:root{color-scheme:dark;--bg:#10151c;--card:#19212c;--line:#303d4d;--text:#edf3f9;--muted:#a9b8c9;--accent:#8bcbb4;--error:#ffb5ad}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 15% 0%,#213241 0%,transparent 52%),var(--bg);color:var(--text);font-family:"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.65}main{max-width:880px;margin:auto;padding:32px 24px 48px}header{display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{color:var(--text);font-weight:800;letter-spacing:2px;text-decoration:none;font-size:24px}.brand span{font-size:13px;font-weight:400;letter-spacing:1px;color:var(--muted);margin-left:12px}.tag{font-size:12px;border:1px solid var(--line);border-radius:30px;padding:5px 12px;color:var(--muted)}.intro{margin:60px 0 30px}.eyebrow{letter-spacing:3px;color:var(--accent);font-size:11px;font-weight:700}h1{font-size:36px;line-height:1.3;letter-spacing:-1px;margin:12px 0 16px}.intro>p:last-child{color:var(--muted)}.card{padding:26px 30px;background:var(--card);border:1px solid var(--line);border-radius:14px;margin-top:18px}.section-title{display:flex;gap:12px;align-items:center}.number{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:1px}h2{font-size:19px;font-weight:600;margin:0}.card p{color:var(--muted)}button,.button{border:1px solid transparent;background:var(--accent);color:#11241e;padding:11px 18px;border-radius:8px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:22px;transition:background .15s}.button:hover,button:hover{filter:brightness(1.08)}button:disabled{opacity:.42;cursor:not-allowed}.secondary{background:transparent;color:var(--text);border-color:#506278}.danger{background:transparent;color:var(--error);border-color:#704b4b}.account{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:18px}.label{display:block;color:var(--muted);font-size:12px}strong#steam-id{display:block;letter-spacing:1px;font-size:19px;font-family:monospace}.muted{font-size:12px;color:var(--muted)}label{font-size:13px;display:block;margin:18px 0 8px}.input-row{display:flex;gap:10px}input{flex:1;min-width:0;border:1px solid #506278;border-radius:8px;background:#111922;padding:12px;color:var(--text);font-family:monospace;font-size:14px}input:focus,button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.permission{border-left:2px solid var(--accent);padding:6px 16px;margin:22px 0;background:#14252a}.permission strong{font-size:13px}.permission p{font-size:13px;margin:6px 0}.code-result{margin-top:24px;border:1px solid #42695b;padding:20px;border-radius:10px;background:#142722}#play-code{display:block;font-family:monospace;font-size:27px;letter-spacing:2px;color:#b1efd5;margin:12px 0;overflow-wrap:anywhere}.code-actions{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:12px}.actions{display:flex;gap:12px;flex-wrap:wrap}#grant-details{overflow-wrap:anywhere}.notice{padding:14px 18px;background:#25362f;border:1px solid #446856;border-radius:9px;color:#c9ecdb}.notice.error{background:#342422;color:#ffd6d1;border-color:#795650}footer{color:var(--muted);text-align:center;font-size:12px;margin-top:30px}[hidden]{display:none!important}@media(max-width:600px){main{padding:22px 16px}.intro{margin-top:42px}h1{font-size:28px}.card{padding:22px 18px}.tag{display:none}.input-row{flex-direction:column}.account{align-items:flex-start;flex-direction:column}.code-actions{align-items:flex-start;flex-direction:column}#play-code{font-size:22px;letter-spacing:1px}.actions button{width:100%}}