:root {
      color-scheme: dark;
      --bg: #130e1b;
      --bg-soft: #1b1425;
      --panel: #21192d;
      --panel-light: #291d36;
      --text: #f6effb;
      --muted: #b8aabe;
      --line: rgba(236, 209, 255, .14);
      --pink: #ff58b3;
      --violet: #b47aff;
      --cyan: #70e3e0;
      --lime: #d7f47b;
      --container: 1160px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body {
      margin: 0;
      background:
        radial-gradient(ellipse at 18% 12%, rgba(121, 44, 128, .16), transparent 36rem),
        linear-gradient(180deg, #130e1b 0%, #17111f 50%, #130e1b 100%);
      color: var(--text);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }

    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(19, 14, 27, .92); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
    .nav-row { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 750; letter-spacing: .02em; }
    .ai-page-logo { display: block; width: 40px; max-width: 100%; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; color: #d4c9dd; font-size: 13px; }
    .nav-links a { padding: 8px 9px; transition: color .2s ease; }
    .nav-links a:hover { color: var(--pink); }
    .nav-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: transparent; color: var(--text); width: 42px; height: 42px; border-radius: 6px; cursor: pointer; }
    .button { min-height: 46px; padding: 11px 18px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; border: 1px solid transparent; border-radius: 5px; color: #190f20; font-weight: 750; background: linear-gradient(110deg, var(--pink), #d37aff); transition: transform .2s ease, filter .2s ease, box-shadow .2s ease; }
    .button:hover { transform: translateY(-2px); filter: brightness(1.08); box-shadow: 0 9px 28px rgba(255, 88, 179, .22); }
    .button-secondary { border-color: rgba(221, 183, 255, .35); color: var(--text); background: rgba(255,255,255,.035); }
    .button-small { min-height: 40px; padding: 8px 14px; font-size: 13px; }

    .hero { padding: 88px 0 54px; overflow: hidden; position: relative; }
    .hero::before { content: ""; position: absolute; inset: 18px 0 auto auto; width: min(48vw, 570px); height: 380px; pointer-events: none; opacity: .5; background: repeating-linear-gradient(135deg, transparent 0 24px, rgba(255,88,179,.16) 25px 26px, transparent 27px 49px); mask-image: linear-gradient(90deg, transparent, #000); }
    .hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); gap: 54px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--cyan); text-transform: uppercase; font-size: 12px; font-weight: 750; letter-spacing: .12em; }
    .eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--cyan); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 720px; margin: 18px 0; font-size: clamp(38px, 6vw, 70px); line-height: 1.12; letter-spacing: 0; }
    h1 span { color: var(--pink); }
    .hero-copy { max-width: 660px; color: #c7b8d0; font-size: 17px; }
    .hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 25px; }
    .hero-note { color: var(--muted); font-size: 13px; }
    .hero-console { border: 1px solid rgba(242,190,255,.2); border-left: 3px solid var(--pink); padding: 24px; background: linear-gradient(150deg, rgba(49,30,59,.86), rgba(29,21,39,.9)); box-shadow: 16px 16px 0 rgba(255,88,179,.06); }
    .console-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding-bottom: 17px; border-bottom: 1px solid var(--line); font-size: 13px; color: #d8c8e2; }
    .live-mark { color: var(--lime); font-size: 11px; }
    .live-mark::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 12px var(--lime); }
    .console-title { margin: 20px 0 10px; font-size: 20px; }
    .console-text { color: var(--muted); font-size: 14px; margin-bottom: 17px; }
    .console-line { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-top: 1px solid rgba(255,255,255,.07); font-size: 13px; }
    .console-line strong { color: var(--cyan); font-weight: 650; }
    .metrics { padding: 19px 0 35px; }
    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
    .metric { padding: 20px 23px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--text); font-size: 21px; }
    .metric span { color: var(--muted); font-size: 13px; }

    section.content-section { padding: 78px 0; border-top: 1px solid rgba(255,255,255,.055); }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 25px; margin-bottom: 32px; }
    .section-head > div { max-width: 680px; }
    .section-kicker { margin-bottom: 7px; color: var(--pink); font-size: 12px; font-weight: 750; letter-spacing: .1em; }
    h2 { margin-bottom: 10px; font-size: clamp(26px, 4vw, 39px); line-height: 1.25; letter-spacing: 0; }
    .section-intro { margin-bottom: 0; color: var(--muted); }
    .text-link { color: var(--cyan); font-size: 14px; white-space: nowrap; }
    .text-link:hover { color: var(--pink); }
    .intro-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 54px; align-items: start; }
    .intro-copy { color: #c7b8d0; }
    .intro-copy p:last-child { margin-bottom: 0; }
    .feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
    .feature-line { padding: 14px 0; border-top: 1px solid var(--line); }
    .feature-line strong { display: block; font-size: 15px; }
    .feature-line span { color: var(--muted); font-size: 13px; }

    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
    .service-item { min-height: 164px; padding: 19px; border: 1px solid var(--line); background: rgba(255,255,255,.025); transition: border-color .2s ease, transform .2s ease, background .2s ease; }
    .service-item:hover { transform: translateY(-3px); border-color: rgba(255,88,179,.5); background: rgba(255,88,179,.045); }
    .service-item h3 { margin: 0 0 8px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-tag { display: inline-block; margin-bottom: 12px; color: var(--cyan); font-size: 11px; letter-spacing: .06em; }
    .model-band { margin-top: 22px; padding: 19px 21px; border-left: 2px solid var(--cyan); background: rgba(112,227,224,.055); }
    .model-band strong { display: block; margin-bottom: 8px; }
    .model-list { color: #c8bbd1; font-size: 13px; }

    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-block: 1px solid var(--line); }
    .workflow-step { padding: 25px 21px 23px 0; margin-right: 21px; position: relative; }
    .workflow-step:not(:last-child)::after { content: ""; position: absolute; right: 0; top: 30px; width: 1px; height: 70px; background: var(--line); }
    .step-index { color: var(--pink); font-size: 12px; font-weight: 750; letter-spacing: .08em; }
    .workflow-step h3 { margin: 8px 0; font-size: 17px; }
    .workflow-step p { color: var(--muted); font-size: 13px; margin: 0; }

    .solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .solution { padding: 21px; border-top: 2px solid var(--violet); background: linear-gradient(145deg, rgba(180,122,255,.09), rgba(255,255,255,.02)); }
    .solution:nth-child(2) { border-color: var(--cyan); }
    .solution:nth-child(3) { border-color: var(--pink); }
    .solution h3 { margin: 0 0 8px; font-size: 17px; }
    .solution p { color: var(--muted); font-size: 13px; margin: 0; }
    .network-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: center; }
    .network-note { color: var(--muted); }
    .network-list { display: flex; flex-wrap: wrap; gap: 9px; }
    .network-list span { padding: 7px 11px; border: 1px solid var(--line); color: #ddcde8; font-size: 13px; }

    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .case-item { border: 1px solid var(--line); background: #1b1424; }
    .case-item img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
    .case-item-body { padding: 16px 17px 18px; }
    .case-item h3 { margin: 0 0 6px; font-size: 16px; }
    .case-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .square-case { max-width: 360px; }
    .square-case img { aspect-ratio: 1; }

    .review-score { display: flex; align-items: center; gap: 15px; flex: 0 0 auto; }
    .review-score strong { color: var(--lime); font-size: 34px; line-height: 1; }
    .review-score span { display: block; color: var(--muted); font-size: 12px; }
    .stars { color: var(--pink); letter-spacing: 0; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); }
    table { width: 100%; border-collapse: collapse; min-width: 700px; font-size: 14px; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; }
    th { color: #e9d9f4; background: rgba(180,122,255,.1); font-weight: 650; }
    td { color: #c7b8d0; }
    tbody tr:last-child td { border-bottom: 0; }
    td:first-child { color: var(--text); font-weight: 600; }
    .positive { color: var(--cyan); }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
    .review { padding: 19px; border-left: 2px solid var(--violet); background: rgba(255,255,255,.035); }
    .review p { color: #d0c3d7; font-size: 14px; margin-bottom: 15px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }

    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 54px; align-items: start; }
    .match-copy { color: var(--muted); }
    .match-list { margin: 22px 0 0; padding: 0; list-style: none; }
    .match-list li { padding: 10px 0; border-top: 1px solid var(--line); color: #ded1e6; font-size: 14px; }
    .match-list li::before { content: "↗"; color: var(--cyan); margin-right: 10px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    .field label { color: #e6d9ed; font-size: 13px; }
    .field input, .field select, .field textarea { width: 100%; min-height: 46px; padding: 11px 12px; border: 1px solid rgba(235,210,249,.2); border-radius: 4px; outline: none; background: #1b1425; color: var(--text); }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--pink); }
    .form-submit { margin-top: 16px; }
    .form-note { color: var(--muted); font-size: 12px; margin: 10px 0 0; }

    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 18px 38px 18px 0; cursor: pointer; list-style: none; font-weight: 650; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--pink); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; padding: 0 25px 17px 0; color: var(--muted); margin: 0; font-size: 14px; }

    .article-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-link { display: flex; min-height: 92px; align-items: end; padding: 13px; border: 1px solid var(--line); background: linear-gradient(140deg, rgba(255,88,179,.08), rgba(255,255,255,.02)); font-size: 13px; transition: border-color .2s ease; }
    .article-link:hover { border-color: var(--pink); }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; }
    .tag-cloud span { padding: 8px 12px; border: 1px solid var(--line); color: #dacbe3; font-size: 13px; }

    .contact-band { display: grid; grid-template-columns: 1fr auto; gap: 25px; align-items: center; padding: 28px; border: 1px solid rgba(255,88,179,.35); background: linear-gradient(105deg, rgba(255,88,179,.12), rgba(180,122,255,.08)); }
    .contact-band h2 { margin-bottom: 7px; font-size: 26px; }
    .contact-band p { color: var(--muted); margin: 0; }
    .footer { padding: 28px 0 34px; border-top: 1px solid var(--line); background: #100b17; color: #d8cadd; }
    .footer-main { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
    .footer-brand { max-width: 370px; }
    .footer-brand p { margin: 12px 0 0; color: var(--muted); font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 9px 17px; justify-content: flex-end; max-width: 570px; font-size: 13px; color: #c8b8d2; }
    .footer-links a:hover { color: var(--cyan); }
    .copyright { margin: 22px 0 0; padding-top: 15px; border-top: 1px solid var(--line); color: #96889f; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 22px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .float-contact a { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; color: #1a1020; background: var(--cyan); font-size: 12px; font-weight: 750; box-shadow: 0 5px 22px rgba(0,0,0,.3); }
    .float-contact a:last-child { color: #241019; background: var(--pink); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }

    @media (max-width: 1050px) {
      .nav-links { display: none; position: absolute; top: 76px; left: 0; right: 0; padding: 12px 20px 18px; justify-content: flex-start; background: #17111f; border-bottom: 1px solid var(--line); }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 8px 10px; }
      .menu-toggle { display: grid; place-items: center; }
      .nav-row { gap: 12px; }
      .nav-actions { margin-left: auto; }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .hero { padding: 62px 0 35px; }
      .hero-grid, .intro-layout, .network-layout, .match-layout { grid-template-columns: 1fr; gap: 27px; }
      .hero-grid { gap: 30px; }
      .hero::before { width: 75vw; opacity: .27; }
      .metric-grid { grid-template-columns: 1fr 1fr; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .metric { padding: 15px 12px; }
      section.content-section { padding: 58px 0; }
      .section-head { align-items: flex-start; flex-direction: column; margin-bottom: 24px; }
      .service-grid, .solution-grid, .reviews { grid-template-columns: 1fr 1fr; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .workflow-step:nth-child(2)::after { display: none; }
      .workflow-step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .case-grid { grid-template-columns: 1fr 1fr; }
      .article-grid { grid-template-columns: 1fr 1fr; }
      .contact-band { grid-template-columns: 1fr; }
      .footer-main { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .review-score { align-self: flex-start; }
    }
    @media (max-width: 480px) {
      .brand { font-size: 14px; }
      .ai-page-logo { width: 34px; }
      .nav-actions .button { display: none; }
      .nav-links.open { max-height: 70vh; overflow-y: auto; }
      .nav-links a { width: 50%; }
      h1 { font-size: 39px; }
      .hero-copy { font-size: 15px; }
      .hero-console { padding: 18px; }
      .service-grid, .solution-grid, .reviews, .case-grid { grid-template-columns: 1fr; }
      .square-case { max-width: none; }
      .feature-list { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr; }
      .workflow-step { margin-right: 0; border-bottom: 1px solid var(--line); }
      .workflow-step::after { display: none; }
      .workflow-step:last-child { border-bottom: 0; }
      .form-grid { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
      .article-grid { grid-template-columns: 1fr 1fr; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { width: 43px; height: 43px; }
    }