/* FENG knowledge relations / graph / file explorer */
#feng-knowledge-app{--kg-line:rgba(89,201,238,.22);--kg-bg:rgba(8,20,34,.72);--kg-card:rgba(18,37,55,.78);min-height:560px;color:var(--text-p1);font-family:Inter,"Microsoft YaHei",sans-serif}#feng-knowledge-app *{box-sizing:border-box}.fkg-loading,.fkg-empty{display:grid;place-items:center;min-height:420px;color:var(--text-p3)}.fkg-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.fkg-tabs button{padding:9px 13px;border:1px solid var(--kg-line)!important;border-radius:10px!important;color:var(--text-p2)!important;background:var(--kg-bg)!important;cursor:pointer}.fkg-tabs button.active{color:#07151f!important;background:#6cddff!important}.fkg-panel{min-height:520px;overflow:hidden;border:1px solid var(--kg-line);border-radius:16px;background:var(--kg-bg)}.fkg-graph{position:relative;height:560px;overflow:hidden}.fkg-graph canvas{width:100%;height:100%;cursor:grab}.fkg-graph canvas:active{cursor:grabbing}.fkg-hint{position:absolute;left:12px;bottom:10px;padding:6px 9px;border-radius:8px;color:#8ea7b8;background:rgba(4,12,22,.78);font-size:11px;pointer-events:none}.fkg-tip{position:absolute;display:none;max-width:250px;padding:8px 10px;border:1px solid var(--kg-line);border-radius:8px;color:#e8f8ff;background:#071522;font-size:11px;pointer-events:none}.fkg-files{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:520px}.fkg-tree{padding:12px;border-right:1px solid var(--kg-line)}.fkg-tree button{display:flex;width:100%;padding:9px;border:0!important;border-radius:8px!important;color:var(--text-p2)!important;background:transparent!important;text-align:left;cursor:pointer}.fkg-tree button:hover,.fkg-tree button.active{color:var(--text-p1)!important;background:rgba(73,196,235,.1)!important}.fkg-list{padding:15px}.fkg-list header{display:flex;justify-content:space-between;padding:5px 4px 14px;color:var(--text-p3);font-size:12px}.fkg-file{display:flex;align-items:center;gap:10px;padding:11px 9px;border-top:1px solid var(--kg-line);color:var(--text-p2)!important;text-decoration:none!important}.fkg-file:hover{background:rgba(73,196,235,.07)}.fkg-file i{color:#60d7ff;font-style:normal}.fkg-file span{min-width:0;flex:1}.fkg-file small{color:var(--text-p3)}@media(max-width:650px){.fkg-files{grid-template-columns:1fr}.fkg-tree{display:flex;overflow:auto;border-right:0;border-bottom:1px solid var(--kg-line)}.fkg-tree button{white-space:nowrap;width:auto}.fkg-graph{height:470px}}

.fkg-empty{text-align:center;padding:28px}.fkg-empty b{display:block;color:var(--text-p1);font-size:16px}.fkg-empty p{margin:9px 0;color:var(--text-p3)}.fkg-empty small{color:var(--text-p3)}.fkg-legend{position:absolute;top:12px;right:12px;display:flex;flex-wrap:wrap;gap:10px;padding:7px 9px;border:1px solid var(--kg-line);border-radius:9px;background:rgba(4,12,22,.78);color:#9db5c5;font-size:11px;pointer-events:none}.fkg-legend span{display:flex;align-items:center;gap:5px}.fkg-legend i{width:8px;height:8px;border-radius:50%;background:var(--c);box-shadow:0 0 8px var(--c)}.fkg-tip b,.fkg-tip small{display:block}.fkg-tip small{margin-top:3px;color:#8ea7b8}


/* v1.1 hierarchical file manager */
.fkg-tree{max-height:520px;overflow:auto}.fkg-tree button{align-items:center;gap:7px;padding-left:calc(9px + var(--depth,0)*14px)}.fkg-tree button>i{width:12px;color:#60d7ff;font-style:normal}.fkg-tree button>span{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.fkg-tree button>small{color:var(--text-p3);font-size:10px}.fkg-file.fkg-folder{width:100%;border-right:0!important;border-bottom:0!important;background:transparent!important;text-align:left;cursor:pointer}.fkg-file>span b,.fkg-file>span em{display:block}.fkg-file>span em{margin-top:3px;color:var(--text-p3);font:10px/1.2 ui-monospace,monospace;font-style:normal}.fkg-list>.fkg-empty{min-height:260px}