/* roulang page: index */
:root {
      --primary: #0E8345;
      --primary-light: #10B981;
      --primary-dark: #09592f;
      --primary-bg: #F0FDF4;
      --accent: #F59E0B;
      --accent-hover: #D97706;
      --dark-slate: #0F2F38;
      --dark-navy: #0B191E;
      --body-bg: #F8FAFC;
      --card-bg: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
      --shadow-lg: 0 10px 25px -3px rgba(14, 131, 69, 0.12), 0 4px 6px -2px rgba(0,0,0,0.05);
      --transition: all 0.25s ease-in-out;
    }

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Heiti SC", sans-serif;
      background-color: var(--body-bg);
      color: var(--text-main);
      line-height: 1.68;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input, select, textarea {
      font: inherit;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部信息条 */
    .top-bar {
      background-color: var(--dark-slate);
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #A7F3D0;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary-light);
      box-shadow: 0 0 8px var(--primary-light);
    }
    .top-bar-info {
      display: flex;
      gap: 20px;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 20px;
      color: var(--dark-slate);
      letter-spacing: -0.5px;
    }
    .brand-logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 900;
      font-size: 20px;
      box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 26px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 4px;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: var(--transition);
      transform: translateX(-50%);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 移动端菜单切换 */
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 16px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 50px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(14, 131, 69, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      box-shadow: 0 6px 20px rgba(14, 131, 69, 0.35);
      transform: translateY(-1px);
    }
    .btn-accent {
      background: linear-gradient(135deg, var(--accent), var(--accent-hover));
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
    }
    .btn-accent:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-bg);
    }
    .btn-white {
      background: #FFFFFF;
      color: var(--primary-dark);
      box-shadow: var(--shadow-md);
    }
    .btn-white:hover {
      background: #F8FAFC;
      color: var(--primary);
      transform: translateY(-1px);
    }

    /* 基础板块包装 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background-color: #FFFFFF;
    }
    .section-wrap.green-tint {
      background-color: var(--primary-bg);
    }
    .section-wrap.dark-theme {
      background-color: var(--dark-navy);
      color: #FFFFFF;
    }

    .section-head {
      margin-bottom: 48px;
    }
    .section-head.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
      background-color: rgba(16, 185, 129, 0.12);
      color: var(--primary);
    }
    .section-head.dark-theme .section-tag {
      background-color: rgba(16, 185, 129, 0.2);
      color: #6EE7B7;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      color: var(--dark-slate);
      margin-bottom: 16px;
    }
    .section-head.dark-theme .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-head.dark-theme .section-desc {
      color: #94A3B8;
    }

    /* 板块 1：Hero 对比选型与推荐档高亮卡片前置 */
    .hero-section {
      padding: 70px 0 80px;
      background: radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.08) 0%, rgba(248, 250, 252, 0) 60%),
                  radial-gradient(circle at 90% 80%, rgba(14, 131, 69, 0.05) 0%, rgba(248, 250, 252, 0) 50%);
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.22;
      color: var(--dark-slate);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 28px;
    }
    .hero-points {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 32px;
    }
    .point-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 15px;
      font-weight: 600;
      color: var(--dark-slate);
    }
    .point-icon {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background-color: var(--primary-bg);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 900;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
    }

    /* Hero 右侧对比高亮卡片 */
    .compare-selection-box {
      background: #FFFFFF;
      border: 2px solid var(--primary);
      border-radius: var(--radius-xl);
      padding: 30px;
      box-shadow: 0 16px 36px rgba(14, 131, 69, 0.15);
      position: relative;
    }
    .recom-badge {
      position: absolute;
      top: -14px;
      right: 28px;
      background: linear-gradient(135deg, var(--accent), var(--accent-hover));
      color: #FFFFFF;
      font-size: 13px;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 20px;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
    }
    .box-header {
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 18px;
      margin-bottom: 20px;
    }
    .box-title {
      font-size: 22px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 6px;
    }
    .box-desc {
      font-size: 14px;
      color: var(--text-muted);
    }
    .compare-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 22px;
    }
    .metric-chip {
      background-color: var(--primary-bg);
      padding: 12px 14px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(16, 185, 129, 0.2);
    }
    .metric-chip .val {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
    }
    .metric-chip .label {
      font-size: 12px;
      color: var(--text-muted);
    }
    .recom-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 24px;
      font-size: 14px;
      color: var(--text-main);
    }
    .recom-checklist li {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .recom-checklist li::before {
      content: '✓';
      color: var(--primary);
      font-weight: bold;
    }

    /* 板块 2：服务亮点 (三列高对比卖点卡) */
    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .highlight-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 32px 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .highlight-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--primary-light));
      opacity: 0;
      transition: var(--transition);
    }
    .highlight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(16, 185, 129, 0.3);
    }
    .highlight-card:hover::before {
      opacity: 1;
    }
    .hl-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background-color: var(--primary-bg);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
    }
    .hl-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 12px;
    }
    .hl-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 3：痛点映射与时空架构 */
    .pain-solution-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .pain-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px 20px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .pain-status {
      font-size: 12px;
      font-weight: 700;
      color: #EF4444;
      background: #FEF2F2;
      padding: 3px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
      width: fit-content;
    }
    .pain-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 8px;
    }
    .pain-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .sol-wrap {
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }
    .sol-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
      display: block;
    }
    .sol-desc {
      font-size: 13px;
      color: var(--text-main);
      line-height: 1.5;
    }

    /* 板块 4：时段卡 / 课表网格与智能调度节奏 */
    .schedule-board-card {
      background: #FFFFFF;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 30px;
      overflow-x: auto;
    }
    .schedule-header-row {
      display: grid;
      grid-template-columns: 140px repeat(5, 1fr);
      gap: 10px;
      background-color: var(--dark-slate);
      color: #FFFFFF;
      padding: 14px 16px;
      border-radius: var(--radius-md);
      font-weight: 700;
      font-size: 14px;
      text-align: center;
      margin-bottom: 12px;
      min-width: 760px;
    }
    .schedule-row {
      display: grid;
      grid-template-columns: 140px repeat(5, 1fr);
      gap: 10px;
      margin-bottom: 10px;
      min-width: 760px;
    }
    .slot-label {
      background: var(--body-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      font-size: 13px;
      font-weight: 700;
      color: var(--dark-slate);
      padding: 10px 8px;
    }
    .slot-label small {
      font-size: 11px;
      color: var(--text-muted);
      font-weight: normal;
    }
    .slot-cell {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 12px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 78px;
      transition: var(--transition);
    }
    .slot-cell.active-track {
      background: #ECFDF5;
      border-color: #6EE7B7;
    }
    .slot-cell.active-gym {
      background: #FFFBEB;
      border-color: #FCD34D;
    }
    .slot-cell.active-pool {
      background: #EFF6FF;
      border-color: #93C5FD;
    }
    .slot-cell:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .slot-name {
      font-weight: 700;
      color: var(--dark-slate);
    }
    .slot-meta {
      color: var(--text-muted);
      font-size: 11px;
    }
    .slot-badge {
      display: inline-block;
      font-size: 10px;
      padding: 2px 6px;
      border-radius: 4px;
      background: rgba(0,0,0,0.06);
      width: fit-content;
      margin-top: 4px;
    }

    /* 板块 5：六大核心功能矩阵 (3x2) */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .feature-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .feature-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-light);
    }
    .feature-num {
      font-size: 13px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
      letter-spacing: 1px;
    }
    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.68;
    }

    /* 板块 6：深色算法引擎与智能排课理念区 */
    .engine-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .engine-step-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 28px 22px;
      position: relative;
    }
    .engine-step-card::after {
      content: '→';
      position: absolute;
      right: -14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--primary-light);
      font-size: 20px;
      font-weight: 900;
    }
    .engine-step-card:last-child::after {
      display: none;
    }
    .step-index {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary-light);
      margin-bottom: 12px;
      opacity: 0.8;
    }
    .step-name {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .step-desc {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.65;
    }

    /* 板块 7：报价阶梯与版本产品矩阵 */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
      align-items: stretch;
    }
    .tier-card {
      background: #FFFFFF;
      border-radius: var(--radius-xl);
      padding: 36px 30px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .tier-card.highlight {
      border: 2px solid var(--primary);
      box-shadow: 0 12px 30px rgba(14, 131, 69, 0.15);
      transform: scale(1.02);
      z-index: 2;
    }
    .tier-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 20px;
    }
    .tier-name {
      font-size: 22px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 8px;
    }
    .tier-sub {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .tier-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 30px;
      font-size: 14px;
      color: var(--text-main);
    }
    .tier-feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .tier-feature-list li::before {
      content: '✓';
      color: var(--primary);
      font-weight: 800;
    }
    .tier-feature-list li.dimmed {
      color: #94A3B8;
    }
    .tier-feature-list li.dimmed::before {
      content: '–';
      color: #CBD5E1;
    }

    /* 板块 8：关键业务成效与核心数据统计条 */
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #FFFFFF;
      padding: 36px 40px;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .metric-col {
      text-align: center;
      border-right: 1px solid var(--border-color);
      padding: 0 10px;
    }
    .metric-col:last-child {
      border-right: none;
    }
    .metric-number {
      font-size: 40px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: inherit;
    }
    .metric-label {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 4px;
    }
    .metric-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 9：教研专家与技术顾问团队 */
    .experts-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .expert-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .expert-avatar-wrap {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: var(--primary-bg);
      border: 3px solid #FFFFFF;
      box-shadow: var(--shadow-md);
      margin: 0 auto 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      color: var(--primary);
      font-weight: 800;
    }
    .expert-name {
      font-size: 18px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 4px;
    }
    .expert-role {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .expert-intro {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 10：标杆案例深度故事 */
    .cases-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .case-card {
      background: #FFFFFF;
      border-radius: var(--radius-xl);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .case-img-box {
      width: 100%;
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .case-card:hover .case-img-box img {
      transform: scale(1.04);
    }
    .case-body {
      padding: 26px 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .case-tag {
      font-size: 12px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
      display: block;
    }
    .case-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 12px;
    }
    .case-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .case-result-badge {
      background: var(--primary-bg);
      border-left: 3px solid var(--primary);
      padding: 8px 12px;
      font-size: 13px;
      color: var(--primary-dark);
      font-weight: 600;
    }

    /* 板块 11：多角色评价与保障体系 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-bubble {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.75;
      margin-bottom: 20px;
      position: relative;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }
    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--dark-slate);
    }
    .author-meta h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark-slate);
    }
    .author-meta p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 12：校园体育教改资讯与知识库 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .news-img {
      height: 180px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-date {
      font-size: 12px;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
    }

    /* 板块 13：预约表单与转化收口 */
    .form-cta-container {
      background: linear-gradient(135deg, var(--dark-slate) 0%, var(--dark-navy) 100%);
      border-radius: var(--radius-xl);
      padding: 50px 40px;
      color: #FFFFFF;
      box-shadow: 0 20px 40px rgba(11, 25, 30, 0.4);
    }
    .form-cta-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .form-cta-title {
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .form-cta-desc {
      font-size: 15px;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .form-guarantee {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
      color: #CBD5E1;
    }
    .form-guarantee span::before {
      content: '●';
      color: var(--primary-light);
      margin-right: 8px;
    }
    .booking-form {
      background: #FFFFFF;
      padding: 30px;
      border-radius: var(--radius-lg);
      color: var(--text-main);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--dark-slate);
      margin-bottom: 6px;
    }
    .form-input, .form-select {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }
    .form-submit-btn {
      width: 100%;
      padding: 13px;
      font-size: 16px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      margin-top: 8px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #061014;
      color: #94A3B8;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255,255,255,0.06);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand span {
      color: var(--primary-light);
    }
    .footer-intro {
      font-size: 13px;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 20px;
    }
    .footer-title {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--primary-light);
    }
    .footer-contact-item {
      font-size: 13px;
      line-height: 1.8;
      color: #94A3B8;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
      color: #64748B;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .highlights-grid,
      .features-grid,
      .tier-grid,
      .experts-grid,
      .news-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .engine-grid,
      .pain-solution-grid,
      .metrics-bar-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .engine-step-card::after {
        display: none;
      }
      .metric-col {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 0;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .form-cta-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .top-bar {
        display: none;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .highlights-grid,
      .features-grid,
      .tier-grid,
      .experts-grid,
      .news-grid,
      .reviews-grid,
      .cases-grid,
      .pain-solution-grid,
      .engine-grid,
      .metrics-bar-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-wrap {
        padding: 50px 0;
      }
      .form-cta-container {
        padding: 30px 20px;
      }
    }