/* roulang page: index */
:root {
            --primary: #0E4D8A;
            --primary-dark: #0B3F72;
            --accent: #22D3EE;
            --accent2: #2DD4BF;
            --bg-main: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-soft: #5B6E82;
            --border-soft: #DCE4EF;
            --nav-dark: #0B1526;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 8px 24px rgba(15, 45, 70, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 45, 70, 0.10);
            --transition-base: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'system-ui', '-apple-system', '"PingFang SC"', '"Hiragino Sans GB"', '"Microsoft YaHei"', '"Noto Sans SC"', sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }

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

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

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

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .nav-header {
            background: var(--nav-dark);
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--accent), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 50;
            height: 64px;
            display: flex;
            align-items: center;
        }

        .nav-header .nav-link {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
        }

        .nav-header .nav-link:hover {
            color: var(--accent);
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
        }

        .nav-header .nav-link.active {
            color: #FFFFFF;
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
        }

        .nav-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
            border-radius: 2px;
        }

        .nav-cta {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        /* 移动端导航 */
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: #B8C4D4;
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--nav-dark);
            z-index: 49;
            padding: 24px 20px;
            overflow-y: auto;
        }

        .mobile-menu-panel.open {
            display: block;
        }

        .mobile-menu-panel a {
            display: block;
            color: #B8C4D4;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(220, 228, 239, 0.08);
            position: relative;
        }

        .mobile-menu-panel a.active {
            color: #FFFFFF;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
        }

        .mobile-menu-panel a:hover {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }

        /* Hero */
        .hero-section {
            min-height: 80vh;
            display: flex;
            align-items: center;
            background-color: var(--bg-main);
            padding-top: 32px;
            padding-bottom: 32px;
        }

        .hero-image-box {
            background-color: #E2EAF4;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background-image: linear-gradient(135deg, #DCE8F4 0%, #EEF3F9 100%);
            border: 1px solid rgba(220, 228, 239, 0.5);
        }

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

        .hero-float-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: 10px;
            padding: 10px 16px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(15, 45, 70, 0.12);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(220, 228, 239, 0.5);
        }

        .hero-tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.12);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

        /* 按钮 */
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(14, 77, 138, 0.35);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 10px rgba(14, 77, 138, 0.2);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--primary);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(34, 211, 238, 0.1);
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-text {
            background: none;
            border: none;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            padding: 8px 4px;
            transition: var(--transition-base);
        }

        .btn-text:hover {
            color: var(--accent);
        }

        .btn-text:hover i {
            transform: translateX(4px);
        }

        .btn-text i {
            transition: var(--transition-base);
        }

        /* 卡片 */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
            padding: 28px;
            transition: var(--transition-base);
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* 区块 */
        .section {
            padding: 72px 0;
        }

        @media (max-width: 640px) {
            .section {
                padding: 48px 0;
            }
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        @media (max-width: 640px) {
            .section-title {
                font-size: 24px;
            }
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-soft);
            line-height: 1.75;
            max-width: 680px;
        }

        /* 徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
        }

        .badge-accent {
            background: rgba(34, 211, 238, 0.12);
            color: var(--primary);
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

        .badge-date {
            background: rgba(14, 77, 138, 0.08);
            color: var(--primary);
            font-weight: 700;
            border: 1px solid rgba(14, 77, 138, 0.15);
        }

        /* 图片占位 */
        .img-placeholder {
            background: #E2EAF4;
            background-image: linear-gradient(135deg, #DCE8F4 0%, #F0F4FA 100%);
            border-radius: var(--radius-card);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-soft);
            font-size: 14px;
            overflow: hidden;
        }

        .img-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.open {
            box-shadow: var(--shadow-card-hover);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            user-select: none;
            transition: var(--transition-base);
            gap: 12px;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--accent);
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--text-soft);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 22px;
            border-top-color: var(--border-soft);
        }

        /* 底部固定转化条 */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 45;
            background: #FFFFFF;
            border-top: 1px solid var(--border-soft);
            box-shadow: 0 -4px 20px rgba(15, 45, 70, 0.1);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .sticky-cta-bar p {
            font-size: 14px;
            color: var(--text-main);
            font-weight: 500;
            margin: 0;
            flex: 1;
        }

        @media (max-width: 640px) {
            .sticky-cta-bar {
                flex-direction: column;
                gap: 10px;
                padding: 12px 16px;
                text-align: center;
            }
            .sticky-cta-bar .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }

        /* 场景演示 */
        .scene-tab {
            padding: 12px 20px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition-base);
            background: transparent;
            border: 1px solid var(--border-soft);
            color: var(--text-soft);
            white-space: nowrap;
        }

        .scene-tab.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(14, 77, 138, 0.25);
        }

        .scene-tab:hover {
            color: var(--primary);
            border-color: var(--accent);
        }

        .scene-content {
            display: none;
            padding: 28px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
        }

        .scene-content.active {
            display: block;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 新闻卡片 */
        .news-card {
            background: var(--card-bg);
            border-radius: 12px;
            border: 1px solid var(--border-soft);
            padding: 22px;
            transition: var(--transition-base);
        }

        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .news-date {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(34, 211, 238, 0.1);
            padding: 3px 12px;
            border-radius: 6px;
            display: inline-block;
        }

        /* 表单 */
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-soft);
            border-radius: 10px;
            background: #FFFFFF;
            color: var(--text-main);
            font-size: 15px;
            transition: var(--transition-base);
        }

        .form-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        /* 底部 */
        .footer {
            background: var(--nav-dark);
            color: #B8C4D4;
            padding: 48px 0 32px;
            font-size: 13px;
            line-height: 1.9;
        }

        .footer a {
            color: #B8C4D4;
        }

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

        /* 品牌装饰线 */
        .brand-line {
            border-left: 4px solid var(--accent);
            padding-left: 20px;
        }

        /* 数据指标 */
        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-soft);
        }

/* roulang page: category2 */
:root {
            --primary: #0E4D8A;
            --primary-dark: #0B3F72;
            --accent: #22D3EE;
            --accent2: #2DD4BF;
            --bg-main: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-soft: #5B6E82;
            --border-soft: #DCE4EF;
            --nav-dark: #0B1526;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 8px 24px rgba(15, 45, 70, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 45, 70, 0.10);
            --transition-base: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }

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

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

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

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .nav-header {
            background: var(--nav-dark);
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--accent), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 50;
            height: 64px;
            display: flex;
            align-items: center;
        }

        .nav-header .nav-link {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
        }

        .nav-header .nav-link:hover {
            color: var(--accent);
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
        }

        .nav-header .nav-link.active {
            color: #FFFFFF;
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
        }

        .nav-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
            border-radius: 2px;
        }

        .nav-cta {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: #B8C4D4;
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--nav-dark);
            z-index: 49;
            padding: 24px 20px;
            overflow-y: auto;
        }

        .mobile-menu-panel.open {
            display: block;
        }

        .mobile-menu-panel a {
            display: block;
            color: #B8C4D4;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(220, 228, 239, 0.08);
            position: relative;
        }

        .mobile-menu-panel a.active {
            color: #FFFFFF;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
        }

        .mobile-menu-panel a:hover {
            color: var(--accent);
        }

        .desktop-nav {
            display: flex;
        }

        .mobile-menu-btn {
            display: none;
        }

        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-cta {
                display: none;
            }
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-soft);
            padding: 20px 0 16px;
            flex-wrap: wrap;
        }

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

        .breadcrumb i {
            font-size: 10px;
            color: #9AA8B9;
        }

        .page-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }

        .page-subtitle {
            font-size: 16px;
            color: var(--text-soft);
            max-width: 680px;
            line-height: 1.8;
        }

        .zigzag-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            background: var(--card-bg);
            border: 1px solid #E1E8F0;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: var(--transition-base);
            margin-bottom: 24px;
        }

        .zigzag-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--accent);
        }

        .zigzag-card.reverse {
            direction: rtl;
        }

        .zigzag-card.reverse > * {
            direction: ltr;
        }

        .zigzag-image {
            border-radius: 12px;
            overflow: hidden;
            background: #E2EAF4;
            aspect-ratio: 16 / 10;
            background-image: linear-gradient(135deg, #DCE8F4 0%, #EEF3F9 100%);
            border: 1px solid rgba(220, 228, 239, 0.5);
        }

        .zigzag-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }

        .zigzag-card:hover .zigzag-image img {
            transform: scale(1.03);
        }

        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 10px;
        }

        .tag-badge {
            display: inline-block;
            background: rgba(34, 211, 238, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .date-badge {
            color: var(--text-soft);
            font-size: 13px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 4px;
        }

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

        .card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .card-excerpt {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.8;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .read-more-link i {
            font-size: 12px;
            transition: transform 0.25s ease;
        }

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

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

        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 36px 0;
        }

        .data-item {
            background: var(--card-bg);
            border: 1px solid #E1E8F0;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            text-align: center;
        }

        .data-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .data-number .accent-text {
            color: var(--accent);
        }

        .data-label {
            font-size: 13px;
            color: var(--text-soft);
            margin-top: 6px;
        }

        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 48px 36px;
            color: #fff;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 32px;
            align-items: center;
            margin: 40px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.25), transparent 70%);
            border-radius: 50%;
        }

        .cta-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .cta-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 540px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--nav-dark);
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            padding: 12px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            border: 1px solid var(--primary);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(14, 77, 138, 0.06);
            border-color: var(--accent);
            color: var(--accent);
        }

        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin: 36px 0 48px;
        }

        .page-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--card-bg);
            border: 1px solid #E1E8F0;
            color: var(--text-main);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .page-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: var(--shadow-card);
        }

        .page-btn.active-page {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(14, 77, 138, 0.3);
        }

        .faq-section {
            margin: 40px 0;
        }

        .faq-card {
            background: var(--card-bg);
            border: 1px solid #E1E8F0;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-card.open {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(34, 211, 238, 0.4);
        }

        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-main);
            transition: var(--transition-base);
            gap: 12px;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            min-width: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.1);
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition-base);
        }

        .faq-card.open .faq-icon {
            background: var(--accent);
            color: var(--nav-dark);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            border-top: 1px solid transparent;
        }

        .faq-card.open .faq-answer {
            max-height: 300px;
            padding: 16px 22px 20px;
            border-top: 1px solid #E1E8F0;
        }

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

        .footer {
            background: var(--nav-dark);
            padding: 48px 0 24px;
            color: #B8C4D4;
        }

        .footer a {
            color: #B8C4D4;
        }

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

        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-top: 1px solid #E1E8F0;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -4px 20px rgba(15, 45, 70, 0.08);
        }

        .fixed-cta-bar .cta-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        .fixed-cta-bar .btn-primary {
            padding: 10px 20px;
            font-size: 13px;
        }

        @media (max-width: 768px) {
            .page-title {
                font-size: 28px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .cta-section {
                grid-template-columns: 1fr;
                padding: 32px 24px;
                text-align: center;
            }
            .cta-section .btn-primary {
                justify-content: center;
            }
            .fixed-cta-bar {
                flex-direction: column;
                padding: 10px 16px;
                gap: 8px;
                text-align: center;
            }
            .fixed-cta-bar .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .zigzag-card {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 20px;
            }
            .zigzag-card.reverse {
                direction: ltr;
            }
        }

        @media (max-width: 520px) {
            .data-strip {
                grid-template-columns: 1fr;
            }
            .page-title {
                font-size: 24px;
            }
            .card-title {
                font-size: 17px;
            }
            .pagination {
                gap: 4px;
            }
            .page-btn {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0E4D8A;
            --primary-dark: #0B3F72;
            --accent: #22D3EE;
            --accent2: #2DD4BF;
            --bg-main: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-soft: #5B6E82;
            --border-soft: #DCE4EF;
            --nav-dark: #0B1526;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 8px 24px rgba(15, 45, 70, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 45, 70, 0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        /* 导航 */
        .nav-header {
            background: var(--nav-dark);
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--accent), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 60;
            height: 64px;
            display: flex;
            align-items: center;
        }
        .nav-header .nav-link {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .nav-header .nav-link:hover {
            color: var(--accent);
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
        }
        .nav-header .nav-link.active {
            color: #FFFFFF;
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
        }
        .nav-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
            color: var(--nav-dark) !important;
        }
        .text-shadow-glow {
            text-shadow: 0 0 14px rgba(34, 211, 238, 0.5);
        }
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: #B8C4D4;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition-base);
        }
        .mobile-menu-btn:hover {
            color: var(--accent);
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--nav-dark);
            z-index: 59;
            padding: 24px 20px;
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #B8C4D4;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(220, 228, 239, 0.08);
            position: relative;
            transition: var(--transition-base);
        }
        .mobile-menu-panel a.active {
            color: #FFFFFF;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
        }
        .mobile-menu-panel a:hover {
            color: var(--accent);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 1px;
        }
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-cta.desktop-only {
                display: none;
            }
        }
        @media (min-width: 1024px) {
            .mobile-menu-btn {
                display: none;
            }
            .mobile-menu-panel {
                display: none !important;
            }
        }
        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-soft);
            padding: 20px 0 8px 0;
        }
        .breadcrumb a {
            color: var(--text-soft);
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--border-soft);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* Hero 区域 */
        .category-hero {
            background-color: var(--bg-main);
            padding-top: 20px;
            padding-bottom: 28px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(220, 228, 239, 0.6);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 460px;
            height: 460px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .badge-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(34, 211, 238, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
            border: 1px solid rgba(34, 211, 238, 0.2);
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin: 0 0 14px 0;
            letter-spacing: -0.5px;
        }
        .category-hero .subtitle {
            font-size: 16px;
            color: var(--text-soft);
            max-width: 680px;
            line-height: 1.8;
            margin: 0;
        }
        @media (min-width: 768px) {
            .category-hero h1 {
                font-size: 40px;
            }
            .category-hero .subtitle {
                font-size: 17px;
            }
        }
        @media (max-width: 640px) {
            .category-hero h1 {
                font-size: 27px;
            }
            .category-hero .subtitle {
                font-size: 15px;
            }
        }
        /* 筛选标签 */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            padding: 18px 0;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 50px;
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            color: var(--text-soft);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .filter-chip:hover {
            border-color: var(--accent);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(34, 211, 238, 0.12);
        }
        .filter-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(14, 77, 138, 0.25);
        }
        .filter-chip.active .chip-count {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
        }
        .chip-count {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #EFF3F8;
            border-radius: 20px;
            padding: 0 8px;
            font-size: 12px;
            color: var(--text-soft);
            font-weight: 600;
        }
        /* 卡片网格 */
        .report-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 22px;
            padding: 8px 0 32px 0;
        }
        @media (min-width: 640px) {
            .report-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .report-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 26px;
            }
        }
        .report-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(220, 228, 239, 0.5);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition-base);
            height: 100%;
            cursor: pointer;
        }
        .report-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(34, 211, 238, 0.3);
        }
        .report-card .card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background-color: #E2EAF4;
            flex-shrink: 0;
        }
        .report-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .report-card:hover .card-image img {
            transform: scale(1.04);
        }
        .report-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11, 21, 38, 0.75);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(34, 211, 238, 0.3);
        }
        .report-card .card-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .report-card .card-date {
            font-size: 13px;
            color: var(--text-soft);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 10px;
            font-weight: 500;
        }
        .report-card .card-date i {
            color: var(--accent);
            font-size: 12px;
        }
        .report-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 10px 0;
            color: var(--text-main);
            transition: var(--transition-base);
        }
        .report-card:hover h3 {
            color: var(--primary);
        }
        .report-card .card-summary {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
            margin: 0 0 16px 0;
            flex: 1;
        }
        .report-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition-base);
            margin-top: auto;
        }
        .report-card .read-more i {
            transition: transform 0.25s ease;
            font-size: 12px;
        }
        .report-card:hover .read-more {
            color: var(--accent);
        }
        .report-card:hover .read-more i {
            transform: translateX(4px);
        }
        /* 深度正文区 */
        .deep-section {
            padding: 48px 0;
            background: var(--card-bg);
            border-top: 1px solid rgba(220, 228, 239, 0.5);
            border-bottom: 1px solid rgba(220, 228, 239, 0.5);
        }
        .deep-section .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .deep-section h2 {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text-main);
            margin: 0 0 18px 0;
        }
        .deep-section p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-soft);
            margin-bottom: 16px;
            max-width: 900px;
        }
        @media (min-width: 768px) {
            .deep-section h2 {
                font-size: 30px;
            }
            .deep-section p {
                font-size: 16px;
            }
        }
        /* 数据统计带 */
        .stats-band {
            padding: 40px 0;
            background: linear-gradient(135deg, #0B1526 0%, #0E2547 60%, #0B3F72 100%);
            position: relative;
            overflow: hidden;
        }
        .stats-band::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -5%;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.15), transparent 70%);
            border-radius: 50%;
        }
        .stats-band .stat-item {
            text-align: center;
            padding: 16px 12px;
        }
        .stats-band .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            text-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
        }
        .stats-band .stat-label {
            font-size: 13px;
            color: #8FA6C4;
            margin-top: 4px;
            font-weight: 500;
        }
        @media (max-width: 640px) {
            .stats-band .stat-number {
                font-size: 26px;
            }
        }
        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 24px 0 40px 0;
            flex-wrap: wrap;
        }
        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 10px;
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            color: var(--text-soft);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .page-btn:hover {
            border-color: var(--accent);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(34, 211, 238, 0.15);
        }
        .page-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(14, 77, 138, 0.25);
        }
        .page-btn.disabled {
            opacity: 0.45;
            pointer-events: none;
        }
        /* CTA 订阅区 */
        .cta-subscribe {
            padding: 56px 0;
            background: var(--bg-main);
        }
        .cta-box {
            background: var(--card-bg);
            border-radius: 18px;
            box-shadow: 0 12px 36px rgba(15, 45, 70, 0.08);
            border: 1px solid rgba(220, 228, 239, 0.6);
            padding: 36px 28px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        @media (min-width: 768px) {
            .cta-box {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                padding: 44px 40px;
            }
        }
        .cta-box .cta-info h3 {
            font-size: 24px;
            font-weight: 800;
            margin: 0 0 10px 0;
            color: var(--text-main);
        }
        .cta-box .cta-info p {
            font-size: 15px;
            color: var(--text-soft);
            margin: 0;
            max-width: 520px;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            width: 100%;
            max-width: 420px;
        }
        @media (min-width: 640px) {
            .cta-form {
                flex-direction: row;
                align-items: center;
            }
        }
        .cta-form input {
            flex: 1;
            padding: 12px 16px;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-btn);
            font-size: 14px;
            background: #fff;
            transition: var(--transition-base);
        }
        .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        /* footer */
        .footer {
            background: var(--nav-dark);
            color: #B8C4D4;
            padding: 48px 0 32px 0;
            margin-top: 0;
        }
        .footer a {
            color: #B8C4D4;
            transition: var(--transition-base);
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer .footer-link {
            display: block;
            font-size: 14px;
            margin-bottom: 10px;
            color: #8FA6C4;
        }
        .footer .footer-link:hover {
            color: var(--accent);
        }
        /* 底部固定转化条 */
        .sticky-conversion {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 70;
            background: rgba(11, 21, 38, 0.96);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(34, 211, 238, 0.3);
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .sticky-conversion .sticky-text {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            min-width: 0;
        }
        .sticky-conversion .sticky-text i {
            color: var(--accent);
            flex-shrink: 0;
        }
        .sticky-conversion .sticky-btn {
            background: var(--accent);
            color: var(--nav-dark);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .sticky-conversion .sticky-btn:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.6);
            color: var(--nav-dark);
            transform: translateY(-1px);
        }
        @media (max-width: 640px) {
            .sticky-conversion {
                padding: 10px 14px;
            }
            .sticky-conversion .sticky-text {
                font-size: 12px;
            }
            .sticky-conversion .sticky-btn {
                padding: 8px 14px;
                font-size: 12px;
            }
        }
        .truncate-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .truncate-3 {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

/* roulang page: category5 */
:root {
            --primary: #0E4D8A;
            --primary-dark: #0B3F72;
            --accent: #22D3EE;
            --accent2: #2DD4BF;
            --bg-main: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-soft: #5B6E82;
            --border-soft: #DCE4EF;
            --nav-dark: #0B1526;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 8px 24px rgba(15, 45, 70, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 45, 70, 0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'system-ui', '-apple-system', '"PingFang SC"', '"Hiragino Sans GB"', '"Microsoft YaHei"', '"Noto Sans SC"', sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .container-custom {
            padding-left: 16px;
            padding-right: 16px;
        }
        /* 导航 */
        .nav-header {
            background: var(--nav-dark);
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--accent), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 50;
            height: 64px;
            display: flex;
            align-items: center;
        }
        .nav-header .nav-link {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
        }
        .nav-header .nav-link:hover {
            color: var(--accent);
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
        }
        .nav-header .nav-link.active {
            color: #FFFFFF;
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
        }
        .nav-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        .text-shadow-glow {
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.65);
        }
        /* 移动端导航 */
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: #B8C4D4;
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--nav-dark);
            z-index: 49;
            padding: 24px 20px;
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: block;
            color: #B8C4D4;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(220, 228, 239, 0.08);
            position: relative;
        }
        .mobile-menu-panel a.active {
            color: #FFFFFF;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
        }
        .mobile-menu-panel a:hover {
            color: var(--accent);
        }
        .desktop-nav {
            display: none;
        }
        .mobile-menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        /* 面包屑 */
        .breadcrumb {
            font-size: 13px;
            color: var(--text-soft);
            padding: 16px 0 0;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        /* 分类页特有双栏图文混排 */
        .intel-hero {
            background: linear-gradient(160deg, #E3EEF9 0%, #F4F9FE 45%, #EDF3FA 100%);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid rgba(220, 228, 239, 0.6);
            box-shadow: var(--shadow-card);
            padding: 0;
            margin-top: 20px;
        }
        .intel-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            align-items: stretch;
        }
        .intel-hero-content {
            padding: 40px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .intel-hero-image {
            min-height: 280px;
            background-image: linear-gradient(135deg, #B9D2E9 0%, #D6E5F2 55%, #C2D9EC 100%);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .intel-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .intel-hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 21, 38, 0.05) 0%, rgba(11, 21, 38, 0.25) 100%);
        }
        .intel-hero-badge {
            position: absolute;
            top: 18px;
            right: 18px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(6px);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            z-index: 2;
            border: 1px solid rgba(220, 228, 239, 0.5);
            box-shadow: 0 8px 18px rgba(15, 45, 70, 0.1);
        }
        .intel-tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.12);
            color: #0B7484;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
            border: 1px solid rgba(34, 211, 238, 0.25);
        }
        /* 双栏图文列表 */
        .intel-list-item {
            display: grid;
            grid-template-columns: 1fr 90px;
            gap: 20px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            margin-bottom: 18px;
        }
        .intel-list-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(34, 211, 238, 0.4);
        }
        .intel-list-item .intel-content {
            display: flex;
            flex-direction: column;
        }
        .intel-list-item .intel-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .intel-list-item .intel-summary {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.75;
            flex: 1;
        }
        .intel-list-item .intel-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-soft);
            margin-top: 12px;
            flex-wrap: wrap;
        }
        .intel-list-item .intel-meta .intel-date {
            font-weight: 600;
            color: var(--primary);
        }
        .intel-list-item .intel-img {
            background: linear-gradient(135deg, #DCE8F4 0%, #EEF3F9 100%);
            border-radius: 10px;
            min-height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .intel-list-item .intel-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .intel-data-note {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            background: rgba(14, 77, 138, 0.06);
            border-left: 3px solid var(--accent);
            padding: 6px 12px;
            border-radius: 0 8px 8px 0;
            margin-top: 10px;
            display: inline-block;
        }
        /* 分段说明 */
        .intel-segment {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            margin-top: 30px;
        }
        .intel-segment-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .intel-segment-block h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .intel-segment-block p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.8;
        }
        /* 订阅框 */
        .subscribe-box {
            background: var(--nav-dark);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            color: #fff;
            margin-top: 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .subscribe-box .subscribe-text {
            font-size: 16px;
            font-weight: 600;
        }
        .subscribe-box .subscribe-input {
            background: #1a2739;
            border: 1px solid rgba(220, 228, 239, 0.2);
            color: #fff;
            border-radius: 8px;
            padding: 10px 16px;
            min-width: 240px;
            font-size: 14px;
        }
        .subscribe-box .subscribe-input::placeholder {
            color: #8ea0b5;
        }
        .subscribe-box .subscribe-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.25);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .btn-accent:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary) !important;
            border: 1px solid var(--primary);
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .btn-outline:hover {
            background: rgba(34, 211, 238, 0.1);
            border-color: var(--accent);
            color: #0B7484 !important;
        }
        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 10px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            color: var(--text-soft);
            transition: var(--transition-base);
        }
        .pagination a:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .pagination .current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 700;
        }
        /* 页脚 */
        .footer {
            background: var(--nav-dark);
            color: #B8C4D4;
            padding: 40px 0 24px;
            margin-top: 60px;
        }
        .footer a:hover {
            color: var(--accent);
        }
        /* 底部固定转化条 */
        .fixed-conversion-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-top: 1px solid var(--border-soft);
            box-shadow: 0 -4px 20px rgba(15, 45, 70, 0.08);
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .fixed-conversion-bar .conv-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }
        /* 响应式 */
        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
            }
            .mobile-menu-btn {
                display: none;
            }
        }
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
        }
        @media (max-width: 768px) {
            .intel-hero-grid {
                grid-template-columns: 1fr;
            }
            .intel-hero-content {
                padding: 28px 20px;
            }
            .intel-list-item {
                grid-template-columns: 1fr;
                padding: 20px;
            }
            .intel-list-item .intel-img {
                min-height: 120px;
                order: -1;
            }
            .intel-segment-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .subscribe-box .subscribe-input {
                min-width: 100%;
            }
            .fixed-conversion-bar {
                flex-direction: column;
                text-align: center;
                padding: 10px 16px;
            }
            .fixed-conversion-bar .conv-text {
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .intel-hero-content {
                padding: 22px 16px;
            }
            .intel-list-item {
                padding: 16px;
            }
            .intel-list-item .intel-title {
                font-size: 15px;
            }
            .pagination a,
            .pagination span {
                min-width: 32px;
                height: 32px;
                font-size: 12px;
            }
            .fixed-conversion-bar {
                padding: 8px 12px;
            }
            .fixed-conversion-bar .conv-text {
                font-size: 12px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0E4D8A;
            --primary-dark: #0B3F72;
            --accent: #22D3EE;
            --accent2: #2DD4BF;
            --bg-main: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-soft: #5B6E82;
            --border-soft: #DCE4EF;
            --nav-dark: #0B1526;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 8px 24px rgba(15, 45, 70, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 45, 70, 0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            outline: none;
        }
        button:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* 导航 */
        .nav-header {
            background: var(--nav-dark);
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--accent), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 50;
            height: 64px;
            display: flex;
            align-items: center;
        }
        .nav-header .nav-link {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
        }
        .nav-header .nav-link:hover {
            color: var(--accent);
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
        }
        .nav-header .nav-link.active {
            color: #FFFFFF;
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
        }
        .nav-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: #B8C4D4;
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--nav-dark);
            z-index: 49;
            padding: 24px 20px;
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: block;
            color: #B8C4D4;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(220, 228, 239, 0.08);
            position: relative;
        }
        .mobile-menu-panel a.active {
            color: #FFFFFF;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
        }
        .mobile-menu-panel a:hover {
            color: var(--accent);
        }
        .desktop-nav {
            display: none;
        }
        .mobile-menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
                align-items: center;
                gap: 4px;
            }
            .mobile-menu-btn {
                display: none;
            }
        }
        /* Hero */
        .hero-section {
            min-height: 80vh;
            display: flex;
            align-items: center;
            background-color: var(--bg-main);
            padding-top: 32px;
            padding-bottom: 32px;
        }
        .hero-image-box {
            background-color: #E2EAF4;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background-image: linear-gradient(135deg, #DCE8F4 0%, #EEF3F9 100%);
            border: 1px solid rgba(220, 228, 239, 0.5);
        }
        .hero-image-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .hero-float-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: 10px;
            padding: 10px 16px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(15, 45, 70, 0.12);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(220, 228, 239, 0.5);
        }
        .hero-tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.12);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background-color: rgba(34, 211, 238, 0.08);
            border-color: var(--accent);
            color: var(--primary-dark);
        }
        /* 板块 */
        .section-block {
            padding: 72px 0;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-soft);
            line-height: 1.85;
            max-width: 780px;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            padding: 24px;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .badge-accent {
            background: rgba(34, 211, 238, 0.12);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-block;
        }
        .tag-chip {
            background: #F0F5FC;
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--border-soft);
            transition: var(--transition-base);
            cursor: pointer;
            display: inline-block;
            white-space: nowrap;
        }
        .tag-chip:hover {
            background: rgba(34, 211, 238, 0.15);
            border-color: var(--accent);
            color: var(--primary-dark);
        }
        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-soft);
        }
        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: #9AABBC;
        }
        .breadcrumb .current {
            color: var(--text-soft);
            font-weight: 400;
        }
        /* 侧栏 */
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: 20px;
            margin-bottom: 20px;
        }
        .sidebar-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-soft);
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(220, 228, 239, 0.5);
            transition: var(--transition-base);
        }
        .hot-item:last-child {
            border-bottom: none;
        }
        .hot-item:hover .hot-title {
            color: var(--primary);
        }
        .hot-rank {
            width: 26px;
            height: 26px;
            background: rgba(34, 211, 238, 0.12);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }
        .hot-rank.top {
            background: rgba(34, 211, 238, 0.22);
            color: var(--primary-dark);
            font-weight: 800;
        }
        .hot-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
            transition: var(--transition-base);
        }
        /* 战术卡片网格 */
        .tactic-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }
        @media (min-width: 768px) {
            .tactic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .tactic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        /* 主内容+侧栏布局 */
        .main-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }
        @media (min-width: 1024px) {
            .main-layout {
                grid-template-columns: 1fr 320px;
                gap: 32px;
            }
        }
        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border-radius: 12px;
            border: 1px solid var(--border-soft);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
        }
        .faq-question .faq-icon {
            color: var(--accent);
            font-size: 16px;
            transition: var(--transition-base);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            color: var(--text-soft);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            border-top: 1px solid rgba(220, 228, 239, 0.5);
            margin: 0 20px;
            padding-top: 14px;
        }
        .faq-item.active {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(34, 211, 238, 0.4);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        /* 数据对比卡 */
        .metric-row {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: #FAFCFF;
            border-radius: 10px;
            margin-bottom: 8px;
            border: 1px solid rgba(220, 228, 239, 0.5);
        }
        .metric-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-soft);
            min-width: 80px;
        }
        .metric-bar-bg {
            flex: 1;
            height: 8px;
            background: #E8EDF5;
            border-radius: 4px;
            overflow: hidden;
        }
        .metric-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
        }
        .metric-value {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            min-width: 40px;
            text-align: right;
        }
        /* 底部固定转化条 */
        .bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--nav-dark);
            color: #B8C4D4;
            z-index: 60;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
        }
        .bottom-bar-text {
            font-size: 14px;
            font-weight: 500;
            color: #D1DCE6;
        }
        .bottom-bar .btn-bar {
            background: var(--accent);
            color: var(--nav-dark);
            padding: 8px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .bottom-bar .btn-bar:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        @media (max-width: 640px) {
            .bottom-bar {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                gap: 8px;
                padding: 10px 12px;
            }
            .bottom-bar .btn-bar {
                display: block;
                width: 100%;
                text-align: center;
            }
            .bottom-bar-text {
                font-size: 13px;
            }
        }
        /* 页脚 */
        .footer {
            background: var(--nav-dark);
            color: #B8C4D4;
            padding: 48px 0 24px;
        }
        .footer a {
            color: #B8C4D4;
        }
        .footer a:hover {
            color: var(--accent);
        }
        .text-shadow-glow {
            text-shadow: 0 0 8px rgba(34, 211, 238, 0.4);
        }
        @media (min-width: 640px) {
            .container-custom {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        /* 响应式调整 */
        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .hero-section {
                min-height: auto;
                padding-top: 24px;
                padding-bottom: 24px;
            }
        }
        @media (max-width: 1024px) {
            .main-layout {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0E4D8A;
            --primary-dark: #0B3F72;
            --accent: #22D3EE;
            --accent2: #2DD4BF;
            --bg-main: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-soft: #5B6E82;
            --border-soft: #DCE4EF;
            --nav-dark: #0B1526;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 8px 24px rgba(15, 45, 70, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 45, 70, 0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 88px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        /* 导航 */
        .nav-header {
            background: var(--nav-dark);
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--accent), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 50;
            height: 64px;
            display: flex;
            align-items: center;
        }
        .nav-header .nav-link {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
        }
        .nav-header .nav-link:hover {
            color: var(--accent);
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
        }
        .nav-header .nav-link.active {
            color: #FFFFFF;
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
        }
        .nav-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: #B8C4D4;
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--nav-dark);
            z-index: 49;
            padding: 24px 20px;
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: block;
            color: #B8C4D4;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(220, 228, 239, 0.08);
            position: relative;
        }
        .mobile-menu-panel a.active {
            color: #FFFFFF;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
        }
        .mobile-menu-panel a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }
        @media (min-width: 1025px) {
            .desktop-nav {
                display: flex;
            }
        }
        /* 面包屑 */
        .breadcrumb {
            background: transparent;
            padding: 18px 0;
            font-size: 14px;
            color: var(--text-soft);
        }
        .breadcrumb a {
            color: var(--text-soft);
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: #B8C4D4;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* 页面banner */
        .page-banner {
            background-color: var(--primary);
            background-image: linear-gradient(135deg, #0B3F72 0%, #0E4D8A 50%, #0B3F72 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            margin-bottom: 32px;
            position: relative;
            overflow: hidden;
            min-height: 220px;
            display: flex;
            align-items: center;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 45%;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            pointer-events: none;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.08);
            pointer-events: none;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
        }
        .page-banner .banner-tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.18);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .page-banner h1 {
            font-size: 32px;
            font-weight: 800;
            color: #FFFFFF;
            margin: 0 0 12px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }
        .page-banner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.78);
            margin: 0;
            line-height: 1.8;
        }
        @media (max-width: 640px) {
            .page-banner {
                padding: 32px 20px;
                min-height: 180px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
        }
        /* 时间线 */
        .timeline-section {
            padding: 0 0 48px;
        }
        .timeline-wrapper {
            position: relative;
            padding-left: 32px;
        }
        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: linear-gradient(180deg, var(--accent) 0%, var(--primary) 100%);
            border-radius: 2px;
            opacity: 0.45;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 28px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 14px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.45);
            z-index: 2;
        }
        .timeline-item .timeline-date {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .timeline-item .timeline-date i {
            font-size: 14px;
        }
        .timeline-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            transition: var(--transition-base);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(34, 211, 238, 0.3);
        }
        .timeline-card .timeline-thumb {
            flex-shrink: 0;
            width: 90px;
            height: 72px;
            border-radius: 10px;
            overflow: hidden;
            background-color: #E2EAF4;
            position: relative;
        }
        .timeline-card .timeline-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 10px;
        }
        .timeline-card .timeline-body {
            flex: 1;
            min-width: 0;
        }
        .timeline-card .timeline-body h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-main);
            line-height: 1.5;
        }
        .timeline-card .timeline-body p {
            font-size: 14px;
            color: var(--text-soft);
            margin: 0 0 12px;
            line-height: 1.7;
        }
        .timeline-card .read-more-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
        }
        .timeline-card .read-more-link:hover {
            color: var(--accent);
            gap: 10px;
        }
        .timeline-card .timeline-badge {
            display: inline-block;
            background: rgba(34, 211, 238, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 14px;
            margin-bottom: 8px;
        }
        @media (max-width: 640px) {
            .timeline-wrapper {
                padding-left: 24px;
            }
            .timeline-item {
                padding-left: 16px;
            }
            .timeline-item::before {
                left: -18px;
                width: 12px;
                height: 12px;
                top: 12px;
            }
            .timeline-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .timeline-card .timeline-thumb {
                width: 100%;
                height: 120px;
            }
            .timeline-card .timeline-body h3 {
                font-size: 15px;
            }
        }
        /* 数据快照 */
        .stats-snapshot {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin: 32px 0;
        }
        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: 20px 16px;
            text-align: center;
            transition: var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .stat-card .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-soft);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-snapshot {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card .stat-number {
                font-size: 22px;
            }
        }
        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 32px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 8px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition-base);
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            color: var(--text-soft);
        }
        .pagination a:hover {
            border-color: var(--accent);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(34, 211, 238, 0.15);
        }
        .pagination .page-current {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            font-weight: 600;
        }
        .pagination .page-dots {
            border: none;
            background: transparent;
            color: var(--text-soft);
        }
        /* CTA区域 */
        .cta-box {
            background: linear-gradient(135deg, #0B3F72 0%, #0E4D8A 60%, #0B3F72 100%);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            margin: 40px 0 20px;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            top: -20px;
            right: -20px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.1);
        }
        .cta-box h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 10px;
            position: relative;
            z-index: 2;
        }
        .cta-box p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0 0 20px;
            max-width: 520px;
            position: relative;
            z-index: 2;
            line-height: 1.7;
        }
        .cta-box .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .cta-box .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 10px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .cta-box .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-box .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.25);
            background: rgba(255, 255, 255, 0.12);
        }
        .cta-btn {
            background: var(--accent);
            color: var(--nav-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .cta-btn:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        @media (max-width: 640px) {
            .cta-box {
                padding: 28px 20px;
            }
            .cta-box h2 {
                font-size: 20px;
            }
            .cta-box .cta-form {
                flex-direction: column;
            }
            .cta-box .cta-form input {
                min-width: auto;
                width: 100%;
            }
        }
        /* 页脚 */
        .footer {
            background: var(--nav-dark);
            color: #B8C4D4;
            padding: 48px 0 32px;
            margin-top: 16px;
        }
        .footer a {
            color: #B8C4D4;
            transition: var(--transition-base);
        }
        .footer a:hover {
            color: var(--accent);
        }
        /* 底部固定转化条 */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(11, 21, 38, 0.95);
            backdrop-filter: blur(8px);
            z-index: 40;
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border-top: 1px solid rgba(34, 211, 238, 0.25);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
        }
        .fixed-cta-bar .fixed-cta-text {
            color: #E2E8F0;
            font-size: 13px;
            font-weight: 500;
        }
        .fixed-cta-bar .fixed-cta-btn {
            background: var(--accent);
            color: var(--nav-dark);
            font-weight: 700;
            font-size: 13px;
            padding: 8px 18px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .fixed-cta-bar .fixed-cta-btn:hover {
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.5);
        }
        @media (max-width: 640px) {
            .fixed-cta-bar {
                padding: 8px 16px;
                flex-direction: column;
                gap: 6px;
            }
            .fixed-cta-bar .fixed-cta-text {
                font-size: 12px;
                text-align: center;
            }
            .fixed-cta-bar .fixed-cta-btn {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #0E4D8A;
            --primary-dark: #0B3F72;
            --accent: #22D3EE;
            --accent2: #2DD4BF;
            --bg-main: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-soft: #5B6E82;
            --border-soft: #DCE4EF;
            --nav-dark: #0B1526;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 8px 24px rgba(15, 45, 70, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 45, 70, 0.10);
            --transition-base: all 0.25s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .nav-header {
            background: var(--nav-dark);
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--accent), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 50;
            height: 64px;
            display: flex;
            align-items: center;
        }
        .nav-header .nav-link {
            color: #B8C4D4;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
        }
        .nav-header .nav-link:hover {
            color: var(--accent);
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
        }
        .nav-header .nav-link.active {
            color: #FFFFFF;
            text-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
        }
        .nav-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent);
            color: var(--nav-dark) !important;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: #B8C4D4;
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--nav-dark);
            z-index: 49;
            padding: 24px 20px;
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: block;
            color: #B8C4D4;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(220, 228, 239, 0.08);
            position: relative;
        }
        .mobile-menu-panel a.active {
            color: #FFFFFF;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
            text-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
        }
        .mobile-menu-panel a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }
        @media (min-width: 1025px) {
            .desktop-nav {
                display: flex !important;
            }
        }
        .text-shadow-glow {
            text-shadow: 0 0 14px rgba(34, 211, 238, 0.6);
        }

        /* 面包屑 */
        .breadcrumb-bar {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border-soft);
            padding: 12px 0;
        }
        .breadcrumb-bar a {
            color: var(--text-soft);
            font-size: 14px;
        }
        .breadcrumb-bar a:hover {
            color: var(--accent);
        }
        .breadcrumb-bar .separator {
            margin: 0 8px;
            color: #B8C4D4;
            font-size: 13px;
        }
        .breadcrumb-bar .current {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
        }

        /* 内页 Hero */
        .inner-hero {
            background: linear-gradient(180deg, #EDF3FA 0%, #F8FBFE 100%);
            padding: 48px 0 40px;
            border-bottom: 1px solid rgba(220, 228, 239, 0.5);
        }
        .inner-hero .h1-tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.12);
            color: #0891B2;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .inner-hero h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .inner-hero .hero-desc {
            font-size: 17px;
            color: var(--text-soft);
            max-width: 720px;
            line-height: 1.9;
        }
        .inner-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
            font-size: 13px;
            color: var(--text-soft);
        }
        .inner-hero .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #FFFFFF;
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid var(--border-soft);
            box-shadow: 0 2px 8px rgba(15, 45, 70, 0.04);
        }
        .inner-hero .hero-meta i {
            color: var(--accent);
            font-size: 14px;
        }

        /* 图片占位框 */
        .image-frame {
            background-color: #E2EAF4;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16 / 10;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background-image: linear-gradient(135deg, #DCE8F4 0%, #EEF3F9 100%);
            border: 1px solid rgba(220, 228, 239, 0.5);
            width: 100%;
        }
        .image-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .image-frame .frame-caption {
            position: absolute;
            bottom: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 8px;
            padding: 4px 12px;
            font-size: 12px;
            color: var(--text-soft);
            font-weight: 500;
            box-shadow: 0 4px 12px rgba(15, 45, 70, 0.08);
        }

        /* 板块通用 */
        .section-block {
            padding: 56px 0;
        }
        .section-block.section-alt {
            background: #FFFFFF;
            border-top: 1px solid rgba(220, 228, 239, 0.4);
            border-bottom: 1px solid rgba(220, 228, 239, 0.4);
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-eyebrow::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-soft);
            max-width: 680px;
            line-height: 1.8;
        }

        /* 深度正文 */
        .deep-text {
            font-size: 15.5px;
            line-height: 2;
            color: var(--text-main);
        }
        .deep-text p {
            margin-bottom: 16px;
        }
        .deep-text p:last-child {
            margin-bottom: 0;
        }
        .deep-text strong {
            color: var(--primary);
            font-weight: 600;
        }
        .deep-text .highlight {
            background: rgba(34, 211, 238, 0.08);
            border-left: 3px solid var(--accent);
            padding: 12px 20px;
            border-radius: 0 10px 10px 0;
            margin: 20px 0;
            font-style: normal;
        }

        /* 对比卡片 */
        .compare-card {
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            transition: var(--transition-base);
            height: 100%;
        }
        .compare-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .compare-card .compare-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-card .compare-title i {
            color: var(--accent);
            font-size: 18px;
        }
        .compare-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid #EEF2F7;
            gap: 10px;
        }
        .compare-row:last-child {
            border-bottom: none;
        }
        .compare-row .compare-label {
            font-size: 14px;
            color: var(--text-soft);
            font-weight: 500;
            flex-shrink: 0;
            min-width: 80px;
        }
        .compare-row .compare-values {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            justify-content: flex-end;
        }
        .compare-row .compare-values .value-item {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            text-align: center;
            min-width: 56px;
        }
        .compare-row .compare-values .value-item.primary-value {
            color: var(--primary);
            background: rgba(14, 77, 138, 0.06);
            padding: 4px 10px;
            border-radius: 8px;
        }
        .compare-row .compare-values .value-item.accent-value {
            color: #0891B2;
            background: rgba(34, 211, 238, 0.08);
            padding: 4px 10px;
            border-radius: 8px;
        }
        .compare-row .compare-values .vs-badge {
            font-size: 12px;
            color: var(--text-soft);
            font-weight: 500;
            background: #F1F4F8;
            padding: 2px 8px;
            border-radius: 6px;
        }

        /* 记录卡片列表 */
        .record-card {
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .record-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .record-card .record-image {
            aspect-ratio: 16 / 9;
            background: #E2EAF4;
            overflow: hidden;
            border-radius: 14px 14px 0 0;
            position: relative;
        }
        .record-card .record-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 14px 14px 0 0;
        }
        .record-card .record-image .date-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 8px;
            letter-spacing: 0.3px;
        }
        .record-card .record-body {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .record-card .record-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .record-card .record-excerpt {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .record-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition-base);
        }
        .record-card .read-more i {
            transition: transform 0.25s ease;
        }
        .record-card .read-more:hover {
            color: var(--accent);
        }
        .record-card .read-more:hover i {
            transform: translateX(4px);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-soft);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item[open] {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(34, 211, 238, 0.4);
        }
        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
            cursor: pointer;
            list-style: none;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            transition: var(--transition-base);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item summary .faq-icon {
            color: var(--accent);
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px 20px;
            font-size: 14.5px;
            color: var(--text-soft);
            line-height: 1.85;
            border-top: 1px solid #EEF2F7;
            padding-top: 16px;
        }

        /* CTA 区 */
        .cta-section {
            background: var(--nav-dark);
            border-radius: 18px;
            padding: 40px 32px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(34, 211, 238, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 260px;
            height: 260px;
            background: rgba(45, 212, 191, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-title {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .cta-section .cta-desc {
            color: #B8C4D4;
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            max-width: 560px;
        }
        .cta-form input {
            flex: 1;
            min-width: 200px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(220, 228, 239, 0.2);
            border-radius: 10px;
            padding: 12px 16px;
            color: #FFFFFF;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .cta-form input::placeholder {
            color: #8B9BB4;
        }
        .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
        }
        .cta-btn {
            background: var(--accent);
            color: var(--nav-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 12px 28px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .cta-btn:hover {
            box-shadow: 0 0 24px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        .cta-btn:active {
            transform: translateY(1px);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        /* 页脚 */
        .footer {
            background: var(--nav-dark);
            color: #B8C4D4;
            padding: 48px 0 32px;
            margin-top: 32px;
        }
        .footer a {
            color: #B8C4D4;
            transition: var(--transition-base);
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer .footer-title {
            color: #FFFFFF;
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 12px;
        }
        .footer .footer-link {
            font-size: 13.5px;
            line-height: 2;
        }

        /* 底部固定转化条 */
        .sticky-convert-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-top: 1px solid var(--border-soft);
            box-shadow: 0 -4px 20px rgba(15, 45, 70, 0.08);
            z-index: 60;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .sticky-convert-bar p {
            font-size: 13.5px;
            color: var(--text-main);
            font-weight: 500;
            margin: 0;
            flex: 1;
            min-width: 180px;
            line-height: 1.5;
        }
        .sticky-convert-bar p i {
            color: var(--accent);
            margin-right: 6px;
        }
        .sticky-convert-bar .sticky-btn {
            background: var(--primary);
            color: #FFFFFF;
            padding: 8px 22px;
            border-radius: 8px;
            font-size: 13.5px;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .sticky-convert-bar .sticky-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.4);
        }
        @media (max-width: 640px) {
            .sticky-convert-bar {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 10px 14px;
            }
            .sticky-convert-bar p {
                text-align: center;
            }
            .sticky-convert-bar .sticky-btn {
                text-align: center;
            }
        }

        /* 查看更多按钮 */
        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #FFFFFF;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 32px;
            border-radius: 10px;
            border: 1px solid var(--border-soft);
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-card);
        }
        .load-more-btn:hover {
            border-color: var(--accent);
            color: #0891B2;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* 分段说明标签 */
        .segment-label {
            display: inline-block;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
            .inner-hero {
                padding: 32px 0 28px;
            }
            .cta-section {
                padding: 28px 20px;
            }
            .compare-card {
                padding: 18px 14px;
            }
            .compare-row .compare-values {
                gap: 8px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .section-block {
                padding: 48px 0;
            }
        }