:root {
      color-scheme: light;
      --ink: #172520;
      --muted: #59665f;
      --paper: #f7f8f5;
      --white: #fff;
      --line: #dfe5df;
      --green: #b9f45b;
      --green-dark: #224f31;
      --coral: #ff684d;
      --blue: #315ed8;
      --yellow: #ffd75d;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", 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; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky; top: 0; z-index: 20;
      background: rgba(247,248,245,.94); border-bottom: 1px solid rgba(23,37,32,.1);
      backdrop-filter: blur(14px);
    }
    .nav-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 800; }
    .brand img { display: block; width: 40px; height: 40px; object-fit: contain; }
    .brand-name { font-size: 17px; line-height: 1.2; }
    .brand-name small { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; font-weight: 600; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 9px 10px; color: #435149; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: #168344; }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 9px;
      padding: 12px 18px; border: 0; border-radius: 5px; background: var(--ink); color: #fff;
      font-size: 14px; font-weight: 750; cursor: pointer; transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta { margin-left: 12px; padding: 10px 14px; background: var(--green); color: var(--ink); }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(23,37,32,.14); }
    .button-green { background: var(--green); color: var(--ink); }
    .button-outline { background: transparent; color: var(--ink); border: 1px solid #aab6ad; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: #fff; color: var(--ink); cursor: pointer; }
    .menu-toggle span, .menu-toggle::before, .menu-toggle::after { display: block; width: 17px; height: 2px; margin: 4px auto; background: currentColor; content: ""; }
    .hero { overflow: hidden; position: relative; padding: 78px 0 42px; background: var(--green); }
    .hero::after {
      position: absolute; right: max(3%, calc((100vw - var(--container))/2)); top: 42px; width: 300px; height: 300px;
      border: 1px solid rgba(23,37,32,.2); border-radius: 50%; content: ""; pointer-events: none;
      box-shadow: 0 0 0 30px rgba(255,255,255,.11), 0 0 0 60px rgba(255,255,255,.08);
    }
    .hero-inner { position: relative; z-index: 1; max-width: 850px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
    .eyebrow::before { width: 8px; height: 8px; border-radius: 50%; background: var(--coral); content: ""; }
    h1 { max-width: 760px; margin: 18px 0 16px; font-size: clamp(42px, 7vw, 76px); line-height: 1.03; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 0; color: #314439; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
    .hero-actions .button-outline { border-color: rgba(23,37,32,.4); }
    .hero-note { margin-top: 21px; color: #43574a; font-size: 13px; }
    .hero-note strong { color: var(--ink); }
    .hero-strip { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 54px; border-top: 1px solid rgba(23,37,32,.22); }
    .metric { padding: 19px 18px 0 0; }
    .metric strong { display: block; font-size: 20px; line-height: 1.25; }
    .metric span { color: #43574a; font-size: 12px; }
    .section { padding: 76px 0; }
    .section-white { background: var(--white); }
    .section-dark { background: #172520; color: #f5f8f3; }
    .section-dark .section-lead, .section-dark .muted { color: #b9c4bb; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 31px; }
    .kicker { margin: 0 0 7px; color: #327346; font-size: 12px; font-weight: 850; text-transform: uppercase; }
    h2 { margin: 0; font-size: clamp(29px, 4vw, 43px); line-height: 1.15; letter-spacing: 0; }
    h3 { margin: 0; font-size: 19px; line-height: 1.35; letter-spacing: 0; }
    .section-lead { max-width: 600px; margin: 11px 0 0; color: var(--muted); }
    .text-link { color: #276c3e; font-weight: 750; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
    .intro-copy { max-width: 610px; color: var(--muted); }
    .intro-copy p:first-child { margin-top: 0; }
    .capability-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 25px; border-top: 1px solid var(--line); }
    .capability-list div { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .capability-list strong { display: block; font-size: 14px; }
    .capability-list span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .service-card { min-height: 160px; padding: 20px; border: 1px solid var(--line); background: #fff; transition: transform .22s, box-shadow .22s; }
    .service-card:hover { transform: translateY(-4px); box-shadow: 0 12px 26px rgba(23,37,32,.08); }
    .service-card:nth-child(3n+2) { background: #f3f8e9; }
    .service-card .tag { display: inline-block; margin-bottom: 12px; color: #286d3e; font-size: 11px; font-weight: 800; }
    .service-card p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 34px; border-top: 1px solid #52605a; }
    .step { position: relative; padding: 22px 22px 0 0; }
    .step:not(:last-child)::after { position: absolute; top: 31px; right: 16px; width: 22px; height: 1px; background: var(--green); content: ""; }
    .step-num { display: block; margin-bottom: 15px; color: var(--green); font-size: 13px; font-weight: 800; }
    .step p { margin: 8px 0 0; color: #b9c4bb; font-size: 13px; }
    .scenario-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 42px; }
    .scenario { display: grid; grid-template-columns: 138px 1fr; gap: 18px; padding: 19px 0; border-bottom: 1px solid var(--line); }
    .scenario strong { font-size: 14px; }
    .scenario p { margin: 0; color: var(--muted); font-size: 13px; }
    .media-row { display: grid; grid-template-columns: 1.3fr .7fr; gap: 18px; margin-top: 28px; }
    .media-frame { overflow: hidden; background: #edf0eb; }
    .media-frame img { display: block; width: 100%; height: auto; }
    .media-caption { padding: 11px 0 0; color: var(--muted); font-size: 12px; }
    .compare-wrap { overflow-x: auto; border: 1px solid #dce4dc; background: white; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 15px 17px; border-bottom: 1px solid #e4e9e4; vertical-align: top; font-size: 13px; }
    th { background: #edf4e7; color: #244a30; font-size: 12px; }
    td:first-child { font-weight: 750; }
    .rating-band { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 25px; background: var(--green); }
    .rating-score { font-size: 29px; font-weight: 900; line-height: 1.15; }
    .rating-score small { display: block; margin-top: 3px; font-size: 12px; font-weight: 650; }
    .stars { color: #b34a26; font-size: 19px; letter-spacing: 2px; }
    .rating-band p { margin: 0; max-width: 520px; font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .case { padding: 22px; border-top: 3px solid var(--coral); background: #fff; }
    .case:nth-child(2) { border-color: var(--blue); }
    .case:nth-child(3) { border-color: #80ad39; }
    .case p { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
    .reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .review { padding: 20px; border: 1px solid #3b4942; background: #202e27; }
    .review blockquote { margin: 0; color: #eef3ee; font-size: 14px; }
    .review footer { margin-top: 17px; color: var(--green); font-size: 12px; font-weight: 750; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 23px; }
    .model-cloud span { padding: 7px 11px; border: 1px solid #4b5b51; color: #e8eee8; font-size: 12px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; align-items: start; }
    .match-aside { padding-top: 7px; }
    .match-aside p { color: var(--muted); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #cbd5cc; border-radius: 3px; padding: 11px 12px; background: #fff; color: var(--ink); outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: #32834e; box-shadow: 0 0 0 3px rgba(50,131,78,.12); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-note { grid-column: 1 / -1; margin: -3px 0 0; 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: 17px 38px 17px 0; font-weight: 750; cursor: pointer; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { position: absolute; right: 5px; top: 16px; color: #34804a; font-size: 20px; content: "+"; transition: transform .2s; }
    details[open] summary::after { transform: rotate(45deg); }
    details p { max-width: 820px; margin: -3px 0 18px; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-item { padding: 16px; border: 1px solid var(--line); background: #fff; }
    .article-item span { display: block; margin-bottom: 8px; color: #347346; font-size: 11px; font-weight: 800; }
    .article-item strong { display: block; font-size: 14px; line-height: 1.45; }
    .article-item small { display: block; margin-top: 10px; color: var(--muted); font-size: 11px; }
    .footer-main { padding: 40px 0 25px; background: #e9eee8; color: var(--ink); }
    .footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 30px; }
    .footer-grid p, .footer-grid li { color: #4e5c53; font-size: 13px; }
    .footer-grid ul { margin: 10px 0 0; padding: 0; list-style: none; }
    .footer-grid li { margin: 5px 0; }
    .footer-bottom { padding: 14px 0; border-top: 1px solid #d2dbd2; background: #e9eee8; color: #4e5c53; font-size: 12px; }
    .footer-bottom-row { display: flex; justify-content: space-between; gap: 16px; }
    .friend-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
    .friend-links a { color: #345d3e; }
    .qr { width: 116px; margin-top: 10px; border: 4px solid white; }
    .float-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .float-contact a { display: grid; place-items: center; min-width: 48px; min-height: 48px; padding: 8px; border: 1px solid #d7e0d7; background: #fff; color: var(--ink); box-shadow: 0 4px 16px rgba(23,37,32,.12); font-size: 11px; font-weight: 750; }
    .float-contact a:first-child { background: var(--green); }
    .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: 980px) {
      .nav-links { gap: 0; }
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-cta { margin-left: 6px; }
      .brand-name small { display: none; }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 66px; }
      .menu-toggle { display: block; flex: 0 0 auto; }
      .nav-links {
        display: none; position: absolute; top: 65px; left: 0; right: 0; padding: 10px 16px 16px;
        border-bottom: 1px solid var(--line); background: var(--paper); align-items: stretch; flex-direction: column;
      }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 8px; font-size: 14px; }
      .nav-cta { margin: 8px 0 0; text-align: center; }
      .hero { padding: 57px 0 30px; }
      .hero::after { right: -176px; top: 17px; width: 260px; height: 260px; }
      h1 { max-width: 560px; font-size: 48px; }
      .hero-copy { font-size: 15px; }
      .hero-strip { grid-template-columns: 1fr 1fr; margin-top: 38px; }
      .metric { padding: 15px 12px 0 0; }
      .section { padding: 57px 0; }
      .section-head { display: block; }
      .section-head > .text-link { display: inline-block; margin-top: 15px; }
      .intro-grid, .match-layout { grid-template-columns: 1fr; gap: 26px; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .workflow { grid-template-columns: 1fr 1fr; row-gap: 20px; }
      .step:not(:last-child)::after { display: none; }
      .scenario-grid { grid-template-columns: 1fr; }
      .media-row { grid-template-columns: 1fr; }
      .case-grid, .reviews-grid { grid-template-columns: 1fr 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .footer-grid > :first-child { grid-column: 1 / -1; }
      .rating-band { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 480px) {
      h1 { font-size: 42px; }
      .service-grid, .case-grid, .reviews-grid, .article-list { grid-template-columns: 1fr; }
      .capability-list { grid-template-columns: 1fr; }
      .scenario { grid-template-columns: 1fr; gap: 4px; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full, .form-note { grid-column: auto; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-grid > :first-child { grid-column: auto; }
      .footer-bottom-row { flex-direction: column; }
      .hero-actions .button { width: 100%; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { min-width: 43px; min-height: 43px; }
    }