/* 全局变量与鲜亮风色彩体系 */
    :root {
      --primary: #0284c7;
      --primary-light: #38bdf8;
      --primary-vivid: #0ea5e9;
      --accent: #f59e0b;
      --accent-vivid: #ff5722;
      --success: #10b981;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-card-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --border-color: #e2e8f0;
      --border-highlight: #bae6fd;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 14px -2px rgba(2, 132, 199, 0.08), 0 2px 6px -1px rgba(0,0,0,0.04);
      --shadow-lg: 0 12px 28px -4px rgba(2, 132, 199, 0.12), 0 4px 12px -2px rgba(0,0,0,0.05);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-full: 9999px;
      --container-max: 1240px;
      --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-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    /* 导航栏样式 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

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

    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      height: 44px;
    }

    .brand-text-wrap {
      display: flex;
      flex-direction: column;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.2;
      letter-spacing: -0.5px;
    }

    .brand-tagline {
      font-size: 0.75rem;
      color: var(--primary);
      font-weight: 600;
    }

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

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
      text-decoration: none;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: #f0f9ff;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      text-decoration: none;
      border-radius: var(--radius-full);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #0284c7 0%, #0ea5e9 100%);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(14, 165, 233, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(14, 165, 233, 0.45);
      color: #ffffff;
    }

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

    .btn-secondary:hover {
      background-color: #f0f9ff;
      border-color: var(--primary-light);
      transform: translateY(-2px);
    }

    .btn-accent {
      background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    }

    .btn-accent:hover {
      background: linear-gradient(135deg, #d97706 0%, #c2410c 100%);
      transform: translateY(-2px);
      color: #ffffff;
    }

    .btn-sm {
      padding: 6px 14px;
      font-size: 0.85rem;
    }

    .btn-lg {
      padding: 14px 32px;
      font-size: 1.05rem;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* 首屏 Hero 区域 (严格无图片，纯科技排版与CSS鲜艳微光) */
    .hero-section {
      position: relative;
      padding: 70px 0 60px;
      background: linear-gradient(180deg, #e0f2fe 0%, #f0fdf4 60%, var(--bg-main) 100%);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-decor-circle {
      position: absolute;
      border-radius: 50%;
      filter: blur(80px);
      opacity: 0.6;
      pointer-events: none;
    }

    .hero-decor-1 {
      top: -100px;
      left: 10%;
      width: 400px;
      height: 400px;
      background: #38bdf8;
    }

    .hero-decor-2 {
      top: 50px;
      right: 5%;
      width: 450px;
      height: 450px;
      background: #fed7aa;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background-color: #ffffff;
      border: 1px solid #bae6fd;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 700;
      color: #0369a1;
      box-shadow: 0 2px 8px rgba(2, 132, 199, 0.1);
      margin-bottom: 24px;
    }

    .hero-pill-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #10b981;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.25;
      color: #0c4a6e;
      letter-spacing: -1px;
      margin-bottom: 20px;
    }

    .hero-title-gradient {
      background: linear-gradient(135deg, #0284c7 0%, #0d9488 50%, #f59e0b 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .hero-feature-badges {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin-top: 24px;
    }

    .badge-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      box-shadow: var(--shadow-sm);
    }

    .badge-icon {
      color: var(--primary);
      font-weight: bold;
    }

    /* 模块通用标题与框架 */
    .section-block {
      padding: 70px 0;
      position: relative;
    }

    .section-alt {
      background-color: #f1f5f9;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.84rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: #e0f2fe;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 统计指标卡片 Grid */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -30px;
      position: relative;
      z-index: 10;
      margin-bottom: 50px;
    }

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-top: 4px solid var(--primary);
      padding: 24px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      text-align: center;
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-top-color: var(--accent);
    }

    .stat-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-num span {
      font-size: 1.2rem;
      color: var(--primary);
      margin-left: 2px;
    }

    .stat-label {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 平台核心模型矩阵 */
    .model-tags-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      margin-bottom: 40px;
    }

    .model-tags-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .model-tags-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-tag {
      padding: 5px 12px;
      background: #f8fafc;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      font-weight: 600;
      color: #334155;
      transition: var(--transition);
    }

    .model-tag:hover {
      background: #0284c7;
      color: #ffffff;
      border-color: #0284c7;
    }

    .model-tag.highlight {
      background: #e0f2fe;
      border-color: #7dd3fc;
      color: #0369a1;
      font-weight: 700;
    }

    /* 核心能力与场景卡片 Grid */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .card-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
    }

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

    .service-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.22rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-card .feature-points {
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      margin-top: auto;
    }

    .service-card .feature-points li {
      font-size: 0.85rem;
      color: var(--text-sub);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .service-card .feature-points li::before {
      content: "✓";
      color: var(--success);
      font-weight: bold;
    }

    /* 平台介绍 & 图文混合区块 */
    .about-media-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      margin-bottom: 40px;
    }

    .about-info-title {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      line-height: 1.35;
    }

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

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

    .about-list li {
      font-size: 0.92rem;
      color: var(--text-main);
      font-weight: 600;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .about-list li span {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: #e0f2fe;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
    }

    .img-container {
      width: 100%;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .img-container img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }

    .img-container:hover img {
      transform: scale(1.02);
    }

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

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

    .step-number {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #0284c7 0%, #38bdf8 100%);
      color: #ffffff;
      font-size: 1.2rem;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      box-shadow: 0 4px 10px rgba(2, 132, 199, 0.3);
    }

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

    .step-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测表格与卡片 */
    .review-score-hero {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 36px;
      box-shadow: var(--shadow-lg);
    }

    .score-left h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: #38bdf8;
    }

    .score-left p {
      font-size: 0.95rem;
      color: #cbd5e1;
    }

    .score-badge-box {
      display: flex;
      align-items: center;
      gap: 20px;
      background: rgba(255, 255, 255, 0.1);
      padding: 16px 28px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .score-value {
      font-size: 3.2rem;
      font-weight: 900;
      color: #facc15;
      line-height: 1;
    }

    .score-stars {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .stars-text {
      color: #facc15;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }

    .score-meta {
      font-size: 0.85rem;
      color: #94a3b8;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .custom-table th,
    .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

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

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

    .custom-table .highlight-col {
      background-color: #f0fdf4;
      font-weight: 700;
      color: #065f46;
    }

    .custom-table .tag-win {
      display: inline-block;
      padding: 2px 8px;
      background: #dcfce7;
      color: #15803d;
      border-radius: var(--radius-sm);
      font-size: 0.78rem;
      font-weight: 700;
    }

    /* Token 比价卡片 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .token-card.featured {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .token-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: var(--radius-full);
    }

    .token-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      margin: 16px 0;
      line-height: 1;
    }

    .token-price span {
      font-size: 0.9rem;
      color: var(--text-sub);
      font-weight: normal;
    }

    .token-features {
      list-style: none;
      margin-bottom: 24px;
      flex-grow: 1;
    }

    .token-features li {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .token-features li::before {
      content: "•";
      color: var(--primary);
      font-size: 1.2rem;
    }

    /* 客户评价 Cards */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .review-quote {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e0f2fe;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .review-meta h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* FAQ 手风琴面板 */
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 960px;
      margin: 0 auto;
    }

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

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

    .faq-trigger {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .faq-icon {
      font-size: 1.3rem;
      color: var(--primary);
      transition: transform 0.25s ease;
      font-weight: bold;
    }

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #f8fafc;
      border-top: 1px solid transparent;
    }

    .faq-content-inner {
      padding: 18px 24px;
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-content {
      max-height: 300px;
      border-top-color: var(--border-color);
    }

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

    /* 需求匹配与联系表单 */
    .form-container-box {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-info-col h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .form-info-col p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 24px;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .contact-icon-pill {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: #e0f2fe;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 1rem;
    }

    .contact-qr-wrapper {
      margin-top: 24px;
      padding: 16px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: inline-block;
      text-align: center;
    }

    .contact-qr-wrapper img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 8px;
      border-radius: var(--radius-sm);
    }

    .contact-qr-wrapper span {
      font-size: 0.82rem;
      color: var(--text-sub);
      font-weight: 600;
    }

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

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

    .form-group label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: #ffffff;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
    }

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

    /* 资讯与友情链接 */
    .article-list-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 40px;
    }

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

    .article-link-tag {
      padding: 6px 14px;
      background: #f1f5f9;
      color: var(--text-muted);
      text-decoration: none;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      transition: var(--transition);
    }

    .article-link-tag:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* 友情链接容器 */
    .friend-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      box-shadow: var(--shadow-sm);
    }

    .friend-links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      white-space: nowrap;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links-list a {
      color: var(--text-sub);
      text-decoration: none;
      font-size: 0.86rem;
      transition: var(--transition);
    }

    .friend-links-list a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    /* 底部 Footer */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }

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

    .footer-links-list a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links-list a:hover {
      color: #38bdf8;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 0.84rem;
    }

    .footer-bottom a {
      color: #94a3b8;
      text-decoration: none;
    }

    .footer-bottom a:hover {
      color: #38bdf8;
    }

    /* 浮动客服与返回顶部 */
    .float-toolbar {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 14px rgba(0,0,0,0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      font-size: 1.25rem;
      cursor: pointer;
      transition: var(--transition);
      position: relative;
    }

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

    .float-qr-pop {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      width: 140px;
      text-align: center;
      display: none;
      pointer-events: none;
    }

    .float-qr-pop img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 4px;
    }

    .float-qr-pop span {
      display: block;
      font-size: 0.75rem;
      color: var(--text-main);
      font-weight: 700;
      margin-top: 6px;
    }

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

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .card-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        display: none;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        width: 100%;
        padding: 10px 12px;
      }
      .about-media-box,
      .form-container-box {
        grid-template-columns: 1fr;
      }
      .card-grid-3,
      .card-grid-2,
      .token-grid,
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .score-badge-box {
        width: 100%;
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }