:root {
      --bg-main: #0b0718;
      --bg-card: rgba(22, 14, 46, 0.75);
      --bg-card-hover: rgba(36, 20, 72, 0.9);
      --neon-pink: #ff007f;
      --neon-purple: #9d00ff;
      --neon-cyan: #00f0ff;
      --neon-blue: #0070f3;
      --neon-amber: #ffaa00;
      --text-white: #ffffff;
      --text-gray: #c9c3e6;
      --text-muted: #8b83ba;
      --border-cyber: rgba(255, 0, 127, 0.25);
      --border-glow: rgba(0, 240, 255, 0.4);
      --grad-pink-purple: linear-gradient(135deg, #ff007f 0%, #9d00ff 100%);
      --grad-purple-cyan: linear-gradient(135deg, #9d00ff 0%, #00f0ff 100%);
      --grad-dark-glow: linear-gradient(180deg, #120b24 0%, #080512 100%);
      --shadow-pink: 0 0 20px rgba(255, 0, 127, 0.35);
      --shadow-purple: 0 0 25px rgba(157, 0, 255, 0.4);
      --shadow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

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

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

    body {
      background-color: var(--bg-main);
      color: var(--text-white);
      font-family: var(--font-stack);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 0, 127, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 240, 255, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(157, 0, 255, 0.05) 0%, transparent 60%);
      background-attachment: fixed;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.3s ease;
    }

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

    /* 顶部导航 */
    .header-nav {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 999;
      background: rgba(11, 7, 24, 0.85);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-cyber);
    }

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

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
      filter: drop-shadow(0 0 8px rgba(255, 0, 127, 0.6));
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: 1px;
      background: var(--grad-pink-purple);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-gray);
      padding: 8px 14px;
      display: inline-block;
      transition: color 0.3s, text-shadow 0.3s;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--neon-cyan);
      text-shadow: 0 0 10px rgba(0, 240, 255, 0.8);
    }

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

    .btn-glow-sm {
      background: var(--grad-pink-purple);
      color: #ffffff !important;
      padding: 8px 18px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.88rem;
      box-shadow: var(--shadow-pink);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .btn-glow-sm:hover {
      box-shadow: 0 0 25px rgba(255, 0, 127, 0.8);
      transform: translateY(-1px);
    }

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

    /* 按钮通用 */
    .btn-cyber-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--grad-pink-purple);
      color: #fff;
      padding: 14px 36px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pink);
      border: 1px solid rgba(255, 255, 255, 0.3);
      position: relative;
      overflow: hidden;
      cursor: pointer;
    }

    .btn-cyber-primary:hover {
      box-shadow: 0 0 35px rgba(255, 0, 127, 0.9);
      transform: translateY(-2px);
    }

    .btn-cyber-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 240, 255, 0.1);
      color: var(--neon-cyan);
      padding: 14px 32px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      border: 1px solid var(--neon-cyan);
      box-shadow: var(--shadow-cyan);
    }

    .btn-cyber-secondary:hover {
      background: rgba(0, 240, 255, 0.2);
      box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
      transform: translateY(-2px);
    }

    /* 首屏 Hero - 无图片 pure CSS */
    .hero-section {
      padding: 170px 0 100px;
      position: relative;
      text-align: center;
      overflow: hidden;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      border-radius: 30px;
      background: rgba(157, 0, 255, 0.15);
      border: 1px solid var(--neon-purple);
      color: var(--neon-cyan);
      font-size: 0.88rem;
      margin-bottom: 24px;
      box-shadow: 0 0 15px rgba(157, 0, 255, 0.3);
    }

    .hero-badge span {
      width: 8px;
      height: 8px;
      background: var(--neon-cyan);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--neon-cyan);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.8); }
    }

    .hero-title {
      font-size: clamp(2.2rem, 5vw, 3.8rem);
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -0.5px;
    }

    .hero-title .neon-text {
      background: linear-gradient(135deg, #ff007f, #9d00ff, #00f0ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      filter: drop-shadow(0 0 18px rgba(157, 0, 255, 0.5));
    }

    .hero-desc {
      font-size: clamp(1rem, 2vw, 1.25rem);
      color: var(--text-gray);
      max-width: 840px;
      margin: 0 auto 40px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 60px;
    }

    /* 首屏数据网格 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      text-align: center;
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }

    .stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--grad-pink-purple);
    }

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

    .stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--neon-cyan);
      font-family: monospace;
      margin-bottom: 6px;
      text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
    }

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

    /* 区域通用结构 */
    .section-wrap {
      padding: 90px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 55px;
    }

    .section-tag {
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--neon-pink);
      margin-bottom: 12px;
      display: block;
      text-shadow: 0 0 8px rgba(255, 0, 127, 0.6);
    }

    .section-title {
      font-size: clamp(1.8rem, 3.5vw, 2.6rem);
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      color: var(--text-gray);
      font-size: 1rem;
      line-height: 1.6;
    }

    /* 卡片网格通用 */
    .cyber-grid-3 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
      gap: 24px;
    }

    .cyber-grid-4 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

    .cyber-card {
      background: var(--bg-card);
      border: 1px solid rgba(157, 0, 255, 0.25);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: all 0.35s ease;
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .cyber-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--neon-pink);
      box-shadow: 0 10px 30px rgba(255, 0, 127, 0.2);
      transform: translateY(-5px);
    }

    .card-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background: rgba(255, 0, 127, 0.15);
      border: 1px solid var(--neon-pink);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-cyan);
      font-size: 1.6rem;
      margin-bottom: 20px;
      box-shadow: 0 0 12px rgba(255, 0, 127, 0.3);
    }

    .cyber-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }

    .cyber-card p {
      color: var(--text-gray);
      font-size: 0.94rem;
      line-height: 1.6;
      flex-grow: 1;
    }

    .card-footer-tags {
      margin-top: 18px;
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .badge-cyber {
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: 4px;
      background: rgba(0, 240, 255, 0.1);
      border: 1px solid rgba(0, 240, 255, 0.3);
      color: var(--neon-cyan);
    }

    /* 多模型生态展示 */
    .model-chips-container {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-purple);
      margin-top: 40px;
    }

    .chips-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }

    .model-chip {
      padding: 8px 18px;
      border-radius: 30px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 0, 127, 0.2);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-gray);
      transition: all 0.25s;
    }

    .model-chip:hover {
      background: var(--neon-pink);
      color: #fff;
      border-color: #fff;
      box-shadow: 0 0 15px rgba(255, 0, 127, 0.7);
      transform: scale(1.05);
    }

    /* 流程步骤 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-box {
      background: var(--bg-card);
      border: 1px solid rgba(0, 240, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      position: relative;
    }

    .step-box:hover {
      border-color: var(--neon-cyan);
      box-shadow: var(--shadow-cyan);
    }

    .step-seq {
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(255, 0, 127, 0.2);
      position: absolute;
      top: 10px;
      right: 15px;
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin: 15px 0 10px;
      color: var(--neon-cyan);
    }

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

    /* 对比评测表格与评分卡 */
    .eval-score-banner {
      background: linear-gradient(135deg, rgba(255, 0, 127, 0.2) 0%, rgba(157, 0, 255, 0.2) 100%);
      border: 1px solid var(--neon-pink);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 35px;
      box-shadow: var(--shadow-pink);
    }

    .score-info h3 {
      font-size: 1.8rem;
      margin-bottom: 8px;
    }

    .score-stars {
      color: #ffd700;
      font-size: 1.4rem;
      margin-right: 10px;
    }

    .score-badge {
      display: flex;
      align-items: baseline;
      gap: 6px;
      background: rgba(0, 0, 0, 0.4);
      padding: 12px 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--neon-cyan);
    }

    .score-badge .score-val {
      font-size: 3rem;
      font-weight: 900;
      color: var(--neon-cyan);
      line-height: 1;
      text-shadow: 0 0 15px rgba(0, 240, 255, 0.7);
    }

    .score-badge .score-max {
      font-size: 1.2rem;
      color: var(--text-muted);
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-cyber);
      background: var(--bg-card);
    }

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

    .cyber-table th,
    .cyber-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.94rem;
    }

    .cyber-table th {
      background: rgba(157, 0, 255, 0.15);
      color: var(--neon-cyan);
      font-weight: 700;
      white-space: nowrap;
    }

    .cyber-table tr:hover td {
      background: rgba(255, 255, 255, 0.03);
    }

    .cyber-table td.highlight {
      color: #ff55a3;
      font-weight: 700;
    }

    /* 案例展示区 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #000;
      position: relative;
    }

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

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-content {
      padding: 24px;
      flex-grow: 1;
    }

    .case-tag {
      color: var(--neon-pink);
      font-size: 0.8rem;
      font-weight: 700;
      margin-bottom: 8px;
      display: block;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .case-desc {
      font-size: 0.9rem;
      color: var(--text-gray);
      line-height: 1.5;
    }

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid rgba(157, 0, 255, 0.3);
      border-radius: var(--radius-md);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }

    .avatar-placeholder {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--grad-pink-purple);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #fff;
      font-size: 1.1rem;
      border: 2px solid var(--neon-cyan);
    }

    .user-meta h4 {
      font-size: 1rem;
      color: #fff;
    }

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

    .review-stars {
      color: #ffd700;
      font-size: 0.88rem;
      margin-bottom: 10px;
    }

    .review-quote {
      font-size: 0.92rem;
      color: var(--text-gray);
      line-height: 1.6;
    }

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid rgba(255, 0, 127, 0.2);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .faq-item.active {
      border-color: var(--neon-cyan);
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
    }

    .faq-question {
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 700;
      font-size: 1.05rem;
      color: #fff;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s;
      color: var(--neon-pink);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: rgba(0, 0, 0, 0.2);
    }

    .faq-answer-inner {
      padding: 0 24px 20px;
      color: var(--text-gray);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 文章与资讯 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .article-item {
      background: var(--bg-card);
      border: 1px solid rgba(157, 0, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all 0.3s;
    }

    .article-item:hover {
      border-color: var(--neon-pink);
      transform: translateY(-3px);
    }

    .article-date {
      font-size: 0.8rem;
      color: var(--neon-cyan);
      margin-bottom: 8px;
    }

    .article-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--neon-pink);
      font-size: 0.88rem;
      font-weight: 600;
      margin-top: 8px;
    }

    .article-link:hover {
      color: var(--neon-cyan);
    }

    /* 需求表单与联系我们 */
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: stretch;
    }

    .contact-card-info {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin: 24px 0;
    }

    .info-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-gray);
    }

    .info-item strong {
      color: #fff;
    }

    .qr-container {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 16px;
      background: rgba(0, 0, 0, 0.3);
      border-radius: var(--radius-md);
      border: 1px solid rgba(0, 240, 255, 0.2);
    }

    .qr-container img {
      width: 90px;
      height: 90px;
      border-radius: var(--radius-sm);
      object-fit: cover;
    }

    .qr-text h5 {
      font-size: 1rem;
      color: #fff;
      margin-bottom: 4px;
    }

    .qr-text p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .form-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-purple);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-gray);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      background: rgba(11, 7, 24, 0.8);
      border: 1px solid rgba(157, 0, 255, 0.4);
      border-radius: var(--radius-sm);
      color: #fff;
      font-size: 0.95rem;
      transition: all 0.3s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--neon-cyan);
      box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
    }

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

    /* 友情链接与底部 */
    .friend-links-wrap {
      padding: 24px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 30px;
    }

    .friend-links-title {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.88rem;
    }

    .friend-links-list a {
      color: var(--text-gray);
    }

    .friend-links-list a:hover {
      color: var(--neon-cyan);
    }

    .site-footer {
      background: #06040d;
      border-top: 1px solid rgba(157, 0, 255, 0.2);
      padding: 50px 0 30px;
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .footer-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }

    /* 悬浮客服 */
    .float-kefu {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 10px;
    }

    .kefu-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--grad-pink-purple);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      box-shadow: var(--shadow-pink);
      cursor: pointer;
      border: 1px solid rgba(255, 255, 255, 0.4);
      transition: transform 0.3s;
    }

    .kefu-btn:hover {
      transform: scale(1.1);
    }

    .kefu-popover {
      display: none;
      background: var(--bg-card);
      border: 1px solid var(--neon-cyan);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: 0 0 25px rgba(0, 0, 0, 0.8);
      text-align: center;
      width: 170px;
    }

    .kefu-popover img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 8px;
      border-radius: var(--radius-sm);
    }

    .kefu-popover p {
      font-size: 0.78rem;
      color: var(--neon-cyan);
    }

    .float-kefu:hover .kefu-popover {
      display: block;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-layout {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(11, 7, 24, 0.98);
        border-bottom: 1px solid var(--border-cyber);
        flex-direction: column;
        padding: 20px 0;
        display: none;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-btn-group {
        display: none;
      }
      .hero-section {
        padding: 130px 0 60px;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps-grid {
        grid-template-columns: 1fr;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .eval-score-banner {
        flex-direction: column;
        text-align: center;
      }
    }