:root {
  --lining: #F4F0EA; --surface: #FFFFFF; --ink: #1F1813; --ink-sub: #675B53;
  --leather: #3A2A20; --on-leather: #F7EFE6; --on-leather-sub: #CDBBA8; --stitch: #C9A27C;
  --mikan: #E48C00; --mikan-edge: #A86400; --paper: #FFF1CC;
}
@media (prefers-color-scheme: dark) {
  :root { --lining: #14100D; --surface: #1E1814; --ink: #F3ECE4; --ink-sub: #A89C92;
    --leather: #261B15; --on-leather: #F2E9DF; --on-leather-sub: #BFAE9C; --stitch: #7A5F47;
    --mikan-edge: #E48C00; --paper: #3A3120; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--lining); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  line-height: 1.8; font-size: 16px; }
a { color: var(--mikan-edge); }
.container { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.nav { background: var(--leather); border-bottom: 2px dashed var(--stitch); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--on-leather); text-decoration: none; font-weight: 700; font-size: 18px; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.nav-links { display: flex; gap: 18px; }
.nav-links a { color: var(--on-leather-sub); text-decoration: none; font-size: 15px; }
.hero { background: var(--leather); color: var(--on-leather); padding: 48px 0 64px; border-bottom-left-radius: 28px; border-bottom-right-radius: 28px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.35; margin: 0 0 16px; }
.hero h1 em { font-style: normal; background: var(--mikan); color: #1F1813; padding: 0 6px; border-radius: 6px; }
.hero .lead { color: var(--on-leather-sub); font-size: 17px; margin: 0 0 24px; }
.hero-shot img { width: 100%; max-width: 320px; display: block; margin: 0 auto; border-radius: 32px; box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.badge-soon { display: inline-block; background: var(--mikan); color: #1F1813; font-weight: 700; padding: 10px 18px; border-radius: 999px; }
.hero-note { color: var(--on-leather-sub); font-size: 14px; margin-left: 12px; }
.section { padding: 56px 0; }
.section-label { display: inline-block; color: var(--mikan-edge); font-weight: 700; font-size: 14px; letter-spacing: .05em; }
h2 { font-size: clamp(22px, 3.4vw, 30px); line-height: 1.45; margin: 6px 0 16px; }
.feature { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: center; padding: 36px 0; border-top: 2px dashed rgba(168,100,0,.25); }
.feature:nth-of-type(even) { grid-template-columns: 300px 1fr; }
.feature:nth-of-type(even) > img { order: -1; }
.feature img { width: 100%; border-radius: 28px; box-shadow: 0 12px 30px rgba(0,0,0,.15); }
.desc { color: var(--ink-sub); }
.ticket { display: grid; grid-template-columns: 72px 1fr; background: var(--paper); border: 2px solid var(--mikan-edge); border-radius: 14px; overflow: hidden; max-width: 420px; }
.ticket .stub { background: var(--mikan); color: #1F1813; font-weight: 800; display: grid; place-items: center; text-align: center; border-right: 3px dotted rgba(31,24,19,.4); line-height: 1.2; padding: 10px 4px; }
.ticket .body { padding: 12px 16px; }
.plus { background: var(--surface); border-radius: 20px; padding: 28px; }
.plus ul { padding-left: 1.2em; }
.note { font-size: 14px; color: var(--ink-sub); }
.footer { background: var(--leather); color: var(--on-leather-sub); padding: 32px 0; margin-top: 40px; font-size: 14px; border-top: 2px dashed var(--stitch); }
.footer a { color: var(--on-leather); margin-right: 16px; }
.doc { max-width: 760px; margin: 0 auto; padding: 32px 20px 24px; }
.doc h1 { font-size: 30px; margin: 12px 0 4px; }
.doc h2 { font-size: 20px; margin-top: 32px; }
.updated { color: var(--ink-sub); font-size: 14px; }
.callout { background: var(--surface); border-left: 6px solid var(--mikan); padding: 14px 18px; border-radius: 10px; margin: 20px 0; }
.back-home { text-decoration: none; font-size: 14px; }
details { background: var(--surface); border-radius: 12px; padding: 12px 16px; margin: 10px 0; }
summary { font-weight: 700; cursor: pointer; }
@media (max-width: 760px) {
  .hero-grid, .feature, .feature:nth-of-type(even) { grid-template-columns: 1fr; }
  .feature:nth-of-type(even) > img { order: 0; }
  .feature img { max-width: 300px; margin: 0 auto; display: block; }
  .hero-note { display: block; margin: 10px 0 0; }
}