:root {
      color-scheme: light;
      --ink: #1e2b25;
      --muted: #647169;
      --green: #247a46;
      --green-dark: #145b36;
      --lime: #b5e64d;
      --paper: #f6f9f4;
      --white: #fff;
      --line: #dfe8dc;
      --soft: #edf4e9;
      --coral: #d96f4c;
      --shadow: 0 14px 40px rgba(26, 57, 36, .09);
      --content: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 82px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: "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(--content), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(250, 252, 248, .94);
      border-bottom: 1px solid rgba(31, 71, 43, .1);
      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: 10px; text-decoration: none; flex: 0 0 auto; }
    .brand img { display: block; width: 42px; height: auto; max-height: 42px; object-fit: contain; }
    .brand-name { font-size: 17px; font-weight: 800; }
    .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 9px; color: #3c4b40; text-decoration: none; font-size: 13px; white-space: nowrap; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--green); }
    .nav-cta, .button {
      display: inline-flex; justify-content: center; align-items: center; gap: 8px;
      padding: 12px 18px; border: 1px solid var(--green); border-radius: 5px;
      background: var(--green); color: white; text-decoration: none; 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; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 20px rgba(27, 100, 57, .2); }
    .button.secondary { background: transparent; color: var(--green-dark); }
    .button.secondary:hover { background: var(--soft); box-shadow: none; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 5px; background: white; color: var(--ink); }
    .menu-toggle svg { width: 20px; height: 20px; }
    .hero {
      position: relative; overflow: hidden; isolation: isolate;
      background: #e9f3df;
      border-bottom: 1px solid #d8e8cf;
    }
    .hero::before {
      position: absolute; z-index: -1; content: ""; inset: 0 0 0 54%;
      background: linear-gradient(135deg, #d9f0a1, #a9d95b 55%, #84bf4f);
      clip-path: polygon(18% 0,100% 0,100% 100%,0 100%);
    }
    .hero::after {
      position: absolute; z-index: -1; content: ""; width: 440px; height: 440px;
      right: 5%; top: 50%; border: 1px solid rgba(36, 122, 70, .22);
      border-radius: 50%; transform: translateY(-50%);
      box-shadow: 0 0 0 36px rgba(255,255,255,.12), 0 0 0 84px rgba(255,255,255,.11);
    }
    .hero-inner { min-height: 500px; display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 32px; padding-block: 70px; }
    .hero-copy { max-width: 610px; }
    .eyebrow { color: var(--green-dark); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    h1 { margin: 15px 0 18px; max-width: 580px; font-size: clamp(38px, 5vw, 64px); line-height: 1.13; }
    .hero-copy p { max-width: 560px; color: #44564a; font-size: 17px; margin: 0 0 27px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 27px; }
    .hero-tags span { color: #34523b; font-size: 12px; border-bottom: 1px solid rgba(36,122,70,.35); padding: 2px 0; }
    .hero-visual { position: relative; display: grid; place-items: center; min-height: 320px; }
    .orbit { width: min(320px, 80vw); aspect-ratio: 1; border: 1px solid rgba(29, 93, 49, .38); border-radius: 50%; display: grid; place-items: center; animation: orbit 24s linear infinite; }
    .orbit-inner { width: 72%; aspect-ratio: 1; border: 1px dashed rgba(29, 93, 49, .4); border-radius: 50%; display: grid; place-items: center; }
    .core-node { width: 120px; aspect-ratio: 1; display: grid; place-items: center; text-align: center; border-radius: 50%; background: var(--green); color: white; box-shadow: 0 12px 36px rgba(24, 88, 46, .25); font-weight: 800; animation: counter 24s linear infinite; }
    .orbit-node { position: absolute; display: grid; place-items: center; min-width: 82px; padding: 9px 12px; border: 1px solid rgba(30, 78, 42, .2); border-radius: 4px; background: rgba(255,255,255,.87); color: #24412b; font-size: 12px; font-weight: 700; box-shadow: 0 8px 24px rgba(30, 78, 42, .08); }
    .node-a { top: 3%; left: 44%; } .node-b { right: 1%; top: 42%; } .node-c { left: 8%; top: 57%; } .node-d { right: 22%; bottom: 2%; }
    @keyframes orbit { to { transform: rotate(360deg); } }
    @keyframes counter { to { transform: rotate(-360deg); } }
    .metrics { position: relative; z-index: 2; margin-top: -28px; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: white; box-shadow: var(--shadow); }
    .metric { padding: 22px 24px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--green-dark); font-size: 22px; }
    .metric span { color: var(--muted); font-size: 12px; }
    main { overflow: hidden; }
    .section { padding: 84px 0; }
    .section-tint { background: #edf4e9; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 32px; }
    .section-head > div { max-width: 720px; }
    .kicker { margin: 0 0 8px; color: var(--green); font-size: 12px; font-weight: 800; }
    h2 { margin: 0; font-size: clamp(27px, 3.6vw, 40px); line-height: 1.2; }
    .section-head p { max-width: 580px; margin: 12px 0 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .intro-copy { color: #4e5c52; max-width: 600px; }
    .intro-copy p { margin: 0 0 17px; }
    .intro-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; margin-top: 22px; }
    .intro-list div { padding: 12px 0; border-bottom: 1px solid var(--line); color: #384c3d; font-weight: 650; font-size: 14px; }
    .platform-note { padding: 28px; background: var(--green-dark); color: white; border-radius: 3px; }
    .platform-note h3 { margin: 0 0 12px; font-size: 20px; }
    .platform-note p { margin: 0; color: #e0efdf; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 164px; padding: 21px; border: 1px solid var(--line); background: white; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
    .service-item:hover { transform: translateY(-4px); border-color: #a6c88f; box-shadow: var(--shadow); }
    .service-item .num { color: #6f9956; font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 9px 0 7px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .more-services { margin-top: 22px; padding: 22px 24px; background: #e2edd9; border-left: 3px solid var(--green); }
    .more-services strong { display: block; margin-bottom: 9px; }
    .more-services p { margin: 0; color: #536250; font-size: 14px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
    .workflow article { position: relative; padding: 6px 23px 10px 0; border-top: 2px solid #b5d39f; }
    .workflow article::before { counter-increment: step; content: "0" counter(step); display: inline-block; margin-top: 14px; color: var(--green); font-weight: 800; font-size: 13px; }
    .workflow h3 { margin: 7px 0; font-size: 17px; }
    .workflow p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #d7e3d1; border: 1px solid #d7e3d1; }
    .industry-grid div { padding: 22px; background: #f7faf4; }
    .industry-grid strong { display: block; margin-bottom: 6px; }
    .industry-grid span { color: var(--muted); font-size: 13px; }
    .network-row { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: center; }
    .network-copy p { color: var(--muted); }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span { padding: 8px 12px; border: 1px solid #d7e4d2; background: #fff; color: #405448; font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .case { display: grid; grid-template-columns: 1fr 190px; align-items: center; gap: 20px; padding: 18px; border: 1px solid var(--line); background: #fff; }
    .case h3 { margin: 0 0 8px; font-size: 18px; }
    .case p { color: var(--muted); font-size: 13px; margin: 0; }
    .image-frame { overflow: hidden; background: #eaf0e7; aspect-ratio: 4 / 3; }
    .image-frame img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-square { width: 150px; justify-self: end; aspect-ratio: 1; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 21px; background: white; border-top: 2px solid #9bc66f; }
    .review p { margin: 0 0 17px; color: #405046; font-size: 14px; }
    .review strong { font-size: 13px; }
    .review span { display: block; margin-top: 3px; color: var(--muted); font-size: 12px; }
    .score-layout { display: grid; grid-template-columns: .68fr 1.32fr; gap: 26px; align-items: stretch; }
    .score-panel { padding: 28px; background: var(--green-dark); color: white; }
    .score-panel .stars { color: var(--lime); font-size: 20px; letter-spacing: 0; }
    .score-panel strong { display: block; margin: 12px 0 2px; font-size: 44px; line-height: 1.1; }
    .score-panel p { margin: 8px 0 0; color: #e1ecde; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; border-collapse: collapse; min-width: 560px; }
    th, td { padding: 13px 15px; text-align: left; border-bottom: 1px solid var(--line); font-size: 13px; }
    th { background: #eaf2e5; color: #334a38; }
    tr:last-child td { border-bottom: 0; }
    td:last-child { color: var(--green-dark); font-weight: 700; }
    .comparison-note { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
    .token-band { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 28px 30px; background: #e3efdc; border-left: 4px solid var(--green); }
    .token-band h3 { margin: 0 0 6px; font-size: 20px; }
    .token-band p { margin: 0; color: #536250; }
    .match-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: start; }
    .match-copy p { color: var(--muted); }
    .match-points { margin: 20px 0 0; padding: 0; list-style: none; }
    .match-points li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .match-points li::before { content: "✓"; color: var(--green); font-weight: 800; margin-right: 10px; }
    .form-panel { padding: 25px; background: white; border: 1px solid var(--line); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #ccd8ca; border-radius: 3px; padding: 11px 12px; background: #fbfcfa; color: var(--ink); outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(36,122,70,.1); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-submit { margin-top: 16px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 40px 17px 2px; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 8px; top: 12px; color: var(--green); font-size: 23px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { margin: -2px 38px 17px 2px; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-link { display: flex; min-height: 110px; flex-direction: column; justify-content: space-between; padding: 17px; text-decoration: none; background: white; border: 1px solid var(--line); transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { border-color: #91b876; transform: translateY(-3px); }
    .article-link strong { font-size: 14px; }
    .article-link span { color: var(--green); font-size: 12px; }
    .article-link .external { overflow-wrap: anywhere; color: var(--muted); font-size: 11px; }
    .join-band { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 30px; background: #dff0cf; }
    .join-band h3 { margin: 0 0 7px; font-size: 21px; }
    .join-band p { margin: 0; color: #52624e; }
    .contact-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: start; }
    .contact-details { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; margin-top: 23px; }
    .contact-details div { padding: 13px 0; border-bottom: 1px solid var(--line); }
    .contact-details span { display: block; color: var(--muted); font-size: 12px; }
    .contact-details strong, .contact-details a { color: var(--ink); text-decoration: none; font-size: 14px; }
    .qr-panel { display: flex; gap: 20px; align-items: center; padding: 18px; background: white; border: 1px solid var(--line); }
    .qr-panel img { width: 116px; height: 116px; object-fit: contain; }
    .qr-panel strong { display: block; }
    .qr-panel p { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
    .site-footer { background: #e7eee3; color: #26372b; border-top: 1px solid #d4dfd0; }
    .footer-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; padding: 26px 0 20px; }
    .footer-title { margin: 0 0 10px; font-size: 14px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 7px 15px; }
    .footer-links a { color: #405544; text-decoration: none; font-size: 12px; }
    .footer-links a:hover { color: var(--green); text-decoration: underline; }
    .copyright { padding: 12px 0 18px; border-top: 1px solid #d4dfd0; color: #5a685d; font-size: 12px; }
    .floating-contact, .top-button { position: fixed; z-index: 15; right: 18px; display: grid; place-items: center; border: 0; box-shadow: 0 6px 20px rgba(26,57,36,.18); }
    .floating-contact { bottom: 78px; width: 48px; height: 48px; border-radius: 50%; background: var(--green); color: white; text-decoration: none; font-size: 19px; }
    .top-button { bottom: 20px; width: 42px; height: 42px; border-radius: 50%; background: white; color: var(--green-dark); cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(8px); transition: .2s ease; }
    .top-button.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
    .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.in-view { opacity: 1; transform: translateY(0); }
    @media (max-width: 1020px) {
      .nav-links a { padding-inline: 6px; font-size: 12px; }
      .nav-cta { display: none; }
      .hero::before { left: 47%; }
      .case { grid-template-columns: 1fr 150px; }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--content), calc(100% - 32px)); }
      .nav-row { min-height: 64px; }
      .menu-toggle { display: grid; place-items: center; margin-left: auto; }
      .nav-links { display: none; position: absolute; top: 63px; left: 0; right: 0; flex-direction: column; align-items: stretch; padding: 9px 16px 15px; border-bottom: 1px solid var(--line); background: #fbfcf9; box-shadow: 0 12px 18px rgba(24,54,34,.08); }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 10px 8px; font-size: 14px; }
      .hero::before { inset: 45% 0 0; clip-path: polygon(0 13%,100% 0,100% 100%,0 100%); }
      .hero::after { width: 300px; height: 300px; top: 71%; right: 10%; }
      .hero-inner { min-height: auto; grid-template-columns: 1fr; gap: 5px; padding-block: 52px 25px; }
      .hero-copy p { font-size: 15px; }
      .hero-visual { min-height: 290px; }
      .metric-strip { grid-template-columns: 1fr 1fr; }
      .metric { border-bottom: 1px solid var(--line); padding: 17px; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(n+3) { border-bottom: 0; }
      .section { padding: 62px 0; }
      .section-head { align-items: start; flex-direction: column; margin-bottom: 24px; }
      .intro-grid, .network-row, .score-layout, .match-grid, .contact-layout { grid-template-columns: 1fr; gap: 25px; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .industry-grid { grid-template-columns: 1fr 1fr; }
      .workflow { grid-template-columns: 1fr 1fr; gap: 18px; }
      .case-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .token-band, .join-band { grid-template-columns: 1fr; }
      .footer-inner { grid-template-columns: 1fr; }
      .case { grid-template-columns: 1fr 140px; }
    }
    @media (max-width: 460px) {
      .brand img { width: 36px; }
      .brand-name { font-size: 15px; }
      h1 { font-size: 38px; }
      .hero-actions .button { flex: 1 1 150px; }
      .service-grid, .review-grid { grid-template-columns: 1fr; }
      .service-item { min-height: 0; }
      .case { grid-template-columns: 1fr; }
      .case-square { justify-self: start; }
      .form-grid, .contact-details { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .article-list { grid-template-columns: 1fr; }
      .qr-panel { align-items: flex-start; }
      .qr-panel img { width: 96px; height: 96px; }
      .metric strong { font-size: 20px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }