:root {
      --primary: #059669;
      --primary-light: #10b981;
      --primary-mint: #34d399;
      --mint-pale: #ecfdf5;
      --mint-ice: #f0fdf4;
      --mint-soft: #d1fae5;
      --accent: #0284c7;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border: #e2e8f0;
      --card-bg: #ffffff;
      --shadow-sm: 0 2px 8px rgba(16, 185, 129, 0.06);
      --shadow-md: 0 10px 25px -5px rgba(5, 150, 105, 0.1), 0 8px 10px -6px rgba(5, 150, 105, 0.05);
      --shadow-lg: 0 20px 35px -8px rgba(16, 185, 129, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: #f7fdf9;
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(16, 185, 129, 0.15);
    }

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

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

    .brand-logo-wrap {
      max-width: 150px;
      display: flex;
      align-items: center;
    }

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

    .nav-links li a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      display: block;
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: var(--mint-pale);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
      background: linear-gradient(135deg, #047857, var(--primary));
    }

    .btn-secondary {
      background-color: var(--mint-pale);
      color: var(--primary);
      border-color: var(--mint-soft);
    }

    .btn-secondary:hover {
      background-color: var(--mint-soft);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background-color: var(--text-main);
      transition: 0.3s;
    }

    /* 纯色渐变科技感首屏 (严禁图片) */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 80% 20%, #d1fae5 0%, #ecfdf5 45%, #f7fdf9 100%);
      padding: 70px 0 60px;
      overflow: hidden;
      border-bottom: 1px solid rgba(16, 185, 129, 0.12);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background-color: #ffffff;
      border: 1px solid var(--mint-soft);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      border-radius: 99px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 20px;
    }

    .hero-tag-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary-mint);
      box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.3);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5); }
      70% { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
      100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
    }

    .hero-title {
      font-size: 38px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary), #0284c7);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 30px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 35px;
    }

    .hero-btn-huge {
      padding: 14px 32px;
      font-size: 16px;
      border-radius: 12px;
    }

    .hero-features-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      padding-top: 20px;
      border-top: 1px dashed #cbd5e1;
    }

    .hero-feat-item {
      display: flex;
      flex-direction: column;
    }

    .hero-feat-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .hero-feat-desc {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 纯CSS首屏视觉交互面板 */
    .hero-visual-card {
      background: #ffffff;
      border: 1px solid rgba(16, 185, 129, 0.2);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .hero-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 18px;
    }

    .terminal-dots {
      display: flex;
      gap: 6px;
    }

    .terminal-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }

    .dot-1 { background-color: #ef4444; }
    .dot-2 { background-color: #f59e0b; }
    .dot-3 { background-color: #10b981; }

    .matrix-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 16px;
    }

    .matrix-chip {
      padding: 4px 10px;
      background: var(--mint-pale);
      border: 1px solid var(--mint-soft);
      border-radius: 6px;
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
    }

    .workflow-stream {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .stream-node {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 14px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary);
      transition: all 0.2s ease;
    }

    .stream-node:hover {
      background: var(--mint-pale);
      transform: translateX(4px);
    }

    .node-icon {
      width: 28px;
      height: 28px;
      background: #ffffff;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: bold;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      flex-shrink: 0;
    }

    .node-content {
      flex: 1;
    }

    .node-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
    }

    .node-status {
      font-size: 11px;
      color: var(--text-light);
    }

    .stream-badge {
      font-size: 11px;
      background: #ecfdf5;
      color: #059669;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 通用排版 */
    section {
      padding: 60px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 40px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: var(--mint-pale);
      padding: 4px 12px;
      border-radius: 99px;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 28px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-subtitle {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 数据指标条 */
    .metrics-bar {
      margin-top: -30px;
      position: relative;
      z-index: 10;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      padding: 24px 30px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border);
    }

    .metric-item {
      text-align: center;
      border-right: 1px solid var(--border);
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 4px;
      font-family: Arial, sans-serif;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 卡片网格通用 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

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

    .feature-icon-box {
      width: 44px;
      height: 44px;
      background: var(--mint-pale);
      border: 1px solid var(--mint-soft);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
      color: var(--primary);
    }

    .feature-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .feature-tag-row {
      display: flex;
      gap: 6px;
      margin-top: 14px;
      flex-wrap: wrap;
    }

    .micro-tag {
      font-size: 11px;
      padding: 2px 8px;
      background: #f1f5f9;
      color: var(--text-light);
      border-radius: 4px;
    }

    /* 平台介绍深度模块 */
    .about-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .about-visual-side {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
    }

    .about-visual-side img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      display: block;
      transition: transform 0.4s ease;
    }

    .about-visual-side:hover img {
      transform: scale(1.02);
    }

    .about-points-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-top: 20px;
    }

    .about-point-item {
      display: flex;
      gap: 12px;
    }

    .point-dot {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--mint-pale);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 3px;
    }

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

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-number {
      font-size: 36px;
      font-weight: 800;
      color: var(--mint-soft);
      line-height: 1;
      margin-bottom: 12px;
      font-family: Arial, sans-serif;
    }

    .step-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测高亮专区 */
    .benchmark-container {
      background: #ffffff;
      border: 2px solid var(--mint-soft);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .rating-banner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 20px 24px;
      background: linear-gradient(135deg, var(--mint-pale), #ffffff);
      border: 1px solid var(--mint-soft);
      border-radius: var(--radius-md);
      margin-bottom: 28px;
    }

    .rating-badge {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-circle {
      width: 68px;
      height: 68px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-mint));
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
    }

    .score-circle .val {
      font-size: 24px;
      line-height: 1;
    }

    .score-circle .max {
      font-size: 10px;
      opacity: 0.9;
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 18px;
      letter-spacing: 2px;
    }

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

    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .benchmark-table th,
    .benchmark-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border);
    }

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

    .benchmark-table tr:hover td {
      background-color: #fafbfc;
    }

    .highlight-cell {
      background-color: var(--mint-pale) !important;
      font-weight: 700;
      color: var(--primary);
    }

    /* 素材画廊展示 (非首屏) */
    .gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 20px;
    }

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

    .gallery-media-wrap {
      width: 100%;
      height: 280px;
      overflow: hidden;
      background: #e2e8f0;
    }

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

    .gallery-media-wrap:hover img {
      transform: scale(1.04);
    }

    .gallery-info {
      padding: 16px 20px;
    }

    .gallery-info h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .gallery-info p {
      font-size: 13px;
      color: var(--text-muted);
    }

    .banner-stream-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      margin-top: 24px;
    }

    .banner-stream-grid img {
      width: 100%;
      height: 140px;
      object-fit: cover;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
    }

    /* Token比价与模型矩阵 */
    .model-pills-wrap {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .model-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
    }

    .model-tag {
      padding: 6px 14px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 99px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      transition: all 0.2s;
    }

    .model-tag:hover {
      background: var(--mint-pale);
      border-color: var(--primary-mint);
      color: var(--primary);
    }

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

    .testimonial-quote {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      position: relative;
    }

    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .user-avatar-initial {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--mint-soft), #dbeafe);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }

    .user-meta h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-meta span {
      font-size: 12px;
      color: var(--text-light);
    }

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-item.active {
      border-color: var(--primary-mint);
    }

    .faq-question {
      padding: 16px 20px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      background: #ffffff;
    }

    .faq-question:hover {
      background-color: #fafbfc;
    }

    .faq-icon {
      font-size: 18px;
      color: var(--text-light);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background-color: #fcfdfc;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      padding: 0 20px;
    }

    .faq-item.active .faq-answer {
      max-height: 240px;
      padding: 12px 20px 20px;
      border-top: 1px solid #f1f5f9;
    }

    /* 表单与需求匹配区 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

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

    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      transition: all 0.2s;
      background-color: #ffffff;
      color: var(--text-main);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }

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

    .contact-info-panel {
      background: linear-gradient(135deg, var(--mint-pale), #ffffff);
      border: 1px solid var(--mint-soft);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .contact-media-row {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .qr-box {
      width: 105px;
      height: 105px;
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

    .contact-meta-item {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .contact-meta-item strong {
      color: var(--text-main);
    }

    /* 文章列表模块 */
    .articles-module-box {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 24px;
    }

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

    .article-badge-link {
      font-size: 13px;
      padding: 8px 14px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      color: var(--text-main);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-badge-link:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--mint-pale);
    }

    /* 页脚与友情链接 */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 50px 0 30px;
      border-top: 3px solid var(--primary);
      font-size: 13px;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 9px;
    }

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

    .footer-friend-links {
      padding-top: 24px;
      border-top: 1px solid #1e293b;
      margin-bottom: 24px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 10px;
    }

    .friend-links-list a {
      color: #94a3b8;
      font-size: 13px;
      transition: color 0.2s;
    }

    .friend-links-list a:hover {
      color: #ffffff;
    }

    .footer-bottom-bar {
      padding-top: 20px;
      border-top: 1px solid #1e293b;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
      color: #64748b;
    }

    /* 浮动客服入口 */
    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .dock-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      cursor: pointer;
      color: var(--primary);
      transition: all 0.25s ease;
    }

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

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .about-split {
        grid-template-columns: 1fr;
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .gallery-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .nav-links {
        display: none;
      }
      .menu-toggle {
        display: flex;
      }
      .nav-links.show {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 27px;
      }
      .hero-features-list {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .metric-item {
        border-right: none;
      }
      .grid-3, .grid-4, .steps-row {
        grid-template-columns: 1fr;
      }
      .banner-stream-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        align-items: flex-start;
      }
    }