body { font-family: system-ui, -apple-system, Segoe UI, Roboto, "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; line-height:1.6; margin:0; background:#f7f7f8; }
.container { max-width: 720px; margin: 0 auto; padding: 16px; background:#fff; }
h1 { font-size: 1.25rem; margin: 0 0 12px; }
.f { margin: 12px 0; }
.f label { display:block; font-weight:600; margin-bottom:6px; }
input[type=text], input[type=tel], input[type=email], select, textarea { width:100%; padding:10px; border:1px solid #ddd; border-radius:6px; }
label input[type=checkbox], label input[type=radio] { margin-right:6px; }
.actions { margin-top: 16px; }
.actions .inline { display:inline-block; margin-right:8px; }
button { padding:10px 16px; border:0; border-radius:6px; background:#111; color:#fff; cursor:pointer; }
.confirm dt { font-weight:700; }
.confirm dd { margin:0 0 8px 0; }
.error { background:#ffecec; color:#b30000; padding:10px; border-radius:6px; margin:10px 0; }
.notice { background:#eef6ff; color:#05315c; padding:10px; border-radius:6px; margin:10px 0; }
.checklist li { margin:4px 0; }