/* roulang page: index */
:root {
      --primary-slate: #0F172A;
      --secondary-dark: #0B0F19;
      --accent-green: #00D084;
      --accent-emerald: #10B981;
      --warning-amber: #F59E0B;
      --danger-red: #EF4444;
      --bg-light: #F8FAFC;
      --surface-white: #FFFFFF;
      --border-light: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --text-main: #0F172A;
      --text-muted: #64748B;
      --text-sub: #94A3B8;
      --radius-xl: 16px;
      --radius-lg: 12px;
      --radius-pill: 9999px;
      --shadow-subtle: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
      --shadow-card: 0 20px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
      --shadow-glow: 0 0 25px rgba(0, 208, 132, 0.25);
      --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Lantinghei SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      background-color: var(--bg-light);
      color: var(--text-main);
      overflow-x: hidden;
      font-size: 16px;
    }

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

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

    button, input {
      font-family: inherit;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航系统 */
    .top-meta-bar {
      background-color: #070B13;
      color: #94A3B8;
      font-size: 13px;
      border-bottom: 1px solid var(--border-dark);
      padding: 6px 0;
    }
    .top-meta-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .meta-status {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent-green);
      border-radius: 50%;
      position: relative;
    }
    .pulse-dot::after {
      content: '';
      position: absolute;
      inset: -3px;
      border-radius: 50%;
      border: 1px solid var(--accent-green);
      animation: pulseAnim 2s infinite;
    }
    @keyframes pulseAnim {
      0% { transform: scale(1); opacity: 1; }
      100% { transform: scale(2.4); opacity: 0; }
    }

    .main-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-light);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 22px;
      color: var(--primary-slate);
      letter-spacing: -0.5px;
    }
    .logo-badge {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--accent-green), var(--accent-emerald));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0F172A;
      font-size: 18px;
      font-weight: 900;
      box-shadow: 0 4px 10px rgba(0, 208, 132, 0.3);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 32px;
      align-items: center;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary-slate);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--accent-green);
      border-radius: 2px;
    }
    .nav-cta-btn {
      background-color: var(--primary-slate);
      color: #FFFFFF;
      padding: 10px 22px;
      border-radius: var(--radius-pill);
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: var(--shadow-subtle);
    }
    .nav-cta-btn:hover {
      background-color: #1E293B;
      transform: translateY(-1px);
    }
    .nav-cta-btn:active {
      transform: scale(0.97);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--primary-slate);
    }

    /* 样式基础工具 */
    .section-wrap {
      padding: 88px 0;
      position: relative;
    }
    .section-wrap.white {
      background-color: var(--surface-white);
    }
    .section-wrap.dark {
      background-color: var(--secondary-dark);
      color: #FFFFFF;
    }
    .section-wrap.soft {
      background-color: #F1F5F9;
    }
    .section-header {
      margin-bottom: 56px;
      max-width: 760px;
    }
    .section-header.center {
      text-align: center;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(0, 208, 132, 0.12);
      color: #059669;
      font-size: 13px;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-wrap.dark .section-tag {
      background: rgba(0, 208, 132, 0.2);
      color: var(--accent-green);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.5px;
      margin-bottom: 16px;
      color: var(--primary-slate);
    }
    .section-wrap.dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-wrap.dark .section-desc {
      color: #94A3B8;
    }

    /* Hero Banner */
    .hero-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
      padding: 70px 0 90px;
      overflow: hidden;
      border-bottom: 1px solid var(--border-light);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.22;
      color: var(--primary-slate);
      letter-spacing: -1px;
      margin-bottom: 24px;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #059669 0%, #00D084 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 17px;
      color: #475569;
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 40px;
    }
    .btn-emerald {
      background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-emerald) 100%);
      color: #0B1E14;
      font-weight: 700;
      font-size: 16px;
      padding: 14px 32px;
      border-radius: var(--radius-pill);
      box-shadow: 0 10px 20px -5px rgba(0, 208, 132, 0.4);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .btn-emerald:hover {
      box-shadow: 0 14px 26px -5px rgba(0, 208, 132, 0.55);
      transform: translateY(-2px);
    }
    .btn-outline {
      background-color: #FFFFFF;
      border: 1px solid var(--border-light);
      color: var(--primary-slate);
      font-weight: 600;
      font-size: 16px;
      padding: 14px 28px;
      border-radius: var(--radius-pill);
    }
    .btn-outline:hover {
      background-color: #F8FAFC;
      border-color: #CBD5E1;
    }
    .checklist-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      border-top: 1px solid var(--border-light);
      padding-top: 24px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .checklist-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .check-icon {
      color: var(--accent-emerald);
      font-weight: bold;
    }
    
    /* 首屏右侧仪表盘与视觉展示 */
    .hero-visual-card {
      position: relative;
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: 20px;
      padding: 20px;
      box-shadow: var(--shadow-card);
    }
    .match-demo-banner {
      border-radius: var(--radius-lg);
      overflow: hidden;
      margin-bottom: 16px;
      position: relative;
      height: 200px;
    }
    .match-demo-banner img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .live-badge-floating {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(4px);
      color: #FFFFFF;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      font-size: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .match-live-score {
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      background: #F8FAFC;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 16px;
      text-align: center;
    }
    .team-name {
      font-weight: 700;
      font-size: 15px;
      color: var(--primary-slate);
    }
    .score-digits {
      font-size: 28px;
      font-weight: 900;
      color: var(--danger-red);
      letter-spacing: 2px;
      padding: 0 16px;
    }
    .match-minute {
      font-size: 12px;
      color: #059669;
      font-weight: 700;
      background: rgba(0, 208, 132, 0.15);
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-top: 4px;
    }

    /* Section 2: 矩阵体系与图文 */
    .matrix-layout {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 56px;
      align-items: center;
    }
    .matrix-image-wrap {
      position: relative;
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
    }
    .spec-sheet-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 28px;
    }
    .spec-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 18px;
    }
    .spec-num {
      font-size: 22px;
      font-weight: 800;
      color: #059669;
      margin-bottom: 4px;
    }
    .spec-title {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* Section 3: 6卡片异构网格 */
    .feature-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-xl);
      padding: 32px 24px;
      transition: var(--transition-fast);
      position: relative;
    }
    .feature-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
      border-color: #CBD5E1;
    }
    .box-icon {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: rgba(0, 208, 132, 0.12);
      color: #059669;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .box-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--primary-slate);
      margin-bottom: 12px;
    }
    .box-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 4: 热门联赛 3 卡横向 */
    .league-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .league-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-fast);
    }
    .league-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card);
    }
    .card-thumb {
      height: 190px;
      overflow: hidden;
    }
    .card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .league-card:hover .card-thumb img {
      transform: scale(1.05);
    }
    .card-body {
      padding: 24px;
    }
    .card-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--primary-slate);
    }
    .card-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 5: 深色引擎区 */
    .engine-wrapper {
      background: radial-gradient(circle at top right, rgba(0, 208, 132, 0.1), transparent 50%), #0B0F19;
      border-radius: 24px;
      padding: 64px 48px;
      border: 1px solid var(--border-dark);
    }
    .engine-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .code-telemetry {
      background: #06090E;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 24px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 13px;
      color: #38BDF8;
      line-height: 1.6;
    }
    .code-telemetry .highlight {
      color: var(--accent-green);
    }
    .code-telemetry .warn {
      color: var(--warning-amber);
    }

    /* Section 6: 4 使用场景 */
    .scenario-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 24px;
      border-left: 4px solid var(--accent-green);
    }
    .scenario-card h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--primary-slate);
    }
    .scenario-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 7: 核心数据度量条 */
    .metrics-bar {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-xl);
      padding: 40px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      box-shadow: var(--shadow-subtle);
    }
    .metric-item {
      text-align: center;
      border-right: 1px solid var(--border-light);
    }
    .metric-item:last-child {
      border-right: none;
    }
    .metric-digit {
      font-size: 38px;
      font-weight: 900;
      color: var(--primary-slate);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-digit span {
      color: #059669;
      font-size: 20px;
    }
    .metric-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* Section 8: 用户故事 */
    .story-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-xl);
      padding: 30px;
      position: relative;
    }
    .story-user {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 18px;
    }
    .user-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary-slate);
      font-size: 18px;
    }
    .user-info h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-slate);
    }
    .user-info p {
      font-size: 12px;
      color: var(--accent-emerald);
      font-weight: 600;
    }
    .story-content {
      font-size: 14px;
      color: #475569;
      line-height: 1.75;
    }

    /* Section 9: 评价墙 (6项网格) */
    .wall-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 22px;
      box-shadow: var(--shadow-subtle);
    }
    .stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 12px;
    }
    .review-text {
      font-size: 13.5px;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .reviewer-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
      border-top: 1px solid #F1F5F9;
      padding-top: 12px;
    }
    .reviewer-tag {
      background: #F1F5F9;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 500;
    }

    /* Section 10: 资讯前瞻摘要 */
    .news-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-xl);
      overflow: hidden;
    }
    .news-cover {
      height: 180px;
    }
    .news-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 24px;
    }
    .news-date {
      font-size: 12px;
      color: #94A3B8;
      margin-bottom: 8px;
      display: block;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
      color: var(--primary-slate);
    }
    .news-excerpt {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: #059669;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* Section 11: FAQ 手风琴 */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      margin-bottom: 16px;
      overflow: hidden;
    }
    .faq-item summary {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 16px;
      color: var(--primary-slate);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: '+';
      font-size: 20px;
      font-weight: 400;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }
    .faq-item[open] summary::after {
      content: '−';
      color: #059669;
    }
    .faq-content {
      padding: 0 24px 22px;
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px solid #F8FAFC;
    }

    /* Section 12: 多版本权益矩阵 */
    .plans-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      align-items: stretch;
    }
    .plan-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-xl);
      padding: 36px 28px;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .plan-card.featured {
      border: 2px solid var(--accent-emerald);
      box-shadow: var(--shadow-glow);
    }
    .plan-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, var(--accent-green), var(--accent-emerald));
      color: #0B1E14;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 16px;
      border-radius: var(--radius-pill);
      text-transform: uppercase;
    }
    .plan-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-slate);
      margin-bottom: 8px;
    }
    .plan-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 42px;
    }
    .plan-tier-name {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary-slate);
      margin-bottom: 24px;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 16px;
    }
    .plan-features {
      list-style: none;
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .plan-features li {
      font-size: 14px;
      color: #334155;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .plan-features li .bullet {
      color: var(--accent-emerald);
      font-weight: bold;
    }

    /* Section 13: 转化 CTA 收口 */
    .cta-container {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      border-radius: 28px;
      padding: 64px 48px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      align-items: center;
      box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    }
    .cta-h2 {
      font-size: 36px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 16px;
    }
    .cta-p {
      font-size: 16px;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .qr-download-panel {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-xl);
      padding: 28px;
      text-align: center;
    }
    .qr-mock {
      width: 140px;
      height: 140px;
      margin: 0 auto 16px;
      background: #FFFFFF;
      padding: 8px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px dashed #00D084;
    }
    .qr-mock-code {
      width: 100%;
      height: 100%;
      background: repeating-linear-gradient(45deg, #0F172A, #0F172A 6px, #FFFFFF 6px, #FFFFFF 12px);
      border-radius: 6px;
    }

    /* 统一页脚 */
    .site-footer {
      background: #070A11;
      color: #94A3B8;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 72px 0 32px;
      font-size: 14px;
    }
    .footer-grid-4 {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.9fr 0.9fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 13.5px;
      line-height: 1.8;
      color: #64748B;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col ul li {
      margin-bottom: 12px;
    }
    .footer-col ul li a:hover {
      color: var(--accent-green);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 13px;
      color: #475569;
    }
    .footer-bottom a {
      color: #64748B;
    }
    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 响应式断点规则 */
    @media (max-width: 1024px) {
      .hero-grid, .matrix-layout, .engine-grid, .cta-container {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .feature-grid-6, .league-grid-3, .story-grid-3, .wall-grid-6, .news-grid-3, .plans-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid-4, .metrics-bar, .footer-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-h1 {
        font-size: 38px;
      }
    }
    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        padding: 24px;
        box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-light);
      }
      .nav-menu.show {
        display: flex;
      }
      .mobile-toggle {
        display: block;
      }
      .feature-grid-6, .league-grid-3, .scenario-grid-4, .story-grid-3, .wall-grid-6, .news-grid-3, .plans-grid-3, .metrics-bar, .spec-sheet-list, .footer-grid-4 {
        grid-template-columns: 1fr;
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid var(--border-light);
        padding-bottom: 16px;
      }
      .metric-item:last-child {
        border-bottom: none;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .cta-container {
        padding: 36px 20px;
      }
      .top-meta-bar {
        display: none;
      }
    }