:root {
      color-scheme: dark;
      --page: #100817;
      --surface: #191024;
      --surface-2: #21152d;
      --line: #392540;
      --ink: #f6eff8;
      --muted: #c2b2c9;
      --pink: #ff4ab8;
      --violet: #b28aff;
      --cyan: #78e8dd;
      --green: #94e7bc;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 104px; }
    body {
      margin: 0;
      background:
        radial-gradient(ellipse at 84% 10%, rgba(134, 48, 147, .15), transparent 38rem),
        radial-gradient(ellipse at 8% 44%, rgba(201, 42, 133, .09), transparent 34rem),
        var(--page);
      color: var(--ink);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    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(16, 8, 23, .94); border-bottom: 1px solid rgba(255,255,255,.08); backdrop-filter: blur(16px); }
    .header-main { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
    .ai-page-logo { display: block; width: 148px; max-width: 100%; height: auto; }
    .header-actions { display: flex; align-items: center; gap: 12px; }
    .home-link { color: var(--muted); font-size: 14px; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 6px; padding: 8px 12px; cursor: pointer; }
    .nav-links { display: flex; align-items: center; gap: 0; overflow-x: auto; scrollbar-width: none; padding: 0 0 12px; }
    .nav-links::-webkit-scrollbar { display: none; }
    .nav-links a { flex: 0 0 auto; padding: 7px 9px; color: #cdbfd2; font-size: 12px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover, .home-link:hover { color: var(--pink); }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 18px; border: 1px solid transparent; border-radius: 5px; color: #1c0b1a; background: linear-gradient(110deg, #ff71c7, #cf8cff); font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 9px 26px rgba(235, 72, 192, .24); }
    .button-secondary { color: var(--ink); background: transparent; border-color: #6a496f; }
    .button-secondary:hover { border-color: var(--pink); box-shadow: none; }
    .hero { position: relative; overflow: hidden; border-bottom: 1px solid rgba(255,255,255,.08); }
    .hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .24; background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 46px 46px; mask-image: linear-gradient(to bottom, black, transparent 90%); }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.16fr) minmax(270px, .84fr); gap: 48px; align-items: center; padding-top: 88px; padding-bottom: 78px; }
    .eyebrow { color: var(--cyan); font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 720px; margin-bottom: 20px; font-size: clamp(36px, 5vw, 64px); line-height: 1.12; }
    .hero-copy { max-width: 650px; color: var(--muted); font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-notes { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 25px; color: #dacdde; font-size: 13px; }
    .hero-notes span::before { content: "＋"; margin-right: 7px; color: var(--cyan); }
    .signal-panel { position: relative; padding: 25px; border: 1px solid #634069; background: linear-gradient(145deg, rgba(46, 26, 57, .94), rgba(22, 13, 31, .92)); }
    .signal-panel::after { content: ""; position: absolute; top: -1px; left: 22px; width: 54px; height: 2px; background: var(--pink); }
    .signal-title { margin-bottom: 18px; color: #e6d4eb; font-size: 13px; }
    .signal-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 13px 0; border-top: 1px solid rgba(255,255,255,.09); }
    .signal-row span { color: var(--muted); font-size: 13px; }
    .signal-row strong { color: var(--ink); font-size: 14px; text-align: right; }
    .signal-foot { margin: 17px 0 0; color: #a999b1; font-size: 12px; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; padding-block: 24px; border-bottom: 1px solid rgba(255,255,255,.08); }
    .metric { padding: 4px 22px; border-left: 1px solid var(--line); }
    .metric:first-child { border-left: 0; padding-left: 0; }
    .metric strong { display: block; margin-bottom: 3px; color: var(--cyan); font-size: 18px; }
    .metric span { color: var(--muted); font-size: 12px; }
    .section { padding-block: 76px; border-bottom: 1px solid rgba(255,255,255,.07); }
    .section-heading { max-width: 760px; margin-bottom: 32px; }
    .section-heading h2 { margin: 8px 0 10px; font-size: clamp(27px, 4vw, 40px); line-height: 1.2; }
    .section-heading p { margin-bottom: 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
    .intro-copy { color: var(--muted); }
    .intro-copy p:last-child { margin-bottom: 0; }
    .capability-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 22px; border-top: 1px solid var(--line); }
    .capability { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .capability strong { display: block; margin-bottom: 4px; font-size: 14px; }
    .capability span { color: var(--muted); font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
    .service-item { min-height: 150px; padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s ease; }
    .service-item:hover { background: rgba(180, 95, 188, .09); }
    .service-item h3 { margin: 0 0 8px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-number { display: block; margin-bottom: 14px; color: var(--pink); font-size: 11px; }
    .platform-band { display: flex; flex-wrap: wrap; gap: 9px; padding-top: 20px; }
    .platform-band span { padding: 6px 10px; border: 1px solid #48304f; color: #e2d3e8; font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: flow; }
    .step { padding-top: 18px; border-top: 2px solid #65456e; counter-increment: flow; }
    .step::before { content: "0" counter(flow); display: block; margin-bottom: 16px; color: var(--pink); font-size: 12px; font-weight: 700; }
    .step h3 { margin-bottom: 7px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-band { display: grid; grid-template-columns: .72fr 1.28fr; gap: 36px; align-items: start; padding: 30px; border: 1px solid #4b3455; background: linear-gradient(100deg, rgba(255,74,184,.1), rgba(120,232,221,.045)); }
    .solution-band h3 { margin-bottom: 10px; font-size: 22px; }
    .solution-band p { margin-bottom: 0; color: var(--muted); }
    .solution-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .solution-tags span { padding: 8px 10px; border: 1px solid #513d5b; color: #e5d9e9; font-size: 12px; }
    .industry-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
    .industry { padding-top: 18px; border-top: 1px solid #684674; }
    .industry h3 { margin-bottom: 8px; font-size: 16px; }
    .industry p { margin: 0; color: var(--muted); font-size: 13px; }
    .network-line { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-block: 1px solid var(--line); }
    .network-item { padding: 20px 16px; border-right: 1px solid var(--line); }
    .network-item:first-child { padding-left: 0; }
    .network-item:last-child { border-right: 0; }
    .network-item strong { display: block; margin-bottom: 5px; color: var(--cyan); font-size: 14px; }
    .network-item span { color: var(--muted); font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
    .case-item { padding: 20px; border: 1px solid var(--line); background: rgba(255,255,255,.025); }
    .case-item h3 { margin-bottom: 8px; font-size: 15px; }
    .case-item p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
    .media-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 22px; }
    .media-frame { overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
    .media-frame img { display: block; width: 100%; height: auto; }
    .review-score { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-bottom: 24px; padding: 20px 22px; border-left: 3px solid var(--pink); background: rgba(255,255,255,.035); }
    .review-score strong { color: var(--pink); font-size: 27px; }
    .review-score span { color: var(--muted); font-size: 13px; }
    .stars { color: #ffd66d !important; letter-spacing: 2px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); }
    table { width: 100%; min-width: 700px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); }
    th { color: var(--ink); background: #21152d; font-size: 13px; }
    td { color: var(--muted); font-size: 13px; }
    tr:last-child td { border-bottom: 0; }
    td:first-child { color: var(--ink); font-weight: 650; }
    .positive { color: var(--green); }
    .comment-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
    .comment { padding: 20px; border-top: 2px solid #55365f; background: rgba(255,255,255,.025); }
    .comment p { min-height: 78px; margin-bottom: 16px; color: #e5d9e9; font-size: 14px; }
    .comment strong { display: block; font-size: 13px; }
    .comment span { color: var(--muted); font-size: 12px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .match-aside { color: var(--muted); }
    .match-aside .button { margin-top: 12px; }
    .match-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 20px; margin-top: 20px; }
    .match-list div { padding-top: 12px; border-top: 1px solid var(--line); }
    .match-list strong { display: block; font-size: 13px; }
    .match-list span { color: var(--muted); font-size: 12px; }
    .form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
    .field { display: flex; flex-direction: column; gap: 7px; }
    .field label { color: #e8dce9; font-size: 13px; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; border: 1px solid #4a3652; border-radius: 3px; outline: none; padding: 12px; background: #160e1e; color: var(--ink); }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--pink); }
    .field textarea { min-height: 114px; resize: vertical; }
    .field.full { grid-column: 1 / -1; }
    .form-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 17px; }
    .form-note { color: var(--muted); font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 34px 17px 0; cursor: pointer; list-style: none; font-size: 15px; font-weight: 650; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 4px; color: var(--pink); font-size: 20px; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { max-width: 850px; margin: 0; padding: 0 30px 17px 0; color: var(--muted); font-size: 14px; }
    .article-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; border-top: 1px solid var(--line); }
    .article-links a { display: flex; justify-content: space-between; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); color: #e5d8ea; font-size: 13px; }
    .article-links a span { color: var(--cyan); white-space: nowrap; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; }
    .contact-details { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 20px; }
    .contact-details div { padding-top: 12px; border-top: 1px solid var(--line); }
    .contact-details strong { display: block; margin-bottom: 3px; font-size: 13px; }
    .contact-details span, .contact-details a { color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
    .qr-frame { width: min(190px, 100%); margin-top: 20px; padding: 10px; background: #fff; }
    .qr-frame img { display: block; width: 100%; height: auto; }
    .footer { padding-block: 32px; background: #0b0610; color: #e8ddeb; }
    .footer-main { display: flex; justify-content: space-between; align-items: flex-start; gap: 26px; }
    .footer p { max-width: 560px; margin: 12px 0 0; color: #b9aabf; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: flex-end; }
    .footer-links a { color: #d9c8df; font-size: 12px; }
    .copyright { margin-top: 22px; padding-top: 15px; border-top: 1px solid #302138; color: #a998af; font-size: 11px; }
    .float-contact { position: fixed; right: 16px; bottom: 18px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .float-contact a { display: inline-flex; justify-content: center; align-items: center; min-width: 48px; min-height: 44px; padding: 9px 12px; border: 1px solid #68416d; background: #21152d; color: var(--ink); font-size: 12px; box-shadow: 0 5px 18px rgba(0,0,0,.26); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 800px) {
      .hero-inner { grid-template-columns: 1fr; gap: 30px; padding-top: 62px; padding-bottom: 52px; }
      .signal-panel { max-width: 560px; }
      .intro-grid, .match-layout, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
      .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .industry-grid, .case-grid, .comment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .workflow { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 28px; }
      .network-line { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .network-item:nth-child(2) { border-right: 0; }
      .network-item:nth-child(n+3) { border-top: 1px solid var(--line); }
      .network-item:nth-child(3) { padding-left: 0; }
    }
    @media (max-width: 620px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .header-main { min-height: 64px; }
      .ai-page-logo { width: 126px; }
      .menu-toggle { display: inline-flex; }
      .header-actions .button { display: none; }
      .nav-links { display: none; padding: 8px 0 12px; flex-wrap: wrap; overflow: visible; }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 8px 9px; }
      .home-link { display: none; }
      .hero-inner { padding-top: 48px; }
      h1 { font-size: 39px; }
      .hero-copy { font-size: 15px; }
      .metric-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 18px; }
      .metric { padding: 4px 12px; }
      .metric:nth-child(odd) { border-left: 0; padding-left: 0; }
      .section { padding-block: 55px; }
      .service-grid, .industry-grid, .case-grid, .comment-grid { grid-template-columns: 1fr; }
      .service-item { min-height: auto; }
      .workflow { gap: 24px 16px; }
      .solution-band { grid-template-columns: 1fr; padding: 22px; gap: 20px; }
      .network-item { padding: 16px 10px; }
      .media-row, .form-grid, .article-links { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .comment p { min-height: auto; }
      .footer-main { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .float-contact { right: 10px; bottom: 10px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }