:root {
      color-scheme: light;
      --ink: #29232a;
      --muted: #71666d;
      --paper: #fffafc;
      --white: #fff;
      --pink: #d92770;
      --pink-deep: #a81453;
      --rose: #ffe8f0;
      --line: #f0dce5;
      --plum: #53283f;
      --mint: #dff4ec;
      --shadow: 0 16px 42px rgba(93, 31, 61, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    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;
      z-index: 20;
      top: 0;
      background: rgba(255, 250, 252, .94);
      border-bottom: 1px solid rgba(240, 220, 229, .9);
      backdrop-filter: blur(12px);
    }
    .header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 800; }
    .ai-page-logo { display: block; width: 42px; }
    .brand-name { font-size: 17px; line-height: 1.2; }
    .brand-name small { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; font-weight: 500; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 0; }
    .nav-links a { padding: 9px 10px; color: #574a52; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--pink-deep); }
    .nav-links .nav-cta { margin-left: 8px; padding: 9px 15px; color: white; background: var(--pink); border-radius: 5px; }
    .menu-toggle { display: none; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 5px; color: var(--ink); background: white; }
    .hero {
      position: relative;
      overflow: hidden;
      padding: 76px 0 62px;
      background: linear-gradient(135deg, #fff5f9 0%, #ffe4ee 53%, #fff9fb 100%);
      border-bottom: 1px solid var(--line);
    }
    .hero::before, .hero::after { position: absolute; content: ""; pointer-events: none; }
    .hero::before { width: 360px; height: 360px; right: -125px; top: -160px; border: 1px solid rgba(217,39,112,.18); border-radius: 50%; box-shadow: 0 0 0 35px rgba(217,39,112,.035), 0 0 0 70px rgba(217,39,112,.025); }
    .hero::after { width: 220px; height: 220px; left: -135px; bottom: -155px; border: 1px solid rgba(168,20,83,.15); transform: rotate(35deg); }
    .hero-content { position: relative; z-index: 1; max-width: 780px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--pink-deep); font-size: 12px; font-weight: 750; }
    .eyebrow::before { width: 24px; height: 2px; content: ""; background: currentColor; }
    h1 { max-width: 720px; margin: 18px 0 16px; font-size: clamp(38px, 6vw, 68px); line-height: 1.13; font-weight: 800; }
    .hero h1 span { color: var(--pink-deep); }
    .hero-copy { max-width: 650px; margin: 0; color: #594b53; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 9px; padding: 11px 19px; border: 1px solid transparent; border-radius: 5px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 9px 20px rgba(126, 26, 71, .16); }
    .button-primary { color: white; background: var(--pink); }
    .button-primary:hover { background: var(--pink-deep); }
    .button-outline { color: var(--plum); border-color: #d8a8bc; background: rgba(255,255,255,.7); }
    .hero-note { margin-top: 18px; color: #735d69; font-size: 13px; }
    .hero-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; max-width: 700px; margin-top: 40px; border-top: 1px solid rgba(168,20,83,.19); }
    .hero-stat { padding: 17px 20px 0 0; }
    .hero-stat strong { display: block; color: var(--plum); font-size: 16px; }
    .hero-stat span { color: var(--muted); font-size: 12px; }
    .section { padding: 72px 0; }
    .section-tint { background: #fff2f7; }
    .section-white { background: white; }
    .section-heading { max-width: 740px; margin-bottom: 30px; }
    .section-heading h2 { margin: 8px 0 10px; font-size: clamp(27px, 4vw, 38px); line-height: 1.25; }
    .section-heading p { margin: 0; color: var(--muted); }
    .section-kicker { color: var(--pink-deep); font-size: 12px; font-weight: 800; }
    .intro-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 42px; align-items: start; }
    .intro-copy p { margin: 0 0 14px; color: #5d5158; }
    .capability-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 22px; padding: 0; margin: 23px 0 0; list-style: none; }
    .capability-list li { display: flex; gap: 10px; align-items: flex-start; color: #493c43; font-size: 14px; }
    .capability-list li::before { content: "✓"; color: var(--pink); font-weight: 900; }
    .side-note { padding: 22px; border-left: 3px solid var(--pink); background: #fff5f9; }
    .side-note strong { display: block; margin-bottom: 6px; color: var(--plum); }
    .side-note p { margin: 0; color: var(--muted); font-size: 14px; }
    .model-strip { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 25px; }
    .model-tag { padding: 6px 11px; border: 1px solid #e8c4d2; border-radius: 3px; color: #56384a; background: white; font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; }
    .service-item { padding: 20px; border: 1px solid var(--line); border-top: 3px solid #e45a91; background: white; transition: transform .22s ease, box-shadow .22s ease; }
    .service-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
    .service-item h3 { margin: 0 0 7px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-item .service-type { display: block; margin-bottom: 9px; color: var(--pink-deep); font-size: 11px; font-weight: 800; }
    .workflows { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: workflow; }
    .workflow { padding: 19px 18px; border-top: 1px solid #cf9aaf; background: rgba(255,255,255,.62); counter-increment: workflow; }
    .workflow::before { content: "0" counter(workflow); display: block; margin-bottom: 16px; color: var(--pink-deep); font-size: 12px; font-weight: 800; }
    .workflow h3 { margin: 0 0 7px; font-size: 16px; }
    .workflow p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
    .industry { padding: 16px; border: 1px solid var(--line); background: #fff; }
    .industry strong { display: block; margin-bottom: 5px; font-size: 14px; }
    .industry span { color: var(--muted); font-size: 12px; }
    .network-band { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; padding: 28px; background: var(--plum); color: white; }
    .network-band h3 { margin: 0 0 8px; font-size: 22px; }
    .network-band p { margin: 0; color: #f1dce5; font-size: 14px; }
    .network-band .network-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .network-tags span { padding: 7px 10px; border: 1px solid rgba(255,255,255,.26); color: white; font-size: 12px; }
    .timeline { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
    .timeline-step { padding-top: 14px; border-top: 2px solid var(--pink); }
    .timeline-step strong { display: block; margin-bottom: 6px; }
    .timeline-step p { margin: 0; color: var(--muted); font-size: 13px; }
    .gallery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .gallery-item { overflow: hidden; border: 1px solid var(--line); background: white; }
    .gallery-item .media { aspect-ratio: 16 / 9; overflow: hidden; background: #f4e9ee; }
    .gallery-item img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
    .gallery-item:hover img { transform: scale(1.025); }
    .gallery-item figcaption { padding: 12px 15px; color: #54454d; font-size: 13px; }
    .gallery-square { max-width: 420px; }
    .gallery-square .media { aspect-ratio: 1; }
    .score-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 28px; align-items: start; }
    .score-panel { padding: 24px; background: #fff0f6; border: 1px solid #f0cedc; }
    .score-panel .score { color: var(--pink-deep); font-size: 52px; line-height: 1; font-weight: 850; }
    .score-panel .stars { margin: 11px 0; color: #bd2a68; letter-spacing: 0; font-size: 20px; }
    .score-panel p { margin: 0; color: #65545d; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; min-width: 620px; border-collapse: collapse; text-align: left; }
    th, td { padding: 12px 14px; border-bottom: 1px solid #f0e5ea; vertical-align: top; font-size: 13px; }
    th { color: var(--plum); background: #fff4f8; }
    td:last-child { color: #59454f; }
    .positive { color: #177356; font-weight: 750; }
    .reviews-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
    .review { padding: 19px; border-bottom: 2px solid #df6e9c; background: white; }
    .review blockquote { margin: 0 0 15px; color: #55474e; font-size: 14px; }
    .review cite { color: var(--pink-deep); font-size: 12px; font-style: normal; font-weight: 750; }
    .review-note { margin: 16px 0 0; color: var(--muted); font-size: 12px; }
    .match-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 32px; align-items: start; }
    .match-copy { padding-top: 8px; }
    .match-copy p { color: var(--muted); }
    .match-copy ul { padding-left: 19px; color: #574a51; }
    .match-copy li { margin: 6px 0; }
    .form-panel { padding: 23px; border: 1px solid var(--line); background: white; }
    .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: #51434b; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #ddcbd3; border-radius: 3px; color: var(--ink); background: #fff; }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid rgba(217,39,112,.2); border-color: var(--pink); }
    .form-panel .button { margin-top: 14px; cursor: pointer; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 16px 36px 16px 2px; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { position: absolute; right: 6px; content: "+"; color: var(--pink-deep); font-size: 22px; line-height: 1; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 820px; margin: 0; padding: 0 34px 16px 2px; color: var(--muted); font-size: 14px; }
    .article-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .article-link { display: flex; justify-content: space-between; gap: 15px; padding: 16px; border: 1px solid var(--line); background: white; }
    .article-link span { font-weight: 700; }
    .article-link small { color: var(--pink-deep); white-space: nowrap; }
    .article-feed { margin-top: 14px; color: var(--muted); font-size: 13px; }
    .article-feed a { color: var(--pink-deep); text-decoration: underline; text-underline-offset: 3px; }
    .join-band { display: flex; justify-content: space-between; align-items: center; gap: 22px; padding: 23px 0; border-top: 1px solid var(--line); }
    .join-band h3 { margin: 0 0 4px; font-size: 20px; }
    .join-band p { margin: 0; color: var(--muted); font-size: 13px; }
    .contact-grid { display: grid; grid-template-columns: 1fr 260px; gap: 28px; align-items: start; }
    .contact-details { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 22px; }
    .contact-details p { margin: 0; color: #594b53; font-size: 14px; }
    .contact-details strong { display: block; color: var(--plum); }
    .qr-box { padding: 13px; border: 1px solid var(--line); background: white; text-align: center; }
    .qr-box img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; }
    .qr-box figcaption { margin-top: 8px; color: var(--muted); font-size: 12px; }
    .footer { padding: 24px 0; border-top: 1px solid var(--line); color: #55464e; background: #fff2f7; }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
    .footer p { margin: 5px 0; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 12px; }
    .footer-links a { color: #674b59; text-decoration: underline; text-underline-offset: 3px; }
    .copyright { margin-top: 16px !important; color: #76646e; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
    .float-contact a { display: flex; min-width: 88px; justify-content: center; padding: 10px 12px; border: 1px solid #e4bfd0; border-radius: 4px; color: var(--plum); background: white; box-shadow: 0 5px 18px rgba(93,31,61,.12); font-size: 12px; font-weight: 700; }
    .float-contact a:first-child { color: white; border-color: var(--pink); background: var(--pink); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-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: 900px) {
      .menu-toggle { display: inline-grid; place-items: center; flex: 0 0 auto; }
      .header-inner { position: relative; }
      .nav-links { display: none; position: absolute; top: calc(100% - 1px); left: 0; right: 0; align-items: stretch; padding: 10px 12px 14px; border: 1px solid var(--line); background: var(--paper); box-shadow: var(--shadow); }
      .nav-links.is-open { display: flex; flex-direction: column; }
      .nav-links a { padding: 9px 8px; }
      .nav-links .nav-cta { margin: 6px 0 0; text-align: center; }
      .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .industry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .workflows, .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 650px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .hero { padding: 56px 0 42px; }
      .hero-copy { font-size: 15px; }
      .hero-stats { margin-top: 30px; }
      .hero-stat { padding-right: 9px; }
      .hero-stat strong { font-size: 13px; }
      .hero-stat span { font-size: 11px; }
      .section { padding: 54px 0; }
      .intro-grid, .score-layout, .match-grid, .contact-grid, .network-band { grid-template-columns: 1fr; }
      .service-grid, .reviews-grid { grid-template-columns: 1fr; }
      .gallery-grid, .article-row { grid-template-columns: 1fr; }
      .gallery-square { max-width: 100%; }
      .capability-list { grid-template-columns: 1fr; }
      .contact-details { grid-template-columns: 1fr 1fr; }
      .join-band, .footer-top { align-items: flex-start; flex-direction: column; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { min-width: 72px; padding: 9px 8px; font-size: 11px; }
    }