diff --git a/qiming/src/constants/theme.constants.ts b/qiming/src/constants/theme.constants.ts
index 5e1abc77..147884af 100644
--- a/qiming/src/constants/theme.constants.ts
+++ b/qiming/src/constants/theme.constants.ts
@@ -20,6 +20,10 @@ import { FIRST_MENU_WIDTH_STYLE2 } from './layout.constants';
  * 定义可选择的主题色选项
  */
 export const THEME_COLOR_CONFIGS = [
+  {
+    color: '#006569',
+    name: '国网绿',
+  },
   {
     color: '#5147ff',
     name: dict('PC.Constants.Theme.colorBlue'),
diff --git a/qiming/src/pages/OpenApp/BaseTemplate/ConversationItem/index.less b/qiming/src/pages/OpenApp/BaseTemplate/ConversationItem/index.less
index 3e53b0b7..7b60d32d 100644
--- a/qiming/src/pages/OpenApp/BaseTemplate/ConversationItem/index.less
+++ b/qiming/src/pages/OpenApp/BaseTemplate/ConversationItem/index.less
@@ -5,38 +5,37 @@
   padding: @paddingXs;
   margin-top: @marginXxs;
   cursor: pointer;
-  color: @navSecondMenuTextSecondary;
+  color: var(--open-app-sidebar-text-secondary, @navSecondMenuTextSecondary);
+  border-radius: @borderRadius;
+  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
 
   &.first {
     margin-top: 0;
   }
 
   .name {
-    color: @navSecondMenuTextSecondary;
+    color: var(--open-app-sidebar-text-secondary, @navSecondMenuTextSecondary);
     font-weight: 400;
     font-size: @fontSize;
   }
 
   &.active {
-    background-color: rgba(0, 0, 0, 5%);
-    color: rgba(0, 0, 0, 90%);
-    border-radius: @borderRadius;
-    box-shadow: @boxShadowTertiary;
+    background-color: var(--open-app-sidebar-active-bg, rgba(0, 0, 0, 5%));
+    color: var(--open-app-sidebar-active-text, rgba(0, 0, 0, 90%));
+    box-shadow: var(--open-app-sidebar-control-shadow, @boxShadowTertiary);
 
     .name {
-      color: rgba(0, 0, 0, 90%);
+      color: var(--open-app-sidebar-active-text, rgba(0, 0, 0, 90%));
     }
   }
 
   &:hover:not(.active) {
-    background-color: rgba(0, 0, 0, 5%);
-    border-radius: @borderRadius;
-    box-shadow: @boxShadowTertiary;
-    color: @colorTextSecondary;
+    background-color: var(--open-app-sidebar-hover, rgba(0, 0, 0, 5%));
+    color: var(--open-app-sidebar-text, @colorTextSecondary);
   }
 
   .status-text {
     font-size: @fontSizeSm;
-    color: @colorTextTertiary;
+    color: var(--open-app-sidebar-muted, @colorTextTertiary);
   }
 }
diff --git a/qiming/src/pages/OpenApp/BaseTemplate/index.less b/qiming/src/pages/OpenApp/BaseTemplate/index.less
index b7540c1c..6e8527a1 100644
--- a/qiming/src/pages/OpenApp/BaseTemplate/index.less
+++ b/qiming/src/pages/OpenApp/BaseTemplate/index.less
@@ -3,6 +3,83 @@
 .container {
   display: flex;
   height: 100%;
+  --open-app-sidebar-bg: #ffffff;
+  --open-app-sidebar-border: rgba(0, 101, 105, 12%);
+  --open-app-sidebar-text: #183638;
+  --open-app-sidebar-text-secondary: rgba(24, 54, 56, 68%);
+  --open-app-sidebar-muted: rgba(24, 54, 56, 52%);
+  --open-app-sidebar-hover: rgba(0, 101, 105, 8%);
+  --open-app-sidebar-active-bg: rgba(0, 101, 105, 12%);
+  --open-app-sidebar-active-text: #006569;
+  --open-app-sidebar-accent: #006569;
+  --open-app-sidebar-accent-2: #00a67a;
+  --open-app-sidebar-control-bg: #ffffff;
+  --open-app-sidebar-control-border: rgba(0, 101, 105, 20%);
+  --open-app-sidebar-control-shadow: 0 8px 24px rgba(0, 101, 105, 10%);
+  --open-app-sidebar-footer-bg: rgba(0, 101, 105, 6%);
+  --open-app-sidebar-gradient-end: #ffffff;
+  --open-app-theme-switch-bg: rgba(0, 101, 105, 8%);
+  --open-app-theme-switch-active-bg: #006569;
+  --open-app-theme-switch-active-text: #ffffff;
+}
+
+.theme-light {
+  --open-app-sidebar-bg: #fbfffd;
+  --open-app-sidebar-border: rgba(0, 101, 105, 16%);
+  --open-app-sidebar-text: #183638;
+  --open-app-sidebar-text-secondary: rgba(24, 54, 56, 68%);
+  --open-app-sidebar-muted: rgba(24, 54, 56, 52%);
+  --open-app-sidebar-hover: rgba(0, 101, 105, 8%);
+  --open-app-sidebar-active-bg: rgba(0, 101, 105, 12%);
+  --open-app-sidebar-active-text: #006569;
+  --open-app-sidebar-control-bg: #ffffff;
+  --open-app-sidebar-control-border: rgba(0, 101, 105, 22%);
+  --open-app-sidebar-control-shadow: 0 10px 26px rgba(0, 101, 105, 9%);
+  --open-app-sidebar-footer-bg: rgba(0, 101, 105, 6%);
+  --open-app-sidebar-gradient-end: #fbfffd;
+  --open-app-theme-switch-bg: rgba(0, 101, 105, 8%);
+  --open-app-theme-switch-active-bg: #006569;
+  --open-app-theme-switch-active-text: #ffffff;
+}
+
+.theme-dispatch {
+  --open-app-sidebar-bg: #003f42;
+  --open-app-sidebar-border: rgba(128, 236, 208, 26%);
+  --open-app-sidebar-text: #f2fffc;
+  --open-app-sidebar-text-secondary: rgba(242, 255, 252, 76%);
+  --open-app-sidebar-muted: rgba(242, 255, 252, 56%);
+  --open-app-sidebar-hover: rgba(255, 255, 255, 10%);
+  --open-app-sidebar-active-bg: rgba(0, 166, 122, 22%);
+  --open-app-sidebar-active-text: #ffffff;
+  --open-app-sidebar-accent: #00a67a;
+  --open-app-sidebar-accent-2: #7ee8c4;
+  --open-app-sidebar-control-bg: rgba(255, 255, 255, 10%);
+  --open-app-sidebar-control-border: rgba(126, 232, 196, 32%);
+  --open-app-sidebar-control-shadow: 0 18px 42px rgba(0, 22, 24, 32%);
+  --open-app-sidebar-footer-bg: rgba(0, 34, 36, 48%);
+  --open-app-sidebar-gradient-end: #003f42;
+  --open-app-theme-switch-bg: rgba(255, 255, 255, 10%);
+  --open-app-theme-switch-active-bg: #00a67a;
+  --open-app-theme-switch-active-text: #003f42;
+}
+
+.theme-portal {
+  --open-app-sidebar-bg: #f4fbf8;
+  --open-app-sidebar-border: rgba(0, 101, 105, 20%);
+  --open-app-sidebar-text: #113436;
+  --open-app-sidebar-text-secondary: rgba(17, 52, 54, 70%);
+  --open-app-sidebar-muted: rgba(17, 52, 54, 54%);
+  --open-app-sidebar-hover: rgba(0, 166, 122, 10%);
+  --open-app-sidebar-active-bg: #ffffff;
+  --open-app-sidebar-active-text: #006569;
+  --open-app-sidebar-control-bg: #ffffff;
+  --open-app-sidebar-control-border: rgba(0, 101, 105, 18%);
+  --open-app-sidebar-control-shadow: 0 12px 30px rgba(0, 101, 105, 12%);
+  --open-app-sidebar-footer-bg: #ffffff;
+  --open-app-sidebar-gradient-end: #f4fbf8;
+  --open-app-theme-switch-bg: #ffffff;
+  --open-app-theme-switch-active-bg: #006569;
+  --open-app-theme-switch-active-text: #ffffff;
 }
 
 // 应用智能体侧边栏容器
@@ -10,8 +87,9 @@
   width: 250px;
   height: 100%;
   padding: @paddingSm @paddingXs;
-  border-right: @colorBorderSecondary 1px solid;
-  background-color: @colorBgContainerDisabled;
+  border-right: 1px solid var(--open-app-sidebar-border);
+  background: var(--open-app-sidebar-bg);
+  color: var(--open-app-sidebar-text);
   display: flex;
   flex-direction: column;
   gap: @paddingSm;
@@ -43,7 +121,8 @@
     width: 26px;
     height: 26px;
     border-radius: @borderRadius;
-    background-color: @colorBgContainer;
+    background-color: var(--open-app-sidebar-control-bg);
+    border: 1px solid var(--open-app-sidebar-control-border);
     overflow: hidden;
     flex-shrink: 0;
 
@@ -59,6 +138,7 @@
     height: 16px;
     margin-left: auto;
     border-radius: 50%;
+    color: var(--open-app-sidebar-text-secondary);
   }
 }
 
@@ -66,9 +146,9 @@
 .newSessionBtn {
   width: 100%;
   height: @controlHeightLg;
-  border: @lineWidth solid @colorBorder;
+  border: @lineWidth solid var(--open-app-sidebar-control-border);
   border-radius: @borderRadiusLg;
-  background-color: @colorBgContainer;
+  background: var(--open-app-sidebar-control-bg);
   padding: 0 @paddingSm;
   display: flex;
   align-items: center;
@@ -77,14 +157,15 @@
   transition: box-shadow 0.2s ease-in-out, background-color 0.2s ease-in-out;
 
   &:hover {
-    box-shadow: @boxShadowSecondary;
+    box-shadow: var(--open-app-sidebar-control-shadow);
+    border-color: var(--open-app-sidebar-accent);
   }
 
   .newSessionText {
     display: inline-flex;
     align-items: center;
     gap: 8px;
-    color: @colorText;
+    color: var(--open-app-sidebar-text);
     font-size: @fontSize;
     font-weight: 400;
     user-select: none;
@@ -97,12 +178,44 @@
     height: 22px;
     padding: 0 @paddingXs;
     border-radius: @borderRadiusOuter;
-    background: @colorBgLayout;
-    color: @colorTextDescription;
+    background: var(--open-app-sidebar-hover);
+    color: var(--open-app-sidebar-text-secondary);
     font-size: @fontSizeSm;
   }
 }
 
+.themeSwitcher {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 2px;
+  padding: 3px;
+  border: 1px solid var(--open-app-sidebar-control-border);
+  border-radius: @borderRadiusLg;
+  background: var(--open-app-theme-switch-bg);
+}
+
+.themeOption {
+  min-width: 0;
+  height: 28px;
+  border: 0;
+  border-radius: @borderRadius;
+  background: transparent;
+  color: var(--open-app-sidebar-text-secondary);
+  font-size: @fontSizeSm;
+  cursor: pointer;
+  transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
+
+  &:hover {
+    color: var(--open-app-sidebar-text);
+  }
+
+  &.themeOptionActive {
+    background: var(--open-app-theme-switch-active-bg);
+    color: var(--open-app-theme-switch-active-text);
+    box-shadow: 0 6px 14px rgba(0, 0, 0, 12%);
+  }
+}
+
 // ========================== 导航 ==========================
 .pageNavList {
   display: flex;
@@ -119,6 +232,7 @@
   align-items: center;
   gap: 8px;
   color: @colorText;
+  color: var(--open-app-sidebar-text);
   cursor: pointer;
   user-select: none;
   transition: background-color 0.2s ease, color 0.2s ease;
@@ -129,11 +243,24 @@
   }
 
   &:hover {
-    background-color: #e6e7e8;
+    background-color: var(--open-app-sidebar-hover);
   }
 
   &.page-nav-item-active {
-    background-color: #e6e7e8;
+    position: relative;
+    background-color: var(--open-app-sidebar-active-bg);
+    color: var(--open-app-sidebar-active-text);
+    box-shadow: var(--open-app-sidebar-control-shadow);
+
+    &::before {
+      position: absolute;
+      left: 5px;
+      width: 3px;
+      height: 16px;
+      border-radius: 999px;
+      background: var(--open-app-sidebar-accent-2);
+      content: '';
+    }
   }
 }
 
@@ -156,6 +283,7 @@
     align-items: center;
     gap: 8px;
     color: @colorText;
+    color: var(--open-app-sidebar-text);
     font-size: @fontSize;
     font-weight: 400;
   }
@@ -164,7 +292,7 @@
   .more-conversation {
     line-height: @lineHeight;
     padding: 0;
-    color: @navSecondMenuTextSecondary;
+    color: var(--open-app-sidebar-text-secondary);
     font-size: @fontSizeSm;
     cursor: pointer;
     transition: color 0.3s ease;
@@ -172,7 +300,7 @@
     user-select: none;
 
     &:hover {
-      color: @navSecondMenuTextSecondary;
+      color: var(--open-app-sidebar-text);
     }
   }
 }
@@ -182,7 +310,7 @@
 
   .no-used {
     margin-left: 6px;
-    color: @colorTextDescription;
+    color: var(--open-app-sidebar-muted);
   }
 }
 
@@ -196,7 +324,7 @@
   background: linear-gradient(
     180deg,
     rgba(255, 255, 255, 0%) 0%,
-    #f9fafb 80.65%
+    var(--open-app-sidebar-gradient-end) 80.65%
   );
   pointer-events: none;
   z-index: 1;
@@ -206,12 +334,13 @@
 .user-area {
   padding: @paddingXxs @paddingXs;
   border-radius: @borderRadiusLg;
+  background: var(--open-app-sidebar-footer-bg);
   cursor: pointer;
   transition: box-shadow 0.2s ease-in-out, background-color 0.2s ease-in-out;
 
   &:hover {
-    background-color: @colorBgLayout;
-    box-shadow: @boxShadowDrawerUp;
+    background-color: var(--open-app-sidebar-hover);
+    box-shadow: var(--open-app-sidebar-control-shadow);
   }
 
   // 用户头像
@@ -231,15 +360,46 @@
 
   // 用户名称
   .user-name {
-    color: @colorTextSecondary;
+    color: var(--open-app-sidebar-text-secondary);
   }
 
   .active-icon-container {
-    color: @navFirstMenuTextSecondary;
+    color: var(--open-app-sidebar-text-secondary);
     padding: @paddingXs;
   }
 }
 
+.theme-dispatch {
+  .agentSidebarContainer {
+    background:
+      linear-gradient(180deg, rgba(0, 166, 122, 12%) 0%, rgba(0, 63, 66, 0%) 34%),
+      var(--open-app-sidebar-bg);
+  }
+
+  .sidebarTop {
+    .logo-container {
+      box-shadow: 0 0 0 3px rgba(126, 232, 196, 18%);
+    }
+  }
+
+  .newSessionBtn {
+    backdrop-filter: blur(10px);
+  }
+}
+
+.theme-portal {
+  .agentSidebarContainer {
+    border-top: 4px solid var(--open-app-sidebar-accent);
+  }
+
+  .sidebarTop {
+    padding: 0 @paddingXs;
+    border-radius: @borderRadiusLg;
+    background: #ffffff;
+    box-shadow: 0 8px 20px rgba(0, 101, 105, 8%);
+  }
+}
+
 .messageContainer {
   left: 13px !important;
   bottom: 53px !important;
diff --git a/qiming/src/pages/OpenApp/BaseTemplate/index.tsx b/qiming/src/pages/OpenApp/BaseTemplate/index.tsx
index 396f4650..5886e449 100644
--- a/qiming/src/pages/OpenApp/BaseTemplate/index.tsx
+++ b/qiming/src/pages/OpenApp/BaseTemplate/index.tsx
@@ -37,6 +37,12 @@ import {
 } from 'umi';
 import ConversationItem from './ConversationItem';
 import styles from './index.less';
+import {
+  OPEN_APP_THEME_STORAGE_KEY,
+  OpenAppTheme,
+  getInitialOpenAppTheme,
+  openAppThemes,
+} from './openAppTheme';
 
 // 绑定 classNames，便于动态样式组合
 const cx = classNames.bind(styles);
@@ -96,6 +102,9 @@ const BaseTemplate: React.FC = () => {
   // 底部渐变显示状态
   const [showFooterTopGradient, setShowFooterTopGradient] =
     useState<boolean>(false);
+  const [openAppTheme, setOpenAppTheme] = useState<OpenAppTheme>(
+    getInitialOpenAppTheme,
+  );
 
   /** 手机端且侧栏展开时收起侧栏（用于点主内容区、新建会话、历史项等） */
   const closeSidebarIfMobileOpen = useCallback(() => {
@@ -164,6 +173,10 @@ const BaseTemplate: React.FC = () => {
     document.documentElement.style.minWidth = 'unset';
   }, [agentId]);
 
+  useEffect(() => {
+    localStorage.setItem(OPEN_APP_THEME_STORAGE_KEY, openAppTheme);
+  }, [openAppTheme]);
+
   // 已发布的智能体详情接口
   const { run: runDetail } = useRequest(apiPublishedAgentInfo, {
     manual: true,
@@ -376,7 +389,6 @@ const BaseTemplate: React.FC = () => {
         zIndex: 999,
         pointerEvents: isAppSidebarVisible ? 'auto' : 'none',
         transform: isAppSidebarVisible ? 'translateX(0)' : 'translateX(-100%)',
-        backgroundColor: '#f5f5f5',
       };
     }
     return {
@@ -405,7 +417,14 @@ const BaseTemplate: React.FC = () => {
   const showAppSidebarLoading = appAgentDetailLoading || !appAgentDetail;
 
   return (
-    <div className={cx('flex', 'h-full', styles.container)}>
+    <div
+      className={cx(
+        'flex',
+        'h-full',
+        styles.container,
+        styles[`theme-${openAppTheme}`],
+      )}
+    >
       {/* 侧边菜单栏区域 */}
       <div
         className={cx(styles.agentSidebarContainer, {
@@ -493,6 +512,23 @@ const BaseTemplate: React.FC = () => {
               </div>
             </div>
 
+            <div className={styles.themeSwitcher}>
+              {openAppThemes.map((theme) => (
+                <button
+                  key={theme.key}
+                  type="button"
+                  className={cx(styles.themeOption, {
+                    [styles.themeOptionActive]: openAppTheme === theme.key,
+                  })}
+                  title={theme.title}
+                  aria-pressed={openAppTheme === theme.key}
+                  onClick={() => setOpenAppTheme(theme.key)}
+                >
+                  {theme.label}
+                </button>
+              ))}
+            </div>
+
             {/* 页面导航 */}
             <ConditionRender
               condition={appAgentDetail?.customPageMenus?.length > 0}
diff --git a/qiming/src/pages/OpenApp/BaseTemplate/openAppTheme.ts b/qiming/src/pages/OpenApp/BaseTemplate/openAppTheme.ts
new file mode 100644
index 00000000..d68d917c
--- /dev/null
+++ b/qiming/src/pages/OpenApp/BaseTemplate/openAppTheme.ts
@@ -0,0 +1,38 @@
+export const OPEN_APP_THEME_STORAGE_KEY = 'qiming-open-app-theme';
+
+export const openAppThemes = [
+  {
+    key: 'light',
+    label: '纯白',
+    title: '纯白国网绿轻量版',
+  },
+  {
+    key: 'dispatch',
+    label: '调度',
+    title: '深绿调度台版',
+  },
+  {
+    key: 'portal',
+    label: '门户',
+    title: '绿白政企门户版',
+  },
+] as const;
+
+export type OpenAppTheme = (typeof openAppThemes)[number]['key'];
+
+const DEFAULT_OPEN_APP_THEME: OpenAppTheme = 'dispatch';
+
+export const isOpenAppTheme = (value: string): value is OpenAppTheme => {
+  return openAppThemes.some((theme) => theme.key === value);
+};
+
+export const getInitialOpenAppTheme = (): OpenAppTheme => {
+  if (typeof window === 'undefined') {
+    return DEFAULT_OPEN_APP_THEME;
+  }
+
+  const storedTheme = window.localStorage.getItem(OPEN_APP_THEME_STORAGE_KEY);
+  return storedTheme && isOpenAppTheme(storedTheme)
+    ? storedTheme
+    : DEFAULT_OPEN_APP_THEME;
+};
diff --git a/qiming/tests/openAppTheme.test.ts b/qiming/tests/openAppTheme.test.ts
new file mode 100644
index 00000000..0fe0eeb1
--- /dev/null
+++ b/qiming/tests/openAppTheme.test.ts
@@ -0,0 +1,45 @@
+import {
+  OPEN_APP_THEME_STORAGE_KEY,
+  getInitialOpenAppTheme,
+  isOpenAppTheme,
+  openAppThemes,
+} from '@/pages/OpenApp/BaseTemplate/openAppTheme';
+
+describe('openAppTheme', () => {
+  beforeEach(() => {
+    localStorage.clear();
+  });
+
+  test('defines the three State Grid green OpenApp themes', () => {
+    expect(openAppThemes.map((theme) => theme.key)).toEqual([
+      'light',
+      'dispatch',
+      'portal',
+    ]);
+    expect(openAppThemes.map((theme) => theme.label)).toEqual([
+      '纯白',
+      '调度',
+      '门户',
+    ]);
+  });
+
+  test('recognizes valid theme keys only', () => {
+    expect(isOpenAppTheme('light')).toBe(true);
+    expect(isOpenAppTheme('dispatch')).toBe(true);
+    expect(isOpenAppTheme('portal')).toBe(true);
+    expect(isOpenAppTheme('dark')).toBe(false);
+    expect(isOpenAppTheme('')).toBe(false);
+  });
+
+  test('uses dispatch as the default visual variant', () => {
+    expect(getInitialOpenAppTheme()).toBe('dispatch');
+  });
+
+  test('restores a valid stored theme and ignores invalid storage values', () => {
+    localStorage.setItem(OPEN_APP_THEME_STORAGE_KEY, 'portal');
+    expect(getInitialOpenAppTheme()).toBe('portal');
+
+    localStorage.setItem(OPEN_APP_THEME_STORAGE_KEY, 'unknown');
+    expect(getInitialOpenAppTheme()).toBe('dispatch');
+  });
+});