!60 完善登录页主题切换功能

Merge pull request !60 from Coast/fix/theme-follow-system

src/App.vue

@@ -27,6 +27,8 @@ const watermarkContent = appConfig.name;
 
 // 明亮/暗黑主题水印字体颜色适配
 const fontColor = computed(() => {
-  return settingsStore.theme === ThemeMode.DARK ? "rgba(255, 255, 255, .15)" : "rgba(0, 0, 0, .15)";
+  return settingsStore.resolvedTheme === ThemeMode.DARK
+    ? "rgba(255, 255, 255, .15)"
+    : "rgba(0, 0, 0, .15)";
 });
 </script>

src/assets/images/login-bg-dark.svg

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 1400 800">
+  <defs>
+    <linearGradient id="bgDark" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="#0b1324" />
+      <stop offset="58%" stop-color="#162135" />
+      <stop offset="100%" stop-color="#1e2c44" />
+    </linearGradient>
+
+    <radialGradient id="glowPrimary" cx="18%" cy="14%" r="62%">
+      <stop offset="0%" stop-color="rgba(98,142,255,0.42)" />
+      <stop offset="46%" stop-color="rgba(98,142,255,0.18)" />
+      <stop offset="100%" stop-color="rgba(98,142,255,0)" />
+    </radialGradient>
+
+    <radialGradient id="glowSecondary" cx="82%" cy="70%" r="56%">
+      <stop offset="0%" stop-color="rgba(59,108,224,0.28)" />
+      <stop offset="48%" stop-color="rgba(59,108,224,0.14)" />
+      <stop offset="100%" stop-color="rgba(59,108,224,0)" />
+    </radialGradient>
+
+    <linearGradient id="meshDark" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="rgba(255,255,255,0.1)" />
+      <stop offset="35%" stop-color="rgba(255,255,255,0.04)" />
+      <stop offset="100%" stop-color="rgba(255,255,255,0)" />
+    </linearGradient>
+  </defs>
+
+  <rect width="100%" height="100%" fill="url(#bgDark)" />
+  <rect width="100%" height="100%" fill="url(#glowPrimary)" />
+  <rect width="100%" height="100%" fill="url(#glowSecondary)" />
+  <rect width="100%" height="100%" fill="url(#meshDark)" />
+
+  <g opacity="0.32">
+    <rect x="-40" y="520" width="520" height="220" rx="180" fill="rgba(255,255,255,0.12)" />
+    <rect x="760" y="90" width="520" height="210" rx="180" fill="rgba(255,255,255,0.1)" />
+    <rect x="420" y="620" width="560" height="190" rx="180" fill="rgba(255,255,255,0.08)" />
+  </g>
+</svg>

src/assets/images/login-bg.svg

@@ -1,39 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 1400 800">
   <defs>
-    <style>
-      @media (prefers-color-scheme: dark) {
-        #bg-layer { fill: url(#bgDark); }
-        #soft-glow { fill: url(#glowDark); }
-        .accent-arc { stroke: rgba(118, 156, 255, 0.35); }
-        .accent-dot { fill: rgba(154, 188, 255, 0.45); }
-      }
-    </style>
-
     <linearGradient id="bgLight" x1="0%" y1="0%" x2="100%" y2="100%">
       <stop offset="0%" stop-color="#f3f7ff" />
       <stop offset="60%" stop-color="#e3edff" />
       <stop offset="100%" stop-color="#d6e7ff" />
     </linearGradient>
 
-    <linearGradient id="bgDark" x1="0%" y1="0%" x2="100%" y2="100%">
-      <stop offset="0%" stop-color="#0b1324" />
-      <stop offset="60%" stop-color="#162135" />
-      <stop offset="100%" stop-color="#1e2c44" />
-    </linearGradient>
-    
     <radialGradient id="glowLight" cx="20%" cy="15%" r="60%">
       <stop offset="0%" stop-color="rgba(64,128,255,0.35)" />
       <stop offset="40%" stop-color="rgba(64,128,255,0.18)" />
       <stop offset="100%" stop-color="rgba(64,128,255,0)" />
     </radialGradient>
 
-    <radialGradient id="glowDark" cx="20%" cy="15%" r="60%">
-      <stop offset="0%" stop-color="rgba(98,142,255,0.4)" />
-      <stop offset="50%" stop-color="rgba(98,142,255,0.18)" />
-      <stop offset="100%" stop-color="rgba(98,142,255,0)" />
-    </radialGradient>
-    
     <radialGradient id="glowSecondary" cx="80%" cy="70%" r="55%">
       <stop offset="0%" stop-color="rgba(22,93,255,0.3)" />
       <stop offset="50%" stop-color="rgba(22,93,255,0.12)" />

src/assets/images/login-bg1.svg

@@ -6,15 +6,6 @@
       --orange: rgba(230, 162, 60, 0.06);
       --green: rgba(144, 238, 144, 0.06);
     }
-
-    @media (prefers-color-scheme: dark) {
-      :root {
-        --blue: rgba(64, 158, 255, 0.04);
-        --grey: rgba(144, 147, 153, 0.03);
-        --orange: rgba(230, 162, 60, 0.04);
-        --green: rgba(144, 238, 144, 0.04);
-      }
-    }
   </style>
 
   <!-- 左侧波浪 -->

src/components/Hamburger/index.vue

@@ -19,7 +19,7 @@ const layout = computed(() => settingsStore.layout);
 
 const hamburgerClass = computed(() => {
   // 如果暗黑主题
-  if (settingsStore.theme === ThemeMode.DARK) {
+  if (settingsStore.resolvedTheme === ThemeMode.DARK) {
     return "hamburger--white";
   }
 

src/components/ThemeSwitch/index.vue

@@ -1,7 +1,7 @@
 <template>
   <el-dropdown trigger="click" @command="handleDarkChange">
     <el-icon :size="20">
-      <component :is="settingsStore.theme === ThemeMode.DARK ? Moon : Sunny" />
+      <component :is="currentThemeIcon" />
     </el-icon>
     <template #dropdown>
       <el-dropdown-menu>
@@ -34,6 +34,14 @@ const theneList = [
   { label: t("login.auto"), value: ThemeMode.AUTO, component: Monitor },
 ];
 
+const currentThemeIcon = computed(() => {
+  if (settingsStore.theme === ThemeMode.AUTO) {
+    return Monitor;
+  }
+
+  return settingsStore.resolvedTheme === ThemeMode.DARK ? Moon : Sunny;
+});
+
 const handleDarkChange = (theme: ThemeMode) => {
   settingsStore.theme = theme;
 };

src/layouts/MixLayout.vue

@@ -77,7 +77,7 @@ import { useLayout } from "./useLayout";
 import { useAppStore, usePermissionStore, useSettingsStore } from "@/stores";
 import { isExternal } from "@/utils/index";
 import { translateRouteTitle } from "@/lang/utils";
-import { SidebarColor } from "@/enums/settings";
+import { SidebarColor, ThemeMode } from "@/enums/settings";
 import { ElIcon } from "element-plus";
 import BaseLayout from "./BaseLayout.vue";
 import LayoutLogo from "./components/LayoutLogo.vue";
@@ -127,7 +127,8 @@ const isLogoCollapsed = computed(() => width.value < 768);
 // 是否使用深色菜单配色（暗色主题或经典蓝侧边栏）
 const useMenuColors = computed(
   () =>
-    settingsStore.theme === "dark" || settingsStore.sidebarColorScheme === SidebarColor.CLASSIC_BLUE
+    settingsStore.resolvedTheme === ThemeMode.DARK ||
+    settingsStore.sidebarColorScheme === SidebarColor.CLASSIC_BLUE
 );
 
 // 顶部菜单项（处理单子菜单显示优化）

src/layouts/components/LayoutSettings.vue

@@ -11,13 +11,17 @@
         <el-divider>{{ t("settings.theme") }}</el-divider>
 
         <div class="flex-center">
-          <el-switch
+          <el-radio-group v-model="themeMode" class="theme-mode-group">
-            v-model="isDark"
+            <el-radio-button :value="ThemeMode.LIGHT">
-            active-icon="Moon"
+              {{ t("login.light") }}
-            inactive-icon="Sunny"
+            </el-radio-button>
-            class="theme-switch"
+            <el-radio-button :value="ThemeMode.DARK">
-            @change="handleThemeChange"
+              {{ t("login.dark") }}
-          />
+            </el-radio-button>
+            <el-radio-button :value="ThemeMode.AUTO">
+              {{ t("login.auto") }}
+            </el-radio-button>
+          </el-radio-group>
         </div>
       </section>
 
@@ -71,7 +75,10 @@
           <el-switch v-model="settingsStore.colorWeak" />
         </div>
 
-        <div v-if="!isDark" class="config-item flex-x-between">
+        <div
+          v-if="settingsStore.resolvedTheme !== ThemeMode.DARK"
+          class="config-item flex-x-between"
+        >
           <span class="text-xs">{{ t("settings.sidebarColorScheme") }}</span>
           <el-radio-group v-model="sidebarColor" @change="changeSidebarColor">
             <el-radio :value="SidebarColor.CLASSIC_BLUE">
@@ -199,8 +206,13 @@ const colorPresets = [...themeColorPresets];
 
 const settingsStore = useSettingsStore();
 
-const isDark = ref<boolean>(settingsStore.theme === ThemeMode.DARK);
 const sidebarColor = ref(settingsStore.sidebarColorScheme);
+const themeMode = computed({
+  get: () => settingsStore.theme,
+  set: (value: ThemeMode) => {
+    settingsStore.theme = value;
+  },
+});
 
 const selectedThemeColor = computed({
   get: () => settingsStore.themeColor,
@@ -214,15 +226,6 @@ const drawerVisible = computed({
   set: (value) => (settingsStore.settingsVisible = value),
 });
 
-/**
- * 处理主题切换
- *
- * @param isDark 是否启用暗黑模式
- */
-const handleThemeChange = (isDark: string | number | boolean) => {
-  settingsStore.theme = isDark ? ThemeMode.DARK : ThemeMode.LIGHT;
-};
-
 /**
  * 更改侧边栏颜色
  *
@@ -277,8 +280,6 @@ const handleResetSettings = async () => {
   try {
     settingsStore.resetSettings();
 
-    // 同步更新本地状态"
-    isDark.value = settingsStore.theme === ThemeMode.DARK;
     sidebarColor.value = settingsStore.sidebarColorScheme;
 
     ElMessage.success(t("settings.resetSuccess"));

src/layouts/components/LayoutSidebar.vue

@@ -29,7 +29,7 @@ import { useRoute } from "vue-router";
 import path from "path-browserify";
 import type { MenuInstance } from "element-plus";
 import type { RouteRecordRaw } from "vue-router";
-import { SidebarColor } from "@/enums/settings";
+import { SidebarColor, ThemeMode } from "@/enums/settings";
 import { useSettingsStore, useAppStore } from "@/stores";
 import { isExternal } from "@/utils/index";
 import LayoutSidebarItem from "./LayoutSidebarItem.vue";
@@ -61,7 +61,7 @@ const currentRoute = useRoute();
 const expandedMenuIndexes = ref<string[]>([]);
 
 // 获取主题
-const theme = computed(() => settingsStore.theme);
+const theme = computed(() => settingsStore.resolvedTheme);
 
 // 获取浅色主题下的侧边栏配色方案
 const sidebarColorScheme = computed(() => settingsStore.sidebarColorScheme);
@@ -69,7 +69,7 @@ const sidebarColorScheme = computed(() => settingsStore.sidebarColorScheme);
 // 菜单主题属性
 const menuThemeProps = computed(() => {
   const isDarkOrClassicBlue =
-    theme.value === "dark" || sidebarColorScheme.value === SidebarColor.CLASSIC_BLUE;
+    theme.value === ThemeMode.DARK || sidebarColorScheme.value === SidebarColor.CLASSIC_BLUE;
 
   return {
     backgroundColor: isDarkOrClassicBlue ? variables["menu-background"] : undefined,

src/layouts/components/LayoutToolbar.vue

@@ -125,15 +125,15 @@ function handleProfileClick() {
 
 // 根据主题和侧边栏配色方案选择样式类
 const navbarActionsClass = computed(() => {
-  const { theme, sidebarColorScheme, layout } = settingStore;
+  const { resolvedTheme, sidebarColorScheme, layout } = settingStore;
 
   // 暗黑主题下，所有布局都使用白色文字
-  if (theme === ThemeMode.DARK) {
+  if (resolvedTheme === ThemeMode.DARK) {
     return "navbar-actions--white-text";
   }
 
   // 明亮主题下
-  if (theme === ThemeMode.LIGHT) {
+  if (resolvedTheme === ThemeMode.LIGHT) {
     // 顶部布局和混合布局的顶部区域：
     // - 如果侧边栏是经典蓝色，使用白色文字
     // - 如果侧边栏是极简白色，使用深色文字

src/stores/settings.ts

@@ -1,6 +1,13 @@
 import { SidebarColor, ThemeMode } from "@/enums";
 import type { LayoutMode } from "@/enums";
-import { applyTheme, generateThemeColors, toggleDarkMode, toggleSidebarColor } from "@/utils/theme";
+import {
+  applyTheme,
+  generateThemeColors,
+  resolveThemeMode,
+  toggleDarkMode,
+  toggleSidebarColor,
+  watchSystemTheme,
+} from "@/utils/theme";
 import { STORAGE_KEYS } from "@/constants";
 import { defaults } from "@/settings";
 
@@ -25,14 +32,34 @@ export const useSettingsStore = defineStore("setting", () => {
   // 主题
   const theme = useStorage<ThemeMode>(STORAGE_KEYS.THEME, defaults.theme);
   const themeColor = useStorage(STORAGE_KEYS.THEME_COLOR, defaults.themeColor);
+  const resolvedTheme = ref<ThemeMode>(resolveThemeMode(theme.value));
 
   // 特殊模式
   const grayMode = useStorage(STORAGE_KEYS.GRAY_MODE, false);
   const colorWeak = useStorage(STORAGE_KEYS.COLOR_WEAK, false);
 
   // 主题变化监听
+  let stopWatchingSystemTheme: (() => void) | undefined;
+
   watch(
-    [theme, themeColor],
+    theme,
+    (value) => {
+      stopWatchingSystemTheme?.();
+      resolvedTheme.value = resolveThemeMode(value);
+
+      if (value === ThemeMode.AUTO) {
+        stopWatchingSystemTheme = watchSystemTheme((systemTheme) => {
+          resolvedTheme.value = systemTheme;
+        });
+      } else {
+        stopWatchingSystemTheme = undefined;
+      }
+    },
+    { immediate: true }
+  );
+
+  watch(
+    [resolvedTheme, themeColor],
     ([t, c]: [ThemeMode, string]) => {
       toggleDarkMode(t === ThemeMode.DARK);
       applyTheme(generateThemeColors(c, t));
@@ -87,6 +114,7 @@ export const useSettingsStore = defineStore("setting", () => {
     layout,
     themeColor,
     theme,
+    resolvedTheme,
     resetSettings,
   };
 });

src/utils/theme.ts

@@ -1,5 +1,7 @@
 import { ThemeMode } from "@/enums";
 
+const SYSTEM_DARK_MEDIA = "(prefers-color-scheme: dark)";
+
 // 辅助函数：将十六进制颜色转换为 RGB
 function hexToRgb(hex: string): [number, number, number] {
   const bigint = parseInt(hex.slice(1), 16);
@@ -52,6 +54,7 @@ export const getLightColor = (color: string, level: number): string => {
  * @param theme 主题类型
  */
 export function generateThemeColors(primary: string, theme: ThemeMode) {
+  const resolvedTheme = resolveThemeMode(theme);
   const colors: Record<string, string> = {
     primary,
   };
@@ -59,18 +62,39 @@ export function generateThemeColors(primary: string, theme: ThemeMode) {
   // 生成浅色变体
   for (let i = 1; i <= 9; i++) {
     colors[`primary-light-${i}`] =
-      theme === ThemeMode.LIGHT
+      resolvedTheme === ThemeMode.LIGHT
         ? `${getLightColor(primary, i / 10)}`
         : `${getDarkColor(primary, i / 10)}`;
   }
 
   // 生成深色变体
   colors["primary-dark-2"] =
-    theme === ThemeMode.LIGHT ? `${getLightColor(primary, 0.2)}` : `${getDarkColor(primary, 0.3)}`;
+    resolvedTheme === ThemeMode.LIGHT
+      ? `${getLightColor(primary, 0.2)}`
+      : `${getDarkColor(primary, 0.3)}`;
 
   return colors;
 }
 
+export function getSystemTheme() {
+  return window.matchMedia(SYSTEM_DARK_MEDIA).matches ? ThemeMode.DARK : ThemeMode.LIGHT;
+}
+
+export function resolveThemeMode(theme: ThemeMode) {
+  return theme === ThemeMode.AUTO ? getSystemTheme() : theme;
+}
+
+export function watchSystemTheme(callback: (theme: ThemeMode) => void) {
+  const mediaQuery = window.matchMedia(SYSTEM_DARK_MEDIA);
+  const handler = () => callback(mediaQuery.matches ? ThemeMode.DARK : ThemeMode.LIGHT);
+
+  mediaQuery.addEventListener("change", handler);
+
+  return () => {
+    mediaQuery.removeEventListener("change", handler);
+  };
+}
+
 export function applyTheme(colors: Record<string, string>) {
   const el = document.documentElement;
 

src/views/login/index.vue

@@ -101,6 +101,55 @@ const formComponents = {
 
 <style lang="scss" scoped>
 .auth-view {
+  --auth-page-bg: #f5f7ff;
+  --auth-overlay: linear-gradient(120deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0));
+  --auth-toolbar-bg: rgba(255, 255, 255, 0.85);
+  --auth-toolbar-border: rgba(22, 93, 255, 0.15);
+  --auth-toolbar-shadow: 0 10px 30px rgba(22, 93, 255, 0.12);
+  --auth-toolbar-hover-shadow: 0 16px 40px rgba(22, 93, 255, 0.18);
+  --auth-toolbar-inner-hover-bg: var(--el-fill-color);
+  --auth-feature-text: var(--el-text-color-primary);
+  --auth-badge-text: rgba(22, 93, 255, 0.95);
+  --auth-badge-bg: rgba(22, 93, 255, 0.1);
+  --auth-dot-bg: #165dff;
+  --auth-dot-shadow: 0 0 12px rgba(22, 93, 255, 0.7);
+  --auth-subtitle-text: var(--el-text-color-regular);
+  --auth-highlight-text: var(--el-text-color-primary);
+  --auth-highlight-bg: rgba(255, 255, 255, 0.9);
+  --auth-highlight-border: rgba(64, 128, 255, 0.08);
+  --auth-highlight-accent: rgba(22, 93, 255, 0.8);
+  --auth-panel-bg: rgba(255, 255, 255, 0.95);
+  --auth-panel-border: rgba(22, 93, 255, 0.1);
+  --auth-panel-shadow:
+    0 16px 48px rgba(22, 93, 255, 0.12), 0 4px 16px rgba(22, 93, 255, 0.08),
+    0 0 0 1px rgba(255, 255, 255, 0.5) inset;
+  --auth-brand-border: rgba(22, 93, 255, 0.06);
+  --auth-panel-title: var(--el-text-color-primary);
+  --auth-version-label: var(--el-text-color-secondary);
+  --auth-version-tag-bg: rgba(22, 93, 255, 0.1);
+  --auth-version-tag-border: rgba(22, 93, 255, 0.12);
+  --auth-version-tag-text: rgba(22, 93, 255, 0.9);
+  --auth-logo-bg: radial-gradient(circle at 30% 20%, #ffffff, #e6efff);
+  --auth-logo-shadow: 0 8px 20px rgba(22, 93, 255, 0.16), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
+  --auth-footer-border: rgba(22, 93, 255, 0.06);
+  --auth-link: rgba(22, 93, 255, 0.85);
+  --auth-link-hover: rgba(22, 93, 255, 1);
+  --auth-inline-text: var(--el-text-color-regular);
+  --auth-input-bg: rgba(255, 255, 255, 0.92);
+  --auth-input-border: var(--el-border-color);
+  --auth-input-border-hover: var(--el-border-color-hover);
+  --auth-input-border-focus: var(--el-color-primary);
+  --auth-input-text: var(--el-text-color-primary);
+  --auth-input-placeholder: var(--el-text-color-placeholder);
+  --auth-input-icon: var(--el-text-color-secondary);
+  --auth-checkbox-text: var(--el-text-color-regular);
+  --auth-divider: var(--el-border-color-light);
+  --auth-social-text: var(--el-text-color-secondary);
+  --auth-social-hover-bg: var(--el-fill-color);
+  --auth-captcha-shadow: 0 0 0 1px var(--el-border-color) inset;
+  --auth-button-shadow: 0 12px 24px rgba(22, 93, 255, 0.12);
+  --auth-button-success-shadow: 0 12px 24px rgba(35, 166, 111, 0.2);
+  --auth-button-warning-shadow: 0 12px 24px rgba(230, 162, 60, 0.2);
   position: relative;
   z-index: 1;
   display: flex;
@@ -110,7 +159,7 @@ const formComponents = {
   padding: clamp(1rem, 3vw, 2rem);
   overflow-x: hidden;
   overflow-y: auto;
-  background-color: #f5f7ff;
+  background-color: var(--auth-page-bg);
 
   &::before {
     position: fixed;
@@ -126,7 +175,62 @@ const formComponents = {
     z-index: -1;
     pointer-events: none;
     content: "";
-    background: linear-gradient(120deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0));
+    background: var(--auth-overlay);
+  }
+}
+
+.dark .auth-view {
+  --auth-page-bg: #08101f;
+  --auth-overlay: linear-gradient(120deg, rgba(7, 12, 24, 0.4), rgba(7, 12, 24, 0));
+  --auth-toolbar-bg: rgba(24, 28, 43, 0.9);
+  --auth-toolbar-border: rgba(64, 128, 255, 0.35);
+  --auth-toolbar-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(90, 140, 255, 0.25) inset;
+  --auth-toolbar-hover-shadow:
+    0 16px 40px rgba(0, 0, 0, 0.72), 0 0 0 1px rgba(96, 148, 255, 0.28) inset;
+  --auth-feature-text: rgba(240, 245, 255, 0.92);
+  --auth-badge-text: rgba(160, 190, 255, 0.95);
+  --auth-badge-bg: rgba(64, 128, 255, 0.12);
+  --auth-dot-bg: #7aa2ff;
+  --auth-subtitle-text: rgba(220, 230, 255, 0.75);
+  --auth-highlight-text: rgba(230, 236, 255, 0.85);
+  --auth-highlight-bg: rgba(18, 22, 36, 0.7);
+  --auth-highlight-border: rgba(98, 149, 255, 0.18);
+  --auth-highlight-accent: rgba(122, 162, 255, 0.9);
+  --auth-panel-bg: rgba(26, 32, 48, 0.9);
+  --auth-panel-border: rgba(86, 140, 255, 0.28);
+  --auth-panel-shadow:
+    0 20px 60px rgba(0, 0, 0, 0.58), 0 4px 16px rgba(0, 0, 0, 0.36),
+    0 0 0 1px rgba(110, 150, 255, 0.16) inset;
+  --auth-brand-border: rgba(64, 128, 255, 0.12);
+  --auth-panel-title: rgba(245, 248, 255, 0.95);
+  --auth-version-label: rgba(186, 202, 236, 0.78);
+  --auth-version-tag-bg: rgba(86, 140, 255, 0.16);
+  --auth-version-tag-border: rgba(104, 156, 255, 0.2);
+  --auth-version-tag-text: rgba(214, 226, 255, 0.96);
+  --auth-logo-bg: radial-gradient(circle at 30% 20%, #1f2438, #141827);
+  --auth-logo-shadow: 0 8px 20px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(90, 140, 255, 0.3) inset;
+  --auth-footer-border: rgba(64, 128, 255, 0.12);
+  --auth-link: rgba(140, 170, 255, 0.88);
+  --auth-link-hover: rgba(160, 190, 255, 1);
+  --auth-inline-text: rgba(208, 220, 244, 0.76);
+  --auth-input-bg: rgba(14, 19, 33, 0.92);
+  --auth-input-border: rgba(104, 132, 194, 0.28);
+  --auth-input-border-hover: rgba(122, 154, 224, 0.4);
+  --auth-input-border-focus: rgba(122, 162, 255, 0.92);
+  --auth-input-text: rgba(240, 245, 255, 0.96);
+  --auth-input-placeholder: rgba(168, 185, 221, 0.56);
+  --auth-input-icon: rgba(168, 186, 227, 0.74);
+  --auth-checkbox-text: rgba(208, 220, 244, 0.78);
+  --auth-divider: rgba(98, 128, 191, 0.24);
+  --auth-social-text: rgba(176, 192, 224, 0.72);
+  --auth-social-hover-bg: rgba(36, 49, 79, 0.78);
+  --auth-captcha-shadow: 0 0 0 1px rgba(104, 132, 194, 0.28) inset;
+  --auth-button-shadow: 0 14px 26px rgba(51, 100, 214, 0.22);
+  --auth-button-success-shadow: 0 14px 26px rgba(34, 149, 108, 0.24);
+  --auth-button-warning-shadow: 0 14px 26px rgba(211, 142, 38, 0.24);
+
+  &::before {
+    background-image: url("@/assets/images/login-bg-dark.svg");
   }
 }
 
@@ -135,16 +239,16 @@ const formComponents = {
   gap: 0.75rem;
   align-self: flex-end;
   padding: 0.5rem 0.75rem;
-  background-color: rgba(255, 255, 255, 0.85);
+  background-color: var(--auth-toolbar-bg);
-  border: 1px solid rgba(22, 93, 255, 0.15);
+  border: 1px solid var(--auth-toolbar-border);
   border-radius: 999px;
-  box-shadow: 0 10px 30px rgba(22, 93, 255, 0.12);
+  box-shadow: var(--auth-toolbar-shadow);
   transition:
     transform 0.3s ease,
     box-shadow 0.3s ease;
 
   &:hover {
-    box-shadow: 0 16px 40px rgba(22, 93, 255, 0.18);
+    box-shadow: var(--auth-toolbar-hover-shadow);
     transform: translateY(-2px);
   }
 
@@ -158,7 +262,7 @@ const formComponents = {
     transition: background-color 0.3s ease;
 
     &:hover {
-      background-color: var(--el-fill-color);
+      background-color: var(--auth-toolbar-inner-hover-bg);
     }
   }
 
@@ -170,20 +274,6 @@ const formComponents = {
     align-self: flex-end;
     justify-content: center;
   }
-
-  @media (prefers-color-scheme: dark) {
-    background-color: rgba(24, 28, 43, 0.8);
-    border-color: rgba(64, 128, 255, 0.3);
-  }
-}
-
-/* 应用内暗黑主题下顶部设置面板的深色样式 */
-.dark .auth-view__toolbar {
-  background-color: rgba(24, 28, 43, 0.9);
-  border-color: rgba(64, 128, 255, 0.35);
-  box-shadow:
-    0 10px 30px rgba(0, 0, 0, 0.7),
-    0 0 0 1px rgba(90, 140, 255, 0.25) inset;
 }
 
 .auth-view__wrapper {
@@ -200,14 +290,10 @@ const formComponents = {
   flex-direction: column;
   justify-content: center;
   padding: clamp(1.5rem, 3vw, 3rem);
-  color: var(--el-text-color-primary);
+  color: var(--auth-feature-text);
   animation: featureFade 0.8s ease-out;
 }
 
-.dark .auth-feature {
-  color: rgba(240, 245, 255, 0.92);
-}
-
 @media (max-width: 768px) {
   .auth-view__wrapper {
     display: block;
@@ -234,28 +320,19 @@ const formComponents = {
   width: fit-content;
   padding: 0.3rem 0.9rem;
   font-size: 0.875rem;
-  color: rgba(22, 93, 255, 0.95);
+  color: var(--auth-badge-text);
   text-transform: uppercase;
   letter-spacing: 0.08em;
-  background: rgba(22, 93, 255, 0.1);
+  background: var(--auth-badge-bg);
   border-radius: 999px;
-
-  @media (prefers-color-scheme: dark) {
-    color: rgba(160, 190, 255, 0.95);
-    background: rgba(64, 128, 255, 0.12);
-  }
 }
 
 .auth-feature__dot {
   width: 0.5rem;
   height: 0.5rem;
-  background: #165dff;
+  background: var(--auth-dot-bg);
   border-radius: 50%;
-  box-shadow: 0 0 12px rgba(22, 93, 255, 0.7);
+  box-shadow: var(--auth-dot-shadow);
-
-  @media (prefers-color-scheme: dark) {
-    background: #7aa2ff;
-  }
 }
 
 .auth-feature__title {
@@ -269,11 +346,7 @@ const formComponents = {
   margin-bottom: 1.5rem;
   font-size: 1rem;
   line-height: 1.7;
-  color: var(--el-text-color-regular);
+  color: var(--auth-subtitle-text);
-
-  @media (prefers-color-scheme: dark) {
-    color: rgba(220, 230, 255, 0.75);
-  }
 }
 
 .auth-feature__highlights {
@@ -289,28 +362,16 @@ const formComponents = {
     align-items: flex-start;
     padding: 0.75rem 1rem;
     font-weight: 500;
-    color: var(--el-text-color-primary);
+    color: var(--auth-highlight-text);
-    background: rgba(255, 255, 255, 0.9);
+    background: var(--auth-highlight-bg);
-    border: 1px solid rgba(64, 128, 255, 0.08);
+    border: 1px solid var(--auth-highlight-border);
     border-radius: 12px;
     backdrop-filter: blur(6px);
 
     span {
       font-size: 0.75rem;
       line-height: 1.6;
-      color: rgba(22, 93, 255, 0.8);
+      color: var(--auth-highlight-accent);
-    }
-  }
-
-  @media (prefers-color-scheme: dark) {
-    li {
-      color: rgba(230, 236, 255, 0.85);
-      background: rgba(18, 22, 36, 0.7);
-      border-color: rgba(98, 149, 255, 0.18);
-
-      span {
-        color: rgba(122, 162, 255, 0.9);
-      }
     }
   }
 }
@@ -326,34 +387,12 @@ const formComponents = {
   min-height: 560px;
   padding: clamp(1.5rem, 3vw, 2rem);
   margin-inline: auto;
-  background: rgba(255, 255, 255, 0.95);
+  background: var(--auth-panel-bg);
-  border: 1px solid rgba(22, 93, 255, 0.1);
+  border: 1px solid var(--auth-panel-border);
   border-radius: 24px;
-  box-shadow:
+  box-shadow: var(--auth-panel-shadow);
-    0 16px 48px rgba(22, 93, 255, 0.12),
-    0 4px 16px rgba(22, 93, 255, 0.08),
-    0 0 0 1px rgba(255, 255, 255, 0.5) inset;
   backdrop-filter: blur(20px);
   animation: panelLift 0.7s ease;
-
-  @media (prefers-color-scheme: dark) {
-    background: rgba(18, 20, 32, 0.88);
-    border-color: rgba(64, 128, 255, 0.25);
-    box-shadow:
-      0 20px 60px rgba(0, 0, 0, 0.6),
-      0 4px 16px rgba(0, 0, 0, 0.4),
-      0 0 0 1px rgba(90, 140, 255, 0.12) inset;
-  }
-}
-
-/* 应用内暗黑主题（例如 html/body 上挂 .dark 类）下的登录表单样式 */
-.dark .auth-panel {
-  background: rgba(26, 32, 48, 0.9);
-  border-color: rgba(86, 140, 255, 0.28);
-  box-shadow:
-    0 20px 60px rgba(0, 0, 0, 0.58),
-    0 4px 16px rgba(0, 0, 0, 0.36),
-    0 0 0 1px rgba(110, 150, 255, 0.16) inset;
 }
 
 .auth-panel__brand {
@@ -363,11 +402,7 @@ const formComponents = {
   justify-content: space-between;
   padding-bottom: 0.875rem;
   margin-bottom: 1rem;
-  border-bottom: 1px solid rgba(22, 93, 255, 0.06);
+  border-bottom: 1px solid var(--auth-brand-border);
-
-  @media (prefers-color-scheme: dark) {
-    border-color: rgba(64, 128, 255, 0.12);
-  }
 }
 
 .auth-panel__logo-wrap {
@@ -376,18 +411,9 @@ const formComponents = {
   justify-content: center;
   width: 52px;
   height: 52px;
-  background: radial-gradient(circle at 30% 20%, #ffffff, #e6efff);
+  background: var(--auth-logo-bg);
   border-radius: 18px;
-  box-shadow:
+  box-shadow: var(--auth-logo-shadow);
-    0 8px 20px rgba(22, 93, 255, 0.16),
-    0 0 0 1px rgba(255, 255, 255, 0.8) inset;
-
-  @media (prefers-color-scheme: dark) {
-    background: radial-gradient(circle at 30% 20%, #1f2438, #141827);
-    box-shadow:
-      0 8px 20px rgba(0, 0, 0, 0.7),
-      0 0 0 1px rgba(90, 140, 255, 0.3) inset;
-  }
 }
 
 .auth-panel__logo {
@@ -416,7 +442,7 @@ const formComponents = {
   font-size: 1.2rem;
   font-weight: 650;
   line-height: 1.4;
-  color: var(--el-text-color-primary);
+  color: var(--auth-panel-title);
   white-space: nowrap;
 }
 
@@ -425,6 +451,16 @@ const formComponents = {
   gap: 0.5rem;
   align-items: center;
   font-size: 0.78rem;
+
+  :deep(.el-text) {
+    color: var(--auth-version-label);
+  }
+
+  :deep(.el-tag) {
+    color: var(--auth-version-tag-text);
+    background-color: var(--auth-version-tag-bg);
+    border-color: var(--auth-version-tag-border);
+  }
 }
 
 .auth-panel__form {
@@ -438,22 +474,91 @@ const formComponents = {
   }
 
   :deep(.el-input__wrapper) {
-    box-shadow: 0 0 0 1px var(--el-border-color) inset;
+    background-color: var(--auth-input-bg);
+    box-shadow: 0 0 0 1px var(--auth-input-border) inset;
     transition: all 0.2s ease;
 
     &:hover {
-      box-shadow: 0 0 0 1px var(--el-border-color-hover) inset;
+      box-shadow: 0 0 0 1px var(--auth-input-border-hover) inset;
     }
 
     &.is-focus {
-      box-shadow: 0 0 0 1px var(--el-color-primary) inset;
+      box-shadow: 0 0 0 1px var(--auth-input-border-focus) inset;
     }
   }
 
+  :deep(.el-input__inner) {
+    color: var(--auth-input-text);
+
+    &::placeholder {
+      color: var(--auth-input-placeholder);
+    }
+  }
+
+  :deep(.el-input__prefix),
+  :deep(.el-input__suffix),
+  :deep(.el-input__prefix-inner),
+  :deep(.el-input__suffix-inner) {
+    color: var(--auth-input-icon);
+  }
+
+  :deep(.el-text) {
+    color: var(--auth-inline-text);
+  }
+
+  :deep(.el-link) {
+    color: var(--auth-link);
+
+    &:hover {
+      color: var(--auth-link-hover);
+    }
+  }
+
+  :deep(.el-checkbox) {
+    color: var(--auth-checkbox-text);
+  }
+
+  :deep(.el-checkbox__label) {
+    color: inherit;
+  }
+
+  :deep(.el-button) {
+    box-shadow: var(--auth-button-shadow);
+  }
+
+  :deep(.el-button--success) {
+    box-shadow: var(--auth-button-success-shadow);
+  }
+
+  :deep(.el-button--warning) {
+    box-shadow: var(--auth-button-warning-shadow);
+  }
+
   :deep(.el-card) {
     background: transparent;
     box-shadow: none;
   }
+
+  :deep(img[alt="captchaCode"]),
+  :deep(img[alt="code"]) {
+    box-shadow: var(--auth-captcha-shadow);
+  }
+
+  :deep(.third-party-login .divider-line) {
+    background: linear-gradient(to right, transparent, var(--auth-divider), transparent);
+  }
+
+  :deep(.third-party-login .divider-text) {
+    color: var(--auth-inline-text);
+  }
+
+  :deep(.third-party-login .social-login) {
+    color: var(--auth-social-text);
+  }
+
+  :deep(.third-party-login .social-login__item:hover) {
+    background-color: var(--auth-social-hover-bg);
+  }
 }
 
 .auth-panel__footer {
@@ -461,28 +566,16 @@ const formComponents = {
   margin-top: 0.125rem;
   font-size: 0.875rem;
   text-align: center;
-  border-top: 1px solid rgba(22, 93, 255, 0.06);
+  border-top: 1px solid var(--auth-footer-border);
 
   a {
     margin-left: 0.25rem;
-    color: rgba(22, 93, 255, 0.85);
+    color: var(--auth-link);
     text-decoration: none;
     transition: color 0.2s ease;
 
     &:hover {
-      color: rgba(22, 93, 255, 1);
+      color: var(--auth-link-hover);
-    }
-  }
-
-  @media (prefers-color-scheme: dark) {
-    border-color: rgba(64, 128, 255, 0.12);
-
-    a {
-      color: rgba(140, 170, 255, 0.88);
-
-      &:hover {
-        color: rgba(160, 190, 255, 1);
-      }
     }
   }
 }