/* roulang page: index */
:root {
            --brand-primary: #00DC82;
            --brand-primary-hover: #00ba6e;
            --brand-secondary: #6366F1;
            --brand-secondary-hover: #4f46e5;
            --accent-glow: rgba(0, 220, 130, 0.25);
            --bg-base: #F8FAFC;
            --bg-surface: #FFFFFF;
            --bg-card: #FFFFFF;
            --bg-dark: #0F172A;
            --bg-dark-card: #1E293B;
            --text-main: #0F172A;
            --text-muted: #475569;
            --text-sub: #94A3B8;
            --text-light: #F8FAFC;
            --border-color: #E2E8F0;
            --border-dark: #334155;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-subtle: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
            --shadow-glow: 0 0 20px rgba(0, 220, 130, 0.4);
            --max-w: 1240px;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        /* 布局容器 */
        .site-container {
            width: 100%;
            max-width: var(--max-w);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            background: rgba(255, 255, 255, 0.92);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition-smooth);
        }

        .header-topbar {
            background: var(--bg-dark);
            color: #94A3B8;
            font-size: 0.8125rem;
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--border-dark);
        }

        .topbar-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .topbar-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-light);
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: var(--brand-primary);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--brand-primary);
            animation: pulseAnim 2s infinite;
        }

        @keyframes pulseAnim {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.85); }
        }

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

        .brand-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--bg-dark);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }

        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: 900;
            font-size: 1.25rem;
            box-shadow: 0 4px 10px rgba(0, 220, 130, 0.35);
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-muted);
            padding: 0.5rem 0;
            position: relative;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--bg-dark);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--brand-primary);
            transition: var(--transition-smooth);
            border-radius: 2px;
        }

        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        /* 按钮设计规范 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0.75rem 1.6rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9375rem;
            cursor: pointer;
            transition: var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--brand-primary);
            color: #064E3B;
            box-shadow: 0 4px 14px rgba(0, 220, 130, 0.4);
        }

        .btn-primary:hover {
            background-color: var(--brand-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 220, 130, 0.5);
            color: #064E3B;
        }

        .btn-secondary {
            background-color: var(--bg-dark);
            color: #FFFFFF;
        }

        .btn-secondary:hover {
            background-color: #1E293B;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(15, 23, 42, 0.2);
            color: #FFFFFF;
        }

        .btn-purple {
            background-color: var(--brand-secondary);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
        }

        .btn-purple:hover {
            background-color: var(--brand-secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--border-color);
            color: var(--text-main);
        }

        .btn-outline:hover {
            border-color: var(--brand-primary);
            color: #047857;
            background: rgba(0, 220, 130, 0.05);
        }

        /* 板块通用体系 */
        .section-block {
            padding: 5rem 0;
            position: relative;
        }

        .section-alt {
            background-color: #F1F5F9;
        }

        .section-dark {
            background-color: var(--bg-dark);
            color: #F8FAFC;
        }

        .section-header {
            max-width: 760px;
            margin: 0 auto 3.5rem auto;
            text-align: center;
        }

        .section-badge {
            display: inline-block;
            padding: 0.35rem 0.85rem;
            background: rgba(0, 220, 130, 0.15);
            color: #047857;
            font-size: 0.8125rem;
            font-weight: 700;
            border-radius: 30px;
            margin-bottom: 0.85rem;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .section-dark .section-badge {
            background: rgba(0, 220, 130, 0.2);
            color: var(--brand-primary);
        }

        .section-title {
            font-size: clamp(1.6rem, 3.2vw, 2.3rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .section-dark .section-title {
            color: #FFFFFF;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .section-dark .section-desc {
            color: #94A3B8;
        }

        /* 1. 首屏 HERO 区 (拼团转化风格) */
        .hero-section {
            padding: 4.5rem 0 5.5rem 0;
            position: relative;
            background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 3.5rem;
            align-items: center;
        }

        .hero-h1 {
            font-size: clamp(2.2rem, 4.2vw, 3.5rem);
            font-weight: 900;
            line-height: 1.18;
            margin-bottom: 1.25rem;
            letter-spacing: -1px;
            color: var(--bg-dark);
        }

        .hero-h1 span {
            color: var(--brand-secondary);
            background: linear-gradient(135deg, var(--brand-secondary) 0%, #00DC82 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.125rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
            line-height: 1.75;
        }

        /* 拼团转化卡片组件 */
        .group-order-card {
            background: #FFFFFF;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            box-shadow: var(--shadow-subtle);
            margin-bottom: 2rem;
            position: relative;
        }

        .group-status-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px dashed var(--border-color);
        }

        .group-tag {
            background: #FEF2F2;
            color: #DC2626;
            font-size: 0.8125rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
        }

        .group-countdown {
            font-size: 0.875rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        .group-countdown strong {
            color: #DC2626;
            font-size: 1rem;
        }

        .group-progress-info {
            display: flex;
            justify-content: space-between;
            font-size: 0.9375rem;
            margin-bottom: 0.5rem;
            color: var(--text-main);
        }

        .progress-bar-wrap {
            height: 10px;
            background: #E2E8F0;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 1.25rem;
        }

        .progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
            border-radius: 10px;
            width: 82%;
        }

        .group-actions-row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hero-feature-tags {
            display: flex;
            gap: 1.5rem;
            margin-top: 1.75rem;
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
        }

        .tag-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.875rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-primary);
        }

        .hero-visual {
            position: relative;
        }

        .hero-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
            border: 4px solid #FFFFFF;
            background: #000;
        }

        .hero-img-wrap img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .hero-img-wrap:hover img {
            transform: scale(1.03);
        }

        .hero-float-badge {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: #FFFFFF;
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .float-badge-icon {
            width: 44px;
            height: 44px;
            background: rgba(0, 220, 130, 0.15);
            color: #047857;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: bold;
        }

        /* 2. 内容日历 (#calendar) */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
        }

        .calendar-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            transition: var(--transition-smooth);
            position: relative;
            box-shadow: var(--shadow-subtle);
        }

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

        .calendar-date {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 700;
            padding: 0.25rem 0.65rem;
            border-radius: 6px;
            background: #EFF6FF;
            color: #2563EB;
            margin-bottom: 0.85rem;
        }

        .calendar-card h3 {
            font-size: 1.15rem;
            margin-bottom: 0.5rem;
            font-weight: 700;
        }

        .calendar-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1rem;
        }

        .calendar-meta {
            font-size: 0.8125rem;
            color: var(--text-sub);
            border-top: 1px solid #F1F5F9;
            padding-top: 0.75rem;
            display: flex;
            justify-content: space-between;
        }

        /* 3. 热门专题 (#topics) */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 2rem;
        }

        .topic-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .topic-thumb {
            height: 200px;
            position: relative;
            overflow: hidden;
        }

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

        .topic-card:hover .topic-thumb img {
            transform: scale(1.05);
        }

        .topic-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(15, 23, 42, 0.8);
            color: #FFFFFF;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 700;
            backdrop-filter: blur(4px);
        }

        .topic-body {
            padding: 1.5rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .topic-body p {
            font-size: 0.9375rem;
            color: var(--text-muted);
            margin-bottom: 1.25rem;
            line-height: 1.65;
            flex-grow: 1;
        }

        .topic-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
        }

        .topic-link {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--brand-secondary);
        }

        .topic-link:hover {
            color: var(--brand-secondary-hover);
        }

        /* 4. 核心功能矩阵 (#features) */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .feature-box {
            background: var(--bg-surface);
            padding: 2.2rem 1.8rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition-smooth);
            position: relative;
        }

        .feature-box:hover {
            transform: translateY(-5px);
            border-color: var(--brand-primary);
            box-shadow: 0 12px 24px -10px rgba(0, 220, 130, 0.3);
        }

        .feature-icon-circle {
            width: 54px;
            height: 54px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(0, 220, 130, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            color: #047857;
            font-weight: bold;
        }

        .feature-box h3 {
            font-size: 1.2rem;
            margin-bottom: 0.75rem;
            font-weight: 700;
        }

        .feature-box p {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 5. 观点解读与底层架构 (#insights) */
        .insights-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
        }

        .insights-content h3 {
            font-size: 1.85rem;
            font-weight: 800;
            margin-bottom: 1.25rem;
            line-height: 1.35;
        }

        .insights-content p {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .architecture-param-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }

        .arch-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .arch-item-num {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--brand-secondary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8125rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .arch-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }

        .arch-item p {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .insights-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

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

        /* 6. 高对比度深色案例与分发理念 (#philosophy) */
        .philosophy-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3.5rem;
            align-items: center;
        }

        .philosophy-left h3 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 1.5rem;
            color: #FFFFFF;
        }

        .philosophy-left p {
            font-size: 1.05rem;
            color: #94A3B8;
            line-height: 1.75;
            margin-bottom: 2rem;
        }

        .philosophy-cards {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .phil-card {
            background: var(--bg-dark-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border-left: 4px solid var(--brand-primary);
        }

        .phil-card h4 {
            font-size: 1.15rem;
            color: #FFFFFF;
            margin-bottom: 0.5rem;
        }

        .phil-card p {
            font-size: 0.9rem;
            color: #94A3B8;
            line-height: 1.6;
        }

        /* 7. 资讯与攻略动态 (#news) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .news-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .news-thumb {
            height: 190px;
            overflow: hidden;
        }

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

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

        .news-content {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-date {
            font-size: 0.8125rem;
            color: var(--text-sub);
            margin-bottom: 0.65rem;
        }

        .news-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.65rem;
            line-height: 1.45;
        }

        .news-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 1.25rem;
            flex-grow: 1;
        }

        .news-read-more {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--brand-secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 8. 媒体精选与公会场景墙 (#stories) */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 2rem;
        }

        .story-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            box-shadow: var(--shadow-subtle);
            position: relative;
        }

        .story-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 1.2rem;
        }

        .story-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: bold;
            font-size: 1.2rem;
        }

        .story-meta h4 {
            font-size: 1.05rem;
            font-weight: 700;
        }

        .story-meta span {
            font-size: 0.8125rem;
            color: var(--text-sub);
        }

        .story-card p {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        .story-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .story-pill {
            font-size: 0.75rem;
            background: #F1F5F9;
            color: var(--text-muted);
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 9. 数据分析与运营指标 (#stats) */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            text-align: center;
        }

        .stat-item {
            padding: 2.2rem 1.5rem;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-subtle);
        }

        .stat-num {
            font-size: clamp(2rem, 3.5vw, 2.75rem);
            font-weight: 900;
            color: var(--bg-dark);
            line-height: 1.1;
            margin-bottom: 0.5rem;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
        }

        .stat-num span {
            color: var(--brand-primary);
            font-size: 1.75rem;
        }

        .stat-title {
            font-size: 0.9375rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 10. 用户多维评价口碑 (#reviews) */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 1.75rem;
        }

        .review-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-stars {
            color: #F59E0B;
            font-size: 1rem;
            margin-bottom: 0.85rem;
            letter-spacing: 2px;
        }

        .review-text {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.25rem;
        }

        .reviewer-info {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid #F1F5F9;
            padding-top: 0.85rem;
            font-size: 0.8125rem;
        }

        .reviewer-name {
            font-weight: 700;
            color: var(--text-main);
        }

        .reviewer-tag {
            color: #047857;
            background: #ECFDF5;
            padding: 0.15rem 0.5rem;
            border-radius: 4px;
        }

        /* 11. 常见问题解答手风琴 (#faq) */
        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .faq-item.active {
            border-color: var(--brand-secondary);
            box-shadow: var(--shadow-subtle);
        }

        .faq-trigger {
            width: 100%;
            padding: 1.25rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            cursor: pointer;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .faq-trigger:hover {
            color: var(--brand-secondary);
        }

        .faq-icon {
            font-size: 1.25rem;
            transition: transform 0.3s ease;
            color: var(--text-sub);
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--brand-secondary);
        }

        .faq-content {
            padding: 0 1.5rem 1.25rem 1.5rem;
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-content {
            display: block;
        }

        /* 12. 平台保障条 (#guarantee) */
        .guarantee-bar {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
        }

        .guarantee-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            box-shadow: var(--shadow-subtle);
        }

        .guarantee-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: #ECFDF5;
            color: #047857;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            flex-shrink: 0;
            font-weight: bold;
        }

        .guarantee-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.2rem;
        }

        .guarantee-card p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.45;
        }

        /* 13. 底部超级转化收口 (#cta / 订阅条) */
        .cta-box {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1E1B4B 100%);
            border-radius: var(--radius-lg);
            padding: 4.5rem 3rem;
            color: #FFFFFF;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-dark);
            box-shadow: var(--shadow-hover);
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 220, 130, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-box h3 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 900;
            margin-bottom: 1.25rem;
            letter-spacing: -0.5px;
        }

        .cta-box p {
            font-size: 1.1rem;
            color: #94A3B8;
            max-width: 680px;
            margin: 0 auto 2.5rem auto;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 1.25rem;
            flex-wrap: wrap;
        }

        /* 全局页脚 */
        .site-footer {
            background-color: var(--bg-dark);
            color: #94A3B8;
            font-size: 0.875rem;
            border-top: 1px solid var(--border-dark);
            padding: 4.5rem 0 2rem 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 3rem;
            margin-bottom: 3.5rem;
        }

        .footer-brand h4 {
            color: #FFFFFF;
            font-size: 1.35rem;
            margin-bottom: 1rem;
            font-weight: 800;
        }

        .footer-brand p {
            color: #94A3B8;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .footer-col h5 {
            color: #FFFFFF;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
        }

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.8125rem;
        }

        .footer-bottom a {
            color: #94A3B8;
        }

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

        /* 响应式断点优化 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .hero-visual {
                max-width: 600px;
                margin: 0 auto;
            }
            .insights-wrapper {
                grid-template-columns: 1fr;
            }
            .philosophy-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none; /* 移动端精简保留核心CTA */
            }
            .header-topbar {
                display: none;
            }
            .header-main {
                height: 60px;
            }
            .section-block {
                padding: 3.5rem 0;
            }
            .cta-box {
                padding: 3rem 1.5rem;
            }
            .hero-img-wrap img {
                height: 320px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }