:root {
      --primary: #4f46e5;
      --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
      --holo-gradient: linear-gradient(135deg, #e0e7ff 0%, #fae8ff 35%, #e0f2fe 70%, #fef3c7 100%);
      --holo-border: linear-gradient(90deg, #ec4899, #8b5cf6, #3b82f6, #06b6d4, #10b981);
      --bg-light: #f8faff;
      --bg-card: rgba(255, 255, 255, 0.85);
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: rgba(226, 232, 240, 0.8);
      --card-shadow: 0 10px 30px -5px rgba(99, 102, 241, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
      --hover-shadow: 0 20px 40px -10px rgba(168, 85, 247, 0.18), 0 8px 16px -4px rgba(0, 0, 0, 0.05);
      --radius: 16px;
      --container-width: 1200px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background: var(--bg-light);
      background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(236, 72, 153, 0.08) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(59, 130, 246, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.08) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      font-size: 15px;
    }

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

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: all 0.3s ease;
    }

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

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

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

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

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      color: var(--text-muted);
      font-weight: 500;
      font-size: 14px;
      border-radius: 8px;
      transition: color 0.2s, background 0.2s;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(99, 102, 241, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: 10px;
      font-weight: 600;
      font-size: 14px;
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-holo {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
      position: relative;
      overflow: hidden;
    }

    .btn-holo::after {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: linear-gradient(60deg, transparent, rgba(255, 255, 255, 0.3), transparent);
      transform: rotate(30deg) translateX(-100%);
      transition: transform 0.6s ease;
    }

    .btn-holo:hover::after {
      transform: rotate(30deg) translateX(100%);
    }

    .btn-holo:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(168, 85, 247, 0.45);
      color: #ffffff;
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.9);
      color: var(--text-main);
      border-color: rgba(203, 213, 225, 0.8);
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
    }

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

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-main);
      border-radius: 2px;
      transition: 0.3s;
    }

    /* 镭射幻彩公共类 */
    .holo-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
      border: 1px solid rgba(168, 85, 247, 0.3);
      border-radius: 30px;
      color: #6366f1;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 16px;
      box-shadow: 0 2px 10px rgba(168, 85, 247, 0.1);
    }

    .holo-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--card-shadow);
      position: relative;
      transition: all 0.3s ease;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
    }

    .holo-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--hover-shadow);
      border-color: rgba(168, 85, 247, 0.4);
    }

    .holo-card::before {
      content: '';
      position: absolute;
      inset: -1px;
      border-radius: calc(var(--radius) + 1px);
      padding: 1px;
      background: var(--holo-border);
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
      mask-composite: exclude;
      opacity: 0;
      transition: opacity 0.3s ease;
      pointer-events: none;
    }

    .holo-card:hover::before {
      opacity: 0.8;
    }

    .section-title-wrap {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    .section-subtitle {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: #8b5cf6;
      margin-bottom: 8px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    section {
      padding: 80px 0;
      position: relative;
    }

    /* Hero 首屏 (无图片，纯CSS与科技排版) */
    .hero-section {
      padding: 90px 0 60px;
      position: relative;
      text-align: center;
      background: radial-gradient(circle at 50% 30%, rgba(224, 231, 255, 0.6) 0%, rgba(250, 232, 255, 0.4) 40%, rgba(248, 250, 255, 0) 70%);
    }

    .hero-content {
      max-width: 880px;
      margin: 0 auto;
    }

    .hero-h1 {
      font-size: 44px;
      font-weight: 900;
      letter-spacing: -0.5px;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #4f46e5 0%, #9333ea 50%, #db2777 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }

    .hero-btn-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-btn-group .btn {
      padding: 12px 28px;
      font-size: 15px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .hero-stat-card {
      background: rgba(255, 255, 255, 0.75);
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: 12px;
      padding: 18px 12px;
      backdrop-filter: blur(8px);
      transition: transform 0.25s;
    }

    .hero-stat-card:hover {
      transform: translateY(-3px);
      border-color: rgba(147, 51, 234, 0.3);
    }

    .hero-stat-num {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 2px;
    }

    .hero-stat-num em {
      font-style: normal;
      font-size: 16px;
      color: #ec4899;
    }

    .hero-stat-label {
      font-size: 12px;
      color: var(--text-light);
      font-weight: 500;
    }

    /* 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-top: 20px;
    }

    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }

    .feature-icon-badge {
      width: 24px;
      height: 24px;
      border-radius: 6px;
      background: rgba(99, 102, 241, 0.12);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 12px;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .models-chip-container {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .model-chip {
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(203, 213, 225, 0.7);
      color: var(--text-muted);
      transition: all 0.2s;
    }

    .model-chip:hover {
      border-color: #8b5cf6;
      color: #8b5cf6;
      background: #faf5ff;
    }

    /* 服务与一站式制作场景网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-box {
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .service-box-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .service-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(236, 72, 153, 0.15));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: #6366f1;
      border: 1px solid rgba(168, 85, 247, 0.2);
    }

    .service-box h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
    }

    .service-box p {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.6;
      flex-grow: 1;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 16px;
    }

    .service-tag {
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      background: rgba(241, 245, 249, 0.9);
      color: var(--text-light);
    }

    /* 行业解决方案与流程 */
    .steps-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      position: relative;
      text-align: center;
      padding: 24px 16px;
    }

    .step-number {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #fff;
      font-weight: 800;
      font-size: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    }

    .step-card h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 案例中心 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .case-card {
      padding: 0;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

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

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

    .case-card:hover .case-image-wrap img {
      transform: scale(1.03);
    }

    .case-info {
      padding: 20px;
    }

    .case-info h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .case-info p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .gallery-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .gallery-item {
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #fff;
    }

    .gallery-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      aspect-ratio: 4 / 3;
    }

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

    .compare-header-box {
      padding: 24px 32px;
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(236, 72, 153, 0.08));
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-badge {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .stars-score {
      font-size: 28px;
      font-weight: 900;
      color: #9333ea;
    }

    .stars-visual {
      color: #f59e0b;
      font-size: 18px;
      letter-spacing: 2px;
    }

    .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;
      font-size: 14px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .compare-table td.highlight {
      background: rgba(99, 102, 241, 0.03);
      font-weight: 600;
      color: #4f46e5;
    }

    /* 需求匹配与表单 */
    .match-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      border-radius: 8px;
      border: 1px solid rgba(203, 213, 225, 0.9);
      background: #ffffff;
      color: var(--text-main);
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }

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

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

    .review-card {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }

    .reviewer-meta h5 {
      font-size: 15px;
      font-weight: 700;
    }

    .reviewer-meta span {
      font-size: 12px;
      color: var(--text-light);
    }

    .review-body {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 700;
      font-size: 15px;
      color: var(--text-main);
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 18px;
      transition: transform 0.25s ease;
      color: var(--text-light);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 20px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.6;
      background: #fafcff;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 20px 18px;
      border-top: 1px solid rgba(241, 245, 249, 0.8);
    }

    /* 资讯与友情链接 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .news-link-card {
      display: block;
      padding: 20px;
      border-radius: 12px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      transition: all 0.25s ease;
    }

    .news-link-card:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--card-shadow);
    }

    .news-link-card h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .news-link-card p {
      font-size: 12px;
      color: var(--text-light);
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .friend-links-wrap a {
      display: inline-block;
      padding: 6px 14px;
      background: #f1f5f9;
      border-radius: 6px;
      font-size: 13px;
      color: var(--text-muted);
      border: 1px solid transparent;
    }

    .friend-links-wrap a:hover {
      color: var(--primary);
      background: #ffffff;
      border-color: var(--border-color);
    }

    /* 联系我们与页脚 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .contact-qr-box {
      text-align: center;
      padding: 24px;
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      max-width: 280px;
      margin: 0 auto;
    }

    .contact-qr-box img {
      width: 180px;
      height: 180px;
      object-fit: contain;
      margin-bottom: 12px;
      border-radius: 8px;
    }

    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 32px;
      color: var(--text-muted);
      font-size: 13px;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

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

    .footer-copyright {
      color: var(--text-light);
    }

    /* 悬浮工具栏 */
    .floating-toolbar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      cursor: pointer;
      transition: all 0.2s;
    }

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

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-h1 {
        font-size: 34px;
      }
      .services-grid, .steps-timeline, .reviews-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .gallery-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .match-wrapper, .contact-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        flex-direction: column;
        display: none;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        width: 100%;
        padding: 10px 0;
      }
      .nav-actions {
        width: 100%;
        margin-top: 12px;
        justify-content: flex-start;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .services-grid, .steps-timeline, .cases-grid, .reviews-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .gallery-row {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 26px;
      }
      section {
        padding: 50px 0;
      }
    }