:root {
      color-scheme: light;
      --ink: #18231f;
      --muted: #62716a;
      --paper: #f7f9f6;
      --white: #fff;
      --line: #dfe7e1;
      --green: #145c42;
      --lime: #c8f169;
      --coral: #ed7259;
      --blue: #dcebf5;
      --max: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    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; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; z-index: 20; top: 0; background: rgba(247,249,246,.94); border-bottom: 1px solid rgba(24,35,31,.09); backdrop-filter: blur(14px); }
    .nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { width: 40px; max-height: 40px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { text-decoration: none; color: #46534c; font-size: 13px; padding: 9px 10px; border-radius: 4px; transition: color .2s, background .2s; }
    .nav-links a:hover { color: var(--green); background: #e9f0e9; }
    .nav-cta, .button { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-height: 46px; padding: 0 19px; border: 0; border-radius: 4px; background: var(--green); color: #fff; font-weight: 700; text-decoration: none; transition: transform .2s, background .2s, box-shadow .2s; cursor: pointer; }
    .nav-cta { min-height: 40px; padding-inline: 15px; white-space: nowrap; font-size: 13px; }
    .button:hover, .nav-cta:hover { background: #0d4833; transform: translateY(-2px); box-shadow: 0 8px 18px #145c4226; }
    .button.secondary { color: var(--ink); background: #fff; border: 1px solid var(--line); }
    .menu-toggle { display: none; width: 42px; height: 42px; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: 4px; font-size: 20px; }
    .hero { position: relative; overflow: hidden; padding: 75px 0 56px; background: #dff0dc; border-bottom: 1px solid #c8dcc6; }
    .hero:before { content: ""; position: absolute; width: 440px; height: 440px; border: 1px solid #145c4226; border-radius: 50%; right: -80px; top: -205px; box-shadow: 0 0 0 36px #145c4208, 0 0 0 86px #145c4206; }
    .hero:after { content: ""; position: absolute; width: 10px; height: 10px; right: 18%; top: 72px; border-radius: 50%; background: var(--coral); box-shadow: 29px 24px 0 var(--lime), -18px 35px 0 var(--green); }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr); gap: 50px; align-items: center; }
    .eyebrow { margin: 0 0 16px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; }
    h1 { max-width: 700px; margin: 0; font-size: clamp(42px, 6vw, 72px); line-height: 1.1; letter-spacing: 0; }
    .hero-copy { max-width: 620px; margin: 20px 0 26px; color: #46584d; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 11px; }
    .hero-note { margin: 17px 0 0; color: #516158; font-size: 13px; }
    .hero-art { min-height: 265px; padding: 23px; border: 1px solid #145c4230; border-radius: 6px; background: #f8fbf4; box-shadow: 14px 14px 0 #145c4212; }
    .art-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 16px; border-bottom: 1px solid var(--line); font-size: 12px; color: var(--muted); }
    .art-dot { width: 9px; height: 9px; display: inline-block; margin-right: 5px; border-radius: 50%; background: #8fc757; }
    .model-flow { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; margin-top: 25px; }
    .flow-stack { display: grid; gap: 9px; }
    .flow-node { padding: 10px 12px; border: 1px solid var(--line); border-radius: 4px; background: white; font-size: 13px; font-weight: 700; }
    .flow-node small { display: block; color: var(--muted); font-size: 11px; font-weight: 400; }
    .flow-arrow { color: var(--green); font-size: 24px; }
    .art-foot { margin-top: 22px; display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
    .metrics { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 48px; border-top: 1px solid #145c4230; }
    .metric { padding: 18px 20px 0 0; }
    .metric strong { display: block; font-size: 22px; line-height: 1.35; }
    .metric span { color: var(--muted); font-size: 12px; }
    main section { padding: 76px 0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 30px; }
    .section-head h2, .text-section h2 { margin: 0; font-size: clamp(27px, 4vw, 42px); line-height: 1.2; letter-spacing: 0; }
    .section-head p { max-width: 470px; margin: 0; color: var(--muted); }
    .kicker { margin: 0 0 10px; color: var(--coral); font-size: 12px; font-weight: 800; letter-spacing: 1.2px; }
    .intro { display: grid; grid-template-columns: .85fr 1.15fr; gap: 68px; align-items: start; }
    .intro-copy { color: var(--muted); }
    .intro-copy p { margin: 0 0 16px; }
    .intro-points { display: grid; grid-template-columns: repeat(2,1fr); gap: 0 22px; border-top: 1px solid var(--line); }
    .intro-point { padding: 17px 0; border-bottom: 1px solid var(--line); }
    .intro-point strong { display: block; margin-bottom: 3px; }
    .intro-point span { color: var(--muted); font-size: 13px; }
    .service-section { background: #eef3ec; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #d7e0d7; border: 1px solid #d7e0d7; }
    .service { min-height: 160px; padding: 22px; background: #f8faf7; transition: background .2s, transform .2s; }
    .service:hover { position: relative; z-index: 1; background: white; transform: translateY(-3px); }
    .service-index { color: var(--coral); font-size: 12px; font-weight: 800; }
    .service h3 { margin: 9px 0 6px; font-size: 18px; }
    .service p { margin: 0; color: var(--muted); font-size: 13px; }
    .capability { display: grid; grid-template-columns: 1fr 1fr; gap: 55px; align-items: center; }
    .capability-copy p { color: var(--muted); }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
    .tag-cloud span { padding: 7px 11px; border: 1px solid #cbd9ce; border-radius: 3px; background: #fff; font-size: 13px; }
    .workflow { padding: 24px; background: var(--green); color: white; border-radius: 5px; }
    .workflow h3 { margin: 0 0 18px; font-size: 19px; }
    .workflow ol { margin: 0; padding: 0; list-style: none; counter-reset: step; }
    .workflow li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid #ffffff35; }
    .workflow li:before { counter-increment: step; content: "0" counter(step); color: var(--lime); font-weight: 800; }
    .workflow small { display: block; color: #d5e6dc; }
    .industry { background: #e9eff3; }
    .industry-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
    .industry-item { min-height: 123px; padding: 19px; border-left: 3px solid var(--green); background: #f8fafb; }
    .industry-item strong { display: block; margin-bottom: 7px; }
    .industry-item span { color: var(--muted); font-size: 13px; }
    .network { display: grid; grid-template-columns: .9fr 1.1fr; gap: 55px; align-items: center; }
    .network-copy p { color: var(--muted); }
    .network-band { display: grid; grid-template-columns: repeat(3,1fr); border-block: 1px solid var(--line); }
    .network-band div { padding: 18px 12px 18px 0; }
    .network-band strong { display: block; font-size: 16px; }
    .network-band span { color: var(--muted); font-size: 12px; }
    .case-section { background: #f0f2e8; }
    .case-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
    .case-feature { overflow: hidden; background: #fff; }
    .case-feature .media { aspect-ratio: 16 / 8; overflow: hidden; background: #dce7dc; }
    .case-feature .media img, .case-small img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .case-feature-copy { padding: 19px 21px; }
    .case-feature-copy h3, .case-small h3 { margin: 0 0 6px; }
    .case-feature-copy p, .case-small p { margin: 0; color: var(--muted); font-size: 13px; }
    .case-stack { display: grid; gap: 12px; }
    .case-small { display: grid; grid-template-columns: 115px 1fr; gap: 15px; align-items: center; padding: 12px; background: #fff; }
    .case-small .media { aspect-ratio: 1; overflow: hidden; background: #dce7dc; }
    .banner-gallery { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-top: 18px; }
    .banner-gallery figure { margin: 0; overflow: hidden; background: #e5ece5; }
    .banner-gallery img { display: block; width: 100%; aspect-ratio: 4/3; object-fit: cover; }
    .banner-gallery figcaption { padding: 10px 12px; font-size: 13px; font-weight: 700; }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
    .review { padding: 21px; border-top: 3px solid var(--lime); background: #fff; }
    .review blockquote { margin: 0 0 17px; color: #46534c; font-size: 14px; }
    .review footer { color: var(--muted); font-size: 12px; }
    .score-layout { display: grid; grid-template-columns: .62fr 1.38fr; gap: 35px; align-items: start; }
    .score-panel { padding: 24px; background: var(--green); color: white; }
    .score-panel .stars { color: var(--lime); letter-spacing: 2px; font-size: 20px; }
    .score-panel strong { display: block; margin: 7px 0; font-size: 46px; line-height: 1; }
    .score-panel p { margin: 8px 0 0; color: #dce9df; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; min-width: 660px; border-collapse: collapse; text-align: left; font-size: 13px; }
    th, td { padding: 12px 14px; border-bottom: 1px solid var(--line); }
    th { background: #edf3ed; }
    td:last-child { color: var(--green); font-weight: 700; }
    .table-note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
    .token { background: #e3eff1; }
    .token-content { display: grid; grid-template-columns: 1fr .8fr; gap: 40px; align-items: center; }
    .token-content p { color: var(--muted); }
    .token-callout { padding: 22px; border-left: 4px solid var(--coral); background: #fff; }
    .token-callout strong { display: block; margin-bottom: 5px; }
    .match { display: grid; grid-template-columns: .8fr 1.2fr; gap: 55px; }
    .match-copy p { color: var(--muted); }
    .match-copy ul { padding-left: 18px; color: var(--muted); }
    form { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; border: 1px solid #cbd5ce; border-radius: 3px; padding: 11px 12px; color: var(--ink); background: #fff; }
    textarea { min-height: 112px; resize: vertical; }
    input:focus, select:focus, textarea:focus { outline: 2px solid #145c4233; border-color: var(--green); }
    .form-foot { grid-column: 1 / -1; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
    .form-status { color: var(--muted); font-size: 13px; }
    .faq-section { background: #eef3ec; }
    .faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; border-top: 1px solid #ccd8ce; }
    details { border-bottom: 1px solid #ccd8ce; }
    summary { position: relative; padding: 17px 30px 17px 0; font-weight: 700; cursor: pointer; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary:after { content: "+"; position: absolute; right: 3px; top: 14px; color: var(--green); font-size: 21px; transition: transform .2s; }
    details[open] summary:after { transform: rotate(45deg); }
    details p { margin: 0 0 17px; color: var(--muted); font-size: 14px; }
    .articles { display: grid; grid-template-columns: .7fr 1.3fr; gap: 45px; }
    .article-list { border-top: 1px solid var(--line); }
    .article-list a { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); text-decoration: none; font-weight: 700; }
    .article-list a span { color: var(--green); font-size: 13px; white-space: nowrap; }
    .article-list a:hover { color: var(--green); }
    .affiliate { padding: 27px 0; border-top: 1px solid var(--line); }
    .affiliate h2 { margin: 0 0 13px; font-size: 16px; }
    .affiliate-links { display: flex; flex-wrap: wrap; gap: 8px 20px; }
    .affiliate-links a { color: #43574a; font-size: 13px; text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .contact-strip { padding: 37px 0; background: var(--lime); }
    .contact-inner { display: flex; justify-content: space-between; align-items: center; gap: 25px; }
    .contact-inner h2 { margin: 0; font-size: 28px; }
    .contact-inner p { margin: 5px 0 0; color: #44513d; }
    .contact-inner .button { color: white; background: var(--green); white-space: nowrap; }
    .site-footer { padding: 32px 0 25px; color: #e8f0ea; background: #173a2c; }
    .footer-main { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; align-items: start; }
    .footer-main p { margin: 6px 0; color: #cfddd3; font-size: 13px; }
    .footer-links { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 8px 17px; }
    .footer-links a { color: #e8f0ea; font-size: 13px; }
    .copyright { margin-top: 22px; padding-top: 15px; border-top: 1px solid #ffffff2a; color: #c5d4ca; font-size: 12px; }
    .float-tools { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid #d4dfd7; border-radius: 4px; background: white; color: var(--green); text-decoration: none; font-weight: 800; box-shadow: 0 5px 16px #15271c1c; cursor: pointer; }
    .qr-pop { position: absolute; right: 56px; bottom: 0; display: none; width: 170px; padding: 10px; border: 1px solid var(--line); background: white; box-shadow: 0 8px 22px #15271c1c; }
    .qr-pop img { display: block; width: 100%; }
    .qr-pop span { display: block; margin-top: 5px; text-align: center; color: var(--ink); font-size: 12px; }
    .float-tools .qr-trigger:hover + .qr-pop, .qr-pop:hover { display: block; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @media (max-width: 980px) {
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav { position: relative; }
      .nav-links { display: none; position: absolute; top: calc(100% - 1px); left: 0; right: 0; padding: 10px; border: 1px solid var(--line); background: var(--paper); box-shadow: 0 12px 22px #18231f15; }
      .nav-links.open { display: grid; grid-template-columns: repeat(3,1fr); }
      .nav-links a { padding: 10px; }
      .nav-cta { margin-left: auto; }
      .hero-inner { gap: 28px; }
      .industry-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--max), calc(100% - 32px)); }
      .nav { min-height: 66px; gap: 10px; }
      .brand img { width: 34px; max-height: 34px; }
      .brand { font-size: 14px; gap: 7px; }
      .nav-cta { min-height: 37px; padding-inline: 10px; font-size: 12px; }
      .nav-links.open { grid-template-columns: repeat(2,1fr); }
      .hero { padding: 52px 0 37px; }
      .hero-inner, .intro, .capability, .network, .score-layout, .token-content, .match, .articles { grid-template-columns: 1fr; }
      .hero-inner { gap: 28px; }
      h1 { font-size: 45px; }
      .hero-copy { font-size: 15px; }
      .hero-art { min-height: auto; }
      .metrics { grid-template-columns: repeat(2,1fr); margin-top: 34px; }
      .metric { padding: 14px 10px 0 0; }
      main section { padding: 54px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .service { min-height: 150px; padding: 16px; }
      .industry-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
      .industry-item { padding: 14px; min-height: 116px; }
      .case-grid { grid-template-columns: 1fr; }
      .banner-gallery { grid-template-columns: 1fr 1fr; }
      .review-grid { grid-template-columns: 1fr; }
      .faq-list { grid-template-columns: 1fr; }
      .network-band { grid-template-columns: 1fr; }
      .network-band div { border-bottom: 1px solid var(--line); }
      form { grid-template-columns: 1fr; }
      .field.full, .form-foot { grid-column: auto; }
      .contact-inner { align-items: flex-start; flex-direction: column; }
      .footer-main { grid-template-columns: 1fr; }
      .footer-links { justify-content: flex-start; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools a, .float-tools button { width: 42px; height: 42px; }
      .qr-pop { right: 51px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }