:root {
      color-scheme: light;
      --ink: #17221f;
      --muted: #5e6964;
      --paper: #f9f7f2;
      --white: #fffefa;
      --line: #dedfd6;
      --green: #176c55;
      --green-dark: #10523f;
      --lime: #d9f264;
      --coral: #f27661;
      --yellow: #f6c94f;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    img { max-width: 100%; height: auto; }
    button, input, select, textarea { font: inherit; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(249,247,242,.96);
      border-bottom: 1px solid rgba(23,34,31,.1);
      backdrop-filter: blur(12px);
    }
    .nav-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; text-decoration: none; font-weight: 800; }
    .brand img { width: 42px; max-height: 42px; 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; font-size: 13px; color: #34413c; text-decoration: none; }
    .nav-links a:hover { color: var(--green); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      border: 0; border-radius: 3px; padding: 12px 18px;
      background: var(--green); color: #fff; font-weight: 750; text-decoration: none;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta:hover, .button:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(16,82,63,.18); }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); border-radius: 3px; padding: 9px 12px; color: var(--ink); }
    .hero { position: relative; overflow: hidden; padding: 76px 0 52px; background: #e8f1df; }
    .hero::before {
      content: ""; position: absolute; width: 330px; height: 330px; border: 1px solid rgba(23,108,85,.18);
      border-radius: 50%; right: max(4%, calc((100vw - 1160px)/2)); top: -168px;
      box-shadow: 0 0 0 28px rgba(23,108,85,.035), 0 0 0 64px rgba(23,108,85,.025);
      animation: drift 9s ease-in-out infinite alternate;
    }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0,1.25fr) minmax(250px,.75fr); gap: 54px; align-items: center; }
    .eyebrow { margin: 0 0 16px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; }
    h1 { max-width: 720px; margin: 0; font-size: clamp(42px, 6vw, 72px); line-height: 1.08; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 22px 0 26px; color: #46544e; font-size: 18px; }
    .hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
    .button.secondary { background: transparent; border: 1px solid var(--green); color: var(--green-dark); }
    .button.secondary:hover { background: #dbe9d3; box-shadow: none; }
    .hero-panel { padding: 23px; border-left: 3px solid var(--coral); background: var(--white); }
    .hero-panel strong { display: block; font-size: 19px; }
    .hero-panel p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
    .hero-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin-top: 54px; border: 1px solid var(--line); background: var(--line); }
    .stat { padding: 19px 22px; background: var(--white); }
    .stat strong { display: block; color: var(--green-dark); font-size: 23px; line-height: 1.3; }
    .stat span { color: var(--muted); font-size: 13px; }
    section { padding: 74px 0; }
    .section-head { max-width: 700px; margin-bottom: 32px; }
    .section-head h2 { margin: 0 0 10px; font-size: clamp(27px,4vw,40px); line-height: 1.2; }
    .section-head p { margin: 0; color: var(--muted); }
    .about-band { background: #fffefa; border-block: 1px solid var(--line); }
    .about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; align-items: start; }
    .about-grid h2 { margin: 0; font-size: 38px; line-height: 1.2; }
    .about-copy p { margin: 0 0 14px; color: #4f5b55; }
    .tag-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
    .tag { display: inline-flex; padding: 7px 11px; border: 1px solid #c7d6c5; color: var(--green-dark); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .service-item { padding: 22px 20px; background: var(--white); border: 1px solid var(--line); transition: transform .22s ease, border-color .22s ease; }
    .service-item:hover { transform: translateY(-4px); border-color: #91b6a0; }
    .service-item h3 { margin: 0 0 8px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-index { display: block; margin-bottom: 15px; color: var(--coral); font-size: 12px; font-weight: 800; }
    .workflows { background: #e8f1df; }
    .steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; counter-reset: flow; }
    .step { position: relative; padding: 21px 20px 18px 0; border-top: 2px solid #92b99f; counter-increment: flow; }
    .step::before { content: "0" counter(flow); display: block; margin-bottom: 16px; color: var(--green); font-weight: 800; }
    .step h3 { margin: 0 0 7px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-row { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
    .industry-row h2 { margin: 0 0 14px; font-size: 34px; }
    .industry-row p { color: var(--muted); }
    .media-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .media-strip figure { margin: 0; padding: 8px; background: var(--white); border: 1px solid var(--line); }
    .media-strip img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: contain; }
    .media-strip .square { grid-column: 1 / -1; max-width: 240px; }
    .comparison { background: #f1eee5; }
    .rating { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 24px; }
    .rating strong { color: var(--green-dark); font-size: 34px; }
    .rating span { color: #b14f3e; font-weight: 800; }
    .table-wrap { overflow-x: auto; background: var(--white); border: 1px solid var(--line); }
    table { width: 100%; border-collapse: collapse; min-width: 660px; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; }
    th { background: #e6efdf; color: var(--green-dark); font-size: 14px; }
    td { font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .cases { display: grid; grid-template-columns: 1.1fr .9fr; gap: 34px; align-items: center; }
    .cases img { display: block; width: 100%; background: var(--white); border: 1px solid var(--line); }
    .cases h2 { margin: 0 0 12px; font-size: 34px; }
    .cases p { color: var(--muted); }
    .reviews { background: #fffefa; border-block: 1px solid var(--line); }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
    .review { padding: 20px; border-top: 3px solid var(--yellow); background: #f9f7f2; }
    .review p { margin: 0 0 15px; color: #394640; font-size: 14px; }
    .review strong { font-size: 13px; }
    .review span { display: block; color: var(--muted); font-size: 12px; }
    .token-band { background: var(--green-dark); color: #fff; }
    .token-band .section-head p, .token-band .eyebrow { color: #d9f264; }
    .token-layout { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; }
    .token-layout h2 { margin: 0 0 10px; font-size: 34px; }
    .token-layout p { max-width: 670px; margin: 0; color: #e0e9e1; }
    .token-layout .button { background: var(--lime); color: #203126; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 40px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 5px; top: 11px; color: var(--green); font-size: 24px; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: 0 30px 18px 0; color: var(--muted); }
    .article-links { display: flex; flex-wrap: wrap; gap: 10px 18px; }
    .article-links a { color: var(--green-dark); font-weight: 650; text-underline-offset: 4px; }
    .article-links a:hover { color: #b14f3e; }
    .contact { background: #e8f1df; }
    .contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: start; }
    .contact h2 { margin: 0 0 12px; font-size: 36px; }
    .contact-info p { color: #4f5b55; }
    .contact-info a { color: var(--green-dark); }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; padding: 22px; background: var(--white); border: 1px solid var(--line); }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; padding: 11px 12px; border: 1px solid #cbd0c8; border-radius: 2px; background: #fff; color: var(--ink); }
    input:focus, select:focus, textarea:focus { outline: 2px solid #7ab094; outline-offset: 1px; }
    textarea { min-height: 110px; resize: vertical; }
    .contact-form button { justify-self: start; cursor: pointer; }
    .social-links { display: flex; flex-wrap: wrap; gap: 12px 18px; margin-top: 18px; font-size: 14px; }
    .site-footer { padding: 28px 0; background: #17221f; color: #f2f4ef; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
    .footer-row p { margin: 0; color: #d2d9d3; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
    .footer-links a { color: #e5eddf; font-size: 13px; text-underline-offset: 3px; }
    .float-help { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .float-help a { display: block; padding: 10px 13px; border: 1px solid var(--green); background: var(--white); color: var(--green-dark); text-decoration: none; font-size: 13px; font-weight: 750; box-shadow: 0 4px 16px rgba(23,34,31,.12); }
    .float-help a:hover { background: var(--lime); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes drift { to { transform: translateY(18px) rotate(8deg); } }
    @media (max-width: 940px) {
      .menu-toggle { display: inline-flex; align-items: center; gap: 7px; }
      .nav-cta { display: none; }
      .nav-links { display: none; position: absolute; top: 73px; left: 0; right: 0; padding: 14px 20px 18px; background: var(--paper); border-bottom: 1px solid var(--line); align-items: flex-start; }
      .nav-links.open { display: grid; grid-template-columns: repeat(3,1fr); }
      .nav-links a { padding: 9px 4px; }
      .hero-inner, .about-grid, .industry-row, .cases, .contact-grid { grid-template-columns: 1fr; }
      .hero-inner { gap: 28px; }
      .steps { grid-template-columns: repeat(2,1fr); gap: 16px 24px; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .review-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 600px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav-row { min-height: 66px; }
      .brand img { width: 36px; max-height: 36px; }
      .nav-links { top: 65px; }
      .nav-links.open { grid-template-columns: repeat(2,1fr); }
      .hero { padding: 54px 0 34px; }
      h1 { font-size: 43px; }
      .hero-copy { font-size: 16px; }
      .hero-stats { grid-template-columns: 1fr; margin-top: 36px; }
      .stat { padding: 14px 18px; }
      section { padding: 54px 0; }
      .service-grid, .review-grid, .steps { grid-template-columns: 1fr; }
      .about-grid { gap: 22px; }
      .about-grid h2, .industry-row h2, .cases h2, .contact h2 { font-size: 30px; }
      .token-layout { grid-template-columns: 1fr; }
      .contact-form { grid-template-columns: 1fr; padding: 17px; }
      .field.full { grid-column: auto; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .float-help { right: 10px; bottom: 10px; }
      .float-help a { padding: 8px 10px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }