:root {
      --primary: #ff4d00;
      --primary-hover: #e04400;
      --secondary: #0052ff;
      --secondary-dark: #003ebd;
      --accent-yellow: #ffb800;
      --accent-cyan: #00d2b4;
      --dark-text: #111827;
      --body-text: #374151;
      --muted-text: #6b7280;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --border-color: #e5e7eb;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-lg: 0 20px 30px -10px rgba(0,0,0,0.12);
      --radius: 12px;
      --transition: all 0.28s ease;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-light);
      color: var(--body-text);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--dark-text);
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 180px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-text {
      font-size: 1.35rem;
      font-weight: 900;
      color: var(--dark-text);
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--dark-text);
      padding: 8px 14px;
      border-radius: 6px;
      position: relative;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: #fff4f0;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: 8px;
      cursor: pointer;
      border: 2px solid transparent;
      transition: var(--transition);
      text-align: center;
      white-space: nowrap;
    }

    .btn-contrast {
      background-color: var(--primary);
      color: #ffffff;
      border-color: var(--dark-text);
      box-shadow: 3px 3px 0px var(--dark-text);
    }

    .btn-contrast:hover {
      background-color: var(--primary-hover);
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--dark-text);
      color: #ffffff;
    }

    .btn-outline {
      background-color: transparent;
      color: var(--dark-text);
      border: 2px solid var(--dark-text);
    }

    .btn-outline:hover {
      background-color: var(--dark-text);
      color: #ffffff;
    }

    .btn-secondary {
      background-color: var(--secondary);
      color: #ffffff;
      border: 2px solid var(--dark-text);
      box-shadow: 3px 3px 0px var(--dark-text);
    }

    .btn-secondary:hover {
      background-color: var(--secondary-dark);
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--dark-text);
      color: #ffffff;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      color: var(--dark-text);
      cursor: pointer;
    }

    /* 首屏 Hero - 严格无图，纯CSS明艳撞色 */
    .hero-section {
      background: linear-gradient(135deg, #fff7ed 0%, #eff6ff 100%);
      padding: 70px 0 60px;
      border-bottom: 2px solid var(--dark-text);
      position: relative;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: #ffedd5;
      color: var(--primary);
      border: 1px solid #fdba74;
      padding: 6px 14px;
      border-radius: 50px;
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--dark-text);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--body-text);
      margin-bottom: 32px;
      max-width: 600px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 36px;
    }

    .btn-hero-large {
      padding: 14px 34px;
      font-size: 1.1rem;
      border-radius: 10px;
    }

    .hero-perks {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--dark-text);
    }

    .hero-perk-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .hero-perk-item svg {
      width: 18px;
      height: 18px;
      fill: var(--primary);
    }

    /* 右侧纯几何科技面板 */
    .hero-visual-board {
      background: #ffffff;
      border: 3px solid var(--dark-text);
      box-shadow: 10px 10px 0px var(--dark-text);
      border-radius: 16px;
      padding: 24px;
    }

    .board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 2px solid var(--border-color);
      padding-bottom: 14px;
      margin-bottom: 18px;
    }

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

    .board-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1px solid var(--dark-text);
    }

    .dot-red { background: #ef4444; }
    .dot-yellow { background: #f59e0b; }
    .dot-green { background: #10b981; }

    .board-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .board-card {
      padding: 16px;
      border-radius: 10px;
      border: 2px solid var(--dark-text);
    }

    .card-orange {
      background-color: #fff7ed;
      border-color: #fb923c;
    }

    .card-blue {
      background-color: #eff6ff;
      border-color: #60a5fa;
    }

    .card-purple {
      background-color: #faf5ff;
      border-color: #c084fc;
    }

    .card-green {
      background-color: #ecfdf5;
      border-color: #34d399;
    }

    .board-card h4 {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 4px;
    }

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

    /* 通用版块标题 */
    .section-wrap {
      padding: 70px 0;
      border-bottom: 1px solid #e5e7eb;
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--secondary);
      background-color: #e0e7ff;
      padding: 4px 12px;
      border-radius: 4px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 900;
      color: var(--dark-text);
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--muted-text);
    }

    /* 平台介绍与关于我们 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 18px;
    }

    .about-text p {
      margin-bottom: 16px;
      font-size: 1rem;
      color: var(--body-text);
    }

    .feature-list {
      list-style: none;
      margin-top: 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .feature-list li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--dark-text);
    }

    .feature-list li::before {
      content: "✔";
      color: var(--primary);
    }

    .about-banner-group {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .about-banner-wrap {
      border: 3px solid var(--dark-text);
      box-shadow: 6px 6px 0px var(--dark-text);
      border-radius: 12px;
      overflow: hidden;
      background: #ffffff;
    }

    /* 数据指标条 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
      background: #ffffff;
      border: 3px solid var(--dark-text);
      box-shadow: 6px 6px 0px var(--dark-text);
      border-radius: 16px;
      padding: 30px;
    }

    .metric-card {
      text-align: center;
      border-right: 1px dashed var(--border-color);
    }

    .metric-card:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 2.4rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--muted-text);
    }

    /* 服务能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 12px;
      padding: 24px;
      box-shadow: 4px 4px 0px var(--dark-text);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: 6px 6px 0px var(--primary);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 900;
      margin-bottom: 18px;
      border: 2px solid var(--dark-text);
    }

    .icon-orange { background: #ffedd5; color: var(--primary); }
    .icon-blue { background: #dbeafe; color: var(--secondary); }
    .icon-green { background: #d1fae5; color: #059669; }
    .icon-purple { background: #f3e8ff; color: #7c3aed; }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--body-text);
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-badge {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 3px 8px;
      background: #f3f4f6;
      border-radius: 4px;
      color: var(--muted-text);
      align-self: flex-start;
    }

    /* 行业方案与模型矩阵 */
    .model-tags-wrap {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 12px;
      padding: 24px;
      margin-bottom: 40px;
      box-shadow: 4px 4px 0px var(--dark-text);
    }

    .tags-title {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 14px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag-item {
      padding: 6px 14px;
      background: #f1f5f9;
      border: 1px solid var(--dark-text);
      border-radius: 6px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--dark-text);
      transition: var(--transition);
    }

    .tag-item:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* 标准制作流程 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .step-card {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 12px;
      padding: 22px;
      position: relative;
      box-shadow: 4px 4px 0px var(--dark-text);
    }

    .step-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: #fed7aa;
      line-height: 1;
      margin-bottom: 8px;
    }

    .step-card h4 {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.88rem;
      color: var(--muted-text);
    }

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

    .case-item {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 4px 4px 0px var(--dark-text);
    }

    .case-media {
      height: 220px;
      background: #f3f4f6;
      border-bottom: 2px solid var(--dark-text);
      overflow: hidden;
    }

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

    .case-item:hover .case-media img {
      transform: scale(1.05);
    }

    .case-content {
      padding: 20px;
    }

    .case-content h4 {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .case-content p {
      font-size: 0.9rem;
      color: var(--muted-text);
    }

    /* 对比评测表格板块 */
    .compare-container {
      background: #ffffff;
      border: 3px solid var(--dark-text);
      border-radius: 16px;
      box-shadow: 8px 8px 0px var(--dark-text);
      padding: 32px;
    }

    .score-banner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #fff7ed;
      border: 2px solid #fdba74;
      border-radius: 10px;
      padding: 20px;
      margin-bottom: 28px;
    }

    .score-left h4 {
      font-size: 1.3rem;
      font-weight: 900;
      color: var(--dark-text);
      margin-bottom: 4px;
    }

    .score-left p {
      font-size: 0.92rem;
      color: var(--muted-text);
    }

    .score-badge {
      text-align: right;
    }

    .score-num {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.2rem;
    }

    .table-responsive {
      overflow-x: auto;
    }

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

    .compare-table th, .compare-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .compare-table th {
      background-color: #f8fafc;
      font-weight: 800;
      color: var(--dark-text);
    }

    .compare-table tr:hover {
      background-color: #fafaf9;
    }

    .col-highlight {
      background-color: #fffaf0;
      font-weight: 700;
      color: var(--primary);
    }

    /* Token 比价看板 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 12px;
      padding: 24px;
      box-shadow: 4px 4px 0px var(--dark-text);
    }

    .token-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }

    .token-title {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--dark-text);
    }

    .token-save {
      font-size: 0.8rem;
      background: #fee2e2;
      color: #ef4444;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }

    .token-price {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .token-origin {
      font-size: 0.85rem;
      color: var(--muted-text);
      text-decoration: line-through;
      margin-bottom: 16px;
    }

    /* 需求匹配与表单 */
    .form-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .form-info-box {
      background: #eff6ff;
      border: 2px solid var(--secondary);
      border-radius: 12px;
      padding: 28px;
    }

    .form-info-box h3 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--secondary-dark);
      margin-bottom: 14px;
    }

    .contact-detail-list {
      list-style: none;
      margin-top: 20px;
    }

    .contact-detail-list li {
      margin-bottom: 12px;
      font-size: 0.95rem;
      color: var(--dark-text);
    }

    .form-container {
      background: #ffffff;
      border: 3px solid var(--dark-text);
      box-shadow: 6px 6px 0px var(--dark-text);
      border-radius: 16px;
      padding: 30px;
    }

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

    .form-label {
      display: block;
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.95rem;
      border: 2px solid var(--dark-text);
      border-radius: 8px;
      background-color: #fff;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.2);
    }

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

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

    .review-card {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 12px;
      padding: 24px;
      box-shadow: 4px 4px 0px var(--dark-text);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.94rem;
      color: var(--body-text);
      margin-bottom: 18px;
      font-style: italic;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #fed7aa;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      border: 2px solid var(--dark-text);
    }

    .reviewer-name {
      font-weight: 800;
      color: var(--dark-text);
      font-size: 0.95rem;
    }

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

    /* FAQ 折叠面板 */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 10px;
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 3px 3px 0px var(--dark-text);
    }

    .faq-header {
      padding: 16px 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 800;
      font-size: 1.05rem;
      color: var(--dark-text);
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 900;
      color: var(--primary);
      transition: transform 0.2s ease;
    }

    .faq-content {
      padding: 0 20px 16px;
      font-size: 0.95rem;
      color: var(--body-text);
      display: none;
      line-height: 1.6;
    }

    .faq-item.active .faq-content {
      display: block;
    }

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

    /* 资讯与百科文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 16px;
      margin-bottom: 24px;
    }

    .article-pill {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 8px;
      padding: 14px;
      box-shadow: 3px 3px 0px var(--dark-text);
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--dark-text);
      display: block;
      transition: var(--transition);
    }

    .article-pill:hover {
      background: #ffedd5;
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border: 3px solid var(--dark-text);
      box-shadow: 8px 8px 0px var(--dark-text);
      border-radius: 16px;
      padding: 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .partner-content h3 {
      font-size: 1.8rem;
      font-weight: 900;
      margin-bottom: 10px;
      color: #fbbf24;
    }

    .partner-content p {
      font-size: 1.05rem;
      color: #e0e7ff;
      max-width: 650px;
    }

    /* 友情链接 */
    .links-block {
      background: #ffffff;
      border: 2px solid var(--dark-text);
      border-radius: 10px;
      padding: 20px;
      margin-top: 50px;
    }

    .links-title {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 12px;
    }

    .links-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .links-flex a {
      font-size: 0.88rem;
      color: var(--muted-text);
      text-decoration: underline;
    }

    .links-flex a:hover {
      color: var(--primary);
    }

    /* 页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #cbd5e1;
      padding: 60px 0 30px;
      border-top: 3px solid var(--dark-text);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.1rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.9rem;
      line-height: 1.6;
      margin-bottom: 12px;
      color: #94a3b8;
    }

    .footer-list {
      list-style: none;
    }

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

    .footer-list a {
      color: #94a3b8;
      font-size: 0.9rem;
    }

    .footer-list a:hover {
      color: #ffffff;
    }

    .footer-qrcode-wrap {
      width: 100px;
      height: 100px;
      background: #ffffff;
      padding: 4px;
      border-radius: 6px;
      margin-top: 10px;
    }

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 悬浮客服面板 */
    .floating-cs {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.2rem;
      border: 2px solid var(--dark-text);
      box-shadow: 3px 3px 0px var(--dark-text);
      cursor: pointer;
      position: relative;
    }

    .float-qrcode-card {
      position: absolute;
      right: 60px;
      bottom: 0;
      width: 140px;
      background: #ffffff;
      border: 2px solid var(--dark-text);
      box-shadow: 4px 4px 0px var(--dark-text);
      border-radius: 8px;
      padding: 10px;
      text-align: center;
      display: none;
    }

    .float-btn:hover .float-qrcode-card {
      display: block;
    }

    .float-qrcode-card p {
      font-size: 0.75rem;
      color: var(--dark-text);
      font-weight: 700;
      margin-top: 4px;
    }

    /* 响应式样式适配 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .about-grid, .form-layout {
        grid-template-columns: 1fr;
      }
      .metrics-bar, .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid, .token-grid, .review-grid {
        grid-template-columns: 1fr 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .partner-banner {
        flex-direction: column;
        text-align: center;
        gap: 20px;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 2px solid var(--dark-text);
        padding: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        width: 100%;
        display: block;
        padding: 10px 16px;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 2rem;
      }
      .board-grid, .metrics-bar, .process-timeline, .case-grid, .token-grid, .review-grid {
        grid-template-columns: 1fr;
      }
      .feature-list {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .score-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
      .header-action .btn-outline {
        display: none;
      }
    }