:root {
      color-scheme: light;
      --ink: #182321;
      --muted: #56635f;
      --paper: #f8f9f6;
      --white: #fff;
      --line: #dce3df;
      --green: #c8f169;
      --coral: #ff715b;
      --blue: #b8e5ef;
      --dark: #183c37;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Arial, "Noto Sans SC", "Microsoft YaHei", 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; top: 0; z-index: 20; background: rgba(248,249,246,.96); border-bottom: 1px solid var(--line); }
    .nav-row { min-height: 74px; 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: 800; white-space: nowrap; }
    .brand img { width: 38px; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 10px 11px; text-decoration: none; font-size: 13px; font-weight: 650; color: #3d4945; border-radius: 5px; transition: background .2s, color .2s; }
    .nav-links a:hover, .nav-links a:focus-visible { background: var(--green); color: var(--ink); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 12px 18px; border: 0; border-radius: 4px; background: var(--dark); color: #fff; font-weight: 750; text-decoration: none; cursor: pointer; transition: transform .2s, background .2s, box-shadow .2s; }
    .nav-cta:hover, .button:hover { transform: translateY(-2px); background: #24584f; box-shadow: 0 8px 20px rgba(24,60,55,.18); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: var(--white); color: var(--ink); font-size: 20px; cursor: pointer; }
    .hero { overflow: hidden; padding: 76px 0 52px; background: var(--green); }
    .hero-inner { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(250px, .8fr); align-items: center; gap: 44px; }
    .eyebrow { margin: 0 0 15px; color: #345048; font-size: 12px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
    h1 { max-width: 680px; margin: 0; font-size: clamp(38px, 5vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 620px; margin: 20px 0 26px; color: #33453e; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .button-light { background: var(--white); color: var(--ink); }
    .button-light:hover { background: #f0f4ed; }
    .hero-art { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 18px; border: 1px solid rgba(24,35,33,.2); background: rgba(255,255,255,.42); }
    .hero-art::before { content: ""; position: absolute; inset: 9px -9px -9px 9px; z-index: 0; border: 1px solid rgba(24,35,33,.24); pointer-events: none; }
    .model-tile { position: relative; z-index: 1; min-height: 104px; padding: 16px; background: var(--white); border-left: 4px solid var(--coral); }
    .model-tile:nth-child(2), .model-tile:nth-child(3) { border-left-color: var(--dark); }
    .model-tile strong { display: block; font-size: 18px; }
    .model-tile span { color: var(--muted); font-size: 12px; }
    .hero-note { grid-column: 1 / -1; position: relative; z-index: 1; margin: 0; padding: 12px 14px; background: var(--dark); color: #fff; font-size: 13px; }
    .ticker { padding: 15px 0; background: var(--dark); color: #fff; }
    .ticker-inner { display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 13px; }
    .ticker strong { color: var(--green); }
    main section { padding: 72px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
    .section-head h2 { max-width: 660px; margin: 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.2; letter-spacing: 0; }
    .section-head p { max-width: 480px; margin: 0; color: var(--muted); }
    .section-kicker { display: block; margin-bottom: 9px; color: #568171; font-size: 12px; font-weight: 800; }
    .intro-band { background: var(--white); }
    .intro-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: start; }
    .intro-lead { margin: 0; font-size: 21px; font-weight: 700; line-height: 1.55; }
    .intro-copy { margin: 14px 0 0; color: var(--muted); }
    .capability-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; margin: 0; padding: 0; list-style: none; }
    .capability-list li { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); }
    .capability-list b { flex: 0 0 auto; color: #4f7c6c; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
    .service-item { min-height: 158px; padding: 22px; background: var(--white); border: 1px solid var(--line); transition: transform .2s, border-color .2s, box-shadow .2s; }
    .service-item:hover { transform: translateY(-4px); border-color: #9caf9f; box-shadow: 0 12px 26px rgba(28,52,45,.08); }
    .service-item h3 { margin: 0 0 8px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-item.featured { background: var(--coral); border-color: var(--coral); }
    .service-item.featured p { color: #382d2a; }
    .service-item.featured .tag { background: rgba(255,255,255,.68); }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .tag { display: inline-block; padding: 5px 9px; background: #eef2ed; color: #374641; font-size: 12px; }
    .platforms { padding: 24px 0 0; }
    .platforms h3 { margin: 0 0 12px; font-size: 16px; }
    .platform-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .platform-tags span { padding: 6px 10px; background: #fff; border: 1px solid var(--line); color: #43514b; font-size: 12px; }
    .workflow { background: var(--blue); }
    .steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid #73939a; }
    .step { padding: 22px 20px 0 0; }
    .step-number { display: inline-block; margin-top: -15px; padding: 3px 9px; background: var(--coral); color: var(--ink); font-size: 12px; font-weight: 800; }
    .step h3 { margin: 14px 0 6px; font-size: 18px; }
    .step p { margin: 0; color: #3d5559; font-size: 14px; }
    .solutions { background: var(--white); }
    .solution-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: start; }
    .solution-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; }
    .solution-list article { padding: 16px 0; border-bottom: 1px solid var(--line); }
    .solution-list h3 { margin: 0 0 5px; font-size: 16px; }
    .solution-list p { margin: 0; color: var(--muted); font-size: 13px; }
    .contact-note { padding: 24px; background: var(--dark); color: #fff; }
    .contact-note h3 { margin: 0 0 10px; font-size: 22px; }
    .contact-note p { margin: 0 0 18px; color: #d7e5df; font-size: 14px; }
    .contact-note .button { background: var(--green); color: var(--ink); }
    .case-strip { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: center; }
    .case-copy { padding: 24px 0; }
    .case-copy h3 { margin: 0 0 10px; font-size: 25px; }
    .case-copy p { max-width: 590px; margin: 0; color: var(--muted); }
    .case-images { display: grid; grid-template-columns: 1.35fr .85fr; gap: 12px; align-items: start; }
    .case-images img { display: block; width: 100%; height: auto; border: 1px solid var(--line); background: #fff; }
    .review-section { background: #edf1ed; }
    .review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
    .review { padding: 20px; background: var(--white); border-top: 3px solid var(--coral); }
    .review p { margin: 0 0 16px; color: #394641; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .evaluation { display: grid; grid-template-columns: .72fr 1.28fr; gap: 34px; align-items: start; }
    .score-panel { padding: 26px; background: var(--coral); }
    .score-panel h3 { margin: 0 0 4px; font-size: 19px; }
    .score { margin: 5px 0; font-size: 54px; font-weight: 850; line-height: 1.1; }
    .stars { color: #183c37; font-size: 23px; letter-spacing: 0; }
    .score-panel p { margin: 9px 0 0; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; border-collapse: collapse; text-align: left; }
    th, td { min-width: 130px; padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 13px; }
    th { background: #eaf1ec; font-size: 12px; }
    td:first-child { font-weight: 750; }
    .faq-section { background: var(--white); }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 35px 17px 0; font-weight: 700; cursor: pointer; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; top: 12px; color: #517b6d; font-size: 23px; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 820px; margin: 0; padding: 0 30px 18px 0; color: var(--muted); font-size: 14px; }
    .contact-section { background: var(--green); }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .contact-info h2 { margin: 0 0 12px; font-size: 36px; line-height: 1.2; }
    .contact-info > p { margin: 0 0 20px; color: #3d5146; }
    .contact-lines { margin: 0; padding: 0; list-style: none; }
    .contact-lines li { padding: 8px 0; border-bottom: 1px solid rgba(24,35,33,.16); font-size: 14px; }
    .contact-lines a { font-weight: 700; }
    .qr-wrap { width: 126px; margin-top: 17px; padding: 8px; background: #fff; }
    .qr-wrap img { display: block; width: 100%; height: auto; }
    .form-panel { padding: 24px; background: #fff; }
    .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: 700; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid #cbd5ce; border-radius: 2px; background: #fbfcfa; color: var(--ink); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-panel .button { margin-top: 15px; }
    .site-footer { padding: 28px 0; background: #183c37; color: #f3f7f4; }
    .footer-top { display: flex; align-items: start; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
    .footer-top p { max-width: 430px; margin: 8px 0 0; color: #d0ddd6; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; max-width: 540px; }
    .footer-links a { color: #e3f0e9; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { color: var(--green); }
    .copyright { margin: 20px 0 0; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.2); color: #d0ddd6; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 22px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .float-contact a, .to-top { display: grid; place-items: center; width: 46px; height: 46px; border: 0; border-radius: 50%; background: var(--coral); color: var(--ink); font-size: 13px; font-weight: 800; text-decoration: none; box-shadow: 0 5px 16px rgba(24,35,33,.18); cursor: pointer; }
    .to-top { background: var(--dark); color: #fff; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: none; }
    @media (max-width: 900px) {
      .nav-row { gap: 10px; }
      .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
      .nav-cta { padding: 10px 12px; font-size: 13px; }
      .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); align-items: stretch; }
      .nav-links.open { display: flex; flex-direction: column; }
      .nav-links a { padding: 10px 8px; }
      .hero-inner, .intro-grid, .solution-layout, .case-strip, .evaluation, .contact-grid { grid-template-columns: 1fr; }
      .hero-inner { gap: 32px; }
      .hero-art { max-width: 580px; }
      .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 24px; }
      .step:nth-child(3) { border-top: 1px solid #73939a; }
      .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .section-head { align-items: start; flex-direction: column; }
    }
    @media (max-width: 600px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav-row { min-height: 66px; }
      .brand img { width: 32px; }
      .nav-links { top: 66px; }
      .hero { padding: 54px 0 38px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 15px; }
      main section { padding: 52px 0; }
      .service-grid, .solution-list, .capability-list, .review-grid { grid-template-columns: 1fr; }
      .service-item { min-height: 0; }
      .steps { grid-template-columns: 1fr; }
      .step, .step:nth-child(3) { padding: 18px 0; border-top: 1px solid #73939a; }
      .step-number { margin-top: 0; }
      .hero-art { gap: 8px; padding: 12px; }
      .model-tile { min-height: 90px; padding: 12px; }
      .case-images { grid-template-columns: 1fr 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .form-panel { padding: 18px; }
      .ticker-inner { justify-content: flex-start; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a, .to-top { width: 42px; height: 42px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }