:root{--bg:#0b0d10;--card:#141820;--text:#eef1f5;--muted:#a6afbd;--line:#2a313d;--accent:#e7b36a;--max:1040px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;background:var(--bg);color:var(--text);line-height:1.8}a{color:var(--accent)}header{border-bottom:1px solid var(--line);background:#0d1015;position:sticky;top:0}nav{max-width:var(--max);margin:auto;padding:14px 20px;display:flex;justify-content:space-between;gap:20px;align-items:center}.brand{font-weight:800;letter-spacing:.08em;color:var(--text);text-decoration:none}.links{display:flex;gap:16px;flex-wrap:wrap}.links a{color:var(--muted);text-decoration:none;font-size:14px}main{max-width:var(--max);margin:auto;padding:42px 20px 70px}.hero{padding:36px 0 20px}.eyebrow{font-size:13px;color:var(--accent);font-weight:700;letter-spacing:.1em}.hero h1{font-size:clamp(32px,5vw,58px);line-height:1.15;margin:.25em 0}.lead{font-size:18px;color:#cbd2dc;max-width:760px}.notice{border:1px solid #5a472c;background:#18140f;padding:14px 16px;border-radius:12px;margin:24px 0}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}.card h2,.card h3{margin-top:0}.meta{font-size:13px;color:var(--muted)}.tag{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:3px 9px;font-size:12px;color:var(--muted);margin:0 4px 4px 0}.section{margin-top:48px}.section h2{font-size:26px}.article{max-width:760px}.article h1{line-height:1.35}.article h2{margin-top:34px}.article p,.article li{color:#d9dee7}footer{border-top:1px solid var(--line);color:var(--muted);padding:28px 20px;font-size:13px}.foot{max-width:var(--max);margin:auto}.agegate{position:fixed;inset:0;background:rgba(3,4,6,.96);display:flex;align-items:center;justify-content:center;padding:20px;z-index:9999}.agegate.hidden{display:none}.agebox{max-width:520px;background:#11151b;border:1px solid var(--line);border-radius:16px;padding:28px}.agebox h2{margin-top:0}.btns{display:flex;gap:12px;flex-wrap:wrap}.btn{appearance:none;border:0;border-radius:10px;padding:11px 16px;font-weight:700;cursor:pointer}.yes{background:var(--accent);color:#16110b}.no{background:#262d37;color:var(--text)}