/* roulang page: index */
:root {
            --primary: #1a3c6e;
            --primary-light: #2a5298;
            --primary-dark: #0f2440;
            --accent: #d4a843;
            --accent-light: #e8c97a;
            --accent-dark: #b8922f;
            --bg-white: #ffffff;
            --bg-light: #f7f8fa;
            --bg-gray: #eef0f4;
            --bg-dark: #111827;
            --text-primary: #1a1d24;
            --text-secondary: #4a505c;
            --text-muted: #7a808c;
            --text-light: #a0a6b2;
            --border: #e2e6ee;
            --border-light: #eef1f6;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10), 0 3px 10px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12), 0 6px 20px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.16), 0 8px 28px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-height: 64px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
            padding-top: 100px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
        }

        /* 浮动Dock导航 */
        .nav-dock {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(226, 230, 238, 0.7);
            border-radius: 40px;
            padding: 6px 8px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }
        .nav-dock .nav-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            padding: 8px 18px 8px 14px;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
            border-radius: 32px;
            transition: background var(--transition-fast);
        }
        .nav-dock .nav-logo:hover {
            background: rgba(26, 60, 110, 0.05);
        }
        .nav-dock .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .nav-dock .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex-wrap: nowrap;
        }
        .nav-dock .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 9px 16px;
            border-radius: 28px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            position: relative;
        }
        .nav-dock .nav-links a:hover {
            color: var(--primary);
            background: rgba(26, 60, 110, 0.06);
        }
        .nav-dock .nav-links a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(26, 60, 110, 0.3);
        }
        .nav-dock .nav-links a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .nav-dock .nav-cta {
            margin-left: 4px;
            padding: 10px 20px;
            border-radius: 28px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent);
            color: #fff;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            box-shadow: 0 2px 8px rgba(212, 168, 67, 0.35);
        }
        .nav-dock .nav-cta:hover {
            background: var(--accent-dark);
            box-shadow: 0 4px 16px rgba(212, 168, 67, 0.5);
            transform: translateY(-1px);
        }
        .nav-dock .nav-cta:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            padding: 8px;
            cursor: pointer;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
        }

        /* 容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-narrow {
            max-width: 960px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 板块间距 */
        .section {
            padding: 72px 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-lg {
            padding: 96px 0;
        }

        /* Hero */
        .hero-bg {
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
        }
        .hero-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 36, 64, 0.82) 0%, rgba(26, 60, 110, 0.7) 40%, rgba(15, 36, 64, 0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }

        /* 卡片 */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .card-stat {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .card-stat:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .card-stat .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        .card-stat .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .card-stat .stat-icon {
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 8px;
        }

        /* 优势卡片 */
        .advantage-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: center;
        }
        .advantage-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--accent-light);
        }
        .advantage-card .adv-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(26, 60, 110, 0.08) 0%, rgba(42, 82, 152, 0.12) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .advantage-card:hover .adv-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 32px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 60, 110, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 22px rgba(26, 60, 110, 0.45);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(212, 168, 67, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 22px rgba(212, 168, 67, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.65);
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        /* 标签 */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .tag-primary {
            background: rgba(26, 60, 110, 0.08);
            color: var(--primary);
        }
        .tag-accent {
            background: rgba(212, 168, 67, 0.12);
            color: var(--accent-dark);
        }
        .tag-hot {
            background: #fef2f2;
            color: #dc2626;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            color: var(--primary);
        }
        .faq-icon {
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        /* 新闻 */
        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-card .news-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .news-card .news-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .news-card .news-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .news-card .news-excerpt {
            font-size: 0.88rem;
            color: var(--text-secondary);
            flex: 1;
            line-height: 1.6;
        }
        .news-card .news-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            margin-top: 12px;
            transition: gap var(--transition-fast);
        }
        .news-card .news-link:hover {
            gap: 10px;
            color: var(--primary-light);
        }

        /* 评价卡片 */
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .testimonial-card .quote-mark {
            font-size: 3rem;
            color: var(--accent-light);
            line-height: 1;
            opacity: 0.5;
            position: absolute;
            top: 16px;
            left: 20px;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-top: 20px;
        }
        .testimonial-card .testimonial-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            margin-top: 14px;
        }
        .testimonial-card .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-dark);
            color: #c9cdd6;
            padding: 56px 0 32px;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer a {
            color: #c9cdd6;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            margin-top: 36px;
            font-size: 0.82rem;
            color: #8a8f9a;
            text-align: center;
        }

        /* 搜索框 */
        .search-input {
            padding: 11px 18px;
            border-radius: 28px;
            border: 2px solid var(--border);
            font-size: 0.9rem;
            background: var(--bg-light);
            transition: all var(--transition-fast);
            outline: none;
            width: 200px;
        }
        .search-input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(26, 60, 110, 0.06);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            body {
                padding-top: 90px;
            }
            .nav-dock {
                top: 10px;
                border-radius: 32px;
                padding: 5px 6px;
                gap: 2px;
            }
            .nav-dock .nav-logo {
                font-size: 1.1rem;
                padding: 7px 12px 7px 10px;
            }
            .nav-dock .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
                border-radius: 8px;
            }
            .nav-dock .nav-links a {
                padding: 7px 12px;
                font-size: 0.82rem;
                border-radius: 22px;
            }
            .nav-dock .nav-cta {
                padding: 8px 16px;
                font-size: 0.8rem;
                border-radius: 22px;
            }
            .search-input {
                width: 140px;
                font-size: 0.8rem;
            }
            .section {
                padding: 52px 0;
            }
            .section-lg {
                padding: 68px 0;
            }
            .card-stat .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 78px;
            }
            .nav-dock {
                top: 8px;
                border-radius: 28px;
                padding: 4px 5px;
                gap: 0px;
                flex-wrap: nowrap;
                overflow-x: auto;
                justify-content: flex-start;
                scrollbar-width: none;
            }
            .nav-dock::-webkit-scrollbar {
                display: none;
            }
            .nav-dock .nav-logo {
                font-size: 1rem;
                padding: 6px 10px 6px 8px;
                gap: 6px;
            }
            .nav-dock .nav-logo .logo-icon {
                width: 24px;
                height: 24px;
                font-size: 0.7rem;
                border-radius: 6px;
            }
            .nav-dock .nav-links a {
                padding: 6px 10px;
                font-size: 0.78rem;
                border-radius: 18px;
            }
            .nav-dock .nav-cta {
                padding: 7px 14px;
                font-size: 0.76rem;
                border-radius: 18px;
                flex-shrink: 0;
            }
            .search-input {
                width: 100px;
                font-size: 0.75rem;
                padding: 8px 12px;
            }
            .mobile-menu-toggle {
                display: flex;
                flex-shrink: 0;
            }
            .nav-dock .nav-links {
                display: none;
            }
            .nav-dock.mobile-open .nav-links {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 8px;
                right: 8px;
                background: #fff;
                border-radius: 20px;
                padding: 10px 6px;
                box-shadow: var(--shadow-xl);
                margin-top: 8px;
                border: 1px solid var(--border-light);
                gap: 0;
            }
            .nav-dock.mobile-open .nav-links a {
                display: block;
                text-align: center;
                padding: 10px 16px;
                border-radius: 14px;
                width: 100%;
            }
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 52px 0;
            }
            .hero-bg {
                min-height: 420px;
            }
            .card-stat .stat-number {
                font-size: 1.7rem;
            }
            .card-stat {
                padding: 20px 16px;
            }
            .advantage-card {
                padding: 22px 16px;
            }
            h2 {
                font-size: 1.5rem !important;
            }
            h3 {
                font-size: 1.2rem !important;
            }
        }
        @media (max-width: 520px) {
            body {
                padding-top: 68px;
            }
            .nav-dock {
                top: 5px;
                border-radius: 22px;
                padding: 3px 4px;
                gap: 0;
            }
            .nav-dock .nav-logo {
                font-size: 0.88rem;
                padding: 5px 8px 5px 6px;
                gap: 4px;
            }
            .nav-dock .nav-logo .logo-icon {
                width: 20px;
                height: 20px;
                font-size: 0.6rem;
                border-radius: 5px;
            }
            .nav-dock .nav-cta {
                padding: 6px 10px;
                font-size: 0.7rem;
                border-radius: 14px;
            }
            .search-input {
                width: 70px;
                font-size: 0.7rem;
                padding: 6px 10px;
            }
            .section {
                padding: 32px 0;
            }
            .section-lg {
                padding: 40px 0;
            }
            .hero-bg {
                min-height: 340px;
            }
            .card-stat .stat-number {
                font-size: 1.4rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.85rem;
                border-radius: 24px;
            }
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a3c6e;
            --primary-dark: #0f2a52;
            --accent: #c8a84e;
            --accent-light: #e0c978;
            --bg: #f8f9fc;
            --surface: #ffffff;
            --text: #1e2a3a;
            --text-muted: #5f6b7a;
            --border: #e2e7ef;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.13);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Noto Sans SC", "Helvetica Neue", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 Dock ===== */
        .nav-dock {
            position: sticky;
            top: 16px;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 10px;
            max-width: 1180px;
            margin: 16px auto 0;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: 48px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(200, 168, 78, 0.25);
            transition: all var(--transition);
            flex-wrap: nowrap;
        }

        .nav-dock.scrolled {
            box-shadow: var(--shadow-xl);
            border-color: rgba(200, 168, 78, 0.45);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, #1e5091 100%);
            color: #fff;
            font-size: 0.95rem;
        }

        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
            flex: 1;
            justify-content: center;
            align-items: center;
            flex-wrap: nowrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 9px 16px;
            border-radius: 28px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(26, 60, 110, 0.06);
        }

        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(26, 60, 110, 0.35);
        }

        .nav-links a.active:hover {
            background: var(--primary-dark);
        }

        .search-input {
            padding: 9px 16px;
            border-radius: 24px;
            border: 1.5px solid var(--border);
            background: #f9fafb;
            font-size: 0.85rem;
            width: 160px;
            transition: all var(--transition);
            flex-shrink: 1;
            min-width: 120px;
        }

        .search-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 168, 78, 0.1);
            width: 200px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 28px;
            font-size: 0.88rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--accent) 0%, #b8942f 100%);
            color: #fff;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition);
            box-shadow: 0 3px 12px rgba(200, 168, 78, 0.3);
            letter-spacing: 0.02em;
        }

        .nav-cta:hover {
            background: linear-gradient(135deg, #b8942f 0%, #9e7d20 100%);
            box-shadow: 0 6px 20px rgba(200, 168, 78, 0.45);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 6px 10px;
            border-radius: 8px;
            transition: background var(--transition);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: rgba(26, 60, 110, 0.06);
        }

        /* ===== 分类页 Banner ===== */
        .category-banner {
            position: relative;
            background: linear-gradient(160deg, #0f2a52 0%, #1a3c6e 40%, #1e5091 100%);
            padding: 60px 0 70px;
            overflow: hidden;
            margin-top: -60px;
            padding-top: 120px;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--bg), transparent);
            z-index: 1;
        }

        .category-banner .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(200, 168, 78, 0.2);
            color: var(--accent-light);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            border: 1px solid rgba(200, 168, 78, 0.35);
        }

        .category-banner h1 {
            color: #fff;
            font-size: 2.8rem;
            font-weight: 700;
            margin: 0 0 14px;
            letter-spacing: 0.03em;
        }

        .category-banner .banner-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 660px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .banner-stats {
            display: flex;
            gap: 36px;
            flex-wrap: wrap;
            justify-content: center;
        }

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

        .banner-stat-item .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1.1;
        }

        .banner-stat-item .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 56px 0;
        }

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

        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            letter-spacing: 0.02em;
        }

        .section-header .subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .section-header .accent-line {
            display: block;
            width: 50px;
            height: 3px;
            background: var(--accent);
            margin: 10px auto 0;
            border-radius: 2px;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: rgba(200, 168, 78, 0.35);
        }

        .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e9ecf2;
        }

        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .card-badge-top {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--accent);
            color: #fff;
            z-index: 2;
            letter-spacing: 0.03em;
        }

        .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text);
            line-height: 1.4;
        }

        .card-body .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0 0 14px;
            flex: 1;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            transition: color var(--transition);
            align-self: flex-start;
        }

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

        .card-link i {
            transition: transform var(--transition);
        }

        .card-link:hover i {
            transform: translateX(3px);
        }

        /* ===== 列表样式 ===== */
        .insight-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .insight-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 18px;
            background: var(--surface);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .insight-list li:hover {
            border-color: rgba(200, 168, 78, 0.4);
            box-shadow: var(--shadow);
        }

        .insight-list .bullet-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(26, 60, 110, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.9rem;
        }

        .insight-list .item-content h4 {
            margin: 0 0 4px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
        }

        .insight-list .item-content p {
            margin: 0;
            font-size: 0.83rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: rgba(200, 168, 78, 0.4);
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: background var(--transition);
            text-align: left;
            gap: 12px;
        }

        .faq-question:hover {
            background: #f8f9fc;
        }

        .faq-question i {
            flex-shrink: 0;
            transition: transform var(--transition);
            color: var(--accent);
            font-size: 0.85rem;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA 板块 ===== */
        .cta-block {
            background: linear-gradient(150deg, #1a3c6e 0%, #0f2a52 100%);
            border-radius: var(--radius-lg);
            padding: 44px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.13;
            z-index: 0;
        }

        .cta-block>* {
            position: relative;
            z-index: 1;
        }

        .cta-block h3 {
            color: #fff;
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.75);
            margin: 0 0 20px;
            font-size: 1rem;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 30px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(200, 168, 78, 0.35);
            letter-spacing: 0.02em;
        }

        .btn-accent:hover {
            background: #b8942f;
            box-shadow: 0 8px 24px rgba(200, 168, 78, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 28px;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 60, 110, 0.3);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #121a28;
            color: #c0c7d4;
            padding: 48px 0 0;
            margin-top: auto;
        }

        .site-footer .container {
            padding-bottom: 0;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 4px;
        }

        .site-footer a {
            color: #a0a6b2;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 32px;
            padding: 20px 0;
            text-align: center;
            font-size: 0.82rem;
            color: #78808e;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-dock {
                flex-wrap: wrap;
                justify-content: center;
                gap: 8px;
                border-radius: 28px;
                padding: 10px 14px;
                top: 8px;
                margin-top: 8px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: center;
                gap: 2px;
                flex-wrap: wrap;
            }
            .nav-links a {
                padding: 7px 12px;
                font-size: 0.82rem;
            }
            .search-input {
                width: 130px;
                order: 2;
            }
            .nav-cta {
                order: 2;
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .category-banner {
                margin-top: -50px;
                padding-top: 100px;
                padding-bottom: 50px;
            }
            .category-banner h1 {
                font-size: 2.2rem;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
                gap: 18px;
            }
            .banner-stats {
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-dock {
                border-radius: 20px;
                padding: 8px 12px;
                gap: 6px;
                justify-content: space-between;
            }
            .mobile-menu-toggle {
                display: inline-flex;
                order: 3;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                order: 4;
                background: #fff;
                border-radius: 16px;
                padding: 8px;
                box-shadow: var(--shadow-lg);
                gap: 2px;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                justify-content: center;
                border-radius: 12px;
                padding: 10px;
            }
            .search-input {
                width: 100px;
                order: 2;
                flex-shrink: 2;
                min-width: 80px;
                font-size: 0.78rem;
            }
            .nav-cta {
                order: 2;
                padding: 7px 14px;
                font-size: 0.78rem;
                flex-shrink: 2;
            }
            .category-banner {
                margin-top: -40px;
                padding-top: 90px;
                padding-bottom: 40px;
            }
            .category-banner h1 {
                font-size: 1.7rem;
            }
            .category-banner .banner-desc {
                font-size: 0.9rem;
            }
            .banner-stats {
                gap: 16px;
            }
            .banner-stat-item .stat-num {
                font-size: 1.5rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section {
                padding: 36px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-block {
                padding: 30px 20px;
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .insight-list li {
                flex-direction: column;
                gap: 8px;
            }
            .site-footer {
                padding: 32px 0 0;
            }
            .site-footer .grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .nav-dock {
                border-radius: 16px;
                padding: 6px 10px;
                gap: 4px;
                top: 4px;
                margin-top: 4px;
            }
            .nav-logo {
                font-size: 1rem;
                gap: 4px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .search-input {
                width: 70px;
                min-width: 60px;
                font-size: 0.7rem;
                padding: 7px 10px;
            }
            .nav-cta {
                padding: 6px 10px;
                font-size: 0.7rem;
            }
            .category-banner {
                margin-top: -30px;
                padding-top: 70px;
                padding-bottom: 30px;
            }
            .category-banner h1 {
                font-size: 1.4rem;
            }
            .banner-stats {
                flex-direction: column;
                gap: 10px;
            }
            .banner-stat-item .stat-num {
                font-size: 1.3rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .cta-block h3 {
                font-size: 1.1rem;
            }
            .btn-accent {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
            .site-footer .grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 12px 16px;
            }
        }

/* roulang page: category4 */
:root {
            --brand-600: #1e3a5f;
            --brand-700: #182e4d;
            --brand-800: #12223b;
            --gold-500: #d4a853;
            --gold-600: #c49a3f;
            --bg-page: #f7f8fa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a5568;
            --text-muted: #8b93a5;
            --border-light: #e5e7eb;
            --border-soft: #edf0f4;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--gold-500);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }

        /* ===== 导航 Dock ===== */
        .nav-dock {
            position: sticky;
            top: 16px;
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            max-width: 1100px;
            margin: 16px auto 0;
            padding: 10px 20px;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: 40px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-soft);
            flex-wrap: nowrap;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--brand-600);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--gold-500);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-700));
            color: #fff;
            font-size: 0.95rem;
        }
        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
            flex-wrap: nowrap;
            align-items: center;
        }
        .nav-links li a {
            display: block;
            padding: 8px 15px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .nav-links li a:hover {
            background: #f0f4f8;
            color: var(--brand-600);
        }
        .nav-links li a.active {
            background: var(--brand-600);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(30, 58, 95, 0.3);
        }
        .search-input {
            border: 1.5px solid var(--border-light);
            border-radius: 24px;
            padding: 8px 16px;
            font-size: 0.88rem;
            outline: none;
            width: 150px;
            min-width: 100px;
            background: #f9fafb;
            transition: all var(--transition-fast);
            color: var(--text-primary);
        }
        .search-input:focus {
            border-color: var(--brand-600);
            box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
            width: 180px;
            background: #fff;
        }
        .search-input::placeholder {
            color: #b0b8c4;
        }
        .nav-cta {
            display: inline-block;
            padding: 9px 20px;
            border-radius: 24px;
            background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
            color: #fff !important;
            font-weight: 600;
            font-size: 0.88rem;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-base);
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(212, 168, 83, 0.45);
            color: #fff !important;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--brand-600);
            padding: 6px;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: #f0f4f8;
        }

        @media (max-width: 1024px) {
            .nav-dock {
                border-radius: 28px;
                padding: 10px 16px;
                margin: 10px 12px 0;
                gap: 6px;
            }
            .nav-links li a {
                padding: 7px 11px;
                font-size: 0.82rem;
                border-radius: 20px;
            }
            .search-input {
                width: 110px;
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .search-input:focus {
                width: 140px;
            }
            .nav-cta {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 768px) {
            .nav-dock {
                flex-wrap: wrap;
                border-radius: 22px;
                padding: 10px 14px;
                gap: 8px;
                position: relative;
            }
            .mobile-menu-toggle {
                display: block;
                order: 2;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                order: 3;
                background: #fff;
                border-radius: 16px;
                padding: 8px;
                box-shadow: var(--shadow-md);
                gap: 2px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                border-radius: 12px;
                padding: 10px 16px;
                font-size: 0.9rem;
            }
            .search-input {
                order: 1;
                flex: 1;
                min-width: 0;
                width: auto;
            }
            .nav-cta {
                order: 2;
            }
            .nav-logo {
                order: 0;
                flex: 1;
            }
            .search-input:focus {
                width: auto;
            }
        }
        @media (max-width: 520px) {
            .nav-dock {
                margin: 6px 6px 0;
                padding: 8px 10px;
                border-radius: 18px;
                gap: 5px;
            }
            .nav-logo {
                font-size: 0.95rem;
                gap: 4px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .nav-cta {
                padding: 6px 10px;
                font-size: 0.74rem;
                border-radius: 18px;
            }
            .search-input {
                padding: 6px 10px;
                font-size: 0.74rem;
                border-radius: 18px;
            }
            .nav-links li a {
                font-size: 0.82rem;
                padding: 8px 12px;
            }
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 14px;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin: 28px 20px 0;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 34, 59, 0.82) 0%, rgba(24, 46, 77, 0.65) 40%, rgba(18, 34, 59, 0.78) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 50px 40px;
            max-width: 700px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 20px;
            background: rgba(212, 168, 83, 0.2);
            border: 1px solid rgba(212, 168, 83, 0.4);
            color: #f0d88a;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin: 0 0 14px;
            letter-spacing: -0.01em;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.7;
            margin: 0 0 24px;
            max-width: 560px;
        }
        .hero-stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            text-align: center;
            min-width: 70px;
        }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #f0d88a;
            line-height: 1.1;
        }
        .hero-stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 2px;
        }
        @media (max-width: 768px) {
            .hero-section {
                margin: 16px 10px 0;
                min-height: 340px;
                border-radius: var(--radius-lg);
            }
            .hero-content {
                padding: 32px 20px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 18px;
            }
            .hero-stat-num {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: 300px;
                margin: 10px 4px 0;
                border-radius: var(--radius-md);
            }
            .hero-content {
                padding: 24px 14px;
            }
            .hero-title {
                font-size: 1.4rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .hero-badge {
                font-size: 0.74rem;
                padding: 4px 12px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--gold-600);
            margin-bottom: 6px;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            margin: 0 0 32px;
            line-height: 1.6;
            max-width: 600px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
                margin-bottom: 24px;
            }
        }

        /* ===== 特色卡片 ===== */
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #dce6f0;
        }
        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: #f0f4f8;
            color: var(--brand-600);
            flex-shrink: 0;
        }
        .feature-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 专家卡片 ===== */
        .expert-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
        }
        .expert-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .expert-card-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }
        .expert-card-body {
            padding: 20px 18px;
        }
        .expert-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 4px;
        }
        .expert-tag {
            display: inline-block;
            font-size: 0.78rem;
            color: var(--gold-600);
            font-weight: 600;
            background: #fef9ee;
            padding: 3px 10px;
            border-radius: 14px;
            margin-bottom: 8px;
        }
        .expert-card-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.55;
        }
        @media (max-width: 520px) {
            .expert-card-img {
                height: 180px;
            }
        }

        /* ===== 文章列表卡片 ===== */
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .article-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #dce6f0;
        }
        .article-card-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .article-card-content {
            flex: 1;
            min-width: 0;
        }
        .article-card-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .article-card-content h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
            line-height: 1.35;
        }
        .article-card-content p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-link {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand-600);
            margin-top: 8px;
            transition: color var(--transition-fast);
        }
        .article-card-link:hover {
            color: var(--gold-500);
        }
        .article-card-link i {
            font-size: 0.7rem;
            margin-left: 2px;
            transition: transform var(--transition-fast);
        }
        .article-card-link:hover i {
            transform: translateX(3px);
        }
        @media (max-width: 520px) {
            .article-card {
                flex-direction: column;
                gap: 10px;
                padding: 16px;
            }
            .article-card-thumb {
                width: 100%;
                height: 160px;
                border-radius: var(--radius-sm);
            }
        }

        /* ===== 话题标签 ===== */
        .topic-tag {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 22px;
            font-size: 0.86rem;
            font-weight: 500;
            background: #f0f4f8;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            cursor: pointer;
        }
        .topic-tag:hover {
            background: var(--brand-600);
            color: #fff;
            border-color: var(--brand-600);
            box-shadow: 0 3px 10px rgba(30, 58, 95, 0.2);
        }

        /* ===== CTA板块 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-600) 0%, var(--brand-700) 50%, var(--brand-800) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn {
            display: inline-block;
            padding: 13px 32px;
            border-radius: 28px;
            background: var(--gold-500);
            color: #1a1a2e;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 18px rgba(212, 168, 83, 0.4);
        }
        .cta-btn:hover {
            background: #e8c96a;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 168, 83, 0.55);
            color: #1a1a2e;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .cta-btn {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background: #fafbfc;
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #f0f4f8;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--brand-600);
            transition: all var(--transition-fast);
        }
        .faq-item[open] summary .faq-icon {
            background: var(--brand-600);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #111827;
            color: #cbd5e1;
            padding: 48px 0 28px;
            margin-top: 40px;
        }
        .site-footer a {
            color: #cbd5e1;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: #f0d88a;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }
        .footer-bottom {
            border-top: 1px solid #1f2937;
            margin-top: 32px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #8b93a5;
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        /* ===== 分隔装饰 ===== */
        .divider-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gold-500);
            display: inline-block;
            margin: 0 8px;
            vertical-align: middle;
            opacity: 0.6;
        }

/* roulang page: category2 */
:root {
            --primary: #1a2744;
            --primary-light: #243656;
            --primary-dark: #111d33;
            --accent: #d4a853;
            --accent-light: #e8c97a;
            --accent-dark: #b8923a;
            --bg: #f8f9fb;
            --bg-white: #ffffff;
            --text: #1e293b;
            --text-muted: #64748b;
            --text-soft: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.14);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== 浮动Dock导航 ========== */
        .nav-dock {
            position: sticky;
            top: 16px;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 20px;
            max-width: 1100px;
            margin: 16px auto 0;
            padding: 10px 22px;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: 50px;
            box-shadow: var(--shadow-dock, 0 8px 32px rgba(0, 0, 0, 0.10));
            border: 1px solid rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
        }

        .nav-dock .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .nav-dock .nav-logo:hover {
            color: var(--accent-dark);
        }
        .nav-dock .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1rem;
        }

        .nav-dock .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
        }
        .nav-dock .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-dock .nav-links li a:hover {
            color: var(--primary);
            background: rgba(26, 39, 68, 0.05);
        }
        .nav-dock .nav-links li a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 39, 68, 0.25);
        }

        .nav-dock .search-input {
            width: 160px;
            padding: 8px 14px;
            border-radius: 24px;
            border: 1.5px solid var(--border);
            font-size: 0.85rem;
            color: var(--text);
            background: var(--bg);
            outline: none;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-dock .search-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.12);
            width: 200px;
        }
        .nav-dock .search-input::placeholder {
            color: var(--text-soft);
        }

        .nav-dock .nav-cta {
            display: inline-block;
            padding: 9px 20px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(212, 168, 83, 0.3);
        }
        .nav-dock .nav-cta:hover {
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            box-shadow: 0 6px 18px rgba(212, 168, 83, 0.4);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.3rem;
            color: var(--primary);
            padding: 6px 10px;
            border-radius: 8px;
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: rgba(26, 39, 68, 0.06);
        }

        @media (max-width: 1024px) {
            .nav-dock {
                gap: 10px;
                padding: 10px 16px;
                border-radius: 28px;
                top: 8px;
                margin: 8px 8px 0;
            }
            .nav-dock .search-input {
                width: 120px;
            }
            .nav-dock .search-input:focus {
                width: 150px;
            }
            .nav-dock .nav-links li a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .nav-dock .nav-cta {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-dock {
                flex-wrap: wrap;
                border-radius: 20px;
                padding: 12px 16px;
                gap: 8px;
                position: relative;
                top: 0;
                margin: 0;
                border-radius: 0;
                box-shadow: var(--shadow-sm);
                border: none;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-dock .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 2px;
                order: 10;
                background: #fff;
                border-radius: 12px;
                padding: 8px;
                box-shadow: var(--shadow);
            }
            .nav-dock .nav-links.open {
                display: flex;
            }
            .nav-dock .nav-links li a {
                border-radius: 8px;
                width: 100%;
                text-align: center;
                padding: 10px 16px;
                font-size: 0.9rem;
            }
            .nav-dock .search-input {
                display: none;
            }
            .nav-dock .nav-cta {
                margin-left: auto;
            }
            .mobile-menu-toggle {
                display: block;
                margin-left: auto;
                order: 2;
            }
            .nav-dock .nav-logo {
                order: 1;
            }
            .nav-dock .nav-cta {
                order: 3;
            }
        }

        @media (max-width: 520px) {
            .nav-dock {
                padding: 10px 12px;
                gap: 6px;
            }
            .nav-dock .nav-logo {
                font-size: 1rem;
            }
            .nav-dock .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .nav-dock .nav-cta {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }

        /* ========== 内页Banner ========== */
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0 70px;
            display: flex;
            align-items: center;
            min-height: 360px;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(26, 39, 68, 0.88) 0%,
                    rgba(26, 39, 68, 0.72) 50%,
                    rgba(17, 29, 51, 0.85) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .page-banner .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: rgba(212, 168, 83, 0.2);
            color: var(--accent-light);
            border: 1px solid rgba(212, 168, 83, 0.35);
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.25;
            letter-spacing: 0.02em;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 50px 0 44px;
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                padding: 36px 0 32px;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-desc {
                font-size: 0.85rem;
            }
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 64px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: rgba(212, 168, 83, 0.1);
            color: var(--accent-dark);
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 8px;
            letter-spacing: 0.01em;
        }
        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header .section-subtitle {
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 32px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
        }

        /* ========== 数据统计卡片 ========== */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 0 0 6px 6px;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .stat-card:hover::before {
            opacity: 1;
        }
        .stat-card .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.3rem;
            background: rgba(26, 39, 68, 0.06);
            color: var(--primary);
            transition: all var(--transition);
        }
        .stat-card:hover .stat-icon {
            background: var(--primary);
            color: #fff;
        }
        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        @media (max-width: 520px) {
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ========== 服务能力卡片 ========== */
        .service-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
            height: 100%;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .service-card .service-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: linear-gradient(135deg, rgba(26, 39, 68, 0.08), rgba(36, 54, 86, 0.12));
            color: var(--primary);
            flex-shrink: 0;
        }
        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0;
        }
        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
            flex: 1;
        }
        .service-card .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent-dark);
            transition: gap var(--transition-fast);
            margin-top: auto;
        }
        .service-card .service-link:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* ========== 图文区块 ========== */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .info-block.reverse {
            direction: rtl;
        }
        .info-block.reverse .info-text {
            direction: ltr;
        }
        .info-block .info-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
        }
        .info-block .info-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .info-block .info-image:hover img {
            transform: scale(1.04);
        }
        .info-block .info-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 12px;
            line-height: 1.3;
        }
        .info-block .info-text p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0 0 16px;
        }
        .info-block .info-text .info-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .info-block .info-text .info-list li {
            padding: 6px 0 6px 24px;
            position: relative;
            font-size: 0.9rem;
            color: var(--text);
        }
        .info-block .info-text .info-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        @media (max-width: 768px) {
            .info-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .info-block .info-image {
                aspect-ratio: 16/9;
            }
            .info-block .info-text h3 {
                font-size: 1.25rem;
            }
        }

        /* ========== 报告列表 ========== */
        .report-list-item {
            display: flex;
            gap: 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            align-items: flex-start;
        }
        .report-list-item:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
            transform: translateX(3px);
        }
        .report-list-item .report-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .report-list-item .report-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .report-list-item .report-info {
            flex: 1;
            min-width: 0;
        }
        .report-list-item .report-date {
            font-size: 0.75rem;
            color: var(--text-soft);
            margin-bottom: 4px;
        }
        .report-list-item .report-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 4px;
            line-height: 1.4;
        }
        .report-list-item .report-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        @media (max-width: 520px) {
            .report-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .report-list-item .report-thumb {
                width: 100%;
                height: 140px;
            }
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-item .faq-question:hover {
            background: rgba(26, 39, 68, 0.02);
        }
        .faq-item .faq-question .faq-icon {
            transition: transform var(--transition);
            font-size: 0.75rem;
            color: var(--text-soft);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-item .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA区块 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.08);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .cta-btn {
            display: inline-block;
            padding: 13px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            transition: all var(--transition);
            position: relative;
            z-index: 1;
            box-shadow: 0 6px 20px rgba(212, 168, 83, 0.35);
        }
        .cta-section .cta-btn:hover {
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            box-shadow: 0 10px 28px rgba(212, 168, 83, 0.5);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #c5cad4;
            padding: 48px 0 0;
            margin-top: 48px;
        }
        .site-footer a {
            color: #a0a6b2;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 36px;
            padding: 18px 0;
            text-align: center;
            font-size: 0.8rem;
            color: #6b7280;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 36px 0 0;
                margin-top: 32px;
            }
        }

        /* ========== 工具类补充 ========== */
        .text-accent {
            color: var(--accent);
        }
        .bg-surface {
            background: var(--bg);
        }
        .bg-white-section {
            background: #fff;
        }

/* roulang page: category3 */
:root {
            --primary: #0b2d4a;
            --primary-light: #143c5c;
            --primary-dark: #061d30;
            --accent: #d4a017;
            --accent-light: #e8b830;
            --accent-dark: #b8890f;
            --surface: #f7f8fa;
            --surface-alt: #eef1f5;
            --text-main: #1a1d24;
            --text-soft: #5a6070;
            --text-muted: #88909b;
            --border-soft: #e2e6ed;
            --border-medium: #cdd3dc;
            --success: #0ea371;
            --warning: #e8941a;
            --danger: #d14343;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.06), 0 6px 20px rgba(0, 0, 0, 0.05);
            --shadow-card-hover: 0 4px 14px rgba(0, 0, 0, 0.1), 0 12px 36px rgba(0, 0, 0, 0.07);
            --shadow-dock: 0 2px 8px rgba(0, 0, 0, 0.07), 0 16px 40px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
            line-height: 1.7;
            color: var(--text-main);
            background-color: #fafbfc;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

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

        @media (max-width: 640px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

        /* ========== 浮动Dock导航 ========== */
        .nav-dock {
            position: sticky;
            top: 14px;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-xl);
            padding: 8px 16px;
            margin: 14px auto 0;
            max-width: 1160px;
            width: calc(100% - 28px);
            box-shadow: var(--shadow-dock);
            border: 1px solid rgba(200, 208, 220, 0.45);
            transition: box-shadow var(--transition-smooth), border-color var(--transition-smooth);
        }
        .nav-dock:hover {
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1), 0 20px 48px rgba(0, 0, 0, 0.09);
            border-color: rgba(180, 190, 205, 0.6);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .nav-logo:hover {
            color: var(--accent-dark);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 9px 15px;
            border-radius: 22px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-soft);
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(11, 45, 74, 0.05);
        }
        .nav-links li a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(11, 45, 74, 0.25);
        }
        .nav-links li a.active:hover {
            background: var(--primary-light);
        }
        .search-input {
            width: 160px;
            padding: 9px 14px;
            border-radius: 22px;
            border: 1.5px solid var(--border-soft);
            font-size: 0.85rem;
            color: var(--text-main);
            background: #fafbfc;
            outline: none;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .search-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 160, 23, 0.1);
            background: #fff;
            width: 190px;
        }
        .search-input::placeholder {
            color: var(--text-muted);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 22px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 8px rgba(212, 160, 23, 0.28);
            letter-spacing: 0.02em;
        }
        .nav-cta:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 18px rgba(212, 160, 23, 0.38);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 6px 10px;
            border-radius: 8px;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: rgba(11, 45, 74, 0.07);
        }

        @media (max-width: 1024px) {
            .nav-dock {
                gap: 6px;
                padding: 7px 12px;
            }
            .nav-links li a {
                padding: 7px 10px;
                font-size: 0.82rem;
                border-radius: 18px;
            }
            .search-input {
                width: 120px;
                padding: 7px 10px;
                font-size: 0.8rem;
            }
            .search-input:focus {
                width: 150px;
            }
            .nav-cta {
                padding: 8px 15px;
                font-size: 0.8rem;
                border-radius: 18px;
            }
            .nav-logo {
                font-size: 0.95rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                border-radius: 8px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .nav-dock {
                flex-wrap: wrap;
                padding: 8px 10px;
                border-radius: var(--radius-lg);
                top: 8px;
                margin-top: 8px;
            }
            .nav-links {
                display: none;
                order: 10;
                width: 100%;
                flex-direction: column;
                gap: 2px;
                padding-top: 6px;
                border-top: 1px solid var(--border-soft);
                margin-top: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                justify-content: center;
                padding: 10px 14px;
                border-radius: 12px;
                font-size: 0.9rem;
            }
            .mobile-menu-toggle {
                display: block;
                margin-left: auto;
            }
            .search-input {
                width: 100px;
                order: 5;
            }
            .search-input:focus {
                width: 130px;
            }
            .nav-cta {
                order: 6;
                font-size: 0.78rem;
                padding: 7px 13px;
            }
        }

        @media (max-width: 520px) {
            .nav-dock {
                padding: 6px 8px;
                border-radius: 14px;
                gap: 4px;
                top: 6px;
                margin-top: 6px;
                width: calc(100% - 12px);
            }
            .nav-logo {
                font-size: 0.85rem;
                gap: 5px;
            }
            .logo-icon {
                width: 26px;
                height: 26px;
                border-radius: 7px;
                font-size: 0.75rem;
            }
            .search-input {
                width: 80px;
                font-size: 0.75rem;
                padding: 6px 8px;
                border-radius: 16px;
            }
            .search-input:focus {
                width: 100px;
            }
            .nav-cta {
                font-size: 0.73rem;
                padding: 6px 10px;
                border-radius: 16px;
            }
            .mobile-menu-toggle {
                font-size: 1.2rem;
                padding: 4px 8px;
            }
            .nav-links li a {
                font-size: 0.82rem;
                padding: 9px 12px;
            }
        }

        /* ========== Hero Banner ========== */
        .hero-banner {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            margin-top: 20px;
            isolation: isolate;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 45, 74, 0.82) 0%, rgba(6, 29, 48, 0.7) 40%, rgba(11, 45, 74, 0.55) 100%);
            z-index: 1;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(11, 45, 74, 0.5) 0%, transparent 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 40px;
            max-width: 700px;
        }
        @media (max-width: 640px) {
            .hero-banner {
                min-height: 280px;
                border-radius: var(--radius-lg);
                margin-top: 12px;
            }
            .hero-content {
                padding: 24px 18px;
            }
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 52px 0;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 34px 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 8px;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }
        @media (max-width: 640px) {
            .section-title {
                font-size: 1.4rem;
            }
        }
        .section-desc {
            color: var(--text-soft);
            font-size: 0.95rem;
            max-width: 640px;
            line-height: 1.6;
        }

        /* ========== 卡片通用 ========== */
        .card-base {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }
        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--border-medium);
        }
        .card-base:focus-within {
            outline: 3px solid rgba(212, 160, 23, 0.35);
            outline-offset: 2px;
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 12px 26px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.92rem;
            color: #fff;
            background: var(--primary);
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: var(--btn);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            box-shadow: var(--btn-hover);
            transform: translateY(-1px);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 12px 26px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.92rem;
            color: #fff;
            background: var(--accent);
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 8px rgba(212, 160, 23, 0.28);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 18px rgba(212, 160, 23, 0.38);
            transform: translateY(-1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 24px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            background: transparent;
            border: 2px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--btn);
        }

        /* ========== 标签/徽章 ========== */
        .badge-accent {
            display: inline-flex;
            align-items: center;
            padding: 5px 13px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(212, 160, 23, 0.12);
            color: var(--accent-dark);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .badge-primary {
            display: inline-flex;
            align-items: center;
            padding: 5px 13px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(11, 45, 74, 0.08);
            color: var(--primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .badge-success {
            display: inline-flex;
            align-items: center;
            padding: 5px 13px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(14, 163, 113, 0.12);
            color: var(--success);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        /* ========== 提示框 ========== */
        .tip-box {
            background: rgba(212, 160, 23, 0.06);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 16px 20px;
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.6;
            margin: 16px 0;
        }
        .tip-box strong {
            color: var(--accent-dark);
        }

        /* ========== 数据高亮卡片 ========== */
        .stat-highlight {
            text-align: center;
            padding: 20px 16px;
            background: linear-gradient(180deg, rgba(11, 45, 74, 0.03) 0%, rgba(11, 45, 74, 0.01) 100%);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-soft);
        }
        .stat-highlight .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .stat-highlight .stat-unit {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== 深色区块 ========== */
        .dark-section {
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .dark-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            z-index: 0;
            pointer-events: none;
        }
        .dark-section>* {
            position: relative;
            z-index: 1;
        }
        @media (max-width: 640px) {
            .dark-section {
                padding: 30px 18px;
                border-radius: var(--radius-lg);
            }
        }

        /* ========== FAQ ========== */
        .faq-item {
            border-bottom: 1px solid var(--border-soft);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            color: var(--primary);
        }
        .faq-question {
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-main);
            transition: color var(--transition-fast);
        }
        .faq-item:hover .faq-question {
            color: var(--primary);
        }
        .faq-answer {
            margin-top: 10px;
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.7;
            display: none;
            padding-left: 28px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-icon {
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            margin-top: 2px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0b1e30;
            color: #c5cdd8;
            padding: 48px 0 24px;
            margin-top: 40px;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }
        .site-footer a {
            color: #bcc5d0;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-brand {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #8a94a0;
        }
        @media (max-width: 640px) {
            .site-footer {
                padding: 34px 0 18px;
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
                margin-top: 24px;
            }
        }

        /* ========== 步骤流程 ========== */
        .step-row {
            display: flex;
            gap: 16px;
            align-items: stretch;
            flex-wrap: wrap;
        }
        .step-card {
            flex: 1;
            min-width: 200px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            position: relative;
            transition: all var(--transition-smooth);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        @media (max-width: 640px) {
            .step-row {
                flex-direction: column;
                gap: 12px;
            }
            .step-card {
                min-width: auto;
            }
        }

        /* ========== 响应式网格辅助 ========== */
        @media (max-width: 768px) {
            .grid-responsive {
                grid-template-columns: 1fr !important;
            }
        }