:root {
      color-scheme: light;
      --ink: #17221f;
      --muted: #586560;
      --paper: #f8f9f5;
      --white: #fff;
      --line: #dce4dc;
      --green: #b7f34a;
      --coral: #ff6959;
      --blue: #bfe9ff;
      --yellow: #ffd970;
      --dark: #18362e;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    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; }
    img { max-width: 100%; height: auto; }
    button, input, select, textarea { font: inherit; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky; top: 0; z-index: 20;
      background: rgba(248,249,245,.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: 10px; text-decoration: none; font-weight: 850; white-space: nowrap; }
    .brand img { width: 42px; height: 42px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 10px 9px; color: #35443e; text-decoration: none; font-size: 13px; font-weight: 650; }
    .nav-links a:hover { color: #16734e; }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 46px; padding: 0 18px; border: 1px solid var(--ink); border-radius: 4px;
      background: var(--green); color: var(--ink); text-decoration: none; font-weight: 800;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
    }
    .nav-cta { white-space: nowrap; min-height: 40px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 4px 4px 0 var(--ink); }
    .button-dark { background: var(--dark); color: #fff; border-color: var(--dark); }
    .button-light { background: #fff; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 4px; }
    .hero { padding: 64px 0 42px; overflow: hidden; }
    .hero-shell { position: relative; padding: clamp(30px, 6vw, 74px); border: 1px solid var(--ink); background: var(--green); }
    .hero-shell::before, .hero-shell::after { content: ""; position: absolute; pointer-events: none; }
    .hero-shell::before { width: 190px; height: 190px; right: 5%; top: 11%; border: 1px solid rgba(23,34,31,.4); border-radius: 50%; box-shadow: 0 0 0 24px rgba(255,255,255,.12), 0 0 0 48px rgba(255,255,255,.1); }
    .hero-shell::after { width: 84px; height: 84px; right: 18%; bottom: 12%; background: var(--coral); transform: rotate(18deg); border: 1px solid var(--ink); }
    .hero-copy { position: relative; z-index: 1; max-width: 680px; }
    .eyebrow { margin: 0 0 14px; font-size: 12px; font-weight: 850; letter-spacing: 1.4px; text-transform: uppercase; }
    h1 { max-width: 680px; margin: 0; font-size: clamp(38px, 7vw, 76px); line-height: 1.05; letter-spacing: 0; }
    .hero-lead { max-width: 600px; margin: 22px 0 28px; font-size: 18px; color: #283831; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin: 22px 0 0; color: #34443b; font-size: 13px; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-top: 0; background: #fff; }
    .metric { padding: 20px 22px; border-right: 1px solid var(--line); }
    .metric:last-child { border: 0; }
    .metric strong { display: block; font-size: 20px; line-height: 1.3; }
    .metric span { display: block; margin-top: 5px; color: var(--muted); font-size: 13px; }
    .section { padding: 72px 0; }
    .section-tint { background: #edf3ea; border-block: 1px solid var(--line); }
    .section-dark { background: var(--dark); color: #f5f8f1; }
    .section-dark .section-intro, .section-dark .muted { color: #d2dfd7; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
    .section-head h2 { margin: 0; max-width: 650px; font-size: clamp(28px, 4vw, 42px); line-height: 1.15; }
    .section-intro { max-width: 600px; margin: 12px 0 0; color: var(--muted); }
    .kicker { display: inline-block; margin-bottom: 9px; color: #39734e; font-size: 12px; font-weight: 850; letter-spacing: 1.3px; }
    .section-dark .kicker { color: var(--green); }
    .about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: start; }
    .about-copy p { margin: 0 0 15px; color: var(--muted); }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 20px; margin: 4px 0 0; padding: 0; list-style: none; }
    .capability-list li { padding: 12px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
    .capability-list li::before { content: "↗"; margin-right: 10px; color: #398250; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-card { min-height: 180px; padding: 22px; background: #fff; border: 1px solid var(--line); transition: transform .2s ease, box-shadow .2s ease; }
    .service-card:hover, .review:hover { transform: translateY(-4px); box-shadow: 5px 5px 0 rgba(23,34,31,.13); }
    .service-card .index { color: #477450; font-size: 12px; font-weight: 850; }
    .service-card h3 { margin: 13px 0 8px; font-size: 19px; }
    .service-card p { margin: 0; color: var(--muted); font-size: 14px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: steps; }
    .workflow article { position: relative; padding: 22px 20px 16px 0; border-top: 2px solid #709163; counter-increment: steps; }
    .workflow article::before { content: "0" counter(steps); display: block; margin-bottom: 20px; color: #709163; font-size: 13px; font-weight: 850; }
    .workflow h3 { margin: 0 0 8px; font-size: 18px; }
    .workflow p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-row { display: flex; flex-wrap: wrap; gap: 9px; }
    .industry-row span { padding: 9px 13px; background: #fff; border: 1px solid var(--line); font-size: 14px; font-weight: 650; }
    .service-network { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; align-items: center; }
    .network-stat { padding: 24px; background: var(--yellow); border: 1px solid var(--ink); }
    .network-stat strong { display: block; font-size: 24px; }
    .network-stat p { margin: 8px 0 0; }
    .timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .timeline article { padding-top: 16px; border-top: 3px solid var(--coral); }
    .timeline h3 { margin: 0 0 7px; font-size: 18px; }
    .timeline p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .case-item { display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: 20px; padding: 16px; background: #fff; border: 1px solid var(--line); }
    .case-item .media { background: #e8eee7; aspect-ratio: 4 / 3; display: grid; place-items: center; overflow: hidden; }
    .case-item .media img { width: 100%; height: 100%; object-fit: cover; }
    .case-item h3 { margin: 0 0 8px; font-size: 19px; }
    .case-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .compare-wrap { overflow-x: auto; border: 1px solid #526a5d; }
    .compare { width: 100%; min-width: 720px; border-collapse: collapse; background: #fff; color: var(--ink); }
    .compare th, .compare td { padding: 13px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
    .compare thead th { background: var(--green); font-size: 14px; }
    .compare tbody th { width: 22%; background: #f2f5ef; }
    .score { display: inline-block; margin: 0 0 16px; padding: 13px 18px; background: var(--yellow); color: var(--ink); border: 1px solid var(--ink); font-weight: 850; }
    .score b { font-size: 24px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 20px; background: #fff; border: 1px solid var(--line); transition: transform .2s ease, box-shadow .2s ease; }
    .review blockquote { margin: 0; color: #34423c; font-size: 14px; }
    .review footer { margin-top: 14px; color: #53705b; font-size: 13px; font-weight: 750; }
    .price-band { display: grid; grid-template-columns: .8fr 1.2fr; gap: 35px; align-items: center; padding: 28px; background: var(--blue); border: 1px solid var(--ink); }
    .price-band h2 { margin: 0; font-size: 28px; }
    .price-band p { margin: 8px 0 0; color: #384c53; }
    .price-band .button { justify-self: start; }
    .model-list { margin: 0; color: #34453f; font-size: 14px; }
    .match-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 45px; align-items: start; }
    .match-copy h2 { margin: 0 0 14px; font-size: 34px; line-height: 1.2; }
    .match-copy p { color: var(--muted); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #bac7bd; border-radius: 3px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid #7aa94d; outline-offset: 1px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 17px 36px 17px 0; cursor: pointer; font-weight: 750; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 5px; top: 13px; font-size: 22px; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 850px; margin: 0; padding: 0 36px 18px 0; color: var(--muted); }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-list a { display: flex; min-height: 105px; flex-direction: column; justify-content: space-between; padding: 16px; background: #fff; border: 1px solid var(--line); text-decoration: none; font-weight: 750; }
    .article-list a span { color: #55805e; font-size: 12px; }
    .article-list a:hover { border-color: #628d67; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
    .contact-details { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .contact-details div { padding: 14px; border: 1px solid #557167; }
    .contact-details strong { display: block; color: var(--green); font-size: 13px; }
    .contact-details span, .contact-details a { display: inline-block; margin-top: 5px; color: #f2f5f1; }
    .qr { width: 116px; margin-top: 14px; padding: 7px; background: #fff; }
    .qr img { display: block; width: 100%; }
    .affiliate { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; padding: 22px 0 0; border-top: 1px solid #557167; }
    .affiliate p { max-width: 670px; margin: 0; color: #d2dfd7; }
    .site-footer { padding: 28px 0; background: #122a24; color: #eff4ed; }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
    .footer-row p { margin: 0; font-size: 13px; color: #d2dfd7; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 14px; }
    .footer-links a { color: #eff4ed; font-size: 13px; }
    .float-tools { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .float-tools a { display: grid; place-items: center; width: 46px; height: 46px; background: var(--green); border: 1px solid var(--ink); border-radius: 50%; color: var(--ink); text-decoration: none; font-weight: 850; box-shadow: 2px 2px 0 var(--ink); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 960px) {
      .nav-row { flex-wrap: wrap; padding-block: 10px; }
      .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
      .nav-cta { margin-left: 0; }
      .nav-links { display: none; order: 3; width: 100%; justify-content: flex-start; padding: 8px 0; border-top: 1px solid var(--line); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding-inline: 10px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .article-list { grid-template-columns: repeat(3, 1fr); }
      .hero-shell::before { right: 2%; }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .nav-row { gap: 10px; }
      .brand img { width: 36px; height: 36px; }
      .brand { font-size: 14px; }
      .nav-cta { min-height: 38px; padding-inline: 12px; font-size: 13px; }
      .nav-links a { padding: 9px 8px; font-size: 13px; }
      .hero { padding-top: 24px; }
      .hero-shell { padding: 34px 23px; }
      .hero-shell::before { width: 110px; height: 110px; top: auto; bottom: 10%; right: 6%; }
      .hero-shell::after { width: 46px; height: 46px; right: 20%; bottom: 17%; }
      .hero-copy { max-width: 100%; }
      .hero-lead { max-width: 95%; font-size: 16px; }
      .metric-strip { grid-template-columns: 1fr 1fr; }
      .metric { border-bottom: 1px solid var(--line); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(3), .metric:nth-child(4) { border-bottom: 0; }
      .section { padding: 52px 0; }
      .section-head { display: block; }
      .about-grid, .service-network, .match-grid, .contact-grid, .price-band { grid-template-columns: 1fr; gap: 24px; }
      .capability-list { grid-template-columns: 1fr 1fr; gap: 0 12px; }
      .service-grid, .review-grid { grid-template-columns: 1fr; }
      .service-card { min-height: 0; }
      .workflow { grid-template-columns: 1fr 1fr; gap: 14px; }
      .timeline { grid-template-columns: 1fr; gap: 20px; }
      .case-grid { grid-template-columns: 1fr; }
      .case-item { grid-template-columns: 1fr; }
      .case-item .media { aspect-ratio: 16 / 9; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .form-grid, .contact-details { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools a { width: 42px; height: 42px; }
    }