:root {
      --primary: #0062ff;
      --primary-hover: #0050d4;
      --accent: #00c6ff;
      --text-main: #1d2129;
      --text-muted: #4e5969;
      --text-light: #86909c;
      --bg-page: #f8faff;
      --bg-surface: #ffffff;
      --border-color: #e5e8ef;
      --shadow-sm: 0 4px 12px rgba(0, 98, 255, 0.05);
      --shadow-md: 0 8px 24px rgba(0, 98, 255, 0.08);
      --shadow-lg: 0 16px 36px rgba(0, 98, 255, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: radial-gradient(circle at 10% 10%, rgba(0, 198, 255, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 90%, rgba(0, 98, 255, 0.04) 0%, transparent 40%);
      background-attachment: fixed;
    }

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

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

    .brand-logo-wrap {
      max-width: 150px;
      display: flex;
      align-items: center;
    }

    .brand-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .nav-links a:hover {
      color: var(--primary);
      background-color: rgba(0, 98, 255, 0.04);
    }

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

    .btn-nav-primary {
      background: linear-gradient(135deg, #0062ff 0%, #00a2ff 100%);
      color: #ffffff !important;
      padding: 9px 20px !important;
      border-radius: 30px !important;
      font-weight: 600;
      box-shadow: 0 4px 14px rgba(0, 98, 255, 0.25);
    }

    .btn-nav-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(0, 98, 255, 0.35);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px;
      border-radius: 6px;
      cursor: pointer;
    }

    /* 首屏 Hero (无图片规范) */
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(240, 246, 255, 0.6) 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-badge-wrap {
      text-align: center;
      margin-bottom: 20px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 18px;
      background: #eef5ff;
      border: 1px solid #c8dfff;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
    }

    .hero-badge span {
      display: inline-block;
      width: 8px;
      height: 8px;
      background: #00d26a;
      border-radius: 50%;
      margin-right: 8px;
      box-shadow: 0 0 8px #00d26a;
    }

    .hero-title {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 800;
      text-align: center;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .hero-title .highlight {
      color: var(--primary);
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      text-align: center;
      max-width: 840px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-hero-main {
      padding: 16px 38px;
      font-size: 17px;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, #0052d9 0%, #0091ff 100%);
      border-radius: 36px;
      box-shadow: 0 10px 24px rgba(0, 98, 255, 0.35);
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(0, 98, 255, 0.45);
    }

    .btn-hero-sub {
      padding: 15px 32px;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      background: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: 36px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    }

    .btn-hero-sub:hover {
      background: #f0f7ff;
      border-color: var(--primary);
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

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

    .stat-label {
      font-size: 14px;
      color: var(--text-light);
      margin-bottom: 6px;
    }

    .stat-val {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }

    .stat-sub {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 模块通则 */
    .page-section {
      padding: 70px 0;
      position: relative;
    }

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

    .section-tag {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      background: rgba(0, 98, 255, 0.08);
      padding: 4px 14px;
      border-radius: 20px;
      display: inline-block;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-sub {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    /* 平台矩阵卡片 */
    .matrix-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .chip-item {
      background: #ffffff;
      border: 1px solid #dbeafe;
      color: #1e3a8a;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      box-shadow: 0 2px 6px rgba(0, 98, 255, 0.04);
    }

    /* 服务场景网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      border-color: #93c5fd;
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .service-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

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

    /* 一站式制作工作流 */
    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

    .step-number {
      font-size: 28px;
      font-weight: 800;
      color: #bfdbfe;
      line-height: 1;
      margin-bottom: 12px;
    }

    .workflow-step h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

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

    /* 对比评测表 */
    .comparison-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(90deg, #eff6ff 0%, #f0fdf4 100%);
      padding: 20px 28px;
      border-radius: var(--radius-md);
      margin-bottom: 28px;
      border: 1px solid #bfdbfe;
    }

    .rating-score {
      font-size: 32px;
      font-weight: 800;
      color: #0052d9;
    }

    .rating-stars {
      color: #ff9800;
      font-size: 20px;
      letter-spacing: 2px;
    }

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

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .comp-table th, .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .comp-table th {
      background: #f8fafc;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    .comp-table tr:hover td {
      background-color: #f8fbff;
    }

    .highlight-cell {
      background: #f0f7ff;
      color: var(--primary);
      font-weight: 600;
    }

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

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

    .media-box {
      width: 100%;
      background: #e2e8f0;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-box img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .gallery-card:hover .media-box img {
      transform: scale(1.04);
    }

    .gallery-body {
      padding: 20px;
      flex-grow: 1;
    }

    .gallery-body h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

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

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .avatar-mock {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #0062ff, #60a5fa);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
    }

    .user-info h5 {
      font-size: 15px;
      font-weight: 700;
    }

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

    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      background: #ffffff;
    }

    .faq-question:hover {
      background: #f8fafc;
      color: var(--primary);
    }

    .faq-icon-cross {
      font-size: 20px;
      transition: transform 0.3s ease;
      color: var(--text-light);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      background: #fbfdff;
      transition: max-height 0.35s ease, padding 0.35s ease;
      border-top: 1px solid transparent;
    }

    .faq-item.active {
      border-color: #93c5fd;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 18px 24px;
      border-top-color: #f1f5f9;
    }

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

    /* 需求匹配与表单 */
    .form-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .form-info h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .contact-item-group {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .contact-badge-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .contact-badge-item strong {
      color: var(--text-main);
      min-width: 80px;
    }

    .form-fields {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-control-wrap {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-control-wrap label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      background: #f8fafc;
      outline: none;
      transition: all 0.2s ease;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 98, 255, 0.1);
    }

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

    .btn-submit-form {
      background: linear-gradient(135deg, #0062ff 0%, #0091ff 100%);
      color: #ffffff;
      font-weight: 600;
      padding: 14px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 15px;
      transition: all 0.25s ease;
    }

    .btn-submit-form:hover {
      box-shadow: 0 6px 16px rgba(0, 98, 255, 0.3);
      transform: translateY(-2px);
    }

    /* 资讯与友情链接 */
    .articles-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }

    .article-item-chip {
      background: #eff6ff;
      border: 1px solid #bfdbfe;
      color: var(--primary);
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 500;
    }

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 14px;
    }

    .friend-links-box a {
      color: var(--text-muted);
      font-size: 13px;
      background: #f1f5f9;
      padding: 5px 12px;
      border-radius: 4px;
    }

    .friend-links-box a:hover {
      color: var(--primary);
      background: #e2e8f0;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #cbd5e1;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 18px;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: #94a3b8;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 15px;
      margin-bottom: 16px;
      font-weight: 600;
    }

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

    .footer-col ul li a {
      color: #94a3b8;
      font-size: 13px;
    }

    .footer-col ul li a:hover {
      color: #38bdf8;
    }

    .footer-qrcode-wrap {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }

    .footer-qrcode-wrap img {
      width: 100px;
      height: 100px;
      border-radius: 8px;
      background: #ffffff;
      padding: 4px;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

    /* 悬浮客服挂件 */
    .floating-widget {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      position: relative;
      border: 1px solid var(--border-color);
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      transform: scale(1.08);
      border-color: var(--primary);
    }

    .float-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      flex-direction: column;
      align-items: center;
      width: 140px;
      text-align: center;
    }

    .float-qr-popup img {
      width: 110px;
      height: 110px;
      margin-bottom: 6px;
    }

    .float-qr-popup span {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 600;
    }

    .float-btn:hover .float-qr-popup {
      display: flex;
    }

    /* 响应式断点适配 */
    @media (max-width: 992px) {
      .hero-title { font-size: 32px; }
      .services-grid, .gallery-grid, .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-stats-grid, .workflow-grid { grid-template-columns: repeat(2, 1fr); }
      .form-wrapper { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .navbar { height: 60px; }
      .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 16px 0;
      }
      .nav-links.active { display: flex; }
      .nav-links a { width: 100%; text-align: center; padding: 12px 0; }
      .mobile-menu-btn { display: block; }
      .hero-title { font-size: 26px; }
      .services-grid, .gallery-grid, .reviews-grid, .hero-stats-grid, .workflow-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .rating-banner { flex-direction: column; gap: 12px; text-align: center; }
      .floating-widget { right: 14px; bottom: 20px; }
    }