:root {
      color-scheme: light;
      --ink: #172a2b;
      --muted: #5b7070;
      --line: #dce7e4;
      --paper: #f5f8f7;
      --white: #fff;
      --green: #087c68;
      --green-dark: #075749;
      --mint: #c8f36a;
      --coral: #f17c61;
      --sky: #dff4f0;
      --shadow: 0 14px 38px rgba(25, 69, 61, .08);
      --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: 0 auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(245,248,247,.94); border-bottom: 1px solid rgba(220,231,228,.85); backdrop-filter: blur(14px); }
    .nav-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { width: 40px; max-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: 9px 10px; color: #425b59; text-decoration: none; font-size: 13px; border-radius: 5px; transition: color .2s, background .2s; }
    .nav-links a:hover { color: var(--green-dark); background: #e5f3ed; }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border: 0; border-radius: 5px; background: var(--green); color: #fff; font-weight: 700; text-decoration: none; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s; }
    .nav-cta:hover, .button:hover { background: var(--green-dark); box-shadow: 0 8px 20px rgba(8,124,104,.2); transform: translateY(-2px); }
    .nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 5px; color: var(--ink); background: #fff; cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 78px 0 60px; background: #e9f5f0; border-bottom: 1px solid #d9e9e3; }
    .hero::before { position: absolute; content: ""; width: 380px; height: 380px; border: 1px solid rgba(8,124,104,.12); border-radius: 50%; right: -90px; top: -170px; box-shadow: 0 0 0 38px rgba(8,124,104,.035), 0 0 0 78px rgba(8,124,104,.025); }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,.72fr); gap: 56px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: .04em; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--coral); }
    h1 { max-width: 680px; margin: 17px 0 18px; font-size: clamp(40px, 5vw, 68px); line-height: 1.08; letter-spacing: 0; }
    .hero-copy { max-width: 620px; margin: 0; color: #48615f; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; }
    .button.secondary { background: #fff; color: var(--green-dark); border: 1px solid #b9d5cb; }
    .button.secondary:hover { background: #f7fffb; }
    .hero-note { margin-top: 19px; color: #55716c; font-size: 13px; }
    .hero-art { position: relative; min-height: 300px; display: grid; align-content: center; gap: 14px; }
    .hero-art::before { content: ""; position: absolute; inset: 15px 8px 15px 20px; border: 1px solid rgba(8,124,104,.2); border-radius: 48% 52% 43% 57%; transform: rotate(-8deg); }
    .signal { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 14px; max-width: 365px; padding: 16px 18px; border: 1px solid #cde2da; background: rgba(255,255,255,.88); box-shadow: var(--shadow); animation: rise .7s both; }
    .signal:nth-child(2) { margin-left: 34px; animation-delay: .12s; }
    .signal:nth-child(3) { margin-left: 66px; animation-delay: .24s; }
    .signal strong { display: block; font-size: 15px; }
    .signal small { color: var(--muted); }
    .signal-mark { display: grid; place-items: center; width: 42px; height: 42px; flex: 0 0 auto; border-radius: 50%; background: var(--mint); color: #31520c; font-weight: 900; }
    .metric-strip { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 42px; border-top: 1px solid #cfe1da; }
    .metric { padding: 20px 12px 0 0; }
    .metric strong { display: block; color: var(--green-dark); font-size: 22px; }
    .metric span { color: var(--muted); font-size: 13px; }
    main { overflow: hidden; }
    .section { padding: 78px 0; }
    .section.alt { background: #edf4f1; border-block: 1px solid #e0eae6; }
    .section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
    .section-heading h2 { max-width: 690px; margin: 8px 0 0; font-size: clamp(28px, 3vw, 40px); line-height: 1.2; }
    .section-heading p { max-width: 420px; margin: 0; color: var(--muted); }
    .kicker { color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .intro-copy { color: #4f6563; font-size: 17px; }
    .intro-copy p { margin: 0 0 16px; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span { padding: 7px 11px; border: 1px solid #cce0d8; border-radius: 3px; background: #fff; color: #355653; font-size: 13px; }
    .capabilities { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .capability { min-height: 190px; padding: 22px; background: #fff; border: 1px solid var(--line); transition: transform .22s, box-shadow .22s; }
    .capability:hover, .quote:hover, .case-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
    .capability .index { color: var(--coral); font-size: 12px; font-weight: 800; }
    .capability h3 { margin: 12px 0 8px; font-size: 19px; }
    .capability p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 46px; align-items: start; }
    .service-aside { padding-top: 6px; }
    .service-aside p { color: var(--muted); }
    .text-link { color: var(--green-dark); font-weight: 750; text-decoration-thickness: 1px; text-underline-offset: 4px; }
    .service-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 0 28px; border-top: 1px solid var(--line); }
    .service-item { padding: 17px 0; border-bottom: 1px solid var(--line); }
    .service-item h3 { margin: 0 0 5px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; counter-reset: step; }
    .step { position: relative; padding: 10px 22px 12px 0; counter-increment: step; }
    .step::before { content: "0" counter(step); display: block; margin-bottom: 18px; color: var(--green); font-size: 28px; font-weight: 800; }
    .step:not(:last-child)::after { content: ""; position: absolute; top: 28px; left: 58px; right: 18px; border-top: 1px solid #b9d5cb; }
    .step h3 { margin: 0 0 8px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: #cfe0da; border: 1px solid #cfe0da; }
    .industry { padding: 20px; background: #fff; }
    .industry strong { display: block; margin-bottom: 6px; }
    .industry span { color: var(--muted); font-size: 13px; }
    .timeline { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
    .timeline article { padding-top: 16px; border-top: 3px solid var(--mint); }
    .timeline h3 { margin: 0 0 8px; font-size: 18px; }
    .timeline p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
    .case-item { overflow: hidden; background: #fff; border: 1px solid var(--line); transition: transform .22s, box-shadow .22s; }
    .case-item img { display: block; width: 100%; aspect-ratio: 16/9; object-fit: cover; }
    .case-caption { padding: 16px 18px 19px; }
    .case-caption span { color: var(--green); font-size: 12px; font-weight: 800; }
    .case-caption h3 { margin: 5px 0 0; font-size: 17px; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 15px 17px; border-bottom: 1px solid #e6eeeb; }
    th { background: #e8f3ee; color: #294c45; font-size: 13px; }
    td { color: #475e5b; font-size: 14px; }
    td:first-child { color: var(--ink); font-weight: 700; }
    tr:last-child td { border-bottom: 0; }
    .rating { display: flex; align-items: center; gap: 17px; margin-bottom: 24px; }
    .rating strong { color: var(--green-dark); font-size: 32px; }
    .rating span { color: #bb7a1c; letter-spacing: 2px; }
    .match-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; padding: 32px; background: #dff1e9; border-left: 5px solid var(--green); }
    .match-panel h2 { margin: 0 0 12px; font-size: 29px; line-height: 1.25; }
    .match-panel p { margin: 0; color: #49645d; }
    .match-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .match-tags span { padding: 6px 10px; background: #fff; color: #31564b; font-size: 12px; }
    .price-row { display: grid; grid-template-columns: 1fr auto; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
    .price-row:last-child { border: 0; }
    .price-row strong { display: block; }
    .price-row span { color: var(--muted); font-size: 13px; }
    .price-row a { align-self: center; color: var(--green-dark); font-weight: 750; text-decoration: none; }
    .quotes { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .quote { padding: 20px; border: 1px solid var(--line); background: #fff; transition: transform .22s, box-shadow .22s; }
    .quote p { margin: 0 0 17px; color: #425a57; font-size: 14px; }
    .quote strong { display: block; font-size: 14px; }
    .quote span { color: var(--muted); font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 18px 42px 18px 0; cursor: pointer; list-style: none; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; top: 14px; right: 4px; color: var(--green); font-size: 23px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: 0; padding: 0 40px 18px 0; color: var(--muted); font-size: 14px; }
    .article-links { display: grid; grid-template-columns: repeat(2,1fr); gap: 0 28px; border-top: 1px solid var(--line); }
    .article-links a { display: flex; justify-content: space-between; gap: 12px; padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
    .article-links a::after { content: "↗"; color: var(--green); }
    .contact-band { background: #dff1e9; border-block: 1px solid #cde4da; }
    .contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 48px; align-items: start; }
    .contact-details p { color: #49645d; }
    .contact-details a { color: var(--green-dark); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #35524c; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 12px 13px; border: 1px solid #bad4c9; border-radius: 3px; background: #fff; color: var(--ink); outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(8,124,104,.1); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-submit { margin-top: 15px; }
    .partner-links { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 22px; }
    .partner-links a { color: #365c53; font-size: 13px; text-decoration: none; }
    .partner-links a:hover { text-decoration: underline; }
    .site-footer { padding: 25px 0; background: #e7efec; color: #344e49; border-top: 1px solid #d4e1dc; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
    .footer-row p { margin: 0; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
    .footer-links a { color: #345a50; font-size: 13px; text-decoration: none; }
    .floating-contact { position: fixed; z-index: 30; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .floating-contact a { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid #c8ded5; border-radius: 50%; background: #fff; color: var(--green-dark); text-decoration: none; font-size: 12px; font-weight: 800; box-shadow: 0 6px 20px rgba(22,59,51,.12); }
    .floating-contact a:hover { background: var(--mint); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
    @media (max-width: 940px) {
      .nav-toggle { display: inline-grid; place-items: center; }
      .nav-cta { display: none; }
      .nav-links { display: none; position: absolute; top: 74px; left: 0; right: 0; padding: 12px 20px 18px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 12px 20px rgba(25,69,61,.07); }
      .nav-links.open { display: grid; grid-template-columns: repeat(2,1fr); }
      .nav-links a { padding: 11px; }
      .hero-inner { grid-template-columns: 1fr .8fr; gap: 28px; }
      .capabilities { grid-template-columns: repeat(2,1fr); }
      .industry-grid { grid-template-columns: repeat(2,1fr); }
      .quotes { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .hero { padding: 54px 0 38px; }
      .hero-inner, .intro-grid, .service-layout, .match-panel, .contact-grid { grid-template-columns: 1fr; }
      .hero-inner { gap: 20px; }
      .hero-art { min-height: 230px; }
      .signal { max-width: 100%; }
      .signal:nth-child(2) { margin-left: 18px; }
      .signal:nth-child(3) { margin-left: 36px; }
      .metric-strip { grid-template-columns: repeat(2,1fr); row-gap: 16px; }
      .section { padding: 56px 0; }
      .section-heading { display: block; }
      .section-heading p { margin-top: 12px; }
      .capabilities, .service-list, .timeline, .case-grid, .quotes, .article-links { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: repeat(2,1fr); row-gap: 24px; }
      .step:nth-child(2)::after { display: none; }
      .industry-grid { grid-template-columns: 1fr 1fr; }
      .match-panel { padding: 24px 20px; gap: 20px; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .floating-contact { right: 12px; bottom: 12px; }
      .floating-contact a { width: 44px; height: 44px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }