:root {
      --primary: #d91b2b;
      --primary-hover: #b81423;
      --primary-light: #fff1f2;
      --primary-accent: #ff4d5e;
      --dark-text: #1f2937;
      --muted-text: #4b5563;
      --light-text: #9ca3af;
      --bg-white: #ffffff;
      --bg-warm: #faf7f5;
      --bg-card: #ffffff;
      --border-color: #f3d4d7;
      --shadow-sm: 0 2px 8px rgba(217, 27, 43, 0.06);
      --shadow-md: 0 8px 24px rgba(217, 27, 43, 0.09);
      --shadow-lg: 0 16px 40px rgba(217, 27, 43, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.28s ease-in-out;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-warm);
      color: var(--dark-text);
      line-height: 1.65;
      overflow-x: hidden;
    }

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

    /* 统一居中容器规范贯穿全页 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶栏导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

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

    .logo-container {
      height: 42px;
      display: flex;
      align-items: center;
    }

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0; /* 严格满足约束 */
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--dark-text);
      border-radius: var(--radius-sm);
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(217, 27, 43, 0.3);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(217, 27, 43, 0.4);
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: transparent;
    }

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

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

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2.5px;
      background-color: var(--dark-text);
      transition: var(--transition);
    }

    /* 首屏 Hero - 严格禁止任何图片，使用艳红科技氛围与纯CSS几何卡片构建 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #ffe9eb 0%, #fff7f7 50%, #faf5f5 100%);
      padding: 64px 0 56px;
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffe3e6;
      color: var(--primary);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 20px;
      border: 1px solid rgba(217, 27, 43, 0.2);
    }

    .badge-dot {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(217, 27, 43, 0.2);
    }

    .hero-title {
      font-size: 2.6rem;
      line-height: 1.25;
      font-weight: 900;
      color: #111827;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: var(--primary);
      position: relative;
    }

    .hero-desc {
      font-size: 1.1rem;
      color: var(--muted-text);
      margin-bottom: 30px;
      max-width: 580px;
      line-height: 1.7;
    }

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

    .hero-portal-btn {
      padding: 13px 32px;
      font-size: 1.05rem;
      border-radius: 8px;
    }

    .hero-features-list {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      font-size: 0.9rem;
      color: var(--muted-text);
    }

    .hero-features-list span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .hero-features-list span svg {
      width: 16px;
      height: 16px;
      fill: var(--primary);
    }

    /* 首屏纯CSS科技数据卡片 */
    .hero-visual-card {
      background: #ffffff;
      border: 1px solid #ffd4d8;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .card-top-tag {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      border-bottom: 1px dashed var(--border-color);
      padding-bottom: 16px;
    }

    .model-matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 24px;
    }

    .matrix-node {
      background: #fff8f8;
      border: 1px solid #ffe1e4;
      border-radius: var(--radius-sm);
      padding: 12px 10px;
      text-align: center;
      transition: var(--transition);
    }

    .matrix-node:hover {
      background: #ffe9ec;
      border-color: var(--primary-accent);
      transform: translateY(-2px);
    }

    .matrix-node .node-name {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--dark-text);
    }

    .matrix-node .node-type {
      font-size: 0.75rem;
      color: var(--primary);
      margin-top: 4px;
    }

    .hero-summary-box {
      background: linear-gradient(135deg, #fff2f3 0%, #fffbfb 100%);
      border-radius: var(--radius-md);
      padding: 18px;
      border-left: 4px solid var(--primary);
    }

    .hero-summary-box p {
      font-size: 0.92rem;
      color: var(--dark-text);
      font-weight: 500;
    }

    /* 通用模块结构 */
    .section-wrap {
      padding: 72px 0;
      position: relative;
    }

    .section-wrap.alt-bg {
      background-color: #ffffff;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px;
    }

    .section-badge {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      border: 1px solid #ffd3d7;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #111827;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

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

    /* 平台核心指标展示条 */
    .stats-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -30px;
      position: relative;
      z-index: 10;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px 20px;
      border-radius: var(--radius-md);
      border: 1px solid #f9d4d8;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

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

    .stat-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--dark-text);
    }

    .stat-desc {
      font-size: 0.8rem;
      color: var(--muted-text);
      margin-top: 4px;
    }

    /* 服务与能力网格 */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .service-card {
      background: #ffffff;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .service-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
      border: 1px solid #ffccd1;
    }

    .service-card h3 {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #111827;
    }

    .service-card p {
      font-size: 0.93rem;
      color: var(--muted-text);
      line-height: 1.6;
      margin-bottom: 18px;
    }

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

    .service-tags span {
      font-size: 0.78rem;
      background: #faf3f3;
      padding: 3px 8px;
      border-radius: 4px;
      color: #6b7280;
    }

    /* 场景画廊/案例与物料展示 */
    .materials-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: center;
      margin-bottom: 40px;
    }

    .image-wrapper {
      width: 100%;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #fff;
    }

    .image-wrapper img {
      width: 100%;
      height: auto;
      display: block;
      transition: var(--transition);
      object-fit: contain;
    }

    .image-wrapper:hover img {
      transform: scale(1.02);
    }

    .promo-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 32px;
    }

    .promo-gallery .image-wrapper {
      border-radius: var(--radius-sm);
    }

    /* 流程步骤 */
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .step-item {
      background: #ffffff;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

    .step-item:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }

    .step-badge {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #ffffff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-size: 1.1rem;
    }

    .step-item h4 {
      font-size: 1.05rem;
      margin-bottom: 8px;
      color: #111827;
    }

    .step-item p {
      font-size: 0.85rem;
      color: var(--muted-text);
      line-height: 1.5;
    }

    /* 对比评测专属板块 */
    .review-score-panel {
      background: linear-gradient(135deg, #fff2f4 0%, #ffffff 100%);
      border: 2px solid #ffccd1;
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
    }

    .score-detail {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .score-circle {
      width: 100px;
      height: 100px;
      background: var(--primary);
      color: #fff;
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(217, 27, 43, 0.35);
      flex-shrink: 0;
    }

    .score-circle .score-num {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-circle .score-max {
      font-size: 0.78rem;
      opacity: 0.9;
    }

    .score-texts h3 {
      font-size: 1.45rem;
      font-weight: 800;
      color: #111827;
      margin-bottom: 6px;
    }

    .stars-line {
      color: #ff9800;
      font-size: 1.25rem;
      letter-spacing: 2px;
      margin-bottom: 6px;
    }

    .score-desc {
      font-size: 0.95rem;
      color: var(--muted-text);
    }

    .compare-table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #f6d2d6;
      box-shadow: var(--shadow-sm);
    }

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

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f5e4e6;
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #fff8f8;
      font-weight: 700;
      color: #111827;
    }

    .compare-table th.highlight-col,
    .compare-table td.highlight-col {
      background: #fff3f4;
      color: var(--primary);
      font-weight: 700;
      border-left: 1px solid #ffd3d7;
      border-right: 1px solid #ffd3d7;
    }

    /* Token 比价专区 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

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

    .token-card.popular {
      border-color: var(--primary);
      background: #fffdfd;
    }

    .token-card.popular::before {
      content: "省心首选";
      position: absolute;
      top: 14px;
      right: -32px;
      background: var(--primary);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 4px 36px;
      transform: rotate(45deg);
    }

    .token-model-title {
      font-size: 1.18rem;
      font-weight: 700;
      margin-bottom: 14px;
      color: #111827;
    }

    .price-compare {
      margin-bottom: 16px;
      padding: 12px 0;
      border-top: 1px dashed #f5e4e6;
      border-bottom: 1px dashed #f5e4e6;
    }

    .official-price {
      font-size: 0.85rem;
      color: var(--light-text);
      text-decoration: line-through;
      margin-bottom: 4px;
    }

    .platform-price {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--primary);
    }

    .token-features {
      list-style: none;
      font-size: 0.85rem;
      color: var(--muted-text);
      margin-bottom: 20px;
      text-align: left;
    }

    .token-features li {
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 用户评论卡片 (6条) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #ffffff;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

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

    .quote-mark {
      font-size: 2.2rem;
      color: #ffccd1;
      line-height: 1;
      margin-bottom: 10px;
    }

    .testimonial-body {
      font-size: 0.93rem;
      color: var(--dark-text);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #fbe5e7;
      padding-top: 16px;
    }

    .user-avatar-tag {
      width: 42px;
      height: 42px;
      background: #ffe6e8;
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #111827;
    }

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

    /* FAQ 折叠面板 (不少于 10 条) */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }

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

    .faq-question {
      padding: 18px 22px;
      font-size: 1.02rem;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      color: #111827;
    }

    .faq-question::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--primary);
      font-weight: 400;
      transition: transform 0.25s ease;
    }

    .faq-item.active .faq-question::after {
      content: "-";
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      font-size: 0.92rem;
      color: var(--muted-text);
      line-height: 1.65;
      border-top: 1px solid #fff0f1;
      padding-top: 14px;
    }

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

    /* 资讯与百科标签云 */
    .news-encyclopedia-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .info-box {
      background: #ffffff;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-md);
      padding: 28px;
    }

    .info-box h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: #111827;
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    .news-list li {
      margin-bottom: 14px;
      padding-bottom: 14px;
      border-bottom: 1px dashed #f5e4e6;
    }

    .news-list li:last-child {
      border-bottom: none;
      margin-bottom: 0;
      padding-bottom: 0;
    }

    .news-list a {
      font-size: 0.92rem;
      color: var(--dark-text);
      display: block;
      font-weight: 500;
    }

    .news-list a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

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

    .tag-cloud span {
      background: #fff4f5;
      border: 1px solid #ffd8dc;
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      color: var(--dark-text);
      font-weight: 500;
      transition: var(--transition);
    }

    .tag-cloud span:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    /* 需求匹配与表单区 */
    .matching-form-wrap {
      display: grid;
      grid-template-columns: 1fr 1.15fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-info h3 {
      font-size: 1.55rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: #111827;
    }

    .form-info p {
      font-size: 0.95rem;
      color: var(--muted-text);
      margin-bottom: 24px;
    }

    .contact-spec-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 0.92rem;
      color: var(--dark-text);
    }

    .contact-spec-item strong {
      color: var(--primary);
    }

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

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

    .form-group label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--dark-text);
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid #d1d5db;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      transition: var(--transition);
      background: #fafafa;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(217, 27, 43, 0.12);
    }

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

    /* 加盟代理模块 */
    .agent-banner {
      background: linear-gradient(135deg, #b81423 0%, #d91b2b 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
      box-shadow: var(--shadow-lg);
    }

    .agent-banner h3 {
      font-size: 2rem;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .agent-banner p {
      font-size: 1.05rem;
      opacity: 0.95;
      max-width: 700px;
      margin: 0 auto 30px;
    }

    .agent-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 36px;
      text-align: left;
    }

    .agent-point-card {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: var(--radius-md);
      padding: 20px;
      backdrop-filter: blur(5px);
    }

    .agent-point-card h4 {
      font-size: 1.1rem;
      margin-bottom: 8px;
    }

    .agent-point-card p {
      font-size: 0.88rem;
      margin: 0;
      opacity: 0.9;
    }

    /* 友情链接与文章调用区 */
    .links-block {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 48px;
    }

    .links-block h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    .links-flex a {
      font-size: 0.88rem;
      color: var(--muted-text);
      background: #fdf5f5;
      padding: 5px 12px;
      border-radius: 4px;
      border: 1px solid #fbe5e7;
    }

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

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid #f5d3d7;
      padding: 48px 0 28px;
      color: var(--dark-text);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #111827;
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.88rem;
      color: var(--muted-text);
      margin-bottom: 12px;
      line-height: 1.6;
    }

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

    .footer-links-list li {
      margin-bottom: 9px;
    }

    .footer-links-list a {
      font-size: 0.88rem;
      color: var(--muted-text);
    }

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

    .qr-container {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }

    .qr-container img {
      width: 105px;
      height: 105px;
      border: 1px solid #f6d2d6;
      border-radius: var(--radius-sm);
      padding: 4px;
      background: #fff;
    }

    .footer-bottom {
      border-top: 1px solid #f3d4d7;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: var(--muted-text);
    }

    /* 浮动操作悬浮球 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 40px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      background: #ffffff;
      color: var(--primary);
      border: 1px solid #f6d2d6;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      transition: var(--transition);
      font-size: 1.1rem;
      font-weight: 700;
    }

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

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .stats-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .cards-grid-3,
      .cards-grid-4,
      .testimonial-grid,
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .materials-container,
      .news-encyclopedia-grid,
      .matching-form-wrap,
      .footer-grid,
      .agent-points {
        grid-template-columns: 1fr;
      }
      .review-score-panel {
        flex-direction: column;
        text-align: center;
      }
      .score-detail {
        flex-direction: column;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: flex;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        box-shadow: var(--shadow-md);
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active li {
        width: 100%;
      }
      .nav-links.active li a {
        padding: 10px 0;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 1.9rem;
      }
      .stats-bar,
      .cards-grid-3,
      .cards-grid-4,
      .testimonial-grid,
      .token-grid,
      .promo-gallery {
        grid-template-columns: 1fr;
      }
      .workflow-steps {
        grid-template-columns: 1fr;
      }
      .matching-form-wrap {
        padding: 24px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }