/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --brand: #0f4c81;
            --brand-dark: #0a3257;
            --brand-light: #dbeafe;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg: #f7f9fc;
            --surface: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 4px 24px rgba(15, 76, 129, 0.07);
            --shadow-lg: 0 16px 48px rgba(15, 76, 129, 0.12);
            --transition: all 0.3s ease;
        }

        /* ===== 基础 reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 96px 0;
        }
        .section-sm {
            padding: 64px 0;
        }
        .section-dark {
            background: var(--brand-dark);
            color: #fff;
        }
        .section-tag {
            display: inline-block;
            background: var(--brand-light);
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(1.9rem, 3vw, 2.6rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin-top: 12px;
        }

        /* ===== 导航 ===== */
        .navbar-wrap {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 0 24px;
        }
        .navbar {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: 60px;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 8px 32px rgba(15, 76, 129, 0.10);
            transition: var(--transition);
        }
        .navbar.scrolled {
            box-shadow: 0 6px 28px rgba(15, 76, 129, 0.14);
            background: rgba(255, 255, 255, 0.93);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-right: 16px;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand), #1d6fb8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(15, 76, 129, 0.3);
        }
        .logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-block;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .nav-link:hover {
            background: #f1f5f9;
            color: var(--brand);
        }
        .nav-link.active {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 76, 129, 0.3);
        }
        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 10px 22px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: #f1f5f9;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--brand-light);
        }
        @media (max-width: 960px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: absolute;
                top: calc(100% + 10px);
                right: 20px;
                left: 20px;
                background: rgba(255, 255, 255, 0.97);
                backdrop-filter: blur(18px);
                border-radius: 20px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                border: 1px solid var(--border);
                box-shadow: 0 20px 50px rgba(15, 76, 129, 0.14);
                display: none;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 14px 20px;
                text-align: center;
                border-radius: 14px;
            }
            .nav-cta {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .navbar-wrap {
                padding: 0 12px;
                top: 10px;
            }
            .logo-text {
                font-size: 1rem;
            }
            .logo-mark {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation: isolate;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 50, 87, 0.92) 0%, rgba(10, 50, 87, 0.75) 50%, rgba(15, 76, 129, 0.4) 100%);
            z-index: -1;
        }
        .hero-inner {
            padding: 160px 24px 100px;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 14px;
            padding: 8px 20px;
            border-radius: 999px;
            letter-spacing: 0.5px;
            backdrop-filter: blur(8px);
            margin-bottom: 28px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero-title {
            font-size: clamp(2.4rem, 5vw, 4rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
            max-width: 760px;
            margin-bottom: 24px;
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #fff;
            padding: 16px 32px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
        }
        .btn-hero-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(245, 158, 11, 0.4);
        }
        .btn-hero-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 15px 30px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 500;
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }
        .btn-hero-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }
        .hero-stat {
            color: #fff;
        }
        .hero-stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
        }
        .hero-stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero {
                min-height: auto;
            }
            .hero-inner {
                padding: 140px 20px 70px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-hero-primary,
            .btn-hero-ghost {
                justify-content: center;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 40px;
            }
            .hero-stat-value {
                font-size: 1.7rem;
            }
        }

        /* ===== 核心能力卡片 ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        @media (max-width: 960px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .services-grid {
                grid-template-columns: 1fr;
            }
        }
        .service-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            transition: var(--transition);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }
        .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(15, 76, 129, 0.25);
        }
        .service-card:hover::after {
            opacity: 1;
        }
        .service-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--brand-light), #e0f2fe);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--brand);
            margin-bottom: 24px;
            transition: var(--transition);
        }
        .service-card:hover .service-icon {
            transform: scale(1.05) rotate(-3deg);
        }
        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .service-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 20px;
            transition: var(--transition);
        }
        .service-link:hover {
            gap: 10px;
            color: var(--accent-dark);
        }

        /* ===== 分类入口板块 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
        }
        .category-card {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: flex-end;
            isolation: isolate;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: none;
        }
        .category-card::before {
            content: '';
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(180deg, rgba(10, 50, 87, 0.1) 40%, rgba(10, 50, 87, 0.88) 100%);
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card:hover::before {
            background: linear-gradient(180deg, rgba(10, 50, 87, 0.15) 30%, rgba(10, 50, 87, 0.93) 100%);
        }
        .category-card img.cat-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: -2;
        }
        .category-card-content {
            padding: 32px;
            color: #fff;
            width: 100%;
        }
        .category-card-content h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .category-card-content p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 420px;
        }
        .category-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: 999px;
            padding: 12px 24px;
            font-size: 0.92rem;
            font-weight: 600;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .category-card-btn:hover {
            background: #fff;
            color: var(--brand);
            border-color: #fff;
            gap: 12px;
        }

        /* ===== 数据概览 ===== */
        .data-section {
            background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand) 60%, #1d6fb8 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.08);
            top: -100px;
            right: -100px;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        @media (max-width: 768px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }
        .data-item .value {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
        }
        .data-item .value span {
            color: var(--accent);
        }
        .data-item .label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
        }

        /* ===== 服务流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 48px;
            position: relative;
        }
        @media (max-width: 960px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }
        .process-item {
            position: relative;
            background: var(--surface);
            border-radius: var(--radius);
            padding: 32px 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .process-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .process-step {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .process-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .process-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.65;
        }
        .process-icon {
            width: 56px;
            height: 56px;
            background: var(--brand-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand);
            margin: 0 auto 18px;
        }

        /* ===== 最新资讯卡片 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        @media (max-width: 960px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }
        .news-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            box-shadow: var(--shadow);
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(15, 76, 129, 0.2);
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .news-category {
            background: var(--brand-light);
            color: var(--brand);
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.78rem;
        }
        .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
            color: var(--text);
        }
        .news-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 20px;
            flex: 1;
        }
        .news-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: auto;
        }
        .news-link:hover {
            gap: 10px;
            color: var(--accent-dark);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 40px auto 0;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: rgba(15, 76, 129, 0.3);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 24px;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--brand);
        }
        .faq-toggle {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-item.open .faq-toggle {
            background: var(--brand);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            isolation: isolate;
            padding: 100px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 50, 87, 0.92), rgba(15, 76, 129, 0.82));
            z-index: -1;
        }
        .cta-inner {
            text-align: center;
            color: #fff;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 32px;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-cta-primary {
            background: var(--accent);
            color: #fff;
            padding: 16px 36px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(245, 158, 11, 0.45);
        }
        .btn-cta-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 15px 32px;
            border-radius: 999px;
            font-weight: 500;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-3px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0b1e33;
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-desc {
            font-size: 0.92rem;
            line-height: 1.7;
            margin-top: 16px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 28px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== 通用按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-radius: 999px;
            padding: 14px 28px;
            font-weight: 600;
            font-size: 0.98rem;
            transition: var(--transition);
            border: none;
        }
        .btn:focus-visible,
        .nav-link:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.5);
            outline-offset: 2px;
        }

        /* ===== 页面横幅（内页用） ===== */
        .page-banner {
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            padding: 180px 0 80px;
            isolation: isolate;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 50, 87, 0.88), rgba(15, 76, 129, 0.72));
            z-index: -1;
        }
        .page-banner h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            color: #fff;
            font-weight: 800;
            line-height: 1.2;
        }
        .page-banner .breadcrumb {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.92rem;
            margin-top: 12px;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }

/* roulang page: article */
:root {
  --primary: #1a3a6b;
  --primary-dark: #122a4d;
  --accent: #c9a24b;
  --accent-light: #e3c87d;
  --soft-bg: #f5f7fb;
  --muted-text: #7a8496;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 12px rgba(26, 58, 107, 0.06);
  --shadow-md: 0 8px 32px rgba(26, 58, 107, 0.10);
  --shadow-lg: 0 16px 48px rgba(26, 58, 107, 0.14);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--soft-bg);
  color: #1f2937;
  line-height: 1.75;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; }

/* ===== 容器 ===== */
.container {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.navbar {
  position: sticky;
  top: 16px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1220px;
  margin: 0 auto;
  margin-top: 16px;
  margin-left: 24px;
  margin-right: 24px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 100px;
  border: 1px solid rgba(201, 162, 75, 0.20);
  box-shadow: 0 4px 24px rgba(26, 58, 107, 0.07);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.navbar:hover {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 8px 32px rgba(26, 58, 107, 0.11);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #1a3a6b 0%, #28527f 100%);
  color: #fff;
  border-radius: 12px;
  font-size: 1.15rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(26, 58, 107, 0.18);
}
.logo-text { letter-spacing: 1px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.94rem;
  font-weight: 500;
  color: #4b5563;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
}
.nav-link:hover {
  background: rgba(26, 58, 107, 0.05);
  color: var(--primary);
}
.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 58, 107, 0.22);
}
.nav-link.active:hover {
  background: var(--primary);
  color: #fff;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  background: linear-gradient(135deg, #c9a24b 0%, #b58b36 100%);
  color: #fff;
  border-radius: 100px;
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(201, 162, 75, 0.30);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 162, 75, 0.38);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--primary);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
}
.nav-toggle:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
    margin: 12px 12px 0;
    border-radius: 20px;
    padding: 12px 16px;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 4px;
    padding: 12px 0 4px;
    order: 3;
  }
  .nav-links.open { display: flex; }
  .nav-link {
    width: 100%;
    text-align: center;
    padding: 10px 16px;
  }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }
}

/* ===== 文章Hero ===== */
.article-hero {
  position: relative;
  padding: 120px 0 80px;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  margin-top: -60px;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 22, 44, 0.82) 0%, rgba(16, 32, 60, 0.74) 60%, rgba(245, 247, 251, 0) 100%);
  pointer-events: none;
}
.article-hero .container {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s ease;
}
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb i {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  background: rgba(201, 162, 75, 0.95);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 100px;
  letter-spacing: 0.5px;
}
.meta-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.88rem;
}
.article-hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  max-width: 860px;
  margin: 0 0 18px;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.article-desc {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 720px;
  line-height: 1.8;
}
@media (max-width: 768px) {
  .article-hero { padding: 100px 0 60px; }
  .article-hero h1 { font-size: 1.7rem; }
  .article-desc { font-size: 0.95rem; }
}

/* ===== 正文区 ===== */
.section-padding { padding: 64px 0; }
.article-main { padding: 48px 0 64px; margin-top: -24px; position: relative; z-index: 3; }
.article-card {
  background: #fff;
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(26, 58, 107, 0.06);
}
.article-cover {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 36px;
  box-shadow: var(--shadow-sm);
}
.article-content {
  font-size: 1.03rem;
  color: #374151;
  line-height: 1.9;
}
.article-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--primary);
  margin: 40px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(201, 162, 75, 0.3);
}
.article-content h3 {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--primary);
  margin: 28px 0 12px;
}
.article-content p {
  margin: 0 0 18px;
}
.article-content ul,
.article-content ol {
  margin: 0 0 20px;
  padding-left: 24px;
}
.article-content li {
  margin-bottom: 10px;
}
.article-content ul li::marker {
  color: var(--accent);
}
.article-content blockquote {
  background: #f8f7f2;
  border-left: 4px solid var(--accent);
  padding: 18px 24px;
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: #5b6475;
  margin: 24px 0;
}
.article-content img {
  border-radius: 14px;
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.92rem;
}
.article-content table th {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
.article-content table td {
  padding: 12px 16px;
  border: 1px solid #eef0f3;
}
.article-content table tr:nth-child(even) td {
  background: #fafbfc;
}
@media (max-width: 768px) {
  .article-card { padding: 24px 20px; border-radius: 16px; }
  .article-cover { height: 220px; }
  .article-content { font-size: 0.96rem; }
}
.not-found {
  text-align: center;
  padding: 80px 20px;
}
.not-found i {
  font-size: 3.5rem;
  color: var(--accent);
  margin-bottom: 24px;
  display: block;
}
.not-found h2 {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 12px;
}
.not-found p {
  color: var(--muted-text);
  margin-bottom: 28px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: linear-gradient(135deg, #1a3a6b 0%, #28527f 100%);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 100px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 16px rgba(26, 58, 107, 0.25);
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(26, 58, 107, 0.32);
}
.btn-primary:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== 侧边栏 ===== */
.sidebar { display: flex; flex-direction: column; gap: 28px; }
.sidebar-card {
  background: #fff;
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(26, 58, 107, 0.05);
}
.sidebar-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(201, 162, 75, 0.25);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-card h3 i {
  color: var(--accent);
  font-size: 0.95rem;
}
.sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sidebar-list li {
  margin-bottom: 6px;
}
.sidebar-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 0.92rem;
  color: #4b5563;
  transition: background 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}
.sidebar-list a:hover {
  background: rgba(26, 58, 107, 0.05);
  color: var(--primary);
  padding-left: 18px;
}
.sidebar-list a i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}
.latest-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.latest-list li {
  margin-bottom: 4px;
}
.latest-list a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.9rem;
  color: #4b5563;
  line-height: 1.6;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  border-left: 3px solid transparent;
}
.latest-list a:hover {
  background: rgba(201, 162, 75, 0.08);
  color: var(--primary);
  border-left-color: var(--accent);
  transform: translateX(4px);
}
.contact-card {
  background: linear-gradient(145deg, #f8fafc 0%, #f0f3f8 100%);
  border-color: rgba(26, 58, 107, 0.08);
}
.contact-card p {
  font-size: 0.92rem;
  color: var(--muted-text);
  margin-bottom: 20px;
  line-height: 1.7;
}
.contact-card .btn-primary {
  width: 100%;
  justify-content: center;
  background: linear-gradient(135deg, #c9a24b 0%, #b58b36 100%);
  box-shadow: 0 4px 14px rgba(201, 162, 75, 0.28);
}
.contact-card .btn-primary:hover {
  box-shadow: 0 8px 24px rgba(201, 162, 75, 0.36);
}

/* ===== 推荐阅读 ===== */
.related-section {
  background: #fff;
  padding: 64px 0;
  border-top: 1px solid rgba(26, 58, 107, 0.06);
}
.section-header {
  text-align: center;
  margin-bottom: 44px;
}
.section-header h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}
.section-header p {
  color: var(--muted-text);
  font-size: 1rem;
}
.related-card {
  display: block;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(26, 58, 107, 0.06);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.related-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-lg);
}
.related-card-img {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-card-img img {
  transform: scale(1.05);
}
.related-card-body {
  padding: 22px 20px;
}
.related-card-body .badge {
  font-size: 0.72rem;
  padding: 3px 12px;
  margin-bottom: 12px;
  background: rgba(201, 162, 75, 0.14);
  color: #9a7a2d;
}
.related-card-body h3 {
  font-size: 1.02rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card-body p {
  font-size: 0.85rem;
  color: var(--muted-text);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 80px 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(18, 42, 77, 0.92) 0%, rgba(26, 58, 107, 0.85) 50%, rgba(201, 162, 75, 0.65) 100%);
}
.cta-section .container {
  position: relative;
  z-index: 2;
  text-align: center;
}
.cta-title {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
  line-height: 1.3;
}
.cta-text {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto 34px;
  line-height: 1.8;
}
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 40px;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 100px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: 0 6px 24px rgba(201, 162, 75, 0.4);
  border: none;
  cursor: pointer;
}
.btn-accent:hover {
  background: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(201, 162, 75, 0.5);
}
.btn-accent:focus {
  outline: 2px solid #fff;
  outline-offset: 3px;
}
@media (max-width: 768px) {
  .cta-section { background-attachment: scroll; padding: 60px 0; }
  .cta-title { font-size: 1.5rem; }
}

/* ===== 页脚 ===== */
.footer {
  background: #122032;
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 0;
}
.footer .container {
  padding-bottom: 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 44px;
}
.footer-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .logo .logo-mark {
  background: linear-gradient(135deg, #c9a24b 0%, #b58b36 100%);
  box-shadow: 0 4px 16px rgba(201, 162, 75, 0.25);
}
.footer-desc {
  font-size: 0.92rem;
  line-height: 1.8;
  max-width: 360px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 14px;
}
.footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-links a:hover {
  color: var(--accent-light);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== 分享按钮 ===== */
.share-box {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid #eef0f3;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.share-box span {
  font-size: 0.92rem;
  font-weight: 600;
  color: #6b7280;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #f1f4f8;
  color: #7a8496;
  font-size: 0.9rem;
  transition: all 0.25s ease;
}
.share-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(26, 58, 107, 0.2);
}

/* ===== 通用间距 ===== */
.section-padding { padding: 64px 0; }
.mt-40 { margin-top: 40px; }
.separator {
  border: 0;
  border-top: 1px solid rgba(26, 58, 107, 0.08);
  margin: 48px auto;
  max-width: 100px;
}

/* roulang page: category1 */
:root {
        --primary: #0f2b52;
        --primary-light: #1a3d6e;
        --primary-soft: #e8edf5;
        --accent: #c9a35f;
        --accent-hover: #b8924e;
        --bg: #f7f8fb;
        --white: #ffffff;
        --text: #1a2740;
        --text-muted: #5b6b85;
        --border: #e4e9f1;
        --radius: 16px;
        --radius-sm: 10px;
        --radius-lg: 24px;
        --shadow: 0 10px 40px rgba(15, 43, 82, 0.08);
        --shadow-lg: 0 20px 60px rgba(15, 43, 82, 0.14);
        --container: 1200px;
        --transition: all 0.3s ease;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        font-size: 16px;
        line-height: 1.75;
        color: var(--text);
        background-color: var(--bg);
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

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

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

    button,
    input,
    textarea,
    select {
        font-family: inherit;
        font-size: inherit;
        border: none;
        outline: none;
        background: none;
    }

    .container {
        max-width: var(--container);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    /* 导航 */
    .navbar {
        position: fixed;
        top: 16px;
        left: 0;
        right: 0;
        z-index: 1000;
        padding: 0 20px;
        pointer-events: none;
    }

    .navbar .inner {
        background: rgba(255, 255, 255, 0.88);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-radius: 60px;
        box-shadow: 0 8px 32px rgba(15, 43, 82, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.7);
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 24px;
        max-width: var(--container);
        margin: 0 auto;
        pointer-events: auto;
        gap: 16px;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }

    .logo-mark {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        background: var(--primary);
        color: #fff;
        font-size: 18px;
        font-weight: 700;
        display: flex;
        align-items: center;
        justify-content: center;
        letter-spacing: 0;
    }

    .logo-text {
        font-size: 18px;
        font-weight: 700;
        color: var(--text);
        letter-spacing: 0.5px;
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 6px;
        margin-left: auto;
    }

    .nav-link {
        padding: 8px 18px;
        border-radius: 40px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-muted);
        white-space: nowrap;
        transition: var(--transition);
    }

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

    .nav-link.active {
        color: #fff;
        background: var(--primary);
        font-weight: 600;
        box-shadow: 0 4px 14px rgba(15, 43, 82, 0.2);
    }

    .nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--accent);
        color: #fff;
        font-size: 14px;
        font-weight: 600;
        padding: 10px 22px;
        border-radius: 40px;
        box-shadow: 0 4px 16px rgba(201, 163, 95, 0.35);
        transition: var(--transition);
        white-space: nowrap;
    }

    .nav-cta:hover {
        background: var(--accent-hover);
        transform: translateY(-2px);
        box-shadow: 0 6px 22px rgba(201, 163, 95, 0.45);
        color: #fff;
    }

    .nav-toggle {
        display: none;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: var(--primary-soft);
        color: var(--primary);
        font-size: 18px;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: var(--transition);
        flex-shrink: 0;
        border: 1px solid rgba(15, 43, 82, 0.08);
    }

    .nav-toggle:hover {
        background: var(--primary);
        color: #fff;
    }

    .nav-links.open {
        display: flex !important;
    }

    /* 页面 Hero */
    .page-hero {
        position: relative;
        padding: 180px 0 110px;
        background: linear-gradient(135deg, #0b1f3d 0%, #142e55 52%, #1e4477 100%);
        overflow: hidden;
    }

    .page-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        opacity: 0.22;
        z-index: 0;
    }

    .page-hero::after {
        content: "";
        position: absolute;
        width: 420px;
        height: 420px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(201, 163, 95, 0.18), transparent 70%);
        top: -120px;
        right: -80px;
        z-index: 0;
    }

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

    .page-hero .breadcrumb {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.72);
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.14);
        border-radius: 30px;
        padding: 6px 18px;
        margin-bottom: 28px;
        backdrop-filter: blur(8px);
    }

    .page-hero .breadcrumb a {
        color: rgba(255, 255, 255, 0.8);
    }

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

    .page-hero h1 {
        font-size: clamp(34px, 5vw, 56px);
        line-height: 1.25;
        font-weight: 800;
        color: #fff;
        letter-spacing: 1px;
        max-width: 700px;
        margin-bottom: 20px;
    }

    .page-hero .hero-desc {
        font-size: clamp(15px, 2vw, 18px);
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.85);
        max-width: 680px;
        margin-bottom: 36px;
    }

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

    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--accent);
        color: #fff;
        font-weight: 600;
        font-size: 15px;
        padding: 14px 32px;
        border-radius: 40px;
        box-shadow: 0 6px 24px rgba(201, 163, 95, 0.4);
        transition: var(--transition);
    }

    .btn-primary:hover {
        background: var(--accent-hover);
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(201, 163, 95, 0.5);
        color: #fff;
    }

    .btn-outline-light {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.35);
        color: #fff;
        font-weight: 600;
        font-size: 15px;
        padding: 14px 32px;
        border-radius: 40px;
        transition: var(--transition);
        backdrop-filter: blur(8px);
    }

    .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.2);
        border-color: rgba(255, 255, 255, 0.6);
        color: #fff;
        transform: translateY(-2px);
    }

    /* 数据条 */
    .stats-strip {
        margin-top: -60px;
        position: relative;
        z-index: 5;
        padding-bottom: 20px;
    }

    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        background: var(--white);
        border-radius: 20px;
        box-shadow: 0 16px 50px rgba(15, 43, 82, 0.1);
        border: 1px solid var(--border);
        overflow: hidden;
    }

    .stat-cell {
        padding: 32px 24px;
        text-align: center;
        border-right: 1px solid var(--border);
        transition: var(--transition);
    }

    .stat-cell:last-child {
        border-right: none;
    }

    .stat-cell:hover {
        background: var(--primary-soft);
    }

    .stat-number {
        font-size: 36px;
        font-weight: 800;
        color: var(--primary);
        line-height: 1.2;
    }

    .stat-label {
        font-size: 14px;
        color: var(--text-muted);
        margin-top: 6px;
    }

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

    .section-head {
        text-align: center;
        max-width: 720px;
        margin: 0 auto 56px;
    }

    .section-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 600;
        color: var(--accent);
        background: rgba(201, 163, 95, 0.1);
        border: 1px solid rgba(201, 163, 95, 0.2);
        border-radius: 30px;
        padding: 5px 16px;
        margin-bottom: 16px;
    }

    .section-head h2 {
        font-size: clamp(26px, 3.5vw, 40px);
        font-weight: 800;
        color: var(--text);
        line-height: 1.3;
        margin-bottom: 14px;
    }

    .section-head p {
        font-size: 15px;
        color: var(--text-muted);
        line-height: 1.8;
    }

    /* 服务卡片 */
    .service-card {
        background: var(--white);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        overflow: hidden;
        transition: var(--transition);
        height: 100%;
        display: flex;
        flex-direction: column;
    }

    .service-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(201, 163, 95, 0.4);
    }

    .service-card .card-cover {
        height: 180px;
        position: relative;
        overflow: hidden;
    }

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

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

    .service-card .card-cover::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(15, 43, 82, 0.05), rgba(15, 43, 82, 0.35));
    }

    .service-card .card-tag {
        position: absolute;
        top: 14px;
        left: 14px;
        z-index: 2;
        background: rgba(255, 255, 255, 0.92);
        color: var(--primary);
        font-size: 12px;
        font-weight: 600;
        padding: 4px 14px;
        border-radius: 30px;
        backdrop-filter: blur(8px);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    }

    .service-card .card-body {
        padding: 28px 26px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

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

    .service-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.75;
        margin-bottom: 20px;
        flex: 1;
    }

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

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

    .card-link:hover {
        color: var(--accent);
    }

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

    /* 流程 */
    .process-section {
        background: linear-gradient(180deg, #f0f3f9 0%, #e8edf5 100%);
        position: relative;
        overflow: hidden;
    }

    .process-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 24px;
    }

    .step-card {
        background: var(--white);
        border-radius: var(--radius);
        padding: 32px 24px;
        text-align: center;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        position: relative;
        transition: var(--transition);
    }

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

    .step-number {
        width: 48px;
        height: 48px;
        margin: 0 auto 18px;
        border-radius: 50%;
        background: var(--primary);
        color: #fff;
        font-size: 17px;
        font-weight: 700;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        z-index: 1;
        box-shadow: 0 6px 18px rgba(15, 43, 82, 0.25);
    }

    .step-card:nth-child(1) .step-number {
        background: #c9a35f;
        box-shadow: 0 6px 18px rgba(201, 163, 95, 0.35);
    }

    .step-card h4 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 8px;
    }

    .step-card p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.7;
    }

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

    /* 图文区 */
    .feature-section {
        background: var(--white);
    }

    .feature-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }

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

    .feature-media img {
        width: 100%;
        height: 420px;
        object-fit: cover;
    }

    .feature-media::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(15, 43, 82, 0.08), rgba(15, 43, 82, 0.2));
        border-radius: var(--radius-lg);
    }

    .feature-media .badge {
        position: absolute;
        bottom: 20px;
        left: 20px;
        right: 20px;
        z-index: 2;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(12px);
        border-radius: 14px;
        padding: 16px 20px;
        border: 1px solid rgba(255, 255, 255, 0.6);
        display: flex;
        align-items: center;
        gap: 14px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }

    .feature-media .badge i {
        font-size: 24px;
        color: var(--accent);
    }

    .feature-media .badge strong {
        font-size: 14px;
        color: var(--text);
        display: block;
        line-height: 1.4;
    }

    .feature-media .badge span {
        font-size: 12px;
        color: var(--text-muted);
    }

    .feature-list {
        list-style: none;
        margin-top: 20px;
    }

    .feature-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        padding: 12px 0;
        border-bottom: 1px solid var(--border);
        font-size: 14px;
        color: var(--text);
        line-height: 1.7;
    }

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

    .feature-list i {
        color: var(--accent);
        font-size: 15px;
        margin-top: 5px;
    }

    /* 标签 */
    .tags-section {
        background: var(--bg);
    }

    .tags-wrap {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
        max-width: 840px;
        margin: 0 auto;
    }

    .tag-item {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: 40px;
        padding: 10px 20px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text);
        box-shadow: 0 2px 8px rgba(15, 43, 82, 0.04);
        transition: var(--transition);
    }

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

    .tag-item:hover {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(15, 43, 82, 0.15);
    }

    .tag-item:hover i {
        color: #fff;
    }

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

    .faq-list {
        max-width: 860px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 14px;
    }

    .faq-item {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 0;
        transition: var(--transition);
    }

    .faq-item:hover {
        border-color: rgba(201, 163, 95, 0.4);
        box-shadow: var(--shadow);
    }

    .faq-item summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 22px 28px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        list-style: none;
    }

    .faq-item summary::-webkit-details-marker {
        display: none;
    }

    .faq-item summary i {
        color: var(--accent);
        font-size: 14px;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: rgba(201, 163, 95, 0.12);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        transition: transform 0.3s ease;
    }

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

    .faq-item .faq-answer {
        padding: 0 28px 22px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.85;
        border-top: 1px dashed var(--border);
        padding-top: 18px;
        margin-top: 4px;
    }

    /* CTA */
    .cta-section {
        padding: 100px 0;
    }

    .cta-box {
        background: linear-gradient(135deg, #0b1f3d 0%, #1a3d6e 60%, #2c5282 100%);
        border-radius: var(--radius-lg);
        padding: 60px 70px;
        position: relative;
        overflow: hidden;
        color: #fff;
    }

    .cta-box::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        opacity: 0.15;
    }

    .cta-box::after {
        content: "";
        position: absolute;
        width: 280px;
        height: 280px;
        border-radius: 50%;
        background: rgba(201, 163, 95, 0.2);
        filter: blur(60px);
        bottom: -60px;
        right: 20px;
    }

    .cta-content {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 1.4fr 1fr;
        gap: 40px;
        align-items: center;
    }

    .cta-box h2 {
        font-size: clamp(26px, 3vw, 38px);
        font-weight: 800;
        margin-bottom: 14px;
        line-height: 1.3;
    }

    .cta-box p {
        font-size: 15px;
        color: rgba(255, 255, 255, 0.8);
        line-height: 1.8;
        margin-bottom: 24px;
    }

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

    .cta-right {
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(12px);
        border-radius: var(--radius);
        padding: 28px;
    }

    .cta-right h4 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .cta-right p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.75);
        margin-bottom: 16px;
    }

    .cta-input {
        width: 100%;
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        padding: 10px 16px;
        color: #fff;
        font-size: 14px;
        margin-bottom: 10px;
        transition: var(--transition);
    }

    .cta-input::placeholder {
        color: rgba(255, 255, 255, 0.5);
    }

    .cta-input:focus {
        border-color: var(--accent);
        background: rgba(255, 255, 255, 0.16);
        box-shadow: 0 0 0 3px rgba(201, 163, 95, 0.15);
    }

    .cta-btn {
        width: 100%;
        background: var(--accent);
        color: #fff;
        font-weight: 600;
        border-radius: 10px;
        padding: 12px;
        font-size: 14px;
        cursor: pointer;
        transition: var(--transition);
    }

    .cta-btn:hover {
        background: var(--accent-hover);
    }

    /* 页脚 */
    .footer {
        background: #0b1f3d;
        color: rgba(255, 255, 255, 0.7);
        padding: 70px 0 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr;
        gap: 50px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand .logo-text {
        color: #fff;
    }

    .footer-desc {
        font-size: 14px;
        line-height: 1.8;
        margin-top: 18px;
        max-width: 360px;
        color: rgba(255, 255, 255, 0.6);
    }

    .footer h4 {
        color: #fff;
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 18px;
    }

    .footer-links {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

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

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

    .footer-bottom {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        padding: 24px 0;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.4);
    }

    /* 响应式 */
    @media (max-width: 1024px) {
        .process-grid {
            grid-template-columns: repeat(3, 1fr);
        }
        .step-arrow {
            display: none;
        }
        .feature-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .feature-media img {
            height: 340px;
        }
        .cta-box {
            padding: 44px 40px;
        }
        .cta-content {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 768px) {
        .navbar {
            top: 10px;
            padding: 0 12px;
        }
        .navbar .inner {
            padding: 10px 16px;
        }
        .nav-links {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            left: 12px;
            right: 12px;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(18px);
            border-radius: 20px;
            box-shadow: 0 20px 50px rgba(15, 43, 82, 0.18);
            padding: 16px;
            flex-direction: column;
            align-items: stretch;
            gap: 8px;
            border: 1px solid var(--border);
            z-index: 999;
        }
        .nav-link {
            display: block;
            text-align: center;
            padding: 12px;
        }
        .nav-cta {
            display: none;
        }
        .nav-toggle {
            display: flex;
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .stat-cell {
            border-bottom: 1px solid var(--border);
        }
        .stat-cell:nth-child(2) {
            border-right: none;
        }
        .stat-cell:nth-child(3),
        .stat-cell:nth-child(4) {
            border-bottom: none;
        }
        .section {
            padding: 70px 0;
        }
        .process-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
            padding-bottom: 30px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

    @media (max-width: 520px) {
        .logo-text {
            font-size: 16px;
        }
        .page-hero {
            padding: 150px 0 80px;
        }
        .page-hero h1 {
            font-size: 30px;
        }
        .hero-buttons .btn-primary,
        .hero-buttons .btn-outline-light {
            width: 100%;
            justify-content: center;
        }
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .stat-cell {
            border-right: none;
            border-bottom: 1px solid var(--border);
            padding: 22px 16px;
        }
        .stat-cell:last-child {
            border-bottom: none;
        }
        .stat-number {
            font-size: 28px;
        }
        .process-grid {
            grid-template-columns: 1fr;
        }
        .step-card {
            padding: 24px 20px;
        }
        .cta-box {
            padding: 36px 24px;
        }
        .cta-actions .btn-primary,
        .cta-actions .btn-outline-light {
            width: 100%;
            justify-content: center;
        }
        .faq-item summary {
            padding: 18px 20px;
            font-size: 15px;
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            padding-top: 14px;
        }
        .feature-media img {
            height: 260px;
        }
        .nav-links.open {
            display: flex !important;
        }
    }

    @media (min-width: 768px) {
        .nav-links {
            display: flex !important;
        }
    }

/* roulang page: category2 */
:root {
            --primary: #3366ff;
            --primary-dark: #1a45e5;
            --primary-50: #eef5ff;
            --accent: #f59e0b;
            --bg-body: #ffffff;
            --bg-soft: #f8fafc;
            --text-main: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 8px 40px rgba(15, 23, 42, 0.12);
            --transition-base: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-body);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== 导航栏 ===== */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 999px;
            padding: 0.75rem 1.5rem;
            box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
            margin: 1rem auto;
            max-width: 1200px;
            width: calc(100% - 3rem);
            transition: var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.7);
        }

        .navbar.scrolled {
            box-shadow: 0 6px 32px rgba(15, 23, 42, 0.12);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            flex-shrink: 0;
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #3366ff, #1a45e5);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(51, 102, 255, 0.3);
        }

        .logo-text {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 0.55rem 1.2rem;
            font-weight: 500;
            font-size: 0.94rem;
            color: var(--text-body);
            border-radius: 999px;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            background: var(--primary-50);
            color: var(--primary-dark);
        }

        .nav-link.active {
            background: #3366ff;
            color: #ffffff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(51, 102, 255, 0.25);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.55rem 1.4rem;
            background: linear-gradient(135deg, #3366ff, #1a45e5);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 999px;
            box-shadow: 0 4px 14px rgba(51, 102, 255, 0.3);
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(51, 102, 255, 0.4);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--primary-50);
            color: var(--primary-dark);
            font-size: 1.2rem;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: #dbe7ff;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 4.5rem 0 2rem;
            margin-top: 5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 3rem;
            padding-bottom: 3rem;
            border-bottom: 1px solid rgba(148, 163, 184, 0.15);
        }

        .footer .logo {
            margin-bottom: 1.25rem;
        }

        .footer .logo-mark {
            background: linear-gradient(135deg, #4d7fff, #1a45e5);
        }

        .footer .logo-text {
            color: #ffffff;
        }

        .footer-desc {
            font-size: 0.92rem;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 360px;
        }

        .footer h4 {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: #94a3b8;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .footer-links a:hover {
            color: #ffffff;
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 2rem;
            font-size: 0.85rem;
            color: #64748b;
            gap: 1rem;
            flex-wrap: wrap;
        }

        /* ===== Hero 区块 ===== */
        .category-hero {
            position: relative;
            padding: 6rem 0 5rem;
            background: linear-gradient(135deg, #0b152e, #12214d 60%, #162d78);
            overflow: hidden;
            border-radius: 0 0 40px 40px;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(51, 102, 255, 0.35), transparent 70%);
            pointer-events: none;
        }

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

        .category-hero .badge-hero {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(51, 102, 255, 0.2);
            border: 1px solid rgba(51, 102, 255, 0.4);
            color: #a8c2ff;
            font-size: 0.82rem;
            font-weight: 600;
            padding: 0.4rem 1.1rem;
            border-radius: 999px;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
        }

        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            max-width: 700px;
            letter-spacing: -0.02em;
            margin-bottom: 1.1rem;
        }

        .category-hero p {
            font-size: 1.05rem;
            color: #a8b7d9;
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .hero-btns {
            display: flex;
            gap: 0.9rem;
            flex-wrap: wrap;
        }

        .btn-primary, .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            padding: 0.8rem 1.8rem;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 999px;
            transition: var(--transition-base);
        }

        .btn-primary {
            background: linear-gradient(135deg, #3366ff, #1a45e5);
            color: #fff;
            box-shadow: 0 4px 18px rgba(51, 102, 255, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(51, 102, 255, 0.5);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.18);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 3.5rem;
            padding-top: 2.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            max-width: 680px;
        }

        .hero-stat-item h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
        }

        .hero-stat-item span {
            font-size: 0.85rem;
            color: #94a3b8;
        }

        /* ===== 筛选区 ===== */
        .section-padding {
            padding: 5rem 0;
        }

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

        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: wrap;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 1.1rem 1.5rem;
            box-shadow: var(--shadow-card);
            margin-bottom: 2.5rem;
        }

        .filter-tabs {
            display: flex;
            gap: 0.45rem;
            flex-wrap: wrap;
        }

        .filter-tab {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.5rem 1.15rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-body);
            background: transparent;
            border-radius: 999px;
            transition: var(--transition-base);
        }

        .filter-tab:hover {
            background: var(--primary-50);
            color: var(--primary-dark);
        }

        .filter-tab.active {
            background: #3366ff;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(51, 102, 255, 0.25);
        }

        .filter-search {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 0.45rem 1.1rem;
            min-width: 240px;
            transition: var(--transition-base);
        }

        .filter-search:focus-within {
            border-color: #3366ff;
            box-shadow: 0 0 0 3px rgba(51, 102, 255, 0.12);
            background: #ffffff;
        }

        .filter-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .filter-search input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 0.88rem;
            color: var(--text-body);
            width: 100%;
        }

        /* ===== 资讯卡片 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

        .news-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: #bcd4ff;
        }

        .news-card-image {
            position: relative;
            padding-top: 58%;
            overflow: hidden;
        }

        .news-card-image img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .news-card-image .tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
        }

        .news-card-body {
            padding: 1.6rem 1.7rem 1.8rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 0.9rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.6rem;
            flex-wrap: wrap;
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 0.7rem;
            transition: var(--transition-base);
        }

        .news-card h3 a:hover {
            color: var(--primary);
        }

        .news-card p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 1.2rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-footer {
            margin-top: auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid var(--bg-soft);
        }

        .news-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
        }

        .news-link:hover {
            gap: 0.65rem;
            color: var(--primary-dark);
        }

        .reading-time {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .news-card.main-news {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 0;
        }

        .news-card.main-news .news-card-image {
            padding-top: 0;
            min-height: 100%;
        }

        .news-card.main-news .news-card-image img {
            position: absolute;
        }

        /* ===== 热点专题 ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        .topic-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.4rem;
            text-align: center;
            transition: var(--transition-base);
            box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
        }

        .topic-card:hover {
            border-color: #bcd4ff;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .topic-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--primary-50);
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 0.9rem;
        }

        .topic-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.35rem;
        }

        .topic-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 数据区块 ===== */
        .stats-section {
            position: relative;
            background: linear-gradient(135deg, #0f172a, #162d78);
            padding: 4.5rem 0;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
        }

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

        .stats-item {
            text-align: center;
            padding: 1.5rem 1rem;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
        }

        .stats-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            font-family: 'Segoe UI', sans-serif;
        }

        .stats-item .label {
            font-size: 0.85rem;
            color: #94a3b8;
            margin-top: 0.4rem;
        }

        /* ===== 列表区块 ===== */
        .list-section {
            padding: 5rem 0;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 3rem;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-50);
            padding: 0.35rem 1.2rem;
            border-radius: 999px;
            margin-bottom: 1rem;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.35;
            letter-spacing: -0.02em;
        }

        .section-head p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 0.8rem;
            line-height: 1.7;
        }

        .timeline-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            counter-reset: timeline;
        }

        .timeline-item {
            position: relative;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.6rem 1.8rem 1.6rem 3.8rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

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

        .timeline-item::before {
            counter-increment: timeline;
            content: counter(timeline, decimal-leading-zero);
            position: absolute;
            left: 1.2rem;
            top: 1.5rem;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            background: var(--primary-50);
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
        }

        .timeline-item h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.4rem;
        }

        .timeline-item p {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-soft);
            padding: 5rem 0;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.2rem;
            max-width: 960px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.4rem 1.6rem;
            transition: var(--transition-base);
            box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
        }

        .faq-item:hover {
            border-color: #bcd4ff;
            box-shadow: var(--shadow-card);
        }

        .faq-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }

        .faq-item h4::before {
            content: 'Q';
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            background: var(--primary-50);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 800;
            border-radius: 8px;
        }

        .faq-item p {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.75;
            padding-left: 2rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 5rem 0 2rem;
        }

        .cta-box {
            position: relative;
            background: linear-gradient(135deg, #1a45e5, #3366ff 70%, #4d7fff);
            border-radius: 28px;
            padding: 3.5rem 3rem;
            overflow: hidden;
            text-align: center;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-box .container {
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
            line-height: 1.35;
        }

        .cta-box p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: #ffffff;
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.9rem 2.2rem;
            border-radius: 999px;
            transition: var(--transition-base);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }

        /* ===== 分页 ===== */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
            margin-top: 3rem;
        }

        .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            color: var(--text-body);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition-base);
        }

        .page-link:hover {
            border-color: #3366ff;
            color: var(--primary);
            background: var(--primary-50);
        }

        .page-link.active {
            background: #3366ff;
            color: #fff;
            border-color: #3366ff;
            box-shadow: 0 4px 12px rgba(51, 102, 255, 0.25);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .navbar {
                padding: 0.65rem 1.1rem;
                width: calc(100% - 2rem);
            }

            .nav-links {
                gap: 0.1rem;
            }

            .nav-link {
                padding: 0.5rem 0.8rem;
                font-size: 0.86rem;
            }

            .nav-cta {
                padding: 0.5rem 1rem;
                font-size: 0.82rem;
            }

            .category-hero h1 {
                font-size: 2.2rem;
            }

            .news-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.4rem;
            }

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

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

        @media (max-width: 768px) {
            .navbar {
                flex-wrap: wrap;
                border-radius: 20px;
                padding: 0.65rem 1rem;
                position: sticky;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.3rem;
                padding: 0.8rem 0 0.4rem;
                border-top: 1px solid var(--bg-soft);
                margin-top: 0.5rem;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-link {
                width: 100%;
                justify-content: center;
                padding: 0.6rem;
                font-size: 0.95rem;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .category-hero {
                padding: 4rem 0 3.5rem;
                border-radius: 0 0 24px 24px;
            }

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

            .category-hero p {
                font-size: 0.92rem;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 0.8rem;
                margin-top: 2.5rem;
                padding-top: 2rem;
            }

            .hero-stat-item h3 {
                font-size: 1.2rem;
            }

            .section-padding {
                padding: 3.5rem 0;
            }

            .section-head h2 {
                font-size: 1.5rem;
            }

            .filter-bar {
                padding: 0.9rem 1rem;
                flex-direction: column;
                align-items: stretch;
            }

            .filter-tabs {
                justify-content: center;
            }

            .filter-search {
                width: 100%;
                min-width: 0;
            }

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

            .news-card.main-news {
                grid-column: span 1;
                grid-template-columns: 1fr;
            }

            .news-card.main-news .news-card-image {
                padding-top: 58%;
            }

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

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }

            .stats-item .num {
                font-size: 1.6rem;
            }

            .cta-box {
                padding: 2.5rem 1.5rem;
                border-radius: 20px;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .footer {
                padding: 3.5rem 0 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.4rem;
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            html {
                font-size: 15px;
            }

            .container {
                padding-left: 1.1rem;
                padding-right: 1.1rem;
            }

            .navbar {
                width: calc(100% - 1.4rem);
                margin: 0.5rem auto;
                padding: 0.55rem 0.85rem;
            }

            .logo-text {
                font-size: 1rem;
            }

            .logo-mark {
                width: 34px;
                height: 34px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .nav-toggle {
                width: 38px;
                height: 38px;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

            .category-hero p {
                font-size: 0.88rem;
                margin-bottom: 1.5rem;
            }

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

            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                grid-template-columns: 1fr;
                gap: 0.6rem;
            }

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

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

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

            .news-card-body {
                padding: 1.2rem;
            }

            .news-meta {
                font-size: 0.75rem;
                gap: 0.5rem;
            }

            .section-head .eyebrow {
                font-size: 0.78rem;
            }

            .timeline-item {
                padding: 1.3rem 1.2rem 1.3rem 3.2rem;
            }

            .timeline-item::before {
                width: 32px;
                height: 32px;
                font-size: 1.05rem;
                left: 0.9rem;
                top: 1.3rem;
            }

            .faq-item {
                padding: 1.2rem 1rem;
            }

            .faq-item p {
                padding-left: 0;
                margin-top: 0.3rem;
            }

            .pagination {
                gap: 0.35rem;
            }

            .page-link {
                width: 38px;
                height: 38px;
                font-size: 0.82rem;
            }
        }

        @media (min-width: 769px) {
            .nav-toggle {
                display: none;
            }

            .nav-links {
                display: flex !important;
            }
        }