:root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-dark: #0f172a;
      --text-muted: #475569;
      --accent-coral: #ff3366;
      --accent-cyan: #00e5ff;
      --accent-yellow: #ffb703;
      --accent-purple: #7928ca;
      --accent-blue: #2563eb;
      --border-color: #e2e8f0;
      --shadow-pop: 4px 4px 0px rgba(15, 23, 42, 0.9);
      --shadow-hover: 6px 6px 0px #0f172a;
      --radius-base: 14px;
      --radius-sm: 8px;
    }

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

    html {
      scroll-behavior: smooth;
      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-dark);
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-dark);
      line-height: 1.6;
      overflow-x: hidden;
    }

    .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: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--text-dark);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 900;
      color: var(--text-dark);
      letter-spacing: -0.5px;
    }

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

    .nav-links a {
      color: var(--text-dark);
      text-decoration: none;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }

    .nav-links a:hover {
      background-color: var(--accent-yellow);
      color: var(--text-dark);
    }

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

    .btn-contrast {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--accent-coral);
      color: #ffffff;
      font-weight: 800;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      text-decoration: none;
      border: 2px solid var(--text-dark);
      box-shadow: 3px 3px 0px var(--text-dark);
      transition: all 0.2s ease;
      cursor: pointer;
    }

    .btn-contrast:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--text-dark);
      background-color: #ff1a53;
      color: #ffffff;
    }

    .btn-cyan {
      background-color: var(--accent-cyan);
      color: var(--text-dark);
    }
    .btn-cyan:hover {
      background-color: #00c4da;
      color: var(--text-dark);
    }

    .btn-yellow {
      background-color: var(--accent-yellow);
      color: var(--text-dark);
    }
    .btn-yellow:hover {
      background-color: #e5a400;
      color: var(--text-dark);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: 2px solid var(--text-dark);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      font-weight: bold;
      cursor: pointer;
    }

    /* 区域通用样式 */
    section {
      padding: 70px 0;
      border-bottom: 2px solid var(--border-color);
    }

    .section-title-wrap {
      text-align: center;
      margin-bottom: 45px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      padding: 4px 12px;
      border-radius: 20px;
      border: 2px solid var(--text-dark);
      background-color: var(--accent-yellow);
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-dark);
      line-height: 1.25;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      margin-top: 10px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* 首屏 HERO (严格无图片) */
    .hero-section {
      background: linear-gradient(135deg, #fff5f8 0%, #f0f9ff 100%);
      padding: 90px 0 80px 0;
      position: relative;
    }

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

    .hero-badge-row {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 18px;
    }

    .hero-badge {
      background-color: var(--accent-purple);
      color: #ffffff;
      font-weight: 800;
      font-size: 0.85rem;
      padding: 5px 12px;
      border-radius: var(--radius-sm);
      border: 2px solid var(--text-dark);
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--text-dark);
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(90deg, var(--accent-coral), var(--accent-purple));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      border-bottom: 4px solid var(--accent-yellow);
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 30px;
      line-height: 1.7;
    }

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

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 15px;
      background: #ffffff;
      border: 2px solid var(--text-dark);
      padding: 16px;
      border-radius: var(--radius-base);
      box-shadow: var(--shadow-pop);
    }

    .metric-item {
      text-align: center;
      border-right: 2px dashed var(--border-color);
    }

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

    .metric-num {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--accent-coral);
    }

    .metric-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 首屏纯CSS控制台卡片 */
    .hero-console {
      background: #ffffff;
      border: 3px solid var(--text-dark);
      border-radius: var(--radius-base);
      box-shadow: 8px 8px 0px var(--text-dark);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .console-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--border-color);
    }

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

    .dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1px solid var(--text-dark);
    }
    .dot-1 { background-color: var(--accent-coral); }
    .dot-2 { background-color: var(--accent-yellow); }
    .dot-3 { background-color: var(--accent-cyan); }

    .console-status {
      font-size: 0.8rem;
      font-weight: 800;
      background: #e6fffa;
      color: #047857;
      padding: 2px 8px;
      border-radius: 4px;
      border: 1px solid #10b981;
    }

    .console-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .console-block {
      background: var(--bg-main);
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-sm);
      padding: 12px;
    }

    .console-block-title {
      font-size: 0.85rem;
      font-weight: 800;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .console-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 4px;
    }

    .mini-tag {
      font-size: 0.72rem;
      padding: 2px 6px;
      background: #ffffff;
      border: 1px solid var(--text-dark);
      border-radius: 4px;
      font-weight: 700;
    }

    .console-banner-cta {
      background: linear-gradient(90deg, #ffefe6 0%, #ffeaf1 100%);
      border: 2px dashed var(--accent-coral);
      padding: 12px;
      border-radius: var(--radius-sm);
      text-align: center;
      font-weight: 800;
      font-size: 0.9rem;
    }

    /* 平台矩阵卡片与网格 */
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .feature-card {
      background: var(--bg-card);
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: var(--shadow-hover);
    }

    .card-icon-pill {
      display: inline-block;
      width: 44px;
      height: 44px;
      line-height: 40px;
      text-align: center;
      font-size: 1.3rem;
      background: var(--accent-yellow);
      border: 2px solid var(--text-dark);
      border-radius: 10px;
      margin-bottom: 16px;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-dark);
    }

    .feature-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业方案与图文区 */
    .media-card {
      background: var(--bg-card);
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-base);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
    }

    .media-card-img-wrap {
      width: 100%;
      background: #eee;
      border-bottom: 2px solid var(--text-dark);
    }

    .media-card-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    .media-card-content {
      padding: 20px;
    }

    .media-card-title {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    /* 对比评测高能卡片 */
    .eval-box {
      background: #ffffff;
      border: 3px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 30px;
      box-shadow: 8px 8px 0px var(--text-dark);
    }

    .eval-score-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(90deg, #fff0f5 0%, #eef6ff 100%);
      border: 2px solid var(--text-dark);
      padding: 20px;
      border-radius: var(--radius-sm);
      margin-bottom: 24px;
    }

    .score-badge-main {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--accent-coral);
    }

    .score-star {
      color: #ff9900;
      font-size: 1.2rem;
      font-weight: 800;
    }

    .table-container {
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border: 2px solid var(--text-dark);
      font-size: 0.95rem;
    }

    .eval-table th {
      background: var(--accent-yellow);
      font-weight: 900;
    }

    .eval-table td:nth-child(2) {
      background: #f0fdf4;
      font-weight: 800;
      color: #166534;
    }

    /* 流程步骤 */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .step-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 20px;
      box-shadow: var(--shadow-pop);
      position: relative;
    }

    .step-badge {
      display: inline-block;
      background: var(--accent-coral);
      color: #ffffff;
      font-weight: 900;
      padding: 2px 10px;
      border-radius: 12px;
      border: 2px solid var(--text-dark);
      font-size: 0.8rem;
      margin-bottom: 12px;
    }

    /* 价格与Token比价 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      position: relative;
    }

    .token-card.featured {
      border: 3px solid var(--accent-coral);
      background: #fffafa;
    }

    .token-card-tag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--accent-coral);
      color: #ffffff;
      font-weight: 800;
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: 4px;
      border: 1px solid var(--text-dark);
    }

    .token-price {
      font-size: 2rem;
      font-weight: 900;
      color: var(--accent-coral);
      margin: 12px 0;
    }

    .token-list {
      list-style: none;
      margin-top: 15px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .token-list li {
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: 3px 3px 0px var(--text-dark);
    }

    .faq-question {
      padding: 16px 20px;
      font-weight: 800;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      transition: background 0.2s ease;
    }

    .faq-question:hover {
      background: #f8fafc;
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 900;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      padding: 0 20px 16px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed var(--border-color);
      padding-top: 12px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

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

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .review-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 20px;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 16px;
      padding-top: 12px;
      border-top: 2px dashed var(--border-color);
    }

    .user-avatar-pill {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--accent-cyan);
      border: 2px solid var(--text-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: var(--text-dark);
    }

    /* 表单与需求匹配 */
    .form-wrapper {
      max-width: 760px;
      margin: 0 auto;
      background: #ffffff;
      border: 3px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 35px;
      box-shadow: 8px 8px 0px var(--text-dark);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 16px;
    }

    .form-group label {
      font-weight: 800;
      font-size: 0.95rem;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: #fdfdfd;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--accent-coral);
      box-shadow: 0 0 0 3px rgba(255, 51, 102, 0.2);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* 文章与外链 */
    .article-links-box {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 20px;
      box-shadow: var(--shadow-pop);
      margin-top: 20px;
    }

    .article-links-box a {
      display: inline-block;
      margin: 6px 12px 6px 0;
      padding: 6px 14px;
      background: #f1f5f9;
      color: var(--text-dark);
      text-decoration: none;
      font-weight: 700;
      font-size: 0.9rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--text-dark);
      transition: all 0.2s ease;
    }

    .article-links-box a:hover {
      background: var(--accent-yellow);
    }

    /* 联系与二维码 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 30px;
      align-items: center;
    }

    .qr-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-base);
      padding: 20px;
      text-align: center;
      box-shadow: var(--shadow-pop);
    }

    .qr-card img {
      max-width: 160px;
      height: auto;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-sm);
      margin: 12px auto;
      display: block;
    }

    /* 底部通用规范 */
    .site-footer {
      background: #ffffff;
      border-top: 3px solid var(--text-dark);
      padding: 50px 0 30px 0;
      color: var(--text-dark);
    }

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

    .footer-col h4 {
      font-size: 1.1rem;
      font-weight: 900;
      margin-bottom: 14px;
      color: var(--text-dark);
    }

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

    .footer-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.9rem;
      font-weight: 600;
    }

    .footer-links-list a:hover {
      color: var(--accent-coral);
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .friend-links-wrap a {
      font-size: 0.85rem;
      color: var(--text-dark);
      background: #f1f5f9;
      border: 1px solid var(--text-dark);
      padding: 4px 10px;
      border-radius: 4px;
      text-decoration: none;
      font-weight: 700;
    }

    .friend-links-wrap a:hover {
      background: var(--accent-cyan);
    }

    .footer-bottom {
      border-top: 2px solid var(--border-color);
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 浮动客服入口 */
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: var(--accent-yellow);
      border: 2px solid var(--text-dark);
      border-radius: 50%;
      box-shadow: 3px 3px 0px var(--text-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      text-decoration: none;
      color: var(--text-dark);
      font-size: 1.1rem;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .float-btn:hover {
      transform: scale(1.08);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-grid { grid-template-columns: 1fr; }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .step-grid { grid-template-columns: repeat(2, 1fr); }
      .token-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 2px solid var(--text-dark);
        padding: 15px 0;
      }
      .nav-links.active { display: flex; }
      .menu-toggle { display: block; }
      .hero-title { font-size: 2.1rem; }
      .grid-4, .grid-3, .grid-2, .step-grid { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
    }