/* roulang page: index */
:root {
      --primary: #0D9488;
      --primary-hover: #0F766E;
      --primary-light: #CCFBF1;
      --secondary: #0F172A;
      --accent: #F59E0B;
      --accent-hover: #D97706;
      --bg-page: #F8FAFC;
      --bg-surface: #FFFFFF;
      --bg-subtle: #F1F5F9;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-sub: #64748B;
      --border-color: #E2E8F0;
      --border-focus: #0D9488;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
      --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-page);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }

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

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

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

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

    section {
      padding: 80px 0;
      scroll-margin-top: 80px;
    }

    .section-title-wrap {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 14px;
      background: var(--primary-light);
      color: var(--primary-hover);
      font-size: 0.875rem;
      font-weight: 600;
      border-radius: 9999px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      line-height: 1.35;
      color: var(--secondary);
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      border-bottom: 1px solid var(--border-color);
    }

    .top-bar {
      background: #0B1325;
      color: #94A3B8;
      font-size: 0.8125rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .top-bar-left, .top-bar-right {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    .top-bar a:hover {
      color: #FFFFFF;
    }

    .main-bar {
      padding: 14px 0;
    }

    .main-bar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--secondary);
      letter-spacing: -0.5px;
    }

    .logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary) 0%, #065F46 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 800;
      font-size: 1.15rem;
      box-shadow: 0 2px 6px rgba(13, 148, 136, 0.35);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: #334155;
      position: relative;
      padding: 6px 0;
    }

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

    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      background: var(--primary);
      color: #FFFFFF;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      border: 1px solid transparent;
      box-shadow: 0 2px 4px rgba(13, 148, 136, 0.2);
    }

    .nav-cta-btn:hover {
      background: var(--primary-hover);
      box-shadow: 0 4px 8px rgba(13, 148, 136, 0.3);
      transform: translateY(-1px);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--secondary);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 26px;
      border-radius: var(--radius-sm);
      font-size: 0.975rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 10px rgba(13, 148, 136, 0.25);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 14px rgba(13, 148, 136, 0.35);
    }

    .btn-secondary {
      background: #FFFFFF;
      color: var(--secondary);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #F8FAFC;
      transform: translateY(-2px);
    }

    .btn-accent {
      background: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    }

    .btn-accent:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(245, 158, 11, 0.4);
    }

    /* 1. Hero 前后对比首屏 */
    .hero-section {
      position: relative;
      background: #0B1329;
      color: #FFFFFF;
      padding: 85px 0 100px;
      overflow: hidden;
    }

    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: linear-gradient(180deg, rgba(11, 19, 41, 0.88) 0%, rgba(11, 19, 41, 0.96) 100%), url('/assets/images/7afa0b15630328ae.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.85;
      z-index: 1;
    }

    .hero-container {
      position: relative;
      z-index: 2;
    }

    .hero-header-box {
      text-align: center;
      max-width: 900px;
      margin: 0 auto 50px;
    }

    .hero-tag {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(13, 148, 136, 0.2);
      border: 1px solid rgba(45, 212, 191, 0.4);
      color: #5EEAD4;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      color: #FFFFFF;
      margin-bottom: 20px;
    }

    .hero-desc {
      font-size: 1.125rem;
      line-height: 1.75;
      color: #CBD5E1;
      margin-bottom: 30px;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* Before/After 并置对比卡片 */
    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      margin-top: 48px;
    }

    .compare-card {
      border-radius: var(--radius-lg);
      padding: 32px;
      position: relative;
      backdrop-filter: blur(12px);
      transition: transform 0.3s ease;
    }

    .compare-before {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(239, 68, 68, 0.3);
    }

    .compare-after {
      background: rgba(15, 30, 45, 0.85);
      border: 2px solid rgba(13, 148, 136, 0.6);
      box-shadow: 0 10px 30px rgba(13, 148, 136, 0.2);
    }

    .compare-badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.8125rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    .badge-before {
      background: rgba(239, 68, 68, 0.2);
      color: #FCA5A5;
      border: 1px solid rgba(239, 68, 68, 0.3);
    }

    .badge-after {
      background: rgba(13, 148, 136, 0.3);
      color: #5EEAD4;
      border: 1px solid rgba(45, 212, 191, 0.4);
    }

    .compare-heading {
      font-size: 1.35rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
    }

    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .compare-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
      line-height: 1.55;
    }

    .compare-before .compare-item {
      color: #94A3B8;
    }

    .compare-after .compare-item {
      color: #E2E8F0;
    }

    .item-icon-bad {
      color: #F87171;
      font-weight: bold;
      flex-shrink: 0;
    }

    .item-icon-good {
      color: #34D399;
      font-weight: bold;
      flex-shrink: 0;
    }

    /* 2. 企业客服痛点与困局剖析区 */
    .pain-section {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
    }

    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }

    .pain-card {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-md);
      padding: 26px 20px;
      transition: all 0.3s ease;
      position: relative;
    }

    .pain-card:hover {
      border-color: #CBD5E1;
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .pain-status {
      font-size: 0.75rem;
      font-weight: 700;
      color: #DC2626;
      background: #FEE2E2;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }

    .pain-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 10px;
    }

    .pain-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 品牌与产品定位介绍区 */
    .about-section {
      background: var(--bg-page);
    }

    .about-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about-image-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-xl);
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      position: relative;
    }

    .about-image-card img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .about-tag-float {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(15, 23, 42, 0.9);
      color: #FFFFFF;
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      backdrop-filter: blur(8px);
      font-size: 0.85rem;
      line-height: 1.4;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .about-content h2 {
      font-size: 2rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 18px;
      line-height: 1.35;
    }

    .about-content p {
      color: var(--text-muted);
      margin-bottom: 24px;
      font-size: 0.98rem;
    }

    .compliance-box {
      background: #FFFFFF;
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      box-shadow: var(--shadow-sm);
      margin-top: 24px;
    }

    .compliance-box h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 6px;
    }

    .compliance-box p {
      font-size: 0.875rem;
      color: var(--text-sub);
      margin-bottom: 0;
    }

    /* 4. 客户服务系统核心优势区 */
    .features-section {
      background: #FFFFFF;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(13, 148, 136, 0.4);
    }

    .feature-icon-wrapper {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .feature-sublist {
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .feature-sublist li {
      font-size: 0.85rem;
      color: var(--text-sub);
      margin-bottom: 6px;
      position: relative;
      padding-left: 16px;
    }

    .feature-sublist li::before {
      content: "•";
      color: var(--primary);
      position: absolute;
      left: 0;
      font-weight: bold;
    }

    /* 5. 热门产品与解决方案矩阵区 */
    .products-section {
      background: #F1F5F9;
    }

    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

    .product-plan-card.highlight {
      border: 2px solid var(--primary);
      transform: translateY(-8px);
      box-shadow: var(--shadow-xl);
    }

    .plan-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      padding: 4px 16px;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.5px;
    }

    .plan-name {
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 10px;
    }

    .plan-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 48px;
    }

    .plan-features {
      list-style: none;
      margin-bottom: 30px;
      flex-grow: 1;
    }

    .plan-features li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.925rem;
      color: #334155;
      margin-bottom: 12px;
    }

    .check-mark {
      color: var(--primary);
      font-weight: bold;
    }

    /* 6. 深色理念与系统架构区 */
    .arch-section {
      background: #090E1A;
      color: #FFFFFF;
      padding: 90px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .arch-section .section-title {
      color: #FFFFFF;
    }

    .arch-section .section-desc {
      color: #94A3B8;
    }

    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .arch-diagram {
      background: #111827;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    }

    .arch-layer {
      background: #1F2937;
      border: 1px dashed rgba(45, 212, 191, 0.4);
      border-radius: var(--radius-md);
      padding: 16px;
      margin-bottom: 16px;
    }

    .arch-layer:last-child {
      margin-bottom: 0;
    }

    .arch-layer-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: #5EEAD4;
      margin-bottom: 8px;
    }

    .arch-layer-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .arch-chip {
      background: rgba(255, 255, 255, 0.06);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.8rem;
      color: #E2E8F0;
    }

    .arch-info h3 {
      font-size: 1.6rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .arch-info p {
      font-size: 0.98rem;
      color: #94A3B8;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .arch-specs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .spec-box {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
padding: 16px;
    }

    .spec-value {
      font-size: 1.5rem;
      font-weight: 700;
      color: #38BDF8;
      margin-bottom: 4px;
    }

    .spec-label {
      font-size: 0.8125rem;
      color: #64748B;
    }

    /* 7. 实施方法与接入步骤流程区 */
    .workflow-section {
      background: #FFFFFF;
    }

    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .workflow-steps::before {
      content: "";
      position: absolute;
      top: 40px;
      left: 12%;
      right: 12%;
      height: 2px;
      background: #E2E8F0;
      z-index: 1;
    }

    .step-card {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 0 10px;
    }

    .step-number {
      width: 52px;
      height: 52px;
      background: #FFFFFF;
      border: 3px solid var(--primary);
      color: var(--primary);
      font-size: 1.25rem;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      box-shadow: 0 0 0 6px #FFFFFF;
    }

    .step-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 10px;
    }

    .step-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 关键业务数据指标统计条 */
    .metrics-section {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      color: #FFFFFF;
      padding: 60px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-card {
      padding: 10px;
    }

    .metric-num {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 8px;
      background: linear-gradient(90deg, #5EEAD4 0%, #38BDF8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .metric-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: #F8FAFC;
      margin-bottom: 6px;
    }

    .metric-desc {
      font-size: 0.85rem;
      color: #94A3B8;
    }

    /* 9. 标杆客户故事与成果转化区 */
    .case-section {
      background: #F8FAFC;
    }

    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

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

    .case-img-wrap {
      height: 220px;
      overflow: hidden;
      position: relative;
    }

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

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-industry-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(15, 23, 42, 0.85);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 4px;
    }

    .case-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 12px;
    }

    .case-body p {
      font-size: 0.925rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .case-stats-row {
      display: flex;
      gap: 16px;
      background: #F1F5F9;
      padding: 14px;
      border-radius: var(--radius-sm);
    }

    .case-stat-item {
      flex: 1;
    }

    .case-stat-val {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
    }

    .case-stat-lbl {
      font-size: 0.75rem;
      color: var(--text-sub);
    }

    /* 10. 真实用户证言与口碑反馈区 */
    .testimonials-section {
      background: #FFFFFF;
    }

    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .testi-card {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testi-stars {
      color: #F59E0B;
      font-size: 1.1rem;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }

    .testi-quote {
      font-size: 0.9375rem;
      color: var(--text-muted);
      font-style: italic;
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #E2E8F0;
      padding-top: 16px;
    }

    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #CBD5E1;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #475569;
      font-size: 1rem;
      border: 2px solid #FFFFFF;
    }

    .testi-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--secondary);
    }

    .testi-info p {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    /* 11. 客户服务系统前沿资讯摘要区 */
    .insights-section {
      background: #F8FAFC;
    }

    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .insight-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .insight-meta {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 10px;
    }

    .insight-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .insight-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .insights-bottom-cta {
      text-align: center;
      margin-top: 40px;
    }

    /* 12. 常见问题解答 FAQ 交互区 */
    .faq-section {
      background: #FFFFFF;
    }

    .faq-wrapper {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      background: #F8FAFC;
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      background: #FFFFFF;
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      background: none;
      border: none;
      padding: 20px 24px;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--secondary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding-bottom: 20px;
    }

    .faq-answer p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 13. 底部全局转化沉浸区 */
    .conversion-section {
      background: #0B1329;
      padding: 80px 0;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
    }

    .conversion-card {
      background: linear-gradient(135deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-xl);
      padding: 56px 40px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .cta-left h2 {
      font-size: 2.2rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
      line-height: 1.3;
    }

    .cta-left p {
      font-size: 1rem;
      color: #94A3B8;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .cta-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .cta-points li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: #E2E8F0;
    }

    .cta-points li span {
      color: #5EEAD4;
      font-weight: bold;
    }

    .cta-form {
      background: #FFFFFF;
      padding: 32px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
    }

    .cta-form h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 18px;
      text-align: center;
    }

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

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      background-color: #F8FAFC;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--border-focus);
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
      background-color: #FFFFFF;
    }

    .form-submit-btn {
      width: 100%;
      padding: 13px;
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1rem;
      margin-top: 8px;
      transition: background 0.2s ease;
    }

    .form-submit-btn:hover {
      background: var(--primary-hover);
    }

    /* 页脚 Footer */
    .site-footer {
      background: #090E1A;
      color: #94A3B8;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-brand h4 {
      font-size: 1.35rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      line-height: 1.65;
      color: #64748B;
      margin-bottom: 20px;
      max-width: 320px;
    }

    .footer-col h5 {
      font-size: 1rem;
      font-weight: 700;
      color: #F1F5F9;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #64748B;
      font-size: 0.875rem;
    }

    .footer-links a:hover {
      color: #5EEAD4;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 26px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8125rem;
      color: #64748B;
    }

    .footer-bottom a {
      color: #64748B;
    }

    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .pain-grid, .workflow-steps, .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps::before {
        display: none;
      }
      .features-section .feature-grid,
      .products-grid,
      .testi-grid,
      .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-layout, .arch-grid, .conversion-card {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 50px 0;
      }
      .top-bar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
        display: none;
        gap: 16px;
      }
      .main-nav.active {
        display: flex;
      }
      .nav-cta-btn {
        display: none;
      }
      .hero-title {
        font-size: 2rem;
      }
      .comparison-grid,
      .features-section .feature-grid,
      .products-grid,
      .case-grid,
      .testi-grid,
      .insights-grid,
      .pain-grid,
      .workflow-steps,
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
      .conversion-card {
        padding: 30px 20px;
      }
    }

    @media (max-width: 480px) {
      .hero-title {
        font-size: 1.7rem;
      }
      .btn {
        width: 100%;
      }
    }