/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-light: #8b7cf7;
            --primary-dark: #5847c8;
            --accent: #ff9f43;
            --accent-dark: #f08a2e;
            --accent-light: #fff2e5;
            --ink: #10111a;
            --ink-soft: #292d3e;
            --muted: #6e738a;
            --line: #e8e9f0;
            --white: #ffffff;
            --bg-body: #f5f6fa;
            --bg-dark: #10111a;
            --bg-dark-2: #1b1f38;
            --bg-panel: #f0f1f6;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(16, 17, 26, 0.06);
            --shadow-md: 0 8px 28px rgba(16, 17, 26, 0.09);
            --shadow-lg: 0 18px 48px rgba(16, 17, 26, 0.16);
            --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
                'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset / 基础 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-main);
            background: var(--bg-body);
            color: var(--ink);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            font-weight: 700;
        }
        p {
            line-height: 1.75;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.2;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--ink);
            box-shadow: 0 6px 20px rgba(255, 159, 67, 0.35);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 159, 67, 0.45);
            color: var(--white);
        }
        .btn-glass {
            background: rgba(255, 255, 255, 0.14);
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(8px);
        }
        .btn-glass:hover {
            background: rgba(255, 255, 255, 0.24);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 15px 38px;
            font-size: 16px;
        }
        .btn:focus,
        .btn:active {
            outline: 3px solid rgba(108, 92, 231, 0.35);
            outline-offset: 2px;
            transform: scale(0.98);
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(16, 17, 26, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }
        .site-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.4);
        }
        .logo-name {
            color: var(--white);
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-accent {
            color: var(--accent);
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 999px;
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
        }
        .nav-link i {
            font-size: 12px;
            transition: transform 0.3s;
        }
        .nav-item:hover .nav-link,
        .nav-item.active .nav-link {
            color: var(--white);
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-item:hover .nav-link i {
            transform: rotate(180deg);
        }
        .nav-item.active .nav-link {
            color: var(--accent);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--white);
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
        }
        .menu-toggle:focus {
            outline: 2px solid var(--accent);
        }

        /* Mega 下拉 */
        .mega-panel {
            position: absolute;
            top: calc(100% + 14px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            min-width: 480px;
            background: var(--bg-dark-2);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-lg);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 200;
        }
        .nav-item.has-mega:hover .mega-panel,
        .nav-item.has-mega:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .mega-title {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mega-list li {
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mega-list a {
            color: rgba(255, 255, 255, 0.78);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .mega-list a:hover {
            color: var(--accent);
        }
        .mega-list i {
            width: 20px;
            color: var(--primary-light);
            text-align: center;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 660px;
            display: flex;
            align-items: center;
            padding: 100px 0 80px;
            isolation: isolate;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(15, 16, 26, 0.94) 0%,
                    rgba(15, 16, 26, 0.78) 45%,
                    rgba(108, 92, 231, 0.35) 100%);
            z-index: -1;
        }
        .hero-container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 720px;
            padding: 20px 0;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 159, 67, 0.18);
            border: 1px solid rgba(255, 159, 67, 0.4);
            color: var(--accent);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: clamp(36px, 5.5vw, 64px);
            font-weight: 900;
            color: var(--white);
            line-height: 1.1;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-desc {
            font-size: clamp(16px, 1.6vw, 19px);
            color: rgba(255, 255, 255, 0.78);
            max-width: 600px;
            margin-bottom: 34px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }
        .hero-stats {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-num {
            font-size: 34px;
            font-weight: 900;
            color: var(--white);
            line-height: 1.1;
            background: linear-gradient(135deg, var(--accent) 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
        }

        /* ===== Section 通用 ===== */
        .section {
            padding: 100px 0;
        }
        .section-head {
            margin-bottom: 52px;
        }
        .section-head.center {
            text-align: center;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
            background: rgba(108, 92, 231, 0.1);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--muted);
            max-width: 560px;
        }
        .section-head.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 特色卡片 ===== */
        .features-section {
            background: var(--white);
        }
        .feature-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            height: 100%;
            border: 1px solid transparent;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--primary-light);
            opacity: 0.08;
            transition: var(--transition);
        }
        .feature-card:hover {
            border-color: var(--line);
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            background: var(--white);
        }
        .feature-card:hover::after {
            transform: scale(3.5);
            opacity: 0.05;
        }
        .feature-icon {
            width: 62px;
            height: 62px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 24px;
            margin-bottom: 20px;
            box-shadow: 0 8px 20px rgba(108, 92, 231, 0.32);
        }
        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--ink);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ===== 分类卡片 ===== */
        .category-section {
            background: var(--bg-body);
        }
        .category-card {
            display: flex;
            background: var(--white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--line);
            height: 100%;
            position: relative;
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: rgba(108, 92, 231, 0.3);
        }
        .category-img-wrap {
            position: relative;
            width: 42%;
            min-height: 320px;
            flex-shrink: 0;
            overflow: hidden;
        }
        .category-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover .category-img-wrap img {
            transform: scale(1.04);
        }
        .category-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(16, 17, 26, 0.35) 100%);
        }
        .category-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 159, 67, 0.92);
            color: var(--ink);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 999px;
            z-index: 2;
        }
        .category-body {
            padding: 34px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }
        .category-body h3 {
            font-size: 26px;
            margin-bottom: 12px;
            color: var(--ink);
        }
        .category-body p {
            font-size: 15px;
            color: var(--muted);
            margin-bottom: 24px;
            flex: 1;
        }
        .category-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .category-link i {
            transition: transform 0.3s;
        }
        .category-card:hover .category-link i {
            transform: translateX(6px);
        }

        /* ===== 资讯列表 ===== */
        .news-section {
            background: var(--white);
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: rgba(108, 92, 231, 0.25);
        }
        .news-media {
            position: relative;
            display: block;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .news-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-media img {
            transform: scale(1.05);
        }
        .news-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.4);
        }
        .news-body {
            padding: 22px 22px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-body h3 {
            font-size: 17px;
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .news-body h3 a {
            color: var(--ink);
        }
        .news-body h3 a:hover {
            color: var(--primary);
        }
        .news-summary {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--line);
            padding-top: 14px;
        }
        .news-date {
            font-size: 13px;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-more {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-more i {
            transition: transform 0.3s;
        }
        .news-card:hover .news-more i {
            transform: translateX(4px);
        }
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--line);
            color: var(--muted);
        }
        .empty-state i {
            font-size: 40px;
            margin-bottom: 16px;
            color: var(--line);
            display: block;
        }
        .empty-state p {
            font-size: 15px;
        }

        /* ===== 统计区 ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            isolation: isolate;
        }
        .stats-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 70px 60px;
        }
        .stats-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 17, 26, 0.92) 0%, rgba(108, 92, 231, 0.35) 100%);
        }
        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        .stat-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.16);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            margin-bottom: 16px;
        }
        .stat-num {
            font-size: 38px;
            font-weight: 900;
            color: var(--white);
            display: block;
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== 流程步骤 ===== */
        .steps-section {
            background: var(--bg-body);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .step-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 34px 26px;
            border: 1px solid var(--line);
            position: relative;
            transition: var(--transition);
            text-align: center;
        }
        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: rgba(108, 92, 231, 0.3);
        }
        .step-num {
            position: absolute;
            top: 18px;
            right: 22px;
            font-size: 42px;
            font-weight: 900;
            color: rgba(108, 92, 231, 0.12);
            line-height: 1;
        }
        .step-icon {
            width: 68px;
            height: 68px;
            margin: 0 auto 20px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 26px;
            box-shadow: 0 10px 26px rgba(108, 92, 231, 0.3);
        }
        .step-card h3 {
            font-size: 19px;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--muted);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--white);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            border: 1px solid var(--line);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(108, 92, 231, 0.3);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 26px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--ink);
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s;
        }
        .faq-item[open] summary {
            color: var(--primary);
        }
        .faq-item[open] summary i {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 26px 22px;
            border-top: 1px solid var(--line);
            padding-top: 16px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-body);
            padding-bottom: 100px;
        }
        .cta-box {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 90px 60px;
            text-align: center;
            isolation: isolate;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 17, 26, 0.9) 0%, rgba(30, 25, 70, 0.75) 100%);
            z-index: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 620px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(28px, 4vw, 40px);
            color: var(--white);
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 30px;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.68);
            padding: 80px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 30px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }
        .footer-logo .logo-icon {
            width: 38px;
            height: 38px;
            font-size: 16px;
        }
        .footer-logo .logo-name {
            font-size: 19px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.56);
            max-width: 340px;
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 18px;
            font-weight: 700;
        }
        .footer-col ul li {
            margin-bottom: 12px;
            font-size: 14px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.58);
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-col ul i {
            margin-right: 8px;
            color: var(--primary-light);
            width: 16px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-links a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 80px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .category-img-wrap {
                width: 38%;
            }
            .category-body {
                padding: 28px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
            .mega-panel {
                left: auto;
                right: 0;
                transform: translateY(8px);
                min-width: 420px;
            }
            .nav-item.has-mega:hover .mega-panel {
                transform: translateY(0);
            }
        }
        @media (max-width: 768px) {
            .nav-container {
                min-height: 64px;
            }
            .site-logo .logo-name {
                font-size: 17px;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(16, 17, 26, 0.98);
                padding: 24px 20px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: var(--shadow-lg);
                display: block;
            }
            .main-nav.open {
                max-height: 420px;
                overflow-y: auto;
            }
            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-link {
                display: flex;
                justify-content: space-between;
                padding: 14px 12px;
                border-radius: var(--radius-md);
                color: rgba(255, 255, 255, 0.85);
            }
            .mega-panel {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                min-width: 0;
                background: rgba(255, 255, 255, 0.05);
                box-shadow: none;
                margin-top: 6px;
                padding: 16px;
                display: none;
            }
            .nav-item.has-mega.open-panel .mega-panel {
                display: block;
            }
            .mega-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .mega-title {
                margin-bottom: 8px;
                font-size: 12px;
            }
            .mega-list li {
                margin-bottom: 8px;
            }
            .menu-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-actions .btn {
                display: none;
            }
            .hero {
                min-height: 540px;
                padding: 70px 0 60px;
            }
            .hero-stats {
                gap: 30px;
            }
            .hero-stat-num {
                font-size: 28px;
            }
            .section {
                padding: 60px 0;
            }
            .category-card {
                flex-direction: column;
            }
            .category-img-wrap {
                width: 100%;
                min-height: 220px;
                aspect-ratio: 16/9;
            }
            .category-body {
                padding: 24px 22px;
            }
            .category-body h3 {
                font-size: 22px;
            }
            .stats-wrap {
                padding: 50px 30px;
            }
            .step-card {
                padding: 28px 20px;
            }
            .cta-box {
                padding: 60px 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-actions .btn {
                flex: 1 1 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat-num {
                font-size: 24px;
            }
            .features-grid,
            .steps-grid,
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .category-body h3 {
                font-size: 20px;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .footer-bottom {
                font-size: 12px;
            }
            .stats-wrap {
                padding: 40px 20px;
            }
            .cta-actions .btn {
                flex: 1 1 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a2b4a;
            --primary-light: #2a4470;
            --primary-deep: #101d33;
            --accent: #f0b90b;
            --accent-dark: #d4a000;
            --accent-light: #fff4d6;
            --bg: #f5f7fa;
            --bg-deep: #e9edf3;
            --card: #ffffff;
            --text: #1d2b3a;
            --text-weak: #7a8a9a;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(0, 0, 0, .06);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, .10);
            --transition: all .25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-deep);
            box-shadow: 0 6px 18px rgba(240, 185, 11, .35);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(240, 185, 11, .4);
        }
        .btn-outline {
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-ghost {
            border-color: var(--border);
            color: var(--primary);
            background: var(--card);
        }
        .btn-ghost:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .section {
            padding: 72px 0;
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            letter-spacing: .5px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--primary-deep);
            letter-spacing: .5px;
        }
        .section-sub {
            color: var(--text-weak);
            font-size: 16px;
            max-width: 640px;
            margin: 12px auto 0;
        }

        .site-header {
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, .8);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, .04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            box-shadow: 0 4px 12px rgba(26, 43, 74, .25);
        }
        .logo-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-deep);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-accent {
            color: var(--accent-dark);
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            border-radius: 50px;
            transition: var(--transition);
        }
        .nav-link i {
            font-size: 12px;
            color: var(--text-weak);
            transition: var(--transition);
        }
        .nav-item:hover .nav-link,
        .nav-item.active .nav-link {
            color: var(--primary);
            background: rgba(26, 43, 74, .06);
        }
        .nav-item:hover .nav-link i {
            transform: rotate(180deg);
            color: var(--accent-dark);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            min-width: 560px;
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 100;
        }
        .nav-item.has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .mega-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--accent-light);
        }
        .mega-list li {
            margin-bottom: 10px;
        }
        .mega-list a,
        .mega-list span {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text);
            padding: 6px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mega-list a:hover {
            background: var(--bg);
            color: var(--accent-dark);
            padding-left: 12px;
        }
        .mega-list i {
            width: 18px;
            text-align: center;
            color: var(--primary-light);
        }
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--bg);
            color: var(--primary);
            font-size: 20px;
            align-items: center;
            justify-content: center;
        }

        .reading-progress {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            width: 100%;
            background: transparent;
            z-index: 2000;
            pointer-events: none;
        }
        .reading-progress span {
            display: block;
            height: 100%;
            width: 0;
            background: linear-gradient(90deg, var(--accent), #ff6b35);
            border-radius: 0 3px 3px 0;
            transition: width .08s linear;
        }

        .page-banner {
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            position: relative;
            color: #fff;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 29, 51, .92), rgba(26, 43, 74, .78));
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb i {
            font-size: 12px;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .banner-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            max-width: 760px;
        }
        .banner-desc {
            margin-top: 12px;
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            max-width: 600px;
        }

        .article-section {
            padding: 56px 0 72px;
        }
        .article-grid {
            gap: 28px;
        }
        .article-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .article-main {
            padding: 40px 44px 48px;
        }
        .article-main .article-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.4;
            color: var(--primary-deep);
            margin-bottom: 18px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            padding-bottom: 20px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--border);
        }
        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-weak);
        }
        .article-meta-item i {
            color: var(--accent-dark);
        }
        .article-meta-item a:hover {
            color: var(--accent-dark);
        }
        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #2d3b4e;
        }
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: var(--primary-deep);
            margin: 28px 0 14px;
            line-height: 1.4;
        }
        .article-content h2 {
            font-size: 24px;
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }
        .article-content h3 {
            font-size: 20px;
        }
        .article-content p {
            margin-bottom: 16px;
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 20px 0;
        }
        .article-content ul,
        .article-content ol {
            margin: 16px 0 20px;
            padding-left: 22px;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            background: var(--accent-light);
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            color: var(--primary);
            font-style: normal;
        }
        .article-content a {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .tag:hover {
            background: var(--accent-light);
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }
        .sidebar-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 26px;
        }
        .sidebar-card .side-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card .side-title i {
            color: var(--accent-dark);
        }
        .side-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            transition: var(--transition);
        }
        .side-list li:last-child {
            border-bottom: none;
        }
        .side-list a {
            font-size: 14px;
            color: var(--text);
            line-height: 1.5;
            flex: 1;
        }
        .side-list a:hover {
            color: var(--accent-dark);
            padding-left: 4px;
        }
        .side-list i {
            color: var(--accent);
            font-size: 13px;
            margin-top: 4px;
        }
        .side-hot {
            background: linear-gradient(160deg, var(--primary-deep), var(--primary));
            color: #fff;
        }
        .side-hot .side-title {
            color: #fff;
            border-color: rgba(255, 255, 255, .15);
        }
        .hot-rank-list {
            counter-reset: rank;
        }
        .hot-rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .hot-rank-item:last-child {
            border-bottom: none;
        }
        .rank-num {
            font-size: 18px;
            font-weight: 800;
            font-style: italic;
            color: var(--accent);
            min-width: 28px;
        }
        .rank-info {
            flex: 1;
        }
        .rank-info h4 {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.45;
            color: rgba(255, 255, 255, .95);
            margin-bottom: 4px;
        }
        .rank-info h4:hover {
            color: var(--accent);
        }
        .hot-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            color: var(--accent);
            background: rgba(240, 185, 11, .12);
            padding: 2px 10px;
            border-radius: 50px;
        }
        .side-cta {
            background: linear-gradient(135deg, var(--accent-light), #ffe8b3);
            border: 1px solid rgba(240, 185, 11, .25);
        }
        .side-cta p {
            font-size: 14px;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .not-found {
            text-align: center;
            padding: 70px 30px;
        }
        .not-found-icon {
            display: inline-flex;
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-weak);
            font-size: 30px;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .not-found h1 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary-deep);
            margin-bottom: 12px;
        }
        .not-found p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        .related-section {
            background: var(--bg);
        }
        .related-grid {
            gap: 24px;
            justify-content: center;
        }
        .related-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .related-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover .related-cover img {
            transform: scale(1.04);
        }
        .related-cover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 45%;
            background: linear-gradient(to top, rgba(16, 29, 51, .5), transparent);
            opacity: .6;
        }
        .related-body {
            padding: 22px 24px 26px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .related-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--primary-deep);
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .related-card:hover .related-body h3 {
            color: var(--accent-dark);
        }
        .related-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .related-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
        }
        .related-cat {
            background: var(--accent-light);
            color: var(--accent-dark);
            padding: 3px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 12px;
        }

        .faq-section {
            background: var(--card);
        }
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            background: var(--card);
            transition: var(--transition);
            overflow: hidden;
        }
        .faq-item.open {
            border-color: var(--accent);
            box-shadow: 0 8px 30px rgba(240, 185, 11, .08);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-deep);
            cursor: pointer;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--accent-dark);
        }
        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 14px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px dashed var(--border);
            padding-top: 16px;
        }

        .cta-section {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
            padding: 90px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(16, 29, 51, .82);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--primary-deep);
            color: rgba(255, 255, 255, .75);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-logo .logo-icon {
            background: rgba(255, 255, 255, .1);
            color: var(--accent);
        }
        .footer-logo .logo-name {
            color: #fff;
            font-size: 19px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, .6);
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col ul li i {
            margin-right: 6px;
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-links span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        @media screen and (max-width: 1024px) {
            .article-main {
                padding: 30px 28px 36px;
            }
            .banner-title {
                font-size: 30px;
            }
            .cta-title {
                font-size: 30px;
            }
            .section-title {
                font-size: 28px;
            }
        }
        @media screen and (max-width: 768px) {
            .header-inner {
                height: 62px;
            }
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                background: var(--card);
                box-shadow: 0 12px 30px rgba(0, 0, 0, .1);
                padding: 16px 24px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border);
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-link {
                padding: 14px 16px;
                border-radius: 12px;
            }
            .mega-panel {
                position: static;
                transform: none;
                min-width: 0;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 0 0 8px;
                opacity: 1;
                visibility: visible;
                display: none;
                margin: 0;
                background: transparent;
            }
            .nav-item.has-mega.open .mega-panel {
                display: block;
            }
            .nav-item.has-mega:hover .mega-panel {
                transform: none;
            }
            .mega-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .mega-title {
                margin-bottom: 8px;
            }
            .page-banner {
                padding: 48px 0 42px;
            }
            .banner-title {
                font-size: 26px;
            }
            .banner-desc {
                font-size: 14px;
            }
            .article-main {
                padding: 24px 18px 28px;
            }
            .article-main .article-title {
                font-size: 24px;
            }
            .article-grid {
                gap: 20px;
            }
            .sidebar-card {
                padding: 20px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .cta-section {
                padding: 60px 0;
                background-attachment: scroll;
            }
            .cta-title {
                font-size: 26px;
            }
        }
        @media screen and (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo-name {
                font-size: 17px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
            .article-meta {
                gap: 10px;
            }
            .article-meta-item {
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links span {
                font-size: 12px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .cta-buttons .btn {
                width: 100%;
                max-width: 280px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #4f8cff;
            --accent: #f59e0b;
            --accent-warm: #f97316;
            --danger: #ef4444;
            --green: #10b981;
            --bg: #f4f7fc;
            --card-bg: #ffffff;
            --text: #111827;
            --muted: #6b7280;
            --border: #e5e7eb;
            --radius: 14px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, .06);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, .12);
            --space: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        ul {
            list-style: none;
        }

        button, input {
            font-family: inherit;
        }

        .row {
            max-width: 1200px;
        }

        .column, .columns {
            padding-left: 16px;
            padding-right: 16px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            line-height: 1.4;
            border: none;
            cursor: pointer;
            transition: all .25s ease;
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 14px;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 15px 32px;
            font-size: 16px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 6px 18px rgba(37, 99, 235, .25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(37, 99, 235, .35);
            color: #fff;
        }

        .btn-ghost {
            background: rgba(255, 255, 255, .1);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .35);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .2);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .18);
        }

        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 800;
            background: rgba(37, 99, 235, .1);
            color: var(--primary);
            line-height: 1.5;
        }

        .badge-hot {
            background: rgba(239, 68, 68, .12);
            color: var(--danger);
        }

        .badge-new {
            background: rgba(16, 185, 129, .12);
            color: var(--green);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 74px;
            gap: 20px;
            position: relative;
        }

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

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(37, 99, 235, .25);
        }

        .logo-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: .5px;
        }

        .logo-accent {
            color: var(--primary);
        }

        .main-nav {
            margin-left: auto;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            transition: background .2s ease, color .2s ease;
        }

        .nav-link i {
            font-size: 12px;
            transition: transform .2s ease;
        }

        .nav-link:hover {
            background: var(--bg);
            color: var(--primary);
        }

        .nav-item.active > .nav-link {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(37, 99, 235, .25);
        }

        .nav-item.active > .nav-link i {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%);
            width: 540px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow-lg);
            padding: 26px;
            opacity: 0;
            visibility: hidden;
            transition: opacity .25s ease, visibility .25s ease, transform .25s ease;
            z-index: 50;
        }

        .has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(4px);
        }

        .mega-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .mega-title {
            font-size: 14px;
            font-weight: 800;
            color: var(--muted);
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }

        .mega-list li {
            margin-bottom: 4px;
        }

        .mega-list li a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 0;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
        }

        .mega-list li a i {
            width: 20px;
            text-align: center;
            color: var(--primary);
        }

        .mega-list li a:hover {
            color: var(--primary);
        }

        .mega-list li i {
            width: 20px;
            text-align: center;
            color: var(--primary);
            font-style: normal;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 12px;
            font-size: 18px;
            color: var(--text);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all .2s ease;
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .page-hero {
            position: relative;
            padding: 96px 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(6, 16, 38, .94), rgba(6, 16, 38, .72), rgba(6, 16, 38, .55));
        }

        .hero-inner {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 8px 18px;
            border-radius: 30px;
            margin-bottom: 22px;
            backdrop-filter: blur(6px);
        }

        .hero-badge i {
            color: var(--accent);
        }

        .page-hero h1 {
            color: #fff;
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .page-hero h1 .text-accent {
            color: #ffb703;
        }

        .hero-lead {
            color: rgba(255, 255, 255, .85);
            font-size: 18px;
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 32px;
        }

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

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, .2);
        }

        .stat-item strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
        }

        .stat-item span {
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
        }

        .hero-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 24px 60px rgba(0, 0, 0, .4);
            border: 1px solid rgba(255, 255, 255, .2);
        }

        .hero-card img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }

        .hero-card-meta {
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 16px;
            background: rgba(6, 16, 38, .72);
            backdrop-filter: blur(8px);
            border-radius: 14px;
            color: #fff;
            font-size: 13px;
        }

        .section {
            padding: var(--space) 0;
        }

        .section-alt {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            max-width: 700px;
            margin: 0 auto 52px;
            text-align: center;
        }

        .section-head.left {
            margin-left: 0;
            text-align: left;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(37, 99, 235, .1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 800;
            padding: 6px 16px;
            border-radius: 24px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text);
        }

        .section-head p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .step-col {
            margin-bottom: 24px;
        }

        .step-card {
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .step-num {
            position: absolute;
            top: 18px;
            right: 22px;
            font-size: 54px;
            font-weight: 900;
            color: var(--primary);
            opacity: .12;
            line-height: 1;
            z-index: 0;
        }

        .step-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 20px;
            margin-bottom: 20px;
            box-shadow: 0 6px 16px rgba(37, 99, 235, .25);
            position: relative;
            z-index: 1;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--text);
            position: relative;
            z-index: 1;
        }

        .step-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin: 0;
            position: relative;
            z-index: 1;
        }

        .feature-col {
            margin-bottom: 28px;
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform .25s ease, box-shadow .25s ease;
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .feature-media {
            position: relative;
            height: 150px;
            overflow: hidden;
            background: var(--bg);
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-tag {
            position: absolute;
            top: 14px;
            right: 14px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, var(--danger), var(--accent-warm));
            box-shadow: 0 4px 12px rgba(239, 68, 68, .35);
        }

        .feature-body {
            padding: 24px 26px;
        }

        .feature-body h3 {
            font-size: 17px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 10px;
        }

        .feature-body h3 i {
            color: var(--primary);
            margin-right: 6px;
        }

        .feature-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin: 0;
        }

        .security-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .security-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .security-callout {
            position: absolute;
            left: 16px;
            bottom: 16px;
            display: flex;
            align-items: center;
            gap: 14px;
            background: rgba(255, 255, 255, .96);
            border-radius: 16px;
            padding: 14px 20px;
            box-shadow: var(--shadow);
        }

        .security-callout i {
            font-size: 28px;
            color: var(--primary);
        }

        .security-callout strong {
            display: block;
            font-size: 15px;
            color: var(--text);
            line-height: 1.4;
        }

        .security-callout span {
            font-size: 13px;
            color: var(--muted);
        }

        .progress-list {
            margin: 28px 0 32px;
        }

        .progress-item {
            margin-bottom: 28px;
        }

        .progress-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }

        .progress-head strong {
            color: var(--primary);
            font-size: 18px;
            font-weight: 800;
        }

        .progress-track {
            height: 10px;
            border-radius: 20px;
            background: var(--bg);
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            border-radius: 20px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            width: 0;
        }

        .progress-fill.fill-accent {
            background: linear-gradient(90deg, var(--accent), #ffb703);
        }

        .progress-fill.fill-green {
            background: linear-gradient(90deg, var(--green), #34d399);
        }

        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            max-width: 880px;
            margin: 0 auto;
        }

        .schedule-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 22px 26px;
            box-shadow: var(--shadow);
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .schedule-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(37, 99, 235, .3);
        }

        .schedule-day {
            flex: 0 0 80px;
            text-align: center;
            background: var(--bg);
            border-radius: 14px;
            padding: 14px 8px;
        }

        .schedule-day strong {
            display: block;
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.4;
        }

        .schedule-day span {
            font-size: 12px;
            color: var(--muted);
        }

        .schedule-body {
            flex: 1;
        }

        .schedule-body .badge {
            margin-bottom: 8px;
        }

        .schedule-body h3 {
            font-size: 16px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .schedule-body p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

        .schedule-arrow {
            color: var(--muted);
            font-size: 16px;
            flex-shrink: 0;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: border-color .25s ease, box-shadow .25s ease;
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, .25);
            box-shadow: var(--shadow-lg);
        }

        .faq-q {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 26px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            text-align: left;
            transition: color .2s ease;
        }

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

        .faq-q i {
            font-size: 14px;
            color: var(--muted);
            transition: transform .3s ease, color .3s ease;
            flex-shrink: 0;
        }

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

        .faq-a {
            display: none;
            padding: 0 26px 22px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px dashed var(--border);
            margin: 0 26px 0 0;
            padding-left: 0;
            padding-right: 0;
            margin-left: 26px;
            padding-top: 16px;
        }

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

        .cta-section {
            padding: 90px 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 16, 38, .95), rgba(37, 99, 235, .85));
        }

        .cta-box {
            position: relative;
            z-index: 2;
        }

        .cta-box h2 {
            color: #fff;
            font-size: 36px;
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .85);
            font-size: 17px;
            line-height: 1.7;
            max-width: 480px;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: flex-end;
            flex-wrap: wrap;
        }

        .site-footer {
            background: #0b1424;
            color: #94a3b8;
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 44px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 16px;
            color: #94a3b8;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo .logo-icon {
            font-size: 16px;
        }

        .footer-logo .logo-name {
            color: #fff;
            font-size: 20px;
        }

        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 18px;
            font-weight: 700;
        }

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: #94a3b8;
        }

        .footer-col ul li a {
            color: #94a3b8;
            transition: color .2s ease;
        }

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

        .footer-col ul li i {
            width: 20px;
            margin-right: 4px;
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: #64748b;
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-links span {
            color: var(--accent);
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        .faq-q:focus-visible,
        .nav-toggle:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .35);
            outline-offset: 3px;
        }

        @media (max-width: 1024px) {
            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 74px;
                left: -300px;
                width: 300px;
                max-width: 85vw;
                height: calc(100vh - 74px);
                background: #fff;
                box-shadow: var(--shadow-lg);
                margin-left: 0;
                transition: left .3s ease;
                overflow-y: auto;
                z-index: 200;
                padding: 20px;
            }

            .main-nav.open {
                left: 0;
            }

            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

            .nav-link {
                padding: 14px 16px;
                justify-content: space-between;
            }

            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                box-shadow: none;
                border: 1px solid var(--border);
                border-radius: 14px;
                margin-top: 8px;
                opacity: 1;
                visibility: visible;
                display: none;
                padding: 18px;
            }

            .has-mega.open .mega-panel {
                display: block;
            }

            .has-mega:hover .mega-panel {
                transform: none;
                opacity: 1;
                visibility: visible;
            }

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

            .header-actions .btn-sm {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space: 68px;
            }

            .page-hero {
                padding: 64px 0;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .hero-lead {
                font-size: 16px;
            }

            .hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }

            .stat-item strong {
                font-size: 22px;
            }

            .hero-card {
                margin-top: 24px;
            }

            .hero-card img {
                height: 280px;
            }

            .section-head h2 {
                font-size: 27px;
            }

            .cta-box h2 {
                font-size: 28px;
            }

            .cta-actions {
                justify-content: flex-start;
                margin-top: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .schedule-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .schedule-day {
                flex: 0 0 auto;
                display: flex;
                align-items: center;
                gap: 10px;
                padding: 8px 16px;
            }

            .schedule-arrow {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .logo-name {
                font-size: 17px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

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

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

            .hero-stats {
                gap: 16px;
            }

            .stat-item strong {
                font-size: 20px;
            }

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

            .section-head p {
                font-size: 15px;
            }

            .step-card {
                padding: 24px 20px;
            }

            .feature-body {
                padding: 20px;
            }

            .security-visual img {
                height: 260px;
            }

            .security-callout {
                padding: 12px 16px;
            }

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

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

            .faq-q {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-a {
                margin-left: 20px;
                padding-right: 0;
            }
        }