:root {
      color-scheme: light;
      --ink: #29242a;
      --muted: #716870;
      --pink: #e83e79;
      --pink-dark: #b92359;
      --pink-soft: #fff0f5;
      --rose: #fb7094;
      --coral: #ed684d;
      --gold: #c58c2c;
      --line: #eadde2;
      --paper: #fffafc;
      --white: #ffffff;
      --green: #317b62;
      --container: 1160px;
      --shadow: 0 14px 36px rgba(121, 39, 73, .09);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.7;
    }
    body.menu-open { overflow: hidden; }
    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; }
    .skip-link {
      position: absolute; top: -50px; left: 12px; z-index: 1000;
      background: #fff; color: var(--ink); padding: 8px 12px;
    }
    .skip-link:focus { top: 12px; }
    .site-header {
      position: sticky; top: 0; z-index: 50;
      background: rgba(255, 250, 252, .96);
      border-bottom: 1px solid rgba(234, 221, 226, .9);
      backdrop-filter: blur(12px);
    }
    .nav-wrap {
      min-height: 74px; display: flex; align-items: center; justify-content: space-between;
      gap: 22px; position: relative;
    }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .ai-page-logo { width: 38px; height: 38px; object-fit: contain; }
    .brand-name { font-weight: 800; font-size: 18px; letter-spacing: 0; }
    .brand-name span { color: var(--pink-dark); }
    .nav-links {
      display: flex; align-items: center; justify-content: flex-end; gap: 0;
      min-width: 0; flex-wrap: wrap;
    }
    .nav-links a {
      color: #534a51; font-size: 13px; padding: 9px 8px; border-radius: 5px;
      transition: color .2s ease, background .2s ease;
    }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--pink-dark); background: var(--pink-soft); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 10px 18px; border: 1px solid transparent; border-radius: 5px;
      color: #fff; background: var(--pink-dark); font-weight: 700; cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .nav-cta { flex: 0 0 auto; min-height: 40px; padding: 8px 14px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(185, 35, 89, .2); background: #a71d4e; }
    .button-outline { color: var(--pink-dark); background: transparent; border-color: #d88ba6; }
    .button-outline:hover { color: #fff; }
    .menu-toggle {
      display: none; width: 42px; height: 42px; border: 1px solid var(--line);
      background: #fff; color: var(--ink); border-radius: 5px; cursor: pointer;
    }
    .menu-toggle svg { width: 20px; height: 20px; display: block; margin: auto; }
    main { overflow: hidden; }
    .hero {
      position: relative; overflow: hidden; padding: 72px 0 58px;
      background:
        linear-gradient(128deg, #fff6f9 0%, #fff 46%, #fff0f5 100%);
      border-bottom: 1px solid #f2e0e7;
    }
    .hero::before {
      content: ""; position: absolute; width: 420px; aspect-ratio: 1; border-radius: 50%;
      border: 1px solid rgba(232, 62, 121, .15); right: -145px; top: -210px;
      box-shadow: 0 0 0 32px rgba(232, 62, 121, .035), 0 0 0 70px rgba(232, 62, 121, .025);
      pointer-events: none;
    }
    .hero-grid {
      position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr);
      align-items: center; gap: 54px;
    }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px; color: var(--pink-dark);
      font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
    }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--pink); }
    h1 { max-width: 700px; margin: 17px 0 16px; font-size: clamp(38px, 5vw, 62px); line-height: 1.15; letter-spacing: 0; }
    .hero h1 em { color: var(--pink-dark); font-style: normal; }
    .hero-copy { max-width: 650px; margin: 0; color: #60565e; font-size: 17px; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
    .hero-note { color: var(--muted); font-size: 13px; margin: 15px 0 0; }
    .hero-panel {
      position: relative; padding: 22px; border-left: 3px solid var(--pink);
      background: rgba(255,255,255,.78); box-shadow: var(--shadow);
    }
    .hero-panel h2 { font-size: 17px; margin: 0 0 14px; }
    .topic-stack { display: grid; gap: 10px; }
    .topic-row {
      display: flex; align-items: center; justify-content: space-between; gap: 12px;
      padding: 11px 12px; background: #fff8fa; border: 1px solid #f1dfe6; font-size: 13px;
    }
    .topic-row strong { font-weight: 700; }
    .topic-row span { color: var(--pink-dark); white-space: nowrap; font-size: 12px; }
    .hero-foot { color: var(--muted); font-size: 12px; margin: 13px 0 0; }
    .trust-strip { background: #fff; border-bottom: 1px solid var(--line); }
    .trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
    .trust-item { padding: 19px 16px; border-right: 1px solid var(--line); }
    .trust-item:first-child { border-left: 1px solid var(--line); }
    .trust-item strong { display: block; color: var(--pink-dark); font-size: 15px; }
    .trust-item span { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
    .section { padding: 74px 0; }
    .section-tint { background: #fff2f6; border-block: 1px solid #f3dfe7; }
    .section-white { background: #fff; }
    .section-heading { max-width: 760px; margin-bottom: 34px; }
    .section-heading.center { text-align: center; margin-inline: auto; }
    .section-kicker { color: var(--pink-dark); font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    h2 { font-size: clamp(27px, 3vw, 38px); line-height: 1.25; margin: 9px 0 12px; letter-spacing: 0; }
    .section-heading p { color: var(--muted); margin: 0; }
    h3 { line-height: 1.35; letter-spacing: 0; }
    .intro-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 48px; align-items: start; }
    .intro-copy p { color: #655c63; margin: 0 0 14px; }
    .intro-quote { border-left: 3px solid var(--coral); padding: 7px 0 7px 18px; color: #41383e; font-weight: 700; }
    .intro-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .intro-point { background: #fff; padding: 18px; }
    .intro-point strong { display: block; font-size: 15px; margin-bottom: 5px; }
    .intro-point p { color: var(--muted); font-size: 13px; margin: 0; }
    .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .service-item {
      min-width: 0; padding: 19px 18px; background: #fff; border: 1px solid var(--line);
      border-top: 3px solid var(--pink); transition: transform .2s ease, box-shadow .2s ease;
    }
    .service-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
    .service-item .index { color: var(--pink); font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 8px 0 7px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-item:nth-child(4n + 2) { border-top-color: var(--coral); }
    .service-item:nth-child(4n + 3) { border-top-color: var(--gold); }
    .service-item:nth-child(4n) { border-top-color: var(--green); }
    .tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
    .tag-list span { padding: 6px 11px; border: 1px solid #ebd5de; background: #fff; color: #594c54; font-size: 12px; }
    .workflow-band { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #e9cbd6; border-bottom: 1px solid #e9cbd6; }
    .workflow-step { position: relative; padding: 22px 22px 24px; border-right: 1px solid #e9cbd6; }
    .workflow-step:last-child { border-right: 0; }
    .workflow-step .step-no { color: var(--pink-dark); font-size: 12px; font-weight: 800; }
    .workflow-step h3 { font-size: 17px; margin: 9px 0 6px; }
    .workflow-step p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
    .solution-copy { max-width: 520px; }
    .solution-copy p { color: var(--muted); }
    .solution-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 11px; }
    .solution-list li { padding-left: 25px; position: relative; }
    .solution-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
    .sector-list { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
    .sector-row { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .sector-row strong { display: block; font-size: 14px; }
    .sector-row span { color: var(--muted); font-size: 12px; }
    .network-band { background: #3b2832; color: #fff; padding: 30px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; }
    .network-band h3 { font-size: 21px; margin: 0 0 5px; }
    .network-band p { color: #f0dce4; margin: 0; font-size: 14px; }
    .network-band .button { background: #fff; color: #6e2442; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 15px 17px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #fff0f5; color: #422b36; font-size: 13px; }
    td { font-size: 13px; color: #5f555c; }
    td:first-child { color: var(--ink); font-weight: 700; }
    tr:last-child td { border-bottom: 0; }
    .rating-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 20px; }
    .rating-score { display: flex; align-items: baseline; gap: 8px; }
    .rating-score strong { color: var(--pink-dark); font-size: 39px; line-height: 1; }
    .rating-score span { color: var(--muted); font-size: 13px; }
    .stars { color: var(--gold); letter-spacing: 0; font-size: 20px; }
    .rating-caption { color: var(--muted); font-size: 12px; }
    .match-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 34px; align-items: start; }
    .match-aside { padding: 23px; background: #382631; color: #fff; }
    .match-aside h3 { margin: 0 0 8px; font-size: 21px; }
    .match-aside p { margin: 0; color: #f3dfe7; font-size: 14px; }
    .match-aside .contact-line { margin-top: 18px; color: #fff; font-weight: 700; }
    .match-form, .contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .field { display: grid; gap: 6px; min-width: 0; }
    .field-full { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 700; }
    input, select, textarea {
      width: 100%; padding: 11px 12px; color: var(--ink); background: #fff;
      border: 1px solid #d9cbd1; border-radius: 3px; outline: none;
    }
    input:focus, select:focus, textarea:focus { border-color: var(--pink); box-shadow: 0 0 0 3px rgba(232, 62, 121, .12); }
    textarea { min-height: 108px; resize: vertical; }
    .form-note { color: var(--muted); font-size: 12px; margin: 0; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary {
      position: relative; cursor: pointer; list-style: none; padding: 17px 42px 17px 0;
      font-weight: 700; font-size: 15px;
    }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 6px; top: 14px; color: var(--pink-dark); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: -2px 35px 17px 0; color: var(--muted); font-size: 14px; }
    .reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 20px; border: 1px solid var(--line); background: #fff; }
    .review blockquote { margin: 0; color: #51474e; font-size: 14px; }
    .review figcaption { margin-top: 15px; display: flex; justify-content: space-between; gap: 8px; font-size: 12px; color: var(--muted); }
    .review figcaption strong { color: var(--ink); }
    .review-note { color: var(--muted); font-size: 12px; margin: 14px 0 0; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .case { background: #fff; border: 1px solid var(--line); overflow: hidden; }
    .case .image-frame { aspect-ratio: 16 / 9; overflow: hidden; background: #f6e9ee; }
    .case .image-frame img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
    .case:hover .image-frame img { transform: scale(1.035); }
    .case-copy { padding: 15px 17px 18px; }
    .case-copy span { color: var(--pink-dark); font-size: 12px; font-weight: 700; }
    .case-copy h3 { font-size: 16px; margin: 5px 0; }
    .case-copy p { color: var(--muted); font-size: 13px; margin: 0; }
    .article-area { display: grid; grid-template-columns: 1fr .7fr; gap: 38px; }
    .article-area h3 { margin: 0 0 13px; }
    .article-feed { color: var(--muted); }
    .article-links { display: grid; gap: 8px; margin-top: 18px; }
    .article-links a { padding: 10px 0; border-bottom: 1px solid var(--line); color: #51474e; font-size: 13px; }
    .article-links a:hover { color: var(--pink-dark); }
    .resource-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .resource-list a { border: 1px solid var(--line); background: #fff; padding: 13px; font-size: 13px; }
    .resource-list a:hover { border-color: var(--pink); color: var(--pink-dark); }
    .pricing-note { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; padding: 26px; background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--gold); }
    .pricing-note h3 { margin: 0 0 6px; }
    .pricing-note p { margin: 0; color: var(--muted); font-size: 14px; }
    .pricing-note .button { white-space: nowrap; }
    .affiliate {
      display: grid; grid-template-columns: 1fr auto; gap: 25px; align-items: center;
      border-top: 1px solid #e9cbd6; border-bottom: 1px solid #e9cbd6; padding: 25px 0;
    }
    .affiliate h3 { margin: 0 0 6px; font-size: 20px; }
    .affiliate p { color: var(--muted); margin: 0; }
    .contact-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 40px; align-items: start; }
    .contact-details { display: grid; gap: 13px; margin-top: 20px; }
    .contact-details div { border-bottom: 1px solid var(--line); padding-bottom: 10px; }
    .contact-details strong { display: block; font-size: 13px; }
    .contact-details a, .contact-details span { color: var(--muted); font-size: 14px; overflow-wrap: anywhere; }
    .qr-wrap { width: 150px; margin-top: 15px; border: 1px solid var(--line); padding: 7px; background: #fff; }
    .qr-wrap img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; }
    .form-shell { background: #fff; border: 1px solid var(--line); padding: 22px; }
    .form-shell h3 { margin: 0 0 16px; font-size: 18px; }
    .site-footer { background: #fff; color: #41373e; border-top: 1px solid var(--line); }
    .footer-main { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding: 30px 0 22px; }
    .footer-main p { color: var(--muted); font-size: 13px; max-width: 520px; margin: 10px 0 0; }
    .footer-links { display: flex; flex-wrap: wrap; align-content: start; gap: 7px 16px; justify-content: flex-end; }
    .footer-links a { color: #5e5159; font-size: 12px; }
    .footer-links a:hover { color: var(--pink-dark); }
    .footer-bottom { border-top: 1px solid var(--line); padding: 13px 0; color: #716870; font-size: 12px; }
    .footer-bottom-inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    .floating-tools { position: fixed; right: 18px; bottom: 20px; z-index: 40; display: grid; gap: 8px; }
    .floating-tools a, .floating-tools button {
      display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid #e8cbd7;
      background: #fff; color: var(--pink-dark); border-radius: 50%; cursor: pointer; box-shadow: 0 5px 18px rgba(50,20,34,.12);
    }
    .floating-tools a:hover, .floating-tools button:hover { background: var(--pink-dark); color: #fff; }
    .floating-tools svg { width: 19px; height: 19px; }
    .fade-in { opacity: 0; transform: translateY(14px); transition: opacity .65s ease, transform .65s ease; }
    .fade-in.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 980px) {
      .nav-wrap { min-height: 68px; }
      .menu-toggle { display: block; margin-left: auto; }
      .nav-cta { display: none; }
      .nav-links {
        display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0;
        max-height: calc(100vh - 72px); overflow-y: auto; padding: 10px;
        background: #fffafc; border: 1px solid var(--line); box-shadow: var(--shadow);
        align-items: stretch; flex-direction: column;
      }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 12px; }
      .hero-grid { gap: 30px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .section { padding: 56px 0; }
      .hero { padding: 49px 0 38px; }
      .hero-grid, .intro-layout, .solution-layout, .match-panel, .contact-layout, .article-area {
        grid-template-columns: 1fr;
      }
      .hero-grid { gap: 27px; }
      .hero-panel { max-width: 100%; }
      .trust-grid { grid-template-columns: repeat(2, 1fr); }
      .trust-item { border-bottom: 1px solid var(--line); }
      .workflow-band { grid-template-columns: repeat(2, 1fr); }
      .workflow-step:nth-child(2) { border-right: 0; }
      .workflow-step:nth-child(-n + 2) { border-bottom: 1px solid #e9cbd6; }
      .network-band, .pricing-note, .affiliate { grid-template-columns: 1fr; }
      .reviews-grid, .case-grid { grid-template-columns: 1fr; }
      .case { display: grid; grid-template-columns: minmax(110px, .8fr) 1.2fr; }
      .case .image-frame { height: 100%; aspect-ratio: auto; }
      .case-copy { padding: 12px; }
      .footer-main { grid-template-columns: 1fr; }
      .footer-links { justify-content: flex-start; }
      .intro-points { grid-template-columns: 1fr; }
      .rating-row { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 460px) {
      .brand-name { font-size: 16px; }
      .hero-actions .button { width: 100%; }
      .service-grid, .sector-list, .resource-list { grid-template-columns: 1fr; }
      .workflow-step { padding-inline: 13px; }
      .match-form, .contact-form { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .case { grid-template-columns: 1fr; }
      .case .image-frame { aspect-ratio: 16 / 9; }
      .floating-tools { right: 10px; bottom: 12px; }
      .footer-bottom-inner { flex-direction: column; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .fade-in { opacity: 1; transform: none; }
    }