:root {
      --bg-base: #f7f9fd;
      --bg-surface: #ffffff;
      --bg-alt: #f1f4fa;
      --text-main: #182030;
      --text-muted: #53627c;
      --text-light: #7b8ba5;
      --primary: #5247e6;
      --primary-dark: #372cb5;
      --primary-light: #eef0ff;
      --accent: #ff4bb4;
      --cyan: #0cd6cb;
      --border-color: #dbe3f0;
      --holo-gradient: linear-gradient(135deg, rgba(82, 71, 230, 0.12) 0%, rgba(12, 214, 203, 0.1) 45%, rgba(255, 75, 180, 0.12) 100%);
      --holo-border: linear-gradient(90deg, #5247e6, #0cd6cb, #ff4bb4, #5247e6);
      --card-shadow: 0 10px 30px rgba(24, 32, 48, 0.05);
      --hover-shadow: 0 16px 36px rgba(82, 71, 230, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
    }

    * {
      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: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(12, 214, 203, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255, 75, 180, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(82, 71, 230, 0.04) 0%, transparent 60%);
      background-attachment: fixed;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(219, 227, 240, 0.8);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }

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

    .brand-logo-wrap {
      width: 130px;
      display: flex;
      align-items: center;
    }

    .brand-title-badge {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
      letter-spacing: 0.5px;
    }

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

    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(82, 71, 230, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 30px;
      cursor: pointer;
      transition: all 0.3s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-holo {
      background: linear-gradient(135deg, #5247e6 0%, #0cd6cb 50%, #ff4bb4 100%);
      background-size: 200% 200%;
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(82, 71, 230, 0.3);
      animation: holoShift 6s ease infinite;
    }

    .btn-holo:hover {
      background-position: right center;
      box-shadow: 0 6px 20px rgba(255, 75, 180, 0.4);
      transform: translateY(-2px);
      color: #ffffff;
    }

    .btn-outline {
      border-color: var(--border-color);
      color: var(--text-main);
      background: var(--bg-surface);
    }

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

    .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: 0.3s;
    }

    /* 区域通用规范 */
    .section-spacing {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      padding: 4px 14px;
      border-radius: 20px;
      background: linear-gradient(90deg, rgba(82, 71, 230, 0.1), rgba(12, 214, 203, 0.1));
      color: var(--primary);
      margin-bottom: 12px;
      border: 1px solid rgba(82, 71, 230, 0.2);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 70px 0 60px 0;
      position: relative;
    }

    .hero-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      text-align: left;
    }

    .hero-badge-row {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.88rem;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 22px;
      box-shadow: 0 4px 12px rgba(82, 71, 230, 0.08);
    }

    .hero-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #0cd6cb;
      box-shadow: 0 0 8px #0cd6cb;
    }

    .hero-h1 {
      font-size: 2.45rem;
      font-weight: 800;
      line-height: 1.25;
      color: #121826;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-desc {
      font-size: 1.12rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 620px;
    }

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

    .btn-hero-main {
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
    }

    .hero-highlights {
      display: flex;
      align-items: center;
      gap: 24px;
      padding-top: 18px;
      border-top: 1px solid var(--border-color);
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .hero-highlight-item {
      display: flex;
      align-items: center;
      gap: 6px;
      font-weight: 500;
    }

    .hero-highlight-icon {
      color: #0cd6cb;
      font-weight: 800;
    }

    /* 首屏右侧 CSS 拟态技术看板 */
    .hero-glass-board {
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(245, 248, 255, 0.8));
      border: 1px solid rgba(219, 227, 240, 0.9);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--card-shadow);
      position: relative;
    }

    .hero-board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px dashed var(--border-color);
    }

    .board-indicator {
      display: flex;
      gap: 6px;
    }

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

    .board-indicator .bi-red { background: #ff5f56; }
    .board-indicator .bi-yellow { background: #ffbd2e; }
    .board-indicator .bi-green { background: #27c93f; }

    .board-status {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 10px;
      border-radius: 12px;
    }

    .board-stat-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 20px;
    }

    .board-stat-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 14px;
      text-align: left;
    }

    .stat-label {
      font-size: 0.82rem;
      color: var(--text-light);
      display: block;
      margin-bottom: 4px;
    }

    .stat-val {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .stat-val-highlight {
      background: linear-gradient(90deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .board-flow-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px;
    }

    .board-flow-title {
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .flow-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .flow-badge {
      font-size: 0.78rem;
      padding: 4px 10px;
      border-radius: 4px;
      background: var(--bg-alt);
      color: var(--text-muted);
      border: 1px solid rgba(219, 227, 240, 0.7);
    }

    /* 合作大模型滚动条 */
    .model-strip {
      padding: 24px 0;
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .model-strip-label {
      text-align: center;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

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

    .model-pill {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      padding: 6px 16px;
      border-radius: 20px;
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      transition: all 0.25s;
    }

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

    /* 核心数据卡片 */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .metric-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      box-shadow: var(--card-shadow);
      transition: transform 0.3s;
    }

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

    .metric-number {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .metric-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      font-weight: 500;
    }

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

    .service-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--card-shadow);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .service-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary);
      box-shadow: var(--hover-shadow);
    }

    .service-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(82, 71, 230, 0.1), rgba(12, 214, 203, 0.15));
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.3rem;
      margin-bottom: 18px;
    }

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

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .service-card-footer {
      border-top: 1px solid var(--bg-alt);
      padding-top: 14px;
      font-size: 0.85rem;
      color: var(--primary);
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* 行业方案展示与图文组合 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .industry-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      display: flex;
      flex-direction: column;
      gap: 16px;
      box-shadow: var(--card-shadow);
    }

    .industry-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .industry-card p {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

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

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

    .industry-feature-list li::before {
      content: "✓";
      color: #0cd6cb;
      font-weight: 800;
    }

    /* 流程步骤 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: left;
      position: relative;
      box-shadow: var(--card-shadow);
    }

    .step-number {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
      background: var(--primary-light);
      width: 44px;
      height: 44px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    .step-box h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .step-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 对比评测表格 */
    .compare-container {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--card-shadow);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      background: linear-gradient(135deg, rgba(82, 71, 230, 0.08), rgba(255, 75, 180, 0.08));
      border: 1px solid rgba(82, 71, 230, 0.15);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      margin-bottom: 28px;
      gap: 16px;
    }

    .rating-text-group {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .rating-score {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .rating-sub {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .rating-stars {
      color: #ff9800;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

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

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

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.94rem;
    }

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

    .compare-table tr:hover {
      background-color: rgba(82, 71, 230, 0.02);
    }

    .compare-table .highlight-col {
      background-color: rgba(82, 71, 230, 0.04);
      font-weight: 700;
      color: var(--primary);
    }

    .compare-table th.highlight-col {
      background-color: rgba(82, 71, 230, 0.08);
      color: var(--primary);
    }

    /* 案例中心：展示多媒体图片 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      transition: transform 0.3s;
    }

    .case-card:hover {
      transform: translateY(-4px);
    }

    .case-img-box {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #e9eff8;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-box.square {
      aspect-ratio: 1 / 1;
      max-height: 240px;
    }

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

    .case-card:hover .case-img-box img {
      transform: scale(1.04);
    }

    .case-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-tag {
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
      width: fit-content;
    }

    .case-body h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .case-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 宣传图画廊展示区 */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .banner-gallery-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      background: #fff;
    }

    .banner-gallery-item img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }

    /* 用户评论卡片 (6条) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-quote {
      font-size: 0.94rem;
      color: var(--text-main);
      line-height: 1.65;
      margin-bottom: 18px;
      font-style: italic;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--bg-alt);
      padding-top: 14px;
    }

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #5247e6, #0cd6cb);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .author-info h5 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

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

    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: all 0.25s ease;
    }

    .faq-question {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-toggle-icon {
      font-size: 1.3rem;
      color: var(--primary);
      transition: transform 0.3s;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding-bottom: 20px;
    }

    /* 需求匹配表单与联系我们 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: start;
    }

    .contact-info-panel {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--card-shadow);
    }

    .contact-info-panel h3 {
      font-size: 1.45rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .contact-info-panel p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 24px;
    }

    .contact-meta-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 26px;
    }

    .contact-meta-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.94rem;
      color: var(--text-main);
    }

    .contact-meta-label {
      font-weight: 700;
      color: var(--text-muted);
      min-width: 85px;
    }

    .qr-container {
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      padding: 16px;
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      max-width: 170px;
    }

    .qr-container img {
      width: 130px;
      height: 130px;
      border-radius: 6px;
    }

    .qr-container span {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 8px;
      font-weight: 600;
    }

    .form-panel {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--card-shadow);
    }

    .form-panel h3 {
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .form-panel p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      background: var(--bg-surface);
      outline: none;
      transition: border-color 0.25s ease;
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(82, 71, 230, 0.1);
    }

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

    /* 最新文章与资讯 */
    .article-section {
      background: var(--bg-surface);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .article-container-inner {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 36px;
    }

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

    .article-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 20px;
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      transition: all 0.25s;
    }

    .article-item:hover {
      background: #ffffff;
      border-color: var(--primary);
      transform: translateX(4px);
    }

    .article-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .article-meta {
      font-size: 0.82rem;
      color: var(--text-light);
      white-space: nowrap;
    }

    .agent-box {
      background: linear-gradient(145deg, rgba(82, 71, 230, 0.05), rgba(12, 214, 203, 0.05));
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .agent-box h4 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--primary);
    }

    .agent-box p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }

    /* 友情链接区与页脚 */
    .links-bar {
      padding: 24px 0;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.88rem;
    }

    .links-title {
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .links-list a {
      color: var(--text-muted);
    }

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

    .site-footer {
      background: #ffffff;
      padding: 40px 0 25px 0;
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 30px;
    }

    .footer-brand p {
      margin-top: 12px;
      max-width: 360px;
      line-height: 1.6;
      color: var(--text-muted);
    }

    .footer-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

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

    .footer-col ul li a {
      color: var(--text-muted);
    }

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

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

    /* 悬浮客服与返回顶部 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-main);
      font-size: 1.1rem;
      transition: all 0.25s;
    }

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

    .kefu-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
      display: none;
      width: 170px;
      text-align: center;
    }

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

    .kefu-popup img {
      width: 100%;
      border-radius: 4px;
      margin-bottom: 6px;
    }

    .kefu-popup span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    @keyframes holoShift {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }

    /* 移动端响应式 */
    @media (max-width: 992px) {
      .hero-wrapper {
        grid-template-columns: 1fr;
      }
      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .banner-gallery-grid {
        grid-template-columns: 1fr;
      }
      .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .article-container-inner {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-links.show {
        display: flex;
      }
      .mobile-menu-toggle {
        display: block;
      }
    }

    @media (max-width: 640px) {
      .hero-h1 {
        font-size: 1.85rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .service-grid, .industry-grid, .case-grid, .testimonial-grid, .metric-grid, .process-steps {
        grid-template-columns: 1fr;
      }
      .hero-highlights {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
      }
      .nav-actions .btn-outline {
        display: none;
      }
    }