:root {
      color-scheme: light;
      --ink: #202124;
      --muted: #5d626b;
      --paper: #f8f8f4;
      --white: #fff;
      --line: #e4e5df;
      --lime: #d7f45b;
      --coral: #ff604b;
      --blue: #3158e8;
      --teal: #187c72;
      --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", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    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; }
    .site-header {
      position: sticky; top: 0; z-index: 20;
      background: rgba(248,248,244,.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: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; }
    .brand img { display: block; width: 40px; 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: 8px 9px; color: #42464d; font-size: 13px; white-space: nowrap; }
    .nav-links a:hover { color: var(--blue); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border: 0; border-radius: 4px;
      background: var(--ink); color: var(--white); font-weight: 700; cursor: pointer;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta { flex: 0 0 auto; min-height: 40px; padding-inline: 14px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(32,33,36,.16); }
    .button.lime { background: var(--lime); color: var(--ink); }
    .button.outline { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white); color: var(--ink); border-radius: 4px; }
    .hero { padding: 76px 0 62px; overflow: hidden; background: var(--lime); }
    .hero-grid { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(270px,.8fr); gap: 52px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; font-size: 12px; letter-spacing: 0; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 23px; height: 3px; background: var(--coral); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 690px; margin: 18px 0; font-size: clamp(42px, 6vw, 76px); line-height: 1.04; letter-spacing: 0; }
    .hero-copy { max-width: 600px; margin-bottom: 26px; color: #363a40; font-size: 18px; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
    .hero-actions .button { min-height: 50px; padding-inline: 22px; }
    .hero-mark { position: relative; min-height: 275px; padding: 28px; background: var(--blue); color: var(--white); overflow: hidden; }
    .hero-mark::after { content: ""; position: absolute; width: 170px; height: 170px; right: -48px; bottom: -62px; border: 24px solid var(--coral); border-radius: 50%; }
    .hero-mark .mark-kicker { color: var(--lime); font-size: 13px; font-weight: 800; }
    .hero-mark strong { display: block; max-width: 300px; margin-top: 34px; font-size: 30px; line-height: 1.2; }
    .hero-mark p { max-width: 270px; margin: 14px 0 0; color: #e4e8ff; font-size: 14px; }
    .hero-stamp { position: absolute; right: 25px; top: 24px; display: grid; width: 66px; aspect-ratio: 1; place-items: center; border-radius: 50%; background: var(--coral); color: var(--ink); font-size: 12px; font-weight: 900; transform: rotate(8deg); }
    .ticker { background: var(--ink); color: var(--white); padding: 13px 0; }
    .ticker-row { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; font-size: 13px; }
    .ticker b { color: var(--lime); }
    main section { padding: 74px 0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
    .section-head h2 { max-width: 650px; margin: 10px 0 0; font-size: clamp(30px, 4vw, 46px); line-height: 1.15; letter-spacing: 0; }
    .section-head p { max-width: 430px; margin: 0; color: var(--muted); }
    .intro { display: grid; grid-template-columns: .8fr 1.2fr; gap: 54px; align-items: start; }
    .intro-lead { border-left: 5px solid var(--coral); padding-left: 22px; }
    .intro-lead h2 { margin: 0; font-size: 34px; line-height: 1.2; }
    .intro-copy { color: var(--muted); }
    .metric-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 35px; }
    .metric { padding: 22px; background: var(--white); }
    .metric strong { display: block; font-size: 25px; }
    .metric span { color: var(--muted); font-size: 13px; }
    .services-band { background: #f0f1eb; }
    .service-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
    .service-item { min-height: 170px; padding: 21px; background: var(--white); border-top: 3px solid var(--blue); transition: transform .2s ease, box-shadow .2s ease; }
    .service-item:nth-child(4n+2) { border-color: var(--coral); }
    .service-item:nth-child(4n+3) { border-color: var(--teal); }
    .service-item:nth-child(4n+4) { border-color: #b5cf23; }
    .service-item:hover { transform: translateY(-4px); box-shadow: 0 12px 25px rgba(32,33,36,.09); }
    .service-item h3 { margin: 0 0 9px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .platform-list { display: flex; flex-wrap: wrap; gap: 9px; }
    .platform-list span { padding: 8px 12px; border: 1px solid #d9dcd4; background: var(--white); font-size: 14px; }
    .platform-note { color: var(--muted); margin-bottom: 20px; }
    .process { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; border-top: 1px solid var(--line); }
    .step { position: relative; padding: 25px 20px 12px 0; border-right: 1px solid var(--line); }
    .step:last-child { border-right: 0; }
    .step-number { color: var(--coral); font-weight: 900; font-size: 13px; }
    .step h3 { margin: 10px 0 6px; font-size: 19px; }
    .step p { margin: 0; max-width: 230px; color: var(--muted); font-size: 14px; }
    .industry-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
    .industry { padding: 24px; background: var(--blue); color: var(--white); }
    .industry:nth-child(2) { background: var(--coral); color: var(--ink); }
    .industry:nth-child(3) { background: var(--teal); }
    .industry h3 { margin-bottom: 9px; font-size: 22px; }
    .industry p { margin: 0; font-size: 14px; }
    .industry .tagline { display: block; margin-top: 17px; font-weight: 800; font-size: 12px; }
    .showcase { background: #f0f1eb; }
    .image-grid { display: grid; grid-template-columns: 1fr 1fr .76fr; gap: 14px; align-items: start; }
    .image-frame { margin: 0; background: var(--white); padding: 8px; }
    .image-frame img { display: block; width: 100%; height: auto; object-fit: contain; }
    .image-frame figcaption { padding: 10px 4px 2px; font-size: 13px; font-weight: 700; }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .review { padding: 22px; border: 1px solid var(--line); background: var(--white); }
    .review blockquote { margin: 0 0 18px; color: #3d4248; }
    .review footer { color: var(--muted); font-size: 13px; }
    .rating-panel { display: grid; grid-template-columns: .7fr 1.3fr; gap: 35px; align-items: center; padding: 32px; background: var(--ink); color: var(--white); }
    .rating-score { padding-right: 25px; border-right: 1px solid #55595e; }
    .rating-score strong { display: block; color: var(--lime); font-size: 58px; line-height: 1; }
    .stars { color: var(--lime); letter-spacing: 0; font-size: 22px; }
    .rating-score span { color: #d5d6d8; font-size: 13px; }
    .comparison { width: 100%; border-collapse: collapse; font-size: 14px; }
    .comparison th, .comparison td { padding: 12px 10px; text-align: left; border-bottom: 1px solid #4a4e53; }
    .comparison th { color: var(--lime); font-weight: 700; }
    .comparison td:first-child { color: #d5d6d8; }
    .rating-note { margin: 14px 0 0; color: #c5c8cc; font-size: 12px; }
    .token-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
    .token-layout h2 { margin: 8px 0 14px; font-size: 36px; line-height: 1.2; }
    .token-layout p { color: var(--muted); }
    .token-steps { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
    .token-steps li { display: flex; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); }
    .token-steps span:last-child { color: var(--muted); text-align: right; }
    .articles { background: #f0f1eb; }
    .article-list { display: grid; grid-template-columns: repeat(5,1fr); gap: 10px; }
    .article-list a { display: flex; min-height: 92px; align-items: center; justify-content: space-between; gap: 12px; padding: 16px; background: var(--white); border-bottom: 2px solid var(--lime); font-size: 14px; font-weight: 700; }
    .article-list a:hover { border-color: var(--coral); }
    .article-list span { color: var(--blue); font-size: 18px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 18px 38px 18px 0; cursor: pointer; font-weight: 750; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 5px; top: 13px; font-size: 23px; color: var(--blue); }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 800px; margin: 0; padding: 0 25px 18px 0; color: var(--muted); }
    .contact { background: var(--coral); }
    .contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 45px; align-items: start; }
    .contact h2 { margin: 10px 0; font-size: 42px; line-height: 1.15; }
    .contact-copy p { max-width: 400px; }
    .contact-details { margin-top: 24px; display: grid; gap: 8px; font-size: 14px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 24px; background: var(--white); }
    .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%; min-height: 44px; padding: 10px 12px; border: 1px solid #d8dad5; border-radius: 2px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 110px; resize: vertical; }
    .contact-form .button { grid-column: 1 / -1; justify-self: start; }
    .footer { padding: 28px 0; background: var(--ink); color: var(--white); }
    .footer-top { display: flex; justify-content: space-between; align-items: start; gap: 28px; }
    .footer p { margin: 6px 0 0; color: #d3d5d8; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; max-width: 690px; justify-content: flex-end; }
    .footer-links a { color: #e2e4e7; font-size: 13px; }
    .footer-links a:hover { color: var(--lime); }
    .copyright { margin-top: 20px; padding-top: 15px; border-top: 1px solid #4a4e53; color: #c4c7cb; font-size: 12px; }
    .floating-help { position: fixed; right: 18px; bottom: 18px; z-index: 15; display: grid; gap: 8px; }
    .floating-help a { display: grid; width: 48px; height: 48px; place-items: center; background: var(--blue); color: var(--white); font-size: 12px; font-weight: 800; box-shadow: 0 5px 16px rgba(0,0,0,.18); }
    .floating-help a:last-child { background: var(--lime); color: var(--ink); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 1000px) {
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-row { position: relative; }
      .nav-links { display: none; position: absolute; left: 0; right: 0; top: calc(100% + 1px); padding: 10px; background: var(--paper); border: 1px solid var(--line); box-shadow: 0 12px 24px rgba(32,33,36,.1); align-items: stretch; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(3,1fr); }
      .nav-links a { padding: 10px; }
      .hero-grid { gap: 28px; }
      .service-grid { grid-template-columns: repeat(3,1fr); }
      .article-list { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav-row { min-height: 64px; gap: 10px; }
      .brand { font-size: 14px; gap: 7px; }
      .brand img { width: 34px; height: 34px; }
      .nav-cta { padding-inline: 10px; font-size: 12px; }
      .nav-links.is-open { grid-template-columns: repeat(2,1fr); }
      .hero { padding: 54px 0 42px; }
      .hero-grid, .intro, .token-layout, .contact-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 34px; }
      h1 { font-size: 48px; }
      .hero-copy { font-size: 16px; }
      .hero-mark { min-height: 230px; }
      main section { padding: 54px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 14px; }
      .metric-row { grid-template-columns: repeat(2,1fr); }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .service-item { min-height: 155px; padding: 17px; }
      .process { grid-template-columns: repeat(2,1fr); }
      .step:nth-child(2) { border-right: 0; }
      .step:nth-child(n+3) { border-top: 1px solid var(--line); }
      .industry-grid, .review-grid { grid-template-columns: 1fr; }
      .image-grid { grid-template-columns: 1fr 1fr; }
      .image-frame:last-child { grid-column: 1 / -1; width: min(100%, 330px); }
      .rating-panel { grid-template-columns: 1fr; gap: 22px; padding: 23px; }
      .rating-score { border-right: 0; border-bottom: 1px solid #55595e; padding: 0 0 18px; }
      .comparison { font-size: 12px; }
      .comparison th, .comparison td { padding: 10px 6px; }
      .article-list { grid-template-columns: repeat(2,1fr); }
      .contact-form { padding: 17px; }
      .footer-top { display: block; }
      .footer-links { justify-content: flex-start; margin-top: 18px; }
    }
    @media (max-width: 420px) {
      .nav-cta { display: none; }
      .service-grid { grid-template-columns: 1fr; }
      .service-item { min-height: auto; }
      .contact-form { grid-template-columns: 1fr; }
      .field.full, .contact-form .button { grid-column: auto; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .hero-actions .button { flex: 1 1 100%; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }