:root {
      color-scheme: light;
      --ink: #172326;
      --muted: #59686a;
      --paper: #f8f8f5;
      --white: #fff;
      --line: #dce4df;
      --green: #caff55;
      --green-deep: #23634e;
      --coral: #ff715f;
      --blue: #d9efff;
      --yellow: #ffd65c;
      --max: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 82px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    .container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(248,248,245,.94);
      border-bottom: 1px solid rgba(23,35,38,.1);
      backdrop-filter: blur(14px);
    }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .ai-page-logo { display: block; width: 38px; max-width: 100%; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; list-style: none; margin: 0; padding: 0; }
    .nav-links a { display: block; padding: 10px 11px; text-decoration: none; color: #3b494b; font-size: 13px; }
    .nav-links a:hover { color: var(--green-deep); }
    .nav-actions { display: flex; align-items: center; gap: 10px; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); color: var(--ink); padding: 8px 12px; border-radius: 6px; cursor: pointer; }
    .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 46px; padding: 10px 18px; border: 1px solid var(--ink);
      border-radius: 5px; background: var(--ink); color: #fff; text-decoration: none;
      font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(23,35,38,.15); }
    .button-bright { background: var(--green); border-color: var(--green); color: var(--ink); }
    .button-outline { background: transparent; color: var(--ink); }
    .hero {
      position: relative; overflow: hidden; background: var(--green);
      border-bottom: 1px solid rgba(23,35,38,.13);
    }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; }
    .hero::before { width: 340px; height: 340px; right: -120px; top: -190px; border: 1px solid rgba(23,35,38,.2); border-radius: 50%; box-shadow: 0 0 0 38px rgba(23,35,38,.035), 0 0 0 78px rgba(23,35,38,.025); }
    .hero::after { width: 8px; height: 8px; top: 25%; right: 18%; background: var(--coral); box-shadow: 0 0 0 9px rgba(255,113,95,.18); }
    .hero-inner { position: relative; z-index: 1; padding-block: 76px 52px; }
    .hero-copy { max-width: 790px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 22px; height: 3px; background: var(--coral); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 700px; margin-bottom: 18px; font-size: clamp(38px, 6vw, 68px); line-height: 1.07; letter-spacing: 0; }
    .hero-lead { max-width: 680px; margin-bottom: 25px; color: #293b35; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 11px; }
    .hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 62px; border-top: 1px solid rgba(23,35,38,.24); }
    .hero-stat { padding: 18px 16px 0 0; }
    .hero-stat strong { display: block; font-size: 20px; }
    .hero-stat span { display: block; margin-top: 3px; color: #42534d; font-size: 12px; }
    .section { padding-block: 76px; border-bottom: 1px solid rgba(23,35,38,.09); }
    .section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-heading > div { max-width: 720px; }
    .section-kicker { margin-bottom: 9px; color: var(--green-deep); font-size: 12px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; }
    h2 { margin-bottom: 10px; font-size: clamp(28px, 4vw, 42px); line-height: 1.18; letter-spacing: 0; }
    .section-intro { max-width: 710px; margin-bottom: 0; color: var(--muted); }
    .text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: 4px; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
    .intro-copy { max-width: 550px; }
    .intro-copy p { color: var(--muted); }
    .highlight-line { padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 18px; font-weight: 750; }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; margin: 0; padding: 0; list-style: none; }
    .capability-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .capability-list strong { display: block; margin-bottom: 3px; }
    .capability-list span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; }
    .service-item { min-height: 160px; padding: 20px; border-top: 3px solid var(--green-deep); background: var(--white); transition: transform .2s ease, box-shadow .2s ease; }
    .service-item:nth-child(4n+2) { border-color: var(--coral); }
    .service-item:nth-child(4n+3) { border-color: #4293bd; }
    .service-item:nth-child(4n+4) { border-color: #e1b629; }
    .service-item:hover { transform: translateY(-4px); box-shadow: 0 12px 25px rgba(23,35,38,.08); }
    .service-item h3 { margin-bottom: 7px; font-size: 17px; }
    .service-item p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .service-note { margin: 20px 0 0; color: var(--muted); font-size: 13px; }
    .band { background: #e9f3ed; }
    .workflows { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid #bdcec4; border-left: 1px solid #bdcec4; }
    .workflow { padding: 22px; border-right: 1px solid #bdcec4; border-bottom: 1px solid #bdcec4; }
    .workflow h3 { margin-bottom: 8px; font-size: 17px; }
    .workflow p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .workflow-label { display: inline-block; margin-bottom: 18px; color: var(--green-deep); font-size: 12px; font-weight: 800; }
    .industry-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-list span { padding: 8px 11px; border: 1px solid #cbd7d2; background: rgba(255,255,255,.65); color: #344749; font-size: 13px; }
    .network-strip { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
    .network-strip span { padding: 9px 13px; background: var(--ink); color: #fff; font-size: 13px; }
    .steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; counter-reset: step; }
    .step { position: relative; padding-top: 20px; border-top: 2px solid var(--ink); counter-increment: step; }
    .step::before { content: "0" counter(step); display: block; margin-bottom: 12px; color: var(--coral); font-size: 13px; font-weight: 900; }
    .step h3 { margin-bottom: 7px; font-size: 17px; }
    .step p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .case { display: grid; grid-template-columns: 1fr 1fr; gap: 0; align-items: center; background: var(--white); border: 1px solid var(--line); }
    .case-copy { padding: 24px; }
    .case-copy h3 { margin-bottom: 8px; font-size: 20px; }
    .case-copy p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .media-frame { padding: 12px; background: #eef1ed; }
    .ai-page-image { display: block; width: 100%; max-width: 100%; height: auto; object-fit: contain; }
    .case-square { grid-template-columns: 1fr .8fr; }
    .case-square .media-frame { max-width: 220px; justify-self: center; width: 100%; }
    .evaluation { display: grid; grid-template-columns: .72fr 1.28fr; gap: 30px; align-items: start; }
    .score-panel { padding: 26px; background: var(--coral); }
    .score-panel .section-kicker { color: #522820; }
    .score-number { display: block; font-size: 62px; line-height: 1; font-weight: 850; }
    .stars { margin: 10px 0; color: #172326; font-size: 23px; letter-spacing: 2px; }
    .score-panel p { margin-bottom: 0; color: #3b332f; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--white); }
    table { width: 100%; min-width: 620px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #edf3ef; font-size: 13px; }
    td { font-size: 13px; }
    tbody tr:last-child td { border-bottom: 0; }
    .positive { color: #206349; font-weight: 700; }
    .quotes { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
    .quote { padding: 21px; border-left: 3px solid var(--green-deep); background: var(--white); }
    .quote p { margin-bottom: 18px; color: #394749; font-size: 14px; }
    .quote strong { display: block; font-size: 13px; }
    .quote span { color: var(--muted); font-size: 12px; }
    .token-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
    .token-callout { padding: 24px; background: var(--blue); border-left: 4px solid #3888b7; }
    .token-callout h3 { margin-bottom: 8px; }
    .token-callout p { margin-bottom: 0; color: #34494f; font-size: 14px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 5px; top: 13px; font-size: 23px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { max-width: 800px; margin: 0; padding: 0 30px 18px 0; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; }
    .article-link { min-height: 118px; display: flex; flex-direction: column; justify-content: space-between; padding: 17px; background: var(--white); border: 1px solid var(--line); text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { border-color: var(--green-deep); transform: translateY(-3px); }
    .article-link strong { font-size: 15px; }
    .article-link span { color: var(--green-deep); font-size: 12px; font-weight: 700; }
    .contact-section { background: var(--yellow); }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .contact-info p { color: #414536; }
    .contact-details { display: grid; gap: 9px; margin-top: 20px; }
    .contact-details a { font-weight: 700; text-underline-offset: 3px; }
    .qr-wrap { width: 148px; margin-top: 20px; padding: 8px; background: #fff; }
    .qr-wrap img { display: block; width: 100%; height: auto; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
    .field { display: grid; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 45px; padding: 10px 12px; border: 1px solid #a9aa92; border-radius: 3px; background: #fffef8; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-status { min-height: 24px; margin: 10px 0 0; color: #283a2f; font-size: 13px; }
    .site-footer { background: #172326; color: #f5f6f2; padding: 38px 0 22px; }
    .footer-top { display: grid; grid-template-columns: 1fr 1.2fr; gap: 32px; padding-bottom: 26px; }
    .footer-brand { font-size: 20px; font-weight: 800; }
    .footer-copy { max-width: 480px; margin: 8px 0 0; color: #c8d0cc; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; align-content: start; gap: 10px 18px; }
    .footer-links a { color: #e7eee9; font-size: 13px; text-underline-offset: 3px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 17px; border-top: 1px solid #405052; color: #c8d0cc; font-size: 12px; }
    .floating-contact { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .floating-contact a { display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid var(--ink); background: var(--green); color: var(--ink); font-weight: 800; text-decoration: none; box-shadow: 0 5px 14px rgba(23,35,38,.15); }
    .reveal { opacity: 0; transform: translateY(12px); 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; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 1000px) {
      .nav-links { display: none; position: absolute; top: 71px; left: 0; right: 0; padding: 10px 20px 16px; background: var(--paper); border-bottom: 1px solid var(--line); flex-wrap: wrap; justify-content: flex-start; }
      .nav-links.is-open { display: flex; }
      .menu-toggle { display: inline-flex; }
      .service-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
      .article-list { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--max), calc(100% - 32px)); }
      .nav-row { min-height: 64px; gap: 8px; }
      .brand { gap: 7px; font-size: 14px; }
      .ai-page-logo { width: 32px; }
      .nav-actions .button { min-height: 40px; padding: 8px 11px; font-size: 13px; }
      .nav-links { top: 63px; padding-inline: 16px; }
      .nav-links a { padding: 9px 10px; }
      .hero-inner { padding-block: 56px 34px; }
      .hero-lead { font-size: 16px; }
      .hero-stats { grid-template-columns: repeat(2,1fr); row-gap: 12px; margin-top: 42px; }
      .section { padding-block: 54px; }
      .section-heading { display: block; }
      .section-heading > .text-link { margin-top: 14px; }
      .intro-grid, .industry-layout, .evaluation, .token-layout, .contact-grid, .footer-top { grid-template-columns: 1fr; gap: 26px; }
      .capability-list { grid-template-columns: 1fr 1fr; gap: 0 14px; }
      .service-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 9px; }
      .service-item { min-height: 0; padding: 15px; }
      .service-item h3 { font-size: 15px; }
      .workflows { grid-template-columns: 1fr 1fr; }
      .workflow { padding: 16px; }
      .steps { grid-template-columns: 1fr 1fr; gap: 24px 16px; }
      .case-grid { grid-template-columns: 1fr; }
      .case-copy { padding: 17px; }
      .quotes { grid-template-columns: 1fr 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .article-link { min-height: 105px; }
      .footer-bottom { flex-direction: column; gap: 6px; }
    }
    @media (max-width: 420px) {
      .nav-actions { gap: 6px; }
      .nav-actions .button { padding-inline: 9px; }
      .brand span { max-width: 85px; overflow: hidden; text-overflow: ellipsis; }
      .hero-actions .button { width: 100%; }
      .capability-list, .workflows, .steps, .quotes, .article-list { grid-template-columns: 1fr; }
      .case { grid-template-columns: 1fr; }
      .case-square { grid-template-columns: 1fr; }
      .case-square .media-frame { max-width: 220px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
    }