:root {
      color-scheme: light;
      --ink: #20202b;
      --muted: #62616d;
      --paper: #fffaf2;
      --white: #ffffff;
      --line: #e8e2d9;
      --coral: #f05a45;
      --blue: #3549d5;
      --lime: #d7f36a;
      --violet: #7561e8;
      --container: 1160px;
      --shadow: 0 16px 42px rgba(41, 34, 65, .08);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid rgba(32, 32, 43, .08);
      background: rgba(255, 250, 242, .94);
      backdrop-filter: blur(14px);
    }
    .header-inner {
      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; flex: 0 0 auto; }
    .ai-page-logo { width: 42px; max-height: 42px; object-fit: contain; }
    .brand-name { font-size: 17px; font-weight: 850; letter-spacing: -.04em; }
    .brand-sub { display: block; color: var(--muted); font-size: 10px; line-height: 1.2; letter-spacing: .08em; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a {
      padding: 10px 11px;
      color: #454450;
      font-size: 13px;
      font-weight: 650;
      text-decoration: none;
      white-space: nowrap;
      transition: color .2s ease;
    }
    .nav-links a:hover { color: var(--coral); }
    .nav-cta, .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 19px;
      border: 0;
      border-radius: 999px;
      background: var(--blue);
      color: #fff;
      font-weight: 750;
      text-decoration: none;
      box-shadow: 0 8px 20px rgba(53, 73, 213, .2);
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
      cursor: pointer;
    }
    .nav-cta { min-height: 40px; padding: 0 16px; font-size: 13px; white-space: nowrap; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(53, 73, 213, .27); }
    .button.coral { background: var(--coral); box-shadow: 0 8px 20px rgba(240, 90, 69, .2); }
    .button.light { background: var(--white); color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 13px; background: var(--white); color: var(--ink); cursor: pointer; }
    .hero {
      position: relative;
      overflow: hidden;
      padding: 82px 0 66px;
      background:
        radial-gradient(ellipse at 84% 20%, rgba(215, 243, 106, .43), transparent 28%),
        radial-gradient(ellipse at 6% 88%, rgba(240, 90, 69, .11), transparent 35%),
        var(--paper);
    }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 54px; align-items: center; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin: 0 0 18px;
      color: var(--blue);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .12em;
      text-transform: uppercase;
    }
    .eyebrow::before { content: ""; width: 20px; height: 3px; border-radius: 3px; background: var(--coral); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 650px; margin-bottom: 18px; font-size: clamp(42px, 6vw, 72px); line-height: 1.08; letter-spacing: -.065em; }
    .hero-copy { max-width: 610px; color: #565562; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin: 20px 0 0; color: #66636e; font-size: 13px; }
    .hero-note strong { color: var(--ink); }
    .hero-visual {
      position: relative;
      min-height: 340px;
      display: grid;
      place-items: center;
      border: 1px solid rgba(53, 73, 213, .13);
      border-radius: 34px 34px 34px 8px;
      background: linear-gradient(145deg, #f3f1ff, #fff 63%, #fbf8e9);
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .hero-visual::before, .hero-visual::after { content: ""; position: absolute; border-radius: 50%; }
    .hero-visual::before { width: 230px; height: 230px; top: -70px; right: -40px; background: var(--lime); opacity: .85; }
    .hero-visual::after { width: 160px; height: 160px; bottom: -72px; left: -36px; background: #ff9c85; opacity: .7; }
    .orbit {
      position: relative;
      z-index: 1;
      width: min(78%, 300px);
      aspect-ratio: 1;
      display: grid;
      place-items: center;
      border: 1px dashed rgba(53, 73, 213, .42);
      border-radius: 50%;
      animation: orbit 28s linear infinite;
    }
    .orbit-core {
      width: 57%;
      aspect-ratio: 1;
      display: grid;
      place-items: center;
      border-radius: 35% 65% 61% 39% / 41% 42% 58% 59%;
      background: var(--blue);
      color: white;
      font-size: 22px;
      font-weight: 850;
      text-align: center;
      line-height: 1.35;
      box-shadow: 0 20px 40px rgba(53, 73, 213, .25);
      animation: morph 7s ease-in-out infinite;
    }
    .orbit-tag {
      position: absolute;
      padding: 8px 12px;
      border: 1px solid rgba(32, 32, 43, .08);
      border-radius: 999px;
      background: white;
      color: var(--ink);
      font-size: 12px;
      font-weight: 750;
      box-shadow: 0 8px 18px rgba(32, 32, 43, .08);
      animation: counter 28s linear infinite;
    }
    .orbit-tag.one { top: 7%; left: 13%; }
    .orbit-tag.two { top: 20%; right: -7%; }
    .orbit-tag.three { right: 1%; bottom: 18%; }
    .orbit-tag.four { bottom: 7%; left: 12%; }
    .orbit-tag.five { top: 47%; left: -14%; }
    .hero-strip { padding: 18px 0 26px; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .metric { padding: 17px 19px; border-left: 3px solid var(--coral); background: #fff; }
    .metric strong { display: block; font-size: 16px; letter-spacing: -.02em; }
    .metric span { color: var(--muted); font-size: 12px; }
    section.content-section { padding: 76px 0; }
    .section-head { max-width: 740px; margin-bottom: 30px; }
    .section-head h2 { margin-bottom: 11px; font-size: clamp(29px, 4vw, 44px); line-height: 1.17; letter-spacing: -.045em; }
    .section-head p { margin-bottom: 0; color: var(--muted); }
    .tint { background: #f3f0ff; }
    .blue-tint { background: #eaf0ff; }
    .lime-tint { background: #f5f8e7; }
    .about-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
    .about-copy { font-size: 16px; color: #4f4d59; }
    .about-copy p:last-child { margin-bottom: 0; }
    .feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .feature-item { padding: 17px; border: 1px solid #e8e3f1; border-radius: 16px; background: rgba(255,255,255,.83); }
    .feature-item strong { display: block; margin-bottom: 4px; font-size: 14px; }
    .feature-item span { color: var(--muted); font-size: 12px; }
    .services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .service-card {
      min-height: 190px;
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: 20px 20px 20px 5px;
      background: white;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .service-card:hover { transform: translateY(-5px); border-color: #c6c5f8; box-shadow: var(--shadow); }
    .service-index { display: inline-flex; min-width: 36px; height: 30px; align-items: center; justify-content: center; margin-bottom: 15px; border-radius: 10px; background: var(--lime); color: #272a16; font-size: 12px; font-weight: 850; }
    .service-card h3 { margin-bottom: 8px; font-size: 18px; }
    .service-card p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .tool-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 23px; }
    .tool-tags span { padding: 8px 12px; border: 1px solid #d9d7e6; border-radius: 999px; background: rgba(255,255,255,.74); color: #454450; font-size: 12px; }
    .production-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 32px; align-items: start; }
    .production-note { padding: 25px; border-radius: 22px; background: var(--blue); color: #fff; }
    .production-note h3 { margin-bottom: 10px; font-size: 22px; }
    .production-note p { margin-bottom: 17px; color: #e3e6ff; font-size: 14px; }
    .production-note a { color: #20202b; background: var(--lime); box-shadow: none; }
    .production-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .production-item { padding: 16px; border-bottom: 1px solid #d7d4ec; }
    .production-item strong { display: block; margin-bottom: 4px; }
    .production-item span { color: var(--muted); font-size: 13px; }
    .solution-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .solution { padding: 18px; border-radius: 16px; background: white; }
    .solution h3 { margin-bottom: 7px; font-size: 15px; }
    .solution p { margin-bottom: 0; color: var(--muted); font-size: 12px; }
    .network-band { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: center; padding: 27px; border: 1px solid #e5dfd5; border-radius: 24px; background: white; }
    .network-band h3 { margin-bottom: 8px; font-size: 22px; }
    .network-band p { margin: 0; color: var(--muted); }
    .network-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .network-points span { padding: 11px 13px; border-radius: 12px; background: #fff5dc; font-size: 13px; font-weight: 650; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
    .step { position: relative; padding: 18px 22px 18px 0; counter-increment: step; }
    .step::before { content: "0" counter(step); display: block; margin-bottom: 13px; color: var(--coral); font-size: 13px; font-weight: 850; letter-spacing: .1em; }
    .step:not(:last-child)::after { content: ""; position: absolute; top: 28px; left: 42px; right: 16px; height: 1px; background: #d8d4cb; }
    .step h3 { margin-bottom: 7px; font-size: 16px; }
    .step p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .case-card { overflow: hidden; border: 1px solid var(--line); border-radius: 21px; background: white; }
    .case-image { aspect-ratio: 16 / 8; display: grid; place-items: center; overflow: hidden; background: #f0edf9; }
    .case-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 19px 21px 21px; }
    .case-copy h3 { margin-bottom: 5px; font-size: 17px; }
    .case-copy p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .review-bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 24px; padding: 22px 25px; border-radius: 20px; background: #20202b; color: #fff; }
    .review-bar h3 { margin: 0; font-size: 18px; }
    .score { display: flex; align-items: center; gap: 14px; }
    .score strong { color: var(--lime); font-size: 34px; line-height: 1; }
    .stars { color: #ffd166; letter-spacing: 2px; }
    .score small { display: block; color: #d7d5df; font-size: 11px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: white; }
    .comparison { width: 100%; min-width: 680px; border-collapse: collapse; text-align: left; }
    .comparison th, .comparison td { padding: 14px 17px; border-bottom: 1px solid #eee9e1; vertical-align: top; }
    .comparison th { background: #f4f1ff; font-size: 13px; }
    .comparison td { color: #55535e; font-size: 13px; }
    .comparison td:first-child { color: var(--ink); font-weight: 750; }
    .comparison tr:last-child td { border-bottom: 0; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; align-items: start; }
    .match-copy { padding: 25px 0; }
    .match-copy h3 { font-size: 23px; line-height: 1.3; }
    .match-copy p { color: var(--muted); }
    .match-form { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; padding: 24px; border: 1px solid #e7e1d9; border-radius: 22px; background: white; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 12px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #ddd8d0; border-radius: 11px; background: #fffdfa; color: var(--ink); outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(53,73,213,.1); }
    .field textarea { min-height: 106px; resize: vertical; }
    .match-form .button { grid-column: 1 / -1; justify-self: start; }
    .token-panel { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 26px 29px; border-radius: 22px; background: var(--lime); }
    .token-panel h3 { margin-bottom: 7px; font-size: 22px; }
    .token-panel p { max-width: 700px; margin: 0; color: #434433; font-size: 14px; }
    .token-panel .button { background: var(--ink); box-shadow: none; }
    .quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .quote { padding: 19px; border: 1px solid var(--line); border-radius: 18px 18px 5px 18px; background: white; }
    .quote p { margin-bottom: 15px; color: #4f4d59; font-size: 13px; }
    .quote strong { font-size: 12px; }
    .quote span { display: block; color: var(--muted); font-size: 11px; }
    .help-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
    .help-block { padding: 22px; border-left: 3px solid var(--coral); background: white; }
    .help-block h3 { margin-bottom: 9px; font-size: 17px; }
    .help-block p { margin: 0; color: var(--muted); font-size: 13px; }
    .faq-list { display: grid; gap: 9px; }
    .faq-list details { border: 1px solid var(--line); border-radius: 14px; background: white; }
    .faq-list summary { position: relative; padding: 16px 48px 16px 17px; cursor: pointer; list-style: none; font-weight: 750; font-size: 14px; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); color: var(--blue); font-size: 22px; font-weight: 500; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-answer { padding: 0 17px 16px; color: var(--muted); font-size: 13px; }
    .faq-answer p { margin: 0; }
    .article-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-links a { padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: white; color: var(--ink); text-decoration: none; font-size: 13px; font-weight: 700; transition: transform .2s ease, border-color .2s ease; }
    .article-links a:hover { transform: translateY(-3px); border-color: var(--coral); }
    .article-links span { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; font-weight: 500; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
    .contact-card { padding: 23px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
    .contact-card h3 { margin-bottom: 13px; font-size: 19px; }
    .contact-list { display: grid; gap: 8px; color: #4f4d59; font-size: 13px; }
    .contact-list a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .qr-wrap { display: flex; align-items: center; gap: 18px; margin-top: 18px; }
    .qr-wrap img { width: 112px; aspect-ratio: 1; object-fit: contain; border: 1px solid var(--line); border-radius: 12px; background: white; }
    .qr-wrap span { color: var(--muted); font-size: 12px; }
    .franchise { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 17px; padding: 22px 24px; border-radius: 20px; background: #fbe6df; }
    .franchise h3 { margin-bottom: 5px; font-size: 18px; }
    .franchise p { margin: 0; color: #5e4a48; font-size: 13px; }
    .links-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 19px; }
    .links-cloud a { padding: 7px 11px; border: 1px solid rgba(32,32,43,.15); border-radius: 999px; color: #393743; font-size: 12px; text-decoration: none; }
    .links-cloud a:hover { border-color: var(--blue); color: var(--blue); }
    .site-footer { padding: 23px 0; border-top: 1px solid #e4ded5; background: #f6f0e6; color: #393743; }
    .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; font-size: 12px; }
    .footer-inner p { margin: 0; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 14px; }
    .footer-links a { color: #393743; text-decoration: none; }
    .to-top {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 15;
      width: 45px;
      height: 45px;
      border: 0;
      border-radius: 50%;
      background: var(--coral);
      color: white;
      font-size: 20px;
      cursor: pointer;
      box-shadow: 0 8px 22px rgba(240,90,69,.3);
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: .2s ease;
    }
    .to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
    .reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.in-view { opacity: 1; transform: translateY(0); }
    @keyframes orbit { to { transform: rotate(360deg); } }
    @keyframes counter { to { transform: rotate(-360deg); } }
    @keyframes morph { 0%,100% { border-radius: 35% 65% 61% 39% / 41% 42% 58% 59%; } 50% { border-radius: 58% 42% 38% 62% / 51% 63% 37% 49%; } }
    @media (max-width: 980px) {
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .nav-cta { padding-inline: 12px; }
      .hero-grid { gap: 28px; }
      .solution-row { grid-template-columns: repeat(2, 1fr); }
      .article-links { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-inner { min-height: 66px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-links {
        position: absolute;
        top: 65px;
        left: 0;
        right: 0;
        display: none;
        align-items: stretch;
        padding: 10px 16px 16px;
        border-bottom: 1px solid var(--line);
        background: var(--paper);
      }
      .nav-links.open { display: grid; grid-template-columns: repeat(2, 1fr); }
      .nav-links a { padding: 10px 12px; font-size: 14px; }
      .nav-cta { display: none; }
      .hero { padding: 55px 0 42px; }
      .hero-grid, .about-layout, .production-layout, .match-layout, .contact-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 35px; }
      .hero-visual { min-height: 285px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      section.content-section { padding: 57px 0; }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .steps { grid-template-columns: repeat(2, 1fr); row-gap: 12px; }
      .step:not(:last-child)::after { display: none; }
      .quotes { grid-template-columns: repeat(2, 1fr); }
      .network-band { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 520px) {
      .brand-name { font-size: 15px; }
      .brand-sub { font-size: 9px; }
      h1 { font-size: 43px; }
      .hero-copy { font-size: 15px; }
      .hero-actions .button { flex: 1 1 100%; }
      .hero-visual { min-height: 250px; }
      .metrics, .services-grid, .feature-list, .production-list, .solution-row, .steps, .case-grid, .quotes, .help-grid, .article-links { grid-template-columns: 1fr; }
      .metric { padding: 14px 16px; }
      .service-card { min-height: 0; }
      .match-form { grid-template-columns: 1fr; padding: 18px; }
      .field.full, .match-form .button { grid-column: auto; }
      .token-panel { grid-template-columns: 1fr; }
      .token-panel .button { justify-self: start; }
      .franchise { align-items: flex-start; flex-direction: column; }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .qr-wrap { align-items: flex-start; }
      .score { width: 100%; }
    }
    @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; }
    }