diff --git a/dashboard/src/components/auth/DiamondBg.vue b/dashboard/src/components/auth/DiamondBg.vue
index dd1df64cb..f2a44d9d5 100644
--- a/dashboard/src/components/auth/DiamondBg.vue
+++ b/dashboard/src/components/auth/DiamondBg.vue
@@ -6,7 +6,11 @@
 </template>
 
 <script setup lang="ts">
-import { onMounted, onUnmounted, ref } from "vue";
+import { onMounted, onUnmounted, ref, computed } from "vue";
+import { useCustomizerStore } from "@/stores/customizer";
+
+const customizer = useCustomizerStore();
+const isDark = computed(() => customizer.isDarkTheme);
 
 const bgEl = ref<HTMLElement | null>(null);
 const canvasEl = ref<HTMLCanvasElement | null>(null);
@@ -44,9 +48,10 @@ function draw() {
 
   const W = width;
   const H = height;
+  const dark = isDark.value;
 
   // clear
-  ctx.fillStyle = "#0A0A0C";
+  ctx.fillStyle = dark ? "#0A0A0C" : "#FFFFFF";
   ctx.fillRect(0, 0, W, H);
 
   const cols = Math.ceil(W / GRID) + 1;
@@ -56,7 +61,7 @@ function draw() {
   const my = smoothY.value;
 
   // draw static base grid (very faint)
-  ctx.strokeStyle = "rgba(255, 255, 255, 0.03)";
+  ctx.strokeStyle = dark ? "rgba(255, 255, 255, 0.03)" : "rgba(0, 49, 83, 0.03)";
   ctx.lineWidth = 0.5;
   for (let x = 0; x <= W; x += GRID) {
     ctx.beginPath();
@@ -95,11 +100,12 @@ function draw() {
 
       if (dist < ENERGY_RADIUS) {
         const t = 1 - dist / ENERGY_RADIUS;
-        // eased
         const eased = t * t * (3 - 2 * t);
-        crossAlpha = 0.05 + eased * 0.35;
+        crossAlpha = dark
+          ? 0.05 + eased * 0.35
+          : 0.04 + eased * 0.4;
         crossScale = 1.0 - eased * SINK_DEPTH;
-        crossBlue = Math.floor(eased * 180);
+        crossBlue = dark ? Math.floor(eased * 180) : 0;
       }
 
       if (crossAlpha < 0.01) continue;
@@ -107,7 +113,9 @@ function draw() {
       const halfLen = CROSS_SIZE * crossScale;
       const strokeColor = crossBlue > 0
         ? `rgba(${crossBlue * 0.3}, ${crossBlue * 0.8}, ${crossBlue}, ${crossAlpha})`
-        : `rgba(255, 255, 255, ${crossAlpha})`;
+        : dark
+          ? `rgba(255, 255, 255, ${crossAlpha})`
+          : `rgba(26, 46, 60, ${crossAlpha})`;
 
       ctx.strokeStyle = strokeColor;
       ctx.lineWidth = 0.4;
@@ -120,13 +128,21 @@ function draw() {
     }
   }
 
-  // core Cherenkov dot at exact mouse position
+  // core mouse dot at exact mouse position
   if (mx > 0 && my > 0 && mx < W && my < H) {
-    const grad = ctx.createRadialGradient(mx, my, 0, mx, my, 6);
-    grad.addColorStop(0, "rgba(0, 242, 255, 0.95)");
-    grad.addColorStop(0.3, "rgba(0, 210, 255, 0.6)");
-    grad.addColorStop(1, "rgba(0, 180, 255, 0)");
-    ctx.fillStyle = grad;
+    if (dark) {
+      const grad = ctx.createRadialGradient(mx, my, 0, mx, my, 6);
+      grad.addColorStop(0, "rgba(0, 242, 255, 0.95)");
+      grad.addColorStop(0.3, "rgba(0, 210, 255, 0.6)");
+      grad.addColorStop(1, "rgba(0, 180, 255, 0)");
+      ctx.fillStyle = grad;
+    } else {
+      const grad = ctx.createRadialGradient(mx, my, 0, mx, my, 6);
+      grad.addColorStop(0, "rgba(0, 49, 83, 0.4)");
+      grad.addColorStop(0.3, "rgba(0, 49, 83, 0.15)");
+      grad.addColorStop(1, "rgba(0, 49, 83, 0)");
+      ctx.fillStyle = grad;
+    }
     ctx.beginPath();
     ctx.arc(mx, my, 6, 0, Math.PI * 2);
     ctx.fill();
@@ -173,6 +189,11 @@ onUnmounted(() => {
   background: #0a0a0c;
 }
 
+/* Light mode: clean white */
+.v-theme--bluebusinesstheme .bg {
+  background: #FFFFFF;
+}
+
 .bg-canvas {
   position: absolute;
   inset: 0;
diff --git a/dashboard/src/components/chat/MessageList.vue b/dashboard/src/components/chat/MessageList.vue
index 71f7f3bf4..8cbe70ead 100644
--- a/dashboard/src/components/chat/MessageList.vue
+++ b/dashboard/src/components/chat/MessageList.vue
@@ -30,7 +30,7 @@
             :class="{ 'has-audio': hasAudio(msg.content.message) }"
             :style="{
               backgroundColor: 'var(--v-theme-chatMessageBubble)',
-              color: 'rgba(228, 225, 230, 0.9) !important',
+              color: '#E2E2E7 !important',
             }"
           >
             <!-- 遍历 message parts -->
@@ -55,11 +55,7 @@
               <!-- 纯文本 -->
               <pre
                 v-else-if="part.type === 'plain' && part.text"
-                style="
-                  font-family: inherit;
-                  white-space: pre-wrap;
-                  word-wrap: break-word;
-                "
+                class="bubble-text"
                 >{{ part.text }}</pre
               >
 
@@ -189,7 +185,7 @@
               class="message-bubble bot-bubble"
               :style="{
                 backgroundColor: 'var(--v-theme-chatAssistantBubble)',
-                color: 'rgba(228, 225, 230, 0.9) !important',
+                color: '#E2E2E7 !important',
               }"
             >
               <!-- Loading state -->
@@ -1255,7 +1251,7 @@ export default {
 
 .loading-text {
   font-size: 14px;
-  color: var(--v-theme-secondaryText);
+  color: var(--v-theme-on-surface-variant);
   animation: pulse 1.5s ease-in-out infinite;
 }
 
@@ -1359,7 +1355,7 @@ export default {
 
 .message-time {
   font-size: 12px;
-  color: var(--v-theme-secondaryText);
+  color: var(--v-theme-on-surface-variant);
   opacity: 0.7;
   white-space: nowrap;
 }
@@ -1367,7 +1363,7 @@ export default {
 /* Agent Stats Info Icon */
 .stats-info-icon {
   margin-left: 6px;
-  color: var(--v-theme-secondaryText);
+  color: var(--v-theme-on-surface-variant);
   opacity: 0.6;
   cursor: pointer;
   transition: opacity 0.2s ease;
@@ -1448,7 +1444,7 @@ export default {
 
 .reply-quote-text {
   font-size: 13px;
-  color: var(--v-theme-secondaryText);
+  color: var(--v-theme-on-surface-variant);
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
@@ -1470,7 +1466,7 @@ export default {
 }
 
 .user-bubble {
-  color: var(--v-theme-primaryText);
+  color: var(--v-theme-on-surface);
   padding: 12px 18px;
   font-size: 15px;
   max-width: 60%;
@@ -1479,7 +1475,7 @@ export default {
 
 .bot-bubble {
   border: 1px solid var(--v-theme-border);
-  color: var(--v-theme-primaryText);
+  color: var(--v-theme-on-surface);
   font-size: 16px;
   max-width: 100%;
   padding-left: 12px;
@@ -1625,6 +1621,11 @@ export default {
   line-height: 1.6;
 }
 
+/* Bubble text: hardcoded for debugging - #E2E2E7 = BlueBusinessDark primaryText */
+.bubble-text {
+  color: #E2E2E7 !important;
+}
+
 /* Stats Menu 样式 */
 .stats-menu-card {
   border-radius: 8px !important;
@@ -1647,14 +1648,14 @@ export default {
 
 .stats-menu-label {
   font-size: 13px;
-  color: var(--v-theme-secondaryText);
+  color: var(--v-theme-on-surface-variant);
 }
 
 .stats-menu-value {
   font-size: 13px;
   font-weight: 600;
   font-family: "Fira Code", "Consolas", monospace;
-  color: var(--v-theme-primaryText);
+  color: var(--v-theme-on-surface);
 }
 
 /* 图片预览样式 */
diff --git a/dashboard/src/components/shared/ConsoleDisplayer.vue b/dashboard/src/components/shared/ConsoleDisplayer.vue
index 0e15a8575..2fdcbd631 100644
--- a/dashboard/src/components/shared/ConsoleDisplayer.vue
+++ b/dashboard/src/components/shared/ConsoleDisplayer.vue
@@ -208,7 +208,7 @@ export default {
       }
     },
 
-    parseAnsiLog(log: string): { text: string; color: string } {
+    parseAnsiLog(log: string): { text: string; color: string; borderColor?: string } {
       // ANSI color code map
       const ansiMap: Record<string, string> = {
         "\u001b[1;34m": "#39C5BB",
@@ -219,6 +219,29 @@ export default {
         "\u001b[0m": "inherit",
         "\u001b[32m": "#69F0AE",
       };
+
+      // Content-based color differentiation: system, private, group, platform
+      const lowerLog = log.toLowerCase();
+      if (lowerLog.includes("· astrbot") || lowerLog.includes("· reactor")) {
+        // System messages: cyan-teal
+        return { text: log, color: "#00F2FF", borderColor: "system" };
+      }
+      if (lowerLog.includes("[private")) {
+        // Private messages: warm green
+        return { text: log, color: "#69F0AE", borderColor: "private" };
+      }
+      if (lowerLog.includes("[group")) {
+        // Group messages: soft periwinkle blue
+        return { text: log, color: "#8fb6d2", borderColor: "group" };
+      }
+      if (lowerLog.includes("telegram") || lowerLog.includes("discord") || lowerLog.includes("qq ") || lowerLog.includes("onebot")) {
+        // Platform adapter messages: soft purple
+        return { text: log, color: "#B39DDB", borderColor: "platform" };
+      }
+      if (lowerLog.includes("error") || lowerLog.includes("failed") || lowerLog.includes("exception")) {
+        // Error indicators keep default treatment
+      }
+
       let color = "rgba(255,255,255,0.75)";
       for (const [code, c] of Object.entries(ansiMap)) {
         if (log.startsWith(code)) {
@@ -234,7 +257,7 @@ export default {
       const ele = document.getElementById("term");
       if (!ele) return;
 
-      const { text, color } = this.parseAnsiLog(log);
+      const { text, color, borderColor } = this.parseAnsiLog(log);
 
       const line = document.createElement("div");
       line.classList.add("log-line");
@@ -242,6 +265,9 @@ export default {
       if (level) {
         line.classList.add(`log-line-${level.toLowerCase()}`);
       }
+      if (borderColor) {
+        line.classList.add(`log-line-${borderColor}`);
+      }
 
       line.innerText = text;
       line.style.color = color;
@@ -431,6 +457,20 @@ export default {
   box-shadow: inset 2px 0 0 rgba(0, 242, 255, 0.3);
 }
 
+/* Content-type left border indicators */
+:deep(.log-line-system) {
+  box-shadow: inset 3px 0 0 #00F2FF !important;
+}
+:deep(.log-line-private) {
+  box-shadow: inset 3px 0 0 #69F0AE !important;
+}
+:deep(.log-line-group) {
+  box-shadow: inset 3px 0 0 #8fb6d2 !important;
+}
+:deep(.log-line-platform) {
+  box-shadow: inset 3px 0 0 #B39DDB !important;
+}
+
 /* New entry pulse animation */
 :deep(.log-line) {
   animation: entryPulse 0.25s ease-out;
diff --git a/dashboard/src/components/shared/ReactorBg.vue b/dashboard/src/components/shared/ReactorBg.vue
index 91b5e3e34..60ae27fa2 100644
--- a/dashboard/src/components/shared/ReactorBg.vue
+++ b/dashboard/src/components/shared/ReactorBg.vue
@@ -33,7 +33,7 @@ function draw() {
   const isDark = customizer.isDarkTheme;
 
   // Background
-  ctx.fillStyle = isDark ? "#050507" : "#F2F5F8";
+  ctx.fillStyle = isDark ? "#050507" : "#FFFFFF";
   ctx.fillRect(0, 0, W, H);
 
   const cols = Math.ceil(W / GRID) + 1;
@@ -42,10 +42,10 @@ function draw() {
   const mx = smoothX;
   const my = smoothY;
 
-  // Grid lines — dark mode: faint white, light mode: faint deep-blue
+  // Grid lines — dark mode: faint white, light mode: nearly invisible
   ctx.strokeStyle = isDark
     ? "rgba(255, 255, 255, 0.025)"
-    : "rgba(26, 46, 60, 0.04)";
+    : "rgba(0, 49, 83, 0.03)";
   ctx.lineWidth = 0.5;
   for (let x = 0; x <= W; x += GRID) {
     ctx.beginPath();
diff --git a/dashboard/src/i18n/locales/en-US/core/header.json b/dashboard/src/i18n/locales/en-US/core/header.json
index 2435e580d..6712c2514 100644
--- a/dashboard/src/i18n/locales/en-US/core/header.json
+++ b/dashboard/src/i18n/locales/en-US/core/header.json
@@ -90,8 +90,7 @@
       "newUsername": "New Username (Optional)",
       "passwordHint": "Password must be at least 8 characters",
       "confirmPasswordHint": "Please enter new password again to confirm",
-      "usernameHint": "Leave blank to keep current username",
-      "defaultCredentials": "Default username: astrbot. Use `astrbot conf admin` to set your password"
+      "usernameHint": "Leave blank to keep current username"
     },
     "validation": {
       "passwordRequired": "Please enter password",
diff --git a/dashboard/src/i18n/locales/en-US/features/auth.json b/dashboard/src/i18n/locales/en-US/features/auth.json
index 199ce4c68..9bd7aa6ff 100644
--- a/dashboard/src/i18n/locales/en-US/features/auth.json
+++ b/dashboard/src/i18n/locales/en-US/features/auth.json
@@ -23,5 +23,9 @@
     "save": "Save & Reload",
     "cancel": "Cancel",
     "tooltip": "Server Configuration"
-  }
+  },
+  "presetName": "Preset Name",
+  "presetUrl": "Preset URL",
+  "addPreset": "Add Preset",
+  "autoTheme": "Auto Sync with System Theme"
 }
diff --git a/dashboard/src/i18n/locales/ru-RU/core/header.json b/dashboard/src/i18n/locales/ru-RU/core/header.json
index cfe8405a7..792641594 100644
--- a/dashboard/src/i18n/locales/ru-RU/core/header.json
+++ b/dashboard/src/i18n/locales/ru-RU/core/header.json
@@ -89,8 +89,7 @@
             "newUsername": "Новое имя пользователя (опционально)",
             "passwordHint": "Пароль должен быть не менее 8 символов",
             "confirmPasswordHint": "Введите новый пароль еще раз",
-            "usernameHint": "Оставьте пустым, если не хотите менять имя пользователя",
-            "defaultCredentials": "Логин и пароль по умолчанию: astrbot"
+            "usernameHint": "Оставьте пустым, если не хотите менять имя пользователя"
         },
         "validation": {
             "passwordRequired": "Введите пароль",
diff --git a/dashboard/src/i18n/locales/ru-RU/features/auth.json b/dashboard/src/i18n/locales/ru-RU/features/auth.json
index 61e8e8165..9a839329f 100644
--- a/dashboard/src/i18n/locales/ru-RU/features/auth.json
+++ b/dashboard/src/i18n/locales/ru-RU/features/auth.json
@@ -3,11 +3,29 @@
   "username": "Имя пользователя",
   "password": "Пароль",
   "defaultHint": "Сначала выполните `astrbot conf admin` для настройки учётной записи администратора.",
+  "shareLink": "Поделиться ссылкой",
+  "linkCopied": "Ссылка скопирована в буфер обмена",
+  "linkCopyFailed": "Не удалось скопировать ссылку",
   "logo": {
     "title": "AstrBot Звёздная Панель"
   },
   "theme": {
     "switchToDark": "Перейти на темную тему",
     "switchToLight": "Перейти на светлую тему"
-  }
+  },
+  "serverConfig": {
+    "title": "Конфигурация сервера",
+    "description": "Если бэкенд находится не на том же источнике (хост/порт), укажите полный URL здесь.",
+    "label": "Базовый URL API",
+    "placeholder": "напр. http://localhost:6185",
+    "hint": "Пусто для значения по умолчанию (относительный путь)",
+    "presetLabel": "Быстрый выбор пресета",
+    "save": "Сохранить и перезагрузить",
+    "cancel": "Отмена",
+    "tooltip": "Конфигурация сервера"
+  },
+  "presetName": "Название пресета",
+  "presetUrl": "URL пресета",
+  "addPreset": "Добавить пресет",
+  "autoTheme": "Автосинхронизация с системной темой"
 }
diff --git a/dashboard/src/i18n/locales/zh-CN/core/header.json b/dashboard/src/i18n/locales/zh-CN/core/header.json
index c70e65145..8249ef224 100644
--- a/dashboard/src/i18n/locales/zh-CN/core/header.json
+++ b/dashboard/src/i18n/locales/zh-CN/core/header.json
@@ -90,8 +90,7 @@
       "newUsername": "新用户名 (可选)",
       "passwordHint": "密码长度至少 8 位",
       "confirmPasswordHint": "请再次输入新密码以确认",
-      "usernameHint": "留空表示不修改用户名",
-      "defaultCredentials": "初始用户名：astrbot，请使用 `astrbot conf admin` 设置密码"
+      "usernameHint": "留空表示不修改用户名"
     },
     "validation": {
       "passwordRequired": "请输入密码",
diff --git a/dashboard/src/i18n/locales/zh-CN/features/auth.json b/dashboard/src/i18n/locales/zh-CN/features/auth.json
index 5bc7fbb17..3a54761d9 100644
--- a/dashboard/src/i18n/locales/zh-CN/features/auth.json
+++ b/dashboard/src/i18n/locales/zh-CN/features/auth.json
@@ -23,5 +23,9 @@
     "save": "保存并刷新",
     "cancel": "取消",
     "tooltip": "服务器配置"
-  }
+  },
+  "presetName": "预设名称",
+  "presetUrl": "预设地址",
+  "addPreset": "添加预设",
+  "autoTheme": "自动跟随系统主题"
 }
diff --git a/dashboard/src/layouts/full/FullLayout.vue b/dashboard/src/layouts/full/FullLayout.vue
index abb4afe4b..46c474cb1 100644
--- a/dashboard/src/layouts/full/FullLayout.vue
+++ b/dashboard/src/layouts/full/FullLayout.vue
@@ -52,7 +52,7 @@ const checkMigration = async (): Promise<boolean> => {
       return true;
     }
   } catch (error) {
-    console.error("Failed to check migration status:", error);
+    console.warn("Failed to check migration status (backend may not be running):", error);
   }
   return false;
 };
@@ -78,7 +78,7 @@ const maybeShowFirstNotice = async () => {
 
     localStorage.setItem(FIRST_NOTICE_SEEN_KEY, "1");
   } catch (error) {
-    console.error("Failed to load first notice:", error);
+    console.warn("Failed to load first notice (backend may not be running):", error);
   }
 };
 
diff --git a/dashboard/src/layouts/full/vertical-header/VerticalHeader.vue b/dashboard/src/layouts/full/vertical-header/VerticalHeader.vue
index a8bcaf6c6..b2354adfe 100644
--- a/dashboard/src/layouts/full/vertical-header/VerticalHeader.vue
+++ b/dashboard/src/layouts/full/vertical-header/VerticalHeader.vue
@@ -1201,10 +1201,6 @@ const isChristmas = computed(() => {
             class="mb-3"
           />
         </v-form>
-
-        <div class="text-caption text-medium-emphasis mt-2">
-          {{ t("core.header.accountDialog.form.defaultCredentials") }}
-        </div>
       </v-card-text>
 
       <v-divider />
diff --git a/dashboard/src/types/themeTypes/ThemeType.ts b/dashboard/src/types/themeTypes/ThemeType.ts
index 3b6b2387b..010a7a1c3 100644
--- a/dashboard/src/types/themeTypes/ThemeType.ts
+++ b/dashboard/src/types/themeTypes/ThemeType.ts
@@ -5,6 +5,7 @@ export type ThemeTypes = {
   colors: {
     primary?: string;
     secondary?: string;
+    tertiary?: string;
     info?: string;
     success?: string;
     accent?: string;
@@ -23,6 +24,7 @@ export type ThemeTypes = {
     border?: string;
     inputBorder?: string;
     containerBg?: string;
+    "on-surface-variant-bg"?: string;
     surface?: string;
     background?: string;
     overlay?: string;
@@ -47,6 +49,7 @@ export type ThemeTypes = {
     "on-surface"?: string;
     "surface-variant"?: string;
     surfaceTint?: string;
+    outline?: string;
     "outline-variant"?: string;
     "inverse-surface"?: string;
     "inverse-on-surface"?: string;
diff --git a/dashboard/src/views/WelcomePage.vue b/dashboard/src/views/WelcomePage.vue
index db803c425..5e38ab6a5 100644
--- a/dashboard/src/views/WelcomePage.vue
+++ b/dashboard/src/views/WelcomePage.vue
@@ -662,13 +662,12 @@ watch(showProviderDialog, async (visible, wasVisible) => {
   font-family: "JetBrains Mono", "Fira Code", monospace !important;
   font-size: clamp(1.8rem, 4vw, 3rem) !important;
   font-weight: 700 !important;
-  /* Restrained precision — readable gray, not flashy neon */
-  color: rgba(228, 225, 230, 0.85) !important;
+  color: var(--v-theme-on-surface) !important;
   letter-spacing: 0.5px;
   position: relative;
   padding-left: 16px;
   animation: welcomeFadeIn 0.8s ease-out both;
-  /* 2px thin precision tick mark (not a glowing bar) */
+  /* Dark: cyan tick mark; Light: prussian blue tick mark */
   &::before {
     content: "";
     position: absolute;
@@ -677,7 +676,7 @@ watch(showProviderDialog, async (visible, wasVisible) => {
     transform: translateY(-50%);
     width: 2px;
     height: 55%;
-    background: rgba(0, 242, 255, 0.45);
+    background: rgba(var(--v-theme-primary), 0.45);
     border-radius: 1px;
   }
 }
@@ -685,7 +684,7 @@ watch(showProviderDialog, async (visible, wasVisible) => {
 .welcome-page .text-subtitle-1 {
   font-family: "JetBrains Mono", monospace !important;
   font-size: 0.9rem !important;
-  color: rgba(228, 225, 230, 0.4) !important;
+  color: var(--v-theme-on-surface-variant) !important;
   animation: welcomeFadeIn 0.8s ease-out 0.3s both;
   letter-spacing: 0.3px;
 }
@@ -693,11 +692,11 @@ watch(showProviderDialog, async (visible, wasVisible) => {
 .welcome-page .text-h3 {
   font-family: "JetBrains Mono", monospace !important;
   font-weight: 600 !important;
-  color: rgba(228, 225, 230, 0.75) !important;
+  color: var(--v-theme-on-surface) !important;
   font-size: 1rem !important;
   letter-spacing: 0.5px;
   text-transform: uppercase;
-  border-left: 2px solid rgba(0, 242, 255, 0.3) !important;
+  border-left: 2px solid rgba(var(--v-theme-primary), 0.3) !important;
   padding-left: 10px !important;
 }