:root{color:#1b1f27;background:#dfe7f3;font-family:Microsoft YaHei,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.app-shell{--bg: #edf3fb;--panel: #ffffff;--panel-soft: #f6f8fc;--border: #c8d2e2;--text: #1b1f27;--muted: #667085;--accent: #2563eb;--accent-soft: #dbeafe;--shadow: 0 18px 50px rgb(39 50 70 / 18%);display:flex;min-height:100vh;flex-direction:column;padding:22px;color:var(--text);background:linear-gradient(135deg,#eef5ff,#dce8f7 45%,#e8ecf2)}.app-shell.dark{--bg: #111827;--panel: #1d2533;--panel-soft: #151d2a;--border: #334155;--text: #ecf2ff;--muted: #aab5c6;--accent: #60a5fa;--accent-soft: #1e3a5f;--shadow: 0 18px 50px rgb(0 0 0 / 35%);background:linear-gradient(135deg,#101827,#162235 48%,#202a37)}.title-bar{display:grid;max-width:1220px;width:100%;grid-template-columns:120px 1fr auto;align-items:center;gap:16px;margin:0 auto 12px;padding:10px 14px;border:1px solid var(--border);border-radius:8px 8px 0 0;background:color-mix(in srgb,var(--panel) 88%,transparent);box-shadow:var(--shadow)}.window-controls{display:flex;gap:8px}.control{width:12px;height:12px;border-radius:999px;border:1px solid rgb(0 0 0 / 12%)}.minimize{background:#f6c343}.maximize{background:#3fc66b}.close{background:#f56767}.brand{display:flex;min-width:0;justify-content:center;align-items:center;gap:8px;font-weight:650}.brand-icon{color:var(--accent)}.theme-toggle,.visit-button,.nav-buttons button{border:1px solid var(--border);border-radius:6px;color:var(--text);background:var(--panel-soft)}.theme-toggle{min-width:88px;padding:7px 12px}.explorer-window{display:flex;overflow:hidden;max-width:1220px;width:100%;min-height:min(760px,calc(100vh - 96px));flex:1;flex-direction:column;margin:0 auto;border:1px solid var(--border);border-radius:0 0 8px 8px;background:var(--panel);box-shadow:var(--shadow)}.command-row{display:grid;grid-template-columns:auto minmax(180px,420px);gap:12px;align-items:center;padding:10px;border-bottom:1px solid var(--border);background:var(--panel-soft)}.nav-buttons{display:flex;gap:6px}.nav-buttons button{width:34px;height:30px}.search-bar{display:flex;min-width:0;align-items:center;gap:8px;padding:0 11px;border:1px solid var(--border);border-radius:6px;background:var(--panel)}.search-icon{color:var(--muted)}.search-bar input{width:100%;min-width:0;height:34px;border:0;outline:0;color:var(--text);background:transparent}.explorer-body{display:grid;min-height:0;flex:1;grid-template-columns:280px 1fr}.sidebar{overflow:auto;border-right:1px solid var(--border);background:var(--panel-soft)}.sidebar-header{padding:16px 16px 8px;color:var(--muted);font-size:13px}.tree{padding:4px 8px 18px}.tree-folder{margin-bottom:2px}.tree-folder-button,.tree-file-button{display:flex;width:100%;min-height:34px;align-items:center;gap:7px;border:0;border-radius:6px;color:var(--text);background:transparent;text-align:left}.tree-folder-button{padding:6px 8px}.tree-folder-button:hover,.tree-file-button:hover,.tree-folder-button.active{background:var(--accent-soft)}.chevron{display:inline-flex;width:14px;justify-content:center;color:var(--muted);transition:transform .16s ease}.chevron.expanded{transform:rotate(90deg)}.folder-icon{width:22px}.folder-name,.file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-children{margin:2px 0 6px 23px}.tree-file-button{padding:5px 8px;color:var(--muted);font-size:14px}.connector{color:var(--muted);font-family:Consolas,monospace}.content{overflow:auto;padding:18px;background:var(--panel)}.content-toolbar{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.path-label{margin:0 0 5px;color:var(--muted);font-size:13px}h1{margin:0;font-size:24px;font-weight:700;letter-spacing:0}.resource-count{flex:0 0 auto;padding:5px 9px;border:1px solid var(--border);border-radius:6px;color:var(--muted);background:var(--panel-soft);font-size:13px}.resource-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.resource-card{display:grid;min-height:132px;grid-template-columns:42px 1fr;gap:12px;align-items:start;padding:15px;border:1px solid var(--border);border-radius:8px;background:var(--panel-soft)}.resource-file-icon{display:grid;width:42px;height:42px;place-items:center;border:1px solid var(--border);border-radius:6px;color:var(--accent);background:var(--panel);font-size:22px}.resource-info{min-width:0}.resource-info h2{margin:0 0 7px;font-size:17px;letter-spacing:0}.resource-info p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}.visit-button{grid-column:2;justify-self:start;padding:7px 14px;color:#fff;background:var(--accent)}.empty-state{display:grid;min-height:300px;place-items:center;align-content:center;text-align:center;color:var(--muted)}.empty-icon{font-size:34px}.empty-state h2{margin:12px 0 6px;color:var(--text);font-size:20px}.empty-state p{margin:0}@media(max-width:760px){.app-shell{padding:10px}.title-bar{grid-template-columns:76px 1fr auto;gap:8px;padding:9px}.brand{justify-content:flex-start;font-size:14px}.theme-toggle{min-width:76px;padding:7px 8px;font-size:13px}.command-row{grid-template-columns:1fr}.nav-buttons{display:none}.explorer-body{grid-template-columns:1fr}.sidebar{max-height:240px;border-right:0;border-bottom:1px solid var(--border)}.content{padding:14px}.content-toolbar{align-items:flex-start;flex-direction:column;gap:10px}.resource-grid{grid-template-columns:1fr}}