/* CSS 全局基础变量与斑斓彩调风设计体系 */
    :root {
      --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #db2777 100%);
      --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 50%, #6366f1 100%);
      --warm-gradient: linear-gradient(135deg, #f59e0b 0%, #ef4444 50%, #ec4899 100%);
      --mint-gradient: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
      --card-bg: #ffffff;
      --card-border: rgba(226, 232, 240, 0.9);
      --card-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --card-shadow-hover: 0 20px 35px -10px rgba(99, 102, 241, 0.18), 0 1px 3px rgba(0, 0, 0, 0.05);
      --bg-page: #f8fafc;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-body: #334155;
      --text-muted: #64748b;
      --primary-color: #4f46e5;
      --primary-dark: #3730a3;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-max: 1240px;
      --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

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

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

    /* 斑斓氛围背景装饰层 - 稳定全局承接 */
    .ambient-bg {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      pointer-events: none;
      z-index: -1;
      overflow: hidden;
      opacity: 0.6;
    }
    .ambient-glow-1 {
      position: absolute;
      top: -10%;
      right: -5%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(219, 39, 119, 0.08) 50%, transparent 70%);
      border-radius: 50%;
      filter: blur(50px);
    }
    .ambient-glow-2 {
      position: absolute;
      top: 40%;
      left: -10%;
      width: 650px;
      height: 650px;
      background: radial-gradient(circle, rgba(14, 165, 233, 0.12) 0%, rgba(16, 185, 129, 0.08) 50%, transparent 70%);
      border-radius: 50%;
      filter: blur(60px);
    }
    .ambient-glow-3 {
      position: absolute;
      bottom: -10%;
      right: 15%;
      width: 700px;
      height: 700px;
      background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, rgba(236, 72, 153, 0.08) 60%, transparent 70%);
      border-radius: 50%;
      filter: blur(70px);
    }

    /* 统一居中容器 */
    .site-container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.04);
      transition: var(--transition-smooth);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      flex-shrink: 0;
    }
    .brand-logo-wrap img.ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }
    .brand-text-block {
      display: flex;
      flex-direction: column;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-tagline {
      font-size: 0.75rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 导航链接 - 严格要求 gap: 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-item {
      position: relative;
    }
    .nav-link,
    .ai-page-home-link {
      display: inline-block;
      padding: 10px 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-body);
      text-decoration: none;
      transition: var(--transition-smooth);
      border-radius: var(--radius-sm);
    }
    .nav-link:hover,
    .ai-page-home-link:hover {
      color: var(--primary-color);
      background-color: rgba(99, 102, 241, 0.06);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.9rem;
      font-weight: 700;
      color: #ffffff;
      background: var(--primary-gradient);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.28);
      transition: var(--transition-smooth);
      white-space: nowrap;
    }
    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(79, 70, 229, 0.38);
    }

    /* 移动端菜单切换按钮 */
    .mobile-menu-btn {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 40px;
      height: 40px;
      background: #f1f5f9;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-sm);
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-btn span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--text-main);
      border-radius: 2px;
      transition: var(--transition-smooth);
    }

    /* 第一屏：Hero首屏（严格规则：无图片，纯色/渐变/几何/文字/数据） */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.9) 100%);
      border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    }
    .hero-wrapper {
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }
    .hero-pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(99, 102, 241, 0.08);
      border: 1px solid rgba(99, 102, 241, 0.25);
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: 22px;
    }
    .hero-pill-badge .pulse-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
    }

    /* H1 控制在20字内并保持高权重 */
    .hero-title {
      font-size: clamp(1.85rem, 4.2vw, 2.85rem);
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }
    .hero-title .gradient-text {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: clamp(1.05rem, 2vw, 1.22rem);
      color: var(--text-body);
      max-width: 820px;
      margin: 0 auto 36px;
      font-weight: 400;
      line-height: 1.8;
    }
    .hero-lead strong {
      color: var(--text-main);
      font-weight: 700;
    }

    /* 首屏行动号召按钮组（含醒目访问官网链接） */
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 50px;
    }
    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 16px 36px;
      font-size: 1.08rem;
      font-weight: 800;
      color: #ffffff;
      background: var(--primary-gradient);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
      transition: var(--transition-smooth);
      position: relative;
      overflow: hidden;
    }
    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 16px 35px rgba(79, 70, 229, 0.45);
    }
    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 30px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      background: #ffffff;
      border: 1px solid rgba(203, 213, 225, 0.9);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: var(--card-shadow);
      transition: var(--transition-smooth);
    }
    .btn-hero-secondary:hover {
      background: #f8fafc;
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: translateY(-2px);
    }
    .btn-hero-tertiary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 28px;
      font-size: 1.02rem;
      font-weight: 700;
      color: #b45309;
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.35);
      border-radius: var(--radius-full);
      text-decoration: none;
      transition: var(--transition-smooth);
    }
    .btn-hero-tertiary:hover {
      background: rgba(245, 158, 11, 0.2);
      transform: translateY(-2px);
    }

    /* 首屏数据指标卡片群（纯几何/CSS科技感排版） */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      text-align: left;
    }
    .metric-card {
      background: #ffffff;
      padding: 22px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      position: relative;
      overflow: hidden;
      transition: var(--transition-smooth);
    }
    .metric-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary-gradient);
    }
    .metric-card.color-accent::before { background: var(--accent-gradient); }
    .metric-card.color-warm::before { background: var(--warm-gradient); }
    .metric-card.color-mint::before { background: var(--mint-gradient); }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
    }
    .metric-num {
      font-size: 1.95rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.1;
      margin-bottom: 6px;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }
    .metric-num span {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary-color);
    }
    .metric-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .metric-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* 聚合支持大模型横幅标签池 */
    .models-marquee-wrapper {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px dashed rgba(203, 213, 225, 0.7);
    }
    .marquee-label {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 12px;
      display: block;
      text-align: center;
    }
    .models-pill-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }
    .model-chip {
      padding: 5px 14px;
      font-size: 0.78rem;
      font-weight: 600;
      background: #ffffff;
      color: var(--text-body);
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: var(--radius-full);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
      transition: var(--transition-smooth);
    }
    .model-chip:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: translateY(-2px);
    }

    /* 模块通用标题与排版系统 */
    .section-padding {
      padding: 85px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 52px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary-color);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-badge.badge-warm {
      background: rgba(245, 158, 11, 0.12);
      color: #b45309;
    }
    .section-badge.badge-accent {
      background: rgba(14, 165, 233, 0.12);
      color: #0284c7;
    }
    .section-title {
      font-size: clamp(1.7rem, 3.2vw, 2.25rem);
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 关于我们 & 平台介绍卡片 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 36px;
      align-items: center;
    }
    .about-content-card {
      background: #ffffff;
      padding: 40px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
    }
    .about-heading {
      font-size: 1.55rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .about-text {
      font-size: 1rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 22px;
    }
    .platform-feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 26px;
    }
    .platform-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.94rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .check-icon {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: rgba(16, 185, 129, 0.15);
      color: #10b981;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 900;
      flex-shrink: 0;
    }
    .about-media-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      padding: 24px;
      text-align: center;
    }
    .media-aspect-wrapper {
      width: 100%;
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 18px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    }
    .media-aspect-wrapper img {
      width: 100%;
      height: auto;
      display: block;
      transition: var(--transition-smooth);
    }
    .media-aspect-wrapper img:hover {
      transform: scale(1.02);
    }
    .media-box-caption {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .media-box-sub {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 场景卡片大网格 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      transition: var(--transition-smooth);
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .scenario-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--card-shadow-hover);
      border-color: rgba(99, 102, 241, 0.4);
    }
    .scenario-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 18px;
      background: rgba(99, 102, 241, 0.08);
      color: var(--primary-color);
      flex-shrink: 0;
    }
    .scenario-card:nth-child(2n) .scenario-icon-wrap {
      background: rgba(14, 165, 233, 0.08);
      color: #0284c7;
    }
    .scenario-card:nth-child(3n) .scenario-icon-wrap {
      background: rgba(245, 158, 11, 0.08);
      color: #d97706;
    }
    .scenario-card:nth-child(4n) .scenario-icon-wrap {
      background: rgba(236, 72, 153, 0.08);
      color: #db2777;
    }
    .scenario-name {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .scenario-desc {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .scenario-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .scenario-tag-item {
      font-size: 0.76rem;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      background: #f1f5f9;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 宣传图画廊展示区 */
    .promo-gallery-section {
      background: #ffffff;
      border-top: 1px solid var(--card-border);
      border-bottom: 1px solid var(--card-border);
      padding: 60px 0;
    }
    .promo-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .promo-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      background: #ffffff;
      transition: var(--transition-smooth);
    }
    .promo-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
    }
    .promo-card img.ai-page-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }
    .promo-caption {
      padding: 16px 20px;
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }

    /* 标准制作流程步骤条 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .process-step-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px 22px;
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      position: relative;
      transition: var(--transition-smooth);
    }
    .process-step-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary-color);
    }
    .step-number {
      font-size: 1.8rem;
      font-weight: 900;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 10px;
      line-height: 1;
    }
    .step-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 对比评测板块（核心考核指标） */
    .compare-section {
      background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    }
    .rating-banner-box {
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 15px 35px rgba(79, 70, 229, 0.28);
      margin-bottom: 36px;
    }
    .rating-left {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .rating-badge-tag {
      font-size: 0.9rem;
      font-weight: 700;
      background: rgba(255, 255, 255, 0.2);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      width: fit-content;
    }
    .rating-big-title {
      font-size: 1.65rem;
      font-weight: 900;
    }
    .rating-stars-text {
      font-size: 1.1rem;
      font-weight: 800;
      color: #fef08a;
      letter-spacing: 2px;
    }
    .rating-score-display {
      text-align: right;
    }
    .score-digits {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1;
      color: #ffffff;
    }
    .score-full-label {
      font-size: 0.95rem;
      font-weight: 700;
      opacity: 0.9;
    }

    /* 对比评测表格容器 */
    .compare-table-responsive {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      -webkit-overflow-scrolling: touch;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 780px;
    }
    .compare-table th,
    .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    }
    .compare-table th {
      background: #f8fafc;
      font-size: 0.98rem;
      font-weight: 800;
      color: var(--text-main);
    }
    .compare-table th.col-highlight {
      background: rgba(99, 102, 241, 0.08);
      color: var(--primary-color);
      border-top: 3px solid var(--primary-color);
    }
    .compare-table td.col-highlight {
      background: rgba(99, 102, 241, 0.02);
      font-weight: 600;
      color: var(--text-main);
    }
    .compare-item-title {
      font-weight: 800;
      color: var(--text-main);
      display: block;
      margin-bottom: 2px;
    }
    .compare-item-sub {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* Token 比价专区表格 */
    .token-pricing-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      padding: 30px;
      margin-bottom: 40px;
    }
    .token-table-wrap {
      overflow-x: auto;
    }
    .token-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 650px;
    }
    .token-table th, .token-table td {
      padding: 14px 20px;
      border-bottom: 1px solid rgba(226, 232, 240, 0.7);
      text-align: left;
      font-size: 0.92rem;
    }
    .token-table th {
      background: #f8fafc;
      font-weight: 800;
      color: var(--text-main);
    }
    .price-discount-tag {
      display: inline-block;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      background: rgba(16, 185, 129, 0.12);
      color: #059669;
      font-weight: 700;
      font-size: 0.8rem;
    }

    /* 案例中心 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition-smooth);
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
    }
    .case-img-holder {
      width: 100%;
      height: 190px;
      overflow: hidden;
      background: #e2e8f0;
    }
    .case-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: var(--transition-smooth);
    }
    .case-card:hover .case-img-holder img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-category {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--primary-color);
      text-transform: uppercase;
      margin-bottom: 6px;
    }
    .case-title {
      font-size: 1.12rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .case-desc {
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .case-metrics-badge {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 14px;
      border-top: 1px solid rgba(226, 232, 240, 0.7);
      font-size: 0.84rem;
      font-weight: 700;
      color: var(--text-muted);
    }
    .case-metrics-badge strong {
      color: #059669;
    }

    /* 加盟代理专区 */
    .agent-promo-card {
      background: linear-gradient(135deg, #ffffff 0%, #fdf4ff 50%, #eff6ff 100%);
      border: 1px solid rgba(192, 132, 252, 0.35);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--card-shadow);
      margin-bottom: 30px;
    }
    .agent-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin: 32px 0;
    }
    .agent-item {
      background: rgba(255, 255, 255, 0.95);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    }
    .agent-item-title {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .agent-item-desc {
      font-size: 0.86rem;
      color: var(--text-body);
      line-height: 1.55;
    }

    /* 6条精选用户评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition-smooth);
    }
    .review-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
    }
    .review-stars {
      color: #f59e0b;
      font-size: 1.05rem;
      margin-bottom: 12px;
      letter-spacing: 2px;
    }
    .review-quote {
      font-size: 0.93rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: normal;
    }
    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(226, 232, 240, 0.7);
      padding-top: 14px;
    }
    .user-avatar-initial {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      flex-shrink: 0;
    }
    .user-name-title {
      display: flex;
      flex-direction: column;
    }
    .user-full-name {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
    }
    .user-role-label {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 智能需求匹配与联系我们表单 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1fr 1.15fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      padding: 44px;
    }
    .contact-info-side {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .info-list-group {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin: 24px 0;
    }
    .info-item-row {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-body);
    }
    .info-icon-badge {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: rgba(99, 102, 241, 0.08);
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }
    .qr-showcase-box {
      background: #f8fafc;
      border-radius: var(--radius-md);
      padding: 16px;
      border: 1px solid var(--card-border);
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .qr-img-wrapper {
      width: 90px;
      height: 90px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      overflow: hidden;
      flex-shrink: 0;
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .qr-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    /* 表单组件 */
    .form-group-wrap {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-row-2col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid rgba(203, 213, 225, 0.9);
      border-radius: var(--radius-sm);
      background: #ffffff;
      color: var(--text-main);
      transition: var(--transition-smooth);
      font-family: inherit;
    }
    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }
    .form-textarea {
      resize: vertical;
      min-height: 100px;
    }
    .btn-submit-form {
      padding: 14px 28px;
      font-size: 1rem;
      font-weight: 800;
      color: #ffffff;
      background: var(--primary-gradient);
      border: none;
      border-radius: var(--radius-full);
      cursor: pointer;
      box-shadow: 0 6px 18px rgba(79, 70, 229, 0.3);
      transition: var(--transition-smooth);
    }
    .btn-submit-form:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(79, 70, 229, 0.4);
    }

    /* 常见问题 FAQ 展开收起手风琴 */
    .faq-accordion-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--card-border);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
      overflow: hidden;
      transition: var(--transition-smooth);
    }
    .faq-item:hover {
      border-color: rgba(99, 102, 241, 0.4);
    }
    .faq-question-btn {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      background: none;
      border: none;
      text-align: left;
      cursor: pointer;
      font-family: inherit;
    }
    .faq-toggle-icon {
      font-size: 1.3rem;
      font-weight: 400;
      color: var(--primary-color);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer-pane {
      padding: 0 24px 20px;
      font-size: 0.94rem;
      color: var(--text-body);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed rgba(226, 232, 240, 0.8);
      margin-top: 4px;
      padding-top: 14px;
    }
    .faq-item.active .faq-answer-pane {
      display: block;
    }

    /* 百科与行业资讯文章 */
    .wiki-articles-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .wiki-card-pane {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      padding: 30px;
    }
    .wiki-pane-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 2px solid rgba(99, 102, 241, 0.15);
    }
    .wiki-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .wiki-item-title {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .wiki-item-desc {
      font-size: 0.85rem;
      color: var(--text-body);
      line-height: 1.5;
    }
    .article-links-group {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .article-link-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      border: 1px solid var(--card-border);
      text-decoration: none;
      color: var(--text-main);
      font-size: 0.9rem;
      font-weight: 600;
      transition: var(--transition-smooth);
    }
    .article-link-item:hover {
      background: rgba(99, 102, 241, 0.05);
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: translateX(4px);
    }

    /* 友情链接与页脚系统 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid rgba(226, 232, 240, 0.9);
      padding-top: 50px;
      padding-bottom: 30px;
      color: var(--text-body);
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-link {
      font-size: 0.88rem;
      color: var(--text-body);
      text-decoration: none;
      transition: var(--transition-smooth);
    }
    .footer-link:hover {
      color: var(--primary-color);
    }
    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .friend-links-box a {
      font-size: 0.86rem;
      color: var(--text-body);
      text-decoration: none;
      background: #f8fafc;
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--card-border);
      transition: var(--transition-smooth);
    }
    .friend-links-box a:hover {
      color: var(--primary-color);
      border-color: var(--primary-color);
      background: rgba(99, 102, 241, 0.05);
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(226, 232, 240, 0.8);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.84rem;
      color: var(--text-muted);
    }

    /* 悬浮客服挂件与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-tool-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--card-border);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      text-decoration: none;
      color: var(--text-main);
      font-size: 20px;
      transition: var(--transition-smooth);
    }
    .float-tool-btn:hover {
      background: var(--primary-color);
      color: #ffffff;
      transform: translateY(-3px);
    }

    /* 响应式断点优化 */
    @media (max-width: 1024px) {
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid {
        grid-template-columns: 1fr;
      }
      .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .agent-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .promo-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--card-border);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
      }
      .nav-links.mobile-open {
        display: flex;
      }
      .nav-link, .ai-page-home-link {
        width: 100%;
        padding: 12px 0;
        border-bottom: 1px dashed rgba(226, 232, 240, 0.6);
      }
      .nav-cta-btn {
        display: none;
      }
      .hero-section {
        padding: 45px 0 40px;
      }
      .hero-metrics-grid {
        grid-template-columns: 1fr;
      }
      .scenarios-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .agent-grid {
        grid-template-columns: 1fr;
      }
      .promo-grid {
        grid-template-columns: 1fr;
      }
      .contact-form-layout {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .form-row-2col {
        grid-template-columns: 1fr;
      }
      .wiki-articles-layout {
        grid-template-columns: 1fr;
      }
      .rating-banner-box {
        flex-direction: column;
        text-align: center;
        gap: 16px;
        padding: 24px;
      }
      .rating-score-display {
        text-align: center;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
    }