/* roulang page: index */
:root {
      --bg-dark: #0D1117;
      --bg-card-dark: #161B22;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --primary: #00E599;
      --primary-hover: #00c784;
      --primary-glow: rgba(0, 229, 153, 0.25);
      --secondary: #00B4D8;
      --accent: #7928CA;
      --danger: #FF4757;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #F1F5F9;
      --text-sub: #94A3B8;
      --border-dark: rgba(255, 255, 255, 0.08);
      --border-light: rgba(226, 232, 240, 0.85);
      --shadow-sm: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 14px 40px -10px rgba(0, 0, 0, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

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

    body {
      font-family: var(--font-stack);
      line-height: 1.75;
      background-color: var(--bg-light);
      color: var(--text-main);
      overflow-x: hidden;
      letter-spacing: -0.01em;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(13, 17, 23, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-dark);
    }

    .top-meta-bar {
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
      color: var(--text-sub);
      padding: 8px 0;
    }

    .top-meta-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .top-meta-links {
      display: flex;
      gap: 20px;
    }

    .top-meta-links span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .badge-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 8px var(--primary);
    }

    .main-nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 0;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-symbol {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #041014;
      font-weight: 900;
      font-size: 20px;
      box-shadow: 0 0 15px var(--primary-glow);
    }

    .brand-name {
      color: var(--text-light);
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.02em;
    }

    .brand-name span {
      color: var(--primary);
      font-weight: 400;
      font-size: 14px;
      margin-left: 6px;
      padding: 2px 6px;
      background: rgba(0, 229, 153, 0.12);
      border-radius: 4px;
      border: 1px solid rgba(0, 229, 153, 0.3);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }

    .nav-link {
      color: #cbd5e1;
      font-size: 15px;
      font-weight: 500;
      transition: color 0.2s ease;
      position: relative;
    }

    .nav-link:hover {
      color: var(--primary);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: 50px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: var(--primary);
      color: #07171B;
      box-shadow: 0 4px 14px var(--primary-glow);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 229, 153, 0.4);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: var(--text-light);
      border-color: rgba(255, 255, 255, 0.15);
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: rgba(255, 255, 255, 0.3);
      color: #ffffff;
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 24px;
      cursor: pointer;
    }

    /* 模块通用样式与版式节奏 */
    section {
      padding: 85px 0;
      position: relative;
    }

    .section-dark {
      background-color: var(--bg-dark);
      color: var(--text-light);
    }

    .section-light {
      background-color: var(--bg-light);
      color: var(--text-main);
    }

    .section-pure {
      background-color: var(--bg-white);
      color: var(--text-main);
      border-top: 1px solid rgba(226, 232, 240, 0.7);
      border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    }

    .section-head {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      padding: 5px 14px;
      border-radius: 30px;
      margin-bottom: 14px;
      letter-spacing: 0.05em;
    }

    .tag-green {
      background: rgba(0, 229, 153, 0.15);
      color: #00ba78;
      border: 1px solid rgba(0, 229, 153, 0.3);
    }

    .tag-blue {
      background: rgba(0, 180, 216, 0.12);
      color: #0093b1;
      border: 1px solid rgba(0, 180, 216, 0.25);
    }

    .tag-dark-green {
      background: rgba(0, 229, 153, 0.12);
      color: var(--primary);
      border: 1px solid rgba(0, 229, 153, 0.35);
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-muted);
    }

    .section-dark .section-desc {
      color: var(--text-sub);
    }

    /* 1. 首屏全宽视频官网 Hero (#hero-carousel) */
    .hero-section {
      padding: 120px 0 100px 0;
      background: radial-gradient(circle at 50% 20%, #1a2332 0%, #0d1117 75%);
      position: relative;
      overflow: hidden;
      color: #fff;
    }

    .hero-bg-overlay {
      position: absolute;
      inset: 0;
      background: url('/assets/images/3abd1e4ce41b2b9a.webp') center center / cover no-repeat;
      opacity: 0.18;
      mix-blend-mode: overlay;
    }

    .hero-content-wrap {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-status-pill {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(22, 27, 34, 0.85);
      border: 1px solid rgba(0, 229, 153, 0.4);
      padding: 6px 18px;
      border-radius: 40px;
      font-size: 13px;
      color: var(--text-light);
      margin-bottom: 24px;
      backdrop-filter: blur(8px);
    }

    .hero-title {
      font-size: 46px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 22px;
      background: linear-gradient(180deg, #FFFFFF 30%, #A5F3FC 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 17px;
      line-height: 1.85;
      color: #cbd5e1;
      margin: 0 auto 36px auto;
      max-width: 860px;
    }

    .hero-actions-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      margin-bottom: 45px;
    }

    .btn-play-trigger {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 12px 28px;
      border-radius: 50px;
      color: #fff;
      font-weight: 600;
      transition: all 0.3s ease;
    }

    .btn-play-trigger:hover {
      background: rgba(0, 229, 153, 0.1);
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-play-icon {
      width: 24px;
      height: 24px;
      background: var(--primary);
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #07171B;
      font-size: 10px;
    }

    .hero-stage-mockup {
      position: relative;
      background: #161B22;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 10px;
      box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6);
      max-width: 1060px;
      margin: 0 auto;
    }

    .hero-stage-img-box {
      position: relative;
      border-radius: 12px;
      overflow: hidden;
    }

    .hero-stage-img-box img {
      width: 100%;
      height: 480px;
      object-fit: cover;
    }

    .hud-overlay {
      position: absolute;
      top: 20px;
      left: 20px;
      background: rgba(13, 17, 23, 0.78);
      border: 1px solid rgba(0, 229, 153, 0.4);
      padding: 12px 18px;
      border-radius: 8px;
      color: #fff;
      font-family: monospace;
      font-size: 13px;
      backdrop-filter: blur(6px);
      text-align: left;
    }

    .hud-target-box {
      position: absolute;
      bottom: 25%;
      right: 32%;
      border: 2px solid var(--primary);
      background: rgba(0, 229, 153, 0.15);
      width: 130px;
      height: 180px;
      border-radius: 4px;
      pointer-events: none;
    }

    .hud-tag {
      background: var(--primary);
      color: #000;
      font-size: 10px;
      font-weight: 700;
      padding: 2px 6px;
      position: absolute;
      top: -20px;
      left: -2px;
      white-space: nowrap;
    }

    /* 2. 优惠阶梯与选型规格 (#pricing-tier) */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 40px;
    }

    .tier-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      position: relative;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .tier-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(0, 229, 153, 0.6);
    }

    .tier-card.popular {
      background: #FAFCFF;
      border: 2px solid #00B4D8;
    }

    .tier-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: #00B4D8;
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
    }

    .tier-head h3 {
      font-size: 22px;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .tier-cost {
      font-size: 34px;
      font-weight: 800;
      color: #0F172A;
      margin: 18px 0;
    }

    .tier-cost span {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 400;
    }

    .tier-features {
      list-style: none;
      margin: 24px 0;
      flex-grow: 1;
    }

    .tier-features li {
      padding: 10px 0;
      border-bottom: 1px dashed rgba(226, 232, 240, 0.8);
      font-size: 14px;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .tier-features li::before {
      content: "✓";
      color: #00ba78;
      font-weight: bold;
    }

    /* 3. 套餐对比矩阵 (#plan-comparison) */
    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      margin-top: 35px;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 720px;
    }

    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-light);
      font-size: 14px;
    }

    .compare-table th {
      background: #F8FAFC;
      color: #1E293B;
      font-weight: 700;
    }

    .compare-table tr:hover td {
      background: #F1F5F9;
    }

    /* 4. 限时预约与算力配额入口 (#quota-portal) */
    .quota-banner {
      background: linear-gradient(135deg, #091E28 0%, #161B22 100%);
      border: 1px solid rgba(0, 229, 153, 0.3);
      border-radius: var(--radius-lg);
      padding: 45px 50px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 30px;
      position: relative;
      overflow: hidden;
    }

    .quota-content h3 {
      font-size: 26px;
      color: #fff;
      margin-bottom: 12px;
    }

    .quota-content p {
      color: var(--text-sub);
      font-size: 15px;
      max-width: 680px;
      line-height: 1.7;
    }

    /* 5. 爆款清单与核心算法模块 (#featured-modules) */
    .module-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
      margin-top: 40px;
    }

    .module-item {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .module-item:hover {
      box-shadow: var(--shadow-lg);
      border-color: #00E599;
      transform: translateY(-4px);
    }

    .module-img-box {
      height: 200px;
      position: relative;
      overflow: hidden;
      background: #0D1117;
    }

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

    .module-item:hover .module-img-box img {
      transform: scale(1.05);
    }

    .module-chip {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(13, 17, 23, 0.85);
      border: 1px solid rgba(0, 229, 153, 0.5);
      color: var(--primary);
      font-size: 11px;
      padding: 3px 10px;
      border-radius: 20px;
    }

    .module-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .module-body h4 {
      font-size: 18px;
      font-weight: 700;
      color: #0F172A;
      margin-bottom: 10px;
    }

    .module-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .module-meta-bar {
      border-top: 1px solid #F1F5F9;
      padding-top: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748B;
    }

    /* 6. 裁判与教练评价墙 (#testimonials-wall) */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 40px;
    }

    .review-card {
      background: #161B22;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
    }

    .review-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }

    .review-quote {
      font-size: 14px;
      line-height: 1.8;
      color: #E2E8F0;
      margin-bottom: 20px;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #2D3748;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      border: 1px solid var(--border-dark);
    }

    .reviewer-info h5 {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
    }

    .reviewer-info span {
      font-size: 12px;
      color: var(--text-sub);
    }

    /* 7. 保障图标条与技术合规背书 (#trust-badges) */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .guarantee-item {
      display: flex;
      align-items: flex-start;
      gap: 15px;
    }

    .guarantee-icon {
      width: 48px;
      height: 48px;
      background: rgba(0, 229, 153, 0.1);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #00ba78;
      font-size: 20px;
      flex-shrink: 0;
    }

    .guarantee-text h4 {
      font-size: 16px;
      font-weight: 700;
      color: #0F172A;
      margin-bottom: 4px;
    }

    .guarantee-text p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 8. 赛事分析与动作捕捉痛点洞察 (#pain-points) */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .pain-card {
      background: #FFFFFF;
      border-top: 4px solid var(--danger);
      border-radius: var(--radius-sm);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      border-left: 1px solid var(--border-light);
      border-right: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .pain-card h4 {
      font-size: 16px;
      color: #0F172A;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pain-badge {
      background: rgba(255, 71, 87, 0.12);
      color: var(--danger);
      font-size: 11px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
    }

    .pain-card p {
      font-size: 13px;
      color: #64748B;
      line-height: 1.65;
    }

    /* 9. 平台架构与核心技术指标 (#platform-overview) */
    .arch-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      margin-top: 35px;
    }

    .arch-visual {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
    }

    .arch-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .arch-visual-badge {
      position: absolute;
      bottom: 16px;
      left: 16px;
      right: 16px;
      background: rgba(13, 17, 23, 0.88);
      border: 1px solid rgba(0, 229, 153, 0.4);
      padding: 12px 18px;
      border-radius: 8px;
      font-size: 13px;
      color: #F1F5F9;
      backdrop-filter: blur(8px);
    }

    .arch-specs {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .spec-item {
      background: #161B22;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 20px 24px;
      border-left: 3px solid var(--primary);
    }

    .spec-item h4 {
      color: #fff;
      font-size: 16px;
      margin-bottom: 6px;
      display: flex;
      justify-content: space-between;
    }

    .spec-item span {
      color: var(--primary);
      font-family: monospace;
      font-size: 13px;
    }

    .spec-item p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 10. 典型运动场景落地展示 (#customer-stories) */
    .story-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 40px;
    }

    .story-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .story-thumb {
      height: 200px;
      overflow: hidden;
    }

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

    .story-card:hover .story-thumb img {
      transform: scale(1.04);
    }

    .story-content {
      padding: 22px;
    }

    .story-type {
      font-size: 12px;
      color: #0093b1;
      font-weight: 700;
      margin-bottom: 6px;
      display: inline-block;
    }

    .story-content h4 {
      font-size: 17px;
      color: #0F172A;
      margin-bottom: 10px;
    }

    .story-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 11. 关键技术能力与性能指标数据条 (#performance-metrics) */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 20px;
    }

    .metric-box {
      text-align: center;
      padding: 30px 20px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
    }

    .metric-number {
      font-size: 42px;
      font-weight: 900;
      color: var(--primary);
      font-family: monospace;
      line-height: 1.1;
      margin-bottom: 10px;
    }

    .metric-label {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .metric-detail {
      color: var(--text-sub);
      font-size: 12px;
      line-height: 1.5;
    }

    /* 12. 视觉资讯与前沿动态 (#tech-insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
      margin-top: 40px;
    }

    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }

    .news-thumb {
      height: 180px;
    }

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

    .news-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .news-meta {
      font-size: 12px;
      color: #94A3B8;
      margin-bottom: 10px;
      display: flex;
      gap: 12px;
    }

    .news-body h4 {
      font-size: 17px;
      color: #0F172A;
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .news-link {
      font-size: 13px;
      color: #008f5d;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 13. 加购引导与接入预约收口行动区 (#cta-action) */
    .cta-box {
      background: radial-gradient(circle at 80% 20%, #1e3a34 0%, #0d1117 70%);
      border: 1px solid rgba(0, 229, 153, 0.4);
      border-radius: var(--radius-lg);
      padding: 55px;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 45px;
      align-items: center;
      position: relative;
      overflow: hidden;
    }

    .cta-text h3 {
      font-size: 32px;
      color: #FFFFFF;
      margin-bottom: 16px;
      font-weight: 800;
    }

    .cta-text p {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .cta-features-inline {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 13px;
      color: var(--primary);
    }

    .cta-features-inline span {
      background: rgba(0, 229, 153, 0.12);
      border: 1px solid rgba(0, 229, 153, 0.3);
      padding: 4px 12px;
      border-radius: 20px;
    }

    .lead-form {
      background: rgba(22, 27, 34, 0.95);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 30px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      color: #E2E8F0;
      font-size: 13px;
      margin-bottom: 6px;
      font-weight: 500;
    }

    .form-control {
      width: 100%;
      background: #0D1117;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 6px;
      padding: 10px 14px;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 229, 153, 0.15);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .form-submit-btn {
      width: 100%;
      padding: 12px;
      border-radius: 6px;
      background: var(--primary);
      color: #07171B;
      font-size: 15px;
      font-weight: 700;
      border: none;
      cursor: pointer;
      transition: background 0.2s, transform 0.15s;
      margin-top: 8px;
    }

    .form-submit-btn:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    /* 页脚 */
    .site-footer {
      background: #090D12;
      color: #94A3B8;
      border-top: 1px solid var(--border-dark);
      padding: 60px 0 30px 0;
      font-size: 13px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h5 {
      color: #F1F5F9;
      font-size: 15px;
      margin-bottom: 18px;
      font-weight: 600;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

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

    .footer-contact-info p {
      margin-bottom: 8px;
      line-height: 1.6;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
    }

    /* 移动端响应式断点 */
    @media (max-width: 1024px) {
      .tier-grid, .module-grid, .review-grid, .story-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-bar, .metric-grid, .pain-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-wrapper, .cta-box {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 55px 0;
      }
      .hero-title {
        font-size: 32px;
      }
      .hero-lead {
        font-size: 15px;
      }
      .hero-stage-img-box img {
        height: 280px;
      }
      .top-meta-bar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #0D1117;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-dark);
      }
      .nav-menu.active {
        display: flex;
      }
      .tier-grid, .module-grid, .review-grid, .story-grid, .news-grid, .guarantee-bar, .metric-grid, .pain-grid {
        grid-template-columns: 1fr;
      }
      .quota-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 30px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-box {
        padding: 30px 20px;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
    }