:root {
      color-scheme: light;
      --ink: #1d2b24;
      --muted: #58675e;
      --green: #197544;
      --green-dark: #105a35;
      --lime: #c8ed63;
      --mint: #e7f3e5;
      --paper: #f5f8f2;
      --line: #dce6db;
      --white: #fff;
      --coral: #e87958;
      --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: "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; }
    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(245,248,242,.96);
      border-bottom: 1px solid rgba(29,43,36,.1);
      backdrop-filter: blur(12px);
    }
    .header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; }
    .brand img { display: block; width: 40px; max-height: 40px; object-fit: contain; }
    .nav-area { display: flex; align-items: center; gap: 18px; }
    .nav-links { display: flex; align-items: center; gap: 0; }
    .nav-links a { padding: 10px 9px; color: #435249; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--green); }
    .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 10px 18px; border: 1px solid var(--green);
      border-radius: 5px; background: var(--green); color: white; font-weight: 700;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .button:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 20px rgba(25,117,68,.18); }
    .button-light { background: white; color: var(--green-dark); border-color: #b8d1bd; }
    .button-light:hover { background: var(--mint); color: var(--green-dark); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 5px; background: white; color: var(--ink); }
    .hero {
      position: relative; overflow: hidden;
      background: #e9f4e7;
      border-bottom: 1px solid #d6e8d4;
    }
    .hero::before {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(115deg, transparent 0 58%, rgba(200,237,99,.22) 58% 59%, transparent 59%),
        linear-gradient(25deg, transparent 0 78%, rgba(25,117,68,.08) 78% 78.3%, transparent 78.3%);
      pointer-events: none;
    }
    .hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 46px; padding-block: 82px 54px; }
    .eyebrow { margin: 0 0 16px; color: var(--green); font-size: 13px; font-weight: 800; letter-spacing: 1px; }
    h1 { max-width: 700px; margin: 0; font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 620px; margin: 22px 0 26px; color: #45564b; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-aside { padding: 24px 0 24px 28px; border-left: 1px solid #bcd3bd; }
    .hero-aside h2 { margin: 0 0 18px; font-size: 17px; }
    .hero-aside p { margin: 0; color: var(--muted); font-size: 14px; }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .hero-tags span { padding: 6px 10px; border: 1px solid #c7dcc6; border-radius: 3px; color: #315640; font-size: 12px; }
    .hero-stats { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #cddfca; border-top: 1px solid #cddfca; }
    .hero-stat { padding: 17px 12px; background: #eff6ec; text-align: center; }
    .hero-stat strong { display: block; color: var(--green-dark); font-size: 18px; }
    .hero-stat span { color: var(--muted); font-size: 12px; }
    .section { padding-block: 72px; }
    .section-tint { background: #edf4e9; border-block: 1px solid #e0e9dc; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
    .section-head > div { max-width: 700px; }
    .section-kicker { margin: 0 0 7px; color: var(--green); font-size: 12px; font-weight: 800; }
    h2 { margin: 0; font-size: 32px; line-height: 1.25; letter-spacing: 0; }
    .section-head p { max-width: 620px; margin: 10px 0 0; color: var(--muted); }
    h3 { margin: 0; font-size: 18px; line-height: 1.4; }
    .intro-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .intro-copy { color: var(--muted); }
    .intro-copy p:first-child { margin-top: 0; }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; 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: 1px; background: #dce6db; border: 1px solid #dce6db; }
    .service-item { min-height: 150px; padding: 22px; background: #fbfcf9; transition: background .2s ease; }
    .service-item:hover { background: #f0f8e9; }
    .service-item p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
    .service-item .index { display: block; margin-bottom: 12px; color: var(--green); font-size: 12px; font-weight: 800; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: steps; }
    .workflow article { position: relative; padding: 20px 18px 18px 0; border-top: 2px solid #7cae6d; counter-increment: steps; }
    .workflow article::before { content: "0" counter(steps); display: block; margin-bottom: 15px; color: var(--green); font-size: 13px; font-weight: 800; }
    .workflow p { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .industry-grid a { display: block; padding: 16px; border-left: 3px solid #76a94d; background: #fff; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; }
    .industry-grid a:hover { transform: translateY(-3px); box-shadow: 0 8px 18px rgba(30,65,39,.08); }
    .industry-grid span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; font-weight: 400; }
    .network { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; padding: 28px 0; border-block: 1px solid var(--line); }
    .network p { max-width: 720px; margin: 8px 0 0; color: var(--muted); }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 9px; }
    .model-cloud span { padding: 7px 11px; border: 1px solid #cbdcc7; background: #f8fbf5; color: #385443; font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .case-item { overflow: hidden; background: white; border-bottom: 2px solid #a4c96e; }
    .case-item .media { aspect-ratio: 16 / 9; overflow: hidden; background: #e9efe5; }
    .case-item img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
    .case-item:hover img { transform: scale(1.035); }
    .case-text { padding: 18px; }
    .case-text p { margin: 7px 0 0; color: var(--muted); font-size: 14px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 19px; border-top: 2px solid #b8d363; background: white; }
    .review p { margin: 0 0 15px; color: #435249; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .comparison { width: 100%; border-collapse: collapse; background: white; }
    .comparison th, .comparison td { padding: 14px 16px; border-bottom: 1px solid #e2e9df; text-align: left; vertical-align: top; }
    .comparison thead th { background: #e4f0dc; color: #244a30; }
    .comparison td:last-child { color: var(--green-dark); font-weight: 700; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); }
    .rating { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; }
    .rating strong { color: var(--green-dark); font-size: 36px; line-height: 1; }
    .rating span { color: #a45c14; letter-spacing: 0; }
    .rating small { display: block; color: var(--muted); }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 46px; align-items: start; }
    .match-copy p { color: var(--muted); }
    form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    label { color: #38493f; font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; padding: 12px; border: 1px solid #cbd8ca; border-radius: 3px; background: white; color: var(--ink); }
    input:focus, select:focus, textarea:focus { outline: 2px solid #91bd6b; outline-offset: 1px; }
    textarea { min-height: 120px; resize: vertical; }
    .form-submit { justify-self: start; }
    .faq-list { border-top: 1px solid #cbd8ca; }
    .faq-list details { border-bottom: 1px solid #cbd8ca; }
    .faq-list summary { position: relative; padding: 17px 36px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 12px; color: var(--green); font-size: 23px; font-weight: 400; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 820px; margin: 0 0 18px; color: var(--muted); }
    .article-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-links a { padding: 15px; border-bottom: 1px solid #90ad79; background: rgba(255,255,255,.62); color: #315640; font-size: 14px; }
    .article-links a:hover { background: white; }
    .info-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; }
    .info-layout p { color: var(--muted); }
    .info-layout ul { margin: 12px 0 0; padding-left: 19px; color: var(--muted); }
    .contact-box { display: grid; grid-template-columns: 1fr auto; gap: 26px; align-items: center; padding: 24px 0; border-top: 1px solid var(--line); }
    .contact-box p { margin: 6px 0; color: var(--muted); }
    .qr img { display: block; width: 132px; border: 5px solid white; }
    .links-inline { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 18px; }
    .links-inline a { color: #315640; font-size: 13px; text-decoration: underline; text-decoration-color: #b1c6a8; text-underline-offset: 3px; }
    .site-footer { padding: 24px 0; background: #e6eee2; color: #31443a; border-top: 1px solid #d4e0d0; font-size: 13px; }
    .footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
    .footer-inner p { margin: 0; }
    .floating { position: fixed; right: 18px; bottom: 18px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .floating a, .to-top { display: grid; place-items: center; min-width: 46px; min-height: 46px; padding: 7px 10px; border: 1px solid #b8d1bd; border-radius: 4px; background: white; color: var(--green-dark); box-shadow: 0 4px 16px rgba(26,58,35,.12); font-size: 12px; font-weight: 700; }
    .to-top { cursor: pointer; }
    .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) {
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-area { gap: 10px; }
      .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 10px 20px 16px; flex-direction: column; align-items: stretch; background: #f5f8f2; border-bottom: 1px solid var(--line); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 11px; }
      .hero-inner { gap: 25px; }
      .industry-grid { grid-template-columns: repeat(2, 1fr); }
      .article-links { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-inner { min-height: 64px; }
      .nav-links { top: 64px; }
      .header-cta { display: none; }
      .hero-inner { grid-template-columns: 1fr; gap: 26px; padding-block: 58px 32px; }
      h1 { font-size: 40px; }
      .hero-copy { font-size: 15px; }
      .hero-aside { padding: 18px 0 0; border-left: 0; border-top: 1px solid #bcd3bd; }
      .hero-stats { grid-template-columns: repeat(2, 1fr); }
      .section { padding-block: 52px; }
      .section-head { display: block; margin-bottom: 22px; }
      h2 { font-size: 27px; }
      .intro-layout, .match-layout, .info-layout { grid-template-columns: 1fr; gap: 24px; }
      .service-grid { grid-template-columns: 1fr; }
      .service-item { min-height: 0; }
      .workflow { grid-template-columns: repeat(2, 1fr); gap: 12px; }
      .industry-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
      .industry-grid a { padding: 12px; font-size: 14px; }
      .network { grid-template-columns: 1fr; gap: 20px; }
      .case-grid, .review-grid { grid-template-columns: 1fr; }
      .case-item .media { aspect-ratio: 16 / 9; }
      .article-links { grid-template-columns: 1fr 1fr; }
      form { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
      .contact-box { grid-template-columns: 1fr auto; gap: 14px; }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .floating { right: 10px; bottom: 10px; }
      .floating a, .to-top { min-width: 42px; min-height: 42px; }
    }