:root {
      color-scheme: light;
      --ink: #172b2a;
      --muted: #5e706d;
      --paper: #f7f9f7;
      --white: #fff;
      --line: #dce6e1;
      --green: #087d67;
      --green-dark: #075e51;
      --mint: #d9f2e8;
      --coral: #f4a18e;
      --yellow: #f2cf69;
      --blue: #9ccde8;
      --lavender: #c2b4e8;
      --container: 1160px;
      --shadow: 0 12px 30px rgba(23, 43, 42, .08);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    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; }
    img { max-width: 100%; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky; inset: 0 0 auto; z-index: 20;
      background: rgba(247, 249, 247, .94);
      border-bottom: 1px solid rgba(220, 230, 225, .9);
      backdrop-filter: blur(12px);
    }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; flex: 0 0 auto; gap: 10px; font-weight: 800; font-size: 18px; }
    .brand img { width: 38px; height: 38px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; min-width: 0; }
    .nav-links > a:not(.button) { color: #425652; font-size: 13px; padding: 10px 8px; white-space: nowrap; }
    .nav-links > a:not(.button):hover { color: var(--green); }
    .nav-links .button { margin-left: 8px; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); color: var(--ink); width: 42px; height: 42px; border-radius: 8px; cursor: pointer; }
    .button {
      display: inline-flex; min-height: 46px; justify-content: center; align-items: center;
      padding: 11px 18px; border: 1px solid transparent; border-radius: 6px;
      background: var(--green); color: #fff; font-weight: 700; transition: transform .2s, background .2s, box-shadow .2s;
    }
    .button:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 18px rgba(8,125,103,.2); }
    .button.secondary { background: var(--white); color: var(--ink); border-color: var(--line); }
    .button.secondary:hover { background: #edf5f1; box-shadow: none; }
    .button.small { min-height: 40px; padding: 8px 13px; font-size: 14px; }
    .hero {
      position: relative; overflow: hidden; padding: 76px 0 64px;
      background: linear-gradient(120deg, #e5f5ed 0%, #eff6ed 42%, #fff0df 100%);
      border-bottom: 1px solid #e2e9df;
    }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border: 1px solid rgba(8,125,103,.15); border-radius: 50%; }
    .hero::before { width: 420px; aspect-ratio: 1; right: -110px; top: -210px; box-shadow: 0 0 0 28px rgba(8,125,103,.035), 0 0 0 58px rgba(8,125,103,.025); }
    .hero::after { width: 240px; aspect-ratio: 1; left: -150px; bottom: -155px; box-shadow: 0 0 0 24px rgba(244,161,142,.13); }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 48px; align-items: center; }
    .eyebrow { color: var(--green-dark); text-transform: uppercase; letter-spacing: 1.4px; font-size: 12px; font-weight: 800; }
    h1 { max-width: 700px; margin: 14px 0 18px; font-size: clamp(38px, 5vw, 62px); line-height: 1.1; letter-spacing: 0; }
    .hero-copy { max-width: 640px; color: #435753; font-size: 18px; margin: 0 0 26px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-notes { margin-top: 22px; color: #536762; font-size: 13px; }
    .hero-panel { padding: 24px; border: 1px solid rgba(255,255,255,.9); background: rgba(255,255,255,.68); border-radius: 8px; box-shadow: 0 18px 40px rgba(31,72,58,.09); }
    .hero-panel h2 { margin: 0 0 18px; font-size: 16px; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span { display: inline-flex; padding: 6px 10px; background: var(--white); border: 1px solid #e1e9e4; border-radius: 4px; font-size: 12px; font-weight: 650; }
    .model-cloud span:nth-child(4n+1) { border-color: #a8ddc7; }
    .model-cloud span:nth-child(4n+2) { border-color: #f2c3b7; }
    .model-cloud span:nth-child(4n+3) { border-color: #e9d58f; }
    .hero-panel-note { margin: 18px 0 0; color: var(--muted); font-size: 13px; }
    .section { padding: 72px 0; }
    .section.tint { background: #eef4f0; border-block: 1px solid #e0e8e3; }
    .section-head { max-width: 720px; margin-bottom: 32px; }
    .section-head h2 { margin: 7px 0 10px; font-size: 34px; line-height: 1.2; }
    .section-head p { margin: 0; color: var(--muted); }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 22px 0; }
    .metric { padding: 14px 18px; border-left: 3px solid var(--green); background: #fff; }
    .metric strong { display: block; font-size: 20px; }
    .metric span { color: var(--muted); font-size: 13px; }
    .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: start; }
    .about-copy p { color: var(--muted); margin: 0 0 16px; }
    .feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; border-top: 1px solid var(--line); }
    .feature-list div { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .feature-list strong { display: block; margin-bottom: 4px; }
    .feature-list span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { padding: 21px; background: var(--white); border: 1px solid var(--line); border-radius: 6px; transition: transform .2s, box-shadow .2s; }
    .service-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .service-item h3 { margin: 0 0 8px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-item .tag { display: inline-block; margin-top: 14px; padding: 3px 8px; border-radius: 3px; background: #e7f5ee; color: var(--green-dark); font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .step { padding: 24px 20px 24px 0; position: relative; }
    .step + .step { padding-left: 20px; border-left: 1px solid var(--line); }
    .step-number { color: var(--green); font-weight: 800; font-size: 13px; }
    .step h3 { margin: 8px 0; font-size: 18px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .split-band { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
    .split-band h2 { margin: 8px 0 12px; font-size: 32px; line-height: 1.2; }
    .split-band p { color: var(--muted); }
    .asset-stack { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .asset-stack .wide { grid-column: 1 / -1; }
    .image-frame { overflow: hidden; background: #e7eeea; border-radius: 6px; }
    .image-frame img { display: block; width: 100%; height: auto; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--white); border-radius: 6px; }
    table { border-collapse: collapse; width: 100%; min-width: 760px; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid #e6ece8; vertical-align: top; }
    th { background: #e9f3ed; font-size: 14px; }
    td { color: #435652; font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .rating { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; padding: 20px 24px; background: #fff7df; border-left: 4px solid #e1b339; }
    .rating strong { font-size: 30px; line-height: 1; }
    .rating span { color: #5f552f; }
    .stars { color: #aa7900; letter-spacing: 2px; font-size: 18px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .case { background: var(--white); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
    .case .image-frame { border-radius: 0; }
    .case-copy { padding: 17px; }
    .case-copy h3 { margin: 0 0 6px; font-size: 16px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 20px; border-top: 3px solid var(--coral); background: #fff; }
    .review:nth-child(2), .review:nth-child(5) { border-color: var(--blue); }
    .review:nth-child(3), .review:nth-child(6) { border-color: var(--yellow); }
    .review p { margin: 0 0 15px; color: #425550; font-size: 14px; }
    .review strong { font-size: 13px; }
    .review span { display: block; color: var(--muted); font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { cursor: pointer; list-style: none; padding: 17px 34px 17px 0; position: relative; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 5px; top: 13px; color: var(--green); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 30px 18px 0; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-list a { padding: 13px; border: 1px solid var(--line); background: #fff; font-size: 13px; color: var(--green-dark); overflow-wrap: anywhere; }
    .article-list a:hover { border-color: var(--green); }
    .form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .contact-details p { color: var(--muted); }
    .contact-details a { color: var(--green-dark); font-weight: 700; }
    .contact-form { 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-height: 44px; padding: 10px 12px; border: 1px solid #cbd9d1; border-radius: 4px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 118px; resize: vertical; }
    .contact-form button { justify-self: start; cursor: pointer; }
    .network { display: flex; flex-wrap: wrap; gap: 9px; }
    .network span { padding: 8px 12px; border: 1px solid #d4e2da; background: #fff; font-size: 13px; }
    .footer { padding: 28px 0; color: #dce9e2; background: #193b34; }
    .footer-row { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .footer p { margin: 0; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 12px 18px; }
    .footer a { color: #e5f2eb; font-size: 13px; }
    .footer a:hover { color: #aee5c8; }
    .socials { margin-top: 12px; color: #dce9e2; font-size: 13px; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .float-contact a { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 9px 13px; border-radius: 5px; background: var(--green); color: #fff; box-shadow: 0 5px 16px rgba(20,55,46,.2); font-size: 13px; font-weight: 700; }
    .float-contact a:last-child { background: #fff; border: 1px solid var(--line); color: var(--ink); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 980px) {
      .nav-links > a:not(.button) { padding-inline: 5px; font-size: 12px; }
      .nav-links .button { padding-inline: 12px; }
      .hero-inner { gap: 26px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .article-list { 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; }
      .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; padding: 10px 16px 16px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 12px 20px rgba(23,43,42,.08); align-items: stretch; }
      .nav-links.open { display: grid; grid-template-columns: 1fr 1fr; }
      .nav-links > a:not(.button) { padding: 10px 8px; font-size: 14px; }
      .nav-links .button { margin: 6px 0 0; grid-column: 1 / -1; }
      .hero { padding: 54px 0 44px; }
      .hero-inner, .about-grid, .split-band, .form-layout { grid-template-columns: 1fr; }
      .hero-inner { gap: 28px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 16px; }
      .hero-panel { max-width: 560px; }
      .section { padding: 54px 0; }
      .section-head h2, .split-band h2 { font-size: 29px; }
      .metrics { grid-template-columns: 1fr 1fr; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .step, .step + .step { padding: 19px 14px 19px 0; border-left: 0; }
      .step:nth-child(even) { padding-left: 14px; border-left: 1px solid var(--line); }
      .case-grid, .reviews { grid-template-columns: 1fr 1fr; }
      .footer-row { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 480px) {
      .brand { font-size: 16px; }
      .brand img { width: 34px; height: 34px; }
      h1 { font-size: 36px; }
      .hero-actions .button { width: 100%; }
      .service-grid, .case-grid, .reviews, .feature-list, .contact-form { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .workflow { grid-template-columns: 1fr; }
      .step, .step + .step, .step:nth-child(even) { padding: 17px 0; border-left: 0; border-bottom: 1px solid var(--line); }
      .step:last-child { border-bottom: 0; }
      .rating { align-items: flex-start; flex-direction: column; gap: 8px; }
      .float-contact { right: 10px; bottom: 10px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }