:root {
      color-scheme: light;
      --ink: #26240f;
      --muted: #706d5d;
      --paper: #fffdf6;
      --cream: #fff9e6;
      --yellow: #f5cd28;
      --yellow-deep: #dfae00;
      --line: #e9e3cf;
      --olive: #5d602c;
      --white: #ffffff;
      --shadow: 0 18px 45px rgba(86, 72, 17, .10);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(255, 253, 246, .94);
      border-bottom: 1px solid rgba(233, 227, 207, .9);
      backdrop-filter: blur(14px);
    }
    .nav-wrap {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }
    .brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; flex: 0 0 auto; }
    .brand img { width: 42px; height: 42px; object-fit: contain; }
    .brand-name { font-weight: 850; font-size: 18px; letter-spacing: .02em; }
    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      padding: 9px 10px;
      color: #494632;
      font-size: 13px;
      font-weight: 650;
      text-decoration: none;
      border-radius: 999px;
      transition: background .2s ease, color .2s ease;
    }
    .nav-links a:hover, .nav-links a:focus-visible { background: #fff0a8; color: #211e0c; }
    .nav-links .nav-cta { margin-left: 8px; padding: 10px 16px; color: #241f08; background: var(--yellow); }
    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: var(--white);
      color: var(--ink);
      cursor: pointer;
    }
    .hero {
      position: relative;
      overflow: hidden;
      padding: 86px 0 76px;
      background:
        radial-gradient(ellipse at 83% 22%, rgba(255, 222, 79, .36), transparent 32%),
        linear-gradient(140deg, #fff9e6 0%, #fffdf6 54%, #fff2c2 100%);
    }
    .hero::before, .hero::after {
      position: absolute;
      z-index: 0;
      content: "";
      border: 1px solid rgba(217, 171, 0, .20);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero::before { width: 450px; height: 450px; right: -110px; top: -160px; }
    .hero::after { width: 330px; height: 330px; right: -50px; top: -100px; }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
      align-items: center;
      gap: 56px;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: #625724;
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .14em;
      text-transform: uppercase;
    }
    .eyebrow::before { width: 25px; height: 2px; background: var(--yellow-deep); content: ""; }
    h1 {
      max-width: 690px;
      margin: 18px 0 18px;
      font-size: clamp(38px, 6.3vw, 70px);
      line-height: 1.08;
      letter-spacing: -.055em;
    }
    .hero-copy { max-width: 610px; margin: 0; color: #5e5a47; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; }
    .button {
      display: inline-flex;
      min-height: 48px;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 12px 20px;
      border: 1px solid transparent;
      border-radius: 13px;
      color: #211e0c;
      background: var(--yellow);
      box-shadow: 0 8px 18px rgba(192, 147, 0, .14);
      font-weight: 800;
      text-decoration: none;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .button:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(192, 147, 0, .22); background: #ffda43; }
    .button:active { transform: translateY(0); }
    .button-outline { border-color: #d8cfad; background: rgba(255,255,255,.68); box-shadow: none; }
    .hero-aside {
      position: relative;
      padding: 26px;
      border: 1px solid rgba(220, 202, 126, .7);
      border-radius: 28px;
      background: rgba(255,255,255,.72);
      box-shadow: var(--shadow);
    }
    .hero-aside::before {
      position: absolute;
      top: -13px;
      right: 24px;
      width: 72px;
      height: 26px;
      border-radius: 50%;
      background: var(--yellow);
      content: "";
      transform: rotate(-18deg);
    }
    .hero-aside h2 { margin: 0 0 8px; font-size: 20px; }
    .hero-aside p { margin: 0; color: var(--muted); font-size: 14px; }
    .model-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .model-chips span, .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border: 1px solid #eee4bf;
      border-radius: 999px;
      background: #fff9df;
      color: #514824;
      font-size: 12px;
      font-weight: 700;
    }
    .hero-note { margin-top: 22px !important; padding-top: 16px; border-top: 1px solid var(--line); }
    .quick-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 42px; }
    .stat {
      padding: 17px 18px;
      border-left: 3px solid var(--yellow-deep);
      background: rgba(255,255,255,.55);
    }
    .stat strong { display: block; font-size: 20px; line-height: 1.25; }
    .stat span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
    .section { padding: 78px 0; }
    .section-soft { background: #fff8df; }
    .section-tint { background: #f7f4e8; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
    .section-head > div { max-width: 720px; }
    .kicker { margin: 0 0 9px; color: #82700e; font-size: 12px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
    h2 { margin: 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.18; letter-spacing: -.035em; }
    .section-intro { max-width: 540px; margin: 12px 0 0; color: var(--muted); }
    .text-link { color: #65540a; font-weight: 800; text-decoration-thickness: 1px; text-underline-offset: 4px; }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: start; }
    .intro-copy { color: #565344; font-size: 16px; }
    .intro-copy p { margin: 0 0 15px; }
    .feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .feature-line { padding: 15px 16px; border-bottom: 1px solid #ddd6bd; }
    .feature-line strong { display: block; margin-bottom: 4px; font-size: 15px; }
    .feature-line span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .service-card {
      min-width: 0;
      padding: 23px;
      border: 1px solid var(--line);
      border-radius: 18px 18px 18px 5px;
      background: var(--white);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .service-card:hover { transform: translateY(-4px); border-color: #e2c64c; box-shadow: var(--shadow); }
    .service-index { color: #9a8311; font-size: 11px; font-weight: 850; letter-spacing: .12em; }
    .service-card h3 { margin: 9px 0 8px; font-size: 18px; }
    .service-card p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-card .tag { margin-top: 14px; }
    .production-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 34px; align-items: start; }
    .production-aside { padding: 27px; border-radius: 24px; background: var(--ink); color: #fff8de; }
    .production-aside h3 { margin: 0 0 10px; font-size: 24px; }
    .production-aside p { margin: 0; color: #e5dfc7; font-size: 14px; }
    .production-aside .button { margin-top: 20px; }
    .workflow-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; counter-reset: flow; }
    .workflow-step { position: relative; padding: 19px 18px 19px 54px; border-top: 1px solid #d9d2bc; counter-increment: flow; }
    .workflow-step::before {
      position: absolute;
      top: 18px;
      left: 0;
      display: grid;
      width: 38px;
      height: 38px;
      place-items: center;
      border-radius: 50%;
      background: var(--yellow);
      color: #302907;
      content: counter(flow, decimal-leading-zero);
      font-size: 12px;
      font-weight: 850;
    }
    .workflow-step h3 { margin: 0 0 5px; font-size: 16px; }
    .workflow-step p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
    .industry-item { padding: 17px 16px; border: 1px solid #e4dcc2; border-radius: 12px; background: rgba(255,255,255,.72); }
    .industry-item strong { display: block; font-size: 14px; }
    .industry-item span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
    .network-box { padding: 28px; border: 1px solid #e3dcc6; border-radius: 24px; background: #fffdf6; }
    .network-box p { max-width: 780px; margin: 0; color: var(--muted); }
    .network-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
    .network-tags span { padding: 8px 12px; border-radius: 8px; background: #f3edda; color: #423e2d; font-size: 13px; font-weight: 700; }
    .case-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px; align-items: stretch; }
    .case-feature { overflow: hidden; border-radius: 20px; background: #f4e9bd; }
    .case-feature .media { aspect-ratio: 16 / 8; overflow: hidden; background: #eee4c8; }
    .case-feature img, .case-pair img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-feature figcaption { padding: 19px 22px; color: #49442e; font-size: 14px; }
    .case-feature figcaption strong { display: block; margin-bottom: 4px; color: var(--ink); font-size: 17px; }
    .case-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .case-pair figure { display: flex; overflow: hidden; flex-direction: column; margin: 0; border: 1px solid var(--line); border-radius: 16px; background: white; }
    .case-pair .media { aspect-ratio: 1 / 1; overflow: hidden; background: #f0ead7; }
    .case-pair figcaption { padding: 13px; color: var(--muted); font-size: 13px; }
    .case-pair figcaption strong { display: block; margin-bottom: 4px; color: var(--ink); }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; margin-top: 30px; }
    .review { padding: 20px; border-top: 2px solid var(--yellow-deep); background: rgba(255,255,255,.75); }
    .review blockquote { margin: 0; color: #514e40; font-size: 14px; }
    .review p { margin: 13px 0 0; color: #766c3c; font-size: 12px; font-weight: 800; }
    .comparison { overflow: hidden; border: 1px solid #e2dbc7; border-radius: 18px; background: #fff; }
    .score-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding: 24px; background: #fff3bf; }
    .score-head strong { font-size: 20px; }
    .score-badge { padding: 9px 14px; border-radius: 999px; background: #28250f; color: #fff4c1; font-weight: 850; }
    .table-scroll { overflow-x: auto; }
    table { width: 100%; border-collapse: collapse; min-width: 620px; }
    th, td { padding: 14px 17px; border-bottom: 1px solid #eee9dc; text-align: left; font-size: 14px; }
    th { background: #faf8ef; color: #605c4c; font-size: 12px; letter-spacing: .03em; }
    td:first-child { font-weight: 750; }
    td:last-child { color: #5c511c; }
    .comparison-note { margin: 0; padding: 13px 18px; color: var(--muted); font-size: 12px; }
    .token-layout { display: grid; grid-template-columns: 1fr .85fr; gap: 34px; align-items: center; }
    .token-points { display: grid; gap: 13px; margin-top: 21px; }
    .token-point { display: flex; gap: 13px; align-items: flex-start; }
    .token-point i { display: grid; width: 27px; height: 27px; flex: 0 0 auto; place-items: center; border-radius: 50%; background: var(--yellow); color: #2a250b; font-size: 13px; font-style: normal; font-weight: 900; }
    .token-point strong { display: block; font-size: 14px; }
    .token-point span { display: block; color: var(--muted); font-size: 13px; }
    .token-panel { padding: 25px; border-radius: 21px; background: #f1eddb; }
    .token-panel h3 { margin: 0 0 8px; font-size: 19px; }
    .token-panel p { margin: 0; color: var(--muted); font-size: 14px; }
    .token-panel .button { margin-top: 18px; }
    .faq-list { display: grid; gap: 9px; }
    details { border: 1px solid #e6dfca; border-radius: 13px; background: #fff; }
    summary { position: relative; padding: 17px 48px 17px 18px; cursor: pointer; list-style: none; font-weight: 750; }
    summary::-webkit-details-marker { display: none; }
    summary::after { position: absolute; top: 50%; right: 18px; color: #84700b; content: "+"; font-size: 21px; transform: translateY(-52%); }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 18px 18px; color: var(--muted); font-size: 14px; }
    .knowledge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .knowledge-block { padding: 24px; border-left: 3px solid var(--yellow-deep); background: #fff; }
    .knowledge-block h3 { margin: 0 0 8px; font-size: 19px; }
    .knowledge-block p { margin: 0; color: var(--muted); font-size: 14px; }
    .article-links, .partner-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 16px; }
    .article-links a, .partner-links a { display: inline-flex; padding: 8px 11px; border: 1px solid #e2dbc7; border-radius: 8px; background: #fff; color: #514721; font-size: 13px; font-weight: 700; text-decoration: none; }
    .article-links a:hover, .partner-links a:hover { border-color: #d4b22a; background: #fff8da; }
    .form-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 38px; align-items: start; }
    .contact-copy { padding: 24px; border-radius: 20px; background: #28250f; color: #fff7da; }
    .contact-copy h3 { margin: 0 0 10px; font-size: 23px; }
    .contact-copy p { margin: 0 0 17px; color: #e2dcc6; font-size: 14px; }
    .contact-copy a { color: #ffe06a; }
    .contact-copy ul { margin: 0; padding-left: 19px; color: #eee7cf; font-size: 13px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 750; }
    .field input, .field select, .field textarea {
      width: 100%;
      border: 1px solid #ddd6c1;
      border-radius: 10px;
      padding: 12px 13px;
      outline: none;
      background: #fff;
      color: var(--ink);
    }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: #c5a514; box-shadow: 0 0 0 3px rgba(245, 205, 40, .2); }
    .field textarea { min-height: 118px; resize: vertical; }
    .form-submit { grid-column: 1 / -1; justify-self: start; }
    .agency-strip { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 25px 0 0; border-top: 1px solid var(--line); }
    .agency-strip p { max-width: 700px; margin: 0; color: var(--muted); font-size: 14px; }
    .site-footer { padding: 33px 0 25px; background: #f1eddd; color: #373423; }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; padding-bottom: 22px; }
    .footer-brand { max-width: 420px; }
    .footer-brand strong { font-size: 18px; }
    .footer-brand p { margin: 7px 0 0; color: #625e4d; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; max-width: 540px; }
    .footer-links a { color: #4c472f; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { text-decoration: underline; }
    .copyright { padding-top: 15px; border-top: 1px solid #dcd5bf; color: #65604d; font-size: 12px; }
    .float-tools { position: fixed; z-index: 30; right: 18px; bottom: 20px; display: grid; gap: 9px; }
    .float-tools a, .float-tools button {
      display: grid;
      min-width: 48px;
      min-height: 48px;
      place-items: center;
      padding: 0 13px;
      border: 1px solid #e4d69b;
      border-radius: 15px;
      background: #fff4bf;
      color: #302907;
      box-shadow: 0 8px 24px rgba(60, 48, 4, .12);
      font-size: 12px;
      font-weight: 850;
      text-decoration: none;
      cursor: pointer;
    }
    .float-tools button { display: none; }
    .reveal { opacity: 0; transform: translateY(16px); 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; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 980px) {
      .nav-wrap { min-height: 70px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-links {
        position: absolute;
        top: calc(100% + 1px);
        right: 20px;
        left: 20px;
        display: none;
        align-items: stretch;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 15px;
        background: var(--paper);
        box-shadow: var(--shadow);
      }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2, 1fr); }
      .nav-links a { padding: 10px 12px; }
      .nav-links .nav-cta { margin: 4px 0 0; text-align: center; }
      .hero-grid { gap: 30px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-list { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .hero { padding: 63px 0 53px; }
      .hero-grid, .intro-grid, .production-layout, .token-layout, .form-layout, .case-grid, .knowledge-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 32px; }
      .hero-aside { max-width: 520px; }
      .quick-stats { grid-template-columns: repeat(2, 1fr); margin-top: 30px; }
      .section { padding: 58px 0; }
      .section-head { display: block; }
      .section-head > .text-link { display: inline-block; margin-top: 14px; }
      .service-grid { grid-template-columns: 1fr; }
      .industry-list { grid-template-columns: repeat(2, 1fr); }
      .review-grid { grid-template-columns: 1fr; }
      .case-pair { gap: 10px; }
      .workflow-list { grid-template-columns: 1fr; gap: 4px; }
      .footer-top { flex-direction: column; }
      .agency-strip { align-items: flex-start; flex-direction: column; }
      .contact-form { grid-template-columns: 1fr; }
      .field-full, .form-submit { grid-column: auto; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools button { display: grid; }
      .float-tools .float-mail { display: none; }
      .nav-links.is-open { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 420px) {
      .brand-name { font-size: 16px; }
      .brand img { width: 36px; height: 36px; }
      .hero-actions .button { width: 100%; }
      .industry-list { grid-template-columns: 1fr 1fr; }
      .case-pair { grid-template-columns: 1fr; }
      .case-pair .media { aspect-ratio: 16 / 10; }
    }