Documentation: various fixes. Add Russian CHM file.

doc/html/zh-cn/Normal Unmount vs Force Unmount.html

@@ -63,7 +63,7 @@
 <ol>
     <li>如果正常卸载尝试失败，会弹出一个窗口，通过该窗口触发。</li>
     <li>通过“首选项”，在“自动卸载”部分选中“强制自动卸载”选项。</li>
-    <li>使用命令行，在 /d 或 /unmount 开关后面加上 /force 或 /f 开关。</li>
+    <li>使用命令行，在 /u 或 /unmount 开关后面加上 /force 或 /f 开关。</li>
 </ol>
 
 <p>为了避免意外的数据丢失或损坏，在卸载VeraCrypt卷时，请始终采取适当的预防措施，包括：</p>

doc/html/zh-cn/styles.css

@@ -80,3 +80,97 @@
     transform: translateY(-1px);
     transition: all 0.2s ease;
 }
+
+/* Language Selector Styles */
+#lang-selector {
+    position: absolute;
+    top: 18px;
+    right: 32px;
+    z-index: 9999;
+    font-family: inherit;
+    user-select: none;
+  }
+  
+  #lang-selector button {
+    background: #fff;
+    border: 1px solid #08aad7;
+    border-radius: 6px;
+    padding: 6px 12px 6px 8px;
+    display: flex;
+    align-items: center;
+    cursor: pointer;
+    min-width: 110px;
+    font-size: 15px;
+    box-shadow: 0 2px 8px rgba(8,170,215,0.08);
+    transition: border 0.2s;
+  }
+  
+  #lang-selector button:focus {
+    outline: 2px solid #08aad7;
+  }
+  
+  #lang-selector img {
+    width: 20px;
+    height: 13px;
+    border-radius: 3px;
+    margin-right: 7px;
+    vertical-align: middle;
+  }
+  
+  #lang-selector ul {
+    display: none;
+    position: absolute;
+    top: 40px;
+    right: 0;
+    background: #fff;
+    border: 1px solid #08aad7;
+    border-radius: 6px;
+    box-shadow: 0 4px 16px rgba(8,170,215,0.12);
+    margin: 0;
+    padding: 4px 0;
+    min-width: 150px;
+    list-style: none;
+  }
+  
+  #lang-selector ul.open {
+    display: block;
+    animation: fadeIn 0.15s;
+  }
+  
+  @keyframes fadeIn {
+    from { opacity: 0; transform: translateY(-8px);}
+    to { opacity: 1; transform: translateY(0);}
+  }
+  
+  #lang-selector li {
+    display: flex;
+    align-items: center;
+    padding: 7px 16px;
+    cursor: pointer;
+    font-size: 15px;
+    transition: background 0.15s;
+  }
+  
+  #lang-selector li[aria-selected="true"],
+  #lang-selector li:hover,
+  #lang-selector li:focus {
+    background: #e6f7fb;
+  }
+  
+  #lang-selector li img {
+    margin-right: 10px;
+    width: 20px;
+    height: 13px;
+    border-radius: 3px;
+  }
+  
+  @media (max-width: 600px) {
+    #lang-selector {
+      top: 8px;
+      right: 8px;
+      font-size: 14px;
+    }
+    #lang-selector ul {
+      min-width: 110px;
+    }
+  }