/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-hover: #0a3d8f;
      --accent-green: #10B981;
      --accent-orange: #F97316;
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-sub: #64748B;
      --border-color: #E2E8F0;
      --dark-section: #0B132B;
      --dark-card: #1C2541;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
      --container-max: 1200px;
      --transition: all 0.25s ease-in-out;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Lantinghei SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.75;
      -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: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部通栏条 */
    .top-bar {
      height: 36px;
      background-color: #081B38;
      color: #94A3B8;
      font-size: 13px;
      display: flex;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .top-bar-left span {
      margin-right: 20px;
    }
    .top-bar-right a:hover {
      color: #FFFFFF;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 12px rgba(15, 23, 42, 0.05);
      border-bottom: 1px solid var(--border-color);
      height: 72px;
      display: flex;
      align-items: center;
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .brand-logo-icon {
      width: 34px;
      height: 34px;
      background: var(--primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 900;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      background-color: var(--primary);
      color: #FFFFFF;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      border: 1px solid var(--primary);
    }
    .nav-cta:hover {
      background-color: var(--primary-hover);
      border-color: var(--primary-hover);
    }

    /* 移动端汉堡按钮 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 通用板块排版规范 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background-color: rgba(15, 82, 186, 0.08);
      padding: 4px 12px;
      border-radius: 30px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text-main);
      position: relative;
      padding-bottom: 14px;
      margin-bottom: 16px;
    }
    .section-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 50px;
      height: 3px;
      background-color: var(--primary);
      border-radius: 3px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 模块 1: Bento Hero 首屏 */
    .hero-section {
      padding: 50px 0 70px 0;
      background: linear-gradient(180deg, #EDF2F9 0%, var(--bg-page) 100%);
    }
    .bento-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      grid-template-rows: auto auto;
      gap: 24px;
    }
    .bento-main {
      grid-row: span 2;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 44px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }
    .bento-main::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 6px;
      height: 100%;
      background: var(--primary);
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }
    .hero-h1 span {
      color: var(--primary);
    }
    .hero-text {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      margin-bottom: 30px;
    }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 28px;
      background-color: var(--primary);
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid var(--primary);
      box-shadow: 0 4px 12px rgba(15, 82, 186, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      border-color: var(--primary-hover);
      transform: translateY(-2px);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 24px;
      background-color: #FFFFFF;
      color: var(--text-main);
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }
    .btn-secondary:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .hero-badges-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }
    .badge-item {
      display: flex;
      align-items: center;
      font-size: 13px;
      color: var(--text-sub);
      gap: 6px;
    }
    .badge-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background-color: var(--accent-green);
    }

    .bento-sub-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .bento-sub-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .bento-card-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .bento-card-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .bento-media-wrap {
      margin-top: 14px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
      height: 130px;
    }
    .bento-media-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 模块 2: 品牌与体系 (左右图文非对称) */
    .system-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .system-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .system-media img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .system-info-title {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 16px;
      line-height: 1.4;
    }
    .system-info-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .param-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .param-item {
      background: var(--bg-page);
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary);
    }
    .param-item strong {
      display: block;
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .param-item span {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 模块 3: 核心技术优势 (3列2行网格) */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .adv-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(15, 82, 186, 0.3);
    }
    .adv-icon {
      width: 48px;
      height: 48px;
      background: rgba(15, 82, 186, 0.08);
      color: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .adv-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .adv-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 模块 4: 热门核心模块产品 (3大卡) */
    .module-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .module-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .module-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .module-card-img {
      height: 190px;
      overflow: hidden;
    }
    .module-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .module-card:hover .module-card-img img {
      transform: scale(1.04);
    }
    .module-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .module-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .module-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .module-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }
    .tag-chip {
      background: #EFF6FF;
      color: var(--primary);
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
    }
    .module-btn {
      width: 100%;
      text-align: center;
      padding: 10px 0;
      background: #F1F5F9;
      color: var(--text-main);
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
    }
    .module-btn:hover {
      background: var(--primary);
      color: #FFFFFF;
    }

    /* 模块 5: 深色理念对比区 (深底断层) */
    .section-dark {
      background-color: var(--dark-section);
      color: #FFFFFF;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-top: 40px;
    }
    .compare-card {
      border-radius: var(--radius-md);
      padding: 34px;
    }
    .compare-card.old {
      background: rgba(255, 255, 255, 0.04);
      border: 1px dashed rgba(255, 255, 255, 0.15);
    }
    .compare-card.new {
      background: var(--dark-card);
      border: 1px solid rgba(16, 185, 129, 0.4);
      position: relative;
    }
    .compare-card.new::before {
      content: '校园体育软件一体化升级方案';
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--accent-green);
      color: #0F172A;
      font-size: 12px;
      font-weight: 700;
      padding: 2px 10px;
      border-radius: 12px;
    }
    .compare-heading {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .compare-list {
      list-style: none;
    }
    .compare-list li {
      position: relative;
      padding-left: 24px;
      margin-bottom: 14px;
      font-size: 14px;
      line-height: 1.6;
    }
    .compare-card.old .compare-list li {
      color: #94A3B8;
    }
    .compare-card.old .compare-list li::before {
      content: '✕';
      position: absolute;
      left: 0;
      color: #EF4444;
      font-weight: bold;
    }
    .compare-card.new .compare-list li {
      color: #E2E8F0;
    }
    .compare-card.new .compare-list li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--accent-green);
      font-weight: bold;
    }

    /* 模块 6: 部署四步法 (时间轴) */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
      margin-top: 30px;
    }
    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFF;
      font-size: 16px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }
    .step-name {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 模块 7: 标杆故事 (双列图文卡) */
    .story-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .story-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .story-img-wrap {
      height: 220px;
      overflow: hidden;
    }
    .story-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-content {
      padding: 26px;
    }
    .story-tag {
      font-size: 12px;
      color: var(--primary);
      background: #EFF6FF;
      padding: 3px 10px;
      border-radius: 12px;
      display: inline-block;
      margin-bottom: 12px;
      font-weight: 600;
    }
    .story-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .story-p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 16px;
    }
    .story-metric {
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-sub);
    }
    .story-metric strong {
      color: var(--accent-orange);
      font-size: 15px;
    }

    /* 模块 8: 核心成效数据条 */
    .metric-bar {
      background: linear-gradient(135deg, #0A2558 0%, #0F52BA 100%);
      color: #FFFFFF;
      padding: 50px 0;
      border-radius: var(--radius-lg);
      margin: 40px 0;
      box-shadow: var(--shadow-md);
    }
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-item {
      padding: 0 16px;
      border-right: 1px solid rgba(255, 255, 255, 0.15);
    }
    .metric-item:last-child {
      border-right: none;
    }
    .metric-val {
      font-size: 40px;
      font-weight: 800;
      font-family: Arial, Helvetica, sans-serif;
      margin-bottom: 6px;
      color: #FFFFFF;
    }
    .metric-label {
      font-size: 14px;
      color: #CBD5E1;
      line-height: 1.4;
    }

    /* 模块 9: 适用多角色 (4列卡片) */
    .role-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }
    .role-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .role-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: var(--primary);
    }
    .role-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: #F1F5F9;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .role-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .role-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 模块 10: 资讯动态 (3列网格) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-sub);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 模块 11: 真实证言评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .testi-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 20px;
      position: relative;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 15px;
    }
    .testi-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .testi-school {
      font-size: 12px;
      color: var(--text-sub);
    }

    /* 模块 12: 常见问题 FAQ (手风琴) */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      background: #FFFFFF;
    }
    .faq-icon {
      font-size: 18px;
      transition: transform 0.3s ease;
      color: var(--primary);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.75;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 24px 20px 24px;
    }

    /* 底部通栏 CTA */
    .final-cta-section {
      background: linear-gradient(135deg, #091E42 0%, #0F52BA 100%);
      color: #FFFFFF;
      text-align: center;
      padding: 70px 0;
    }
    .cta-heading {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .cta-sub {
      font-size: 16px;
      color: #CBD5E1;
      max-width: 680px;
      margin: 0 auto 30px auto;
      line-height: 1.8;
    }
    .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
    }
    .btn-light {
      background: #FFFFFF;
      color: var(--primary);
      padding: 12px 28px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      font-size: 15px;
    }
    .btn-light:hover {
      background: #F1F5F9;
    }
    .btn-outline-light {
      border: 1px solid rgba(255, 255, 255, 0.6);
      color: #FFFFFF;
      padding: 12px 28px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      font-size: 15px;
    }
    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0A0F1D;
      color: #94A3B8;
      padding: 60px 0 24px 0;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 16px;
      margin-bottom: 18px;
      font-weight: 700;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .bento-grid {
        grid-template-columns: 1fr;
      }
      .bento-main {
        grid-row: auto;
      }
      .advantage-grid,
      .module-cards-grid,
      .timeline-steps,
      .role-grid,
      .news-grid,
      .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 30px;
      }
      .metric-item:nth-child(2) {
        border-right: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 16px;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-cta {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .system-grid,
      .compare-container,
      .story-grid {
        grid-template-columns: 1fr;
      }
      .advantage-grid,
      .module-cards-grid,
      .timeline-steps,
      .role-grid,
      .news-grid,
      .testimonial-grid {
        grid-template-columns: 1fr;
      }
      .metric-grid {
        grid-template-columns: 1fr;
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        padding-bottom: 20px;
      }
      .metric-item:last-child {
        border-bottom: none;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .hero-cta-group,
      .cta-buttons {
        flex-direction: column;
      }
    }