:root {
      color-scheme: light;
      --ink: #173332;
      --muted: #5c7471;
      --teal: #087d72;
      --teal-dark: #075b55;
      --mint: #dff3ed;
      --lime: #d8f36a;
      --coral: #e96b55;
      --paper: #f5fbfa;
      --white: #fff;
      --line: #d8e9e5;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    img { max-width: 100%; height: auto; }
    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; }
    .topbar { position: sticky; top: 0; z-index: 20; background: rgba(245,251,250,.95); border-bottom: 1px solid rgba(216,233,229,.9); backdrop-filter: blur(14px); }
    .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; flex: 0 0 auto; font-weight: 800; font-size: 18px; }
    .brand img { width: 42px; height: 42px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 10px 11px; color: #3e5b58; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--teal); }
    .nav-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white); color: var(--ink); cursor: pointer; }
    .button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 0 20px; border: 1px solid transparent; background: var(--teal); color: var(--white); font-weight: 700; font-size: 14px; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 9px 20px rgba(8,125,114,.2); background: var(--teal-dark); }
    .button-outline { border-color: #a9cbc3; background: transparent; color: var(--teal-dark); }
    .button-outline:hover { background: #e9f6f2; box-shadow: none; }
    .button-lime { background: var(--lime); color: #173332; }
    .button-lime:hover { background: #c9e84f; }
    .hero { position: relative; overflow: hidden; padding: 74px 0 58px; background: linear-gradient(115deg, #e7f5f0 0%, #f5fbfa 54%, #edf7e7 100%); border-bottom: 1px solid var(--line); }
    .hero::before { content: ""; position: absolute; width: 370px; aspect-ratio: 1; right: -100px; top: -180px; border: 1px solid rgba(8,125,114,.16); border-radius: 50%; box-shadow: 0 0 0 36px rgba(8,125,114,.035), 0 0 0 74px rgba(8,125,114,.025); }
    .hero-grid { position: relative; display: grid; grid-template-columns: minmax(0,1.2fr) minmax(290px,.8fr); gap: 52px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: 1.4px; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--coral); }
    h1 { max-width: 720px; margin: 17px 0 18px; font-size: clamp(38px, 5vw, 60px); line-height: 1.13; letter-spacing: 0; }
    .hero-copy { max-width: 620px; color: var(--muted); font-size: 17px; }
    .hero-copy strong { color: var(--ink); }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin-top: 16px; color: #59726e; font-size: 12px; }
    .hero-visual { position: relative; min-height: 300px; display: grid; align-content: center; padding: 25px; border: 1px solid #b8d8cf; background: rgba(255,255,255,.62); }
    .hero-visual::after { content: ""; position: absolute; right: 18px; top: 18px; width: 13px; height: 13px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 7px rgba(233,107,85,.12); }
    .visual-heading { margin: 0 0 18px; font-size: 16px; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span { padding: 7px 10px; border: 1px solid #c7e1d9; background: #f6fcfa; color: #315c55; font-size: 12px; }
    .visual-footer { display: flex; justify-content: space-between; gap: 14px; align-items: end; margin-top: 24px; padding-top: 17px; border-top: 1px solid var(--line); }
    .visual-footer strong { display: block; font-size: 22px; }
    .visual-footer small { color: var(--muted); }
    .signal { display: flex; align-items: end; gap: 5px; height: 42px; }
    .signal i { display: block; width: 7px; background: var(--teal); animation: signal 1.4s ease-in-out infinite alternate; }
    .signal i:nth-child(1) { height: 18px; }
    .signal i:nth-child(2) { height: 30px; animation-delay: .15s; }
    .signal i:nth-child(3) { height: 24px; animation-delay: .3s; }
    .signal i:nth-child(4) { height: 39px; animation-delay: .45s; }
    .signal i:nth-child(5) { height: 27px; animation-delay: .6s; }
    @keyframes signal { to { transform: scaleY(.55); transform-origin: bottom; opacity: .55; } }
    .quick-strip { display: grid; grid-template-columns: repeat(4,1fr); border-bottom: 1px solid var(--line); background: #fff; }
    .quick-item { padding: 20px 24px; border-right: 1px solid var(--line); }
    .quick-item:last-child { border-right: 0; }
    .quick-item strong { display: block; font-size: 15px; }
    .quick-item span { color: var(--muted); font-size: 12px; }
    section.content-section { padding: 78px 0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
    .section-head h2 { margin: 7px 0 0; font-size: 32px; line-height: 1.25; }
    .section-head p { max-width: 510px; margin: 0; color: var(--muted); font-size: 14px; }
    .section-kicker { color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: 1.3px; }
    .intro-band { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: start; padding: 36px; border-left: 4px solid var(--teal); background: #e9f5f1; }
    .intro-band h2 { margin: 0; font-size: 29px; }
    .intro-band p { margin: 0 0 13px; color: #4b6964; }
    .intro-band p:last-child { margin-bottom: 0; }
    .cap-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
    .cap-item { min-height: 170px; padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.55); transition: background .2s ease, transform .2s ease; }
    .cap-item:hover { position: relative; z-index: 1; background: #fff; transform: translateY(-3px); }
    .cap-number { color: var(--coral); font-size: 12px; font-weight: 800; }
    .cap-item h3 { margin: 11px 0 7px; font-size: 17px; }
    .cap-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; counter-reset: step; border-block: 1px solid var(--line); }
    .workflow-item { position: relative; padding: 25px 25px 27px 0; counter-increment: step; }
    .workflow-item:not(:last-child)::after { content: ""; position: absolute; left: 42px; right: 14px; top: 43px; height: 1px; background: #b8d8cf; }
    .step-dot { position: relative; z-index: 1; display: grid; width: 38px; aspect-ratio: 1; place-items: center; background: var(--teal); color: #fff; font-size: 13px; font-weight: 800; }
    .step-dot::before { content: counter(step, decimal-leading-zero); }
    .workflow-item h3 { margin: 17px 0 5px; font-size: 16px; }
    .workflow-item p { margin: 0; max-width: 220px; color: var(--muted); font-size: 13px; }
    .industry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
    .industry-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
    .industry-list div { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .industry-list strong { display: block; font-size: 14px; }
    .industry-list span { color: var(--muted); font-size: 12px; }
    .network-panel { padding: 28px; background: var(--teal-dark); color: #fff; }
    .network-panel h3 { margin: 0 0 10px; font-size: 20px; }
    .network-panel p { margin: 0 0 18px; color: #d0e8e2; font-size: 14px; }
    .network-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .network-tags span { padding: 6px 10px; border: 1px solid rgba(255,255,255,.26); color: #fff; font-size: 12px; }
    .network-links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
    .network-links a { color: #e0f3a8; font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }
    .case-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; align-items: start; }
    .case-main, .case-side { overflow: hidden; background: #fff; border: 1px solid var(--line); }
    .case-main img { display: block; width: 100%; aspect-ratio: 16 / 7; object-fit: cover; }
    .case-main .case-copy { padding: 22px 24px 24px; }
    .case-side img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
    .case-side .case-copy { padding: 18px 20px 21px; }
    .case-copy h3 { margin: 0 0 6px; font-size: 18px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .case-caption { display: inline-block; margin-bottom: 8px; color: var(--teal); font-size: 11px; font-weight: 800; letter-spacing: .8px; }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .review { padding: 22px; background: #fff; }
    .review .quote-mark { color: var(--coral); font-size: 24px; line-height: 1; }
    .review p { min-height: 78px; margin: 10px 0 16px; color: #455f5b; font-size: 13px; }
    .review strong { display: block; font-size: 13px; }
    .review small { color: var(--muted); font-size: 11px; }
    .evaluation { display: grid; grid-template-columns: .72fr 1.28fr; gap: 34px; align-items: start; }
    .score-panel { padding: 28px; background: var(--lime); }
    .score-panel .score { display: block; margin-top: 5px; font-size: 56px; font-weight: 850; line-height: 1; }
    .stars { color: #315c29; font-size: 19px; letter-spacing: 2px; }
    .score-panel p { margin: 12px 0 0; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; border-collapse: collapse; min-width: 600px; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid #e5efec; font-size: 13px; vertical-align: top; }
    th { background: #eaf5f1; color: var(--ink); font-size: 12px; }
    td:first-child { width: 28%; font-weight: 700; }
    tr:last-child td { border-bottom: 0; }
    .token-section { background: #eaf5f1; }
    .token-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 38px; align-items: center; }
    .token-layout h2 { margin: 7px 0 12px; font-size: 31px; }
    .token-layout p { margin: 0 0 18px; color: var(--muted); }
    .token-note { padding: 20px 22px; border-left: 3px solid var(--coral); background: #fff; color: #3f5f59; font-size: 13px; }
    .feature-rows { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
    .feature-row { display: flex; justify-content: space-between; gap: 15px; padding: 15px 0; border-bottom: 1px solid #c9dfd8; font-size: 13px; }
    .feature-row span:last-child { color: var(--teal-dark); font-weight: 700; text-align: right; }
    .price-ref { margin-top: 12px; color: #58716c; font-size: 11px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 17px 4px; cursor: pointer; list-style: none; font-size: 15px; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: var(--teal); font-size: 22px; font-weight: 400; transition: transform .2s ease; }
    details[open] summary::after { transform: rotate(45deg); }
    details p { max-width: 850px; margin: -3px 35px 18px 4px; color: var(--muted); font-size: 13px; }
    .article-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .article-link { display: flex; min-height: 112px; flex-direction: column; justify-content: space-between; padding: 19px; border: 1px solid var(--line); background: #fff; transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { transform: translateY(-3px); border-color: #77b7a9; }
    .article-link span { color: var(--muted); font-size: 11px; }
    .article-link strong { font-size: 15px; }
    .article-link em { color: var(--teal); font-size: 12px; font-style: normal; }
    .closing-band { padding: 34px; display: flex; justify-content: space-between; align-items: center; gap: 24px; background: #dff1eb; border-top: 1px solid #c2dfd6; }
    .closing-band h2 { margin: 0 0 5px; font-size: 25px; }
    .closing-band p { margin: 0; color: var(--muted); font-size: 13px; }
    .contact-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 42px; align-items: start; }
    .contact-copy h2 { margin: 6px 0 12px; font-size: 31px; }
    .contact-copy p { color: var(--muted); font-size: 14px; }
    .contact-list { display: grid; gap: 10px; margin-top: 20px; }
    .contact-list div { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--line); font-size: 13px; }
    .contact-list span { color: var(--muted); }
    .contact-list a { color: var(--teal-dark); font-weight: 700; }
    .form-panel { padding: 26px; border: 1px solid var(--line); background: #fff; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { font-size: 12px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #c9ddd8; border-radius: 0; padding: 11px 12px; color: var(--ink); background: #fbfdfc; outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(8,125,114,.1); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-submit { margin-top: 16px; }
    .form-message { min-height: 20px; margin: 9px 0 0; color: var(--teal-dark); font-size: 12px; }
    .footer { padding: 30px 0 22px; background: #e6f1ee; color: #274641; border-top: 1px solid var(--line); }
    .footer-top { display: flex; justify-content: space-between; align-items: start; gap: 28px; }
    .footer-brand { font-weight: 800; font-size: 16px; }
    .footer p { margin: 7px 0 0; color: #58716c; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; max-width: 610px; }
    .footer-links a { color: #315e56; font-size: 12px; }
    .copyright { margin-top: 19px; padding-top: 14px; border-top: 1px solid #cbded8; color: #5c746f; font-size: 11px; }
    .float-tools { position: fixed; z-index: 15; right: 16px; bottom: 20px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { display: grid; width: 46px; aspect-ratio: 1; place-items: center; border: 1px solid #b8d8cf; background: #fff; color: var(--teal-dark); font-size: 11px; font-weight: 800; cursor: pointer; box-shadow: 0 5px 18px rgba(18,70,62,.1); }
    .float-tools button { font-size: 18px; }
    .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: 1020px) {
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-row { gap: 12px; }
      .nav-actions .button { padding-inline: 13px; }
    }
    @media (max-width: 860px) {
      .menu-toggle { display: grid; place-items: center; }
      .nav-row { min-height: 66px; }
      .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; padding: 10px 20px 18px; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--line); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 11px 0; border-bottom: 1px solid #e2eeeb; font-size: 14px; }
      .nav-actions .button { display: none; }
      .hero-grid { grid-template-columns: 1fr; gap: 30px; }
      .hero-visual { max-width: 620px; min-height: 0; }
      .quick-strip { grid-template-columns: 1fr 1fr; }
      .quick-item:nth-child(2) { border-right: 0; }
      .quick-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .intro-band, .industry-grid, .token-layout, .contact-grid, .evaluation { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 620px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .hero { padding: 54px 0 38px; }
      h1 { font-size: 39px; }
      .hero-copy { font-size: 15px; }
      .hero-visual { padding: 20px; }
      .quick-item { padding: 16px; }
      section.content-section { padding: 58px 0; }
      .section-head { display: block; }
      .section-head h2 { font-size: 27px; }
      .section-head p { margin-top: 10px; }
      .intro-band { padding: 25px 22px; gap: 16px; }
      .intro-band h2 { font-size: 25px; }
      .cap-grid { grid-template-columns: 1fr 1fr; }
      .cap-item { min-height: 165px; padding: 18px 15px; }
      .cap-item h3 { font-size: 15px; }
      .cap-item p { font-size: 12px; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .workflow-item { padding: 20px 12px 22px 0; }
      .workflow-item:not(:last-child)::after { display: none; }
      .industry-list { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr; }
      .review p { min-height: 0; }
      .feature-rows { grid-template-columns: 1fr; }
      .article-grid { grid-template-columns: 1fr; }
      .closing-band { display: block; padding: 26px 22px; }
      .closing-band .button { margin-top: 17px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .form-panel { padding: 20px; }
      .footer-top { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools a, .float-tools button { width: 42px; }
    }