:root {
      color-scheme: light;
      --ink: #20242d;
      --muted: #646b78;
      --line: #e5e7eb;
      --paper: #f7f8fa;
      --white: #fff;
      --pink: #f12f72;
      --orange: #ff7a36;
      --yellow: #ffd34e;
      --green: #1e846b;
      --blue: #235cdb;
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    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; top: 0; z-index: 20;
      background: rgba(255,255,255,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
    .ai-page-logo { display: block; width: 142px; max-width: 100%; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 0; }
    .nav-links a { padding: 8px 9px; color: #4f5662; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover { color: var(--pink); }
    .nav-cta { background: var(--ink); color: #fff !important; padding-inline: 16px !important; margin-left: 8px; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--ink); width: 42px; height: 42px; cursor: pointer; }
    .hero { overflow: hidden; background: #ffda47; border-bottom: 1px solid #edc63a; }
    .hero-inner { position: relative; padding-top: 74px; padding-bottom: 55px; }
    .hero-inner::after {
      content: ""; position: absolute; width: 260px; height: 260px; border: 1px solid rgba(32,36,45,.22);
      border-radius: 50%; right: 6%; top: 52px; box-shadow: 0 0 0 30px rgba(255,255,255,.12), 0 0 0 65px rgba(255,255,255,.08);
      pointer-events: none;
    }
    .hero-copy { position: relative; z-index: 1; max-width: 760px; }
    .eyebrow { margin: 0 0 16px; font-size: 12px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; }
    h1 { max-width: 700px; margin: 0; font-size: clamp(38px, 6vw, 70px); line-height: 1.08; letter-spacing: 0; }
    .hero-copy > p:not(.eyebrow) { max-width: 640px; margin: 22px 0 26px; color: #3d4148; font-size: 18px; }
    .actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 19px; border: 1px solid var(--ink); background: var(--ink); color: #fff; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 7px 16px rgba(32,36,45,.16); }
    .button-light { background: transparent; color: var(--ink); }
    .hero-foot { position: relative; z-index: 1; display: flex; gap: 9px; flex-wrap: wrap; margin-top: 42px; }
    .hero-foot span { border: 1px solid rgba(32,36,45,.3); padding: 6px 11px; font-size: 13px; font-weight: 650; }
    .section { padding: 70px 0; }
    .section-white { background: var(--white); border-block: 1px solid var(--line); }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
    .section-head > div { max-width: 720px; }
    .section-kicker { margin: 0 0 8px; color: var(--pink); font-size: 12px; font-weight: 800; letter-spacing: .8px; }
    h2 { margin: 0; font-size: clamp(27px, 4vw, 40px); line-height: 1.2; letter-spacing: 0; }
    h3 { margin: 0 0 10px; font-size: 19px; line-height: 1.35; letter-spacing: 0; }
    .section-intro { margin: 12px 0 0; max-width: 700px; color: var(--muted); }
    .pill-link { display: inline-flex; padding: 9px 13px; border: 1px solid var(--line); background: #fff; font-weight: 700; white-space: nowrap; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: #fff; }
    .metric { padding: 22px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--pink); font-size: 27px; line-height: 1.2; }
    .metric span { color: var(--muted); font-size: 13px; }
    .split { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: start; }
    .copy-block p { color: var(--muted); }
    .checks { padding: 0; margin: 18px 0 0; list-style: none; }
    .checks li { padding: 10px 0; border-bottom: 1px solid var(--line); }
    .checks li::before { content: "＋"; margin-right: 10px; color: var(--pink); font-weight: 800; }
    .process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; border-block: 1px solid var(--line); }
    .process article { position: relative; padding: 23px 20px 22px 0; margin-right: 20px; }
    .process article:not(:last-child)::after { content: "→"; position: absolute; right: 4px; top: 27px; color: var(--pink); font-size: 20px; }
    .step-num { color: var(--pink); font-size: 12px; font-weight: 800; }
    .process p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .service { min-height: 170px; padding: 22px; background: #fff; transition: background .2s ease, transform .2s ease; }
    .service:hover { position: relative; z-index: 1; background: #fff8ec; transform: translateY(-2px); }
    .service p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-tag { display: inline-block; margin-bottom: 11px; color: var(--green); font-size: 12px; font-weight: 800; }
    .week-plan { display: grid; grid-template-columns: 180px 1fr; border-top: 1px solid var(--line); }
    .day { padding: 15px 14px 15px 0; border-bottom: 1px solid var(--line); font-weight: 800; }
    .deliverable { padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 680px; border-collapse: collapse; text-align: left; }
    th, td { padding: 15px 17px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #20242d; color: #fff; font-size: 14px; }
    td { color: #4f5662; font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .rating { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; margin: 0 0 20px; }
    .rating strong { font-size: 32px; color: var(--pink); }
    .stars { color: #f0a400; letter-spacing: 2px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud span { padding: 7px 10px; border: 1px solid var(--line); background: #fff; color: #48505c; font-size: 13px; }
    .timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .timeline article { border-top: 4px solid var(--orange); padding-top: 15px; }
    .timeline p { margin: 0; color: var(--muted); font-size: 14px; }
    .media-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .media-item { margin: 0; background: #fff; border: 1px solid var(--line); }
    .media-item img { display: block; width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
    .media-item figcaption { padding: 13px 15px; font-weight: 700; }
    .media-square { display: grid; grid-template-columns: minmax(160px, 250px) 1fr; gap: 24px; align-items: center; margin-top: 20px; }
    .media-square img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; }
    .media-square p { color: var(--muted); }
    .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
    .quote { margin: 0; padding: 19px; border-left: 3px solid var(--pink); background: #fff; }
    .quote p { margin: 0 0 14px; color: #414753; font-size: 14px; }
    .quote cite { color: var(--muted); font-size: 12px; font-style: normal; font-weight: 700; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { cursor: pointer; list-style: none; padding: 17px 34px 17px 0; position: relative; font-weight: 750; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 5px; color: var(--pink); font-size: 21px; top: 12px; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: -4px 0 18px; color: var(--muted); }
    .contact-band { background: #f12f72; color: #fff; }
    .contact-band .section-kicker, .contact-band .section-intro { color: #fff; }
    .contact-band h2 { color: #fff; }
    .contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
    .contact-info p { color: #fff; }
    .contact-info a { text-decoration: underline; text-underline-offset: 3px; }
    form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 20px; background: #fff; color: var(--ink); }
    .field { display: grid; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; padding: 11px 12px; border: 1px solid #cfd3da; background: #fff; color: var(--ink); border-radius: 0; }
    textarea { min-height: 112px; resize: vertical; }
    form .button { width: fit-content; border: 0; cursor: pointer; }
    .footer { padding: 30px 0; background: #20242d; color: #fff; }
    .footer-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; }
    .footer p { margin: 4px 0; color: #e0e3e9; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 15px; max-width: 620px; }
    .footer-links a { color: #fff; font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }
    .floating { position: fixed; right: 18px; bottom: 18px; z-index: 15; display: grid; gap: 8px; }
    .floating a { display: block; padding: 10px 13px; background: var(--ink); color: #fff; font-size: 13px; font-weight: 700; box-shadow: 0 4px 16px rgba(0,0,0,.16); }
    .back-top { border: 0; padding: 10px 13px; background: var(--pink); color: #fff; cursor: pointer; font-weight: 700; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 900px) {
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-row { position: relative; }
      .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; padding: 10px; background: #fff; border: 1px solid var(--line); align-items: stretch; flex-direction: column; box-shadow: 0 12px 20px rgba(20,25,35,.1); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 12px; }
      .nav-cta { margin: 5px 0 0; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .quote-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 620px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .hero-inner { padding-top: 54px; padding-bottom: 38px; }
      .hero-inner::after { right: -105px; top: 78px; width: 210px; height: 210px; }
      .hero-copy > p:not(.eyebrow) { font-size: 16px; }
      .section { padding: 52px 0; }
      .section-head { align-items: flex-start; flex-direction: column; gap: 15px; }
      .split, .contact-layout { grid-template-columns: 1fr; gap: 24px; }
      .process { grid-template-columns: 1fr 1fr; }
      .process article { margin-right: 8px; }
      .process article:nth-child(2)::after { display: none; }
      .service-grid, .quote-grid, .timeline { grid-template-columns: 1fr; }
      .week-plan { grid-template-columns: 104px 1fr; }
      .media-grid { grid-template-columns: 1fr; }
      .media-square { grid-template-columns: 1fr; }
      .media-square img { max-width: 250px; }
      .footer-row { flex-direction: column; }
      form { grid-template-columns: 1fr; padding: 16px; }
      .field-wide { grid-column: auto; }
      .floating { right: 10px; bottom: 10px; }
      .floating a { padding: 9px 10px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }