:root {
      --primary: #582be8;
      --primary-hover: #451ec9;
      --secondary: #ff3366;
      --accent: #00d2b4;
      --amber: #ff9900;
      --bg-base: #f9faff;
      --bg-surface: #ffffff;
      --bg-subtle: #f0f3fe;
      --text-main: #141824;
      --text-muted: #5e6678;
      --text-light: #8a94a6;
      --border-color: #e4e9f5;
      --border-highlight: #ced7f2;
      --shadow-sm: 0 4px 12px rgba(88, 43, 232, 0.05);
      --shadow-md: 0 10px 25px rgba(88, 43, 232, 0.08);
      --shadow-lg: 0 18px 40px rgba(88, 43, 232, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --radius-full: 9999px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      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-base);
      color: var(--text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

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

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

    .brand-logo-wrap {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .brand-title-wrap h2 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .brand-title-wrap p {
      font-size: 0.72rem;
      color: var(--text-muted);
      font-weight: 600;
      letter-spacing: 0.5px;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(88, 43, 232, 0.08);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, #764af1 100%);
      color: #ffffff;
      box-shadow: 0 4px 16px rgba(88, 43, 232, 0.3);
    }

    .btn-primary:hover {
      box-shadow: 0 6px 20px rgba(88, 43, 232, 0.45);
      transform: translateY(-2px);
    }

    .btn-accent {
      background: linear-gradient(135deg, var(--secondary) 0%, #ff5c38 100%);
      color: #ffffff;
      box-shadow: 0 4px 16px rgba(255, 51, 102, 0.28);
    }

    .btn-accent:hover {
      box-shadow: 0 6px 22px rgba(255, 51, 102, 0.4);
      transform: translateY(-2px);
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: transparent;
    }

    .btn-outline:hover {
      background: rgba(88, 43, 232, 0.06);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 首屏 Hero - 无图片，纯CSS与科技潮流渐变 */
    .hero-section {
      position: relative;
      padding: 80px 0 70px;
      background: linear-gradient(180deg, #f4f2ff 0%, #ffffff 100%);
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-glow-1 {
      position: absolute;
      top: -100px;
      left: 10%;
      width: 420px;
      height: 420px;
      background: radial-gradient(circle, rgba(88, 43, 232, 0.18) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-glow-2 {
      position: absolute;
      bottom: -60px;
      right: 5%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(255, 51, 102, 0.14) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(88, 43, 232, 0.08);
      border: 1px solid rgba(88, 43, 232, 0.2);
      border-radius: var(--radius-full);
      color: var(--primary);
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: var(--secondary);
      border-radius: 50%;
      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; }
    }

    .hero-content h1 {
      font-size: 2.8rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 22px;
      letter-spacing: -1px;
    }

    .hero-content h1 span {
      background: linear-gradient(135deg, var(--primary) 20%, var(--secondary) 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 780px;
      margin: 0 auto 36px;
    }

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

    .btn-hero-main {
      padding: 14px 34px;
      font-size: 1.1rem;
      font-weight: 800;
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .stat-box {
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .stat-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-highlight);
    }

    .stat-number {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 区域通用结构 */
    .section-padding {
      padding: 85px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--secondary);
      background: rgba(255, 51, 102, 0.09);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 平台矩阵跑马灯 */
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-top: 30px;
    }

    .model-pill {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 6px 16px;
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .model-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .intro-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .intro-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-highlight);
    }

    .intro-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
    }

    .icon-p1 { background: rgba(88, 43, 232, 0.12); color: var(--primary); }
    .icon-p2 { background: rgba(255, 51, 102, 0.12); color: var(--secondary); }
    .icon-p3 { background: rgba(0, 210, 180, 0.12); color: var(--accent); }
    .icon-p4 { background: rgba(255, 153, 0, 0.12); color: var(--amber); }

    .intro-card h3 {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .intro-card p {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.68;
    }

    /* 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 22px;
      position: relative;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .service-card-tag {
      position: absolute;
      top: 18px;
      right: 18px;
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      font-weight: 700;
      background: var(--bg-subtle);
      color: var(--primary);
    }

    .service-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
      padding-right: 60px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-card-feature {
      font-size: 0.82rem;
      color: var(--text-light);
      border-top: 1px dashed var(--border-color);
      padding-top: 12px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 一站式制作场景展示 + 素材配图 */
    .scenario-feature-block {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 30px;
      box-shadow: var(--shadow-sm);
    }

    .scenario-feature-inner {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .media-container {
      width: 100%;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      background: var(--bg-subtle);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-container img {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

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

    .scenario-feature-info h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .scenario-feature-info p {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .feature-list-bullet {
      list-style: none;
      margin-bottom: 24px;
    }

    .feature-list-bullet li {
      position: relative;
      padding-left: 24px;
      margin-bottom: 8px;
      font-size: 0.92rem;
      color: var(--text-main);
      font-weight: 600;
    }

    .feature-list-bullet li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--accent);
      font-weight: 900;
    }

    /* 标准流程时间线 */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .flow-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }

    .flow-number {
      width: 42px;
      height: 42px;
      background: linear-gradient(135deg, var(--primary) 0%, #7d59f3 100%);
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 4px 10px rgba(88, 43, 232, 0.25);
    }

    .flow-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .flow-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测 - 突出 5 星 & 9.9分 */
    .benchmark-card {
      background: linear-gradient(135deg, #ffffff 0%, #f7f9ff 100%);
      border: 2px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
    }

    .benchmark-score-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      background: #ffffff;
      padding: 24px 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 30px;
    }

    .score-badge-group {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-big {
      font-size: 3.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-stars {
      color: #ffb703;
      font-size: 1.6rem;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .score-note {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

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

    .table-comparison {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    .table-comparison th,
    .table-comparison td {
      padding: 16px 20px;
      font-size: 0.92rem;
      border-bottom: 1px solid var(--border-color);
    }

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

    .table-comparison tr:last-child td {
      border-bottom: none;
    }

    .table-comparison tr:hover td {
      background: rgba(88, 43, 232, 0.02);
    }

    .tag-better {
      color: var(--primary);
      font-weight: 700;
    }

    .tag-normal {
      color: var(--text-muted);
    }

    /* 行业方案与网络 */
    .solution-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .solution-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
    }

    .solution-card h3 {
      font-size: 1.18rem;
      font-weight: 700;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .solution-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .solution-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .solution-tag-item {
      font-size: 0.78rem;
      background: var(--bg-subtle);
      color: var(--primary);
      padding: 3px 10px;
      border-radius: var(--radius-full);
      font-weight: 600;
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 28px;
      align-items: center;
    }

    .case-card-main {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-card-body {
      padding: 24px;
    }

    .case-card-body h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .case-card-body p {
      font-size: 0.94rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .case-side-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .case-side-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .case-side-item:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }

    .case-side-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .case-side-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Token比价与加盟代理 */
    .dual-box-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .highlight-panel {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .panel-accent {
      border-color: rgba(88, 43, 232, 0.35);
      background: linear-gradient(180deg, #ffffff 0%, #f6f3ff 100%);
    }

    .highlight-panel h3 {
      font-size: 1.45rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .highlight-panel p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 22px;
    }

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

    .panel-perks li {
      padding: 8px 0;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .perk-dot {
      width: 6px;
      height: 6px;
      background: var(--secondary);
      border-radius: 50%;
    }

    /* 6 条用户真实评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .review-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar-char {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .review-user-meta h3 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-user-meta span {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    .review-quote {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.68;
    }

    /* FAQ 折叠面板 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-item:hover {
      border-color: var(--border-highlight);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .faq-icon-arrow {
      font-size: 0.9rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #fafbff;
      padding: 0 24px;
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 14px 24px 20px;
      border-top: 1px solid var(--border-color);
    }

    /* AI百科与行业资讯/文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .info-card-group {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .info-card-group h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .article-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-links-list li a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 14px;
      background: var(--bg-base);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .article-links-list li a:hover {
      background: rgba(88, 43, 232, 0.08);
      color: var(--primary);
      transform: translateX(4px);
    }

    /* 智能需求匹配与联系我们表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .contact-info h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .contact-info p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .contact-meta-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 18px;
    }

    .contact-meta-item strong {
      display: block;
      font-size: 0.9rem;
      color: var(--text-main);
    }

    .contact-meta-item span {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .qr-box {
      margin-top: 24px;
      padding: 16px;
      background: var(--bg-base);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: inline-block;
      text-align: center;
    }

    .qr-box img {
      width: 130px;
      height: 130px;
      object-fit: cover;
      display: block;
      margin: 0 auto 8px;
      border-radius: 6px;
    }

    .qr-box span {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

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

    .form-group label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: var(--bg-base);
      color: var(--text-main);
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(88, 43, 232, 0.12);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 30px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

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

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      padding: 20px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

    .friend-links-wrap strong {
      color: var(--text-main);
      font-size: 0.88rem;
    }

    .friend-links-wrap a {
      font-size: 0.86rem;
      color: var(--text-muted);
      padding: 4px 10px;
      background: var(--bg-base);
      border-radius: var(--radius-sm);
    }

    .friend-links-wrap a:hover {
      color: var(--primary);
      background: rgba(88, 43, 232, 0.08);
    }

    .footer-bottom-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-light);
    }

    /* 浮动客服入口 */
    .float-service-widget {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      color: var(--primary);
      font-size: 1.2rem;
      transition: var(--transition);
      position: relative;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    .float-popover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 14px;
      box-shadow: var(--shadow-lg);
      width: 180px;
      text-align: center;
      display: none;
    }

    .float-popover img {
      width: 140px;
      height: 140px;
      margin: 0 auto 6px;
      display: block;
    }

    .float-popover p {
      font-size: 0.78rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .float-btn-qr:hover .float-popover {
      display: block;
    }

    /* 响应式样式 */
    @media (max-width: 992px) {
      .hero-content h1 { font-size: 2.2rem; }
      .hero-stats { grid-template-columns: repeat(2, 1fr); }
      .intro-grid { grid-template-columns: repeat(2, 1fr); }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .solution-grid { grid-template-columns: repeat(2, 1fr); }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-grid { grid-template-columns: repeat(2, 1fr); }
      .scenario-feature-inner { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr; }
      .dual-box-grid { grid-template-columns: 1fr; }
      .articles-grid { grid-template-columns: 1fr; }
      .contact-wrapper { grid-template-columns: 1fr; }
      .footer-top-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle { display: block; }
      .nav-links {
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        align-items: stretch;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        display: none;
        padding: 16px 20px;
        gap: 4px;
      }
      .nav-links.show { display: flex; }
      .nav-links li a { width: 100%; padding: 12px 16px; }
      .nav-actions { display: none; }
      .hero-content h1 { font-size: 1.8rem; }
      .hero-desc { font-size: 1rem; }
      .section-title { font-size: 1.7rem; }
      .intro-grid { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .solution-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .flow-grid { grid-template-columns: 1fr; }
      .footer-top-grid { grid-template-columns: 1fr; }
    }