:root {
  --bg: #fff7fa; --card: #fff; --text: #2a1f26; --muted: #7a6470;
  --accent: #d6336c; --accent-weak: #fde4ee; --on-accent: #fff;
  --border: #f3d9e3; --pr: #8a6d00; --pr-weak: #fff4cc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17121a; --card: #221a25; --text: #f4ecf1; --muted: #b9a6b3;
    --accent: #ff7aa8; --accent-weak: #3a2030; --on-accent: #1a0f15;
    --border: #3a2d38; --pr: #ffd55c; --pr-weak: #3a3010;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.8;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif; }
a { color: var(--accent); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 20px; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
h1 { font-size: 1.5rem; line-height: 1.4; }
.pr { display: inline-block; padding: 2px 10px; border-radius: 6px; background: var(--pr-weak); color: var(--pr);
  font-size: .8rem; font-weight: 700; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; margin: 16px 0; }
.btn { display: inline-block; padding: 10px 20px; border-radius: 999px; border: 0; background: var(--accent);
  color: var(--on-accent); font-weight: 700; text-decoration: none; cursor: pointer; font-size: 1rem; }
.btn.sub { background: transparent; color: var(--muted); border: 1px solid var(--border); }
footer { padding: 32px 16px; color: var(--muted); font-size: .85rem; }
footer a { color: var(--muted); margin-right: 12px; }

/* 年齢確認 */
#agegate { position: fixed; inset: 0; background: var(--bg); display: grid; place-items: center; padding: 16px; z-index: 10; }
#agegate .card { max-width: 420px; text-align: center; }
#agegate .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
html.age-ok #agegate { display: none; }

/* ランキング */
.ranking { display: grid; gap: 12px; margin: 16px 0; }
.ranking .item { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 16px; background: var(--card);
  border: 1px solid var(--border); color: var(--text); text-decoration: none; }
.ranking .item:hover { border-color: var(--accent); }
.ranking .rank { flex: none; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%;
  background: var(--accent-weak); color: var(--accent); font-weight: 700; }
.ranking img { flex: none; width: 90px; height: auto; border-radius: 8px; }
.ranking strong { display: block; font-size: .95rem; line-height: 1.5; }
.ranking small { color: var(--muted); }
.credit { font-size: .8rem; }
.credit a { color: var(--muted); }

/* 記事一覧 */
.lead { color: var(--muted); }
.list { display: grid; gap: 12px; margin: 12px 0 24px; }
.list a { display: block; padding: 16px 20px; border-radius: 16px; background: var(--card); border: 1px solid var(--border);
  color: var(--text); text-decoration: none; }
.list a:hover { border-color: var(--accent); }
.list strong { display: block; }
.list small { color: var(--muted); }
.note { font-size: .8rem; color: var(--muted); }
.card h2 { margin-top: 0; font-size: 1.15rem; }
.card ol, .card ul { padding-left: 1.3em; }
.card li { margin: 6px 0; }
.card.minus { border-left: 4px solid var(--pr); }

/* ロゴ・バナー */
header { display: flex; align-items: center; }
.brand { display: inline-flex; align-items: center; gap: 8px; }
.brand .logo { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, #2b1846, #5a1f4f); font-size: 1rem; }
.banner { position: relative; overflow: hidden; display: flex; align-items: center; gap: 16px; margin: 16px 0 20px;
  padding: 22px 20px; border-radius: 20px; color: #f7eef6;
  background:
    radial-gradient(1.5px 1.5px at 12% 22%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 28% 70%, #fff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 46% 18%, #ffe9a8 50%, transparent 51%),
    radial-gradient(1px 1px at 64% 58%, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 82% 26%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 92% 78%, #ffe9a8 50%, transparent 51%),
    radial-gradient(120% 90% at 100% 0%, #b8326e 0%, transparent 55%),
    linear-gradient(135deg, #140c24 0%, #2b1846 55%, #4a1a45 100%); }
.banner h1 { margin: 0; color: #fff; }
.banner .lead { margin: 6px 0 0; color: #e6d5e4; font-size: .92rem; }
.banner-icon { flex: none; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 18px;
  background: rgba(255, 255, 255, .12); font-size: 1.8rem; }
.banner.big { flex-direction: column; text-align: center; padding: 44px 20px 40px; }
.banner.big h1 { font-size: 2rem; letter-spacing: .08em; }
.banner.big .banner-icon { width: 76px; height: 76px; border-radius: 50%; font-size: 2.6rem;
  box-shadow: 0 0 40px rgba(255, 220, 150, .45); }
.list a { display: flex; align-items: center; gap: 14px; }
.li-icon { flex: none; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px;
  background: var(--accent-weak); font-size: 1.4rem; }
.card.soon { display: flex; align-items: center; gap: 14px; }
.card.soon p { margin: 0; color: var(--muted); }
main h2 { font-size: 1.2rem; margin-top: 28px; }

/* 年齢確認もバナーと同じ夜空に */
#agegate { background:
    radial-gradient(1.5px 1.5px at 12% 18%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 30% 80%, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 78% 14%, #ffe9a8 50%, transparent 51%),
    radial-gradient(1px 1px at 88% 66%, #fff 50%, transparent 51%),
    radial-gradient(90% 60% at 100% 0%, #b8326e 0%, transparent 60%),
    linear-gradient(160deg, #140c24 0%, #2b1846 60%, #4a1a45 100%); }
#agegate .card { border: 0; box-shadow: 0 10px 40px rgba(0, 0, 0, .35); }
#agegate .card::before { content: "🌙"; display: block; font-size: 2.4rem; }
@media (max-width: 520px) {
  .banner:not(.big) { flex-direction: column; align-items: flex-start; gap: 10px; }
  .banner:not(.big) .banner-icon { width: 44px; height: 44px; border-radius: 14px; font-size: 1.4rem; }
}