:root{color-scheme:light;--ink:#17191d;--muted:#606975;--line:#dfe4ea;--accent:#ef3d38;--panel:#fff;--bg:#f4f6f8}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif}.push-shell{width:min(720px,100%);margin:0 auto;padding:24px 16px 60px}.push-back{display:inline-block;margin-bottom:18px;color:#3d4854;text-decoration:none;font-weight:700}.push-card{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:clamp(24px,6vw,48px);box-shadow:0 18px 45px rgba(27,34,43,.08);text-align:center}.push-bell{font-size:48px}.push-eyebrow{margin:14px 0 8px;color:var(--accent);font-size:12px;font-weight:900;letter-spacing:.14em}.push-card h1{margin:0;font-size:clamp(28px,7vw,42px);line-height:1.25}.push-lead{margin:18px auto 0;max-width:560px;color:var(--muted);font-size:16px;line-height:1.9}.push-panel{margin:26px 0 0;padding:20px;text-align:left;border-radius:16px;background:#f7f8fa;border:1px solid var(--line)}.push-panel h2{margin:0 0 12px;font-size:19px}.push-panel ol{margin:0;padding-left:1.4em;line-height:1.9}.push-panel p{margin:12px 0 0;color:var(--muted);line-height:1.7}.push-register-area{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:28px}.push-register-button,.push-cancel-button{appearance:none;border:0;border-radius:999px;padding:15px 28px;font:inherit;font-weight:900;cursor:pointer}.push-register-button{background:var(--accent);color:#fff}.push-cancel-button{background:#e7ebef;color:#303842}.push-register-button:disabled,.push-cancel-button:disabled{opacity:.55}.push-status{min-height:1.7em;margin:20px 0 0;font-weight:800}.push-status.is-error{color:#bd2525}.push-note{margin:14px 0 0;color:#7c8490;font-size:13px;line-height:1.7}@media(max-width:540px){.push-shell{padding:14px 10px 40px}.push-card{border-radius:18px;padding:25px 18px}.push-register-button,.push-cancel-button{width:100%}}