secondary {
            background: var(--white);
            color: var(--primary);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .share-placeholder {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .share-placeholder .share-icons {
            display: flex;
            gap: 6px;
        }
        .share-placeholder .share-icons button {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--white);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .share-placeholder .share-icons button:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .share-placeholder .share-icons svg {
            width: 16px;
            height: 16px;
            fill: var(--text-secondary);
        }
        .share-placeholder .share-icons button:hover svg {
            fill: var(--primary);
        }
        /* ===== Empty State ===== */
        .empty-state {
            text-align: center;
            padding: 48px 24px;
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
        }
        .empty-state .empty-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .empty-state .empty-icon svg {
            width: 22px;
            height: 22px;
            fill: var(--primary);
        }
        .empty-state h2 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .empty-state p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: #1F2937;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
        }
        .footer-brand .brand-text {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.2px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom p {
            margin: 0;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-body {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-menu {
                position: fixed;
                top: 0;
                right: -100%;
                width: 100%;
                height: 100vh;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 80px 24px 24px;
                transition: right 0.3s ease;
                z-index: 999;
                box-shadow: -4px 0 24px rgba(31, 41, 55, 0.1);
                overflow-y: auto;
            }
            .nav-menu.open {
                right: 0;
            }
            .nav-menu li a {
                padding: 14px 16px;
                font-size: 16px;
                text-align: center;
                border-radius: 10px;
            }
            .nav-menu li a.active::after {
                display: none;
            }
            .nav-menu li a.active {
                background: var(--primary-light);
            }
            .article-title-section h1 {
                font-size: 24px;
                line-height: 1.4;
            }
            .article-meta {
                gap: 10px;
                font-size: 13px;
            }
            .article-body {
                font-size: 15px;
                line-height: 1.8;
            }
            .article-body h2 {
                font-size: 19px;
            }
            .article-body h3 {
                font-size: 16px;
            }
            .article-body p {
                padding-right: 0;
            }
            .prev-next-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .prev-next-card.next-card {
                text-align: left;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .back-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .share-placeholder {
                margin-left: 0;
                justify-content: center;
            }
            .btn-primary,
            .btn-secondary {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                padding-bottom: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .breadcrumb-nav .current {
                max-width: 180px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand-text {
                font-size: 16px;
            }
            .article-title-section h1 {
                font-size: 20px;
            }
            .article-meta {
                flex-wrap: wrap;
                gap: 6px;
                font-size: 12px;
            }
            .article-body {
                font-size: 14px;
            }
            .related-card-body h3 {
                font-size: 14px;
            }
            .footer-grid {
                gap: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0E7C6B;
            --primary-dark: #0A5F53;
            --primary-light: #E6F3F0;
            --accent: #D97706;
            --accent-light: #FEF3E2;
            --bg: #F7F5F0;
            --bg-alt: #EDF2F0;
            --text: #1F2937;
            --text-secondary: #5B6570;
            --border: #D9DEDB;
            --white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-icon: 12px;
            --shadow-sm: 0 4px 16px rgba(31, 41, 55, 0.06);
            --shadow-hover: 0 10px 28px rgba(14, 124, 107, 0.12);
            --transition: 0.25s ease;
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-en: 'Inter', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(31, 41, 55, 0.08);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--white);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-menu li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-menu li a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary-light);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        /* ===== Section Base ===== */
        section {
            padding: var(--section-padding);
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 720px;
        }
        .text-accent {
            color: var(--accent);
        }
        /* ===== Category Hero ===== */
        .category-hero {
            background: linear-gradient(155deg, #EDF7F4 0%, #F7F5F0 60%, #EDF2F0 100%);
            padding: 40px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -60px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(14, 124, 107, 0.07) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--border);
        }
        .category-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .category-hero-content h1 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .category-hero-content p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .category-hero-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            background: var(--white);
        }
        .category-hero-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        /* ===== Card Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: left;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .feature-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-icon);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .feature-card-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--primary);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        /* ===== Privacy Layout ===== */
        .privacy-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .privacy-content {
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }
        .privacy-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .privacy-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .privacy-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.7;
        }
        .privacy-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }
        .privacy-image img {
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        /* ===== Help Grid ===== */
        .help-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .help-card {
            display: block;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-decoration: none;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            color: var(--text);
        }
        .help-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            color: var(--text);
        }
        .help-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .help-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        .help-card .help-arrow {
            display: inline-block;
            margin-top: 12px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.active {
            border-left: 3px solid var(--primary);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            position: relative;
            transition: transform var(--transition);
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 11px;
            left: 5px;
        }
        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 5px;
            left: 11px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        /* ===== Feedback ===== */
        .feedback-card {
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 36px;
            box-shadow: var(--shadow-sm);
            max-width: 800px;
            margin: 0 auto;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            font-size: 15px;
            font-family: var(--font-cn);
            color: var(--text);
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(14, 124, 107, 0.08);
            outline: none;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-cn);
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 16px rgba(14, 124, 107, 0.25);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: var(--white);
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 64px 0;
        }
        .cta-card {
            text-align: center;
            color: var(--white);
        }
        .cta-card h2 {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-card p {
            font-size: 16px;
            opacity: 0.9;
            margin-bottom: 28px;
        }
        .cta-card .btn-primary {
            background: var(--accent);
            color: #1F2937;
            font-weight: 700;
        }
        .cta-card .btn-primary:hover {
            background: #B26105;
            color: #fff;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: #1F2937;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .brand-text {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            display: block;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-bottom p {
            margin: 0;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .help-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .privacy-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(255, 255, 255, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 8px;
                transform: translateX(-100%);
                transition: transform 0.3s ease;
                z-index: 999;
                overflow-y: auto;
            }
            .nav-menu.open {
                transform: translateX(0);
            }
            .nav-menu li a {
                width: 100%;
                font-size: 17px;
                padding: 12px 16px;
            }
            .nav-menu li a.active::after {
                left: 16px;
                right: 16px;
                height: 2px;
                bottom: 0;
            }
            .nav-toggle {
                display: flex;
            }
            section {
                padding: var(--section-padding-mobile);
            }
            .category-hero {
                padding: 32px 0 40px;
            }
            .category-hero-content h1 {
                font-size: 28px;
            }
            .category-hero-content p {
                font-size: 15px;
            }
            .section-title {
                font-size: 24px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .help-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .feedback-card {
                padding: 24px;
            }
            .cta-card h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 16px;
            }
            .category-hero-image img {
                height: 200px;
            }
            .btn {
                width: 100%;
                display: block;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0E7C6B;
            --primary-dark: #0A5F53;
            --primary-light: #E6F3F0;
            --accent: #D97706;
            --accent-light: #FEF3E2;
            --bg: #F7F5F0;
            --bg-alt: #EDF2F0;
            --text: #1F2937;
            --text-secondary: #5B6570;
            --border: #D9DEDB;
            --white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-icon: 12px;
            --shadow-sm: 0 4px 16px rgba(31, 41, 55, 0.06);
            --shadow-hover: 0 10px 28px rgba(14, 124, 107, 0.12);
            --transition: 0.25s ease;
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-en: 'Inter', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 48px 0;
        }

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

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(31, 41, 55, 0.08);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--white);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-menu li a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary-light);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-nav {
            padding: 20px 0 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-list li:not(:last-child)::after {
            content: '/';
            color: var(--border);
            margin-left: 4px;
        }

        .breadcrumb-list a {
            color: var(--primary);
        }

        .breadcrumb-list .current {
            color: var(--text-secondary);
        }

        /* ===== Page Header ===== */
        .page-header-section {
            background: linear-gradient(135deg, #EDF7F4 0%, #F7F5F0 55%, #EDF2F0 100%);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }

        .page-header-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(14, 124, 107, 0.08) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-header-inner {
            position: relative;
            z-index: 1;
            max-width: 760px;
        }

        .page-header-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        .page-header-inner h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.5px;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 12px;
        }

        .page-header-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* ===== Sections ===== */
        .section-block {
            padding: var(--section-padding);
        }

        .section-block.bg-white {
            background: var(--white);
        }

        .section-block.bg-alt {
            background: var(--bg-alt);
        }

        .section-block.bg-default {
            background: var(--bg);
        }

        .section-label {
            display: inline-block;
            padding: 4px 12px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            border-radius: 6px;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 680px;
            line-height: 1.8;
        }

        /* ===== Version Comparison Table ===== */
        .table-responsive-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            background: var(--white);
            border: 1px solid var(--border);
        }

        .version-table {
            width: 100%;
            min-width: 680px;
            border-collapse: collapse;
            font-size: 15px;
        }

        .version-table th,
        .version-table td {
            padding: 14px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }

        .version-table thead th {
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 15px;
            white-space: nowrap;
        }

        .version-table thead th:first-child {
            border-radius: 12px 0 0 0;
        }

        .version-table thead th:last-child {
            border-radius: 0 12px 0 0;
        }

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

        .version-table tbody tr:hover {
            background: #F9FBF9;
        }

        .table-check {
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
        }

        .table-dash {
            color: var(--border);
            font-weight: 400;
        }

        .table-label-col {
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
        }

        .version-highlight-col {
            background: rgba(14, 124, 107, 0.03);
        }

        .version-table .feature-header {
            font-weight: 700;
            color: var(--primary-dark);
        }

        /* ===== Benefit Cards ===== */
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .benefit-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .benefit-card-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-light);
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .benefit-card-icon svg {
            width: 22px;
            height: 22px;
            fill: var(--primary);
        }

        .benefit-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin: 0;
        }

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

        /* ===== Account Sync Section ===== */
        .sync-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .sync-image-wrapper {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .sync-image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .sync-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .sync-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text);
        }

        .sync-list li::before {
            content: '';
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            margin-top: 8px;
        }

        /* ===== Free Policy ===== */
        .policy-block {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 32px;
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .policy-block h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
        }

        .policy-block ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .policy-block ul li {
            font-size: 15px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .policy-block ul li::before {
            content: '✓';
            flex-shrink: 0;
            color: var(--primary);
            font-weight: 700;
        }

        /* ===== Timeline ===== */
        .timeline-list {
            list-style: none;
            margin: 0;
            padding: 0;
            position: relative;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-left: 36px;
            margin-bottom: 24px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            width: 16px;
            height: 16px;
            background: var(--white);
            border: 3px solid var(--primary);
            border-radius: 50%;
            z-index: 1;
            transition: background var(--transition);
        }

        .timeline-item:hover::before {
            background: var(--primary-light);
        }

        .timeline-item-date {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 4px;
        }

        .timeline-item-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .timeline-item-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== Latest Posts ===== */
        .latest-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-alt);
        }

        .news-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .news-card-tag {
            display: inline-block;
            padding: 2px 10px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            border-radius: 6px;
            align-self: flex-start;
        }

        .news-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin: 0;
        }

        .news-card-title a {
            color: var(--text);
        }

        .news-card-title a:hover {
            color: var(--primary);
        }

        .news-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        .news-card-meta {
            font-size: 12px;
            color: var(--text-secondary);
            border-top: 1px solid var(--border);
            padding-top: 10px;
            display: flex;
            justify-content: space-between;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition);
        }

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

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 16px 20px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            background: var(--white);
            transition: background var(--transition);
            border-radius: 12px;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition);
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            margin-left: 4px;
            border-left: 3px solid var(--primary);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #0E7C6B 0%, #0A5F53 100%);
            padding: 56px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            background: var(--white);
            color: var(--primary);
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            background: var(--accent-light);
            color: var(--accent);
        }

        .btn-secondary {
            display: inline-block;
            padding: 12px 24px;
            background: transparent;
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-outline-light {
            display: inline-block;
            padding: 12px 28px;
            background: transparent;
            color: var(--white);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            color: var(--white);
            border-color: var(--white);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1F2937;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .brand-text {
            color: var(--white);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .benefit-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 20px 24px;
                transform: translateX(-100%);
                transition: transform var(--transition);
                z-index: 999;
                height: calc(100vh - 68px);
                overflow-y: auto;
                box-shadow: 0 8px 28px rgba(31, 41, 55, 0.1);
            }

            .nav-menu.open {
                transform: translateX(0);
            }

            .nav-menu li {
                width: 100%;
            }

            .nav-menu li a {
                padding: 14px 12px;
                font-size: 16px;
                border-radius: 8px;
                width: 100%;
            }

            .nav-menu li a.active::after {
                display: none;
            }

            .nav-menu li a.active {
                background: var(--primary-light);
            }

            .nav-toggle {
                display: flex;
            }

            .page-header-inner h1 {
                font-size: 26px;
            }

            .section-block {
                padding: var(--section-padding-mobile);
            }

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

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

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

            .policy-block {
                padding: 24px 20px;
            }

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

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand-text {
                font-size: 16px;
            }

            .page-header-inner h1 {
                font-size: 22px;
            }

            .section-title {
                font-size: 20px;
            }

            .version-table th,
            .version-table td {
                padding: 10px 14px;
                font-size: 13px;
            }

            .benefit-card {
                padding: 20px 16px;
            }

            .faq-question {
                padding: 12px 16px;
                font-size: 14px;
            }

            .faq-answer-inner {
                padding: 0 16px 14px;
                margin-left: 3px;
                font-size: 13px;
            }

            .cta-section {
                padding: 40px 0;
            }

            .cta-section h2 {
                font-size: 20px;
            }
        }