:root {
      color-scheme: light;
      --ink: #202626;
      --muted: #606a68;
      --paper: #f8f9f5;
      --white: #fff;
      --line: #dfe5df;
      --green: #087b5a;
      --green-dark: #07563f;
      --lime: #d7f45b;
      --coral: #ef684f;
      --blue: #dcecf0;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(248,249,245,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { display: block; width: 40px; max-height: 40px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 10px 9px; text-decoration: none; color: #48514e; font-size: 13px; }
    .nav-links a:hover { color: var(--green); }
    .nav-actions { display: flex; align-items: center; gap: 10px; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 7px; background: var(--white); color: var(--ink); cursor: pointer; }
    .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 46px; padding: 10px 18px; border: 1px solid transparent; border-radius: 6px;
      background: var(--green); color: #fff; text-decoration: none; font-weight: 700;
      cursor: pointer; transition: transform .2s, background .2s, box-shadow .2s;
    }
    .button:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 18px rgba(7,86,63,.16); }
    .button.secondary { border-color: #9db5aa; background: transparent; color: var(--green-dark); }
    .button.secondary:hover { background: #edf4ee; }
    .hero {
      overflow: hidden;
      position: relative;
      padding: 78px 0 52px;
      background:
        linear-gradient(118deg, transparent 62%, rgba(215,244,91,.34) 62%, rgba(215,244,91,.34) 72%, transparent 72%),
        linear-gradient(145deg, #eef5e8 0%, #f8f9f5 56%, #e3f0ef 100%);
      border-bottom: 1px solid var(--line);
    }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 44px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: 0; }
    .eyebrow::before { content: ""; width: 24px; height: 3px; background: var(--coral); }
    h1 { max-width: 680px; margin: 18px 0 18px; font-size: clamp(38px, 6vw, 68px); line-height: 1.08; letter-spacing: 0; }
    .hero-copy { max-width: 620px; margin: 0; color: #4e5a56; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin-top: 18px; color: #52605b; font-size: 13px; }
    .hero-visual { position: relative; padding: 24px; border: 1px solid #bfd1c4; background: rgba(255,255,255,.72); box-shadow: 12px 12px 0 var(--lime); }
    .visual-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 750; }
    .live-mark { display: inline-flex; align-items: center; gap: 7px; color: var(--green-dark); }
    .live-mark::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--coral); }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; padding: 20px 0 16px; }
    .model-cloud span, .tag { display: inline-block; padding: 5px 9px; border: 1px solid #d3dfd5; border-radius: 4px; background: #f7faf5; color: #43534c; font-size: 12px; }
    .visual-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .visual-stat { padding: 12px; background: #eef5e8; }
    .visual-stat strong { display: block; color: var(--green-dark); font-size: 18px; }
    .visual-stat span { color: var(--muted); font-size: 12px; }
    .hero-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 56px; border-top: 1px solid #cdd8cd; }
    .strip-item { padding: 18px 16px 0 0; color: #52605b; font-size: 13px; }
    .strip-item strong { display: block; color: var(--ink); font-size: 15px; }
    main section { padding: 76px 0; }
    .section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
    .section-heading h2 { max-width: 710px; margin: 8px 0 0; font-size: clamp(27px, 4vw, 40px); line-height: 1.2; }
    .section-heading p { max-width: 450px; margin: 0; color: var(--muted); }
    .section-kicker { color: var(--green); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    .intro-band { background: #e9f1e8; border-block: 1px solid #d7e3d5; }
    .intro-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: start; }
    .intro-grid h2 { margin: 8px 0 16px; font-size: 36px; line-height: 1.2; }
    .intro-grid p { color: #4d5a54; }
    .capability-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; margin: 0; padding: 0; list-style: none; }
    .capability-list li { padding: 13px 0; border-bottom: 1px solid #cbd9ca; }
    .capability-list strong { display: block; font-size: 15px; }
    .capability-list span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 168px; padding: 21px; border: 1px solid var(--line); background: var(--white); transition: transform .2s, border-color .2s; }
    .service-item:hover { transform: translateY(-4px); border-color: #90b6a1; }
    .service-item .index { color: var(--coral); font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 10px 0 7px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .wide-band { background: #202e2b; color: #f7faf5; }
    .wide-band .section-kicker { color: var(--lime); }
    .wide-band .section-heading p { color: #c1cfca; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid #53635d; }
    .workflow article { padding: 22px 20px 8px 0; }
    .workflow .step { color: var(--lime); font-size: 13px; font-weight: 800; }
    .workflow h3 { margin: 10px 0 6px; font-size: 19px; }
    .workflow p { margin: 0; color: #c1cfca; font-size: 14px; }
    .scenario-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 38px; }
    .scenario { display: grid; grid-template-columns: 145px 1fr; gap: 18px; padding: 19px 0; border-bottom: 1px solid var(--line); }
    .scenario strong { color: var(--green-dark); }
    .scenario span { color: var(--muted); font-size: 14px; }
    .network-band { background: #e5eff1; border-block: 1px solid #d2e1e3; }
    .network-content { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; }
    .network-content h2 { margin: 8px 0 12px; font-size: 34px; line-height: 1.2; }
    .network-content p { color: #4d5a5b; }
    .network-tags { display: flex; flex-wrap: wrap; gap: 9px; }
    .network-tags span { padding: 8px 12px; border: 1px solid #b7ced0; background: rgba(255,255,255,.65); color: #263b3a; font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
    .case-card { overflow: hidden; border: 1px solid var(--line); background: var(--white); }
    .case-card img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
    .case-card.square img { aspect-ratio: 1; object-fit: contain; background: #f2f5ef; }
    .case-copy { padding: 17px; }
    .case-copy h3 { margin: 0 0 6px; font-size: 17px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 19px; border-top: 3px solid var(--coral); background: #fff; }
    .review blockquote { margin: 0 0 14px; color: #3f4b47; font-size: 14px; }
    .review cite { color: var(--green-dark); font-size: 13px; font-style: normal; font-weight: 750; }
    .comparison { overflow-x: auto; border: 1px solid var(--line); background: var(--white); }
    table { width: 100%; min-width: 760px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #edf3e9; color: #30443b; font-size: 13px; }
    td { color: #4d5854; font-size: 14px; }
    td:first-child { color: var(--ink); font-weight: 700; }
    .rating { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; padding: 18px 20px; background: var(--green-dark); color: #fff; }
    .rating strong { color: var(--lime); font-size: 30px; line-height: 1; }
    .rating span { font-size: 14px; }
    .rating .stars { margin-left: auto; color: var(--lime); letter-spacing: 2px; }
    .token-band { background: #fff5e8; border-block: 1px solid #f2dfc4; }
    .token-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: center; }
    .token-grid h2 { margin: 8px 0 12px; font-size: 34px; line-height: 1.2; }
    .token-grid p { color: #5b554b; }
    .token-note { padding: 20px; border-left: 4px solid var(--coral); background: #fff; color: #514b43; }
    .token-note strong { display: block; margin-bottom: 6px; }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-link { display: flex; min-height: 118px; flex-direction: column; justify-content: space-between; padding: 15px; border: 1px solid var(--line); background: #fff; text-decoration: none; }
    .article-link:hover { border-color: var(--green); }
    .article-link span { color: var(--muted); font-size: 12px; }
    .article-link strong { font-size: 15px; line-height: 1.4; }
    .article-link em { color: var(--green); font-size: 12px; font-style: normal; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 5px; top: 14px; color: var(--green); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 820px; margin: -3px 0 18px; color: var(--muted); }
    .form-band { background: #e9f1e8; border-top: 1px solid #d7e3d5; }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 46px; align-items: start; }
    .contact-grid h2 { margin: 8px 0 14px; font-size: 36px; line-height: 1.2; }
    .contact-details { margin-top: 22px; color: #4d5a54; font-size: 14px; }
    .contact-details p { margin: 8px 0; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; padding: 22px; border: 1px solid #cddbcf; background: #fff; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #3f4c46; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 44px; padding: 10px 11px; border: 1px solid #cbd5ce; border-radius: 3px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .contact-form .button { grid-column: 1 / -1; justify-self: start; }
    .footer { padding: 26px 0; background: #202e2b; color: #ecf3ee; }
    .footer-top { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding-bottom: 17px; border-bottom: 1px solid #43534d; }
    .footer a { color: #d7f45b; text-decoration: none; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 17px; font-size: 13px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 15px; padding-top: 15px; color: #c1cfca; font-size: 12px; }
    .floating { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .floating a { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 8px 13px; border: 1px solid var(--green-dark); background: var(--green-dark); color: #fff; text-decoration: none; font-size: 13px; box-shadow: 0 5px 15px rgba(25,48,38,.16); }
    .floating a:last-child { background: var(--lime); color: #243220; border-color: var(--lime); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @media (max-width: 980px) {
      .nav-links { display: none; position: absolute; top: 71px; left: 0; right: 0; padding: 12px 20px 18px; background: var(--paper); border-bottom: 1px solid var(--line); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 9px 4px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-actions .button { display: none; }
      .hero-grid { gap: 30px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .articles { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav-row { min-height: 64px; }
      .nav-links { top: 63px; }
      .nav-links.open { grid-template-columns: repeat(2, 1fr); }
      .hero { padding: 53px 0 34px; }
      .hero-grid, .intro-grid, .network-content, .token-grid, .contact-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 30px; }
      .hero-visual { max-width: 520px; }
      .hero-strip { grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
      main section { padding: 54px 0; }
      .section-heading { display: block; }
      .section-heading p { margin-top: 12px; }
      .intro-grid { gap: 18px; }
      .capability-list { grid-template-columns: 1fr; }
      .service-grid, .scenario-grid, .review-grid, .case-grid { grid-template-columns: 1fr; }
      .service-item { min-height: 0; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .workflow article { padding-right: 14px; }
      .scenario { grid-template-columns: 112px 1fr; gap: 12px; }
      .network-content { gap: 20px; }
      .articles { grid-template-columns: 1fr 1fr; }
      .contact-form { grid-template-columns: 1fr; padding: 16px; }
      .field.full, .contact-form .button { grid-column: auto; }
      .footer-top, .footer-bottom { align-items: flex-start; flex-direction: column; }
      .rating { flex-wrap: wrap; }
      .rating .stars { margin-left: 0; }
      .floating { right: 10px; bottom: 10px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }