:root { --ink:#1C211B; --sub:#5C6158; --paper:#F5F3EC; --surface:#FFFFFF; --line:#D9D6CC; --primary:#2E5E3A; --on-primary:#F5F3EC; --danger:#A63D2A; }
@media (prefers-color-scheme: dark) {
  :root { --ink:#ECEBE4; --sub:#A7ABA2; --paper:#151814; --surface:#20241F; --line:#3A3F37; --primary:#7DB38A; --on-primary:#0F1A12; --danger:#E27A64; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink);
  font: 17px/1.8 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif; }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { padding-top: max(20px, env(safe-area-inset-top)); }
.brand { font-weight: 700; font-size: 20px; color: var(--primary); text-decoration: none; }
h1 { font-size: 28px; line-height: 1.4; margin: 28px 0 12px; }
h2 { font-size: 19px; margin: 32px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
a { color: var(--primary); }
.lead { color: var(--sub); }
.legal ol, .legal ul { padding-left: 1.4em; }
.legal li { margin: 4px 0; }
.updated, .note { color: var(--sub); font-size: 14px; }
table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: 14px; overflow: hidden; }
th, td { text-align: left; vertical-align: top; padding: 14px 16px; border-bottom: 1px solid var(--line); }
th { width: 34%; font-weight: 600; font-size: 15px; }
@media (max-width: 560px) { th, td { display: block; width: auto; } th { border-bottom: none; padding-bottom: 0; } }
.links { display: grid; gap: 10px; margin: 24px 0; }
.links a { display: block; padding: 16px 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: var(--ink); font-weight: 600; }
.card { display: grid; gap: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 20px; }
label { display: grid; gap: 6px; font-weight: 600; font-size: 15px; }
input, select, textarea { font: inherit; font-weight: 400; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; min-height: 48px; width: 100%; }
textarea { resize: vertical; }
button { font: inherit; font-weight: 700; color: var(--on-primary); background: var(--primary); border: 0; border-radius: 14px; min-height: 52px; cursor: pointer; }
.error { color: var(--danger); font-weight: 600; }
a.button { display: block; text-align: center; font-weight: 700; color: var(--on-primary); background: var(--primary); border-radius: 14px; padding: 16px; text-decoration: none; margin: 20px 0; }
.card button { width: 100%; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
footer { display: flex; flex-wrap: wrap; gap: 8px 18px; padding-top: 40px; padding-bottom: max(32px, env(safe-area-inset-bottom)); font-size: 14px; }
footer a { color: var(--sub); }