:root {
  --ink: #173452;
  --blue: #1268a6;
  --sky: #e7f3f8;
  --yellow: #ffce49;
  --cream: #fffaf0;
  --line: #ccdae2;
  --muted: #4d6376;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--cream); color: var(--ink); font-family: "Hiragino Maru Gothic ProN", "Hiragino Sans", "Yu Gothic", sans-serif; line-height: 1.85; overflow-wrap: anywhere; }
a { color: inherit; text-underline-offset: .2em; }
.wrap { width: min(1100px, calc(100% - 48px)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 23px 0; }
.brand { position: relative; font-size: 1.65rem; font-weight: 900; line-height: 1.3; letter-spacing: .06em; text-decoration: none; }
.brand-track { display: block; height: 5px; border-block: 1px solid var(--blue); margin-top: 5px; background: repeating-linear-gradient(90deg, transparent 0 7px, var(--blue) 7px 9px); }
.review-badge { font-size: .8rem; border: 1px solid var(--line); border-radius: 30px; padding: 4px 12px; background: white; white-space: nowrap; }
/* 2026-11-08 🐱 案: 最初の画面に、広告 v3c と同じ見出しと盤面の絵、その横（スマホでは下）に登録欄。 */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; grid-template-areas: "copy form" "art form"; align-items: start; column-gap: 44px; row-gap: 0; padding-block: 28px 54px; }
.hero-copy { grid-area: copy; }
.hero .launch { grid-area: form; }
.hero-art { grid-area: art; }
.hl { background: linear-gradient(transparent 58%, var(--yellow) 58%); padding-inline: .04em; }
.mobile-break { display: none; }
.hero .lead { font-weight: 700; }
.hero-art { margin-top: 18px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.45; text-wrap: balance; }
h1 { font-size: clamp(2rem, 3.6vw, 2.9rem); letter-spacing: -.025em; margin-bottom: 20px; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 20px; }
h3 { font-size: 1.05rem; }
.eyebrow { margin-bottom: 13px; color: var(--blue); font-size: .875rem; font-weight: 800; letter-spacing: .1em; }
.lead { font-size: 1.08rem; margin-bottom: 22px; }
.small-note, .availability { font-size: .875rem; color: var(--muted); }
.availability { margin: 19px 0 0; }
.availability strong { font-weight: 600; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 13px 22px; border: 0; border-radius: 10px; font: inherit; font-size: 1rem; font-weight: 700; text-decoration: none; cursor: pointer; }
.button-primary { color: var(--ink); background: var(--yellow); box-shadow: 0 3px 0 #d7a51d; }
.button:hover { background: #ffda73; }
button:disabled, fieldset:disabled .button { cursor: not-allowed; opacity: .65; }
figure { margin: 0; }
.hero-art figcaption { text-align: center; margin-top: 10px; color: var(--muted); font-size: .8rem; }
.hero-art img, .screen-card img { display: block; max-width: 100%; height: auto; border-radius: 12px; }
.launch { scroll-margin-top: 12px; min-width: 0; }
.hero .launch-form { border: 2px solid var(--ink); box-shadow: 0 4px 0 var(--ink); }
.form-more { margin: -4px 0 14px; font-size: .875rem; }
.form-more summary { cursor: pointer; color: #085a96; font-weight: 700; text-decoration: underline; text-underline-offset: .2em; }
.form-more[open] summary { margin-bottom: 10px; }
.form-more .consent-explanation { border-top: 0; padding-top: 0; margin-top: 0; }
.hero .purchase-note { margin: 10px 0 0; text-align: center; }
.launch-form.is-done .form-status.success { font-size: 1.05rem; line-height: 1.8; margin: 0; padding: 18px 16px 18px 56px; position: relative; background: #e8f6ee; border-radius: 12px; }
.launch-form.is-done .form-status.success::before { content: "✓"; position: absolute; left: 16px; top: 16px; width: 28px; height: 28px; border-radius: 50%; background: #087143; color: white; font-weight: 800; text-align: center; line-height: 28px; }
.launch-inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 58px; align-items: start; padding-block: 42px; }
.launch-heading { padding-top: 16px; }
.launch .eyebrow { color: #ffdf7d; }
.launch-heading p { max-width: 23em; }
.purchase-note { font-size: .9rem; font-weight: 700; }
.launch-form { min-width: 0; background: white; color: var(--ink); border-radius: 16px; padding: 28px; }
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
legend { font-size: 1.1rem; font-weight: 700; padding: 0 0 15px; }
label:not(.consent) { display: block; font-weight: 700; font-size: .9rem; }
input[type="email"], select, textarea { display: block; width: 100%; min-height: 48px; margin: 6px 0 17px; padding: 10px 12px; color: var(--ink); background: white; border: 1px solid #9eafbc; border-radius: 7px; font: inherit; font-size: 16px; }
textarea { resize: vertical; }
.optional { margin-left: 5px; font-size: .75rem; color: var(--muted); font-weight: 400; }
.form-detail { font-size: .8rem; color: var(--muted); margin: -6px 0 14px; }
.consent-explanation { font-size: .875rem; border-top: 1px solid var(--line); padding-top: 16px; margin-top: 17px; }
.consent-explanation p { margin-bottom: 12px; }
.consent { display: flex; align-items: flex-start; gap: 12px; font-size: .875rem; line-height: 1.8; margin: 14px 0 12px; cursor: pointer; }
.consent input { flex: 0 0 21px; width: 21px; height: 21px; margin: 3px 0 0; accent-color: var(--blue); }
.consent a, .consent-explanation a { color: #085a96; }
.launch-form .button { width: 100%; }
.form-status { font-size: .875rem; font-weight: 600; margin: 18px 0 0; }
.form-status.success { color: #087143; }
.form-status.error { color: #b23131; }
.form-status:empty { margin: 0; }
.section { padding-block: 68px; }
.section-heading { max-width: 700px; margin-bottom: 30px; }
.section-heading p:last-child { margin-bottom: 0; }
.screens { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; max-width: 860px; }
.screen-card { min-width: 0; }
.screen-card figcaption { padding: 20px 2px 0; }
.screen-card figcaption strong, .screen-card figcaption span, .screen-card figcaption small { display: block; }
.screen-card figcaption strong { margin-bottom: 8px; font-size: 1.1rem; }
.screen-card figcaption span { font-size: .9rem; }
.screen-card figcaption small { margin-top: 10px; color: var(--muted); font-size: .75rem; }
.parents { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.fact-list { list-style: none; padding: 0; margin: 0 0 32px; max-width: 820px; }
.fact-list li { position: relative; padding: 16px 0 16px 29px; border-bottom: 1px solid #e0e4df; }
.fact-list li::before { content: ""; position: absolute; top: 27px; left: 3px; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
.parents .small-note { margin: 14px 0 0; }
.privacy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin: 28px 0; }
.privacy-grid > div { padding: 24px; border: 1px solid var(--line); background: white; border-radius: 12px; }
.privacy-grid p, .privacy > p { font-size: .9rem; }
.privacy-grid p:last-child { margin-bottom: 0; }
.contact-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 58px; padding-top: 0; }
.contact-form { border: 1px solid var(--line); }
.site-footer { background: var(--ink); color: #f2f7fc; padding-block: 36px; font-size: .8rem; }
.site-footer p:last-child { margin-bottom: 0; }
.footer-brand { font-size: 1.3rem; font-weight: 800; }
.policy { max-width: 800px; }
.policy h1 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
.policy section { margin-block: 38px; }
.policy h2 { font-size: 1.25rem; margin-bottom: 14px; }
.policy p { font-size: .95rem; }
.skip-link { position: absolute; top: -90px; left: 16px; z-index: 10; background: white; padding: 10px 14px; }
.skip-link:focus { top: 10px; }
:focus-visible { outline: 3px solid #b05b00; outline-offset: 4px; }
@media (max-width: 760px) {
  .wrap { width: calc(100% - 32px); }
  .site-header { padding-block: 16px; }
  .brand { font-size: 1.4rem; }
  .hero { grid-template-columns: 1fr; grid-template-areas: "copy" "form" "art"; row-gap: 14px; padding-block: 8px 28px; }
  .mobile-break { display: inline; }
  .desktop-break { display: none; }
  .hero-art { margin-top: 10px; }
  .hero .lead { margin-bottom: 0; }
  h1 { font-size: clamp(1.75rem, 8.4vw, 2.5rem); line-height: 1.38; margin-bottom: 8px; }
  .lead { font-size: 1rem; margin-bottom: 18px; }
  .eyebrow { margin-bottom: 10px; }
  .availability { margin-top: 15px; font-size: .8rem; }
  .hero-art figcaption { margin-top: 6px; font-size: .75rem; }
  .launch { border-radius: 18px 18px 0 0; }
  .launch-inner, .contact-section { grid-template-columns: 1fr; gap: 22px; }
  .launch-inner { padding-block: 26px 32px; }
  .launch-heading { padding: 0; }
  .launch-heading h2 { font-size: 1.45rem; margin-bottom: 10px; }
  .launch-heading p { margin-bottom: 8px; max-width: none; font-size: .875rem; }
  .launch-form { padding: 16px 18px 18px; }
  .hero legend { padding-bottom: 8px; font-size: 1.02rem; }
  .section { padding-block: 42px; }
  .screens, .privacy-grid { grid-template-columns: 1fr; gap: 30px; }
  .screen-card figcaption { padding-top: 14px; }
  .privacy-grid > div { padding: 20px; }
  .contact-section { padding-top: 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }