:root{--ink:#111;--muted:#6b7280;--line:#e5e7eb;--bg:#f7f7f8;--err:#b91c1c}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font:15px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.page{max-width:480px;margin:0 auto;padding:48px 20px}h1{margin:0 0 8px;font-size:20px}.muted{color:var(--muted);font-size:14px}.notice-text{color:var(--err);margin-top:12px;font-size:14px}.slots{flex-direction:column;gap:10px;margin-top:20px;display:flex}.slot-btn{text-align:left;border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:10px;padding:14px 16px;font-size:15px}.slot-btn:hover{border-color:#cbd5e1}.notice{text-align:center;padding:48px 12px}.error{color:var(--err);font-weight:600}