:root{--bg: #0b111d;--panel: rgba(17, 26, 44, .92);--panel-solid: #111a2c;--panel-2: #0e1626;--line: #1f2b45;--text: #e8eefb;--muted: #8fa3c8;--accent: #4cc9f0;--accent-2: #ffc857;--danger: #ff5566;--ok: #3ddc84;--radius: 12px;--shadow: 0 8px 28px rgba(0, 0, 0, .45);font-size:14px}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:Inter,HarmonyOS Sans SC,PingFang SC,Microsoft YaHei,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:#243252;border-radius:4px}::-webkit-scrollbar-track{background:transparent}button{font-family:inherit}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:9px;border:1px solid var(--line);background:var(--panel-solid);color:var(--text);cursor:pointer;transition:transform .16s cubic-bezier(.34,1.56,.64,1),background .15s,border-color .15s;-webkit-user-select:none;user-select:none;font-size:13px}.btn:hover{background:#17233c;border-color:#2c3d63;transform:translateY(-1px)}.btn:active{transform:translateY(0) scale(.97)}.btn.primary{background:linear-gradient(135deg,#2f7fd4,#4cc9f0);border-color:transparent;color:#06121f;font-weight:600}.btn.primary:hover{filter:brightness(1.08)}.btn.ghost{background:transparent}.btn.danger{color:var(--danger);border-color:#ff556659}.btn.danger:hover{background:#ff55661f}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn.active{border-color:var(--accent);color:var(--accent);background:#4cc9f01a}.input{background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:8px;padding:7px 10px;font-size:13px;outline:none;width:100%;transition:border-color .15s}.input:focus{border-color:var(--accent)}.engine-toast{position:fixed;left:50%;bottom:64px;transform:translate(-50%) translateY(16px);background:#0d1422eb;border:1px solid var(--line);color:var(--text);padding:9px 18px;border-radius:10px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .22s,transform .28s cubic-bezier(.34,1.56,.64,1);z-index:99;box-shadow:var(--shadow)}.engine-toast.show{opacity:1;transform:translate(-50%) translateY(0)}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0408109e;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--panel-solid);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:22px;width:min(520px,92vw);animation:pop-in .24s cubic-bezier(.34,1.56,.64,1)}@keyframes pop-in{0%{transform:scale(.92) translateY(10px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.modal h3{margin:0 0 16px;font-size:16px}.modal .row{display:flex;gap:10px;margin-bottom:12px}.modal .foot{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.field label{font-size:12px;color:var(--muted)}