:root {
      color-scheme: light;
      --ink: #202420;
      --muted: #60665f;
      --paper: #f8f8f5;
      --white: #fff;
      --line: #e4e6df;
      --green: #b9ef45;
      --green-deep: #263b18;
      --pink: #ff6d62;
      --blue: #87d9e4;
      --yellow: #f4d663;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      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;
      background: rgba(248,248,245,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px);
    }
    .header-inner { 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-size: 17px; font-weight: 800; }
    .brand img { width: 38px; max-height: 38px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 10px 12px; color: #454a44; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: #3d7015; }
    .header-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 9px;
      border: 0; border-radius: 3px; background: var(--green); color: var(--ink);
      padding: 12px 18px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .header-cta:hover, .button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(39,54,22,.14); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white); color: var(--ink); border-radius: 3px; cursor: pointer; }
    .hero { overflow: hidden; position: relative; padding: 82px 0 52px; background: #e6f6a8; }
    .hero:after {
      content: ""; position: absolute; right: -110px; top: 62px; width: 360px; height: 360px;
      border: 1px solid rgba(32,36,32,.18); border-radius: 50%; box-shadow: 0 0 0 34px rgba(255,255,255,.18), 0 0 0 68px rgba(255,255,255,.12);
      pointer-events: none;
    }
    .hero-grid { display: grid; grid-template-columns: minmax(0,1fr) 290px; gap: 50px; align-items: center; position: relative; z-index: 1; }
    .eyebrow { margin: 0 0 14px; color: #45631d; font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }
    h1 { max-width: 760px; margin: 0; font-size: clamp(40px, 6vw, 70px); line-height: 1.08; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 22px 0 26px; color: #3f4836; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .button-dark { background: var(--ink); color: white; }
    .button-dark:hover { background: #3c4439; }
    .hero-note { margin: 18px 0 0; color: #505a45; font-size: 13px; }
    .hero-mark { border-left: 1px solid rgba(32,36,32,.25); padding: 12px 0 12px 25px; }
    .hero-mark strong { display: block; max-width: 220px; font-size: 24px; line-height: 1.3; }
    .hero-mark span { display: block; margin-top: 12px; color: #4e5845; font-size: 13px; }
    .metric-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 66px; border-top: 1px solid rgba(32,36,32,.2); }
    .metric { padding: 19px 18px 0 0; }
    .metric strong { display: block; font-size: 20px; }
    .metric span { color: #535b4a; font-size: 12px; }
    .section { padding: 76px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head > div { max-width: 720px; }
    .section-kicker { margin: 0 0 7px; color: #658d28; font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    h2 { margin: 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.2; letter-spacing: 0; }
    .section-intro { max-width: 680px; margin: 12px 0 0; color: var(--muted); }
    h3 { margin: 0 0 9px; font-size: 19px; line-height: 1.35; }
    .intro-band { background: var(--ink); color: white; }
    .intro-band .section-kicker { color: var(--green); }
    .intro-band .section-intro { color: #d4d9d1; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .intro-grid p { margin: 0 0 14px; color: #e0e4de; }
    .capability-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px 22px; margin: 0; padding: 0; list-style: none; }
    .capability-list li { padding: 12px 0; border-bottom: 1px solid #414741; color: #f1f2ef; }
    .capability-list li:before { content: "＋"; margin-right: 9px; color: var(--green); }
    .service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .service-item { padding: 23px; background: var(--white); min-height: 170px; transition: background .2s ease, transform .2s ease; }
    .service-item:hover { position: relative; z-index: 1; transform: translateY(-3px); background: #f4f9e9; }
    .service-index { display: block; margin-bottom: 18px; color: #71932f; font-size: 12px; font-weight: 800; }
    .service-item p, .solution p, .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .tool-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 25px; }
    .tool-cloud span { padding: 7px 11px; background: #eef0e9; color: #343a33; font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; counter-reset: step; }
    .step { padding-top: 17px; border-top: 3px solid var(--green); counter-increment: step; }
    .step:before { content: "0" counter(step); display: block; margin-bottom: 15px; color: #678c2d; font-size: 13px; font-weight: 800; }
    .solutions { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
    .solution { padding: 23px 0; border-top: 1px solid #aeb4a8; }
    .solution:nth-child(3n+2) { border-top-color: var(--pink); }
    .solution:nth-child(3n) { border-top-color: #6bbfca; }
    .network-band { background: #e5f3f3; }
    .network-content { display: grid; grid-template-columns: .85fr 1.15fr; gap: 42px; align-items: start; }
    .network-content p { margin: 12px 0 0; color: #515e5c; }
    .network-points { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: #c9dcdc; border: 1px solid #c9dcdc; }
    .network-points div { padding: 18px; background: #f5fbfa; }
    .network-points strong { display: block; margin-bottom: 5px; }
    .network-points span { color: #596563; font-size: 13px; }
    .showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .showcase figure { margin: 0; background: #eceee8; }
    .showcase img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
    .showcase figcaption { padding: 12px 15px; color: #434941; font-size: 13px; }
    .showcase-square { max-width: 520px; }
    .showcase-square img { aspect-ratio: 1/1; object-fit: cover; }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .review { padding: 21px; background: #fff; }
    .review blockquote { margin: 0 0 18px; color: #3c423b; font-size: 14px; }
    .review cite { color: #65705e; font-size: 12px; font-style: normal; font-weight: 700; }
    .rating-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 35px; align-items: center; padding: 30px; background: #fff0cd; }
    .rating-score { padding-right: 28px; border-right: 1px solid #dfd0a9; }
    .rating-score strong { display: block; font-size: 54px; line-height: 1; }
    .rating-score span { color: #60553b; }
    .stars { color: #a55a16; font-size: 22px; letter-spacing: 2px; }
    .table-wrap { overflow-x: auto; margin-top: 25px; border: 1px solid var(--line); background: white; }
    table { width: 100%; border-collapse: collapse; min-width: 680px; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #f0f2eb; font-size: 13px; }
    td { color: #4d544b; font-size: 13px; }
    tr:last-child td { border-bottom: 0; }
    .good { color: #426f16; font-weight: 750; }
    .token-band { background: #fbe2dd; }
    .token-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; align-items: center; }
    .token-grid p { color: #514844; }
    .token-callout { padding: 21px; border-left: 4px solid var(--pink); background: #fff8f6; }
    .token-callout strong { display: block; margin-bottom: 7px; }
    .article-list { display: grid; grid-template-columns: repeat(5,1fr); gap: 16px; }
    .article-link { display: flex; min-height: 132px; flex-direction: column; justify-content: space-between; padding: 17px; border: 1px solid var(--line); background: white; transition: transform .2s ease, border-color .2s ease; }
    .article-link:hover { transform: translateY(-3px); border-color: #9abd5b; }
    .article-link span { color: #718d3d; font-size: 12px; }
    .article-link strong { font-size: 15px; line-height: 1.45; }
    .faq-list { border-top: 1px solid #cfd3ca; }
    .faq-list details { border-bottom: 1px solid #cfd3ca; }
    .faq-list summary { position: relative; padding: 17px 40px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary:after { content: "+"; position: absolute; right: 5px; top: 12px; font-size: 23px; font-weight: 400; }
    .faq-list details[open] summary:after { content: "−"; }
    .faq-list details p { max-width: 850px; margin: 0; padding: 0 30px 18px 0; color: var(--muted); font-size: 14px; }
    .contact-band { background: #dff0a9; }
    .contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 42px; align-items: start; }
    .contact-details { margin-top: 24px; }
    .contact-details p { margin: 8px 0; color: #414a37; }
    .qr { width: 116px; margin-top: 16px; border: 4px solid white; }
    .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 #bdc8a6; border-radius: 2px; background: #fff; color: var(--ink); padding: 11px 12px; }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-note { margin: 10px 0 0; color: #59634b; font-size: 12px; }
    .footer { padding: 30px 0; background: #202420; color: #f2f3ef; }
    .footer-inner { display: flex; align-items: start; justify-content: space-between; gap: 25px; }
    .footer p { margin: 0; color: #d5dad2; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 9px 18px; max-width: 620px; }
    .footer-links a { color: #e1e8d8; font-size: 13px; }
    .footer-links a:hover { color: var(--green); }
    .back-top { position: fixed; right: 18px; bottom: 18px; z-index: 15; display: grid; place-items: center; width: 44px; height: 44px; border: 0; border-radius: 3px; background: var(--ink); color: white; cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .2s ease, transform .2s ease; }
    .back-top.visible { opacity: 1; pointer-events: auto; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.in-view { 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: 940px) {
      .menu-toggle { display: inline-grid; place-items: center; }
      .header-cta { display: none; }
      .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 10px 20px 16px; border-bottom: 1px solid var(--line); background: var(--paper); align-items: stretch; flex-direction: column; }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 11px 0; border-bottom: 1px solid #e9eae5; }
      .hero-grid { grid-template-columns: 1fr 220px; gap: 25px; }
      .article-list { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .hero { padding: 59px 0 34px; }
      .hero-grid, .intro-grid, .network-content, .token-grid, .contact-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 28px; }
      .hero-mark { max-width: 340px; }
      .metric-strip { grid-template-columns: repeat(2,1fr); margin-top: 38px; row-gap: 15px; }
      .metric { padding-top: 13px; }
      .section { padding: 55px 0; }
      .section-head { align-items: start; flex-direction: column; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .service-item { padding: 17px; min-height: 182px; }
      .workflow { grid-template-columns: repeat(2,1fr); row-gap: 28px; }
      .solutions { grid-template-columns: repeat(2,1fr); gap: 12px 18px; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .rating-panel { grid-template-columns: 1fr; gap: 19px; padding: 22px; }
      .rating-score { padding: 0 0 18px; border-right: 0; border-bottom: 1px solid #dfd0a9; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .footer-inner { flex-direction: column; }
      .showcase { gap: 14px; }
    }
    @media (max-width: 440px) {
      .service-grid, .review-grid, .solutions, .network-points, .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .showcase { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .brand { font-size: 15px; }
    }