:root {
      --bg-main: #f8fafc;
      --bg-alt: #f1f5f9;
      --surface: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --primary: #2563eb;
      --accent-pop: #ff0055;
      --accent-lime: #00e599;
      --accent-purple: #7928ca;
      --accent-amber: #f59e0b;
      --border-color: #e2e8f0;
      --border-pop: #0f172a;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-pop: 4px 4px 0px #0f172a;
      --shadow-pop-lg: 6px 6px 0px #0f172a;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    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;
      -webkit-font-smoothing: antialiased;
    }

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

    /* 容器规范统一贯穿全页 */
    .site-container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--border-pop);
    }

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

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

    .logo-container {
      display: flex;
      align-items: center;
      max-width: 140px;
    }

    .logo-container img {
      max-height: 44px;
      width: auto;
      display: block;
    }

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

    .nav-links li a {
      display: block;
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      background: #e0f2fe;
      color: var(--primary);
    }

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

    .btn-action-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      background: var(--accent-pop);
      color: #ffffff !important;
      font-weight: 800;
      font-size: 14px;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      box-shadow: 2px 2px 0 var(--border-pop);
      cursor: pointer;
    }

    .btn-action-primary:hover {
      transform: translate(-2px, -2px);
      box-shadow: 4px 4px 0 var(--border-pop);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 2px solid var(--border-pop);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      font-size: 18px;
      font-weight: bold;
      cursor: pointer;
    }

    /* 模块通用样式 */
    .section-block {
      padding: 72px 0;
      border-bottom: 2px solid var(--border-pop);
    }

    .section-alt {
      background-color: var(--bg-alt);
    }

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

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 13px;
      font-weight: 900;
      text-transform: uppercase;
      letter-spacing: 1px;
      border: 2px solid var(--border-pop);
      border-radius: 999px;
      margin-bottom: 12px;
      background: var(--accent-lime);
      color: var(--text-main);
      box-shadow: 2px 2px 0 var(--border-pop);
    }

    .section-title {
      font-size: 32px;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

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

    /* Hero 首屏 - 纯几何与撞色代码构建，严禁图片 */
    .hero-section {
      padding: 80px 0 90px;
      background: linear-gradient(135deg, #fef9c3 0%, #ede9fe 50%, #dbeafe 100%);
      border-bottom: 3px solid var(--border-pop);
      position: relative;
      overflow: hidden;
    }

    .hero-layout {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: 50px;
      font-size: 14px;
      font-weight: 800;
      color: var(--text-main);
      box-shadow: var(--shadow-pop);
      margin-bottom: 24px;
    }

    .badge-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent-pop);
      display: inline-block;
    }

    .hero-title {
      font-size: 46px;
      font-weight: 950;
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -1px;
      color: #0f172a;
    }

    .hero-title .highlight-box {
      background: var(--accent-lime);
      padding: 2px 12px;
      border: 2px solid var(--border-pop);
      border-radius: 12px;
      box-shadow: 3px 3px 0 var(--border-pop);
      display: inline-block;
      margin-top: 6px;
    }

    .hero-summary {
      font-size: 18px;
      color: #334155;
      font-weight: 500;
      max-width: 760px;
      margin: 0 auto 36px;
    }

    .hero-buttons {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 16px 36px;
      background: var(--primary);
      color: #ffffff;
      font-size: 18px;
      font-weight: 900;
      border: 3px solid var(--border-pop);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop-lg);
    }

    .btn-hero-portal:hover {
      transform: translate(-3px, -3px);
      box-shadow: 8px 8px 0 var(--border-pop);
      background: #1d4ed8;
      color: #ffffff;
    }

    .btn-hero-sub {
      display: inline-flex;
      align-items: center;
      padding: 16px 32px;
      background: #ffffff;
      color: var(--text-main);
      font-size: 18px;
      font-weight: 900;
      border: 3px solid var(--border-pop);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
    }

    .btn-hero-sub:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--border-pop);
      background: #f8fafc;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .stat-card-clean {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 18px;
      text-align: center;
      box-shadow: var(--shadow-pop);
    }

    .stat-card-clean .stat-number {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-card-clean .stat-text {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 平台介绍与关于我们 */
    .about-card-banner {
      background: #ffffff;
      border: 3px solid var(--border-pop);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-pop-lg);
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 26px;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .about-content p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 15px;
    }

    .feature-check-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 24px;
    }

    .feature-check-list li {
      font-size: 14px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .feature-check-list li::before {
      content: "✓";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 20px;
      height: 20px;
      background: var(--accent-lime);
      border: 2px solid var(--border-pop);
      border-radius: 50%;
      font-size: 12px;
      font-weight: 900;
    }

    .about-side-box {
      background: #fdf2f8;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
    }

    .badge-cloud-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }

    .tag-model-bubble {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: 6px;
      padding: 4px 10px;
      font-size: 12px;
      font-weight: 800;
      box-shadow: 2px 2px 0 var(--border-pop);
    }

    /* 服务与制作场景网格 */
    .services-matrix-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .service-brick-card {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .service-brick-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: 6px 6px 0 var(--border-pop);
    }

    .service-brick-card.highlight-bg-1 { background: #fefce8; }
    .service-brick-card.highlight-bg-2 { background: #f0fdf4; }
    .service-brick-card.highlight-bg-3 { background: #eff6ff; }
    .service-brick-card.highlight-bg-4 { background: #faf5ff; }

    .card-brick-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;
    }

    .card-brick-header .service-title {
      font-size: 18px;
      font-weight: 900;
    }

    .card-brick-header .badge-mini {
      background: var(--border-pop);
      color: #ffffff;
      padding: 3px 8px;
      font-size: 11px;
      font-weight: 800;
      border-radius: 4px;
    }

    .service-brick-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.5;
    }

    .card-brick-meta {
      border-top: 2px dashed var(--border-color);
      padding-top: 12px;
      font-size: 12px;
      font-weight: 700;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 流程图 Steps */
    .process-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-node-item {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      position: relative;
    }

    .node-idx-badge {
      width: 36px;
      height: 36px;
      background: var(--accent-pop);
      color: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 16px;
      margin-bottom: 16px;
      box-shadow: 2px 2px 0 var(--border-pop);
    }

    .node-title {
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .node-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 评测与对比板块 - 明确 9.9分 与五星 */
    .benchmark-board {
      background: #ffffff;
      border: 3px solid var(--border-pop);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-pop-lg);
    }

    .score-summary-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: #fffbeb;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 20px 30px;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .score-rating-lead {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .score-digital {
      font-size: 48px;
      font-weight: 950;
      color: #ea580c;
      line-height: 1;
    }

    .score-subtexts {
      display: flex;
      flex-direction: column;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 20px;
      letter-spacing: 2px;
    }

    .score-desc {
      font-size: 14px;
      font-weight: 800;
      color: var(--text-main);
    }

    .score-tag-badge {
      padding: 6px 16px;
      background: var(--accent-lime);
      border: 2px solid var(--border-pop);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 900;
      box-shadow: 2px 2px 0 var(--border-pop);
    }

    .table-scroll-box {
      overflow-x: auto;
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    .comparison-table th, 
    .comparison-table td {
      padding: 16px 20px;
      border: 2px solid var(--border-pop);
    }

    .comparison-table th {
      background: #f1f5f9;
      font-weight: 900;
      font-size: 15px;
    }

    .comparison-table td {
      font-size: 14px;
      font-weight: 600;
    }

    .col-highlight {
      background: #f0fdf4;
      color: #166534;
      font-weight: 800;
    }

    /* 案例中心 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .case-brick-item {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
    }

    .case-img-wrap {
      width: 100%;
      overflow: hidden;
      border-bottom: 2px solid var(--border-pop);
      background: #e2e8f0;
    }

    .case-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }

    .case-img-wrap:hover img {
      transform: scale(1.02);
    }

    .case-text-wrap {
      padding: 20px;
    }

    .case-text-wrap h4 {
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .case-text-wrap p {
      font-size: 14px;
      color: var(--text-muted);
    }

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

    .review-user-card {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
    }

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

    .user-avatar-symbol {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: 2px solid var(--border-pop);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 16px;
      color: #ffffff;
    }

    .user-meta-info h5 {
      font-size: 16px;
      font-weight: 900;
    }

    .user-meta-info span {
      font-size: 12px;
      color: var(--text-light);
      font-weight: 600;
    }

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

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

    .faq-item-tile {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
    }

    .faq-question-btn {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: transparent;
      border: none;
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-indicator {
      font-size: 20px;
      font-weight: 900;
      transition: transform 0.2s ease;
    }

    .faq-answer-block {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
      display: none;
    }

    .faq-item-tile.is-active .faq-answer-block {
      display: block;
    }

    .faq-item-tile.is-active .faq-indicator {
      transform: rotate(45deg);
    }

    /* 表单与需求匹配 */
    .form-container-box {
      background: #ffffff;
      border: 3px solid var(--border-pop);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-pop-lg);
      max-width: 780px;
      margin: 0 auto;
    }

    .custom-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-span-full {
      grid-column: 1 / -1;
    }

    .field-group label {
      display: block;
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .form-control-input, 
    .form-control-select, 
    .form-control-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-family: inherit;
      background: #f8fafc;
      transition: var(--transition);
    }

    .form-control-input:focus, 
    .form-control-select:focus, 
    .form-control-textarea:focus {
      outline: none;
      background: #ffffff;
      box-shadow: 3px 3px 0 var(--border-pop);
    }

    .form-control-textarea {
      min-height: 110px;
      resize: vertical;
    }

    .btn-submit-form {
      width: 100%;
      padding: 16px;
      background: var(--accent-pop);
      color: #ffffff;
      font-size: 16px;
      font-weight: 900;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
      cursor: pointer;
    }

    .btn-submit-form:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--border-pop);
    }

    /* 资讯与友情链接 */
    .news-card-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 24px;
    }

    .news-content-box {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
    }

    .news-title-lead {
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 16px;
      border-bottom: 2px solid var(--border-pop);
      padding-bottom: 8px;
    }

    .news-link-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .news-link-list li a {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      background: #f8fafc;
      border: 1px solid var(--border-color);
    }

    .news-link-list li a:hover {
      background: #e0f2fe;
      border-color: var(--primary);
    }

    /* 联系与客服 */
    .contact-card-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 20px;
    }

    .contact-item-panel {
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow-pop);
    }

    .contact-qr-wrap {
      max-width: 150px;
      margin: 0 auto 16px;
      border: 2px solid var(--border-pop);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    .contact-qr-wrap img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 底部通用规范与对齐 */
    .site-footer {
      background: #0f172a;
      color: #f8fafc;
      border-top: 3px solid var(--border-pop);
      padding: 60px 0 30px;
    }

    .footer-top-row {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid #334155;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 18px;
    }

    .footer-col p {
      color: #94a3b8;
      font-size: 14px;
      margin-bottom: 12px;
      max-width: 380px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-list a {
      color: #cbd5e1;
      font-size: 14px;
    }

    .footer-links-list a:hover {
      color: var(--accent-lime);
    }

    .friendly-links-flow {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friendly-links-flow a {
      display: inline-block;
      padding: 4px 10px;
      background: #1e293b;
      color: #cbd5e1;
      border-radius: 4px;
      font-size: 13px;
      border: 1px solid #334155;
    }

    .friendly-links-flow a:hover {
      background: #334155;
      color: #ffffff;
    }

    .footer-bottom-copyright {
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #94a3b8;
    }

    /* 浮动工具栏 */
    .floating-toolbelt {
      position: fixed;
      right: 24px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .toolbelt-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 2px solid var(--border-pop);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 14px;
      box-shadow: var(--shadow-pop);
      cursor: pointer;
      color: var(--text-main);
    }

    .toolbelt-btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: 4px 4px 0 var(--border-pop);
      background: var(--accent-lime);
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-track {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-card-banner {
        grid-template-columns: 1fr;
      }
      .review-masonry {
        grid-template-columns: 1fr;
      }
      .footer-top-row {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 2px solid var(--border-pop);
        flex-direction: column;
        padding: 16px 24px;
      }
      .nav-links.is-open {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 10px 0;
      }
      .hero-title {
        font-size: 32px;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .process-track {
        grid-template-columns: 1fr;
      }
      .case-gallery-grid {
        grid-template-columns: 1fr;
      }
      .news-card-wrapper {
        grid-template-columns: 1fr;
      }
      .contact-card-grid {
        grid-template-columns: 1fr;
      }
      .custom-form-grid {
        grid-template-columns: 1fr;
      }
    }