:root {
      color-scheme: light;
      --ink: #172721;
      --muted: #61716b;
      --green: #176b4a;
      --green-dark: #104d37;
      --lime: #d8f36a;
      --mint: #eaf5ed;
      --paper: #f7faf8;
      --white: #fff;
      --line: #dce7df;
      --coral: #f0785d;
      --gold: #e4ad3e;
      --container: 1160px;
      --shadow: 0 12px 32px rgba(24, 59, 41, .08);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -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 { display: block; max-width: 100%; height: auto; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      border-bottom: 1px solid rgba(220, 231, 223, .86);
      background: rgba(247, 250, 248, .94);
      backdrop-filter: blur(14px);
    }
    .header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; font-size: 19px; }
    .brand-mark {
      display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
      color: var(--green-dark); background: var(--lime); font-size: 17px;
    }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 9px 12px; color: #43554d; font-size: 13px; white-space: nowrap; }
    .nav-links a:hover { color: var(--green); }
    .nav-links .nav-cta { margin-left: 8px; padding: 10px 16px; border-radius: 5px; background: var(--green); color: white; font-weight: 700; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 5px; background: white; color: var(--ink); cursor: pointer; }
    .menu-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: currentColor; }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 74px 0 58px;
      background: linear-gradient(122deg, #eff9ed 0%, #f8fbf6 52%, #e6f5ee 100%);
      border-bottom: 1px solid #e1eee3;
    }
    .hero::before {
      position: absolute; right: -78px; top: -150px; width: 430px; height: 430px;
      content: ""; border: 1px solid rgba(23, 107, 74, .12); border-radius: 50%;
      box-shadow: 0 0 0 38px rgba(23, 107, 74, .035), 0 0 0 78px rgba(23, 107, 74, .025);
    }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 56px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: 1.1px; text-transform: uppercase; }
    .eyebrow::before { width: 22px; height: 2px; content: ""; background: var(--coral); }
    h1 { max-width: 690px; margin: 0; font-size: clamp(40px, 5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 600px; margin: 22px 0 0; color: #52645c; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 10px; padding: 0 20px; border: 1px solid transparent; border-radius: 5px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(23, 107, 74, .16); }
    .button-primary { background: var(--green); color: white; }
    .button-secondary { border-color: #b8cfc0; background: rgba(255,255,255,.65); color: var(--green-dark); }
    .hero-note { margin: 16px 0 0; color: #6b7c73; font-size: 12px; }
    .hero-panel { position: relative; padding: 25px; border: 1px solid #cfe1d2; border-radius: 8px; background: rgba(255,255,255,.76); box-shadow: var(--shadow); animation: rise-in .7s both; }
    .panel-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
    .panel-top strong { font-size: 15px; }
    .live-label { display: inline-flex; align-items: center; gap: 7px; color: var(--green); font-size: 11px; font-weight: 750; }
    .live-label::before { width: 7px; height: 7px; content: ""; border-radius: 50%; background: #52ad70; box-shadow: 0 0 0 4px #e8f5e9; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; padding: 19px 0; }
    .model-cloud span { padding: 5px 9px; border: 1px solid #d9e8dc; border-radius: 4px; background: #f7fbf7; color: #3d5949; font-size: 11px; }
    .panel-bottom { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 15px; }
    .panel-bottom p { margin: 0; color: var(--muted); font-size: 12px; }
    .panel-bottom b { color: var(--green-dark); font-size: 24px; }

    .metrics { position: relative; z-index: 1; margin-top: -1px; background: var(--green-dark); color: white; }
    .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
    .metric { padding: 22px 24px; border-right: 1px solid rgba(255,255,255,.17); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--lime); font-size: 24px; line-height: 1.2; }
    .metric span { display: block; margin-top: 5px; color: #e1eee4; font-size: 12px; }

    .section { padding: 76px 0; }
    .section-tint { background: #eef6ef; }
    .section-white { background: #fff; }
    .section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
    .section-heading > div { max-width: 690px; }
    .kicker { margin: 0 0 8px; color: var(--green); font-size: 11px; font-weight: 850; letter-spacing: 1.4px; text-transform: uppercase; }
    h2 { margin: 0; font-size: clamp(28px, 3vw, 38px); line-height: 1.22; letter-spacing: 0; }
    .section-intro { max-width: 650px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
    .text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--green); font-size: 13px; font-weight: 750; white-space: nowrap; }
    .text-link::after { content: "→"; transition: transform .2s ease; }
    .text-link:hover::after { transform: translateX(4px); }

    .about-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 52px; align-items: start; }
    .about-brand { padding: 23px; border-left: 3px solid var(--lime); background: #f4f8f2; }
    .about-brand img { width: 160px; margin-bottom: 22px; }
    .about-brand p { margin: 0; color: #52645c; font-size: 13px; }
    .about-copy > p { margin: 0 0 16px; color: #53645c; }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; margin: 22px 0 0; padding: 0; list-style: none; }
    .capability-list li { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
    .capability-list b { color: var(--green-dark); }

    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 165px; padding: 21px; border: 1px solid var(--line); background: #fff; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
    .service-item:hover { transform: translateY(-4px); border-color: #a9cbb0; box-shadow: var(--shadow); }
    .service-index { display: block; margin-bottom: 15px; color: #93ae9a; font-size: 11px; font-weight: 800; }
    .service-item h3 { margin: 0 0 7px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 12px; }
    .workflow-band { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; padding: 17px 20px; background: var(--green-dark); color: white; }
    .workflow-band span { color: #e8f2e9; font-size: 12px; }
    .workflow-band span:not(:last-child)::after { content: "→"; padding-left: 9px; color: var(--lime); }

    .product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: start; }
    .product-feature { padding: 26px; background: var(--green-dark); color: white; }
    .product-feature .kicker { color: var(--lime); }
    .product-feature h3 { margin: 0 0 10px; font-size: 24px; }
    .product-feature p { margin: 0; color: #e2eee5; font-size: 13px; }
    .product-feature .feature-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
    .feature-tags span { padding: 5px 9px; border: 1px solid rgba(255,255,255,.24); border-radius: 3px; color: #f3f8f1; font-size: 11px; }
    .product-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; margin: 0; padding: 0; list-style: none; }
    .product-list li { padding: 12px 0; border-bottom: 1px solid var(--line); color: #42564a; font-size: 13px; }
    .product-list b { display: block; color: var(--ink); font-size: 13px; }
    .product-list small { color: var(--muted); font-size: 11px; }

    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .industry-item { padding: 18px; border-top: 2px solid var(--green); background: white; }
    .industry-item h3 { margin: 0 0 7px; font-size: 14px; }
    .industry-item p { margin: 0; color: var(--muted); font-size: 12px; }

    .network-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
    .network-copy p { color: var(--muted); }
    .network-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; margin: 20px 0 0; padding: 0; list-style: none; }
    .network-list li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
    .network-list li::before { content: "✓"; margin-right: 8px; color: var(--green); font-weight: 800; }
    .network-visual { padding: 24px; border: 1px solid #d7e6d8; background: #f2f8f1; }
    .network-visual img { width: 100%; }
    .network-visual figcaption { margin-top: 11px; color: var(--muted); font-size: 11px; }

    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
    .step { position: relative; padding: 21px 0 0; border-top: 1px solid #b9cec0; counter-increment: step; }
    .step::before { display: block; margin-bottom: 15px; color: var(--coral); content: "0" counter(step); font-size: 12px; font-weight: 800; }
    .step h3 { margin: 0 0 7px; font-size: 15px; }
    .step p { margin: 0; color: var(--muted); font-size: 12px; }

    .case-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; align-items: stretch; }
    .case-main { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: center; padding: 20px; background: white; border: 1px solid var(--line); }
    .case-main img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
    .case-main h3, .case-side h3 { margin: 0 0 9px; font-size: 18px; }
    .case-main p, .case-side p { margin: 0; color: var(--muted); font-size: 12px; }
    .case-side { display: grid; align-content: start; gap: 15px; padding: 20px; border-left: 3px solid var(--lime); background: #eff6ef; }
    .case-side img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
    .case-small-image { display: grid; grid-template-columns: 100px 1fr; gap: 14px; align-items: center; }
    .case-small-image img { aspect-ratio: 1; object-fit: cover; }

    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .review { padding: 20px; border: 1px solid var(--line); background: #fff; }
    .review blockquote { margin: 0; color: #40534a; font-size: 13px; }
    .review footer { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); color: var(--green); font-size: 11px; font-weight: 750; }

    .score-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 26px; align-items: start; }
    .score-panel { padding: 25px; background: var(--green-dark); color: white; }
    .score-panel .stars { color: var(--lime); font-size: 23px; letter-spacing: 2px; }
    .score-number { margin: 8px 0 0; font-size: 48px; font-weight: 850; line-height: 1; }
    .score-panel p { margin: 10px 0 0; color: #dce9df; font-size: 12px; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    .comparison { width: 100%; min-width: 590px; border-collapse: collapse; text-align: left; font-size: 12px; }
    .comparison th, .comparison td { padding: 13px 15px; border-bottom: 1px solid var(--line); }
    .comparison th { background: #eff6ef; color: var(--green-dark); font-weight: 800; }
    .comparison tr:last-child td { border-bottom: 0; }
    .comparison td:last-child { color: var(--green); font-weight: 700; }

    .token-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
    .token-copy p { color: var(--muted); }
    .token-points { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; }
    .token-points li { padding: 7px 10px; background: #e6f1e7; color: #31553e; font-size: 11px; }
    .price-note { padding: 22px; border-left: 3px solid var(--coral); background: #fff; }
    .price-note strong { display: block; margin-bottom: 7px; font-size: 15px; }
    .price-note p { margin: 0; color: var(--muted); font-size: 12px; }

    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 2px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 700; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; color: var(--green); font-size: 20px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-answer { max-width: 850px; padding: 0 28px 17px 2px; color: var(--muted); font-size: 13px; }

    .article-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 40px; align-items: start; }
    .article-copy p { color: var(--muted); font-size: 13px; }
    .article-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
    .article-list li { border-bottom: 1px solid var(--line); }
    .article-list a { display: flex; justify-content: space-between; gap: 15px; padding: 13px 0; color: #33483b; font-size: 13px; }
    .article-list a:hover { color: var(--green); }
    .article-list span { color: #86958b; font-size: 11px; white-space: nowrap; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
    .tag-cloud span { padding: 6px 10px; border: 1px solid #d2e1d5; color: #52685a; font-size: 11px; }

    .contact-section { background: #eaf4eb; }
    .contact-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 42px; align-items: start; }
    .contact-info p { color: #53665b; font-size: 13px; }
    .contact-details { margin-top: 20px; }
    .contact-details p { margin: 9px 0; }
    .contact-details b { display: inline-block; min-width: 94px; color: var(--ink); }
    .qr-box { display: flex; align-items: center; gap: 15px; margin-top: 20px; }
    .qr-box img { width: 108px; border: 5px solid white; }
    .qr-box span { color: var(--muted); font-size: 12px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 23px; border: 1px solid #d3e2d5; background: white; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { color: #405349; font-size: 12px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #cedbd1; border-radius: 3px; outline: none; background: #fcfdfc; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(23,107,74,.09); }
    .form-footnote { grid-column: 1 / -1; margin: -3px 0 0; color: #74827a; font-size: 11px; }
    .form-submit { grid-column: 1 / -1; justify-self: start; cursor: pointer; }

    .site-footer { padding: 26px 0 20px; background: #e2eee4; color: #263c30; }
    .footer-main { display: flex; align-items: start; justify-content: space-between; gap: 30px; padding-bottom: 20px; border-bottom: 1px solid #cbd9cd; }
    .footer-brand strong { font-size: 16px; }
    .footer-brand p { max-width: 400px; margin: 7px 0 0; color: #5c6c62; font-size: 11px; }
    .friend-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 17px; max-width: 560px; }
    .friend-links a { color: #3d5947; font-size: 11px; }
    .friend-links a:hover { color: var(--green); text-decoration: underline; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 15px; padding-top: 14px; color: #617066; font-size: 11px; }
    .footer-bottom a { color: #315943; }
    .float-actions { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .float-actions a, .float-actions button { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid #cfe0d2; border-radius: 5px; background: white; color: var(--green-dark); box-shadow: 0 5px 18px rgba(19, 55, 36, .12); font-size: 11px; font-weight: 800; cursor: pointer; }
    .float-actions button { display: none; font-size: 17px; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes rise-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

    @media (max-width: 900px) {
      .nav-links a { padding-inline: 8px; font-size: 12px; }
      .hero-inner { gap: 30px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-grid { grid-template-columns: repeat(2, 1fr); }
      .network-layout { gap: 25px; }
    }
    @media (max-width: 720px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-inner { min-height: 64px; }
      .menu-toggle { display: block; }
      .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; align-items: stretch; flex-direction: column; padding: 10px 16px 16px; border-bottom: 1px solid var(--line); background: var(--paper); box-shadow: 0 12px 20px rgba(24,59,41,.08); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 11px 8px; font-size: 14px; }
      .nav-links .nav-cta { margin: 7px 0 0; text-align: center; }
      .hero { padding: 54px 0 38px; }
      .hero-inner { grid-template-columns: 1fr; gap: 29px; }
      .hero::before { right: -240px; top: -160px; }
      .hero-copy { font-size: 15px; }
      .hero-panel { max-width: 500px; }
      .metrics-grid { grid-template-columns: 1fr 1fr; }
      .metric { padding: 16px; border-bottom: 1px solid rgba(255,255,255,.17); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(n+3) { border-bottom: 0; }
      .section { padding: 56px 0; }
      .section-heading { align-items: start; flex-direction: column; gap: 15px; margin-bottom: 23px; }
      .about-layout, .product-grid, .network-layout, .score-layout, .token-layout, .article-layout, .contact-layout { grid-template-columns: 1fr; gap: 24px; }
      .about-brand { display: flex; align-items: center; gap: 18px; }
      .about-brand img { width: 115px; flex: 0 0 115px; margin: 0; }
      .service-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
      .service-item { min-height: 0; padding: 16px; }
      .service-item h3 { font-size: 14px; }
      .industry-grid { gap: 9px; }
      .industry-item { padding: 14px; }
      .steps { grid-template-columns: 1fr 1fr; gap: 22px 16px; }
      .case-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .footer-main, .footer-bottom { flex-direction: column; }
      .friend-links { justify-content: flex-start; }
      .contact-form { padding: 17px; }
      .float-actions { right: 10px; bottom: 12px; }
      .float-actions a, .float-actions button { width: 40px; height: 40px; }
    }
    @media (max-width: 460px) {
      h1 { font-size: 40px; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .button { width: 100%; }
      .about-brand { align-items: start; flex-direction: column; }
      .capability-list, .product-list { grid-template-columns: 1fr; }
      .service-grid, .industry-grid, .review-grid { grid-template-columns: 1fr; }
      .case-main { grid-template-columns: 1fr; }
      .case-small-image { grid-template-columns: 82px 1fr; }
      .network-list { grid-template-columns: 1fr; }
      .contact-form { grid-template-columns: 1fr; }
      .field-full, .form-footnote, .form-submit { grid-column: auto; }
      .footer-bottom { gap: 5px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }