:root {
      color-scheme: light;
      --ink: #29212a;
      --muted: #6e626c;
      --pink: #cf2766;
      --pink-dark: #9f1649;
      --pink-soft: #ffe8f0;
      --plum: #512b48;
      --line: #eadde3;
      --paper: #fff8fa;
      --white: #ffffff;
      --green: #18775c;
      --max: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(255, 248, 250, .96);
      border-bottom: 1px solid rgba(234, 221, 227, .9);
      backdrop-filter: blur(14px);
    }
    .header-inner {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .ai-page-logo { display: block; width: 38px; max-height: 38px; object-fit: contain; }
    .brand-name { font-size: 17px; letter-spacing: 0; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
    .nav-links a { padding: 10px 9px; color: #55464f; font-size: 13px; text-decoration: none; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--pink); }
    .nav-links .nav-cta { margin-left: 8px; padding: 9px 15px; color: #fff; background: var(--pink); border-radius: 4px; }
    .nav-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 4px; padding: 7px 11px; cursor: pointer; }
    .hero {
      overflow: hidden;
      position: relative;
      padding: 76px 0 62px;
      background: #ffeaf1;
      border-bottom: 1px solid #f5cbd9;
    }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border: 1px solid rgba(207,39,102,.18); transform: rotate(45deg); }
    .hero::before { width: 300px; height: 300px; right: -120px; top: -120px; }
    .hero::after { width: 180px; height: 180px; right: 10%; bottom: -145px; }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--pink-dark); font-size: 13px; font-weight: 750; }
    .eyebrow::before { content: ""; width: 25px; height: 2px; background: var(--pink); }
    h1 { max-width: 700px; margin: 16px 0 18px; font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 640px; color: #5f4e58; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 11px 20px; border: 1px solid var(--pink); border-radius: 4px; color: #fff; background: var(--pink); font-weight: 750; text-decoration: none; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(159,22,73,.18); background: var(--pink-dark); }
    .button.secondary { color: var(--pink-dark); background: transparent; border-color: #d983a2; }
    .button.secondary:hover { background: #fff6f9; }
    .hero-note { margin-top: 18px; color: #745f69; font-size: 13px; }
    .hero-panel { padding: 26px; background: rgba(255,255,255,.62); border: 1px solid #f1c5d4; border-radius: 8px; }
    .hero-panel h2 { margin: 0 0 18px; font-size: 18px; }
    .model-line { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-line span { padding: 6px 10px; border: 1px solid #efd1dc; border-radius: 3px; background: #fff; font-size: 12px; color: #59434e; }
    .hero-panel-foot { display: flex; justify-content: space-between; gap: 15px; margin-top: 22px; padding-top: 18px; border-top: 1px solid #efd1dc; font-size: 13px; color: #59434e; }
    .hero-panel-foot strong { color: var(--pink-dark); }
    .metrics { position: relative; z-index: 2; margin-top: -1px; background: #fff; border-bottom: 1px solid var(--line); }
    .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
    .metric { padding: 23px 18px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--pink-dark); font-size: 20px; }
    .metric span { color: var(--muted); font-size: 13px; }
    section.content-section { padding: 70px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
    .section-head > div { max-width: 700px; }
    .section-kicker { color: var(--pink-dark); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    h2.section-title { margin: 6px 0 8px; font-size: 32px; line-height: 1.25; }
    .section-intro { margin: 0; max-width: 720px; color: var(--muted); }
    .text-link { color: var(--pink-dark); font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: 4px; }
    .about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: start; }
    .about-copy p { margin: 0 0 15px; color: #584b53; }
    .about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; margin: 22px 0 0; padding: 0; list-style: none; }
    .about-points li { padding: 12px 0; border-bottom: 1px solid var(--line); font-weight: 650; }
    .about-points li::before { content: "＋"; margin-right: 9px; color: var(--pink); }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #e9d7df; border: 1px solid #e9d7df; }
    .service-item { padding: 23px; background: #fff; transition: background .2s ease; }
    .service-item:hover { background: #fff5f8; }
    .service-item .number { color: var(--pink); font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 9px 0 7px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-band { padding: 27px 30px; background: var(--plum); color: #fff; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
    .service-band h3 { margin: 0 0 5px; font-size: 21px; }
    .service-band p { margin: 0; color: #f2dce8; }
    .service-band .button { color: var(--plum); background: #fff; border-color: #fff; }
    .sector-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 25px; border-top: 1px solid var(--line); }
    .sector-list a { display: block; padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; font-weight: 650; }
    .sector-list a:hover { color: var(--pink-dark); }
    .sector-list small { display: block; margin-top: 3px; color: var(--muted); font-weight: 400; }
    .network { background: #fff; border-block: 1px solid var(--line); }
    .network-row { display: flex; flex-wrap: wrap; gap: 8px; }
    .network-row span { padding: 8px 12px; background: #fff2f6; color: #5c3b4b; border-left: 2px solid #dc5b89; font-size: 13px; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
    .step { padding-top: 18px; border-top: 2px solid #d84e81; counter-increment: step; }
    .step::before { content: "0" counter(step); color: var(--pink); font-weight: 800; font-size: 13px; }
    .step h3 { margin: 8px 0 5px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
    .case-feature { padding: 27px; background: #f8dce6; }
    .case-feature h3 { margin: 0 0 12px; font-size: 23px; }
    .case-feature p { margin: 0; color: #57434d; }
    .case-feature .case-meta { margin-top: 20px; color: var(--pink-dark); font-size: 13px; font-weight: 750; }
    .case-images { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .image-frame { overflow: hidden; background: #f4e8ed; }
    .image-frame img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .4s ease; }
    .image-frame:hover img { transform: scale(1.025); }
    .compare-wrap { display: grid; grid-template-columns: .7fr 1.3fr; gap: 28px; align-items: stretch; }
    .score-panel { padding: 28px; color: #fff; background: var(--pink-dark); }
    .score-panel .score-label { font-size: 13px; color: #ffe0eb; }
    .score-panel strong { display: block; margin: 6px 0; font-size: 50px; line-height: 1.1; }
    .score-panel p { margin: 10px 0 0; color: #ffe0eb; }
    .stars { color: #ffe39b; letter-spacing: 2px; font-size: 20px; }
    .table-scroll { overflow-x: auto; background: #fff; border: 1px solid var(--line); }
    table { width: 100%; border-collapse: collapse; min-width: 600px; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #fff0f5; font-size: 13px; }
    td { color: #55464f; font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .positive { color: var(--green); font-weight: 700; }
    .match-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; align-items: start; }
    .match-copy { padding: 5px 0; }
    .match-copy p { color: var(--muted); }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .tag-cloud span { padding: 7px 11px; border: 1px solid #e8bfce; color: #6e2946; background: #fff; font-size: 13px; }
    .price-note { margin: 0 0 14px; color: var(--muted); font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    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 { margin: 0; padding: 0 25px 18px 0; color: var(--muted); }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
    .review { padding: 22px; background: #fff; }
    .review blockquote { margin: 0 0 16px; color: #51434b; }
    .review cite { color: var(--pink-dark); font-size: 13px; font-style: normal; font-weight: 750; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
    .article-list a { min-height: 118px; padding: 16px; display: flex; flex-direction: column; justify-content: space-between; background: #fff; border-top: 2px solid #d84e81; text-decoration: none; }
    .article-list a:hover { background: #fff0f5; }
    .article-list span { font-weight: 700; }
    .article-list small { color: var(--pink-dark); }
    .contact-section { background: #f9e4ec; border-block: 1px solid #f0c7d6; }
    .contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 45px; align-items: start; }
    .contact-details { display: grid; gap: 12px; margin-top: 22px; color: #594650; }
    .contact-details a { color: var(--pink-dark); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #d9bdc8; border-radius: 3px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid rgba(207,39,102,.22); border-color: var(--pink); }
    .form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 15px; }
    .form-status { min-height: 24px; color: var(--pink-dark); font-size: 13px; }
    .qr-wrap { width: 132px; padding: 6px; background: #fff; border: 1px solid #ead3dc; }
    .qr-wrap img { display: block; width: 100%; }
    .contact-bottom { display: flex; align-items: center; gap: 20px; margin-top: 22px; }
    .footer { padding: 28px 0; background: #fff; color: #544650; }
    .footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 22px; align-items: center; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
    .footer-links a { color: #654553; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { color: var(--pink-dark); }
    .copyright { margin-top: 17px; padding-top: 14px; border-top: 1px solid var(--line); color: #756771; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 22px; z-index: 15; display: grid; gap: 8px; }
    .float-contact a { min-width: 46px; padding: 10px 12px; color: #fff; background: var(--pink-dark); border-radius: 3px; text-decoration: none; text-align: center; font-size: 12px; box-shadow: 0 4px 14px rgba(81,43,72,.2); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 1000px) {
      .nav-links a { padding-inline: 6px; font-size: 12px; }
      .nav-links .nav-cta { margin-left: 3px; padding-inline: 10px; }
      .hero-inner { gap: 32px; }
      .sector-list { grid-template-columns: repeat(3, 1fr); }
      .article-list { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(calc(100% - 32px), var(--max)); }
      .header-inner { min-height: 64px; }
      .nav-toggle { display: inline-flex; align-items: center; gap: 7px; }
      .nav-links { display: none; position: absolute; top: 63px; left: 0; right: 0; padding: 10px 16px 16px; background: var(--paper); border-bottom: 1px solid var(--line); align-items: stretch; flex-direction: column; }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 8px; font-size: 14px; }
      .nav-links .nav-cta { margin: 6px 0 0; text-align: center; }
      .hero { padding: 55px 0 42px; }
      .hero-inner, .about-layout, .case-layout, .compare-wrap, .match-grid, .contact-layout { grid-template-columns: 1fr; }
      .hero-inner { gap: 30px; }
      .hero-copy { font-size: 16px; }
      .hero-panel { max-width: 540px; }
      .metrics-grid { grid-template-columns: 1fr 1fr; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      section.content-section { padding: 52px 0; }
      .section-head { align-items: start; flex-direction: column; gap: 14px; }
      h2.section-title { font-size: 28px; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .sector-list { grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: 1fr 1fr; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .service-band { grid-template-columns: 1fr; padding: 24px; }
      .contact-layout { gap: 28px; }
    }
    @media (max-width: 480px) {
      .hero-actions .button { width: 100%; }
      .hero-panel-foot { flex-direction: column; }
      .service-grid, .about-points, .steps, .review-grid, .article-list { grid-template-columns: 1fr; }
      .sector-list { grid-template-columns: 1fr 1fr; gap: 0 15px; }
      .case-images { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .contact-bottom { align-items: flex-start; }
      .float-contact { right: 10px; bottom: 12px; }
      .float-contact a { padding: 9px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }