/* roulang page: index */
:root {
            --brand-50: #f0f5ff;
            --brand-100: #e0eaff;
            --brand-500: #2563eb;
            --brand-600: #1e4fbf;
            --brand-700: #1a3d94;
            --accent-400: #f59e0b;
            --accent-500: #d97706;
            --dark: #0f172a;
            --light: #f8fafc;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius-xl: 20px;
            --radius-lg: 14px;
            --radius-md: 10px;
            --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 32px rgba(37, 99, 235, 0.12);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font-family);
            color: var(--text);
            background: #fff;
            line-height: 1.7;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section-padding {
            padding: 96px 0;
        }

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-weak);
            max-width: 640px;
            line-height: 1.7;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
            color: #fff;
            padding: 14px 32px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
        }

        .btn-outline-dark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 2px solid var(--border);
            color: var(--dark);
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        .btn-outline-dark:hover {
            border-color: var(--brand-500);
            color: var(--brand-500);
            transform: translateY(-2px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background: var(--brand-50);
            color: var(--brand-600);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .card {
            background: #fff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(37, 99, 235, 0.2);
        }

        .nav-link {
            font-weight: 500;
            color: var(--text);
            padding: 8px 4px;
            position: relative;
            font-size: 0.95rem;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand-500);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--brand-600);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--dark);
            color: #fff !important;
            padding: 10px 22px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }

        .nav-cta:hover {
            background: var(--brand-600);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
        }

        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            background: var(--light);
            border: 1px solid var(--border);
            color: var(--dark);
            font-size: 1.2rem;
        }

        .hero-section {
            position: relative;
            background: linear-gradient(rgba(15, 23, 42, 0.75), rgba(15, 23, 42, 0.55)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 140px 0 110px;
            color: #fff;
        }

        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            margin-bottom: 28px;
        }

        .hero-title {
            font-size: 3.4rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            max-width: 720px;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 64px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 40px;
        }

        .hero-stat-item {
            text-align: left;
        }

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        .feature-card {
            padding: 40px 32px;
            text-align: center;
        }

        .feature-icon {
            width: 72px;
            height: 72px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--brand-50), var(--brand-100));
            color: var(--brand-600);
        }

        .feature-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .feature-desc {
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .category-card {
            position: relative;
            height: 320px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            cursor: pointer;
            transition: all 0.35s ease;
        }

        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .category-card:hover img {
            transform: scale(1.05);
        }

        .category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.2) 60%, transparent 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 28px;
        }

        .category-title {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .category-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
            max-width: 280px;
            line-height: 1.6;
        }

        .category-arrow {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            backdrop-filter: blur(4px);
            transition: all 0.3s ease;
        }

        .category-card:hover .category-arrow {
            background: #fff;
            color: var(--brand-600);
        }

        .post-card {
            display: flex;
            gap: 20px;
            padding: 28px;
            align-items: flex-start;
        }

        .post-card-date {
            flex-shrink: 0;
            width: 68px;
            height: 68px;
            background: var(--brand-50);
            border-radius: var(--radius-lg);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--brand-600);
        }

        .post-card-date .day {
            font-size: 1.5rem;
            font-weight: 800;
            line-height: 1;
        }

        .post-card-date .month {
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 4px;
        }

        .post-card-content {
            flex: 1;
            min-width: 0;
        }

        .post-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-card-title:hover {
            color: var(--brand-500);
        }

        .post-card-desc {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .post-card-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        .post-card-meta i {
            margin-right: 4px;
        }

        .stat-block {
            background: var(--dark);
            border-radius: var(--radius-xl);
            padding: 60px 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stat-block::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.3), transparent 70%);
            border-radius: 50%;
        }

        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

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

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, #fff, #dbeafe);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            margin-bottom: 16px;
            transition: all 0.3s ease;
            background: #fff;
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-question i {
            color: var(--brand-500);
            font-size: 0.9rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-answer {
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.8;
            margin-top: 12px;
            display: none;
        }

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

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

        .cta-section {
            background: linear-gradient(135deg, var(--brand-600), var(--brand-700));
            border-radius: var(--radius-xl);
            padding: 72px 56px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent 70%);
            border-radius: 50%;
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--brand-700);
            padding: 14px 36px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        .footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px;
        }

        .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: inline-block;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 340px;
            margin-bottom: 24px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: all 0.2s ease;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            margin-top: 48px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 1024px) {
            .section-padding {
                padding: 72px 0;
            }

            .hero-title {
                font-size: 2.8rem;
            }

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

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 20px;
            }

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

            .section-title {
                font-size: 1.6rem;
            }

            .hero-section {
                padding: 100px 0 72px;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
                margin-top: 48px;
                padding-top: 32px;
            }

            .hero-stat-number {
                font-size: 1.5rem;
            }

            .hero-stat-label {
                font-size: 0.8rem;
            }

            .mobile-menu-btn {
                display: flex;
            }

            .desktop-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
                flex-direction: column;
                padding: 20px;
                border-radius: 0 0 var(--radius-xl) var(--radius-xl);
                z-index: 50;
            }

            .desktop-nav.open {
                display: flex;
                gap: 12px;
            }

            .nav-link::after {
                display: none;
            }

            .nav-link.active {
                background: var(--brand-50);
                padding: 8px 16px;
                border-radius: 8px;
            }

            .feature-card {
                padding: 28px 20px;
            }

            .category-card {
                height: 260px;
            }

            .post-card {
                flex-direction: row;
                padding: 20px;
            }

            .post-card-date {
                width: 56px;
                height: 56px;
            }

            .stat-block {
                padding: 40px 24px;
            }

            .cta-section {
                padding: 48px 24px;
            }

            .cta-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }

            .hero-subtitle {
                font-size: 0.92rem;
            }

            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }

            .hero-buttons .btn-primary,
            .hero-buttons .btn-outline {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                gap: 12px;
            }

            .hero-stat-number {
                font-size: 1.3rem;
            }

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

            .post-card {
                flex-direction: column;
                gap: 12px;
            }

            .post-card-date {
                flex-direction: row;
                width: auto;
                height: auto;
                padding: 6px 16px;
                gap: 8px;
            }

            .post-card-date .day {
                font-size: 1.1rem;
            }

            .post-card-date .month {
                font-size: 0.75rem;
                margin-top: 0;
            }

            .category-card {
                height: 220px;
            }

            .navbar-brand {
                font-size: 1rem;
            }
        }

/* roulang page: article */
:root {
            --brand-50: #eef2ff; --brand-100: #e0e7ff; --brand-200: #c7d2fe; --brand-300: #a5b4fc;
            --brand-400: #818cf8; --brand-500: #6366f1; --brand-600: #4f46e5; --brand-700: #4338ca;
            --dark: #0f172a; --gray-50: #f8fafc; --gray-100: #f1f5f9; --gray-600: #475569; --gray-700: #334155;
            --radius: 16px; --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06); --shadow-hover: 0 18px 40px rgba(15, 23, 42, 0.12);
        }
        html { scroll-behavior: smooth; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; background-color: #f8fafc; color: #1e293b; line-height: 1.7; -webkit-font-smoothing: antialiased; }
        .container-custom { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .nav-link { font-size: 0.95rem; font-weight: 500; color: #334155; padding: 8px 2px; border-bottom: 2px solid transparent; transition: all .25s; }
        .nav-link:hover { color: #4f46e5; border-bottom-color: #4f46e5; }
        .nav-link.active { color: #4f46e5; border-bottom-color: #4f46e5; font-weight: 600; }
        .nav-cta { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, #6366f1, #4f46e5); color: #fff; font-weight: 600; padding: 10px 22px; border-radius: 50px; box-shadow: 0 4px 14px rgba(79, 70, 229, .3); transition: all .3s; font-size: .9rem; }
        .nav-cta:hover { background: linear-gradient(135deg, #4f46e5, #4338ca); box-shadow: 0 8px 24px rgba(79, 70, 229, .4); transform: translateY(-2px); color: #fff; }
        .mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; color: #334155; cursor: pointer; }
        .mobile-menu-panel { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 100; background: rgba(15, 23, 42, .4); }
        .mobile-menu-panel.open { display: block; }
        .mobile-menu-drawer { width: 320px; max-width: 85%; height: 100%; background: #fff; padding: 28px; overflow-y: auto; box-shadow: 20px 0 50px rgba(0,0,0,.1); }
        .mobile-menu-drawer a { display: block; padding: 14px 16px; border-radius: 12px; font-size: 1rem; font-weight: 500; color: #334155; transition: all .2s; }
        .mobile-menu-drawer a:hover { background: #eef2ff; color: #4f46e5; }
        .hero-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; border-radius: 30px; font-size: 0.8rem; font-weight: 600; letter-spacing: .5px; }
        .article-body { font-size: 1.06rem; line-height: 1.95; color: #334155; }
        .article-body h2 { font-size: 1.6rem; font-weight: 700; color: #0f172a; margin: 40px 0 16px; padding-bottom: 10px; border-bottom: 2px solid #eef2ff; }
        .article-body h3 { font-size: 1.2rem; font-weight: 700; color: #0f172a; margin: 28px 0 12px; }
        .article-body p { margin: 18px 0; }
        .article-body ul, .article-body ol { margin: 18px 0; padding-left: 26px; }
        .article-body ul { list-style: disc; } .article-body ol { list-style: decimal; }
        .article-body li { margin: 8px 0; }
        .article-body blockquote { margin: 24px 0; padding: 20px 24px; background: #f8fafc; border-left: 4px solid #4f46e5; border-radius: 0 12px 12px 0; color: #475569; font-style: italic; }
        .article-body img { border-radius: 14px; margin: 28px 0; box-shadow: 0 8px 30px rgba(15,23,42,.08); }
        .article-body a { color: #4f46e5; text-decoration: underline; }
        .article-card { transition: all .3s; border-radius: 16px; overflow: hidden; }
        .article-card:hover { transform: translateY(-6px); box-shadow: 0 14px 36px rgba(15,23,42,.1); }
        .article-card:hover .card-title { color: #4f46e5; }
        .data-card { border-radius: 18px; border: 1px solid #e2e8f0; background: #fff; transition: all .3s; }
        .data-card:hover { box-shadow: 0 8px 30px rgba(15,23,42,.06); transform: translateY(-4px); }
        .footer { background: #0b1220; color: #94a3b8; padding: 64px 0 0; margin-top: 80px; }
        .footer-logo { display: flex; align-items: center; font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
        .footer-desc { color: #64748b; font-size: .95rem; line-height: 1.8; margin-top: 14px; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: #94a3b8; text-decoration: none; transition: all .3s; }
        .footer-links a:hover { color: #818cf8; padding-left: 6px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; margin-top: 48px; color: #64748b; }
        .article-tag { display: inline-block; padding: 4px 14px; background: #eef2ff; color: #4f46e5; font-size: .8rem; font-weight: 600; border-radius: 30px; }
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: .88rem; color: #94a3b8; }
        .breadcrumb a { color: #cbd5e1; text-decoration: none; } .breadcrumb a:hover { color: #6366f1; }
        .breadcrumb .sep { color: #475569; }
        .share-btn { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: #eef2ff; color: #4f46e5; font-size: 1rem; transition: all .3s; border: none; cursor: pointer; }
        .share-btn:hover { background: #4f46e5; color: #fff; transform: translateY(-3px); }
        .sidebar-card { border-radius: 18px; border: 1px solid #e2e8f0; background: #fff; padding: 24px; margin-bottom: 24px; }
        .cta-section { background: linear-gradient(135deg, rgba(15,23,42,.92), rgba(30,27,75,.9)); position: relative; overflow: hidden; }
        .cta-section:before { content: ''; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: rgba(99,102,241,.15); top: -80px; right: -80px; }
        .cta-section:after { content: ''; position: absolute; width: 200px; height: 200px; border-radius: 50%; background: rgba(245,158,11,.12); bottom: -60px; left: -40px; }
        .mobile-menu-close { background: none; border: none; font-size: 1.5rem; color: #334155; padding: 8px; cursor: pointer; }
        .go-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; border-radius: 50%; background: #4f46e5; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(79,70,229,.3); cursor: pointer; border: none; z-index: 50; opacity: 0; visibility: hidden; transition: all .3s; }
        .go-top.show { opacity: 1; visibility: visible; }
        .go-top:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(79,70,229,.4); }
        .side-nav-item { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 12px; background: #f8fafc; color: #334155; font-size: .92rem; font-weight: 500; transition: all .25s; margin-bottom: 8px; text-decoration: none; }
        .side-nav-item:hover { background: #eef2ff; color: #4f46e5; transform: translateX(4px); }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-menu-btn { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; }
            .container-custom { padding: 0 18px; }
            .hero { min-height: 480px !important; }
            .hero h1 { font-size: 1.9rem !important; line-height: 1.3 !important; }
            .article-body { font-size: 1rem; }
            .article-body h2 { font-size: 1.35rem; }
        }
        @media (max-width: 520px) {
            .container-custom { padding: 0 14px; }
            .hero-badge span { font-size: .72rem; }
            .breadcrumb { font-size: .78rem; }
            .footer { padding-top: 40px; }
        }
        ::selection { background: #c7d2fe; color: #1e1b4b; }
        img { max-width: 100%; height: auto; }
        .focus-outline:focus-visible { outline: 2px solid #4f46e5; outline-offset: 2px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --brand-50: #fff7ed;
            --brand-100: #ffedd5;
            --brand-200: #fed7aa;
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --dark: #0f172a;
            --gray-50: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-600: #475569;
            --gray-800: #1e293b;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 4px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 6px 20px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
        }

        /* ===== Reset / Base ===== */
        *,
        *::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', Arial, sans-serif;
            line-height: 1.75;
            color: var(--gray-800);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== 导航 ===== */
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }
        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--gray-600);
            padding: 0.4rem 0.1rem;
            border-bottom: 2px solid transparent;
            transition: color 0.25s ease, border-color 0.25s ease;
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--brand-600);
        }
        .nav-link.active {
            color: var(--brand-600);
            border-bottom-color: var(--brand-600);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            padding: 0.65rem 1.25rem;
            border-radius: 12px;
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.35);
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(249, 115, 22, 0.45);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: var(--gray-100);
            border: none;
            border-radius: 12px;
            color: var(--gray-800);
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .mobile-menu-btn:hover {
            background: var(--brand-50);
        }

        /* 移动端抽屉 */
        .mobile-menu {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 999;
            background: #fff;
            box-shadow: 0 12px 36px rgba(15, 23, 42, 0.16);
            padding: 1.25rem 1.5rem 1.5rem;
            border-bottom-left-radius: 20px;
            border-bottom-right-radius: 20px;
        }
        .mobile-menu.hidden {
            display: none;
        }
        .mobile-menu a {
            display: flex;
            align-items: center;
            padding: 0.8rem 0.75rem;
            border-radius: 12px;
            color: var(--gray-800);
            font-size: 0.95rem;
            font-weight: 500;
            transition: background 0.2s ease;
        }
        .mobile-menu a:hover {
            background: var(--gray-100);
        }
        .mobile-menu a.nav-cta {
            margin-top: 0.75rem;
            justify-content: center;
            color: #fff;
        }
        .mobile-menu a.nav-cta:hover {
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
        }

        /* ===== 页面横幅 ===== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 6.5rem 0 5rem;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.78) 45%, rgba(15, 23, 42, 0.45) 100%);
        }
        .page-hero .container-custom {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 999px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
        }
        .breadcrumb i {
            font-size: 0.65rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .breadcrumb a:hover {
            color: var(--brand-200);
        }
        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, rgba(249, 115, 22, 0.95), rgba(234, 88, 12, 0.9));
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.35rem 1rem;
            border-radius: 999px;
            margin-bottom: 1rem;
        }
        .hero-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.85rem 1.6rem;
            border-radius: 14px;
            box-shadow: 0 8px 22px rgba(249, 115, 22, 0.4);
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(249, 115, 22, 0.5);
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.85rem 1.6rem;
            border-radius: 14px;
            backdrop-filter: blur(4px);
            transition: all 0.3s ease;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 板块 ===== */
        .section {
            padding: 5rem 0;
        }
        .section-gray {
            background: var(--gray-50);
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 3rem;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 1.1rem;
            border-radius: 999px;
            background: var(--brand-50);
            color: var(--brand-600);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 1rem;
        }
        .section-header h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 0.75rem;
        }
        .section-header p {
            font-size: 0.98rem;
            color: var(--gray-600);
            line-height: 1.8;
        }

        /* ===== 分类卡片 ===== */
        .category-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--gray-200);
            box-shadow: var(--shadow-sm);
            transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--brand-200);
        }
        .category-card-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.06);
        }
        .category-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.35));
        }
        .category-card-img .cat-icon {
            position: absolute;
            bottom: 1rem;
            left: 1.25rem;
            z-index: 2;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-600);
            font-size: 1.1rem;
            box-shadow: var(--shadow-md);
        }
        .category-card-body {
            padding: 1.5rem 1.25rem 1.75rem;
        }
        .category-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
        }
        .category-card-body p {
            font-size: 0.88rem;
            color: var(--gray-600);
            line-height: 1.75;
        }
        .category-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            margin-top: 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand-600);
            transition: gap 0.3s ease, color 0.3s ease;
        }
        .category-card-btn:hover {
            gap: 0.7rem;
            color: var(--brand-700);
        }

        /* ===== 资讯卡 ===== */
        .guide-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.5rem;
            border: 1px solid var(--gray-200);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .guide-card:hover {
            border-color: var(--brand-200);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .guide-card .guide-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--brand-50), var(--brand-100));
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 1.25rem;
        }
        .guide-card h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }
        .guide-card p {
            font-size: 0.88rem;
            color: var(--gray-600);
            line-height: 1.75;
            flex: 1;
        }
        .guide-card-tag {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.85rem;
            background: var(--brand-50);
            color: var(--brand-600);
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 1.2rem;
            align-self: flex-start;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, #0f172a, #1e293b);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -80%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.16) 0%, transparent 70%);
        }
        .stat-card {
            text-align: center;
            padding: 2rem 1.25rem;
        }
        .stat-card .stat-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 1rem;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-500);
            font-size: 1.3rem;
        }
        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 0.35rem;
        }

        /* ===== 流程 ===== */
        .step-item {
            position: relative;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--gray-200);
            padding: 2rem 1.75rem;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            box-shadow: 0 6px 18px rgba(249, 115, 22, 0.3);
        }
        .step-item h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.55rem;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--gray-600);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--gray-200);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--brand-200);
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            justify-content: space-between;
            padding: 1.2rem 1.4rem;
            cursor: pointer;
            list-style: none;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--dark);
            transition: color 0.2s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            font-size: 0.75rem;
            color: var(--brand-600);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary i {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 1.4rem 1.4rem;
            font-size: 0.9rem;
            color: var(--gray-600);
            line-height: 1.8;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 5.5rem 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.78));
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3.2vw, 2.4rem);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0f172a;
            padding: 4rem 0 2rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-desc {
            font-size: 0.88rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.65rem;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .footer-links a:hover {
            color: var(--brand-500);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 3rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== focus 状态 ===== */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid var(--brand-200);
            outline-offset: 2px;
            border-radius: 6px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .desktop-nav {
                gap: 1rem;
            }
            .nav-link {
                font-size: 0.88rem;
            }
            .container-custom {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .page-hero {
                padding: 4.5rem 0 3.5rem;
            }
            .section {
                padding: 3.5rem 0;
            }
            .hero-btn-group {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-primary,
            .btn-ghost-light {
                width: 100%;
                justify-content: center;
            }
            .stat-card {
                padding: 1.5rem 0.75rem;
            }
            .stat-card .stat-num {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .footer-bottom {
                font-size: 0.75rem;
            }
        }

/* roulang page: category2 */
:root {
            --brand-500: #3b82f6;
            --brand-600: #1e5eff;
            --brand-700: #164ee0;
            --accent-500: #ff7a1a;
            --accent-600: #f26419;
            --dark: #0f172a;
            --text: #1e293b;
            --muted: #64748b;
            --border: #e2e8f0;
            --light: #f8fafc;
            --white: #ffffff;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow: 0 12px 32px rgba(15, 23, 42, 0.10);
            --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.14);
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            color: var(--text);
            background: var(--white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        button,
        input {
            font-family: inherit;
            outline: none;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .container-custom-lg {
            width: 100%;
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .section {
            padding: 88px 0;
        }

        .section-sm {
            padding: 60px 0;
        }

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

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

        .section-dark {
            background: linear-gradient(135deg, #0f172a 0%, #16233c 100%);
            color: #fff;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.77rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--brand-600);
            background: var(--brand-50);
            border: 1px solid #dbe6ff;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--muted);
            max-width: 640px;
            margin-top: 10px;
            line-height: 1.8;
        }

        .section-head {
            margin-bottom: 42px;
        }

        .card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 999px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            box-shadow: 0 6px 16px rgba(30, 94, 255, 0.28);
        }

        .btn-primary:hover {
            box-shadow: 0 10px 24px rgba(30, 94, 255, 0.38);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: linear-gradient(135deg, #ffa14d, #f26419);
            color: #fff;
            box-shadow: 0 6px 16px rgba(242, 100, 25, 0.28);
        }

        .btn-accent:hover {
            box-shadow: 0 10px 24px rgba(242, 100, 25, 0.38);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid #cbd5e1;
            color: var(--dark);
        }

        .btn-outline:hover {
            border-color: var(--brand-600);
            color: var(--brand-600);
            background: var(--brand-50);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(59, 130, 246, 0.4);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(30, 94, 255, 0.1);
            color: var(--brand-700);
        }

        .badge-orange {
            background: rgba(255, 122, 26, 0.12);
            color: #d9530e;
        }

        .badge-green {
            background: rgba(16, 185, 129, 0.12);
            color: #047857;
        }

        .badge-purple {
            background: rgba(139, 92, 246, 0.12);
            color: #6d28d9;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: #475569;
            position: relative;
            padding: 8px 2px;
            transition: color 0.2s ease;
        }

        .nav-link:hover {
            color: var(--brand-600);
        }

        .nav-link.active {
            color: var(--brand-600);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2.5px;
            background: linear-gradient(90deg, var(--brand-500), var(--brand-600));
            border-radius: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #ffa14d, #f26419);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 999px;
            box-shadow: 0 4px 14px rgba(242, 100, 25, 0.28);
            transition: var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(242, 100, 25, 0.36);
        }

        .mobile-menu-btn {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 12px;
            background: var(--white);
            color: var(--dark);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-menu-btn:hover {
            border-color: var(--brand-600);
            color: var(--brand-600);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 49;
            background: var(--white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
            padding: 20px 20px 26px;
            transform: translateY(-100%);
            transition: transform 0.3s ease;
        }

        .mobile-menu.open {
            transform: translateY(0);
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
        }

        .mobile-menu a:hover {
            background: var(--light);
            color: var(--brand-600);
        }

        .mobile-menu a.active {
            background: var(--brand-50);
            color: var(--brand-700);
            font-weight: 600;
        }

        .mobile-menu .nav-cta {
            justify-content: center;
            margin-top: 12px;
            color: #fff;
        }

        .page-hero {
            position: relative;
            background-position: center;
            background-size: cover;
            padding: 110px 0 96px;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.72) 50%, rgba(15, 23, 42, 0.50) 100%);
            z-index: 1;
        }

        .page-hero .container-custom {
            position: relative;
            z-index: 2;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: #c7d8ff;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(6px);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: 2.9rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .page-hero p {
            color: rgba(255, 255, 255, 0.82);
            font-size: 1.05rem;
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .stat-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 18px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.2;
        }

        .stat-num span {
            font-size: 1.2rem;
            color: var(--brand-600);
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--muted);
            margin-top: 6px;
        }

        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .filter-tab {
            padding: 9px 22px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--white);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--muted);
            cursor: pointer;
            transition: var(--transition);
        }

        .filter-tab:hover {
            border-color: var(--brand-600);
            color: var(--brand-600);
            background: var(--brand-50);
        }

        .filter-tab.active {
            background: var(--dark);
            border-color: var(--dark);
            color: #fff;
        }

        .news-card {
            position: relative;
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-5px);
        }

        .news-card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .news-card:hover .news-card-img img {
            transform: scale(1.05);
        }

        .news-card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
        }

        .news-card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.5;
            margin-bottom: 8px;
            transition: color 0.2s ease;
        }

        .news-card-body h3:hover {
            color: var(--brand-600);
        }

        .news-card-body p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 14px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: #94a3b8;
            padding-top: 12px;
            border-top: 1px solid #f1f5f9;
        }

        .rank-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid #f1f5f9;
            transition: var(--transition);
        }

        .rank-card:last-child {
            border-bottom: none;
        }

        .rank-card:hover {
            padding-left: 8px;
        }

        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: #f1f5f9;
            color: #64748b;
            font-size: 0.9rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .rank-card:nth-child(1) .rank-num {
            background: linear-gradient(135deg, #ffa14d, #f26419);
            color: #fff;
        }

        .rank-card:nth-child(2) .rank-num {
            background: linear-gradient(135deg, #94a3b8, #64748b);
            color: #fff;
        }

        .rank-card:nth-child(3) .rank-num {
            background: linear-gradient(135deg, #d4a373, #b08968);
            color: #fff;
        }

        .rank-card h4 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .rank-card h4:hover {
            color: var(--brand-600);
        }

        .rank-card .rank-meta {
            font-size: 0.76rem;
            color: #94a3b8;
        }

        .editor-pick {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            background-position: center;
            background-size: cover;
        }

        .editor-pick-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.25));
        }

        .editor-pick-content {
            position: relative;
            z-index: 2;
            padding: 28px;
            color: #fff;
        }

        .editor-pick-content .badge {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            backdrop-filter: blur(4px);
        }

        .editor-pick-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            line-height: 1.35;
            margin: 12px 0 8px;
        }

        .editor-pick-content p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
        }

        .flash-item {
            position: relative;
            padding: 20px 0 20px 36px;
            border-left: 2px solid var(--border);
            transition: var(--transition);
        }

        .flash-item::before {
            content: "";
            position: absolute;
            left: -7px;
            top: 28px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--brand-600);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px rgba(30, 94, 255, 0.25);
        }

        .flash-item:hover {
            border-left-color: var(--brand-600);
            padding-left: 42px;
        }

        .flash-time {
            font-size: 0.78rem;
            color: var(--brand-600);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .flash-item h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.6;
            margin-bottom: 4px;
        }

        .flash-item p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
        }

        .cta-card {
            background: linear-gradient(120deg, #0f172a, #1e3a5f, #164ee0);
            border-radius: 24px;
            padding: 60px 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            background: rgba(255, 122, 26, 0.2);
            border-radius: 50%;
            filter: blur(50px);
        }

        .cta-input {
            width: 100%;
            max-width: 420px;
            padding: 14px 22px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.92rem;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .cta-input:focus {
            border-color: rgba(255, 255, 255, 0.6);
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 22px 24px;
            background: var(--white);
            transition: var(--transition);
            margin-bottom: 14px;
        }

        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow-sm);
        }

        .faq-q {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 6px;
        }

        .faq-q i {
            color: var(--brand-600);
        }

        .faq-a {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.75;
            padding-left: 28px;
        }

        .category-entry {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }

        .category-entry:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: var(--brand-500);
        }

        .category-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            box-shadow: 0 6px 14px rgba(30, 94, 255, 0.25);
        }

        .category-entry:nth-child(2) .category-icon {
            background: linear-gradient(135deg, #ffa14d, #f26419);
            box-shadow: 0 6px 14px rgba(242, 100, 25, 0.25);
        }

        .category-entry h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .category-entry p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
        }

        .category-entry .arrow {
            margin-left: auto;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .category-entry:hover .arrow {
            background: var(--brand-600);
            color: #fff;
        }

        .footer {
            background: #0b1120;
            padding: 72px 0 0;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer h4 {
            color: #fff;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--accent-500);
            padding-left: 4px;
        }

        .footer-bottom {
            margin-top: 60px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 1024px) {
            .section {
                padding: 68px 0;
            }

            .page-hero h1 {
                font-size: 2.4rem;
            }

            .editor-pick {
                min-height: 260px;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none !important;
            }

            .mobile-menu-btn {
                display: flex !important;
            }

            .mobile-menu {
                display: block;
            }

            .section {
                padding: 52px 0;
            }

            .page-hero {
                padding: 80px 0 64px;
            }

            .page-hero h1 {
                font-size: 2rem;
            }

            .section-title {
                font-size: 1.55rem;
            }

            .cta-card {
                padding: 42px 24px;
            }

            .cta-input {
                max-width: 100%;
            }

            .category-entry {
                padding: 22px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .page-hero h1 {
                font-size: 1.7rem;
            }

            .hero-tag {
                font-size: 0.73rem;
                padding: 5px 12px;
            }

            .news-card-img {
                height: 170px;
            }

            .stat-card {
                padding: 16px 10px;
            }

            .stat-num {
                font-size: 1.5rem;
            }

            .footer {
                padding-top: 52px;
            }
        }

/* roulang page: category3 */
:root {
            --brand-50: #eef4ff;
            --brand-100: #dfe9ff;
            --brand-500: #3b82f6;
            --brand-600: #2563eb;
            --brand-700: #1d4ed8;
            --dark: #0f172a;
            --text: #334155;
            --text-light: #64748b;
            --bg-light: #f8fafc;
            --border: #e2e8f0;
            --radius: 1rem;
            --radius-sm: 0.75rem;
            --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.12);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--text);
            background: #fff;
            line-height: 1.7;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }
        .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            padding: 0.35rem 0.15rem;
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: var(--brand-600);
        }
        .nav-link.active {
            color: var(--brand-600);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--brand-600);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--brand-600);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            padding: 0.625rem 1.25rem;
            border-radius: 9999px;
            transition: all 0.25s ease;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }
        .nav-cta:hover {
            background: var(--brand-700);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark);
            cursor: pointer;
            padding: 0.5rem;
            border-radius: 0.5rem;
            transition: background 0.2s;
        }
        .mobile-menu-btn:hover {
            background: #f1f5f9;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 20px 35px rgba(15, 23, 42, 0.12);
            padding: 1rem 1.5rem 1.5rem;
            z-index: 49;
            border-radius: 0 0 1rem 1rem;
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav a {
            display: block;
            padding: 0.7rem 0.75rem;
            border-radius: 0.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            transition: background 0.2s, color 0.2s;
        }
        .mobile-nav a:hover {
            background: var(--brand-50);
            color: var(--brand-600);
        }
        .mobile-nav a.active {
            color: var(--brand-600);
            background: var(--brand-50);
        }
        .mobile-nav a.mobile-cta {
            margin-top: 0.75rem;
            background: var(--brand-600);
            color: #fff;
            text-align: center;
            border-radius: 9999px;
            padding: 0.75rem 1rem;
        }
        .mobile-nav a.mobile-cta:hover {
            background: var(--brand-700);
        }
        .page-hero {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            background:
                linear-gradient(100deg, rgba(2, 8, 23, 0.92) 0%, rgba(15, 23, 42, 0.75) 45%, rgba(15, 23, 42, 0.45) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            padding: 6rem 0;
        }
        .page-hero .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 1.5rem;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            padding: 0.35rem 0.9rem;
            border-radius: 9999px;
        }
        .page-hero .breadcrumb a {
            transition: color 0.2s;
        }
        .page-hero .breadcrumb a:hover {
            color: #fff;
        }
        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 1rem 0;
            letter-spacing: -0.01em;
        }
        .page-hero .hero-sub {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: var(--dark);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.8rem 1.75rem;
            border-radius: 9999px;
            transition: all 0.25s ease;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            background: #f1f5f9;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.8rem 1.75rem;
            border-radius: 9999px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            backdrop-filter: blur(6px);
            transition: all 0.25s ease;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
        }
        .section-pad {
            padding: 5.5rem 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--brand-600);
            background: var(--brand-50);
            border-radius: 9999px;
            padding: 0.35rem 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .section-title {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.8;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 9999px;
            padding: 0.45rem 1.1rem;
            transition: all 0.2s ease;
            cursor: default;
        }
        .tag-item i {
            color: var(--brand-500);
            font-size: 0.8rem;
        }
        .tag-item:hover {
            border-color: var(--brand-500);
            color: var(--brand-600);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
        }
        .card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .card-img {
            height: 200px;
            overflow: hidden;
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 1.5rem 1.5rem 1.75rem;
        }
        .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--brand-600);
            transition: gap 0.2s ease, color 0.2s ease;
        }
        .card-link:hover {
            gap: 0.55rem;
            color: var(--brand-700);
        }
        .info-list-item {
            display: grid;
            grid-template-columns: 180px auto;
            gap: 1.5rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .info-list-item:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .info-list-item .info-thumb {
            height: 100%;
            min-height: 160px;
            overflow: hidden;
        }
        .info-list-item .info-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .info-list-item:hover .info-thumb img {
            transform: scale(1.04);
        }
        .info-content {
            padding: 1.75rem 1.75rem 1.75rem 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .info-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .info-content p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0.75rem;
        }
        .info-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.8rem;
            color: #94a3b8;
        }
        .info-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .stats-section {
            background: linear-gradient(120deg, #020617 0%, #0f172a 60%, #1e293b 100%);
            color: #fff;
            padding: 4.5rem 0;
        }
        .stat-item {
            text-align: center;
            padding: 2rem 1rem;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }
        .stat-number i {
            font-size: 2rem;
            color: var(--brand-500);
            margin-right: 0.25rem;
        }
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 0.5rem;
        }
        .process-step {
            position: relative;
            padding: 2rem 1.5rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            text-align: center;
            transition: all 0.3s ease;
            height: 100%;
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--brand-100);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 3rem;
            height: 3rem;
            border-radius: 1rem;
            background: var(--brand-50);
            color: var(--brand-600);
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 1.1rem;
        }
        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: #fff;
            padding: 1.5rem 1.75rem;
            transition: all 0.25s ease;
        }
        .faq-item:hover {
            border-color: var(--brand-100);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.06);
        }
        .faq-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }
        .faq-item h3::before {
            content: '\f059';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--brand-500);
            font-size: 0.9rem;
            margin-top: 0.2rem;
        }
        .faq-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.75;
            padding-left: 1.5rem;
        }
        .cta-section {
            background: linear-gradient(110deg, #1e3a8a 0%, #2563eb 55%, #3b82f6 100%);
            padding: 5rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.25;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .cta-title {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }
        .cta-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
            max-width: 460px;
        }
        .cta-form {
            background: #fff;
            border-radius: 1.25rem;
            padding: 2rem;
            box-shadow: 0 20px 45px rgba(0, 0, 0, 0.18);
        }
        .cta-form .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.4rem;
        }
        .cta-form input,
        .cta-form select {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: 0.75rem;
            font-size: 0.9rem;
            color: var(--text);
            background: #f8fafc;
            transition: all 0.2s ease;
            margin-bottom: 1rem;
        }
        .cta-form input:focus,
        .cta-form select:focus {
            outline: none;
            border-color: var(--brand-500);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
            background: #fff;
        }
        .cta-form .submit-btn {
            width: 100%;
            background: var(--brand-600);
            color: #fff;
            border: none;
            padding: 0.85rem 1.5rem;
            border-radius: 0.75rem;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .cta-form .submit-btn:hover {
            background: var(--brand-700);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
        }
        .footer {
            background: #020617;
            color: rgba(255, 255, 255, 0.7);
            padding: 4rem 0 0;
            margin-top: 0;
        }
        .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            margin-bottom: 1rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-links a::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--brand-500);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.5rem 0;
            margin-top: 3rem;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 1024px) {
            .desktop-nav {
                gap: 1.25rem;
            }
            .nav-link {
                font-size: 0.88rem;
            }
            .page-hero {
                min-height: 420px;
            }
            .info-list-item {
                grid-template-columns: 140px auto;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
            .page-hero {
                min-height: 380px;
                padding: 4.5rem 0;
            }
            .section-pad {
                padding: 3.5rem 0;
            }
            .info-list-item {
                grid-template-columns: 1fr;
            }
            .info-content {
                padding: 0 1.5rem 1.5rem;
            }
            .cta-inner {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .process-step {
                margin-bottom: 1rem;
            }
            .stats-section {
                padding: 3rem 0;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 1.1rem;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero {
                min-height: 340px;
                padding: 3.5rem 0;
            }
            .btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary,
            .btn-ghost {
                justify-content: center;
            }
            .cta-form {
                padding: 1.5rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .footer-bottom {
                text-align: center;
            }
        }