:root {
      --bg-main: #f8fafc;
      --bg-surface: #ffffff;
      --holo-primary: #5c67f5;
      --holo-secondary: #00d2ff;
      --holo-accent: #ff4bb5;
      --holo-gradient: linear-gradient(135deg, rgba(92, 103, 245, 0.12) 0%, rgba(0, 210, 255, 0.1) 50%, rgba(255, 75, 181, 0.08) 100%);
      --holo-bar: linear-gradient(90deg, #5c67f5, #00d2ff, #ff4bb5);
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --border-color: rgba(226, 232, 240, 0.8);
      --border-holo: rgba(92, 103, 245, 0.25);
      --shadow-sm: 0 2px 8px rgba(92, 103, 245, 0.04);
      --shadow-md: 0 8px 24px rgba(92, 103, 245, 0.08);
      --shadow-lg: 0 16px 36px rgba(92, 103, 245, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(at 0% 0%, rgba(92, 103, 245, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(0, 210, 255, 0.05) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(255, 75, 181, 0.03) 0px, transparent 50%);
      background-attachment: fixed;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .holo-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--holo-primary);
      background: linear-gradient(135deg, rgba(92, 103, 245, 0.1), rgba(0, 210, 255, 0.1));
      border: 1px solid var(--border-holo);
      border-radius: 9999px;
      margin-bottom: 16px;
    }

    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 640px;
      margin: 0 auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #5c67f5 0%, #3a47d5 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(92, 103, 245, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(92, 103, 245, 0.45);
      color: #ffffff;
    }

    .btn-outline {
      background: #ffffff;
      color: var(--holo-primary);
      border-color: var(--border-holo);
    }

    .btn-outline:hover {
      background: rgba(92, 103, 245, 0.05);
      border-color: var(--holo-primary);
    }

    /* 顶部导航 */
    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    }

    .navbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      color: var(--holo-primary);
      background: rgba(92, 103, 245, 0.06);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      color: var(--text-main);
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 72px 0 60px;
      text-align: center;
      position: relative;
    }

    .hero-content {
      max-width: 860px;
      margin: 0 auto;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -0.03em;
    }

    .hero-title span {
      background: linear-gradient(135deg, #5c67f5 0%, #00b4d8 50%, #ff4bb5 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.7;
    }

    .hero-buttons {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-holo);
      box-shadow: var(--shadow-md);
      position: relative;
      overflow: hidden;
    }

    .hero-stats::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--holo-bar);
    }

    .stat-item {
      text-align: center;
    }

    .stat-value {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--holo-primary);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 模块通用间距 */
    section {
      padding: 64px 0;
    }

    /* 平台介绍 */
    .platform-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .platform-features {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .platform-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
    }

    .feature-icon-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--holo-primary);
      margin-top: 8px;
      flex-shrink: 0;
    }

    .platform-visual-box {
      background: var(--holo-gradient);
      border: 1px dashed var(--holo-primary);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-tag {
      font-size: 0.8rem;
      padding: 5px 12px;
      background: #ffffff;
      color: var(--text-main);
      border-radius: 6px;
      border: 1px solid var(--border-color);
      font-weight: 500;
    }

    /* 服务能力卡片与一站式制作 */
    .cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 20px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }

    .service-card::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: transparent;
      transition: background 0.3s ease;
    }

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

    .service-card:hover::after {
      background: var(--holo-bar);
    }

    .service-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    /* 标准流程 */
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .step-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 40px;
      height: 40px;
      line-height: 40px;
      border-radius: 50%;
      background: var(--holo-gradient);
      color: var(--holo-primary);
      font-weight: 700;
      margin: 0 auto 16px;
      border: 1px solid var(--border-holo);
    }

    .step-box h3 {
      font-size: 1.1rem;
      margin-bottom: 8px;
    }

    .step-box p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 对比评测 */
    .compare-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-holo);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .score-banner {
      background: var(--holo-gradient);
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      flex-wrap: wrap;
      gap: 16px;
    }

    .score-left {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.25rem;
    }

    .score-number {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--holo-primary);
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 600;
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

    .highlight-col {
      background: rgba(92, 103, 245, 0.03);
      font-weight: 600;
      color: var(--holo-primary);
    }

    /* 案例中心 */
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .showcase-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #e2e8f0;
    }

    .showcase-img-wrap.square {
      aspect-ratio: 1 / 1;
    }

    .showcase-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

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

    .showcase-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .showcase-body h3 {
      font-size: 1.1rem;
      margin-bottom: 8px;
    }

    .showcase-body p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 用户评论 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .testimonial-card p {
      font-size: 0.9rem;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.6;
    }

    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .reviewer-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--holo-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--holo-primary);
      border: 1px solid var(--border-holo);
    }

    .reviewer-meta h4 {
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .reviewer-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠 */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-item.active {
      border-color: var(--border-holo);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-icon {
      transition: transform 0.25s ease;
      font-size: 1.2rem;
      color: var(--holo-primary);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      padding-bottom: 18px;
    }

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

    /* 文章列表 & 资讯 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .article-item-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 12px;
    }

    .article-link {
      font-size: 0.85rem;
      color: var(--holo-primary);
      text-decoration: underline;
    }

    /* 表单区域 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-holo);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .contact-info-col h3 {
      font-size: 1.4rem;
      margin-bottom: 16px;
    }

    .contact-detail-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .contact-detail-item strong {
      color: var(--text-main);
    }

    .qr-container {
      margin-top: 24px;
      display: inline-block;
      text-align: center;
      padding: 12px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }

    .qr-container img {
      width: 130px;
      height: 130px;
      display: block;
      margin-bottom: 8px;
    }

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

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.25s ease;
      background: #ffffff;
    }

    .form-control:focus {
      border-color: var(--holo-primary);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 友情链接与页脚 */
    footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 48px 0 24px;
      border-top: 1px solid #1e293b;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 36px;
    }

    .footer-brand p {
      font-size: 0.85rem;
      line-height: 1.6;
      margin-top: 12px;
      max-width: 360px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 16px;
    }

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links-box a {
      font-size: 0.85rem;
      color: #94a3b8;
    }

    .friend-links-box a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 浮动组件 */
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-holo);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--holo-primary);
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      background: var(--holo-primary);
      color: #ffffff;
      transform: scale(1.05);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .hero-stats {
        grid-template-columns: repeat(2, 1fr);
      }
      .platform-card {
        grid-template-columns: 1fr;
      }
      .workflow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .showcase-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .testimonial-grid {
        grid-template-columns: 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .navbar {
        position: relative;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        display: block;
        padding: 10px;
      }
      .nav-actions {
        display: none;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .showcase-grid {
        grid-template-columns: 1fr;
      }
      .workflow-steps {
        grid-template-columns: 1fr;
      }
      .articles-grid {
        grid-template-columns: 1fr;
      }
    }