新增: 相册展示模块（左侧幻灯片+进度条+目录选择）

- 左侧固定卡片展示照片幻灯片，淡入淡出切换
- 进度条动画显示当前照片剩余时间
- 设置窗口支持选择图片目录和切换间隔(5/10/15/20/30/60秒)
- Win32 SHBrowseForFolderW 目录选择对话框
- Go 端管理幻灯片状态，按间隔推送照片 data URI

config.go

@@ -61,6 +61,8 @@ type Config struct {
 	HideZodiac      bool          `json:"hideZodiac"`
 	HideAINews      bool          `json:"hideAINews"`
 	ShowSeconds     bool          `json:"showSeconds"`
+	PhotoDir        string        `json:"photoDir"`
+	PhotoInterval   int           `json:"photoInterval"`
 	KnowledgeKeyword   string        `json:"knowledgeKeyword"`
 	KnowledgePrompt    string        `json:"knowledgePrompt"`
 	HideKnowledge      bool          `json:"hideKnowledge"`

dialog.go

@@ -12,6 +12,13 @@ var (
 	comdlg32             = windows.NewLazySystemDLL("comdlg32.dll")
 	procGetOpenFileNameW  = comdlg32.NewProc("GetOpenFileNameW")
 	procChooseColorW      = comdlg32.NewProc("ChooseColorW")
+
+	shell32                 = windows.NewLazySystemDLL("shell32.dll")
+	procSHBrowseForFolderW  = shell32.NewProc("SHBrowseForFolderW")
+	procSHGetPathFromIDListW = shell32.NewProc("SHGetPathFromIDListW")
+
+	ole32dll          = windows.NewLazySystemDLL("ole32.dll")
+	procCoTaskMemFree = ole32dll.NewProc("CoTaskMemFree")
 )
 
 func slicePtr(s interface{}) uintptr {
@@ -117,3 +124,34 @@ func colorPickerDialog(owner uintptr, initialColor string) string {
 	b := (cc.rgbResult >> 16) & 0xFF
 	return fmt.Sprintf("#%02x%02x%02x", r, g, b)
 }
+
+func browseForFolderDialog(owner uintptr) string {
+	title, _ := windows.UTF16PtrFromString("选择图片目录")
+	var displayName [260]uint16
+
+	bi := struct {
+		HwndOwner      uintptr
+		PidlRoot       uintptr
+		PszDisplayName uintptr
+		LpszTitle      uintptr
+		UlFlags        uint32
+		LpFn           uintptr
+		LParam         uintptr
+		IImage         int32
+	}{
+		HwndOwner:      owner,
+		PszDisplayName: uintptr(unsafe.Pointer(&displayName[0])),
+		LpszTitle:      uintptr(unsafe.Pointer(title)),
+		UlFlags:        0x00000001 | 0x00000040,
+	}
+
+	pidl, _, _ := procSHBrowseForFolderW.Call(uintptr(unsafe.Pointer(&bi)))
+	if pidl == 0 {
+		return ""
+	}
+	defer procCoTaskMemFree.Call(pidl)
+
+	var path [260]uint16
+	procSHGetPathFromIDListW.Call(pidl, uintptr(unsafe.Pointer(&path[0])))
+	return windows.UTF16ToString(path[:])
+}

photo.go

@@ -0,0 +1,166 @@
+package main
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"sync"
+	"time"
+)
+
+var (
+	photoMu    sync.Mutex
+	photoFiles []string
+	photoIdx   int
+	photoDir   string
+	photoStop  chan struct{}
+	photoDone  chan struct{}
+)
+
+func scanPhotoDir(dir string) []string {
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return nil
+	}
+	var files []string
+	for _, e := range entries {
+		if e.IsDir() {
+			continue
+		}
+		ext := strings.ToLower(filepath.Ext(e.Name()))
+		switch ext {
+		case ".jpg", ".jpeg", ".png", ".bmp", ".webp", ".gif":
+			files = append(files, e.Name())
+		}
+	}
+	sort.Strings(files)
+	return files
+}
+
+func photoToDataURI(dir, name string) string {
+	path := filepath.Join(dir, name)
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return ""
+	}
+	ext := strings.ToLower(filepath.Ext(name))
+	mime := "image/jpeg"
+	switch ext {
+	case ".png":
+		mime = "image/png"
+	case ".gif":
+		mime = "image/gif"
+	case ".webp":
+		mime = "image/webp"
+	case ".bmp":
+		mime = "image/bmp"
+	}
+	return fmt.Sprintf("data:%s;base64,%s", mime, base64.StdEncoding.EncodeToString(data))
+}
+
+func pushCurrentPhoto(interval int) {
+	photoMu.Lock()
+	files := photoFiles
+	idx := photoIdx
+	dir := photoDir
+	photoMu.Unlock()
+
+	if len(files) == 0 || dir == "" {
+		evalJS(`if(window.updatePhotoFromGo) updatePhotoFromGo(null)`)
+		return
+	}
+	if idx >= len(files) {
+		idx = 0
+	}
+
+	src := photoToDataURI(dir, files[idx])
+	if src == "" {
+		return
+	}
+
+	data, _ := json.Marshal(map[string]interface{}{
+		"src":      src,
+		"counter":  fmt.Sprintf("%d / %d", idx+1, len(files)),
+		"interval": interval,
+	})
+	evalJS(fmt.Sprintf(`if(window.updatePhotoFromGo) updatePhotoFromGo(%s)`, string(data)))
+}
+
+func startPhotoLoop() {
+	cfg := loadConfig()
+	if cfg.PhotoDir == "" {
+		return
+	}
+
+	interval := cfg.PhotoInterval
+	if interval <= 0 {
+		interval = 15
+	}
+
+	files := scanPhotoDir(cfg.PhotoDir)
+	if len(files) == 0 {
+		log.Println("相册: 目录为空或无图片")
+		return
+	}
+
+	photoMu.Lock()
+	photoDir = cfg.PhotoDir
+	photoFiles = files
+	photoIdx = 0
+	stop := make(chan struct{})
+	done := make(chan struct{})
+	photoStop = stop
+	photoDone = done
+	photoMu.Unlock()
+
+	log.Printf("相册: 共 %d 张, 间隔 %ds", len(files), interval)
+	pushCurrentPhoto(interval)
+
+	go func() {
+		ticker := time.NewTicker(time.Duration(interval) * time.Second)
+		defer func() {
+			ticker.Stop()
+			close(done)
+		}()
+		for {
+			select {
+			case <-ticker.C:
+				photoMu.Lock()
+				if len(photoFiles) > 0 {
+					photoIdx = (photoIdx + 1) % len(photoFiles)
+				}
+				photoMu.Unlock()
+				pushCurrentPhoto(interval)
+			case <-stop:
+				return
+			}
+		}
+	}()
+}
+
+func stopPhotoLoop() {
+	photoMu.Lock()
+	stop := photoStop
+	done := photoDone
+	photoStop = nil
+	photoDone = nil
+	photoMu.Unlock()
+
+	if stop != nil {
+		close(stop)
+	}
+	if done != nil {
+		<-done
+	}
+}
+
+func restartPhotoLoop() {
+	stopPhotoLoop()
+	evalJS(`if(window.updatePhotoFromGo) updatePhotoFromGo(null)`)
+	startPhotoLoop()
+}

settings.go

@@ -138,6 +138,8 @@ func openSettingsWindow() {
 				"imagePath":       cfg.ImagePath,
 				"showSeconds":     cfg.ShowSeconds,
 				"ainewsCard":      !cfg.HideAINews,
+				"photoDir":        cfg.PhotoDir,
+				"photoInterval":   cfg.PhotoInterval,
 			})
 			return string(data)
 		})
@@ -364,6 +366,40 @@ func openSettingsWindow() {
 			return ""
 		})
 
+		w.Bind("pickPhotoDir", func() string {
+			hwnd := uintptr(w.Window())
+			dir := browseForFolderDialog(hwnd)
+			if dir == "" {
+				return ""
+			}
+			cfg := loadConfig()
+			cfg.PhotoDir = dir
+			if cfg.PhotoInterval <= 0 {
+				cfg.PhotoInterval = 15
+			}
+			saveConfig(cfg)
+			restartPhotoLoop()
+			return dir
+		})
+
+		w.Bind("clearPhotoDir", func() string {
+			cfg := loadConfig()
+			cfg.PhotoDir = ""
+			saveConfig(cfg)
+			restartPhotoLoop()
+			return ""
+		})
+
+		w.Bind("savePhotoInterval", func(val int) string {
+			cfg := loadConfig()
+			cfg.PhotoInterval = val
+			saveConfig(cfg)
+			if cfg.PhotoDir != "" {
+				restartPhotoLoop()
+			}
+			return ""
+		})
+
 		w.SetHtml(settingsHTML)
 
 		hwnd := uintptr(w.Window())

systray.go

@@ -53,6 +53,7 @@ func onSystrayReady() {
 	go aiNewsLoop()
 	go bingWallpaperLoop()
 	go knowledgeLoop()
+	go startPhotoLoop()
 }
 
 func startWebView() {

web/overlay.html

@@ -366,6 +366,55 @@ body.hide-ainews #card-ainews,
 body.hide-ainews #info .ainews-section { display: none !important; }
 body.hide-knowledge #card-knowledge,
 body.hide-knowledge #info .knowledge-section { display: none !important; }
+
+/* ===== 相册 ===== */
+#card-photo {
+  position: fixed;
+  top: 40px;
+  left: 40px;
+  width: calc(50vw - 80px);
+  z-index: 10;
+  padding: 16px;
+}
+.photo-wrap {
+  position: relative;
+  border-radius: 12px;
+  overflow: hidden;
+}
+#card-photo img {
+  width: 100%;
+  max-height: 450px;
+  object-fit: cover;
+  display: block;
+  border-radius: 12px;
+  transition: opacity 0.5s ease;
+}
+.photo-info {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  padding: 20px 14px 10px;
+  background: linear-gradient(transparent, rgba(0,0,0,0.5));
+}
+.photo-counter {
+  font-size: 11px;
+  opacity: 0.7;
+  display: block;
+  margin-bottom: 6px;
+}
+.photo-progress {
+  height: 3px;
+  background: rgba(255,255,255,0.15);
+  border-radius: 2px;
+  overflow: hidden;
+}
+.photo-progress-bar {
+  height: 100%;
+  width: 0%;
+  background: rgba(255,255,255,0.6);
+  border-radius: 2px;
+}
 </style>
 </head>
 <body class="layout-{{LAYOUT}}">
@@ -429,6 +478,16 @@ body.hide-knowledge #info .knowledge-section { display: none !important; }
   </div>
 </div>
 
+<div id="card-photo" class="card" style="display:none">
+  <div class="photo-wrap">
+    <img id="photoImg" src="" alt="">
+    <div class="photo-info">
+      <span class="photo-counter" id="photoCounter"></span>
+      <div class="photo-progress"><div class="photo-progress-bar" id="photoProgress"></div></div>
+    </div>
+  </div>
+</div>
+
 <div id="author">绝尘</div>
 
 <script>
@@ -663,6 +722,31 @@ window.updateWeatherFromGo=function(data){
 
 updateTime();
 setInterval(updateTime,1000);
+
+window.updatePhotoFromGo=function(data){
+  if(typeof data==='string') data=JSON.parse(data);
+  var card=document.getElementById('card-photo');
+  if(!card) return;
+  if(!data||!data.src){card.style.display='none';return;}
+  card.style.display='';
+  var img=document.getElementById('photoImg');
+  var counter=document.getElementById('photoCounter');
+  var bar=document.getElementById('photoProgress');
+  img.style.opacity='0';
+  setTimeout(function(){
+    img.src=data.src;
+    img.onload=function(){img.style.opacity='1';};
+  },300);
+  if(data.counter) counter.textContent=data.counter;
+  bar.style.transition='none';
+  bar.style.width='0%';
+  requestAnimationFrame(function(){
+    requestAnimationFrame(function(){
+      bar.style.transition='width '+(data.interval||15)+'s linear';
+      bar.style.width='100%';
+    });
+  });
+};
 </script>
 </body>
 </html>

web/settings.html

@@ -330,6 +330,31 @@ input[type="text"]:focus { border-color: var(--input-border-focus); }
   </div>
 </div>
 
+<!-- 相册 -->
+<div class="section">
+  <div class="section-label">相册</div>
+  <div class="card">
+    <div class="item">
+      <div class="item-desc" id="photoDirDisplay">未选择目录</div>
+      <div class="btn-group">
+        <button class="btn" id="btnPickPhotoDir">选择目录</button>
+        <button class="btn btn-sm" id="btnClearPhotoDir" style="display:none">清除</button>
+      </div>
+    </div>
+    <div class="item">
+      <div class="item-label">切换间隔</div>
+      <select id="photoInterval">
+        <option value="5">5 秒</option>
+        <option value="10">10 秒</option>
+        <option value="15" selected>15 秒</option>
+        <option value="20">20 秒</option>
+        <option value="30">30 秒</option>
+        <option value="60">60 秒</option>
+      </select>
+    </div>
+  </div>
+</div>
+
 <!-- 星座 + 城市 -->
 <div class="section">
   <div class="section-label">个性化</div>
@@ -462,6 +487,26 @@ document.getElementById('themeSelect').addEventListener('change', function() {
   document.getElementById('textInputRow').style.display = this.value === 'text' ? 'flex' : 'none';
 });
 
+document.getElementById('btnPickPhotoDir').addEventListener('click', function() {
+  if (!window.pickPhotoDir) return;
+  window.pickPhotoDir().then(function(dir) {
+    if (dir) {
+      document.getElementById('photoDirDisplay').textContent = dir;
+      document.getElementById('btnClearPhotoDir').style.display = '';
+    }
+  });
+});
+document.getElementById('btnClearPhotoDir').addEventListener('click', function() {
+  if (!window.clearPhotoDir) return;
+  window.clearPhotoDir().then(function() {
+    document.getElementById('photoDirDisplay').textContent = '未选择目录';
+    document.getElementById('btnClearPhotoDir').style.display = 'none';
+  });
+});
+document.getElementById('photoInterval').addEventListener('change', function() {
+  if (window.savePhotoInterval) window.savePhotoInterval(parseInt(this.value));
+});
+
 var textTimer = null;
 document.getElementById('wallpaperText').addEventListener('input', function() {
   clearTimeout(textTimer);
@@ -672,6 +717,12 @@ if (window.loadAllSettings) {
     if (s.knowledgeKeyword) document.getElementById('knowledgeKeyword').value = s.knowledgeKeyword;
     if (s.knowledgePrompt) document.getElementById('knowledgePrompt').value = s.knowledgePrompt;
     if (s.theme === 'text') document.getElementById('textInputRow').style.display = 'flex';
+    // Photo state
+    if (s.photoDir) {
+      document.getElementById('photoDirDisplay').textContent = s.photoDir;
+      document.getElementById('btnClearPhotoDir').style.display = '';
+    }
+    if (s.photoInterval) document.getElementById('photoInterval').value = s.photoInterval;
     // Color state
     if (s.color1) { currentColor1 = s.color1; currentColor2 = s.color2 || ''; currentGradient = s.colorGradient || false; }
     if (s.wallpaperType === 'color') updateColorPreview();