/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #e8b830;
            --accent-light: #f0d060;
            --accent-dark: #c99a20;
            --bg-light: #f8f9fc;
            --bg-dark: #0f1a2e;
            --text-dark: #1a1a2e;
            --text-muted: #6b7a8f;
            --text-light: #f0f2f5;
            --border-light: #e2e6ef;
            --border-accent: rgba(232, 184, 48, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-glow: 0 0 30px rgba(232, 184, 48, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-light);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
        }
        p {
            margin-bottom: 0;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== 玻璃导航 ===== */
        .navbar-glass {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border-bottom: 1px solid rgba(255, 255, 255, 0.25);
            box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .navbar-glass.scrolled {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-glass .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            letter-spacing: -0.3px;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-glass .navbar-brand i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .navbar-glass .navbar-brand span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-glass .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-dark) !important;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-glass .nav-link:hover,
        .navbar-glass .nav-link:focus {
            color: var(--primary) !important;
            background: rgba(26, 42, 108, 0.06);
        }
        .navbar-glass .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }
        .navbar-glass .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1rem;
            right: 1rem;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .navbar-glass .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 0.5rem 1.4rem !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.25);
        }
        .navbar-glass .nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26, 42, 108, 0.3);
            color: #fff !important;
        }
        .navbar-glass .navbar-toggler {
            border: none;
            padding: 0;
            font-size: 1.5rem;
            color: var(--primary);
            background: transparent;
        }
        .navbar-glass .navbar-toggler:focus {
            box-shadow: none;
        }
        @media (max-width: 991.98px) {
            .navbar-glass .navbar-collapse {
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                border-radius: var(--radius-md);
                padding: 1rem;
                margin-top: 0.5rem;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border-light);
            }
            .navbar-glass .nav-link.active::after {
                display: none;
            }
            .navbar-glass .nav-link.active {
                background: rgba(26, 42, 108, 0.08);
                border-radius: var(--radius-sm);
            }
            .navbar-glass .nav-cta {
                margin-top: 0.5rem;
                text-align: center;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: calc(var(--nav-height) + 40px) 0 60px;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation: isolate;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.82) 0%, rgba(26, 42, 108, 0.70) 50%, rgba(15, 26, 46, 0.75) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 60%, rgba(232, 184, 48, 0.12) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 184, 48, 0.18);
            border: 1px solid rgba(232, 184, 48, 0.3);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent-light);
            margin-bottom: 1.8rem;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 1.2rem;
            letter-spacing: -0.5px;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--accent), #f5d84a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.15rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            margin: 0 auto 2.2rem;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .hero-actions .btn-primary-custom {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 0.8rem 2.4rem;
            border-radius: 50px;
            font-size: 1rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(232, 184, 48, 0.3);
        }
        .hero-actions .btn-primary-custom:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(232, 184, 48, 0.4);
        }
        .hero-actions .btn-outline-custom {
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 0.8rem 2.4rem;
            border-radius: 50px;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }
        .hero-actions .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem 3.5rem;
            justify-content: center;
            margin-top: 3.5rem;
            padding-top: 2.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat-item .num span {
            color: var(--accent);
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 80vh;
                padding: calc(var(--nav-height) + 20px) 0 40px;
            }
            .hero-stats {
                gap: 1.2rem 2rem;
            }
            .hero-stat-item .num {
                font-size: 1.5rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 580px;
            margin: 0 auto 2.8rem;
            line-height: 1.6;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 4px;
            margin: 0.8rem 0 1.5rem;
        }
        .section-divider.center {
            margin-left: auto;
            margin-right: auto;
        }
        .bg-white-block {
            background: #fff;
        }
        .bg-light-block {
            background: var(--bg-light);
        }
        .bg-dark-block {
            background: var(--bg-dark);
            color: #fff;
        }
        .bg-dark-block .section-title {
            color: #fff;
        }
        .bg-dark-block .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-accent);
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(26, 42, 108, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .card-custom .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }
        .card-custom .card-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: rgba(232, 184, 48, 0.12);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            margin-bottom: 0.8rem;
        }

        /* ===== 分类卡片（大图） ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 300px;
            display: block;
            background: var(--bg-dark);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover img {
            transform: scale(1.06);
        }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 26, 46, 0.85) 0%, rgba(15, 26, 46, 0.2) 60%, transparent 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 1.8rem 1.5rem;
            color: #fff;
        }
        .category-card .overlay .cat-label {
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent);
            margin-bottom: 0.3rem;
        }
        .category-card .overlay .cat-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.3rem;
        }
        .category-card .overlay .cat-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 90%;
        }
        @media (max-width: 768px) {
            .category-card {
                height: 240px;
            }
            .category-card .overlay .cat-title {
                font-size: 1.2rem;
            }
        }

        /* ===== 资讯/内容列表 ===== */
        .post-card {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .post-card:last-child {
            border-bottom: none;
        }
        .post-card:hover {
            padding-left: 6px;
        }
        .post-card .post-thumb {
            flex-shrink: 0;
            width: 100px;
            height: 76px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-light);
        }
        .post-card .post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .post-card .post-body {
            flex: 1;
            min-width: 0;
        }
        .post-card .post-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(232, 184, 48, 0.1);
            padding: 0.15rem 0.7rem;
            border-radius: 50px;
            display: inline-block;
            margin-bottom: 0.3rem;
        }
        .post-card .post-title {
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 0.25rem;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .post-title a {
            color: inherit;
        }
        .post-card .post-title a:hover {
            color: var(--primary);
        }
        .post-card .post-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        @media (max-width: 576px) {
            .post-card .post-thumb {
                width: 72px;
                height: 56px;
            }
            .post-card .post-title {
                font-size: 0.92rem;
            }
        }

        /* ===== 统计数字块 ===== */
        .stat-block {
            text-align: center;
            padding: 2rem 1rem;
        }
        .stat-block .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-block .stat-num span {
            color: var(--accent);
        }
        .stat-block .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }
        .bg-dark-block .stat-block .stat-num {
            color: #fff;
        }
        .bg-dark-block .stat-block .stat-label {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            padding: 1.2rem 0;
        }
        .step-item .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.2);
        }
        .step-item .step-content h5 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.2rem;
        }
        .step-item .step-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 0.8rem;
            overflow: hidden;
            background: #fff;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-accent);
        }
        .faq-question {
            padding: 1rem 1.2rem;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:focus {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
            border-radius: var(--radius-sm);
        }
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--text-muted);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 1.2rem 1rem;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .bg-dark-block .faq-item {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.1);
        }
        .bg-dark-block .faq-question {
            color: #fff;
        }
        .bg-dark-block .faq-answer {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 2rem;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 0.9rem 2.8rem;
            border-radius: 50px;
            font-size: 1.05rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(232, 184, 48, 0.3);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(232, 184, 48, 0.4);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 0;
        }
        .site-footer h5 {
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 1.2rem;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-block;
            padding: 0.2rem 0;
        }
        .site-footer a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }
        .site-footer .footer-logo {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-logo i {
            color: var(--accent);
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
            line-height: 1.7;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.5rem 0;
            margin-top: 2.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
        }
        .site-footer .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            margin-right: 0.4rem;
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 2.5rem 0 0;
            }
            .site-footer .footer-logo {
                justify-content: center;
            }
            .site-footer .footer-desc {
                margin: 0 auto 1.5rem;
                text-align: center;
            }
            .site-footer h5 {
                text-align: center;
                margin-top: 1rem;
            }
            .site-footer .footer-links {
                align-items: center;
            }
            .site-footer .footer-social {
                text-align: center;
                margin-top: 0.8rem;
            }
        }

        /* ===== 标签/徽章 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .tag:hover {
            border-color: var(--border-accent);
            color: var(--primary);
            background: rgba(232, 184, 48, 0.06);
        }
        .tag i {
            font-size: 0.65rem;
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 2.5rem 1rem;
            color: var(--text-muted);
        }
        .empty-state i {
            font-size: 2.5rem;
            margin-bottom: 0.8rem;
            opacity: 0.4;
        }
        .empty-state p {
            font-size: 0.95rem;
        }

        /* ===== 按钮补充 ===== */
        .btn-link-custom {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.92rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .btn-link-custom:hover {
            color: var(--primary-light);
            gap: 10px;
        }

        /* ===== 滚动动画辅助 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 其他 ===== */
        .mt-4 {
            margin-top: 1.5rem;
        }
        .mb-4 {
            margin-bottom: 1.5rem;
        }
        .gap-3 {
            gap: 1rem;
        }
        .gap-4 {
            gap: 1.5rem;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--text-muted);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .section-padding {
                padding: 3rem 0;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .cta-section {
                padding: 2.5rem 0;
            }
            .stat-block .stat-num {
                font-size: 2rem;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0e2244;
            --secondary: #e8a838;
            --secondary-light: #f0c46a;
            --accent: #c0392b;
            --bg-light: #f8f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0e1a2b;
            --text-dark: #1a1a2e;
            --text-body: #2d3a4a;
            --text-muted: #6b7a8a;
            --text-light: #f0f4f8;
            --border-light: #e2e8f0;
            --border-color: #d0d8e4;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 58, 107, 0.10);
            --shadow-lg: 0 20px 48px rgba(26, 58, 107, 0.14);
            --shadow-xl: 0 32px 64px rgba(26, 58, 107, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-w: 1200px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-base);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        /* ===== 容器 ===== */
        .container-custom {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .navbar-glass {
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.30);
            box-shadow: 0 4px 20px rgba(26, 58, 107, 0.06);
            padding: 0;
            transition: var(--transition);
            position: relative;
            z-index: 1000;
        }
        .navbar-glass.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(26, 58, 107, 0.12);
        }
        .navbar-glass .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--primary);
            padding: 12px 0;
            letter-spacing: -0.3px;
        }
        .navbar-glass .navbar-brand i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .navbar-glass .navbar-brand:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .navbar-glass .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-body);
            padding: 8px 16px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-glass .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.05);
            text-decoration: none;
        }
        .navbar-glass .nav-link.active {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.08);
            font-weight: 600;
        }
        .navbar-glass .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .navbar-glass .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(26, 58, 107, 0.20);
        }
        .navbar-glass .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(26, 58, 107, 0.28);
            text-decoration: none;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--secondary);
        }
        @media (max-width: 991px) {
            .navbar-glass .navbar-collapse {
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-lg);
            }
            .navbar-glass .nav-link.active::after {
                display: none;
            }
            .navbar-glass .nav-cta {
                margin-top: 8px;
                text-align: center;
            }
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 168, 56, 0.15) 0%, transparent 70%);
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(232, 168, 56, 0.20);
            color: var(--secondary-light);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            border: 1px solid rgba(232, 168, 56, 0.30);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.2;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }
        .category-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .category-hero .hero-search {
            max-width: 520px;
            margin: 0 auto;
            display: flex;
            gap: 0;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 60px;
            padding: 4px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.20);
        }
        .category-hero .hero-search input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 14px 22px;
            font-size: 0.95rem;
            color: #fff;
            outline: none;
            border-radius: 60px 0 0 60px;
        }
        .category-hero .hero-search input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .category-hero .hero-search button {
            background: var(--secondary);
            border: none;
            color: var(--primary-dark);
            font-weight: 600;
            padding: 0 32px;
            border-radius: 60px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .category-hero .hero-search button:hover {
            background: var(--secondary-light);
            transform: scale(1.02);
        }
        @media (max-width: 768px) {
            .category-hero {
                min-height: 320px;
                padding: 60px 0 40px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .category-hero .hero-search {
                flex-direction: column;
                background: transparent;
                border: none;
                gap: 12px;
            }
            .category-hero .hero-search input {
                background: rgba(255, 255, 255, 0.15);
                border-radius: 60px;
                padding: 12px 18px;
            }
            .category-hero .hero-search button {
                padding: 12px 24px;
                justify-content: center;
                border-radius: 60px;
            }
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 50px 0;
            }
        }

        .section-title-wrap {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title-wrap .sub-label {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 50px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-title-wrap h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title-wrap p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section-title-wrap h2 {
                font-size: 1.6rem;
            }
            .section-title-wrap p {
                font-size: 0.95rem;
            }
        }

        /* ===== 介绍板块 ===== */
        .intro-block {
            background: var(--bg-white);
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-grid .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
            object-fit: cover;
            width: 100%;
        }
        .intro-grid .intro-text h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .intro-grid .intro-text p {
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .intro-grid .intro-text .intro-stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .intro-grid .intro-text .intro-stats .stat-item {
            text-align: center;
        }
        .intro-grid .intro-text .intro-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .intro-grid .intro-text .intro-stats .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        @media (max-width: 820px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-grid .intro-image {
                order: -1;
                max-height: 300px;
            }
            .intro-grid .intro-text h3 {
                font-size: 1.4rem;
            }
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        @media (max-width: 992px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }

        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .guide-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(26, 58, 107, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .guide-card:hover .card-icon {
            background: var(--primary);
            color: #fff;
        }
        .guide-card h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .guide-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }
        .guide-card .card-tags span {
            background: var(--bg-light);
            color: var(--text-muted);
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 50px;
            border: 1px solid var(--border-light);
        }
        .guide-card .card-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            align-self: flex-start;
        }
        .guide-card .card-link i {
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .guide-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 流程步骤 ===== */
        .steps-section {
            background: var(--bg-white);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }
        .step-item {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 18px;
            box-shadow: 0 4px 12px rgba(26, 58, 107, 0.20);
        }
        .step-item h5 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .step-item {
                padding: 24px 16px;
            }
        }

        /* ===== 文章列表 ===== */
        .article-list-section {
            background: var(--bg-light);
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .article-row {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            background: var(--bg-white);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .article-row:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .article-row .article-thumb {
            width: 140px;
            min-height: 90px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #eef2f7;
        }
        .article-row .article-info {
            flex: 1;
        }
        .article-row .article-info h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .article-row .article-info h4 a {
            color: var(--text-dark);
        }
        .article-row .article-info h4 a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .article-row .article-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .article-row .article-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .article-row .article-meta span i {
            margin-right: 4px;
        }
        @media (max-width: 768px) {
            .article-row {
                flex-direction: column;
                padding: 16px;
            }
            .article-row .article-thumb {
                width: 100%;
                height: 180px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            background: var(--bg-light);
            padding: 16px 24px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
        }
        .faq-question:hover {
            background: rgba(26, 58, 107, 0.05);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--primary);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-body);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-block .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-block .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 14px 38px;
            border-radius: 60px;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(232, 168, 56, 0.30);
        }
        .cta-block .cta-btn:hover {
            background: var(--secondary-light);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(232, 168, 56, 0.40);
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .cta-block h2 {
                font-size: 1.6rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
            .cta-block .cta-btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 56px 0 0;
        }
        .site-footer .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo i {
            color: var(--secondary);
        }
        .site-footer .footer-desc {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.70);
            margin-right: 8px;
            transition: var(--transition);
            font-size: 1rem;
        }
        .site-footer .footer-social a:hover {
            background: var(--secondary);
            color: var(--primary-dark);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .site-footer h5 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
            text-decoration: none;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.60);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--secondary);
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 0;
            }
            .site-footer .footer-desc {
                max-width: 100%;
            }
            .site-footer .footer-bottom {
                margin-top: 24px;
                padding: 16px 0;
            }
        }

        /* ===== 滚动渐入 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 额外响应式 ===== */
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .section-title-wrap h2 {
                font-size: 1.3rem;
            }
            .guide-card {
                padding: 20px 16px;
            }
            .step-item .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #0d1b2a;
            --primary-light: #1b2d44;
            --accent: #c9a84c;
            --accent-hover: #dbb95a;
            --accent-soft: #f5edd6;
            --bg-light: #f5f6f8;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #2d2d44;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #e4e7ed;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.08);
            --glass-bg: rgba(255,255,255,0.78);
            --glass-border: rgba(255,255,255,0.25);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.25s ease;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            background: var(--bg-light);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) { .container-custom { padding: 0 16px; } }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
        }
        @media (max-width: 576px) {
            .section-title { font-size: 1.6rem; }
        }
        .divider-accent {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px 0 20px;
        }

        /* ===== Navigation ===== */
        .navbar-glass {
            background: var(--glass-bg);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid var(--glass-border);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
            padding: 10px 0;
            transition: var(--transition);
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .navbar-glass .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
        .navbar-glass .navbar-brand i { color: var(--accent); font-size: 1.6rem; }
        .navbar-glass .navbar-brand:hover { color: var(--primary); }
        .navbar-glass .nav-link {
            color: var(--text-body);
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            font-size: 0.95rem;
            position: relative;
        }
        .navbar-glass .nav-link:hover,
        .navbar-glass .nav-link.active {
            color: var(--primary);
            background: rgba(13,27,42,0.05);
        }
        .navbar-glass .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .navbar-glass .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .navbar-glass .nav-cta:hover {
            background: var(--accent);
            color: var(--primary) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(201,168,76,0.35);
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 4px 8px;
        }
        .navbar-toggler:focus { box-shadow: none; }
        @media (max-width: 991px) {
            .navbar-glass .navbar-collapse {
                background: rgba(255,255,255,0.96);
                backdrop-filter: blur(12px);
                border-radius: var(--radius-md);
                padding: 16px 12px;
                margin-top: 12px;
                box-shadow: var(--shadow-lg);
            }
            .navbar-glass .nav-link { padding: 10px 16px; }
            .navbar-glass .nav-cta { margin-top: 8px; text-align: center; }
        }

        /* ===== Article Header ===== */
        .article-header {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0d1b2a 0%, #1b2d44 60%, #2a3f58 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #fff;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.82) 0%, rgba(27,45,68,0.70) 100%);
            z-index: 0;
        }
        .article-header .container-custom { position: relative; z-index: 1; width: 100%; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: rgba(255,255,255,0.8); }
        .article-breadcrumb a:hover { color: var(--accent); }
        .article-breadcrumb .separator { color: rgba(255,255,255,0.4); }
        .article-breadcrumb .current { color: var(--accent); font-weight: 500; }
        .article-category-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }
        .article-header h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            max-width: 900px;
            margin-bottom: 16px;
            color: #fff;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.75);
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }
        .article-meta span { display: flex; align-items: center; }
        @media (max-width: 768px) {
            .article-header { padding: 60px 0 40px; min-height: 240px; }
            .article-header h1 { font-size: 1.6rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
        }

        /* ===== Article Content ===== */
        .article-body-wrap {
            padding: 50px 0 60px;
            background: var(--bg-light);
        }
        .article-content {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 48px;
        }
        .article-content .lead {
            font-size: 1.15rem;
            color: var(--text-dark);
            font-weight: 500;
            line-height: 1.8;
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            margin-bottom: 32px;
            background: var(--accent-soft);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 16px 24px;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-content h2, .article-content h3 {
            color: var(--text-dark);
            font-weight: 700;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .article-content h2 { font-size: 1.7rem; }
        .article-content h3 { font-size: 1.35rem; }
        .article-content ul, .article-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.8rem;
        }
        .article-content li { margin-bottom: 0.5rem; }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--accent-soft);
            padding: 16px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-dark);
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 24px auto;
            box-shadow: var(--shadow-sm);
        }
        .article-content a { color: var(--accent); font-weight: 500; }
        .article-content a:hover { color: var(--primary); text-decoration: underline; }
        @media (max-width: 768px) {
            .article-content { padding: 24px 20px; }
            .article-content p { font-size: 1rem; }
            .article-content .lead { font-size: 1.05rem; padding: 12px 16px; }
        }

        /* ===== Article Footer ===== */
        .article-footer-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0 0;
            margin-top: 32px;
            border-top: 1px solid var(--border-color);
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            background: var(--bg-light);
            color: var(--text-body);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-share span { font-size: 0.9rem; color: var(--text-muted); }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-light);
            color: var(--text-body);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-white);
        }
        .related-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border-color);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .related-card .card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .related-card .card-img .cat-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .related-card .card-body {
            padding: 20px 20px 24px;
        }
        .related-card .card-body h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .related-card .card-body .meta i { margin-right: 4px; }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .faq-section .accordion-item {
            border: none;
            background: var(--bg-white);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .faq-section .accordion-button {
            font-weight: 600;
            color: var(--text-dark);
            background: var(--bg-white);
            padding: 18px 24px;
            font-size: 1rem;
            border: none;
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: var(--accent-soft);
            color: var(--primary);
            box-shadow: none;
        }
        .faq-section .accordion-button:focus { box-shadow: none; }
        .faq-section .accordion-button::after {
            background-size: 1rem;
            transition: var(--transition);
        }
        .faq-section .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #0d1b2a 0%, #1b2d44 100%);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: var(--primary);
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(201,168,76,0.30);
        }
        @media (max-width: 576px) {
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 1rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 30px;
        }
        .site-footer .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .site-footer .footer-logo i { color: var(--accent); }
        .site-footer .footer-desc {
            font-size: 0.95rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.65);
            max-width: 360px;
        }
        .site-footer h5 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.6); }
        .site-footer .footer-bottom a:hover { color: var(--accent); }

        /* ===== Not Found ===== */
        .not-found-wrap {
            padding: 80px 0;
            text-align: center;
        }
        .not-found-wrap .not-found-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .not-found-wrap h2 {
            font-size: 1.8rem;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .not-found-wrap p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 24px;
        }
        .not-found-wrap .btn-home {
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-wrap .btn-home:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* ===== Scroll to Top ===== */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 50%;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
        }
        .scroll-top.visible { opacity: 1; pointer-events: auto; }
        .scroll-top:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 768px) {
            .article-header h1 { font-size: 1.5rem; }
            .related-card .card-img { height: 150px; }
            .site-footer { padding: 40px 0 20px; }
            .site-footer .footer-logo { font-size: 1.25rem; }
        }
        @media (max-width: 576px) {
            .article-header { padding: 40px 0 30px; min-height: 200px; }
            .article-header h1 { font-size: 1.3rem; }
            .article-content { padding: 16px; }
            .article-content p { font-size: 0.95rem; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
            .related-card .card-img { height: 130px; }
            .cta-section { padding: 50px 0; }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9b;
            --primary-dark: #0f2444;
            --primary-gradient: linear-gradient(135deg, #1a3a6b 0%, #2a5a9b 100%);
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --secondary-dark: #c88a20;
            --accent: #e85d3a;
            --bg-light: #f7f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0f1a2e;
            --text-dark: #1a1a2e;
            --text-body: #3d4a5c;
            --text-light: #7a8a9e;
            --text-white: #f0f4f8;
            --border-light: #e2e8f0;
            --border-medium: #c8d0dc;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 58, 107, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 58, 107, 0.14);
            --shadow-card: 0 4px 16px rgba(26, 58, 107, 0.07);
            --shadow-hover: 0 12px 36px rgba(26, 58, 107, 0.13);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 576px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .navbar-glass {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(18px) saturate(1.6);
            -webkit-backdrop-filter: blur(18px) saturate(1.6);
            border-bottom: 1px solid rgba(255, 255, 255, 0.6);
            box-shadow: 0 1px 12px rgba(26, 58, 107, 0.06);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .navbar-glass.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 24px rgba(26, 58, 107, 0.10);
        }
        .navbar-glass .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.3px;
        }
        .navbar-glass .navbar-brand i {
            color: var(--secondary);
            font-size: 1.5rem;
        }
        .navbar-glass .navbar-brand:hover {
            color: var(--primary-dark);
        }
        .navbar-glass .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 16px !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
        }
        .navbar-glass .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.06);
        }
        .navbar-glass .nav-link.active {
            color: var(--primary-dark);
            font-weight: 600;
            background: rgba(26, 58, 107, 0.08);
        }
        .navbar-glass .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .navbar-glass .nav-cta {
            background: var(--primary-gradient) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(26, 58, 107, 0.20);
            transition: all var(--transition-fast);
        }
        .navbar-glass .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 58, 107, 0.30);
            background: linear-gradient(135deg, #1e4480 0%, #2a5a9b 100%) !important;
        }
        .navbar-glass .navbar-toggler {
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 4px 8px;
            background: transparent;
        }
        .navbar-glass .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }
        @media (max-width: 991.98px) {
            .navbar-glass .navbar-collapse {
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                border-radius: var(--radius-md);
                padding: 12px 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--border-light);
            }
            .navbar-glass .nav-link.active::after {
                display: none;
            }
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            background: var(--primary-gradient);
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(232, 168, 56, 0.15) 0%, transparent 70%);
        }
        .page-hero .container-custom {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.10);
        }
        .page-hero h1 i {
            color: var(--secondary);
            margin-right: 12px;
        }
        .page-hero .hero-breadcrumb {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            margin-bottom: 8px;
        }
        .page-hero .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .page-hero .hero-breadcrumb a:hover {
            color: #fff;
        }
        .page-hero p.hero-sub {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 8px auto 0;
            font-weight: 400;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 48px 0 40px;
                min-height: 200px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p.hero-sub {
                font-size: 1rem;
            }
        }
        @media (max-width: 576px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero h1 i {
                margin-right: 6px;
            }
        }

        /* ===== 分类导航标签 ===== */
        .category-tabs {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
            box-shadow: var(--shadow-sm);
        }
        .category-tabs .tab-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .category-tabs .tab-list li a {
            display: inline-block;
            padding: 8px 22px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .category-tabs .tab-list li a:hover {
            background: rgba(26, 58, 107, 0.06);
            border-color: var(--border-medium);
            color: var(--primary);
        }
        .category-tabs .tab-list li a.active {
            background: var(--primary-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(26, 58, 107, 0.20);
        }

        /* ===== 主内容区 ===== */
        .main-content {
            padding: 48px 0 56px;
        }

        /* ===== 文章卡片 ===== */
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .article-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-light);
        }
        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .article-card:hover .card-img img {
            transform: scale(1.05);
        }
        .article-card .card-img .tag-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.10);
        }
        .article-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .article-card .card-body .meta i {
            margin-right: 4px;
            color: var(--primary-light);
        }
        .article-card .card-body .meta span {
            display: inline-flex;
            align-items: center;
        }
        .article-card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-body h3 a {
            color: inherit;
        }
        .article-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .article-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-body .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast);
        }
        .article-card .card-body .read-more:hover {
            gap: 12px;
            color: var(--primary-light);
        }
        @media (max-width: 576px) {
            .article-card .card-body {
                padding: 16px 18px 20px;
            }
            .article-card .card-body h3 {
                font-size: 1.05rem;
            }
        }

        /* ===== 特色新闻块 ===== */
        .featured-news {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            margin-bottom: 40px;
            display: flex;
            flex-wrap: wrap;
        }
        .featured-news .news-image {
            flex: 0 0 46%;
            min-height: 280px;
            background: var(--bg-light);
            position: relative;
            overflow: hidden;
        }
        .featured-news .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .featured-news .news-image .featured-tag {
            position: absolute;
            top: 18px;
            left: 18px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 18px;
            border-radius: 50px;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
        }
        .featured-news .news-content {
            flex: 1;
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-news .news-content .meta {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 10px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .featured-news .news-content .meta i {
            margin-right: 4px;
            color: var(--primary-light);
        }
        .featured-news .news-content h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .featured-news .news-content h2 a {
            color: inherit;
        }
        .featured-news .news-content h2 a:hover {
            color: var(--primary);
        }
        .featured-news .news-content p {
            font-size: 0.98rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .featured-news .news-content .btn-news {
            align-self: flex-start;
            background: var(--primary-gradient);
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 14px rgba(26, 58, 107, 0.18);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .featured-news .news-content .btn-news:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(26, 58, 107, 0.28);
            background: linear-gradient(135deg, #1e4480 0%, #2a5a9b 100%);
        }
        @media (max-width: 992px) {
            .featured-news .news-image {
                flex: 0 0 100%;
                min-height: 220px;
            }
            .featured-news .news-content {
                padding: 24px 28px;
            }
            .featured-news .news-content h2 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 576px) {
            .featured-news .news-content {
                padding: 18px 20px;
            }
            .featured-news .news-content h2 {
                font-size: 1.15rem;
            }
        }

        /* ===== 快讯条 ===== */
        .news-ticker {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .news-ticker .ticker-label {
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 50px;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .news-ticker .ticker-items {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 28px;
            flex: 1;
        }
        .news-ticker .ticker-items a {
            font-size: 0.88rem;
            color: var(--text-body);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-ticker .ticker-items a::before {
            content: '▸';
            color: var(--secondary);
            font-weight: 700;
        }
        .news-ticker .ticker-items a:hover {
            color: var(--primary);
        }
        @media (max-width: 576px) {
            .news-ticker {
                padding: 12px 14px;
                gap: 10px;
            }
            .news-ticker .ticker-items a {
                font-size: 0.82rem;
            }
        }

        /* ===== 排行列表 ===== */
        .rank-list {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .rank-list .rank-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rank-list .rank-title i {
            color: var(--secondary);
        }
        .rank-list .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-fast);
        }
        .rank-list .rank-item:last-child {
            border-bottom: none;
        }
        .rank-list .rank-item .rank-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--text-light);
            flex-shrink: 0;
        }
        .rank-list .rank-item:nth-child(1) .rank-num {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .rank-list .rank-item:nth-child(2) .rank-num {
            background: var(--secondary-light);
            color: var(--primary-dark);
        }
        .rank-list .rank-item:nth-child(3) .rank-num {
            background: #f0d8a0;
            color: var(--primary-dark);
        }
        .rank-list .rank-item .rank-text {
            flex: 1;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .rank-list .rank-item .rank-text a {
            color: inherit;
        }
        .rank-list .rank-item .rank-text a:hover {
            color: var(--primary);
        }
        .rank-list .rank-item .rank-view {
            font-size: 0.78rem;
            color: var(--text-light);
            white-space: nowrap;
        }

        /* ===== 分页 ===== */
        .pagination-nav {
            margin-top: 40px;
            display: flex;
            justify-content: center;
        }
        .pagination-nav .page-link {
            color: var(--text-body);
            border-color: var(--border-light);
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            border-radius: var(--radius-sm);
            margin: 0 3px;
            transition: all var(--transition-fast);
        }
        .pagination-nav .page-link:hover {
            background: rgba(26, 58, 107, 0.06);
            color: var(--primary);
            border-color: var(--border-medium);
        }
        .pagination-nav .page-item.active .page-link {
            background: var(--primary-gradient);
            border-color: transparent;
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 58, 107, 0.18);
        }
        .pagination-nav .page-item.disabled .page-link {
            color: var(--text-light);
            opacity: 0.5;
        }

        /* ===== 侧边栏 ===== */
        .sidebar-widget {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            margin-bottom: 28px;
        }
        .sidebar-widget .widget-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 18px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget .widget-title i {
            color: var(--secondary);
        }
        .sidebar-widget .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-widget .tag-cloud a {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .sidebar-widget .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .sidebar-widget .widget-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-widget .widget-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .sidebar-widget .widget-list li:last-child {
            border-bottom: none;
        }
        .sidebar-widget .widget-list li i {
            color: var(--secondary);
            margin-top: 4px;
            font-size: 0.8rem;
        }
        .sidebar-widget .widget-list li a {
            font-size: 0.9rem;
            color: var(--text-body);
            font-weight: 500;
            line-height: 1.4;
        }
        .sidebar-widget .widget-list li a:hover {
            color: var(--primary);
        }

        /* ===== 资讯订阅 CTA ===== */
        .newsletter-cta {
            background: var(--primary-gradient);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            margin-top: 16px;
            position: relative;
            overflow: hidden;
        }
        .newsletter-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .newsletter-cta .cta-content {
            position: relative;
            z-index: 2;
        }
        .newsletter-cta h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .newsletter-cta p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 24px;
        }
        .newsletter-cta .cta-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .newsletter-cta .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 20px;
            border-radius: 50px;
            border: none;
            font-size: 0.95rem;
            outline: none;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }
        .newsletter-cta .cta-form input:focus {
            box-shadow: 0 0 0 4px rgba(232, 168, 56, 0.35);
        }
        .newsletter-cta .cta-form button {
            background: var(--secondary);
            color: var(--primary-dark);
            border: none;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(232, 168, 56, 0.30);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .newsletter-cta .cta-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 56, 0.40);
            background: var(--secondary-light);
        }
        @media (max-width: 576px) {
            .newsletter-cta {
                padding: 32px 20px;
            }
            .newsletter-cta h3 {
                font-size: 1.4rem;
            }
            .newsletter-cta .cta-form input {
                min-width: 100%;
            }
            .newsletter-cta .cta-form button {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 52px 0 0;
            margin-top: 16px;
        }
        .site-footer .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-logo i {
            color: var(--secondary);
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            opacity: 0.75;
            max-width: 340px;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: all var(--transition-fast);
        }
        .site-footer .footer-social a:hover {
            background: var(--secondary);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }
        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
            text-decoration: none;
        }
        .site-footer .footer-bottom {
            margin-top: 36px;
            padding: 18px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.85rem;
            opacity: 0.6;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.8);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--secondary);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 36px 0 0;
            }
            .site-footer .footer-logo {
                font-size: 1.25rem;
            }
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 992px) {
            .sidebar-col {
                margin-top: 40px;
            }
        }
        @media (max-width: 576px) {
            .main-content {
                padding: 28px 0 36px;
            }
            .rank-list {
                padding: 16px 18px;
            }
            .sidebar-widget {
                padding: 18px 18px;
            }
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2444;
            --secondary: #e8a832;
            --secondary-light: #f0c060;
            --accent: #d94a3d;
            --bg-body: #f5f7fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-section-alt: #edf1f9;
            --text-dark: #1a2133;
            --text-main: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #a0b0c3;
            --text-white: #f0f4ff;
            --border-light: #e2e8f0;
            --border-color: #d0d8e6;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 58, 107, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 58, 107, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1240px;
            --nav-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .navbar-glass {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1080;
            padding: 0 0;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(18px) saturate(180%);
            -webkit-backdrop-filter: blur(18px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.30);
            box-shadow: 0 1px 12px rgba(26, 58, 107, 0.06);
            transition: background 0.35s, box-shadow 0.35s;
        }
        .navbar-glass.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 24px rgba(26, 58, 107, 0.10);
        }
        .navbar-glass .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-dark);
            text-decoration: none;
            letter-spacing: -0.3px;
        }
        .navbar-brand i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .navbar-brand span {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-brand:hover {
            color: var(--primary-dark);
        }
        .navbar-glass .navbar-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .navbar-glass .navbar-nav .nav-link:hover,
        .navbar-glass .navbar-nav .nav-link:focus {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.06);
        }
        .navbar-glass .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.08);
            font-weight: 600;
        }
        .navbar-glass .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--secondary);
            border-radius: 3px;
        }
        .navbar-glass .navbar-nav .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(26, 58, 107, 0.20);
        }
        .navbar-glass .navbar-nav .nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(26, 58, 107, 0.25);
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--primary-dark);
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--secondary);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            padding: 120px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 80%, rgba(232, 168, 50, 0.15), transparent 70%);
        }
        .category-hero .container-custom {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.20);
            padding: 6px 20px;
            border-radius: 50px;
            color: var(--text-white);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .category-hero .hero-badge i {
            color: var(--secondary);
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }
        .category-hero .hero-sub {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 12px;
            line-height: 1.8;
        }
        .category-hero .hero-meta {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .category-hero .hero-meta span {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .category-hero .hero-meta i {
            color: var(--secondary);
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-block-alt {
            background: var(--bg-section-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-title p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.05rem;
        }
        .section-title .title-tag {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        /* ===== 分类标签导航 ===== */
        .tutorial-tabs {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
        }
        .tutorial-tabs .tab-btn {
            padding: 8px 24px;
            border-radius: 50px;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
            cursor: pointer;
        }
        .tutorial-tabs .tab-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: rgba(26, 58, 107, 0.04);
        }
        .tutorial-tabs .tab-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 58, 107, 0.25);
        }

        /* ===== 教程卡片 ===== */
        .tutorial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .tutorial-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .tutorial-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .tutorial-card .card-img-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--bg-section-alt);
        }
        .tutorial-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .tutorial-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .tutorial-card .card-img-wrap .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .tutorial-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tutorial-card .card-body .card-cat {
            font-size: 0.8rem;
            color: var(--primary-light);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .tutorial-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .tutorial-card .card-body p {
            color: var(--text-muted);
            font-size: 0.92rem;
            flex: 1;
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .tutorial-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }
        .tutorial-card .card-body .card-meta i {
            margin-right: 4px;
        }
        .tutorial-card .card-body .card-meta .read-link {
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .tutorial-card .card-body .card-meta .read-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* ===== 学习路径 / 流程 ===== */
        .path-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }
        .path-step {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .path-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .path-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(26, 58, 107, 0.20);
        }
        .path-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .path-step p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
            line-height: 1.6;
        }
        .path-step .step-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            font-size: 1.6rem;
            color: var(--secondary);
            opacity: 0.5;
        }
        .path-step:last-child .step-arrow {
            display: none;
        }

        /* ===== 精选推荐 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .featured-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: row;
            align-items: stretch;
        }
        .featured-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .featured-item .feat-img {
            width: 200px;
            min-height: 160px;
            flex-shrink: 0;
            object-fit: cover;
            border-radius: 0;
        }
        .featured-item .feat-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-item .feat-body .feat-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 4px;
        }
        .featured-item .feat-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .featured-item .feat-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .featured-item .feat-body .feat-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.02rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question i {
            color: var(--secondary);
            transition: transform 0.3s;
            font-size: 1.1rem;
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.80);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-btn {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 14px 44px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(232, 168, 50, 0.35);
        }
        .cta-section .cta-btn:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(232, 168, 50, 0.45);
            color: var(--primary-dark);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 56px 0 0;
        }
        .site-footer .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .site-footer .footer-logo i {
            color: var(--secondary);
        }
        .site-footer .footer-desc {
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 340px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.70);
            margin-right: 10px;
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .site-footer .footer-social a:hover {
            background: var(--secondary);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .site-footer h5 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .tutorial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .path-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .path-step .step-arrow {
                display: none;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .featured-item .feat-img {
                width: 160px;
            }
        }
        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero .hero-sub {
                font-size: 1rem;
            }
            .category-hero .hero-meta {
                gap: 16px;
                flex-direction: column;
                align-items: center;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .tutorial-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .path-steps {
                grid-template-columns: 1fr;
            }
            .featured-item {
                flex-direction: column;
            }
            .featured-item .feat-img {
                width: 100%;
                height: 180px;
            }
            .site-footer .footer-logo {
                justify-content: center;
            }
            .site-footer .footer-desc {
                max-width: 100%;
                text-align: center;
            }
            .site-footer .footer-social {
                text-align: center;
            }
            .site-footer h5 {
                text-align: center;
            }
            .site-footer .footer-links {
                align-items: center;
            }
            .navbar-glass .navbar-nav .nav-link.active::after {
                bottom: 0px;
            }
        }
        @media (max-width: 520px) {
            .category-hero {
                padding: 100px 0 56px;
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .section-block {
                padding: 44px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .tutorial-tabs .tab-btn {
                padding: 6px 16px;
                font-size: 0.82rem;
            }
            .tutorial-card .card-body {
                padding: 16px 18px 20px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .cta-btn {
                padding: 12px 32px;
                font-size: 0.95rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-secondary-custom {
            color: var(--secondary);
        }
        .bg-primary-gradient {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 16px;
        }
        .gap-1 {
            gap: 4px;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .d-flex {
            display: flex;
        }
        .align-items-center {
            align-items: center;
        }
        .justify-content-center {
            justify-content: center;
        }
        .justify-content-between {
            justify-content: space-between;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .text-center {
            text-align: center;
        }
        .w-100 {
            width: 100%;
        }