/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --dark: #0f172a;
            --dark-800: #1e293b;
            --gray-bg: #f8fafc;
            --gray-100: #f1f5f9;
            --text: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 6px 24px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 56px;
            --space-xl: 80px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--gray-bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

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

        button {
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

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

        section {
            position: relative;
        }

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

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto var(--space-lg);
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 100px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--dark);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ======== Header / Navigation ======== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.04);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--dark);
        }

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

        .nav-logo .logo-badge {
            width: 16px;
            height: 16px;
            background: var(--primary);
            border-radius: 4px;
            display: inline-block;
            position: relative;
            overflow: hidden;
        }

        .nav-logo .logo-badge::after {
            content: '';
            position: absolute;
            inset: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .navbar-nav {
            gap: 4px;
            margin-left: 24px;
        }

        .navbar-nav .nav-link {
            color: var(--text-muted);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all 0.25s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--gray-100);
        }

        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-search {
            position: relative;
            flex: 0 0 auto;
            width: 200px;
        }

        .nav-search .form-control {
            padding: 8px 14px 8px 36px;
            border-radius: 100px;
            border: 1px solid var(--border);
            background: var(--gray-100);
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .nav-search .form-control:focus {
            background: var(--white);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
            outline: none;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 14px;
            pointer-events: none;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: var(--white) !important;
            border: none;
            padding: 9px 22px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--primary) !important;
            border: 1.5px solid var(--primary);
            padding: 9px 22px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .btn-outline-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark) !important;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        /* ======== Hero ======== */
        .hero {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(30, 58, 138, 0.92) 100%),
                url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
            padding: 120px 0 90px;
            color: var(--white);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: rgba(245, 158, 11, 0.15);
            border-radius: 50%;
            filter: blur(80px);
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 20px;
            border-radius: 100px;
            font-size: 14px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

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

        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        .hero h1 span {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 18px;
            max-width: 620px;
            margin: 0 auto 38px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .hero-actions .btn {
            padding: 12px 30px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 100px;
        }

        .hero-actions .btn-light-custom {
            background: var(--white);
            color: var(--dark) !important;
            border: none;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            transition: all 0.3s ease;
        }

        .hero-actions .btn-light-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }

        .hero-actions .btn-accent {
            background: var(--accent);
            color: var(--dark) !important;
            border: none;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
            transition: all 0.3s ease;
        }

        .hero-actions .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.5);
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

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

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--white);
            display: block;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ======== Categories ======== */
        .categories {
            background: var(--white);
            padding: var(--space-xl) 0;
        }

        .category-card {
            background: var(--gray-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            transition: all 0.35s ease;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.35s ease;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .category-card:hover::before {
            transform: scaleX(1);
        }

        .category-icon {
            width: 72px;
            height: 72px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            font-size: 28px;
            transition: all 0.35s ease;
        }

        .category-icon.bg-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .category-icon.bg-amber {
            background: var(--accent-light);
            color: var(--accent);
        }

        .category-icon.bg-green {
            background: #dcfce7;
            color: #16a34a;
        }

        .category-card:hover .category-icon {
            transform: scale(1.1) rotate(-4deg);
        }

        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .category-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.25s ease;
        }

        .category-link:hover {
            gap: 12px;
            color: var(--primary-dark);
        }

        /* ======== Features ======== */
        .features {
            background: var(--gray-bg);
            padding: var(--space-xl) 0;
        }

        .feature-row {
            align-items: center;
            margin-bottom: 80px;
        }

        .feature-row:last-child {
            margin-bottom: 0;
        }

        .feature-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .feature-img-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .feature-img-wrap:hover img {
            transform: scale(1.03);
        }

        .feature-content .feature-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 16px;
        }

        .feature-content h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .feature-content p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
        }

        .feature-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }

        .feature-list li:last-child {
            border-bottom: none;
        }

        .feature-list li i {
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 50%;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
        }

        /* ======== News / Latest ======== */
        .news-section {
            background: var(--white);
            padding: var(--space-xl) 0;
        }

        .news-feature-card {
            background: var(--gray-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.35s ease;
            height: 100%;
            display: block;
        }

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

        .news-feature-card .card-img {
            height: 220px;
            overflow: hidden;
        }

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

        .news-feature-card:hover .card-img img {
            transform: scale(1.03);
        }

        .news-feature-card .card-body {
            padding: 24px;
        }

        .news-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 12px;
        }

        .news-feature-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .news-feature-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-list-wrap {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--gray-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px;
            transition: all 0.3s ease;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateX(4px);
        }

        .news-list-item .news-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .news-list-item .news-info {
            flex: 1;
            min-width: 0;
        }

        .news-list-item h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-list-item p {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin: 0;
        }

        /* ======== Steps ======== */
        .steps-section {
            background: var(--gray-bg);
            padding: var(--space-xl) 0;
        }

        .step-card {
            text-align: center;
            padding: 32px 24px;
            position: relative;
        }

        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
            position: relative;
            z-index: 1;
        }

        .step-card::before {
            content: '';
            position: absolute;
            top: 44px;
            left: calc(50% + 40px);
            right: calc(-50% + 40px);
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .step-card:last-child::before {
            display: none;
        }

        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark);
        }

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

        /* ======== FAQ ======== */
        .faq-section {
            background: var(--white);
            padding: var(--space-xl) 0;
        }

        .accordion.custom-accordion {
            max-width: 780px;
            margin: 0 auto;
        }

        .accordion.custom-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion.custom-accordion .accordion-button {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            background: var(--white);
            border: none;
            transition: all 0.3s ease;
        }

        .accordion.custom-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
            box-shadow: none;
        }

        .accordion.custom-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .accordion.custom-accordion .accordion-body {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ======== CTA ======== */
        .cta-section {
            padding: var(--space-xl) 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 58, 138, 0.9) 100%),
                url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
            color: var(--white);
            text-align: center;
        }

        .cta-box {
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-box p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
        }

        .cta-box .btn {
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 100px;
        }

        /* ======== Footer ======== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 60px 0 0;
        }

        .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
        }

        .footer-logo .logo-badge {
            width: 16px;
            height: 16px;
            background: var(--primary);
            border-radius: 4px;
            display: inline-block;
            position: relative;
            overflow: hidden;
        }

        .footer-logo .logo-badge::after {
            content: '';
            position: absolute;
            inset: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: all 0.25s ease;
        }

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

        .footer-bottom {
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 13px;
        }

        /* ======== Responsive ======== */
        @media (max-width: 1024px) {
            .hero {
                padding: 100px 0 70px;
            }

            .hero h1 {
                font-size: 40px;
            }

            .feature-row {
                margin-bottom: 50px;
            }

            .feature-img-wrap img {
                height: 260px;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: var(--space-lg) 0;
            }

            .hero {
                padding: 80px 0 60px;
            }

            .hero h1 {
                font-size: 32px;
            }

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

            .hero-stats {
                gap: 24px;
            }

            .stat-num {
                font-size: 28px;
            }

            .section-title {
                font-size: 28px;
            }

            .nav-search {
                display: none;
            }

            .navbar-nav {
                margin-left: 0;
            }

            .feature-content h3 {
                font-size: 24px;
            }

            .step-card::before {
                display: none;
            }

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

            .feature-list li {
                justify-content: center;
                text-align: left;
            }
        }

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

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

            .hero-actions {
                flex-direction: column;
                gap: 12px;
            }

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

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

            .news-list-item {
                padding: 14px;
            }

            .cta-box h2 {
                font-size: 26px;
            }

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

        /* Focus states */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.3);
            outline-offset: 2px;
        }

        /* Custom utility */
        .text-primary-brand {
            color: var(--primary) !important;
        }

        .bg-gray {
            background: var(--gray-bg);
        }

/* roulang page: article */
:root {
            --primary: #4F6EF7;
            --primary-dark: #3B55D6;
            --primary-light: #EEF2FF;
            --accent: #7C5CFC;
            --accent-light: #F3F0FF;
            --dark: #1A1D29;
            --dark-2: #232738;
            --text: #2E3440;
            --text-weak: #6B7280;
            --bg: #F7F8FC;
            --white: #FFFFFF;
            --border: #E8EAF1;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(30, 34, 50, 0.08);
            --shadow-hover: 0 12px 40px rgba(79, 110, 247, 0.16);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .btn {
            border-radius: 12px;
            font-weight: 600;
            padding: 10px 22px;
            border: none;
            transition: var(--transition);
            font-size: 15px;
        }

        .btn:focus,
        .btn:active:focus {
            box-shadow: 0 0 0 4px rgba(79, 110, 247, 0.18);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            padding: 10px 24px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(79, 110, 247, 0.3);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(79, 110, 247, 0.4);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: 12px;
            padding: 9px 22px;
            font-weight: 600;
        }

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

        .badge-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 50px;
        }

        .site-header {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(232, 234, 241, 0.8);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 14px 0;
        }

        .site-header .navbar {
            padding: 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.02em;
        }

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

        .logo-badge {
            display: inline-block;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            position: relative;
            flex-shrink: 0;
        }

        .logo-badge::after {
            content: "H";
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 16px;
        }

        .site-header .nav-link {
            font-weight: 500;
            color: var(--text);
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .site-header .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .site-header .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .site-header .navbar-toggler {
            border: none;
            padding: 6px;
        }

        .site-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(79, 110, 247, 0.2);
        }

        .site-header .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30, 36, 60, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .nav-search {
            position: relative;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
            font-size: 14px;
            z-index: 2;
        }

        .nav-search .form-control {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 8px 16px 8px 40px;
            font-size: 14px;
            width: 220px;
            transition: var(--transition);
        }

        .nav-search .form-control:focus {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(79, 110, 247, 0.12);
        }

        .article-hero {
            padding: 56px 0 40px;
            background: linear-gradient(135deg, #F0F3FF 0%, #F7F5FF 100%);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(79, 110, 247, 0.1) 0%, transparent 70%);
        }

        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

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

        .article-hero .breadcrumb a:hover {
            text-decoration: underline;
        }

        .article-hero .breadcrumb i {
            font-size: 12px;
            color: #B0B5C3;
        }

        .article-hero h1 {
            font-size: 34px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
            max-width: 900px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            color: var(--text-weak);
            font-size: 14px;
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            color: var(--primary);
            font-size: 13px;
        }

        .article-meta .meta-category {
            background: var(--primary-light);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 13px;
        }

        .article-content-section {
            padding: 48px 0 64px;
        }

        .article-main-content {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 40px;
            margin-bottom: 32px;
        }

        .article-cover {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 32px;
            position: relative;
        }

        .article-cover img {
            width: 100%;
            height: auto;
            min-height: 260px;
            object-fit: cover;
        }

        .article-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(26, 29, 41, 0.12) 100%);
            pointer-events: none;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }

        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--dark);
            margin: 32px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin: 24px 0 12px;
        }

        .article-body p {
            margin-bottom: 18px;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 20px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid rgba(79, 110, 247, 0.3);
        }

        .article-body a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary);
        }

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
        }

        .article-body blockquote {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--text);
        }

        .article-body code {
            background: var(--bg);
            border: 1px solid #E9E9F0;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 14px;
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .article-not-found .icon-wrap {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--bg);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .article-not-found .icon-wrap i {
            font-size: 28px;
            color: var(--text-weak);
        }

        .article-not-found h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-weak);
            margin-bottom: 20px;
        }

        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 28px;
            margin-bottom: 24px;
        }

        .sidebar-card .side-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card .side-title i {
            color: var(--primary);
        }

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

        .side-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .side-list li:last-child {
            border-bottom: none;
        }

        .side-list li a {
            font-size: 14px;
            color: var(--text);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.5;
        }

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

        .side-list li a i {
            font-size: 12px;
            margin-top: 4px;
            color: var(--primary);
        }

        .side-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .side-tags .tag-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 5px 12px;
            font-size: 13px;
            color: var(--text-weak);
            transition: var(--transition);
        }

        .side-tags .tag-item:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }

        .side-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            color: #fff;
            margin-bottom: 24px;
        }

        .side-cta .cta-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .side-cta .cta-desc {
            font-size: 14px;
            opacity: 0.9;
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .side-cta .btn-light-custom {
            background: #fff;
            color: var(--primary);
            border-radius: 10px;
            padding: 8px 22px;
            font-weight: 600;
            font-size: 14px;
        }

        .side-cta .btn-light-custom:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .related-section {
            padding: 60px 0;
            background: var(--bg);
        }

        .related-section .section-head {
            text-align: center;
            margin-bottom: 40px;
        }

        .related-section .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .related-section .section-desc {
            color: var(--text-weak);
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .related-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .related-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .related-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .card-cat {
            background: var(--accent-light);
            color: var(--accent);
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            align-self: flex-start;
            margin-bottom: 12px;
        }

        .related-card .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .related-card .card-text {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
        }

        .related-card .card-meta i {
            color: var(--primary);
        }

        .cta-banner {
            padding: 80px 0;
            background: linear-gradient(135deg, #1A1D29 0%, #232738 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
        }

        .cta-banner .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-banner .cta-label {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            padding: 5px 16px;
            font-size: 13px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .cta-banner h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-banner p {
            font-size: 16px;
            opacity: 0.8;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .cta-banner .btn-white {
            background: #fff;
            color: var(--dark);
            padding: 12px 32px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
        }

        .cta-banner .btn-white:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(255, 255, 255, 0.2);
        }

        .site-footer {
            background: #14161F;
            color: #9CA3AF;
            padding: 60px 0 0;
        }

        .footer-top {
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .logo-badge {
            width: 32px;
            height: 32px;
            border-radius: 9px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #9CA3AF;
            max-width: 340px;
        }

        .footer-col {
            padding-left: 16px;
        }

        .footer-title {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            position: relative;
        }

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

        .footer-links li {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-links a {
            color: #9CA3AF;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 5px;
        }

        .footer-links i {
            color: var(--primary);
            width: 18px;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #6B7280;
        }

        @media (max-width: 992px) {
            .site-header .navbar-collapse {
                background: #fff;
                border-radius: var(--radius);
                padding: 20px;
                margin-top: 12px;
                box-shadow: var(--shadow);
                border: 1px solid var(--border);
            }

            .site-header .nav-link {
                padding: 10px 14px;
            }

            .nav-search {
                margin-top: 10px;
                width: 100%;
            }

            .nav-search .form-control {
                width: 100%;
            }

            .site-header .d-flex {
                width: 100%;
                justify-content: space-between;
                margin-top: 12px;
            }

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

            .article-main-content {
                padding: 28px;
            }

            .article-sidebar {
                margin-top: 32px;
                position: static;
            }

            .footer-col {
                padding-left: 0;
            }
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 40px 0 28px;
            }

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

            .article-main-content {
                padding: 20px;
            }

            .article-cover {
                margin-bottom: 24px;
            }

            .article-body {
                font-size: 15px;
            }

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

            .cta-banner h2 {
                font-size: 26px;
            }

            .cta-banner p {
                font-size: 15px;
            }

            .related-section .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 21px;
            }

            .article-meta {
                font-size: 13px;
                gap: 10px;
            }

            .article-main-content {
                padding: 18px;
                border-radius: 14px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.85;
            }

            .article-body h2 {
                font-size: 18px;
                margin-top: 26px;
            }

            .sidebar-card {
                padding: 20px;
            }

            .related-card .card-title {
                font-size: 15px;
            }

            .cta-banner {
                padding: 56px 0;
            }

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

            .cta-banner .btn-white {
                padding: 10px 24px;
                font-size: 15px;
            }

            .footer-top .row {
                flex-direction: column;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --primary-light: #eef2ff;
            --accent: #0ea5e9;
            --accent-soft: #e0f2fe;
            --success: #10b981;
            --warning: #f59e0b;
            --dark: #0f172a;
            --body-bg: #f8fafc;
            --text: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(15, 23, 42, .06);
            --shadow-lg: 0 12px 40px rgba(15, 23, 42, .10);
            --spacing-section: 96px;
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--body-bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 72px 0;
            position: relative;
        }
        .section-alt {
            background: #ffffff;
        }
        .section-title-wrap {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-title-wrap .section-eyebrow {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .section-title-wrap h2 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 16px;
            color: var(--dark);
        }
        .section-title-wrap p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, .85);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, .8);
            transition: var(--transition);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--dark) !important;
        }
        .logo-badge {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: inline-block;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(79, 70, 229, .3);
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 16px;
            border-radius: 8px;
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-search {
            position: relative;
            width: 220px;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 14px;
        }
        .nav-search .form-control {
            border-radius: 999px;
            padding-left: 40px;
            border: 1px solid var(--border);
            background: #f1f5f9;
            font-size: 14px;
            height: 42px;
        }
        .nav-search .form-control:focus {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(79, 70, 229, .12);
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 999px;
            border: none;
            gap: 8px;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(79, 70, 229, .3);
            transition: var(--transition);
        }
        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(79, 70, 229, .35);
            color: #fff;
        }
        .navbar-toggler {
            border: none;
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,23,42,.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Banner */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(120deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            isolation: isolate;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .88), rgba(30, 27, 75, .75));
            z-index: -1;
        }
        .page-banner .breadcrumb-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            backdrop-filter: blur(8px);
            padding: 8px 18px;
            border-radius: 999px;
            color: rgba(255, 255, 255, .85);
            font-size: 14px;
            margin-bottom: 24px;
        }
        .page-banner .breadcrumb-custom a {
            color: rgba(255, 255, 255, .85);
        }
        .page-banner .breadcrumb-custom a:hover {
            color: #fff;
        }
        .page-banner h1 {
            font-size: 48px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -1px;
            line-height: 1.25;
            margin-bottom: 20px;
        }
        .page-banner h1 .highlight {
            color: #818cf8;
            position: relative;
        }
        .page-banner .lead-text {
            color: rgba(255, 255, 255, .8);
            font-size: 18px;
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .banner-stats .stat-pill {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .15);
            backdrop-filter: blur(8px);
            padding: 12px 20px;
            border-radius: 12px;
            color: #fff;
            font-size: 14px;
        }
        .banner-stats .stat-pill i {
            color: #818cf8;
            margin-right: 8px;
        }

        /* Entry Cards */
        .entry-cards .entry-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .entry-cards .entry-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(79, 70, 229, .3);
        }
        .entry-card .card-thumb {
            height: 160px;
            border-radius: 0;
            overflow: hidden;
            position: relative;
        }
        .entry-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .entry-card:hover .card-thumb img {
            transform: scale(1.06);
        }
        .entry-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .entry-card .card-body .card-tag {
            display: inline-block;
            background: var(--accent-soft);
            color: #0369a1;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .entry-card .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--dark);
        }
        .entry-card .card-body p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 18px;
        }
        .entry-card .card-body .btn-card {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-light);
            padding: 8px 16px;
            border-radius: 8px;
            align-self: flex-start;
            transition: var(--transition);
        }
        .entry-card .card-body .btn-card:hover {
            background: var(--primary);
            color: #fff;
            transform: translateX(4px);
        }

        /* Update List */
        .update-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .update-list {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .update-list .list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            flex-wrap: wrap;
        }
        .update-list .list-item:last-child {
            border-bottom: none;
        }
        .update-list .list-item:hover {
            background: #f8fafc;
            padding-left: 30px;
        }
        .list-item .list-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: var(--primary-light);
            color: var(--primary);
            flex-shrink: 0;
        }
        .list-item .list-content {
            flex: 1;
            min-width: 220px;
        }
        .list-item .list-content h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--dark);
        }
        .list-item .list-content p {
            color: var(--text-muted);
            font-size: 14px;
            margin: 0;
        }
        .list-item .list-tag {
            background: #f1f5f9;
            color: var(--text-muted);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .list-item .list-tag.is-hot {
            background: #fef2f2;
            color: #b91c1c;
        }
        .list-item .list-tag.is-new {
            background: #ecfdf5;
            color: #047857;
        }

        /* Security Data */
        .security-section {
            position: relative;
            background: linear-gradient(135deg, #0f172a, #1e1b4b);
            color: #fff;
        }
        .security-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: .12;
        }
        .security-section .container {
            position: relative;
            z-index: 1;
        }
        .security-section .section-title-wrap h2 {
            color: #fff;
        }
        .security-section .section-title-wrap p {
            color: rgba(255, 255, 255, .7);
        }
        .security-grid .security-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            backdrop-filter: blur(8px);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            height: 100%;
            transition: var(--transition);
        }
        .security-card:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-4px);
        }
        .security-card .sec-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            background: rgba(129, 140, 248, .25);
            color: #a5b4fc;
            margin-bottom: 16px;
        }
        .security-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .security-card p {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            margin-bottom: 0;
        }
        .security-card .sec-num {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        /* Steps */
        .steps-section .step-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            position: relative;
            height: 100%;
            transition: var(--transition);
        }
        .steps-section .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .step-card .step-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1;
            margin-bottom: 16px;
        }
        .step-card .step-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--dark);
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ */
        .faq-section .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 16px;
            overflow: hidden;
            background: #fff;
            box-shadow: 0 2px 8px rgba(15, 23, 42, .04);
        }
        .faq-section .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            padding: 18px 24px;
            background: #fff;
            border: none;
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
        }
        .faq-section .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .faq-section .accordion-body {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--border);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(120deg, #4f46e5, #0ea5e9);
            border-radius: 24px;
            padding: 60px 48px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(79, 70, 229, .3);
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .1);
        }
        .cta-section h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
        }
        .cta-section p {
            color: rgba(255, 255, 255, .85);
            font-size: 16px;
            max-width: 560px;
            margin-bottom: 28px;
            position: relative;
        }
        .cta-section .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            padding: 12px 30px;
            border-radius: 999px;
            box-shadow: 0 4px 14px rgba(0, 0, 0, .12);
            transition: var(--transition);
            position: relative;
        }
        .cta-section .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
            color: var(--primary-dark);
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding-top: 64px;
            margin-top: 0;
        }
        .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-desc {
            color: #94a3b8;
            font-size: 14px;
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94a3b8;
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #818cf8;
            padding-left: 4px;
        }
        .footer-links i {
            color: #64748b;
            width: 18px;
        }
        .footer-bottom {
            padding: 24px 0 28px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: #64748b;
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 64px 0;
            }
            .page-banner h1 {
                font-size: 40px;
            }
            .nav-search {
                display: none;
            }
            .section-title-wrap h2 {
                font-size: 32px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .page-banner {
                padding: 72px 0 56px;
            }
            .page-banner h1 {
                font-size: 32px;
            }
            .page-banner .lead-text {
                font-size: 16px;
            }
            .banner-stats .stat-pill {
                font-size: 13px;
                padding: 10px 14px;
            }
            .section-title-wrap h2 {
                font-size: 28px;
            }
            .cta-section {
                padding: 40px 28px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .update-list .list-item {
                padding: 16px;
            }
            .list-item .list-tag {
                margin-left: 60px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner .lead-text {
                font-size: 15px;
            }
            .banner-stats .stat-pill {
                width: calc(50% - 8px);
            }
            .section-title-wrap {
                margin-bottom: 40px;
            }
            .btn-primary-custom {
                font-size: 13px;
                padding: 8px 16px;
            }
            .footer-col {
                margin-bottom: 24px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #4f46e5;
            --primary-dark: #4338ca;
            --primary-light: #eef2ff;
            --accent: #06b6d4;
            --accent-light: #ecfeff;
            --dark-bg: #0f172a;
            --dark-card: #1e293b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --text-dark: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --border-soft: #f1f5f9;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
            --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.10), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
            --shadow-primary: 0 10px 30px -8px rgba(79, 70, 229, 0.35);
            --transition: all 0.25s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-white);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            max-width: 1250px;
        }

        /* ============ 导航 ============ */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.02em;
        }

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

        .logo-badge {
            display: inline-block;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            box-shadow: var(--shadow-primary);
            position: relative;
            flex-shrink: 0;
        }

        .logo-badge::after {
            content: '';
            position: absolute;
            inset: 9px;
            border-radius: 5px;
            background: rgba(255, 255, 255, 0.25);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }

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

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

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

        .nav-search {
            position: relative;
            width: 220px;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 13px;
            pointer-events: none;
        }

        .nav-search .form-control {
            border-radius: 30px;
            padding-left: 36px;
            padding-right: 16px;
            border: 1px solid var(--border);
            background: var(--bg-light);
            font-size: 14px;
            height: 40px;
            transition: var(--transition);
        }

        .nav-search .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
            background: #fff;
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 10px 24px;
            font-weight: 600;
            font-size: 14px;
            box-shadow: var(--shadow-primary);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 35px -8px rgba(79, 70, 229, 0.45);
            color: #fff;
        }

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

        .btn-primary-custom:focus-visible,
        .nav-link:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.4);
            outline-offset: 2px;
        }

        .btn-outline-custom {
            border: 1.5px solid var(--border);
            color: var(--text-dark);
            border-radius: 30px;
            padding: 10px 24px;
            font-weight: 600;
            font-size: 14px;
            background: #fff;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
            border-radius: 8px;
            color: var(--text-dark);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
            outline: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23334155' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* ============ 分类Banner ============ */
        .category-hero {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #312e81 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.25) 0%, transparent 65%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.18) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .category-hero .badge-hero {
            display: inline-block;
            background: rgba(79, 70, 229, 0.25);
            border: 1px solid rgba(139, 132, 255, 0.3);
            color: #c7d2fe;
            border-radius: 30px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 24px;
        }

        .category-hero h1 {
            color: #fff;
            font-size: clamp(26px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
            max-width: 640px;
            margin-bottom: 14px;
        }

        .category-hero h1 .highlight {
            background: linear-gradient(90deg, #a5b4fc, #67e8f9);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .category-hero .lead-text {
            color: #cbd5e1;
            font-size: 16px;
            line-height: 1.8;
            max-width: 580px;
            margin-bottom: 20px;
        }

        .category-hero .hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .category-hero .hero-meta .item {
            display: flex;
            align-items: center;
            gap: 6px;
            color: #94a3b8;
            font-size: 14px;
        }

        .category-hero .hero-meta .item i {
            color: #67e8f9;
        }

        /* ============ 内部页通用顶部 ============ */
        .inner-page-hero {
            background: linear-gradient(135deg, #eef2ff 0%, #f0f9ff 50%, #ecfeff 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 64px 0 48px;
            border-bottom: 1px solid var(--border-soft);
            position: relative;
        }

        .inner-page-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.70) 100%);
        }

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

        .inner-page-hero .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
        }

        .inner-page-hero h1 {
            font-size: clamp(28px, 4vw, 38px);
            color: var(--text-dark);
            font-weight: 800;
            letter-spacing: -0.02em;
            max-width: 700px;
            margin-bottom: 10px;
            line-height: 1.25;
        }

        .inner-page-hero .subtitle {
            color: var(--text-body);
            font-size: 16px;
            max-width: 600px;
            margin-bottom: 18px;
            line-height: 1.7;
        }

        .inner-page-hero .breadcrumb {
            margin-bottom: 0;
        }

        .breadcrumb .breadcrumb-item a {
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .breadcrumb .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 500;
            font-size: 14px;
        }

        /* ============ 步骤流程 ============ */
        .steps-section {
            padding: 80px 0;
            background: var(--bg-white);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(24px, 3.5vw, 36px);
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.7;
            max-width: 720px;
        }

        .steps-wrap {
            margin-top: 40px;
        }

        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            height: 100%;
            position: relative;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(79, 70, 229, 0.2);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-primary);
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 12px;
            line-height: 1.7;
        }

        .step-card .step-tip {
            font-size: 13px;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 8px;
            padding: 6px 12px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ============ 图文教程区块 ============ */
        .guide-block-section {
            padding: 80px 0;
            background: var(--bg-light);
        }

        .guide-row {
            margin-top: 40px;
        }

        .guide-img-wrap {
            background: linear-gradient(135deg, #eef2ff, #f0f9ff);
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 16px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-soft);
        }

        .guide-img-wrap img {
            border-radius: var(--radius-md);
            display: block;
            width: 100%;
        }

        .guide-content {
            padding: 10px 0 10px 30px;
        }

        .guide-content .guide-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 12px;
        }

        .guide-content h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .guide-content p {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

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

        .guide-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-body);
            border-bottom: 1px dashed var(--border);
            line-height: 1.6;
        }

        .guide-list li:last-child {
            border-bottom: none;
        }

        .guide-list li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ============ 功能卡片区 ============ */
        .feature-section {
            padding: 80px 0;
            background: var(--bg-white);
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            height: 100%;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s;
        }

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

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 18px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

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

        .feature-card .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .feature-card .mini-tag {
            background: var(--bg-light);
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 20px;
        }

        /* ============ 使用场景 ============ */
        .scenario-section {
            padding: 80px 0;
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
        }

        .scenario-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 700px;
            height: 700px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.15) 0%, transparent 60%);
        }

        .scenario-section .section-title {
            color: #fff;
        }

        .scenario-section .section-desc {
            color: #94a3b8;
        }

        .scenario-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            height: 100%;
            transition: var(--transition);
        }

        .scenario-card:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(139, 132, 255, 0.25);
            transform: translateY(-4px);
        }

        .scenario-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(79, 70, 229, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #a5b4fc;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scenario-card p {
            color: #94a3b8;
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .scenario-card .scenario-meta {
            margin-top: 14px;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .scenario-card .scenario-meta span {
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.08);
            color: #cbd5e1;
        }

        /* ============ 效果数据 ============ */
        .stats-section {
            padding: 70px 0;
            background: var(--bg-white);
        }

        .stats-card {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-light) 100%);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid rgba(79, 70, 229, 0.08);
            transition: var(--transition);
        }

        .stats-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .stats-card .number {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

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

        /* ============ FAQ ============ */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-light);
        }

        .faq-accordion .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(79, 70, 229, 0.15);
        }

        .faq-accordion .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            background: transparent;
            padding: 18px 22px;
            box-shadow: none;
            border: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-light);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
            border-radius: var(--radius-md);
        }

        .faq-accordion .accordion-button::after {
            background-size: 12px;
        }

        .faq-accordion .accordion-body {
            padding: 0 22px 20px;
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #eef2ff, #f0f9ff);
            position: relative;
        }

        .cta-card {
            background: linear-gradient(135deg, var(--primary) 0%, #4338ca 50%, #312e81 100%);
            border-radius: 24px;
            padding: 50px 40px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 60%);
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .cta-card p {
            font-size: 15px;
            opacity: 0.85;
            max-width: 500px;
            margin-bottom: 24px;
            position: relative;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: 30px;
            padding: 12px 32px;
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            position: relative;
            z-index: 2;
        }

        .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
            color: var(--primary);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--dark-bg);
            color: #94a3b8;
            padding: 64px 0 0;
        }

        .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .logo-badge {
            width: 32px;
            height: 32px;
            border-radius: 8px;
        }

        .footer-logo .logo-badge::after {
            inset: 8px;
            border-radius: 4px;
        }

        .footer-desc {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.7;
            max-width: 380px;
            margin-bottom: 0;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-links li i {
            color: #64748b;
            font-size: 14px;
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: #64748b;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                padding: 16px 0;
                border-top: 1px solid var(--border-soft);
                margin-top: 12px;
            }

            .navbar-nav .nav-link {
                padding: 10px 12px;
                border-radius: 8px;
            }

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

            .nav-search {
                width: 100%;
                margin: 12px 0;
            }

            .navbar-nav.me-auto {
                margin-bottom: 8px;
            }

            .category-hero {
                padding: 56px 0 44px;
            }

            .guide-content {
                padding: 24px 0 0;
            }
        }

        @media (max-width: 767.98px) {
            .category-hero h1 {
                font-size: 28px;
            }

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

            .steps-section,
            .guide-block-section,
            .feature-section,
            .scenario-section,
            .faq-section,
            .cta-section {
                padding: 56px 0;
            }

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

            .cta-card {
                padding: 36px 24px;
                border-radius: 18px;
            }

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

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

        @media (max-width: 520px) {
            .site-header .navbar {
                padding: 10px 0;
            }

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

            .logo-badge {
                width: 30px;
                height: 30px;
            }

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

            .category-hero .lead-text {
                font-size: 14px;
            }

            .inner-page-hero {
                padding: 44px 0 36px;
            }

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

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

            .section-desc {
                font-size: 14px;
            }

            .step-card {
                padding: 22px 18px;
            }

            .feature-card {
                padding: 24px 18px;
            }

            .guide-img-wrap {
                padding: 10px;
            }

            .stats-card .number {
                font-size: 26px;
            }

            .footer-top .row > div {
                margin-bottom: 24px;
            }

            .footer-col {
                flex: 0 0 50%;
                max-width: 50%;
                margin-bottom: 0;
            }

            .footer-logo {
                font-size: 18px;
            }
        }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #3B5BFD;
            --primary-dark: #2E46C8;
            --primary-light: #EFF2FF;
            --accent: #F59E0B;
            --accent-dark: #D97706;
            --bg-body: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-dark: #0F172A;
            --bg-soft: #F1F5F9;
            --text-main: #1E293B;
            --text-body: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.06);
            --shadow: 0 8px 24px rgba(30, 41, 59, 0.08);
            --shadow-lg: 0 16px 40px rgba(30, 41, 59, 0.12);
            --transition: all 0.3s ease;
        }

        /* ========== 基础 & Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            padding-left: 0;
            list-style: none;
            margin-bottom: 0;
        }

        .container {
            max-width: 1200px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: var(--shadow);
        }

        .navbar {
            padding: 14px 0;
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text-main);
            gap: 10px;
        }

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

        .logo-badge {
            display: inline-block;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 12px rgba(59, 91, 253, 0.35);
            position: relative;
            flex-shrink: 0;
        }

        .logo-badge::after {
            content: "";
            position: absolute;
            inset: 8px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.85);
        }

        .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 15px;
            color: var(--text-body);
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition);
        }

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

        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-search {
            position: relative;
            width: 220px;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 13px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 14px;
            pointer-events: none;
        }

        .nav-search .form-control {
            background: var(--bg-soft);
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 8px 18px 8px 38px;
            font-size: 14px;
            color: var(--text-main);
            transition: var(--transition);
        }

        .nav-search .form-control:focus {
            background: var(--bg-white);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(59, 91, 253, 0.12);
            outline: none;
        }

        .nav-search .form-control::placeholder {
            color: var(--text-muted);
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            border: none;
            border-radius: 999px;
            padding: 9px 22px;
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 14px rgba(59, 91, 253, 0.35);
            transition: var(--transition);
        }

        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(59, 91, 253, 0.45);
            color: #fff;
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(59, 91, 253, 0.3);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-body) !important;
            border-radius: 999px;
            padding: 9px 22px;
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition);
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary) !important;
            background: var(--primary-light);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(59, 91, 253, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231E293B' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== 页面 Hero ========== */
        .page-hero {
            position: relative;
            padding: 90px 0 80px;
            background-color: var(--bg-dark);
            overflow: hidden;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }

        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.72) 55%, rgba(59, 91, 253, 0.35) 100%);
        }

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

        .breadcrumb {
            display: inline-flex;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 999px;
            padding: 6px 18px !important;
            margin-bottom: 22px !important;
            backdrop-filter: blur(8px);
        }

        .breadcrumb-item {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.85);
        }

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

        .breadcrumb-item.active {
            color: var(--accent);
        }

        .breadcrumb-item+.breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .page-hero h1 .accent-text {
            color: var(--accent);
        }

        .page-hero .lead {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 640px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .page-hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .page-hero-badges .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
        }

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

        /* ========== 板块通用 ========== */
        .section {
            padding: 90px 0;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            border-radius: 999px;
            padding: 6px 18px;
            margin-bottom: 16px;
        }

        .section-tag i {
            font-size: 12px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
            margin-bottom: 14px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-head .section-tag {
            margin-bottom: 16px;
        }

        /* ========== 推荐标准 ========== */
        .standard-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            transition: var(--transition);
        }

        .standard-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(59, 91, 253, 0.25);
        }

        .standard-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: var(--primary-light);
            color: var(--primary);
        }

        .standard-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .standard-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            margin-bottom: 0;
        }

        /* ========== 精选卡片 ========== */
        .pick-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .pick-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(59, 91, 253, 0.2);
        }

        .pick-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

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

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

        .pick-cover .cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0) 60%, rgba(15, 23, 42, 0.5) 100%);
        }

        .pick-rank {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary);
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
            backdrop-filter: blur(6px);
        }

        .pick-category {
            position: absolute;
            bottom: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-main);
            backdrop-filter: blur(6px);
        }

        .pick-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .pick-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .pick-body h3 a:hover {
            color: var(--primary);
        }

        .pick-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            margin-bottom: 18px;
            flex: 1;
        }

        .pick-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: auto;
        }

        .pick-score {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-dark);
        }

        .pick-score i {
            color: var(--accent);
        }

        .pick-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .pick-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ========== 对比区 ========== */
        .compare-section {
            background: var(--bg-dark);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }

        .compare-section::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(59, 91, 253, 0.18);
            filter: blur(80px);
        }

        .compare-title {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .compare-desc {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 36px;
            max-width: 620px;
        }

        .compare-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 32px;
            height: 100%;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .compare-card:hover {
            border-color: rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
        }

        .compare-card.danger {
            border-color: rgba(244, 63, 94, 0.3);
        }

        .compare-card.success {
            border-color: rgba(34, 197, 94, 0.3);
        }

        .compare-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
        }

        .compare-icon.danger-icon {
            background: rgba(244, 63, 94, 0.15);
            color: #F43F5E;
        }

        .compare-icon.success-icon {
            background: rgba(34, 197, 94, 0.15);
            color: #22C55E;
        }

        .compare-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .compare-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            padding: 4px 0;
        }

        .compare-list li i {
            margin-top: 3px;
            font-size: 11px;
        }

        .compare-list .fa-xmark {
            color: #F43F5E;
        }

        .compare-list .fa-check {
            color: #22C55E;
        }

        /* ========== 数据块 ========== */
        .stats-section {
            padding: 70px 0;
            background: var(--bg-white);
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: -0.02em;
        }

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

        .stat-divider {
            border-left: 1px solid var(--border);
            height: 60px;
            align-self: center;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(59, 91, 253, 0.2);
        }

        .faq-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-item h3 .faq-icon {
            color: var(--primary);
            font-size: 14px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-item p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 0;
            padding-left: 34px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            left: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            right: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-content h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }

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

        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary) !important;
            border: none;
            border-radius: 999px;
            padding: 12px 30px;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
            transition: var(--transition);
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #fff !important;
            border-radius: 999px;
            padding: 12px 30px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 24px;
            font-size: 14px;
        }

        .footer-top {
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 24px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .logo-badge {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin-bottom: 0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .footer-links li {
            padding: 5px 0;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

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

        .footer-links li i {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom {
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .page-hero {
                padding: 70px 0 60px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
            .section {
                padding: 70px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .nav-search {
                width: 170px;
            }
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: var(--bg-white);
                border-radius: var(--radius);
                box-shadow: var(--shadow-lg);
                padding: 20px;
                margin-top: 14px;
                border: 1px solid var(--border);
            }
            .navbar-nav .nav-link {
                padding: 12px 16px !important;
            }
            .nav-search {
                width: 100%;
                margin: 12px 0;
            }
            .nav-search .form-control {
                width: 100%;
            }
            .stat-divider {
                border-left: none;
                border-top: 1px solid var(--border);
                width: 60px;
                height: 0;
                margin: 8px auto;
            }
        }

        @media (max-width: 768px) {
            body {
                font-size: 15px;
            }
            .page-hero {
                padding: 56px 0 50px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero .lead {
                font-size: 15px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 30px;
            }
            .compare-section {
                padding: 56px 0;
            }
            .compare-title {
                font-size: 24px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-content h2 {
                font-size: 26px;
            }
            .stat-number {
                font-size: 32px;
            }
            .footer-top .footer-col {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero-badges {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: 22px;
            }
            .standard-card {
                padding: 26px 20px;
            }
            .pick-body {
                padding: 20px;
            }
            .compare-card {
                padding: 24px;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .btn-white,
            .btn-outline-white {
                width: 100%;
                justify-content: center;
            }
            .footer-links li {
                font-size: 13px;
            }
        }