/* roulang page: index */
:root {
            --primary: #4f46e5;
            --primary-600: #4338ca;
            --primary-700: #3730a3;
            --primary-100: #e0e7ff;
            --accent: #f59e0b;
            --accent-600: #d97706;
            --accent-100: #fef3c7;
            --dark: #0f172a;
            --dark-800: #1e293b;
            --dark-700: #334155;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-line: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
            --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
            --transition: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

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

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

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-head .section-tag {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-100);
            padding: 6px 18px;
            border-radius: 40px;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--dark);
            letter-spacing: -0.5px;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 10px 40px rgba(15, 23, 42, 0.25);
        }

        .site-header .navbar {
            padding: 14px 0;
            min-height: 72px;
        }

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

        .site-header .navbar-brand:hover {
            color: var(--accent);
        }

        .site-header .navbar-brand .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #7c3aed);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
        }

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

        .site-header .nav-link {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 40px;
            transition: all var(--transition);
        }

        .site-header .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.1);
        }

        .site-header .nav-link.active {
            color: #ffffff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
        }

        .header-cta .btn {
            padding: 9px 24px;
            border-radius: 40px;
            font-weight: 600;
        }

        .site-header .navbar-toggler {
            border-color: rgba(255, 255, 255, 0.2);
            padding: 4px 8px;
        }

        .site-header .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .site-header .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 130px 0 140px;
            color: #fff;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.62) 55%, rgba(79, 70, 229, 0.4) 100%);
        }

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

        .hero-section .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);
            border-radius: 40px;
            padding: 6px 18px;
            font-size: 14px;
            font-weight: 500;
            color: #f1f5f9;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-section h1 {
            font-size: 58px;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 18px;
            letter-spacing: -1px;
        }

        .hero-section h1 span {
            background: linear-gradient(90deg, var(--accent), #fcd34d);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-section .hero-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 700;
            border: none;
            transition: all var(--transition);
        }

        .btn-hero.btn-solid {
            background: var(--accent);
            color: #1e293b;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
        }

        .btn-hero.btn-solid:hover {
            background: #fbbf24;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(245, 158, 11, 0.5);
            color: #1e293b;
        }

        .btn-hero.btn-ghost {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(6px);
        }

        .btn-hero.btn-ghost:hover {
            background: rgba(255, 255, 255, 0.22);
            transform: translateY(-2px);
            color: #fff;
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 48px;
        }

        .hero-metrics .metric {
            padding-right: 30px;
            border-right: 1px solid rgba(255, 255, 255, 0.18);
        }

        .hero-metrics .metric:last-child {
            border-right: none;
        }

        .hero-metrics .metric .num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
        }

        .hero-metrics .metric .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== About ===== */
        .about-section {
            background: var(--bg-white);
        }

        .about-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .about-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .about-image .about-badge {
            position: absolute;
            bottom: 24px;
            left: 24px;
            padding: 10px 20px;
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(8px);
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
        }

        .about-content h3 {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 20px;
        }

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

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

        .about-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border-line);
            font-size: 15px;
            color: var(--text-main);
        }

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

        .about-list li i {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-100);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ===== Category Cards ===== */
        .category-section {
            background: var(--bg-light);
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: none;
            transition: all var(--transition);
            height: 100%;
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .category-card .cat-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

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

        .category-card .cat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-100);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .category-card:nth-child(2) .cat-icon {
            background: var(--accent-100);
            color: var(--accent-600);
        }

        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .category-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .category-card .btn-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--primary-100);
            background: var(--primary-100);
            padding: 7px 18px;
            border-radius: 40px;
            transition: all var(--transition);
        }

        .category-card:hover .btn-cat {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(79, 70, 229, 0.2);
            top: -150px;
            right: -100px;
            filter: blur(60px);
        }

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

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

        .stat-item {
            text-align: center;
            padding: 32px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-item .stat-icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .stat-item .stat-num {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            margin-top: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== News / CMS List ===== */
        .news-section {
            background: var(--bg-white);
        }

        .post-card {
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            background: var(--bg-white);
            height: 100%;
        }

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

        .post-card .post-thumb {
            height: 190px;
            overflow: hidden;
            background: var(--bg-light);
        }

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

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

        .post-card .card-body {
            padding: 24px;
        }

        .post-card .card-body .badge {
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 30px;
            display: inline-block;
            margin-bottom: 12px;
        }

        .badge.badge-news {
            background: var(--primary-100);
            color: var(--primary);
        }

        .post-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-line);
            padding-top: 14px;
        }

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

        .empty-state {
            padding: 60px 30px;
            text-align: center;
            border: 2px dashed var(--border-line);
            border-radius: var(--radius-md);
            background: var(--bg-light);
            color: var(--text-muted);
            font-size: 16px;
        }

        .empty-state i {
            font-size: 40px;
            color: #cbd5e1;
            display: block;
            margin-bottom: 16px;
        }

        /* ===== Process ===== */
        .process-section {
            background: var(--bg-light);
        }

        .process-step {
            text-align: center;
            padding: 30px 20px;
            position: relative;
        }

        .process-step .step-num {
            width: 60px;
            height: 60px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #7c3aed);
            color: #fff;
            font-size: 24px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
            position: relative;
            z-index: 2;
        }

        .process-step .step-icon {
            width: 40px;
            height: 40px;
            margin: 0 auto 14px;
            border-radius: 10px;
            background: var(--accent-100);
            color: var(--accent-600);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .process-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            color: #cbd5e1;
            font-size: 18px;
            z-index: 3;
        }

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

        .faq-section .accordion {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-section .accordion-item {
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-xs);
        }

        .faq-section .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            padding: 18px 24px;
            background: var(--bg-white);
            border: none;
        }

        .faq-section .accordion-button:not(.collapsed) {
            background: var(--primary-100);
            color: var(--primary);
            box-shadow: none;
        }

        .faq-section .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .faq-section .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%234f46e5'%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");
        }

        .faq-section .accordion-body {
            padding: 18px 24px 22px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            background: var(--bg-white);
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 100px 0;
            text-align: center;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(79, 70, 229, 0.72));
        }

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

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-light-cta {
            background: #fff;
            color: var(--dark);
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            border: none;
        }

        .btn-light-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            color: var(--dark);
        }

        .btn-outline-cta {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 12px 34px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }

        .btn-outline-cta:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 30px;
        }

        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #7c3aed);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 300px;
        }

        .site-footer .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            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: all var(--transition);
        }

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

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

        .site-footer .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
        }

        .site-footer .footer-contact i {
            color: var(--accent);
            width: 18px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-section h1 {
                font-size: 44px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stats-section .stat-item {
                padding: 24px 12px;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 72px 0;
            }

            .section-head h2 {
                font-size: 28px;
            }

            .hero-section {
                padding: 90px 0 100px;
            }

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

            .hero-section .hero-desc {
                font-size: 16px;
            }

            .hero-btns {
                flex-direction: column;
                align-items: stretch;
            }

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

            .hero-metrics {
                gap: 16px;
            }

            .hero-metrics .metric {
                padding-right: 16px;
            }

            .hero-metrics .metric .num {
                font-size: 22px;
            }

            .about-content {
                margin-top: 36px;
            }

            .about-content h3 {
                font-size: 26px;
            }

            .category-card .cat-img {
                height: 170px;
            }

            .process-arrow {
                display: none;
            }

            .process-step {
                padding: 16px;
                margin-bottom: 20px;
            }

            .process-step .step-num {
                width: 48px;
                height: 48px;
                font-size: 20px;
            }

            .cta-section {
                padding: 80px 0;
            }

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

            .cta-btns {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-light-cta,
            .btn-outline-cta {
                justify-content: center;
                text-align: center;
            }

            .site-footer {
                padding: 50px 0 20px;
            }

            .site-footer .footer-link-col {
                margin-top: 36px;
            }
        }

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

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

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

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

            .hero-badge {
                font-size: 12px;
                padding: 4px 14px;
            }

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

            .hero-metrics .metric {
                border-right: none;
                padding-right: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.15);
                padding-bottom: 12px;
            }

            .hero-metrics .metric:last-child {
                border-bottom: none;
            }

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

            .stats-section .stat-item {
                padding: 20px 16px;
            }

            .stat-item .stat-num {
                font-size: 30px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6C41D9;
            --primary-dark: #5530b0;
            --primary-light: #8f66e8;
            --secondary: #FF7A45;
            --secondary-dark: #e85d2a;
            --accent: #00C2A8;
            --dark: #1b1435;
            --darker: #150f2a;
            --bg-light: #f7f5fd;
            --bg-white: #ffffff;
            --text-main: #2c2440;
            --text-body: #5a5270;
            --text-muted: #8b84a0;
            --border-color: #e8e4f2;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(30, 18, 66, .06);
            --shadow-md: 0 8px 30px rgba(30, 18, 66, .08);
            --shadow-lg: 0 20px 50px rgba(30, 18, 66, .12);
            --transition: all .3s ease;
            --font-scale: 1;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: calc(16px * var(--font-scale));
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            color: var(--text-body);
            background-color: var(--bg-white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        :focus-visible {
            outline: 3px solid rgba(108, 65, 217, .4);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--transition);
            box-shadow: 0 1px 12px rgba(30, 18, 66, .03);
        }
        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(30, 18, 66, .08);
        }
        .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: .5px;
        }
        .navbar-brand:hover {
            color: var(--primary);
        }
        .brand-icon {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 12px;
            font-size: 1.2rem;
            box-shadow: 0 4px 14px rgba(108, 65, 217, .28);
        }
        .navbar-nav {
            gap: 6px;
        }
        .nav-link {
            font-weight: 600;
            font-size: .95rem;
            color: var(--text-body);
            padding: 8px 18px !important;
            border-radius: 30px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--primary);
            background: rgba(108, 65, 217, .08);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary);
        }
        .header-cta .btn {
            border-radius: 30px;
            font-weight: 600;
        }
        .navbar-toggler {
            border: none;
            border-radius: 10px;
            padding: 6px 10px;
            background: rgba(108, 65, 217, .08);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
        }

        /* ===== 通用按钮 ===== */
        .btn {
            border-radius: 30px;
            font-weight: 600;
            padding: 10px 24px;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(108, 65, 217, .25);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(108, 65, 217, .35);
        }
        .btn-outline-custom {
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background: transparent;
            border-radius: 30px;
        }
        .btn-outline-custom:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(108, 65, 217, .25);
        }
        .btn-light-custom {
            background: #fff;
            color: var(--dark);
            border: none;
            box-shadow: var(--shadow-sm);
        }
        .btn-light-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: var(--primary);
        }

        /* ===== 页面 Banner ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(21, 15, 42, .92), rgba(108, 65, 217, .78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 110px 0 90px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -40px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 122, 69, .18);
            filter: blur(80px);
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, .15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 30px;
            padding: 5px 18px;
            font-size: .85rem;
            letter-spacing: 1px;
            margin-bottom: 20px;
            color: #fff;
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, .3);
        }
        .page-hero p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .9);
            max-width: 720px;
            margin: 0 auto 28px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
            padding: 14px 0;
        }
        .breadcrumb-bar .breadcrumb {
            margin: 0;
        }
        .breadcrumb-bar .breadcrumb-item a {
            color: var(--text-muted);
            font-size: .9rem;
        }
        .breadcrumb-bar .breadcrumb-item a:hover {
            color: var(--primary);
        }
        .breadcrumb-bar .breadcrumb-item.active {
            color: var(--dark);
            font-weight: 600;
        }

        /* ===== 板块 ===== */
        .section-block {
            padding: 90px 0;
        }
        .section-block.bg-light {
            background: var(--bg-light);
        }
        .section-heading {
            text-align: center;
            margin-bottom: 56px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-heading .subtitle {
            display: inline-block;
            font-size: .85rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(108, 65, 217, .08);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 16px;
        }
        .section-heading h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 14px;
        }
        .section-heading p {
            color: var(--text-body);
            font-size: 1rem;
        }

        /* ===== 入口方式卡片 ===== */
        .guide-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .guide-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(108, 65, 217, .2);
        }
        .guide-card:hover::before {
            opacity: 1;
        }
        .guide-card .icon-wrap {
            width: 74px;
            height: 74px;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 22px;
            font-size: 1.7rem;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            box-shadow: 0 8px 20px rgba(108, 65, 217, .3);
        }
        .guide-card:nth-child(2) .icon-wrap {
            background: linear-gradient(135deg, var(--secondary), #ffa07a);
            box-shadow: 0 8px 20px rgba(255, 122, 69, .3);
        }
        .guide-card:nth-child(3) .icon-wrap {
            background: linear-gradient(135deg, var(--accent), #00e0c8);
            box-shadow: 0 8px 20px rgba(0, 194, 168, .3);
        }
        .guide-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .guide-card p {
            font-size: .9rem;
            color: var(--text-body);
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .guide-card .card-tag {
            display: inline-block;
            background: rgba(108, 65, 217, .08);
            color: var(--primary);
            border-radius: 20px;
            padding: 4px 14px;
            font-size: .8rem;
            font-weight: 600;
        }
        .guide-card .card-tag.orange {
            background: rgba(255, 122, 69, .12);
            color: var(--secondary-dark);
        }
        .guide-card .card-tag.teal {
            background: rgba(0, 194, 168, .1);
            color: #009582;
        }

        /* ===== 步骤流程 ===== */
        .steps-section {
            background: var(--dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .steps-section::before {
            content: "";
            position: absolute;
            top: -100px;
            left: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(108, 65, 217, .2);
            filter: blur(100px);
        }
        .steps-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 122, 69, .15);
            filter: blur(80px);
        }
        .steps-section .section-heading h2 {
            color: #fff;
        }
        .steps-section .section-heading p {
            color: rgba(255, 255, 255, .7);
        }
        .steps-section .section-heading .subtitle {
            background: rgba(255, 255, 255, .12);
            color: #fff;
        }
        .steps-wrapper {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 2;
        }
        .step-item {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .step-item:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-4px);
        }
        .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 6px 16px rgba(108, 65, 217, .4);
        }
        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .step-item p {
            font-size: .85rem;
            color: rgba(255, 255, 255, .7);
            line-height: 1.6;
        }
        .step-arrow {
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, .3);
            font-size: 1.2rem;
            z-index: 3;
        }
        .steps-wrapper .step-item {
            position: relative;
        }

        /* ===== 内容列表 ===== */
        .content-list-section {
            background: var(--bg-light);
        }
        .content-list-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .content-list-item {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .content-list-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(108, 65, 217, .15);
        }
        .content-list-item .list-icon {
            flex: 0 0 52px;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(108, 65, 217, .08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .content-list-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .content-list-item p {
            font-size: .9rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 图片图文区块 ===== */
        .feature-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .feature-split .text-side .subtitle {
            display: inline-block;
            font-size: .85rem;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--primary);
            background: rgba(108, 65, 217, .08);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 14px;
        }
        .feature-split .text-side h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .feature-split .text-side p {
            color: var(--text-body);
            margin-bottom: 18px;
        }
        .feature-list {
            margin-top: 20px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            color: var(--text-body);
            font-size: .95rem;
        }
        .feature-list li i {
            margin-top: 4px;
            color: var(--accent);
        }
        .image-side {
            position: relative;
        }
        .image-side .img-main {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
            min-height: 380px;
        }
        .image-side .img-float {
            position: absolute;
            bottom: -24px;
            left: -24px;
            background: var(--dark);
            color: #fff;
            border-radius: var(--radius-md);
            padding: 18px 24px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .image-side .img-float i {
            font-size: 1.6rem;
            color: var(--secondary);
        }
        .image-side .img-float strong {
            display: block;
            font-size: 1.1rem;
            line-height: 1.3;
        }
        .image-side .img-float span {
            font-size: .8rem;
            color: rgba(255, 255, 255, .7);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--darker), var(--dark));
            color: #fff;
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: .1;
            border-radius: 50%;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            position: relative;
            z-index: 2;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-item .stat-num span {
            color: var(--secondary);
            font-size: 2rem;
            margin-left: 4px;
        }
        .stat-item p {
            color: rgba(255, 255, 255, .6);
            font-size: .95rem;
            margin-top: 8px;
            letter-spacing: 1px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 20px 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--dark);
            font-size: 1rem;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .icon-faq {
            flex: 0 0 28px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(108, 65, 217, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .85rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item.open .faq-question {
            color: var(--primary);
        }
        .faq-item.open .faq-question .icon-faq {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 26px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
            color: var(--text-body);
            font-size: .92rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            color: #fff;
            position: relative;
            overflow: hidden;
            text-align: center;
            margin: 90px 0;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .1);
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }
        .cta-section p {
            color: rgba(255, 255, 255, .85);
            margin-bottom: 28px;
            position: relative;
            z-index: 2;
            font-size: 1rem;
        }
        .cta-section .btn-white {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: 30px;
            font-weight: 700;
            padding: 12px 32px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }
        .cta-section .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .3);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--darker);
            color: #a09bb8;
            padding: 70px 0 0;
            position: relative;
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }
        .site-footer .footer-brand .brand-icon {
            width: 40px;
            height: 40px;
            font-size: 1rem;
        }
        .footer-desc {
            font-size: .9rem;
            line-height: 1.8;
            color: #8a84a0;
            max-width: 320px;
        }
        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 26px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary);
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #8a84a0;
            font-size: .9rem;
            display: inline-block;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            transform: translateX(4px);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: .9rem;
            color: #8a84a0;
        }
        .footer-contact i {
            color: var(--primary-light);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 20px 0;
            margin-top: 50px;
            text-align: center;
            color: #6a6480;
            font-size: .85rem;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-cards {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .steps-wrapper {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            .page-hero h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .site-header .navbar-collapse {
                background: #fff;
                border-radius: 14px;
                margin-top: 12px;
                padding: 16px;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--border-color);
            }
            .site-header .nav-link {
                border-radius: 8px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                border-left: 3px solid var(--primary);
            }
            .page-hero {
                padding: 80px 0 60px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .section-block {
                padding: 60px 0;
            }
            .section-heading h2 {
                font-size: 1.6rem;
            }
            .guide-cards {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .content-list-wrapper {
                grid-template-columns: 1fr;
            }
            .feature-split {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .image-side .img-float {
                left: 12px;
                bottom: -20px;
            }
            .steps-wrapper {
                grid-template-columns: 1fr;
                max-width: 380px;
                margin: 0 auto;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                padding: 40px 24px;
                margin: 60px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-link-col {
                margin-bottom: 30px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .page-hero {
                padding: 60px 0 50px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .navbar-brand {
                font-size: 1.15rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
            }
            .section-heading h2 {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .content-list-item {
                padding: 20px;
            }
            .feature-split .text-side h2 {
                font-size: 1.5rem;
            }
            .image-side .img-float {
                padding: 12px 16px;
                bottom: -14px;
                left: 8px;
            }
            .image-side .img-float i {
                font-size: 1.2rem;
            }
            .image-side .img-float strong {
                font-size: .9rem;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c4df6;
            --primary-dark: #5130d8;
            --primary-light: #8f75ff;
            --accent: #ffb548;
            --accent-soft: #fff3df;
            --bg-body: #f6f7fc;
            --bg-white: #ffffff;
            --bg-deep: #171a2e;
            --bg-soft: #eef0fa;
            --text-main: #262a3f;
            --text-body: #4a4f66;
            --text-weak: #8a90a8;
            --border: #e3e6f2;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 16px rgba(38, 42, 63, 0.06);
            --shadow-md: 0 10px 32px rgba(38, 42, 63, 0.1);
            --shadow-lg: 0 20px 48px rgba(38, 42, 63, 0.14);
            --grad-primary: linear-gradient(135deg, #6c4df6 0%, #9b7bff 100%);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-pad: 24px;
        }

        /* ===== 基础 reset / base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        img.cover-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            padding-left: 0;
            list-style: none;
            margin-bottom: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-main);
            line-height: 1.3;
            font-weight: 700;
            margin-top: 0;
        }
        p {
            margin-top: 0;
        }
        .container {
            max-width: 1240px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(38, 42, 63, 0.04);
        }
        .site-header .navbar {
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }
        .navbar-brand:hover {
            color: var(--primary);
        }
        .brand-icon {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--grad-primary);
            color: #fff;
            border-radius: 12px;
            font-size: 1.2rem;
            box-shadow: 0 6px 16px rgba(108, 77, 246, 0.28);
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 9px 20px !important;
            border-radius: 999px;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .navbar-nav .nav-link.active {
            color: #fff;
            background: var(--grad-primary);
            box-shadow: 0 6px 16px rgba(108, 77, 246, 0.3);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            box-shadow: none !important;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(38,42,63,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
        }
        .header-cta .btn {
            border-radius: 999px;
            padding: 9px 24px;
            font-weight: 600;
            border: none;
            background: var(--grad-primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(108, 77, 246, 0.28);
            transition: var(--transition);
        }
        .header-cta .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(108, 77, 246, 0.36);
        }

        /* ===== 常规按钮 ===== */
        .btn {
            border-radius: 999px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
        }
        .btn-primary {
            background: var(--grad-primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(108, 77, 246, 0.26);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(108, 77, 246, 0.36);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            border-radius: 999px;
            padding: 10px 28px;
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #262a3f;
            box-shadow: 0 6px 18px rgba(255, 181, 72, 0.3);
        }
        .btn-accent:hover {
            background: #ffa51f;
            color: #262a3f;
            transform: translateY(-2px);
        }
        .btn:focus,
        .btn:active {
            box-shadow: 0 0 0 4px rgba(108, 77, 246, 0.18);
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            background: linear-gradient(135deg, rgba(23, 26, 46, 0.92) 0%, rgba(108, 77, 246, 0.82) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 90px 0 90px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }
        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
        }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 0.86rem;
            font-weight: 500;
            backdrop-filter: blur(6px);
            margin-bottom: 18px;
        }
        .page-banner h1 {
            font-size: 2.7rem;
            color: #fff;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .page-banner .lead {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.12rem;
            max-width: 680px;
            line-height: 1.8;
        }

        /* ===== 板块通用 ===== */
        .section-pad {
            padding: 72px 0;
        }
        .section-head {
            margin-bottom: 42px;
        }
        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.86rem;
            letter-spacing: 1px;
            text-transform: uppercase;
            background: var(--bg-soft);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .section-head p {
            color: var(--text-weak);
            max-width: 560px;
            font-size: 1rem;
        }
        .section-head.text-center p {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 高亮推荐资讯 ===== */
        .featured-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-deep);
            height: 100%;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .featured-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .featured-card .featured-img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .featured-img {
            transform: scale(1.05);
        }
        .featured-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 0%, rgba(23, 26, 46, 0.5) 55%, rgba(23, 26, 46, 0.95) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px;
        }
        .featured-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 10px;
        }
        .featured-meta .badge-primary {
            background: var(--accent);
            color: #262a3f;
            font-weight: 600;
            border-radius: 999px;
            padding: 6px 14px;
        }
        .featured-meta .date {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.84rem;
        }
        .featured-overlay h3 {
            color: #fff;
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .featured-overlay p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 0.92rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .featured-link:hover {
            color: #fff;
            gap: 10px;
        }

        /* ===== 资讯卡片 ===== */
        .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .news-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
        }
        .news-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .news-card .card-img-wrap .category-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.94);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 13px;
            border-radius: 999px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }
        .news-card .card-body {
            padding: 24px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.45;
        }
        .news-card .card-body h3 a {
            color: var(--text-main);
        }
        .news-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .news-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-footer-line {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: 4px;
        }
        .news-card .card-footer-line .date {
            font-size: 0.82rem;
            color: var(--text-weak);
        }
        .news-card .card-footer-line .read-more {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-card .card-footer-line .read-more:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* ===== 热点速览 ===== */
        .hot-zone {
            background: var(--bg-deep);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }
        .hot-zone::before {
            content: '';
            position: absolute;
            right: -100px;
            top: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(108, 77, 246, 0.25);
        }
        .hot-zone .row {
            position: relative;
            z-index: 2;
        }
        .hot-zone h2 {
            color: #fff;
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .hot-zone .sub-text {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
        }
        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-rank {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .hot-list li:hover .hot-rank {
            background: var(--accent);
            color: #262a3f;
        }
        .hot-list .hot-title {
            color: rgba(255, 255, 255, 0.92);
            font-weight: 500;
            font-size: 0.98rem;
            line-height: 1.5;
            display: block;
            transition: var(--transition);
        }
        .hot-list li:hover .hot-title {
            color: var(--accent);
        }
        .hot-list .hot-desc {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.8rem;
            margin-top: 4px;
        }

        /* ===== 数据统计 ===== */
        .stats-wrap {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 24px;
            box-shadow: var(--shadow-sm);
        }
        .stats-wrap .stat-item {
            text-align: center;
            padding: 12px 8px;
            position: relative;
        }
        .stats-wrap .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 24%;
            height: 52%;
            width: 1px;
            background: var(--border);
        }
        .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-soft);
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .stat-number {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
        }
        .stat-label {
            color: var(--text-weak);
            font-size: 0.9rem;
            margin-top: 4px;
        }

        /* ===== 主题标签云 ===== */
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 10px;
        }
        .topic-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 10px 22px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-body);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .topic-chip i {
            color: var(--primary);
        }
        .topic-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        /* ===== FAQ ===== */
        .faq-zone {
            background: var(--bg-soft);
            border-radius: var(--radius-lg);
            padding: 56px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-item:last-child {
            margin-bottom: 0;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateY(-2px);
        }
        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-item h4::before {
            content: 'Q';
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--grad-primary);
            color: #fff;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 700;
        }
        .faq-item p {
            color: var(--text-body);
            font-size: 0.95rem;
            padding-left: 38px;
            margin-bottom: 0;
        }

        /* ===== CTA 区 ===== */
        .cta-zone {
            background: var(--grad-primary);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            position: relative;
            overflow: hidden;
        }
        .cta-zone::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }
        .cta-zone h2 {
            color: #fff;
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-zone p {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
        }
        .cta-zone .btn-light {
            background: #fff;
            color: var(--primary);
            border-radius: 999px;
            padding: 12px 32px;
            font-weight: 600;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
            transition: var(--transition);
        }
        .cta-zone .btn-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 26px rgba(0, 0, 0, 0.18);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .brand-icon {
            width: 40px;
            height: 40px;
            font-size: 1.05rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 0;
            padding-right: 12px;
        }
        .footer-title {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links,
        .footer-contact {
            padding: 0;
            margin: 0;
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-contact i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .featured-card .featured-img {
                height: 350px;
            }
            .hot-zone {
                padding: 40px 28px;
            }
            .faq-zone {
                padding: 36px 24px;
            }
            .cta-zone {
                padding: 44px 28px;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 52px 0;
            }
            .page-banner {
                padding: 60px 0;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .lead {
                font-size: 0.98rem;
            }
            .navbar-collapse {
                padding: 16px 0 8px;
            }
            .navbar-nav {
                gap: 6px;
                margin-bottom: 12px;
            }
            .navbar-nav .nav-link {
                text-align: center;
                padding: 10px 16px !important;
            }
            .header-cta {
                text-align: center;
                margin-bottom: 8px;
            }
            .section-head h2 {
                font-size: 1.55rem;
            }
            .featured-card .featured-img {
                height: 300px;
            }
            .featured-overlay {
                padding: 22px;
            }
            .featured-overlay h3 {
                font-size: 1.25rem;
            }
            .news-card .card-img-wrap {
                height: 180px;
            }
            .stats-wrap .stat-item:not(:last-child)::after {
                display: none;
            }
            .stats-wrap {
                padding: 24px 16px;
            }
            .hot-zone {
                border-radius: var(--radius-md);
            }
            .faq-item {
                padding: 18px 16px;
            }
            .faq-item p {
                padding-left: 0;
                margin-top: 8px;
            }
            .cta-zone {
                padding: 36px 22px;
                border-radius: var(--radius-md);
            }
            .cta-zone h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.55rem;
            }
            .page-banner .lead {
                font-size: 0.92rem;
            }
            .banner-tag {
                font-size: 0.78rem;
                padding: 5px 12px;
            }
            .featured-card .featured-img {
                height: 250px;
            }
            .featured-overlay {
                padding: 16px;
            }
            .featured-overlay h3 {
                font-size: 1.1rem;
            }
            .section-head h2 {
                font-size: 1.35rem;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .topic-chip {
                padding: 8px 15px;
                font-size: 0.84rem;
            }
            .hot-zone .sub-text {
                font-size: 0.84rem;
            }
            .footer-brand {
                font-size: 1.15rem;
            }
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --primary: #3b5bfd;
            --primary-dark: #2d47d4;
            --primary-light: #6f8afe;
            --accent: #ff6b35;
            --accent-dark: #e8562a;
            --accent-light: #ff8d5c;
            --dark: #1e2148;
            --dark-2: #262a5c;
            --body-bg: #f4f6fb;
            --card-bg: #ffffff;
            --text: #1f2340;
            --text-muted: #6b7a99;
            --border: #e6eaf2;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(30, 33, 72, 0.06);
            --shadow: 0 8px 24px rgba(30, 33, 72, 0.10);
            --shadow-lg: 0 16px 40px rgba(30, 33, 72, 0.14);
            --transition: all 0.3s ease;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--body-bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
        }

        /* ========== 按钮 ========== */
        .btn {
            border-radius: 12px;
            font-weight: 600;
            padding: 10px 24px;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(59, 91, 253, 0.30);
            color: #fff;
        }
        .btn-cta {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            border-radius: 14px;
            padding: 14px 36px;
            font-weight: 700;
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.32);
        }
        .btn-cta:hover,
        .btn-cta:focus {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 107, 53, 0.40);
        }
        .btn-light {
            background: #fff;
            border-color: #fff;
            color: var(--dark);
            border-radius: 10px;
            font-weight: 600;
        }
        .btn-light:hover {
            background: var(--border);
            border-color: var(--border);
            color: var(--dark);
        }
        .btn:focus,
        .btn:active:focus {
            box-shadow: 0 0 0 4px rgba(59, 91, 253, 0.18);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(30, 33, 72, 0.04);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 900;
            font-size: 1.35rem;
            color: var(--dark) !important;
            letter-spacing: 0.01em;
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 6px 16px rgba(59, 91, 253, 0.28);
        }
        .navbar-nav {
            gap: 6px;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--text);
            padding: 9px 18px !important;
            border-radius: 10px;
            font-size: 0.95rem;
            position: relative;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(59, 91, 253, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(59, 91, 253, 0.10);
            font-weight: 700;
        }
        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 18px;
            right: 18px;
            height: 2px;
            border-radius: 4px;
            background: var(--primary);
        }
        .header-cta {
            margin-left: 8px;
        }
        .header-cta .btn {
            padding: 8px 20px;
            border-radius: 10px;
            font-size: 0.9rem;
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 6px 12px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(59, 91, 253, 0.15);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23262a5c' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== 页面横幅 ========== */
        .page-banner {
            position: relative;
            padding: 88px 0 72px;
            background-size: cover;
            background-position: center;
            color: #fff;
            isolation: isolate;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(120deg, rgba(20, 24, 60, 0.88) 0%, rgba(38, 42, 92, 0.72) 55%, rgba(59, 91, 253, 0.55) 100%);
            backdrop-filter: blur(2px);
        }
        .page-banner .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 18px;
            --bs-breadcrumb-divider-color: rgba(255, 255, 255, 0.6);
        }
        .page-banner .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }
        .page-banner .breadcrumb-item a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb-item.active {
            color: rgba(255, 255, 255, 0.9);
        }
        .page-banner h1 {
            font-size: 2.4rem;
            font-weight: 900;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            line-height: 1.35;
            color: #fff;
        }
        .page-banner-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 720px;
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* ========== 文章正文区 ========== */
        .article-section {
            padding: 70px 0 80px;
        }
        .article-main-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 40px 42px;
            margin-bottom: 40px;
            transition: var(--transition);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }
        .badge-cat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(59, 91, 253, 0.22);
        }
        .article-date {
            color: var(--text-muted);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 28px;
            box-shadow: var(--shadow-sm);
        }
        .article-cover img {
            width: 100%;
            object-fit: cover;
            display: block;
        }
        .article-content {
            font-size: 1.02rem;
            line-height: 2;
            color: #333a56;
        }
        .article-content h2 {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--dark);
            margin-top: 34px;
            margin-bottom: 14px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            border-radius: 2px;
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--dark);
            margin-top: 26px;
            margin-bottom: 10px;
        }
        .article-content p {
            margin-bottom: 18px;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 6px;
        }
        .article-content img {
            border-radius: 14px;
            box-shadow: var(--shadow);
            margin: 20px 0;
        }
        .article-content blockquote {
            background: rgba(59, 91, 253, 0.06);
            border-left: 4px solid var(--primary);
            border-radius: 0 12px 12px 0;
            padding: 16px 22px;
            margin: 24px 0;
            color: var(--text);
            font-style: italic;
        }
        .article-content a {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 1px solid rgba(59, 91, 253, 0.30);
        }
        .article-content a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary);
        }
        .article-tags {
            margin-top: 32px;
            padding-top: 22px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #f0f3fb;
            border: 1px solid var(--border);
            color: var(--text-muted);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.82rem;
            transition: var(--transition);
        }
        .tag-item:hover {
            background: rgba(59, 91, 253, 0.08);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ========== 文章未找到 ========== */
        .article-not-found {
            text-align: center;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 70px 40px;
        }
        .not-found-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 24px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(59, 91, 253, 0.12), rgba(255, 107, 53, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--primary);
        }
        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 26px;
        }

        /* ========== 侧边栏 ========== */
        .sidebar-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            margin-bottom: 24px;
            transition: var(--transition);
        }
        .sidebar-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        .sidebar-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 18px;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-title i {
            color: var(--primary);
        }
        .latest-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .latest-list li {
            border-bottom: 1px dashed var(--border);
            padding: 12px 0;
            transition: var(--transition);
        }
        .latest-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .latest-list a {
            display: block;
            color: var(--text);
        }
        .latest-title {
            display: block;
            font-weight: 600;
            font-size: 0.92rem;
            line-height: 1.5;
            margin-bottom: 4px;
            transition: var(--transition);
        }
        .latest-list a:hover .latest-title {
            color: var(--primary);
        }
        .latest-meta {
            color: var(--text-muted);
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .sidebar-empty {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        .category-side-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .category-side-list li {
            margin-bottom: 8px;
        }
        .category-side-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 10px;
            background: #f8f9fd;
            border: 1px solid transparent;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .category-side-list a:hover {
            background: rgba(59, 91, 253, 0.06);
            border-color: rgba(59, 91, 253, 0.20);
            color: var(--primary);
            transform: translateX(4px);
        }
        .category-side-list a i {
            color: var(--primary);
            width: 20px;
            text-align: center;
        }
        .sidebar-card-dark {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            border: none;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .sidebar-card-dark::before {
            content: "";
            position: absolute;
            right: -30px;
            top: -30px;
            width: 120px;
            height: 120px;
            background: rgba(59, 91, 253, 0.3);
            border-radius: 50%;
        }
        .sidebar-cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 10px 4px;
        }
        .sidebar-cta-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            color: var(--accent-light);
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .sidebar-cta-inner h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .sidebar-cta-inner p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 20px 0 70px;
        }
        .related-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .related-header h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--dark);
            position: relative;
            padding-left: 18px;
        }
        .related-header h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 5px;
            border-radius: 6px;
            background: linear-gradient(180deg, var(--primary), var(--accent));
        }
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: block;
            margin-bottom: 22px;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(59, 91, 253, 0.25);
        }
        .related-card .related-cover {
            overflow: hidden;
            height: 160px;
            position: relative;
        }
        .related-card .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .related-card:hover .related-cover img {
            transform: scale(1.06);
        }
        .related-card .related-body {
            padding: 18px 20px 20px;
        }
        .related-card .related-cat {
            display: inline-block;
            background: rgba(59, 91, 253, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 30px;
            margin-bottom: 10px;
        }
        .related-card .related-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .related-card:hover .related-title {
            color: var(--primary);
        }
        .related-card .related-date {
            color: var(--text-muted);
            font-size: 0.78rem;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--dark) 0%, #141738 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(59, 91, 253, 0.25);
            filter: blur(60px);
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.15);
            filter: blur(50px);
        }
        .cta-inner {
            position: relative;
            z-index: 1;
        }
        .cta-inner h2 {
            color: #fff;
            font-weight: 800;
            font-size: 1.7rem;
            margin-bottom: 10px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.66);
            max-width: 580px;
            font-size: 0.98rem;
            margin-bottom: 0;
        }
        .cta-inner .btn-cta {
            background: var(--accent);
            border-color: var(--accent);
            font-size: 1rem;
            padding: 14px 34px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #13152f;
            color: rgba(255, 255, 255, 0.65);
            padding: 70px 0 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .brand-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }
        .footer-desc {
            font-size: 0.88rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 20px;
        }
        .footer-title {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 26px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-contact li i {
            color: var(--accent-light);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 46px;
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom p {
            margin: 0;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.82rem;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .page-banner {
                padding: 60px 0 50px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .navbar-nav {
                padding: 16px 0;
                gap: 4px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                border-radius: 8px;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .header-cta {
                margin: 12px 0 4px;
            }
            .article-main-card {
                padding: 30px;
            }
            .related-card .related-cover {
                height: 140px;
            }
        }
        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner-desc {
                font-size: 0.95rem;
            }
            .article-section {
                padding: 40px 0 50px;
            }
            .article-main-card {
                padding: 22px 20px;
                border-radius: 18px;
            }
            .article-meta {
                gap: 12px;
                margin-bottom: 18px;
                padding-bottom: 16px;
            }
            .article-content {
                font-size: 0.97rem;
            }
            .article-content h2 {
                font-size: 1.25rem;
            }
            .sidebar-card {
                padding: 20px;
            }
            .related-header h2 {
                font-size: 1.25rem;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-inner h2 {
                font-size: 1.35rem;
            }
            .cta-inner .btn-cta {
                margin-top: 14px;
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .site-footer {
                padding-top: 50px;
            }
            .footer-link-col {
                margin-bottom: 26px;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                padding: 42px 0 38px;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .article-main-card {
                padding: 18px 15px;
            }
            .article-cover {
                margin-bottom: 18px;
            }
            .badge-cat {
                font-size: 0.78rem;
                padding: 5px 12px;
            }
            .article-date {
                font-size: 0.8rem;
            }
            .related-card .related-cover {
                height: 120px;
            }
            .navbar-brand {
                font-size: 1.1rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .footer-title {
                font-size: 0.9rem;
            }
        }