移除未使用的底部控制栏高度变量

webapp/src/components/ui/calendar/Calendar.vue

@@ -229,27 +229,65 @@ const panelPos = ref({ x: 0, y: 0 })
 const isDragging = ref(false)
 const dragStart = ref({ x: 0, y: 0 })
 
-// 初始化面板位置（移动端居中，桌面端右上角）
-const initPanelPosition = () => {
-  if (typeof window !== 'undefined') {
+// 计算图片实际显示区域（与ImageView保持一致）
+const getImageDisplayBounds = () => {
   const windowWidth = window.innerWidth
   const windowHeight = window.innerHeight
-    const isMobile = windowWidth < 640 // sm breakpoint
+  
+  // 必应图片通常是16:9或类似宽高比
+  const imageAspectRatio = 16 / 9
+  const windowAspectRatio = windowWidth / windowHeight
+  
+  let displayWidth: number
+  let displayHeight: number
+  let offsetX: number
+  let offsetY: number
+  
+  if (windowAspectRatio > imageAspectRatio) {
+    // 窗口更宽，图片上下占满，左右留黑边
+    displayHeight = windowHeight
+    displayWidth = displayHeight * imageAspectRatio
+    offsetX = (windowWidth - displayWidth) / 2
+    offsetY = 0
+  } else {
+    // 窗口更高，图片左右占满，上下留黑边
+    displayWidth = windowWidth
+    displayHeight = displayWidth / imageAspectRatio
+    offsetX = 0
+    offsetY = (windowHeight - displayHeight) / 2
+  }
+  
+  return {
+    left: offsetX,
+    top: offsetY,
+    right: offsetX + displayWidth,
+    bottom: offsetY + displayHeight,
+    width: displayWidth,
+    height: displayHeight
+  }
+}
+
+// 初始化面板位置（移动端居中，桌面端右上角，限制在图片显示区域内）
+const initPanelPosition = () => {
+  if (typeof window !== 'undefined') {
+    const bounds = getImageDisplayBounds()
+    const isMobile = window.innerWidth < 640 // sm breakpoint
     
     if (isMobile) {
-      // 移动端：居中显示
+      // 移动端：在图片区域内居中显示
+      const panelWidth = Math.min(bounds.width - 16, window.innerWidth - 16)
       const panelHeight = 580 // 估计高度
       panelPos.value = {
-        x: 8,
-        y: Math.max(8, (windowHeight - panelHeight) / 2)
+        x: Math.max(bounds.left, bounds.left + (bounds.width - panelWidth) / 2),
+        y: Math.max(bounds.top + 8, bounds.top + (bounds.height - panelHeight) / 2)
       }
     } else {
-      // 桌面端：右上角
-      const panelWidth = Math.min(420, windowWidth * 0.9)
+      // 桌面端：在图片区域右上角
+      const panelWidth = Math.min(420, bounds.width * 0.9)
       const panelHeight = 600
       panelPos.value = {
-        x: windowWidth - panelWidth - 40,
-        y: Math.min(80, (windowHeight - panelHeight) / 2)
+        x: bounds.right - panelWidth - 40,
+        y: Math.max(bounds.top + 80, bounds.top + (bounds.height - panelHeight) / 2)
       }
     }
   }
@@ -397,15 +435,19 @@ const onDrag = (e: MouseEvent | TouchEvent) => {
   const newX = clientX - dragStart.value.x
   const newY = clientY - dragStart.value.y
   
-  // 限制在视口内
+  // 限制在图片实际显示区域内
   if (calendarPanel.value) {
     const rect = calendarPanel.value.getBoundingClientRect()
-    const maxX = window.innerWidth - rect.width
-    const maxY = window.innerHeight - rect.height
+    const bounds = getImageDisplayBounds()
+    
+    const minX = bounds.left
+    const maxX = bounds.right - rect.width
+    const minY = bounds.top
+    const maxY = bounds.bottom - rect.height
     
     panelPos.value = {
-      x: Math.max(0, Math.min(newX, maxX)),
-      y: Math.max(0, Math.min(newY, maxY))
+      x: Math.max(minX, Math.min(newX, maxX)),
+      y: Math.max(minY, Math.min(newY, maxY))
     }
   }
 }

webapp/src/views/Home.vue

@@ -6,42 +6,52 @@
         <div class="w-12 h-12 border-4 border-white/20 border-t-white rounded-full animate-spin"></div>
       </div>
       
-      <div v-else-if="todayImage" class="relative h-full w-full group">
+      <div v-else-if="latestImage" class="relative h-full w-full group">
         <!-- 背景图片 -->
         <div class="absolute inset-0">
           <img 
-            :src="getTodayImageUrl()" 
-            :alt="todayImage.title || 'Today\'s Bing Image'"
+            :src="getLatestImageUrl()" 
+            :alt="latestImage.title || 'Latest Bing Image'"
             class="w-full h-full object-cover"
           />
           <div class="absolute inset-0 bg-gradient-to-t from-black/80 via-black/20 to-transparent"></div>
         </div>
 
+        <!-- 更新提示（仅在非今日图片时显示） - 右上角简约徽章 -->
+        <div v-if="!isToday" class="absolute top-4 right-4 md:top-8 md:right-8 z-20">
+          <div class="flex items-center gap-1.5 px-3 py-1.5 bg-black/30 backdrop-blur-md rounded-full border border-white/10 text-white/70 text-xs">
+            <svg class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"></path>
+            </svg>
+            <span>下次更新 {{ nextUpdateTime }}</span>
+          </div>
+        </div>
+
         <!-- 内容叠加层 -->
         <div class="relative h-full flex flex-col justify-end p-8 md:p-16 z-10">
           <div class="max-w-4xl space-y-4 transform transition-transform duration-500 group-hover:translate-y-[-10px]">
             <div class="inline-block px-4 py-2 bg-white/10 backdrop-blur-md rounded-full text-white/90 text-sm font-medium">
-              今日精选 · {{ formatDate(todayImage.date) }}
+              {{ isToday ? '今日精选' : '最新图片' }} · {{ formatDate(latestImage.date) }}
             </div>
             
             <h1 class="text-4xl md:text-6xl font-bold text-white leading-tight drop-shadow-2xl">
-              {{ todayImage.title || '必应每日一图' }}
+              {{ latestImage.title || '必应每日一图' }}
             </h1>
             
-            <p v-if="todayImage.copyright" class="text-lg md:text-xl text-white/80 max-w-2xl">
-              {{ todayImage.copyright }}
+            <p v-if="latestImage.copyright" class="text-lg md:text-xl text-white/80 max-w-2xl">
+              {{ latestImage.copyright }}
             </p>
 
             <div class="flex gap-4 pt-4">
               <button 
-                @click="viewImage(todayImage.date!)"
+                @click="viewImage(latestImage.date!)"
                 class="px-6 py-3 bg-white text-gray-900 rounded-lg font-semibold hover:bg-white/90 transition-all transform hover:scale-105 shadow-xl"
               >
                 查看大图
               </button>
               <button 
-                v-if="todayImage.copyrightlink"
-                @click="openCopyrightLink(todayImage.copyrightlink)"
+                v-if="latestImage.copyrightlink"
+                @click="openCopyrightLink(latestImage.copyrightlink)"
                 class="px-6 py-3 bg-white/10 backdrop-blur-md text-white rounded-lg font-semibold hover:bg-white/20 transition-all border border-white/30"
               >
                 了解更多
@@ -235,7 +245,7 @@
 
 <script setup lang="ts">
 import { ref, computed, onMounted, onUnmounted, watch } from 'vue'
-import { useTodayImage, useImageList } from '@/composables/useImages'
+import { useImageList } from '@/composables/useImages'
 import { bingPaperApi } from '@/lib/api-service'
 import { useRouter } from 'vue-router'
 import {
@@ -248,12 +258,62 @@ import {
 
 const router = useRouter()
 
-// 获取今日图片
-const { image: todayImage, loading: todayLoading } = useTodayImage()
+// 顶部最新图片（独立加载，不受筛选影响）
+const latestImage = ref<any>(null)
+const todayLoading = ref(false)
 
-// 获取图片列表（使用服务端分页和筛选，每页15张）
+// 历史图片列表（使用服务端分页和筛选，每页15张）
 const { images, loading, hasMore, loadMore, filterByMonth } = useImageList(15)
 
+// 加载顶部最新图片
+const loadLatestImage = async () => {
+  todayLoading.value = true
+  try {
+    const params = { page: 1, page_size: 1 }
+    const result = await bingPaperApi.getImages(params)
+    if (result.length > 0) {
+      latestImage.value = result[0]
+    }
+  } catch (error) {
+    console.error('Failed to load latest image:', error)
+  } finally {
+    todayLoading.value = false
+  }
+}
+
+// 初始化加载顶部图片
+onMounted(() => {
+  loadLatestImage()
+})
+
+// 判断最新图片是否为今天的图片
+const isToday = computed(() => {
+  if (!latestImage.value?.date) return false
+  const imageDate = new Date(latestImage.value.date).toDateString()
+  const today = new Date().toDateString()
+  return imageDate === today
+})
+
+// 计算下次更新时间提示
+const nextUpdateTime = computed(() => {
+  const now = new Date()
+  const hours = now.getHours()
+  
+  // 更新时间点：8:20, 12:20, 16:20, 20:20, 0:20, 4:20
+  const updateHours = [0, 4, 8, 12, 16, 20]
+  const updateMinute = 20
+  
+  // 找到下一个更新时间点
+  for (const hour of updateHours) {
+    if (hours < hour || (hours === hour && now.getMinutes() < updateMinute)) {
+      return `${String(hour).padStart(2, '0')}:${String(updateMinute).padStart(2, '0')}`
+    }
+  }
+  
+  // 如果今天没有下一个更新点，返回明天的第一个更新点
+  return `次日 00:20`
+})
+
 // 筛选相关状态
 const selectedYear = ref('')
 const selectedMonth = ref('')
@@ -267,11 +327,11 @@ let observer: IntersectionObserver | null = null
 const loadMoreTrigger = ref<HTMLElement | null>(null)
 let loadMoreObserver: IntersectionObserver | null = null
 
-// 计算可用的年份列表（基于当前日期生成，从2020年到当前年份）
+// 计算可用的年份列表（基于当前日期生成，计算前20年）
 const availableYears = computed(() => {
   const currentYear = new Date().getFullYear()
   const years: number[] = []
-  for (let year = currentYear; year >= 2020; year--) {
+  for (let year = currentYear; year >= currentYear - 20; year--) {
     years.push(year)
   }
   return years
@@ -424,8 +484,10 @@ const setupLoadMoreObserver = () => {
   }
 }
 
-// 初始化时设置无限滚动
+// 初始化
 onMounted(() => {
+  loadLatestImage()
+  
   if (images.value.length > 0) {
     imageVisibility.value = new Array(images.value.length).fill(false)
     setTimeout(() => {
@@ -456,9 +518,10 @@ const formatDate = (dateStr?: string) => {
   })
 }
 
-// 获取今日图片 URL
-const getTodayImageUrl = () => {
-  return bingPaperApi.getTodayImageUrl('UHD', 'jpg')
+// 获取最新图片 URL（顶部大图使用UHD高清）
+const getLatestImageUrl = () => {
+  if (!latestImage.value?.date) return ''
+  return bingPaperApi.getImageUrlByDate(latestImage.value.date, 'UHD', 'jpg')
 }
 
 // 获取图片 URL（缩略图 - 使用较小分辨率节省流量）
@@ -487,3 +550,25 @@ const openCopyrightLink = (link: string) => {
   overflow: hidden;
 }
 </style>
+
+<style>
+/* 隐藏滚动条但保持滚动功能 */
+body {
+  overflow-y: scroll;
+  scrollbar-width: none; /* Firefox */
+  -ms-overflow-style: none; /* IE 10+ */
+}
+
+body::-webkit-scrollbar {
+  display: none; /* Chrome, Safari, Opera */
+}
+
+html {
+  scrollbar-width: none; /* Firefox */
+  -ms-overflow-style: none; /* IE 10+ */
+}
+
+html::-webkit-scrollbar {
+  display: none; /* Chrome, Safari, Opera */
+}
+</style>

webapp/src/views/ImageView.vue

@@ -43,9 +43,16 @@
       <div 
         v-if="showInfo && !showCalendar"
         ref="infoPanel"
-        class="fixed w-[90%] max-w-md bg-black/40 backdrop-blur-lg rounded-xl p-4 transform transition-all duration-300 z-10 select-none"
-        :style="{ left: infoPanelPos.x + 'px', top: infoPanelPos.y + 'px' }"
-        :class="{ 'opacity-100': showInfo && !showCalendar, 'opacity-0 pointer-events-none': showCalendar }"
+        class="fixed w-[90%] max-w-md bg-black/40 backdrop-blur-lg rounded-xl p-4 z-20 select-none"
+        :class="{ 
+          'opacity-100': showInfo && !showCalendar, 
+          'opacity-0 pointer-events-none': showCalendar,
+          'transition-opacity duration-300': !isDragging
+        }"
+        :style="{ 
+          transform: `translate(${infoPanelPos.x}px, ${infoPanelPos.y}px)`,
+          willChange: isDragging ? 'transform' : 'auto'
+        }"
       >
         <!-- 拖动手柄 -->
         <div 
@@ -208,16 +215,56 @@ const infoPanel = ref<HTMLElement | null>(null)
 const infoPanelPos = ref({ x: 0, y: 0 })
 const isDragging = ref(false)
 const dragStart = ref({ x: 0, y: 0 })
+let animationFrameId: number | null = null
 
-// 初始化浮窗位置（居中偏下）
-const initPanelPosition = () => {
-  if (typeof window !== 'undefined') {
+// 计算图片实际显示区域（考虑图片宽高比和object-contain）
+const getImageDisplayBounds = () => {
   const windowWidth = window.innerWidth
   const windowHeight = window.innerHeight
-    const panelWidth = Math.min(windowWidth * 0.9, 448) // max-w-md = 448px
+  
+  // 必应图片通常是16:9或类似宽高比
+  // 使用UHD分辨率: 1920x1080 (16:9)
+  const imageAspectRatio = 16 / 9
+  const windowAspectRatio = windowWidth / windowHeight
+  
+  let displayWidth: number
+  let displayHeight: number
+  let offsetX: number
+  let offsetY: number
+  
+  if (windowAspectRatio > imageAspectRatio) {
+    // 窗口更宽，图片上下占满，左右留黑边
+    displayHeight = windowHeight
+    displayWidth = displayHeight * imageAspectRatio
+    offsetX = (windowWidth - displayWidth) / 2
+    offsetY = 0
+  } else {
+    // 窗口更高，图片左右占满，上下留黑边
+    displayWidth = windowWidth
+    displayHeight = displayWidth / imageAspectRatio
+    offsetX = 0
+    offsetY = (windowHeight - displayHeight) / 2
+  }
+  
+  return {
+    left: offsetX,
+    top: offsetY,
+    right: offsetX + displayWidth,
+    bottom: offsetY + displayHeight,
+    width: displayWidth,
+    height: displayHeight
+  }
+}
+
+// 初始化浮窗位置（居中偏下，限制在图片显示区域内）
+const initPanelPosition = () => {
+  if (typeof window !== 'undefined') {
+    const bounds = getImageDisplayBounds()
+    const panelWidth = Math.min(bounds.width * 0.9, 448) // max-w-md = 448px
+    
     infoPanelPos.value = {
-      x: (windowWidth - panelWidth) / 2,
-      y: windowHeight - 200 // 距底部200px
+      x: bounds.left + (bounds.width - panelWidth) / 2,
+      y: Math.max(bounds.top, bounds.bottom - 280) // 距底部280px，避免与控制栏重叠
     }
   }
 }
@@ -235,42 +282,61 @@ const startDrag = (e: MouseEvent | TouchEvent) => {
     y: clientY - infoPanelPos.value.y
   }
   
-  document.addEventListener('mousemove', onDrag)
+  document.addEventListener('mousemove', onDrag, { passive: false })
   document.addEventListener('mouseup', stopDrag)
   document.addEventListener('touchmove', onDrag, { passive: false })
   document.addEventListener('touchend', stopDrag)
 }
 
-// 拖动中
+// 拖动中 - 使用 requestAnimationFrame 优化性能
 const onDrag = (e: MouseEvent | TouchEvent) => {
   if (!isDragging.value) return
   
-  if (e instanceof TouchEvent) {
   e.preventDefault()
+  
+  // 取消之前的动画帧
+  if (animationFrameId !== null) {
+    cancelAnimationFrame(animationFrameId)
   }
   
+  // 使用 requestAnimationFrame 进行节流优化
+  animationFrameId = requestAnimationFrame(() => {
     const clientX = e instanceof MouseEvent ? e.clientX : e.touches[0].clientX
     const clientY = e instanceof MouseEvent ? e.clientY : e.touches[0].clientY
     
     const newX = clientX - dragStart.value.x
     const newY = clientY - dragStart.value.y
     
-  // 限制在视口内
+    // 限制在图片实际显示区域内，考虑底部控制栏高度（约80px）
     if (infoPanel.value) {
       const rect = infoPanel.value.getBoundingClientRect()
-    const maxX = window.innerWidth - rect.width
-    const maxY = window.innerHeight - rect.height
+      const bounds = getImageDisplayBounds()
+      
+      const minX = bounds.left
+      const maxX = bounds.right - rect.width
+      const minY = bounds.top
+      const maxY = bounds.bottom - rect.height - 80 // 预留底部控制栏空间
       
       infoPanelPos.value = {
-      x: Math.max(0, Math.min(newX, maxX)),
-      y: Math.max(0, Math.min(newY, maxY))
+        x: Math.max(minX, Math.min(newX, maxX)),
+        y: Math.max(minY, Math.min(newY, maxY))
       }
     }
+    
+    animationFrameId = null
+  })
 }
 
 // 停止拖动
 const stopDrag = () => {
   isDragging.value = false
+  
+  // 清理动画帧
+  if (animationFrameId !== null) {
+    cancelAnimationFrame(animationFrameId)
+    animationFrameId = null
+  }
+  
   document.removeEventListener('mousemove', onDrag)
   document.removeEventListener('mouseup', stopDrag)
   document.removeEventListener('touchmove', onDrag)
@@ -430,6 +496,11 @@ onUnmounted(() => {
     document.removeEventListener('mouseup', stopDrag)
     document.removeEventListener('touchmove', onDrag)
     document.removeEventListener('touchend', stopDrag)
+    
+    // 清理动画帧
+    if (animationFrameId !== null) {
+      cancelAnimationFrame(animationFrameId)
+    }
   }
 })
 </script>