:root {
      --bg-main: #070913;
      --bg-card: rgba(16, 22, 38, 0.75);
      --bg-card-hover: rgba(22, 32, 56, 0.9);
      --neon-cyan: #00f0ff;
      --neon-purple: #9d4edd;
      --neon-magenta: #ff007f;
      --neon-green: #00ff88;
      --neon-blue: #3a86ff;
      --text-main: #f0f4fc;
      --text-sub: #94a3b8;
      --text-muted: #64748b;
      --border-color: rgba(0, 240, 255, 0.2);
      --border-hover: rgba(0, 240, 255, 0.6);
      --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.35);
      --glow-purple: 0 0 20px rgba(157, 78, 221, 0.35);
      --glow-magenta: 0 0 20px rgba(255, 0, 127, 0.35);
      --container-max: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
    }

    body {
      background: radial-gradient(circle at 10% 20%, rgba(157, 78, 221, 0.12) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(0, 240, 255, 0.12) 0%, transparent 40%),
                  radial-gradient(circle at 50% 50%, rgba(255, 0, 127, 0.06) 0%, transparent 50%),
                  #070913;
      min-height: 100vh;
      overflow-x: hidden;
      line-height: 1.6;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 头部导航 */
    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(7, 9, 19, 0.88);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      color: var(--text-main);
      font-weight: 700;
      font-size: 1.25rem;
      letter-spacing: 0.5px;
    }

    .ai-page-logo {
      max-height: 40px;
      width: auto;
      display: block;
    }

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

    .nav-links li a {
      color: var(--text-sub);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 14px;
      transition: all 0.3s ease;
      position: relative;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--neon-cyan);
      text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 8px;
      text-decoration: none;
      cursor: pointer;
      transition: all 0.3s ease;
      border: 1px solid transparent;
      outline: none;
    }

    .btn-neon-primary {
      background: linear-gradient(135deg, #00f0ff 0%, #3a86ff 100%);
      color: #070913;
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
    }

    .btn-neon-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
      background: linear-gradient(135deg, #00ff88 0%, #00f0ff 100%);
    }

    .btn-neon-outline {
      background: rgba(0, 240, 255, 0.05);
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.15);
    }

    .btn-neon-outline:hover {
      background: var(--neon-cyan);
      color: #070913;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
      transform: translateY(-2px);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      font-size: 1.5rem;
      cursor: pointer;
    }

    /* 区域通用样式 */
    section {
      padding: 80px 0;
      position: relative;
    }

    .section-title-wrap {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--neon-cyan);
      background: rgba(0, 240, 255, 0.1);
      border: 1px solid rgba(0, 240, 255, 0.3);
      padding: 4px 16px;
      border-radius: 20px;
      margin-bottom: 12px;
      box-shadow: var(--glow-cyan);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.3;
      margin-bottom: 14px;
      background: linear-gradient(135deg, #ffffff 30%, #00f0ff 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-desc {
      color: var(--text-sub);
      font-size: 1rem;
      max-width: 680px;
      margin: 0 auto;
    }

    /* Hero 首屏 - 纯代码无图片科技风 */
    .hero-section {
      padding: 100px 0 80px;
      position: relative;
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(157, 78, 221, 0.15);
      border: 1px solid rgba(157, 78, 221, 0.4);
      padding: 6px 16px;
      border-radius: 30px;
      color: #d8b4fe;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: var(--glow-purple);
    }

    .hero-badge .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--neon-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--neon-green);
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { opacity: 0.4; transform: scale(0.9); }
      50% { opacity: 1; transform: scale(1.3); }
      100% { opacity: 0.4; transform: scale(0.9); }
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
      color: #ffffff;
      text-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
    }

    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-sub);
      margin-bottom: 36px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-actions .btn-official {
      background: linear-gradient(135deg, #ff007f 0%, #9d4edd 100%);
      color: #ffffff;
      padding: 14px 32px;
      font-size: 1.05rem;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 0 25px rgba(255, 0, 127, 0.5);
      border: 1px solid rgba(255, 255, 255, 0.2);
      transition: all 0.3s ease;
    }

    .hero-actions .btn-official:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 0 35px rgba(255, 0, 127, 0.8);
      background: linear-gradient(135deg, #00f0ff 0%, #9d4edd 100%);
    }

    .hero-highlights {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
    }

    .stat-box h4 {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--neon-cyan);
      margin-bottom: 4px;
      text-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
    }

    .stat-box p {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 首屏右侧纯代码几何动效看板 */
    .hero-dashboard {
      background: rgba(13, 18, 35, 0.75);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), inset 0 0 20px rgba(0, 240, 255, 0.1);
      position: relative;
    }

    .dashboard-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }

    .terminal-dots {
      display: flex;
      gap: 6px;
    }

    .terminal-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      display: inline-block;
    }

    .dot-red { background-color: #ff5f56; }
    .dot-yellow { background-color: #ffbd2e; }
    .dot-green { background-color: #27c93f; }

    .terminal-title {
      font-size: 0.85rem;
      color: var(--neon-cyan);
      font-family: monospace;
      letter-spacing: 1px;
    }

    .engine-stack {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .engine-row {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: 8px;
      padding: 12px 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: all 0.3s ease;
    }

    .engine-row:hover {
      border-color: var(--neon-cyan);
      background: rgba(0, 240, 255, 0.05);
      transform: translateX(4px);
    }

    .engine-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .engine-icon-code {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(157, 78, 221, 0.2));
      border: 1px solid var(--neon-cyan);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-cyan);
      font-size: 0.9rem;
      font-weight: bold;
    }

    .engine-name {
      font-size: 0.95rem;
      font-weight: 600;
      color: #ffffff;
    }

    .engine-tag {
      font-size: 0.75rem;
      color: var(--neon-green);
      border: 1px solid rgba(0, 255, 136, 0.3);
      padding: 2px 8px;
      border-radius: 4px;
    }

    .engine-speed {
      font-size: 0.85rem;
      color: #38bdf8;
      font-family: monospace;
    }

    /* 平台核心能力卡片 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }

    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 28px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .card:hover {
      transform: translateY(-6px);
      background: var(--bg-card-hover);
      border-color: var(--border-hover);
      box-shadow: 0 12px 30px rgba(0, 240, 255, 0.2);
    }

    .card:hover::before {
      opacity: 1;
    }

    .card-icon {
      font-size: 2rem;
      margin-bottom: 16px;
      display: inline-block;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }

    .card-desc {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 场景矩阵 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
      gap: 20px;
    }

    .scenario-card {
      background: rgba(16, 22, 38, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 12px;
      padding: 22px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

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

    .scenario-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: #f1f5f9;
    }

    .scenario-label {
      font-size: 0.75rem;
      padding: 2px 10px;
      border-radius: 20px;
      background: rgba(157, 78, 221, 0.2);
      color: #d8b4fe;
      border: 1px solid rgba(157, 78, 221, 0.4);
    }

    .scenario-body {
      color: var(--text-sub);
      font-size: 0.92rem;
      line-height: 1.6;
    }

    /* 模型标签云 */
    .model-tags-wrap {
      background: rgba(11, 15, 29, 0.8);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 30px;
      box-shadow: inset 0 0 30px rgba(0, 240, 255, 0.05);
    }

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

    .model-tag-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(0, 240, 255, 0.25);
      color: #e2e8f0;
      padding: 8px 18px;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.3s ease;
      cursor: default;
    }

    .model-tag-item:hover {
      background: rgba(0, 240, 255, 0.15);
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      transform: scale(1.05);
      box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
    }

    /* 对比评测表 */
    .comparison-wrapper {
      background: rgba(15, 23, 42, 0.8);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    }

    .rating-banner {
      background: linear-gradient(90deg, rgba(157, 78, 221, 0.3) 0%, rgba(0, 240, 255, 0.3) 100%);
      padding: 20px 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-info h3 {
      font-size: 1.4rem;
      color: #ffffff;
      margin-bottom: 4px;
    }

    .rating-score {
      font-size: 1.8rem;
      font-weight: 900;
      color: #ffd700;
      text-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
    }

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

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

    .compare-table th,
    .compare-table td {
      padding: 16px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .compare-table th {
      background: rgba(255, 255, 255, 0.02);
      color: var(--text-main);
      font-weight: 700;
      font-size: 0.95rem;
    }

    .compare-table td {
      color: var(--text-sub);
      font-size: 0.9rem;
    }

    .compare-table tr:hover td {
      background: rgba(0, 240, 255, 0.03);
    }

    .compare-highlight {
      color: var(--neon-cyan) !important;
      font-weight: 700;
    }

    /* 流程步骤 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 24px;
      position: relative;
    }

    .step-item {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 12px;
      padding: 24px;
      position: relative;
      transition: all 0.3s ease;
    }

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

    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(0, 240, 255, 0.2);
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-item h4 {
      font-size: 1.15rem;
      color: #ffffff;
      margin-bottom: 8px;
    }

    /* 案例展示 */
    .media-gallery {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-top: 30px;
    }

    .media-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .media-item:hover {
      box-shadow: 0 10px 30px rgba(0, 240, 255, 0.3);
      border-color: var(--neon-cyan);
    }

    .media-box {
      width: 100%;
      overflow: hidden;
    }

    .media-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .media-item:hover img {
      transform: scale(1.03);
    }

    .media-meta {
      padding: 16px 20px;
    }

    .media-meta h4 {
      font-size: 1.1rem;
      color: #ffffff;
      margin-bottom: 6px;
    }

    .media-meta p {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

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

    .banner-card {
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: #0d1222;
    }

    .banner-card img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 评价卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 12px;
      padding: 24px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-card:hover {
      border-color: var(--neon-magenta);
      box-shadow: var(--glow-magenta);
      transform: translateY(-4px);
    }

    .review-content {
      font-size: 0.95rem;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #070913;
    }

    .reviewer-name {
      font-size: 0.95rem;
      font-weight: 600;
      color: #ffffff;
    }

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

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .faq-item.active {
      border-color: var(--neon-cyan);
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
    }

    .faq-question {
      padding: 18px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      color: #f1f5f9;
      user-select: none;
    }

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

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

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      color: var(--text-sub);
      font-size: 0.92rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 24px 20px 24px;
    }

    /* 需求匹配与表单 */
    .form-grid-wrap {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: rgba(13, 18, 35, 0.85);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    }

    .form-info h3 {
      font-size: 1.8rem;
      color: #ffffff;
      margin-bottom: 16px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      color: var(--text-sub);
      font-size: 0.95rem;
    }

    .contact-item strong {
      color: #ffffff;
    }

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

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

    .form-group label {
      font-size: 0.85rem;
      color: var(--text-sub);
      font-weight: 500;
    }

    .form-control {
      background: rgba(7, 9, 19, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      padding: 12px 16px;
      color: #ffffff;
      font-size: 0.95rem;
      outline: none;
      transition: all 0.3s ease;
    }

    .form-control:focus {
      border-color: var(--neon-cyan);
      box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    /* 最新文章与行业资讯 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
    }

    .article-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      padding: 18px;
      text-decoration: none;
      transition: all 0.3s ease;
      display: block;
    }

    .article-card:hover {
      border-color: var(--neon-cyan);
      background: rgba(0, 240, 255, 0.05);
      transform: translateY(-3px);
    }

    .article-card h4 {
      font-size: 0.95rem;
      color: #f1f5f9;
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .article-card span {
      font-size: 0.8rem;
      color: var(--neon-cyan);
    }

    /* 浮动客服入口与二维码 */
    .floating-kefu {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .kefu-btn {
      width: 54px;
      height: 54px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #070913;
      font-weight: bold;
      font-size: 1.2rem;
      cursor: pointer;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
      transition: all 0.3s ease;
      position: relative;
    }

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

    .kefu-popup {
      position: absolute;
      bottom: 66px;
      right: 0;
      background: #0f172a;
      border: 1px solid var(--neon-cyan);
      border-radius: 12px;
      padding: 16px;
      width: 200px;
      text-align: center;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
      display: none;
    }

    .floating-kefu:hover .kefu-popup {
      display: block;
    }

    .kefu-popup img {
      width: 140px;
      height: 140px;
      margin: 0 auto 10px;
      display: block;
      border-radius: 6px;
    }

    .kefu-popup p {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    /* 底部页脚 */
    footer {
      background: #03050a;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 60px 0 24px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 40px;
    }

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

    .footer-col h4::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 24px;
      height: 2px;
      background: var(--neon-cyan);
    }

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

    .footer-links li a {
      color: var(--text-sub);
      text-decoration: none;
      transition: color 0.3s;
    }

    .footer-links li a:hover {
      color: var(--neon-cyan);
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 10px;
    }

    .friend-links-wrap a {
      color: var(--text-sub);
      text-decoration: none;
      background: rgba(255, 255, 255, 0.04);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.82rem;
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: all 0.3s;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .form-grid-wrap {
        grid-template-columns: 1fr;
      }
      .media-gallery {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-title {
        font-size: 2.2rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #070913;
        flex-direction: column;
        padding: 20px 0;
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .banner-trio {
        grid-template-columns: 1fr;
      }
      .hero-highlights {
        grid-template-columns: 1fr;
        gap: 12px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }