/* 全局与高饱和艳彩风主题变量 - 浅色基底 */
    :root {
      --bg-base: #f8faff;
      --bg-surface: #ffffff;
      --bg-subtle: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      
      /* 高饱和艳彩色系 */
      --primary: #4f46e5;
      --primary-bright: #6366f1;
      --accent-magenta: #ec4899;
      --accent-coral: #ff3366;
      --accent-cyan: #06b6d4;
      --accent-teal: #0d9488;
      --accent-amber: #f59e0b;
      --accent-lime: #10b981;
      --accent-purple: #8b5cf6;

      --grad-vibrant: linear-gradient(135deg, #ff007a 0%, #7928ca 50%, #0070f3 100%);
      --grad-warm: linear-gradient(135deg, #ff4500 0%, #ff007a 50%, #ff8c00 100%);
      --grad-cool: linear-gradient(135deg, #00c6ff 0%, #0072ff 100%);
      --grad-card-border: linear-gradient(135deg, rgba(236,72,153,0.35), rgba(99,102,241,0.35), rgba(6,182,212,0.35));

      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(99, 102, 241, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-vibrant: 0 14px 35px -8px rgba(255, 51, 102, 0.22);
      
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --radius-full: 9999px;
      
      --container-max: 1240px;
    }

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

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

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

    /* 艳彩轻盈背景修饰层，贯穿主体保持连续 */
    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: 
        radial-gradient(circle at 10% 15%, rgba(236, 72, 153, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 45%, rgba(6, 182, 212, 0.06) 0%, transparent 45%),
        radial-gradient(circle at 50% 85%, rgba(245, 158, 11, 0.04) 0%, transparent 50%);
      pointer-events: none;
      z-index: -1;
    }

    /* 居中统一主容器 */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 通用排版 */
    h1, h2, h3, h4 {
      color: var(--text-main);
      line-height: 1.3;
      font-weight: 700;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    p {
      color: var(--text-muted);
    }

    /* 头部导航条 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 2px solid rgba(236, 72, 153, 0.15);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #0f172a;
    }

    .brand-tag {
      background: var(--grad-vibrant);
      color: #ffffff;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      margin-left: 6px;
    }

    /* 严格按照要求设置 .nav-links 的 gap 为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li {
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.94rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      position: relative;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--accent-magenta);
      background-color: rgba(236, 72, 153, 0.08);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      font-size: 0.95rem;
      font-weight: 700;
      cursor: pointer;
      border: none;
      outline: none;
      transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
      text-align: center;
    }

    .btn-glow-coral {
      background: var(--grad-warm);
      color: #ffffff;
      box-shadow: 0 6px 20px rgba(255, 69, 0, 0.32);
    }

    .btn-glow-coral:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(255, 69, 0, 0.42);
      color: #ffffff;
    }

    .btn-vibrant-outline {
      background: #ffffff;
      color: var(--primary);
      border: 2px solid var(--primary);
      padding: 8px 18px;
    }

    .btn-vibrant-outline:hover {
      background: var(--primary);
      color: #ffffff;
    }

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

    .nav-toggle-btn span {
      display: block;
      width: 24px;
      height: 3px;
      margin: 4px 0;
      background: var(--text-main);
      border-radius: 2px;
      transition: 0.3s;
    }

    /* 首屏 Hero - 严格无图片要求，以纯高饱和艳彩几何渐变构建 */
    .hero-section {
      padding: 72px 0 64px 0;
      position: relative;
    }

    .hero-wrapper {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(236, 72, 153, 0.1);
      border: 1px solid rgba(236, 72, 153, 0.35);
      border-radius: var(--radius-full);
      color: var(--accent-magenta);
      font-size: 0.86rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .hero-badge .pulse-dot {
      width: 8px;
      height: 8px;
      background: var(--accent-magenta);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--accent-magenta);
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.8; }
    }

    /* H1 精简改写至 20 字以内 */
    .hero-title {
      font-size: 2.85rem;
      letter-spacing: -1px;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 20px;
    }

    .hero-title .text-color-pop {
      background: var(--grad-vibrant);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-lead {
      font-size: 1.125rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 32px;
    }

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

    .hero-btn-main {
      font-size: 1.05rem;
      padding: 14px 34px;
      background: var(--grad-vibrant);
      color: #ffffff;
      border-radius: var(--radius-full);
      font-weight: 800;
      box-shadow: 0 12px 28px rgba(121, 40, 202, 0.32);
    }

    .hero-btn-main:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 16px 36px rgba(121, 40, 202, 0.45);
      color: #ffffff;
    }

    .hero-metrics-strip {
      display: flex;
      gap: 28px;
      padding-top: 24px;
      border-top: 1px solid rgba(148, 163, 184, 0.25);
    }

    .metric-item strong {
      display: block;
      font-size: 1.75rem;
      font-weight: 900;
      color: #0f172a;
      line-height: 1;
    }

    .metric-item strong span {
      color: var(--accent-coral);
    }

    .metric-item span.lbl {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-top: 4px;
      display: block;
    }

    /* 首屏纯CSS科技感卡片组件 */
    .hero-card-panel {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 0 20px 45px rgba(99, 102, 241, 0.16);
      border: 2px solid transparent;
      background-clip: padding-box;
      position: relative;
    }

    .hero-card-panel::before {
      content: '';
      position: absolute;
      top: -2px; left: -2px; right: -2px; bottom: -2px;
      background: var(--grad-card-border);
      border-radius: calc(var(--radius-lg) + 2px);
      z-index: -1;
    }

    .panel-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid #f1f5f9;
    }

    .panel-status {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent-lime);
    }

    .status-bulb {
      width: 10px;
      height: 10px;
      background: var(--accent-lime);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--accent-lime);
    }

    .model-chips-container {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 24px;
    }

    .model-chip {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      border-color: var(--accent-magenta);
      color: var(--accent-magenta);
      background: #fff0f6;
    }

    .feature-check-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .feature-check-list li {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .feature-check-list svg {
      width: 18px;
      height: 18px;
      fill: var(--accent-magenta);
      flex-shrink: 0;
    }

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

    .section-alt {
      background: #ffffff;
      border-top: 1px solid #eef2f6;
      border-bottom: 1px solid #eef2f6;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px auto;
    }

    .section-eyebrow {
      display: inline-block;
      color: var(--accent-coral);
      font-weight: 800;
      font-size: 0.88rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 14px;
    }

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

    /* 关于我们 / 平台介绍模块 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content-card {
      background: #ffffff;
      padding: 40px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      border-left: 5px solid var(--accent-magenta);
    }

    .about-p-list {
      margin-top: 16px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .about-highlight-box {
      background: linear-gradient(135deg, #fef2f2 0%, #fff7ed 100%);
      border: 1px solid rgba(255, 69, 0, 0.2);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-top: 24px;
    }

    .about-stats-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .stat-card-pop {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      border: 1px solid #f1f5f9;
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: transform 0.3s ease;
    }

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

    .stat-card-pop::after {
      content: "";
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 4px;
      background: var(--grad-vibrant);
    }

    .stat-card-pop .num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
    }

    .stat-card-pop .label {
      font-size: 0.9rem;
      color: var(--text-light);
      margin-top: 6px;
      font-weight: 600;
    }

    /* AIGC 服务矩阵卡片（3列高饱和度网格） */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
      gap: 26px;
    }

    .srv-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid #f1f5f9;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .srv-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 16px 32px rgba(99, 102, 241, 0.15);
      border-color: rgba(99, 102, 241, 0.3);
    }

    .srv-icon-badge {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-size: 1.5rem;
      color: #ffffff;
      flex-shrink: 0;
    }

    .srv-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #0f172a;
    }

    .srv-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

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

    .srv-tag {
      font-size: 0.76rem;
      padding: 3px 10px;
      background: #f1f5f9;
      color: var(--text-main);
      border-radius: var(--radius-full);
      font-weight: 600;
    }

    /* 一站式制作专区 & 场景工坊展示 */
    .workshop-strip {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 36px;
    }

    .workshop-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border-top: 4px solid var(--accent-coral);
      box-shadow: var(--shadow-sm);
    }

    .workshop-card h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
      color: #0f172a;
    }

    .workshop-card p {
      font-size: 0.9rem;
      line-height: 1.55;
    }

    /* 真实图片展示容器（严谨非首屏） */
    .showcase-banner-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-top: 40px;
    }

    .banner-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 2px solid #e2e8f0;
      background: #ffffff;
    }

    .banner-img-box img {
      width: 100%;
      height: 260px;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .banner-img-box:hover img {
      transform: scale(1.03);
    }

    .banner-caption {
      padding: 16px 20px;
      background: #ffffff;
      font-weight: 700;
      font-size: 0.95rem;
      color: #0f172a;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 行业方案板块 (折叠/双栏卡片) */
    .solutions-tabs-content {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
      gap: 24px;
    }

    .sol-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .sol-card h4 {
      font-size: 1.2rem;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .sol-pill {
      font-size: 0.72rem;
      background: rgba(99, 102, 241, 0.12);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 服务网络与标准流程 */
    .network-badge-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 18px;
      text-align: center;
    }

    .network-badge {
      background: #ffffff;
      padding: 24px 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      border: 1px solid #eef2f6;
    }

    .network-badge h5 {
      font-size: 1.1rem;
      margin-bottom: 6px;
      color: var(--accent-magenta);
    }

    .network-badge span {
      font-size: 0.85rem;
      color: var(--text-light);
    }

    .process-timeline {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-top: 40px;
      position: relative;
    }

    .step-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: var(--grad-vibrant);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      margin-bottom: 16px;
    }

    .step-item h4 {
      font-size: 1.05rem;
      margin-bottom: 8px;
      color: #0f172a;
    }

    .step-item p {
      font-size: 0.86rem;
      line-height: 1.5;
    }

    /* 对比评测板块（核心推荐要求） */
    .compare-section {
      background: linear-gradient(180deg, #ffffff 0%, #f9faff 100%);
      border: 2px solid rgba(99, 102, 241, 0.15);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-md);
      margin: 40px 0;
    }

    .rating-header-box {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      padding-bottom: 28px;
      border-bottom: 2px solid #eef2f6;
      margin-bottom: 32px;
    }

    .rating-score-pill {
      display: inline-flex;
      align-items: baseline;
      gap: 6px;
      background: var(--grad-warm);
      color: #ffffff;
      padding: 8px 24px;
      border-radius: var(--radius-full);
      box-shadow: 0 8px 20px rgba(255, 69, 0, 0.28);
    }

    .rating-score-pill .score-val {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1;
    }

    .rating-score-pill .score-max {
      font-size: 1rem;
      opacity: 0.9;
    }

    .stars-render {
      color: #f59e0b;
      font-size: 1.4rem;
      letter-spacing: 4px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      background: #ffffff;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #e2e8f0;
    }

    .compare-table th {
      background: #f8fafc;
      color: #0f172a;
      font-weight: 700;
    }

    .compare-table th.col-highlight {
      background: rgba(99, 102, 241, 0.08);
      color: var(--primary);
      font-size: 1.05rem;
    }

    .compare-table td.col-highlight {
      background: rgba(99, 102, 241, 0.03);
      font-weight: 700;
      color: #0f172a;
    }

    .badge-adv {
      display: inline-block;
      padding: 3px 8px;
      background: #ecfdf5;
      color: #059669;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 600;
    }

    /* 案例中心 & 真实素材图混排 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 26px;
    }

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

    .case-media-box {
      height: 220px;
      position: relative;
      background: #e2e8f0;
      overflow: hidden;
    }

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

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

    .case-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-body h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
      color: #0f172a;
    }

    .case-body p {
      font-size: 0.9rem;
      margin-bottom: 16px;
    }

    /* Token比价与算力经济学 */
    .token-pricing-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }

    .price-card {
      background: #ffffff;
      padding: 32px 24px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
      transition: all 0.3s ease;
    }

    .price-card.popular {
      border: 2px solid var(--accent-magenta);
      box-shadow: 0 12px 30px rgba(236, 72, 153, 0.18);
      transform: translateY(-4px);
    }

    .popular-tag {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--grad-vibrant);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 14px;
      border-radius: var(--radius-full);
    }

    .price-card h4 {
      font-size: 1.25rem;
      margin-bottom: 12px;
    }

    .price-val {
      font-size: 2.4rem;
      font-weight: 900;
      color: #0f172a;
      margin: 16px 0;
    }

    .price-val span {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-light);
    }

    .price-features {
      list-style: none;
      text-align: left;
      margin: 24px 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .price-features li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 6条真实用户评论卡片 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .testi-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .testi-card::before {
      content: "“";
      font-size: 4rem;
      color: rgba(99, 102, 241, 0.12);
      position: absolute;
      top: 10px;
      right: 20px;
      line-height: 1;
      font-family: Georgia, serif;
    }

    .testi-comment {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
      z-index: 1;
    }

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

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--grad-vibrant);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .author-info h5 {
      font-size: 0.98rem;
      color: #0f172a;
    }

    .author-info p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* FAQ 手风琴 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      border-color: var(--accent-magenta);
      box-shadow: 0 4px 16px rgba(236, 72, 153, 0.12);
    }

    .faq-question {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      color: #0f172a;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.25rem;
      transition: transform 0.3s ease;
      color: var(--accent-magenta);
    }

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

    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.65;
    }

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

    /* AI百科 & 行业资讯最新文章 */
    .news-article-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .article-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 22px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s;
    }

    .article-box:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    .article-box a {
      font-size: 1.02rem;
      font-weight: 700;
      color: #0f172a;
      display: inline-block;
      margin-bottom: 8px;
    }

    .article-box a:hover {
      color: var(--accent-coral);
    }

    .article-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 加盟代理与商业合作专区 */
    .partner-block {
      background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 50px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
      box-shadow: 0 20px 40px rgba(79, 70, 229, 0.25);
    }

    .partner-block h3 {
      color: #ffffff;
      font-size: 2rem;
      margin-bottom: 16px;
    }

    .partner-block p {
      color: rgba(255, 255, 255, 0.9);
      font-size: 1.05rem;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .partner-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .partner-feature-list li {
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .partner-action-box {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: var(--radius-md);
      padding: 30px;
      text-align: center;
    }

    /* 联系我们与表单接入 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-panel {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

    .contact-detail-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin: 24px 0;
    }

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

    .contact-detail-list strong {
      color: var(--text-muted);
      width: 90px;
    }

    .qr-showcase {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #f8fafc;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px dashed #cbd5e1;
    }

    .qr-showcase img {
      width: 100px;
      height: 100px;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
    }

    .form-panel {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: #0f172a;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--accent-magenta);
      box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.15);
    }

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

    /* 浮动客服入口 */
    .float-kefu-btn {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 99;
      background: var(--grad-vibrant);
      color: #ffffff;
      width: 60px;
      height: 60px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 25px rgba(236, 72, 153, 0.45);
      cursor: pointer;
      transition: transform 0.3s ease;
    }

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

    .float-kefu-btn svg {
      width: 28px;
      height: 28px;
      fill: #ffffff;
    }

    /* 底部统一页脚 - 显式指定高对比配色，与顶部容器宽度绝对对齐 */
    .site-footer {
      background: #ffffff;
      border-top: 2px solid #e2e8f0;
      padding: 60px 0 30px 0;
      color: #334155;
    }

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

    .footer-col h4 {
      font-size: 1.1rem;
      color: #0f172a;
      margin-bottom: 16px;
      position: relative;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 24px;
      height: 3px;
      background: var(--accent-coral);
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links-list a {
      color: #475569;
      font-size: 0.9rem;
    }

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

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }

    .friend-links-box a {
      font-size: 0.88rem;
      color: #475569;
      background: #f8fafc;
      padding: 4px 12px;
      border-radius: 4px;
      border: 1px solid #e2e8f0;
    }

    .friend-links-box a:hover {
      color: var(--accent-magenta);
      border-color: var(--accent-magenta);
    }

    .footer-bottom-bar {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 0.86rem;
      color: #64748b;
    }

    .ai-page-home-link {
      color: var(--accent-magenta);
      font-weight: 700;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .about-grid, .partner-block, .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .site-header {
        height: auto;
        padding: 12px 0;
      }
      .nav-toggle-btn {
        display: block;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        padding: 16px 0;
        border-top: 1px solid #f1f5f9;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links a {
        display: block;
        padding: 10px 16px;
      }
      .header-inner {
        flex-wrap: wrap;
        height: auto;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .showcase-banner-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
    }