diff --git a/internal/api/web/index.html b/internal/api/web/index.html
index 4420396..74571c0 100644
--- a/internal/api/web/index.html
+++ b/internal/api/web/index.html
@@ -45,7 +45,7 @@ body{background:var(--bg);color:var(--text);transition:background .2s,color .2s}
 button.ghost{background:var(--surface2);color:var(--text)}.meta,.path{color:var(--muted)}
 .card{box-shadow:var(--shadow)}th{background:var(--surface2);color:var(--muted)}th,td{border-color:var(--border)}.field input,.toolbar input,.field select{background:var(--surface);color:var(--text);border-color:var(--border)}
 .iconbtn{width:38px;height:38px;padding:0;background:var(--surface2);color:var(--text);display:inline-flex;align-items:center;justify-content:center}.ui-icon{width:18px;height:18px;display:block;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.ui-icon.fill{fill:currentColor;stroke:none}.viewbtn.active{background:var(--primary);color:#fff}.selectbox{width:18px;height:18px;accent-color:var(--primary)}
-.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px;padding:16px}.tile{position:relative;border:1px solid var(--border);border-radius:16px;padding:12px;background:var(--surface);min-height:192px;cursor:pointer;transition:border-color .16s,box-shadow .16s,transform .16s;touch-action:manipulation}.tile .selectbox,.file-row .selectbox{touch-action:manipulation}.side-item{touch-action:manipulation}.tile:hover{border-color:var(--primary);box-shadow:0 10px 28px rgba(20,30,50,.08);transform:translateY(-1px)}.tile.selected{border-color:var(--primary);box-shadow:0 0 0 2px rgba(37,99,235,.14)}.tile .thumb{height:112px;display:flex;align-items:center;justify-content:center;border-radius:11px;background:var(--surface2);overflow:hidden;margin-bottom:11px;color:var(--muted);transition:background .16s}.tile:hover .thumb{background:var(--surface2)}.tile .thumb .ui-icon{width:44px;height:44px;stroke-width:1.35}.tile .thumb img{width:100%;height:100%;object-fit:cover;display:block}.tile .tile-title{display:flex;align-items:center;gap:7px;min-width:0;padding:0 2px}.tile .tile-title .ui-icon{width:16px;height:16px;flex:0 0 auto}.tile .file-name{font-size:14px;font-weight:560;line-height:1.35}.tile .tile-meta{display:flex;gap:8px;padding:6px 2px 0;color:var(--muted);font-size:12px}.tile .tile-check{position:absolute;left:10px;top:10px;opacity:0;transition:opacity .14s}.tile:hover .tile-check,.tile.selected .tile-check{opacity:1}.tile .tile-action{position:absolute;right:9px;top:9px;width:30px;height:30px;padding:0;border:1px solid var(--border);background:var(--surface);color:var(--text);opacity:0;transition:opacity .14s}.tile:hover .tile-action,.tile.selected .tile-action{opacity:1}.tile .tile-action .ui-icon{width:15px;height:15px}.tile.folder-tile .thumb{background:var(--surface2)}.tile.media-tile .thumb{background:#0d1218;color:#d7e0ec}.tile.media-tile .thumb .ui-icon{stroke-width:1.45}.progress{height:8px;background:var(--surface2);border-radius:99px;overflow:hidden}.progress i{display:block;height:100%;width:0;background:var(--primary);transition:width .15s}.upload-row{display:grid;gap:7px;padding:10px 0;border-bottom:1px solid var(--border)}.upload-row .upload-head{display:flex;align-items:center;gap:8px;min-width:0}.upload-row .upload-name{min-width:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-row .upload-actions{display:flex;gap:5px}.upload-row .upload-actions button{padding:5px 8px;font-size:12px}.upload-summary{display:flex;align-items:center;gap:10px;padding:10px 0}.upload-summary .count{margin-right:auto}.drop-active{border-color:var(--primary)!important;background:var(--surface2)!important}.qr{width:min(320px,80vw);aspect-ratio:1;margin:auto;display:block;border-radius:12px;background:#fff}.drop-hint{color:var(--muted);font-size:13px;margin-top:7px}.tile .tilecheck{position:absolute;top:9px;left:9px}.tile .tilemenu{position:absolute;right:7px;top:7px}.file-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.bulk{display:none;align-items:center;gap:8px;margin-bottom:12px}.bulk.show{display:flex}.bulk .count{font-weight:650;margin-right:auto}.layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:16px}.sidebar{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:12px;height:max-content;position:sticky;top:82px}.side-title{font-size:12px;font-weight:700;color:var(--muted);padding:6px 9px}.side-item{width:100%;text-align:left;background:transparent;color:var(--text);margin:2px 0}.side-item.active{background:var(--surface2);color:var(--primary)}@media(max-width:900px){.layout{display:block}.sidebar{position:static;margin-bottom:14px;display:flex;gap:6px;overflow:auto}.side-title{display:none}.side-item{white-space:nowrap;width:auto}.sidebar{scrollbar-width:none}.sidebar::-webkit-scrollbar{display:none}}@media(max-width:700px){main{margin:12px auto;padding:0 10px}.top{height:56px}.brand{font-size:18px}.path{max-width:46vw}.dialog{padding:16px;border-radius:14px}.dialog.preview-dialog{width:100%;height:calc(100vh - 12px);max-height:calc(100vh - 12px);border-radius:14px}.preview-stage{padding:14px;max-height:calc(100vh - 118px)}.preview-stage img{max-height:64vh}.preview-stage video{max-height:64vh}.gallery-nav{width:38px;height:38px}.gallery-prev{left:8px}.gallery-next{right:8px}.gallery-stage-touch{padding-left:8px;padding-right:8px}.editor-wrap{height:calc(100vh - 190px)}.editor-input,.editor-lines{font-size:12px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;padding:10px}.tile{min-height:164px;padding:9px;border-radius:13px}.tile .thumb{height:86px;margin-bottom:8px}.tile .tile-meta{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tile .tile-meta span+span{display:none}.tile .tile-check,.tile .tile-action{opacity:1}.bulk{bottom:8px}.toast-host{right:10px;bottom:10px}.toast{min-width:0;width:calc(100vw - 20px)}.row{flex-wrap:wrap}.row button{min-height:40px}.context{min-width:190px}.context button{padding:11px 10px}}.toast-host{position:fixed;right:18px;bottom:18px;z-index:20;display:grid;gap:8px}.toast{min-width:240px;max-width:min(420px,calc(100vw - 36px));padding:11px 14px;border:1px solid var(--border);border-radius:11px;background:var(--surface);box-shadow:var(--shadow);color:var(--text);animation:toastIn .18s ease}@keyframes toastIn{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}.toast.error{border-color:var(--danger)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:58px 24px;min-height:260px;color:var(--muted)}.empty-state .empty-icon{width:58px;height:58px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:16px;background:var(--surface2);margin-bottom:14px;color:var(--muted)}.empty-state .empty-icon .ui-icon{width:27px;height:27px;stroke-width:1.45}.empty-state h3{margin:0 0 6px;color:var(--text);font-size:16px}.empty-state p{margin:0;max-width:420px;font-size:13px;line-height:1.6}.empty-state .row{margin-top:16px}.empty-state.search-empty{min-height:300px}.state-icon{width:58px;height:58px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:16px;background:var(--surface2);margin:0 auto 14px;color:var(--muted)}.state-icon .ui-icon{width:27px;height:27px;stroke-width:1.45}.state-actions{display:flex;gap:8px;justify-content:center;margin-top:16px}.loading-state{padding:24px}.skeleton-row{height:48px;border-bottom:1px solid var(--border);background:linear-gradient(90deg,var(--surface2),var(--surface),var(--surface2));background-size:240% 100%;animation:shimmer 1.2s infinite}@keyframes shimmer{from{background-position:200% 0}to{background-position:-40% 0}}.state-error{padding:46px 24px}.state-error h3{margin:0 0 7px;color:var(--text);font-size:16px}.state-error p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.context{position:fixed;z-index:10;display:none;min-width:170px;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:10px;padding:5px}.context button{display:block;width:100%;text-align:left;background:transparent;color:var(--text);border-radius:7px}.context button:hover{background:var(--surface2)}
+.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px;padding:16px}.tile{position:relative;border:1px solid var(--border);border-radius:16px;padding:12px;background:var(--surface);min-height:192px;cursor:pointer;transition:border-color .16s,box-shadow .16s,transform .16s;touch-action:manipulation}.tile .selectbox,.file-row .selectbox{touch-action:manipulation}.side-item{touch-action:manipulation}.tile:hover{border-color:var(--primary);box-shadow:0 10px 28px rgba(20,30,50,.08);transform:translateY(-1px)}.tile.selected{border-color:var(--primary);box-shadow:0 0 0 2px rgba(37,99,235,.14)}.tile .thumb{height:112px;display:flex;align-items:center;justify-content:center;border-radius:11px;background:var(--surface2);overflow:hidden;margin-bottom:11px;color:var(--muted);transition:background .16s}.tile:hover .thumb{background:var(--surface2)}.tile .thumb .ui-icon{width:44px;height:44px;stroke-width:1.35}.tile .thumb img{width:100%;height:100%;object-fit:cover;display:block}.tile .tile-title{display:flex;align-items:center;gap:7px;min-width:0;padding:0 2px}.tile .tile-title .ui-icon{width:16px;height:16px;flex:0 0 auto}.tile .file-name{font-size:14px;font-weight:560;line-height:1.35}.tile .tile-meta{display:flex;gap:8px;padding:6px 2px 0;color:var(--muted);font-size:12px}.tile .tile-check{position:absolute;left:10px;top:10px;opacity:0;transition:opacity .14s}.tile:hover .tile-check,.tile.selected .tile-check{opacity:1}.tile .tile-action{position:absolute;right:9px;top:9px;width:30px;height:30px;padding:0;border:1px solid var(--border);background:var(--surface);color:var(--text);opacity:0;transition:opacity .14s}.tile:hover .tile-action,.tile.selected .tile-action{opacity:1}.tile .tile-action .ui-icon{width:15px;height:15px}.tile.folder-tile .thumb{background:var(--surface2)}.tile.media-tile .thumb{background:#0d1218;color:#d7e0ec}.tile.media-tile .thumb .ui-icon{stroke-width:1.45}.progress{height:8px;background:var(--surface2);border-radius:99px;overflow:hidden}.progress i{display:block;height:100%;width:0;background:var(--primary);transition:width .15s}.upload-row{display:grid;gap:7px;padding:10px 0;border-bottom:1px solid var(--border)}.upload-row .upload-head{display:flex;align-items:center;gap:8px;min-width:0}.upload-row .upload-name{min-width:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-row .upload-actions{display:flex;gap:5px}.upload-row .upload-actions button{padding:5px 8px;font-size:12px}.upload-summary{display:flex;align-items:center;gap:10px;padding:10px 0}.upload-summary .count{margin-right:auto}.drop-active{border-color:var(--primary)!important;background:var(--surface2)!important}.qr{width:min(320px,80vw);aspect-ratio:1;margin:auto;display:block;border-radius:12px;background:#fff}.drop-hint{color:var(--muted);font-size:13px;margin-top:7px}.tile .tilecheck{position:absolute;top:9px;left:9px}.tile .tilemenu{position:absolute;right:7px;top:7px}.file-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.bulk{display:none;align-items:center;gap:8px;margin-bottom:12px}.bulk.show{display:flex}.bulk .count{font-weight:650;margin-right:auto}.layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:16px}.sidebar{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:12px;height:max-content;position:sticky;top:82px}.side-title{font-size:12px;font-weight:700;color:var(--muted);padding:6px 9px}.side-item{width:100%;text-align:left;background:transparent;color:var(--text);margin:2px 0}.side-item.active{background:var(--surface2);color:var(--primary)}@media(max-width:900px){.layout{display:block}.sidebar{position:static;margin-bottom:14px;display:flex;gap:6px;overflow:auto}.side-title{display:none}.side-item{white-space:nowrap;width:auto}.sidebar{scrollbar-width:none}.sidebar::-webkit-scrollbar{display:none}}.mobile-quick-upload{display:none}@media(max-width:700px){.mobile-quick-upload{position:fixed;left:10px;right:10px;bottom:12px;z-index:9}.mobile-quick-upload button{width:100%;min-height:48px;box-shadow:0 8px 24px rgba(20,30,50,.16)}main{margin:12px auto;padding:0 10px}.top{height:56px}.brand{font-size:18px}.path{max-width:46vw}.dialog{padding:16px;border-radius:14px}.dialog.preview-dialog{width:100%;height:calc(100vh - 12px);max-height:calc(100vh - 12px);border-radius:14px}.preview-stage{padding:14px;max-height:calc(100vh - 118px)}.preview-stage img{max-height:64vh}.preview-stage video{max-height:64vh}.gallery-nav{width:38px;height:38px}.gallery-prev{left:8px}.gallery-next{right:8px}.gallery-stage-touch{padding-left:8px;padding-right:8px}.editor-wrap{height:calc(100vh - 190px)}.editor-input,.editor-lines{font-size:12px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;padding:10px}.tile{min-height:164px;padding:9px;border-radius:13px}.tile .thumb{height:86px;margin-bottom:8px}.tile .tile-meta{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tile .tile-meta span+span{display:none}.tile .tile-check,.tile .tile-action{opacity:1}.bulk{bottom:8px}.toast-host{right:10px;bottom:10px}.toast{min-width:0;width:calc(100vw - 20px)}.row{flex-wrap:wrap}.row button{min-height:40px}.context{min-width:190px}.context button{padding:11px 10px}}.toast-host{position:fixed;right:18px;bottom:18px;z-index:20;display:grid;gap:8px}.toast{min-width:240px;max-width:min(420px,calc(100vw - 36px));padding:11px 14px;border:1px solid var(--border);border-radius:11px;background:var(--surface);box-shadow:var(--shadow);color:var(--text);animation:toastIn .18s ease}@keyframes toastIn{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}.toast.error{border-color:var(--danger)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:58px 24px;min-height:260px;color:var(--muted)}.empty-state .empty-icon{width:58px;height:58px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:16px;background:var(--surface2);margin-bottom:14px;color:var(--muted)}.empty-state .empty-icon .ui-icon{width:27px;height:27px;stroke-width:1.45}.empty-state h3{margin:0 0 6px;color:var(--text);font-size:16px}.empty-state p{margin:0;max-width:420px;font-size:13px;line-height:1.6}.empty-state .row{margin-top:16px}.empty-state.search-empty{min-height:300px}.state-icon{width:58px;height:58px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:16px;background:var(--surface2);margin:0 auto 14px;color:var(--muted)}.state-icon .ui-icon{width:27px;height:27px;stroke-width:1.45}.state-actions{display:flex;gap:8px;justify-content:center;margin-top:16px}.loading-state{padding:24px}.skeleton-row{height:48px;border-bottom:1px solid var(--border);background:linear-gradient(90deg,var(--surface2),var(--surface),var(--surface2));background-size:240% 100%;animation:shimmer 1.2s infinite}@keyframes shimmer{from{background-position:200% 0}to{background-position:-40% 0}}.state-error{padding:46px 24px}.state-error h3{margin:0 0 7px;color:var(--text);font-size:16px}.state-error p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.context{position:fixed;z-index:10;display:none;min-width:170px;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:10px;padding:5px}.context button{display:block;width:100%;text-align:left;background:transparent;color:var(--text);border-radius:7px}.context button:hover{background:var(--surface2)}
 </style>
 </head>
 <body>
@@ -61,12 +61,12 @@ button.ghost{background:var(--surface2);color:var(--text)}.meta,.path{color:var(
   <div class="toolbar">
     <div class="toolgroup"><button class="ghost iconbtn" onclick="goUp()" title="上一级"><svg class="ui-icon" viewBox="0 0 24 24"><path d="m14 6-6 6 6 6M8 12h12"/></svg></button><button class="ghost iconbtn" onclick="refresh()" title="刷新"><svg class="ui-icon" viewBox="0 0 24 24"><path d="M20 11a8 8 0 1 0 1 4M20 5v6h-6"/></svg></button><button class="secondary" onclick="showRoots()">位置</button></div>
     <span class="divider"></span>
-    <div class="toolgroup"><button id="newFolderBtn" class="secondary" onclick="newFolder()">新建文件夹</button><button id="newTextBtn" class="secondary" onclick="newText()">新建文本</button><label><button id="uploadBtn" class="primary">上传</button><input id="upload" type="file" multiple hidden></label><button class="secondary" onclick="showMobileTransfer()">手机传输</button></div>
+    <div class="toolgroup"><button id="newFolderBtn" class="secondary" onclick="newFolder()">新建文件夹</button><button id="newTextBtn" class="secondary" onclick="newText()">新建文本</button><label><button id="uploadBtn" class="primary">上传</button><input id="upload" type="file" multiple accept="*/*" capture="environment" hidden></label> </div>
     <div class="searchbox"><svg class="ui-icon" viewBox="0 0 24 24"><circle cx="11" cy="11" r="6"/><path d="m16 16 5 5"/></svg><input id="search" placeholder="搜索文件名，回车执行"></div>
     <div class="toolgroup"><button id="usersBtn" class="ghost" onclick="showUsers()" hidden>用户管理</button><button class="ghost" id="pwdBtn" onclick="changePassword()" hidden>修改密码</button><button class="iconbtn" id="themeBtn" onclick="toggleTheme()" title="主题"><span id="themeIcon"></span></button><span class="view-switch"><button class="iconbtn viewbtn active" id="listBtn" onclick="setView('list')" title="列表"><span id="listIcon"></span></button><button class="iconbtn viewbtn" id="gridBtn" onclick="setView('grid')" title="网格"><span id="gridIcon"></span></button></span></div>
   </div>
   <div id="bulk" class="bulk"><span id="selectedCount" class="count"></span><button class="ghost" onclick="bulkMove()">移动</button><button class="ghost" onclick="bulkCopy()">复制</button><button class="ghost" onclick="bulkDownload()">下载 ZIP</button><button class="danger" onclick="bulkDelete()">删除</button><button class="ghost" onclick="clearSelection()">取消选择</button></div><div class="card" id="fileCard"><table><thead><tr><th class="check-col"><input id="selectAll" class="selectbox" type="checkbox" onchange="toggleAll(this.checked)" title="全选"></th><th class="name-col"><button class="sorthead" onclick="sortBy('name')" title="按名称排序">名称 <span id="sort-name"></span></button></th><th class="size-col"><button class="sorthead" onclick="sortBy('size')" title="按大小排序">大小 <span id="sort-size"></span></button></th><th class="time-col"><button class="sorthead" onclick="sortBy('modified')" title="按修改时间排序">修改时间 <span id="sort-modified"></span></button></th><th class="perm-col">权限</th><th class="action-col">操作</th></tr></thead><tbody id="files"></tbody></table><div id="grid" class="grid" hidden></div></div></section></div>
-</main><div id="context" class="context"></div><div id="toastHost" class="toast-host"></div>
+</main><div id="mobileQuickUpload" class="mobile-quick-upload" hidden><button class="primary" onclick="$(\"upload\").click()"><svg class="ui-icon" viewBox="0 0 24 24"><path d="M12 5v14M5 12h14"/></svg>拍照 / 传文件到此目录</button></div><div id="context" class="context"></div><div id="toastHost" class="toast-host"></div>
 <div class="modal" id="modal"><div class="dialog" id="dialog"></div></div>
 <script>
 const $=id=>document.getElementById(id);let current="",me=null,currentMask="",navigationRoot="";
@@ -81,7 +81,8 @@ async function init(){try{me=await api("/chfs/me")}catch{me={username:"",home:""
 function updateUser(){$("who").textContent=me.username?me.username: "访客";$("loginBtn").hidden=!!me.username;$("logoutBtn").hidden=!me.username;$("usersBtn").hidden=!me.admin;$("pwdBtn").hidden=!me.username||!me.managed}
 function showLoading(){const row='<div class="skeleton-row"></div>'.repeat(6);$("files").innerHTML='<tr><td colspan="6"><div class="loading-state">'+row+'</div></td></tr>';$("grid").innerHTML='<div class="loading-state">'+row+'</div>'}
 function showState(title,text,type="error"){const icon=type==="lock"?'<path d="M7 11V8a5 5 0 0 1 10 0v3"/><rect x="4" y="11" width="16" height="10" rx="2"/><path d="M12 15v3"/>':type==="offline"?'<path d="m4 4 16 16M9 9a5 5 0 0 1 6 6M6 6a9 9 0 0 1 12 0M3 3l18 18"/>':'<circle cx="12" cy="12" r="9"/><path d="M12 8v5M12 16v.5"/>';$("files").innerHTML='<tr><td colspan="6"><div class="empty-state state-error"><div class="state-icon"><svg class="ui-icon" viewBox="0 0 24 24">'+icon+'</svg></div><h3>'+esc(title)+'</h3><p>'+esc(text)+'</p><div class="state-actions"><button onclick="refresh()">重试</button></div></div></td></tr>';$("grid").innerHTML='<div class="empty-state state-error"><div class="state-icon"><svg class="ui-icon" viewBox="0 0 24 24">'+icon+'</svg></div><h3>'+esc(title)+'</h3><p>'+esc(text)+'</p><div class="state-actions"><button onclick="refresh()">重试</button></div></div>'}
-async function refresh(){showLoading();try{const q=encodeURIComponent(current);const data=await api("/chfs/files?filepath="+q);currentMask=data.currentMask||"";const writable=can("write");$("newFolderBtn").disabled=!writable;$("newTextBtn").disabled=!writable;$("uploadBtn").disabled=!writable;$("search").disabled=!data.currentMask?.includes("R");render(data.files||[]);loadSideRoots();renderBreadcrumb();$("notice").innerHTML=""}catch(e){$("newFolderBtn").disabled=true;$("newTextBtn").disabled=true;$("uploadBtn").disabled=true;$("search").disabled=true;const status=e.status||0;if(status===401){showState("需要登录","当前会话已失效，请重新登录后继续。","lock")}else if(status===403){showState("没有访问权限","当前账号无权访问这个位置，请返回其他可访问位置。","lock")}else if(status===404){showState("位置不存在","这个文件夹可能已经被移动、删除，或当前链接已经失效。")}else if(status===0){showState("连接失败","暂时无法连接到 CHFS，请检查网络后重试。","offline")}else{showState("无法加载","服务器暂时无法读取这个位置。","error")}$("notice").innerHTML=""}}
+function updateMobileQuickUpload(){const el=$("mobileQuickUpload");if(!el)return;const scanned=new URLSearchParams(location.hash.slice(1)).has("folder");const mobile=/Android|iPhone|iPad|iPod|Mobile/i.test(navigator.userAgent);el.hidden=!(scanned&&mobile&&can("write"))}
+async function refresh(){showLoading();try{const q=encodeURIComponent(current);const data=await api("/chfs/files?filepath="+q);currentMask=data.currentMask||"";const writable=can("write");$("newFolderBtn").disabled=!writable;$("newTextBtn").disabled=!writable;$("uploadBtn").disabled=!writable;$("search").disabled=!data.currentMask?.includes("R");render(data.files||[]);loadSideRoots();renderBreadcrumb();updateMobileQuickUpload();$("notice").innerHTML=""}catch(e){$("newFolderBtn").disabled=true;$("newTextBtn").disabled=true;$("uploadBtn").disabled=true;$("search").disabled=true;const status=e.status||0;if(status===401){showState("需要登录","当前会话已失效，请重新登录后继续。","lock")}else if(status===403){showState("没有访问权限","当前账号无权访问这个位置，请返回其他可访问位置。","lock")}else if(status===404){showState("位置不存在","这个文件夹可能已经被移动、删除，或当前链接已经失效。")}else if(status===0){showState("连接失败","暂时无法连接到 CHFS，请检查网络后重试。","offline")}else{showState("无法加载","服务器暂时无法读取这个位置。","error")}$("notice").innerHTML=""}}
 function fileType(f){const n=f.name.toLowerCase();if(f.dir)return "folder";if(/\.(png|jpe?g|gif|webp|bmp|svg)$/.test(n))return "image";if(/\.(mp4|webm|mov|mkv)$/.test(n))return "video";if(/\.(mp3|wav|flac|m4a|ogg)$/.test(n))return "audio";if(/\.(pdf)$/.test(n))return "pdf";return "file"}
 function svgIcon(type){const p={folder:'<path d="M3 6.5h6l2 2H21v9.5a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z"/>',image:'<rect x="3" y="4" width="18" height="16" rx="2"/><circle cx="8" cy="9" r="1.4"/><path d="m4 17 5-5 4 4 2-2 5 5"/>',video:'<rect x="3" y="5" width="13" height="14" rx="2"/><path d="m16 10 5-3v10l-5-3z"/>',audio:'<path d="M9 18V6l9-2v12"/><circle cx="6" cy="18" r="3"/><circle cx="15" cy="16" r="3"/>',pdf:'<path d="M6 3h8l4 4v14H6z"/><path d="M14 3v5h5M8 16h8M8 12h6"/>',archive:'<path d="M7 3h10v18H7z"/><path d="M10 3v3h4V3M10 8h4v3h-4v3h4v3h-4"/>',document:'<path d="M6 3h8l4 4v14H6z"/><path d="M14 3v5h5M9 12h6M9 16h6"/>',code:'<path d="m9 7-5 5 5 5M15 7l5 5-5 5M13 4l-2 16"/>',spreadsheet:'<rect x="4" y="3" width="16" height="18" rx="2"/><path d="M4 8h16M10 8v13M15 8v13M4 13h16M4 17h16"/>',presentation:'<rect x="3" y="4" width="18" height="14" rx="2"/><path d="M12 18v3M8 21h8M7 14l3-4 3 2 4-5"/>',file:'<path d="M6 3h8l4 4v14H6z"/><path d="M14 3v5h5"/>'};return '<svg class="ui-icon" viewBox="0 0 24 24" aria-hidden="true">'+(p[type]||p.file)+'</svg>'}function iconFor(f){const n=f.name.toLowerCase();const t=fileType(f);if(t!=="file")return svgIcon(t);if(/\.(zip|7z|rar|tar|gz|bz2|xz)$/.test(n))return svgIcon("archive");if(/\.(xls|xlsx|ods)$/.test(n))return svgIcon("spreadsheet");if(/\.(ppt|pptx|odp)$/.test(n))return svgIcon("presentation");if(/\.(doc|docx|odt|rtf)$/.test(n))return svgIcon("document");if(/\.(js|ts|jsx|tsx|css|scss|html|htm|go|rs|py|java|c|cpp|h|hpp|sh|sql|json|yaml|yml|xml)$/.test(n))return svgIcon("code");return svgIcon("file")}
 let selectionAnchor=null;
@@ -104,6 +105,12 @@ async function folderDrop(e,target){if(!e.dataTransfer?.types.includes('text/chf
 function handleItemClick(e,p){e.preventDefault();if(!me.username){guestItemActions(p);return}activateItem(p)}
 function activateItem(p){const f=lastItems.find(x=>(current?current+"/":"")+x.name===p);if(!f)return;if(f.dir&&can("read",f))openDir(p);else if(can("read",f))previewFile(p)}
 function sharedURL(p){return new URL("/chfs/shared/"+p.split("/").map(encodeURIComponent).join("/"),location.href).href}
+function folderURL(p){const u=new URL(location.href);u.hash="folder="+encodeURIComponent(p);return u.href}
+function folderZipURL(p){return new URL("/chfs/downloaddir/"+encodeURI(p),location.href).href}
+async function copyText(value){try{await navigator.clipboard.writeText(value);toast("链接已复制")}catch{const t=document.createElement("textarea");t.value=value;t.style.position="fixed";t.style.opacity="0";document.body.appendChild(t);t.select();document.execCommand("copy");t.remove();toast("链接已复制")}}
+function showQR(title,url,tip="使用手机相机或扫码工具扫描，即可直接在手机上保存或打开。"){show('<h2>扫码下载 - '+esc(title)+'</h2><img class="qr" src="/chfs/qrcode?url='+encodeURIComponent(url)+'" alt="二维码"><p class="drop-hint" style="text-align:center">'+esc(tip)+'</p><div class="field"><input value="'+esc(url)+'" readonly></div><div class="row"><button class="ghost" onclick="closeModal()">关闭</button><button class="secondary" onclick="copyText('+attrJSON(url)+')">复制下载链接</button></div>')}
+function showFolderQR(p){const url=folderURL(p);show('<h2>扫码进入 - '+esc(p.split("/").pop()||p)+'</h2><img class="qr" src="/chfs/qrcode?url='+encodeURIComponent(url)+'" alt="二维码"><p class="drop-hint" style="text-align:center">手机扫码后直接打开这个文件夹。</p><div class="field"><input value="'+esc(url)+'" readonly></div><div class="row"><button class="ghost" onclick="closeModal()">关闭</button><button class="secondary" onclick="copyText('+attrJSON(url)+')">复制访问链接</button></div>')}
+function qrItem(p){const f=searchMode?searchItems.find(x=>searchPath(x)===p):lastItems.find(x=>(current?current+"/":"")+x.name===p);if(!f||!can("read",f))return toast("当前项目没有访问权限",true);if(f.dir)showFolderQR(p);else showQR(f.name,sharedURL(p))}
 function guestItemActions(p){const f=lastItems.find(x=>(current?current+"/":"")+x.name===p);if(!f||!can("read",f)){toast("当前项目没有访问权限",true);return}if(f.dir){openDir(p);return}const url=sharedURL(p);let html='<h2>'+esc(f.name)+'</h2><div class="notice">访客可以直接下载或复制分享链接。</div><div class="row" style="justify-content:flex-start"><button onclick="location.href='+attrJSON(sharedURL(p))+'">下载</button><button class="ghost" onclick="guestCopyShare('+attrJSON(url)+')">复制分享链接</button></div>';show(html)}
 async function guestCopyShare(url){try{await navigator.clipboard.writeText(url);toast("分享链接已复制");closeModal()}catch{show('<h2>分享链接</h2><div class="field"><input value="'+esc(url)+'" readonly></div><div class="row"><button class="ghost" onclick="closeModal()">关闭</button></div>')}}
 function toggleTile(p){selectItem(p,!selected.has(p))}
@@ -112,7 +119,7 @@ function toggleAll(v){if(!me?.username)return;const source=searchMode?searchItem
 function clearSelection(){selected.clear();updateSelection();if(searchMode){renderSearch(searchItems);return}renderGrid(lastItems);renderList(lastItems)}
 function updateSelection(){const isGuest=!me?.username;if(isGuest)selected.clear();const n=selected.size;$("bulk").classList.toggle("show",n>0&&!isGuest);$("selectedCount").textContent=n?("已选择 "+n+" 项"):"";const bulkBtns=$("bulk")?.querySelectorAll("button");if(bulkBtns?.length){bulkBtns[0].hidden=!canSelection("move");bulkBtns[1].hidden=!canSelection("copy");bulkBtns[2].hidden=!canSelection("download");bulkBtns[3].hidden=!canSelection("delete");}const source=searchMode?searchItems:lastItems;const header=$("selectAll");if(header){header.hidden=isGuest;const total=source.length;header.checked=total>0&&n===total;header.indeterminate=n>0&&n<total}document.querySelectorAll("#files .file-row").forEach(row=>{const p=row.dataset.searchPath||row.dataset.filePath;row.classList.toggle("selected",!!p&&selected.has(p));const cb=row.querySelector(".selectbox");if(cb)cb.checked=!!p&&selected.has(p)});$("grid").querySelectorAll(".tile").forEach((el,i)=>{const f=source[i];if(f){const p=searchMode?f.path:(current?current+"/":"")+f.name,yes=selected.has(p);el.classList.toggle("selected",yes);const cb=el.querySelector(".selectbox");if(cb)cb.checked=yes}})}
 function setView(v){localStorage.setItem('chfs-view',v);$("files").parentElement.hidden=v==='grid';$("grid").hidden=v!=='grid';document.querySelectorAll('.viewbtn').forEach(b=>b.classList.remove('active'));$(v+'Btn').classList.add('active')}
-function itemMenu(e,p){e.preventDefault();e.stopPropagation();if(!selected.has(p)){selected.clear();selected.add(p);updateSelection()}const f=lastItems.find(x=>(current?current+'/':'')+x.name===p);const guest=!me.username;if(guest){const canRead=(f?.guestMask||f?.mask||'').includes('R');let html='';if(canRead)html+='<button onclick="downloadFile('+attrJSON(p)+');closeContext()">下载</button>';if(f?.dir&&canRead)html+='<button onclick="downloadDir('+attrJSON(p)+');closeContext()">下载 ZIP</button>';if(canRead)html+='<button onclick="shareItem('+attrJSON(p)+');closeContext()">分享</button>';if(!html)html='<div class="meta" style="padding:8px">没有可用操作</div>';$("context").innerHTML=html;$("context").style.left=Math.min(e.clientX,innerWidth-190)+'px';$("context").style.top=Math.min(e.clientY,innerHeight-220)+'px';$("context").style.display='block';return}const canRead=(f?.mask||'').includes('R'),canWrite=(f?.mask||'').includes('W'),canDelete=(f?.mask||'').includes('D');let html='';if(canRead)html+='<button onclick="downloadFile('+attrJSON(p)+');closeContext()">下载</button>';if(f?.dir&&canRead)html+='<button onclick="downloadDir('+attrJSON(p)+');closeContext()">下载 ZIP</button>';if(canWrite)html+='<button onclick="renameItem('+attrJSON(p)+');closeContext()">重命名</button><button onclick="transferItem('+attrJSON(p)+',false);closeContext()">移动到…</button><button onclick="transferItem('+attrJSON(p)+',true);closeContext()">复制到…</button>';if(canDelete)html+='<button onclick="removeItem('+attrJSON(p)+');closeContext()">删除</button>';if(f?.guestMask?.includes('R'))html+='<button onclick="shareItem('+attrJSON(p)+');closeContext()">分享</button>';if(!html)html='<div class="meta" style="padding:8px">没有可用操作</div>';$("context").innerHTML=html;$("context").style.left=Math.min(e.clientX,innerWidth-190)+'px';$("context").style.top=Math.min(e.clientY,innerHeight-220)+'px';$("context").style.display='block'}
+function itemMenu(e,p){e.preventDefault();e.stopPropagation();if(!selected.has(p)){selected.clear();selected.add(p);updateSelection()}const f=lastItems.find(x=>(current?current+'/':'')+x.name===p);const guest=!me.username;const canRead=(f?.guestMask||f?.mask||'').includes('R'),canWrite=!guest&&(f?.mask||'').includes('W'),canDelete=!guest&&(f?.mask||'').includes('D');let html='';if(canRead){if(f?.dir){html+='<button onclick="showFolderQR('+attrJSON(p)+');closeContext()">扫码进入</button><button onclick="showQR('+attrJSON(f.name)+','+attrJSON(folderZipURL(p))+');closeContext()">扫码下载 ZIP</button>'}else{html+='<button onclick="showQR('+attrJSON(f.name)+','+attrJSON(sharedURL(p))+');closeContext()">扫码下载</button>'}html+='<button onclick="downloadFile('+attrJSON(p)+');closeContext()">下载</button>';if(!guest)html+='<button onclick="shareItem('+attrJSON(p)+');closeContext()">分享</button>';else html+='<button onclick="shareItem('+attrJSON(p)+');closeContext()">分享</button>'}if(canWrite)html+='<button onclick="renameItem('+attrJSON(p)+');closeContext()">重命名</button><button onclick="transferItem('+attrJSON(p)+',false);closeContext()">移动到…</button><button onclick="transferItem('+attrJSON(p)+',true);closeContext()">复制到…</button>';if(canDelete)html+='<button onclick="removeItem('+attrJSON(p)+');closeContext()">删除</button>';if(!html)html='<div class="meta" style="padding:8px">没有可用操作</div>';$("context").innerHTML=html;$("context").style.left=Math.min(e.clientX,innerWidth-190)+'px';$("context").style.top=Math.min(e.clientY,innerHeight-220)+'px';$("context").style.display='block'}
 function closeContext(){$("context").style.display="none"}
 addEventListener('click',e=>{if(!e.target.closest('#context')&&!e.target.closest('.tile-action')&&!e.target.closest('.actions'))closeContext()});
 function bulkDownload(){if(!selected.size)return;const q=[...selected].map(p=>'path='+encodeURIComponent(p)).join('&');location.href='/chfs/downloadzip?'+q}
@@ -158,7 +165,7 @@ function cancelUploadTask(task){if(task.state==="queued"){task.state="cancelled"
 function retryUploadTask(task){if(task.state!=="failed"&&task.state!=="cancelled")return;task.state="uploading";setUploadTaskState(task,"uploading");uploadOne(task.file,task.row,task.relativePath,task).then(ok=>{if(task.state==="cancelled")return;task.state=ok?"done":"failed";setUploadTaskState(task,task.state);updateUploadSummary(window._uploadTasks||[])})}
 async function collectDroppedEntries(items){const out=[];async function walk(entry,prefix=""){if(entry.isFile){await new Promise(resolve=>entry.file(file=>{out.push({file,relativePath:prefix+file.name});resolve()},()=>resolve()));return}if(entry.isDirectory){const reader=entry.createReader();const all=[];while(true){const batch=await new Promise(resolve=>reader.readEntries(resolve,()=>resolve([])));if(!batch.length)break;all.push(...batch)}for(const child of all)await walk(child,prefix+entry.name+'/')}}for(const item of items){const entry=item.webkitGetAsEntry?.();if(entry)await walk(entry);else{const file=item.getAsFile?.();if(file)out.push({file,relativePath:file.name})}}return out}
 
-function showMobileTransfer(){const u=new URL(location.href);u.hash='folder='+encodeURIComponent(current);show('<h2>手机传输</h2><div class="notice">用手机扫描二维码打开当前文件夹。登录后即可按你的权限上传、下载和管理文件。</div><img class="qr" src="/chfs/qrcode?url='+encodeURIComponent(u.href)+'" alt="QR Code"><div class="field"><input value="'+esc(u.href)+'" readonly></div><div class="row"><button class="ghost" onclick="closeModal()">关闭</button></div>')}
+
 function setupDropZone(){const z=$("dropZone"),main=$("fileCard");let depth=0;[document,main].forEach(el=>{el.addEventListener('dragenter',e=>{if(!e.dataTransfer?.types.includes('Files'))return;e.preventDefault();depth++;z.style.display='block';z.classList.add('drop-active')});el.addEventListener('dragover',e=>{if(e.dataTransfer?.types.includes('Files'))e.preventDefault()});el.addEventListener('dragleave',e=>{if(!e.dataTransfer?.types.includes('Files'))return;depth--;if(depth<=0){depth=0;z.classList.remove('drop-active')}});el.addEventListener('drop',async e=>{if(!e.dataTransfer?.types.includes('Files'))return;e.preventDefault();depth=0;z.classList.remove('drop-active');z.style.display='none';const entries=await collectDroppedEntries(e.dataTransfer.items||[]);if(entries.length)await uploadEntries(entries);else if(e.dataTransfer.files?.length)await uploadFiles(e.dataTransfer.files)})})}
 function uploadOne(file,row,relativePath=file.name,task=null){return new Promise(resolve=>{const xhr=new XMLHttpRequest(),fd=new FormData();if(task)task.xhr=xhr;const clean=String(relativePath||file.name).replace(/\\/g,'/').replace(/^\/+|\/+$/g,'');const parts=clean.split('/');const name=parts.pop()||file.name;const folder=parts.length?[current,...parts].filter(Boolean).join('/') : current;fd.append("folder",folder);fd.append("file",file,name);const meta=row.querySelector('.meta'),bar=row.querySelector('i');xhr.open('POST','/chfs/upload');xhr.upload.onprogress=e=>{if(e.lengthComputable){const pct=Math.round(e.loaded/e.total*100);bar.style.width=pct+'%';meta.textContent=fmt(file.size)+' · '+pct+'%'}};xhr.onload=()=>{const ok=xhr.status>=200&&xhr.status<300;if(ok){bar.style.width='100%';meta.textContent=fmt(file.size)+' · 完成'}else{meta.textContent='上传失败'+(xhr.status?' · '+xhr.status:'');bar.style.width='0'};if(task)task.xhr=null;resolve(ok)};xhr.onerror=()=>{if(task&&task.state==='cancelled'){meta.textContent=fmt(file.size)+' · 已取消'}else{meta.textContent='网络错误';bar.style.width='0'};if(task)task.xhr=null;resolve(false)};xhr.onabort=()=>{if(task)task.xhr=null;resolve(false)};xhr.send(fd)})}
 let searchMode=false,searchItems=[];
@@ -172,7 +179,7 @@ function renderSearchList(items){const body=$("files");body.innerHTML=items.leng
 function renderSearchGrid(items){$("grid").innerHTML=items.length?items.map(f=>{const p=searchPath(f),name=searchName(f),canRead=searchCan(f,"R"),type=fileType(f),selectedNow=selected.has(p);let thumb=iconFor(f);if(type==="image"&&canRead)thumb='<img src="/chfs/thumbnail?file='+encodeURIComponent(p)+'" loading="lazy" alt="">';const tileClass=(f.dir?'folder-tile ':'')+(['video','audio'].includes(type)?'media-tile':'');return '<div class="tile '+tileClass+(selectedNow?' selected':'')+'" data-file-path="'+esc(p)+'" onclick="selectSearchItem('+attrJSON(p)+',true,event)" ondblclick="openSearchResult('+attrJSON(f)+')" oncontextmenu="searchMenu(event,'+attrJSON(f)+');return false"><input class="selectbox tile-check" type="checkbox" '+(me?.username?(selectedNow?'checked':''):'')+' '+(!me?.username?'hidden':'')+' onclick="event.stopPropagation();selectSearchItem('+attrJSON(p)+',this.checked,event)"><button class="iconbtn tile-action" onclick="event.stopPropagation();searchMenu(event,'+attrJSON(f)+')" title="更多操作"><svg class="ui-icon" viewBox="0 0 24 24"><circle cx="5" cy="12" r="1"/><circle cx="12" cy="12" r="1"/><circle cx="19" cy="12" r="1"/></svg></button><div class="thumb">'+thumb+'</div><div class="tile-title">'+iconFor(f)+'<div class="file-name">'+esc(name)+'</div></div><div class="tile-meta"><span>'+esc(searchParent(f)||"全部文件")+'</span>'+(f.modified?'<span>'+esc(f.modified)+'</span>':'')+'</div></div>'}).join(""):'<div class="empty-state search-empty"><div class="empty-icon">'+svgIcon("file")+'</div><h3>没有找到匹配文件</h3><p>换一个关键词试试，或者清空搜索框返回当前位置。</p></div>'}
 function selectSearchItem(p,checked,e){if(!me?.username)return;if(checked){if(e?.shiftKey){const paths=searchItems.map(searchPath),anchor=selectionAnchor&&paths.includes(selectionAnchor)?selectionAnchor:[...selected][0],a=paths.indexOf(anchor),b=paths.indexOf(p);if(a>=0&&b>=0){const lo=Math.min(a,b),hi=Math.max(a,b);if(!(e.ctrlKey||e.metaKey))selected.clear();for(let i=lo;i<=hi;i++)selected.add(paths[i])}else selected.add(p)}else if(e?.ctrlKey||e?.metaKey)selected.add(p);else{selected.clear();selected.add(p)}selectionAnchor=p}else{selected.delete(p);selectionAnchor=p}updateSelection();renderSearch(searchItems)}
 function toggleSearchItem(p,checked,e){selectSearchItem(p,checked,e)}
-function searchMenu(e,f){e.preventDefault();e.stopPropagation();const p=searchPath(f);if(!selected.has(p)){selected.clear();selected.add(p)}updateSelection();let html='';if(!me?.username){if(can("read",f))html+='<button onclick="downloadFile('+attrJSON(p)+');closeContext()">下载</button><button onclick="shareItem('+attrJSON(p)+');closeContext()">分享</button>'}else{const canRead=can("read",f),canWrite=can("write",f),canDelete=can("delete",f);if(canRead)html+='<button onclick="downloadFile('+attrJSON(p)+');closeContext()">下载</button>';if(f.dir&&canRead)html+='<button onclick="downloadDir('+attrJSON(p)+');closeContext()">下载 ZIP</button>';if(canWrite)html+='<button onclick="renameItem('+attrJSON(p)+');closeContext()">重命名</button><button onclick="transferItem('+attrJSON(p)+',false);closeContext()">移动到…</button><button onclick="transferItem('+attrJSON(p)+',true);closeContext()">复制到…</button>';if(canDelete)html+='<button onclick="removeItem('+attrJSON(p)+');closeContext()">删除</button>';if(f.guestMask?.includes("R"))html+='<button onclick="shareItem('+attrJSON(p)+');closeContext()">分享</button>'}if(!html)html='<div class="meta" style="padding:8px">没有可用操作</div>';$("context").innerHTML=html;$("context").style.left=Math.min(e.clientX,innerWidth-190)+"px";$("context").style.top=Math.min(e.clientY,innerHeight-220)+"px";$("context").style.display="block"}
+function searchMenu(e,f){e.preventDefault();e.stopPropagation();const p=searchPath(f);if(!selected.has(p)){selected.clear();selected.add(p)}updateSelection();const canRead=can("read",f),canWrite=can("write",f),canDelete=can("delete",f),guest=!me?.username;let html='';if(canRead){if(f.dir){html+='<button onclick="showFolderQR('+attrJSON(p)+');closeContext()">扫码进入</button><button onclick="showQR('+attrJSON(f.name)+','+attrJSON(folderZipURL(p))+');closeContext()">扫码下载 ZIP</button>'}else html+='<button onclick="showQR('+attrJSON(f.name)+','+attrJSON(sharedURL(p))+');closeContext()">扫码下载</button>';html+='<button onclick="downloadFile('+attrJSON(p)+');closeContext()">下载</button><button onclick="shareItem('+attrJSON(p)+');closeContext()">分享</button>'}if(canWrite&&!guest)html+='<button onclick="renameItem('+attrJSON(p)+');closeContext()">重命名</button><button onclick="transferItem('+attrJSON(p)+',false);closeContext()">移动到…</button><button onclick="transferItem('+attrJSON(p)+',true);closeContext()">复制到…</button>';if(canDelete&&!guest)html+='<button onclick="removeItem('+attrJSON(p)+');closeContext()">删除</button>';if(!html)html='<div class="meta" style="padding:8px">没有可用操作</div>';$("context").innerHTML=html;$("context").style.left=Math.min(e.clientX,innerWidth-190)+"px";$("context").style.top=Math.min(e.clientY,innerHeight-220)+"px";$("context").style.display="block"}
 function openSearchResult(f){if(f.dir){current=f.path;navigationRoot=me.home&&f.path.startsWith(me.home)?me.home:f.path.split("/")[0]||"";searchMode=false;$("search").value="";selected.clear();refresh()}else previewFile(f.path)}
 let galleryFiles=[],galleryIndex=0,activeMedia=null;
 async function openGallery(p){const dir=dirOf(p);let items=dir===current?lastItems:null;if(!items){try{const d=await api("/chfs/files?filepath="+encodeURIComponent(dir));items=d.files||[]}catch(e){return fail("无法加载图片目录："+e.message)}}galleryFiles=items.filter(f=>!f.dir&&fileType(f)==="image"&&(f.mask||"").includes("R")).map(f=>({...f,path:f.path||(dir?(dir+"/"+f.name):f.name)}));galleryIndex=Math.max(0,galleryFiles.findIndex(f=>f.path===p));renderGallery()}
@@ -204,6 +211,7 @@ function toast(message,error=false){const host=$("toastHost"),el=document.create
 function fail(message){toast(message,true)}
 function keyboardNavigation(e){const tag=(e.target?.tagName||"").toLowerCase();if(tag==="input"||tag==="textarea"||tag==="select"||tag==="button"||tag==="a"||e.target?.isContentEditable)return;if($("modal").classList.contains("show")&&$("galleryStage")&&galleryFiles.length){if(e.key==="ArrowLeft"){e.preventDefault();galleryMove(-1);return}if(e.key==="ArrowRight"){e.preventDefault();galleryMove(1);return}if(e.key==="Home"){e.preventDefault();galleryIndex=0;renderGallery();return}if(e.key==="End"){e.preventDefault();galleryIndex=galleryFiles.length-1;renderGallery();return}}if(e.key==="Escape"){if($("modal").classList.contains("show"))closeModal();else closeContext();return}if((e.ctrlKey||e.metaKey)&&e.key.toLowerCase()==="a"){e.preventDefault();toggleAll(true);return}if(e.key==="Enter"){e.preventDefault();openSelected();return}if(e.key==="Delete"&&selected.size){e.preventDefault();bulkDelete();return}if(e.key==="Backspace"&&current&&!searchMode){e.preventDefault();goUp();return}if((e.key==="ArrowDown"||e.key==="ArrowUp")){const source=searchMode?searchItems:lastItems;if(!source.length)return;e.preventDefault();const paths=searchMode?source.map(searchPath):selectablePaths(),anchor=selectionAnchor&&paths.includes(selectionAnchor)?selectionAnchor:[...selected][0],idx=Math.max(0,paths.indexOf(anchor)),next=Math.max(0,Math.min(paths.length-1,idx+(e.key==="ArrowDown"?1:-1)));if(searchMode)selectSearchItem(paths[next],true,e);else selectItem(paths[next],true,e);return}if(e.key==="Home"||e.key==="End"){const source=searchMode?searchItems:lastItems;if(!source.length)return;e.preventDefault();const paths=searchMode?source.map(searchPath):selectablePaths(),p=e.key==="Home"?paths[0]:paths.at(-1);if(searchMode)selectSearchItem(p,true,e);else selectItem(p,true,e)}}
 addEventListener("keydown",keyboardNavigation)
+addEventListener("hashchange",()=>{const h=new URLSearchParams(location.hash.slice(1)),folder=h.get("folder");if(folder!==null){current=folder;selected.clear();refresh()}})
 function show(html,preview=false){$("dialog").innerHTML=html;$("dialog").classList.toggle("preview-dialog",preview);$("modal").classList.add("show")}async function closeModal(){if(window._editorDirty&&$("editText")){const ok=await confirmBox("放弃未保存修改？","当前文本还有未保存的修改，关闭后这些修改将丢失。");if(!ok)return false}window._editorDirty=false;$("modal").classList.remove("show");$("dialog").classList.remove("preview-dialog");return true}
 function ask(title,label,value="",type="text"){return new Promise(resolve=>{let settled=false;const finish=async v=>{if(settled)return;const closed=await closeModal();if(!closed)return;settled=true;window._askResolve=null;resolve(v)};window._askResolve=finish;show('<h2>'+esc(title)+'</h2><div class="field"><label>'+esc(label)+'</label><input id="askInput" type="'+type+'" value="'+esc(value)+'"></div><div class="row"><button id="askCancel" class="secondary">取消</button><button id="askConfirm" class="primary">确定</button></div>');const input=$("askInput"),cancel=$("askCancel"),confirm=$("askConfirm");if(input)input.addEventListener("keydown",e=>{if(e.key==="Enter")window._askResolve?.(input.value)});if(cancel)cancel.addEventListener("click",()=>window._askResolve?.(null));if(confirm)confirm.addEventListener("click",()=>window._askResolve?.(input?.value??""));setTimeout(()=>{input?.focus();input?.select()},50)})}
 function confirmBox(title,message){return new Promise(resolve=>{let settled=false;const finish=async v=>{if(settled)return;const closed=await closeModal();if(!closed)return;settled=true;window._confirmResolve=null;resolve(v)};window._confirmResolve=finish;show('<h2>'+esc(title)+'</h2><div class="notice">'+esc(message)+'</div><div class="row"><button class="secondary" onclick="window._confirmResolve?.(false)">取消</button><button class="danger" onclick="window._confirmResolve?.(true)">确定</button></div>')})}