:root {
  --paper: #fff6dc;
  --ink: #1a1a1a;
  --yellow: #ffd21f;
  --red: #e8392e;
  --blue: #2f7bf6;
  --card: #ffffff;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(0,0,0,.08) 1.4px, transparent 1.5px);
  background-size: 12px 12px;
  font-family: "Hiragino Maru Gothic ProN", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  line-height: 1.75;
}
a { color: var(--blue); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }

/* ヒーロー: 集中線 */
header.hero {
  background: repeating-conic-gradient(from 0deg at 50% 60%, var(--yellow) 0deg 4deg, #ffe45e 4deg 8deg);
  border-bottom: 5px solid var(--ink);
  text-align: center;
  padding: 40px 0 36px;
}
.hero .icon { width: 112px; height: 112px; border-radius: 26px; border: 4px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); }
.hero h1 {
  margin: 18px 0 4px;
  font-size: clamp(40px, 9vw, 64px);
  font-weight: 900;
  color: #fff;
  letter-spacing: .02em;
  -webkit-text-stroke: 3px var(--ink);
  paint-order: stroke fill;
  text-shadow: 5px 5px 0 var(--ink);
  transform: rotate(-2deg);
}
.hero .tag { display: inline-block; margin: 10px 0 14px; padding: 4px 16px; background: var(--red); color: #fff; font-weight: 900; border: 3px solid var(--ink); border-radius: 999px; box-shadow: 4px 4px 0 var(--ink); }
.hero .lead { max-width: 620px; margin: 0 auto 18px; font-weight: 700; }
.badge {
  display: inline-block; padding: 14px 28px; background: var(--ink); color: #fff; text-decoration: none;
  font-weight: 900; border-radius: 14px; border: 3px solid var(--ink); box-shadow: 5px 5px 0 rgba(0,0,0,.35);
}
.badge.soon { background: #fff; color: var(--ink); }
.meta { font-size: 13px; margin-top: 14px; opacity: .8; }

section { margin: 44px 0; }
h2 {
  display: inline-block; font-size: 24px; font-weight: 900; margin: 0 0 16px; padding: 4px 16px;
  background: var(--ink); color: #fff; transform: rotate(-1.5deg);
}
.panel, .card, details {
  background: var(--card); border: 3px solid var(--ink); border-radius: 14px; box-shadow: 5px 5px 0 var(--ink);
}
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.card { padding: 16px 18px; }
.card b { font-size: 18px; color: var(--red); }
.card p { margin: 6px 0 0; }

.shots { display: flex; gap: 14px; overflow-x: auto; padding: 4px 4px 14px; scroll-snap-type: x mandatory; }
.shots img { width: 220px; flex: none; border: 3px solid var(--ink); border-radius: 18px; scroll-snap-align: start; }

.charas { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.charas figure { margin: 0; padding: 10px 8px 12px; text-align: center; background: #fff; border: 3px solid var(--ink); border-radius: 12px; box-shadow: 4px 4px 0 var(--ink); }
.charas img { width: 100%; height: 130px; object-fit: contain; }
.charas figcaption { font-weight: 900; font-size: 13px; line-height: 1.4; }
.charas .secret { background: #eee; }
.note { font-size: 13px; opacity: .75; }
.more { font-weight: 900; margin: 16px 0 4px; }

details { padding: 12px 16px; margin-bottom: 12px; }
summary { font-weight: 900; cursor: pointer; }
details p { margin: 8px 0 0; }

.support dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; padding: 16px 18px; margin: 0; }
.support dt { font-weight: 900; }
.support dd { margin: 0; }

footer { border-top: 4px solid var(--ink); background: var(--yellow); padding: 20px 0; text-align: center; font-size: 14px; }
footer nav a { margin: 0 10px; color: var(--ink); font-weight: 700; }

/* 規約ページ */
.doc { padding: 28px 16px 60px; }
.doc h1 { font-size: 28px; font-weight: 900; }
.doc h2 { font-size: 18px; transform: none; margin-top: 18px; }
.updated { font-size: 13px; opacity: .7; }

@media (max-width: 480px) {
  .shots img { width: 180px; }
  .charas { grid-template-columns: repeat(2, 1fr); }
}