:root {
      color-scheme: light;
      --ink: #1c2925;
      --muted: #596760;
      --paper: #f8f9f5;
      --white: #fff;
      --line: #dfe5dc;
      --green: #126b50;
      --green-dark: #0c4f3d;
      --lime: #d4f36b;
      --coral: #ff795f;
      --blue: #9bd9ec;
      --yellow: #f6d675;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    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; }
    .topbar { position: sticky; top: 0; z-index: 20; background: rgba(248,249,245,.96); border-bottom: 1px solid rgba(28,41,37,.1); backdrop-filter: blur(14px); }
    .nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .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; }
    .brand span { font-size: 17px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 9px 10px; color: #42514b; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--green); }
    .nav-cta, .button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border: 0; background: var(--green); color: white; font-weight: 750; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
    .nav-cta { flex: 0 0 auto; min-height: 40px; padding: 8px 15px; font-size: 13px; }
    .button:hover, .nav-cta:hover { background: var(--green-dark); box-shadow: 0 8px 22px rgba(18,107,80,.2); transform: translateY(-2px); }
    .button.secondary { color: var(--ink); background: white; border: 1px solid var(--line); }
    .button.secondary:hover { background: #f0f6ea; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: white; color: var(--ink); cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 84px 0 66px; background: #e9f3e8; border-bottom: 1px solid #d7e5d8; }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border: 1px solid rgba(18,107,80,.15); border-radius: 50%; }
    .hero::before { width: 470px; height: 470px; top: -270px; right: 3%; }
    .hero::after { width: 340px; height: 340px; top: -205px; right: 9%; }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,.72fr); align-items: center; gap: 48px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: .4px; }
    .eyebrow::before { content: ""; width: 8px; height: 8px; background: var(--coral); border-radius: 50%; }
    h1 { max-width: 690px; margin: 17px 0 18px; font-size: clamp(42px, 6vw, 70px); line-height: 1.08; letter-spacing: 0; }
    .hero-copy { max-width: 610px; margin: 0; color: #46564f; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin-top: 16px; color: #52645b; font-size: 13px; }
    .hero-art { position: relative; min-height: 288px; display: grid; place-items: center; }
    .orbit { width: min(100%, 330px); aspect-ratio: 1; position: relative; border: 1px solid rgba(18,107,80,.28); border-radius: 50%; display: grid; place-items: center; animation: float 7s ease-in-out infinite; }
    .orbit::before, .orbit::after { content: ""; position: absolute; border: 1px solid rgba(18,107,80,.2); border-radius: 50%; }
    .orbit::before { inset: 11%; }
    .orbit::after { inset: 24%; }
    .core { width: 118px; aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: var(--green); color: white; font-size: 18px; font-weight: 850; box-shadow: 0 15px 40px rgba(18,107,80,.2); }
    .orbit-label { position: absolute; z-index: 1; padding: 8px 12px; border: 1px solid rgba(18,107,80,.18); background: #f8fff4; color: var(--green-dark); font-size: 13px; font-weight: 750; }
    .orbit-label.one { top: 12%; left: 5%; }
    .orbit-label.two { top: 19%; right: 0; background: #fff1dc; }
    .orbit-label.three { bottom: 15%; right: 5%; background: #e9f7fb; }
    .orbit-label.four { bottom: 12%; left: 0; background: #fff0ec; }
    .metrics { position: relative; z-index: 2; margin-top: 42px; display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid rgba(18,107,80,.2); }
    .metric { padding: 19px 16px 0 0; }
    .metric strong { display: block; font-size: 20px; line-height: 1.3; }
    .metric span { color: #54645b; font-size: 12px; }
    main { overflow: hidden; }
    .section { padding: 76px 0; }
    .section.tint { background: #f0f4ec; border-block: 1px solid #e3e9df; }
    .section.dark { background: #174e3e; color: white; }
    .section.dark .section-intro, .section.dark .eyebrow { color: #d2e8d4; }
    .section-head { max-width: 740px; margin-bottom: 32px; }
    .section-head h2 { margin: 8px 0 10px; font-size: clamp(28px,4vw,42px); line-height: 1.2; letter-spacing: 0; }
    .section-intro { margin: 0; color: var(--muted); }
    .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
    .about-copy p { margin: 0 0 15px; color: #495851; }
    .feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; padding: 0; margin: 8px 0 0; list-style: none; }
    .feature-list li { padding: 13px 0; border-bottom: 1px solid var(--line); }
    .feature-list b { display: block; margin-bottom: 3px; font-size: 14px; }
    .feature-list span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .service { min-height: 170px; padding: 20px; background: white; border-top: 3px solid var(--lime); box-shadow: 0 5px 18px rgba(27,52,41,.045); transition: transform .2s ease, box-shadow .2s ease; }
    .service:nth-child(3n+2) { border-color: var(--coral); }
    .service:nth-child(3n) { border-color: var(--blue); }
    .service:hover, .review:hover, .case:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(27,52,41,.1); }
    .service h3 { margin: 0 0 7px; font-size: 17px; }
    .service p { margin: 0; color: var(--muted); font-size: 13px; }
    .service .tagline { display: inline-block; margin-top: 12px; color: var(--green); font-size: 12px; font-weight: 750; }
    .platforms { margin-top: 30px; padding: 20px 0; border-block: 1px solid var(--line); }
    .platforms h3 { margin: 0 0 13px; font-size: 15px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud span { padding: 6px 10px; border: 1px solid #dce5d9; background: #fbfcf9; color: #44534b; font-size: 12px; }
    .steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; counter-reset: step; }
    .step { position: relative; padding: 18px 22px 15px 0; border-top: 1px solid #a9b9ae; counter-increment: step; }
    .step::before { content: "0" counter(step); display: block; margin-bottom: 16px; color: var(--coral); font-size: 13px; font-weight: 850; }
    .step h3 { margin: 0 0 6px; font-size: 17px; }
    .step p { max-width: 230px; margin: 0; color: var(--muted); font-size: 13px; }
    .workflow-band { margin-top: 34px; padding: 22px; background: #e7f4e7; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 22px; }
    .workflow-band strong { font-size: 17px; }
    .workflow-band p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
    .solutions { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: start; }
    .solution-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
    .solution-list div { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .solution-list strong { display: block; font-size: 15px; }
    .solution-list span { color: var(--muted); font-size: 13px; }
    .network { padding: 24px; background: #dff0e4; border-left: 4px solid var(--green); }
    .network h3 { margin: 0 0 10px; font-size: 20px; }
    .network p { margin: 0 0 16px; color: #45574d; font-size: 14px; }
    .network-points { display: flex; flex-wrap: wrap; gap: 8px; }
    .network-points span { padding: 6px 9px; background: white; color: #325844; font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
    .case { padding: 20px; background: white; border: 1px solid var(--line); transition: .2s ease; }
    .case-mark { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
    .case-mark strong { color: var(--green); font-size: 13px; }
    .case-mark span { color: #7a8981; font-size: 12px; }
    .case h3 { margin: 0 0 7px; font-size: 18px; }
    .case p { margin: 0; color: var(--muted); font-size: 13px; }
    .comparison { overflow-x: auto; border: 1px solid #d9e3d8; background: white; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 16px; border-bottom: 1px solid #e8ede6; vertical-align: top; font-size: 13px; }
    th { background: #eef5eb; color: #25372f; font-weight: 800; }
    td:first-child { width: 19%; font-weight: 750; }
    .rating { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 22px; margin-bottom: 20px; padding: 20px 24px; background: #e8f4df; }
    .rating-score { color: var(--green-dark); font-size: 38px; font-weight: 850; line-height: 1; }
    .rating-score small { font-size: 14px; font-weight: 600; }
    .stars { color: #a56800; font-size: 21px; letter-spacing: 0; }
    .rating p { margin: 4px 0 0; color: #43534a; font-size: 13px; }
    .reviews { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
    .review { padding: 18px; background: white; border: 1px solid var(--line); transition: .2s ease; }
    .review p { margin: 0 0 15px; color: #405047; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: #718077; font-size: 12px; }
    .articles { display: grid; grid-template-columns: repeat(5,1fr); gap: 10px; }
    .article { min-height: 104px; padding: 15px; border: 1px solid var(--line); background: white; display: flex; flex-direction: column; justify-content: space-between; transition: .2s ease; }
    .article:hover { border-color: #9abea3; transform: translateY(-3px); }
    .article span { color: var(--green); font-size: 11px; font-weight: 750; }
    .article strong { font-size: 13px; line-height: 1.5; }
    .price-row { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; align-items: center; padding: 24px 0; border-bottom: 1px solid var(--line); }
    .price-row h3 { margin: 0 0 6px; font-size: 18px; }
    .price-row p { margin: 0; color: var(--muted); font-size: 13px; }
    .price-note { padding: 16px 18px; background: #fff0d4; color: #514328; font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; font-weight: 750; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; top: 13px; right: 4px; color: var(--green); font-size: 23px; font-weight: 500; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: -3px 30px 17px 0; color: var(--muted); font-size: 14px; }
    .contact-grid { display: grid; grid-template-columns: 1fr .78fr; gap: 42px; align-items: start; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { color: #34443b; font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; border: 1px solid #d5dfd7; border-radius: 0; padding: 11px 12px; background: white; color: var(--ink); outline: none; }
    input:focus, select:focus, textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(18,107,80,.1); }
    textarea { min-height: 115px; resize: vertical; }
    .contact-info { padding-left: 24px; border-left: 1px solid var(--line); }
    .contact-info h3 { margin: 0 0 10px; font-size: 20px; }
    .contact-info p { margin: 7px 0; color: #495950; font-size: 14px; }
    .contact-info a { color: var(--green-dark); text-decoration: underline; text-underline-offset: 3px; }
    .qr { width: 138px; margin-top: 18px; padding: 7px; border: 1px solid var(--line); background: white; }
    .qr img { display: block; width: 100%; height: auto; }
    .partner-links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 20px; }
    .partner-links a { color: #43534b; font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
    .footer { padding: 24px 0; background: #e7ece5; color: #293a31; border-top: 1px solid #d8e0d7; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
    .footer p { margin: 0; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 12px; }
    .footer-links a { color: #344c3e; font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .float-contact a { width: 46px; height: 46px; display: grid; place-items: center; border: 1px solid #d4dfd5; background: white; color: var(--green-dark); box-shadow: 0 5px 18px rgba(22,49,34,.13); font-size: 12px; font-weight: 800; transition: transform .2s ease; }
    .float-contact a:hover { transform: translateY(-3px); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
    @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: 950px) {
      .nav { gap: 10px; }
      .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 18px rgba(25,40,31,.08); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3,1fr); }
      .nav-links a { padding: 10px; }
      .menu-toggle { display: inline-grid; place-items: center; order: 3; }
      .nav-cta { margin-left: auto; }
      .hero-inner { grid-template-columns: 1fr .75fr; gap: 22px; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .articles { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav { min-height: 66px; }
      .brand img { width: 34px; height: 34px; }
      .brand span { font-size: 15px; }
      .nav-links { top: 66px; }
      .nav-links.open { grid-template-columns: repeat(2,1fr); }
      .nav-cta { min-height: 38px; padding: 7px 11px; font-size: 12px; }
      .hero { padding: 57px 0 40px; }
      .hero-inner { grid-template-columns: 1fr; gap: 20px; }
      h1 { font-size: 45px; }
      .hero-copy { font-size: 15px; }
      .hero-art { min-height: 230px; }
      .orbit { width: 230px; }
      .core { width: 88px; font-size: 15px; }
      .orbit-label { padding: 6px 9px; font-size: 11px; }
      .metrics { grid-template-columns: repeat(2,1fr); row-gap: 18px; margin-top: 26px; }
      .metric { padding-top: 14px; }
      .section { padding: 54px 0; }
      .about-grid, .solutions, .contact-grid { grid-template-columns: 1fr; gap: 26px; }
      .feature-list, .solution-list { grid-template-columns: 1fr 1fr; gap: 0 12px; }
      .service-grid { grid-template-columns: 1fr; }
      .service { min-height: auto; }
      .steps { grid-template-columns: 1fr 1fr; gap: 16px; }
      .workflow-band { grid-template-columns: 1fr; }
      .case-grid, .reviews { grid-template-columns: 1fr; }
      .articles { grid-template-columns: 1fr 1fr; }
      .rating { grid-template-columns: 1fr; gap: 10px; }
      .price-row { grid-template-columns: 1fr; gap: 14px; }
      .contact-info { padding: 20px 0 0; border-left: 0; border-top: 1px solid var(--line); }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { width: 42px; height: 42px; }
    }
    @media (max-width: 390px) {
      .hero-actions .button { width: 100%; }
      .contact-form { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .feature-list, .solution-list { grid-template-columns: 1fr; }
    }