/* roulang page: index */
:root {
            --primary: #5E43F3;
            --primary-light: #7A63F8;
            --primary-glow: rgba(94, 67, 243, 0.15);
            --accent: #00E5A3;
            --accent-dim: rgba(0, 229, 163, 0.12);
            --dark: #0F1115;
            --dark-surface: #161920;
            --dark-card: #1D212A;
            --bg-body: #F8F9FA;
            --bg-white: #FFFFFF;
            --text-main: #1D2129;
            --text-secondary: #4E5969;
            --text-muted: #86909C;
            --border-light: rgba(0, 0, 0, 0.08);
            --border-dark: rgba(255, 255, 255, 0.08);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-pill: 9999px;
            --shadow-subtle: 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-elevated: 0 16px 36px -6px rgba(0, 0, 0, 0.06), 0 4px 12px -2px rgba(0, 0, 0, 0.03);
            --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        /* 基础重置 */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        body {
            overflow-x: hidden;
            width: 100%;
        }

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

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部系统条 */
        .top-status-bar {
            background: var(--dark);
            color: #A4B2C1;
            font-size: 13px;
            border-bottom: 1px solid var(--border-dark);
            padding: 8px 0;
        }
        .top-status-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .status-pulse {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            box-shadow: 0 0 10px var(--accent);
            animation: pulse-glow 2s infinite;
        }
        @keyframes pulse-glow {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.15); }
        }
        .top-links {
            display: flex;
            gap: 20px;
        }
        .top-links a:hover {
            color: var(--accent);
        }

        /* 主导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition-smooth);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--dark);
        }
        .brand-icon-box {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFF;
            box-shadow: 0 6px 14px var(--primary-glow);
        }
        .brand-icon-box svg {
            width: 20px;
            height: 20px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
        }
        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition-smooth);
        }
        .nav-menu a:hover::after, .nav-menu a.active::after {
            width: 100%;
        }
        .nav-cta-btn {
            background: var(--primary);
            color: #FFFFFF;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 16px var(--primary-glow);
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta-btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px var(--primary-glow);
        }
        .mobile-toggle {
            display: none;
            background: none;
            cursor: pointer;
            padding: 8px;
            color: var(--dark);
        }

        /* Section 通用规范 */
        section {
            padding: 96px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px auto;
        }
        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: var(--accent-dim);
            color: #059669;
            font-size: 13px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }
        .section-dark .section-badge {
            background: rgba(0, 229, 163, 0.15);
            color: var(--accent);
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Hero 拼团转化蓝图 */
        .hero-section {
            padding: 80px 0 100px 0;
            background: radial-gradient(circle at top right, rgba(94, 67, 243, 0.08), transparent 50%),
                        radial-gradient(circle at bottom left, rgba(0, 229, 163, 0.05), transparent 40%),
                        #FFFFFF;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 46px;
            line-height: 1.2;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.03em;
            margin-bottom: 24px;
        }
        .hero-lead {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 32px;
        }
        .group-status-banner {
            display: inline-flex;
            align-items: center;
            gap: 16px;
            background: #F4F3FF;
            border: 1px solid rgba(94, 67, 243, 0.2);
            padding: 12px 20px;
            border-radius: var(--radius-md);
            margin-bottom: 36px;
        }
        .group-avatars {
            display: flex;
            align-items: center;
        }
        .avatar-circle {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 2px solid #FFF;
            margin-left: -8px;
            background: var(--primary-light);
            color: #FFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
        }
        .avatar-circle:first-child { margin-left: 0; background: #3B82F6; }
        .avatar-circle:nth-child(2) { background: #10B981; }
        .avatar-circle:nth-child(3) { background: #F59E0B; }
        .group-meta {
            font-size: 14px;
            color: var(--dark);
            font-weight: 600;
        }
        .group-meta span {
            color: var(--primary);
            font-weight: 800;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFF;
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 8px 24px var(--primary-glow);
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px var(--primary-glow);
        }
        .btn-secondary {
            background: #FFF;
            color: var(--dark);
            border: 1px solid var(--border-light);
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            cursor: pointer;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #FBFBFF;
            transform: translateY(-2px);
        }
        .hero-visual-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 30px;
            box-shadow: var(--shadow-elevated);
            position: relative;
        }
        .visual-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 20px;
        }
        .visual-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark);
        }
        .metric-badge {
            background: rgba(0, 229, 163, 0.15);
            color: #059669;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
        }
        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 24px;
            height: 240px;
        }
        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .realtime-telemetry {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .telemetry-item {
            background: var(--bg-body);
            padding: 14px;
            border-radius: var(--radius-sm);
        }
        .telemetry-num {
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 4px;
        }
        .telemetry-label {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 优惠阶梯 (板块二) */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .tier-card {
            background: #FFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            position: relative;
            transition: var(--transition-smooth);
        }
        .tier-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-elevated);
            border-color: var(--primary);
        }
        .tier-level {
            font-size: 13px;
            font-weight: 800;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 12px;
            letter-spacing: 0.05em;
        }
        .tier-discount {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .tier-discount span {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .tier-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 24px;
        }
        .tier-progress-track {
            height: 6px;
            background: #E5E7EB;
            border-radius: var(--radius-pill);
            overflow: hidden;
            margin-bottom: 12px;
        }
        .tier-progress-bar {
            height: 100%;
            background: var(--primary);
            border-radius: var(--radius-pill);
        }
        .tier-foot {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 套餐对比 (板块三) */
        .plan-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            align-items: stretch;
        }
        .plan-card {
            background: #FFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 38px 30px;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: var(--transition-smooth);
        }
        .plan-card.featured {
            border: 2px solid var(--primary);
            box-shadow: 0 16px 40px rgba(94, 67, 243, 0.12);
            transform: scale(1.03);
            z-index: 2;
        }
        .featured-tag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #FFF;
            font-size: 12px;
            font-weight: 800;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.05em;
        }
        .plan-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .plan-price {
            font-size: 38px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 16px;
        }
        .plan-price span {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
        }
        .plan-intro {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .plan-features {
            list-style: none;
            margin-bottom: 32px;
            flex-grow: 1;
        }
        .plan-features li {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 10px 0;
            border-bottom: 1px dashed rgba(0, 0, 0, 0.06);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .plan-features li svg {
            width: 16px;
            height: 16px;
            color: var(--accent);
            flex-shrink: 0;
        }

        /* 限时入口 (板块四) */
        .countdown-strip {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-surface) 100%);
            border-radius: var(--radius-lg);
            padding: 48px;
            color: #FFF;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 36px;
            align-items: center;
        }
        .countdown-title {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .countdown-desc {
            font-size: 15px;
            color: #A4B2C1;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .timer-boxes {
            display: flex;
            gap: 16px;
        }
        .timer-unit {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 16px;
            min-width: 72px;
            text-align: center;
        }
        .timer-val {
            font-size: 26px;
            font-weight: 800;
            color: var(--accent);
            display: block;
        }
        .timer-label {
            font-size: 11px;
            color: #8E9BAE;
            text-transform: uppercase;
        }

        /* 爆款清单 (板块五) */
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .showcase-card {
            background: #FFF;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition-smooth);
        }
        .showcase-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-elevated);
        }
        .showcase-img-box {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .showcase-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .showcase-card:hover .showcase-img-box img {
            transform: scale(1.06);
        }
        .showcase-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 17, 21, 0.75);
            backdrop-filter: blur(8px);
            color: #FFF;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
        }
        .showcase-body {
            padding: 24px;
        }
        .showcase-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .showcase-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 20px;
        }
        .showcase-stats {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-muted);
        }
        .showcase-stats strong {
            color: var(--primary);
            font-weight: 700;
        }

        /* 评价墙 (板块六) */
        .reviews-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .review-box {
            background: #FFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-stars {
            display: flex;
            gap: 4px;
            color: #F59E0B;
            margin-bottom: 16px;
        }
        .review-stars svg {
            width: 16px;
            height: 16px;
            fill: currentColor;
        }
        .review-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
            font-style: italic;
        }
        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .reviewer-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #EDF0F7;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 15px;
        }
        .reviewer-name {
            font-size: 14px;
            font-weight: 700;
            color: var(--dark);
        }
        .reviewer-org {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 保障图标条 (板块七) */
        .guarantee-bar {
            background: #FFF;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 56px 0;
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .guarantee-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .guarantee-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--accent-dim);
            color: #059669;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .guarantee-icon svg {
            width: 24px;
            height: 24px;
        }
        .guarantee-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .guarantee-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 资讯列表 (板块八) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: #FFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .news-thumb {
            height: 180px;
            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-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .news-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: flex;
            justify-content: space-between;
        }
        .news-heading {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
            line-height: 1.45;
        }
        .news-snippet {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        .news-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* 加购引导 (板块九) */
        .cart-lead-box {
            background: linear-gradient(135deg, #1B1E28 0%, #0F1115 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            color: #FFF;
            position: relative;
            overflow: hidden;
        }
        .cart-lead-inner {
            max-width: 680px;
            position: relative;
            z-index: 2;
        }
        .cart-lead-title {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cart-lead-desc {
            font-size: 15px;
            color: #A4B2C1;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .lead-input-group {
            display: flex;
            gap: 12px;
            max-width: 520px;
            background: rgba(255, 255, 255, 0.08);
            padding: 6px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border-dark);
        }
        .lead-input-group input {
            background: transparent;
            padding: 10px 20px;
            color: #FFF;
            flex-grow: 1;
            font-size: 14px;
        }
        .lead-input-group input::placeholder {
            color: #8E9BAE;
        }
        .lead-input-group button {
            background: var(--accent);
            color: var(--dark);
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition-smooth);
            white-space: nowrap;
        }
        .lead-input-group button:hover {
            background: #18F6B4;
            transform: translateY(-1px);
        }

        /* 扩展板块十：底层技术参数 (深色区域) */
        .section-dark {
            background-color: var(--dark);
            color: #FFF;
        }
        .section-dark .section-title {
            color: #FFF;
        }
        .section-dark .section-desc {
            color: #A4B2C1;
        }
        .specs-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .spec-card {
            background: var(--dark-card);
            border: 1px solid var(--border-dark);
            padding: 28px;
            border-radius: var(--radius-md);
        }
        .spec-kpi {
            font-size: 34px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 8px;
            font-family: monospace, sans-serif;
        }
        .spec-name {
            font-size: 15px;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 8px;
        }
        .spec-detail {
            font-size: 13px;
            color: #8E9BAE;
            line-height: 1.6;
        }

        /* 扩展板块十一：常见误区澄清 */
        .clarify-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .clarify-item {
            background: #FFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 30px;
        }
        .clarify-label-bad {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #EF4444;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .clarify-wrong {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 14px;
        }
        .clarify-divider {
            height: 1px;
            background: #F3F4F6;
            margin-bottom: 14px;
        }
        .clarify-label-good {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #10B981;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .clarify-correct {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 扩展板块十二：合作伙伴认证网格 */
        .partner-wall {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }
        .partner-cell {
            background: #FFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 20px;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
            transition: var(--transition-smooth);
        }
        .partner-cell:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* 页脚规范 */
        .site-footer {
            background: var(--dark);
            color: #8E9BAE;
            font-size: 14px;
            padding: 80px 0 32px 0;
            border-top: 1px solid var(--border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 60px;
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #FFF;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-about {
            font-size: 13px;
            line-height: 1.7;
            color: #8E9BAE;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid var(--border-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-info-bar {
            display: flex;
            gap: 24px;
        }

        /* 响应式断点控制 */
        @media (max-width: 1024px) {
            .hero-grid, .countdown-strip {
                grid-template-columns: 1fr;
            }
            .plan-grid, .showcase-grid, .tier-grid, .reviews-wall, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid, .specs-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partner-wall {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .plan-card.featured {
                transform: none;
            }
        }

        @media (max-width: 768px) {
            .top-status-bar {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFF;
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-elevated);
                gap: 18px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-cta-btn {
                display: none;
            }
            .plan-grid, .showcase-grid, .tier-grid, .reviews-wall, .news-grid, .clarify-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid, .specs-grid {
                grid-template-columns: 1fr;
            }
            .partner-wall {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 28px;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .countdown-strip {
                padding: 30px 20px;
            }
            .cart-lead-box {
                padding: 36px 20px;
            }
            .lead-input-group {
                flex-direction: column;
                background: transparent;
                border: none;
                padding: 0;
            }
            .lead-input-group input {
                background: rgba(255, 255, 255, 0.08);
                border: 1px solid var(--border-dark);
                border-radius: var(--radius-pill);
                margin-bottom: 10px;
            }
            .lead-input-group button {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-info-bar {
                flex-direction: column;
                gap: 8px;
            }
        }