:root{--bg:#0b1020;--panel:#141a2e;--text:#e8ecf5;--muted:#9aa6c0;--brand:#4f8cff;--brand-2:#16d6a4;--danger:#ff5d6c}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6}a{color:var(--brand)}.card{background:var(--panel);border:1px solid #ffffff0f;border-radius:14px;padding:16px 18px}.btn{background:var(--brand);color:#fff;cursor:pointer;border:0;border-radius:10px;align-items:center;gap:6px;padding:10px 16px;font-size:14px;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.input,.textarea{width:100%;color:var(--text);background:#0e1426;border:1px solid #ffffff1a;border-radius:10px;padding:10px 12px;font-size:14px}.muted{color:var(--muted)}