:root {
      color-scheme: light;
      --ink: #18352b;
      --muted: #60766c;
      --green: #147a59;
      --green-dark: #105b43;
      --mint: #dcf2e7;
      --pale: #f4faf6;
      --line: #d9e9df;
      --white: #fff;
      --lime: #d9f08a;
      --coral: #ef795d;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 82px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--pale);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, 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;
      z-index: 20;
      top: 0;
      background: rgba(248, 252, 249, .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: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .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 { text-decoration: none; color: #35594b; font-size: 13px; padding: 9px 10px; border-radius: 5px; }
    .nav-links a:hover, .nav-links a:focus-visible { background: var(--mint); color: var(--green-dark); }
    .nav-cta, .button {
      display: inline-flex;
      justify-content: center;
      align-items: center;
      gap: 8px;
      min-height: 46px;
      padding: 10px 19px;
      border: 1px solid var(--green);
      border-radius: 5px;
      color: white;
      background: var(--green);
      text-decoration: none;
      font-weight: 700;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta { white-space: nowrap; min-height: 40px; padding: 8px 14px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 18px rgba(16, 91, 67, .16); }
    .button.secondary { color: var(--green-dark); background: white; border-color: #a9ceba; }
    .button.secondary:hover { background: #eff9f2; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: white; color: var(--ink); border-radius: 5px; cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 72px 0 54px; background: #eaf7ef; border-bottom: 1px solid var(--line); }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0 0 auto auto;
      width: min(47vw, 600px);
      height: 100%;
      background: repeating-linear-gradient(135deg, transparent 0 26px, rgba(20, 122, 89, .055) 26px 27px);
      pointer-events: none;
    }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr); gap: 45px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--green-dark); text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: 0; }
    .eyebrow::before { content: ""; width: 23px; height: 2px; background: var(--coral); }
    h1 { max-width: 650px; margin: 17px 0 18px; font-size: clamp(36px, 5vw, 62px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 610px; margin: 0; color: #456257; font-size: 17px; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 27px; }
    .hero-note { margin-top: 16px; color: var(--muted); font-size: 13px; }
    .hero-visual { min-height: 280px; display: grid; align-content: center; gap: 14px; }
    .flow-window { padding: 22px; background: rgba(255,255,255,.87); border: 1px solid #c9e1d2; border-radius: 8px; box-shadow: 0 18px 45px rgba(30, 85, 58, .08); animation: rise .7s ease both; }
    .flow-head { display: flex; justify-content: space-between; gap: 15px; align-items: center; padding-bottom: 16px; border-bottom: 1px solid var(--line); font-weight: 800; }
    .live-mark { color: var(--green); font-size: 12px; display: inline-flex; align-items: center; gap: 7px; }
    .live-mark::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #5eaf78; box-shadow: 0 0 0 4px #e1f3e6; }
    .flow-track { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; padding-top: 18px; }
    .flow-node { min-height: 83px; padding: 12px 10px; background: #f3faf5; border-left: 3px solid #70b890; }
    .flow-node strong { display: block; font-size: 13px; }
    .flow-node span { color: var(--muted); font-size: 11px; }
    .flow-arrow { color: var(--green); font-size: 17px; text-align: center; margin-top: 7px; }
    .trust-strip { display: flex; justify-content: space-between; gap: 15px; flex-wrap: wrap; padding-top: 23px; color: #49685b; font-size: 13px; }
    .trust-strip span { display: inline-flex; align-items: center; gap: 8px; }
    .trust-strip span::before { content: "✓"; display: grid; place-items: center; width: 19px; height: 19px; border-radius: 50%; background: #d5efdf; color: var(--green-dark); font-weight: 800; }
    .stats { padding: 24px 0; background: #fff; border-bottom: 1px solid var(--line); }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
    .stat { padding: 5px 22px; border-right: 1px solid var(--line); }
    .stat:first-child { padding-left: 0; }
    .stat:last-child { border: 0; }
    .stat strong { display: block; color: var(--green-dark); font-size: 20px; }
    .stat span { color: var(--muted); font-size: 13px; }
    main { overflow: hidden; }
    .section { padding: 76px 0; }
    .section.white { background: #fff; }
    .section.tint { background: #edf7f0; }
    .section-head { max-width: 720px; margin-bottom: 31px; }
    .section-head h2 { margin: 8px 0 11px; font-size: 34px; line-height: 1.22; letter-spacing: 0; }
    .section-head p { margin: 0; color: var(--muted); }
    .section-kicker { color: var(--green); font-size: 12px; font-weight: 800; }
    .intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: start; }
    .intro-copy p { color: #526b60; margin: 0 0 16px; }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 20px; margin: 22px 0 0; padding: 0; list-style: none; }
    .capability-list li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .capability-list li::before { content: "↗"; margin-right: 9px; color: var(--green); font-weight: 800; }
    .aside-note { padding: 24px; border-left: 4px solid var(--lime); background: #f4fae9; }
    .aside-note strong { display: block; margin-bottom: 8px; }
    .aside-note p { margin: 0; color: #566b53; font-size: 14px; }
    .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
    .service-item { padding: 19px 17px; border: 1px solid var(--line); background: #fff; border-radius: 5px; transition: transform .22s ease, box-shadow .22s ease; }
    .service-item:hover { transform: translateY(-3px); box-shadow: 0 12px 24px rgba(26, 76, 51, .08); }
    .service-item h3 { margin: 0 0 7px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-item .index { display: block; margin-bottom: 11px; color: var(--green); font-size: 11px; font-weight: 800; }
    .production { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
    .production-lead { color: var(--muted); }
    .platforms { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 21px; }
    .platforms span { padding: 6px 10px; color: #315747; border: 1px solid #c5dfcf; background: #f6fbf7; font-size: 12px; border-radius: 3px; }
    .production-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; }
    .production-row { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .production-row strong { display: block; font-size: 15px; }
    .production-row span { color: var(--muted); font-size: 13px; }
    .solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .solution { padding: 21px; background: #fff; border-top: 3px solid #7dbb95; }
    .solution h3 { margin: 0 0 8px; font-size: 17px; }
    .solution p { margin: 0; color: var(--muted); font-size: 13px; }
    .network-band { padding: 25px 28px; background: var(--green-dark); color: #fff; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
    .network-band h3 { margin: 0 0 5px; font-size: 20px; }
    .network-band p { margin: 0; color: #d1e9dc; font-size: 14px; }
    .network-band a { flex: 0 0 auto; color: var(--green-dark); background: var(--lime); border-color: var(--lime); }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: process; }
    .step { position: relative; padding: 0 16px 0 0; counter-increment: process; }
    .step::before { content: "0" counter(process); display: block; margin-bottom: 12px; color: var(--green); font-size: 13px; font-weight: 800; }
    .step:not(:last-child)::after { content: ""; position: absolute; top: 10px; left: 38px; right: 10px; height: 1px; background: #bad9c5; }
    .step h3 { margin: 0 0 6px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
    .case { overflow: hidden; background: white; border: 1px solid var(--line); }
    .case-media { background: #e7f3eb; aspect-ratio: 16 / 9; display: grid; place-items: center; overflow: hidden; }
    .case-media img { width: 100%; height: 100%; object-fit: cover; }
    .case-info { padding: 16px 18px 19px; }
    .case-info span { color: var(--green); font-size: 11px; font-weight: 800; }
    .case-info h3 { margin: 5px 0; font-size: 17px; }
    .case-info p { margin: 0; color: var(--muted); font-size: 13px; }
    .review-score { display: flex; justify-content: space-between; align-items: center; gap: 22px; margin-bottom: 22px; padding: 23px 26px; background: #e8f5ec; border-left: 4px solid var(--green); }
    .review-score strong { display: block; font-size: 27px; }
    .review-score p { margin: 3px 0 0; color: var(--muted); }
    .stars { color: #b46e19; font-size: 20px; letter-spacing: 0; white-space: nowrap; }
    .table-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: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #f1f8f3; font-size: 13px; }
    td { color: #526b60; font-size: 13px; }
    td:first-child { color: var(--ink); font-weight: 700; }
    .good { color: var(--green-dark); font-weight: 700; }
    .match-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 46px; align-items: start; }
    .match-points { padding: 0; margin: 20px 0 0; list-style: none; }
    .match-points li { padding: 9px 0; border-bottom: 1px solid var(--line); color: #496458; }
    .match-points li::before { content: "✓"; margin-right: 10px; color: var(--green); font-weight: 800; }
    .form-panel { padding: 25px; background: #fff; border: 1px solid var(--line); }
    .form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #c9ddd0; border-radius: 3px; color: var(--ink); background: #fbfdfb; outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(20, 122, 89, .1); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-actions { display: flex; align-items: center; gap: 15px; flex-wrap: wrap; margin-top: 17px; }
    .form-note { color: var(--muted); font-size: 12px; }
    .price-layout { display: grid; grid-template-columns: 1fr .75fr; gap: 32px; align-items: start; }
    .price-callout { padding: 22px; border: 1px solid #b9d8c5; background: #eff8f1; }
    .price-callout h3 { margin: 0 0 8px; }
    .price-callout p { margin: 0 0 16px; color: var(--muted); font-size: 14px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 21px; }
    .tag-cloud span { padding: 7px 12px; color: #355b49; border: 1px solid #c5dfcf; border-radius: 20px; background: #fff; font-size: 12px; }
    .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; list-style: none; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; top: 12px; color: var(--green); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 25px 17px 0; color: var(--muted); font-size: 14px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
    .review { padding: 18px; background: white; border: 1px solid var(--line); }
    .review p { margin: 0 0 15px; color: #496458; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-link { min-height: 79px; padding: 14px; display: flex; align-items: center; justify-content: space-between; gap: 10px; text-decoration: none; color: var(--ink); border: 1px solid var(--line); background: #fff; font-size: 13px; font-weight: 700; }
    .article-link::after { content: "↗"; color: var(--green); }
    .article-link:hover { border-color: #82b99a; }
    .timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid #b8d7c3; }
    .timeline-item { padding: 20px 20px 0 0; }
    .timeline-item strong { display: block; margin-bottom: 6px; }
    .timeline-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 22px; align-items: start; }
    .contact-block h3 { margin: 0 0 8px; font-size: 16px; }
    .contact-block p { margin: 5px 0; color: var(--muted); font-size: 14px; }
    .contact-block a { color: var(--green-dark); }
    .qr-box { width: 148px; padding: 8px; background: white; border: 1px solid var(--line); }
    .qr-box img { display: block; width: 100%; }
    .footer { padding: 27px 0; color: #d9e9df; background: #173c2e; }
    .footer-row { display: flex; justify-content: space-between; align-items: start; gap: 24px; }
    .footer p { margin: 4px 0; font-size: 12px; color: #c3d8cb; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: flex-end; }
    .footer-links a { color: #e5f3e9; font-size: 12px; text-decoration: none; }
    .footer-links a:hover { text-decoration: underline; }
    .floating-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; }
    .floating-contact a { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; color: white; background: var(--green); border: 2px solid white; box-shadow: 0 6px 18px rgba(17, 72, 49, .22); text-decoration: none; font-size: 12px; font-weight: 800; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
    @media (max-width: 1050px) {
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-row { gap: 10px; }
      .nav-cta { padding-inline: 10px; }
      .service-grid { grid-template-columns: repeat(3, 1fr); }
      .articles { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 64px; }
      .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
      .nav-cta { display: none; }
      .nav-links { display: none; position: absolute; top: 63px; left: 0; right: 0; padding: 8px 16px 15px; background: #f8fcf9; border-bottom: 1px solid var(--line); box-shadow: 0 12px 16px rgba(27, 68, 48, .07); }
      .nav-links.open { display: grid; grid-template-columns: repeat(2, 1fr); }
      .nav-links a { padding: 10px; font-size: 13px; }
      .hero { padding: 53px 0 36px; }
      .hero-inner, .intro-grid, .production, .match-grid, .price-layout { grid-template-columns: 1fr; gap: 27px; }
      .hero-visual { min-height: 0; }
      .hero-copy { font-size: 16px; }
      .trust-strip { justify-content: flex-start; }
      .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 14px 0; }
      .stat { padding: 3px 13px; }
      .stat:nth-child(2) { border-right: 0; }
      .stat:nth-child(odd) { padding-left: 0; }
      .section { padding: 55px 0; }
      .section-head h2 { font-size: 29px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .solution-grid { grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: repeat(2, 1fr); gap: 23px 14px; }
      .step:nth-child(2)::after { display: none; }
      .case-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
      .articles { grid-template-columns: repeat(2, 1fr); }
      .contact-grid { grid-template-columns: 1fr 1fr; }
      .network-band { align-items: flex-start; flex-direction: column; }
      .footer-row { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
    }
    @media (max-width: 480px) {
      .brand img { width: 36px; max-height: 36px; }
      h1 { font-size: 37px; }
      .hero-actions .button { flex: 1 1 100%; }
      .flow-window { padding: 17px; }
      .flow-track { gap: 6px; }
      .flow-node { padding: 10px 7px; min-height: 79px; }
      .flow-node strong { font-size: 12px; }
      .service-grid, .solution-grid, .production-list, .case-grid, .review-grid, .articles, .contact-grid, .timeline { grid-template-columns: 1fr; }
      .capability-list { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .review-score { align-items: flex-start; flex-direction: column; }
      .steps { grid-template-columns: 1fr 1fr; }
      .step::after { display: none; }
      .floating-contact { right: 12px; bottom: 12px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }