:root {
      color-scheme: light;
      --ink: #182927;
      --muted: #596965;
      --paper: #f7f9f8;
      --white: #fff;
      --line: #dce5e1;
      --green: #176b55;
      --green-dark: #104c40;
      --lime: #d9ef78;
      --coral: #ec745c;
      --blue: #4e7da0;
      --gold: #f3c95f;
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    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;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    img { display: block; 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; border-bottom: 1px solid rgba(220,229,225,.9); background: rgba(247,249,248,.94); backdrop-filter: blur(12px); }
    .nav-row { min-height: 76px; 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-size: 17px; font-weight: 760; }
    .brand img { width: 42px; max-height: 42px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; min-width: 0; }
    .nav-links a { padding: 10px 11px; color: #43534f; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--green); }
    .nav-action { margin-left: 9px; padding: 10px 16px !important; border-radius: 5px; background: var(--green); color: #fff !important; font-weight: 700; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--ink); cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 72px 0 46px; background: #e9f3ed; border-bottom: 1px solid #d9e7dc; }
    .hero::before { position: absolute; content: ""; width: 380px; height: 380px; top: -190px; right: 8%; border: 1px solid rgba(23,107,85,.16); border-radius: 50%; box-shadow: 0 0 0 38px rgba(23,107,85,.035), 0 0 0 78px rgba(23,107,85,.025); }
    .hero::after { position: absolute; content: ""; width: 120px; height: 120px; right: 11%; bottom: 15%; border: 1px solid rgba(236,116,92,.35); transform: rotate(32deg); }
    .hero-inner { position: relative; z-index: 1; }
    .hero-copy { max-width: 760px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
    .eyebrow::before { width: 20px; height: 2px; background: var(--coral); content: ""; }
    h1 { max-width: 700px; margin: 17px 0 17px; font-size: clamp(38px, 6vw, 66px); line-height: 1.13; letter-spacing: 0; }
    .hero-copy p { max-width: 660px; margin: 0; color: #465b54; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
    .button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 47px; padding: 11px 19px; border: 1px solid transparent; border-radius: 5px; background: var(--green); color: #fff; font-weight: 750; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; cursor: pointer; }
    .button:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 18px rgba(16,76,64,.18); }
    .button.secondary { border-color: #a9c6b8; background: transparent; color: var(--green-dark); }
    .button.secondary:hover { background: #fff; }
    .hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 29px; color: #496057; font-size: 13px; }
    .hero-points span::before { content: "✓"; margin-right: 7px; color: var(--green); font-weight: 900; }
    .hero-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 55px; border-top: 1px solid #cbdcd0; }
    .hero-stat { padding: 19px 20px 0 0; }
    .hero-stat + .hero-stat { padding-left: 22px; border-left: 1px solid #cbdcd0; }
    .hero-stat strong { display: block; font-size: 15px; }
    .hero-stat span { color: var(--muted); font-size: 12px; }
    .section { padding: 76px 0; }
    .section.tint { background: #edf3ef; border-block: 1px solid #e0e8e3; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 22px; margin-bottom: 29px; }
    .section-head > div { max-width: 710px; }
    .section-kicker { color: var(--coral); font-size: 12px; font-weight: 800; }
    h2 { margin: 4px 0 8px; font-size: clamp(27px, 4vw, 39px); line-height: 1.25; letter-spacing: 0; }
    .section-head p, .lead { margin: 0; color: var(--muted); }
    .text-link { color: var(--green); font-weight: 750; white-space: nowrap; }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: start; }
    .intro-copy p { margin: 0 0 14px; color: #52625d; }
    .intro-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 22px; border-top: 1px solid var(--line); }
    .fact { padding: 17px 0; border-bottom: 1px solid var(--line); }
    .fact strong { display: block; font-size: 15px; }
    .fact span { color: var(--muted); font-size: 13px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .tag { padding: 6px 10px; border: 1px solid #d5e1da; border-radius: 3px; background: #fff; color: #38554a; font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 26px; border-top: 1px solid var(--line); }
    .service-item { padding: 23px 0 24px; border-bottom: 1px solid var(--line); }
    .service-top { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
    .service-mark { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 4px; background: #dff0e5; color: var(--green); font-size: 16px; font-weight: 800; }
    .service-item:nth-child(3n+2) .service-mark { background: #ffebe3; color: #b44d3a; }
    .service-item:nth-child(3n) .service-mark { background: #e4edf4; color: #426d8b; }
    .service-item h3 { margin: 0; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-item small { display: block; margin-top: 8px; color: #71817b; font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 21px; counter-reset: step; }
    .step { position: relative; padding: 20px 18px 18px 0; border-top: 2px solid var(--green); counter-increment: step; }
    .step::before { content: "0" counter(step); color: var(--coral); font-size: 12px; font-weight: 850; }
    .step h3 { margin: 8px 0 6px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .industries { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
    .industry-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 22px; }
    .industry-list div { padding: 13px 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: 22px 0 22px 25px; border-left: 3px solid var(--coral); }
    .network-panel h3 { margin: 0 0 8px; font-size: 19px; }
    .network-panel p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
    .network-panel ul { display: grid; gap: 8px; margin: 0; padding-left: 19px; color: #465953; font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .case .media { overflow: hidden; aspect-ratio: 16 / 9; background: #e7eee9; }
    .case .media img { width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 15px 16px 17px; }
    .case-copy span { color: var(--coral); font-size: 11px; font-weight: 800; }
    .case-copy h3 { margin: 4px 0; font-size: 16px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 24px; }
    .review { padding: 18px 0; border-top: 1px solid var(--line); }
    .review p { margin: 0 0 12px; color: #43534e; font-size: 14px; }
    .review strong { font-size: 13px; }
    .review span { display: block; color: #78857f; font-size: 12px; }
    .rating-wrap { display: grid; grid-template-columns: .72fr 1.28fr; gap: 36px; align-items: start; }
    .rating-score { padding: 25px; background: #e5f0e8; border-left: 4px solid var(--green); }
    .rating-score .stars { color: #b77816; font-size: 21px; letter-spacing: 0; }
    .rating-score strong { display: block; margin: 5px 0; color: var(--green-dark); font-size: 48px; line-height: 1.1; }
    .rating-score span { color: #52635c; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; border-collapse: collapse; text-align: left; }
    th, td { min-width: 115px; padding: 13px 14px; border-bottom: 1px solid var(--line); font-size: 13px; vertical-align: top; }
    th { background: #edf3ef; font-weight: 750; }
    td:first-child, th:first-child { min-width: 130px; }
    tr:last-child td { border-bottom: 0; }
    .good { color: var(--green); font-weight: 750; }
    .token-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 38px; align-items: start; }
    .token-layout p { margin: 0 0 12px; color: var(--muted); }
    .price-note { padding: 20px; background: #fff0e9; border-left: 3px solid var(--coral); }
    .price-note strong { display: block; margin-bottom: 5px; }
    .price-note p { margin: 0; color: #66544c; font-size: 13px; }
    .form-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 48px; align-items: start; }
    .form-aside p { color: var(--muted); }
    .contact-line { padding: 12px 0; border-top: 1px solid var(--line); font-size: 14px; }
    .contact-line strong { display: inline-block; min-width: 90px; }
    .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: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #cbd8d1; border-radius: 3px; outline: 0; background: #fff; color: var(--ink); }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(23,107,85,.1); }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-status { min-height: 24px; margin: 9px 0 0; color: var(--green); font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 36px 17px 0; font-weight: 720; cursor: pointer; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { position: absolute; right: 5px; content: "+"; color: var(--green); font-size: 22px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { max-width: 850px; margin: -3px 0 17px; color: var(--muted); font-size: 14px; }
    .article-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 15px; }
    .article { display: block; padding: 14px 0; border-top: 2px solid var(--blue); }
    .article span { color: var(--blue); font-size: 11px; font-weight: 800; }
    .article strong { display: block; margin: 6px 0; font-size: 14px; line-height: 1.5; }
    .article small { color: var(--muted); font-size: 12px; }
    .knowledge { display: grid; grid-template-columns: 1.2fr .8fr; gap: 34px; align-items: start; }
    .knowledge p { margin: 0; color: var(--muted); }
    .partner-links { display: flex; flex-wrap: wrap; gap: 10px 20px; padding-top: 17px; border-top: 1px solid var(--line); }
    .partner-links a { color: #496057; font-size: 13px; }
    .partner-links a:hover { color: var(--green); text-decoration: underline; }
    .site-footer { padding: 27px 0; border-top: 1px solid var(--line); background: #e9efeb; color: #33443e; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
    .footer-row p { margin: 0; font-size: 12px; }
    .footer-nav { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; }
    .floating-tools { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .floating-tools a, .floating-tools button { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid #cbd8d1; border-radius: 4px; background: #fff; color: var(--green-dark); box-shadow: 0 5px 18px rgba(24,41,39,.1); font-size: 12px; font-weight: 750; cursor: pointer; }
    .floating-tools a:hover, .floating-tools button:hover { background: var(--green); color: #fff; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @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: 980px) {
      .nav-row { min-height: 68px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-links { position: absolute; top: 100%; left: 0; right: 0; display: none; align-items: stretch; padding: 10px 20px 16px; border-bottom: 1px solid var(--line); background: var(--paper); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 10px 8px; }
      .nav-action { margin: 5px 0 0; text-align: center; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .article-row { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .hero { padding: 54px 0 35px; }
      .hero::before { right: -210px; }
      .hero::after { right: 9%; bottom: 10%; width: 72px; height: 72px; }
      .hero-copy p { font-size: 15px; }
      .hero-band { grid-template-columns: repeat(2, 1fr); gap: 0 15px; margin-top: 39px; }
      .hero-stat, .hero-stat + .hero-stat { padding: 15px 0; border-left: 0; border-bottom: 1px solid #cbdcd0; }
      .section { padding: 56px 0; }
      .section-head { align-items: start; flex-direction: column; }
      .intro-grid, .industries, .rating-wrap, .token-layout, .form-layout, .knowledge { grid-template-columns: 1fr; gap: 25px; }
      .service-grid { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: repeat(2, 1fr); gap: 12px 18px; }
      .case-grid { grid-template-columns: 1fr; }
      .case .media { aspect-ratio: 16 / 8; }
      .review-grid { grid-template-columns: 1fr; }
      .article-row { grid-template-columns: repeat(2, 1fr); gap: 10px 16px; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .nav-links.open { grid-template-columns: repeat(2, 1fr); }
    }