:root {
      color-scheme: light;
      --ink: #211b30;
      --muted: #686274;
      --purple: #6035c6;
      --purple-dark: #43219d;
      --lilac: #eee8ff;
      --line: #e8e3ef;
      --paper: #ffffff;
      --soft: #f8f6fb;
      --mint: #dff4ec;
      --coral: #ffede7;
      --gold: #fff2d8;
      --content: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: #f7f5fc;
      color: var(--ink);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    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(--content), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.95); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-size: 17px; font-weight: 800; }
    .ai-page-logo { display: block; width: 38px; max-width: 100%; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 8px 9px; color: #514b5e; font-size: 12px; white-space: nowrap; border-radius: 6px; }
    .nav-links a:hover { color: var(--purple); background: #f2edfc; }
    .nav-links .nav-home { color: var(--purple-dark); }
    .nav-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 16px; color: #fff; background: var(--purple); border-radius: 6px; font-size: 13px; font-weight: 700; white-space: nowrap; transition: transform .2s, background .2s; }
    .nav-cta:hover, .button-primary:hover { background: var(--purple-dark); transform: translateY(-2px); }
    .menu-toggle { display: none; width: 42px; height: 40px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); cursor: pointer; }
    main { overflow: hidden; }
    .hero { position: relative; isolation: isolate; padding: 82px 0 56px; background: linear-gradient(135deg,#f4efff 0%,#fff 58%,#fff7f2 100%); border-bottom: 1px solid var(--line); }
    .hero::before { position: absolute; content: ""; inset: 0 0 auto; height: 7px; background: linear-gradient(90deg,#6b3fd1 0 36%,#ec8377 36% 66%,#55bda0 66%); z-index: -1; }
    .hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 46px; align-items: center; }
    .eyebrow { margin: 0 0 14px; color: var(--purple); font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }
    h1 { max-width: 680px; margin: 0; font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 600px; margin: 20px 0 0; color: #5e586b; font-size: 17px; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 27px; }
    .button-primary, .button-secondary { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 6px; font-size: 14px; font-weight: 750; transition: transform .2s, background .2s, border-color .2s; }
    .button-primary { color: #fff; background: var(--purple); }
    .button-secondary { color: var(--purple-dark); border: 1px solid #cfc2ea; background: #fff; }
    .button-secondary:hover { border-color: var(--purple); transform: translateY(-2px); }
    .hero-note { margin: 14px 0 0; color: var(--muted); font-size: 12px; }
    .hero-console { padding: 25px; border: 1px solid #ded4f1; border-radius: 8px; background: rgba(255,255,255,.8); box-shadow: 0 22px 50px rgba(71,43,120,.09); animation: rise .65s ease both; }
    .console-top { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
    .console-title { font-size: 14px; font-weight: 800; }
    .status { display: inline-flex; align-items: center; gap: 7px; color: #28755d; font-size: 11px; font-weight: 750; }
    .status::before { width: 7px; height: 7px; content: ""; border-radius: 50%; background: #46b58a; }
    .model-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 9px; margin-top: 17px; }
    .model-chip { min-height: 43px; display: flex; align-items: center; justify-content: center; padding: 8px; border: 1px solid #ebe7f1; border-radius: 5px; background: #fff; color: #433b52; font-size: 12px; font-weight: 700; }
    .console-foot { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 18px; padding-top: 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
    .console-foot strong { color: var(--purple-dark); }
    .metrics { padding: 20px 0; background: #fff; border-bottom: 1px solid var(--line); }
    .metric-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; }
    .metric { padding: 9px 20px; border-right: 1px solid var(--line); }
    .metric:first-child { padding-left: 0; }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--purple-dark); font-size: 19px; }
    .metric span { color: var(--muted); font-size: 12px; }
    section { scroll-margin-top: 88px; }
    .section { padding: 70px 0; }
    .section-alt { background: #fff; border-block: 1px solid var(--line); }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 26px; margin-bottom: 29px; }
    .section-head > div { max-width: 690px; }
    .section-kicker { margin: 0 0 7px; color: var(--purple); font-size: 11px; font-weight: 800; letter-spacing: 1.1px; }
    h2 { margin: 0; font-size: 32px; line-height: 1.2; letter-spacing: 0; }
    .section-intro { max-width: 590px; margin: 9px 0 0; color: var(--muted); font-size: 14px; }
    h3 { margin: 0; font-size: 18px; line-height: 1.35; }
    .text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--purple-dark); font-size: 13px; font-weight: 750; white-space: nowrap; }
    .text-link:hover { text-decoration: underline; }
    .intro-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .intro-copy { color: #5c5668; font-size: 15px; }
    .intro-copy p { margin: 0 0 14px; }
    .check-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px 20px; margin: 0; padding: 0; list-style: none; }
    .check-list li { display: flex; gap: 10px; align-items: start; color: #4c4658; font-size: 13px; }
    .check-list li::before { content: "✓"; color: #278c70; font-weight: 900; }
    .service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
    .service-item { min-height: 150px; padding: 19px; border: 1px solid var(--line); border-radius: 6px; background: #fff; transition: transform .2s, box-shadow .2s, border-color .2s; }
    .service-item:hover { transform: translateY(-3px); border-color: #cbb8ec; box-shadow: 0 12px 28px rgba(65,39,110,.08); }
    .service-item p { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
    .service-tag { display: inline-block; margin-bottom: 9px; color: #625776; font-size: 10px; font-weight: 800; }
    .workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; counter-reset: steps; }
    .workflow-step { position: relative; padding: 20px 18px; border-top: 2px solid #8a68d5; background: #f8f6fb; counter-increment: steps; }
    .workflow-step::before { display: block; margin-bottom: 15px; color: #7354bd; content: "0" counter(steps); font-size: 12px; font-weight: 850; }
    .workflow-step p { margin: 7px 0 0; color: var(--muted); font-size: 13px; }
    .split-band { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
    .solution-copy { max-width: 520px; }
    .solution-list { display: grid; gap: 10px; margin-top: 20px; }
    .solution-line { display: flex; justify-content: space-between; gap: 18px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
    .solution-line span:last-child { color: var(--muted); text-align: right; }
    .mini-panel { padding: 22px; border-left: 3px solid var(--purple); background: #f2edfb; }
    .mini-panel h3 { margin-bottom: 12px; }
    .mini-panel p { margin: 0; color: #5e586b; font-size: 13px; }
    .industries { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .industry { padding: 7px 11px; border: 1px solid #e3dcec; border-radius: 4px; background: #fff; color: #50485d; font-size: 12px; }
    .network { display: grid; grid-template-columns: 1.15fr .85fr; gap: 35px; align-items: center; }
    .network-board { display: grid; grid-template-columns: repeat(3,1fr); gap: 9px; }
    .network-node { padding: 14px 10px; border: 1px solid var(--line); background: #fff; text-align: center; font-size: 12px; font-weight: 750; }
    .network-node:nth-child(3n+2) { background: var(--mint); }
    .network-node:nth-child(3n) { background: var(--gold); }
    .network-copy p { color: var(--muted); font-size: 14px; }
    .compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
    .compare-table { width: 100%; min-width: 700px; border-collapse: collapse; text-align: left; }
    .compare-table th, .compare-table td { padding: 14px 16px; border-bottom: 1px solid var(--line); font-size: 13px; vertical-align: top; }
    .compare-table th { background: #f3eff9; color: #44385e; font-size: 12px; }
    .compare-table th:nth-child(2) { color: var(--purple-dark); }
    .compare-table tr:last-child td { border-bottom: 0; }
    .rating-panel { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding: 20px 24px; background: #25193d; color: #fff; }
    .rating-score { display: flex; align-items: baseline; gap: 8px; }
    .rating-score strong { font-size: 38px; line-height: 1; }
    .rating-score span { color: #e2d9f4; font-size: 13px; }
    .stars { color: #ffd16b; letter-spacing: 2px; }
    .rating-label { color: #e2d9f4; font-size: 13px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 35px; align-items: start; }
    .match-aside { padding: 21px; border: 1px solid #d9cdec; background: #f1ecfa; }
    .match-aside p { color: #5c5467; font-size: 13px; }
    .match-aside ul { padding-left: 18px; color: #514a5b; font-size: 13px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { color: #393244; font-size: 12px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; min-height: 43px; padding: 10px 12px; border: 1px solid #ded8e7; border-radius: 4px; outline: none; background: #fff; color: var(--ink); }
    .field textarea { min-height: 105px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: #8666ce; box-shadow: 0 0 0 3px rgba(96,53,198,.1); }
    .form-submit { margin-top: 15px; border: 0; cursor: pointer; }
    .reviews-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 13px; }
    .review { padding: 18px; border: 1px solid var(--line); background: #fff; }
    .review p { margin: 0; color: #514b5d; font-size: 13px; }
    .review-person { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 15px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 11px; }
    .review-person strong { color: #372f43; font-size: 12px; }
    .review-person span { color: var(--muted); }
    .case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 15px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .case img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #eeeaf3; }
    .case-body { padding: 15px; }
    .case-body p { margin: 7px 0 0; color: var(--muted); font-size: 12px; }
    .articles { display: grid; grid-template-columns: repeat(2,1fr); gap: 0 28px; border-top: 1px solid var(--line); }
    .article-link { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 54px; border-bottom: 1px solid var(--line); font-size: 13px; }
    .article-link span:last-child { color: var(--purple); font-size: 12px; }
    .article-link:hover { color: var(--purple-dark); }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 3px; cursor: pointer; font-size: 14px; font-weight: 750; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; color: var(--purple); font-size: 21px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-answer { max-width: 800px; margin: 0; padding: 0 28px 16px 3px; color: var(--muted); font-size: 13px; }
    .join-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 26px; background: #eae3f7; }
    .join-band p { max-width: 650px; margin: 7px 0 0; color: #5f576b; font-size: 13px; }
    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
    .contact-details { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
    .contact-detail { padding: 13px; background: #f2eef8; color: #484153; font-size: 12px; }
    .contact-detail strong { display: block; margin-bottom: 3px; color: var(--purple-dark); }
    .contact-qr { width: 132px; margin-top: 15px; border: 1px solid var(--line); background: #fff; }
    .contact-qr img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; }
    .footer { padding: 26px 0; background: #fff; border-top: 1px solid var(--line); color: #514b5d; }
    .footer-top { display: flex; align-items: start; justify-content: space-between; gap: 28px; }
    .footer-brand { font-size: 14px; font-weight: 800; }
    .footer-meta { color: var(--muted); font-size: 12px; }
    .friend-links { display: flex; flex-wrap: wrap; gap: 8px 15px; max-width: 650px; }
    .friend-links a { color: #514b5d; font-size: 11px; }
    .friend-links a:hover { color: var(--purple); }
    .copyright { margin-top: 18px; padding-top: 13px; border-top: 1px solid var(--line); color: #777180; font-size: 11px; }
    .float-help { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .float-help a { display: flex; align-items: center; justify-content: center; min-width: 46px; min-height: 42px; padding: 0 12px; border: 1px solid #d9cdec; border-radius: 5px; background: #fff; color: var(--purple-dark); box-shadow: 0 6px 18px rgba(38,24,61,.1); font-size: 12px; font-weight: 750; }
    .float-help a:hover { color: #fff; background: var(--purple); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes rise { from { opacity: 0; transform: translateY(10px); } to { 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-row { gap: 12px; }
      .nav-links a { padding-inline: 6px; font-size: 11px; }
      .nav-cta { padding-inline: 11px; }
    }
    @media (max-width: 850px) {
      .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
      .nav-row { position: relative; min-height: 66px; }
      .nav-actions { display: flex; align-items: center; gap: 9px; }
      .nav-links { display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0; padding: 12px; border: 1px solid var(--line); background: #fff; box-shadow: 0 14px 24px rgba(35,23,55,.09); }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2,1fr); }
      .nav-links a { padding: 10px; font-size: 13px; }
      .hero { padding-top: 60px; }
      .hero-grid, .intro-layout, .split-band, .network, .match-layout, .contact-grid { grid-template-columns: 1fr; }
      .hero-grid { gap: 30px; }
      .hero-console { max-width: 600px; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .workflow { grid-template-columns: repeat(2,1fr); }
      .network-copy { order: -1; }
      .reviews-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 560px) {
      .container { width: min(var(--content), calc(100% - 28px)); }
      .brand { font-size: 15px; }
      .ai-page-logo { width: 32px; }
      .nav-cta { min-height: 38px; padding-inline: 10px; font-size: 11px; }
      .hero { padding: 48px 0 38px; }
      h1 { font-size: 40px; }
      .hero-copy { font-size: 15px; }
      .hero-console { padding: 17px; }
      .model-grid { grid-template-columns: repeat(2,1fr); }
      .metric-grid { grid-template-columns: repeat(2,1fr); }
      .metric { padding: 10px 12px; border-right: 0; border-bottom: 1px solid var(--line); }
      .metric:nth-child(odd) { border-right: 1px solid var(--line); }
      .metric:nth-last-child(-n+2) { border-bottom: 0; }
      .metric:first-child { padding-left: 12px; }
      .section { padding: 51px 0; }
      .section-head { align-items: start; flex-direction: column; gap: 12px; }
      h2 { font-size: 27px; }
      .service-grid, .workflow, .reviews-grid, .case-grid, .articles { grid-template-columns: 1fr; }
      .service-item { min-height: auto; }
      .check-list { grid-template-columns: 1fr; }
      .rating-panel { align-items: start; flex-direction: column; }
      .form-grid { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .contact-details { grid-template-columns: 1fr; }
      .join-band { align-items: start; flex-direction: column; }
      .footer-top { flex-direction: column; }
      .float-help { right: 10px; bottom: 12px; }
      .float-help a { min-width: 42px; padding-inline: 9px; }
    }