:root {
      --primary: #4f46e5;
      --primary-accent: #06b6d4;
      --holo-gradient: linear-gradient(135deg, rgba(238,242,255,0.85) 0%, rgba(224,242,254,0.7) 35%, rgba(245,243,255,0.85) 70%, rgba(254,242,242,0.7) 100%);
      --holo-border: linear-gradient(90deg, #6366f1, #06b6d4, #ec4899);
      --text-main: #0f172a;
      --text-sub: #475569;
      --text-light: #64748b;
      --bg-page: #f8fafc;
      --card-bg: rgba(255, 255, 255, 0.9);
      --card-border: rgba(226, 232, 240, 0.9);
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 25px -5px rgba(99, 102, 241, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --radius-lg: 16px;
      --radius-md: 10px;
    }

    * {
      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: 1.6;
      position: relative;
      overflow-x: hidden;
    }

    /* 镭射质感全局承接层 */
    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(6, 182, 212, 0.08) 0%, transparent 35%),
        radial-gradient(circle at 50% 80%, rgba(236, 72, 153, 0.06) 0%, transparent 40%);
      pointer-events: none;
      z-index: 0;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      position: relative;
      z-index: 1;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    /* 导航区 */
    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      backdrop-filter: blur(12px);
      background: rgba(255, 255, 255, 0.85);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: all 0.3s ease;
    }

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

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

    .brand-logo .ai-page-logo {
      max-height: 42px;
      width: auto;
      display: block;
    }

    .brand-logo .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      font-size: 0.95rem;
      color: var(--text-sub);
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 6px;
      transition: color 0.2s, background 0.2s;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.05);
    }

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

    .btn-nav {
      padding: 8px 18px;
      font-size: 0.9rem;
      border-radius: 8px;
      font-weight: 600;
      transition: all 0.2s ease;
    }

    .btn-portal {
      background: linear-gradient(135deg, #4f46e5, #06b6d4);
      color: #ffffff !important;
      box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
    }

    .btn-portal:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

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

    /* Section 通用规范 */
    section {
      padding: 72px 0;
      position: relative;
    }

    .section-title-wrap {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 12px;
      border-radius: 20px;
      background: rgba(99, 102, 241, 0.1);
      color: var(--primary);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
      max-width: 680px;
      margin: 0 auto;
    }

    /* Hero 首屏 (严格无图片) */
    .hero-section {
      padding: 90px 0 80px;
      background: var(--holo-gradient);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      position: relative;
      overflow: hidden;
    }

    .hero-content {
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid rgba(99, 102, 241, 0.2);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
      70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
      100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(120deg, #4f46e5, #0284c7, #db2777);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 1.2rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 740px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #4f46e5, #0891b2);
      color: #ffffff;
      padding: 14px 36px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: 12px;
      box-shadow: 0 10px 20px -5px rgba(79, 70, 229, 0.35);
      transition: all 0.25s ease;
    }

    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 24px -5px rgba(79, 70, 229, 0.45);
      color: #ffffff;
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #ffffff;
      color: var(--text-main);
      padding: 14px 28px;
      font-size: 1.05rem;
      font-weight: 600;
      border-radius: 12px;
      border: 1px solid #cbd5e1;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .btn-hero-secondary:hover {
      border-color: #94a3b8;
      background: #f8fafc;
      transform: translateY(-2px);
    }

    /* 纯代码数据指标卡（首屏无图片） */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 900px;
      margin: 0 auto;
    }

    .metric-card {
      background: rgba(255, 255, 255, 0.95);
      border: 1px solid rgba(226, 232, 240, 0.8);
      border-radius: var(--radius-md);
      padding: 18px 14px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s;
    }

    .metric-card:hover {
      transform: translateY(-3px);
    }

    .metric-val {
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }

    .metric-lbl {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-top: 4px;
      font-weight: 500;
    }

    /* 模型矩阵徽章墙 */
    .models-marquee-wrap {
      padding: 30px 0;
      background: #ffffff;
      border-bottom: 1px solid #f1f5f9;
    }

    .marquee-label {
      text-align: center;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-light);
      letter-spacing: 0.5px;
      margin-bottom: 16px;
    }

    .model-pills-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-pill {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      transition: all 0.2s;
    }

    .model-pill:hover {
      background: #eef2ff;
      border-color: #c7d2fe;
      color: var(--primary);
      transform: translateY(-1px);
    }

    /* 平台核心架构介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .intro-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s;
    }

    .intro-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }

    .intro-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.1));
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.3rem;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .intro-card h3 {
      font-size: 1.25rem;
      margin-bottom: 12px;
      color: var(--text-main);
    }

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

    /* 20+ AIGC服务场景 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      border-color: #818cf8;
      box-shadow: 0 6px 16px rgba(99, 102, 241, 0.08);
      transform: translateY(-2px);
    }

    .service-card h4 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .service-card h4::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--primary);
      border-radius: 50%;
      flex-shrink: 0;
    }

    .service-card p {
      font-size: 0.875rem;
      color: var(--text-sub);
      line-height: 1.55;
    }

    /* 一站式自动化创作流程 */
    .workflow-track {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .step-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 24px 16px;
      position: relative;
      text-align: center;
    }

    .step-badge {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, #4f46e5, #06b6d4);
      color: #ffffff;
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-size: 0.95rem;
    }

    .step-item h4 {
      font-size: 1.05rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    /* 案例中心展示（含图片） */
    .case-gallery {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 20px;
      align-items: stretch;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }

    .case-media-box {
      width: 100%;
      background: #f1f5f9;
      overflow: hidden;
    }

    .case-media-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }

    .case-card:hover .case-media-box img {
      transform: scale(1.02);
    }

    .case-info {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-info h4 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-info p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* 评测与对比板块 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
      border: 2px solid #e0e7ff;
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 36px;
      box-shadow: var(--shadow-sm);
    }

    .eval-score-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      border-bottom: 1px solid #e2e8f0;
      padding-bottom: 24px;
      margin-bottom: 24px;
    }

    .eval-brand-score {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .eval-score-num {
      font-size: 3.2rem;
      font-weight: 900;
      color: #4f46e5;
      line-height: 1;
    }

    .eval-score-base {
      font-size: 1.1rem;
      color: var(--text-light);
      font-weight: 500;
    }

    .eval-stars {
      font-size: 1.3rem;
      color: #f59e0b;
      margin-left: 8px;
    }

    .eval-rec-tag {
      background: #ecfdf5;
      color: #047857;
      border: 1px solid #a7f3d0;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.9rem;
      font-weight: 700;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .comparison-table th, .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #e2e8f0;
      font-size: 0.95rem;
    }

    .comparison-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table tr:hover td {
      background: #fbfcfe;
    }

    .col-highlight {
      background: rgba(238, 242, 255, 0.4);
      font-weight: 600;
      color: #4338ca;
    }

    .badge-win {
      display: inline-block;
      padding: 2px 8px;
      background: #e0e7ff;
      color: #4338ca;
      border-radius: 4px;
      font-size: 0.8rem;
      margin-left: 6px;
    }

    /* 加盟代理与算力被动收益 */
    .partner-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 32px;
      flex-wrap: wrap;
    }

    .partner-text h3 {
      font-size: 1.8rem;
      margin-bottom: 12px;
      color: #ffffff;
    }

    .partner-text p {
      font-size: 1.05rem;
      color: #cbd5e1;
      max-width: 600px;
      line-height: 1.6;
    }

    .partner-cta-btn {
      background: linear-gradient(90deg, #38bdf8, #818cf8);
      color: #0f172a;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: 10px;
      white-space: nowrap;
      transition: all 0.2s;
    }

    .partner-cta-btn:hover {
      opacity: 0.95;
      transform: translateY(-2px);
    }

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

    .review-card {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-body {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }

    .reviewer-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #a5b4fc, #67e8f9);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #1e1b4b;
      font-size: 0.95rem;
    }

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

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

    /* FAQ 手风琴面板 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
    }

    .faq-item:hover {
      border-color: #cbd5e1;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      color: var(--text-main);
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-arrow {
      font-size: 1.1rem;
      color: var(--text-light);
      transition: transform 0.25s ease;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #f8fafc;
      color: var(--text-sub);
      font-size: 0.95rem;
      line-height: 1.6;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 16px 24px;
      border-top: 1px solid #f1f5f9;
    }

    /* 需求表单与联系我们 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-col h3 {
      font-size: 1.6rem;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .contact-info-col p {
      color: var(--text-sub);
      margin-bottom: 24px;
      line-height: 1.6;
    }

    .contact-list {
      list-style: none;
      margin-bottom: 28px;
    }

    .contact-list li {
      margin-bottom: 12px;
      font-size: 0.95rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .contact-qr-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
    }

    .contact-qr-img {
      width: 100px;
      height: 100px;
      background: #ffffff;
      padding: 4px;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
    }

    .contact-qr-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .contact-qr-desc h5 {
      font-size: 0.95rem;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .contact-qr-desc p {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-bottom: 0;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
    }

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

    .btn-submit {
      width: 100%;
      padding: 12px;
      background: linear-gradient(135deg, #4f46e5, #06b6d4);
      color: #ffffff;
      border: none;
      border-radius: 8px;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      transition: opacity 0.2s, transform 0.2s;
    }

    .btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    /* 行业资讯与文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 16px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.2s;
    }

    .article-card:hover {
      transform: translateY(-3px);
      border-color: #818cf8;
    }

    .article-card h5 {
      font-size: 0.95rem;
      line-height: 1.45;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .article-card a {
      font-size: 0.85rem;
      color: var(--primary);
      font-weight: 600;
    }

    /* 页脚与友情链接规范 */
    footer {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      padding: 48px 0 24px;
      color: var(--text-main);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-top: 12px;
      max-width: 320px;
    }

    .footer-links-col h5 {
      font-size: 0.95rem;
      color: var(--text-main);
      margin-bottom: 16px;
      font-weight: 700;
    }

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

    .footer-links-col ul li {
      margin-bottom: 8px;
    }

    .footer-links-col ul li a {
      font-size: 0.85rem;
      color: var(--text-sub);
      transition: color 0.2s;
    }

    .footer-links-col ul li a:hover {
      color: var(--primary);
    }

    .friend-links-wrap {
      border-top: 1px solid #f1f5f9;
      padding-top: 20px;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 12px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }

    .friend-links-list a {
      color: var(--text-sub);
      transition: color 0.2s;
    }

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

    .copyright-bar {
      border-top: 1px solid #f1f5f9;
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-light);
    }

    /* 浮动客服入口 */
    .float-kefu {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-lg);
      border-radius: 30px;
      padding: 10px 18px;
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .float-kefu:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px -5px rgba(0, 0, 0, 0.15);
    }

    .float-kefu-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: #4f46e5;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      font-weight: bold;
    }

    .float-kefu-text {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-main);
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .workflow-track { grid-template-columns: repeat(2, 1fr); }
      .case-gallery { grid-template-columns: 1fr; }
      .articles-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-top { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
        border-bottom: 1px solid #e2e8f0;
      }
      .nav-links.active { display: flex; }
      .nav-toggle { display: block; }
      .hero-title { font-size: 2.1rem; }
      .hero-metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .intro-grid, .reviews-grid { grid-template-columns: 1fr; }
      .contact-form-layout { grid-template-columns: 1fr; padding: 24px; }
      .footer-top { grid-template-columns: 1fr; }
    }