:root {
      color-scheme: light;
      --ink: #211a30;
      --muted: #696477;
      --paper: #fbfaff;
      --white: #fff;
      --line: #e9e3f2;
      --purple: #7044d8;
      --purple-dark: #48269f;
      --pink: #d957a7;
      --mint: #169b83;
      --amber: #ad6a18;
      --shadow: 0 14px 36px rgba(58, 35, 96, .09);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(255,255,255,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .header-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; }
    .ai-page-logo { display: block; width: 38px; max-width: 100%; height: auto; }
    .brand-name { font-size: 18px; letter-spacing: 0; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 8px 9px; color: #514a5e; font-size: 12px; transition: color .2s ease; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--purple); }
    .nav-cta, .button {
      display: inline-flex;
      min-height: 44px;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 18px;
      border: 0;
      border-radius: 7px;
      background: var(--purple);
      color: white;
      font-weight: 700;
      cursor: pointer;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta { min-height: 38px; padding: 7px 14px; white-space: nowrap; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--purple-dark); box-shadow: 0 8px 20px rgba(81, 47, 153, .22); }
    .button-light { color: var(--purple-dark); background: white; }
    .button-light:hover { background: #f4efff; color: var(--purple-dark); }
    .button-outline { border: 1px solid #cbb8f0; background: transparent; color: var(--purple-dark); }
    .button-outline:hover { background: #f3edff; }
    .menu-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 6px; background: white; color: var(--ink); cursor: pointer; }
    .menu-toggle span, .menu-toggle::before, .menu-toggle::after { display: block; width: 17px; height: 2px; background: currentColor; content: ""; }
    .menu-toggle span { margin: 4px 0; }
    .hero {
      position: relative;
      overflow: hidden;
      padding: 76px 0 64px;
      background: linear-gradient(125deg, #f0eaff 0%, #fbf9ff 54%, #fff0f8 100%);
      border-bottom: 1px solid #e7dcf5;
    }
    .hero::before, .hero::after { position: absolute; z-index: 0; border: 1px solid rgba(112,68,216,.18); border-radius: 50%; content: ""; pointer-events: none; }
    .hero::before { width: 420px; height: 420px; right: -150px; top: -215px; }
    .hero::after { width: 280px; height: 280px; right: -78px; top: -145px; }
    .hero-content { position: relative; z-index: 1; max-width: 840px; }
    .eyebrow { margin: 0 0 15px; color: var(--purple-dark); font-size: 13px; font-weight: 800; letter-spacing: 0; }
    h1 { max-width: 760px; margin: 0; font-size: clamp(38px, 6vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 710px; margin: 20px 0 25px; color: #534a63; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin-top: 18px; color: #645b71; font-size: 13px; }
    .hero-note strong { color: var(--purple-dark); }
    .hero-stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; margin-top: 48px; border: 1px solid #e4daf2; background: #e4daf2; }
    .hero-stat { padding: 18px 20px; background: rgba(255,255,255,.83); }
    .hero-stat strong { display: block; color: var(--purple-dark); font-size: 21px; }
    .hero-stat span { color: var(--muted); font-size: 12px; }
    .section { padding: 68px 0; }
    .section-tint { background: #f4f0fb; border-block: 1px solid #e9e1f3; }
    .section-head { max-width: 730px; margin-bottom: 30px; }
    .section-head h2 { margin: 0 0 10px; font-size: clamp(27px, 4vw, 38px); line-height: 1.25; letter-spacing: 0; }
    .section-head p { margin: 0; color: var(--muted); }
    .kicker { margin: 0 0 8px; color: var(--pink); font-size: 12px; font-weight: 800; letter-spacing: 0; }
    .intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: start; }
    .intro-grid p { margin: 0 0 13px; color: #514a5e; }
    .principles { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; border-top: 1px solid var(--line); }
    .principle { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .principle strong { display: block; margin-bottom: 3px; color: var(--purple-dark); }
    .principle span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
    .service-item { min-height: 152px; padding: 20px; border: 1px solid var(--line); border-top: 3px solid var(--purple); background: white; transition: transform .2s ease, box-shadow .2s ease; }
    .service-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .service-item h3, .case-card h3, .review h3 { margin: 0 0 7px; font-size: 17px; }
    .service-item p, .case-card p { margin: 0; color: var(--muted); font-size: 13px; }
    .flow { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 0; counter-reset: flow; }
    .flow-step { position: relative; padding: 18px 17px 18px 0; border-top: 1px solid #cfc1e6; counter-increment: flow; }
    .flow-step::before { display: block; width: 32px; height: 32px; margin: -35px 0 12px; border: 1px solid #b9a3df; border-radius: 50%; background: var(--paper); color: var(--purple-dark); text-align: center; line-height: 30px; font-size: 13px; font-weight: 800; content: counter(flow, decimal-leading-zero); }
    .flow-step h3 { margin: 0 0 5px; font-size: 15px; }
    .flow-step p { margin: 0; color: var(--muted); font-size: 12px; }
    .split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
    .industry-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
    .industry-list div { padding: 12px 0; border-bottom: 1px solid var(--line); }
    .industry-list strong { display: block; font-size: 14px; }
    .industry-list span { color: var(--muted); font-size: 12px; }
    .network-box { padding: 22px; border-left: 3px solid var(--pink); background: #fff; }
    .network-box h3 { margin: 0 0 8px; font-size: 18px; }
    .network-box p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag { padding: 6px 10px; border: 1px solid #dfd5ef; background: white; color: #51456b; font-size: 12px; }
    .case-grid, .review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
    .case-card { overflow: hidden; border: 1px solid var(--line); background: white; }
    .media-frame { aspect-ratio: 16 / 9; overflow: hidden; background: #ece7f3; }
    .media-frame img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 17px; }
    .case-square { aspect-ratio: 1 / 1; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; min-width: 700px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #f1ebfa; color: var(--purple-dark); font-size: 13px; }
    td { color: #514a5e; font-size: 13px; }
    tr:last-child td { border-bottom: 0; }
    .rating-band { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding: 19px 22px; background: #efe8fb; }
    .rating-score { color: var(--purple-dark); font-size: 24px; font-weight: 800; white-space: nowrap; }
    .rating-stars { color: #b56b10; font-size: 18px; letter-spacing: 0; }
    .review { padding: 19px; border: 1px solid var(--line); background: white; }
    .review p { margin: 0 0 12px; color: #514a5e; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .review-mark { display: block; margin-bottom: 6px; color: var(--pink); font-size: 23px; line-height: 1; }
    .token-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 35px; align-items: center; }
    .token-highlight { padding: 24px; border-left: 4px solid var(--mint); background: #e8f6f2; }
    .token-highlight strong { display: block; margin-bottom: 6px; color: #126a5c; font-size: 19px; }
    .token-highlight p { margin: 0; color: #44645e; font-size: 13px; }
    .article-links { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 24px; }
    .article-links a { padding: 13px 0; border-bottom: 1px solid var(--line); color: #4e3a78; font-size: 14px; }
    .article-links a:hover { color: var(--pink); }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 36px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    summary::-webkit-details-marker { display: none; }
    summary::after { position: absolute; right: 5px; color: var(--purple); content: "+"; font-size: 20px; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: 0 0 17px; color: var(--muted); font-size: 14px; }
    .form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .contact-info p { color: var(--muted); }
    .contact-info a { color: var(--purple-dark); }
    .contact-list { padding: 0; margin: 18px 0 0; list-style: none; }
    .contact-list li { padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .request-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: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #d9d1e4; border-radius: 4px; background: white; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-status { grid-column: 1 / -1; margin: 0; color: var(--mint); font-size: 13px; }
    .footer { padding: 25px 0; border-top: 1px solid var(--line); background: #f0edf5; color: #373040; }
    .footer-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .footer p { margin: 0; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; }
    .footer-links a { color: #514365; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 22px; display: grid; gap: 8px; }
    .float-contact a { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 9px 13px; border: 1px solid #d9ccec; background: white; color: var(--purple-dark); box-shadow: 0 5px 18px rgba(43,27,68,.12); font-size: 12px; font-weight: 700; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    :focus-visible { outline: 3px solid #d8c5ff; outline-offset: 3px; }
    @media (max-width: 980px) {
      .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 12px 20px 18px; border-bottom: 1px solid var(--line); background: white; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(3,1fr); }
      .nav-links a { padding: 10px; }
      .menu-toggle { display: inline-flex; }
      .header-actions { display: flex; align-items: center; gap: 9px; }
      .service-grid, .case-grid, .review-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .hero-stats { grid-template-columns: repeat(2,minmax(0,1fr)); }
    }
    @media (max-width: 640px) {
      .container { width: min(100% - 30px, 1160px); }
      .header-row { min-height: 64px; }
      .nav-links { top: 64px; grid-template-columns: repeat(2,1fr) !important; }
      .nav-cta { display: none; }
      .hero { padding: 56px 0 42px; }
      h1 { font-size: 40px; }
      .hero-copy { font-size: 15px; }
      .hero-stats { margin-top: 34px; }
      .hero-stat { padding: 14px; }
      .section { padding: 50px 0; }
      .intro-grid, .split-grid, .token-layout, .form-layout { grid-template-columns: 1fr; gap: 24px; }
      .service-grid, .case-grid, .review-grid { grid-template-columns: 1fr; }
      .flow { grid-template-columns: 1fr; gap: 12px; padding-left: 14px; border-left: 1px solid #cfc1e6; }
      .flow-step { padding: 0 0 8px 18px; border-top: 0; }
      .flow-step::before { position: absolute; top: 0; left: -31px; margin: 0; }
      .industry-list { grid-template-columns: 1fr; }
      .rating-band { align-items: flex-start; flex-direction: column; }
      .article-links { grid-template-columns: 1fr; }
      .request-form { grid-template-columns: 1fr; }
      .field-full, .form-status { grid-column: auto; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .float-contact { right: 10px; bottom: 12px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }