:root {
      color-scheme: light;
      --ink: #18352b;
      --muted: #5f756b;
      --green: #16845d;
      --green-dark: #0c6244;
      --mint: #e6f5ec;
      --paper: #f7fbf8;
      --line: #d9e9df;
      --white: #fff;
      --coral: #d96e50;
      --gold: #b47a20;
      --shadow: 0 18px 48px rgba(25, 76, 52, .09);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    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; z-index: 20; top: 0; background: rgba(247,251,248,.94); border-bottom: 1px solid rgba(217,233,223,.85); backdrop-filter: blur(12px); }
    .nav-bar { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); }
    .brand img { display: block; width: 42px; height: 42px; object-fit: contain; }
    .brand span { font-size: 17px; }
    .nav-links { display: flex; gap: 0; align-items: center; justify-content: flex-end; flex-wrap: wrap; }
    .nav-links a { padding: 8px 9px; color: #405b4d; font-size: 12px; border-radius: 6px; transition: background .2s, color .2s; }
    .nav-links a:hover, .nav-links a:focus-visible { background: var(--mint); color: var(--green-dark); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; gap: 8px; padding: 11px 19px; border: 1px solid var(--green); border-radius: 6px; background: var(--green); color: #fff; font-weight: 700; transition: transform .2s, box-shadow .2s, background .2s; }
    .nav-cta { flex: 0 0 auto; min-height: 40px; padding: 8px 14px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 10px 24px rgba(22,132,93,.2); }
    .button.secondary { background: transparent; color: var(--green-dark); }
    .button.secondary:hover { background: var(--mint); box-shadow: none; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 78px 0 62px; background: linear-gradient(135deg, #eaf8ef 0%, #f8fcf9 56%, #e1f3e9 100%); }
    .hero::before { position: absolute; right: -100px; top: -210px; width: 490px; height: 490px; content: ""; border: 1px solid rgba(22,132,93,.12); border-radius: 50%; box-shadow: 0 0 0 36px rgba(22,132,93,.035), 0 0 0 72px rgba(22,132,93,.025); }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0,1.2fr) minmax(270px,.8fr); align-items: center; gap: 58px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
    .eyebrow::before { width: 22px; height: 2px; content: ""; background: var(--coral); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 680px; margin: 15px 0 18px; font-size: clamp(38px, 5.4vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 640px; margin-bottom: 26px; color: #4d6659; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-footnote { margin: 19px 0 0; color: #60776b; font-size: 13px; }
    .hero-console { position: relative; padding: 25px; border: 1px solid rgba(22,132,93,.17); border-radius: 8px; background: rgba(255,255,255,.82); box-shadow: var(--shadow); animation: rise .7s ease both; }
    .console-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
    .console-title { font-size: 14px; font-weight: 800; }
    .console-status { display: inline-flex; align-items: center; gap: 7px; color: var(--green-dark); font-size: 12px; }
    .console-status::before { width: 7px; height: 7px; content: ""; border-radius: 50%; background: #3eaf70; }
    .matrix-input { margin: 19px 0 14px; padding: 13px 15px; border: 1px solid #dcece1; border-radius: 6px; background: #f6fbf7; color: #587065; font-size: 13px; }
    .matrix-output { display: grid; gap: 9px; }
    .matrix-row { display: flex; align-items: flex-start; gap: 10px; padding: 10px 11px; border: 1px solid #edf3ef; border-radius: 5px; background: #fff; font-size: 12px; }
    .matrix-index { flex: 0 0 auto; display: grid; width: 22px; height: 22px; place-items: center; border-radius: 50%; background: var(--mint); color: var(--green-dark); font-weight: 800; }
    .matrix-row strong { display: block; margin-bottom: 1px; color: #264b39; }
    .console-note { margin: 14px 0 0; color: var(--muted); font-size: 11px; }
    .metrics { position: relative; display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; margin-top: 46px; border: 1px solid var(--line); background: var(--line); }
    .metric { padding: 19px 22px; background: rgba(255,255,255,.8); }
    .metric strong { display: block; color: var(--green-dark); font-size: 18px; }
    .metric span { color: var(--muted); font-size: 12px; }
    .section { padding: 76px 0; }
    .section.alt { background: #eef7f1; border-block: 1px solid #e1eee5; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 31px; }
    .section-head > div { max-width: 720px; }
    .section-kicker { margin-bottom: 8px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
    h2 { margin-bottom: 9px; font-size: clamp(27px, 3.3vw, 39px); line-height: 1.22; letter-spacing: 0; }
    .section-intro { max-width: 710px; margin-bottom: 0; color: var(--muted); }
    .text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--green-dark); font-size: 14px; font-weight: 800; white-space: nowrap; }
    .about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 52px; align-items: center; }
    .about-copy p { color: #536d60; }
    .about-copy .lead { color: var(--ink); font-size: 19px; font-weight: 650; }
    .about-image { overflow: hidden; border-radius: 7px; background: #e6f4e9; }
    .about-image img { display: block; width: 100%; height: auto; max-width: 100%; object-fit: contain; }
    .inline-points { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px 20px; margin: 23px 0 0; padding: 0; list-style: none; }
    .inline-points li { display: flex; align-items: flex-start; gap: 9px; color: #385646; font-size: 14px; }
    .inline-points li::before { content: "✓"; color: var(--green); font-weight: 900; }
    .service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 15px; }
    .service-item { min-height: 174px; padding: 20px; border: 1px solid var(--line); border-top: 3px solid #74bd91; background: #fff; transition: transform .22s, box-shadow .22s; }
    .service-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
    .service-item h3 { margin: 0 0 8px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
    .tag-cloud span { padding: 6px 11px; border: 1px solid #cfe4d5; border-radius: 3px; background: #f8fcf9; color: #41644e; font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; counter-reset: steps; }
    .step { position: relative; padding: 23px 20px 20px 0; border-top: 1px solid #bcd8c5; counter-increment: steps; }
    .step::before { display: grid; width: 34px; height: 34px; margin-top: -41px; margin-bottom: 19px; place-items: center; border: 1px solid #84bd95; border-radius: 50%; background: var(--paper); color: var(--green-dark); content: counter(steps, decimal-leading-zero); font-size: 11px; font-weight: 800; }
    .step h3 { margin: 0 0 7px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
    .solution { padding: 22px; border-left: 3px solid var(--coral); background: #fff; }
    .solution h3 { margin: 0 0 8px; font-size: 17px; }
    .solution p { margin: 0; color: var(--muted); font-size: 13px; }
    .image-strip { display: grid; grid-template-columns: 1fr 1fr .68fr; gap: 15px; margin-top: 28px; }
    .image-strip figure { margin: 0; overflow: hidden; background: #e8f2eb; }
    .image-strip img { display: block; width: 100%; height: auto; max-width: 100%; aspect-ratio: 16 / 9; object-fit: contain; }
    .image-strip figure:last-child img { aspect-ratio: 1; }
    .image-strip figcaption { padding: 10px 12px; color: #486354; font-size: 12px; }
    .compare-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    .compare-table { width: 100%; min-width: 700px; border-collapse: collapse; text-align: left; }
    .compare-table th, .compare-table td { padding: 15px 17px; border-bottom: 1px solid #e8f0eb; vertical-align: top; }
    .compare-table th { background: #eaf6ee; color: #31583e; font-size: 13px; }
    .compare-table td { color: #53695d; font-size: 13px; }
    .compare-table td:first-child { color: var(--ink); font-weight: 700; }
    .score-panel { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 19px; padding: 20px 24px; border-left: 4px solid var(--green); background: #e5f4e9; }
    .score-panel strong { font-size: 20px; }
    .score { color: var(--gold); font-size: 18px; font-weight: 900; }
    .score small { color: #546c5f; font-size: 13px; font-weight: 600; }
    .rating-note { margin: 12px 0 0; color: #6c7e73; font-size: 11px; }
    .reference-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: start; }
    .price-table { width: 100%; border-collapse: collapse; background: #fff; }
    .price-table th, .price-table td { padding: 12px 14px; border-bottom: 1px solid #e5eee8; text-align: left; font-size: 13px; }
    .price-table th { color: #31583e; background: #eaf6ee; }
    .price-table td { color: #53695d; }
    .reference-note { margin: 10px 0 0; color: #72847a; font-size: 11px; }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .review { padding: 19px; border: 1px solid var(--line); background: #fff; }
    .review blockquote { margin: 0 0 15px; color: #3b5748; font-size: 14px; }
    .review footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #64796d; font-size: 12px; }
    .review footer strong { color: var(--ink); }
    .case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 15px; }
    .case { padding: 21px; border: 1px solid #d8e9de; background: #f8fcf9; }
    .case-label { color: var(--coral); font-size: 11px; font-weight: 800; letter-spacing: .08em; }
    .case h3 { margin: 7px 0; font-size: 17px; }
    .case p { margin: 0; color: var(--muted); font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    details.faq { border-bottom: 1px solid var(--line); }
    .faq summary { position: relative; padding: 17px 40px 17px 0; cursor: pointer; color: #244a35; font-size: 15px; font-weight: 700; list-style: none; }
    .faq summary::-webkit-details-marker { display: none; }
    .faq summary::after { position: absolute; right: 4px; top: 15px; content: "+"; color: var(--green); font-size: 22px; font-weight: 400; transition: transform .2s; }
    .faq[open] summary::after { transform: rotate(45deg); }
    .faq p { max-width: 850px; margin: -3px 0 18px; color: var(--muted); font-size: 14px; }
    .article-list { border-top: 1px solid var(--line); }
    .article-row { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; padding: 14px 2px; border-bottom: 1px solid var(--line); }
    .article-row a { color: #2d4a38; font-size: 14px; font-weight: 650; }
    .article-row a:hover { color: var(--green); }
    .article-row span { color: #819087; font-size: 12px; }
    .join-band { padding: 30px; background: #deefe4; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
    .join-band h3 { margin: 0 0 5px; font-size: 21px; }
    .join-band p { margin: 0; color: #597165; font-size: 13px; }
    .contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 42px; align-items: start; }
    .contact-info { display: grid; gap: 13px; }
    .contact-line { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .contact-line strong { display: block; margin-bottom: 3px; color: #244a35; font-size: 13px; }
    .contact-line a, .contact-line span { color: #5b7265; font-size: 14px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 23px; border: 1px solid var(--line); background: #fff; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #395847; font-size: 12px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid #d6e5db; border-radius: 4px; outline: none; background: #fbfdfb; color: var(--ink); }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(22,132,93,.09); }
    .field textarea { min-height: 112px; resize: vertical; }
    .contact-form .button { justify-self: start; cursor: pointer; }
    .service-network { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; align-items: center; }
    .network-map { min-height: 205px; display: grid; place-items: center; border: 1px solid #cde2d3; background: linear-gradient(135deg,#e4f4e9,#f7fbf8); }
    .network-map span { max-width: 280px; padding: 20px; text-align: center; color: #31583e; font-size: 17px; font-weight: 800; }
    .network-points { display: grid; gap: 12px; }
    .network-points p { margin: 0; padding-bottom: 11px; border-bottom: 1px solid var(--line); color: #526c5e; font-size: 14px; }
    .footer { padding: 32px 0 24px; background: #e7f2ea; color: #294736; border-top: 1px solid #d6e7da; }
    .footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; padding-bottom: 20px; border-bottom: 1px solid #d0e2d5; }
    .footer-brand p { max-width: 480px; margin: 9px 0 0; color: #5c7264; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 17px; max-width: 520px; }
    .footer-links a { color: #496353; font-size: 12px; }
    .footer-links a:hover { color: var(--green-dark); text-decoration: underline; }
    .copyright { display: flex; justify-content: space-between; gap: 15px; padding-top: 16px; color: #667c6d; font-size: 11px; }
    .float-tools { position: fixed; z-index: 15; right: 16px; bottom: 18px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid #cfe3d5; border-radius: 50%; background: #fff; color: var(--green-dark); box-shadow: 0 7px 20px rgba(25,76,52,.12); cursor: pointer; font-size: 11px; font-weight: 800; }
    .float-tools a:hover, .float-tools button:hover { background: var(--mint); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } to { 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: 1050px) {
      .nav-links a { padding-inline: 6px; font-size: 11px; }
      .nav-cta { display: none; }
      .hero-inner { gap: 32px; }
    }
    @media (max-width: 820px) {
      .menu-toggle { display: grid; place-items: center; }
      .nav-bar { position: relative; }
      .nav-links { display: none; position: absolute; top: calc(100% - 1px); left: 0; right: 0; align-items: stretch; padding: 10px; border: 1px solid var(--line); background: #f8fcf9; box-shadow: var(--shadow); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3,1fr); }
      .nav-links a { padding: 9px 8px; font-size: 12px; }
      .hero { padding-top: 56px; }
      .hero-inner, .about-grid, .contact-grid { grid-template-columns: 1fr; }
      .hero-inner { gap: 34px; }
      .hero-console { max-width: 560px; }
      .metrics { grid-template-columns: repeat(2,1fr); }
      .service-grid, .solution-grid, .case-grid { grid-template-columns: repeat(2,1fr); }
      .review-grid { grid-template-columns: repeat(2,1fr); }
      .workflow { grid-template-columns: repeat(2,1fr); column-gap: 20px; row-gap: 22px; }
      .reference-grid { grid-template-columns: 1fr; }
      .about-grid { gap: 28px; }
    }
    @media (max-width: 560px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .nav-bar { min-height: 66px; }
      .brand img { width: 36px; height: 36px; }
      .brand span { font-size: 15px; }
      .nav-links.open { grid-template-columns: repeat(2,1fr); }
      .hero { padding: 43px 0 38px; }
      h1 { font-size: 39px; }
      .hero-copy { font-size: 15px; }
      .hero-console { padding: 18px; }
      .metrics { margin-top: 30px; }
      .metric { padding: 15px; }
      .section { padding: 55px 0; }
      .section-head { align-items: flex-start; flex-direction: column; gap: 8px; margin-bottom: 23px; }
      .service-grid, .solution-grid, .case-grid, .review-grid { grid-template-columns: 1fr; }
      .service-item { min-height: 0; }
      .inline-points { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr; gap: 14px; padding-left: 13px; }
      .step { margin-left: 8px; padding: 0 0 6px 24px; border-top: 0; border-left: 1px solid #bcd8c5; }
      .step::before { position: absolute; top: 0; left: -18px; margin: 0; }
      .image-strip { grid-template-columns: 1fr 1fr; }
      .image-strip figure:last-child { grid-column: 1 / -1; max-width: 60%; }
      .score-panel { align-items: flex-start; flex-direction: column; }
      .join-band, .footer-top, .copyright { align-items: flex-start; flex-direction: column; }
      .join-band { padding: 23px 19px; }
      .footer-links { justify-content: flex-start; }
      .contact-form { grid-template-columns: 1fr; padding: 17px; }
      .field.full { grid-column: auto; }
      .service-network { grid-template-columns: 1fr; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools a, .float-tools button { width: 42px; height: 42px; }
    }