/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-dark: #0A387E;
      --primary-light: #EBF2FD;
      --accent: #00A86B;
      --accent-hover: #008f5b;
      --dark-navy: #0A192F;
      --dark-card: #112240;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 6px 16px -2px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 32px -4px rgba(15, 23, 42, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition: all 0.25s ease-in-out;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    body {
      overflow-x: hidden;
      min-width: 320px;
    }

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

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 按钮通用组件 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      line-height: 1.2;
      text-align: center;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
    }
    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(15, 82, 186, 0.25);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #fff;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(0, 168, 107, 0.25);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-outline:hover {
      background-color: var(--primary-light);
    }
    .btn-white {
      background-color: #fff;
      color: var(--primary);
    }
    .btn-white:hover {
      background-color: #f1f5f9;
      transform: translateY(-2px);
    }

    /* 标签徽章 */
    .badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-full);
      background-color: var(--primary-light);
      color: var(--primary);
      margin-bottom: 12px;
    }
    .badge-accent {
      background-color: rgba(0, 168, 107, 0.12);
      color: var(--accent);
    }

    /* 板块通用头部 */
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }
    .section-header h2 {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-header p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 基础区块内边距与背景 */
    .section {
      padding: 90px 0;
      position: relative;
    }
    .bg-white-section {
      background-color: var(--bg-white);
    }
    .bg-gray-section {
      background-color: var(--bg-light);
    }
    .bg-dark-section {
      background-color: var(--dark-navy);
      color: #fff;
    }

    /* 滚动收缩双层导航 */
    .header-wrapper {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: #ffffff;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .header-topbar {
      background: var(--dark-navy);
      color: #cbd5e1;
      font-size: 13px;
      padding: 7px 0;
      transition: max-height 0.3s ease, opacity 0.3s ease;
      overflow: hidden;
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-left span {
      margin-right: 20px;
    }
    .topbar-right a {
      color: #94a3b8;
      margin-left: 15px;
    }
    .topbar-right a:hover {
      color: #fff;
    }
    .header-main {
      padding: 16px 0;
      background: #ffffff;
      transition: padding 0.3s ease;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 20px;
      color: var(--primary);
    }
    .logo-badge {
      background: var(--primary);
      color: #fff;
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 700;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-item {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 6px 0;
      position: relative;
    }
    .nav-item:hover, .nav-item.active {
      color: var(--primary);
    }
    .nav-item::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-item:hover::after, .nav-item.active::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 滚动收缩状态 */
    .header-wrapper.scrolled .header-topbar {
      max-height: 0;
      padding: 0;
      opacity: 0;
    }
    .header-wrapper.scrolled .header-main {
      padding: 10px 0;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(8px);
    }

    /* 1. Hero 前后对比首屏 (#home) */
    .hero-section {
      padding-top: 170px;
      padding-bottom: 90px;
      background: linear-gradient(180deg, #F0F5FD 0%, #FFFFFF 100%);
      position: relative;
      overflow: hidden;
    }
    .hero-head {
      text-align: center;
      max-width: 900px;
      margin: 0 auto 50px auto;
    }
    .hero-head h1 {
      font-size: 44px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-head h1 span {
      color: var(--primary);
    }
    .hero-head p {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 30px;
    }
    .hero-btns {
      display: flex;
      justify-content: center;
      gap: 16px;
    }
    
    /* Before / After 对比组件 */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-top: 30px;
    }
    .compare-card {
      border-radius: var(--radius-md);
      padding: 32px;
      position: relative;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .compare-card.before {
      background: #FFFFFF;
      border-color: #E2E8F0;
    }
    .compare-card.after {
      background: #FFFFFF;
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
    }
    .card-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
    }
    .before .card-tag {
      background: #F1F5F9;
      color: #64748B;
    }
    .after .card-tag {
      background: var(--primary);
      color: #FFFFFF;
    }
    .compare-card h3 {
      font-size: 20px;
      margin-bottom: 18px;
    }
    .compare-list li {
      display: flex;
      align-items: flex-start;
      margin-bottom: 14px;
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .compare-list li span.dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      margin-top: 7px;
      margin-right: 12px;
      flex-shrink: 0;
    }
    .before .dot { background-color: #94A3B8; }
    .after .dot { background-color: var(--accent); }

    /* 2. 行业痛点提问区 (#pains) */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pain-box {
      background: var(--bg-white);
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .pain-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #CBD5E1;
    }
    .pain-icon {
      font-size: 30px;
      margin-bottom: 16px;
      color: #DC2626;
    }
    .pain-box h3 {
      font-size: 19px;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .pain-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 核心业务与解决方案区 (#intro) */
    .solution-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .solution-image img {
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      width: 100%;
      object-fit: cover;
      max-height: 440px;
    }
    .solution-content h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 20px;
      line-height: 1.3;
    }
    .solution-content p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .spec-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 30px;
    }
    .spec-item {
      background: var(--primary-light);
      color: var(--primary-dark);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
    }

    /* 4. 平台核心优势 (6卡网格) (#features) */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg-white);
      padding: 32px 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .feature-symbol {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 18px;
      margin-bottom: 18px;
    }
    .feature-card h3 {
      font-size: 18px;
      margin-bottom: 10px;
      font-weight: 700;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 5. 实时战术分析与数据演示区 (#concept) */
    .concept-box {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: var(--dark-card);
      border-radius: var(--radius-md);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .concept-text h2 {
      font-size: 32px;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .concept-text p {
      color: #94A3B8;
      font-size: 15px;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .concept-stats-row {
      display: flex;
      gap: 24px;
    }
    .stat-pill {
      background: rgba(255, 255, 255, 0.05);
      padding: 14px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .stat-pill .num {
      font-size: 24px;
      font-weight: 700;
      color: var(--accent);
      display: block;
    }
    .stat-pill .lbl {
      font-size: 13px;
      color: #CBD5E1;
    }
    .concept-visual img {
      width: 100%;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    }

    /* 6. 场景化落地演示区 (#scenarios) */
    .tab-nav {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 36px;
    }
    .tab-btn {
      padding: 10px 24px;
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 600;
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .tab-btn.active, .tab-btn:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
    .tab-content {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: none;
    }
    .tab-content.active {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .tab-text h3 {
      font-size: 24px;
      margin-bottom: 14px;
    }
    .tab-text p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    /* 7. 真实用户实践故事区 (#stories) */
    .stories-wrap {
      display: flex;
      flex-direction: column;
      gap: 40px;
    }
    .story-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      background: var(--bg-white);
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .story-item.reverse {
      grid-template-columns: 1fr 1fr;
      direction: rtl;
    }
    .story-item.reverse .story-info {
      direction: ltr;
    }
    .story-item.reverse .story-media {
      direction: ltr;
    }
    .story-media img {
      border-radius: var(--radius-sm);
      width: 100%;
      height: 280px;
      object-fit: cover;
    }
    .story-info h3 {
      font-size: 22px;
      margin-bottom: 12px;
    }
    .story-info p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .story-author {
      font-weight: 700;
      color: var(--primary);
      font-size: 14px;
    }

    /* 8. 关键数据量化统计条 (#metrics) */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-card {
      background: var(--bg-white);
      padding: 30px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .metric-card .value {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
      line-height: 1;
    }
    .metric-card .title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .metric-card .desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 9. 用户口碑与社会认同区 (#reviews) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: var(--bg-white);
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .stars {
      color: #EAB308;
      font-size: 18px;
      margin-bottom: 14px;
    }
    .review-text {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }
    .reviewer-meta h4 {
      font-size: 16px;
      font-weight: 700;
    }
    .reviewer-meta span {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 10. 内嵌智能资讯证据库 (#news) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .news-body h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .news-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 11. 热门产品与套餐对比区 (#products) */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      align-items: stretch;
    }
    .pricing-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.03);
      z-index: 2;
    }
    .featured-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #fff;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      font-size: 12px;
      font-weight: 700;
    }
    .pricing-card h3 {
      font-size: 20px;
      margin-bottom: 8px;
    }
    .pricing-card .pricing-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .pricing-card .price {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 24px;
    }
    .pricing-card .price span {
      font-size: 14px;
      font-weight: normal;
      color: var(--text-muted);
    }
    .pricing-features {
      margin-bottom: 30px;
      flex: 1;
    }
    .pricing-features li {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pricing-features li::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }

    /* 12. 常见疑问手风琴区 (#faq) */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-trigger {
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      background: none;
      border: none;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-icon {
      font-size: 18px;
      transition: transform 0.25s ease;
    }
    .faq-content {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.7;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    .faq-item.open .faq-content {
      padding-bottom: 20px;
      max-height: 200px;
    }

    /* 保障条与收口线索表单 (#trust & #contact) */
    .trust-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-bottom: 60px;
    }
    .trust-item {
      text-align: center;
      padding: 24px 16px;
      background: var(--bg-white);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }
    .trust-item h4 {
      font-size: 16px;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .trust-item p {
      font-size: 13px;
      color: var(--text-muted);
    }

    .form-wrapper {
      max-width: 720px;
      margin: 0 auto;
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
      text-align: left;
    }
    .form-group.full {
      grid-column: 1 / -1;
    }
    .form-group label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-group input, .form-group select, .form-group textarea {
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
      background-color: #F8FAFC;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      border-color: var(--primary);
      background-color: #fff;
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
    }
    .form-privacy-note {
      font-size: 12px;
      color: var(--text-light);
      margin-top: 14px;
      text-align: center;
    }

    /* 悬浮转化条 */
    .sticky-bar {
      position: fixed;
      bottom: 24px;
      right: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }
    .sticky-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      font-size: 18px;
      cursor: pointer;
      transition: var(--transition);
      border: none;
    }
    .sticky-btn:hover {
      background: var(--primary-dark);
      transform: scale(1.08);
    }

    /* 统一页脚 */
    footer {
      background-color: var(--dark-navy);
      color: #94A3B8;
      padding: 70px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      font-size: 20px;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .footer-col h4 {
      font-size: 16px;
      color: #fff;
      margin-bottom: 18px;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      font-size: 14px;
      color: #94A3B8;
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-contact p {
      font-size: 14px;
      margin-bottom: 8px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: #64748B;
      flex-wrap: wrap;
      gap: 12px;
    }
    .footer-bottom a {
      color: #64748B;
    }
    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .compare-container {
        grid-template-columns: 1fr;
      }
      .pain-grid, .features-grid, .reviews-grid, .news-grid, .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .solution-layout, .concept-box, .story-item, .story-item.reverse {
        grid-template-columns: 1fr;
      }
      .metrics-bar, .trust-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-topbar {
        display: none;
      }
      .nav-links, .nav-actions .btn-outline {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-head h1 {
        font-size: 32px;
      }
      .hero-section {
        padding-top: 110px;
      }
      .section {
        padding: 60px 0;
      }
      .pain-grid, .features-grid, .reviews-grid, .news-grid, .pricing-grid {
        grid-template-columns: 1fr;
      }
      .tab-content.active {
        grid-template-columns: 1fr;
      }
      .metrics-bar, .trust-bar {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
      .pricing-card.featured {
        transform: none;
      }
    }