样式修改

frontend-web/src/components/page-sdebar.css

@@ -41,7 +41,7 @@
 
 .item-nav {
     width: 100%;
-    height: 70px;
+    height: 75px;
     margin-top: 13px;
     font-family: Noto Sans S Chinese;
     font-weight: 500;
@@ -94,7 +94,7 @@
     content: '';
     position: absolute;
     left: 0;
-    top: 24px;
+    top: 29px;
     width: 77px;
     height: 45px;
     background: url('../assets/icon/nav-line-logo.svg') no-repeat;
@@ -237,4 +237,86 @@
 .sidebar-flyout-label {
     flex: 1;
     white-space: nowrap;
+}
+
+.sidebar-collapse-btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8px;
+    border-radius: 8px;
+    cursor: pointer;
+}
+
+.sidebar-collapse-btn__icon {
+    width: 16px;
+    height: 16px;
+    flex: 0 0 16px;
+    color: #80e9ff;
+}
+
+.sidebar-collapse-btn__label {
+    font-size: 14px;
+    line-height: 1;
+    white-space: nowrap;
+}
+
+.sidebar-collapse-btn--inline {
+    width: calc(100% - 6px);
+    min-height: 58px;
+    margin-top: auto;
+    margin-bottom: 2px;
+    flex-direction: column;
+    gap: 6px;
+    border: 1px solid #55a6fe33;
+    background: #000c1c26;
+    color: rgba(255, 255, 255, 0.9);
+    box-shadow: inset 0 0 16px #00b9ff1f;
+    transition: background-color 0.2s ease, border-color 0.2s ease;
+}
+
+.sidebar-collapse-btn--inline .sidebar-collapse-btn__label {
+    font-size: 16px;
+    line-height: 1.1;
+}
+
+.sidebar-collapse-btn--inline:hover {
+    background: rgba(0, 98, 217, 0.3);
+    border-color: rgba(255, 255, 255, 0.25);
+}
+
+.sidebar-collapse-btn--floating {
+    position: fixed;
+    left: 10px;
+    bottom: 10px;
+    z-index: 60;
+    width: 36px;
+    height: 36px;
+    min-height: 36px;
+    padding: 0 10px;
+    border: 1px solid rgba(128, 233, 255, 0.35);
+    background: rgba(3, 38, 80, 0.82);
+    color: rgba(205, 245, 255, 0.95);
+    backdrop-filter: blur(2px);
+    transition: width 0.22s ease, opacity 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
+    overflow: hidden;
+}
+
+.sidebar-collapse-btn--floating:hover {
+    width: 104px;
+    background: rgba(7, 52, 110, 0.9);
+    border-color: rgba(128, 233, 255, 0.65);
+}
+
+.sidebar-collapse-btn--floating .sidebar-collapse-btn__label {
+    max-width: 0;
+    opacity: 0;
+    transform: translateX(-4px);
+    transition: max-width 0.22s ease, opacity 0.16s ease, transform 0.22s ease;
+}
+
+.sidebar-collapse-btn--floating:hover .sidebar-collapse-btn__label {
+    max-width: 64px;
+    opacity: 1;
+    transform: translateX(0);
 }

frontend-web/src/components/page-sidebar-dark.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useMemo, useRef, useState } from "react";
 import { useNavigate, useLocation } from "react-router-dom";
+import { PanelLeftOpen, PanelLeftClose } from "lucide-react";
 
 import { getStoredAuth } from "@/core/auth";
 import {
@@ -10,7 +11,13 @@ import {
 } from "@/core/page-layout/sidebar-menu";
 import './page-sdebar.css'
 
-export function PageSidebarDark() {
+type PageSidebarDarkProps = {
+  /** 是否收起（true 时只渲染左下角浮动入口，sidebar 主体隐藏） */
+  collapsed: boolean;
+  onToggleCollapsed: () => void;
+};
+
+export function PageSidebarDark({ collapsed, onToggleCollapsed }: PageSidebarDarkProps) {
   const isAdmin = getStoredAuth()?.system_role === "admin";
   const visibleMenuItems = useMemo(
     () => filterMenuItemsByRole(sidebarMenuItems, !!isAdmin),
@@ -91,10 +98,37 @@ export function PageSidebarDark() {
     });
   };
 
+  const findFirstRoutePath = (items?: MenuItem[]): string | null => {
+    if (!items?.length) {
+      return null;
+    }
+
+    for (const child of items) {
+      if (child.path) {
+        return child.path;
+      }
+      const nestedPath = findFirstRoutePath(child.children);
+      if (nestedPath) {
+        return nestedPath;
+      }
+    }
+
+    return null;
+  };
+
   const handleTopItemClick = (item: MenuItem) => {
     setActiveTopId(item.id);
 
-    if (!item.children?.length && item.path) {
+    if (item.children?.length) {
+      const firstPath = findFirstRoutePath(item.children);
+      if (firstPath) {
+        closeNavPanel();
+        navigate(firstPath);
+      }
+      return;
+    }
+
+    if (item.path) {
       closeNavPanel();
       navigate(item.path);
     }
@@ -138,6 +172,22 @@ export function PageSidebarDark() {
       })}
     </div>
   );
+  // collapsed 状态：sidebar 主体完全消失（包括占据的宽度），只渲染左下角浮动入口
+  if (collapsed) {
+    return (
+      <button
+        type="button"
+        title="展开侧边栏"
+        aria-label="展开侧边栏"
+        className="sidebar-collapse-btn sidebar-collapse-btn--floating"
+        onClick={onToggleCollapsed}
+      >
+        <PanelLeftOpen className="sidebar-collapse-btn__icon" aria-hidden="true" />
+        <span className="sidebar-collapse-btn__label">收起面板</span>
+      </button>
+    );
+  }
+
   return (
     <aside className="sidebar-contnet">
       <div className="sidebar-contents">
@@ -169,6 +219,18 @@ export function PageSidebarDark() {
             </div>
           </div>
         ))}
+
+        {/* 底部"收起面板"按钮：独立样式，mt-auto 推到底 */}
+        <button
+          type="button"
+          title="收起侧边栏"
+          aria-label="收起侧边栏"
+          className="sidebar-collapse-btn sidebar-collapse-btn--inline"
+          onClick={onToggleCollapsed}
+        >
+          <PanelLeftClose className="sidebar-collapse-btn__icon" aria-hidden="true" />
+          <span className="sidebar-collapse-btn__label">收起面板</span>
+        </button>
       </div>
     </aside>
   );