:root {
      --ink: #0f172a;
      --ink-soft: #334155;
      --ink-muted: #64748b;
      --brand-a: #7c3aed;
      --brand-b: #06b6d4;
      --brand-c: #f472b6;
      --brand-gradient: linear-gradient(135deg, #7c3aed 0%, #06b6d4 50%, #f472b6 100%);
      --surface: #ffffff;
      --surface-soft: #f8fafc;
      --surface-tint: #f1f5f9;
      --border: #e2e8f0;
      --border-soft: #f1f5f9;
      --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 48px rgba(15, 23, 42, 0.10);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 999px;
      --container: 1200px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font);
      color: var(--ink);
      background: var(--surface-soft);
      line-height: 1.7;
      font-size: 16px;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    ul, ol {
      list-style: none;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }
    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* ---------- 导航 ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-soft);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      min-height: 68px;
      padding-top: 8px;
      padding-bottom: 8px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand img {
      height: 38px;
      width: auto;
      max-width: 140px;
      object-fit: contain;
    }
    .brand-text {
      font-size: 18px;
      font-weight: 800;
      letter-spacing: 0.5px;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      white-space: nowrap;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      display: inline-block;
      padding: 6px 11px;
      font-size: 14px;
      font-weight: 500;
      color: var(--ink-soft);
      border-radius: var(--radius-full);
      transition: color 0.2s, background 0.2s;
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: var(--brand-a);
      background: rgba(124, 58, 237, 0.07);
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 9px 20px;
      font-size: 14px;
      font-weight: 600;
      color: #fff;
      background: var(--brand-gradient);
      border-radius: var(--radius-full);
      box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
      transition: transform 0.2s, box-shadow 0.2s;
      white-space: nowrap;
    }
    .nav-cta:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(124, 58, 237, 0.45);
    }
    .menu-toggle {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: #fff;
      cursor: pointer;
    }
    .menu-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      margin: 0 auto;
      background: var(--ink);
      border-radius: 2px;
      transition: transform 0.25s, opacity 0.25s;
    }
    /* ---------- Hero ---------- */
    .hero {
      position: relative;
      overflow: hidden;
      padding: 80px 0 70px;
      background:
        radial-gradient(ellipse 70% 60% at 15% 20%, rgba(124, 58, 237, 0.13), transparent 60%),
        radial-gradient(ellipse 60% 50% at 85% 30%, rgba(6, 182, 212, 0.12), transparent 60%),
        radial-gradient(ellipse 50% 60% at 60% 90%, rgba(244, 114, 182, 0.10), transparent 60%),
        linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(124, 58, 237, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 58, 237, 0.04) 1px, transparent 1px);
      background-size: 56px 56px;
      mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
      -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
      pointer-events: none;
    }
    .hero .container {
      position: relative;
      z-index: 2;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      margin-bottom: 22px;
      font-size: 13px;
      font-weight: 600;
      color: var(--brand-a);
      background: rgba(124, 58, 237, 0.08);
      border: 1px solid rgba(124, 58, 237, 0.18);
      border-radius: var(--radius-full);
    }
    .hero-eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--brand-gradient);
      animation: pulse-dot 2s ease-in-out infinite;
    }
    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.35); }
    }
    .hero h1 {
      font-size: 46px;
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--ink);
      margin-bottom: 22px;
    }
    .hero h1 .grad {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero-lead {
      font-size: 17px;
      color: var(--ink-soft);
      max-width: 560px;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 38px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 30px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-full);
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s;
    }
    .btn-primary {
      color: #fff;
      background: var(--brand-gradient);
      box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(124, 58, 237, 0.45);
    }
    .btn-outline {
      color: var(--ink);
      background: #fff;
      border-color: var(--border);
      box-shadow: var(--shadow-sm);
    }
    .btn-outline:hover {
      border-color: var(--brand-a);
      color: var(--brand-a);
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
    }
    .hero-stat .num {
      font-size: 26px;
      font-weight: 800;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      line-height: 1.2;
    }
    .hero-stat .lbl {
      font-size: 13px;
      color: var(--ink-muted);
      margin-top: 2px;
    }
    .hero-visual {
      position: relative;
      padding: 28px;
    }
    .hero-card {
      position: relative;
      background: rgba(255, 255, 255, 0.75);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.9);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }
    .hero-card::before {
      content: "";
      position: absolute;
      top: -40%;
      right: -30%;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(6, 182, 212, 0.18), transparent 70%);
      pointer-events: none;
    }
    .hero-card-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--ink-muted);
      letter-spacing: 1px;
      margin-bottom: 18px;
    }
    .hero-model-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 22px;
    }
    .model-tag {
      display: inline-block;
      padding: 5px 12px;
      font-size: 12.5px;
      font-weight: 500;
      color: var(--ink-soft);
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-full);
      transition: border-color 0.2s, color 0.2s, transform 0.2s;
    }
    .model-tag:hover {
      border-color: var(--brand-a);
      color: var(--brand-a);
      transform: translateY(-1px);
    }
    .hero-mini-stats {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .mini-stat {
      padding: 14px 16px;
      background: rgba(248, 250, 252, 0.9);
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-sm);
    }
    .mini-stat .v {
      font-size: 18px;
      font-weight: 800;
      color: var(--ink);
    }
    .mini-stat .k {
      font-size: 12px;
      color: var(--ink-muted);
    }
    /* ---------- 通用 section ---------- */
    .section {
      padding: 80px 0;
    }
    .section-alt {
      background:
        radial-gradient(ellipse 60% 50% at 80% 10%, rgba(6, 182, 212, 0.05), transparent 60%),
        radial-gradient(ellipse 50% 50% at 10% 90%, rgba(124, 58, 237, 0.05), transparent 60%),
        var(--surface-soft);
    }
    .section-head {
      max-width: 720px;
      margin: 0 auto 52px;
      text-align: center;
    }
    .section-head.left {
      margin-left: 0;
      text-align: left;
    }
    .section-eyebrow {
      display: inline-block;
      padding: 4px 14px;
      margin-bottom: 16px;
      font-size: 12.5px;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--brand-a);
      background: rgba(124, 58, 237, 0.07);
      border-radius: var(--radius-full);
    }
    .section-head h2 {
      font-size: 34px;
      font-weight: 800;
      letter-spacing: -0.4px;
      color: var(--ink);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-head p {
      font-size: 16px;
      color: var(--ink-muted);
    }
    /* ---------- 数据指标 ---------- */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      padding: 30px 24px;
      text-align: center;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(124, 58, 237, 0.2);
    }
    .metric-card .num {
      font-size: 34px;
      font-weight: 800;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      line-height: 1.2;
      margin-bottom: 8px;
    }
    .metric-card .lbl {
      font-size: 14px;
      font-weight: 600;
      color: var(--ink);
      margin-bottom: 4px;
    }
    .metric-card .desc {
      font-size: 12.5px;
      color: var(--ink-muted);
    }
    /* ---------- 服务能力卡片 ---------- */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .service-card {
      position: relative;
      padding: 30px 26px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .service-card::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--brand-gradient);
      opacity: 0;
      transition: opacity 0.25s;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .service-card:hover::after {
      opacity: 1;
    }
    .service-icon {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      margin-bottom: 18px;
      font-size: 22px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(6, 182, 212, 0.1));
    }
    .service-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 8px;
    }
    .service-card p {
      font-size: 14px;
      color: var(--ink-muted);
      line-height: 1.65;
    }
    /* ---------- 平台介绍 / 关于 ---------- */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .about-features {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 28px;
    }
    .about-feature {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }
    .about-feature .dot {
      flex-shrink: 0;
      width: 30px;
      height: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      background: var(--brand-gradient);
      border-radius: 9px;
      margin-top: 2px;
    }
    .about-feature h4 {
      font-size: 15.5px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 3px;
    }
    .about-feature p {
      font-size: 13.5px;
      color: var(--ink-muted);
      line-height: 1.6;
    }
    .about-visual {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .about-visual .img-box {
      overflow: hidden;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      background: var(--surface-tint);
      box-shadow: var(--shadow-sm);
    }
    .about-visual .img-box:first-child {
      grid-row: span 2;
      display: flex;
      align-items: center;
    }
    .about-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .about-visual .img-box:hover img {
      transform: scale(1.04);
    }
    /* ---------- 流程时间线 ---------- */
    .flow-list {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 18px;
      counter-reset: flow;
    }
    .flow-item {
      position: relative;
      padding: 26px 20px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .flow-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .flow-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      margin-bottom: 16px;
      font-size: 15px;
      font-weight: 800;
      color: #fff;
      background: var(--brand-gradient);
      border-radius: 10px;
    }
    .flow-item h3 {
      font-size: 15px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 6px;
    }
    .flow-item p {
      font-size: 13px;
      color: var(--ink-muted);
      line-height: 1.6;
    }
    /* ---------- 对比评测 ---------- */
    .compare-wrap {
      display: grid;
      grid-template-columns: 320px 1fr;
      gap: 28px;
      align-items: stretch;
    }
    .compare-score {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      padding: 40px 28px;
      text-align: center;
      background: var(--brand-gradient);
      color: #fff;
      border-radius: var(--radius-lg);
      box-shadow: 0 16px 40px rgba(124, 58, 237, 0.28);
    }
    .compare-score .stars {
      font-size: 22px;
      letter-spacing: 3px;
      margin-bottom: 14px;
    }
    .compare-score .score-num {
      font-size: 56px;
      font-weight: 800;
      line-height: 1;
      margin-bottom: 4px;
    }
    .compare-score .score-total {
      font-size: 15px;
      opacity: 0.85;
      margin-bottom: 18px;
    }
    .compare-score .score-label {
      font-size: 15px;
      font-weight: 600;
      padding: 8px 22px;
      background: rgba(255, 255, 255, 0.2);
      border: 1px solid rgba(255, 255, 255, 0.35);
      border-radius: var(--radius-full);
    }
    .compare-table-wrap {
      overflow-x: auto;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 520px;
    }
    .compare-table th,
    .compare-table td {
      padding: 14px 20px;
      text-align: left;
      font-size: 14px;
      border-bottom: 1px solid var(--border-soft);
    }
    .compare-table th {
      background: var(--surface-tint);
      font-weight: 700;
      color: var(--ink);
      white-space: nowrap;
    }
    .compare-table td:first-child {
      font-weight: 600;
      color: var(--ink);
      white-space: nowrap;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .yes {
      color: #059669;
      font-weight: 600;
    }
    .compare-table .mid {
      color: #d97706;
      font-weight: 600;
    }
    /* ---------- 案例中心 ---------- */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .case-card {
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .case-img {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: var(--surface-tint);
    }
    .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .case-card:hover .case-img img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 20px 22px;
    }
    .case-body h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 6px;
    }
    .case-body p {
      font-size: 13.5px;
      color: var(--ink-muted);
      line-height: 1.6;
    }
    /* ---------- 评论 ---------- */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      display: flex;
      flex-direction: column;
      padding: 26px 24px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .review-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .review-stars {
      color: #f59e0b;
      font-size: 14px;
      letter-spacing: 2px;
      margin-bottom: 12px;
    }
    .review-text {
      flex: 1;
      font-size: 14px;
      color: var(--ink-soft);
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--border-soft);
    }
    .review-avatar {
      width: 40px;
      height: 40px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      background: var(--brand-gradient);
      border-radius: 50%;
    }
    .review-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
    }
    .review-role {
      font-size: 12px;
      color: var(--ink-muted);
    }
    /* ---------- 文章 / 资讯 ---------- */
    .article-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .article-card {
      display: flex;
      flex-direction: column;
      padding: 24px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    }
    .article-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(124, 58, 237, 0.2);
    }
    .article-tag {
      align-self: flex-start;
      padding: 3px 11px;
      font-size: 11.5px;
      font-weight: 600;
      color: var(--brand-a);
      background: rgba(124, 58, 237, 0.07);
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }
    .article-card h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--ink);
      line-height: 1.5;
      margin-bottom: 8px;
    }
    .article-card p {
      font-size: 13.5px;
      color: var(--ink-muted);
      line-height: 1.6;
      flex: 1;
    }
    .article-link {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      margin-top: 16px;
      font-size: 13.5px;
      font-weight: 600;
      color: var(--brand-a);
    }
    .article-link::after {
      content: "→";
      transition: transform 0.2s;
    }
    .article-card:hover .article-link::after {
      transform: translateX(4px);
    }
    /* ---------- Token 比价 ---------- */
    .token-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      align-items: stretch;
    }
    .token-panel {
      padding: 32px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
    }
    .token-panel h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 10px;
    }
    .token-panel .sub {
      font-size: 13.5px;
      color: var(--ink-muted);
      margin-bottom: 22px;
    }
    .price-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .price-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 16px;
      background: var(--surface-soft);
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-sm);
      transition: background 0.2s, border-color 0.2s;
    }
    .price-row:hover {
      background: #fff;
      border-color: rgba(124, 58, 237, 0.2);
    }
    .price-name {
      font-size: 14px;
      font-weight: 600;
      color: var(--ink);
    }
    .price-val {
      font-size: 14px;
      font-weight: 700;
      color: var(--brand-a);
    }
    .price-note {
      font-size: 12px;
      color: var(--ink-muted);
      margin-top: 16px;
    }
    /* ---------- 咨询 / 表单 ---------- */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.15fr;
      gap: 40px;
      align-items: start;
    }
    .contact-info {
      padding: 34px;
      background: linear-gradient(160deg, rgba(124, 58, 237, 0.06), rgba(6, 182, 212, 0.05));
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
    }
    .contact-info h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 8px;
    }
    .contact-info > p {
      font-size: 14px;
      color: var(--ink-muted);
      margin-bottom: 24px;
    }
    .contact-items {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 14px;
      color: var(--ink-soft);
    }
    .contact-item .ic {
      flex-shrink: 0;
      width: 34px;
      height: 34px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: 10px;
    }
    .contact-item strong {
      display: block;
      font-size: 14px;
      color: var(--ink);
      margin-bottom: 1px;
    }
    .contact-item span {
      font-size: 13px;
      color: var(--ink-muted);
      word-break: break-all;
    }
    .qr-box {
      margin-top: 24px;
      padding-top: 22px;
      border-top: 1px dashed var(--border);
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .qr-box img {
      width: 96px;
      height: 96px;
      object-fit: contain;
      border-radius: 10px;
      border: 1px solid var(--border-soft);
      background: #fff;
    }
    .qr-box .qr-txt strong {
      display: block;
      font-size: 14px;
      color: var(--ink);
      margin-bottom: 3px;
    }
    .qr-box .qr-txt span {
      font-size: 12.5px;
      color: var(--ink-muted);
    }
    .form-card {
      padding: 34px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
    }
    .form-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 6px;
    }
    .form-card > p {
      font-size: 13.5px;
      color: var(--ink-muted);
      margin-bottom: 24px;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-field {
      margin-bottom: 16px;
    }
    .form-field label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--ink-soft);
      margin-bottom: 6px;
    }
    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      padding: 11px 14px;
      font-size: 14px;
      color: var(--ink);
      background: var(--surface-soft);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    }
    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      background: #fff;
      border-color: var(--brand-a);
      box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
    }
    .form-field textarea {
      min-height: 96px;
      resize: vertical;
    }
    .form-submit {
      width: 100%;
      margin-top: 6px;
    }
    /* ---------- FAQ ---------- */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: box-shadow 0.25s, border-color 0.25s;
    }
    .faq-item.open {
      border-color: rgba(124, 58, 237, 0.25);
      box-shadow: var(--shadow-sm);
    }
    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      padding: 20px 24px;
      font-size: 15.5px;
      font-weight: 600;
      color: var(--ink);
      text-align: left;
      background: transparent;
      border: none;
      cursor: pointer;
    }
    .faq-q .arrow {
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 26px;
      height: 26px;
      font-size: 14px;
      color: var(--brand-a);
      background: rgba(124, 58, 237, 0.07);
      border-radius: 50%;
      transition: transform 0.3s;
    }
    .faq-item.open .faq-q .arrow {
      transform: rotate(45deg);
    }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }
    .faq-a-inner {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--ink-muted);
      line-height: 1.75;
    }
    /* ---------- 标签云 / 友情链接 ---------- */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .tag-cloud a {
      padding: 6px 15px;
      font-size: 13px;
      color: var(--ink-soft);
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-full);
      transition: color 0.2s, border-color 0.2s, transform 0.2s;
    }
    .tag-cloud a:hover {
      color: var(--brand-a);
      border-color: var(--brand-a);
      transform: translateY(-1px);
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 24px;
      justify-content: center;
    }
    .friend-links a {
      font-size: 13px;
      color: var(--ink-muted);
      transition: color 0.2s;
    }
    .friend-links a:hover {
      color: var(--brand-a);
    }
    /* ---------- CTA 横幅 ---------- */
    .cta-banner {
      position: relative;
      overflow: hidden;
      padding: 52px 40px;
      text-align: center;
      background: var(--brand-gradient);
      border-radius: var(--radius-lg);
      color: #fff;
      box-shadow: 0 20px 48px rgba(124, 58, 237, 0.3);
    }
    .cta-banner::before {
      content: "";
      position: absolute;
      top: -60%;
      left: -10%;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 255, 255, 0.18), transparent 70%);
      pointer-events: none;
    }
    .cta-banner h2 {
      position: relative;
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .cta-banner p {
      position: relative;
      font-size: 15.5px;
      opacity: 0.92;
      margin-bottom: 28px;
    }
    .cta-actions {
      position: relative;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      justify-content: center;
    }
    .btn-white {
      color: var(--brand-a);
      background: #fff;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }
    .btn-white:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(0, 0, 0, 0.2);
    }
    .btn-ghost {
      color: #fff;
      background: rgba(255, 255, 255, 0.16);
      border: 1px solid rgba(255, 255, 255, 0.5);
    }
    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.26);
      transform: translateY(-2px);
    }
    /* ---------- 浮动客服 / 返回顶部 ---------- */
    .float-actions {
      position: fixed;
      right: 22px;
      bottom: 28px;
      z-index: 90;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 19px;
      color: #fff;
      background: var(--brand-gradient);
      border: none;
      border-radius: 50%;
      box-shadow: 0 8px 20px rgba(124, 58, 237, 0.35);
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .float-btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 26px rgba(124, 58, 237, 0.45);
    }
    .float-btn.top-btn {
      background: #fff;
      color: var(--brand-a);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: opacity 0.25s, visibility 0.25s, transform 0.25s;
    }
    .float-btn.top-btn.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    /* ---------- Footer ---------- */
    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 56px 0 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .footer-brand img {
      height: 36px;
      width: auto;
      max-width: 130px;
      object-fit: contain;
    }
    .footer-brand span {
      font-size: 17px;
      font-weight: 800;
      color: #fff;
    }
    .footer-desc {
      font-size: 13.5px;
      line-height: 1.75;
      color: #94a3b8;
      margin-bottom: 18px;
    }
    .footer-col h4 {
      font-size: 14.5px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 9px;
    }
    .footer-col a,
    .footer-col li {
      font-size: 13.5px;
      color: #94a3b8;
      transition: color 0.2s;
      word-break: break-all;
    }
    .footer-col a:hover {
      color: #a78bfa;
    }
    .footer-bottom {
      padding: 22px 0;
      font-size: 12.5px;
      color: #64748b;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }
    .footer-bottom a {
      color: #94a3b8;
    }
    .footer-bottom a:hover {
      color: #a78bfa;
    }
    /* ---------- 入场动画 ---------- */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    /* ---------- 响应式 ---------- */
    @media (max-width: 1080px) {
      .hero h1 { font-size: 38px; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-list { grid-template-columns: repeat(3, 1fr); }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .article-list { grid-template-columns: repeat(2, 1fr); }
      .compare-wrap { grid-template-columns: 1fr; }
      .compare-score { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 16px 28px; padding: 30px; }
      .compare-score .stars, .compare-score .score-num, .compare-score .score-total { margin-bottom: 0; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 900px) {
      .nav-links,
      .nav-cta { display: none; }
      .menu-toggle { display: flex; }
      .site-header.menu-open .nav-links {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        gap: 2px;
        padding: 12px 20px 18px;
        background: #fff;
        border-bottom: 1px solid var(--border-soft);
        box-shadow: var(--shadow-md);
      }
      .site-header.menu-open .nav-links a {
        padding: 10px 12px;
        border-radius: var(--radius-sm);
      }
      .site-header.menu-open .nav-cta {
        display: inline-flex;
        margin: 6px 20px 18px;
      }
      .hero-grid { grid-template-columns: 1fr; gap: 36px; }
      .hero-visual { padding: 0; }
      .about-grid { grid-template-columns: 1fr; gap: 36px; }
      .token-grid { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 680px) {
      .container { padding-left: 18px; padding-right: 18px; }
      .section { padding: 58px 0; }
      .hero { padding: 52px 0 48px; }
      .hero h1 { font-size: 30px; }
      .hero-lead { font-size: 15.5px; }
      .hero-stats { gap: 22px; }
      .hero-stat .num { font-size: 22px; }
      .metrics-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
      .metric-card { padding: 22px 14px; }
      .metric-card .num { font-size: 26px; }
      .services-grid { grid-template-columns: 1fr; }
      .flow-list { grid-template-columns: 1fr 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr; }
      .section-head h2 { font-size: 26px; }
      .form-row { grid-template-columns: 1fr; }
      .form-card, .contact-info, .token-panel { padding: 24px 20px; }
      .cta-banner { padding: 40px 22px; }
      .cta-banner h2 { font-size: 23px; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; align-items: flex-start; }
      .float-actions { right: 14px; bottom: 18px; }
      .float-btn { width: 44px; height: 44px; font-size: 17px; }
    }
    @media (max-width: 420px) {
      .metrics-grid { grid-template-columns: 1fr; }
      .flow-list { grid-template-columns: 1fr; }
      .hero-actions .btn { width: 100%; }
    }