左侧折叠

static/style.css

@@ -78,8 +78,95 @@ a:hover {
   background: var(--panel);
   border-right: 1px solid var(--border);
   overflow-y: auto;
-  padding: 0.75rem 0;
+  padding: 0 0 0.75rem;
   flex-shrink: 0;
+  transition:
+    width 0.22s ease,
+    min-width 0.22s ease,
+    max-width 0.22s ease,
+    opacity 0.18s ease,
+    padding 0.22s ease,
+    border-color 0.22s ease;
+}
+
+.layout-main.sidebar-collapsed .sidebar {
+  width: 0;
+  min-width: 0;
+  max-width: 0;
+  padding: 0;
+  overflow: hidden;
+  opacity: 0;
+  pointer-events: none;
+  border-right-color: transparent;
+}
+
+.sidebar-toolbar {
+  display: flex;
+  justify-content: flex-end;
+  align-items: center;
+  padding: 0.45rem 0.5rem 0.35rem;
+  border-bottom: 1px solid var(--border);
+  flex-shrink: 0;
+}
+
+.btn-sidebar-toggle {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 2rem;
+  height: 2rem;
+  padding: 0;
+  border-radius: 6px;
+  border: 1px solid var(--border);
+  background: rgba(255, 255, 255, 0.04);
+  color: var(--muted);
+  font: inherit;
+  font-size: 1rem;
+  line-height: 1;
+  cursor: pointer;
+  transition:
+    color 0.15s ease,
+    border-color 0.15s ease,
+    background 0.15s ease;
+}
+
+.btn-sidebar-toggle:hover {
+  color: var(--text);
+  border-color: var(--muted);
+  background: rgba(61, 139, 253, 0.1);
+}
+
+.btn-sidebar-expand {
+  flex-shrink: 0;
+  align-self: stretch;
+  width: 2rem;
+  min-height: 0;
+  margin: 0;
+  padding: 0;
+  border: none;
+  border-right: 1px solid var(--border);
+  background: var(--panel);
+  color: var(--muted);
+  font: inherit;
+  font-size: 1.05rem;
+  line-height: 1;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition:
+    color 0.15s ease,
+    background 0.15s ease,
+    border-color 0.15s ease;
+}
+
+.btn-sidebar-expand:hover {
+  color: var(--text);
+  background: rgba(61, 139, 253, 0.08);
+}
+
+.btn-sidebar-expand[hidden] {
+  display: none;
 }
 
 .sidebar-section {