/* roulang page: index */
:root {
      --primary: #185AEF;
      --primary-hover: #0E47C7;
      --accent: #00B96B;
      --accent-hover: #009958;
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 12px 30px -4px rgba(24, 90, 239, 0.12);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul, ol {
      list-style: none;
    }

    button, input, select {
      font-family: inherit;
      outline: none;
    }

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部微型栏 */
    .top-bar {
      background: #0B132B;
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar .container {
      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;
    }

    /* 主导航 */
    .header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-wrap {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
    }
    .brand-logo svg {
      width: 32px;
      height: 32px;
      fill: var(--primary);
    }
    .brand-logo span {
      background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-menu {
      display: flex;
      gap: 32px;
      align-items: center;
    }
    .nav-link {
      font-weight: 500;
      font-size: 15px;
      color: var(--text-muted);
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      line-height: 1.2;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(24, 90, 239, 0.3);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(24, 90, 239, 0.4);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #F1F5FD;
    }
    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
    }

    /* Section 标准间距 */
    .section {
      padding: 96px 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 56px auto;
    }
    .section-badge {
      display: inline-block;
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--primary);
      background: rgba(24, 90, 239, 0.08);
      border-radius: 999px;
      margin-bottom: 16px;
      letter-spacing: 0.05em;
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
      letter-spacing: -0.01em;
      color: var(--text-main);
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. 首屏轮播与强 CTA 转化区 (Hero Banner) */
    .hero-banner {
      position: relative;
      background: radial-gradient(circle at 10% 20%, #eff6ff 0%, #F8FAFC 80%);
      padding: 72px 0 100px 0;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 46px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 24px;
      letter-spacing: -0.02em;
    }
    .hero-content h1 mark {
      background: transparent;
      color: var(--primary);
    }
    .hero-intro {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-proof-pills {
      display: flex;
      gap: 24px;
      align-items: center;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }
    .proof-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }
    .proof-item svg {
      width: 18px;
      height: 18px;
      fill: var(--accent);
    }

    /* 轮播卡片舞台 */
    .hero-carousel-wrap {
      position: relative;
    }
    .hero-carousel {
      position: relative;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 16px;
      box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.12);
      border: 1px solid var(--border-color);
    }
    .carousel-slide {
      display: none;
      border-radius: var(--radius-md);
      overflow: hidden;
      position: relative;
    }
    .carousel-slide.active {
      display: block;
      animation: fadeIn 0.5s ease-in-out;
    }
    .carousel-slide img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      border-radius: var(--radius-sm);
    }
    .carousel-caption {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
      padding: 24px 20px 16px;
      color: #FFFFFF;
    }
    .carousel-caption h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .carousel-caption p {
      font-size: 13px;
      color: #E2E8F0;
    }
    .carousel-nav-btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 40px;
      height: 40px;
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: var(--shadow-card);
      z-index: 10;
      transition: var(--transition);
    }
    .carousel-nav-btn:hover {
      background: #FFFFFF;
      color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .carousel-nav-btn.prev { left: -16px; }
    .carousel-nav-btn.next { right: -16px; }

    /* 2. 机构痛点与行业差异对比区 */
    .pain-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .pain-card {
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .pain-card.legacy {
      background: #FFF5F5;
      border-color: #FED7D7;
    }
    .pain-card.smart {
      background: #F0FDF4;
      border-color: #BBF7D0;
      box-shadow: 0 10px 25px -5px rgba(0, 185, 107, 0.1);
    }
    .pain-card-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 24px;
    }
    .pain-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      font-weight: 700;
      font-size: 14px;
    }
    .pain-badge.legacy {
      background: #FEE2E2;
      color: #DC2626;
    }
    .pain-badge.smart {
      background: #DCFCE7;
      color: #16A34A;
    }
    .pain-card-header h3 {
      font-size: 22px;
      font-weight: 700;
    }
    .pain-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .pain-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }
    .pain-item-title {
      font-weight: 700;
      font-size: 15px;
      margin-bottom: 2px;
    }
    .pain-item-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 核心能力概览 (数字化内核) */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .overview-img-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
    }
    .overview-img-wrap img {
      width: 100%;
      height: 480px;
      object-fit: cover;
    }
    .floating-metric-badge {
      position: absolute;
      bottom: 24px;
      left: 24px;
      background: rgba(15, 23, 42, 0.88);
      backdrop-filter: blur(8px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      gap: 14px;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .floating-metric-badge .val {
      font-size: 24px;
      font-weight: 800;
      color: var(--accent);
    }
    .floating-metric-badge .label {
      font-size: 12px;
      color: #CBD5E1;
      line-height: 1.4;
    }
    .overview-content h2 {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 20px;
    }
    .overview-p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 28px;
    }
    .spec-block {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      margin-bottom: 30px;
    }
    .spec-block h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .spec-block p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 六卡片功能矩阵 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: #EFF6FF;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 22px;
    }
    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .feature-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .feature-tag {
      font-size: 12px;
      background: var(--bg-main);
      color: var(--text-muted);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    /* 5. 热门版本与方案 (3 卡片区) */
    .package-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: stretch;
    }
    .package-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      position: relative;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .package-card.recommended {
      border: 2px solid var(--primary);
      transform: scale(1.03);
      box-shadow: 0 16px 36px -6px rgba(24, 90, 239, 0.16);
      z-index: 2;
    }
    .package-ribbon {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 18px;
      border-radius: 999px;
      letter-spacing: 0.05em;
    }
    .package-card h3 {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 10px;
    }
    .package-card .desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .package-features {
      margin-bottom: 32px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .package-features li {
      font-size: 14px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .package-features li::before {
      content: "✓";
      color: var(--accent);
      font-weight: 800;
    }

    /* 6. 深色沉浸式案例与核心理念区 */
    .section-dark {
      background: #0B132B;
      color: #FFFFFF;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }
    .dark-case-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .dark-case-content h3 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 18px;
      color: #F8FAFC;
    }
    .dark-case-content p {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .dark-metrics-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 32px;
    }
    .dark-metric-box {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px 16px;
      border-radius: var(--radius-md);
      text-align: center;
    }
    .dark-metric-box .num {
      font-size: 26px;
      font-weight: 800;
      color: #38BDF8;
      margin-bottom: 4px;
    }
    .dark-metric-box .txt {
      font-size: 12px;
      color: #94A3B8;
    }
    .dark-case-preview {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .dark-case-preview img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 7. 标杆校区落地实操故事 */
    .story-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
    }
    .story-media img {
      width: 100%;
      height: 100%;
      min-height: 420px;
      object-fit: cover;
    }
    .story-body {
      padding: 48px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .story-tag {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      display: inline-block;
    }
    .story-quote {
      font-size: 20px;
      font-weight: 700;
      line-height: 1.5;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .story-detail {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .story-author {
      display: flex;
      align-items: center;
      gap: 16px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .story-author-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .story-author-info p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 8. 核心业务指标数据条 */
    .stats-strip {
      background: linear-gradient(135deg, var(--primary) 0%, #0c3ea8 100%);
      color: #FFFFFF;
      padding: 56px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-item .val {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 8px;
      letter-spacing: -0.02em;
    }
    .stat-item .label {
      font-size: 15px;
      color: #E2E8F0;
      font-weight: 500;
    }

    /* 9. 多维度客户原声评价区 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-stars {
      color: #F59E0B;
      font-size: 16px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }
    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .reviewer-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;
    }
    .reviewer-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .reviewer-role {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 10. 行业资讯与政策指南区 */
    .news-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
    .news-featured {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
    }
    .news-featured img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }
    .news-featured-content {
      padding: 32px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-featured-content .date {
      font-size: 13px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 10px;
    }
    .news-featured-content h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-featured-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .news-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .news-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .news-item:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }
    .news-item .date {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 6px;
    }
    .news-item h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .news-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. FAQ 手风琴区 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .faq-trigger {
      width: 100%;
      background: transparent;
      border: none;
      padding: 22px 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      text-align: left;
    }
    .faq-trigger svg {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      fill: var(--text-muted);
      flex-shrink: 0;
    }
    .faq-item.active .faq-trigger svg {
      transform: rotate(180deg);
      fill: var(--primary);
    }
    .faq-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
      background: #FAFCFF;
    }
    .faq-content {
      padding: 0 28px 24px 28px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px solid rgba(226, 232, 240, 0.6);
      padding-top: 16px;
    }

    /* 12. 服务承诺与安全保障条 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-card {
      background: rgba(24, 90, 239, 0.03);
      border: 1px solid rgba(24, 90, 239, 0.12);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      transition: var(--transition);
    }
    .guarantee-card:hover {
      background: #FFFFFF;
      box-shadow: var(--shadow-card);
      border-color: var(--primary);
    }
    .guarantee-icon {
      width: 48px;
      height: 48px;
      margin: 0 auto 16px auto;
      border-radius: 50%;
      background: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .guarantee-card h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .guarantee-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 13. 底部预约试用表单 CTA 区 */
    .cta-banner-wrap {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .cta-banner-text h2 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
    }
    .cta-banner-text p {
      font-size: 15px;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .cta-form {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-main);
      box-shadow: var(--shadow-card);
    }
    .cta-form h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 20px;
      text-align: center;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-muted);
    }
    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(24, 90, 239, 0.1);
    }
    .btn-submit {
      width: 100%;
      height: 46px;
      background: var(--primary);
      color: #FFFFFF;
      border: none;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 15px;
      cursor: pointer;
      transition: var(--transition);
      margin-top: 8px;
    }
    .btn-submit:hover {
      background: var(--primary-hover);
    }

    /* 移动端吸底固定转化条 */
    .mobile-fixed-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      padding: 10px 16px;
      z-index: 998;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
      justify-content: space-between;
      align-items: center;
      gap: 12px;
    }
    .mobile-fixed-bar .call-btn {
      flex: 1;
      height: 44px;
      border: 1px solid var(--border-color);
      background: #F8FAFC;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .mobile-fixed-bar .apply-btn {
      flex: 2;
      height: 44px;
      background: var(--primary);
      color: #FFFFFF;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
    }

    /* 页脚 */
    .footer {
      background: #090E1A;
      color: #94A3B8;
      padding: 72px 0 32px 0;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-brand h4 {
      color: #FFFFFF;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .footer-brand p {
      line-height: 1.8;
      font-size: 13px;
      color: #64748B;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      color: #64748B;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .overview-grid, .dark-case-grid, .story-card, .cta-banner-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .features-grid, .package-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .package-card.recommended {
        transform: none;
      }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-menu { display: none; }
      .nav-wrap { height: 64px; }
      .section { padding: 56px 0; }
      .hero-banner { padding: 40px 0 60px 0; }
      .hero-content h1 { font-size: 32px; }
      .section-title { font-size: 26px; }
      .pain-grid, .features-grid, .package-grid, .news-container, .guarantee-grid, .reviews-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .story-card {
        grid-template-columns: 1fr;
      }
      .story-body {
        padding: 28px 20px;
      }
      .cta-banner-wrap {
        padding: 36px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .mobile-fixed-bar {
        display: flex;
      }
      body {
        padding-bottom: 64px;
      }
    }

    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }