/* roulang page: index */
:root {
      --primary: #0F4C81;
      --primary-dark: #0A3258;
      --primary-light: #1E40AF;
      --accent: #0284C7;
      --accent-orange: #EA580C;
      --bg-main: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B132B;
      --bg-subtle: #F1F5F9;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: rgba(226, 232, 240, 0.85);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 14px 30px -4px rgba(15, 76, 129, 0.12);
      --container-max: 1280px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: clamp(1rem, 3vw, 2.5rem);
      padding-right: clamp(1rem, 3vw, 2.5rem);
    }

    .section-spacing {
      padding-top: clamp(60px, 7vw, 105px);
      padding-bottom: clamp(60px, 7vw, 105px);
    }

    .section-title-wrap {
      text-align: center;
      max-width: 820px;
      margin: 0 auto clamp(36px, 5vw, 60px);
    }

    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      background-color: rgba(2, 132, 199, 0.1);
      color: var(--primary);
      font-size: 0.825rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      border-radius: 9999px;
      margin-bottom: 12px;
      text-transform: uppercase;
      border: 1px solid rgba(2, 132, 199, 0.25);
    }

    .section-title {
      font-size: clamp(1.75rem, 3vw, 2.45rem);
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }

    .section-desc {
      font-size: 1.025rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 顶部服务条 */
    .top-bar {
      background-color: #0b1e33;
      color: #94a3b8;
      font-size: 0.825rem;
      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: 10px;
    }

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

    .top-bar-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 14px rgba(0, 0, 0, 0.06);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.02em;
    }

    .nav-logo-mark {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.15rem;
      font-weight: 900;
      box-shadow: 0 4px 10px rgba(15, 76, 129, 0.25);
    }

    .nav-menu {
      display: flex;
      gap: 28px;
      align-items: center;
      list-style: none;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: #334155;
      padding: 6px 2px;
      position: relative;
    }

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

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: width 0.25s ease;
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.925rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
      cursor: pointer;
      border: 1px solid transparent;
      min-height: 44px;
      text-align: center;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(15, 76, 129, 0.2);
    }

    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(15, 76, 129, 0.3);
    }

    .btn-accent {
      background-color: var(--accent-orange);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(234, 88, 12, 0.25);
    }

    .btn-accent:hover {
      background-color: #c2410c;
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(234, 88, 12, 0.35);
    }

    .btn-outline {
      background-color: transparent;
      color: var(--primary);
      border-color: rgba(15, 76, 129, 0.3);
    }

    .btn-outline:hover {
      background-color: rgba(15, 76, 129, 0.05);
      border-color: var(--primary);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 8px;
    }

    /* 区块1：Hero 首屏旗舰店风格 */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #091e36 0%, #0f355c 60%, #154e85 100%);
      color: #ffffff;
      padding-top: clamp(48px, 6vw, 80px);
      padding-bottom: clamp(60px, 8vw, 110px);
      overflow: hidden;
    }

    .hero-bg-overlay {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/28b9f0f89431c91f.png');
      background-size: cover;
      background-position: center;
      opacity: 0.16;
      mix-blend-mode: overlay;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      max-width: 680px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.22);
      border-radius: 9999px;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.05em;
      margin-bottom: 24px;
      backdrop-filter: blur(8px);
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background-color: #22c55e;
      border-radius: 50%;
      box-shadow: 0 0 8px #22c55e;
    }

    .hero-title {
      font-size: clamp(2.1rem, 3.8vw, 3.35rem);
      font-weight: 900;
      line-height: 1.18;
      letter-spacing: -0.03em;
      margin-bottom: 22px;
      color: #ffffff;
    }

    .hero-title span {
      background: linear-gradient(90deg, #38bdf8, #93c5fd);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: clamp(1rem, 1.2vw, 1.125rem);
      line-height: 1.8;
      color: #cbd5e1;
      margin-bottom: 34px;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

    /* 旗舰店系列导航条叠卡 */
    .hero-spec-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      background: rgba(15, 23, 42, 0.45);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      backdrop-filter: blur(12px);
    }

    .hero-spec-item {
      border-right: 1px solid rgba(255, 255, 255, 0.1);
      padding-right: 10px;
    }

    .hero-spec-item:last-child {
      border-right: none;
      padding-right: 0;
    }

    .hero-spec-val {
      font-size: 1.35rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1.2;
    }

    .hero-spec-lbl {
      font-size: 0.775rem;
      color: #94a3b8;
      margin-top: 4px;
    }

    .hero-visual {
      position: relative;
    }

    .hero-card-showcase {
      position: relative;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 18px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
      color: var(--text-main);
      overflow: hidden;
    }

    .hero-card-img {
      width: 100%;
      height: 310px;
      object-fit: cover;
      border-radius: var(--radius-md);
      margin-bottom: 16px;
    }

    .hero-card-hud {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 14px;
      background-color: var(--bg-subtle);
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 600;
    }

    .hud-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #059669;
    }

    /* 区块2：痛点深度共鸣区 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .pain-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
      border-top: 4px solid #ef4444;
    }

    .pain-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .pain-num {
      font-size: 1.8rem;
      font-weight: 900;
      color: #ef4444;
      line-height: 1;
      margin-bottom: 14px;
      opacity: 0.85;
    }

    .pain-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .pain-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 区块3：整体解决方案区 */
    .overview-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .overview-img-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
      border: 1px solid var(--border-color);
    }

    .overview-img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .overview-badge-float {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(15, 23, 42, 0.88);
      color: #fff;
      padding: 12px 20px;
      border-radius: var(--radius-md);
      backdrop-filter: blur(8px);
      font-size: 0.85rem;
    }

    .overview-specs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 26px;
    }

    .spec-box {
      background: #FFFFFF;
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .spec-box-k {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .spec-box-v {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-top: 4px;
    }

    /* 区块4：核心优势区（6卡网格） */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(2, 132, 199, 0.4);
    }

    .feature-icon-box {
      width: 48px;
      height: 48px;
      background: rgba(15, 76, 129, 0.08);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 800;
      font-size: 1.25rem;
      margin-bottom: 20px;
    }

    .feature-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 区块5：硬件与产品体系 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .product-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .product-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .product-img-box {
      height: 220px;
      width: 100%;
      overflow: hidden;
      background-color: #f8fafc;
    }

    .product-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .product-card:hover .product-img-box img {
      transform: scale(1.05);
    }

    .product-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .product-tag {
      font-size: 0.775rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 8px;
    }

    .product-name {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .product-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .product-params {
      list-style: none;
      font-size: 0.825rem;
      color: #475569;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
      margin-bottom: 18px;
    }

    .product-params li {
      margin-bottom: 6px;
      display: flex;
      justify-content: space-between;
    }

    /* 区块6：执行方法与步骤 */
    .workflow-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-number {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      margin-bottom: 16px;
    }

    .step-name {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 区块7：深色对比标杆案例 */
    .cases-section {
      background-color: var(--bg-dark);
      color: #ffffff;
    }

    .cases-section .section-title {
      color: #ffffff;
    }

    .cases-section .section-desc {
      color: #94a3b8;
    }

    .cases-section .section-badge {
      background: rgba(56, 189, 248, 0.15);
      color: #38bdf8;
      border-color: rgba(56, 189, 248, 0.3);
    }

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

    .case-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .case-card:hover {
      transform: translateY(-6px);
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(56, 189, 248, 0.4);
    }

    .case-img-wrap {
      height: 200px;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-body {
      padding: 24px;
    }

    .case-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: #38bdf8;
      margin-bottom: 8px;
      letter-spacing: 0.05em;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #ffffff;
    }

    .case-desc {
      font-size: 0.875rem;
      color: #cbd5e1;
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .case-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: #94a3b8;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 12px;
    }

    /* 区块8：用户故事与实战复盘 */
    .story-card-wrap {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .story-content h3 {
      font-size: 1.5rem;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.35;
    }

    .story-quote {
      font-size: 1.05rem;
      color: #334155;
      line-height: 1.8;
      margin-bottom: 24px;
      font-style: italic;
      border-left: 4px solid var(--accent);
      padding-left: 18px;
    }

    .story-author {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .story-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .story-author-info h4 {
      font-size: 0.95rem;
      color: var(--text-main);
      font-weight: 700;
    }

    .story-author-info p {
      font-size: 0.825rem;
      color: var(--text-muted);
    }

    .story-stats {
      background: var(--bg-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
    }

    .story-stat-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 0;
      border-bottom: 1px dashed #cbd5e1;
    }

    .story-stat-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .story-stat-label {
      font-size: 0.875rem;
      color: #475569;
    }

    .story-stat-value {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--primary);
    }

    /* 区块9：关键数据指标 */
    .stat-bar-section {
      background: linear-gradient(135deg, #0f355c 0%, #0a2544 100%);
      color: #ffffff;
      padding: 50px 0;
    }

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

    .stat-bar-item {
      padding: 10px 16px;
      border-right: 1px solid rgba(255, 255, 255, 0.12);
    }

    .stat-bar-item:last-child {
      border-right: none;
    }

    .stat-bar-num {
      font-size: clamp(2rem, 3.2vw, 2.75rem);
      font-weight: 900;
      color: #38bdf8;
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .stat-bar-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #f1f5f9;
      margin-bottom: 4px;
    }

    .stat-bar-sub {
      font-size: 0.8rem;
      color: #94a3b8;
    }

    /* 区块10：细分场景区 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .scenario-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .scenario-img-box {
      height: 180px;
      position: relative;
    }

    .scenario-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .scenario-body {
      padding: 22px;
      flex-grow: 1;
    }

    .scenario-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .scenario-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 区块11：用户评价与行业背书 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testi-stars {
      color: #f59e0b;
      font-size: 1rem;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }

    .testi-text {
      font-size: 0.92rem;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .testi-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }

    .testi-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .testi-info h5 {
      font-size: 0.925rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .testi-info p {
      font-size: 0.775rem;
      color: var(--text-muted);
    }

    /* 区块12：资讯摘要 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(15, 76, 129, 0.3);
    }

    .news-date {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 10px;
    }

    .news-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .news-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .news-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 区块13：FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background-color 0.2s ease;
    }

    .faq-question:hover {
      background-color: var(--bg-subtle);
    }

    .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;
      background-color: #ffffff;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 24px 20px 24px;
    }

    .faq-answer p {
      font-size: 0.925rem;
      color: #475569;
      line-height: 1.75;
    }

    /* 区块14：强转化 CTA 与需求表单 */
    .cta-section {
      background: linear-gradient(135deg, #091e36 0%, #0f4c81 100%);
      color: #ffffff;
      padding: 70px 0;
      position: relative;
    }

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

    .cta-content h2 {
      font-size: clamp(1.8rem, 2.8vw, 2.4rem);
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 20px;
    }

    .cta-content p {
      font-size: 1.05rem;
      color: #cbd5e1;
      line-height: 1.8;
      margin-bottom: 30px;
    }

    .cta-contact-list {
      list-style: none;
      font-size: 0.95rem;
      color: #e2e8f0;
    }

    .cta-contact-list li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .cta-form-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
      color: var(--text-main);
    }

    .cta-form-box h3 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .cta-form-box p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 22px;
    }

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

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

    .form-control {
      width: 100%;
      height: 44px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 0.9rem;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.25s ease;
      background: #fff;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.15);
    }

    select.form-control {
      cursor: pointer;
    }

    /* 页脚 */
    .site-footer {
      background-color: #071526;
      color: #94a3b8;
      padding-top: 60px;
      padding-bottom: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.875rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-logo {
      font-size: 1.2rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 16px;
      display: inline-block;
    }

    .footer-about {
      line-height: 1.7;
      color: #64748b;
      margin-bottom: 20px;
      font-size: 0.85rem;
    }

    .footer-col h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a:hover {
      color: #38bdf8;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8rem;
      color: #64748b;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .pain-grid, .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .features-grid, .products-grid, .cases-grid, .news-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-bar-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-bar-item:nth-child(2) {
        border-right: none;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .hero-inner, .overview-row, .story-card-wrap, .cta-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .features-grid, .products-grid, .cases-grid, .news-grid, .testimonials-grid, .pain-grid, .scenarios-grid {
        grid-template-columns: 1fr;
      }
      .workflow-strip {
        grid-template-columns: 1fr;
      }
      .stat-bar-grid {
        grid-template-columns: 1fr;
      }
      .stat-bar-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-bottom: 18px;
      }
      .stat-bar-item:last-child {
        border-bottom: none;
      }
      .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid var(--border-color);
        display: none;
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-actions {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .story-card-wrap {
        padding: 24px;
      }
    }