:root{color-scheme:light;--ink:#202c50;--accent:#fff2bc}*{box-sizing:border-box}body{margin:0;background:#f2f4f8;color:var(--ink);font:16px/1.75 system-ui,-apple-system,"Noto Sans JP",sans-serif}.rcm-shell{max-width:580px;margin:40px auto;padding:36px;background:#fff;border-radius:18px;box-shadow:0 12px 50px #20304f0a}.brand{font-size:21px;font-weight:850;text-decoration:none}.eyebrow{font-size:14px;margin:28px 0 4px}h1{font-size:28px;line-height:1.4;margin:0 0 20px}label{display:block;font-weight:650;margin:18px 0 8px}input{display:block;width:100%;min-height:46px;border:1px solid #b7bfd0;border-radius:8px;padding:10px 12px;font:inherit;color:inherit}button,.primary{display:block;width:100%;border:0;border-radius:8px;background:var(--ink);color:#fff;font:700 16px/1.5 system-ui;padding:13px 16px;cursor:pointer;text-align:center;text-decoration:none;margin-top:22px}a{color:var(--ink);text-underline-offset:4px}.secondary{background:#e9edf5;color:var(--ink)}.hint{font-size:14px;color:#536078}.notice{padding:16px;background:var(--accent);border-radius:10px;margin:16px 0}details{border-top:1px solid #e1e6ed;margin-top:24px;padding-top:18px}summary{cursor:pointer;font-weight:650}.honey{position:absolute;left:-9999px}input:focus,button:focus,a:focus,summary:focus{outline:3px solid #cbb658;outline-offset:3px}@media(max-width:600px){.rcm-shell{margin:0;min-height:100vh;border-radius:0;padding:24px 20px}h1{font-size:25px}}