:root {
  --bg: #0b0806;
  --surface: #15100b;
  --ink: #f3e9dc;
  --ink-soft: #b3a594;
  --line: #2c2219;
  --gold: #ffb347;
  --shu: #ff7a59;
}


* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  line-height: 1.9;
  -webkit-text-size-adjust: 100%;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 2.4rem; letter-spacing: 0.3em; margin: 12px 0 0; }
h2 { font-size: 1.15rem; margin: 40px 0 12px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
h3 { font-size: 1rem; margin: 24px 0 6px; }
p, li { font-family: "Hiragino Sans", "Yu Gothic", system-ui, sans-serif; font-size: 0.95rem; }
a { color: var(--shu); }
.hero { text-align: center; }
.hero img { border-radius: 22px; box-shadow: 0 4px 18px rgba(0,0,0,.08); }
.kana { color: var(--ink-soft); letter-spacing: 0.3em; font-size: 0.8rem; margin: 0; }
.lead { font-family: inherit; font-size: 1.2rem; margin-top: 24px; }
.promises ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; }
.promises li { display: flex; gap: 14px; align-items: flex-start; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.seal { flex: none; width: 34px; height: 34px; display: grid; place-items: center; background: var(--shu); color: #fff; border-radius: 4px; font-weight: 700; font-size: 1.05rem; }
.promises strong { font-size: 1.1rem; display: block; line-height: 1.6; }
.promises p { margin: 2px 0 0; color: var(--ink-soft); font-size: 0.85rem; line-height: 1.7; }
.note { color: var(--ink-soft); font-size: 0.8rem; margin-top: 16px; }
.links { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-top: 48px; font-family: "Hiragino Sans", system-ui, sans-serif; font-size: 0.9rem; }
.updated { color: var(--ink-soft); font-size: 0.8rem; }
.poem { font-family: inherit; font-size: 1.02rem; text-align: center; line-height: 2.1; }
.poem strong { font-size: 1.2rem; }

html { background: var(--bg); }
body { background-image: linear-gradient(#ffffff08 1px, transparent 1px), linear-gradient(90deg, #ffffff08 1px, transparent 1px); background-size: 32px 32px; }
.jw-back { display: inline-block; margin: 18px 0 8px; font-family: "SF Mono", "Menlo", "Consolas", monospace; font-size: 0.92rem; text-decoration: none; color: var(--ink-soft); }
.jw-back b { font-weight: 700; background: linear-gradient(90deg, #ffd27a, #ff7a1a); -webkit-background-clip: text; background-clip: text; color: transparent; }
.jw-back i { display: inline-block; width: .55em; height: .9em; background: #ffb347; vertical-align: -0.1em; margin-left: .05em; box-shadow: 0 0 10px #ffb347; animation: jwblink 1.1s steps(1) infinite; }
@keyframes jwblink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .jw-back i { animation: none; } }

.appstore { text-align: center; margin: 4px 0 28px; }
.appstore a { display: inline-block; text-decoration: none; background: var(--gold); color: #0b0806; font-weight: 700; padding: 10px 22px; border-radius: 999px; font-family: "Hiragino Sans", sans-serif; box-shadow: 0 0 24px #ff7a1a33; }