/* roulang page: index */
:root {
      --primary: #0284c7;
      --primary-hover: #0369a1;
      --primary-light: #e0f2fe;
      --secondary: #10b981;
      --secondary-dark: #059669;
      --accent: #f59e0b;
      --danger: #ef4444;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-dark: #0f172a;
      --bg-darker: #020617;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --container-max: 1240px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      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;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-main);
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input, select {
      font-family: inherit;
      font-size: 1rem;
      outline: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }

    /* 顶部辅助微导航 */
    .top-bar {
      background-color: var(--bg-dark);
      color: #94a3b8;
      font-size: 0.8125rem;
      padding: 0.5rem 0;
      border-bottom: 1px solid #1e293b;
    }
    .top-bar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.75rem;
    }
    .status-badge-group {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--secondary);
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.625rem;
      font-size: 1.25rem;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.02em;
    }
    .brand-icon-box {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), #38bdf8);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 1.1rem;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 1.75rem;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 0.35rem 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 0.875rem;
    }

    /* 移动端菜单控制 */
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 0.5rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }
    .menu-toggle svg {
      width: 22px;
      height: 22px;
      fill: var(--text-main);
    }

    /* 按钮通用系统 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-weight: 600;
      font-size: 0.9375rem;
      padding: 0.6875rem 1.375rem;
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn:active {
      transform: scale(0.98);
    }
    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 6px 16px rgba(2, 132, 199, 0.35);
    }
    .btn-secondary {
      background-color: var(--secondary);
      color: #ffffff;
    }
    .btn-secondary:hover {
      background-color: var(--secondary-dark);
    }
    .btn-outline {
      border-color: var(--border-color);
      background-color: #ffffff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .btn-dark {
      background-color: #1e293b;
      color: #ffffff;
      border-color: #334155;
    }
    .btn-dark:hover {
      background-color: #334155;
    }
    .btn-lg {
      padding: 0.875rem 2rem;
      font-size: 1.0625rem;
      border-radius: var(--radius-md);
    }

    /* 页面各 Section 统一规范 */
    .section-block {
      padding: 5rem 0;
      position: relative;
    }
    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #ffffff;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 3.5rem auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--primary);
      background-color: var(--primary-light);
      padding: 0.25rem 0.875rem;
      border-radius: var(--radius-full);
      margin-bottom: 0.875rem;
    }
    .section-dark .section-tag {
      background-color: rgba(14, 165, 233, 0.2);
      color: #38bdf8;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.35;
      margin-bottom: 1rem;
      color: var(--text-main);
    }
    .section-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .section-dark .section-desc {
      color: #94a3b8;
    }

    /* 1. 首屏 Hero 架构 (直播预告封面 + 开播倒计时 + 提醒订阅 + 速查) */
    .hero-section {
      background: linear-gradient(180deg, #0b1329 0%, #0f172a 100%);
      color: #ffffff;
      padding: 4.5rem 0 5.5rem 0;
      position: relative;
      overflow: hidden;
    }
    .hero-bg-cover {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.18;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 3rem;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-meta-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.35rem 0.85rem;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-full);
      font-size: 0.8125rem;
      color: #38bdf8;
      margin-bottom: 1.5rem;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.03em;
      margin-bottom: 1.25rem;
      color: #ffffff;
    }
    .hero-title span {
      background: linear-gradient(135deg, #38bdf8 0%, #10b981 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 1.0625rem;
      line-height: 1.8;
      color: #cbd5e1;
      margin-bottom: 2rem;
    }
    
    /* Hero 内的直播开奖预告与倒计时条 */
    .hero-broadcast-card {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(56, 189, 248, 0.3);
      border-radius: var(--radius-lg);
      padding: 1.25rem 1.5rem;
      margin-bottom: 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }
    .broadcast-info {
      display: flex;
      align-items: center;
      gap: 0.875rem;
    }
    .live-indicator {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.75rem;
      font-weight: 700;
      background-color: #ef4444;
      color: #ffffff;
      padding: 0.2rem 0.55rem;
      border-radius: var(--radius-full);
      text-transform: uppercase;
    }
    .broadcast-countdown {
      display: flex;
      gap: 0.5rem;
      align-items: center;
    }
    .time-slot {
      background: #020617;
      border: 1px solid #334155;
      border-radius: var(--radius-sm);
      padding: 0.35rem 0.65rem;
      text-align: center;
      min-width: 48px;
    }
    .time-num {
      display: block;
      font-size: 1.15rem;
      font-weight: 800;
      color: #38bdf8;
      font-family: monospace;
    }
    .time-label {
      font-size: 0.6875rem;
      color: #94a3b8;
    }

    /* 右侧即时验证操作工作台 */
    .quick-query-panel {
      background: #ffffff;
      color: var(--text-main);
      border-radius: var(--radius-lg);
      padding: 2rem;
      box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .query-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.25rem;
      padding-bottom: 0.875rem;
      border-bottom: 1px solid var(--border-color);
    }
    .query-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
    }
    .chain-pill-selector {
      display: flex;
      gap: 0.35rem;
      background: #f1f5f9;
      padding: 0.25rem;
      border-radius: var(--radius-md);
    }
    .chain-pill {
      font-size: 0.75rem;
      font-weight: 600;
      padding: 0.25rem 0.65rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
      color: var(--text-muted);
      border: none;
      background: transparent;
      transition: var(--transition);
    }
    .chain-pill.active {
      background: #ffffff;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .query-input-group {
      margin-bottom: 1.25rem;
    }
    .query-input-label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
      color: #334155;
    }
    .hash-input-field {
      width: 100%;
      padding: 0.875rem 1rem;
      font-size: 0.875rem;
      font-family: monospace;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-md);
      background-color: #f8fafc;
      transition: var(--transition);
    }
    .hash-input-field:focus {
      background-color: #ffffff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
    }
    .query-sample-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-top: 0.5rem;
      margin-bottom: 1.25rem;
    }
    .sample-link {
      color: var(--primary);
      cursor: pointer;
      text-decoration: underline;
    }
    .query-res-box {
      background-color: #f8fafc;
      border: 1px dashed #cbd5e1;
      border-radius: var(--radius-md);
      padding: 0.875rem;
      font-size: 0.8125rem;
      font-family: monospace;
      margin-bottom: 1.25rem;
      color: #334155;
      display: flex;
      flex-direction: column;
      gap: 0.35rem;
    }

    /* 2. 优惠阶梯与查询服务层级（蓝图要求） */
    .tiers-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .tier-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.25rem 1.75rem;
      position: relative;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .tier-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #38bdf8;
    }
    .tier-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }
    .tier-tag {
      position: absolute;
      top: -12px;
      right: 1.5rem;
      background: var(--primary);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.2rem 0.75rem;
      border-radius: var(--radius-full);
    }
    .tier-title {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .tier-price-box {
      margin: 1.25rem 0 1.5rem 0;
      display: flex;
      align-items: baseline;
      gap: 0.35rem;
    }
    .tier-price {
      font-size: 2.5rem;
      font-weight: 800;
      color: #0f172a;
    }
    .tier-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      margin-bottom: 1.5rem;
      line-height: 1.6;
    }
    .tier-feature-list {
      list-style: none;
      margin-bottom: 2rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }
    .tier-feature-item {
      font-size: 0.875rem;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .check-icon {
      color: var(--secondary);
      font-weight: 900;
    }

    /* 3. 套餐对比矩阵（表格重构卡） */
    .compare-table-wrap {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.9375rem;
    }
    .compare-table th, .compare-table td {
      padding: 1.125rem 1.5rem;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background-color: #f8fafc;
      font-weight: 700;
      color: #0f172a;
    }
    .compare-table tr:hover td {
      background-color: #f1f5f9;
    }
    .badge-check {
      color: var(--secondary);
      font-weight: bold;
    }

    /* 4. 限时直通与技术架构入口 */
    .flash-entry-card {
      background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 3rem;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 2.5rem;
      align-items: center;
    }
    .flash-entry-title {
      font-size: 2rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 1rem;
    }
    .flash-entry-text {
      font-size: 1.05rem;
      color: #e0f2fe;
      margin-bottom: 1.5rem;
      line-height: 1.7;
    }
    .tech-metric-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
    }
    .tech-metric-tag {
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.25);
      padding: 0.4rem 0.85rem;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 600;
    }

    /* 5. 爆款功能与开奖校验清单 */
    .bestseller-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .bestseller-item {
      background: #ffffff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .bestseller-item:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .bestseller-img-box {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .bestseller-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .bestseller-item:hover .bestseller-img {
      transform: scale(1.05);
    }
    .bestseller-content {
      padding: 1.75rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .bestseller-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: #0f172a;
    }
    .bestseller-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }

    /* 6. 痛点清单与密码学解法 */
    .painpoints-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }
    .painpoint-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding:1.75rem;
      border: 1px solid #fee2e2;
      border-left: 4px solid #ef4444;
      display: flex;
      gap: 1.25rem;
      align-items: flex-start;
      box-shadow: var(--shadow-sm);
    }
    .painpoint-icon {
      width: 44px;
      height: 44px;
      background-color: #fef2f2;
      color: #ef4444;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
    }
    .painpoint-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: #991b1b;
      margin-bottom: 0.35rem;
    }
    .painpoint-solution {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 三步极速链上校验流程 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2rem;
      position: relative;
      transition: var(--transition);
    }
    .step-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .step-num-ball {
      width: 46px;
      height: 46px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 1.25rem;
      border: 2px solid #bae6fd;
    }
    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: #0f172a;
    }
    .step-text {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 8. 成果与数据指标通栏 */
    .metrics-bar-wrap {
      background: #0f172a;
      border-top: 1px solid #1e293b;
      border-bottom: 1px solid #1e293b;
      padding: 3.5rem 0;
      color: #ffffff;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }
    .metric-num {
      font-size: 2.75rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1.1;
      margin-bottom: 0.5rem;
      font-family: monospace;
    }
    .metric-label {
      font-size: 0.9375rem;
      color: #94a3b8;
      font-weight: 600;
    }

    /* 9. 适用人群与业务场景 */
    .personas-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .persona-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 2.25rem 1.75rem;
      transition: var(--transition);
    }
    .persona-card:hover {
      border-color: #38bdf8;
      box-shadow: var(--shadow-md);
    }
    .persona-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--secondary);
      background: #ecfdf5;
      padding: 0.2rem 0.65rem;
      border-radius: var(--radius-sm);
      margin-bottom: 1rem;
    }
    .persona-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: #0f172a;
    }
    .persona-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 10. 评价墙与口碑气泡 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .review-bubble {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 2rem;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 0.9375rem;
      color: #334155;
      line-height: 1.75;
      margin-bottom: 1.5rem;
      position: relative;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 0.875rem;
      padding-top: 1rem;
      border-top: 1px dashed var(--border-color);
    }
    .author-avatar-box {
      width: 42px;
      height: 42px;
      background: #e2e8f0;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #475569;
    }
    .author-meta-name {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #0f172a;
    }
    .author-meta-org {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 11. 保障图标条 */
    .guarantee-bar {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2rem;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      box-shadow: var(--shadow-sm);
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .guarantee-icon {
      width: 48px;
      height: 48px;
      background: #f0fdf4;
      border: 1px solid #bbf7d0;
      color: var(--secondary);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      flex-shrink: 0;
    }
    .guarantee-name {
      font-size: 1rem;
      font-weight: 700;
      color: #0f172a;
    }
    .guarantee-sub {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 12. 资讯与行业深度洞察 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #38bdf8;
    }
    .news-card-img {
      height: 180px;
      object-fit: cover;
      width: 100%;
    }
    .news-content {
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8125rem;
      color: var(--text-light);
      margin-bottom: 0.5rem;
    }
    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
      line-height: 1.45;
      margin-bottom: 0.75rem;
    }
    .news-excerpt {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 13. 加购与双CTA收口行动 */
    .cta-container-card {
      background: radial-gradient(100% 100% at 50% 0%, #0369a1 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 4rem 2rem;
      text-align: center;
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }
    .cta-container-card::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 60%);
      pointer-events: none;
    }
    .cta-content-inner {
      max-width: 760px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }
    .cta-title {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 1.25rem;
    }
    .cta-text {
      font-size: 1.0625rem;
      color: #cbd5e1;
      margin-bottom: 2.25rem;
      line-height: 1.75;
    }
    .cta-btns {
      display: flex;
      justify-content: center;
      gap: 1.25rem;
      flex-wrap: wrap;
    }

    /* 规范双层页脚 */
    .site-footer {
      background-color: var(--bg-darker);
      color: #94a3b8;
      padding-top: 4.5rem;
      border-top: 1px solid #1e293b;
      font-size: 0.875rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 3rem;
      padding-bottom: 3.5rem;
    }
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.15rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 1rem;
    }
    .footer-brief {
      line-height: 1.7;
      margin-bottom: 1.25rem;
      color: #64748b;
    }
    .footer-heading {
      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: #38bdf8;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding: 1.75rem 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8125rem;
    }
    .footer-cr-links {
      display: flex;
      gap: 1.25rem;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
      .tiers-grid, .bestseller-grid, .steps-row, .personas-grid, .reviews-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics-grid, .guarantee-bar { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
      .flash-entry-card { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-menu, .top-bar-content .status-hide-mobile { display: none; }
      .menu-toggle { display: block; }
      .tiers-grid, .bestseller-grid, .steps-row, .personas-grid, .reviews-grid, .news-grid, .painpoints-grid { grid-template-columns: 1fr; }
      .metrics-grid, .guarantee-bar { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-title { font-size: 2.125rem; }
      .section-title { font-size: 1.75rem; }
      .cta-title { font-size: 1.75rem; }
      .hero-broadcast-card { flex-direction: column; align-items: flex-start; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }