:root{--bg:#f6f7f9;--surface:#fff;--text:#1f2328;--muted:#5b636e;--line:#d5d9df;--accent:#1f5fbf;--danger:#c62828;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Hiragino Sans,Noto Sans JP,sans-serif}*{box-sizing:border-box}body{background:var(--bg);margin:0}main{max-width:760px;margin:0 auto;padding:24px 16px 64px}h1{margin:0 0 8px;font-size:1.5rem}.lead{color:var(--muted);margin:0 0 24px;line-height:1.6}section{background:var(--surface);border-radius:10px;margin-bottom:16px;padding:16px}h2{margin:0 0 12px;font-size:1.05rem}.field{flex-direction:column;flex:1;gap:4px;min-width:0;margin-bottom:12px;display:flex}.label{font-size:.9rem;font-weight:600}.req{color:var(--danger);margin-left:6px;font-size:.7rem}input:not([type=checkbox]):not([type=radio]),select,textarea{font:inherit;border:1px solid var(--line);background:#fff;border-radius:6px;width:100%;padding:10px;font-size:16px}.has-error input,.has-error select,.has-error textarea{border-color:var(--danger)}.row{gap:12px;display:flex}.checks{flex-wrap:wrap;gap:4px 16px;margin-bottom:8px;display:flex}.check{align-items:center;gap:6px;padding:6px 0;display:inline-flex}.hint{color:var(--muted);font-size:.82rem;line-height:1.5}.error{color:var(--danger);font-size:.85rem}.center{text-align:center}.actions{flex-wrap:wrap;justify-content:flex-end;gap:12px;margin-top:16px;display:flex}button{font:inherit;border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:6px;padding:10px 18px}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button:disabled{opacity:.6}button.link{color:var(--accent);font-size:inherit;background:0 0;border:none;padding:0 4px;text-decoration:underline}dd button{margin-left:8px;padding:4px 10px;font-size:.85rem}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{border:1px solid var(--line);text-align:left;vertical-align:top;white-space:pre-wrap;word-break:break-word;padding:8px}th{white-space:nowrap;background:#eef2f7}dt{margin-top:12px;font-weight:600}dd{word-break:break-all;margin:4px 0 0}@media (width<=560px){.row{flex-direction:column;gap:0}th{white-space:normal}}.guide ol{margin:8px 0;padding-left:1.4em;line-height:1.7}.guide p{margin:0 0 8px;line-height:1.6}.notice{border-radius:6px;padding:10px 12px;font-size:.9rem;line-height:1.6}.notice.ok{background:#e8f3ea}.notice.warn{background:#fff4e0}a.button{border-radius:6px;padding:10px 18px;text-decoration:none;display:inline-block}a.button.primary{background:var(--accent);color:#fff;font-weight:600}.actions.start{justify-content:flex-start}.opt{color:var(--muted);margin-left:6px;font-size:.7rem;font-weight:400}textarea.mail-body{background:#fafbfc;margin-bottom:6px;font-size:.85rem;display:block}dd textarea.mail-body+button{margin-left:0}footer{color:var(--muted);text-align:center;margin-top:32px;font-size:.78rem;line-height:1.6}footer p{margin:0 0 4px}.remember{margin-top:16px}.remember .hint{margin:4px 0 0}.checks.column{flex-direction:column;gap:0}.nowrap{white-space:nowrap}