:root {
      color-scheme: light;
      --ink: #18372f;
      --muted: #61766d;
      --green: #17865e;
      --green-dark: #116749;
      --mint: #dff2e7;
      --mint-soft: #f2faf4;
      --line: #d9e9df;
      --paper: #ffffff;
      --surface: #f7fbf7;
      --gold: #a67325;
      --container: 1160px;
      --shadow: 0 16px 42px rgba(29, 78, 55, .08);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      color: var(--ink);
      background:
        radial-gradient(ellipse at 8% 7%, rgba(202, 236, 215, .42), transparent 30rem),
        linear-gradient(180deg, #f4faf5 0%, #fbfdfb 43%, #f3f9f4 100%);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    img { max-width: 100%; height: auto; }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(248, 252, 248, .94);
      border-bottom: 1px solid rgba(217, 233, 223, .86);
      backdrop-filter: blur(16px);
    }
    .header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
    .ai-page-logo { display: block; width: 42px; max-width: 100%; height: auto; }
    .nav-wrap { display: flex; align-items: center; gap: 18px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 9px 10px; color: #466056; text-decoration: none; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--green); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 10px 18px; border: 1px solid var(--green);
      border-radius: 999px; background: var(--green); color: #fff; text-decoration: none;
      font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .nav-cta:hover, .button:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 9px 22px rgba(23, 134, 94, .2); }
    .button-outline { color: var(--green-dark); background: #fff; border-color: #bddbc9; }
    .button-outline:hover { color: #fff; }
    .menu-toggle { display: none; border: 1px solid var(--line); color: var(--ink); background: #fff; border-radius: 12px; padding: 9px 12px; cursor: pointer; }

    .hero { position: relative; overflow: hidden; padding: 76px 0 58px; }
    .hero::before, .hero::after { content: ""; position: absolute; z-index: -1; border-radius: 50%; pointer-events: none; }
    .hero::before { width: 380px; height: 380px; right: -110px; top: 10px; background: radial-gradient(circle, rgba(162, 221, 184, .43), rgba(162, 221, 184, 0) 70%); }
    .hero::after { width: 260px; height: 260px; left: -120px; bottom: -50px; border: 1px solid rgba(23, 134, 94, .13); box-shadow: 0 0 0 28px rgba(23, 134, 94, .025), 0 0 0 58px rgba(23, 134, 94, .02); }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(310px, .9fr); gap: 54px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: #6db88a; }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 700px; margin-bottom: 20px; font-size: clamp(38px, 6vw, 66px); line-height: 1.12; letter-spacing: -.045em; }
    .hero-copy { max-width: 620px; margin-bottom: 28px; color: #506a5e; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
    .hero-note { margin: 18px 0 0; color: #70847a; font-size: 13px; }
    .hero-console { padding: 24px; border: 1px solid rgba(169, 209, 182, .7); border-radius: 26px; background: rgba(255, 255, 255, .83); box-shadow: var(--shadow); }
    .console-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid #e7f0e9; }
    .console-label { font-size: 13px; color: var(--muted); }
    .live-pill { display: inline-flex; align-items: center; gap: 7px; padding: 5px 10px; border-radius: 999px; background: #e9f6ec; color: #276d4b; font-size: 11px; font-weight: 700; }
    .live-pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #4cb579; box-shadow: 0 0 0 4px rgba(76, 181, 121, .13); }
    .console-title { margin: 18px 0 14px; font-size: 21px; }
    .model-chips { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-chips span, .tag { padding: 7px 11px; border: 1px solid #d9eade; border-radius: 999px; background: #f6fbf7; color: #426451; font-size: 12px; }
    .console-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 21px; }
    .flow-node { padding: 12px 9px; border-radius: 14px; background: #eef7f0; text-align: center; color: #426451; font-size: 12px; }
    .flow-node strong { display: block; margin-bottom: 3px; color: var(--ink); font-size: 13px; }
    .console-foot { margin: 16px 0 0; padding-top: 14px; border-top: 1px solid #e7f0e9; color: #64786e; font-size: 12px; }

    .section { padding: 66px 0; }
    .section-heading { max-width: 720px; margin-bottom: 30px; }
    .section-heading h2 { margin-bottom: 10px; font-size: clamp(27px, 4vw, 40px); line-height: 1.2; letter-spacing: -.025em; }
    .section-heading p { margin-bottom: 0; color: var(--muted); }
    .section-kicker { margin-bottom: 9px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
    .intro-band { padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(120deg, #fff, #eff8f1); }
    .intro-band p:last-child { margin-bottom: 0; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 22px; }
    .metric { padding: 17px 18px; border-left: 3px solid #71bd8d; background: rgba(255,255,255,.72); }
    .metric strong { display: block; margin-bottom: 4px; font-size: 16px; }
    .metric span { color: var(--muted); font-size: 12px; }

    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .service-card { padding: 22px; border: 1px solid var(--line); border-radius: 19px; background: rgba(255,255,255,.87); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
    .service-card:hover { transform: translateY(-4px); border-color: #afd3bb; box-shadow: var(--shadow); }
    .service-index { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; margin-bottom: 15px; border-radius: 12px; background: #e7f5eb; color: var(--green-dark); font-weight: 800; font-size: 13px; }
    .service-card h3 { margin-bottom: 8px; font-size: 18px; }
    .service-card p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .service-card ul { padding-left: 18px; margin: 12px 0 0; color: #536b60; font-size: 13px; }
    .service-card li + li { margin-top: 5px; }

    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; counter-reset: step; }
    .workflow article { position: relative; padding: 23px 20px 20px; border-top: 2px solid #8ac69e; background: rgba(255,255,255,.82); }
    .workflow article::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 22px; color: #82b994; font-size: 13px; font-weight: 800; letter-spacing: .1em; }
    .workflow h3 { margin-bottom: 7px; font-size: 17px; }
    .workflow p { margin-bottom: 0; color: var(--muted); font-size: 13px; }

    .solution-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 25px; align-items: start; }
    .solution-aside { padding: 25px; border-radius: 21px; background: #e8f4eb; }
    .solution-aside h3 { margin-bottom: 11px; font-size: 21px; }
    .solution-aside p { color: #526c5e; font-size: 14px; }
    .solution-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .solution-item { padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
    .solution-item h3 { margin-bottom: 6px; font-size: 15px; }
    .solution-item p { margin-bottom: 0; color: var(--muted); font-size: 13px; }

    .network-band { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; padding: 30px; border-radius: 24px; background: #173e32; color: #fff; }
    .network-band h2 { margin-bottom: 10px; font-size: 28px; }
    .network-band p { margin-bottom: 0; color: #d1e5d8; }
    .network-band .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .network-band .tag { border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.09); color: #f0faf2; }

    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .case-card { overflow: hidden; border: 1px solid var(--line); border-radius: 19px; background: #fff; transition: transform .22s ease, box-shadow .22s ease; }
    .case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .case-image { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #e9f3eb; }
    .case-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-body { padding: 18px; }
    .case-body h3 { margin-bottom: 7px; font-size: 17px; }
    .case-body p { margin-bottom: 0; color: var(--muted); font-size: 13px; }

    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review-card { padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.9); }
    .review-card blockquote { margin: 0 0 16px; color: #405c4d; font-size: 14px; }
    .review-card cite { color: var(--green-dark); font-size: 12px; font-style: normal; font-weight: 800; }
    .review-note { margin: 15px 0 0; color: #718278; font-size: 12px; }

    .score-panel { display: grid; grid-template-columns: .7fr 1.3fr; gap: 24px; align-items: stretch; }
    .score-card { display: flex; flex-direction: column; justify-content: center; padding: 28px; border-radius: 22px; background: #e7f4e9; }
    .score-card span { color: #52715e; font-size: 13px; }
    .score-card strong { display: block; margin: 5px 0; color: var(--green-dark); font-size: 53px; line-height: 1; }
    .stars { color: #a67325; letter-spacing: .1em; font-size: 20px; }
    .score-card small { margin-top: 12px; color: #61766d; font-size: 11px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
    table { width: 100%; border-collapse: collapse; min-width: 600px; }
    th, td { padding: 13px 15px; border-bottom: 1px solid #e9f0ea; text-align: left; vertical-align: top; font-size: 13px; }
    th { color: #315542; background: #edf7ef; font-size: 12px; }
    tbody tr:last-child td { border-bottom: 0; }

    .token-panel { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 26px; border: 1px solid #cfe4d4; border-radius: 21px; background: linear-gradient(110deg, #fff, #eef8f0); }
    .token-panel h3 { margin-bottom: 8px; font-size: 21px; }
    .token-panel p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .token-check { display: inline-flex; align-items: center; gap: 8px; padding: 12px 16px; border-radius: 12px; background: #e5f3e8; color: var(--green-dark); text-decoration: none; font-weight: 800; white-space: nowrap; }

    .faq-list { display: grid; gap: 9px; }
    details { border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.9); }
    summary { position: relative; padding: 16px 48px 16px 18px; color: var(--ink); font-weight: 700; cursor: pointer; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; top: 50%; right: 18px; transform: translateY(-50%); color: var(--green); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { padding: 0 18px 16px; margin: 0; color: var(--muted); font-size: 14px; }

    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-link { display: flex; min-height: 112px; flex-direction: column; justify-content: space-between; padding: 17px; border: 1px solid var(--line); border-radius: 15px; background: #fff; text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { transform: translateY(-3px); border-color: #a9d2b7; }
    .article-link strong { font-size: 14px; }
    .article-link span { color: var(--green); font-size: 12px; }

    .join-band { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 27px; border: 1px solid #cce2d2; border-radius: 22px; background: #fff; }
    .join-band h2 { margin-bottom: 7px; font-size: 24px; }
    .join-band p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 25px; align-items: start; }
    .contact-card { padding: 24px; border-radius: 21px; background: #e9f5ec; }
    .contact-card h3 { margin-bottom: 12px; font-size: 21px; }
    .contact-list { display: grid; gap: 11px; margin: 0; padding: 0; list-style: none; }
    .contact-list li { color: #466253; font-size: 14px; }
    .contact-list a { color: var(--green-dark); font-weight: 700; }
    .qr-wrap { width: 150px; margin-top: 18px; padding: 9px; border: 1px solid #cfe3d4; border-radius: 13px; background: #fff; }
    .qr-wrap img { display: block; width: 100%; height: auto; }
    .contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; padding: 24px; border: 1px solid var(--line); border-radius: 21px; background: #fff; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { color: #3d5c4a; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 12px 13px; border: 1px solid #d6e5da; border-radius: 11px; outline: none; background: #fbfdfb; color: var(--ink); }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: #67af80; box-shadow: 0 0 0 3px rgba(103, 175, 128, .13); }
    .field textarea { min-height: 115px; resize: vertical; }
    .contact-form button { justify-self: start; cursor: pointer; }

    .site-footer { padding: 28px 0 20px; border-top: 1px solid var(--line); background: #edf6ef; color: #294638; }
    .footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 28px; }
    .footer-top p { max-width: 510px; margin: 9px 0 0; color: #5b7164; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: flex-end; }
    .footer-links a { color: #346349; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { text-decoration: underline; }
    .copyright { margin: 20px 0 0; padding-top: 14px; border-top: 1px solid #d9e8dd; color: #62766a; font-size: 12px; }

    .floating-tools { position: fixed; z-index: 15; right: max(16px, calc((100vw - var(--container)) / 2 - 58px)); bottom: 22px; display: grid; gap: 8px; }
    .floating-tools a, .floating-tools button { display: inline-flex; align-items: center; justify-content: center; min-width: 46px; min-height: 46px; padding: 8px 12px; border: 1px solid #cfe2d4; border-radius: 999px; background: #fff; color: var(--green-dark); text-decoration: none; font-size: 12px; font-weight: 800; box-shadow: 0 8px 24px rgba(33, 77, 52, .12); cursor: pointer; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes floatSoft { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
    .hero-console { animation: floatSoft 6s ease-in-out infinite; }

    @media (max-width: 1000px) {
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .header-inner { gap: 10px; }
      .nav-wrap { gap: 9px; }
      .nav-cta { padding-inline: 13px; }
      .hero-grid { gap: 30px; }
      .article-list { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 800px) {
      .menu-toggle { display: inline-flex; align-items: center; gap: 7px; }
      .header-inner { min-height: 68px; }
      .nav-wrap { margin-left: auto; }
      .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 12px 20px 18px; border-bottom: 1px solid var(--line); background: #f8fcf8; box-shadow: 0 14px 24px rgba(24, 55, 47, .08); }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2, 1fr); align-items: stretch; }
      .nav-links a { padding: 10px 8px; font-size: 14px; }
      .hero { padding: 54px 0 44px; }
      .hero-grid, .solution-layout, .network-band, .score-panel, .contact-grid { grid-template-columns: 1fr; }
      .hero-console { max-width: 580px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .workflow { grid-template-columns: repeat(2, 1fr); }
      .case-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .floating-tools { right: 12px; bottom: 12px; }
      .floating-tools a, .floating-tools button { min-width: 42px; min-height: 42px; }
    }
    @media (max-width: 560px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .brand { gap: 8px; font-size: 14px; }
      .ai-page-logo { width: 36px; }
      .nav-cta { min-height: 39px; padding: 8px 12px; font-size: 12px; }
      .menu-toggle { padding: 8px 9px; font-size: 12px; }
      .hero { padding-top: 43px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 15px; }
      .hero-actions { align-items: stretch; }
      .hero-actions .button { flex: 1 1 150px; }
      .hero-console { padding: 19px; border-radius: 20px; }
      .section { padding: 48px 0; }
      .service-grid, .solution-list, .case-grid, .review-grid, .workflow, .article-list { grid-template-columns: 1fr; }
      .metrics { gap: 8px; }
      .metric { padding: 13px; }
      .network-band { padding: 23px; }
      .token-panel, .join-band { grid-template-columns: 1fr; display: grid; }
      .token-check { justify-self: start; }
      .contact-form { grid-template-columns: 1fr; padding: 19px; }
      .field-full { grid-column: auto; }
      .footer-top { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .floating-tools { gap: 6px; }
      .floating-tools a, .floating-tools button { padding: 7px 10px; font-size: 11px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }