/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-lighter: #60A5FA;
            --dark: #0F172A;
            --dark-secondary: #1E293B;
            --neon: #22D3EE;
            --neon-soft: #67E8F9;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --accent: #F59E0B;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -8px rgba(37, 99, 235, 0.12);
            --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 16px 40px -8px rgba(37, 99, 235, 0.22);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
        }

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

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            min-height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.35);
            border-bottom: 1px solid rgba(34, 211, 238, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 22px;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #0F172A;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.4);
        }

        .logo span {
            color: #22D3EE;
        }

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

        .nav-list a {
            display: block;
            padding: 8px 14px;
            color: #CBD5E1;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-list a::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--neon);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
            transition: var(--transition);
        }

        .nav-list a:hover {
            color: #FFFFFF;
        }

        .nav-list a:hover::after {
            width: 60%;
        }

        .nav-list a.active {
            color: #FFFFFF;
            font-weight: 600;
        }

        .nav-list a.active::after {
            width: 70%;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.9);
        }

        .nav-cta {
            background: #22D3EE;
            color: #0F172A;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.3px;
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        .nav-cta:hover {
            background: #67E8F9;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.25);
        }

        /* 移动端菜单 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .menu-toggle:hover {
            background: rgba(34, 211, 238, 0.1);
        }

        .menu-toggle span {
            width: 24px;
            height: 2px;
            background: #CBD5E1;
            border-radius: 2px;
            transition: var(--transition);
            display: block;
        }

        .menu-toggle:hover span {
            background: #FFFFFF;
        }

        /* ========== Hero 视频官网风格 ========== */
        .hero-video {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 40%, #2563EB 100%);
            overflow: hidden;
            padding: 80px 0;
        }

        .hero-video::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            pointer-events: none;
        }

        .hero-video::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.45) 0%, rgba(15, 23, 42, 0.75) 100%);
            pointer-events: none;
        }

        .hero-video .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 60px;
            flex-wrap: wrap;
        }

        .hero-video-text {
            flex: 1 1 50%;
            min-width: 300px;
        }

        .hero-video-text .tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.15);
            border: 1px solid rgba(34, 211, 238, 0.4);
            color: #22D3EE;
            padding: 6px 16px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-video-text h1 {
            font-size: 42px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-video-text h1 span {
            color: #22D3EE;
        }

        .hero-video-text p {
            font-size: 18px;
            color: #E2E8F0;
            line-height: 1.8;
            margin-bottom: 30px;
            max-width: 540px;
        }

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

        .btn-primary-hero {
            background: #22D3EE;
            color: #0F172A;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            letter-spacing: 0.3px;
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.35);
        }

        .btn-primary-hero:hover {
            background: #67E8F9;
            box-shadow: 0 0 24px rgba(34, 211, 238, 0.55);
            transform: translateY(-2px);
        }

        .btn-outline-hero {
            background: transparent;
            border: 2px solid #FFFFFF;
            color: #FFFFFF;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-outline-hero:hover {
            background: #FFFFFF;
            color: #0F172A;
            transform: translateY(-2px);
        }

        .hero-video-visual {
            flex: 1 1 35%;
            min-width: 280px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .video-play-btn {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.12);
            border: 2px solid rgba(255, 255, 255, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
            color: #FFFFFF;
            transition: var(--transition);
            cursor: pointer;
            backdrop-filter: blur(4px);
            box-shadow: 0 0 30px rgba(34, 211, 238, 0.3);
        }

        .video-play-btn:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: #22D3EE;
            color: #22D3EE;
            box-shadow: 0 0 50px rgba(34, 211, 238, 0.55);
            transform: scale(1.05);
        }

        .hero-stats-bar {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 30px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #CBD5E1;
            font-size: 14px;
        }

        .hero-stat-item .stat-num {
            font-size: 24px;
            font-weight: 800;
            color: #FFFFFF;
        }

        .hero-stat-item .stat-label {
            color: #94A3B8;
        }

        /* ========== 通用板块 ========== */
        section {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            section {
                padding: 48px 0;
            }
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 40px;
            max-width: 720px;
        }

        .section-header-center {
            text-align: center;
        }

        .section-header-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 秒杀商品轨/特色活动 ========== */
        .flash-track {
            background: #FFFFFF;
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 40px;
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }

        .flash-track-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .flash-track-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .flash-track-title .badge-hot {
            background: #F59E0B;
            color: #0F172A;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 700;
        }

        .flash-track-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .flash-item {
            background: #F8FAFC;
            border-radius: 14px;
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
            border: 1px solid #E2E8F0;
        }

        .flash-item:hover {
            border-color: #2563EB;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .flash-item img {
            width: 64px;
            height: 64px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .flash-item-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .flash-item-info p {
            font-size: 13px;
            color: var(--muted);
        }

        /* ========== 库存提示 ========== */
        .stock-alert {
            background: linear-gradient(135deg, #FFF7ED, #FFFBEB);
            border: 1px solid #FDE68A;
            border-radius: 16px;
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .stock-alert-text {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: #92400E;
            font-weight: 600;
        }

        .stock-alert-text .dot {
            width: 10px;
            height: 10px;
            background: #F59E0B;
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.3);
            }
        }

        .stock-alert-bar {
            width: 200px;
            height: 8px;
            background: #FDE68A;
            border-radius: 9999px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .stock-alert-bar-inner {
            height: 100%;
            background: #F59E0B;
            border-radius: 9999px;
            width: 42%;
            transition: width 0.5s ease;
        }

        /* ========== 服务区 1大2小 ========== */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .service-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: var(--transition);
            border: 1px solid #F1F5F9;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #3B82F6;
        }

        .service-card-lg {
            grid-row: span 2;
            padding: 36px;
        }

        .service-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: 20px;
        }

        .service-card-lg img {
            height: 260px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 10px;
        }

        .service-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 优势数据 ========== */
        .stats-section {
            background: linear-gradient(135deg, #F1F5F9 0%, #E8F0FE 100%);
            border-radius: 24px;
            padding: 50px 40px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: #1E3A5F;
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: #64748B;
            font-weight: 500;
        }

        /* ========== 方案/深度内容 ========== */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .deep-content-text h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 18px;
            line-height: 1.4;
        }

        .deep-content-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            text-align: justify;
            margin-bottom: 16px;
        }

        .deep-content-image {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
        }

        .deep-content-image img {
            width: 100%;
            height: 350px;
            object-fit: cover;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro {
            background: #FFFFFF;
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 50px 40px;
            border-left: 4px solid #22D3EE;
            position: relative;
        }

        .brand-intro::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.03) 0%, rgba(37, 99, 235, 0.05) 100%);
            border-radius: 20px;
            pointer-events: none;
        }

        .brand-intro h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .brand-intro p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            text-align: justify;
            position: relative;
            z-index: 1;
        }

        /* ========== 新闻中心 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 160px 1fr 120px;
            gap: 20px;
            align-items: center;
            padding: 22px 0;
            border-bottom: 1px solid #E2E8F0;
            transition: var(--transition);
            border-radius: 8px;
            padding-left: 16px;
            padding-right: 16px;
        }

        .news-item:hover {
            background: #F8FAFC;
            border-bottom-color: #3B82F6;
        }

        .news-date {
            font-size: 14px;
            color: #94A3B8;
            font-weight: 500;
            white-space: nowrap;
        }

        .news-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-content p {
            font-size: 14px;
            color: #64748B;
            line-height: 1.6;
        }

        .btn-read-more {
            background: transparent;
            border: 1.5px solid #2563EB;
            color: #2563EB;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 13px;
            white-space: nowrap;
            transition: var(--transition);
            text-align: center;
        }

        .btn-read-more:hover {
            background: #2563EB;
            color: #FFFFFF;
        }

        .btn-read-more:active {
            background: #1D4ED8;
            border-color: #1D4ED8;
        }

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

        .faq-item {
            background: #FFFFFF;
            border-radius: 14px;
            border: 1px solid #E2E8F0;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            border-left: 3px solid #22D3EE;
            background: #F8FAFC;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 15px;
            color: var(--text);
            transition: var(--transition);
            user-select: none;
            gap: 16px;
        }

        .faq-question:hover {
            background: #F1F5F9;
        }

        .faq-icon {
            font-size: 20px;
            color: #2563EB;
            transition: var(--transition);
            flex-shrink: 0;
            font-weight: 300;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: #22D3EE;
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
            padding-top: 4px;
        }

        /* ========== 抢购按钮组/CTA ========== */
        .cta-final {
            background: #0F172A;
            border-radius: 24px;
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-final::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-final h2 {
            font-size: 32px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-final p {
            font-size: 16px;
            color: #CBD5E1;
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }

        .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-cta-neon {
            background: #22D3EE;
            color: #0F172A;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
        }

        .btn-cta-neon:hover {
            background: #67E8F9;
            box-shadow: 0 0 30px rgba(34, 211, 238, 0.6);
            transform: translateY(-2px);
        }

        .btn-cta-outline {
            background: transparent;
            border: 2px solid #FFFFFF;
            color: #FFFFFF;
            padding: 12px 30px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }

        .btn-cta-outline:hover {
            background: #FFFFFF;
            color: #0F172A;
            transform: translateY(-2px);
        }

        /* ========== 底部 ========== */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 40px 0;
            border-top: 1px solid rgba(34, 211, 238, 0.1);
        }

        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 20px;
            color: #FFFFFF;
        }

        .footer-brand span {
            color: #22D3EE;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
        }

        .footer-links a {
            color: #94A3B8;
            transition: var(--transition);
            position: relative;
        }

        .footer-links a:hover {
            color: #FFFFFF;
        }

        .footer-links a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1.5px;
            background: #22D3EE;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-video-text h1 {
                font-size: 36px;
            }
            .services-grid {
                gap: 16px;
            }
            .service-card {
                padding: 20px;
            }
            .deep-content {
                gap: 30px;
            }
            .stats-grid {
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
            .nav-list a {
                padding: 8px 10px;
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-list {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: #0F172A;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                gap: 8px;
                display: none;
                border-bottom: 2px solid rgba(34, 211, 238, 0.3);
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                border-left: 3px solid transparent;
                font-size: 15px;
            }
            .nav-list a.active {
                border-left-color: #22D3EE;
                background: rgba(34, 211, 238, 0.08);
            }
            .nav-list a::after {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .hero-video {
                min-height: auto;
                padding: 60px 0;
            }
            .hero-video .container {
                flex-direction: column;
                text-align: center;
                gap: 40px;
            }
            .hero-video-text h1 {
                font-size: 30px;
            }
            .hero-video-text p {
                font-size: 16px;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-btns {
                justify-content: center;
            }
            .hero-stats-bar {
                justify-content: center;
                gap: 20px;
            }
            .hero-stat-item {
                flex-direction: column;
                gap: 2px;
            }
            .hero-stat-item .stat-num {
                font-size: 20px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .service-card-lg {
                grid-row: auto;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .deep-content {
                grid-template-columns: 1fr;
            }
            .deep-content-image img {
                height: 240px;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 16px;
            }
            .news-item .btn-read-more {
                justify-self: start;
            }
            .flash-track {
                padding: 24px;
                margin-top: -24px;
            }
            .stock-alert {
                flex-direction: column;
                text-align: center;
            }
            .cta-final {
                padding: 40px 20px;
            }
            .cta-final h2 {
                font-size: 26px;
            }
            .brand-intro {
                padding: 30px 20px;
            }
            .section-title {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .hero-video-text h1 {
                font-size: 26px;
            }
            .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-hero,
            .btn-outline-hero {
                width: 100%;
                text-align: center;
            }
            .stats-grid {
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 26px;
            }
            .flash-track-list {
                grid-template-columns: 1fr;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

        /* 焦点可访问性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid #22D3EE;
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-lighter: #60A5FA;
            --dark: #0F172A;
            --dark-secondary: #1E293B;
            --neon: #22D3EE;
            --neon-soft: #67E8F9;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --accent: #F59E0B;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -8px rgba(37, 99, 235, 0.12);
            --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 16px 40px -8px rgba(37, 99, 235, 0.22);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
        }

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

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            min-height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.35);
            border-bottom: 1px solid rgba(34, 211, 238, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 22px;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #0F172A;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.4);
        }

        .logo span {
            color: #22D3EE;
        }

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

        .nav-list a {
            display: block;
            padding: 8px 14px;
            color: #CBD5E1;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-list a::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--neon);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
            transition: var(--transition);
        }

        .nav-list a:hover {
            color: #FFFFFF;
        }

        .nav-list a:hover::after {
            width: 60%;
        }

        .nav-list a.active {
            color: #FFFFFF;
            font-weight: 600;
        }

        .nav-list a.active::after {
            width: 70%;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.9);
        }

        .nav-cta {
            background: #22D3EE;
            color: #0F172A;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.3px;
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        .nav-cta:hover {
            background: #67E8F9;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.25);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--neon);
            outline-offset: 2px;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
            flex-shrink: 0;
            background: transparent;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #CBD5E1;
            border-radius: 9999px;
            transition: var(--transition);
        }

        .menu-toggle:hover span {
            background: #FFFFFF;
        }

        .menu-toggle:focus-visible {
            outline: 2px solid var(--neon);
            outline-offset: 2px;
        }

        /* 移动端抽屉 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            z-index: 999;
            padding: 24px 16px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 18px;
            color: #CBD5E1;
            font-size: 16px;
            font-weight: 500;
            border-radius: 10px;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }

        .mobile-menu a:hover {
            color: #FFFFFF;
            background: rgba(34, 211, 238, 0.08);
        }

        .mobile-menu a.active {
            color: #FFFFFF;
            border-left-color: var(--neon);
            background: rgba(34, 211, 238, 0.12);
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.2);
            font-weight: 600;
        }

        .mobile-menu .nav-cta {
            margin-top: 12px;
            text-align: center;
            display: block;
        }

        @media (max-width: 1024px) {
            .nav-list {
                display: none;
            }
            .nav-cta.desktop-cta {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
        }

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

        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }

        .breadcrumb a:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }

        .breadcrumb .separator {
            color: var(--border);
            user-select: none;
        }

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

        /* ========== 分类页 Hero ========== */
        .page-hero {
            padding: 56px 0 48px;
            background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 40%, #F1F5F9 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .page-hero-content h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-hero-content h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .page-hero-content .subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 24px;
            max-width: 520px;
        }

        .page-hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, #2563EB, #1E40AF);
            color: #FFFFFF;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--transition);
            box-shadow: 0 4px 16px -4px rgba(37, 99, 235, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #3B82F6, #2563EB);
            box-shadow: 0 8px 24px -4px rgba(37, 99, 235, 0.5);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px -2px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.4);
            outline-offset: 2px;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--transition);
            border: 2px solid var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-outline:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.4);
            outline-offset: 2px;
        }

        .page-hero-image {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
        }

        .page-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
            min-height: 320px;
        }

        .page-hero-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.35) 0%, transparent 50%);
            border-radius: var(--radius-card);
            pointer-events: none;
        }

        .hero-stats-bar {
            display: flex;
            gap: 32px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 40px 0 32px;
            }
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero-content h1 {
                font-size: 28px;
            }
            .page-hero-content .subtitle {
                font-size: 15px;
            }
            .page-hero-image img {
                min-height: 220px;
            }
            .hero-stats-bar {
                gap: 20px;
                margin-top: 24px;
                padding-top: 20px;
            }
            .hero-stat .stat-number {
                font-size: 22px;
            }
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 64px 0;
        }

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

        .section-header h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            border: 1px solid rgba(37, 99, 235, 0.2);
        }

        @media (max-width: 640px) {
            .section {
                padding: 40px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-header h2 {
                font-size: 24px;
            }
        }

        /* ========== 卖点区块 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(37, 99, 235, 0.2);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
            color: var(--primary);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card {
                padding: 20px;
                gap: 14px;
            }
            .feature-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }
        }

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

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

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

        .scenario-card .card-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .scenario-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }

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

        .scenario-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .scenario-card .card-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: rgba(34, 211, 238, 0.1);
            color: #0891B2;
            border: 1px solid rgba(34, 211, 238, 0.3);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .scenario-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        @media (max-width: 1024px) {
            .scenarios-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .scenario-card .card-image {
                height: 180px;
            }
        }

        /* ========== 流程区块 ========== */
        .process-section {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            padding: 64px 0;
        }

        .process-section .section-header h2 {
            color: #FFFFFF;
        }

        .process-section .section-header p {
            color: #CBD5E1;
        }

        .process-section .section-tag {
            background: rgba(34, 211, 238, 0.12);
            color: var(--neon);
            border-color: rgba(34, 211, 238, 0.3);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .process-step {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
            position: relative;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-3px);
        }

        .process-step .step-number {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #0F172A;
            margin-bottom: 14px;
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.4);
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .process-step p {
            font-size: 14px;
            color: #CBD5E1;
            line-height: 1.65;
        }

        @media (max-width: 1024px) {
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 640px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
            .process-section {
                padding: 40px 0;
            }
        }

        /* ========== 深度内容区块 ========== */
        .deep-content {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 40px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .deep-content h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            margin-top: 24px;
            line-height: 1.4;
        }

        .deep-content h3:first-child {
            margin-top: 0;
        }

        .deep-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
            text-indent: 2em;
        }

        .deep-content p:last-child {
            margin-bottom: 0;
        }

        .deep-content .highlight-box {
            background: #EFF6FF;
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .deep-content .highlight-box strong {
            color: var(--primary);
        }

        .deep-content-image {
            margin: 24px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .deep-content-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-card);
        }

        @media (max-width: 640px) {
            .deep-content {
                padding: 24px 20px;
            }
            .deep-content p {
                font-size: 15px;
                text-indent: 0;
            }
            .deep-content h3 {
                font-size: 19px;
            }
            .deep-content .highlight-box {
                padding: 16px 18px;
                font-size: 14px;
            }
        }

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

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.2);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            text-align: left;
            transition: var(--transition);
            background: transparent;
        }

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

        .faq-question:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.3);
            outline-offset: -3px;
            border-radius: 12px;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: #EFF6FF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
            border-top: none;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
            border-top: 1px solid var(--border-light);
        }

        .faq-item.active {
            background: #F8FAFC;
            border-left: 3px solid var(--neon);
            box-shadow: 0 2px 4px rgba(15, 23, 42, 0.04), 0 12px 32px -8px rgba(37, 99, 235, 0.16);
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            padding-top: 16px;
        }

        @media (max-width: 640px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #2563EB 0%, #1E40AF 50%, #1E3A5F 100%);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: -20px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-size: 30px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .cta-content p {
            font-size: 16px;
            color: #DBEAFE;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            background: #22D3EE;
            color: #0F172A;
            padding: 15px 36px;
            border-radius: var(--radius-btn);
            font-weight: 800;
            font-size: 16px;
            letter-spacing: 0.5px;
            transition: var(--transition);
            box-shadow: 0 4px 20px -4px rgba(34, 211, 238, 0.5);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-cta:hover {
            background: #67E8F9;
            box-shadow: 0 8px 32px -4px rgba(34, 211, 238, 0.7);
            transform: translateY(-2px);
        }

        .btn-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px -2px rgba(34, 211, 238, 0.4);
        }

        .btn-cta:focus-visible {
            outline: 3px solid rgba(34, 211, 238, 0.5);
            outline-offset: 3px;
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 40px 0;
            }
            .cta-content h2 {
                font-size: 24px;
            }
            .cta-content p {
                font-size: 15px;
            }
            .btn-cta {
                padding: 13px 28px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            padding: 48px 0 32px;
            color: #94A3B8;
        }

        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }

        .footer-brand span {
            color: #22D3EE;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-links a {
            color: #94A3B8;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .footer-links a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--neon);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #FFFFFF;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 13px;
            color: #64748B;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: #FFFFFF;
        }

        @media (max-width: 640px) {
            .site-footer {
                padding: 32px 0 24px;
            }
            .footer-links {
                gap: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

        /* ========== 焦点可见性 ========== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-lighter: #60A5FA;
            --dark: #0F172A;
            --dark-secondary: #1E293B;
            --neon: #22D3EE;
            --neon-soft: #67E8F9;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --accent: #F59E0B;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -8px rgba(37, 99, 235, 0.12);
            --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 16px 40px -8px rgba(37, 99, 235, 0.22);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
        }

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            min-height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.35);
            border-bottom: 1px solid rgba(34, 211, 238, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 22px;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #0F172A;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.4);
        }

        .logo span {
            color: #22D3EE;
        }

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

        .nav-list a {
            display: block;
            padding: 8px 14px;
            color: #CBD5E1;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-list a::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--neon);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
            transition: var(--transition);
        }

        .nav-list a:hover {
            color: #FFFFFF;
        }

        .nav-list a:hover::after {
            width: 60%;
        }

        .nav-list a.active {
            color: #FFFFFF;
            font-weight: 600;
        }

        .nav-list a.active::after {
            width: 70%;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.9);
        }

        .nav-cta {
            background: #22D3EE;
            color: #0F172A;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.3px;
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        .nav-cta:hover {
            background: #67E8F9;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.25);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #CBD5E1;
            border-radius: 2px;
            transition: var(--transition);
        }

        .menu-toggle:hover span {
            background: #22D3EE;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }

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

        .breadcrumb .separator {
            color: var(--muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== Hero ========== */
        .page-hero {
            background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 50%, #E0F2FE 100%);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #FFFFFF;
            border: 1px solid #BFDBFE;
            border-radius: 9999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
            box-shadow: 0 1px 3px rgba(37, 99, 235, 0.08);
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--neon);
            border-radius: 50%;
            box-shadow: 0 0 6px rgba(34, 211, 238, 0.6);
        }

        .page-hero h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-hero h1 .accent {
            color: var(--primary);
        }

        .page-hero .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
        }

        .btn-primary:hover {
            background: #1D4ED8;
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #FFFFFF;
            border: 1.5px solid var(--primary-light);
            color: var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: #EFF6FF;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid #DBEAFE;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-item .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

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

        /* ========== 头条精选 ========== */
        .featured-section {
            padding: 56px 0 20px;
        }

        .featured-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }

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

        .featured-image {
            position: relative;
            min-height: 320px;
            background: #0F172A;
            overflow: hidden;
        }

        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .featured-image .tag-overlay {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(37, 99, 235, 0.92);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.3px;
        }

        .featured-content {
            padding: 40px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-content .meta-row {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 12px;
        }

        .featured-content h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .featured-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .btn-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            border: 1.5px solid var(--primary-light);
            color: var(--primary);
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            align-self: flex-start;
        }

        .btn-sm:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
            transform: translateY(-1px);
        }

        /* ========== 资讯列表 ========== */
        .news-list-section {
            padding: 32px 0 40px;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-header h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-header h2::before {
            content: "";
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 9999px;
        }

        .section-header .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: #FFFFFF;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }

        .filter-tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .filter-tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
            font-weight: 600;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-list-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            display: grid;
            grid-template-columns: 200px 1fr;
            overflow: hidden;
            transition: var(--transition);
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(37, 99, 235, 0.2);
        }

        .news-thumb {
            position: relative;
            min-height: 140px;
            background: #F1F5F9;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .news-thumb .cat-badge {
            position: absolute;
            bottom: 10px;
            left: 10px;
            background: rgba(15, 23, 42, 0.8);
            color: #FFFFFF;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }

        .news-body {
            padding: 18px 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .news-body .meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .news-body .meta .date {
            font-weight: 500;
        }

        .news-body .meta .tag {
            background: #EFF6FF;
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 4px;
        }

        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
        }

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

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

        .news-body .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
            align-self: flex-start;
        }

        .news-body .read-more:hover {
            color: #1D4ED8;
            gap: 8px;
        }

        /* ========== 分页 ========== */
        .pagination-section {
            padding: 16px 0 40px;
        }

        .pagination {
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            background: #FFFFFF;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }

        .page-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.12);
        }

        .page-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 2px 12px rgba(37, 99, 235, 0.35);
        }

        .page-btn.disabled {
            opacity: 0.45;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* ========== 数据优势区 ========== */
        .stats-section {
            padding: 40px 0 48px;
            background: #F1F5F9;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-block {
            text-align: center;
            padding: 24px 16px;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .stat-block:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .stat-block .big-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .stat-block .stat-label {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            margin-top: 6px;
        }

        /* ========== 深度内容区 ========== */
        .deep-section {
            padding: 56px 0;
        }

        .deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .deep-text h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .deep-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 18px;
            text-indent: 2em;
        }

        .deep-text p:last-child {
            margin-bottom: 0;
        }

        .deep-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .deep-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 48px 0 56px;
            background: #FFFFFF;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            background: #F8FAFC;
            border-radius: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.open {
            background: #F0F7FF;
            border-left: 3px solid var(--neon);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-icon {
            font-size: 22px;
            font-weight: 400;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            background: #EFF6FF;
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 22px 20px 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 56px 0;
            background: #0F172A;
        }

        .cta-box {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            line-height: 1.4;
        }

        .cta-box p {
            font-size: 16px;
            color: #CBD5E1;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #22D3EE;
            color: #0F172A;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            font-weight: 800;
            font-size: 16px;
            letter-spacing: 0.5px;
            transition: var(--transition);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
        }

        .cta-btn:hover {
            background: #67E8F9;
            box-shadow: 0 0 30px rgba(34, 211, 238, 0.6);
            transform: translateY(-2px);
        }

        .cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.3);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            padding: 44px 0 28px;
            color: #94A3B8;
            border-top: 1px solid rgba(34, 211, 238, 0.1);
        }

        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }

        .footer-brand span {
            color: #22D3EE;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #94A3B8;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #FFFFFF;
            text-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
        }

        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding-top: 20px;
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            font-size: 13px;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: #FFFFFF;
            text-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-image {
                min-height: 240px;
            }
            .featured-content {
                padding: 28px 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .deep-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                flex-wrap: wrap;
                padding-top: 8px;
                padding-bottom: 8px;
            }

            .nav-list {
                order: 3;
                flex-basis: 100%;
                justify-content: flex-start;
                gap: 0;
                overflow-x: auto;
                padding: 8px 0 4px;
                -webkit-overflow-scrolling: touch;
            }

            .nav-list a {
                padding: 8px 12px;
                font-size: 14px;
                white-space: nowrap;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .menu-toggle {
                display: flex;
            }

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

            .hero-sub {
                font-size: 15px;
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stat-item .stat-num {
                font-size: 24px;
            }

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

            .news-thumb {
                min-height: 180px;
            }

            .news-body {
                padding: 14px 16px;
            }

            .news-body h3 {
                font-size: 16px;
            }

            .featured-content h2 {
                font-size: 22px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .stat-block .big-num {
                font-size: 30px;
            }

            .deep-text h2 {
                font-size: 22px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .faq-question {
                font-size: 15px;
                padding: 15px 16px;
            }

            .faq-answer {
                padding: 0 16px 16px 16px;
                font-size: 14px;
            }

            .pagination {
                gap: 6px;
            }

            .page-btn {
                min-width: 36px;
                height: 36px;
                padding: 0 10px;
                font-size: 13px;
            }

            .breadcrumb {
                font-size: 13px;
            }

            .section-header h2 {
                font-size: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .page-hero {
                padding: 36px 0 32px;
            }

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

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary,
            .btn-outline {
                justify-content: center;
                padding: 12px 20px;
                font-size: 14px;
            }

            .hero-stats {
                gap: 16px;
                margin-top: 24px;
                padding-top: 20px;
            }

            .hero-stat-item .stat-num {
                font-size: 22px;
            }

            .featured-content {
                padding: 20px 16px;
            }

            .featured-content h2 {
                font-size: 20px;
            }

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

            .stat-block {
                padding: 16px 12px;
            }

            .stat-block .big-num {
                font-size: 26px;
            }

            .deep-section {
                padding: 36px 0;
            }

            .deep-text h2 {
                font-size: 20px;
            }

            .deep-text p {
                font-size: 14px;
                line-height: 1.8;
            }

            .faq-section {
                padding: 36px 0 40px;
            }

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

            .cta-box h2 {
                font-size: 22px;
            }

            .cta-btn {
                padding: 12px 24px;
                font-size: 14px;
            }

            .footer-links {
                gap: 14px;
                font-size: 13px;
            }

            .footer-bottom {
                font-size: 12px;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-lighter: #60A5FA;
            --dark: #0F172A;
            --dark-secondary: #1E293B;
            --neon: #22D3EE;
            --neon-soft: #67E8F9;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --accent: #F59E0B;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -8px rgba(37, 99, 235, 0.12);
            --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 16px 40px -8px rgba(37, 99, 235, 0.22);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            min-height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.35);
            border-bottom: 1px solid rgba(34, 211, 238, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 22px;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #0F172A;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.4);
        }

        .logo span {
            color: #22D3EE;
        }

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

        .nav-list a {
            display: block;
            padding: 8px 14px;
            color: #CBD5E1;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-list a::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--neon);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
            transition: var(--transition);
        }

        .nav-list a:hover {
            color: #FFFFFF;
        }

        .nav-list a:hover::after {
            width: 60%;
        }

        .nav-list a.active {
            color: #FFFFFF;
            font-weight: 600;
        }

        .nav-list a.active::after {
            width: 70%;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.9);
        }

        .nav-cta {
            background: #22D3EE;
            color: #0F172A;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.3px;
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        .nav-cta:hover {
            background: #67E8F9;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.25);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
            flex-shrink: 0;
            background: transparent;
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #CBD5E1;
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 16px 0 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }

        .breadcrumb .separator {
            color: var(--muted);
            user-select: none;
        }

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

        /* ========== Hero创作者主页风格 ========== */
        .hero-creator {
            position: relative;
            background: linear-gradient(135deg, #F1F5F9 0%, #E0E7FF 35%, #DBEAFE 70%, #F1F5F9 100%);
            padding: 36px 0 48px;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .hero-creator::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #22D3EE, #2563EB, #22D3EE);
        }

        .hero-creator .container {
            position: relative;
            z-index: 1;
        }

        .hero-creator-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

        .creator-profile {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: center;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            position: relative;
            z-index: 1;
        }

        .creator-avatar {
            width: 96px;
            height: 96px;
            border-radius: 24px;
            background: linear-gradient(135deg, #22D3EE, #2563EB, #1E3A5F);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            font-weight: 900;
            color: #FFFFFF;
            box-shadow: 0 8px 30px rgba(34, 211, 238, 0.35);
            flex-shrink: 0;
            border: 3px solid #FFFFFF;
            outline: 3px solid rgba(34, 211, 238, 0.3);
        }

        .creator-info {
            flex: 1;
            min-width: 220px;
        }

        .creator-info .verified {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 9999px;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .creator-info h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .creator-info h1 .highlight {
            color: var(--primary);
        }

        .creator-info .bio {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
            max-width: 520px;
        }

        .creator-stats {
            display: flex;
            gap: 28px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .creator-stat {
            text-align: center;
            padding: 4px 8px;
        }

        .creator-stat .number {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .creator-stat .label {
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
            margin-top: 2px;
            letter-spacing: 0.3px;
        }

        .creator-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-follow {
            background: linear-gradient(135deg, #2563EB, #0EA5E9);
            color: #FFFFFF;
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            letter-spacing: 0.3px;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
            white-space: nowrap;
        }

        .btn-follow:hover {
            background: linear-gradient(135deg, #1D4ED8, #0284C7);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.45);
            transform: translateY(-2px);
        }

        .btn-follow:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(37, 99, 235, 0.25);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid var(--primary);
            transition: var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: #F1F5F9;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 9999px;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.35;
            letter-spacing: 0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
            max-width: 720px;
        }

        /* ========== 卖点卡片 ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px 30px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(37, 99, 235, 0.15);
        }

        .feature-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(37, 99, 235, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 24px;
            color: var(--primary);
            border: 1px solid rgba(37, 99, 235, 0.15);
        }

        .feature-card .content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .feature-card .content p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.75;
        }

        .feature-card.feature-large {
            grid-column: span 2;
            padding: 36px 40px;
            background: linear-gradient(135deg, #FFFFFF 0%, #F1F5F9 100%);
            border: 1px solid rgba(37, 99, 235, 0.12);
        }

        .feature-card.feature-large .icon-wrap {
            width: 64px;
            height: 64px;
            font-size: 30px;
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(37, 99, 235, 0.2));
        }

        .feature-card.feature-large .content h3 {
            font-size: 22px;
        }

        .feature-card.feature-large .content p {
            font-size: 16px;
        }

        /* ========== 适用场景 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scene-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: default;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(37, 99, 235, 0.2);
        }

        .scene-card .scene-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 0;
        }

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

        .scene-card .scene-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .scene-card .scene-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 流程区域 ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }

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

        .process-step .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: 0 4px 14px rgba(34, 211, 238, 0.3);
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 深度内容区 ========== */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .deep-content .text-block h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 16px;
            line-height: 1.4;
        }

        .deep-content .text-block h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin: 24px 0 10px;
            line-height: 1.4;
        }

        .deep-content .text-block p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 14px;
            line-height: 1.85;
            text-indent: 2em;
        }

        .deep-content .text-block p:first-of-type {
            text-indent: 0;
        }

        .deep-content .image-block {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .deep-content .image-block img {
            width: 100%;
            height: 100%;
            min-height: 320px;
            object-fit: cover;
            border-radius: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            border-left: 3px solid var(--neon);
            background: #F8FAFC;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            text-align: left;
            transition: var(--transition);
            gap: 16px;
            background: transparent;
            border: none;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(37, 99, 235, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--neon);
            color: #0F172A;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 60%, #2563EB 100%);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.15);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 30px;
            font-weight: 800;
            color: #FFFFFF;
            margin: 0 0 14px;
            line-height: 1.4;
            letter-spacing: 0.5px;
        }

        .cta-content p {
            font-size: 16px;
            color: #CBD5E1;
            margin: 0 0 28px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-neon {
            background: #22D3EE;
            color: #0F172A;
            padding: 13px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            letter-spacing: 0.3px;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
            white-space: nowrap;
        }

        .btn-neon:hover {
            background: #67E8F9;
            box-shadow: 0 0 32px rgba(34, 211, 238, 0.6);
            transform: translateY(-2px);
        }

        .btn-neon:active {
            transform: translateY(0);
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.3);
        }

        .btn-dark-outline {
            background: transparent;
            color: #FFFFFF;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .btn-dark-outline:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }

        .btn-dark-outline:active {
            transform: translateY(0);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            padding: 40px 0;
            border-top: 1px solid rgba(34, 211, 238, 0.1);
        }

        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }

        .footer-brand span {
            color: #22D3EE;
        }

        .footer-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #CBD5E1;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .footer-links a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: #22D3EE;
            border-radius: 9999px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #FFFFFF;
        }

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

        .footer-bottom {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            align-items: center;
            font-size: 13px;
            color: #94A3B8;
            border-top: 1px solid rgba(148, 163, 184, 0.15);
            padding-top: 18px;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-content .image-block img {
                min-height: 240px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-card.feature-large {
                grid-column: span 1;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .creator-profile {
                padding: 24px 20px;
                gap: 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .creator-avatar {
                width: 72px;
                height: 72px;
                font-size: 30px;
                border-radius: 18px;
            }
            .creator-info h1 {
                font-size: 24px;
            }
            .creator-stats {
                gap: 20px;
                width: 100%;
                justify-content: flex-start;
            }
            .creator-stat .number {
                font-size: 22px;
            }
            .creator-actions {
                width: 100%;
            }
            .btn-follow,
            .btn-outline {
                flex: 1;
                text-align: center;
                padding: 10px 16px;
                font-size: 14px;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: linear-gradient(135deg, #0F172A, #1E293B);
                flex-direction: column;
                padding: 16px 20px;
                gap: 6px;
                border-bottom: 1px solid rgba(34, 211, 238, 0.2);
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.4);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 12px 16px;
                width: 100%;
                font-size: 15px;
            }
            .menu-toggle {
                display: flex;
            }
            .site-header .container {
                gap: 14px;
            }
            .nav-cta {
                display: none;
            }
            .feature-card {
                padding: 20px 18px;
                flex-direction: column;
                gap: 14px;
            }
            .feature-card.feature-large {
                padding: 24px 20px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scene-card .scene-img {
                height: 200px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cta-content h2 {
                font-size: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .breadcrumb {
                font-size: 13px;
                gap: 5px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 8px;
            }
            .section-title {
                font-size: 21px;
            }
            .section-desc {
                font-size: 14px;
            }
            .creator-profile {
                padding: 18px 16px;
                border-radius: 12px;
            }
            .creator-info h1 {
                font-size: 20px;
            }
            .creator-stat .number {
                font-size: 19px;
            }
            .creator-stat .label {
                font-size: 11px;
            }
            .feature-card .content h3 {
                font-size: 17px;
            }
            .deep-content .text-block h2 {
                font-size: 20px;
            }
            .deep-content .text-block h3 {
                font-size: 16px;
            }
            .faq-question {
                font-size: 15px;
                padding: 15px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }
            .cta-section {
                padding: 44px 0;
            }
            .cta-content h2 {
                font-size: 22px;
            }
            .btn-neon,
            .btn-dark-outline {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-lighter: #60A5FA;
            --dark: #0F172A;
            --dark-secondary: #1E293B;
            --neon: #22D3EE;
            --neon-soft: #67E8F9;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --accent: #F59E0B;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -8px rgba(37, 99, 235, 0.12);
            --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 16px 40px -8px rgba(37, 99, 235, 0.22);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            min-height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.35);
            border-bottom: 1px solid rgba(34, 211, 238, 0.15);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 22px;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #0F172A;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.4);
        }
        .logo span {
            color: #22D3EE;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
        }
        .nav-list li {
            list-style: none;
        }
        .nav-list a {
            display: block;
            padding: 8px 14px;
            color: #CBD5E1;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-list a::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--neon);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
            transition: var(--transition);
        }
        .nav-list a:hover {
            color: #FFFFFF;
        }
        .nav-list a:hover::after {
            width: 60%;
        }
        .nav-list a.active {
            color: #FFFFFF;
            font-weight: 600;
        }
        .nav-list a.active::after {
            width: 70%;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.9);
        }
        .nav-cta {
            background: #22D3EE;
            color: #0F172A;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.3px;
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }
        .nav-cta:hover {
            background: #67E8F9;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.25);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
            flex-shrink: 0;
            background: transparent;
            border: 1px solid rgba(148, 163, 184, 0.3);
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #CBD5E1;
            border-radius: 9999px;
            transition: var(--transition);
        }
        .menu-toggle:hover span {
            background: #FFFFFF;
        }

        @media (max-width: 1024px) {
            .nav-list {
                gap: 2px;
            }
            .nav-list a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .nav-cta {
                padding: 10px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-list {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                bottom: auto;
                background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 20px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.5);
                border-bottom: 1px solid rgba(34, 211, 238, 0.15);
                z-index: 999;
            }
            .nav-list.open {
                max-height: 420px;
                padding: 16px 20px;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-left: 3px solid transparent;
                border-radius: 0;
            }
            .nav-list a.active {
                border-left: 3px solid var(--neon);
                background: rgba(34, 211, 238, 0.08);
            }
            .nav-list a::after {
                display: none;
            }
            .nav-list a:hover {
                background: rgba(34, 211, 238, 0.06);
            }
            .nav-cta {
                padding: 10px 16px;
                font-size: 14px;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            flex-wrap: wrap;
            padding: 20px 0 8px;
        }
        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: var(--muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* ========== 分类页头 ========== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.06) 0%, rgba(34, 211, 238, 0.08) 50%, rgba(37, 99, 235, 0.04) 100%);
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 40px;
            border: 1px solid rgba(37, 99, 235, 0.1);
            min-height: 260px;
            display: flex;
            align-items: center;
        }
        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.1;
            pointer-events: none;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            padding: 40px 48px;
            max-width: 720px;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(34, 211, 238, 0.12);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: #0369A1;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 9999px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }
        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 24px;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(37, 99, 235, 0.15);
            padding-top: 20px;
        }
        .category-hero .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .category-hero .stat-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .category-hero .stat-label {
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .category-hero .hero-content {
                padding: 28px 24px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
            .category-hero .hero-stats {
                gap: 16px;
            }
            .category-hero .stat-num {
                font-size: 20px;
            }
        }

        /* ========== 品牌动态列表区 ========== */
        .brand-section {
            margin-bottom: 56px;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .section-header .section-title {
            font-size: 26px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.5px;
            position: relative;
            padding-left: 16px;
        }
        .section-header .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: linear-gradient(180deg, #22D3EE, #2563EB);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.4);
        }
        .section-header .section-sub {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
        }
        .brand-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .brand-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 20px;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .brand-item::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, #22D3EE, #2563EB);
            opacity: 0;
            transition: var(--transition);
            border-radius: 0 4px 4px 0;
        }
        .brand-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(37, 99, 235, 0.2);
        }
        .brand-item:hover::before {
            opacity: 1;
        }
        .brand-item .thumb {
            width: 140px;
            height: 100px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
            background: #E2E8F0;
        }
        .brand-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .brand-item:hover .thumb img {
            transform: scale(1.04);
        }
        .brand-item .item-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }
        .brand-item .item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--muted);
        }
        .brand-item .item-tag {
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: #0369A1;
            padding: 2px 10px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }
        .brand-item .item-date {
            white-space: nowrap;
        }
        .brand-item .item-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.4;
            letter-spacing: 0.2px;
            transition: var(--transition);
        }
        .brand-item:hover .item-title {
            color: var(--primary);
        }
        .brand-item .item-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .brand-item .item-action {
            align-self: flex-end;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(37, 99, 235, 0.3);
            transition: var(--transition);
            white-space: nowrap;
        }
        .brand-item .item-action:hover {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }
        @media (max-width: 768px) {
            .brand-item {
                flex-direction: column;
                padding: 16px;
                gap: 12px;
            }
            .brand-item .thumb {
                width: 100%;
                height: 180px;
            }
            .brand-item .item-action {
                align-self: flex-start;
            }
        }

        /* ========== 分页 ========== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            border: 1px solid var(--border);
            background: var(--card-bg);
            color: var(--text-secondary);
            cursor: pointer;
            user-select: none;
        }
        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
        }
        .pagination span.current {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
            cursor: default;
        }
        .pagination .ellipsis {
            border: none;
            background: transparent;
            cursor: default;
            color: var(--muted);
            min-width: auto;
            padding: 0 4px;
        }
        .pagination .prev-next {
            font-weight: 500;
        }
        .pagination .disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* ========== 品牌亮点区 ========== */
        .highlight-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 20px;
            margin-bottom: 56px;
        }
        .highlight-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
            position: relative;
            overflow: hidden;
        }
        .highlight-card.large {
            grid-row: span 2;
            padding: 32px 28px;
            background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 40%, #F0FDFA 100%);
            border-color: rgba(37, 99, 235, 0.15);
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .highlight-card .hl-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            flex-shrink: 0;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            border: 1px solid rgba(37, 99, 235, 0.15);
        }
        .highlight-card .hl-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
        }
        .highlight-card .hl-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }
        .highlight-card .hl-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .highlight-card .hl-link:hover {
            gap: 10px;
            color: var(--primary-light);
        }
        @media (max-width: 1024px) {
            .highlight-grid {
                grid-template-columns: 1fr 1fr;
            }
            .highlight-card.large {
                grid-column: 1 / -1;
                grid-row: auto;
            }
        }
        @media (max-width: 640px) {
            .highlight-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            margin-bottom: 56px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: 0 4px 20px rgba(34, 211, 238, 0.12);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            color: var(--dark);
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            background: rgba(37, 99, 235, 0.03);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(37, 99, 235, 0.08);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 3px solid transparent;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
            border-left-color: var(--neon);
            background: #F8FAFC;
            margin-left: 18px;
            border-radius: 0 0 0 8px;
        }

        /* ========== CTA ========== */
        .cta-banner {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            margin-bottom: 56px;
            border: 1px solid rgba(34, 211, 238, 0.2);
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 200%;
            background: radial-gradient(ellipse, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner .cta-content {
            position: relative;
            z-index: 2;
            flex: 1;
        }
        .cta-banner .cta-title {
            font-size: 24px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .cta-banner .cta-text {
            font-size: 15px;
            color: #CBD5E1;
            line-height: 1.8;
            max-width: 480px;
        }
        .cta-banner .cta-btn {
            background: #22D3EE;
            color: #0F172A;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.35);
            position: relative;
            z-index: 2;
        }
        .cta-banner .cta-btn:hover {
            background: #67E8F9;
            box-shadow: 0 0 30px rgba(34, 211, 238, 0.55);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 32px 24px;
            }
            .cta-banner .cta-text {
                max-width: 100%;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 40px 0 32px;
            border-top: 1px solid rgba(34, 211, 238, 0.15);
        }
        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 1px;
        }
        .footer-brand span {
            color: #22D3EE;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            font-size: 14px;
        }
        .footer-links a {
            color: #94A3B8;
            transition: var(--transition);
            position: relative;
        }
        .footer-links a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1px;
            background: #22D3EE;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #FFFFFF;
        }
        .footer-links a:hover::after {
            width: 100%;
        }
        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            font-size: 13px;
            color: #64748B;
            align-items: center;
            justify-content: space-between;
        }
        .footer-bottom a {
            color: #94A3B8;
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }
        .footer-bottom .beian-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-links {
                gap: 8px 16px;
            }
        }

        /* ========== 品牌里程碑时间线 ========== */
        .timeline-section {
            margin-bottom: 56px;
        }
        .timeline {
            position: relative;
            padding-left: 32px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: linear-gradient(180deg, #22D3EE, #2563EB, #22D3EE);
            opacity: 0.3;
            border-radius: 9999px;
        }
        .timeline-item {
            position: relative;
            padding-left: 20px;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -30px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #FFFFFF;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2), 0 0 12px rgba(34, 211, 238, 0.4);
        }
        .timeline-item .tl-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .timeline-item .tl-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin: 4px 0 6px;
        }
        .timeline-item .tl-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

/* roulang page: category5 */
:root {
            --primary: #2563EB;
            --primary-light: #3B82F6;
            --primary-lighter: #60A5FA;
            --dark: #0F172A;
            --dark-secondary: #1E293B;
            --neon: #22D3EE;
            --neon-soft: #67E8F9;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --muted: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --accent: #F59E0B;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -8px rgba(37, 99, 235, 0.12);
            --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 16px 40px -8px rgba(37, 99, 235, 0.22);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            min-height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 20px rgba(15, 23, 42, 0.35);
            border-bottom: 1px solid rgba(34, 211, 238, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 22px;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #0F172A;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.4);
        }

        .logo span {
            color: #22D3EE;
        }

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

        .nav-list a {
            display: block;
            padding: 8px 14px;
            color: #CBD5E1;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-list a::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--neon);
            border-radius: 9999px;
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
            transition: var(--transition);
        }

        .nav-list a:hover {
            color: #FFFFFF;
        }

        .nav-list a:hover::after {
            width: 60%;
        }

        .nav-list a.active {
            color: #FFFFFF;
            font-weight: 600;
        }

        .nav-list a.active::after {
            width: 70%;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.9);
        }

        .nav-cta {
            background: #22D3EE;
            color: #0F172A;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.3px;
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        .nav-cta:hover {
            background: #67E8F9;
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.25);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
            flex-shrink: 0;
            background: transparent;
            border: 1px solid rgba(34, 211, 238, 0.2);
        }

        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: #CBD5E1;
            border-radius: 2px;
            transition: var(--transition);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
            background: #22D3EE;
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
            background: #22D3EE;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            padding: 20px 0 0 0;
            font-size: 14px;
            color: var(--muted);
        }

        .breadcrumb a {
            color: var(--primary);
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }

        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--muted);
        }

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

        /* ========== Hero 分类页头 ========== */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0 70px;
            margin-bottom: 0;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.82) 50%, rgba(37, 99, 235, 0.55) 100%);
            z-index: 1;
        }

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

        .category-hero-content {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 750px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(34, 211, 238, 0.15);
            border: 1px solid rgba(34, 211, 238, 0.35);
            color: #67E8F9;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 9999px;
            width: fit-content;
            letter-spacing: 0.5px;
        }

        .category-hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin: 0;
        }

        .category-hero h1 .highlight {
            color: #22D3EE;
            text-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
        }

        .category-hero p {
            font-size: 18px;
            color: #CBD5E1;
            line-height: 1.8;
            max-width: 680px;
            margin: 0;
        }

        .category-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .btn-primary {
            background: #22D3EE;
            color: #0F172A;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            letter-spacing: 0.3px;
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            background: #67E8F9;
            box-shadow: 0 0 24px rgba(34, 211, 238, 0.55);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            letter-spacing: 0.3px;
            border: 2px solid rgba(34, 211, 238, 0.5);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary:hover {
            border-color: #22D3EE;
            background: rgba(34, 211, 238, 0.1);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .category-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .category-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .category-stat .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.2;
        }

        .category-stat .stat-label {
            font-size: 13px;
            color: #94A3B8;
            letter-spacing: 0.5px;
        }

        /* ========== 通用区块 ========== */
        .section {
            padding: 64px 0;
        }

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

        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 650px;
            margin: 0;
        }

        /* ========== 特色卖点 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 0.9fr;
            gap: 24px;
            margin-top: 32px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #22D3EE, #2563EB);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(37, 99, 235, 0.15);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, #F0F9FF, #E0F2FE);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            flex-shrink: 0;
            color: var(--primary);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        .feature-card.feature-large {
            grid-row: span 1;
        }

        .feature-card .feature-image {
            margin-top: 16px;
            border-radius: 12px;
            overflow: hidden;
            height: 150px;
        }

        .feature-card .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
            transition: var(--transition);
        }

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

        /* ========== 社区列表 ========== */
        .community-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .community-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: flex-start;
        }

        .community-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .community-item:hover {
            background: #F8FAFC;
            padding-left: 8px;
            padding-right: 8px;
            border-radius: 8px;
        }

        .community-thumb {
            flex-shrink: 0;
            width: 160px;
            height: 105px;
            border-radius: 10px;
            overflow: hidden;
        }

        .community-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 10px;
            transition: var(--transition);
        }

        .community-item:hover .community-thumb img {
            transform: scale(1.05);
        }

        .community-body {
            flex: 1;
            min-width: 0;
        }

        .community-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .community-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 9999px;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .community-tag.tag-topic {
            background: #EFF6FF;
            color: #2563EB;
        }

        .community-tag.tag-announcement {
            background: #FEF3C7;
            color: #D97706;
        }

        .community-tag.tag-activity {
            background: #ECFDF5;
            color: #059669;
        }

        .community-tag.tag-experience {
            background: #FDF2F8;
            color: #DB2777;
        }

        .community-tag.tag-qa {
            background: #F0FDFA;
            color: #0D9488;
        }

        .community-date {
            font-size: 13px;
            color: var(--muted);
            white-space: nowrap;
        }

        .community-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
            transition: var(--transition);
        }

        .community-item:hover h3 {
            color: var(--primary);
        }

        .community-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 10px 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .community-read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
            padding: 0;
            border: none;
            background: none;
        }

        .community-read-more:hover {
            color: var(--primary-light);
            gap: 8px;
        }

        .community-read-more:focus-visible {
            outline: 2px solid var(--neon);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ========== 分页 ========== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            border: 1px solid var(--border);
            background: var(--card-bg);
        }

        .pagination a:hover,
        .pagination button:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
        }

        .pagination .active-page {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 0 12px rgba(37, 99, 235, 0.3);
        }

        .pagination .active-page:hover {
            background: var(--primary-light);
            color: #FFFFFF;
            border-color: var(--primary-light);
        }

        .pagination .disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== 流程 ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .process-step {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

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

        .process-step .step-number {
            width: 40px;
            height: 40px;
            border-radius: 9999px;
            background: linear-gradient(135deg, #22D3EE, #2563EB);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.3);
        }

        .process-step h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 32px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.12);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            font-family: inherit;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
        }

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

        .faq-question:focus-visible {
            outline: 2px solid var(--neon);
            outline-offset: -2px;
            border-radius: 12px;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 20px;
            border-left: 3px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 20px;
            border-left-color: #22D3EE;
        }

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

        /* ========== CTA ========== */
        .cta-banner {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 60%, #1E3A5F 100%);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-banner .container {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 18px;
        }

        .cta-banner h2 {
            font-size: 30px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.4;
            margin: 0;
            letter-spacing: 0.3px;
        }

        .cta-banner h2 .highlight {
            color: #22D3EE;
        }

        .cta-banner p {
            font-size: 16px;
            color: #CBD5E1;
            line-height: 1.8;
            max-width: 600px;
            margin: 0;
        }

        .cta-banner .btn-primary {
            font-size: 16px;
            padding: 14px 36px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 48px 0 32px;
            border-top: 1px solid rgba(34, 211, 238, 0.1);
        }

        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }

        .footer-brand span {
            color: #22D3EE;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #94A3B8;
            font-size: 14px;
            transition: var(--transition);
            position: relative;
        }

        .footer-links a::after {
            content: "";
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 0;
            height: 1px;
            background: #22D3EE;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #FFFFFF;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            font-size: 13px;
            color: #94A3B8;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            align-items: center;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: #FFFFFF;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .nav-list {
                gap: 2px;
            }
            .nav-list a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .category-hero h1 {
                font-size: 36px;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .feature-card.feature-large {
                grid-column: span 2;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                min-height: 60px;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(34, 211, 238, 0.2);
                box-shadow: 0 20px 30px rgba(15, 23, 42, 0.5);
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 8px;
            }
            .nav-list a.active::after,
            .nav-list a:hover::after {
                display: none;
            }
            .nav-list a.active {
                background: rgba(34, 211, 238, 0.1);
                border-left: 3px solid #22D3EE;
                box-shadow: 0 0 12px rgba(34, 211, 238, 0.2);
            }
            .menu-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 8px;
            }
            .category-hero {
                padding: 48px 0 44px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero p {
                font-size: 15px;
            }
            .category-stats {
                gap: 20px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card.feature-large {
                grid-column: span 1;
            }
            .feature-card {
                padding: 20px;
            }
            .community-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px 0;
            }
            .community-thumb {
                width: 100%;
                height: 180px;
            }
            .community-item:hover {
                padding-left: 4px;
                padding-right: 4px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .cta-banner h2 {
                font-size: 24px;
            }
            .cta-banner p {
                font-size: 14px;
            }
            .pagination a,
            .pagination button {
                min-width: 36px;
                height: 36px;
                padding: 0 10px;
                font-size: 13px;
            }
            .footer-links {
                gap: 12px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .category-hero p {
                font-size: 14px;
            }
            .category-stat .stat-num {
                font-size: 24px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .category-hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .section-title {
                font-size: 21px;
            }
            .community-item h3 {
                font-size: 15px;
            }
            .community-item p {
                font-size: 13px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer p {
                font-size: 13px;
            }
            .footer-brand {
                font-size: 18px;
            }
        }

        @media (min-width: 769px) {
            .nav-list {
                display: flex !important;
            }
        }