:root {
      --primary: #D32F2F;
      --primary-hover: #B71C1C;
      --primary-light: #FFEBEE;
      --primary-glow: rgba(211, 47, 47, 0.12);
      --accent: #E53935;
      --accent-warm: #FF5722;
      --gold: #D97706;
      --text-main: #1E293B;
      --text-muted: #475569;
      --text-light: #64748B;
      --bg-page: #FAF9F8;
      --bg-card: #FFFFFF;
      --bg-subtle: #FFF5F5;
      --border-color: #F1E5E5;
      --border-focus: #E53935;
      --shadow-sm: 0 2px 8px rgba(211, 47, 47, 0.05);
      --shadow-md: 0 8px 24px rgba(211, 47, 47, 0.08);
      --shadow-lg: 0 16px 36px rgba(211, 47, 47, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --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, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      font-size: 1.25rem;
      color: var(--primary);
    }

    .brand-logo-wrap img.ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
    }

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

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

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

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(229, 57, 53, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
      box-shadow: 0 6px 20px rgba(229, 57, 53, 0.4);
      transform: translateY(-1px);
      color: #FFFFFF;
    }

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

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

    .btn-lg {
      padding: 14px 32px;
      font-size: 1.05rem;
      border-radius: var(--radius-md);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 区域通用标题 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

    .section-bg-alt {
      background-color: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 5px 14px;
      background-color: var(--primary-light);
      color: var(--primary);
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: 50px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
      border: 1px solid rgba(211, 47, 47, 0.2);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.35;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 Hero (严格无图片) */
    .hero-section {
      padding: 85px 0 95px 0;
      background: radial-gradient(circle at 50% 20%, #FFF0F0 0%, #FAF9F8 70%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      text-align: center;
    }

    .hero-badge-group {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      padding: 6px 18px;
      border-radius: 50px;
      border: 1px solid rgba(229, 57, 53, 0.3);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-badge-tag {
      background: var(--primary);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 20px;
    }

    .hero-badge-text {
      font-size: 0.88rem;
      color: var(--text-main);
      font-weight: 600;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      color: #111827;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

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

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 860px;
      margin: 0 auto 34px auto;
      line-height: 1.7;
    }

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

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }

    .metric-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(211, 47, 47, 0.3);
    }

    .metric-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 关于我们与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-content-box p {
      font-size: 1.02rem;
      color: var(--text-muted);
      margin-bottom: 18px;
    }

    .about-feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin: 26px 0;
    }

    .about-feat-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      background: var(--bg-subtle);
      padding: 14px;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary);
    }

    .about-feat-title {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
      margin-bottom: 2px;
    }

    .about-feat-desc {
      font-size: 0.85rem;
      color: var(--text-light);
    }

    .about-media-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #FFF;
    }

    /* 卡片与网格 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(211, 47, 47, 0.4);
    }

    .feature-icon-badge {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 18px;
      border: 1px solid rgba(211, 47, 47, 0.15);
    }

    .feature-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .feature-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 16px;
    }

    .tag-pill {
      font-size: 0.75rem;
      background: #F1F5F9;
      color: #334155;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 一站式制作场景展示 */
    .scenario-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }

    .scenario-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .scenario-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
    }

    .scenario-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .scenario-badge {
      font-size: 0.75rem;
      background: var(--primary-light);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    .scenario-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 行业方案与图文区 */
    .solution-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;
    }

    .solution-img-box {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #ECEFF1;
    }

    .solution-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

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

    .solution-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .solution-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .solution-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 多模型矩阵标签云 */
    .model-matrix-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

    .matrix-tags-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-tag {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

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

    .process-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      position: relative;
    }

    .process-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #FFFFFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin: 0 auto 14px auto;
      font-size: 0.95rem;
    }

    .process-card h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    /* 对比评测表格与评分大卡 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #FFF5F5 0%, #FFFFFF 100%);
      border: 2px solid rgba(229, 57, 53, 0.3);
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: var(--shadow-sm);
    }

    .eval-rating-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .eval-score-circle {
      width: 90px;
      height: 90px;
      background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
      color: #FFFFFF;
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(229, 57, 53, 0.35);
    }

    .eval-score-num {
      font-size: 1.8rem;
      font-weight: 900;
      line-height: 1;
    }

    .eval-score-max {
      font-size: 0.75rem;
      opacity: 0.9;
    }

    .eval-rating-text h3 {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .eval-stars {
      color: #F59E0B;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

    .eval-table-container {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

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

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

    .eval-table tr:last-child td {
      border-bottom: none;
    }

    .eval-table .highlight-col {
      background: #FFFDFD;
      font-weight: 600;
      color: var(--primary);
    }

    .status-badge-good {
      color: #16A34A;
      font-weight: 700;
    }

    /* 需求匹配器 */
    .matcher-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .matcher-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 24px;
    }

    .matcher-box {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      background: var(--bg-page);
      cursor: pointer;
      transition: var(--transition);
    }

    .matcher-box:hover {
      border-color: var(--primary);
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
    }

    .matcher-box h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--primary);
    }

    .matcher-box p {
      font-size: 0.86rem;
      color: var(--text-muted);
    }

    /* 用户评论 */
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-body {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .user-avatar-initial {
      width: 42px;
      height: 42px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .user-meta-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }

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

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

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(211, 47, 47, 0.4);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      background: none;
      border: none;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #FCFAFA;
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-answer {
      max-height: 240px;
      border-top-color: var(--border-color);
    }

    .faq-answer-inner {
      padding: 18px 22px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 资讯文章列表与百科 */
    .article-link-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .article-item-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 18px 20px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
    }

    .article-item-card:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }

    .article-title-text {
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .article-arrow {
      color: var(--primary);
      font-weight: 700;
    }

    /* 表单与联系我们 */
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .info-row {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 22px;
    }

    .info-icon {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    .info-detail h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

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

    .qr-box {
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .qr-img-wrap {
      width: 110px;
      height: 110px;
      border: 1px solid var(--border-color);
      padding: 6px;
      background: #FFFFFF;
      border-radius: var(--radius-sm);
    }

    .qr-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .form-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

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

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.92rem;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-sm);
      outline: none;
      transition: var(--transition);
      background: #FCFAFA;
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.12);
    }

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

    /* 页脚 */
    .site-footer {
      background: #111827;
      color: #94A3B8;
      padding: 60px 0 30px 0;
      border-top: 3px solid var(--primary);
      font-size: 0.9rem;
    }

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

    .footer-brand h4 {
      color: #FFFFFF;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      line-height: 1.6;
      margin-bottom: 16px;
      font-size: 0.88rem;
    }

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

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

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

    .footer-links li a {
      color: #94A3B8;
    }

    .footer-links li a:hover {
      color: #FFFFFF;
    }

    .friendly-links-wrap {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friendly-links-wrap h5 {
      color: #CBD5E1;
      font-size: 0.9rem;
      margin-bottom: 12px;
    }

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

    .links-flex a {
      color: #94A3B8;
      font-size: 0.85rem;
    }

    .links-flex a:hover {
      color: #EF4444;
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 20px;
      text-align: center;
      font-size: 0.82rem;
      color: #64748B;
    }

    /* 浮动工具栏 */
    .float-toolbar {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      color: var(--primary);
      font-weight: 700;
      transition: var(--transition);
    }

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

    /* 响应式样式 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        padding: 10px 0;
        width: 100%;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
      }
      .about-grid,
      .contact-layout {
        grid-template-columns: 1fr;
      }
      .grid-3,
      .grid-4,
      .grid-2,
      .matcher-grid,
      .article-link-list,
      .process-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        align-items: flex-start;
      }
    }