:root {
      color-scheme: light;
      --ink: #172b32;
      --muted: #526b70;
      --line: #d7e7e4;
      --paper: #f4fbf9;
      --white: #fff;
      --teal: #087f78;
      --teal-dark: #075e5b;
      --mint: #d9f1e9;
      --lime: #d4e96f;
      --coral: #e66d51;
      --blue: #356e91;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    img { display: block; 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(244, 251, 249, .94);
      border-bottom: 1px solid rgba(215, 231, 228, .9);
      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; font-size: 18px; }
    .brand-mark { width: 34px; height: 34px; border-radius: 10px 10px 10px 3px; background: var(--teal); display: grid; place-items: center; color: white; font-size: 16px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 9px 10px; border-radius: 4px; color: #36545a; font-size: 13px; transition: color .2s, background .2s; }
    .nav-links a:hover { color: var(--teal-dark); background: #e5f4ef; }
    .nav-cta { padding: 10px 16px; background: var(--teal); color: white; border-radius: 4px; font-size: 13px; font-weight: 700; white-space: nowrap; transition: transform .2s, background .2s; }
    .nav-cta:hover, .button-primary:hover { background: var(--teal-dark); transform: translateY(-2px); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: white; color: var(--ink); border-radius: 4px; cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 68px 0 54px; background: linear-gradient(120deg, #e1f4ec 0%, #f3fbf8 54%, #e4f3f4 100%); }
    .hero::after { content: ""; position: absolute; width: 350px; height: 350px; right: -80px; top: -160px; border: 1px solid rgba(8,127,120,.16); border-radius: 50%; box-shadow: 0 0 0 34px rgba(8,127,120,.035), 0 0 0 68px rgba(8,127,120,.025); pointer-events: none; }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(290px, .75fr); gap: 52px; align-items: center; position: relative; z-index: 1; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--teal-dark); font-size: 12px; letter-spacing: 1.5px; font-weight: 800; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--coral); }
    h1 { max-width: 700px; margin: 18px 0 18px; font-size: clamp(38px, 5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 620px; color: #415c60; font-size: 17px; margin: 0; }
    .hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
    .button-primary, .button-secondary { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 20px; border-radius: 4px; font-weight: 750; transition: transform .2s, background .2s, border-color .2s; }
    .button-primary { color: white; background: var(--teal); }
    .button-secondary { color: var(--ink); border: 1px solid #a9c9c2; background: rgba(255,255,255,.55); }
    .button-secondary:hover { border-color: var(--teal); transform: translateY(-2px); }
    .hero-note { color: #526b70; font-size: 12px; margin-top: 14px; }
    .hero-panel { border-left: 1px solid #a7cec5; padding: 8px 0 8px 26px; }
    .hero-panel h2 { font-size: 15px; margin: 0 0 18px; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span { padding: 6px 10px; border: 1px solid #c4e0d9; background: rgba(255,255,255,.56); color: #315d5b; font-size: 12px; border-radius: 3px; }
    .hero-panel p { color: var(--muted); font-size: 13px; margin: 18px 0 0; }
    .metric-band { background: var(--teal-dark); color: white; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); }
    .metric { padding: 22px 20px; border-right: 1px solid rgba(255,255,255,.18); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; font-size: 18px; color: #e4f2a2; }
    .metric span { display: block; color: #d2e8e2; font-size: 12px; margin-top: 3px; }
    main { overflow: hidden; }
    .section { padding: 76px 0; }
    .section-alt { background: #eaf5f1; }
    .section-white { background: #fff; }
    .section-head { max-width: 700px; margin-bottom: 32px; }
    .section-kicker { color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; }
    h2 { margin: 8px 0 10px; font-size: clamp(26px, 3vw, 38px); line-height: 1.22; letter-spacing: 0; }
    .section-head p, .intro-copy { margin: 0; color: var(--muted); }
    .intro-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 54px; align-items: start; }
    .intro-copy { font-size: 16px; }
    .intro-copy p { margin: 0 0 14px; }
    .intro-aside { border-top: 3px solid var(--lime); padding: 20px 0 0; }
    .intro-aside strong { display: block; font-size: 16px; margin-bottom: 8px; }
    .intro-aside p { margin: 0; color: var(--muted); font-size: 14px; }
    .capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .capability { min-height: 160px; padding: 22px; background: white; transition: background .2s, transform .2s; }
    .capability:hover { background: #f2fbf7; transform: translateY(-3px); }
    .capability .num { color: var(--coral); font-size: 12px; font-weight: 800; }
    .capability h3 { font-size: 17px; margin: 10px 0 6px; }
    .capability p { color: var(--muted); font-size: 13px; margin: 0; }
    .workflows { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: flow; }
    .workflow { position: relative; padding: 20px 18px 18px 0; border-top: 1px solid #9bbfb7; counter-increment: flow; }
    .workflow::before { content: "0" counter(flow); color: var(--teal); font-weight: 800; font-size: 12px; }
    .workflow h3 { margin: 9px 0 5px; font-size: 16px; }
    .workflow p { margin: 0; font-size: 13px; color: var(--muted); }
    .sector-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: start; }
    .sector-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
    .sector-item { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .sector-item strong { display: block; font-size: 14px; }
    .sector-item span { color: var(--muted); font-size: 12px; }
    .service-network { background: #123f42; color: white; padding: 30px; }
    .service-network h3 { margin: 0 0 10px; font-size: 21px; }
    .service-network p { margin: 0 0 18px; color: #d1e7df; font-size: 14px; }
    .network-tags { display: flex; flex-wrap: wrap; gap: 7px; }
    .network-tags span { padding: 5px 9px; color: #e9f5ef; border: 1px solid #608785; font-size: 11px; border-radius: 2px; }
    .media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
    .media-frame { overflow: hidden; background: #dfeae7; border: 1px solid var(--line); }
    .media-frame img { width: 100%; height: auto; }
    .media-caption { padding: 12px 14px; color: #415c60; font-size: 13px; background: white; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .case-item { border-top: 3px solid var(--teal); background: #fff; padding: 20px; }
    .case-item small { color: var(--coral); font-weight: 800; }
    .case-item h3 { margin: 8px 0; font-size: 17px; }
    .case-item p { margin: 0; font-size: 13px; color: var(--muted); }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 19px; background: white; border: 1px solid var(--line); }
    .stars { color: #c17c1d; letter-spacing: 2px; font-size: 13px; }
    .review p { margin: 9px 0 14px; font-size: 13px; color: #3f585c; }
    .review strong { font-size: 12px; color: var(--teal-dark); }
    .rating-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 30px; align-items: start; }
    .rating-score { padding: 25px; background: #d9f1e9; border-left: 4px solid var(--teal); }
    .rating-score .score { font-size: 50px; font-weight: 850; line-height: 1; color: var(--teal-dark); }
    .rating-score p { color: var(--muted); margin: 8px 0 0; }
    .rating-score .stars { margin-top: 10px; font-size: 18px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; border-collapse: collapse; min-width: 620px; font-size: 13px; }
    th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid #e5efed; vertical-align: top; }
    th { background: #edf7f3; color: #24494b; font-weight: 800; }
    tr:last-child td { border-bottom: 0; }
    .positive { color: var(--teal-dark); font-weight: 700; }
    .token-strip { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 24px 0; border-top: 1px solid #a8c9c1; border-bottom: 1px solid #a8c9c1; }
    .token-strip h3 { margin: 0 0 5px; font-size: 18px; }
    .token-strip p { margin: 0; color: var(--muted); font-size: 13px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .tag-cloud span { color: #355a5d; padding: 6px 10px; border: 1px solid #c5ddd7; font-size: 12px; background: rgba(255,255,255,.55); }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { list-style: none; cursor: pointer; position: relative; padding: 17px 42px 17px 0; font-weight: 750; font-size: 15px; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 13px; color: var(--teal); font-size: 22px; font-weight: 400; transition: transform .2s; }
    .faq-item[open] summary::after { transform: rotate(45deg); }
    .faq-item p { margin: -3px 42px 17px 0; color: var(--muted); font-size: 13px; }
    .article-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-link { padding: 14px; border: 1px solid var(--line); color: var(--teal-dark); background: white; font-size: 13px; transition: border-color .2s, transform .2s; }
    .article-link:hover { border-color: var(--teal); transform: translateY(-2px); }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
    .contact-details { display: grid; gap: 15px; margin-top: 22px; }
    .contact-line { padding-bottom: 12px; border-bottom: 1px solid var(--line); }
    .contact-line span { display: block; color: var(--muted); font-size: 11px; }
    .contact-line strong, .contact-line a { font-size: 14px; }
    .qr-wrap { margin-top: 20px; width: 150px; padding: 8px; border: 1px solid var(--line); background: white; }
    .qr-wrap img { width: 100%; height: auto; }
    .form-panel { padding: 24px; background: white; border: 1px solid var(--line); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { font-size: 12px; font-weight: 700; color: #36545a; }
    .field input, .field select, .field textarea { min-width: 0; width: 100%; padding: 11px 12px; border: 1px solid #cbdeda; border-radius: 3px; background: #fbfdfc; color: var(--ink); outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(8,127,120,.1); }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-submit { margin-top: 16px; border: 0; cursor: pointer; }
    .form-note { font-size: 11px; color: var(--muted); margin: 10px 0 0; }
    .partner-links { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 17px; }
    .partner-links a { font-size: 12px; color: #d5ece5; text-decoration: underline; text-underline-offset: 3px; }
    .site-footer { background: #123638; color: #e7f1ee; padding: 30px 0 22px; }
    .footer-row { display: flex; justify-content: space-between; gap: 24px; align-items: start; }
    .footer-brand { font-weight: 800; font-size: 16px; }
    .footer-copy { color: #bfd5cf; font-size: 12px; margin: 6px 0 0; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
    .footer-links a { color: #e7f1ee; font-size: 12px; }
    .copyright { border-top: 1px solid rgba(231,241,238,.18); margin-top: 20px; padding-top: 15px; color: #bfd5cf; font-size: 11px; }
    .float-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .float-contact a, .to-top { width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid #b7d4cc; background: white; color: var(--teal-dark); box-shadow: 0 5px 20px rgba(19,65,62,.12); font-size: 11px; font-weight: 800; border-radius: 50%; cursor: pointer; }
    .to-top { display: none; }
    .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; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 980px) {
      .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; flex-direction: column; }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 0; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-cta { margin-left: auto; }
      .hero-grid { grid-template-columns: 1fr; gap: 32px; }
      .hero-panel { border-left: 0; border-top: 1px solid #a7cec5; padding: 20px 0 0; }
      .capability-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)); }
      .nav-row { min-height: 66px; gap: 10px; }
      .brand { font-size: 16px; }
      .brand-mark { width: 31px; height: 31px; }
      .nav-links { top: 66px; }
      .nav-cta { padding: 9px 11px; font-size: 12px; }
      .hero { padding: 48px 0 40px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 15px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric { padding: 17px 14px; border-bottom: 1px solid rgba(255,255,255,.18); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(3), .metric:nth-child(4) { border-bottom: 0; }
      .section { padding: 56px 0; }
      .intro-layout, .sector-layout, .rating-layout, .contact-grid { grid-template-columns: 1fr; gap: 26px; }
      .capability-grid { grid-template-columns: 1fr; }
      .capability { min-height: 0; }
      .workflows { grid-template-columns: repeat(2, 1fr); gap: 10px 18px; }
      .sector-list { grid-template-columns: 1fr; }
      .media-grid, .case-grid, .review-grid { grid-template-columns: 1fr; }
      .article-links { grid-template-columns: repeat(2, 1fr); }
      .token-strip { grid-template-columns: 1fr; gap: 14px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .footer-row { flex-direction: column; }
      .float-contact { right: 12px; bottom: 12px; }
    }