/* roulang page: index */
:root {
            --bg-primary: #060E1A;
            --bg-secondary: #0A1628;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-card-hover: rgba(0, 214, 143, 0.45);
            --brand-blue: #0E5DA8;
            --brand-blue-light: #1A7FC4;
            --brand-green: #00D68F;
            --brand-green-glow: rgba(0, 214, 143, 0.5);
            --brand-red: #E5484D;
            --brand-gold: #F59E0B;
            --text-primary: #F8FAFC;
            --text-body: #C4D1E0;
            --text-muted: #7A8EA6;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
            --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
            --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.85;
            font-size: 16px;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 18, 38, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 214, 143, 0.18);
            transition: background 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(6, 18, 38, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            cursor: pointer;
            user-select: none;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--text-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease, transform 0.3s ease;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--brand-green);
            box-shadow: 0 0 10px var(--brand-green-glow);
            transition: width 0.35s ease;
        }

        .nav-links li a:hover {
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: #7DD3FC;
            font-weight: 600;
        }

        .nav-links li a.active::after {
            width: 100%;
            background: var(--brand-green);
            box-shadow: 0 0 12px var(--brand-green-glow);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 6px;
            line-height: 1;
            transition: color 0.3s ease;
        }

        .nav-toggle:hover {
            color: var(--brand-green);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: rgba(6, 18, 38, 0.97);
            backdrop-filter: blur(20px);
            border-left: 1px solid rgba(0, 214, 143, 0.25);
            z-index: 200;
            transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 199;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: all;
        }

        .drawer-close {
            align-self: flex-end;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 28px;
            cursor: pointer;
            line-height: 1;
            padding: 4px;
        }

        .drawer-nav {
            list-style: none;
            margin-top: 30px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .drawer-nav li a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            color: var(--text-body);
            border-radius: var(--radius-md);
            transition: background 0.3s ease, color 0.3s ease;
            border: 1px solid transparent;
        }

        .drawer-nav li a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.1);
        }

        .drawer-nav li a.active {
            color: #7DD3FC;
            background: rgba(14, 93, 168, 0.2);
            border-color: rgba(0, 214, 143, 0.3);
        }

        /* ===== 玻璃卡片 ===== */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
        }

        .glass-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: rgba(255, 255, 255, 0.25);
            pointer-events: none;
        }

        .glass-card:hover {
            border-color: var(--border-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all 0.35s ease;
            border: none;
            white-space: nowrap;
            user-select: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-blue) 0%, #0A3D6B 50%, var(--brand-green) 100%);
            color: #fff;
            box-shadow: var(--shadow-glow-green);
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        .btn-primary:hover {
            box-shadow: var(--shadow-glow-green-strong);
            transform: translateY(-2px);
            filter: brightness(1.05);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-body);
            border: 1px solid rgba(255, 255, 255, 0.25);
            box-shadow: 0 0 0 transparent;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.45);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.4px;
            line-height: 1.4;
        }

        .tag-green {
            background: rgba(0, 214, 143, 0.12);
            color: #6EE7B7;
            border: 1px solid rgba(0, 214, 143, 0.3);
        }

        .tag-blue {
            background: rgba(14, 93, 168, 0.15);
            color: #7DD3FC;
            border: 1px solid rgba(14, 93, 168, 0.4);
        }

        .tag-red {
            background: rgba(229, 72, 77, 0.12);
            color: #FCA5A5;
            border: 1px solid rgba(229, 72, 77, 0.35);
        }

        .tag-gold {
            background: rgba(245, 158, 11, 0.12);
            color: #FDE68A;
            border: 1px solid rgba(245, 158, 11, 0.35);
        }

        /* ===== 板块间距 ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: rgba(10, 22, 40, 0.5);
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 40px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 100px 0 80px;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/2adb0b24669d24cb.webp');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 18, 38, 0.88) 0%, rgba(6, 18, 38, 0.65) 40%, rgba(6, 18, 38, 0.48) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .hero-title {
            font-size: 44px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.25;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #7DD3FC 0%, #00D68F 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 17px;
            color: var(--text-body);
            line-height: 1.9;
            max-width: 560px;
            margin-bottom: 32px;
        }

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

        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-pulse-card {
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
            transition: transform 0.35s ease, border-color 0.35s ease;
        }

        .hero-pulse-card:hover {
            border-color: rgba(0, 214, 143, 0.4);
            transform: translateY(-2px);
        }

        .pulse-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--brand-green);
            box-shadow: 0 0 12px var(--brand-green-glow);
            animation: pulse-dot 2s ease-in-out infinite;
            flex-shrink: 0;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }

        .hero-card-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .hero-card-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .hero-score {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-left: auto;
            letter-spacing: 1px;
        }

        /* ===== 数据指标看板 ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .metric-card {
            padding: 28px 22px;
            text-align: center;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            transition: all 0.35s ease;
        }

        .metric-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            transform: translateY(-3px);
        }

        .metric-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-green);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            text-shadow: 0 0 20px rgba(0, 214, 143, 0.3);
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== 服务矩阵 ===== */
        .service-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 24px;
        }

        .service-card {
            padding: 32px 28px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            transition: all 0.35s ease;
        }

        .service-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .service-card.featured {
            grid-row: span 2;
            background: rgba(14, 93, 168, 0.1);
            border-color: rgba(0, 214, 143, 0.2);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            background: rgba(0, 214, 143, 0.1);
            color: var(--brand-green);
            border: 1px solid rgba(0, 214, 143, 0.25);
        }

        .service-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .service-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ===== 对比区域 ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            position: relative;
        }

        .compare-col {
            padding: 36px 32px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .compare-col.left {
            border-right: none;
            border-top-right-radius: 0;
            border-bottom-right-radius: 0;
        }

        .compare-col.right {
            border-left: none;
            border-top-left-radius: 0;
            border-bottom-left-radius: 0;
            background: rgba(0, 214, 143, 0.06);
            border-color: rgba(0, 214, 143, 0.22);
        }

        .compare-divider {
            position: absolute;
            left: 50%;
            top: 20px;
            bottom: 20px;
            width: 2px;
            background: linear-gradient(180deg, transparent, rgba(0, 214, 143, 0.6), transparent);
            transform: translateX(-50%);
        }

        .compare-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .compare-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
        }

        .compare-item i {
            margin-top: 4px;
            font-size: 14px;
            flex-shrink: 0;
        }

        .compare-item i.fa-check {
            color: var(--brand-green);
        }
        .compare-item i.fa-xmark {
            color: var(--brand-red);
        }

        /* ===== 时间线 ===== */
        .timeline {
            position: relative;
            padding-left: 30px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 6px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, rgba(0, 214, 143, 0.6), rgba(14, 93, 168, 0.4), rgba(0, 214, 143, 0.2));
        }

        .timeline-item {
            position: relative;
            padding-bottom: 36px;
            padding-left: 22px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -29px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--brand-green);
            box-shadow: 0 0 14px var(--brand-green-glow);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .timeline-dot.gold {
            background: var(--brand-gold);
            box-shadow: 0 0 14px rgba(245, 158, 11, 0.5);
        }

        .timeline-card {
            padding: 24px 28px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            transition: all 0.35s ease;
        }

        .timeline-card:hover {
            border-color: rgba(0, 214, 143, 0.35);
            background: rgba(255, 255, 255, 0.07);
            transform: translateX(4px);
        }

        .timeline-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 资讯卡片 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.35s ease;
        }

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

        .news-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

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

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

        .news-body {
            padding: 24px 22px;
        }

        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: rgba(255, 255, 255, 0.03);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 214, 143, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            user-select: none;
            gap: 16px;
            transition: color 0.3s ease;
        }

        .faq-question:hover {
            color: #7DD3FC;
        }

        .faq-arrow {
            font-size: 14px;
            color: var(--brand-green);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            background: rgba(255, 255, 255, 0.04);
            border-top: 1px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            border-top-color: rgba(255, 255, 255, 0.08);
        }

        .faq-answer p {
            padding: 18px 22px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ===== 表单 ===== */
        .form-input {
            width: 100%;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-primary);
            font-size: 15px;
            transition: border-color 0.35s ease, box-shadow 0.35s ease;
            outline: none;
        }

        .form-input::placeholder {
            color: var(--text-muted);
        }

        .form-input:focus {
            border-color: rgba(0, 214, 143, 0.55);
            box-shadow: 0 0 0 3px rgba(0, 214, 143, 0.15), 0 0 20px rgba(0, 214, 143, 0.1);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #050A12;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--brand-green);
        }

        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 16px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-muted);
            font-size: 16px;
            transition: all 0.3s ease;
        }

        .footer-social a:hover {
            border-color: rgba(0, 214, 143, 0.4);
            color: var(--brand-green);
            background: rgba(0, 214, 143, 0.08);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 数据图表装饰 ===== */
        .chart-bar {
            display: flex;
            align-items: flex-end;
            gap: 10px;
            height: 100px;
        }

        .chart-bar .bar {
            flex: 1;
            border-radius: 4px 4px 0 0;
            background: linear-gradient(180deg, rgba(0, 214, 143, 0.8), rgba(14, 93, 168, 0.5));
            transition: height 0.5s ease;
        }

        /* ===== 社区卡片 ===== */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .community-card {
            padding: 24px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.35s ease;
        }

        .community-card:hover {
            border-color: rgba(0, 214, 143, 0.35);
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-3px);
        }

        .community-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .community-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            overflow: hidden;
            border: 2px solid rgba(0, 214, 143, 0.4);
            flex-shrink: 0;
        }

        .community-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .community-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .community-time {
            font-size: 12px;
            color: var(--text-muted);
        }

        .community-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        /* ===== 场景卡 ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scene-card {
            padding: 28px 24px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.35s ease;
        }

        .scene-card:hover {
            border-color: rgba(0, 214, 143, 0.35);
            transform: translateY(-3px);
        }

        .scene-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .scene-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 更新日志 ===== */
        .changelog-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .changelog-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
        }

        .changelog-item:hover {
            border-color: rgba(0, 214, 143, 0.3);
            background: rgba(255, 255, 255, 0.06);
        }

        .changelog-version {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-green);
            white-space: nowrap;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            background: rgba(0, 214, 143, 0.1);
        }

        .changelog-content {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ===== 战术深度 ===== */
        .tactics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .tactics-card {
            display: flex;
            gap: 20px;
            padding: 24px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.35s ease;
        }

        .tactics-card:hover {
            border-color: rgba(0, 214, 143, 0.35);
            transform: translateY(-3px);
        }

        .tactics-num {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: rgba(0, 214, 143, 0.3);
            flex-shrink: 0;
            line-height: 1;
        }

        .tactics-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .tactics-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 保障图标条 ===== */
        .assurance-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .assurance-item {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.35s ease;
        }

        .assurance-item:hover {
            border-color: rgba(0, 214, 143, 0.3);
            transform: translateY(-3px);
        }

        .assurance-icon {
            font-size: 28px;
            color: var(--brand-green);
            margin-bottom: 12px;
        }

        .assurance-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .assurance-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 快速解答 ===== */
        .quick-faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .quick-faq-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03);
            border-left: 3px solid var(--brand-green);
        }

        .quick-faq-q {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 14px;
            min-width: 90px;
            flex-shrink: 0;
        }

        .quick-faq-a {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 36px;
            }
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .service-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-card.featured {
                grid-column: span 2;
                grid-row: auto;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .community-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .assurance-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .tactics-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .compare-divider {
                display: none;
            }
            .compare-col.left {
                border-right: 1px solid rgba(255, 255, 255, 0.08);
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            }
            .compare-col.right {
                border-left: 1px solid rgba(0, 214, 143, 0.22);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .hero {
                padding: 70px 0 50px;
                min-height: auto;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 23px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .metric-number {
                font-size: 26px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-card.featured {
                grid-column: auto;
                grid-row: auto;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .community-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .assurance-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .changelog-item {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-title {
                font-size: 26px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .assurance-grid {
                grid-template-columns: 1fr;
            }
            .timeline {
                padding-left: 20px;
            }
            .timeline-dot {
                left: -19px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer p {
                padding: 14px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #060E1A;
            --bg-secondary: #0A1628;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-card-hover: rgba(0, 214, 143, 0.45);
            --brand-blue: #0E5DA8;
            --brand-blue-light: #1A7FC4;
            --brand-green: #00D68F;
            --brand-green-glow: rgba(0, 214, 143, 0.5);
            --brand-red: #E5484D;
            --brand-gold: #F59E0B;
            --text-primary: #F8FAFC;
            --text-body: #C4D1E0;
            --text-muted: #7A8EA6;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
            --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
            --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.85;
            font-size: 16px;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-padding {
            padding-top: 72px;
            padding-bottom: 72px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 18, 38, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 214, 143, 0.18);
            transition: background 0.35s ease, box-shadow 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(6, 18, 38, 0.94);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.42);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            cursor: pointer;
            user-select: none;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--text-primary);
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease, transform 0.3s ease;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--brand-green);
            box-shadow: 0 0 10px var(--brand-green-glow);
            transition: width 0.35s ease;
        }

        .nav-links li a:hover {
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: #7DD3FC;
            font-weight: 600;
        }

        .nav-links li a.active::after {
            width: 100%;
            background: var(--brand-green);
            box-shadow: 0 0 12px var(--brand-green-glow);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 6px 10px;
            line-height: 1;
            transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
        }

        .nav-toggle:hover {
            color: var(--brand-green);
            border-color: var(--brand-green);
            background: rgba(0, 214, 143, 0.06);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: rgba(6, 18, 38, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid rgba(0, 214, 143, 0.25);
            z-index: 200;
            transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            box-shadow: -12px 0 40px rgba(0, 0, 0, 0.5);
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer-close {
            align-self: flex-end;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 22px;
            cursor: pointer;
            padding: 4px 8px;
            transition: color 0.3s ease;
        }

        .mobile-drawer-close:hover {
            color: var(--brand-green);
        }

        .mobile-drawer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer-links li a {
            display: flex;
            align-items: center;
            gap: 10px;
            height: 44px;
            padding: 0 14px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: background 0.3s ease, color 0.3s ease;
        }

        .mobile-drawer-links li a i {
            width: 20px;
            text-align: center;
            color: var(--brand-green);
            font-size: 14px;
        }

        .mobile-drawer-links li a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .mobile-drawer-links li a.active {
            background: rgba(0, 214, 143, 0.1);
            color: #7DD3FC;
            font-weight: 600;
        }

        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.5);
            z-index: 150;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s ease;
        }

        .drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 20px 0 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

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

        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--text-body);
            font-weight: 500;
        }

        /* ===== 分类页头部 ===== */
        .category-hero {
            position: relative;
            padding: 48px 0 32px;
            background: radial-gradient(ellipse at 30% 20%, rgba(14, 93, 168, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(0, 214, 143, 0.08) 0%, transparent 50%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.8px;
            line-height: 1.35;
            margin: 0 0 12px;
        }

        .category-hero .category-subtitle {
            font-size: 16px;
            color: var(--text-body);
            max-width: 720px;
            line-height: 1.8;
            margin: 0;
        }

        .category-hero .category-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .category-hero .category-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .category-hero .category-meta i {
            color: var(--brand-green);
        }

        /* ===== 玻璃卡片 ===== */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease, background 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        .glass-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
            pointer-events: none;
        }

        .glass-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            background: var(--bg-card-hover);
        }

        /* ===== 数据简报卡片 ===== */
        .data-brief-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .data-brief-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            transition: border-color 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
        }

        .data-brief-card:hover {
            border-color: var(--border-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .data-brief-card .data-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .data-brief-card .data-number .unit {
            font-size: 14px;
            color: var(--brand-green);
            font-weight: 500;
            margin-left: 4px;
        }

        .data-brief-card .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.4px;
        }

        .data-brief-card .data-icon {
            font-size: 20px;
            color: var(--brand-green);
            margin-bottom: 8px;
            display: block;
        }

        /* ===== 文章列表卡片 ===== */
        .article-list-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .article-card-horizontal {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 20px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
            position: relative;
        }

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

        .article-card-horizontal .article-image {
            position: relative;
            overflow: hidden;
            min-height: 180px;
        }

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

        .article-card-horizontal:hover .article-image img {
            transform: scale(1.04);
        }

        .article-card-horizontal .article-image .tag-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(6, 18, 38, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(0, 214, 143, 0.4);
            color: var(--brand-green);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        .article-card-horizontal .article-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 18px 20px 18px 0;
        }

        .article-card-horizontal .article-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin: 0 0 8px;
            transition: color 0.3s ease;
        }

        .article-card-horizontal:hover .article-title {
            color: #7DD3FC;
        }

        .article-card-horizontal .article-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-horizontal .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .article-card-horizontal .article-meta i {
            color: var(--brand-green);
            margin-right: 4px;
        }

        /* ===== 精选文章区 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .featured-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
            position: relative;
        }

        .featured-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .featured-card .featured-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

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

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

        .featured-card .featured-body {
            padding: 18px 20px 20px;
        }

        .featured-card .featured-tag {
            display: inline-block;
            background: rgba(0, 214, 143, 0.12);
            color: var(--brand-green);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 14px;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
        }

        .featured-card .featured-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin: 0 0 8px;
            transition: color 0.3s ease;
        }

        .featured-card:hover .featured-title {
            color: #7DD3FC;
        }

        .featured-card .featured-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ===== 本周热点横向滑动 ===== */
        .hot-scroll-wrapper {
            position: relative;
            overflow: hidden;
            margin: 0 -4px;
        }

        .hot-scroll-track {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding: 4px 4px 16px;
            scroll-behavior: smooth;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(0, 214, 143, 0.4) transparent;
        }

        .hot-scroll-track::-webkit-scrollbar {
            height: 5px;
        }

        .hot-scroll-track::-webkit-scrollbar-track {
            background: transparent;
        }

        .hot-scroll-track::-webkit-scrollbar-thumb {
            background: rgba(0, 214, 143, 0.4);
            border-radius: 10px;
        }

        .hot-card {
            flex: 0 0 280px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
            cursor: pointer;
        }

        .hot-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .hot-card .hot-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

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

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

        .hot-card .hot-body {
            padding: 14px 16px 16px;
        }

        .hot-card .hot-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin: 0 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-card .hot-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 专家观点 ===== */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .expert-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: border-color 0.35s ease, box-shadow 0.35s ease;
            position: relative;
        }

        .expert-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
        }

        .expert-card .expert-quote {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0 0 14px;
            position: relative;
            padding-left: 16px;
            border-left: 3px solid var(--brand-green);
        }

        .expert-card .expert-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .expert-card .expert-name i {
            color: var(--brand-gold);
            font-size: 14px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.35s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 214, 143, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            width: 100%;
            padding: 16px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            transition: color 0.3s ease;
            text-align: left;
        }

        .faq-question:hover {
            color: #7DD3FC;
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-green);
            font-size: 12px;
            transition: transform 0.4s ease;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 14px;
            margin-top: -2px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #050A12;
            border-top: 1px solid rgba(0, 214, 143, 0.15);
            padding-top: 48px;
            padding-bottom: 20px;
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
            max-width: 340px;
        }

        .footer-social {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .footer-social a {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .footer-social a:hover {
            border-color: var(--brand-green);
            color: var(--brand-green);
            box-shadow: 0 0 12px rgba(0, 214, 143, 0.3);
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-links li a:hover {
            color: var(--brand-green);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 18px;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .data-brief-grid {
                grid-template-columns: repeat(3, 1fr);
            }

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

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

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

            .article-card-horizontal {
                grid-template-columns: 220px 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                height: 64px;
            }

            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .section-padding {
                padding-top: 52px;
                padding-bottom: 52px;
            }

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

            .category-hero .category-subtitle {
                font-size: 14px;
            }

            .data-brief-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .data-brief-card {
                padding: 16px 14px;
            }

            .data-brief-card .data-number {
                font-size: 22px;
            }

            .article-card-horizontal {
                grid-template-columns: 1fr;
            }

            .article-card-horizontal .article-image {
                aspect-ratio: 16/9;
                min-height: auto;
            }

            .article-card-horizontal .article-body {
                padding: 16px 18px 18px;
            }

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

            .hot-card {
                flex: 0 0 240px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

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

            .data-brief-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .data-brief-card .data-number {
                font-size: 18px;
            }

            .data-brief-card .data-label {
                font-size: 11px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .expert-card {
                padding: 18px;
            }

            .hot-card {
                flex: 0 0 210px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #060E1A;
            --bg-secondary: #0A1628;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-card-hover: rgba(0, 214, 143, 0.45);
            --brand-blue: #0E5DA8;
            --brand-blue-light: #1A7FC4;
            --brand-green: #00D68F;
            --brand-green-glow: rgba(0, 214, 143, 0.5);
            --brand-red: #E5484D;
            --brand-gold: #F59E0B;
            --text-primary: #F8FAFC;
            --text-body: #C4D1E0;
            --text-muted: #7A8EA6;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
            --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
            --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.85;
            font-size: 16px;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 18, 38, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 214, 143, 0.18);
            transition: background 0.35s ease;
        }
        .site-header.scrolled {
            background: rgba(6, 18, 38, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            cursor: pointer;
            user-select: none;
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--text-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }
        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease, transform 0.3s ease;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-links li a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--brand-green);
            box-shadow: 0 0 10px var(--brand-green-glow);
            transition: width 0.35s ease;
        }
        .nav-links li a:hover {
            color: #fff;
            transform: translateY(-1px);
        }
        .nav-links li a:hover::after {
            width: 100%;
        }
        .nav-links li a.active {
            color: #7DD3FC;
            font-weight: 600;
        }
        .nav-links li a.active::after {
            width: 100%;
            background: var(--brand-green);
            box-shadow: 0 0 12px var(--brand-green-glow);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 6px;
            line-height: 1;
            transition: color 0.3s ease;
        }
        .nav-toggle:hover {
            color: var(--brand-green);
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: rgba(6, 18, 38, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid rgba(0, 214, 143, 0.25);
            z-index: 200;
            transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .mobile-drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-drawer-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-drawer-close {
            background: transparent;
            border: none;
            color: var(--text-body);
            font-size: 24px;
            cursor: pointer;
            padding: 4px;
            line-height: 1;
            transition: color 0.3s ease;
        }
        .mobile-drawer-close:hover {
            color: var(--brand-green);
        }
        .mobile-nav-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav-links li a {
            display: block;
            padding: 12px 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
            letter-spacing: 0.3px;
        }
        .mobile-nav-links li a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .mobile-nav-links li a.active {
            background: rgba(0, 214, 143, 0.1);
            color: #7DD3FC;
            font-weight: 600;
        }
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.55);
            z-index: 150;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.4s ease, visibility 0.4s ease;
        }
        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 24px 0 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }
        .breadcrumb a:hover {
            color: var(--brand-green);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--brand-green);
            font-weight: 500;
        }
        /* ===== 分类页头 ===== */
        .category-hero {
            padding: 56px 0 40px;
            position: relative;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 214, 143, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .category-hero .hero-sub {
            font-size: 17px;
            color: var(--text-body);
            max-width: 720px;
            line-height: 1.85;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 214, 143, 0.12);
            border: 1px solid rgba(0, 214, 143, 0.3);
            color: var(--brand-green);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        /* ===== 板块通用 ===== */
        .section-block {
            padding: 56px 0;
        }
        .section-block-alt {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .section-title {
            font-size: 26px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
            letter-spacing: 0.3px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .section-header-flex {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 28px;
        }
        .section-header-flex .section-title {
            margin-bottom: 0;
        }
        .section-header-flex .section-sub {
            margin-bottom: 0;
            max-width: 560px;
        }
        /* ===== 玻璃卡片 ===== */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        .glass-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: rgba(255, 255, 255, 0.25);
            pointer-events: none;
        }
        .glass-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .glass-card-sm {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        .glass-card-sm::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: rgba(255, 255, 255, 0.25);
            pointer-events: none;
        }
        .glass-card-sm:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        /* ===== 标签 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .tag-green {
            background: rgba(0, 214, 143, 0.12);
            border: 1px solid rgba(0, 214, 143, 0.3);
            color: var(--brand-green);
        }
        .tag-blue {
            background: rgba(14, 93, 168, 0.15);
            border: 1px solid rgba(14, 93, 168, 0.4);
            color: #7DD3FC;
        }
        .tag-gold {
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.35);
            color: var(--brand-gold);
        }
        .tag-red {
            background: rgba(229, 72, 77, 0.12);
            border: 1px solid rgba(229, 72, 77, 0.35);
            color: var(--brand-red);
        }
        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            border: none;
            border-radius: var(--radius-md);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            cursor: pointer;
            box-shadow: var(--shadow-glow-green);
            transition: all 0.4s ease;
            letter-spacing: 0.3px;
            line-height: 1.5;
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-glow-green-strong);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 500;
            padding: 11px 26px;
            cursor: pointer;
            transition: all 0.4s ease;
            letter-spacing: 0.3px;
            line-height: 1.5;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.45);
            color: #fff;
            transform: translateY(-2px);
        }
        /* ===== 文章卡片 ===== */
        .article-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.4s ease;
            cursor: pointer;
        }
        .article-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .article-card .article-img-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-secondary);
        }
        .article-card .article-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .article-card:hover .article-img-wrapper img {
            transform: scale(1.04);
        }
        .article-card .article-img-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(6, 18, 38, 0.6) 100%);
            pointer-events: none;
        }
        .article-card .article-body {
            padding: 20px 22px 22px;
        }
        .article-card .article-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            letter-spacing: 0.2px;
        }
        .article-card .article-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .article-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .article-card .article-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        /* ===== 精选文章大型卡片 ===== */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.4s ease;
            cursor: pointer;
            min-height: 320px;
        }
        .featured-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .featured-card .featured-img {
            position: relative;
            overflow: hidden;
            min-height: 320px;
            background: var(--bg-secondary);
        }
        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .featured-card:hover .featured-img img {
            transform: scale(1.04);
        }
        .featured-card .featured-body {
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card .featured-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .featured-card .featured-excerpt {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .featured-card.reverse {
            grid-template-columns: 1fr 1fr;
        }
        .featured-card.reverse .featured-img {
            order: 2;
        }
        .featured-card.reverse .featured-body {
            order: 1;
        }
        /* ===== 数据简报 ===== */
        .data-brief-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            text-align: center;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        .data-brief-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        .data-brief-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .data-brief-card:hover::before {
            opacity: 1;
        }
        .data-brief-card .data-value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--brand-green);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }
        .data-brief-card .data-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
            line-height: 1.5;
        }
        .data-brief-card .data-unit {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 400;
        }
        /* ===== 横向滚动热点 ===== */
        .hot-scroll-wrap {
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 12px;
            margin-left: -4px;
            margin-right: -4px;
        }
        .hot-scroll-wrap::-webkit-scrollbar {
            height: 6px;
        }
        .hot-scroll-wrap::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 3px;
        }
        .hot-scroll-wrap::-webkit-scrollbar-thumb {
            background: rgba(0, 214, 143, 0.3);
            border-radius: 3px;
        }
        .hot-scroll-inner {
            display: flex;
            gap: 18px;
            padding: 4px;
        }
        .hot-card {
            flex: 0 0 320px;
            scroll-snap-align: start;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.4s ease;
            cursor: pointer;
        }
        .hot-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .hot-card .hot-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .hot-card .hot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .hot-card:hover .hot-img img {
            transform: scale(1.04);
        }
        .hot-card .hot-body {
            padding: 16px 18px 18px;
        }
        .hot-card .hot-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .hot-card .hot-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        /* ===== 专家观点 ===== */
        .expert-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all 0.4s ease;
        }
        .expert-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .expert-card .expert-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }
        .expert-card .expert-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(0, 214, 143, 0.3);
        }
        .expert-card .expert-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .expert-card .expert-role {
            font-size: 13px;
            color: var(--text-muted);
        }
        .expert-card .expert-quote {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            position: relative;
            padding-left: 16px;
            border-left: 2px solid var(--brand-green);
        }
        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.35s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 214, 143, 0.2);
        }
        .faq-item.active {
            border-color: rgba(0, 214, 143, 0.35);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            transition: all 0.3s ease;
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question span {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .faq-question .faq-arrow {
            color: var(--brand-green);
            font-size: 14px;
            transition: transform 0.4s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-arrow {
            transform: rotate(90deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.22, 1, 0.36, 1);
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
        }
        /* ===== CTA 区块 ===== */
        .cta-box {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(0, 214, 143, 0.3);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 214, 143, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-box .cta-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.45;
            position: relative;
            z-index: 1;
        }
        .cta-box .cta-sub {
            font-size: 15px;
            color: var(--text-body);
            margin-bottom: 24px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        .cta-box .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        /* ===== 专题入口 ===== */
        .topic-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            transition: all 0.4s ease;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topic-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .topic-card .topic-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
        }
        .topic-card .topic-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: #050A12;
            border-top: 1px solid rgba(0, 214, 143, 0.12);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 18px;
            max-width: 380px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-body);
            font-size: 16px;
            transition: all 0.35s ease;
        }
        .footer-social a:hover {
            background: rgba(0, 214, 143, 0.15);
            border-color: rgba(0, 214, 143, 0.35);
            color: var(--brand-green);
            transform: translateY(-2px);
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease, transform 0.3s ease;
            display: inline-flex;
            align-items: center;
        }
        .footer-links li a:hover {
            color: var(--brand-green);
            transform: translateX(2px);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 22px;
            }
            .nav-links li a {
                font-size: 14px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .featured-card {
                grid-template-columns: 1fr;
                min-height: auto;
            }
            .featured-card .featured-img {
                min-height: 220px;
                order: 1 !important;
            }
            .featured-card .featured-body {
                order: 2 !important;
                padding: 24px;
            }
            .featured-card.reverse .featured-img {
                order: 1 !important;
            }
            .featured-card.reverse .featured-body {
                order: 2 !important;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-wrapper {
                height: 64px;
            }
            .section-block {
                padding: 40px 0;
            }
            .category-hero {
                padding: 40px 0 28px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .hero-sub {
                font-size: 15px;
            }
            .section-title {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hot-card {
                flex: 0 0 260px;
            }
            .cta-box {
                padding: 28px 22px;
            }
            .cta-box .cta-title {
                font-size: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .data-brief-card .data-value {
                font-size: 22px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 19px;
            }
            .article-card .article-title {
                font-size: 15px;
            }
            .btn-primary {
                padding: 10px 20px;
                font-size: 14px;
            }
            .btn-secondary {
                padding: 9px 18px;
                font-size: 14px;
            }
            .expert-card {
                padding: 18px;
            }
            .expert-card .expert-avatar {
                width: 40px;
                height: 40px;
                font-size: 15px;
            }
            .data-brief-card {
                padding: 18px 14px;
            }
            .data-brief-card .data-value {
                font-size: 19px;
            }
            .hot-card {
                flex: 0 0 220px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #060E1A;
            --bg-secondary: #0A1628;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-card-hover: rgba(0, 214, 143, 0.45);
            --brand-blue: #0E5DA8;
            --brand-blue-light: #1A7FC4;
            --brand-green: #00D68F;
            --brand-green-glow: rgba(0, 214, 143, 0.5);
            --brand-red: #E5484D;
            --brand-gold: #F59E0B;
            --text-primary: #F8FAFC;
            --text-body: #C4D1E0;
            --text-muted: #7A8EA6;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
            --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
            --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.85;
            font-size: 16px;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 18, 38, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 214, 143, 0.18);
            transition: background 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(6, 18, 38, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            cursor: pointer;
            user-select: none;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--text-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease, transform 0.3s ease;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--brand-green);
            box-shadow: 0 0 10px var(--brand-green-glow);
            transition: width 0.35s ease;
        }

        .nav-links li a:hover {
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: #7DD3FC;
            font-weight: 600;
        }

        .nav-links li a.active::after {
            width: 100%;
            background: var(--brand-green);
            box-shadow: 0 0 12px var(--brand-green-glow);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 6px;
            line-height: 1;
            transition: color 0.3s ease;
        }

        .nav-toggle:hover {
            color: var(--brand-green);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: rgba(6, 18, 38, 0.97);
            backdrop-filter: blur(20px);
            border-left: 1px solid rgba(0, 214, 143, 0.25);
            z-index: 200;
            transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer .drawer-header {
            display: flex;
            justify-content: flex-end;
            margin-bottom: 12px;
        }

        .mobile-drawer .drawer-close {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 24px;
            cursor: pointer;
        }

        .mobile-drawer .drawer-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-drawer .drawer-links li a {
            font-size: 16px;
            color: var(--text-body);
            padding: 10px 12px;
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
            display: block;
        }

        .mobile-drawer .drawer-links li a:hover,
        .mobile-drawer .drawer-links li a.active {
            background: rgba(0, 214, 143, 0.12);
            color: #fff;
        }

        .mobile-drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 150;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }

        .mobile-drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 玻璃卡片通用 ===== */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .glass-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: rgba(255, 255, 255, 0.25);
            pointer-events: none;
        }

        .glass-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            color: #fff;
            font-weight: 600;
            letter-spacing: 0.4px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-glow-green);
            transition: all 0.35s ease;
        }

        .btn-primary:hover {
            box-shadow: var(--shadow-glow-green-strong);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-primary);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.35s ease;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        /* ===== 标签徽章 ===== */
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: rgba(0, 214, 143, 0.12);
            color: var(--brand-green);
            border: 1px solid rgba(0, 214, 143, 0.25);
        }

        .badge-blue {
            background: rgba(14, 93, 168, 0.18);
            color: #7DD3FC;
            border: 1px solid rgba(14, 93, 168, 0.35);
        }

        .badge-gold {
            background: rgba(245, 158, 11, 0.15);
            color: var(--brand-gold);
            border: 1px solid rgba(245, 158, 11, 0.35);
        }

        .badge-red {
            background: rgba(229, 72, 77, 0.15);
            color: var(--brand-red);
            border: 1px solid rgba(229, 72, 77, 0.35);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            padding-top: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.3);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--text-body);
            font-weight: 500;
        }

        /* ===== 分类页特有样式 ===== */
        .article-card {
            transition: all 0.35s ease;
        }

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

        .article-cover {
            overflow: hidden;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            aspect-ratio: 16/9;
            position: relative;
        }

        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .article-cover .overlay-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .article-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.3s ease;
        }

        .article-card:hover .article-title {
            color: var(--brand-green);
        }

        .article-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Featured article style */
        .featured-article {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }

        .featured-article .featured-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .featured-article .featured-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .featured-article:hover .featured-cover img {
            transform: scale(1.03);
        }

        /* ===== 数据简报 ===== */
        .data-brief-item {
            text-align: center;
        }

        .data-brief-value {
            font-family: var(--font-mono);
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
        }

        .data-brief-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item.active {
            border-color: rgba(0, 214, 143, 0.35);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 15px;
            background: rgba(255, 255, 255, 0.04);
            transition: background 0.3s ease;
            user-select: none;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.07);
        }

        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--brand-green);
            transition: transform 0.35s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(90deg);
        }

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

        .faq-answer-inner {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #050A12;
            border-top: 1px solid rgba(0, 214, 143, 0.15);
            padding: 48px 0 24px;
            margin-top: 80px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 300px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all 0.3s ease;
            font-size: 16px;
        }

        .footer-social a:hover {
            background: rgba(0, 214, 143, 0.2);
            color: var(--brand-green);
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-links li a:hover {
            color: var(--brand-green);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 20px;
            }
            .featured-article {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-drawer {
                display: flex;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .data-brief-value {
                font-size: 28px;
            }
            .featured-article {
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                position: relative;
            }
            .nav-wrapper {
                height: 64px;
            }
            .breadcrumb {
                font-size: 12px;
                padding-top: 16px;
            }
            .article-title {
                font-size: 15px;
            }
        }

        /* ===== 本周热点横向滚动 ===== */
        .hot-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 8px;
        }

        .hot-scroll::-webkit-scrollbar {
            height: 4px;
        }

        .hot-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 4px;
        }

        .hot-scroll::-webkit-scrollbar-thumb {
            background: rgba(0, 214, 143, 0.4);
            border-radius: 4px;
        }

        .hot-card {
            min-width: 280px;
            max-width: 300px;
            scroll-snap-align: start;
            flex-shrink: 0;
        }

/* roulang page: category4 */
:root {
      --bg-primary: #060E1A;
      --bg-secondary: #0A1628;
      --bg-card: rgba(255, 255, 255, 0.06);
      --bg-card-hover: rgba(255, 255, 255, 0.09);
      --border-card: rgba(255, 255, 255, 0.12);
      --border-card-hover: rgba(0, 214, 143, 0.45);
      --brand-blue: #0E5DA8;
      --brand-blue-light: #1A7FC4;
      --brand-green: #00D68F;
      --brand-green-glow: rgba(0, 214, 143, 0.5);
      --brand-red: #E5484D;
      --brand-gold: #F59E0B;
      --text-primary: #F8FAFC;
      --text-body: #C4D1E0;
      --text-muted: #7A8EA6;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
      --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-xl: 24px;
      --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
      --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
      --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
      --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-primary);
      color: var(--text-body);
      line-height: 1.85;
      font-size: 16px;
      overflow-x: hidden;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.3s ease;
    }
    button, input {
      font-family: inherit;
      font-size: inherit;
    }
    button:focus-visible, a:focus-visible, input:focus-visible {
      outline: 2px solid var(--brand-green);
      outline-offset: 3px;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* 导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(6, 18, 38, 0.78);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 214, 143, 0.18);
      transition: background 0.35s ease;
    }
    .site-header.scrolled {
      background: rgba(6, 18, 38, 0.92);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: 0.5px;
      cursor: pointer;
      user-select: none;
    }
    .nav-logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
      flex-shrink: 0;
    }
    .nav-logo span { color: var(--text-primary); }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
    }
    .nav-links li a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      padding: 6px 2px;
      position: relative;
      transition: color 0.3s ease, transform 0.3s ease;
      letter-spacing: 0.3px;
      white-space: nowrap;
    }
    .nav-links li a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 0;
      height: 2px;
      background: var(--brand-green);
      box-shadow: 0 0 10px var(--brand-green-glow);
      transition: width 0.35s ease;
    }
    .nav-links li a:hover {
      color: #fff;
      transform: translateY(-1px);
    }
    .nav-links li a:hover::after { width: 100%; }
    .nav-links li a.active {
      color: #7DD3FC;
      font-weight: 600;
    }
    .nav-links li a.active::after {
      width: 100%;
      background: var(--brand-green);
      box-shadow: 0 0 12px var(--brand-green-glow);
    }
    .nav-toggle {
      display: none;
      background: transparent;
      border: none;
      color: var(--text-primary);
      font-size: 26px;
      cursor: pointer;
      padding: 6px;
      line-height: 1;
      transition: color 0.3s ease;
    }
    .nav-toggle:hover { color: var(--brand-green); }
    .mobile-drawer {
      position: fixed;
      top: 0;
      right: -320px;
      width: 300px;
      height: 100vh;
      background: rgba(6, 18, 38, 0.97);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-left: 1px solid rgba(0, 214, 143, 0.25);
      z-index: 200;
      transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .mobile-drawer.open { right: 0; }
    .mobile-drawer .drawer-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-primary);
      font-size: 18px;
      font-weight: 700;
    }
    .drawer-close {
      background: transparent;
      border: none;
      color: var(--text-body);
      font-size: 24px;
      cursor: pointer;
    }
    .drawer-close:hover { color: var(--brand-green); }
    .mobile-drawer .drawer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .mobile-drawer .drawer-links li a {
      display: block;
      padding: 10px 12px;
      font-size: 16px;
      color: var(--text-body);
      border-radius: 10px;
      transition: background 0.3s ease, color 0.3s ease;
    }
    .mobile-drawer .drawer-links li a:hover,
    .mobile-drawer .drawer-links li a.active {
      background: rgba(255,255,255,0.08);
      color: #7DD3FC;
    }
    /* 面包屑 */
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
      padding: 24px 0 8px;
    }
    .breadcrumb a {
      color: var(--text-body);
      transition: color 0.3s;
    }
    .breadcrumb a:hover { color: var(--brand-green); }
    .breadcrumb .separator { color: var(--text-muted); }
    .breadcrumb .current { color: var(--text-primary); font-weight: 500; }
    /* 板块通用 */
    .section {
      padding: 60px 0;
      position: relative;
    }
    .section-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 16px;
    }
    .section-title {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: 0.5px;
      line-height: 1.4;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
    }
    /* 玻璃卡片 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    }
    .glass-card:hover {
      transform: translateY(-2px);
      border-color: var(--border-card-hover);
      box-shadow: var(--shadow-card-hover);
      background: var(--bg-card-hover);
    }
    /* 按钮 */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
      color: #fff;
      font-weight: 600;
      border-radius: var(--radius-md);
      padding: 12px 24px;
      border: none;
      cursor: pointer;
      box-shadow: var(--shadow-glow-green);
      transition: box-shadow 0.3s ease, transform 0.3s ease, filter 0.3s ease;
      font-size: 15px;
      letter-spacing: 0.3px;
    }
    .btn-primary:hover {
      box-shadow: var(--shadow-glow-green-strong);
      transform: translateY(-2px);
      filter: brightness(1.05);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: transparent;
      color: var(--text-primary);
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: var(--radius-md);
      padding: 12px 24px;
      cursor: pointer;
      font-weight: 500;
      transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
      font-size: 15px;
    }
    .btn-secondary:hover {
      background: rgba(255,255,255,0.08);
      border-color: rgba(255,255,255,0.45);
      transform: translateY(-2px);
    }
    /* 标签 */
    .tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.3px;
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(0, 214, 143, 0.12);
      color: var(--brand-green);
      border: 1px solid rgba(0, 214, 143, 0.3);
    }
    .tag-blue {
      background: rgba(30, 130, 200, 0.15);
      color: #7DD3FC;
      border-color: rgba(30, 130, 200, 0.35);
    }
    .tag-red {
      background: rgba(229, 72, 77, 0.15);
      color: #ff8a8e;
      border-color: rgba(229, 72, 77, 0.35);
    }
    .tag-gold {
      background: rgba(245, 158, 11, 0.15);
      color: #fbbf24;
      border-color: rgba(245, 158, 11, 0.35);
    }
    /* FAQ */
    .faq-item {
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-md);
      background: rgba(255,255,255,0.04);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.3s;
    }
    .faq-item.active { border-color: rgba(0, 214, 143, 0.4); }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 20px;
      cursor: pointer;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      user-select: none;
      background: transparent;
      border: none;
      width: 100%;
      text-align: left;
      gap: 16px;
    }
    .faq-question .faq-icon {
      font-size: 14px;
      color: var(--brand-green);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-icon { transform: rotate(90deg); }
    .faq-answer {
      padding: 0 20px 16px;
      color: var(--text-body);
      font-size: 14px;
      line-height: 1.7;
      display: none;
    }
    .faq-item.active .faq-answer { display: block; }
    /* 表单 */
    .subscribe-form {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      align-items: center;
      margin-top: 24px;
    }
    .subscribe-form input[type="email"] {
      flex: 1 1 260px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.18);
      border-radius: var(--radius-md);
      padding: 12px 16px;
      color: var(--text-primary);
      font-size: 15px;
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
      min-width: 0;
    }
    .subscribe-form input[type="email"]:focus {
      border-color: rgba(0, 214, 143, 0.55);
      box-shadow: 0 0 0 3px rgba(0, 214, 143, 0.15);
      outline: none;
    }
    /* 分类列表 */
    .article-card {
      display: flex;
      flex-direction: column;
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }
    .article-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-card-hover);
      box-shadow: var(--shadow-card-hover);
    }
    .article-card .article-image {
      aspect-ratio: 16/9;
      overflow: hidden;
      background-color: #0A1628;
    }
    .article-card .article-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .article-card:hover .article-image img { transform: scale(1.03); }
    .article-card .article-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex: 1;
    }
    .article-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-primary);
      line-height: 1.5;
    }
    .article-summary {
      font-size: 14px;
      color: var(--text-muted);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .article-meta {
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 12px;
    }
    /* 横向滑动 */
    .horizontal-scroll {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding-bottom: 12px;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
    }
    .horizontal-scroll > * {
      min-width: 280px;
      scroll-snap-align: start;
    }
    .horizontal-scroll::-webkit-scrollbar { height: 6px; }
    .horizontal-scroll::-webkit-scrollbar-track { background: rgba(255,255,255,0.04); border-radius: 10px; }
    .horizontal-scroll::-webkit-scrollbar-thumb { background: rgba(0,214,143,0.35); border-radius: 10px; }
    /* 数据块 */
    .stat-number {
      font-family: var(--font-mono);
      font-size: 32px;
      font-weight: 700;
      color: var(--brand-green);
      letter-spacing: 0.5px;
    }
    /* 页脚 */
    .site-footer {
      background: #050A12;
      border-top: 1px solid rgba(0, 214, 143, 0.2);
      padding: 50px 0 30px;
      margin-top: 60px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 30px;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 18px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 16px;
    }
    .footer-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 300px;
    }
    .footer-social {
      display: flex;
      gap: 12px;
      margin-top: 16px;
    }
    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      border: 1px solid rgba(255,255,255,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-body);
      transition: border-color 0.3s, color 0.3s, background 0.3s;
    }
    .footer-social a:hover {
      border-color: var(--brand-green);
      color: var(--brand-green);
      background: rgba(0,214,143,0.08);
    }
    .footer-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 12px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links a {
      font-size: 14px;
      color: var(--text-muted);
      transition: color 0.3s;
    }
    .footer-links a:hover { color: var(--brand-green); }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      padding-top: 20px;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 13px;
      color: var(--text-muted);
    }
    /* 响应式 */
    @media (max-width: 1024px) {
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .nav-toggle { display: block; }
      .section { padding: 40px 0; }
      .section-title { font-size: 24px; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; }
      .article-card { flex-direction: column; }
      .horizontal-scroll > * { min-width: 240px; }
    }

/* roulang page: category5 */
:root {
            --bg-primary: #060E1A;
            --bg-secondary: #0A1628;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-card-hover: rgba(0, 214, 143, 0.45);
            --brand-blue: #0E5DA8;
            --brand-blue-light: #1A7FC4;
            --brand-green: #00D68F;
            --brand-green-glow: rgba(0, 214, 143, 0.5);
            --brand-red: #E5484D;
            --brand-gold: #F59E0B;
            --text-primary: #F8FAFC;
            --text-body: #C4D1E0;
            --text-muted: #7A8EA6;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
            --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
            --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
        }

        /* roulang page: community */
        :root {
            --bg-primary: #060E1A;
            --bg-secondary: #0A1628;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-card-hover: rgba(0, 214, 143, 0.45);
            --brand-blue: #0E5DA8;
            --brand-blue-light: #1A7FC4;
            --brand-green: #00D68F;
            --brand-green-glow: rgba(0, 214, 143, 0.5);
            --brand-red: #E5484D;
            --brand-gold: #F59E0B;
            --text-primary: #F8FAFC;
            --text-body: #C4D1E0;
            --text-muted: #7A8EA6;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
            --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
            --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.85;
            font-size: 16px;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 18, 38, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 214, 143, 0.18);
            transition: background 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(6, 18, 38, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            cursor: pointer;
            user-select: none;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--text-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease, transform 0.3s ease;
            letter-spacing: 0.3px;
            white-space: nowrap;
            display: inline-block;
        }

        .nav-links li a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--brand-green);
            box-shadow: 0 0 10px var(--brand-green-glow);
            transition: width 0.35s ease;
        }

        .nav-links li a:hover {
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: #7DD3FC;
            font-weight: 600;
        }

        .nav-links li a.active::after {
            width: 100%;
            background: var(--brand-green);
            box-shadow: 0 0 12px var(--brand-green-glow);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 6px;
            line-height: 1;
            transition: color 0.3s ease;
        }

        .nav-toggle:hover {
            color: var(--brand-green);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: rgba(6, 18, 38, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid rgba(0, 214, 143, 0.25);
            z-index: 200;
            transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer-close {
            align-self: flex-end;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 24px;
            cursor: pointer;
            padding: 6px;
            margin-bottom: 16px;
            transition: color 0.3s ease;
        }

        .mobile-drawer-close:hover {
            color: var(--brand-green);
        }

        .mobile-drawer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-drawer-links li a {
            display: block;
            padding: 10px 16px;
            font-size: 16px;
            color: var(--text-body);
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all 0.3s ease;
        }

        .mobile-drawer-links li a:hover,
        .mobile-drawer-links li a.active {
            color: #7DD3FC;
            background: rgba(0, 214, 143, 0.08);
            border-color: rgba(0, 214, 143, 0.3);
        }

        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 150;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 24px 0 12px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

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

        .breadcrumb .divider {
            color: rgba(255, 255, 255, 0.25);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--brand-green);
            font-weight: 500;
        }

        /* ===== 分类页头部 ===== */
        .category-header {
            padding: 40px 0 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .category-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .category-header .category-intro {
            font-size: 16px;
            color: var(--text-body);
            max-width: 820px;
            line-height: 1.9;
        }

        /* ===== 玻璃卡片通用 ===== */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all 0.4s ease;
            overflow: hidden;
            position: relative;
        }

        .glass-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 20%;
            right: 20%;
            height: 1px;
            background: rgba(255, 255, 255, 0.25);
            pointer-events: none;
        }

        .glass-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        /* ===== 数据简报卡片 ===== */
        .stat-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all 0.4s ease;
            text-align: center;
        }

        .stat-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-green);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 1px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.4px;
            transition: all 0.3s ease;
        }

        .tag-green {
            background: rgba(0, 214, 143, 0.12);
            color: var(--brand-green);
            border: 1px solid rgba(0, 214, 143, 0.3);
        }

        .tag-blue {
            background: rgba(14, 93, 168, 0.18);
            color: #7DD3FC;
            border: 1px solid rgba(14, 93, 168, 0.4);
        }

        .tag-gold {
            background: rgba(245, 158, 11, 0.12);
            color: var(--brand-gold);
            border: 1px solid rgba(245, 158, 11, 0.3);
        }

        .tag-red {
            background: rgba(229, 72, 77, 0.12);
            color: var(--brand-red);
            border: 1px solid rgba(229, 72, 77, 0.3);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #0E5DA8 0%, #00D68F 100%);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 18px rgba(0, 214, 143, 0.5);
            transition: all 0.35s ease;
            letter-spacing: 0.5px;
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(0, 214, 143, 0.75);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-md);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-primary);
            font-weight: 500;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.35s ease;
            letter-spacing: 0.3px;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        /* ===== 文章卡片 ===== */
        .article-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.4s ease;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .article-card .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            flex-shrink: 0;
        }

        .article-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

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

        .article-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
            flex: 1;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-card .card-meta .divider-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
        }

        /* ===== 交错布局卡片 ===== */
        .interleaved-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.4s ease;
            padding: 24px;
        }

        .interleaved-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .interleaved-card .interleaved-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .interleaved-card .interleaved-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .interleaved-card .interleaved-content {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .interleaved-card .interleaved-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
        }

        .interleaved-card .interleaved-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .interleaved-card.reverse .interleaved-content {
            direction: ltr;
        }

        .interleaved-card.reverse .interleaved-image {
            direction: ltr;
        }

        /* ===== 热帖列表 ===== */
        .hot-post-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            transition: all 0.35s ease;
            cursor: default;
        }

        .hot-post-item:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            transform: translateX(3px);
        }

        .hot-post-rank {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-green);
            min-width: 40px;
            text-align: center;
            line-height: 1.2;
        }

        .hot-post-rank.gold {
            color: var(--brand-gold);
        }

        .hot-post-rank.red {
            color: var(--brand-red);
        }

        .hot-post-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .hot-post-content p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 版块标题 ===== */
        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .section-heading-wrapper {
            margin-bottom: 28px;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 12px;
            transition: all 0.35s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 214, 143, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            user-select: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.3s ease;
        }

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

        .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(90deg);
            color: var(--brand-green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            background: rgba(255, 255, 255, 0.04);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
        }

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

        /* ===== 社区达人 / 专家 ===== */
        .expert-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            transition: all 0.35s ease;
        }

        .expert-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
        }

        .expert-avatar {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            overflow: hidden;
            flex-shrink: 0;
            border: 2px solid rgba(0, 214, 143, 0.35);
        }

        .expert-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .expert-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .expert-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== CTA 表单 ===== */
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            padding: 13px 18px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-primary);
            font-size: 15px;
            transition: all 0.35s ease;
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }

        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: rgba(0, 214, 143, 0.55);
            box-shadow: 0 0 20px rgba(0, 214, 143, 0.25);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #050A12;
            border-top: 1px solid rgba(0, 214, 143, 0.12);
            padding: 56px 0 28px;
            margin-top: 80px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 340px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-muted);
            font-size: 18px;
            transition: all 0.35s ease;
        }

        .footer-social a:hover {
            background: rgba(0, 214, 143, 0.12);
            border-color: rgba(0, 214, 143, 0.35);
            color: var(--brand-green);
            transform: translateY(-2px);
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-links li a:hover {
            color: var(--brand-green);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 板块间距 ===== */
        .section-space {
            padding: 60px 0;
        }

        .section-space-sm {
            padding: 40px 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .interleaved-card {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .interleaved-card.reverse {
                direction: ltr;
            }

            .interleaved-card.reverse .interleaved-content {
                direction: ltr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .category-header h1 {
                font-size: 28px;
            }

            .section-title {
                font-size: 21px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .section-space {
                padding: 40px 0;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input[type="email"] {
                min-width: auto;
                width: 100%;
            }
        }

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

            .category-header h1 {
                font-size: 24px;
            }

            .stat-number {
                font-size: 26px;
            }

            .article-card .card-title {
                font-size: 15px;
            }

            .interleaved-card {
                padding: 16px;
            }

            .interleaved-card .interleaved-title {
                font-size: 16px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #060E1A;
            --bg-secondary: #0A1628;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-card-hover: rgba(0, 214, 143, 0.45);
            --brand-blue: #0E5DA8;
            --brand-blue-light: #1A7FC4;
            --brand-green: #00D68F;
            --brand-green-glow: rgba(0, 214, 143, 0.5);
            --brand-red: #E5484D;
            --brand-gold: #F59E0B;
            --text-primary: #F8FAFC;
            --text-body: #C4D1E0;
            --text-muted: #7A8EA6;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 214, 143, 0.18);
            --shadow-glow-green: 0 0 18px rgba(0, 214, 143, 0.5);
            --shadow-glow-green-strong: 0 0 28px rgba(0, 214, 143, 0.75);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.85;
            font-size: 16px;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-green);
            outline-offset: 3px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 18, 38, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 214, 143, 0.18);
            transition: background 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(6, 18, 38, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            cursor: pointer;
            user-select: none;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--text-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease, transform 0.3s ease;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--brand-green);
            box-shadow: 0 0 10px var(--brand-green-glow);
            transition: width 0.35s ease;
        }

        .nav-links li a:hover {
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: #7DD3FC;
            font-weight: 600;
        }

        .nav-links li a.active::after {
            width: 100%;
            background: var(--brand-green);
            box-shadow: 0 0 12px var(--brand-green-glow);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 6px;
            line-height: 1;
            transition: color 0.3s ease;
        }

        .nav-toggle:hover {
            color: var(--brand-green);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -340px;
            width: 300px;
            height: 100vh;
            background: rgba(6, 18, 38, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid rgba(0, 214, 143, 0.25);
            z-index: 200;
            transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.5);
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer-close {
            display: flex;
            justify-content: flex-end;
            margin-bottom: 16px;
        }

        .mobile-drawer-close button {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 28px;
            cursor: pointer;
            padding: 4px;
            line-height: 1;
            transition: color 0.3s ease;
        }

        .mobile-drawer-close button:hover {
            color: var(--brand-green);
        }

        .mobile-drawer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .mobile-drawer-links li a {
            display: block;
            padding: 14px 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-body);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: color 0.3s ease, background 0.3s ease;
            border-radius: var(--radius-sm);
        }

        .mobile-drawer-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-drawer-links li a.active {
            color: var(--brand-green);
            font-weight: 600;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 150;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }

        .drawer-overlay.visible {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            padding: 24px 0 0;
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb-bar a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .breadcrumb-bar a:hover {
            color: var(--brand-green);
        }

        .breadcrumb-bar .sep {
            margin: 0 10px;
            color: rgba(255, 255, 255, 0.25);
        }

        .breadcrumb-bar .current {
            color: var(--text-body);
        }

        /* ===== 分类页 H1 区 ===== */
        .category-hero {
            padding: 24px 0 40px;
        }

        .category-hero .h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            letter-spacing: 0.5px;
        }

        .category-hero .h1 .accent {
            color: var(--brand-green);
            text-shadow: 0 0 18px var(--brand-green-glow);
        }

        /* ===== 分类简介 ===== */
        .category-intro {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
        }

        .category-intro::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 214, 143, 0.5), transparent);
        }

        .category-intro p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 0;
        }

        .category-intro .brand-inline {
            color: var(--brand-green);
            font-weight: 600;
        }

        /* ===== 精选专题 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }

        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all 0.4s ease;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
            cursor: pointer;
        }

        .featured-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .featured-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

        .featured-card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 18, 38, 0.85) 0%, transparent 50%);
        }

        .featured-card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--brand-gold);
            color: #0A1628;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            letter-spacing: 1px;
        }

        .featured-card-body {
            padding: 24px 28px 28px;
        }

        .featured-card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 12px;
        }

        .featured-card-body p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .featured-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 专题列表主体 ===== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .post-list-item {
            display: grid;
            grid-template-columns: 0.45fr 1fr;
            gap: 28px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all 0.4s ease;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
            cursor: pointer;
        }

        .post-list-item:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .post-list-item.reversed {
            grid-template-columns: 1fr 0.45fr;
        }

        .post-list-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/10;
        }

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

        .post-list-item:hover .post-list-img img {
            transform: scale(1.03);
        }

        .post-list-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .post-list-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-green);
            background: rgba(0, 214, 143, 0.1);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            width: fit-content;
            border: 1px solid rgba(0, 214, 143, 0.3);
        }

        .post-list-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .post-list-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .post-list-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 16px;
        }

        /* ===== 本周热点横向滑动 ===== */
        .hot-scroll-wrapper {
            position: relative;
        }

        .hot-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .hot-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .hot-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.04);
            border-radius: 3px;
        }

        .hot-scroll::-webkit-scrollbar-thumb {
            background: rgba(0, 214, 143, 0.4);
            border-radius: 3px;
        }

        .hot-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.4s ease;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
            cursor: pointer;
        }

        .hot-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .hot-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

        .hot-card-body {
            padding: 18px 20px 20px;
        }

        .hot-card-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-card-body .hot-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 数据简报 ===== */
        .data-brief-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-brief-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: all 0.4s ease;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
        }

        .data-brief-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .data-brief-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-green);
            line-height: 1.2;
            margin-bottom: 6px;
            text-shadow: 0 0 20px rgba(0, 214, 143, 0.35);
        }

        .data-brief-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        /* ===== 专家观点 ===== */
        .expert-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .expert-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            position: relative;
            transition: all 0.4s ease;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
        }

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

        .expert-card::before {
            content: "\201C";
            position: absolute;
            top: 8px;
            left: 20px;
            font-size: 64px;
            font-weight: 700;
            color: rgba(0, 214, 143, 0.15);
            font-family: Georgia, serif;
            line-height: 1;
            pointer-events: none;
        }

        .expert-card blockquote {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .expert-card .expert-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .expert-card .expert-role {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-wrapper {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.35s ease;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }

        .faq-item:hover {
            border-color: rgba(0, 214, 143, 0.3);
        }

        .faq-item.open {
            border-color: var(--border-card-hover);
        }

        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            line-height: 1.5;
            transition: color 0.3s ease;
        }

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

        .faq-question .arrow {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-green);
            transition: transform 0.35s ease;
        }

        .faq-item.open .faq-question .arrow {
            transform: rotate(90deg);
        }

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

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 14px;
            margin: 0 12px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ===== 查看更多按钮 ===== */
        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.35s ease;
            letter-spacing: 0.3px;
        }

        .btn-more:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--brand-green);
            color: var(--brand-green);
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.3);
        }

        /* ===== Section 标题统一 ===== */
        .section-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .section-block {
            padding: 56px 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #050A12;
            border-top: 1px solid rgba(0, 214, 143, 0.15);
            padding: 56px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 280px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-body);
            transition: all 0.35s ease;
        }

        .footer-social a:hover {
            border-color: var(--brand-green);
            color: var(--brand-green);
            box-shadow: 0 0 16px rgba(0, 214, 143, 0.3);
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

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

        .footer-links li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-links li a:hover {
            color: var(--brand-green);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== 移动端响应式 ===== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 20px;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .expert-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

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

            .post-list-item,
            .post-list-item.reversed {
                grid-template-columns: 1fr;
                gap: 18px;
                padding: 18px;
            }

            .post-list-img {
                aspect-ratio: 16/9;
            }

            .data-brief-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .data-brief-number {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .hot-card {
                flex: 0 0 260px;
            }

            .section-block {
                padding: 40px 0;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .data-brief-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .category-hero .h1 {
                font-size: 24px;
            }

            .section-title {
                font-size: 20px;
            }

            .category-intro {
                padding: 20px;
            }

            .featured-card-body {
                padding: 18px 20px 20px;
            }
        }