:root {
      color-scheme: light;
      --ink: #17251c;
      --muted: #59685e;
      --green: #187b43;
      --green-dark: #105c34;
      --lime: #d9f36a;
      --paper: #f4f8f2;
      --white: #fff;
      --line: #dce6dc;
      --mint: #e8f5e9;
      --orange: #e98d47;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    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; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 10; background: rgba(244,248,242,.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: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { width: 40px; height: 40px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; list-style: none; margin: 0; padding: 0; }
    .nav-links a { display: block; padding: 10px 12px; color: #39483e; font-size: 14px; text-decoration: none; border-radius: 4px; }
    .nav-links a:hover { color: var(--green-dark); background: var(--mint); }
    .nav-cta, .button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 8px; padding: 11px 20px; border: 1px solid var(--green); border-radius: 4px; background: var(--green); color: #fff; text-decoration: none; font-weight: 700; transition: transform .2s, background .2s, box-shadow .2s; }
    .nav-cta:hover, .button:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 20px rgba(24,123,67,.18); }
    .button--light { background: var(--lime); border-color: var(--lime); color: #20321d; }
    .button--light:hover { background: #c9e957; }
    .button--outline { color: var(--green-dark); background: transparent; }
    .button--outline:hover { color: #fff; }
    .menu-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 4px; background: var(--white); color: var(--ink); cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 74px 0 56px; background: #dff1df; border-bottom: 1px solid #c9dfc9; }
    .hero::before { position: absolute; right: -110px; top: -120px; width: 430px; height: 430px; content: ""; border: 1px solid rgba(24,123,67,.2); border-radius: 50%; box-shadow: 0 0 0 35px rgba(24,123,67,.035), 0 0 0 75px rgba(24,123,67,.025); }
    .hero::after { position: absolute; right: 12%; bottom: -150px; width: 270px; height: 270px; content: ""; transform: rotate(35deg); border: 1px solid rgba(24,123,67,.16); }
    .hero-content { position: relative; z-index: 1; max-width: 760px; animation: rise .7s ease both; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 18px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
    .eyebrow::before { width: 22px; height: 3px; content: ""; background: var(--orange); }
    h1 { max-width: 720px; margin: 0; font-size: clamp(38px, 6vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero p { max-width: 660px; margin: 20px 0 26px; color: #405247; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin-top: 20px; color: #53645a; font-size: 13px; }
    .metrics { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 42px; border: 1px solid #c6dcc8; background: #c6dcc8; }
    .metric { padding: 18px 20px; background: rgba(255,255,255,.82); }
    .metric strong { display: block; color: var(--green-dark); font-size: 21px; }
    .metric span { color: var(--muted); font-size: 13px; }
    main { overflow: hidden; }
    .section { padding: 76px 0; border-bottom: 1px solid var(--line); }
    .section--white { background: var(--white); }
    .section--green { background: #eaf4e8; }
    .section-head { max-width: 720px; margin-bottom: 30px; }
    .section-head h2 { margin: 0 0 10px; font-size: 34px; line-height: 1.2; letter-spacing: 0; }
    .section-head p { margin: 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 42px; align-items: start; }
    .intro-copy p { margin: 0 0 14px; color: #46564c; }
    .capability-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px 20px; margin: 22px 0 0; padding: 0; list-style: none; }
    .capability-list li { position: relative; padding-left: 20px; color: #35483b; }
    .capability-list li::before { position: absolute; left: 0; top: .65em; width: 8px; height: 8px; content: ""; background: var(--green); transform: rotate(45deg); }
    .model-panel { padding: 24px; border-left: 4px solid var(--green); background: #f0f6ed; }
    .model-panel h3 { margin: 0 0 8px; font-size: 20px; }
    .model-panel p { margin: 0; color: var(--muted); font-size: 14px; }
    .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .tag { padding: 5px 10px; border: 1px solid #c7d9c7; background: #fff; color: #365241; font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
    .service-item { min-height: 152px; padding: 20px; border: 1px solid var(--line); border-top: 3px solid var(--green); background: #fff; transition: transform .2s, box-shadow .2s; }
    .service-item:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(25,65,39,.09); }
    .service-item h3 { margin: 0 0 8px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .workflow { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 0; counter-reset: step; }
    .step { position: relative; padding: 22px 22px 18px 0; border-top: 2px solid #a9c8ab; counter-increment: step; }
    .step::before { display: block; margin-bottom: 14px; color: var(--green); content: "0" counter(step); font-size: 13px; font-weight: 800; }
    .step h3 { margin: 0 0 6px; font-size: 18px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .solution-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 24px 32px; }
    .solution { padding-top: 16px; border-top: 1px solid #bfd2c0; }
    .solution h3 { margin: 0 0 7px; font-size: 18px; }
    .solution p { margin: 0; color: var(--muted); font-size: 14px; }
    .network { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
    .network-copy p { color: var(--muted); }
    .network-links { display: flex; flex-wrap: wrap; gap: 10px; }
    .network-links span { padding: 8px 12px; border: 1px solid #c7d9c7; background: #fff; color: #31513c; font-size: 14px; }
    .review-score { display: flex; align-items: center; gap: 18px; margin: 0 0 24px; padding: 18px 22px; border-left: 4px solid var(--orange); background: #f7f5e9; }
    .review-score strong { color: var(--green-dark); font-size: 34px; line-height: 1; }
    .stars { color: #bd762b; font-size: 18px; letter-spacing: 0; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 680px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #eaf4e8; color: #213b2a; font-size: 14px; }
    td { color: #46564c; font-size: 14px; }
    tbody tr:last-child td { border-bottom: 0; }
    .yes { color: var(--green-dark); font-weight: 700; }
    .reviews { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
    .review { padding: 20px; border: 1px solid var(--line); background: #fff; }
    .review p { margin: 0 0 16px; color: #3e4e43; font-size: 14px; }
    .review strong { display: block; font-size: 14px; }
    .review span { color: var(--muted); font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .case-media { aspect-ratio: 16 / 9; overflow: hidden; background: #e3eee1; }
    .case-media img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 16px; }
    .case-copy h3 { margin: 0 0 5px; font-size: 17px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 36px; align-items: start; }
    .match-copy h2 { margin: 0 0 12px; font-size: 32px; line-height: 1.2; }
    .match-copy p { color: var(--muted); }
    .match-form { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field--wide { grid-column: 1 / -1; }
    .field label { color: #34483a; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid #cbd8cc; border-radius: 3px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-note { grid-column: 1 / -1; margin: -4px 0 0; color: var(--muted); font-size: 12px; }
    .articles { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 12px; }
    .article-link { display: flex; min-height: 100px; align-items: flex-end; padding: 16px; border: 1px solid var(--line); background: #fff; text-decoration: none; font-weight: 700; transition: border-color .2s, transform .2s; }
    .article-link:hover { transform: translateY(-3px); border-color: var(--green); }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 16px 34px 16px 0; cursor: pointer; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { position: absolute; right: 4px; content: "+"; color: var(--green); font-size: 22px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 860px; margin: 0 0 17px; color: var(--muted); font-size: 14px; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
    .contact-info p { margin: 8px 0; color: var(--muted); }
    .contact-info a { color: var(--green-dark); }
    .contact-qr { width: 144px; margin-top: 18px; padding: 8px; border: 1px solid var(--line); background: #fff; }
    .contact-qr img { display: block; width: 100%; }
    .join-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 26px 0; border-top: 1px solid var(--line); }
    .join-band h3 { margin: 0 0 4px; font-size: 20px; }
    .join-band p { margin: 0; color: var(--muted); font-size: 14px; }
    .site-footer { padding: 28px 0; background: #e6eee4; color: #25382b; }
    .footer-row { display: flex; justify-content: space-between; gap: 24px; align-items: start; }
    .footer-brand { font-weight: 800; }
    .footer-meta { color: #4c5c50; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
    .footer-links a { color: #31513c; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { text-decoration: underline; }
    .copyright { margin-top: 14px; color: #58665b; font-size: 12px; }
    .back-top { position: fixed; right: 18px; bottom: 18px; z-index: 8; width: 44px; height: 44px; border: 1px solid #bfd2c0; border-radius: 4px; background: #fff; color: var(--green-dark); cursor: pointer; box-shadow: 0 4px 14px rgba(20,50,30,.12); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
    .back-top.visible { opacity: 1; pointer-events: auto; }
    .back-top:hover { transform: translateY(-3px); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
    @media (max-width: 920px) {
      .nav-row { flex-wrap: wrap; }
      .menu-toggle { display: inline-flex; margin-left: auto; }
      .nav-cta { display: none; }
      .nav-links { display: none; width: 100%; padding: 4px 0 14px; justify-content: flex-start; flex-wrap: wrap; }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 8px 10px; }
      .service-grid, .reviews, .case-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
      .articles { grid-template-columns: repeat(3, minmax(0,1fr)); }
    }
    @media (max-width: 640px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .hero { padding: 58px 0 34px; }
      .hero p { font-size: 16px; }
      .metrics { grid-template-columns: repeat(2,1fr); margin-top: 30px; }
      .metric { padding: 14px; }
      .section { padding: 54px 0; }
      .section-head h2 { font-size: 28px; }
      .intro-grid, .network, .match-layout, .contact-grid { grid-template-columns: 1fr; gap: 24px; }
      .capability-list { grid-template-columns: 1fr; }
      .service-grid, .reviews, .case-grid { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px 18px; }
      .solution-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
      .articles { grid-template-columns: 1fr 1fr; }
      .match-form { grid-template-columns: 1fr; }
      .field--wide, .form-note { grid-column: auto; }
      .join-band, .footer-row { flex-direction: column; align-items: flex-start; }
      .contact-qr { width: 128px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
    }