:root{--bg:#fffaf5;--text:#2b2b2b;--accent:#c8372d;--accent2:#1f6b4f;--card:#fff;--line:#eadfd3}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;background:var(--bg);color:var(--text);line-height:1.8}
header.site{background:var(--accent);color:#fff;padding:14px 16px}
header.site a{color:#fff;text-decoration:none;font-weight:700;font-size:1.1rem}
nav.site{display:flex;gap:16px;padding:10px 16px;background:#fff;border-bottom:1px solid var(--line);font-size:.9rem;flex-wrap:wrap}
nav.site a{color:var(--text);text-decoration:none}
main{max-width:760px;margin:0 auto;padding:20px 16px 60px}
h1{font-size:1.5rem;line-height:1.4}
h2{font-size:1.25rem;border-left:6px solid var(--accent);padding-left:10px;margin-top:2.2em}
h3{font-size:1.05rem;margin-top:1.6em}
.pr{font-size:.8rem;background:#f1ece4;padding:6px 10px;border-radius:4px;display:inline-block}
.cards{display:grid;gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.card a{color:var(--accent);font-weight:700;text-decoration:none}
.box{background:#fff3e6;border:1px solid #f0cfa8;border-radius:8px;padding:12px 14px;margin:1.2em 0}
.todo{background:#eef6ff;border:1px dashed #6aa3e0;padding:10px 12px;border-radius:6px;font-size:.9rem}
table{border-collapse:collapse;width:100%;font-size:.9rem;background:#fff}
th,td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}
th{background:#f7efe5}
.btn{display:inline-block;background:var(--accent2);color:#fff;padding:10px 18px;border-radius:6px;text-decoration:none;font-weight:700;margin:6px 0}
footer{border-top:1px solid var(--line);padding:20px 16px;text-align:center;font-size:.8rem;color:#777}
footer a{color:#777}