:root {
      color-scheme: light;
      --ink: #20233a;
      --muted: #63677b;
      --paper: #fffaf4;
      --surface: #ffffff;
      --line: #ece7e2;
      --purple: #6548d8;
      --coral: #f16e72;
      --teal: #198d8a;
      --gold: #d99126;
      --container: 1160px;
      --shadow: 0 16px 46px rgba(48, 40, 77, .09);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body {
      margin: 0;
      color: var(--ink);
      background:
        radial-gradient(ellipse at 8% 12%, rgba(255, 210, 175, .25), transparent 30rem),
        radial-gradient(ellipse at 92% 30%, rgba(191, 223, 255, .28), transparent 34rem),
        linear-gradient(180deg, #fffaf4 0%, #fff 42%, #fbfaff 100%);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "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(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(255, 250, 244, .94); border-bottom: 1px solid rgba(230, 223, 217, .85); backdrop-filter: blur(14px); }
    .header-row { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 800; letter-spacing: .02em; }
    .ai-page-logo { width: 42px; height: auto; display: block; }
    .brand-name { font-size: 18px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: nowrap; }
    .nav-links a { padding: 10px 12px; color: #4d5065; font-size: 13px; white-space: nowrap; border-radius: 999px; transition: color .2s ease, background .2s ease; }
    .nav-links a:hover { color: var(--purple); background: #f0ecff; }
    .nav-links .nav-cta { margin-left: 8px; padding: 10px 17px; color: #fff; background: var(--purple); font-weight: 700; }
    .nav-links .nav-cta:hover { color: #fff; background: #5136c2; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 12px; padding: 9px 12px; cursor: pointer; }
    main { overflow: clip; }
    .hero { position: relative; padding: 88px 0 68px; }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border-radius: 50%; filter: blur(1px); }
    .hero::before { width: 230px; height: 230px; right: 8%; top: 42px; border: 1px solid rgba(101, 72, 216, .14); box-shadow: 0 0 0 28px rgba(101, 72, 216, .035), 0 0 0 58px rgba(241, 110, 114, .025); animation: orbit 16s linear infinite; }
    .hero::after { width: 10px; height: 10px; top: 103px; right: calc(8% + 30px); background: #f16e72; box-shadow: 0 0 0 8px rgba(241, 110, 114, .12); }
    .hero-content { position: relative; z-index: 1; max-width: 780px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: #684bd2; font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 22px; height: 2px; background: linear-gradient(90deg, #f16e72, #6548d8); }
    h1 { max-width: 760px; margin: 20px 0 17px; font-size: clamp(38px, 6vw, 68px); line-height: 1.12; letter-spacing: -.045em; }
    .hero h1 span { color: var(--purple); }
    .hero-lead { max-width: 650px; margin: 0; color: var(--muted); font-size: clamp(16px, 2vw, 19px); }
    .hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 29px; }
    .button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 12px 20px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); }
    .button-primary { color: #fff; background: linear-gradient(110deg, #684bd9, #8b5fd9); box-shadow: 0 10px 24px rgba(101, 72, 216, .22); }
    .button-primary:hover { box-shadow: 0 14px 28px rgba(101, 72, 216, .3); }
    .button-light { color: var(--ink); background: #fff; border-color: var(--line); }
    .button-light:hover { background: #f8f5ff; }
    .hero-note { margin-top: 21px; color: #76798a; font-size: 13px; }
    .hero-note strong { color: #393b55; }
    .hero-ribbon { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 33px; }
    .hero-ribbon span { padding: 7px 12px; color: #54576d; border: 1px solid #ece6df; border-radius: 999px; background: rgba(255,255,255,.74); font-size: 12px; }
    .section { padding: 72px 0; }
    .section-tight { padding: 48px 0; }
    .section-heading { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-bottom: 28px; }
    .section-heading > div { max-width: 720px; }
    .section-kicker { margin: 0 0 8px; color: var(--purple); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
    h2 { margin: 0; font-size: clamp(27px, 4vw, 40px); line-height: 1.25; letter-spacing: -.035em; }
    .section-intro { max-width: 690px; margin: 12px 0 0; color: var(--muted); }
    .text-link { color: var(--purple); font-size: 14px; font-weight: 750; white-space: nowrap; }
    .text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
    .intro-panel { display: grid; grid-template-columns: 1.1fr .9fr; gap: 34px; align-items: center; padding: clamp(24px, 5vw, 44px); border: 1px solid rgba(226, 219, 235, .8); border-radius: 26px; background: linear-gradient(120deg, rgba(255,255,255,.94), rgba(249,245,255,.92) 58%, rgba(255,246,239,.96)); box-shadow: var(--shadow); }
    .intro-panel p { margin: 14px 0 0; color: var(--muted); }
    .capability-list { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
    .capability-list span { padding: 13px 14px; border-radius: 12px; color: #42445a; background: #fff; border: 1px solid #eee9f4; font-size: 13px; }
    .capability-list span::before { content: "✦"; margin-right: 8px; color: var(--coral); }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 20px; }
    .metric { padding: 18px 20px; border-left: 3px solid #8a64dc; background: rgba(255,255,255,.78); }
    .metric strong { display: block; font-size: 17px; }
    .metric span { color: var(--muted); font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .service-card { padding: 23px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.92); transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease; }
    .service-card:hover { transform: translateY(-4px); border-color: #d5c8fa; box-shadow: 0 18px 34px rgba(50, 39, 91, .1); }
    .service-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 15px; border-radius: 13px; color: #5d43c6; background: #f0ebff; font-size: 18px; font-weight: 800; }
    .service-card:nth-child(3n+2) .service-icon { color: #b2545e; background: #fff0ef; }
    .service-card:nth-child(3n) .service-icon { color: #147a76; background: #e9f7f4; }
    h3 { margin: 0; font-size: 18px; line-height: 1.4; }
    .service-card p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
    .service-card .card-link { display: inline-block; margin-top: 14px; color: var(--purple); font-size: 13px; font-weight: 750; }
    .split-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
    .feature-aside { padding: 26px; border-radius: 20px; color: #fff; background: linear-gradient(145deg, #5142b4, #8651c7 62%, #d66b8a); }
    .feature-aside h3 { font-size: 22px; }
    .feature-aside p { margin: 12px 0 0; color: rgba(255,255,255,.9); }
    .feature-aside a { display: inline-flex; margin-top: 19px; padding: 10px 15px; border-radius: 10px; color: #3f3478; background: #fff; font-weight: 750; font-size: 13px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; }
    .workflow li { position: relative; padding: 20px 20px 18px; border-top: 2px solid #d7ceef; background: rgba(255,255,255,.72); }
    .workflow li:first-child { border-radius: 14px 0 0 14px; }
    .workflow li:last-child { border-radius: 0 14px 14px 0; }
    .workflow li::before { content: ""; position: absolute; width: 9px; height: 9px; top: -6px; left: 20px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px #fff; }
    .workflow strong { display: block; margin-top: 8px; font-size: 15px; }
    .workflow span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
    .case-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
    .case-image { display: grid; place-items: center; aspect-ratio: 16 / 10; padding: 12px; background: linear-gradient(135deg, #f5efff, #fff0e8); }
    .case-image img { display: block; max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 9px; }
    .case-copy { padding: 18px 19px 20px; }
    .case-copy p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 12px 30px rgba(48,40,77,.05); }
    .comparison { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    .comparison th, .comparison td { padding: 15px 17px; border-bottom: 1px solid #efebf0; vertical-align: top; }
    .comparison th { color: #53566c; background: #f8f6fb; font-size: 13px; }
    .comparison td { color: #515469; font-size: 13px; }
    .comparison tr:last-child td { border-bottom: 0; }
    .comparison td:first-child { width: 21%; color: var(--ink); font-weight: 750; }
    .rating-panel { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 19px; padding: 20px 24px; border: 1px solid #f0dcae; border-radius: 17px; background: linear-gradient(105deg, #fff8e8, #fff2f0 55%, #f7f1ff); }
    .rating-panel strong { display: block; font-size: 18px; }
    .rating-panel p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
    .rating-score { text-align: right; white-space: nowrap; }
    .rating-score b { color: #b57918; font-size: 30px; line-height: 1; }
    .rating-score span { display: block; margin-top: 6px; color: #a76c12; letter-spacing: .12em; }
    .match-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; align-items: start; }
    .match-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
    .match-list li { padding: 15px 17px; border-radius: 13px; background: rgba(255,255,255,.82); border: 1px solid var(--line); }
    .match-list strong { display: block; font-size: 14px; }
    .match-list span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
    .token-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 25px; padding: 28px 30px; border: 1px solid #e6e0f3; border-radius: 20px; background: linear-gradient(115deg, #f3efff, #fff 57%, #fff4ed); }
    .token-panel p { margin: 9px 0 0; color: var(--muted); }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; }
    .tag-cloud span { padding: 7px 11px; border: 1px solid #e9e4ef; border-radius: 999px; color: #55576b; background: #fff; font-size: 12px; }
    .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
    .quote-card { padding: 22px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.88); }
    .quote-card p { margin: 0; color: #4f5268; font-size: 14px; }
    .quote-card footer { margin-top: 16px; color: #77798a; font-size: 12px; }
    .quote-card footer strong { color: #35374e; }
    .faq-list { display: grid; gap: 10px; }
    .faq-list details { padding: 0 18px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.9); }
    .faq-list summary { position: relative; padding: 17px 28px 17px 0; cursor: pointer; list-style: none; font-weight: 750; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 0; top: 13px; color: var(--purple); font-size: 22px; font-weight: 400; transition: transform .2s ease; }
    .faq-list details[open] summary::after { transform: rotate(45deg); }
    .faq-list details p { margin: 0; padding: 0 0 17px; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-link { display: flex; flex-direction: column; justify-content: space-between; min-height: 105px; padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: #fff; transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { transform: translateY(-3px); border-color: #cfc1f5; }
    .article-link strong { color: #42445a; font-size: 13px; overflow-wrap: anywhere; }
    .article-link span { margin-top: 10px; color: var(--purple); font-size: 12px; font-weight: 700; }
    .contact-panel { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: start; padding: clamp(23px, 4vw, 38px); border: 1px solid #e5deee; border-radius: 24px; background: linear-gradient(125deg, #fff 0%, #f8f4ff 58%, #fff5ee 100%); box-shadow: var(--shadow); }
    .contact-details { display: grid; gap: 12px; margin-top: 19px; }
    .contact-item { padding: 13px 15px; border-radius: 12px; background: #fff; border: 1px solid #eee9f4; }
    .contact-item strong { display: block; font-size: 13px; }
    .contact-item span, .contact-item a { color: var(--muted); font-size: 13px; }
    .qr-area { display: flex; align-items: center; gap: 17px; margin-top: 18px; }
    .qr-area img { width: 108px; height: auto; border: 5px solid #fff; border-radius: 12px; box-shadow: 0 6px 20px rgba(0,0,0,.08); }
    .qr-area p { margin: 0; color: var(--muted); font-size: 13px; }
    .contact-form { display: grid; gap: 12px; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .contact-form label { display: grid; gap: 6px; color: #46495e; font-size: 13px; font-weight: 700; }
    .contact-form input, .contact-form select, .contact-form textarea { width: 100%; min-width: 0; padding: 11px 12px; color: var(--ink); border: 1px solid #dedbe5; border-radius: 10px; outline: none; background: #fff; }
    .contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: #8b75d8; box-shadow: 0 0 0 3px rgba(101,72,216,.1); }
    .contact-form textarea { min-height: 100px; resize: vertical; }
    .contact-form .button { cursor: pointer; justify-self: start; }
    .form-note { margin: 0; color: #77798a; font-size: 12px; }
    .footer { margin-top: 56px; padding: 30px 0 25px; color: #515469; background: #f5f1eb; border-top: 1px solid #e8e1da; }
    .footer-main { display: flex; justify-content: space-between; align-items: start; gap: 25px; }
    .footer-brand p { max-width: 480px; margin: 8px 0 0; color: #686a79; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 17px; max-width: 520px; }
    .footer-links a { color: #505267; font-size: 12px; }
    .footer-links a:hover { color: var(--purple); }
    .footer-bottom { display: flex; justify-content: space-between; gap: 14px; margin-top: 20px; padding-top: 15px; border-top: 1px solid #e4ddd7; color: #777987; font-size: 12px; }
    .back-top { position: fixed; right: 20px; bottom: 20px; z-index: 10; display: grid; place-items: center; width: 46px; height: 46px; border: 0; border-radius: 15px; color: #fff; background: var(--purple); box-shadow: 0 8px 22px rgba(76,57,153,.24); cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(8px); transition: opacity .2s ease, transform .2s ease; }
    .back-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
    .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes orbit { to { transform: rotate(360deg); } }
    @media (max-width: 900px) {
      .nav-links a { padding-inline: 8px; font-size: 12px; }
      .nav-links .nav-cta { margin-left: 4px; padding-inline: 12px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .article-list { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 720px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-row { min-height: 68px; }
      .menu-toggle { display: inline-flex; align-items: center; gap: 7px; }
      .nav-links { display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0; align-items: stretch; padding: 10px 16px 16px; border-bottom: 1px solid var(--line); background: #fffaf4; box-shadow: 0 16px 24px rgba(40,34,65,.08); }
      .nav-links.is-open { display: flex; flex-direction: column; }
      .nav-links a { padding: 11px 12px; font-size: 14px; }
      .nav-links .nav-cta { margin: 4px 0 0; text-align: center; }
      .hero { padding: 65px 0 54px; }
      .hero::before { width: 150px; height: 150px; right: -40px; top: 20px; opacity: .65; }
      .hero::after { right: 82px; top: 42px; }
      .section { padding: 55px 0; }
      .section-tight { padding: 36px 0; }
      .section-heading { align-items: start; flex-direction: column; gap: 12px; margin-bottom: 22px; }
      .intro-panel, .split-layout, .match-layout, .contact-panel { grid-template-columns: 1fr; }
      .metric-strip { grid-template-columns: repeat(2, 1fr); }
      .workflow { grid-template-columns: repeat(2, 1fr); gap: 10px; }
      .workflow li, .workflow li:first-child, .workflow li:last-child { border-radius: 12px; border: 1px solid #e7e0ef; border-top: 2px solid #d7ceef; }
      .case-grid, .quote-grid { grid-template-columns: repeat(2, 1fr); }
      .token-panel { grid-template-columns: 1fr; }
      .footer-main { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
    }
    @media (max-width: 480px) {
      .brand-name { font-size: 16px; }
      .ai-page-logo { width: 36px; }
      .hero { padding-top: 54px; }
      .hero-actions { align-items: stretch; flex-direction: column; max-width: 320px; }
      .hero-actions .button { width: 100%; }
      .service-grid, .case-grid, .quote-grid, .capability-list { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: repeat(2, 1fr); }
      .rating-panel { align-items: flex-start; flex-direction: column; }
      .rating-score { text-align: left; }
      .form-row { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; }
      .qr-area { align-items: flex-start; }
    }
    @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; }
    }