:root {
  color-scheme: light;
  --cream: #fff8ee;
  --paper: #fffdf6;
  --paper-warm: #f9e8c6;
  --brown: #5e3b2b;
  --brown-soft: #7b5845;
  --orange: #f28e42;
  --sunset: #cf6428;
  --yellow: #f4c44d;
  --brass: #b08a3e;
  --blue: #27364e;
  --blue-deep: #1f2c41;
  --border: rgb(176 138 62 / 34%);
  --shadow: 0 28px 80px rgb(94 59 43 / 14%);
  --focus: #1769aa;
  --shell: 1120px;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--cream); color: var(--brown); line-height: 1.75; }
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
::selection { background: var(--yellow); color: var(--brown); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--blue);
  color: white;
  transform: translateY(-160%);
}
.skip-link:focus { transform: none; }
.shell { width: min(var(--shell), calc(100% - 48px)); margin-inline: auto; }

.site-header {
  position: absolute;
  z-index: 20;
  inset: 0 0 auto;
  border-bottom: 1px solid rgb(94 59 43 / 8%);
  background: linear-gradient(180deg, rgb(255 253 246 / 86%), rgb(255 253 246 / 52%));
  backdrop-filter: blur(12px);
}
.header-inner { display: flex; min-height: 76px; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 1.15rem; font-weight: 900; letter-spacing: .06em; text-decoration: none; }
.brand img, .footer-brand img { border-radius: 12px; box-shadow: 0 5px 18px rgb(94 59 43 / 14%); }
.site-header nav, footer nav { display: flex; align-items: center; gap: 28px; }
.site-header nav a, footer nav a { font-size: .85rem; font-weight: 700; text-decoration: none; text-underline-offset: 6px; }
.site-header nav a:hover, .site-header nav a:focus-visible, footer nav a:hover, footer nav a:focus-visible { color: #b95c20; }

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  padding: 140px 0 72px;
  background: radial-gradient(circle at 78% 28%, rgb(244 196 77 / 32%), transparent 29rem), linear-gradient(135deg, #fffdf7 0%, #fff8ee 52%, #f9e8c6 100%);
}
.hero::before {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgb(176 138 62 / 16%) 1px, transparent 1px);
  background-size: 26px 26px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}
.hero-glow { position: absolute; top: -170px; right: -160px; width: 540px; height: 540px; border: 1px solid rgb(176 138 62 / 15%); border-radius: 50%; }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(370px, .96fr); align-items: center; gap: 74px; }
.hero-copy { animation: hero-arrive 700ms cubic-bezier(.2, .72, .2, 1) both; }
.eyebrow, .section-kicker { margin: 0 0 16px; color: #a6531d; font-size: .76rem; font-weight: 900; letter-spacing: .16em; }
.eyebrow span { color: var(--brass); }
h1 { margin-bottom: 24px; font-size: clamp(3rem, 5.4vw, 4.25rem); line-height: 1.12; letter-spacing: -.055em; }
.hero-title-line { display: inline-block; white-space: nowrap; }
.hero-title-accent { color: #bd6127; }
.lead { margin-bottom: 30px; color: var(--brown-soft); font-size: 1.1rem; font-weight: 650; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-bottom: 28px; }
.play-coming {
  position: relative;
  display: inline-flex;
  min-width: 218px;
  min-height: 64px;
  align-items: center;
  gap: 12px;
  padding: 10px 15px;
  border: 1px solid rgb(255 255 255 / 25%);
  border-radius: 14px;
  background: var(--blue);
  box-shadow: 0 12px 26px rgb(39 54 78 / 18%);
  color: white;
  font-size: 1.04rem;
  font-weight: 700;
  line-height: 1.1;
}
.play-coming small { display: block; margin-bottom: 3px; font-size: .53rem; font-weight: 500; letter-spacing: .12em; }
.play-coming em { position: absolute; top: -8px; right: -10px; padding: 3px 9px; border-radius: 99px; background: var(--yellow); color: var(--brown); font-size: .65rem; font-style: normal; font-weight: 900; }
.play-mark { color: var(--yellow); font-size: 1.6rem; }
.text-link { display: inline-flex; align-items: center; gap: 10px; color: #9c4e1d; font-weight: 850; text-underline-offset: 5px; }
.trust-list { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 0; padding: 0; color: var(--brown-soft); font-size: .82rem; font-weight: 700; list-style: none; }
.trust-list span { color: #a6531d; }
.hero-visual { position: relative; display: grid; min-height: 570px; place-items: center; animation: hero-arrive 800ms 120ms cubic-bezier(.2, .72, .2, 1) both; }
.phone { position: relative; z-index: 2; width: min(340px, 80vw); padding: 11px; border: 1px solid rgb(255 255 255 / 35%); border-radius: 44px; background: var(--blue); box-shadow: 0 40px 90px rgb(39 54 78 / 25%), inset 0 0 0 2px rgb(255 255 255 / 8%); transform: rotate(3deg); }
.phone img { width: 100%; aspect-ratio: 9 / 16; border-radius: 34px; object-fit: cover; }
.phone-speaker { position: absolute; z-index: 3; top: 19px; left: 50%; width: 66px; height: 6px; border-radius: 10px; background: rgb(39 54 78 / 78%); transform: translateX(-50%); }
.orbit { position: absolute; border: 1px solid rgb(176 138 62 / 25%); border-radius: 50%; }
.orbit-one { width: 490px; height: 490px; }
.orbit-two { width: 410px; height: 410px; border-style: dashed; transform: rotate(21deg); }
.floating-note { position: absolute; z-index: 4; display: flex; align-items: center; gap: 8px; padding: 9px 14px; border: 1px solid rgb(255 255 255 / 75%); border-radius: 999px; background: rgb(255 253 246 / 87%); box-shadow: 0 12px 36px rgb(94 59 43 / 14%); backdrop-filter: blur(12px); font-size: .78rem; font-weight: 900; }
.floating-note span { color: var(--orange); }
.note-one { top: 94px; right: 0; }
.note-two { bottom: 90px; left: -8px; }

@keyframes hero-arrive {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.intro, .rules, .privacy-callout, .faq { padding: 112px 0; }
.intro { position: relative; overflow: hidden; background: var(--paper); text-align: center; }
.intro::before, .intro::after { position: absolute; border: 1px solid rgb(176 138 62 / 16%); border-radius: 50%; content: ""; pointer-events: none; }
.intro::before { top: -190px; left: -120px; width: 430px; height: 430px; }
.intro::after { right: -160px; bottom: -250px; width: 520px; height: 520px; border-style: dashed; }
.intro .shell { position: relative; }
h2 { margin-bottom: 20px; font-size: clamp(2rem, 4vw, 3.45rem); line-height: 1.25; letter-spacing: -.04em; }
.section-lead { max-width: 600px; margin: 0 auto 52px; color: var(--brown-soft); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; text-align: left; }
.feature-card { position: relative; min-height: 280px; overflow: hidden; padding: 30px; border: 1px solid var(--border); border-radius: 26px; background: linear-gradient(155deg, white, #fff9ed); box-shadow: 0 16px 42px rgb(94 59 43 / 7%); }
.feature-card::after { position: absolute; right: -32px; bottom: -44px; width: 124px; height: 124px; border: 1px solid rgb(176 138 62 / 20%); border-radius: 50%; content: ""; }
.feature-fact { display: flex; min-height: 94px; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; border-bottom: 1px solid var(--border); }
.feature-fact span { padding-top: 8px; color: var(--brass); font-family: Georgia, serif; font-size: .7rem; font-weight: 700; letter-spacing: .15em; }
.feature-fact strong { color: var(--sunset); font-size: 2.35rem; line-height: 1; letter-spacing: -.06em; }
.feature-fact small { margin-left: 3px; font-size: .85rem; letter-spacing: 0; }
.feature-grid h3 { margin-bottom: 10px; font-size: 1.25rem; }
.feature-grid p { margin-bottom: 0; color: var(--brown-soft); font-size: .92rem; }

.rules { position: relative; overflow: hidden; background: var(--blue); color: var(--paper); }
.rules::before { position: absolute; inset: 0; background-image: radial-gradient(circle, rgb(255 255 255 / 13%) 1px, transparent 1.5px); background-size: 34px 34px; content: ""; mask-image: linear-gradient(115deg, transparent 10%, black 60%, transparent 100%); pointer-events: none; }
.rules::after { position: absolute; top: -300px; right: -240px; width: 620px; height: 620px; border: 1px solid rgb(244 196 77 / 16%); border-radius: 50%; content: ""; pointer-events: none; }
.rules-grid { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 82px; }
.rules-grid > * { position: relative; z-index: 1; }
.rules .section-kicker { color: #f5ca68; }
.rules-copy > p:last-child { color: #d3d9e2; }
.rule-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 0; padding: 0; list-style: none; }
.rule-list li { padding: 28px 18px; border: 1px solid rgb(255 255 255 / 16%); border-radius: 22px; background: rgb(255 255 255 / 7%); text-align: center; }
.rule-list span { display: grid; width: 62px; height: 62px; margin: 0 auto 18px; place-items: center; border-radius: 18px; background: var(--yellow); color: var(--brown); font-size: 1.3rem; font-weight: 900; white-space: nowrap; transform: rotate(-3deg); }
.rule-list li:nth-child(2) span { background: #f3af7a; transform: rotate(2deg); }
.rule-list li:nth-child(3) span { background: #c9d8ef; font-size: 1rem; letter-spacing: -.06em; transform: rotate(-1deg); }
.rule-list p { margin: 0; font-size: .86rem; font-weight: 700; }

.privacy-callout { background: var(--paper-warm); }
.privacy-card { position: relative; display: grid; grid-template-columns: 1fr .8fr; align-items: end; gap: 90px; overflow: hidden; padding: 56px 64px; border: 1px solid var(--border); border-radius: 34px; background: var(--paper); box-shadow: var(--shadow); }
.privacy-card::after { position: absolute; top: -84px; right: -72px; width: 220px; height: 220px; border: 30px double rgb(176 138 62 / 9%); border-radius: 50%; content: ""; pointer-events: none; }
.privacy-card > * { position: relative; z-index: 1; }
.privacy-card h2 { margin-bottom: 0; }
.privacy-card > div:last-child p { color: var(--brown-soft); }

.faq { background: #fffdf8; }
.faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 84px; }
.faq-intro { max-width: 340px; color: var(--brown-soft); }
.contact-button { display: inline-flex; align-items: center; gap: 10px; padding: 13px 20px; border: 1px solid var(--brass); border-radius: 14px; background: var(--yellow); box-shadow: 0 8px 20px rgb(176 138 62 / 18%); font-weight: 900; text-decoration: none; transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease; }
.contact-button:hover, .contact-button:focus-visible { background: #f7d77c; }
.faq-list { border-top: 1px solid var(--border); }
.faq-list details { border-bottom: 1px solid var(--border); transition: background-color 180ms ease; }
.faq-list details[open] { background: rgb(249 232 198 / 24%); }
.faq-list summary { position: relative; padding: 24px 48px 24px 0; cursor: pointer; font-weight: 850; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; top: 22px; right: 4px; content: "+"; color: var(--brass); font-size: 1.5rem; line-height: 1; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin-bottom: 24px; padding-right: 34px; color: var(--brown-soft); }

footer { padding: 34px 0; background: var(--blue-deep); color: white; }
.footer-inner, .footer-brand { display: flex; align-items: center; }
.footer-inner { justify-content: space-between; gap: 32px; }
.footer-brand { gap: 14px; }
.footer-brand strong, .footer-brand small { display: block; }
.footer-brand strong { letter-spacing: .08em; }
.footer-brand small { margin-top: 2px; color: #bcc5d3; font-size: .7rem; }
footer nav { flex-wrap: wrap; justify-content: flex-end; }
.mobile-only { display: none; }

@media (max-width: 920px) {
  .site-header nav a:nth-child(-n + 2) { display: none; }
  .hero-grid { grid-template-columns: 1fr 380px; gap: 24px; }
  .rules-grid, .privacy-card, .faq-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 32px, var(--shell)); }
  .header-inner { min-height: 68px; }
  .site-header nav { gap: 16px; }
  .site-header nav a { font-size: .74rem; }
  .hero { padding: 112px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-copy { text-align: center; }
  h1 { font-size: clamp(2.3rem, 11.5vw, 4.3rem); }
  .hero-actions, .trust-list { justify-content: center; }
  .hero-visual { min-height: 560px; }
  .note-one { right: 2px; }
  .note-two { left: 2px; }
  .intro, .rules, .privacy-callout, .faq { padding: 82px 0; }
  .feature-grid, .rule-list { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .feature-fact { min-height: 78px; }
  .rule-list li { display: grid; grid-template-columns: 62px 1fr; align-items: center; gap: 18px; text-align: left; }
  .rule-list span { margin: 0; }
  .privacy-card { padding: 38px 28px; }
  .footer-inner { align-items: flex-start; }
  footer nav { display: grid; gap: 8px; text-align: right; }
  .mobile-only { display: initial; }
}

@media (max-width: 520px) {
  .brand img { width: 38px; height: 38px; }
  .site-header nav a:first-of-type { display: none; }
  .hero-actions { flex-direction: column; }
  .wide-only { display: none; }
  .hero-visual { min-height: 500px; }
  .phone { width: 280px; }
  .orbit-one { width: 360px; height: 360px; }
  .orbit-two { width: 310px; height: 310px; }
  .floating-note { font-size: .7rem; }
  .note-one { top: 78px; }
  .note-two { bottom: 66px; }
  .footer-inner { display: grid; }
  footer nav { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (hover: hover) {
  .feature-card { transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease; }
  .feature-card:hover { transform: translateY(-6px); border-color: rgb(176 138 62 / 52%); box-shadow: 0 22px 50px rgb(94 59 43 / 12%); }
  .contact-button:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgb(176 138 62 / 24%); }
}

/* プライバシーポリシーとエラーページ */
.subpage-header { position: relative; background: rgb(255 253 246 / 92%); }
.legal-main { padding: 82px 0 112px; background: linear-gradient(180deg, var(--cream), var(--paper-warm)); }
.legal-shell { max-width: 860px; }
.legal-heading { margin-bottom: 40px; text-align: center; }
.legal-heading h1 { margin-bottom: 14px; font-size: clamp(2.5rem, 7vw, 4.3rem); }
.legal-heading > p:last-child { color: var(--brown-soft); font-size: .85rem; }
.legal-document { padding: 56px 64px; border: 1px solid var(--border); border-radius: 30px; background: var(--paper); box-shadow: var(--shadow); }
.legal-document > p:first-child { margin-bottom: 42px; font-weight: 650; }
.legal-document section + section { margin-top: 44px; }
.app-list-card { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 28px; }
.app-list-card h2 { margin-bottom: 8px; font-size: 1.8rem; }
.app-list-card p { color: var(--brown-soft); }
.app-list-icon { border-radius: 22px; box-shadow: 0 12px 30px rgb(94 59 43 / 16%); }

@media (max-width: 520px) {
  .app-list-card { grid-template-columns: 1fr; text-align: center; }
  .app-list-icon { margin-inline: auto; }
}
.legal-document h2 { margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); font-size: 1.35rem; letter-spacing: -.02em; }
.legal-document p, .legal-document li { color: var(--brown-soft); }
.legal-document ul { margin: 14px 0 0; padding-left: 1.4em; }
.legal-document li + li { margin-top: 7px; }
.legal-document .contact-button { color: var(--brown); }
.back-link { display: inline-flex; gap: 10px; margin-top: 34px; color: #9c4e1d; font-weight: 850; text-underline-offset: 5px; }

.not-found-page { display: grid; min-height: 100vh; place-items: center; padding: 32px; text-align: center; }
.not-found-page main { max-width: 620px; }
.not-found-page img { margin: 0 auto 28px; border-radius: 28px; box-shadow: var(--shadow); }
.not-found-page h1 { margin-bottom: 18px; font-size: clamp(2.3rem, 8vw, 4rem); }
.not-found-page p:not(.section-kicker) { margin-bottom: 28px; color: var(--brown-soft); }

@media (max-width: 760px) {
  .legal-main { padding: 58px 0 82px; }
  .legal-document { padding: 36px 26px; border-radius: 24px; }
  .subpage-header nav a:first-child { display: none; }
}