:root{--primary: #1f6feb;--primary-dark: #1158c7;--bg: #f5f6f8;--panel: #ffffff;--border: #e3e6ea;--text: #1f2328;--text-dim: #656d76;--ok: #1a7f37;--warn: #9a6700;--err: #cf222e;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:PingFang SC,Microsoft YaHei,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}button{font-family:inherit;cursor:pointer}input,select{font-family:inherit;font-size:14px}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{height:56px;background:var(--panel);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;gap:16px;position:sticky;top:0;z-index:50}.topbar .logo{font-weight:700;font-size:16px;color:var(--primary)}.topbar .spacer{flex:1}.topbar .user{color:var(--text-dim);font-size:13px}.topbar .tag{background:#ddf4ff;color:#0969da;padding:1px 8px;border-radius:20px;font-size:12px;margin-left:6px}.topbar .tag.admin{background:#fff1e5;color:#bc4c00}.container{flex:1;max-width:1280px;width:100%;margin:0 auto;padding:20px}.nav{display:flex;gap:4px}.nav button{border:none;background:transparent;padding:6px 14px;border-radius:8px;color:var(--text-dim);font-size:14px}.nav button:hover{background:#eef1f4}.nav button.active{background:var(--primary);color:#fff;font-weight:600}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:16px}.card h3{margin:0 0 4px;font-size:15px}.card .hint{color:var(--text-dim);font-size:12px;margin-bottom:14px}.field{margin-bottom:14px}.field label{display:block;font-weight:600;margin-bottom:6px;font-size:13px}.field .req{color:var(--err);margin-left:3px}.input{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;outline:none;background:#fff}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #1f6feb1f}.btn{padding:9px 18px;border:1px solid var(--border);background:#fff;border-radius:8px;color:var(--text)}.btn:hover{background:#f3f5f7}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}.btn.primary:hover{background:var(--primary-dark)}.btn.primary:disabled{opacity:.5;cursor:not-allowed}.btn.danger{color:var(--err);border-color:#ffc1c1}.btn.small{padding:5px 11px;font-size:12px}.opt-toolbar{display:flex;gap:8px;align-items:center;margin-bottom:10px}.opt-toolbar .input{flex:1}.opt-count{color:var(--text-dim);font-size:12px;white-space:nowrap}.opt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px}.opt-grid.multi{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}.opt{display:flex;align-items:center;gap:8px;padding:9px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;text-align:left;transition:all .12s;min-height:40px}.opt:hover{border-color:var(--primary);background:#f6f9ff}.opt.sel{border-color:var(--primary);background:#e8f1ff;box-shadow:inset 0 0 0 1px var(--primary)}.opt .code{font-family:Consolas,Monaco,monospace;font-weight:700;color:var(--primary);background:#eef4ff;border-radius:5px;padding:1px 6px;font-size:12px;min-width:20px;text-align:center;flex-shrink:0}.opt.sel .code{background:var(--primary);color:#fff}.opt .nm{flex:1;font-size:13px}.opt .chk{color:var(--primary);font-weight:700;flex-shrink:0}.empty-tip{color:var(--text-dim);font-size:13px;padding:16px;text-align:center;background:#fafbfc;border:1px dashed var(--border);border-radius:8px}.path{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:14px}.path .seg{background:#eef4ff;color:var(--primary);border-radius:6px;padding:3px 10px;font-size:12px;font-weight:600}.path .arrow{color:var(--text-dim);font-size:12px}.result{background:linear-gradient(135deg,#0d2a5c,#1f6feb);color:#fff;border-radius:var(--radius);padding:22px}.result .lbl{font-size:12px;opacity:.8;margin-bottom:8px}.result .code-big{font-family:Consolas,Monaco,monospace;font-size:34px;font-weight:700;letter-spacing:4px;word-break:break-all;line-height:1.2;-webkit-user-select:none;-moz-user-select:none;user-select:none;cursor:default}.result.saved .code-big{-webkit-user-select:text;user-select:text}.result .unsave-tip{display:flex;align-items:center;gap:6px;margin-top:10px;padding:8px 12px;background:#ffd6662e;border:1px solid rgba(255,214,102,.45);border-radius:8px;font-size:12.5px;color:#ffe9a8}.result .copied-tip{margin-top:10px;font-size:12.5px;color:#9fe6b8}.result .actions{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;align-items:center}.result .actions .btn{background:#ffffff24;border-color:#ffffff4d;color:#fff}.result .actions .btn:hover{background:#ffffff3d}.result .actions .btn.gated{background:#ffffff0f;border-color:#ffffff2e;color:#ffffff73}.result .actions .btn.gated:hover{background:#ffffff1f}.result .actions .spacer{flex:1 1 auto}.need-save-hint{margin-top:10px;padding:9px 13px;border-radius:8px;font-size:12.5px;background:#fff8c5;border:1px solid #f5e18a;color:#7d4e00}.block-tip{margin-top:10px;padding:9px 13px;border-radius:8px;font-size:12.5px;background:#fff4e5;border:1px solid #ffd8a8;color:#8a4b00}.block-tip b{color:#a8440a}.seg-table{width:100%;border-collapse:collapse;margin-top:14px;font-size:13px}.seg-table td{padding:6px 10px;border-bottom:1px solid var(--border)}.seg-table td:first-child{color:var(--text-dim);width:130px}.seg-table .mono{font-family:Consolas,monospace;font-weight:700;color:var(--primary)}.tbl{width:100%;border-collapse:collapse;font-size:13px}.tbl th{background:#f6f8fa;text-align:left;padding:9px 12px;border-bottom:1px solid var(--border);font-weight:600;white-space:nowrap}.tbl td{padding:9px 12px;border-bottom:1px solid var(--border)}.tbl tr:hover td{background:#fafbfc}.tbl .mono{font-family:Consolas,monospace;font-weight:700;color:var(--primary)}.msg{padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:13px}.msg.err{background:#ffebe9;color:#a40e26;border:1px solid #ffc1c1}.msg.ok{background:#dafbe1;color:#0f5323;border:1px solid #aceebb}.msg.warn{background:#fff8c5;color:#7d4e00;border:1px solid #f5e18a}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.row.end{justify-content:flex-end}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-box{width:100%;max-width:380px}.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:14px}.pager span{color:var(--text-dim);font-size:13px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.modal{background:#fff;border-radius:12px;padding:22px;width:100%;max-width:460px}.badge{background:#eef1f4;border-radius:20px;padding:1px 9px;font-size:12px;color:var(--text-dim)}.mono{font-family:Consolas,Monaco,monospace}.footer{max-width:1280px;width:100%;margin:0 auto;padding:14px 20px 24px;color:var(--text-dim);font-size:12px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}.footer .dot{opacity:.5}