/* roulang page: index */
:root {
            --primary: #0f1c3f;
            --primary-light: #1b2a52;
            --accent: #e8b84b;
            --accent-hover: #d4a63c;
            --bg: #f6f7fb;
            --bg-alt: #ffffff;
            --text: #1a2332;
            --text-weak: #5a6577;
            --border: #e3e7f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 8px 30px rgba(15, 28, 63, 0.08);
            --shadow-hover: 0 16px 40px rgba(15, 28, 63, 0.14);
            --transition: all 0.3s ease;
            --container-w: 1200px;
        }

        *,
        *::before,
        *::after {
            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", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .navbar {
            padding: 14px 0;
        }

        .navbar-brand {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            color: var(--primary) !important;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand .brand-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
            margin-right: 2px;
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-weak);
            border-radius: 30px;
            position: relative;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(232, 184, 75, 0.1);
        }

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

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .nav-cta {
            margin-left: 16px;
            padding: 8px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition);
        }

        .nav-cta:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
            font-size: 1.2rem;
            color: var(--primary);
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            border-radius: 6px;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 100px 0 90px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, #233a6e 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(232, 184, 75, 0.12), transparent 55%);
            z-index: 1;
        }

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

        .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: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.05em;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

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

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
        }

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

        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .btn-hero-primary {
            padding: 14px 34px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-hero-primary:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }

        .btn-hero-ghost {
            padding: 14px 34px;
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-hero-ghost:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 56px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .num {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ===== Section common ===== */
        .section {
            padding: 90px 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 60px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent);
            background: rgba(232, 184, 75, 0.1);
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===== Features / Core ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .feature-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }

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

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

        .feature-icon {
            width: 64px;
            height: 64px;
            background: rgba(232, 184, 75, 0.12);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ===== Categories ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .category-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            display: block;
            position: relative;
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(232, 184, 75, 0.4);
        }

        .category-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
            display: flex;
            align-items: flex-end;
            padding: 16px;
        }

        .category-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(15, 28, 63, 0.7));
        }

        .category-img .category-tag {
            position: relative;
            z-index: 2;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 20px;
            letter-spacing: 0.05em;
        }

        .category-body {
            padding: 28px;
        }

        .category-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .category-body p {
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .category-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .category-link i {
            transition: transform 0.3s;
        }

        .category-card:hover .category-link i {
            transform: translateX(4px);
        }

        /* ===== CMS List / Latest ===== */
        .cms-section {
            background: var(--bg);
        }

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

        .cms-item {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cms-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(232, 184, 75, 0.3);
        }

        .cms-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-weak);
        }

        .cms-cat {
            background: rgba(232, 184, 75, 0.15);
            color: #a5821e;
            padding: 3px 12px;
            border-radius: 20px;
            font-weight: 600;
        }

        .cms-time {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .cms-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            transition: var(--transition);
        }

        .cms-item:hover .cms-title {
            color: var(--accent);
        }

        .cms-desc {
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-alt);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            font-size: 1rem;
            color: var(--text-weak);
        }

        .btn-cms-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border: 1.5px solid var(--primary);
            border-radius: 30px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }

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

        /* ===== Data / Timeline ===== */
        .data-section {
            background: var(--primary);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .data-section .section-title,
        .data-section .section-sub,
        .data-section h3,
        .data-section p {
            color: #fff;
        }

        .data-section .section-eyebrow {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent);
        }

        .data-section .section-sub {
            color: rgba(255, 255, 255, 0.75);
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 50px;
        }

        .data-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            transition: var(--transition);
        }

        .data-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .data-item .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .data-item .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 8px;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 50px;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 30px 15px;
        }

        .process-step::after {
            content: "";
            position: absolute;
            top: 45px;
            right: -15px;
            width: 30px;
            height: 2px;
            background: rgba(255, 255, 255, 0.2);
        }

        .process-step:last-child::after {
            display: none;
        }

        .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 800;
            font-size: 1.3rem;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 32px;
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(232, 184, 75, 0.4);
            box-shadow: var(--shadow);
        }

        .faq-question {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            border: none;
            padding: 0;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .faq-question i {
            color: var(--accent);
            flex-shrink: 0;
            transition: transform 0.3s;
        }

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

        .faq-answer {
            margin-top: 14px;
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.75;
            display: none;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--accent) 0%, #d4a63c 100%);
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }

        .cta-box {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .cta-box p {
            font-size: 1.1rem;
            color: var(--primary);
            opacity: 0.8;
            margin-bottom: 30px;
        }

        .btn-cta-light {
            padding: 14px 36px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-light:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 20px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .brand-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            margin-top: 14px;
            max-width: 320px;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

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

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

        .footer-bottom {
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }

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

        /* ===== Button focus ===== */
        .btn:focus,
        .btn-hero-primary:focus,
        .btn-hero-ghost:focus,
        .btn-cta-light:focus,
        .nav-cta:focus,
        .faq-question:focus {
            outline: 3px solid rgba(232, 184, 75, 0.5);
            outline-offset: 2px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.4rem;
            }

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

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

            .process-step::after {
                display: none;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 70px 0;
            }

            .hero {
                padding: 80px 0 70px;
            }

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

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

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-actions .btn-hero-primary {
                justify-content: center;
                width: 100%;
            }

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

            .navbar-collapse {
                background: var(--bg-alt);
                border-radius: var(--radius);
                padding: 20px;
                margin-top: 12px;
                box-shadow: var(--shadow);
                border: 1px solid var(--border);
            }

            .navbar-nav {
                gap: 2px;
            }

            .navbar-nav .nav-link {
                padding: 10px 16px;
                border-radius: 8px;
            }

            .navbar-nav .nav-link.active::after {
                left: 20px;
                transform: none;
                width: 14px;
                height: 3px;
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                width: 100%;
                text-align: center;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }

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

        @media (max-width: 520px) {
            .feature-grid,
            .category-grid,
            .data-grid,
            .process-grid {
                grid-template-columns: 1fr;
            }

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

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

            .hero-stats {
                gap: 20px;
            }

            .cms-item {
                padding: 20px;
            }

            .faq-item {
                padding: 20px;
            }

            .cta-box h2 {
                font-size: 1.6rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a5cff;
            --primary-dark: #0e3db3;
            --primary-light: #e8f0ff;
            --accent: #f0a500;
            --accent-light: #fff4d6;
            --bg: #f7f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(30,41,59,.08);
            --shadow-lg: 0 12px 40px rgba(30,41,59,.12);
            --transition: all .3s ease;
            --font-main: -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-main);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: rgba(255,255,255,.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226,232,240,.7);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(30,41,59,.04);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            font-size: 1.22rem;
            font-weight: 700;
            color: var(--text) !important;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: .5px;
        }
        .brand-dot {
            display: inline-block;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #4f8fff);
            position: relative;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(26,92,255,.3);
        }
        .brand-dot::after {
            content: '';
            position: absolute;
            inset: 7px;
            border-radius: 4px;
            background: rgba(255,255,255,.85);
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            color: var(--text);
            font-size: 1.2rem;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid rgba(26,92,255,.4);
        }
        .navbar-nav {
            gap: 4px;
        }
        .nav-link {
            font-size: .95rem;
            font-weight: 500;
            color: var(--text-light) !important;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--text) !important;
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
            background: var(--primary-light);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .nav-cta {
            margin-left: 16px;
            padding: 8px 22px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--primary), #4f8fff);
            color: #fff !important;
            font-size: .9rem;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(26,92,255,.25);
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26,92,255,.35);
            color: #fff !important;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 90px 0 70px;
            background: linear-gradient(135deg, rgba(15,23,42,.85), rgba(26,92,255,.65)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--bg), transparent);
            pointer-events: none;
        }
        .page-banner .breadcrumb-wrap {
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb {
            background: rgba(255,255,255,.15);
            border-radius: 30px;
            padding: 8px 18px;
            display: inline-flex;
            font-size: .85rem;
            backdrop-filter: blur(8px);
            margin-bottom: 0;
        }
        .page-banner .breadcrumb a {
            color: rgba(255,255,255,.85);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb-item + .breadcrumb-item::before {
            color: rgba(255,255,255,.5);
            content: '›';
        }
        .page-banner .breadcrumb-item.active {
            color: rgba(255,255,255,.7);
        }
        .page-banner .banner-title {
            font-size: clamp(1.8rem, 4vw, 3rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: .5px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        .page-banner .banner-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: .9rem;
            color: rgba(255,255,255,.85);
        }
        .page-banner .banner-meta .badge {
            background: var(--accent);
            color: #1e293b;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: .82rem;
        }
        .page-banner .banner-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .page-banner .banner-meta .meta-item i {
            font-size: .85rem;
            opacity: .7;
        }

        /* ===== Article Section ===== */
        .article-section {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 40px;
            align-items: start;
        }
        @media (max-width: 992px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
        }
        .article-main {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            border: 1px solid rgba(226,232,240,.6);
        }
        @media (max-width: 768px) {
            .article-main {
                padding: 24px;
            }
        }
        .article-body {
            font-size: 1.02rem;
            line-height: 1.9;
            color: #334155;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
            margin: 38px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
            margin: 28px 0 12px;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body ul,
        .article-body ol {
            margin: 16px 0 20px;
            padding-left: 1.5em;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-body a {
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: .9em;
            color: #dc2626;
        }
        .article-body pre {
            background: var(--bg-dark);
            color: #e2e8f0;
            padding: 20px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 24px 0;
        }
        .article-body pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }
        .article-body table {
            width: 100%;
            margin: 24px 0;
            border-collapse: collapse;
            font-size: .95rem;
        }
        .article-body th,
        .article-body td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }
        .article-body th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--text);
        }
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box .icon {
            font-size: 3.5rem;
            color: var(--text-light);
            margin-bottom: 20px;
            opacity: .6;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 28px;
        }
        .not-found-box .btn-primary {
            background: var(--primary);
            border: none;
            padding: 10px 32px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26,92,255,.3);
        }

        /* ===== Sidebar ===== */
        .sidebar-widget {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            margin-bottom: 24px;
            border: 1px solid rgba(226,232,240,.6);
        }
        .widget-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .widget-title i {
            color: var(--primary);
            font-size: 1rem;
        }
        .widget-summary {
            font-size: .93rem;
            color: var(--text-light);
            line-height: 1.75;
        }
        .widget-category-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .widget-category-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: 10px;
            background: var(--bg);
            color: var(--text);
            font-size: .93rem;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .widget-category-list li a:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateX(4px);
        }
        .widget-category-list li a i {
            color: var(--primary);
            width: 18px;
            text-align: center;
            font-size: .9rem;
        }
        .widget-service-card {
            background: linear-gradient(135deg, var(--primary-light), #fff);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
        }
        .widget-service-card .icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 14px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 6px 16px rgba(26,92,255,.3);
        }
        .widget-service-card h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .widget-service-card p {
            font-size: .85rem;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .widget-service-card .btn-service {
            display: inline-block;
            padding: 6px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: 20px;
            font-size: .85rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .widget-service-card .btn-service:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 70px 0;
            background: var(--bg-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header .subtitle {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .85rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 18px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .section-header p {
            color: var(--text-light);
            font-size: .95rem;
            max-width: 560px;
            margin: 0 auto;
        }
        .related-card {
            background: var(--bg);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .related-card .card-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .related-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .related-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .related-card .card-cat {
            font-size: .78rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-block;
            align-self: flex-start;
            margin-bottom: 12px;
        }
        .related-card h5 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card p {
            font-size: .88rem;
            color: var(--text-light);
            line-height: 1.65;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-link {
            margin-top: auto;
            font-size: .88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-card .card-link i {
            transition: transform .2s;
        }
        .related-card:hover .card-link i {
            transform: translateX(4px);
        }
        .static-service-card {
            background: linear-gradient(135deg, var(--primary-light), #f8fbff);
            border: 1px solid rgba(26,92,255,.2);
        }
        .static-service-card .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 14px;
            box-shadow: 0 6px 16px rgba(26,92,255,.25);
        }

        /* ===== Process Section ===== */
        .process-section {
            padding: 70px 0;
            background: var(--bg-dark);
            color: #fff;
        }
        .process-section .section-header h2 {
            color: #fff;
        }
        .process-section .section-header p {
            color: rgba(255,255,255,.7);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 20px;
        }
        @media (max-width: 992px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }
        .process-item {
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.1);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .process-item:hover {
            background: rgba(255,255,255,.1);
            transform: translateY(-4px);
            border-color: rgba(255,255,255,.25);
        }
        .process-item .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #4f8fff);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            box-shadow: 0 6px 18px rgba(26,92,255,.4);
        }
        .process-item h5 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }
        .process-item p {
            font-size: .87rem;
            color: rgba(255,255,255,.65);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .process-item .process-line {
            position: absolute;
            top: 44px;
            right: -14px;
            width: 28px;
            height: 2px;
            background: rgba(255,255,255,.25);
        }
        @media (max-width: 992px) {
            .process-item .process-line {
                display: none;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 70px 0;
        }
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(30,41,59,.04);
        }
        .accordion-button {
            font-size: .98rem;
            font-weight: 600;
            color: var(--text);
            background: var(--bg-white);
            padding: 20px 24px;
            border: none;
        }
        .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(26,92,255,.3);
        }
        .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: '\f078';
            font-size: .8rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: var(--transition);
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            content: '\f077';
        }
        .accordion-body {
            padding: 20px 24px;
            font-size: .93rem;
            line-height: 1.75;
            color: var(--text-light);
            background: var(--bg-white);
            border-top: 1px solid var(--border);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, rgba(15,23,42,.9), rgba(26,92,255,.7)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat fixed;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255,255,255,.8);
            font-size: 1rem;
            max-width: 640px;
            margin: 0 auto 32px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-buttons .btn {
            padding: 12px 36px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .cta-buttons .btn-light {
            background: #fff;
            color: var(--primary);
            border: 2px solid #fff;
        }
        .cta-buttons .btn-light:hover {
            background: transparent;
            color: #fff;
            transform: translateY(-2px);
        }
        .cta-buttons .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,.7);
        }
        .cta-buttons .btn-outline-light:hover {
            background: #fff;
            color: var(--text);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,.7);
            padding: 60px 0 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255,255,255,.1);
        }
        @media (max-width: 992px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-dot {
            width: 24px;
            height: 24px;
            border-radius: 6px;
        }
        .footer-brand .brand-dot::after {
            inset: 6px;
        }
        .footer-desc {
            font-size: .88rem;
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,.65);
            font-size: .88rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: .82rem;
            color: rgba(255,255,255,.5);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        @media (max-width: 576px) {
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 50px;
            }
            .article-main {
                padding: 20px;
            }
            .sidebar-widget {
                padding: 20px;
            }
            .related-card .card-img-wrap {
                height: 180px;
            }
            .cta-buttons .btn {
                width: 100%;
                padding: 14px 20px;
            }
        }
        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1.05rem;
            }
            .brand-dot {
                width: 24px;
                height: 24px;
            }
            .page-banner .banner-title {
                font-size: 1.5rem;
            }
            .article-main {
                padding: 16px;
                border-radius: 12px;
            }
            .related-card .card-img-wrap {
                height: 160px;
            }
            .process-item {
                padding: 24px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --navy: #0c1a32;
            --navy-light: #16294d;
            --navy-deep: #071121;
            --cyan: #0fd3c7;
            --cyan-dark: #0bb3aa;
            --gold: #e8b44a;
            --bg: #f4f7fc;
            --white: #ffffff;
            --text: #14213d;
            --muted: #5a6c8c;
            --border: #dfe7f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 34px rgba(12, 26, 50, 0.08);
            --shadow-lg: 0 18px 48px rgba(12, 26, 50, 0.14);
            --spacer: 90px;
            --font-main: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        button,
        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 10px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--navy);
        }

        p {
            margin: 0 0 14px;
        }

        ul,
        ol {
            margin: 0 0 14px;
            padding-left: 20px;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(12, 26, 50, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-header .navbar {
            padding: 12px 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #fff;
            padding: 4px 0;
        }

        .navbar-brand:hover {
            color: #fff;
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--cyan), var(--gold));
            display: inline-block;
            flex: 0 0 auto;
            box-shadow: 0 0 0 3px rgba(15, 211, 199, 0.2);
        }

        .navbar-nav {
            padding-top: 8px;
            padding-bottom: 8px;
        }

        .nav-item {
            margin: 0 2px;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 30px;
            position: relative;
            transition: color 0.24s ease, background 0.24s ease;
        }

        .nav-link:hover {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: #fff !important;
            background: rgba(15, 211, 199, 0.14);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 2px;
            width: 18px;
            height: 3px;
            border-radius: 4px;
            background: var(--cyan);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, #2dd4bf 100%);
            color: #06222e;
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 30px;
            margin-left: 12px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            box-shadow: 0 4px 18px rgba(15, 211, 199, 0.3);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            color: #06222e;
            box-shadow: 0 8px 26px rgba(15, 211, 199, 0.42);
        }

        .navbar-toggler {
            border: none;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 8px 12px;
            color: #fff;
            font-size: 16px;
            line-height: 1;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(15, 211, 199, 0.4);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 112px 0 132px;
            color: #fff;
            background: linear-gradient(100deg, rgba(7, 17, 33, 0.95) 0%, rgba(12, 26, 50, 0.78) 52%, rgba(22, 41, 77, 0.42) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }

        .page-hero .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 7px 16px;
            border-radius: 30px;
            margin-bottom: 22px;
        }

        .page-hero h1 {
            color: #fff;
            font-size: 46px;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 18px;
            max-width: 640px;
        }

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

        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 560px;
            margin-bottom: 30px;
            line-height: 1.8;
        }

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

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--cyan), #2dd4bf);
            color: #06222e;
            font-weight: 700;
            font-size: 15px;
            padding: 13px 30px;
            border-radius: 30px;
            border: none;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            box-shadow: 0 6px 22px rgba(15, 211, 199, 0.3);
        }

        .btn-primary-custom:hover {
            transform: translateY(-3px);
            color: #06222e;
            box-shadow: 0 10px 32px rgba(15, 211, 199, 0.45);
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 13px 30px;
            border-radius: 30px;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-breadcrumb {
            margin-top: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        .hero-breadcrumb i {
            font-size: 11px;
            align-self: center;
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            position: relative;
            z-index: 2;
            margin-top: -56px;
            padding-bottom: 0;
        }

        .stats-card {
            background: var(--white);
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            padding: 30px 28px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            height: 100%;
        }

        .stats-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 22px 52px rgba(12, 26, 50, 0.16);
        }

        .stats-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--cyan);
            background: rgba(15, 211, 199, 0.12);
            margin-bottom: 16px;
        }

        .stats-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--navy);
            line-height: 1.2;
            margin-bottom: 4px;
        }

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

        /* ===== Section Common ===== */
        .section-padding {
            padding: var(--spacer) 0;
        }

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

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

        .section-head {
            margin-bottom: 44px;
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--cyan-dark);
            background: rgba(15, 211, 199, 0.1);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--navy);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            color: var(--muted);
            max-width: 620px;
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== News Grid ===== */
        .news-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: 0 4px 18px rgba(12, 26, 50, 0.05);
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
            height: 100%;
            display: block;
        }

        .news-card:hover {
            transform: translateY(-6px);
            border-color: rgba(15, 211, 199, 0.45);
            box-shadow: var(--shadow-lg);
        }

        .news-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

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

        .news-card:hover .news-card-img img {
            transform: scale(1.06);
        }

        .news-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(12, 26, 50, 0.82);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .news-body {
            padding: 22px 22px 24px;
        }

        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 12px;
            color: var(--navy);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 52px;
        }

        .news-body p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--muted);
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .news-meta i {
            color: var(--cyan);
            margin-right: 5px;
        }

        .news-meta .views i {
            margin-right: 4px;
        }

        /* ===== Topic Tags ===== */
        .topic-tags-section {
            background: var(--white);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: flex-start;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            color: var(--navy);
            transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease, color 0.25s ease;
        }

        .tag-item i {
            font-size: 13px;
            color: var(--cyan-dark);
        }

        .tag-item:hover {
            background: var(--navy);
            color: #fff;
            border-color: var(--navy);
            transform: translateY(-3px);
            box-shadow: 0 8px 22px rgba(12, 26, 50, 0.18);
        }

        .tag-item:hover i {
            color: var(--gold);
        }

        /* ===== Data Section ===== */
        .data-section {
            background: linear-gradient(135deg, #0c1a32 0%, #13284a 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .data-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .data-section .section-tag,
        .data-section .section-title,
        .data-section .section-desc {
            color: #fff;
            position: relative;
        }

        .data-section .section-tag {
            background: rgba(15, 211, 199, 0.2);
            color: var(--cyan);
        }

        .data-section .section-desc {
            color: rgba(255, 255, 255, 0.72);
        }

        .data-left {
            position: relative;
            padding-right: 40px;
        }

        .data-list {
            list-style: none;
            padding: 0;
            margin: 24px 0 0;
        }

        .data-list li {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 15px;
            align-items: flex-start;
            color: rgba(255, 255, 255, 0.85);
        }

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

        .data-list i {
            color: var(--cyan);
            font-size: 15px;
            margin-top: 5px;
            flex: 0 0 auto;
        }

        .data-list strong {
            color: #fff;
        }

        .data-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 22px;
            padding: 30px;
            position: relative;
            backdrop-filter: blur(10px);
        }

        .data-panel .panel-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 22px;
        }

        .data-panel .panel-head h4 {
            color: #fff;
            font-size: 17px;
            margin-bottom: 0;
        }

        .data-panel .badge-live {
            background: rgba(15, 211, 199, 0.2);
            color: var(--cyan);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 30px;
            letter-spacing: 0.5px;
        }

        .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .data-row:last-child {
            border-bottom: none;
        }

        .data-row .team {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 500;
        }

        .data-row .score {
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
        }

        .data-row .score span {
            color: rgba(255, 255, 255, 0.5);
            font-weight: 400;
        }

        .data-row .status {
            font-size: 12px;
            color: var(--gold);
            font-weight: 600;
            background: rgba(232, 180, 74, 0.14);
            padding: 4px 12px;
            border-radius: 20px;
        }

        /* ===== Insight Cards ===== */
        .insight-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 36px 30px;
            height: 100%;
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
            position: relative;
            overflow: hidden;
        }

        .insight-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--cyan), var(--gold));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .insight-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(15, 211, 199, 0.4);
        }

        .insight-card:hover::after {
            opacity: 1;
        }

        .insight-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(15, 211, 199, 0.12);
            color: var(--cyan-dark);
            font-size: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .insight-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }

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

        .accordion-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 16px !important;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: 0 4px 14px rgba(12, 26, 50, 0.04);
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--navy);
            padding: 20px 24px;
            background: var(--white);
            border: none;
        }

        .accordion-button:not(.collapsed) {
            color: var(--navy);
            background: rgba(15, 211, 199, 0.06);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(15, 211, 199, 0.2);
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230fd3c7'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
        }

        .accordion-body {
            padding: 8px 24px 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(120deg, rgba(7, 17, 33, 0.96) 0%, rgba(12, 26, 50, 0.86) 55%, rgba(22, 41, 77, 0.78) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
            position: relative;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 32px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #071121;
            color: rgba(255, 255, 255, 0.65);
            padding: 70px 0 26px;
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

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

        .footer-title {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --spacer: 74px;
            }

            .page-hero {
                padding: 96px 0 116px;
            }

            .page-hero h1 {
                font-size: 38px;
            }

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

            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacer: 58px;
            }

            .page-hero {
                padding: 70px 0 96px;
            }

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

            .hero-desc {
                font-size: 15px;
            }

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

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

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .data-left {
                padding-right: 0;
            }

            .data-panel {
                margin-top: 28px;
            }

            .navbar-collapse .nav-cta {
                margin-left: 0;
                margin-top: 10px;
                display: inline-flex;
                width: fit-content;
            }
        }

        @media (max-width: 520px) {
            .page-hero {
                padding: 56px 0 84px;
                text-align: left;
            }

            .page-hero h1 {
                font-size: 26px;
                line-height: 1.35;
            }

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

            .hero-actions {
                flex-direction: column;
            }

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

            .stats-bar {
                margin-top: -34px;
            }

            .stats-card {
                padding: 20px 14px;
                border-radius: 14px;
            }

            .stats-icon {
                width: 42px;
                height: 42px;
                font-size: 16px;
                border-radius: 12px;
            }

            .stats-number {
                font-size: 22px;
            }

            .stats-label {
                font-size: 12px;
            }

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

            .news-card-img {
                height: 150px;
            }

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

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

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn-primary-custom,
            .cta-actions .btn-outline-light-custom {
                justify-content: center;
                width: 100%;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1b3a5c;
            --primary-light: #2a5c8a;
            --accent: #d4a853;
            --accent-light: #e8c87a;
            --bg-soft: #f5f8fb;
            --bg-white: #ffffff;
            --text-main: #1e2a38;
            --text-weak: #6b7a8d;
            --border-line: #e5ebf1;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 20px rgba(27, 58, 92, 0.08);
            --shadow-hover: 0 12px 36px rgba(27, 58, 92, 0.14);
            --transition: all 0.3s ease;
            --nav-height: 72px;
            --spacer-section: 88px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background: var(--bg-white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

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

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

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

        .section-tag {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--accent);
            text-transform: uppercase;
            background: rgba(212, 168, 83, 0.1);
            border: 1px solid rgba(212, 168, 83, 0.3);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-weak);
            max-width: 640px;
            margin: 0 auto;
        }

        .btn {
            border-radius: 50px;
            font-weight: 600;
            padding: 12px 30px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #ffffff;
            border-color: var(--primary);
        }

        .btn-primary-custom:hover {
            background: var(--primary-light);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(27, 58, 92, 0.25);
        }

        .btn-accent-custom {
            background: var(--accent);
            color: #1e2a38;
            border-color: var(--accent);
        }

        .btn-accent-custom:hover {
            background: var(--accent-light);
            color: #1e2a38;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.35);
        }

        .btn-outline-light-custom {
            background: transparent;
            color: #ffffff;
            border-color: rgba(255, 255, 255, 0.7);
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            border-color: #ffffff;
        }

        .badge-custom {
            display: inline-block;
            background: rgba(27, 58, 92, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 30px;
            border: 1px solid rgba(27, 58, 92, 0.12);
        }

        .badge-accent {
            background: rgba(212, 168, 83, 0.12);
            color: #9a7b2e;
            border-color: rgba(212, 168, 83, 0.25);
        }

        /* ===== Header 导航 ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-line);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(27, 58, 92, 0.05);
        }

        .site-header .navbar {
            min-height: var(--nav-height);
            padding: 0;
        }

        .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            margin-right: 8px;
            vertical-align: middle;
        }

        .navbar-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .navbar-brand:hover {
            color: var(--primary-light);
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 16px !important;
            margin: 0 4px;
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(27, 58, 92, 0.04);
        }

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

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-block;
            background: var(--primary);
            color: #ffffff;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 26px;
            border-radius: 50px;
            margin-left: 20px;
            transition: var(--transition);
        }

        .nav-cta:hover {
            background: var(--primary-light);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(27, 58, 92, 0.25);
        }

        .navbar-toggler {
            border: none;
            font-size: 22px;
            color: var(--primary);
            padding: 4px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== Hero 内页横幅 ===== */
        .page-banner {
            background: linear-gradient(135deg, rgba(27, 58, 92, 0.92), rgba(42, 92, 138, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 72px 0 96px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::after {
            content: "";
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(212, 168, 83, 0.15);
            border-radius: 50%;
        }

        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner .banner-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 16px;
            display: block;
        }

        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .page-banner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 17px;
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .page-banner .banner-actions .btn {
            margin: 0 8px;
        }

        .breadcrumb-bar {
            background: var(--bg-soft);
            border-bottom: 1px solid var(--border-line);
            padding: 14px 0;
        }

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

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

        .breadcrumb-bar .breadcrumb-item.active {
            color: var(--text-weak);
        }

        /* ===== 服务概览卡片 ===== */
        .service-overview {
            background: var(--bg-white);
        }

        .overview-card {
            background: var(--bg-soft);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .overview-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--accent);
            transition: var(--transition);
        }

        .overview-card:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .overview-card:hover::before {
            height: 100%;
        }

        .overview-icon {
            width: 64px;
            height: 64px;
            background: rgba(27, 58, 92, 0.08);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 22px;
        }

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

        .overview-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 服务分类入口 ===== */
        .service-categories {
            background: var(--bg-soft);
        }

        .service-cat-card {
            background: var(--bg-white);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .service-cat-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .service-cat-cover {
            position: relative;
            height: 210px;
            overflow: hidden;
        }

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

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

        .service-cat-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(27, 58, 92, 0.5), transparent);
        }

        .service-cat-icon {
            position: absolute;
            bottom: 16px;
            left: 20px;
            width: 46px;
            height: 46px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            z-index: 2;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .service-cat-body {
            padding: 26px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-cat-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
        }

        .service-cat-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-top: 6px;
            margin-bottom: 10px;
        }

        .service-cat-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .service-cat-body .cat-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .service-cat-body .cat-link i {
            transition: transform 0.3s ease;
            font-size: 12px;
        }

        .service-cat-body .cat-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 服务流程 ===== */
        .service-process {
            background: var(--bg-white);
        }

        .process-step {
            background: var(--bg-soft);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            text-align: center;
            height: 100%;
            position: relative;
            transition: var(--transition);
        }

        .process-step:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .process-num {
            display: inline-block;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
            border-radius: 50%;
            line-height: 48px;
            margin-bottom: 20px;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .process-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            font-size: 18px;
            color: var(--accent);
            z-index: 2;
            transform: translateY(-50%);
        }

        /* ===== 常见问题 FAQ ===== */
        .faq-section {
            background: var(--bg-soft);
        }

        .faq-card {
            background: var(--bg-white);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-card:hover {
            border-color: rgba(27, 58, 92, 0.2);
            box-shadow: 0 4px 16px rgba(27, 58, 92, 0.06);
        }

        .faq-question {
            padding: 22px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            gap: 16px;
        }

        .faq-question h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0;
            transition: var(--transition);
        }

        .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-answer {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            padding-bottom: 24px;
            margin: 0;
        }

        .faq-card.active .faq-question h3 {
            color: var(--primary);
        }

        .faq-card.active .faq-question i {
            transform: rotate(180deg);
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 80px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 34px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 36px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #16283a;
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
        }

        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand .brand-dot {
            background: var(--accent);
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 12px;
            max-width: 320px;
        }

        .site-footer .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 18px;
        }

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

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

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

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

        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 22px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .container {
                max-width: 960px;
            }

            .section-title {
                font-size: 30px;
            }

            .page-banner h1 {
                font-size: 36px;
            }

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

            .process-arrow {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacer-section: 64px;
            }

            .section-title {
                font-size: 26px;
            }

            .section-subtitle {
                font-size: 15px;
            }

            .page-banner {
                padding: 56px 0 76px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

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

            .navbar-brand {
                font-size: 17px;
            }

            .navbar-collapse {
                background: var(--bg-white);
                padding: 16px;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-card);
                margin-top: 8px;
            }

            .navbar-nav .nav-link {
                padding: 12px 16px !important;
                border-radius: var(--radius-sm);
            }

            .navbar-nav .nav-link.active::after {
                left: 16px;
                transform: none;
                width: 20px;
            }

            .nav-cta {
                display: block;
                margin: 12px 0 0;
                text-align: center;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .section-padding {
                --spacer-section: 48px;
            }

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

            .page-banner {
                padding: 48px 0 64px;
            }

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

            .page-banner p {
                font-size: 14px;
                margin-bottom: 28px;
            }

            .page-banner .banner-actions .btn {
                display: block;
                width: 100%;
                margin: 10px 0;
            }

            .overview-card {
                padding: 28px 22px;
            }

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

            .faq-question h3 {
                font-size: 15px;
            }

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

            .cta-section .btn {
                display: block;
                width: 100%;
                margin: 8px 0;
            }
        }

        @media (min-width: 992px) {
            .navbar-nav .nav-link {
                padding: 8px 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2b6cff;
            --primary-dark: #1a4fd6;
            --primary-light: #eaf1ff;
            --secondary: #ffb800;
            --accent: #00c389;
            --dark: #0e1626;
            --body-bg: #f7f9fc;
            --card-bg: #ffffff;
            --text: #1c2430;
            --text-muted: #68738a;
            --border: #e6eaf2;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 10px 35px rgba(14, 22, 38, 0.08);
            --shadow-lg: 0 18px 50px rgba(14, 22, 38, 0.12);
            --transition: all .3s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-family);
            background: var(--body-bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        .container {
            max-width: 1200px;
        }

        /* ========== 导航 ========== */
        .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;
        }

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

        .navbar-brand {
            display: flex;
            align-items: center;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--dark) !important;
            letter-spacing: 0.02em;
            gap: 10px;
        }

        .brand-dot {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            box-shadow: 0 0 0 4px rgba(43, 108, 255, 0.15);
            flex-shrink: 0;
        }

        .navbar .navbar-nav {
            gap: 4px;
        }

        .navbar .nav-link {
            position: relative;
            padding: 8px 16px !important;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted) !important;
            border-radius: 20px;
            transition: var(--transition);
        }

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

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

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

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--dark);
            color: #fff !important;
            padding: 9px 22px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-left: 12px;
            transition: var(--transition);
        }

        .nav-cta:hover {
            background: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43, 108, 255, 0.25);
        }

        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            font-size: 1.2rem;
            color: var(--dark);
            border-radius: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
        }

        @media (max-width: 991px) {
            .site-header .navbar-collapse {
                margin-top: 12px;
                padding: 16px;
                background: #fff;
                border-radius: var(--radius-sm);
                box-shadow: var(--shadow);
            }
            .navbar .navbar-nav {
                gap: 2px;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 10px;
                display: inline-flex;
            }
        }

        /* ========== 页面Banner ========== */
        .page-banner {
            position: relative;
            padding: 90px 0 70px;
            background: linear-gradient(135deg, rgba(14, 22, 38, 0.85), rgba(30, 50, 80, 0.75)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
        }

        .page-banner .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 14px;
        }

        .page-banner .breadcrumb-line a {
            color: rgba(255, 255, 255, 0.7);
        }

        .page-banner .breadcrumb-line a:hover {
            color: #fff;
        }

        .page-banner h1 {
            font-size: 2.7rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }

        .page-banner h1 span {
            color: var(--secondary);
        }

        .page-banner p {
            font-size: 1.06rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin-bottom: 0;
        }

        /* ========== 通用区块 ========== */
        .section-block {
            padding: 80px 0;
        }

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

        .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .section-head .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 680px;
            margin-bottom: 0;
        }

        /* ========== 导览板块 ========== */
        .guide-intro {
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .intro-card {
            background: var(--body-bg);
            border-radius: var(--radius);
            padding: 30px;
            height: 100%;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .intro-card .intro-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            color: #fff;
        }

        .intro-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .intro-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ========== 知识卡片 ========== */
        .knowledge-grid {
            background: var(--body-bg);
        }

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

        .knowledge-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .knowledge-card .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

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

        .knowledge-card:hover .card-media img {
            transform: scale(1.06);
        }

        .knowledge-card .card-media .card-overlay {
            position: absolute;
            left: 12px;
            bottom: 12px;
            background: rgba(14, 22, 38, 0.75);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            backdrop-filter: blur(6px);
        }

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

        .knowledge-card h3 {
            font-size: 1.06rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .knowledge-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
        }

        .card-link i {
            transition: transform 0.3s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 步骤指南 ========== */
        .step-guide-section {
            background: var(--dark);
            color: #fff;
        }

        .step-guide-section .section-head h2 {
            color: #fff;
        }

        .step-guide-section .section-head .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .step-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 28px 24px;
            height: 100%;
            transition: var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-6px);
        }

        .step-num {
            font-size: 0.82rem;
            font-weight: 800;
            color: var(--secondary);
            background: rgba(255, 184, 0, 0.15);
            padding: 3px 12px;
            border-radius: 16px;
            display: inline-block;
            margin-bottom: 16px;
        }

        .step-item h4 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
        }

        /* ========== 内容列表 ========== */
        .article-list-section {
            background: #fff;
        }

        .article-item {
            display: flex;
            gap: 24px;
            padding: 26px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .article-item:last-child {
            border-bottom: none;
        }

        .article-item .article-content {
            flex: 1;
        }

        .article-item .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .article-item .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .article-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .article-item h3 a {
            color: var(--dark);
        }

        .article-item h3 a:hover {
            color: var(--primary);
        }

        .article-item .article-excerpt {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .badge-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            margin-right: 6px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--body-bg);
        }

        .accordion-custom {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            overflow: hidden;
            margin-bottom: 14px;
            background: #fff;
            box-shadow: 0 2px 10px rgba(14, 22, 38, 0.04);
        }

        .accordion-custom .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            padding: 18px 22px;
            background: #fff;
            box-shadow: none;
        }

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

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }

        .accordion-custom .accordion-button::after {
            background-size: 1rem;
            opacity: 0.65;
        }

        .accordion-custom .accordion-body {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--text-muted);
            background: #fff;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-section p {
            opacity: 0.9;
            margin-bottom: 24px;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary) !important;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 30px;
            transition: var(--transition);
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark) !important;
        }

        .cta-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff !important;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 30px;
            transition: var(--transition);
        }

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

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--dark);
            color: #aab2c5;
            padding: 60px 0 26px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 24px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 320px;
            color: #8a92a6;
        }

        .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: #8a92a6;
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            align-items: center;
            font-size: 0.8rem;
            color: #6b7285;
        }

        @media (max-width: 768px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-top>div:first-child {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                gap: 6px;
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .footer-top {
                grid-template-columns: 1fr;
            }
            .footer-top>div:first-child {
                grid-column: auto;
            }
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            .section-block {
                padding: 60px 0;
            }
            .page-banner {
                padding: 70px 0 54px;
            }
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .section-head h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .article-item {
                flex-direction: column;
                gap: 12px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section {
                padding: 48px 0;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.55rem;
            }
            .section-head h2 {
                font-size: 1.35rem;
            }
            .knowledge-card .card-body {
                padding: 18px;
            }
            .step-item {
                padding: 20px;
            }
            .intro-card {
                padding: 22px;
            }
        }

        /* 焦点可见性 */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(43, 108, 255, 0.5);
            outline-offset: 3px;
        }