:root {
      color-scheme: light;
      --ink: #252a31;
      --muted: #626a73;
      --paper: #fffaf4;
      --white: #ffffff;
      --orange: #f05a24;
      --orange-dark: #c84116;
      --orange-pale: #fff0e4;
      --line: #eadfd5;
      --green: #216b56;
      --wrap: 1160px;
    }
    * { 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; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    .container { width: min(var(--wrap), calc(100% - 40px)); margin-inline: auto; }
    .topbar { position: sticky; top: 0; z-index: 20; background: rgba(255,250,244,.96); border-bottom: 1px solid rgba(234,223,213,.9); backdrop-filter: blur(12px); }
    .nav { 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; text-decoration: none; font-weight: 800; }
    .ai-page-logo { display: block; width: 38px; max-width: 100%; height: auto; }
    .brand-name { font-size: 17px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; min-width: 0; }
    .nav-links a { padding: 10px 9px; color: #454950; font-size: 13px; text-decoration: none; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--orange-dark); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px; border: 1px solid var(--orange); border-radius: 5px; background: var(--orange); color: #fff; font-weight: 700; text-decoration: none; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
    .nav-cta { flex: 0 0 auto; }
    .nav-cta:hover, .button:hover { transform: translateY(-2px); background: var(--orange-dark); box-shadow: 0 8px 20px rgba(200,65,22,.19); }
    .button.secondary { color: var(--orange-dark); background: transparent; }
    .button.secondary:hover { color: #fff; }
    .menu-toggle { display: none; min-width: 42px; min-height: 42px; border: 1px solid var(--line); border-radius: 5px; background: var(--white); color: var(--ink); cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 82px 0 60px; background: #fff4e9; border-bottom: 1px solid #f1dfcf; }
    .hero::before { position: absolute; inset: 0 0 auto auto; width: min(50vw, 600px); height: 100%; background: repeating-linear-gradient(135deg, transparent 0 25px, rgba(240,90,36,.055) 25px 27px); content: ""; pointer-events: none; }
    .hero-grid { position: relative; display: grid; grid-template-columns: minmax(0,1.3fr) minmax(280px,.7fr); align-items: center; gap: 64px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--orange-dark); font-size: 13px; font-weight: 800; }
    .eyebrow::before { width: 22px; height: 2px; background: currentColor; content: ""; }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 720px; margin: 16px 0 20px; font-size: clamp(38px, 6vw, 68px); line-height: 1.1; }
    .hero-copy { max-width: 650px; color: #545b62; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin: 18px 0 0; color: var(--muted); font-size: 13px; }
    .hero-panel { padding: 25px; border: 1px solid #f0d4bf; background: rgba(255,255,255,.8); box-shadow: 12px 12px 0 #f7e3d2; }
    .hero-panel h2 { margin-bottom: 7px; font-size: 17px; }
    .hero-panel > p { color: var(--muted); font-size: 13px; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .model-cloud span { padding: 6px 9px; border: 1px solid #efcdb4; background: #fff9f3; color: #574638; font-size: 12px; }
    .metrics { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 48px; border-top: 1px solid #e9d5c5; }
    .metric { padding: 22px 18px 0 0; }
    .metric strong { display: block; color: var(--orange-dark); font-size: 23px; }
    .metric span { color: var(--muted); font-size: 13px; }
    .section { padding: 76px 0; border-bottom: 1px solid #efe5dc; }
    .section.soft { background: #fff5ec; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head h2 { margin: 8px 0 0; font-size: clamp(27px,4vw,38px); line-height: 1.2; }
    .section-head p { max-width: 520px; margin-bottom: 2px; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 56px; }
    .intro-copy { font-size: 16px; color: #50565d; }
    .intro-copy strong { color: var(--ink); }
    .feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; margin: 0; padding: 0; list-style: none; }
    .feature-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .feature-list b { 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: 1px; border: 1px solid var(--line); background: var(--line); }
    .service { min-height: 160px; padding: 23px; background: var(--white); transition: background .2s ease, transform .2s ease; }
    .service:hover { position: relative; z-index: 1; background: #fff8f1; transform: translateY(-3px); }
    .service .num { color: var(--orange); font-size: 12px; font-weight: 800; }
    .service h3 { margin: 9px 0 7px; font-size: 18px; }
    .service p { margin: 0; color: var(--muted); font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; counter-reset: steps; }
    .step { position: relative; padding: 19px 24px 18px 0; border-top: 2px solid #efb28a; counter-increment: steps; }
    .step::before { display: block; margin: -33px 0 16px; color: var(--orange-dark); font-size: 13px; font-weight: 800; content: "0" counter(steps); }
    .step h3 { margin-bottom: 6px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 22px; }
    .industry { padding: 18px 0; border-top: 2px solid var(--orange); }
    .industry h3 { margin-bottom: 6px; font-size: 16px; }
    .industry p { margin: 0; color: var(--muted); font-size: 13px; }
    .network { display: grid; grid-template-columns: 1fr 1.3fr; gap: 36px; align-items: start; }
    .network-callout { padding: 22px 0; border-top: 2px solid var(--orange); border-bottom: 1px solid var(--line); }
    .network-callout strong { display: block; margin-bottom: 8px; font-size: 20px; }
    .network-callout p { margin: 0; color: var(--muted); }
    .network-list { display: flex; flex-wrap: wrap; gap: 9px; }
    .network-list span { padding: 8px 11px; border: 1px solid var(--line); background: var(--white); color: #454950; font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
    .case { padding: 20px 0; border-top: 1px solid var(--line); }
    .case img, .ai-page-image { display: block; width: 100%; max-width: 100%; height: auto; }
    .case-media { margin-bottom: 16px; overflow: hidden; background: #f3e5d9; }
    .case h3 { margin-bottom: 6px; font-size: 18px; }
    .case p { margin: 0; color: var(--muted); font-size: 14px; }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px 26px; }
    .review { padding: 18px 0; border-top: 2px solid #edb38f; }
    .review blockquote { margin: 0 0 12px; color: #42474c; font-size: 14px; }
    .review cite { color: var(--muted); font-size: 12px; font-style: normal; }
    .score-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 40px; align-items: start; }
    .score-panel { padding: 25px; background: #fff0e4; border-left: 4px solid var(--orange); }
    .score-panel strong { display: block; color: var(--orange-dark); font-size: 50px; line-height: 1.1; }
    .stars { margin: 10px 0; color: #d74d1f; font-size: 20px; }
    .score-panel p { margin: 0; color: var(--muted); font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--white); }
    table { width: 100%; min-width: 650px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 13px; }
    th { background: #fff2e8; color: #41362e; }
    td:last-child { color: var(--green); }
    .match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; }
    .match-copy { padding-top: 8px; }
    .match-copy p { color: var(--muted); }
    .match-copy ul { padding-left: 20px; color: #464b50; }
    .match-copy li { margin: 8px 0; }
    .form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 22px; border: 1px solid var(--line); background: var(--white); }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #d8d4d0; border-radius: 3px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 105px; resize: vertical; }
    .form .button { justify-self: start; cursor: pointer; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 36px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { position: absolute; top: 14px; right: 3px; color: var(--orange-dark); font-size: 22px; content: "+"; transition: transform .2s ease; }
    .faq-item[open] summary::after { transform: rotate(45deg); }
    .faq-item p { max-width: 850px; margin: -3px 0 17px; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5,1fr); gap: 18px; }
    .article { padding: 15px 0; border-top: 1px solid var(--line); text-decoration: none; }
    .article span { display: block; margin-bottom: 7px; color: var(--orange-dark); font-size: 12px; }
    .article strong { font-size: 14px; }
    .timeline { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
    .timeline article { padding: 18px 0 0; border-top: 2px solid var(--orange); }
    .timeline h3 { margin-bottom: 6px; font-size: 16px; }
    .timeline p { margin: 0; color: var(--muted); font-size: 13px; }
    .join-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 27px 0; border-top: 1px solid var(--line); }
    .join-band h3 { margin: 0 0 4px; font-size: 20px; }
    .join-band p { margin: 0; color: var(--muted); font-size: 14px; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: start; }
    .contact-details { display: grid; gap: 13px; }
    .contact-details p { margin: 0; color: var(--muted); }
    .contact-details a { color: var(--orange-dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .qr { width: min(180px, 100%); margin-top: 8px; padding: 8px; border: 1px solid var(--line); background: white; }
    .qr img { display: block; width: 100%; height: auto; }
    .footer { padding: 25px 0 30px; background: #fff3e8; color: #36383c; }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 25px; }
    .footer p { margin: 0; color: #62666a; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; max-width: 650px; }
    .footer-links a { color: #44484d; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { color: var(--orange-dark); }
    .copyright { margin-top: 18px !important; padding-top: 15px; border-top: 1px solid #ead9ca; }
    .floating { position: fixed; right: 18px; bottom: 22px; z-index: 15; display: grid; gap: 8px; }
    .floating a { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid #e5c7b1; background: #fff; color: var(--orange-dark); font-size: 13px; font-weight: 800; text-decoration: none; box-shadow: 0 4px 14px rgba(52,38,27,.1); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.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: 1020px) {
      .nav { gap: 12px; }
      .nav-links { gap: 0; }
      .nav-links a { padding-inline: 6px; font-size: 12px; }
      .nav-cta { padding-inline: 12px; font-size: 13px; }
      .hero-grid { gap: 36px; }
      .industry-grid { grid-template-columns: repeat(2,1fr); }
      .article-list { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--wrap), calc(100% - 32px)); }
      .nav { min-height: 64px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-cta { margin-left: auto; }
      .nav-links { position: absolute; top: 64px; right: 16px; left: 16px; display: none; align-items: stretch; padding: 8px; border: 1px solid var(--line); background: var(--white); box-shadow: 0 12px 24px rgba(44,33,25,.12); }
      .nav-links.open { display: grid; grid-template-columns: 1fr 1fr; }
      .nav-links a { padding: 11px; font-size: 14px; }
      .hero { padding: 58px 0 42px; }
      .hero-grid, .intro-grid, .network, .score-layout, .match-grid, .contact-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 34px; }
      h1 { font-size: clamp(38px, 11vw, 54px); }
      .hero-copy { font-size: 15px; }
      .hero-panel { max-width: 540px; }
      .metrics { grid-template-columns: 1fr 1fr; row-gap: 18px; margin-top: 35px; }
      .metric { padding-top: 16px; }
      .section { padding: 54px 0; }
      .section-head { display: block; }
      .section-head p { margin: 12px 0 0; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .service { min-height: 0; padding: 17px; }
      .workflow { grid-template-columns: 1fr 1fr; row-gap: 38px; padding-top: 22px; }
      .industry-grid { gap: 12px 20px; }
      .case-grid { gap: 14px; }
      .review-grid { grid-template-columns: 1fr 1fr; gap: 10px 20px; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .timeline { grid-template-columns: 1fr; gap: 18px; }
      .join-band, .footer-top { align-items: flex-start; flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .form { padding: 16px; }
    }
    @media (max-width: 440px) {
      .brand-name { font-size: 15px; }
      .ai-page-logo { width: 32px; }
      .nav-cta { min-height: 39px; padding-inline: 10px; font-size: 12px; }
      .hero-actions .button { width: 100%; }
      .service-grid, .review-grid, .industry-grid, .case-grid { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr; gap: 32px; }
      .form { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .article-list { grid-template-columns: 1fr; }
    }