/* roulang page: index */
:root {
      --bg-deep: #060B18;
      --bg-dark: #0B132B;
      --bg-card: rgba(16, 26, 54, 0.72);
      --border-card: rgba(0, 210, 255, 0.18);
      --primary-blue: #0066FF;
      --cyan-light: #00D2FF;
      --neon-green: #00F5A0;
      --text-main: #FFFFFF;
      --text-muted: #9BB0D3;
      --text-dim: #647B9B;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      --shadow-glow: 0 0 24px rgba(0, 210, 255, 0.28);
    }

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

    body {
      background-color: var(--bg-deep);
      background-image: 
        radial-gradient(circle at 15% 15%, rgba(0, 102, 255, 0.15) 0%, transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(0, 245, 160, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, #060B18 0%, #0B132B 100%);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      min-height: 100vh;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1220px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部微通知条 */
    .top-bar {
      background: rgba(6, 11, 24, 0.95);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 13px;
      color: var(--text-muted);
      padding: 7px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-badges {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .top-bar-badges span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .dot-pulse {
      width: 7px;
      height: 7px;
      background: var(--neon-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--neon-green);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    /* 粘性主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 19, 43, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 210, 255, 0.15);
      transition: var(--transition);
    }
    .nav-container {
      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: 700;
      letter-spacing: 0.5px;
      color: #FFFFFF;
    }
    .brand-logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary-blue), var(--cyan-light));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 16px rgba(0, 102, 255, 0.4);
    }
    .brand-logo-icon svg {
      width: 22px;
      height: 22px;
      fill: #ffffff;
    }
    .main-nav {
      display: flex;
      gap: 26px;
      align-items: center;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--cyan-light);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--cyan-light), var(--neon-green));
      transition: var(--transition);
      border-radius: var(--radius-full);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(135deg, #0066FF, #00D2FF);
      color: #060B18;
      font-weight: 700;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-glow);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 28px rgba(0, 210, 255, 0.6);
      color: #060B18;
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 8px;
      border-radius: 6px;
      cursor: pointer;
      color: #fff;
    }
    .mobile-menu-toggle svg {
      width: 24px;
      height: 24px;
      display: block;
    }

    /* 通用板块与排版样式 */
    section {
      padding: 88px 0;
      position: relative;
    }
    .section-alt {
      background: rgba(11, 19, 43, 0.55);
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px auto;
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      background: rgba(0, 210, 255, 0.12);
      border: 1px solid rgba(0, 210, 255, 0.3);
      color: var(--cyan-light);
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .badge-pill.green {
      background: rgba(0, 245, 160, 0.12);
      border-color: rgba(0, 245, 160, 0.35);
      color: var(--neon-green);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.35;
      color: #FFFFFF;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 玻璃卡片基类 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      transition: var(--transition);
      overflow: hidden;
      position: relative;
    }
    .glass-card:hover {
      border-color: rgba(0, 210, 255, 0.4);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35), 0 0 20px rgba(0, 210, 255, 0.15);
      transform: translateY(-4px);
    }

    /* 1. Hero 创作者/名师领衔主视觉看板 */
    .hero-section {
      padding: 50px 0 80px 0;
      position: relative;
      overflow: hidden;
    }
    .hero-banner-card {
      background: linear-gradient(180deg, rgba(16, 26, 54, 0.88) 0%, rgba(6, 11, 24, 0.95) 100%);
      border: 1px solid rgba(0, 210, 255, 0.25);
      border-radius: var(--radius-lg);
      padding: 48px;
      position: relative;
      overflow: hidden;
      box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    }
    .hero-banner-card::before {
      content: '';
      position: absolute;
      top: -20%;
      right: -10%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(0, 102, 255, 0.22) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-creator-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      padding-bottom: 32px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 36px;
    }
    .creator-profile {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .creator-avatar {
      width: 76px;
      height: 76px;
      border-radius: 50%;
      border: 2px solid var(--cyan-light);
      padding: 3px;
      background: rgba(0, 210, 255, 0.15);
      object-fit: cover;
      box-shadow: 0 0 20px rgba(0, 210, 255, 0.3);
    }
    .creator-meta h2 {
      font-size: 22px;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .creator-v-tag {
      background: rgba(0, 245, 160, 0.15);
      color: var(--neon-green);
      font-size: 12px;
      padding: 2px 10px;
      border-radius: 9999px;
      border: 1px solid rgba(0, 245, 160, 0.35);
      font-weight: 600;
    }
    .creator-meta p {
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .hero-action-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      background: linear-gradient(135deg, #0066FF, #00D2FF);
      color: #060B18;
      font-size: 15px;
      font-weight: 700;
      padding: 13px 30px;
      border-radius: var(--radius-md);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: var(--shadow-glow);
      border: none;
      cursor: pointer;
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 32px rgba(0, 210, 255, 0.7);
      color: #060B18;
    }
    .btn-outline {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(0, 210, 255, 0.3);
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      padding: 13px 26px;
      border-radius: var(--radius-md);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-outline:hover {
      background: rgba(0, 210, 255, 0.12);
      border-color: var(--cyan-light);
      color: var(--cyan-light);
    }
    .hero-body-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.95fr;
      gap: 40px;
      align-items: center;
    }
    .hero-title-main {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #FFFFFF 30%, #A2C8FF 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc-lead {
      font-size: 16px;
      line-height: 1.85;
      color: var(--text-muted);
      margin-bottom: 28px;
    }
    .hero-live-monitor {
      background: rgba(6, 11, 24, 0.8);
      border: 1px solid rgba(0, 210, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.4);
    }
    .monitor-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--cyan-light);
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 18px;
      padding-bottom: 10px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .metric-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
      font-size: 14px;
    }
    .metric-row:last-child {
      margin-bottom: 0;
    }
    .metric-name {
      color: var(--text-muted);
    }
    .metric-val {
      font-weight: 700;
      color: #fff;
    }
    .metric-progress {
      width: 100%;
      height: 6px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 9999px;
      margin-top: 6px;
      overflow: hidden;
    }
    .metric-bar {
      height: 100%;
      border-radius: 9999px;
      background: linear-gradient(90deg, var(--primary-blue), var(--neon-green));
    }

    /* 2. 双栏架构：左侧高能资讯动态流 vs 右侧热榜与矩阵入口 */
    .stream-rank-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr;
      gap: 36px;
    }
    .news-stream-card {
      display: flex;
      gap: 20px;
      padding: 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }
    .news-stream-card:hover {
      background: rgba(255, 255, 255, 0.03);
    }
    .news-thumb {
      width: 150px;
      height: 100px;
      border-radius: 8px;
      object-fit: cover;
      flex-shrink: 0;
      border: 1px solid rgba(0, 210, 255, 0.15);
    }
    .news-content h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #fff;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 8px;
    }
    .news-meta-row {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 12px;
      color: var(--text-dim);
    }
    .rank-list-box {
      padding: 24px;
    }
    .rank-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .rank-num {
      width: 28px;
      height: 28px;
      border-radius: 6px;
      background: rgba(255, 255, 255, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 14px;
      color: var(--text-muted);
    }
    .rank-item:nth-child(1) .rank-num {
      background: rgba(255, 215, 0, 0.2);
      color: #FFD700;
      border: 1px solid rgba(255, 215, 0, 0.4);
    }
    .rank-item:nth-child(2) .rank-num {
      background: rgba(0, 210, 255, 0.2);
      color: var(--cyan-light);
      border: 1px solid rgba(0, 210, 255, 0.4);
    }
    .rank-item:nth-child(3) .rank-num {
      background: rgba(0, 245, 160, 0.2);
      color: var(--neon-green);
      border: 1px solid rgba(0, 245, 160, 0.4);
    }
    .rank-detail h4 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
    }
    .rank-detail p {
      font-size: 12px;
      color: var(--text-dim);
      margin-top: 2px;
    }

    /* 3. 专题条（精选专项集锦） */
    .special-topic-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .strip-card {
      padding: 24px;
      text-align: left;
      border-left: 3px solid var(--cyan-light);
    }
    .strip-icon {
      font-size: 26px;
      margin-bottom: 12px;
    }
    .strip-card h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #fff;
    }
    .strip-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 体适能与专项服务矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .service-card-body {
      padding: 28px;
    }
    .service-media-wrap {
      position: relative;
      height: 190px;
      overflow: hidden;
      border-top-left-radius: var(--radius-md);
      border-top-right-radius: var(--radius-md);
    }
    .service-media-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .glass-card:hover .service-media-wrap img {
      transform: scale(1.06);
    }
    .service-tag-float {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(6, 11, 24, 0.8);
      backdrop-filter: blur(8px);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      font-size: 12px;
      font-weight: 600;
      color: var(--neon-green);
      border: 1px solid rgba(0, 245, 160, 0.4);
    }
    .service-card-body h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }
    .service-card-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .service-pill-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }
    .pill-item {
      font-size: 12px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 4px 10px;
      border-radius: var(--radius-full);
      color: var(--text-muted);
    }

    /* 5. 平台硬核实力与资质认证 */
    .credentials-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .cred-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 24px;
    }
    .cred-item {
      display: flex;
      gap: 16px;
      background: rgba(255, 255, 255, 0.03);
      padding: 18px 22px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.06);
    }
    .cred-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(0, 210, 255, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--cyan-light);
      font-weight: 800;
    }
    .cred-text h4 {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 4px;
    }
    .cred-text p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .cred-banner-box {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(0, 210, 255, 0.2);
    }
    .cred-banner-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .cred-banner-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(6, 11, 24, 0.88);
      backdrop-filter: blur(12px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(0, 245, 160, 0.3);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 6. 科学训练 vs 粗放传统对比看板 */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .compare-card {
      padding: 36px;
      border-radius: var(--radius-md);
    }
    .compare-card.traditional {
      background: rgba(20, 25, 40, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .compare-card.digital {
      background: linear-gradient(180deg, rgba(0, 102, 255, 0.15) 0%, rgba(16, 26, 54, 0.7) 100%);
      border: 1px solid rgba(0, 210, 255, 0.35);
      box-shadow: 0 0 30px rgba(0, 102, 255, 0.15);
    }
    .compare-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 22px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .compare-list li {
      font-size: 14px;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      line-height: 1.6;
    }
    .compare-list.traditional li {
      color: var(--text-dim);
    }
    .compare-list.digital li {
      color: #E2E8F0;
    }
    .check-icon {
      color: var(--neon-green);
      font-weight: bold;
    }
    .cross-icon {
      color: #FF5A5F;
      font-weight: bold;
    }

    /* 7. 核心研发与科技优势（6宫格） */
    .strength-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .strength-card {
      padding: 30px;
    }
    .strength-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(0, 102, 255, 0.25), rgba(0, 210, 255, 0.1));
      border: 1px solid rgba(0, 210, 255, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--cyan-light);
      font-size: 20px;
    }
    .strength-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .strength-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 8. 热点青少年体育专题方案 */
    .programs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .program-card {
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .program-head {
      margin-bottom: 20px;
    }
    .program-head h3 {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 8px;
    }
    .program-stage-pill {
      display: inline-block;
      font-size: 12px;
      padding: 3px 10px;
      background: rgba(0, 245, 160, 0.12);
      color: var(--neon-green);
      border-radius: var(--radius-full);
      border: 1px solid rgba(0, 245, 160, 0.25);
    }
    .program-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .program-data-mini {
      background: rgba(6, 11, 24, 0.6);
      padding: 14px;
      border-radius: var(--radius-sm);
      margin-bottom: 24px;
      display: flex;
      justify-content: space-around;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }
    .program-data-mini div span {
      display: block;
      font-size: 11px;
      color: var(--text-dim);
    }
    .program-data-mini div strong {
      font-size: 16px;
      color: var(--cyan-light);
    }

    /* 9. 全景发展里程碑与安全保障体系 */
    .milestone-security-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .timeline-wrap {
      position: relative;
      padding-left: 32px;
      border-left: 2px dashed rgba(0, 210, 255, 0.3);
    }
    .timeline-node {
      position: relative;
      margin-bottom: 34px;
    }
    .timeline-node:last-child {
      margin-bottom: 0;
    }
    .timeline-dot {
      position: absolute;
      left: -40px;
      top: 4px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--cyan-light);
      box-shadow: 0 0 12px var(--cyan-light);
      border: 3px solid #060B18;
    }
    .timeline-node h4 {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }
    .timeline-node p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .security-box {
      padding: 36px;
      background: radial-gradient(circle at top left, rgba(0, 102, 255, 0.2), rgba(16, 26, 54, 0.8));
    }
    .security-box h3 {
      font-size: 22px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .security-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 20px;
    }

    /* 10. 量化运营与体能数据统计条 */
    .metric-strip-section {
      background: linear-gradient(90deg, #060B18 0%, #101A36 50%, #060B18 100%);
      border-top: 1px solid rgba(0, 210, 255, 0.2);
      border-bottom: 1px solid rgba(0, 210, 255, 0.2);
      padding: 56px 0;
    }
    .counter-strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .counter-box .num {
      font-size: 44px;
      font-weight: 900;
      line-height: 1;
      margin-bottom: 8px;
      background: linear-gradient(135deg, #00D2FF 0%, #00F5A0 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -1px;
    }
    .counter-box .label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 11. 青少年学员成长故事与家长评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-stars {
      color: #FFB800;
      font-size: 14px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }
    .review-quote {
      font-size: 14px;
      color: #E2E8F0;
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .student-badge-data {
      background: rgba(0, 210, 255, 0.08);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      font-size: 12px;
      color: var(--cyan-light);
      margin-bottom: 20px;
      border: 1px solid rgba(0, 210, 255, 0.2);
    }
    .parent-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 16px;
    }
    .parent-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      object-fit: cover;
      border: 1px solid var(--cyan-light);
    }
    .parent-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
    }
    .parent-info span {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 12. 媒体合作与生态共建条 */
    .media-partner-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 18px;
      margin-top: 24px;
    }
    .partner-pill {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 10px 22px;
      border-radius: var(--radius-md);
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
      transition: var(--transition);
    }
    .partner-pill:hover {
      background: rgba(0, 210, 255, 0.12);
      border-color: rgba(0, 210, 255, 0.3);
      color: #fff;
    }

    /* 13. 青训常见解答（FAQ 手风琴） */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item[open] {
      border-color: rgba(0, 210, 255, 0.4);
      background: rgba(16, 26, 54, 0.85);
    }
    .faq-item summary {
      padding: 20px 26px;
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      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-icon-arrow {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      fill: var(--cyan-light);
    }
    .faq-item[open] .faq-icon-arrow {
      transform: rotate(180deg);
    }
    .faq-content {
      padding: 0 26px 22px 26px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      margin-top: 6px;
      padding-top: 16px;
    }

    /* 14. 转化签约与体测预约收口表单 */
    .conversion-section {
      padding: 96px 0;
      background: linear-gradient(180deg, #0B132B 0%, #060B18 100%);
    }
    .conversion-box {
      background: radial-gradient(circle at 80% 20%, rgba(0, 210, 255, 0.15), rgba(16, 26, 54, 0.95));
      border: 1px solid rgba(0, 210, 255, 0.3);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 50px;
      align-items: center;
      box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
    }
    .conversion-info h2 {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .conversion-info p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 26px;
    }
    .conversion-perks {
      display: flex;
      flex-direction: column;
      gap: 12px;
      list-style: none;
    }
    .conversion-perks li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #E2E8F0;
    }
    .appointment-form {
      background: rgba(6, 11, 24, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 32px;
      border-radius: var(--radius-md);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 6px;
    }
    .form-input, .form-select {
      width: 100%;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--cyan-light);
      box-shadow: 0 0 12px rgba(0, 210, 255, 0.3);
    }
    .form-select option {
      background: #0B132B;
      color: #fff;
    }
    .form-submit-btn {
      width: 100%;
      background: linear-gradient(135deg, #0066FF, #00F5A0);
      color: #060B18;
      font-size: 15px;
      font-weight: 800;
      padding: 14px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      margin-top: 8px;
      box-shadow: 0 0 20px rgba(0, 245, 160, 0.4);
    }
    .form-submit-btn:hover {
      box-shadow: 0 0 30px rgba(0, 245, 160, 0.7);
      transform: translateY(-2px);
    }
    .form-tip-small {
      font-size: 12px;
      color: var(--text-dim);
      text-align: center;
      margin-top: 12px;
    }

    /* 页脚 Footer */
    .site-footer {
      background: #040812;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 70px 0 30px 0;
      font-size: 14px;
    }
    .footer-main-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--cyan-light);
      padding-left: 4px;
    }
    .footer-desc-p {
      color: var(--text-muted);
      line-height: 1.8;
      font-size: 13px;
      margin-top: 12px;
    }
    .footer-contact-item {
      display: flex;
      gap: 10px;
      margin-bottom: 10px;
      color: var(--text-muted);
      font-size: 13px;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 26px;
      text-align: center;
      font-size: 13px;
      color: var(--text-dim);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }
    .footer-bottom-bar a {
      color: var(--text-dim);
    }
    .footer-bottom-bar a:hover {
      color: var(--text-muted);
    }

    /* 移动端响应式断点系统 */
    @media (max-width: 1024px) {
      .services-grid, .programs-grid, .strength-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .special-topic-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-main-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .main-nav {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #0B132B;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid rgba(0, 210, 255, 0.2);
        display: none;
      }
      .main-nav.active {
        display: flex;
      }
      .hero-body-grid,
      .stream-rank-grid,
      .credentials-wrap,
      .compare-container,
      .milestone-security-layout,
      .conversion-box {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .hero-banner-card {
        padding: 24px 20px;
      }
      .hero-title-main {
        font-size: 28px;
      }
      .section-title {
        font-size: 26px;
      }
      .services-grid, 
      .programs-grid, 
      .strength-grid, 
      .reviews-grid, 
      .special-topic-strip,
      .counter-strip-grid {
        grid-template-columns: 1fr;
      }
      .footer-main-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
      .conversion-box {
        padding: 28px 20px;
      }
    }