:root {
      color-scheme: light;
      --ink: #211d2b;
      --muted: #696476;
      --line: #e8e4ef;
      --paper: #fbfaff;
      --purple: #6c3ee8;
      --purple-dark: #4e27b6;
      --pink: #e94d9b;
      --teal: #147e78;
      --lime: #d8f36a;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(251,250,255,.94); border-bottom: 1px solid rgba(232,228,239,.9); backdrop-filter: blur(14px); }
    .nav-shell { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; font-size: 17px; }
    .ai-page-logo { width: 38px; max-width: 100%; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 9px 10px; color: #514b5d; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover { color: var(--purple); }
    .nav-cta, .button { display: inline-flex; justify-content: center; align-items: center; gap: 9px; border: 0; border-radius: 4px; padding: 12px 18px; background: var(--purple); color: #fff; font-weight: 700; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
    .nav-cta { flex: 0 0 auto; padding: 10px 14px; font-size: 13px; }
    .nav-cta:hover, .button:hover { background: var(--purple-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(87,49,190,.2); }
    .button-outline { border: 1px solid #d9d2e8; background: #fff; color: var(--ink); }
    .button-outline:hover { background: #f5f1ff; color: var(--purple-dark); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; color: var(--ink); background: #fff; }
    .menu-toggle svg { width: 20px; height: 20px; }
    .hero { position: relative; overflow: hidden; padding: 76px 0 56px; background: #f2edff; border-bottom: 1px solid #e5dcfa; }
    .hero::before { position: absolute; inset: 0 0 auto; height: 5px; background: linear-gradient(90deg,var(--purple),var(--pink),#f49b60,var(--lime)); content: ""; }
    .hero-grid { display: grid; grid-template-columns: minmax(0,1.12fr) minmax(290px,.88fr); align-items: center; gap: 56px; }
    .eyebrow { margin: 0 0 16px; color: var(--purple-dark); font-size: 12px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
    h1 { max-width: 680px; margin: 0; font-size: clamp(38px,5.5vw,66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 610px; margin: 22px 0 28px; color: #5f596c; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin: 20px 0 0; color: #746c80; font-size: 13px; }
    .hero-art { position: relative; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; padding: 18px; border: 1px solid #ded4f4; background: rgba(255,255,255,.55); }
    .signal-card { min-height: 116px; padding: 15px; border: 1px solid #e9e3f3; background: #fff; transition: transform .25s ease, box-shadow .25s ease; }
    .signal-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(58,34,105,.1); }
    .signal-card strong { display: block; margin: 10px 0 3px; font-size: 15px; }
    .signal-card span { color: var(--muted); font-size: 12px; }
    .signal-icon { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 4px; color: #fff; background: var(--purple); font-size: 14px; font-weight: 800; }
    .signal-card:nth-child(2) .signal-icon { background: var(--pink); }
    .signal-card:nth-child(3) .signal-icon { background: var(--teal); }
    .signal-card:nth-child(4) .signal-icon { color: var(--ink); background: var(--lime); }
    .metric-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 50px; border-top: 1px solid #ddd5ee; }
    .metric { padding: 19px 14px 0 0; }
    .metric strong { display: block; font-size: 20px; }
    .metric span { color: var(--muted); font-size: 12px; }
    main { overflow: clip; }
    .section { padding: 72px 0; }
    .section-tint { background: #f3effb; border-block: 1px solid #e9e2f5; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 28px; }
    .section-head h2 { margin: 0; font-size: clamp(27px,3vw,38px); line-height: 1.2; }
    .section-head p { max-width: 550px; margin: 0; color: var(--muted); }
    .kicker { margin: 0 0 8px; color: var(--purple-dark); font-size: 12px; font-weight: 800; }
    .intro-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
    .intro-layout h2 { margin: 0 0 14px; font-size: 33px; line-height: 1.25; }
    .intro-layout p { margin: 0 0 14px; color: var(--muted); }
    .capability-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; border-top: 1px solid var(--line); }
    .capability-list div { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .capability-list strong { display: block; font-size: 14px; }
    .capability-list span { color: var(--muted); font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; }
    .service-item { padding: 20px; border: 1px solid var(--line); background: #fff; transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease; }
    .service-item:hover { transform: translateY(-3px); border-color: #bda7ed; box-shadow: 0 10px 24px rgba(54,36,90,.07); }
    .service-item h3 { margin: 0 0 7px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-item .service-mark { display: block; margin-bottom: 14px; color: var(--purple); font-size: 12px; font-weight: 800; }
    .workflow { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 0; border-top: 1px solid #d9d1e7; border-bottom: 1px solid #d9d1e7; }
    .step { position: relative; padding: 24px 20px 26px 0; }
    .step + .step { padding-left: 20px; border-left: 1px solid #d9d1e7; }
    .step-number { color: var(--purple); font-size: 12px; font-weight: 800; }
    .step h3 { margin: 8px 0 5px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-row { display: flex; flex-wrap: wrap; gap: 9px; }
    .industry-row span { padding: 8px 12px; border: 1px solid #d8cfee; background: #fff; color: #463c59; font-size: 13px; }
    .network { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 21px; }
    .network span { padding: 7px 10px; border-left: 2px solid var(--pink); background: #f7f3fc; color: #514b5d; font-size: 12px; }
    .review-band { display: grid; grid-template-columns: minmax(220px,.78fr) minmax(0,2.22fr); gap: 30px; align-items: start; }
    .review-score { padding: 24px; color: #fff; background: #302444; }
    .review-score .score { display: block; margin: 10px 0 0; color: var(--lime); font-size: 48px; font-weight: 800; line-height: 1; }
    .review-score p { margin: 10px 0 0; color: #e3dced; font-size: 13px; }
    .stars { color: #ffd86b; letter-spacing: 0; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 630px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); font-size: 13px; vertical-align: top; }
    th { color: #51465f; background: #f2eef9; font-weight: 800; }
    td:first-child { font-weight: 700; }
    tbody tr:last-child td { border-bottom: 0; }
    .good { color: #17776f; font-weight: 700; }
    .case-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
    .case-card { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .media-frame { overflow: hidden; aspect-ratio: 16 / 9; background: #eeeaf4; }
    .media-frame img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
    .case-card:hover img { transform: scale(1.035); }
    .case-copy { padding: 16px; }
    .case-copy h3 { margin: 0 0 5px; font-size: 16px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .quote-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; }
    .quote { margin: 0; padding: 18px; border-top: 2px solid var(--purple); background: #fff; }
    .quote p { margin: 0 0 15px; color: #494353; font-size: 14px; }
    .quote cite { color: var(--muted); font-size: 12px; font-style: normal; }
    .token-layout { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 30px; }
    .token-layout h2 { margin: 0 0 12px; font-size: 32px; }
    .token-layout p { margin: 0; color: var(--muted); }
    .token-note { padding: 19px 21px; border-left: 3px solid var(--pink); background: #fff; }
    .token-note strong { display: block; margin-bottom: 5px; }
    .token-note span { color: var(--muted); font-size: 13px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .tag-cloud span { padding: 6px 9px; border: 1px solid #dfd8eb; color: #61596d; background: #fff; font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 17px 2px; cursor: pointer; font-size: 15px; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: var(--purple); font-size: 21px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: -3px 0 18px; color: var(--muted); font-size: 14px; }
    .article-links { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 10px; }
    .article-link { min-height: 82px; display: flex; align-items: end; padding: 14px; border: 1px solid var(--line); background: #fff; color: var(--purple-dark); font-size: 13px; font-weight: 700; transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { transform: translateY(-2px); border-color: var(--purple); }
    .contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .contact-copy h2 { margin: 0 0 12px; font-size: 32px; }
    .contact-copy p { color: var(--muted); }
    .contact-line { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .contact-line strong { display: inline-block; min-width: 92px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid #dcd6e6; border-radius: 3px; outline: none; color: var(--ink); background: #fff; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--purple); box-shadow: 0 0 0 3px rgba(108,62,232,.1); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-foot { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 16px; }
    .form-foot small { color: var(--muted); }
    .footer { padding: 30px 0 24px; border-top: 1px solid var(--line); color: #413b4b; background: #f0edf5; }
    .footer-top { display: flex; justify-content: space-between; align-items: start; gap: 28px; }
    .footer p { max-width: 520px; margin: 8px 0 0; color: #686173; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: flex-end; }
    .footer-links a { color: #4b4358; font-size: 12px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 18px; margin-top: 22px; padding-top: 14px; border-top: 1px solid #ddd7e6; color: #686173; font-size: 12px; }
    .floating-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .floating-contact a { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid #ddd5ec; background: #fff; color: var(--purple-dark); box-shadow: 0 5px 18px rgba(35,25,50,.12); font-weight: 800; transition: transform .2s ease, background .2s ease; }
    .floating-contact a:hover { transform: translateY(-3px); background: #f1ebff; }
    .floating-contact svg { width: 19px; height: 19px; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 1000px) {
      .nav-shell { gap: 14px; }
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .hero-grid { gap: 32px; }
      .case-grid, .service-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-shell { min-height: 64px; }
      .menu-toggle { display: grid; place-items: center; margin-left: auto; }
      .nav-cta { display: none; }
      .nav-links { position: absolute; top: 64px; left: 0; right: 0; display: none; align-items: stretch; padding: 8px 16px 14px; border-bottom: 1px solid var(--line); background: #fbfaff; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
      .nav-links a { padding: 10px; border-bottom: 1px solid #eeeaf3; font-size: 13px; }
      .hero { padding: 55px 0 36px; }
      .hero-grid, .intro-layout, .review-band, .token-layout, .contact-layout { grid-template-columns: 1fr; }
      .hero-grid { gap: 30px; }
      h1 { font-size: 44px; }
      .hero-copy { font-size: 15px; }
      .metric-strip { grid-template-columns: repeat(2,1fr); row-gap: 14px; margin-top: 34px; }
      .metric { padding-top: 14px; }
      .section { padding: 54px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .workflow { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .step { padding: 18px 12px 18px 0; }
      .step + .step { padding-left: 12px; }
      .step:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid #d9d1e7; }
      .step:nth-child(4) { border-top: 1px solid #d9d1e7; }
      .quote-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .article-links { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .footer-top, .footer-bottom { display: grid; }
      .footer-links { justify-content: flex-start; }
    }
    @media (max-width: 480px) {
      .brand { font-size: 15px; }
      .ai-page-logo { width: 32px; }
      h1 { font-size: 38px; }
      .hero-art { gap: 8px; padding: 10px; }
      .signal-card { min-height: 105px; padding: 12px; }
      .service-grid, .case-grid, .quote-grid { grid-template-columns: 1fr; }
      .capability-list { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr; }
      .step, .step + .step, .step:nth-child(3), .step:nth-child(4) { padding: 16px 0; border: 0; border-top: 1px solid #d9d1e7; }
      .step:first-child { border-top: 0; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .form-foot { align-items: flex-start; flex-direction: column; }
      .floating-contact { right: 10px; bottom: 12px; }
      .floating-contact a { width: 42px; height: 42px; }
    }