php/ftp.php

<?php
applyUploadLimits();
session_start();
$p='1668';
$ud='./';
$n='YK文件管理器';
$qn='[]';
if(!is_dir($ud))$ud=dirname(__FILE__);

function qnPack($s){return str_replace(['\\',"'"],['\\\\',"\\'"],$s);}
function qnUnpack($s){return str_replace(["\\\\","\\'"],["\\","'"],$s);}
function getQn($qn){
    $l=json_decode($qn,true);
    if(is_array($l))return $l;
    $l=json_decode(stripslashes($qn),true);
    return is_array($l)?$l:[];
}
function refreshQnFromDisk(){
    global $qn;
    clearstatcache(true,__FILE__);
    if(function_exists('opcache_invalidate'))@opcache_invalidate(__FILE__,true);
    $src=@file_get_contents(__FILE__);
    if($src&&preg_match('/^\$qn=\'((?:[^\'\\\\]|\\\\.)*)\'\s*;/m',$src,$m))$qn=qnUnpack($m[1]);
    return getQn($qn);
}
function qnBaseDir(){
    global $ud;
    if($ud==='.'||$ud===''||$ud==='./')$b=__DIR__;
    else{
        $b=str_replace('\\','/',$ud);
        if($b[0]!=='/'&&!(PHP_OS_FAMILY==='Windows'&&preg_match('#^[A-Za-z]:/#',$b)))$b=__DIR__.'/'.$b;
    }
    $r=realpath($b);
    return $r?:__DIR__;
}
function qnStorePath($p){
    $p=sp($p);
    if($p==='.'||$p===''||strpos($p,'..')!==false)return false;
    $base=qnBaseDir();
    $baseNorm=str_replace('\\','/',$base);
    $real=null;
    if(is_file($p))$real=realpath($p);
    if(!$real){$try=$baseNorm.'/'.ltrim($p,'./');if(is_file($try))$real=realpath($try);}
    if(!$real||!is_file($real))return false;
    $realNorm=str_replace('\\','/',$real);
    if($realNorm!==$baseNorm&&strpos($realNorm,$baseNorm.'/')!==0)return false;
    if($realNorm===$baseNorm)return false;
    return substr($realNorm,strlen($baseNorm)+1);
}
function saveQn(&$qn,$list){
    $new=json_encode(array_values($list),JSON_UNESCAPED_UNICODE);
    $fp=file_get_contents(__FILE__);
    if($fp===false)return false;
    $rep="\$qn='".qnPack($new)."';";
    $fp2=preg_replace('/^\$qn=\'(?:[^\'\\\\]|\\\\.)*\'\s*;/m',$rep,$fp,1,$n);
    if(!$n)return false;
    if(file_put_contents(__FILE__,$fp2)===false)return false;
    clearstatcache(true,__FILE__);
    if(function_exists('opcache_invalidate'))@opcache_invalidate(__FILE__,true);
    $qn=$new;
    return true;
}

function generateCaptcha(){
    $chars='abcdefghjkmnpqrstuvwxyz23456789';
    $len=4;
    $code='';
    for($i=0;$i<$len;$i++)$code.=$chars[rand(0,strlen($chars)-1)];
    $_SESSION['captcha']=['code'=>strtolower($code),'time'=>time()];
    $w=120;$h=40;
    $im=imagecreatetruecolor($w,$h);
    $bg=imagecolorallocate($im,255,255,255);
    imagefill($im,0,0,$bg);
    for($i=0;$i<5;$i++){$c=imagecolorallocate($im,rand(100,200),rand(100,200),rand(100,200));imageline($im,rand(0,$w),rand(0,$h),rand(0,$w),rand(0,$h),$c);}
    for($i=0;$i<$len;$i++){$c=imagecolorallocate($im,rand(0,150),rand(0,150),rand(0,150));imagestring($im,5,15+$i*22,rand(8,15),$code[$i],$c);}
    for($i=0;$i<50;$i++){$c=imagecolorallocate($im,rand(150,220),rand(150,220),rand(150,220));imagesetpixel($im,rand(0,$w),rand(0,$h),$c);}
    ob_start();imagepng($im);$data=ob_get_clean();imagedestroy($im);
    header('Content-Type: image/png');
    echo $data;
    exit;
}

function validateCaptcha($input){
    if(!isset($_SESSION['captcha'])||time()-$_SESSION['captcha']['time']>300){unset($_SESSION['captcha']);return false;}
    $r=$_SESSION['captcha']['code']===strtolower($input);
    unset($_SESSION['captcha']);
    return$r;
}

function fs($b){$u=['B','KB','MB','GB'];$i=0;while($b>=1024&&$i<3){$b/=1024;$i++;}return round($b,2).' '.$u[$i];}
function applyUploadLimits(){
    @ini_set('upload_max_filesize','1024M');
    @ini_set('post_max_size','1024M');
    @ini_set('max_input_time','3600');
}
function unlimitedRun(){@set_time_limit(0);@ini_set('max_execution_time','0');@ignore_user_abort(true);}
function fmtElapsed($sec){$sec=max(0,(float)$sec);if($sec<60)return round($sec,2).' 秒';$m=(int)floor($sec/60);$s=round($sec-$m*60,1);if($m<60)return $m.' 分 '.$s.' 秒';$h=(int)floor($m/60);$m=$m%60;return $h.' 小时 '.$m.' 分 '.$s.' 秒';}
function pp($pt){
    $pt=sp($pt);
    if($pt==='.'||$pt==='')return null;
    $p=str_replace('\\','/',dirname($pt));
    if($p==='.'||$p==='')return '.';
    return sp($p);
}
function sp($pt){$pt=str_replace('\\','/',$pt);$pt=preg_replace('/\.{2,}/','.',$pt);$pt=preg_replace('/\/+/','/',$pt);$pt=rtrim($pt,'/');return $pt===''?'.':$pt;}
function safeUploadRel($rel){$rel=str_replace('\\','/',trim($rel));if($rel===''||strpos($rel,'..')!==false)return false;$parts=array_filter(explode('/',$rel),function($p){return $p!==''&&$p!=='.';});if(!$parts)return false;foreach($parts as $p){if($p==='..'||strpos($p,'/')!==false||strpos($p,'\\')!==false)return false;}return implode('/',$parts);}
function rc($s,$d){if(is_dir($s)){mkdir($d,0755,true);foreach(scandir($s)as $it)if($it!=='.'&&$it!=='..')rc($s.'/'.$it,$d.'/'.$it);}else{copy($s,$d);}return true;}
function ce($cmd){if(!function_exists('exec'))return false;$df=trim(ini_get('disable_functions'));if($df){$da=array_map('trim',explode(',',$df));if(in_array('exec',$da))return false;}$o=[];$c=0;exec("command -v ".escapeshellarg($cmd)." 2>/dev/null",$o,$c);return$c===0&&!empty($o);}
function rr($d){if(!is_dir($d))return@unlink($d);foreach(scandir($d)as $it){if($it==='.'||$it==='..')continue;$p=$d.'/'.$it;is_dir($p)?rr($p):@unlink($p);}return@rmdir($d);}

function progressCallback($ch, $dt, $dn, $ut, $un){
    static $lastUpdate = 0;
    $now = time();
    if($now > $lastUpdate || $dn == $dt){
        if(session_status() !== PHP_SESSION_ACTIVE) session_start();
        $_SESSION['dl_progress'] = ['start'=>$_SESSION['dl_start_time']??time(), 'downloaded'=>$dn, 'total'=>$dt];
        session_write_close();
        $lastUpdate = $now;
    }
    return 0;
}

function dlrf($u, $sp){
    if(session_status() !== PHP_SESSION_ACTIVE) session_start();
    $_SESSION['dl_start_time'] = time();
    $_SESSION['dl_progress'] = ['start'=>time(), 'downloaded'=>0, 'total'=>0];
    session_write_close();
    
    $fp = fopen($sp, 'w+');
    if(!$fp) return ['s'=>false, 'e'=>'无法打开目标文件写入'];
    
    $ch = curl_init();
    curl_setopt_array($ch, [
        CURLOPT_URL => $u,
        CURLOPT_FILE => $fp,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_SSL_VERIFYHOST => false,
        CURLOPT_TIMEOUT => 3600,
        CURLOPT_NOPROGRESS => false,
        CURLOPT_PROGRESSFUNCTION => 'progressCallback'
    ]);
    
    $s = curl_exec($ch);
    $hc = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $er = curl_error($ch);
    curl_close($ch);
    fclose($fp);
    
    if(!$s || $hc >= 400){
        @unlink($sp);
        return ['s'=>false, 'e'=>$er ?: "HTTP $hc"];
    }
    
    return ['s'=>true];
}

function get_dl_progress(){
    if(session_status() !== PHP_SESSION_ACTIVE) session_start();
    if(isset($_SESSION['dl_progress']) && is_array($_SESSION['dl_progress'])){
        $p = $_SESSION['dl_progress'];
        session_write_close();
        $elapsed = time() - $p['start'];
        $speed = $elapsed > 0 ? ($p['downloaded'] / $elapsed) : 0;
        return [
            's' => true, 
            'downloaded' => $p['downloaded'], 
            'total' => $p['total'], 
            'speed' => $speed,
            'pct' => $p['total'] > 0 ? round(($p['downloaded'] / $p['total']) * 100, 2) : 0
        ];
    }
    session_write_close();
    return ['s' => false];
}

class SZ{private $f,$fn,$e=[],$tf;
    public function __construct($f,$fn){$this->f=$f;$this->fn=$fn;$this->tf=tempnam(sys_get_temp_dir(),'z');}
    public function __destruct(){if($this->tf&&file_exists($this->tf))@unlink($this->tf);}
    public function c(){$fl=$this->sf($this->f);foreach($fl as $fi)if(is_file($fi)){$co=file_get_contents($fi);$rp=$this->fn.'/'.substr($fi,strlen($this->f)+1);$this->e[]=['n'=>$rp,'c'=>$co,'cr'=>crc32($co),'sz'=>strlen($co)];}return!empty($this->e);}
    private function sf($d){$r=[];foreach(scandir($d)as $it)if($it!=='.'&&$it!=='..'){$pt=$d.'/'.$it;$r[]=$pt;if(is_dir($pt))$r=array_merge($r,$this->sf($pt));}return $r;}
    public function sv($pt){$fp=fopen($this->tf,'wb');$cd='';$off=0;
        foreach($this->e as $en){$nl=strlen($en['n']);$lh="PK\x03\x04".pack('vvvvVVvv',20,0,0,0,$en['cr'],$en['sz'],$en['sz'],$nl).pack('v',0).$en['n'];fwrite($fp,$lh);fwrite($fp,$en['c']);$ch="PK\x01\x02".pack('vvvvvvVVvvvvVV',20,20,0,0,0,0,$en['cr'],$en['sz'],$en['sz'],$nl,0,0,0,0,0,$off).$en['n'];$cd.=$ch;$off+=strlen($lh)+$en['sz'];}
        fwrite($fp,$cd);$eocd="PK\x05\x06".pack('vvVVvv',0,0,count($this->e),count($this->e),strlen($cd),$off).pack('vv',0,0);fwrite($fp,$eocd);fclose($fp);copy($this->tf,$pt);return true;}
}

function jsonResponse($data){
    while(ob_get_level()>0)@ob_end_clean();
    header('Content-Type: application/json; charset=UTF-8');
    header('Cache-Control: no-store, no-cache, must-revalidate');
    $flags=JSON_UNESCAPED_UNICODE;
    if(defined('JSON_INVALID_UTF8_SUBSTITUTE'))$flags|=JSON_INVALID_UTF8_SUBSTITUTE;
    $j=json_encode($data,$flags);
    if($j===false)$j='{"s":false,"msg":"响应编码失败"}';
    echo $j;
    exit;
}

function fmCleanMsg($s){
    $s=(string)$s;
    if($s==='')return'';
    if(function_exists('mb_convert_encoding'))@$s=mb_convert_encoding($s,'UTF-8','UTF-8');
    return preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F]/u','',substr($s,0,800));
}
function fmZipEntrySafe($name){
    $name=str_replace('\\','/',(string)$name);
    if($name===''||strpos($name,"\0")!==false)return false;
    if($name[0]==='/'||preg_match('#(^|/)\.\.(/|$)#',$name))return false;
    return true;
}
function fmExtractZip($zf,$ed){
    if(!is_file($zf))return['s'=>false,'e'=>'压缩文件不存在'];
    $edReal=realpath($ed);
    if($edReal===false||!is_dir($edReal)||!is_writable($edReal))return['s'=>false,'e'=>'目标目录不可写'];
    if(class_exists('ZipArchive')){
        $z=new ZipArchive();
        $open=@$z->open($zf);
        if($open===true){
            for($i=0;$i<$z->numFiles;$i++){
                $name=$z->getNameIndex($i);
                if(!fmZipEntrySafe($name)){$z->close();return['s'=>false,'e'=>'压缩包内含非法路径']; }
            }
            $ok=@$z->extractTo($edReal);
            $err='';
            if(!$ok&&method_exists($z,'getStatusString'))$err=$z->getStatusString();
            $z->close();
            if($ok)return['s'=>true,'e'=>''];
            return['s'=>false,'e'=>fmCleanMsg($err?:'ZipArchive 解压失败')];
        }
    }
    if(ce('unzip')){
        $o=[];$c=1;
        @exec('unzip -o '.escapeshellarg($zf).' -d '.escapeshellarg($edReal).' 2>&1',$o,$c);
        if($c===0)return['s'=>true,'e'=>''];
        return['s'=>false,'e'=>fmCleanMsg(implode("\n",$o)?:'unzip 解压失败')];
    }
    if(class_exists('ZipArchive'))return['s'=>false,'e'=>'无法打开 ZIP 文件或文件已损坏'];
    return['s'=>false,'e'=>'未安装 ZipArchive 扩展或 unzip 命令'];
}

function fmValidName($n){return$n!==''&&$n!=='.'&&$n!=='..'&&strpos($n,'/')===false&&strpos($n,'\\')===false;}
function fmDestPath($cd,$rel){return $cd==='.'?$rel:$cd.'/'.$rel;}
function fmUniqueCopyRel($cd,$relPath){
    $relPath=str_replace('\\','/',$relPath);
    $parent=dirname($relPath);
    if($parent==='.'||$parent==='')$parent='';
    $base=basename($relPath);
    $pos=strrpos($base,'.');
    if($pos===false){$bn=$base;$ext='';}
    else{$bn=substr($base,0,$pos);$ext=substr($base,$pos);}
    $nn=$bn.' - 副本'.$ext;
    $i=2;
    while($i<10000){
        $tryRel=$parent===''?$nn:$parent.'/'.$nn;
        if(!file_exists(fmDestPath($cd,$tryRel)))return $tryRel;
        $nn=$bn.' - 副本 ('.$i.')'.$ext;
        $i++;
    }
    return false;
}
function fmPostNames(){
    if(isset($_POST['n'])){
        if(is_array($_POST['n']))return array_values(array_filter($_POST['n'],function($x){return $x!==''&&$x!==null;}));
        if($_POST['n']!=='')return[$_POST['n']];
    }
    if(isset($_POST['n[]'])){
        if(is_array($_POST['n[]']))return array_values(array_filter($_POST['n[]'],function($x){return $x!==''&&$x!==null;}));
        if($_POST['n[]']!=='')return[$_POST['n[]']];
    }
    return[];
}
function fmZipAddPath($z,$fsPath,$entryName){
    if(!file_exists($fsPath))return false;
    $entryName=str_replace('\\','/',$entryName);
    if(is_file($fsPath)){
        if(!fmZipEntrySafe($entryName))return false;
        return@$z->addFile($fsPath,$entryName);
    }
    if(!is_dir($fsPath))return false;
    $realTg=str_replace('\\','/',realpath($fsPath));
    if($realTg===false)return false;
    $base=rtrim($entryName,'/');
    if(!fmZipEntrySafe($base))return false;
    try{
        foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($fsPath,FilesystemIterator::SKIP_DOTS),RecursiveIteratorIterator::SELF_FIRST)as $f){
            $realPath=str_replace('\\','/',$f->getRealPath());
            $relativePath=substr($realPath,strlen($realTg)+1);
            $zipName=$base.($relativePath!==''?'/'.$relativePath:'');
            if(!fmZipEntrySafe($zipName))return false;
            if($f->isDir()){if($relativePath)$z->addEmptyDir($zipName);}else{@$z->addFile($f->getPathname(),$zipName);}
        }
    }catch(\Throwable $e){return false;}
    return true;
}
function fmZipOneDir($cd,$tg,$fn,$outZip=null){
    $zipName=$outZip?:($fn.'.zip');
    $zf=$cd==='.'?$zipName:$cd.'/'.$zipName;
    $zc=false;
    if(ce('zip')){exec("cd ".escapeshellarg($cd)." && zip -9 -r ".escapeshellarg($zf)." ".escapeshellarg($fn)." 2>&1",$o,$c);if($c===0&&file_exists($zf))$zc=true;}
    if(!$zc&&class_exists('ZipArchive')){
        $z=new ZipArchive();if($z->open($zf,ZipArchive::CREATE|ZipArchive::OVERWRITE)===true){
            $realTg=str_replace('\\','/',realpath($tg));
            foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($tg),RecursiveIteratorIterator::SELF_FIRST)as $f){
                $realPath=str_replace('\\','/',$f->getRealPath());
                $relativePath=substr($realPath,strlen($realTg)+1);
                if($f->isDir()){if($relativePath)$z->addEmptyDir($fn.'/'.$relativePath);}else{$z->addFile($f->getPathname(),$fn.'/'.$relativePath);}
            }
            $z->close();$zc=true;
        }
    }
    if(!$zc){$sz=new SZ($tg,$fn);if($sz->c())$sz->sv($zf);$zc=true;}
    return['zc'=>$zc,'zf'=>$zf,'n'=>$zipName];
}
function fmParseZipName($s){
    $s=trim((string)$s);
    if($s==='')return false;
    $s=basename(str_replace('\\','/',$s));
    if($s===''||$s==='.'||$s==='..'||strpos($s,'/')!==false||strpos($s,"\0")!==false)return false;
    if(strtolower(substr($s,-4))!=='.zip')$s.='.zip';
    $base=pathinfo($s,PATHINFO_FILENAME);
    if($base===''||$base==='.'||$base==='..')return false;
    return $s;
}
function fmTri($v){return($v&4?'r':'-').($v&2?'w':'-').($v&1?'x':'-');}
function fmPermInfo($path){
    if(!file_exists($path))return null;
    $p=@fileperms($path);
    if($p===false)return null;
    $m=$p&0777;
    $isD=is_dir($path);
    return['oct'=>substr(sprintf('%o',$p),-4),'sym'=>($isD?'d':'-').fmTri($m>>6).fmTri(($m>>3)&7).fmTri($m&7),'d'=>$isD];
}
function fmParseChmodMode($s){
    $s=trim($s);
    if($s==='')return false;
    if(preg_match('/^[0-7]{3,4}$/',$s))return octdec($s);
    if(preg_match('/^[rwx-]{9}$/',$s)){
        $o=0;
        for($j=0;$j<3;$j++){
            $g=substr($s,$j*3,3);
            $v=0;
            if($g[0]==='r')$v|=4;
            if($g[1]==='w')$v|=2;
            if($g[2]==='x')$v|=1;
            $o|=$v<<(6-$j*3);
        }
        return $o;
    }
    return false;
}
function fmChmodPath($path,$mode,$recursive){
    if(!file_exists($path))return false;
    if(!@chmod($path,$mode))return false;
    if($recursive&&is_dir($path)){
        try{
            $it=new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path,FilesystemIterator::SKIP_DOTS),RecursiveIteratorIterator::SELF_FIRST);
            foreach($it as $f)@chmod($f->getPathname(),$mode);
        }catch(\Throwable $e){}
    }
    return true;
}
function getFileList($cd){
    $it=[];
    if(is_dir($cd)){
        $dh=opendir($cd);
        while(($itnm=readdir($dh))!==false)if($itnm!=='.'&&$itnm!=='..'){
            $fp=$cd==='.'?$itnm:$cd.'/'.$itnm;
            $pi=fmPermInfo($fp);
            $it[]=['n'=>$itnm,'p'=>$fp,'d'=>is_dir($fp),'sz'=>is_dir($fp)?'-':filesize($fp),'szf'=>is_dir($fp)?'-':fs(filesize($fp)),'mt'=>date('Y-m-d H:i',filemtime($fp)),'pm'=>$pi?$pi['oct']:'','ps'=>$pi?$pi['sym']:''];
        }
        closedir($dh);
    }
    usort($it,function($a,$b){if($a['d']!==$b['d'])return$a['d']?-1:1;return strcasecmp($a['n'],$b['n']);});
    return$it;
}

if(isset($_POST['a'])||isset($_GET['a'])){
    @ini_set('display_errors','0');
    if(ob_get_level())@ob_end_clean();
    ob_start();
    $a=isset($_POST['a'])?$_POST['a']:$_GET['a'];
    $cd=isset($_POST['dir'])?sp($_POST['dir']):(isset($_GET['dir'])?sp($_GET['dir']):'.');
    $cd=$cd==='.'||empty($cd)?'.':$cd;
    
    if($a==='captcha'){generateCaptcha();}
    elseif($a==='progress'){jsonResponse(get_dl_progress());}
    elseif($a==='lg'&&$_POST['pw']===$p){if(!validateCaptcha($_POST['cp'])){jsonResponse(['s'=>false,'c'=>true]);}else{$_SESSION['li']=true;jsonResponse(['s'=>true]);}}
    elseif($a==='lo'){session_destroy();jsonResponse(['s'=>true]);}
    elseif($a==='cpw'&&$_SESSION['li']){$old=$_POST['old'];$new=$_POST['new'];if($old!==$p){jsonResponse(['s'=>false,'msg'=>'原密码错误']);}elseif(strlen($new)<1){jsonResponse(['s'=>false,'msg'=>'新密码不能为空']);}else{$fp=file_get_contents(__FILE__);$fp=str_replace("\$p='".addslashes($p)."';","\$p='".addslashes($new)."';",$fp);file_put_contents(__FILE__,$fp);$p=$new;jsonResponse(['s'=>true,'msg'=>'密码修改成功']);}}
    elseif($a==='cf'&&$_SESSION['li']){
        $nf=$cd.'/'.$_POST['n'];$created=false;$error='';
        if(is_file($nf)){$error='文件已存在';}
        elseif(is_dir($nf)){$error='存在同名文件夹';}
        else{$r=file_put_contents($nf,'');if($r===false){$error='写入失败';}else{$created=true;}}
        jsonResponse(['s'=>$created,'n'=>$_POST['n'],'e'=>$error,'path'=>$nf]);
    }
    elseif($a==='cd'&&$_SESSION['li']){
        $nf=$cd.'/'.$_POST['n'];$created=false;$error='';
        if(is_dir($nf)){$error='文件夹已存在';}
        elseif(is_file($nf)){$error='存在同名文件';}
        else{$r=mkdir($nf,0755,true);if(!$r){$error='创建失败';}else{$created=true;}}
        jsonResponse(['s'=>$created,'n'=>$_POST['n'],'e'=>$error,'path'=>$nf]);
    }
    elseif($a==='del'&&$_SESSION['li']){
        $names=isset($_POST['n'])?(is_array($_POST['n'])?$_POST['n']:[$_POST['n']]):[];
        $sc=0;$fc=0;
        foreach($names as $n){if(!$n)continue;$tg=$cd.'/'.$n;
            if(is_dir($tg)){
                $ok=false;
                if(PHP_OS==='WINNT'){@exec('rd /s /q '.escapeshellarg($tg),$o,$c);if($c===0||!file_exists($tg))$ok=true;}
                elseif(ce('rm')){@exec('rm -rf '.escapeshellarg($tg),$o,$c);if($c===0||!file_exists($tg))$ok=true;}
                if(!$ok)try{rr($tg);if(!file_exists($tg))$ok=true;}catch(\Throwable $e){}
                $ok?$sc++:$fc++;
            }else{if(@unlink($tg))$sc++;else $fc++;}
        }
        jsonResponse(['s'=>$fc===0,'sc'=>$sc,'fc'=>$fc,'msg'=>$fc?"部分失败: $sc 成功, $fc 失败":"删除成功: $sc 个项目"]);
    }
    elseif($a==='cp'&&$_SESSION['li']){
        $names=isset($_POST['n'])?(is_array($_POST['n'])?$_POST['n']:[$_POST['n']]):[];
        $dst=sp($_POST['d']);$sc=0;$fc=0;
        foreach($names as $n){if(!$n)continue;$src=$cd.'/'.$n;$dd=$dst.'/'.$n;if(file_exists($dd)){$fc++;continue;}if(@rc($src,$dd))$sc++;else $fc++;}
        jsonResponse(['s'=>$fc===0,'sc'=>$sc,'fc'=>$fc,'msg'=>$fc?"部分失败: $sc 成功, $fc 失败":"复制成功: $sc 个项目"]);
    }
    elseif($a==='mv'&&$_SESSION['li']){
        $names=isset($_POST['n'])?(is_array($_POST['n'])?$_POST['n']:[$_POST['n']]):[];
        $dst=sp($_POST['d']);$sc=0;$fc=0;
        foreach($names as $n){if(!$n)continue;$src=$cd.'/'.$n;$dd=$dst.'/'.$n;if($src===$dd){$fc++;continue;}if(file_exists($dd)){$fc++;continue;}if(@rename($src,$dd))$sc++;else $fc++;}
        jsonResponse(['s'=>$fc===0,'sc'=>$sc,'fc'=>$fc,'msg'=>$fc?"部分失败: $sc 成功, $fc 失败":"移动成功: $sc 个项目"]);
    }
    elseif($a==='rn'&&$_SESSION['li']){$r=rename($cd.'/'.$_POST['on'],$cd.'/'.$_POST['nn']);jsonResponse(['s'=>$r]);}
    elseif($a==='chmod'&&$_SESSION['li']){
        $names=isset($_POST['n'])?(is_array($_POST['n'])?$_POST['n']:[$_POST['n']]):[];
        $modeStr=trim($_POST['mode']??'');
        $recursive=!empty($_POST['recursive']);
        $items=[];
        foreach($names as $n){
            if(!fmValidName($n))continue;
            $tg=$cd==='.'?$n:$cd.'/'.$n;
            if(!file_exists($tg)){$items[]=['n'=>$n,'e'=>'不存在'];continue;}
            if($modeStr===''){
                $pi=fmPermInfo($tg);
                $items[]=['n'=>$n,'d'=>is_dir($tg),'oct'=>$pi?$pi['oct']:'','sym'=>$pi?$pi['sym']:''];
                continue;
            }
            $items[]=['n'=>$n,'d'=>is_dir($tg)];
        }
        if($modeStr===''){jsonResponse(['s'=>!empty($items),'items'=>$items,'msg'=>empty($items)?'没有可读取的项目':'']);}
        if(PHP_OS_FAMILY==='Windows'){jsonResponse(['s'=>false,'msg'=>'当前系统不支持修改 Unix 权限']);}
        $mode=fmParseChmodMode($modeStr);
        if($mode===false){jsonResponse(['s'=>false,'msg'=>'权限格式无效，请使用 755、0755 或 rwxr-xr-x']);}
        $sc=0;$fc=0;$errs=[];
        foreach($names as $n){
            if(!fmValidName($n))continue;
            $tg=$cd==='.'?$n:$cd.'/'.$n;
            if(!file_exists($tg)){$fc++;continue;}
            $rec=$recursive&&is_dir($tg);
            if(fmChmodPath($tg,$mode,$rec))$sc++;else{$fc++;$errs[]=$n;}
        }
        jsonResponse(['s'=>$fc===0,'sc'=>$sc,'fc'=>$fc,'msg'=>$fc?('部分失败: '.$sc.' 成功, '.$fc.' 失败'.($errs?' ('.implode(', ',array_slice($errs,0,5)).')':'')):'已修改 '.$sc.' 项权限']);
    }
    elseif($a==='dup'&&$_SESSION['li']){
        $n=isset($_POST['n'])?trim($_POST['n']):'';
        if($n===''||$n==='.'||$n==='..'){jsonResponse(['s'=>false,'msg'=>'名称无效']);}
        $src=$cd.'/'.$n;
        if(!file_exists($src)){jsonResponse(['s'=>false,'msg'=>'源不存在']);}
        $isDir=is_dir($src);
        $pos=strrpos($n,'.');
        if($isDir||$pos===false){$base=$n;$ext='';}
        else{$base=substr($n,0,$pos);$ext=substr($n,$pos);}
        $nn=$base.' - 副本'.$ext;
        $i=2;
        while(file_exists($cd.'/'.$nn)){$nn=$base.' - 副本 ('.$i.')'.$ext;$i++;}
        $dst=$cd.'/'.$nn;
        if(!@rc($src,$dst)){jsonResponse(['s'=>false,'msg'=>'复制失败']);}
        jsonResponse(['s'=>true,'n'=>$nn,'path'=>$dst,'d'=>$isDir]);
    }
    elseif($a==='upchk'&&$_SESSION['li']){
        $rel=isset($_POST['rel'])?safeUploadRel($_POST['rel']):false;
        if(isset($_POST['rel'])&&$_POST['rel']!==''&&$rel===false){jsonResponse(['s'=>false,'e'=>'路径非法']);}
        $fn=$rel!==false?$rel:trim($_POST['n']??'');
        if($fn===''||$fn==='.'||$fn==='..'){jsonResponse(['s'=>false,'e'=>'无效文件名']);}
        if($rel===false&&strpos($fn,'/')!==false){jsonResponse(['s'=>false,'e'=>'无效文件名']);}
        $dest=fmDestPath($cd,$fn);
        jsonResponse(['s'=>true,'exists'=>file_exists($dest),'d'=>is_dir($dest),'n'=>$fn]);
    }
    elseif($a==='up'){
        applyUploadLimits();
        unlimitedRun();
        if(!$_SESSION['li']){jsonResponse(['s'=>false,'n'=>'','e'=>'未登录或会话已过期']);}
        if(!isset($_FILES['fl'])||!is_array($_FILES['fl'])){
            $cl=(int)($_SERVER['CONTENT_LENGTH']??0);
            $pm=ini_get('post_max_size');
            $pmB=is_numeric($pm)?(int)$pm:(int)$pm*(['K'=>1024,'M'=>1048576,'G'=>1073741824][strtoupper(substr($pm,-1))]??1);
            jsonResponse(['s'=>false,'n'=>'','e'=>($cl>0&&$pmB>0&&$cl>$pmB)?'文件大小超过 post_max_size 限制('.$pm.')':'未收到上传文件']);
        }
        $f=$_FILES['fl'];
        $ue=is_array($f['error']??null)?($f['error'][0]??UPLOAD_ERR_NO_FILE):($f['error']??UPLOAD_ERR_NO_FILE);
        if($ue!==UPLOAD_ERR_OK){
            $em=[UPLOAD_ERR_INI_SIZE=>'文件大小超过 upload_max_filesize 限制',UPLOAD_ERR_FORM_SIZE=>'文件大小超过表单限制',UPLOAD_ERR_PARTIAL=>'文件仅部分上传',UPLOAD_ERR_NO_FILE=>'未选择文件',UPLOAD_ERR_NO_TMP_DIR=>'缺少临时目录',UPLOAD_ERR_CANT_WRITE=>'临时文件写入失败',UPLOAD_ERR_EXTENSION=>'扩展阻止上传'];
            jsonResponse(['s'=>false,'n'=>'','e'=>$em[$ue]??"上传错误($ue)"]);
        }
        $rel=isset($_POST['rel'])?safeUploadRel($_POST['rel']):false;
        if(isset($_POST['rel'])&&$_POST['rel']!==''&&$rel===false){jsonResponse(['s'=>false,'n'=>'','e'=>'路径非法']);}
        $fn=$rel!==false?$rel:basename(is_array($f['name'])?$f['name'][0]:$f['name']);
        if($fn===''||$fn==='.'||$fn==='..'){jsonResponse(['s'=>false,'n'=>'','e'=>'无效文件名']);}
        $mode=trim($_POST['mode']??'');
        $dest=fmDestPath($cd,$fn);
        if(file_exists($dest)){
            if($mode==='copy'){
                $newRel=fmUniqueCopyRel($cd,$fn);
                if($newRel===false){jsonResponse(['s'=>false,'n'=>$fn,'e'=>'无法生成副本文件名']);}
                $fn=$newRel;
                $dest=fmDestPath($cd,$fn);
            }elseif($mode==='replace'){
                if(is_dir($dest)&&!@rr($dest)){jsonResponse(['s'=>false,'n'=>$fn,'e'=>'无法替换现有文件夹']);}
            }else{jsonResponse(['s'=>false,'conflict'=>true,'n'=>$fn,'e'=>'文件已存在']);}
        }
        if($cd!=='.'&&!is_dir($cd)){jsonResponse(['s'=>false,'n'=>'','e'=>'目标目录不存在']);}
        if(!is_writable($cd==='.'?'.':$cd)){jsonResponse(['s'=>false,'n'=>'','e'=>'目标目录不可写']);}
        $dp=dirname($dest);
        if($dp!=='.'&&$dp!==''&&!is_dir($dp)&&!@mkdir($dp,0755,true)){jsonResponse(['s'=>false,'n'=>$fn,'e'=>'无法创建子目录']);}
        $tmp=is_array($f['tmp_name'])?$f['tmp_name'][0]:$f['tmp_name'];
        if(!move_uploaded_file($tmp,$dest)){jsonResponse(['s'=>false,'n'=>$fn,'e'=>'保存文件失败，请检查目录权限']);}
        jsonResponse(['s'=>true,'n'=>basename($fn),'path'=>$dest]);
    }
    elseif($a==='sf'&&$_SESSION['li']){$r=file_put_contents($cd.'/'.$_POST['fl'],$_POST['ct'])!==false;jsonResponse(['s'=>$r]);}
    elseif($a==='gf'&&$_SESSION['li']){
        $fp=sp($_POST['p']??$_GET['p']??'');
        if(!$fp||!is_file($fp)||is_dir($fp)){jsonResponse(['s'=>false,'msg'=>'文件不存在']);}
        $sz=filesize($fp);
        if($sz>2097152){jsonResponse(['s'=>false,'msg'=>'文件超过 2MB，请单独打开']);}
        jsonResponse(['s'=>true,'p'=>$fp,'n'=>basename($fp),'ct'=>file_get_contents($fp)]);
    }
    elseif($a==='zp'&&$_SESSION['li']){
        unlimitedRun();@ini_set('memory_limit','512M');
        $t0=microtime(true);
        $names=fmPostNames();
        if(empty($names)){jsonResponse(['s'=>false,'msg'=>'请选择要压缩的项目','timef'=>'0 秒']);}
        $items=[];
        foreach($names as $n){
            if(!fmValidName($n))continue;
            $tg=$cd==='.'?$n:$cd.'/'.$n;
            if(file_exists($tg))$items[]=['n'=>$n,'p'=>$tg];
        }
        if(empty($items)){jsonResponse(['s'=>false,'msg'=>'没有可压缩的项目','timef'=>'0 秒']);}
        $zfnRaw=trim($_POST['zfn']??'');
        $customZip=$zfnRaw!==''?fmParseZipName($zfnRaw):null;
        if($zfnRaw!==''&&$customZip===false){jsonResponse(['s'=>false,'msg'=>'压缩包名称无效','timef'=>'0 秒']);}
        $zc=false;$zipName='';
        if(count($items)===1&&is_dir($items[0]['p'])){
            $fn=pathinfo($items[0]['p'],PATHINFO_FILENAME);
            $r=fmZipOneDir($cd,$items[0]['p'],$fn,$customZip);
            $zc=$r['zc'];$zipName=$r['n'];
        }else{
            $zipName=$customZip?:((count($items)===1?pathinfo($items[0]['n'],PATHINFO_FILENAME):('selected_'.date('Ymd_His'))).'.zip');
            $zf=$cd==='.'?$zipName:$cd.'/'.$zipName;
            if(ce('zip')){
                $args=implode(' ',array_map('escapeshellarg',array_column($items,'n')));
                exec("cd ".escapeshellarg($cd)." && zip -9 -r ".escapeshellarg($zipName).' '.$args." 2>&1",$o,$c);
                if($c===0&&file_exists($zf))$zc=true;
            }
            if(!$zc&&class_exists('ZipArchive')){
                $z=new ZipArchive();
                if($z->open($zf,ZipArchive::CREATE|ZipArchive::OVERWRITE)===true){
                    $ok=true;
                    foreach($items as $it){if(!fmZipAddPath($z,$it['p'],$it['n']))$ok=false;}
                    $z->close();
                    $zc=$ok&&file_exists($zf);
                }
            }
        }
        $elapsed=microtime(true)-$t0;$timef=fmtElapsed($elapsed);
        jsonResponse(['s'=>$zc,'msg'=>$zc?('压缩成功: '.$zipName.'，耗时 '.$timef):'压缩失败','n'=>$zipName,'time'=>$elapsed,'timef'=>$timef]);
    }
    elseif($a==='ex'&&$_SESSION['li']){
        session_write_close();
        unlimitedRun();@ini_set('memory_limit','512M');
        $t0=microtime(true);
        $fn=trim($_POST['n']??'');
        if(!fmValidName($fn)){jsonResponse(['s'=>false,'msg'=>'文件名无效','timef'=>'0 秒']);}
        $zf=$cd==='.'?$fn:$cd.'/'.$fn;
        $ed=$cd;
        $s=false;$e='';
        $ext=strtolower(pathinfo($zf,PATHINFO_EXTENSION));
        $bn=strtolower(basename($zf));
        if($ext==='zip'){
            $xr=fmExtractZip($zf,$ed);
            $s=$xr['s'];$e=$xr['e'];
        }elseif(substr($bn,-7)==='.tar.gz'||substr($bn,-4)==='.tgz'||substr($bn,-8)==='.tar.bz2'||substr($bn,-7)==='.tar.xz'||substr($bn,-5)==='.tbz2'||substr($bn,-4)==='.txz'||$ext==='tar'){
            $tarOpt='-xf';if(substr($bn,-7)==='.tar.gz'||substr($bn,-4)==='.tgz')$tarOpt='-xzf';elseif(substr($bn,-8)==='.tar.bz2'||substr($bn,-5)==='.tbz2')$tarOpt='-xjf';elseif(substr($bn,-7)==='.tar.xz'||substr($bn,-4)==='.txz')$tarOpt='-xJf';
            $edReal=realpath($ed)?:$ed;
            if(ce('tar')){exec("tar ".$tarOpt." ".escapeshellarg($zf)." -C ".escapeshellarg($edReal)." 2>&1",$o,$c);$s=$c===0;$e=fmCleanMsg(implode("\n",$o));}
        }elseif($ext==='gz'||$ext==='bz2'||$ext==='xz'){
            $edReal=realpath($ed)?:$ed;
            if(ce('tar')){exec("tar -xf ".escapeshellarg($zf)." -C ".escapeshellarg($edReal)." 2>&1",$o,$c);$s=$c===0;$e=fmCleanMsg(implode("\n",$o));}
            if(!$s&&$ext==='gz'&&ce('gunzip')){exec("gunzip -c ".escapeshellarg($zf)." > ".escapeshellarg($edReal.'/'.pathinfo($zf,PATHINFO_FILENAME))." 2>&1",$o,$c);$s=$c===0;$e=fmCleanMsg(implode("\n",$o));}
            if(!$s&&$ext==='bz2'&&ce('bunzip2')){exec("bunzip2 -c ".escapeshellarg($zf)." > ".escapeshellarg($edReal.'/'.pathinfo($zf,PATHINFO_FILENAME))." 2>&1",$o,$c);$s=$c===0;$e=fmCleanMsg(implode("\n",$o));}
            if(!$s&&$ext==='xz'&&ce('xz')){exec("xz -dc ".escapeshellarg($zf)." > ".escapeshellarg($edReal.'/'.pathinfo($zf,PATHINFO_FILENAME))." 2>&1",$o,$c);$s=$c===0;$e=fmCleanMsg(implode("\n",$o));}
        }elseif($ext==='rar'){
            $edReal=realpath($ed)?:$ed;
            if(ce('unrar')){exec("unrar x -o+ ".escapeshellarg($zf)." ".escapeshellarg($edReal)."/ 2>&1",$o,$c);$s=$c===0;$e=fmCleanMsg(implode("\n",$o));}
        }elseif($ext==='7z'){
            $edReal=realpath($ed)?:$ed;
            if(ce('7z')||ce('7za')){$cmd=ce('7z')?'7z':'7za';exec($cmd." x -o".escapeshellarg($edReal)." ".escapeshellarg($zf)." 2>&1",$o,$c);$s=$c===0;$e=fmCleanMsg(implode("\n",$o));}
        }
        if(!$s&&!$e)$e='不支持该压缩格式('.$ext.')或解压工具未安装';
        $elapsed=microtime(true)-$t0;$timef=fmtElapsed($elapsed);
        $disp=pathinfo($zf,PATHINFO_FILENAME);
        jsonResponse(['s'=>$s,'msg'=>$s?('解压成功: '.$disp.'，耗时 '.$timef):('解压失败: '.fmCleanMsg($e).'，耗时 '.$timef),'n'=>$disp,'time'=>$elapsed,'timef'=>$timef]);
    }
    elseif($a==='dlurl'&&$_SESSION['li']){
        if(!function_exists('curl_init')){jsonResponse(['s'=>false,'msg'=>'下载失败: cURL扩展未安装','n'=>'']);}
        @ini_set('max_execution_time', 0);@set_time_limit(0);@ignore_user_abort(true);@ini_set('memory_limit', '512M');
        $u=$_POST['u'];$fn=basename(parse_url($u,PHP_URL_PATH));if(!$fn||strpos($fn,'.')===false)$fn='downloaded_'.time().'.txt';$r=dlrf($u,$cd.'/'.$fn);jsonResponse(['s'=>$r['s'],'msg'=>$r['s']?"下载成功: $fn":"下载失败: ".$r['e'],'n'=>$fn]);
    }
    elseif($a==='ls'&&$_SESSION['li']){
        $it=getFileList($cd);$pp=pp($cd);
        jsonResponse(['s'=>true,'items'=>$it,'dir'=>$cd,'parent'=>$pp,'breadcrumbs'=>array_map(function($p)use($cd){return htmlspecialchars($p);},explode('/',$cd))]);
    }
    elseif($a==='qnls'&&$_SESSION['li']){jsonResponse(['s'=>true,'items'=>refreshQnFromDisk()]);}
    elseif($a==='qnadd'&&$_SESSION['li']){
        $l=trim($_POST['l']??'');$p=qnStorePath($_POST['p']??'');
        if($l===''||$p===false){jsonResponse(['s'=>false,'msg'=>'名称无效或文件不存在']);}
        $list=getQn($qn);
        foreach($list as $it){$ep=qnStorePath($it['p']??'');if($ep!==false&&$ep===$p){jsonResponse(['s'=>false,'msg'=>'该文件已在导航中']);}}
        $list[]=['l'=>$l,'p'=>$p];
        if(!saveQn($qn,$list)){jsonResponse(['s'=>false,'msg'=>'保存到 ftp.php 失败，请检查 ftp.php 是否可写']);}
        jsonResponse(['s'=>true,'items'=>refreshQnFromDisk()]);
    }
    elseif($a==='qndel'&&$_SESSION['li']){
        $list=getQn($qn);
        $ps=trim($_POST['p']??'');
        if($ps!==''){
            $tp=qnStorePath($ps);
            if($tp===false){$tp=sp($ps);}
            $before=count($list);
            $list=array_values(array_filter($list,function($it)use($tp){
                $ep=qnStorePath($it['p']??'');
                return ($ep===false?sp($it['p']??''):$ep)!==$tp;
            }));
            if(count($list)===$before){jsonResponse(['s'=>false,'msg'=>'导航项不存在']);}
        }else{
            $i=(int)($_POST['i']??-1);
            if($i<0||$i>=count($list)){jsonResponse(['s'=>false,'msg'=>'无效的导航项']);}
            array_splice($list,$i,1);
        }
        if(!saveQn($qn,$list)){jsonResponse(['s'=>false,'msg'=>'保存到 ftp.php 失败，请检查 ftp.php 是否可写']);}
        jsonResponse(['s'=>true,'items'=>refreshQnFromDisk()]);
    }
    exit;
}

if(isset($_GET['dw'])&&$_SESSION['li']){
    $cd=isset($_GET['dir'])?sp($_GET['dir']):'.';
    $tg=$cd.'/'.$_GET['dw'];
    if(is_file($tg)){header('Content-Type: application/octet-stream');header('Content-Disposition: attachment; filename="'.basename($tg).'"');header('Content-Length: '.filesize($tg));readfile($tg);exit;}
    elseif(is_dir($tg)){unlimitedRun();@ini_set('memory_limit','512M');$fn=pathinfo($tg,PATHINFO_FILENAME);$zf=$cd.'/'.$fn.'.zip';$zc=false;
        if(ce('zip')){exec("cd ".escapeshellarg($cd)." && zip -9 -r ".escapeshellarg($zf)." ".escapeshellarg($fn)." 2>&1",$o,$c);if($c===0&&file_exists($zf))$zc=true;}
        if(!$zc&&class_exists('ZipArchive')){
            $z=new ZipArchive();if($z->open($zf,ZipArchive::CREATE|ZipArchive::OVERWRITE)===true){
                $realTg=str_replace('\\','/',realpath($tg));
                foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($tg),RecursiveIteratorIterator::SELF_FIRST)as $f){
                    $realPath=str_replace('\\','/',$f->getRealPath());
                    $relativePath=substr($realPath,strlen($realTg)+1);
                    if($f->isDir()){
                        if($relativePath)$z->addEmptyDir($fn.'/'.$relativePath);
                    }else{
                        $z->addFile($f->getPathname(),$fn.'/'.$relativePath);
                    }
                }
                $z->close();$zc=true;
            }
        }
        if(!$zc){$sz=new SZ($tg,$fn);if($sz->c())$sz->sv($zf);$zc=true;}
        if($zc){header('Content-Type: application/zip');header('Content-Disposition: attachment; filename="'.$fn.'.zip"');header('Content-Length: '.filesize($zf));readfile($zf);unlink($zf);exit;}
    }
}

if(!isset($_SESSION['li'])){?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title><?php echo $n?> - 登录</title>
<style>
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;-webkit-text-size-adjust:100%}
@supports (-webkit-touch-callout:none){
input:not([type=checkbox]):not([type=radio]):not([type=hidden]):not([type=file]):not([type=button]):not([type=submit]):not([type=reset]),
select,textarea{font-size:16px!important}
}
body{
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
    background:linear-gradient(135deg,#faf5ff 0%,#f5f3ff 50%,#ede9fe 100%);
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    line-height:1.5;
    color:#1f2937;
    -webkit-font-smoothing:antialiased;
}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.login-container{
    background:#ffffff;
    border-radius:16px;
    box-shadow:0 4px 6px -1px rgba(139,92,246,0.1),0 2px 4px -2px rgba(139,92,246,0.1),0 0 0 1px rgba(139,92,246,0.05);
    padding:48px 40px;
    width:100%;
    max-width:400px;
    margin:20px;
}
.login-header{
    text-align:center;
    margin-bottom:32px;
}
.login-icon{
    width:64px;
    height:64px;
    margin:0 auto 16px;
    background:linear-gradient(135deg,#8b5cf6,#7c3aed);
    border-radius:16px;
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 4px 12px rgba(139,92,246,0.3);
}
.login-icon svg{width:32px;height:32px;fill:#ffffff}
.login-title{
    font-size:24px;
    font-weight:600;
    color:#111827;
    margin-bottom:4px;
}
.login-subtitle{
    font-size:14px;
    color:#6b7280;
}
.form-group{
    margin-bottom:20px;
}
.form-group label{
    display:block;
    font-size:14px;
    font-weight:500;
    color:#374151;
    margin-bottom:8px;
}
.form-group input{
    width:100%;
    padding:12px 16px;
    font-size:16px;
    border:2px solid #e5e7eb;
    border-radius:10px;
    background:#fafafa;
    transition:all 0.2s ease;
    color:#1f2937;
}
.form-group input::placeholder{color:#9ca3af}
.form-group input:hover{border-color:#d1d5db}
.form-group input:focus{
    outline:none;
    border-color:#8b5cf6;
    background:#ffffff;
    box-shadow:0 0 0 4px rgba(139,92,246,0.1);
}
.captcha-row{
    display:flex;
    gap:12px;
    align-items:flex-end;
}
.captcha-row .form-group{flex:1;margin-bottom:0}
.captcha-img{
    width:120px;
    height:44px;
    border:2px solid #e5e7eb;
    border-radius:10px;
    cursor:pointer;
    transition:border-color 0.2s;
    object-fit:cover;
}
.captcha-img:hover{border-color:#8b5cf6}
.btn-primary{
    width:100%;
    padding:14px 24px;
    font-size:16px;
    font-weight:600;
    border:none;
    border-radius:10px;
    background:linear-gradient(135deg,#8b5cf6,#7c3aed);
    color:#ffffff;
    cursor:pointer;
    transition:all 0.2s ease;
    box-shadow:0 4px 6px -1px rgba(139,92,246,0.2),0 2px 4px -2px rgba(139,92,246,0.1);
}
.btn-primary:hover{
    transform:translateY(-1px);
    box-shadow:0 6px 12px -2px rgba(139,92,246,0.25),0 4px 6px -3px rgba(139,92,246,0.15);
}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:0.6;cursor:not-allowed;transform:none}
@media(max-width:480px){
    .login-container{padding:32px 24px;margin:16px}
    .login-icon{width:56px;height:56px}
    .login-icon svg{width:28px;height:28px}
    .login-title{font-size:20px}
}
</style>
</head>
<body>
<svg class="svg-sprite">
<symbol id="icon-folder" viewBox="0 0 24 24"><path d="M20 6h-8l-2-2H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2z"/></symbol>
</svg>
<div class="login-container">
<div class="login-header">
<div class="login-icon"><svg><use href="#icon-folder"></use></svg></div>
<h1 class="login-title">文件管理器</h1>
<p class="login-subtitle">请输入密码以继续</p>
</div>
<form id="loginForm" method="POST" onsubmit="return false">
<input type="hidden" name="a" value="lg">
<div class="form-group">
<label for="pw">访问密码</label>
<input type="password" name="pw" id="pw" required autofocus placeholder="输入密码">
</div>
<div class="form-group">
<label for="cp">验证码 <a href="javascript:refreshCaptcha()" style="font-size:13px;color:#8b5cf6;text-decoration:none;margin-left:8px;float:right">[刷新]</a></label>
<div class="captcha-row">
<div class="form-group">
<input type="text" name="cp" id="cp" required placeholder="请输入验证码" style="ime-mode:disabled">
</div>
<img id="captchaImg" class="captcha-img" src="?a=captcha" onclick="this.src='?a=captcha&t='+Date.now()" title="点击刷新验证码">
</div>
</div>
<button type="submit" class="btn-primary" id="loginBtn">进入系统</button>
</form>
</div>
<script>
function refreshCaptcha(){document.getElementById('captchaImg').src='?a=captcha&t='+Date.now();}
document.getElementById("loginForm").addEventListener("submit", async function(e) {
    e.preventDefault();
    var btn = document.getElementById("loginBtn");
    var pw = document.getElementById("pw");
    var cp = document.getElementById("cp");
    btn.disabled = true;
    btn.textContent = "登录中...";
    var fd = new FormData();
    fd.append("a", "lg");
    fd.append("pw", pw.value);
    fd.append("cp", cp.value);
    try {
        var r = await fetch("", {method: "POST", body: fd});
        var d = await r.json();
        if (d.s) {
            location.reload();
        } else {
            if(d.c){alert("验证码错误");refreshCaptcha();cp.value='';cp.focus();}
            else{alert("密码错误");pw.value='';pw.focus();}
        }
    } catch (x) {
        alert("网络错误");
    }
    btn.disabled = false;
    btn.textContent = "进入系统";
});
</script>
</body>
</html><?php exit;}

$cd=isset($_GET['dir'])?sp($_GET['dir']):'.';
$cd=$cd==='.'||empty($cd)?'.':$cd;
$it=getFileList($cd);
$pp=pp($cd);

$ef=isset($_GET['edit'])?sp($_GET['edit']):null;
if($ef&&file_exists($ef)&&!is_dir($ef)){$fc=file_get_contents($ef);?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>编辑 - <?php echo $n?></title>
<script>
var EDIT_FILE_PATH = <?php echo json_encode($ef); ?>;
var EDIT_FILE_NAME = <?php echo json_encode(basename($ef)); ?>;
var EDIT_DIR = <?php echo json_encode($cd); ?>;
var EDIT_FILE_CONTENT = <?php echo json_encode($fc, JSON_HEX_TAG | JSON_HEX_AMP | JSON_UNESCAPED_UNICODE); ?>;
var quickNav = <?php echo json_encode(getQn($qn), JSON_UNESCAPED_UNICODE); ?>;
document.title = '编辑 ' + EDIT_FILE_NAME + ' - 文件管理器';
</script>
<style>
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;-webkit-text-size-adjust:100%;height:100%}
@supports (-webkit-touch-callout:none){
input:not([type=checkbox]):not([type=radio]):not([type=hidden]):not([type=file]):not([type=button]):not([type=submit]):not([type=reset]),
select,textarea{font-size:16px!important}
}
:root{
    --primary:#8b5cf6;
    --primary-hover:#7c3aed;
    --bg:#fafafa;
    --bg-white:#ffffff;
    --text:#1f2937;
    --text-secondary:#6b7280;
    --border:#e5e7eb;
    --shadow:0 1px 3px rgba(0,0,0,0.06),0 1px 2px -1px rgba(0,0,0,0.06);
    --shadow-lg:0 4px 6px -1px rgba(139,92,246,0.1),0 2px 4px -2px rgba(139,92,246,0.1);
    --radius:12px;
    --radius-sm:8px;
}
body{
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
    background:#272822;
    color:var(--text);
    line-height:1.5;
    height:100vh;
    overflow:hidden;
    display:flex;
    flex-direction:column;
    -webkit-font-smoothing:antialiased;
}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.header{
    background:var(--bg-white);
    border-bottom:1px solid var(--border);
    padding:16px 24px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    flex-shrink:0;
    z-index:100;
    box-shadow:var(--shadow);
}
.header-left{
    display:flex;
    align-items:center;
    gap:16px;
}
.back-btn{
    display:flex;
    align-items:center;
    gap:8px;
    padding:10px 16px;
    font-size:14px;
    font-weight:500;
    color:var(--text);
    background:var(--bg);
    border:1px solid var(--border);
    border-radius:var(--radius-sm);
    cursor:pointer;
    transition:all 0.2s ease;
}
.back-btn:hover{
    background:var(--bg-white);
    border-color:var(--primary);
    color:var(--primary);
}
.file-title{
    font-size:18px;
    font-weight:600;
    color:var(--text);
}
.header-right{
    display:flex;
    align-items:center;
    gap:12px;
}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:10px 20px;
    font-size:14px;
    font-weight:500;
    border:none;
    border-radius:var(--radius-sm);
    cursor:pointer;
    transition:all 0.2s ease;
}
.btn-secondary{
    background:var(--bg);
    color:var(--text);
    border:1px solid var(--border);
}
.btn-secondary:hover{
    background:var(--bg-white);
    border-color:#d1d5db;
}
.btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-hover));
    color:#ffffff;
    box-shadow:0 2px 4px rgba(139,92,246,0.2);
}
.btn-primary:hover{
    transform:translateY(-1px);
    box-shadow:0 4px 8px rgba(139,92,246,0.25);
}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:0.6;cursor:not-allowed;transform:none;box-shadow:none}
.icon{
    width:18px;
    height:18px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex-shrink:0;
}
.icon svg{width:100%;height:100%;fill:currentColor}
.editor-container{
    flex:1;
    min-height:0;
    display:flex;
    flex-direction:row;
    max-width:none;
    margin:0;
    padding:0;
    overflow:hidden;
}
.se-drawer-backdrop{display:none}
.se-sidebar{
    width:252px;
    flex-shrink:0;
    background:#1e1f1c;
    border-right:1px solid #3e3d32;
    display:flex;
    flex-direction:column;
    min-height:0;
    position:relative;
    z-index:5;
    transition:width .2s ease,margin .2s ease,transform .25s ease;
}
.se-sidebar.collapsed{width:0;min-width:0;overflow:hidden;border-right:none}
.se-drawer-btn{display:inline-flex}
.se-drawer-close{display:inline-flex;align-items:center;justify-content:center}
.se-tree-head{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:0;
    background:#2a2b26;
    border-bottom:1px solid #3e3d32;
    flex-shrink:0;
}
.se-tree-path-row{
    display:flex;
    align-items:center;
    gap:2px;
    padding:8px 10px 7px;
    font-size:12px;
    line-height:1.45;
    border-bottom:1px solid #3e3d32;
    min-width:0;
}
.se-drawer-close{
    margin-left:auto;
    flex-shrink:0;
    width:26px;
    height:26px;
    border:none;
    border-radius:4px;
    background:transparent;
    color:#90908a;
    font-size:18px;
    line-height:1;
    cursor:pointer;
    font-family:inherit;
}
.se-drawer-close:hover{background:#3e3d32;color:#f8f8f2}
.se-tree-path-label{color:#90908a;flex-shrink:0;font-size:12px}
.se-tree-dir{
    flex:1;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
    font-size:12px;
    color:#f8f8f2;
    font-family:'Consolas','Monaco','Courier New',monospace;
}
.se-tree-actions{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    align-items:center;
    padding:6px 8px;
    gap:4px;
}
.se-tree-act{
    display:inline-flex;
    flex-direction:row;
    align-items:center;
    justify-content:center;
    gap:3px;
    padding:6px 2px;
    margin:0;
    border:none;
    background:transparent;
    color:#e8e8e2;
    cursor:pointer;
    font-size:11px;
    line-height:1.2;
    border-radius:4px;
    min-width:0;
    font-family:inherit;
    white-space:nowrap;
    width:100%;
    box-sizing:border-box;
}
.se-tree-act:hover:not(:disabled){background:#3e3d32;color:#fff}
.se-tree-act:disabled{opacity:0.35;cursor:not-allowed}
.se-tree-act.on{background:rgba(102,217,239,0.12);color:#66d9ef}
.se-tree-act-lbl{flex-shrink:1;min-width:0}
.se-tree-act-ico{display:inline-flex;align-items:center;justify-content:center;width:15px;height:15px;flex-shrink:0;opacity:0.92}
.se-tree-act-ico svg{width:15px;height:15px;fill:currentColor;display:block}
.se-tree-toggle{display:none!important}
.se-tree-search-box{display:none;padding:0 8px 8px}
.se-tree-search-box.open{display:block}
.se-tree-search-box input{
    width:100%;
    box-sizing:border-box;
    padding:6px 8px;
    font-size:12px;
    border:1px solid #3e3d32;
    border-radius:4px;
    background:#1e1f1c;
    color:#f8f8f2;
    font-family:inherit;
}
.se-tree-search-box input:focus{outline:none;border-color:#66d9ef}
.se-tree-list{
    flex:1;
    overflow:auto;
    padding:4px 0;
    -webkit-overflow-scrolling:touch;
}
.se-tree-item{
    display:flex;
    align-items:center;
    gap:6px;
    padding:5px 10px 5px 12px;
    font-size:12px;
    color:#c5c5b8;
    cursor:pointer;
    user-select:none;
    line-height:1.4;
}
.se-tree-item:hover{background:#3e3d32;color:#f8f8f2}
.se-tree-item.dir{color:#e6db74}
.se-tree-item.dir .se-tree-ico{color:#e6db74}
.se-tree-item.file.open{color:#e6db74}
.se-tree-item.file.cur{background:rgba(102,217,239,0.12);color:#66d9ef}
.se-tree-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.se-tree-badge{font-size:10px;color:#75715e;flex-shrink:0}
.se-tree-item.file.open .se-tree-badge{color:#e6db74}
.se-ctx-menu{
    position:fixed;
    z-index:10050;
    min-width:148px;
    padding:4px 0;
    background:#272822;
    border:1px solid #3e3d32;
    border-radius:6px;
    box-shadow:0 8px 24px rgba(0,0,0,0.45);
    display:none;
}
.se-ctx-menu.open{display:block}
.se-ctx-item{
    display:block;
    width:100%;
    padding:7px 14px;
    font-size:12px;
    color:#c5c5b8;
    background:transparent;
    border:none;
    text-align:left;
    cursor:pointer;
    font-family:inherit;
    white-space:nowrap;
}
.se-ctx-item:hover{background:#3e3d32;color:#f8f8f2}
.se-ctx-item.danger:hover{background:rgba(249,38,114,0.15);color:#f92672}
.se-ctx-sep{height:1px;background:#3e3d32;margin:4px 0}
.se-mv-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.55);z-index:10060;display:none;align-items:center;justify-content:center;padding:16px}
.se-mv-overlay.open{display:flex}
.se-mv-box{width:100%;max-width:400px;max-height:min(520px,85vh);background:#272822;border:1px solid #3e3d32;border-radius:10px;box-shadow:0 12px 40px rgba(0,0,0,0.5);display:flex;flex-direction:column;overflow:hidden}
.se-mv-head{padding:12px 14px;font-size:14px;font-weight:600;color:#f8f8f2;border-bottom:1px solid #3e3d32}
.se-mv-info{padding:8px 14px;font-size:12px;color:#c5c5b8;line-height:1.5}
.se-mv-info em{font-style:normal;color:#66d9ef}
.se-mv-dest{padding:0 14px 8px;font-size:11px;color:#90908a;font-family:'Consolas','Monaco','Courier New',monospace;word-break:break-all}
.se-mv-dest strong{color:#a6e22e;font-weight:600}
.se-mv-nav{display:flex;align-items:center;gap:6px;padding:6px 10px;border-bottom:1px solid #3e3d32;flex-shrink:0}
.se-mv-up{padding:2px 8px;border:1px solid #3e3d32;border-radius:4px;background:#1e1f1c;color:#c5c5b8;cursor:pointer;font-size:12px}
.se-mv-up:hover:not(:disabled){border-color:#66d9ef;color:#66d9ef}
.se-mv-up:disabled{opacity:0.35;cursor:not-allowed}
.se-mv-cur{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;color:#90908a;font-family:'Consolas','Monaco','Courier New',monospace}
.se-mv-list{flex:1;overflow:auto;padding:4px 0;min-height:120px;max-height:280px;-webkit-overflow-scrolling:touch}
.se-mv-item{display:flex;align-items:center;gap:8px;padding:7px 14px;font-size:12px;color:#e6db74;cursor:pointer;user-select:none}
.se-mv-item:hover{background:#3e3d32;color:#f8f8f2}
.se-mv-item.disabled{opacity:0.35;cursor:not-allowed;pointer-events:none}
.se-mv-empty{padding:16px;text-align:center;font-size:12px;color:#75715e}
.se-mv-foot{display:flex;justify-content:flex-end;gap:8px;padding:10px 14px;border-top:1px solid #3e3d32;flex-shrink:0}
.se-mv-foot button{padding:6px 14px;font-size:12px;border-radius:6px;cursor:pointer;font-family:inherit;border:1px solid #3e3d32;background:#1e1f1c;color:#c5c5b8}
.se-mv-foot button:hover{background:#3e3d32;color:#f8f8f2}
.se-mv-foot .se-mv-ok{border-color:#66d9ef;color:#272822;background:#66d9ef;font-weight:600}
.se-mv-foot .se-mv-ok:hover{background:#a6e22e;border-color:#a6e22e;color:#272822}
.se-mv-foot .se-mv-ok:disabled{opacity:0.4;cursor:not-allowed}
.editor-main{
    flex:1;
    min-width:0;
    min-height:0;
    display:flex;
    flex-direction:column;
}
.editor-wrapper{
    flex:1;
    min-height:0;
    display:flex;
    flex-direction:column;
    background:#272822;
    border-radius:0;
    box-shadow:none;
    border:none;
    overflow:hidden;
}
.se-tabs-wrap{background:#1e1f1c;border-bottom:1px solid #3e3d32;display:flex;align-items:stretch;min-height:36px}
.se-tabs-bar{display:flex;align-items:stretch;gap:2px;padding:4px 8px 0;overflow-x:auto;flex:1;min-width:0;scrollbar-width:thin}
.se-tabs-bar::-webkit-scrollbar{height:4px}
.se-tab{display:inline-flex;align-items:center;gap:6px;max-width:200px;padding:6px 8px 6px 12px;font-size:12px;color:#c5c5b8;background:#272822;border:1px solid #3e3d32;border-bottom:none;border-radius:6px 6px 0 0;cursor:pointer;flex-shrink:0;user-select:none;transition:background .15s,color .15s}
.se-tab:hover{background:#3e3d32;color:#f8f8f2}
.se-tab.active{background:#272822;color:#66d9ef;border-color:#66d9ef;border-bottom-color:#272822;margin-bottom:-1px;z-index:1}
.se-tab-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.se-tab-dot{width:6px;height:6px;border-radius:50%;background:#f92672;flex-shrink:0;display:none}
.se-tab.dirty .se-tab-dot{display:block}
.se-tab-x{width:18px;height:18px;border:none;background:transparent;color:#75715e;cursor:pointer;border-radius:3px;font-size:14px;line-height:1;padding:0;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.se-tab-x:hover{background:rgba(239,68,68,0.2);color:#f92672}
.editor-host{position:relative;background:#272822;flex:1;min-height:0;display:flex;flex-direction:column}
.se-wrap{display:flex;flex:1;min-height:0;height:auto;font-family:'Consolas','Monaco','Courier New',monospace;font-size:14px;line-height:1.5}
.se-gutter{flex:0 0 50px;background:#272822;border-right:1px solid #3e3d32;color:#75715e;text-align:right;padding:12px 6px;overflow:hidden;user-select:none}
.se-gutter div{height:21px;line-height:21px;padding-right:4px}
.se-gutter div.cur{color:#f8f8f2;background:rgba(255,255,255,0.06)}
.se-body{flex:1;min-height:0;position:relative;overflow:hidden;background:#272822}
.se-scroll{position:relative;width:100%;height:100%;min-height:0}
.se-hl,.se-ta{margin:0;padding:12px;border:0;width:100%;font:inherit;font-size:14px;line-height:21px;tab-size:4;-moz-tab-size:4;white-space:pre;word-wrap:normal;overflow-wrap:normal;letter-spacing:normal}
.se-hl{position:absolute;top:0;left:0;min-width:100%;width:max-content;min-height:100%;color:#f8f8f2;pointer-events:none;z-index:1;overflow:visible}
.se-ta{position:absolute;top:0;left:0;right:0;bottom:0;z-index:2;resize:none;outline:none;background:transparent;color:transparent;caret-color:#f8f8f2;-webkit-text-fill-color:transparent;overflow:auto;overflow-x:auto;overflow-y:auto;scrollbar-width:thin;scrollbar-color:#49483e #1e1f1c}
.se-ta::-webkit-scrollbar{width:10px;height:10px}
.se-ta::-webkit-scrollbar-thumb{background:#49483e;border-radius:5px}
.se-ta::-webkit-scrollbar-thumb:hover{background:#75715e}
.se-ta::-webkit-scrollbar-track{background:#1e1f1c}
.se-ta::selection{background:rgba(102,217,239,0.28)}
.se-hl .kw{color:#f92672}.se-hl .fn{color:#a6e22e}.se-hl .str{color:#e6db74}.se-hl .cm{color:#75715e;font-style:italic}.se-hl .num{color:#ae81ff}.se-hl .tag{color:#f92672}.se-hl .attr{color:#a6e22e}.se-hl .op{color:#f92672}
.editor-toolbar{display:flex;align-items:center;padding:8px 12px;background:#1e1f1c;border-bottom:1px solid #3e3d32;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.editor-toolbar::-webkit-scrollbar{display:none}
.editor-toolbar .et-tools{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}
.editor-toolbar .et-tools>.et-btn,.editor-toolbar .et-tools>.et-sep,.editor-toolbar .et-tools>.qn-wrap{flex-shrink:0}
.editor-toolbar .qn-wrap{display:inline-flex;align-items:center}
.editor-toolbar .qn-wrap.open{z-index:10070}
.editor-toolbar .qn-menu{display:none;z-index:10070;min-width:260px;max-width:min(360px,calc(100vw - 20px));background:#272822;border:1px solid #3e3d32;border-radius:6px;box-shadow:0 10px 28px rgba(0,0,0,0.45);padding:4px 0;max-height:min(70vh,calc(100vh - 80px));overflow:auto;-webkit-overflow-scrolling:touch}
.editor-toolbar .qn-wrap.open .qn-menu{display:block}
.editor-toolbar .qn-item{padding:8px 12px;font-size:12px;color:#f8f8f2}
.editor-toolbar .qn-item:hover{background:#3e3d32;color:#f8f8f2}
.editor-toolbar .qn-item.cur{background:rgba(102,217,239,0.1);color:#66d9ef}
.editor-toolbar .qn-rm{color:#75715e}
.editor-toolbar .qn-rm:hover{background:rgba(249,38,114,0.15);color:#f92672}
.editor-toolbar .qn-empty{color:#75715e;padding:10px 12px;font-size:12px}
.editor-toolbar .qn-sep{background:#3e3d32;margin:4px 0}
.editor-toolbar .qn-add-cur{padding:8px 12px;font-size:12px;color:#a6e22e}
.editor-toolbar .qn-add-cur:hover{background:#3e3d32;color:#f8f8f2}
.editor-toolbar .qn-form{padding:8px 12px 10px}
.editor-toolbar .qn-form input{background:#1e1f1c;border-color:#3e3d32;color:#f8f8f2;font-size:12px}
.editor-toolbar .qn-form input:focus{border-color:#66d9ef}
.editor-toolbar .qn-form button{background:#49483e;font-size:12px}
.editor-toolbar .qn-form button:hover{background:#75715e}
.editor-toolbar .qn-btn{min-width:0;padding:4px 10px;font-size:12px;white-space:nowrap}
.editor-toolbar .qn-label-short{display:none}
.et-btn{padding:4px 10px;font-size:12px;border:1px solid #3e3d32;border-radius:4px;background:#272822;color:#f8f8f2;cursor:pointer;font-family:inherit}
.et-btn:hover{background:#3e3d32}
.et-btn:disabled{opacity:0.35;cursor:not-allowed}
.et-btn-save{border-color:#66d9ef;color:#66d9ef}
.et-btn-save:hover{background:#3e3d32;color:#a6e22e;border-color:#a6e22e}
.et-sep{width:1px;height:18px;background:#3e3d32;margin:0 2px}
.et-sep-drawer{display:inline-block}
.se-chmod-body{padding:0 14px 12px;font-size:12px;color:#c5c5b8}
.se-chmod-cur{margin-bottom:12px;padding:8px 10px;background:#1e1f1c;border:1px solid #3e3d32;border-radius:4px;font-family:'Consolas','Monaco','Courier New',monospace;line-height:1.5}
.se-chmod-cur .sym{color:#75715e;margin-left:8px}
.se-chmod-mode{width:100%;padding:8px 10px;border:1px solid #3e3d32;border-radius:4px;background:#1e1f1c;color:#f8f8f2;font-size:12px;font-family:'Consolas','Monaco','Courier New',monospace;box-sizing:border-box}
.se-chmod-mode:focus{outline:none;border-color:#66d9ef}
.se-chmod-presets{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.se-chmod-presets button{padding:4px 10px;font-size:11px;border:1px solid #3e3d32;border-radius:4px;background:#272822;color:#c5c5b8;cursor:pointer;font-family:inherit}
.se-chmod-presets button:hover{border-color:#66d9ef;color:#66d9ef}
.se-chmod-rec{margin-top:10px;display:flex;align-items:center;gap:6px;font-size:12px;color:#90908a;cursor:pointer}
.se-chmod-rec input{width:14px;height:14px;margin:0}
.se-findbar{display:none;align-items:center;gap:6px;padding:8px 12px;background:#2f303a;border-bottom:1px solid #3e3d32;flex-wrap:wrap}
.se-findbar.open{display:flex}
.se-findbar input{padding:5px 8px;font-size:12px;border:1px solid #3e3d32;border-radius:4px;background:#272822;color:#f8f8f2;min-width:120px;font-family:'Consolas','Monaco','Courier New',monospace}
.se-findbar input:focus{outline:none;border-color:#66d9ef}
#seReplace,#seReplaceBtn,#seReplaceAllBtn{display:none}
.se-findbar.rep #seReplace,.se-findbar.rep #seReplaceBtn,.se-findbar.rep #seReplaceAllBtn{display:inline-block}
.se-findbar button{padding:4px 10px;font-size:12px;border:1px solid #3e3d32;border-radius:4px;background:#272822;color:#f8f8f2;cursor:pointer;font-family:inherit}
.se-findbar button:hover{background:#3e3d32}
.se-find-stat{font-size:12px;color:#90908a;min-width:60px}
.se-find-close{margin-left:auto;padding:2px 8px;font-size:16px;line-height:1}
.status-bar{
    padding:8px 16px;
    background:#1e1f1c;
    border-top:1px solid #3e3d32;
    display:flex;
    justify-content:space-between;
    align-items:center;
    font-size:12px;
    color:#90908a;
    font-weight:500;
    font-family:'Consolas','Monaco','Courier New',monospace;
    flex-shrink:0;
}
.status-bar span{
    display:flex;
    align-items:center;
    gap:8px;
}
.status-bar span::before{
    content:'';
    width:6px;
    height:6px;
    background:#a6e22e;
    border-radius:50%;
}
@media(max-width:768px){
    body{height:100vh;min-height:100vh;overflow:hidden;background:#272822}
    .header{padding:12px 16px;flex-wrap:wrap;gap:12px}
    .header-left{order:1}
    .header-right{order:2}
    .editor-container{padding:0;flex-direction:row;position:relative;min-height:0}
    .se-drawer-backdrop{display:block;position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:10030;opacity:0;pointer-events:none;transition:opacity .25s ease}
    .se-drawer-backdrop.show{opacity:1;pointer-events:auto}
    .se-sidebar{
        position:fixed;
        left:0;top:0;bottom:0;
        width:min(86vw,300px);
        max-width:300px;
        max-height:none;
        min-height:0;
        z-index:10040;
        transform:translateX(-105%);
        border-right:1px solid #3e3d32;
        border-bottom:none;
        box-shadow:none;
    }
    .se-sidebar.drawer-open{transform:translateX(0);box-shadow:6px 0 28px rgba(0,0,0,0.45)}
    .se-sidebar.collapsed{width:min(86vw,300px);min-width:0;transform:translateX(-105%);overflow:visible;border-right:1px solid #3e3d32}
    .se-sidebar:not(.drawer-open):not(.collapsed){transform:translateX(-105%)}
    .se-drawer-close{display:inline-flex;align-items:center;justify-content:center}
    .se-drawer-btn{display:inline-flex}
    .se-drawer-btn.on{color:#66d9ef;border-color:#66d9ef}
    .editor-main{flex:1;min-width:0;min-height:0;width:100%;display:flex;flex-direction:column}
    .editor-wrapper{flex:1;min-height:0;display:flex;flex-direction:column}
    .editor-wrapper{border-radius:0;border:none;box-shadow:none}
    .btn{padding:8px 16px;font-size:13px}
    .editor-host{flex:1;min-height:0}
    .editor-host .se-wrap{height:auto;flex:1;min-height:0}
    .se-tabs-bar{padding:4px 4px 0}
    .se-tab{max-width:140px;padding:6px 6px 6px 10px}
    .se-findbar input{min-width:0;flex:1}
    .se-hl,.se-ta{font-size:13px;line-height:20px}
    .se-gutter div{height:20px;line-height:20px}
    .editor-toolbar{padding:6px 10px}
    .editor-toolbar .et-tools{gap:4px}
    .editor-toolbar .et-btn{padding:4px 8px;font-size:11px}
    .editor-toolbar .qn-label-full{display:none}
    .editor-toolbar .qn-label-short{display:inline}
    .se-tree-actions{padding:5px 6px;gap:3px}
    .se-tree-act{padding:5px 1px;font-size:10px;gap:2px}
    .se-tree-act-ico{width:14px;height:14px}
    .se-tree-act-ico svg{width:14px;height:14px}
}
.qn-wrap{position:relative;display:inline-flex}
.qn-btn{min-width:0}
.qn-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:280px;max-width:360px;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);padding:6px 0;display:none;z-index:200;max-height:70vh;overflow:auto}
.qn-wrap.open .qn-menu{display:block}
.qn-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 14px;color:var(--text);font-size:14px;text-decoration:none;transition:background .15s}
.qn-item-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.qn-item:hover{background:var(--primary-light);color:var(--primary)}
.qn-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.qn-rm{width:22px;height:22px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:4px;font-size:16px;line-height:1;flex-shrink:0}
.qn-rm:hover{background:rgba(239,68,68,0.12);color:#dc2626}
.qn-empty{padding:14px;font-size:13px;color:var(--text-secondary);text-align:center}
.qn-sep{height:1px;background:var(--border);margin:6px 0}
.qn-add-cur{display:block;width:100%;padding:10px 14px;border:none;background:transparent;text-align:left;font-size:13px;color:var(--primary);cursor:pointer}
.qn-add-cur:hover{background:var(--primary-light)}
.qn-form{padding:10px 14px 12px;display:flex;flex-direction:column;gap:8px}
.qn-form input{padding:8px 10px;font-size:13px;border:1px solid var(--border);border-radius:6px;background:var(--bg)}
.qn-form input:focus{outline:none;border-color:var(--primary)}
.qn-form button{padding:8px;font-size:13px;border:none;border-radius:6px;background:var(--primary);color:#fff;cursor:pointer}
.qn-form button:hover{background:var(--primary-hover)}
@media(max-width:768px){
    .editor-toolbar .qn-wrap.open .qn-menu{position:fixed!important;left:10px!important;right:10px!important;width:auto!important;min-width:0!important;max-width:none!important;z-index:10070!important;max-height:min(75vh,calc(100vh - 72px));-webkit-overflow-scrolling:touch;box-shadow:0 12px 32px rgba(0,0,0,0.5)}
    .qn-wrap.open .qn-menu{position:fixed;left:12px;right:12px;min-width:0;max-width:none;z-index:10070;max-height:min(75vh,calc(100vh - 72px));-webkit-overflow-scrolling:touch}
    .qn-btn{min-width:0;font-size:13px;padding:8px 12px}
    .qn-form input,.qn-form button{width:100%;box-sizing:border-box}
    .qn-form button{padding:10px;white-space:nowrap}
    .header-right .qn-wrap{flex:1;min-width:0}
}
</style>
</head>
<body>
<svg class="svg-sprite">
<symbol id="icon-refresh" viewBox="0 0 24 24"><path d="M17.65 6.35C16.2 4.9 14.21 4 12 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08c-.82 2.33-3.04 4-5.65 4-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z"/></symbol>
<symbol id="icon-save" viewBox="0 0 24 24"><path d="M17 3H5c-1.11 0-2 .9-2 2v14c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V7l-4-4zm-5 16c-1.66 0-3-1.34-3-3s1.34-3 3-3 3 1.34 3 3-1.34 3-3 3zm3-10H5V5h10v4z"/></symbol>
<symbol id="icon-up" viewBox="0 0 24 24"><path d="M4 12l1.41 1.41L11 7.83V20h2V7.83l5.59 5.58L20 12l-8-8-8 8z"/></symbol>
<symbol id="icon-add" viewBox="0 0 24 24"><path d="M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/></symbol>
<symbol id="icon-search" viewBox="0 0 24 24"><path d="M15.5 14h-.79l-.28-.27A6.471 6.471 0 0016 9.5 6.5 6.5 0 109.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C8.01 14 6 11.99 6 9.5S8.01 5 10.5 5 15 7.01 15 9.5 12.99 14 10.5 14z"/></symbol>
</svg>
<div class="editor-container" id="editorContainer">
<div class="se-drawer-backdrop" id="seDrawerBackdrop" onclick="seToggleTree(false)"></div>
<aside class="se-sidebar" id="seSidebar">
<div class="se-tree-head">
<div class="se-tree-path-row">
<span class="se-tree-path-label">目录：</span>
<span class="se-tree-dir" id="seTreeDir" title="">/</span>
<button type="button" class="se-drawer-close" onclick="seToggleTree(false)" title="收起">×</button>
</div>
<div class="se-tree-actions">
<button type="button" class="se-tree-act" id="seTreeUpBtn" onclick="seTreeUp()" title="上一级" disabled><span class="se-tree-act-ico"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="#icon-up"/></svg></span><span class="se-tree-act-lbl">上级</span></button>
<button type="button" class="se-tree-act" onclick="seTreeRefresh()" title="刷新"><span class="se-tree-act-ico"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="#icon-refresh"/></svg></span><span class="se-tree-act-lbl">刷新</span></button>
<button type="button" class="se-tree-act" id="seTreeNewBtn" onclick="seTreeToolbarNew(event)" title="新建"><span class="se-tree-act-ico"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="#icon-add"/></svg></span><span class="se-tree-act-lbl">新建</span></button>
<button type="button" class="se-tree-act" id="seTreeSearchBtn" onclick="seTreeToggleSearch()" title="搜索"><span class="se-tree-act-ico"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="#icon-search"/></svg></span><span class="se-tree-act-lbl">搜索</span></button>
</div>
<div class="se-tree-search-box" id="seTreeSearchBox"><input type="text" id="seTreeSearchIn" placeholder="筛选文件名…" autocomplete="off"></div>
</div>
<div class="se-tree-list" id="seTreeList"></div>
<div class="se-ctx-menu" id="seCtxMenu" role="menu"></div>
<input type="file" id="seUpFile" multiple style="display:none">
<input type="file" id="seUpDir" multiple webkitdirectory directory style="display:none">
</aside>
<div class="editor-main">
<div class="editor-wrapper">
<div class="se-tabs-wrap">
<div class="se-tabs-bar" id="seTabsBar"></div>
</div>
<div class="editor-toolbar" id="editorToolbar">
<div class="et-tools">
<button type="button" class="et-btn se-drawer-btn" id="seDrawerBtn" onclick="seToggleTree()" title="展开文件列表">☰ 文件</button>
<span class="et-sep et-sep-drawer"></span>
<button type="button" class="et-btn" onclick="history.back()" title="返回文件列表">返回</button>
<span class="et-sep"></span>
<button type="button" class="et-btn" id="btnFormat" onclick="seFormat()" title="格式化 Ctrl+Alt+F">格式化</button>
<button type="button" class="et-btn" id="btnMinify" onclick="seMinify()" title="压缩 Ctrl+Alt+M">压缩</button>
<span class="et-sep"></span>
<button type="button" class="et-btn" onclick="seFindOpen(false)" title="搜索 Ctrl+F">搜索</button>
<button type="button" class="et-btn" onclick="seFindOpen(true)" title="替换 Ctrl+H">替换</button>
<button type="button" class="et-btn et-btn-save" id="seToolbarSave" onclick="saveContent()" title="保存 Ctrl+S">保存</button>
<span class="et-sep"></span>
<div class="qn-wrap" id="qnWrap">
<button type="button" class="et-btn qn-btn" onclick="toggleQn(event)" title="常用文件快捷打开"><span class="qn-label-full">快速编辑 ▾</span><span class="qn-label-short">快捷 ▾</span></button>
<div class="qn-menu" id="qnMenu"></div>
</div>
</div>
</div>
<div class="se-findbar" id="seFindbar">
<input type="text" id="seFind" placeholder="搜索">
<input type="text" id="seReplace" placeholder="替换为">
<button type="button" onmousedown="event.preventDefault()" onclick="seFindPrev()">上一个</button>
<button type="button" onmousedown="event.preventDefault()" onclick="seFindNext()">下一个</button>
<button type="button" id="seReplaceBtn" onmousedown="event.preventDefault()" onclick="seReplaceOne()">替换</button>
<button type="button" id="seReplaceAllBtn" onmousedown="event.preventDefault()" onclick="seReplaceAll()">全部</button>
<span class="se-find-stat" id="seFindStat"></span>
<button type="button" class="se-find-close" onclick="seFindClose()" title="关闭 Esc">×</button>
</div>
<div class="editor-host">
<div class="se-wrap" id="seWrap">
<div class="se-gutter" id="seGutter"></div>
<div class="se-body"><div class="se-scroll"><pre class="se-hl" id="seHl"></pre><textarea id="tx" class="se-ta" spellcheck="false"></textarea></div></div>
</div>
</div>
<div class="status-bar">
<span id="cc">字符: </span>
<span id="lc">行数: </span>
<span id="mc">Sublime · Monokai · Ctrl+Tab 切换 · Ctrl+W 关闭</span>
</div>
</div>
</div>
</div>
<div class="se-mv-overlay" id="seMvOverlay" onclick="if(event.target===this)seMvClose()">
<div class="se-mv-box" onclick="event.stopPropagation()">
<div class="se-mv-head">选择移动目标</div>
<div class="se-mv-info" id="seMvInfo"></div>
<div class="se-mv-dest" id="seMvDest"></div>
<div class="se-mv-nav">
<button type="button" class="se-mv-up" id="seMvUp" onclick="seMvUp()">↑</button>
<span class="se-mv-cur" id="seMvCur" title="">.</span>
</div>
<div class="se-mv-list" id="seMvList"></div>
<div class="se-mv-foot">
<button type="button" onclick="seMvClose()">取消</button>
<button type="button" class="se-mv-ok" id="seMvOk" onclick="seMvConfirm()">确认移动</button>
</div>
</div>
</div>
<div class="se-mv-overlay" id="seChmodOverlay" onclick="if(event.target===this)seChmodClose()">
<div class="se-mv-box" onclick="event.stopPropagation()">
<div class="se-mv-head">修改权限</div>
<div class="se-mv-info" id="seChmodInfo"></div>
<div id="seChmodBody"></div>
<div class="se-mv-foot">
<button type="button" onclick="seChmodClose()">取消</button>
<button type="button" class="se-mv-ok" id="seChmodOk" onclick="seChmodApply()">应用</button>
</div>
</div>
</div>
<div class="se-mv-overlay" id="upConflictOverlay" onclick="if(event.target===this)uploadConflictPick('cancel')">
<div class="se-mv-box" onclick="event.stopPropagation()">
<div class="se-mv-head">文件已存在</div>
<div class="se-mv-info"><strong id="upConflictName" style="color:#e6db74"></strong> 已存在，请选择处理方式</div>
<div style="padding:0 14px 12px;font-size:12px;color:#90908a"><label style="cursor:pointer;display:flex;align-items:center;gap:6px"><input type="checkbox" id="upConflictAll" style="width:14px;height:14px;margin:0"> 全部应用此选择（本次上传）</label></div>
<div class="se-mv-foot" style="flex-direction:column;align-items:stretch;gap:8px">
<button type="button" class="se-mv-ok" onclick="uploadConflictPick('replace')">替换</button>
<button type="button" onclick="uploadConflictPick('copy')">保留为副本</button>
<button type="button" onclick="uploadConflictPick('cancel')">取消</button>
</div>
</div>
</div>
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function seRenderTabs(){var bar=document.getElementById('seTabsBar');if(!bar)return;var h='';seTabs.forEach(function(t){h+='<div class="se-tab'+(t.id===seActiveId?' active':'')+(t.dirty?' dirty':'')+'" data-id="'+t.id+'" title="'+t.path.replace(/"/g,'&quot;')+'" onclick="seSwitchTab(\''+t.id+'\')"><span class="se-tab-dot"></span><span class="se-tab-name">'+t.name.replace(/</g,'&lt;')+'</span><button type="button" class="se-tab-x" onclick="seCloseTab(\''+t.id+'\',event)" title="关闭">×</button></div>';});bar.innerHTML=h;seTreeMarkActive();if(window.qnMarkMenu)qnMarkMenu();}
function seTreeEsc(s){return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/"/g,'&quot;');}
function seTreeMarkActive(){var list=document.getElementById('seTreeList');if(!list)return;var open={};seTabs.forEach(function(t){open[seNormPath(t.path)]=t.id;});list.querySelectorAll('.se-tree-item.file').forEach(function(el){var p=el.getAttribute('data-path'),np=seNormPath(p);el.classList.remove('cur','open');var b=el.querySelector('.se-tree-badge');if(!open[np]){if(b)b.remove();return;}el.classList.add('open');if(open[np]===seActiveId)el.classList.add('cur');if(!b){b=document.createElement('span');b.className='se-tree-badge';b.textContent='●';el.appendChild(b);}});}
function seTreeAttr(s){return String(s).replace(/&/g,'&amp;').replace(/"/g,'&quot;');}
function seTreeFmtPath(dir){dir=seNormPath(dir||'.');return dir==='.'?'/':'/'+dir.replace(/^\.?\//,'');}
function seTreeUpdatePath(){var el=document.getElementById('seTreeDir');if(!el)return;var p=seTreeFmtPath(seTreeDir);el.textContent=p;el.title=p;}
function seTreeUpdateUpBtn(){var btn=document.getElementById('seTreeUpBtn');if(btn)btn.disabled=seTreeDir==='.'||!seTreeParent;}
function seTreeRefresh(){seTreeLoad(seTreeDir);}
function seTreeFilter(){var q=document.getElementById('seTreeSearchIn'),list=document.getElementById('seTreeList');if(!list)return;var s=q?(q.value||'').trim().toLowerCase():'';list.querySelectorAll('.se-tree-item').forEach(function(el){var n=(el.getAttribute('data-name')||'').toLowerCase();el.style.display=!s||n.indexOf(s)>=0?'':'none';});}
function seTreeToggleSearch(){var box=document.getElementById('seTreeSearchBox'),btn=document.getElementById('seTreeSearchBtn'),inp=document.getElementById('seTreeSearchIn');if(!box)return;var open=box.classList.toggle('open');if(btn)btn.classList.toggle('on',open);if(open&&inp){inp.focus();}else if(inp){inp.value='';seTreeFilter();}}
function seTreeToolbarNew(e){e.stopPropagation();var btn=document.getElementById('seTreeNewBtn');if(!btn)return;var r=btn.getBoundingClientRect();seCtxShow(r.left,r.bottom+2,{el:null,path:null,parentDir:seTreeDir,name:null,isDir:false});}
function seTreeLoad(dir){dir=dir||'.';seTreeDir=dir;seTreeUpdatePath();var list=document.getElementById('seTreeList');if(list)list.innerHTML='<div class="qn-empty" style="padding:12px;color:#75715e">加载中...</div>';seApi({a:'ls',dir:dir}).then(function(d){if(!d.s){seTip(d.msg||'无法加载目录',1);if(list)list.innerHTML='<div class="qn-empty" style="padding:12px;color:#f92672">加载失败</div>';return;}seTreeParent=d.parent!=null?d.parent:'.';seTreeUpdateUpBtn();var h='';d.items.forEach(function(it){var p=String(it.p).replace(/\\/g,'/');if(it.d){h+='<div class="se-tree-item dir" data-path="'+seTreeAttr(p)+'" data-name="'+seTreeAttr(it.n)+'"><span class="se-tree-ico">📁</span><span class="se-tree-name">'+seTreeEsc(it.n)+'</span></div>';}else{var ex=seFindTabByPath(p),open=!!ex;h+='<div class="se-tree-item file'+(open?' open':'')+(ex&&ex.id===seActiveId?' cur':'')+'" data-path="'+seTreeAttr(p)+'" data-name="'+seTreeAttr(it.n)+'"><span class="se-tree-ico">📄</span><span class="se-tree-name">'+seTreeEsc(it.n)+'</span>'+(open?'<span class="se-tree-badge">●</span>':'')+'</div>';}});if(list)list.innerHTML=h||'<div class="qn-empty" style="padding:12px;color:#75715e">空目录</div>';seTreeMarkActive();seTreeFilter();}).catch(function(){seTip('加载目录失败',1);if(list)list.innerHTML='<div class="qn-empty" style="padding:12px;color:#f92672">加载失败</div>';});}
function seTreeUp(){if(seTreeDir==='.'||!seTreeParent)return;seTreeLoad(seTreeParent);}
function seTreeSyncTab(){var t=seGetActiveTab();if(t&&t.dir!==seTreeDir)seTreeLoad(t.dir);}
function seTreeDrawerMode(){return window.matchMedia('(max-width:768px)').matches;}
function seSidebarOpen(){var s=document.getElementById('seSidebar');if(!s)return false;if(seTreeDrawerMode())return s.classList.contains('drawer-open');return !s.classList.contains('collapsed');}
function seSetSidebar(open){var s=document.getElementById('seSidebar'),bd=document.getElementById('seDrawerBackdrop'),btn=document.getElementById('seDrawerBtn');if(!s)return;if(seTreeDrawerMode()){s.classList.toggle('drawer-open',!!open);s.classList.remove('collapsed');if(bd)bd.classList.toggle('show',!!open);document.body.classList.toggle('se-drawer-open',!!open);}else{s.classList.toggle('collapsed',!open);s.classList.remove('drawer-open');if(bd)bd.classList.remove('show');document.body.classList.remove('se-drawer-open');}if(btn){btn.classList.toggle('on',!!open);btn.title=open?'收起文件列表':'展开文件列表';}}
function seSetDrawer(open){seSetSidebar(open);}
function seToggleTree(force){var open;if(force===true)open=true;else if(force===false)open=false;else open=!seSidebarOpen();seSetSidebar(open);}
function seTreeOnClick(e){var el=e.target.closest('.se-tree-item');if(!el)return;var path=el.getAttribute('data-path');if(!path)return;if(el.classList.contains('dir'))seTreeLoad(path);else{seOpenFile(path);if(seTreeDrawerMode())seSetSidebar(false);}}
var seCtxTarget=null;
function seTreeNewParent(el){if(!el)return seTreeDir;var path=el.getAttribute('data-path');if(el.classList.contains('dir'))return path;return seDirFromPath(path);}
function seTreeItemParent(el){if(!el)return seTreeDir;var path=el.getAttribute('data-path');return seDirFromPath(path);}
function seTreeItemName(el){return el?(el.getAttribute('data-name')||''):'';}
function seCtxHide(){var m=document.getElementById('seCtxMenu');if(m)m.classList.remove('open');seCtxTarget=null;}
function seCtxShow(x,y,target){seCtxTarget=target;var m=document.getElementById('seCtxMenu');if(!m)return;var h='<button type="button" class="se-ctx-item" data-act="cf">新建文件</button><button type="button" class="se-ctx-item" data-act="cd">新建文件夹</button><div class="se-ctx-sep"></div><button type="button" class="se-ctx-item" data-act="upf">上传文件</button><button type="button" class="se-ctx-item" data-act="upd">上传文件夹</button>';if(target.path){h+='<div class="se-ctx-sep"></div><button type="button" class="se-ctx-item" data-act="dup">复制为副本</button><button type="button" class="se-ctx-item" data-act="mv">移动到</button><button type="button" class="se-ctx-item" data-act="chmod">修改权限</button><button type="button" class="se-ctx-item" data-act="rn">重命名</button><button type="button" class="se-ctx-item danger" data-act="del">删除</button>';}m.innerHTML=h;m.classList.add('open');var r=m.getBoundingClientRect(),vw=window.innerWidth,vh=window.innerHeight,l=x,t=y;if(l+r.width>vw-8)l=Math.max(8,vw-r.width-8);if(t+r.height>vh-8)t=Math.max(8,vh-r.height-8);m.style.left=l+'px';m.style.top=t+'px';}
function seTreeOnCtx(e){var list=document.getElementById('seTreeList'),head=e.target.closest('.se-tree-head');if(!list&&!head)return;if(e.target.closest('.se-tree-act,.se-tree-search-box'))return;e.preventDefault();var el=e.target.closest('.se-tree-item');var parentDir=seTreeNewParent(el);seCtxShow(e.clientX,e.clientY,{el:el,path:el?el.getAttribute('data-path'):null,parentDir:parentDir,name:el?seTreeItemName(el):null,isDir:el?el.classList.contains('dir'):false});}
function seTreeTabsClosePath(path,isDir){var p=seNormPath(path);if(isDir){var pre=p==='.'?'./':p+'/';var rm=[];seTabs.forEach(function(t){var tp=seNormPath(t.path);if(tp===p||tp.indexOf(pre)===0||(p!=='.'&&tp.indexOf(p+'/')===0))rm.push(t.id);});rm.forEach(function(id){seCloseTab(id,null,1);});}else{var t=seFindTabByPath(p);if(t)seCloseTab(t.id,null,1);}}
function seTreeTabsRename(oldPath,newPath,isDir){var o=seNormPath(oldPath),n=seNormPath(newPath);if(isDir){var pre=o==='.'?'./':o+'/';seTabs.forEach(function(t){var tp=seNormPath(t.path);if(tp===o||tp.indexOf(pre)===0||tp.indexOf(o+'/')===0){var suf=tp===o?'':tp.slice(o.length);t.path=seNormPath(n+suf);t.name=t.path.slice(t.path.lastIndexOf('/')+1);t.dir=seDirFromPath(t.path);var nid=seTabId(t.path);if(t.id===seActiveId)seActiveId=nid;t.id=nid;}});}else{var t=seFindTabByPath(o);if(t){t.path=n;t.name=n.slice(n.lastIndexOf('/')+1);t.dir=seDirFromPath(n);var nid=seTabId(n);if(t.id===seActiveId)seActiveId=nid;t.id=nid;}}seRenderTabs();seStoreTabs();seUpdateHeader();}
function seTreeNewFile(){var t=seCtxTarget;if(!t)return;var dir=t.parentDir,hint=dir&&dir!=='.'?'在 '+dir+' 下创建':'在当前目录创建';var n=prompt(hint+'\n输入文件名','newfile.txt');seCtxHide();if(!n)return;n=String(n).trim().replace(/\\/g,'/');if(!n||n.indexOf('/')>=0||n.indexOf('..')>=0){seTip('文件名无效',1);return;}seApi({a:'cf',dir:dir,n:n}).then(function(d){if(!d.s){seTip(d.e||'创建失败',1);return;}seTip('已创建 '+n);seTreeLoad(dir);var fp=d.path||((dir==='.'||!dir)?n:dir+'/'+n);seOpenFile(fp);}).catch(function(){seTip('创建失败',1);});}
function seTreeNewDir(){var t=seCtxTarget;if(!t)return;var dir=t.parentDir,hint=dir&&dir!=='.'?'在 '+dir+' 下创建':'在当前目录创建';var n=prompt(hint+'\n输入文件夹名','newfolder');seCtxHide();if(!n)return;n=String(n).trim().replace(/\\/g,'/');if(!n||n.indexOf('/')>=0||n.indexOf('..')>=0){seTip('文件夹名无效',1);return;}seApi({a:'cd',dir:dir,n:n}).then(function(d){if(!d.s){seTip(d.e||'创建失败',1);return;}seTip('已创建文件夹 '+n);seTreeLoad(dir);}).catch(function(){seTip('创建失败',1);});}
function seTreeRename(){var t=seCtxTarget;if(!t||!t.el)return;var on=t.name,dir=seTreeItemParent(t.el),oldPath=t.path;var nn=prompt('重命名为',on);seCtxHide();if(!nn||nn===on)return;nn=String(nn).trim().replace(/\\/g,'/');if(!nn||nn.indexOf('/')>=0||nn.indexOf('..')>=0){seTip('名称无效',1);return;}seApi({a:'rn',dir:dir,on:on,nn:nn}).then(function(d){if(!d.s){seTip('重命名失败',1);return;}var newPath=(dir==='.'||!dir)?nn:dir+'/'+nn;seTreeTabsRename(oldPath,newPath,t.isDir);seTip('已重命名为 '+nn);seTreeLoad(seTreeDir);}).catch(function(){seTip('重命名失败',1);});}
function seTreeDelete(){var t=seCtxTarget;if(!t||!t.path)return;var label=t.isDir?'文件夹「'+t.name+'」及其内容':'文件「'+t.name+'」';if(!confirm('确定删除'+label+'？\n此操作不可恢复！')){seCtxHide();return;}seCtxHide();var dir=seTreeItemParent(t.el),path=t.path;seApi({a:'del',dir:dir,n:t.name}).then(function(d){if(!d.s){seTip(d.msg||'删除失败',1);return;}seTreeTabsClosePath(path,t.isDir);seTip(d.msg||'已删除');seTreeLoad(seTreeDir);}).catch(function(){seTip('删除失败',1);});}
function seTreeDuplicate(){var t=seCtxTarget;if(!t||!t.path)return;seCtxHide();var dir=seTreeItemParent(t.el);seApi({a:'dup',dir:dir,n:t.name}).then(function(d){if(!d.s){seTip(d.msg||'复制失败',1);return;}seTip('已复制为 '+d.n);seTreeLoad(seTreeDir);if(!d.d)seOpenFile(seNormPath(d.path));}).catch(function(){seTip('复制失败',1);});}
function seTreeDirtyUnder(path,isDir){var p=seNormPath(path);if(!isDir){var t=seFindTabByPath(p);return t?!!t.dirty:false;}var pre=p+'/';for(var i=0;i<seTabs.length;i++){var tp=seNormPath(seTabs[i].path);if((tp===p||tp.indexOf(pre)===0)&&seTabs[i].dirty)return true;}return false;}
var seMvPending=null,seMvPickDir='.',seMvParent=null;
function seMvInvalidMsg(destDir){if(!seMvPending)return'';var dest=seNormPath(destDir),oldPath=seMvPending.path,newPath=seNormPath(dest==='.'?seMvPending.name:dest+'/'+seMvPending.name);if(sePathEq(oldPath,newPath))return'目标与当前位置相同';if(seMvPending.isDir){var op=oldPath+'/';if(sePathEq(dest,oldPath)||(dest!=='.'&&dest.indexOf(op)===0))return'不能移动到自身或其子目录';}return'';}
function seMvUpdateDest(){var el=document.getElementById('seMvDest'),ok=document.getElementById('seMvOk');if(!el)return;var dest=seNormPath(seMvPickDir),msg=seMvInvalidMsg(dest);el.innerHTML='移动到：<strong>'+seTreeEsc(dest)+'</strong>'+(msg?'<br><span style="color:#f92672">'+seTreeEsc(msg)+'</span>':'');if(ok)ok.disabled=!!msg;}
function seMvClose(){var o=document.getElementById('seMvOverlay');if(o)o.classList.remove('open');seMvPending=null;}
function seMvRowInvalid(path){if(!seMvPending||!seMvPending.isDir)return false;var p=seNormPath(path),op=seMvPending.path+'/';return sePathEq(p,seMvPending.path)||p.indexOf(op)===0;}
function seMvLoad(dir){dir=dir||'.';seMvPickDir=dir;var cur=document.getElementById('seMvCur'),up=document.getElementById('seMvUp'),list=document.getElementById('seMvList');if(cur){cur.textContent=dir;cur.title=dir;}seMvUpdateDest();if(list)list.innerHTML='<div class="se-mv-empty">加载中...</div>';seApi({a:'ls',dir:dir}).then(function(d){if(!d.s){if(list)list.innerHTML='<div class="se-mv-empty">加载失败</div>';return;}seMvParent=d.parent!=null?d.parent:(dir!=='.'?'.':null);if(up)up.disabled=dir==='.';var dirs=d.items.filter(function(it){return it.d;});if(!list)return;if(!dirs.length){list.innerHTML='<div class="se-mv-empty">无子文件夹<br><span style="font-size:11px;color:#75715e">可点「确认移动」移到当前目录</span></div>';return;}var h='';dirs.forEach(function(it){var p=String(it.p).replace(/\\/g,'/'),bad=seMvRowInvalid(p);h+='<div class="se-mv-item'+(bad?' disabled':'')+'" data-path="'+seTreeAttr(p)+'"><span>📁</span><span>'+seTreeEsc(it.n)+'</span></div>';});list.innerHTML=h;}).catch(function(){if(list)list.innerHTML='<div class="se-mv-empty">加载失败</div>';});}
function seMvUp(){if(seMvPickDir==='.')return;seMvLoad(seMvParent||'.');}
function seMvOpen(){var t=seCtxTarget;if(!t||!t.path)return;seCtxHide();seMvPending={name:t.name,path:seNormPath(t.path),isDir:t.isDir,srcDir:seTreeItemParent(t.el)};seMvPickDir=seMvPending.srcDir;var info=document.getElementById('seMvInfo');if(info)info.innerHTML='选择要将 <em>'+seTreeEsc(t.name)+'</em> 移动到的文件夹，然后点击「确认移动」';var o=document.getElementById('seMvOverlay');if(o)o.classList.add('open');seMvLoad(seMvPickDir);}
function seMvConfirm(){if(!seMvPending)return;var destDir=seNormPath(seMvPickDir),dir=seMvPending.srcDir,oldPath=seMvPending.path,msg=seMvInvalidMsg(destDir);if(msg){seTip(msg,1);return;}var newPath=seNormPath(destDir==='.'?seMvPending.name:destDir+'/'+seMvPending.name);if(seTreeDirtyUnder(oldPath,seMvPending.isDir)&&!confirm('有已打开的文件未保存，移动后路径会变更，确定继续？'))return;var btn=document.getElementById('seMvOk');if(btn)btn.disabled=true;seApi({a:'mv',dir:dir,d:destDir,n:seMvPending.name}).then(function(d){if(!d.s){seTip(d.msg||'移动失败',1);if(btn)btn.disabled=false;return;}seTreeTabsRename(oldPath,newPath,seMvPending.isDir);seTip(d.msg||'已移动');seMvClose();seTreeLoad(destDir);}).catch(function(){seTip('移动失败',1);if(btn)btn.disabled=false;});}
function seTreeMove(){seMvOpen();}
var seChmodPending=null;
function seChmodClose(){var o=document.getElementById('seChmodOverlay');if(o)o.classList.remove('open');seChmodPending=null;}
function seChmodPreset(v){var inp=document.getElementById('seChmodMode');if(inp)inp.value=v;}
function seChmodRender(it){var body=document.getElementById('seChmodBody'),info=document.getElementById('seChmodInfo');if(!body||!seChmodPending)return;if(!it||!it.oct){body.innerHTML='<div class="se-chmod-body" style="color:#f92672">读取权限失败</div>';return;}if(info)info.innerHTML='修改 <em>'+seTreeEsc(seChmodPending.name)+'</em> 的权限';var h='<div class="se-chmod-body"><div class="se-chmod-cur">'+seTreeEsc(it.oct)+'<span class="sym">'+seTreeEsc(it.sym||'')+'</span></div><input type="text" class="se-chmod-mode" id="seChmodMode" placeholder="新权限，如 755 或 rwxr-xr-x" value="'+seTreeAttr(it.oct)+'" autocomplete="off"><div class="se-chmod-presets"><button type="button" onclick="seChmodPreset(\'755\')">755</button><button type="button" onclick="seChmodPreset(\'644\')">644</button><button type="button" onclick="seChmodPreset(\'775\')">775</button><button type="button" onclick="seChmodPreset(\'600\')">600</button><button type="button" onclick="seChmodPreset(\'rwxr-xr-x\')">rwxr-xr-x</button></div>';if(seChmodPending.isDir)h+='<label class="se-chmod-rec"><input type="checkbox" id="seChmodRec"> 递归修改子目录</label>';h+='</div>';body.innerHTML=h;}
function seChmodFetch(fd){return fetch(location.pathname||'',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){if(!r.ok)throw new Error('HTTP '+r.status);return r.json();});}
function seChmodLoad(){if(!seChmodPending)return;var fd=new FormData();fd.append('a','chmod');fd.append('dir',seChmodPending.dir);fd.append('n[]',seChmodPending.name);seChmodFetch(fd).then(function(d){if(!d.s||!d.items||!d.items.length){seChmodRender(null);return;}seChmodRender(d.items[0]);}).catch(function(){seChmodRender(null);});}
function seChmodOpen(){var t=seCtxTarget;if(!t||!t.path)return;seCtxHide();seChmodPending={name:t.name,path:seNormPath(t.path),isDir:!!t.isDir,dir:seTreeItemParent(t.el)};var info=document.getElementById('seChmodInfo'),body=document.getElementById('seChmodBody'),o=document.getElementById('seChmodOverlay');if(info)info.innerHTML='正在读取 <em>'+seTreeEsc(t.name)+'</em> 的权限…';if(body)body.innerHTML='';if(o)o.classList.add('open');seChmodLoad();}
function seChmodApply(){if(!seChmodPending)return;var modeEl=document.getElementById('seChmodMode'),mode=modeEl?modeEl.value.trim():'';if(!mode)return seTip('请输入新权限',1);var recEl=document.getElementById('seChmodRec'),fd=new FormData();fd.append('a','chmod');fd.append('dir',seChmodPending.dir);fd.append('mode',mode);fd.append('n[]',seChmodPending.name);if(recEl&&recEl.checked)fd.append('recursive','1');var btn=document.getElementById('seChmodOk');if(btn){btn.disabled=true;btn.textContent='应用中…';}seChmodFetch(fd).then(function(d){if(btn){btn.disabled=false;btn.textContent='应用';}seTip(d.msg||'完成',d.s?0:1);if(d.s){seChmodClose();seTreeLoad(seTreeDir);}}).catch(function(){if(btn){btn.disabled=false;btn.textContent='应用';}seTip('修改权限失败',1);});}
function seTreeUploadPick(isDir){var t=seCtxTarget;if(!t)return;seCtxHide();var inp=document.getElementById(isDir?'seUpDir':'seUpFile');if(!inp)return;inp._seUploadDir=t.parentDir||seTreeDir;inp.value='';inp.click();}
var upConflictAll=null,upConflictPending=null;
function uploadConflictReset(){upConflictAll=null;var el=document.getElementById('upConflictAll');if(el)el.checked=false;}
function uploadConflictClose(){var o=document.getElementById('upConflictOverlay');if(o)o.classList.remove('open');upConflictPending=null;}
function uploadConflictPick(mode){var p=upConflictPending;if(!p)return;var allEl=document.getElementById('upConflictAll');if(allEl&&allEl.checked&&mode!=='cancel')upConflictAll=mode;uploadConflictClose();if(p.resolve)p.resolve(mode);}
function uploadConflictAsk(name){return new Promise(function(resolve){if(upConflictAll){resolve(upConflictAll);return;}upConflictPending={resolve:resolve};var nm=document.getElementById('upConflictName');if(nm)nm.textContent=name;var o=document.getElementById('upConflictOverlay');if(o)o.classList.add('open');else resolve('replace');});}
function uploadCheckExists(dir,rel,name,url){var fd=new FormData();fd.append('a','upchk');fd.append('dir',dir);if(rel)fd.append('rel',rel);else fd.append('n',name||'');return fetch(url||'',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.json();});}
function uploadSendFile(dir,file,rel,mode,url){return new Promise(function(resolve){var xhr=new XMLHttpRequest();var fd=new FormData();fd.append('a','up');fd.append('dir',dir);fd.append('fl',file,file.name||'file');if(rel)fd.append('rel',rel);if(mode)fd.append('mode',mode);xhr.onload=function(){try{resolve(JSON.parse(xhr.responseText));}catch(e){resolve({s:false,e:'响应异常'});}};xhr.onerror=function(){resolve({s:false,e:'网络错误'});};xhr.open('POST',url||'');xhr.send(fd);});}
async function uploadFileWithConflict(dir,file,rel,url){var name=rel||file.name||'file';var chk=await uploadCheckExists(dir,rel,file.name,url);if(!chk.s)return chk;var mode='';if(chk.exists){mode=await uploadConflictAsk(chk.n||name);if(mode==='cancel')return{s:false,e:'已取消',skip:true};}var d=await uploadSendFile(dir,file,rel,mode,url);if(d.conflict&&!mode){mode=await uploadConflictAsk(d.n||name);if(mode==='cancel')return{s:false,e:'已取消',skip:true};return uploadSendFile(dir,file,rel,mode,url);}return d;}
function seTreeUploadOne(dir,file,rel){return uploadFileWithConflict(dir,file,rel,location.pathname||'');}
async function seTreeUploadFiles(dir,files,isDir){var n=files.length;if(!n)return;uploadConflictReset();var ok=0,fail=0,skip=0,lastErr='';seTip('上传 0/'+n+'…',2);for(var i=0;i<n;i++){var file=files[i],rel=isDir&&(file.webkitRelativePath||file.relativePath)?(file.webkitRelativePath||file.relativePath):file.name;var d=await seTreeUploadOne(dir,file,rel);if(d.s)ok++;else if(d.skip)skip++;else{fail++;lastErr=d.e||'失败';}}seTreeLoad(dir);if(fail)seTip('上传完成：'+ok+' 成功，'+fail+' 失败'+(skip?'，'+skip+' 已跳过':'')+(lastErr?'（'+lastErr+'）':''),1);else if(skip)seTip('上传完成：'+ok+' 成功，'+skip+' 已跳过',2);else seTip('已上传 '+ok+' 个文件');}
function seTreeOnUpFileChange(e){var inp=e.target,files=inp&&inp.files;if(!files||!files.length)return;var dir=inp._seUploadDir||seTreeDir;seTreeUploadFiles(dir,files,false);}
function seTreeOnUpDirChange(e){var inp=e.target,files=inp&&inp.files;if(!files||!files.length)return;var dir=inp._seUploadDir||seTreeDir;seTreeUploadFiles(dir,files,true);}
function seCtxOnClick(e){e.stopPropagation();var btn=e.target.closest('[data-act]');if(!btn)return;var act=btn.getAttribute('data-act');if(act==='cf')seTreeNewFile();else if(act==='cd')seTreeNewDir();else if(act==='upf')seTreeUploadPick(false);else if(act==='upd')seTreeUploadPick(true);else if(act==='dup')seTreeDuplicate();else if(act==='mv')seTreeMove();else if(act==='chmod')seChmodOpen();else if(act==='rn')seTreeRename();else if(act==='del')seTreeDelete();}
function seTreeInit(){var list=document.getElementById('seTreeList'),side=document.getElementById('seSidebar'),ctx=document.getElementById('seCtxMenu'),head=side?side.querySelector('.se-tree-head'):null,mvList=document.getElementById('seMvList'),sin=document.getElementById('seTreeSearchIn'),upF=document.getElementById('seUpFile'),upD=document.getElementById('seUpDir');if(list&&!list._seBound){list._seBound=1;list.addEventListener('click',seTreeOnClick);list.addEventListener('contextmenu',seTreeOnCtx);}if(head&&!head._seCtxBound){head._seCtxBound=1;head.addEventListener('contextmenu',seTreeOnCtx);}if(sin&&!sin._seBound){sin._seBound=1;sin.addEventListener('input',seTreeFilter);}if(upF&&!upF._seBound){upF._seBound=1;upF.addEventListener('change',seTreeOnUpFileChange);}if(upD&&!upD._seBound){upD._seBound=1;upD.addEventListener('change',seTreeOnUpDirChange);}if(ctx&&!ctx._seBound){ctx._seBound=1;ctx.addEventListener('click',seCtxOnClick);}if(mvList&&!mvList._seBound){mvList._seBound=1;mvList.addEventListener('click',function(e){var el=e.target.closest('.se-mv-item');if(!el||el.classList.contains('disabled'))return;var p=el.getAttribute('data-path');if(p)seMvLoad(p);});}if(!document._seCtxDocBound){document._seCtxDocBound=1;document.addEventListener('click',seCtxHide);document.addEventListener('keydown',function(e){if(e.key==='Escape'){var sb=document.getElementById('seTreeSearchBox');if(sb&&sb.classList.contains('open')){sb.classList.remove('open');var b=document.getElementById('seTreeSearchBtn');if(b)b.classList.remove('on');var i=document.getElementById('seTreeSearchIn');if(i){i.value='';seTreeFilter();}}else if(document.getElementById('upConflictOverlay')&&document.getElementById('upConflictOverlay').classList.contains('open'))uploadConflictPick('cancel');else if(document.getElementById('seChmodOverlay')&&document.getElementById('seChmodOverlay').classList.contains('open'))seChmodClose();else if(document.getElementById('seMvOverlay')&&document.getElementById('seMvOverlay').classList.contains('open'))seMvClose();else if(seSidebarOpen())seSetSidebar(false);else seCtxHide();}});window.addEventListener('scroll',seCtxHide,true);}seTreeLoad(EDIT_DIR);seSetSidebar(!seTreeDrawerMode());if(!window._seDrawerResize){window._seDrawerResize=1;window.addEventListener('resize',function(){var s=document.getElementById('seSidebar'),bd=document.getElementById('seDrawerBackdrop'),btn=document.getElementById('seDrawerBtn');if(seTreeDrawerMode()){if(s)s.classList.remove('collapsed');if(!seSidebarOpen()){if(bd)bd.classList.remove('show');document.body.classList.remove('se-drawer-open');if(btn)btn.classList.remove('on');}}else{if(s)s.classList.remove('drawer-open');if(bd)bd.classList.remove('show');document.body.classList.remove('se-drawer-open');if(btn)btn.classList.toggle('on',seSidebarOpen());}});}}
function seStoreTabs(){try{var paths=seTabs.map(function(t){return t.path;});sessionStorage.setItem(SE_TABS_KEY,JSON.stringify({active:seActiveId,paths:paths}));}catch(x){}}
function seSwitchTab(id){if(id===seActiveId)return;seFlushTab();seLoadTab(id);seRenderTabs();seStoreTabs();}
async function seOpenFile(path,force,noAct){path=seNormPath(path);if(!path||path==='.')return;var ex=seFindTabByPath(path);if(ex&&!force){if(noAct!==true)seSwitchTab(ex.id);return;}if(ex&&force)seCloseTab(ex.id,null,1);if(seTabs.length>=SE_MAX_TABS){seTip('最多打开 '+SE_MAX_TABS+' 个标签',1);return;}if(noAct!==true)seFlushTab();try{var d=await seApi({a:'gf',p:path});if(!d.s){seTip(d.msg||'无法打开',1);return;}var fp=seNormPath(d.p);ex=seFindTabByPath(fp);if(ex&&!force){if(noAct!==true)seSwitchTab(ex.id);return;}var id=seTabId(fp),ct=seNormText(d.ct);var tab={id:id,path:fp,name:d.n,dir:seDirFromPath(fp),content:ct,saved:ct,dirty:false};seTabs.push(tab);if(noAct===true){seRenderTabs();seStoreTabs();}else seSwitchTab(id);}catch(x){seTip('加载失败',1);}}
function seCloseTab(id,ev,force){if(ev){ev.stopPropagation();ev.preventDefault();}var t=seGetTab(id);if(!t)return;if(id===seActiveId)seFlushTab();else t.dirty=!seTextEq(t.content,t.saved);if(!force&&t.dirty&&!confirm('「'+t.name+'」未保存，确定关闭？'))return;var i=seTabs.findIndex(function(x){return x.id===id;});if(i<0)return;seTabs.splice(i,1);if(seActiveId===id){if(seTabs.length){var ni=Math.min(i,seTabs.length-1);seLoadTab(seTabs[ni].id);}else{seActiveId=null;setEditorValue('');seUpdateHeader();}}seRenderTabs();seStoreTabs();if(!seTabs.length)seTip('已无打开的文件',1);}
function seInitTabs(){var ep=seNormPath(EDIT_FILE_PATH),ct=seNormText(EDIT_FILE_CONTENT);var tab={id:seTabId(ep),path:ep,name:EDIT_FILE_NAME,dir:EDIT_DIR,content:ct,saved:ct,dirty:false};seTabs=[tab];seActiveId=tab.id;seRenderTabs();seLoadTab(seActiveId);try{var raw=sessionStorage.getItem(SE_TABS_KEY);if(raw){var st=JSON.parse(raw);(st.paths||[]).filter(function(p){return p&&!sePathEq(p,ep);}).forEach(function(p){seOpenFile(p,0,1);});}}catch(x){}}
function seResolvePath(p){p=String(p).replace(/\\/g,'/').trim();if(!p)return'';if(p.indexOf('/')>=0||p.indexOf('..')===0)return seNormPath(p);var tab=seGetActiveTab();var base=tab?tab.dir:EDIT_DIR;if(!base||base==='.')return seNormPath(p);return seNormPath(base+'/'+p);}
function seOpenFilePrompt(){var tab=seGetActiveTab(),hint=tab&&tab.dir&&tab.dir!=='.'?'例如: '+tab.dir+'/ftp.php':'例如: ftp.php 或 ../其他.php';var p=prompt('输入要打开的文件路径\n'+hint,'');if(!p)return;seOpenFile(seResolvePath(p));}
function seGoFileList(){var tab=seGetActiveTab();location.href='?dir='+encodeURIComponent(tab?tab.dir:EDIT_DIR);}
var originalContent=EDIT_FILE_CONTENT;
function seEsc(s){return s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');}
function seHlTok(tokens,cls,text){var i=tokens.length;tokens.push('<span class="'+cls+'">'+text+'</span>');return '\x01H'+i+'H\x01';}
function seHlApply(s,rules){var tokens=[];for(var i=0;i<rules.length;i++){var re=rules[i][0],cls=rules[i][1];s=s.replace(re,function(m){return seHlTok(tokens,cls,m);});}return s.replace(/\x01H(\d+)H\x01/g,function(_,n){return tokens[+n];});}
function seHlRules(lang){if(lang==='php')return[[/('(?:\\.|[^'\\])*'|"(?:\\.|[^"\\])*")/g,'str'],[/(\/\*[\s\S]*?\*\/)/g,'cm'],[/(?<!:)\/\/[^\n]*/g,'cm'],[/(^|\s)(#[^\n]*)/gm,'cm'],[/\$[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*/g,'fn'],[/\b(function|class|if|else|elseif|return|new|public|private|protected|static|echo|print|var|const|foreach|while|for|switch|case|break|continue|namespace|use|require|include|extends|implements|true|false|null|array|as|try|catch|finally|throw|declare|interface|trait|abstract|final|global|isset|empty|unset|die|exit)\b/g,'kw']];if(lang==='js'||lang==='ts'||lang==='jsx')return[[/(\/\*[\s\S]*?\*\/)/g,'cm'],[/(\/\/[^\n]*)/g,'cm'],[/('(?:\\.|[^'\\])*'|"(?:\\.|[^"\\])*")/g,'str'],[/(`(?:\\.|[^`\\])*`)/g,'str'],[/\b(function|class|if|else|return|new|const|let|var|for|while|do|switch|case|break|continue|import|export|from|default|async|await|try|catch|finally|throw|typeof|instanceof|in|of|delete|void|yield|extends|static|get|set|super|this|true|false|null|undefined)\b/g,'kw'],[/\b(\d+\.?\d*|\.\d+)(?:[eE][+-]?\d+)?\b/g,'num'],[/\b(console|document|window|JSON|Math|Array|Object|String|Number|Boolean|parseInt|parseFloat|setTimeout|setInterval|clearTimeout|fetch|Promise|Map|Set|RegExp|Error|alert|location|navigator|localStorage|sessionStorage|FormData|XMLHttpRequest|requestAnimationFrame)\b/g,'fn']];if(lang==='css'||lang==='scss')return[[/(\/\*[\s\S]*?\*\/)/g,'cm'],[/("[^"\\]*(?:\\.[^"\\]*)*"|'[^'\\]*(?:\\.[^'\\]*)*')/g,'str'],[/@[\w-]+/g,'kw'],[/#([0-9a-fA-F]{3,8})\b/g,'num'],[/\b(\d+\.?\d*)(?:px|em|rem|vh|vw|vmin|vmax|%|s|ms|deg|fr|ch|ex)?\b/g,'num'],[/([.#][\w-]+)/g,'fn'],[/([\w-]+)(\s*:)/g,'attr'],[/!important\b/g,'kw']];if(lang==='html'||lang==='htm'||lang==='xml')return[[/(&lt;!--[\s\S]*?--&gt;)/g,'cm'],[/(&lt;!\[CDATA\[[\s\S]*?\]\]&gt;)/g,'cm'],[/(&lt;!DOCTYPE[\s\S]*?&gt;)/gi,'tag'],[/(&lt;![\w-][\s\S]*?&gt;)/g,'tag'],[/(&lt;\?[\s\S]*?\?&gt;)/g,'tag'],[/('(?:\\.|[^'\\])*'|"(?:\\.|[^"\\])*")/g,'str'],[/(&lt;\/?[\w:-]+)/g,'tag'],[/(\s)([\w:-]+)(=)/g,'attr']];if(lang==='json')return[[/("[^"\\]*(?:\\.[^"\\]*)*")/g,'str'],[/\b(true|false|null)\b/g,'kw'],[/\b(-?\d+(?:\.\d+)?)\b/g,'num']];if(lang==='py')return[[/('(?:\\.|[^'\\])*'|"(?:\\.|[^"\\])*")/g,'str'],[/(#.*)/g,'cm'],[/\b(def|class|if|elif|else|return|import|from|as|for|while|try|except|finally|raise|with|lambda|pass|break|continue|True|False|None|and|or|not|in|is|global|yield)\b/g,'kw']];return[];}
function seHlPart(text,type){if(!text)return'';if((type==='js'||type==='css')&&/<\?/.test(text))return text.split(/(<\?[\s\S]*?\?>)/g).map(function(p){if(/^<\?/.test(p))return seHlApply(seEsc(p),seHlRules('php'));return seHlPart(p,type);}).join('');var t=type;if(t==='htm')t='html';if(t==='jsx')t='js';if(t==='scss')t='css';return seHlApply(seEsc(text),seHlRules(t));}
function seHlMixed(src,lang){return seSplitMixed(src,lang).map(function(p){return seHlPart(p.text,p.type);}).join('');}
function seHlCode(s,lang){var out=lang==='html'||lang==='htm'||lang==='php'||lang==='xml'?seHlMixed(s,lang):seHlApply(seEsc(s),seHlRules(lang));return out+(s.slice(-1)==='\n'?'\n':'');}
function getEditorValue(){return seTa.value;}
function setEditorValue(v){seTa.value=v;seTa.scrollTop=0;seTa.scrollLeft=0;seRefresh();seSyncLayout();}
function seSyncLayout(){if(!seHl||!seTa)return;seHl.style.transform='translate('+(-seTa.scrollLeft)+'px,'+(-seTa.scrollTop)+'px)';seGutter.scrollTop=seTa.scrollTop;}
function updateStats(){var v=getEditorValue();document.getElementById('cc').textContent='字符: '+v.length;document.getElementById('lc').textContent='行数: '+(v?v.split('\n').length:1);}
function seCurLine(){return getEditorValue().substring(0,seTa.selectionStart).split('\n').length-1;}
function seRefreshGutter(){var n=getEditorValue().split('\n').length,cur=seCurLine(),h='';for(var i=0;i<n;i++)h+='<div class="'+(i===cur?'cur':'')+'">'+(i+1)+'</div>';seGutter.innerHTML=h;seGutter.scrollTop=seTa.scrollTop;}
function seRefreshHl(){var v=getEditorValue(),mx=0;v.split('\n').forEach(function(l){if(l.length>mx)mx=l.length;});if(v.length>500000||mx>50000){seHl.innerHTML=seEsc(v);}else{seHl.innerHTML=seHlCode(v,seLang);}requestAnimationFrame(seSyncLayout);}
function seRefresh(){seRefreshGutter();seRefreshHl();updateStats();if(document.getElementById('mc'))document.getElementById('mc').textContent='Sublime · Monokai · '+seLang;}
function seInsert(text){var s=seTa.selectionStart,e=seTa.selectionEnd,v=seTa.value;seTa.value=v.slice(0,s)+text+v.slice(e);seTa.selectionStart=seTa.selectionEnd=s+text.length;seRefresh();}
var seFmtLangs={json:1,js:1,jsx:1,css:1,scss:1,php:1,html:1,htm:1},seFindIdx=-1,seFindPos=[];
function seFmtKind(){var l=seLang;if(l==='jsx')return'js';if(l==='scss')return'css';return seFmtLangs[l]?l:null;}
function seToolbarUpdate(){var k=seFmtKind(),bf=document.getElementById('btnFormat'),bm=document.getElementById('btnMinify');if(bf)bf.disabled=!k;if(bm)bm.disabled=!k;}
function seTip(msg,err){var bg=err===1||err===true?'#ef4444':err===2?'#52525b':'#10b981';var t=document.createElement('div');t.textContent=msg;t.style.cssText='position:fixed;top:20px;right:20px;background:'+bg+';color:#fff;padding:12px 16px;border-radius:8px;z-index:10001;font-size:14px';document.body.appendChild(t);setTimeout(function(){t.remove();},2000);}
function seFindTagOpen(html,i,n){var si=-1,ci=-1,j=i;while(j<n){if(html.substr(j,4)==='<!--'){var ec=html.indexOf('-->',j+4);j=ec<0?n:ec+3;continue;}var r=html.slice(j),m1=/^<script\b/i.exec(r),m2=/^<style\b/i.exec(r);if(m1&&(si<0||j<si))si=j;if(m2&&(ci<0||j<ci))ci=j;if(m1||m2){if(si>=0&&ci>=0)break;j++;continue;}j++;}if(si<0&&ci<0)return null;var type=si<0?'style':ci<0?'script':si<=ci?'script':'style';return{type:type,pos:type==='script'?si:ci};}
function seJsRegexStart(html,i){if(i<=0)return 1;var j=i-1;while(j>=0&&/\s/.test(html[j]))j--;if(j<0)return 1;var p=html[j];return!/[\w$)\]"'0-9.]/.test(p);}
function seSkipJsRegex(html,i,n){if(html[i]!=='/')return i+1;var c2=html[i+1];if(c2==='/'||c2==='*')return i+1;if(!seJsRegexStart(html,i))return i+1;var j=i+1,esc=false;while(j<n){var c=html[j];if(esc){esc=false;j++;continue;}if(c==='\\'){esc=true;j++;continue;}if(c==='/')return j+1;j++;}return j<n?j+1:n;}
function seTagGt(html,pos,n){var inS=null,q,i=pos;while(i<n){var c=html[i];if(inS){if(c===inS)inS=null;i++;continue;}if(c==='"'||c==="'"){inS=c;i++;continue;}if(c==='>')return i;i++;}return -1;}
function seTagSelfClose(openTag){return/\/\s*>$/.test(openTag);}
function seTagInnerLang(openTag,tag){var m=openTag.match(/\btype\s*=\s*(?:"([^"]*)"|'([^']*)'|([^\s>]+))/i),t=(m?m[1]||m[2]||m[3]:'').toLowerCase().trim();if(tag==='style')return'css';if(/^text\/(css|scss)$/.test(t))return'css';if(/^text\/(javascript|ecmascript|jscript|js)$/.test(t)||t==='module')return'js';if(/^text\/(html|plain|template|x-handlebars)/.test(t))return'html';if(/\bsrc\s*=/i.test(openTag)&&!/\btype\s*=/i.test(openTag))return'js';return tag==='script'?'js':'css';}
function seFindTagCloseStart(html,i,n,tag){var inS=null,esc=false,close='</'+tag,isStyle=tag==='style';while(i<n){var c=html[i],c2=html[i+1];if(inS){if(esc)esc=false;else if(c==='\\')esc=true;else if(c===inS)inS=null;i++;continue;}if(c==='/'&&c2==='*'){var bc=html.indexOf('*/',i+2);i=bc<0?n:bc+2;continue;}if(!isStyle&&c==='/'&&c2==='/'){var lc=html.indexOf('\n',i+2);i=lc<0?n:lc+1;continue;}if(!isStyle&&c==='/'&&c2!=='/'&&c2!=='*'){i=seSkipJsRegex(html,i,n);continue;}if(c==='"'||c==="'"||c==='`'){inS=c;i++;continue;}if(c==='<'&&html.substr(i,close.length).toLowerCase()===close){var m=html.substr(i).match(new RegExp('^</'+tag+'\\s*>','i'));if(m)return i;}i++;}return n;}
function seSplitHtmlSub(html){var parts=[],last=0,i=0,n=html.length,op,gt,bodyStart,cs,ce,m,openTag,innerLang;while(i<n){op=seFindTagOpen(html,i,n);if(!op)break;if(op.pos>last){parts.push({type:'html',text:html.slice(last,op.pos)});last=op.pos;}gt=seTagGt(html,op.pos,n);if(gt<0)break;openTag=html.slice(op.pos,gt+1);bodyStart=gt+1;innerLang=seTagInnerLang(openTag,op.type);parts.push({type:'html',text:openTag});if(seTagSelfClose(openTag)){last=gt+1;i=gt+1;continue;}cs=seFindTagCloseStart(html,bodyStart,n,op.type);m=html.substr(cs).match(new RegExp('^</'+op.type+'\\s*>','i'));ce=cs+(m?m[0].length:0);parts.push({type:innerLang,text:html.slice(bodyStart,cs)});parts.push({type:'html',text:html.slice(cs,ce)});last=ce;i=ce;}if(last<n)parts.push({type:'html',text:html.slice(last)});return parts.length?parts:[{type:'html',text:html}];}
var _PT={o:'<'+'?php',e:'<'+'?=',s:'<'+'?',c:'?'+'>' ,x:'<'+'?xml'};
function seInScriptStyle(src,a,pos){var i=a,op,gt,bodyStart,cs,ce,m;while(i<pos){op=seFindTagOpen(src,i,pos);if(!op||op.pos>=pos)break;gt=seTagGt(src,op.pos,pos);if(gt<0||gt>=pos)break;if(seTagSelfClose(src.slice(op.pos,gt+1))){i=gt+1;continue;}bodyStart=gt+1;if(bodyStart>=pos)return 1;cs=seFindTagCloseStart(src,bodyStart,pos,op.type);if(cs>=pos)return 1;m=src.substr(cs).match(new RegExp('^</'+op.type+'\\s*>','i'));ce=cs+(m?m[0].length:0);i=ce;}return 0;}
function seScanPhpHtml(src){var parts=[],i=0,n=src.length,P=_PT;while(i<n){if(src.substr(i,P.x.length)===P.x){var gt=src.indexOf('>',i);if(gt<0)gt=n;parts=parts.concat(seSplitHtmlSub(src.slice(i,gt+1)));i=gt+1;continue;}if(src.substr(i,P.s.length)!==P.s){var nx=src.indexOf(P.s,i);while(nx<n&&seInScriptStyle(src,i,nx))nx=src.indexOf(P.s,nx+2);if(nx<0)nx=n;var h2=src.slice(i,nx);if(h2)parts=parts.concat(seSplitHtmlSub(h2));i=nx;continue;}var open=P.s.length;if(src.substr(i,P.o.length)===P.o)open=P.o.length;else if(src.substr(i,P.e.length)===P.e)open=P.e.length;var j=i+open,inS=null,esc=false,heredoc=null;while(j<n){var c=src[j],c2=src[j+1];if(heredoc){var le=src.indexOf('\n',j);if(le<0)le=n;if(src.slice(j,le).trim()===heredoc){j=le+1;heredoc=null;}else j=le+1;continue;}if(inS){if(esc)esc=false;else if(c==='\\')esc=true;else if(c===inS)inS=null;j++;continue;}if(c==='"'||c==="'"||c==='`'){inS=c;j++;continue;}if(c==='<'&&c2==='<'&&src.substr(j,3)==='<<<'){var he=src.indexOf('\n',j);heredoc=src.slice(j+3,he).replace(/^[\s-]+/,'').trim();j=he+1;continue;}if(c==='?'&&c2==='>'){j+=2;break;}j++;}parts.push({type:'php',text:src.slice(i,j)});i=j;}return parts;}
function seSplitMixed(src,lang){if(lang==='php')return seScanPhpHtml(src);if(lang==='html'||lang==='htm')return seSplitHtmlSub(src);if(lang==='css')return[{type:'css',text:src}];return[{type:'js',text:src}];}
function seFmtPhpBlock(block){var P=_PT,open,inner,close='';if(block.indexOf(P.o)===0){open=P.o;inner=block.slice(P.o.length);}else if(block.indexOf(P.e)===0){open=P.e;inner=block.slice(P.e.length);}else if(block.indexOf(P.s)===0){open=P.s;inner=block.slice(P.s.length);}else return block;if(inner.slice(-P.c.length)===P.c){close=P.c;inner=inner.slice(0,-P.c.length);}inner=inner.trim();var body=inner?seFmtCodeInner(inner,true):'';return open+(body?' '+body:'')+close;}
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</body>
</html>
<?php exit;}?>

<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title><?php echo $n?></title>
<script>var currentDir=<?php echo json_encode($cd); ?>;var quickNav=<?php echo json_encode(getQn($qn), JSON_UNESCAPED_UNICODE); ?>;</script>
<style>
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
    --primary:#8b5cf6;
    --primary-hover:#7c3aed;
    --primary-light:rgba(139,92,246,0.08);
    --success:#10b981;
    --success-light:rgba(16,185,129,0.08);
    --warning:#f59e0b;
    --warning-light:rgba(245,158,11,0.08);
    --danger:#ef4444;
    --danger-light:rgba(239,68,68,0.08);
    --bg:#fafafa;
    --bg-white:#ffffff;
    --bg-gray:#f9fafb;
    --text:#1f2937;
    --text-secondary:#6b7280;
    --text-muted:#9ca3af;
    --border:#e5e7eb;
    --shadow:0 1px 3px rgba(0,0,0,0.04),0 1px 2px -1px rgba(0,0,0,0.04);
    --shadow-md:0 4px 6px -1px rgba(139,92,246,0.08),0 2px 4px -2px rgba(139,92,246,0.06);
    --shadow-lg:0 10px 15px -3px rgba(139,92,246,0.06),0 4px 6px -4px rgba(139,92,246,0.04);
    --radius:12px;
    --radius-sm:8px;
    --radius-xs:6px;
}
html{font-size:16px;-webkit-text-size-adjust:100%}
@supports (-webkit-touch-callout:none){
input:not([type=checkbox]):not([type=radio]):not([type=hidden]):not([type=file]):not([type=button]):not([type=submit]):not([type=reset]),
select,textarea{font-size:16px!important}
}
body{
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.5;
    min-height:100vh;
    -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.25}
a{color:inherit;text-decoration:none}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.icon{width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.icon svg{width:100%;height:100%;fill:currentColor}
.file-icon-folder{color:#f59e0b}
.file-icon-image{color:#10b981}
.file-icon-video{color:#8b5cf6}
.file-icon-audio{color:#ec4899}
.file-icon-archive{color:#ef4444}
.file-icon-document{color:#3b82f6}
.file-icon-other{color:#6b7280}
/* Header */
.header{
    background:var(--bg-white);
    border-bottom:1px solid var(--border);
    padding:14px 24px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    position:sticky;
    top:0;
    z-index:100;
    box-shadow:var(--shadow);
}
.header-left{
    display:flex;
    align-items:center;
    gap:16px;
}
.logo-icon{
    width:40px;
    height:40px;
    background:linear-gradient(135deg,var(--primary),var(--primary-hover));
    border-radius:var(--radius-sm);
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 2px 8px rgba(139,92,246,0.25);
}
.logo-icon svg{width:22px;height:22px;fill:#ffffff}
.breadcrumbs{
    display:flex;
    align-items:center;
    gap:4px;
    font-size:14px;
    color:var(--text-secondary);
}
.breadcrumbs a{
    padding:4px 10px;
    border-radius:var(--radius-xs);
    transition:all 0.2s ease;
}
.breadcrumbs a:hover{
    background:var(--bg-gray);
    color:var(--primary);
}
.breadcrumbs span{
    font-weight:500;
    color:var(--primary);
    background:var(--primary-light);
    padding:4px 10px;
    border-radius:var(--radius-xs);
}
.header-right{
    display:flex;
    align-items:center;
    gap:12px;
}
.login-status{
    font-size:13px;
    color:var(--text-muted);
    padding-right:8px;
}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:6px;
    padding:8px 16px;
    font-size:14px;
    font-weight:500;
    border-radius:var(--radius-sm);
    border:none;
    cursor:pointer;
    transition:all 0.2s ease;
    white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none}
.btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-hover));
    color:#ffffff;
    box-shadow:0 2px 4px rgba(139,92,246,0.2);
}
.btn-primary:hover{
    box-shadow:0 4px 8px rgba(139,92,246,0.25);
}
.btn-secondary{
    background:var(--bg-white);
    color:var(--text);
    border:1px solid var(--border);
}
.btn-secondary:hover{
    background:var(--bg-gray);
    border-color:#d1d5db;
}
.btn-success{
    background:linear-gradient(135deg,var(--success),#059669);
    color:#ffffff;
    box-shadow:0 2px 4px rgba(16,185,129,0.2);
}
.btn-success:hover{box-shadow:0 4px 8px rgba(16,185,129,0.25)}
.btn-danger{
    background:linear-gradient(135deg,var(--danger),#dc2626);
    color:#ffffff;
    box-shadow:0 2px 4px rgba(239,68,68,0.2);
}
.btn-danger:hover{box-shadow:0 4px 8px rgba(239,68,68,0.25)}
/* Main Content */
.main-container{
    max-width:1400px;
    margin:0 auto;
    padding:0 24px 24px;
}
.message-area{
    margin-bottom:16px;
}
.message{
    display:flex;
    align-items:center;
    gap:10px;
    padding:14px 18px;
    border-radius:var(--radius-sm);
    font-size:14px;
    font-weight:500;
    animation:slideIn 0.3s ease;
}
@keyframes slideIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.message-success{background:var(--success-light);color:#059666;border:1px solid rgba(16,185,129,0.2)}
.message-error{background:var(--danger-light);color:#dc2626;border:1px solid rgba(239,68,68,0.2)}
.message-warning{background:var(--warning-light);color:#d97706;border:1px solid rgba(245,158,11,0.2)}
/* Toolbar */
.toolbar{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-bottom:20px;
    padding:16px;
    background:var(--bg-white);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
}
.toolbar .btn{font-size:13px;padding:8px 14px}
/* Status Bar */
.status-bar{
    display:flex;
    align-items:center;
    gap:20px;
    margin-bottom:16px;
    font-size:13px;
    color:var(--text-muted);
}
.status-bar strong{font-weight:500;color:var(--text-secondary)}
.status-bar span{display:flex;align-items:center;gap:6px}
/* File Table */
.file-table-container{
    background:var(--bg-white);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    overflow:hidden;
    border:1px solid var(--border);
}
.file-table{
    width:100%;
    border-collapse:collapse;
}
.file-table th{
    text-align:left;
    padding:14px 16px;
    background:var(--bg-gray);
    border-bottom:1px solid var(--border);
    color:var(--text-secondary);
    font-weight:600;
    font-size:12px;
    text-transform:uppercase;
    letter-spacing:0.5px;
}
.file-table td{
    padding:14px 16px;
    border-bottom:1px solid var(--border);
    color:var(--text);
    font-size:14px;
    vertical-align:middle;
}
.file-table tbody tr{
    transition:background-color 0.2s ease;
}
.file-table tbody tr:hover{
    background:var(--bg-gray);
}
.file-table tbody tr:last-child td{border-bottom:none}
.file-table tbody tr:has(input:checked){
    background:var(--primary-light);
}
.file-table th:first-child,
.file-table td:first-child{
    width:48px;
    text-align:center;
    padding:14px;
}
.file-table th:nth-child(2),
.file-table td:nth-child(2){width:35%}
.file-table th:nth-child(3),
.file-table td:nth-child(3){width:12%}
.file-table th:nth-child(4),
.file-table td:nth-child(4){width:18%}
.checkbox{
    width:18px;
    height:18px;
    cursor:pointer;
    accent-color:var(--primary);
    border-radius:4px;
}
.file-name{
    display:flex;
    align-items:center;
    gap:12px;
    font-weight:500;
}
.file-name a{
    color:var(--text);
    transition:color 0.2s;
}
.file-name a:hover{color:var(--primary)}
/* Action Buttons */
.action-buttons{
    display:flex;
    gap:6px;
    align-items:center;
}
.action-btn{
    padding:6px 12px;
    font-size:12px;
    font-weight:500;
    color:var(--text-secondary);
    background:var(--bg);
    border:1px solid var(--border);
    border-radius:var(--radius-xs);
    cursor:pointer;
    transition:all 0.2s ease;
    display:inline-flex;
    align-items:center;
    gap:4px;
    white-space:nowrap;
}
.action-btn:hover{
    background:var(--bg-white);
    color:var(--text);
    border-color:#d1d5db;
}
.action-btn.download{color:var(--success);background:var(--success-light);border-color:rgba(16,185,129,0.2)}
.action-btn.download:hover{background:rgba(16,185,129,0.12);color:#059666;border-color:rgba(16,185,129,0.3)}
.action-btn.zip{color:var(--warning);background:var(--warning-light);border-color:rgba(245,158,11,0.2)}
.action-btn.zip:hover{background:rgba(245,158,11,0.12);color:#d97706;border-color:rgba(245,158,11,0.3)}
.action-btn.edit{color:var(--primary);background:var(--primary-light);border-color:rgba(139,92,246,0.2)}
.action-btn.edit:hover{background:rgba(139,92,246,0.12);color:var(--primary-hover);border-color:rgba(139,92,246,0.3)}
.action-btn.extract{color:#ec4899;background:rgba(236,72,153,0.08);border-color:rgba(236,72,153,0.2)}
.action-btn.extract:hover{background:rgba(236,72,153,0.12);color:#db2777;border-color:rgba(236,72,153,0.3)}
.action-btn.delete{color:var(--danger);background:var(--danger-light);border-color:rgba(239,68,68,0.2)}
.action-btn.delete:hover{background:rgba(239,68,68,0.12);color:#dc2626;border-color:rgba(239,68,68,0.3)}
.qn-wrap{position:relative;display:inline-flex}
.qn-btn{min-width:108px}
.qn-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:280px;max-width:360px;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);padding:6px 0;display:none;z-index:200;max-height:70vh;overflow:auto}
.qn-wrap.open .qn-menu{display:block}
.qn-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 14px;color:var(--text);font-size:14px;text-decoration:none;transition:background .15s}
.qn-item:hover{background:var(--primary-light);color:var(--primary)}
.qn-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.qn-rm{width:22px;height:22px;border:none;background:transparent;color:var(--text-muted);cursor:pointer;border-radius:4px;font-size:16px;line-height:1;flex-shrink:0}
.qn-rm:hover{background:var(--danger-light);color:#dc2626}
.qn-empty{padding:14px;font-size:13px;color:var(--text-muted);text-align:center}
.qn-sep{height:1px;background:var(--border);margin:6px 0}
.qn-form{padding:10px 14px 12px;display:flex;flex-direction:column;gap:8px}
.qn-form input{padding:8px 10px;font-size:13px;border:1px solid var(--border);border-radius:6px;background:var(--bg)}
.qn-form input:focus{outline:none;border-color:var(--primary)}
.qn-form button{padding:8px;font-size:13px;border:none;border-radius:6px;background:var(--primary);color:#fff;cursor:pointer}
.qn-form button:hover{background:var(--primary-hover)}
/* Empty State */
.empty-state{
    text-align:center;
    padding:60px 20px;
    color:var(--text-muted);
}
.empty-state-icon{
    font-size:48px;
    margin-bottom:16px;
    opacity:0.5;
}
.empty-state p{font-size:14px}
/* Chmod */
.chmod-hint{font-size:13px;color:var(--text-secondary);margin-bottom:12px;line-height:1.5}
.chmod-list{max-height:220px;overflow:auto;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:16px;background:var(--bg)}
.chmod-row{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;padding:10px 12px;font-size:13px;border-bottom:1px solid var(--border)}
.chmod-row:last-child{border-bottom:none}
.chmod-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.chmod-name .tag{font-size:11px;color:var(--text-muted);font-weight:400;margin-left:6px}
.chmod-val{font-family:'Consolas','Monaco','Courier New',monospace;font-size:12px;color:var(--text-secondary);white-space:nowrap}
.chmod-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chmod-presets button{padding:6px 12px;font-size:12px;border:1px solid var(--border);border-radius:6px;background:var(--bg-white);color:var(--text-secondary);cursor:pointer}
.chmod-presets button:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.chmod-rec{margin-top:12px;font-size:13px;color:var(--text-secondary);display:flex;align-items:center;gap:8px}
.chmod-rec input{width:16px;height:16px}
.modal.chmod-wide{max-width:520px}
/* 复制/移动目标选择 */
.fm-dest-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.45);z-index:1100;display:none;align-items:center;justify-content:center;padding:16px}
.zip-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.45);z-index:1050;display:none;align-items:center;justify-content:center;padding:16px}
.zip-overlay.open{display:flex}
.zip-box{width:100%;max-width:380px;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden}
.zip-head{padding:14px 16px;font-size:16px;font-weight:600;border-bottom:1px solid var(--border)}
.zip-body{padding:14px 16px}
.zip-hint{font-size:13px;color:var(--text-secondary);margin-bottom:12px}
.zip-body .form-group{margin-bottom:0}
.zip-foot{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--border)}
.up-conflict-all{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:13px;color:var(--text-secondary);cursor:pointer}
.up-conflict-all input{width:16px;height:16px;margin:0}
.up-conflict-btns{display:flex;flex-direction:column;gap:8px;width:100%}
.up-conflict-btns .btn{width:100%;justify-content:center}
.fm-dest-overlay.open{display:flex}
.fm-dest-box{width:100%;max-width:420px;max-height:min(560px,88vh);background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden}
.fm-dest-head{padding:14px 16px;font-size:16px;font-weight:600;color:var(--text);border-bottom:1px solid var(--border)}
.fm-dest-info{padding:10px 16px;font-size:13px;color:var(--text-secondary);line-height:1.5}
.fm-dest-info em{font-style:normal;color:var(--primary);font-weight:500}
.fm-dest-target{padding:0 16px 10px;font-size:12px;color:var(--text-muted);word-break:break-all;font-family:'Consolas','Monaco','Courier New',monospace}
.fm-dest-target strong{color:var(--success);font-weight:600}
.fm-dest-target .err{color:var(--danger);display:block;margin-top:4px}
.fm-dest-nav{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border);flex-shrink:0}
.fm-dest-up,.fm-dest-root{padding:4px 10px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text-secondary);cursor:pointer;font-size:12px;flex-shrink:0}
.fm-dest-up:hover:not(:disabled),.fm-dest-root:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}
.fm-dest-up:disabled,.fm-dest-root:disabled{opacity:0.35;cursor:not-allowed}
.fm-dest-cur{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:var(--text-muted);font-family:'Consolas','Monaco','Courier New',monospace}
.fm-dest-list{flex:1;overflow:auto;padding:4px 0;min-height:140px;max-height:300px;-webkit-overflow-scrolling:touch}
.fm-dest-item{display:flex;align-items:center;gap:8px;padding:9px 16px;font-size:13px;color:var(--text);cursor:pointer;user-select:none}
.fm-dest-item:hover{background:var(--primary-light);color:var(--primary)}
.fm-dest-item.disabled{opacity:0.35;cursor:not-allowed;pointer-events:none}
.fm-dest-empty{padding:20px;text-align:center;font-size:13px;color:var(--text-muted);line-height:1.6}
.fm-dest-foot{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--border);flex-shrink:0}
.fm-dest-foot button{padding:8px 16px;font-size:13px;border-radius:6px;cursor:pointer;border:1px solid var(--border);background:var(--bg-white);color:var(--text-secondary)}
.fm-dest-foot button:hover{background:var(--bg);color:var(--text)}
.fm-dest-foot .fm-dest-ok{border-color:var(--primary);background:var(--primary);color:#fff;font-weight:600}
.fm-dest-foot .fm-dest-ok:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff}
.fm-dest-foot .fm-dest-ok:disabled{opacity:0.45;cursor:not-allowed}
/* Modal */
.modal-overlay{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.4);
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:1000;
    opacity:0;
    visibility:hidden;
    transition:opacity 0.15s ease;
}
.modal-overlay.active{opacity:1;visibility:visible}
.modal{
    background:var(--bg-white);
    border-radius:var(--radius);
    width:100%;
    max-width:420px;
    max-height:85vh;
    overflow:hidden;
    box-shadow:var(--shadow-lg);
}
.modal-header{
    padding:18px 20px;
    border-bottom:1px solid var(--border);
    font-size:17px;
    font-weight:600;
    display:flex;
    align-items:center;
    gap:10px;
}
.modal-header::before{
    content:'';
    width:4px;
    height:18px;
    background:var(--primary);
    border-radius:2px;
}
.modal-body{
    padding:20px;
}
.modal-footer{
    padding:14px 20px;
    background:var(--bg-gray);
    border-top:1px solid var(--border);
    display:flex;
    justify-content:flex-end;
    gap:10px;
}
.form-group{margin-bottom:18px}
.form-group label{
    display:block;
    margin-bottom:8px;
    font-size:14px;
    font-weight:500;
    color:var(--text-secondary);
}
.form-group input{
    width:100%;
    padding:12px 14px;
    font-size:16px;
    border:2px solid var(--border);
    border-radius:var(--radius-sm);
    background:var(--bg);
    transition:all 0.2s ease;
}
.form-group input:hover{border-color:#d1d5db}
.form-group input:focus{
    outline:none;
    border-color:var(--primary);
    background:var(--bg-white);
    box-shadow:0 0 0 4px var(--primary-light);
}
.form-group input::placeholder{color:var(--text-muted)}
/* Upload Area */
.upload-area{
    text-align:center;
    padding:36px 20px;
    border:2px dashed var(--border);
    border-radius:var(--radius-sm);
    cursor:pointer;
    color:var(--text-muted);
    transition:all 0.2s ease;
}
.upload-area:hover{
    border-color:var(--primary);
    background:var(--primary-light);
    color:var(--primary);
}
.upload-area-icon{
    font-size:32px;
    margin-bottom:10px;
    opacity:0.7;
}
.upload-btns{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap}
.upload-btns .btn{min-width:118px}
.upload-area-hint{font-size:12px;margin-top:8px;opacity:0.85;line-height:1.5}
/* Preview Modal */
.preview-overlay{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.85);
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:2000;
    opacity:0;
    visibility:hidden;
    transition:opacity 0.2s ease;
}
.preview-overlay.active{opacity:1;visibility:visible}
.preview-content{
    position:relative;
    max-width:90vw;
    max-height:90vh;
}
.preview-content img,
.preview-content video{
    max-width:100%;
    max-height:85vh;
    display:block;
    border-radius:var(--radius-sm);
    box-shadow:0 25px 50px -12px rgba(0,0,0,0.5);
}
.preview-close{
    position:absolute;
    top:-48px;
    right:0;
    width:40px;
    height:40px;
    font-size:24px;
    color:#ffffff;
    background:rgba(255,255,255,0.1);
    border:none;
    border-radius:50%;
    cursor:pointer;
    transition:background 0.2s ease;
}
.preview-close:hover{background:rgba(255,255,255,0.2)}
/* Toast */
.toast{
    position:fixed;
    top:20px;
    right:20px;
    padding:14px 20px;
    background:var(--bg-white);
    color:var(--text);
    border-radius:var(--radius-sm);
    box-shadow:var(--shadow-lg);
    font-size:14px;
    font-weight:500;
    z-index:10000;
    display:flex;
    flex-direction:column;
    gap:10px;
    animation:slideInRight 0.3s ease;
    border:1px solid var(--border);
}
@keyframes slideInRight{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
.toast progress{
    width:180px;
    height:5px;
    border-radius:3px;
    overflow:hidden;
    background:var(--border);
}
.toast progress::-webkit-progress-value{
    background:var(--primary);
    border-radius:3px;
    transition:width 0.3s ease;
}
/* Responsive */
@media(max-width:768px){
    .header{padding:12px 16px;flex-wrap:wrap;gap:12px}
    .header-left{flex-wrap:wrap;order:1}
    .header-right{order:2;flex-wrap:wrap}
    .main-container{padding:16px}
    .toolbar{padding:12px}
    .toolbar .btn{flex:1;min-width:calc(50% - 5px)}
    .file-table th:nth-child(3),
    .file-table td:nth-child(3),
    .file-table th:nth-child(4),
    .file-table td:nth-child(4),
    .file-table th:nth-child(5),
    .file-table td:nth-child(5){display:none}
    .file-table td:nth-child(2){max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .file-table td:last-child,.file-table th:last-child{width:auto;min-width:148px}
    .action-buttons{flex-wrap:wrap;gap:4px;justify-content:flex-start}
    .action-btn{padding:4px 6px;font-size:10px;flex-shrink:0}
    .breadcrumbs{font-size:13px}
    .login-status{display:none}
    .header-right{width:100%;gap:8px}
    .header-right .btn,.header-right .qn-wrap{flex:1 1 auto;min-width:0}
    .qn-wrap.open .qn-menu{position:fixed;left:12px;right:12px;min-width:0;max-width:none;z-index:1000;max-height:min(75vh,calc(100vh - 72px));-webkit-overflow-scrolling:touch}
    .qn-btn{min-width:0;font-size:13px;padding:8px 10px}
    .qn-form input,.qn-form button{width:100%;box-sizing:border-box}
    .qn-form button{padding:10px;white-space:nowrap}
}
</style>
</head>
<body>
<svg class="svg-sprite">
<symbol id="icon-folder" viewBox="0 0 24 24"><path d="M20 6h-8l-2-2H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2z"/></symbol>
<symbol id="icon-folder-open" viewBox="0 0 24 24"><path d="M20 6h-8l-2-2H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2zm0 12H4V8h16v10z"/></symbol>
<symbol id="icon-file" viewBox="0 0 24 24"><path d="M14 2H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V8l-6-6zm2 16H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z"/></symbol>
<symbol id="icon-image" viewBox="0 0 24 24"><path d="M21 19V5c0-1.1-.9-2-2-2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2zM8.5 13.5l2.5 3.01L14.5 12l4.5 6H5l3.5-4.5z"/></symbol>
<symbol id="icon-video" viewBox="0 0 24 24"><path d="M18 4l2 4h-3l-2-4h-2l2 4h-3l-2-4H8l2 4H7L5 4H4c-1.1 0-1.99.9-1.99 2L2 18c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V4h-4z"/></symbol>
<symbol id="icon-audio" viewBox="0 0 24 24"><path d="M12 3v10.55c-.59-.34-1.27-.55-2-.55-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4V7h4V3h-6z"/></symbol>
<symbol id="icon-archive" viewBox="0 0 24 24"><path d="M20 6h-4V4c0-1.11-.89-2-2-2h-4c-1.11 0-2 .89-2 2v2H4c-1.11 0-1.99.89-1.99 2L2 19c0 1.11.89 2 2 2h16c1.11 0 2-.89 2-2V8c0-1.11-.89-2-2-2zm-6 0h-4V4h4v2z"/></symbol>
<symbol id="icon-file-text" viewBox="0 0 24 24"><path d="M14 2H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V8l-6-6zm2 16H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z"/></symbol>
<symbol id="icon-refresh" viewBox="0 0 24 24"><path d="M17.65 6.35C16.2 4.9 14.21 4 12 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08c-.82 2.33-3.04 4-5.65 4-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z"/></symbol>
<symbol id="icon-save" viewBox="0 0 24 24"><path d="M17 3H5c-1.11 0-2 .9-2 2v14c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V7l-4-4zm-5 16c-1.66 0-3-1.34-3-3s1.34-3 3-3 3 1.34 3 3-1.34 3-3 3zm3-10H5V5h10v4z"/></symbol>
<symbol id="icon-copy" viewBox="0 0 24 24"><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z"/></symbol>
<symbol id="icon-cut" viewBox="0 0 24 24"><path d="M9.64 7.64c.23-.5.36-1.05.36-1.64 0-2.21-1.79-4-4-4S2 3.79 2 6s1.79 4 4 4c.59 0 1.14-.13 1.64-.36L10 12l-2.36 2.36C7.14 14.13 6.59 14 6 14c-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4c0-.59-.13-1.14-.36-1.64L12 14l7 7h3v-1L9.64 7.64zM6 8c-1.1 0-2-.89-2-2s.9-2 2-2 2 .89 2 2-.9 2-2 2zm0 12c-1.1 0-2-.89-2-2s.9-2 2-2 2 .89 2 2-.9 2-2 2zm6-7.5c-.28 0-.5-.22-.5-.5s.22-.5.5-.5.5.22.5.5-.22.5-.5.5zM19 3l-6 6 2 2 7-7V3z"/></symbol>
<symbol id="icon-delete" viewBox="0 0 24 24"><path d="M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z"/></symbol>
<symbol id="icon-download" viewBox="0 0 24 24"><path d="M19 9h-4V3H9v6H5l7 7 7-7zM5 18v2h14v-2H5z"/></symbol>
<symbol id="icon-upload" viewBox="0 0 24 24"><path d="M9 16h6v-6h4l-7-7-7 7h4zm-4 2h14v2H5z"/></symbol>
<symbol id="icon-check" viewBox="0 0 24 24"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"/></symbol>
<symbol id="icon-close" viewBox="0 0 24 24"><path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></symbol>
<symbol id="icon-warning" viewBox="0 0 24 24"><path d="M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z"/></symbol>
<symbol id="icon-password" viewBox="0 0 24 24"><path d="M18 8h-1V6c0-2.76-2.24-5-5-5S7 3.24 7 6v2H6c-1.1 0-2 .9-2 2v10c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V10c0-1.1-.9-2-2-2zm-6 9c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zm3.1-9H8.9V6c0-1.71 1.39-3.1 3.1-3.1 1.71 0 3.1 1.39 3.1 3.1v2z"/></symbol>
<symbol id="icon-lock" viewBox="0 0 24 24"><path d="M18 8h-1V6c0-2.76-2.24-5-5-5S7 3.24 7 6v2H6c-1.1 0-2 .9-2 2v10c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V10c0-1.1-.9-2-2-2zm-6 9c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zm3.1-9H8.9V6c0-1.71 1.39-3.1 3.1-3.1 1.71 0 3.1 1.39 3.1 3.1v2z"/></symbol>
</svg>

<div class="header">
<div class="header-left">
<div class="logo-icon"><svg><use href="#icon-folder"></use></svg></div>
<div class="breadcrumbs" id="breadcrumbs"></div>
</div>
<div class="header-right">
<div class="qn-wrap" id="qnWrap">
<button type="button" class="btn btn-secondary qn-btn" onclick="toggleQn(event)">快速编辑 ▾</button>
<div class="qn-menu" id="qnMenu"></div>
</div>
<span class="login-status">已登录</span>
<button class="btn btn-secondary" onclick="om('cpw')">
<span class="icon"><svg><use href="#icon-password"></use></svg></span>
修改密码
</button>
<button class="btn btn-secondary" onclick="logout()">退出</button>
</div>
</div>

<div class="main-container">
<div class="message-area" id="msgArea"></div>

<div class="toolbar">
<button class="btn btn-primary" onclick="om('cf')">
<span class="icon"><svg><use href="#icon-file"></use></svg></span>
新建文件
</button>
<button class="btn btn-primary" onclick="om('cd')">
<span class="icon"><svg><use href="#icon-folder"></use></svg></span>
新建文件夹
</button>
<button class="btn btn-primary" onclick="ocp_sel()">
<span class="icon"><svg><use href="#icon-copy"></use></svg></span>
复制
</button>
<button class="btn btn-primary" onclick="omv_sel()">
<span class="icon"><svg><use href="#icon-cut"></use></svg></span>
移动
</button>
<button class="btn btn-secondary" onclick="ozip_sel()">
<span class="icon"><svg><use href="#icon-archive"></use></svg></span>
压缩
</button>
<button class="btn btn-danger" onclick="odel_sel()">
<span class="icon"><svg><use href="#icon-delete"></use></svg></span>
删除
</button>
<button class="btn btn-success" onclick="om('dlurl')">
<span class="icon"><svg><use href="#icon-download"></use></svg></span>
离线下载
</button>
<button class="btn btn-secondary" onclick="om('up')">
<span class="icon"><svg><use href="#icon-upload"></use></svg></span>
上传文件
</button>
<button class="btn btn-secondary" onclick="ochmod_sel()">
<span class="icon"><svg><use href="#icon-lock"></use></svg></span>
权限
</button>
</div>

<div class="file-table-container">
<table class="file-table">
<thead>
<tr>
<th style="width:40px;text-align:center"><input type="checkbox" class="checkbox" onchange="toggleAll(this)"></th>
<th>名称</th>
<th>大小</th>
<th>修改时间</th>
<th style="width:88px">权限</th>
<th>操作</th>
</tr>
</thead>
<tbody id="fileList"></tbody>
</table>
</div>
</div>

<div class="modal-overlay" id="mo" onclick="if(event.target===this)this.classList.remove('active')">
<div class="modal" onclick="event.stopPropagation()">
<div class="modal-header" id="mt">操作</div>
<div class="modal-body" id="mb"></div>
<div class="modal-footer">
<button class="btn btn-secondary" onclick="document.getElementById('mo').classList.remove('active')">取消</button>
<button class="btn btn-primary" id="ms">确定</button>
</div>
</div>
</div>

<div class="preview-overlay" id="pvmo" onclick="if(event.target===this)this.classList.remove('active')">
<div class="preview-content" onclick="event.stopPropagation()">
<div class="pvc" id="pvcc"></div>
<button class="preview-close" onclick="document.getElementById('pvmo').classList.remove('active')">×</button>
</div>
</div>

<div class="modal-overlay" id="cpwmo" onclick="if(event.target===this)this.classList.remove('active')">
<div class="modal" onclick="event.stopPropagation()" style="max-width:380px">
<div class="modal-header">修改密码</div>
<div class="modal-body" style="padding-top:12px">
<div class="form-group"><label>原密码</label><input type="password" id="cpwOld" placeholder="输入原密码"></div>
<div class="form-group"><label>新密码</label><input type="password" id="cpwNew" placeholder="输入新密码"></div>
<div class="form-group"><label>确认密码</label><input type="password" id="cpwConfirm" placeholder="再次输入新密码"></div>
</div>
<div class="modal-footer">
<button class="btn btn-secondary" onclick="document.getElementById('cpwmo').classList.remove('active')">取消</button>
<button class="btn btn-primary" onclick="cpw()">确认修改</button>
</div>
</div>
</div>

<div class="zip-overlay" id="zipOverlay" onclick="if(event.target===this)zipClose()">
<div class="zip-box" onclick="event.stopPropagation()">
<div class="zip-head">压缩为 ZIP</div>
<div class="zip-body">
<p class="zip-hint">已选 <span id="zipCount">0</span> 项</p>
<div class="form-group"><label for="zipName">压缩包名称</label><input type="text" id="zipName" placeholder="如 backup.zip" autocomplete="off"></div>
</div>
<div class="zip-foot">
<button type="button" class="btn btn-secondary" onclick="zipClose()">取消</button>
<button type="button" class="btn btn-primary" onclick="zipDo()">开始压缩</button>
</div>
</div>
</div>

<div class="zip-overlay" id="upConflictOverlay" onclick="if(event.target===this)uploadConflictPick('cancel')">
<div class="zip-box" onclick="event.stopPropagation()">
<div class="zip-head">文件已存在</div>
<div class="zip-body">
<p class="zip-hint"><strong id="upConflictName" style="word-break:break-all"></strong> 已存在，请选择处理方式：</p>
<label class="up-conflict-all"><input type="checkbox" id="upConflictAll"> 全部应用此选择（本次上传）</label>
</div>
<div class="zip-foot up-conflict-btns">
<button type="button" class="btn btn-primary" onclick="uploadConflictPick('replace')">替换</button>
<button type="button" class="btn btn-secondary" onclick="uploadConflictPick('copy')">保留为副本</button>
<button type="button" class="btn btn-secondary" onclick="uploadConflictPick('cancel')">取消</button>
</div>
</div>
</div>

<input type="file" id="upfile" multiple style="display:none" onchange="uploadFilePick(this,false)">
<input type="file" id="updir" multiple webkitdirectory directory style="display:none" onchange="uploadFilePick(this,true)">

<div class="fm-dest-overlay" id="fmDestOverlay" onclick="if(event.target===this)fmDestClose()">
<div class="fm-dest-box" onclick="event.stopPropagation()">
<div class="fm-dest-head" id="fmDestHead">选择目标文件夹</div>
<div class="fm-dest-info" id="fmDestInfo"></div>
<div class="fm-dest-target" id="fmDestTarget"></div>
<div class="fm-dest-nav">
<button type="button" class="fm-dest-up" id="fmDestUp" onclick="fmDestUp()">↑ 上级</button>
<button type="button" class="fm-dest-root" id="fmDestRoot" onclick="fmDestGoRoot()">根目录</button>
<span class="fm-dest-cur" id="fmDestCur" title="">.</span>
</div>
<div class="fm-dest-list" id="fmDestList"></div>
<div class="fm-dest-foot">
<button type="button" onclick="fmDestClose()">取消</button>
<button type="button" class="fm-dest-ok" id="fmDestOk" onclick="fmDestConfirm()">确认</button>
</div>
</div>
</div>

<script>
var currentItems=[];
var currentAction='';
var currentNames=[];

function escapeHtml(text){return text.replace(/[&<>"']/g,function(m){return{'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;','\'':'&#039;'}[m]})}
function renderBreadcrumbs(dir){var parts=dir.split('/').filter(function(p){return p});var h='<a onclick="navigateTo(\'.\')">根目录</a>';var p='';parts.forEach(function(x,i){p+=(p?'/':'')+x;h+=i===parts.length-1?'<span> / '+escapeHtml(x)+'</span>':'<span> / </span><a onclick="navigateTo(\''+p+'\')">'+escapeHtml(x)+'</a>';});if(parts.length===0)h+='<span> / 根目录</span>';document.getElementById('breadcrumbs').innerHTML=h;}

function renderFileList(items){currentItems=items;zipItemDirMap=null;var tbody=document.getElementById('fileList');if(items.length===0){tbody.innerHTML='<tr><td colspan="6" class="empty-state"><div class="empty-state-icon"><span class="icon" style="width:48px;height:48px;opacity:0.5"><svg><use href="#icon-folder-open"></use></svg></span></div><p>此目录为空</p></td></tr>';return;}
var imgs=['jpg','jpeg','png','gif','bmp','webp','svg','ico'];var videos=['mp4','webm','ogg','mov','avi','mkv','flv','wmv','m4v'];var audios=['mp3','wav','oga','flac','aac','m4a','wma'];var zips=['zip','7z','rar','tar','gz','bz2','xz'];var docs=['txt','md','json','xml','html','htm','css','js','php','py','java','c','cpp','h','go','rs','yaml','yml','ini','conf'];var ej=function(s){return String(s).replace(/[\\"']/g,function(c){return'\\'+c;})};var gi=function(ext,d){if(d)return'folder';if(imgs.includes(ext))return'image';if(videos.includes(ext))return'video';if(audios.includes(ext))return'audio';if(zips.includes(ext))return'archive';if(docs.includes(ext))return'file-text';return'file'};var gc=function(t){var m={folder:'folder',image:'image',video:'video',audio:'audio',archive:'archive','file-text':'document','file':'other'};return'file-icon-'+(m[t]||'other')};
var html=items.map(function(i){var e=i.n.split('.').pop().toLowerCase();var ic=gi(e,i.d);var cc=gc(ic);var nh=i.d?'<span class="icon '+cc+'" style="width:20px;height:20px"><svg><use href="#icon-'+ic+'"></use></svg></span><a href="javascript:void(0)" onclick="navigateTo(\''+ej(i.p)+'\')">'+escapeHtml(i.n)+'</a>':'<span class="icon '+cc+'" style="width:20px;height:20px"><svg><use href="#icon-'+ic+'"></use></svg></span>'+(imgs.includes(e)||videos.includes(e)?'<a href="javascript:void(0)" onclick="pv(\''+ej(i.p)+'\',\''+e+'\')">'+escapeHtml(i.n)+'</a>':'<span>'+escapeHtml(i.n)+'</span>');var ac='<button class="action-btn download" onclick="downloadItem(\''+ej(i.n)+'\')">下载</button>';if(i.d)ac+='<button class="action-btn zip" onclick="zipItem(\''+ej(i.n)+'\')">压缩</button>';else{ac+='<a class="action-btn edit" href="javascript:void(0)" onclick="editItem(\''+ej(i.n)+'\')">编辑</a>';if(zips.includes(e))ac+='<button class="action-btn extract" onclick="extractItem(\''+ej(i.n)+'\')">解压</button>';}ac+='<button class="action-btn" onclick="orn(\''+ej(i.n)+'\')">重命名</button><button class="action-btn delete" onclick="deleteItem(\''+ej(i.n)+'\')">删除</button>';var pm=i.pm?'<code style="font-size:12px" title="'+escapeHtml(i.ps||'')+'">'+escapeHtml(i.pm)+'</code>':'-';return'<tr><td style="text-align:center"><input type="checkbox" class="checkbox" name="sn" value="'+escapeHtml(i.n)+'" onchange="updateCheckState()"></td><td><div class="file-name">'+nh+'</div></td><td>'+i.szf+'</td><td>'+i.mt+'</td><td>'+pm+'</td><td><div class="action-buttons">'+ac+'</div></td></tr>';}).join('');tbody.innerHTML=html;}

function updateCheckState(){var a=document.querySelectorAll('input[name="sn"]');var c=document.querySelectorAll('input[name="sn"]:checked');if(a.length>0){var h=document.querySelector('.file-table thead input[type="checkbox"]');if(h)h.checked=c.length===a.length;}}function toggleAll(cb){document.querySelectorAll('input[name="sn"]').forEach(function(e){e.checked=cb.checked;});}
async function loadDirectory(dir){var fd=new FormData();fd.append('a','ls');fd.append('dir',dir);var r=await fetch('',{method:'POST',body:fd});var d=await r.json();if(d.s){currentDir=d.dir;renderBreadcrumbs(d.dir);renderFileList(d.items);history.pushState({dir:dir},'','?dir='+encodeURIComponent(dir));}}function navigateTo(dir){loadDirectory(dir);}

async function logout(){var fd=new FormData();fd.append('a','lo');await fetch('',{method:'POST',body:fd});location.reload();}
function showMsg(msg,type){var a=document.getElementById('msgArea');var c=type==='s'?'message-success':type==='e'?'message-error':'message-warning';var ic=type==='s'?'check':type==='e'?'close':'warning';a.innerHTML='<div class="message '+c+'"><span class="icon" style="margin-right:8px"><svg><use href="#icon-'+ic+'"></use></svg></span> '+msg+'</div>';setTimeout(function(){a.innerHTML='';},5000);}function fs(b){var u=['B','KB','MB','GB'];var i=0;while(b>=1024&&i<3){b/=1024;i++;}return Math.round(b*100)/100+' '+u[i];}function showToast(msg,pct){var t=document.createElement('div');t.className='toast';t.innerHTML=msg+(pct!==undefined?'<br><progress value="'+pct+'" max="100"></progress>':'');document.body.appendChild(t);return t;}function fmtElapsed(sec){sec=Math.max(0,+sec||0);if(sec<60)return Math.round(sec*100)/100+' 秒';var m=Math.floor(sec/60),s=Math.round((sec-m*60)*10)/10;if(m<60)return m+' 分 '+s+' 秒';var h=Math.floor(m/60);m=m%60;return h+' 小时 '+m+' 分 '+s+' 秒';}function longTaskFetch(label,fd,done){var t0=Date.now(),t=showToast(label+'... 0 秒'),iv=setInterval(function(){t.innerHTML=label+'... '+fmtElapsed((Date.now()-t0)/1000);},200);fetch('',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.text().then(function(text){var d;try{d=JSON.parse(text);}catch(e){var hint=text&&text.trim()?text.trim().replace(/\s+/g,' ').slice(0,160):('HTTP '+r.status);throw new Error(hint);}return d;});}).then(function(d){clearInterval(iv);t.remove();var tm=d.timef||fmtElapsed(d.time!=null?d.time:(Date.now()-t0)/1000);done(d,tm);}).catch(function(err){clearInterval(iv);t.remove();showMsg(label+'失败: '+(err&&err.message?err.message:'网络错误或请求中断'),'e');});}

function om(t){currentAction=t;var mo=document.getElementById('mo'),mt=document.getElementById('mt'),mb=document.getElementById('mb'),ms=document.getElementById('ms'),modal=mo?mo.querySelector('.modal'):null;if(modal)modal.classList.remove('chmod-wide');if(t==='cpw'){document.getElementById('cpwOld').value='';document.getElementById('cpwNew').value='';document.getElementById('cpwConfirm').value='';document.getElementById('cpwmo').classList.add('active');setTimeout(function(){document.getElementById('cpwOld').focus();},100);return;}
mo.classList.add('active');if(t==='cf'){mt.textContent='新建文件';mb.innerHTML='<div class="form-group"><label>文件名</label><input type="text" id="nin" placeholder="输入文件名"></div>';ms.onclick=cf;ms.style.display='inline-flex';ms.textContent='确定';}
else if(t==='cd'){mt.textContent='新建文件夹';mb.innerHTML='<div class="form-group"><label>文件夹名</label><input type="text" id="nin" placeholder="输入文件夹名"></div>';ms.onclick=cd;ms.style.display='inline-flex';ms.textContent='确定';}
else if(t==='up'){mt.textContent='上传文件 / 文件夹';mb.innerHTML='<div id="uploadDrop" class="upload-area"><div class="upload-area-icon"><span class="icon" style="width:48px;height:48px"><svg><use href="#icon-upload"></use></svg></span></div><p>拖拽文件或文件夹到此处上传</p><p class="upload-area-hint">支持多选文件；选择文件夹将保留目录结构</p><div class="upload-btns"><button type="button" class="btn btn-primary" onclick="event.stopPropagation();document.getElementById(\'upfile\').click()">选择文件</button><button type="button" class="btn btn-secondary" onclick="event.stopPropagation();document.getElementById(\'updir\').click()">选择文件夹</button></div></div>';ms.style.display='none';setTimeout(initUploadDrop,50);}
else if(t==='dlurl'){mt.textContent='离线下载';mb.innerHTML='<div class="form-group"><label>下载链接</label><input type="text" id="dlurl" placeholder="输入文件URL地址"></div>';ms.onclick=dlurl;ms.style.display='inline-flex';ms.textContent='开始下载';setTimeout(function(){document.getElementById('dlurl').focus();},100);}}

function cf(){var n=document.getElementById('nin').value;if(!n)return;var fd=new FormData();fd.append('a','cf');fd.append('dir',currentDir);fd.append('n',n);fetch('',{method:'POST',body:fd}).then(function(r){return r.json();}).then(function(d){if(d.s){showMsg('文件创建成功: '+d.n,'s');loadDirectory(currentDir);}else{showMsg('创建失败: '+d.e,'e');}document.getElementById('mo').classList.remove('active');});}
function cd(){var n=document.getElementById('nin').value;if(!n)return;var fd=new FormData();fd.append('a','cd');fd.append('dir',currentDir);fd.append('n',n);fetch('',{method:'POST',body:fd}).then(function(r){return r.json();}).then(function(d){if(d.s){showMsg('文件夹创建成功: '+d.n,'s');loadDirectory(currentDir);}else{showMsg('创建失败: '+d.e,'e');}document.getElementById('mo').classList.remove('active');});}
function uploadHasDirPaths(files){for(var i=0;i<files.length;i++){var r=files[i].webkitRelativePath||files[i].relativePath||'';if(r&&r.indexOf('/')>=0)return true;}return false;}
function uploadFilePick(input,isDir){var files=input&&input.files;if(!files||!files.length)return;uploadFilesBatch(files,isDir);input.value='';}
var upConflictAll=null,upConflictPending=null;
function uploadConflictReset(){upConflictAll=null;var el=document.getElementById('upConflictAll');if(el)el.checked=false;}
function uploadConflictClose(){var o=document.getElementById('upConflictOverlay');if(o)o.classList.remove('open');upConflictPending=null;}
function uploadConflictPick(mode){var p=upConflictPending;if(!p)return;var allEl=document.getElementById('upConflictAll');if(allEl&&allEl.checked&&mode!=='cancel')upConflictAll=mode;uploadConflictClose();if(p.resolve)p.resolve(mode);}
function uploadConflictAsk(name){return new Promise(function(resolve){if(upConflictAll){resolve(upConflictAll);return;}upConflictPending={resolve:resolve};var nm=document.getElementById('upConflictName');if(nm)nm.textContent=name;var o=document.getElementById('upConflictOverlay');if(o)o.classList.add('open');else resolve('replace');});}
function uploadCheckExists(dir,rel,name,url){var fd=new FormData();fd.append('a','upchk');fd.append('dir',dir);if(rel)fd.append('rel',rel);else fd.append('n',name||'');return fetch(url||'',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.json();});}
function uploadSendFile(dir,file,rel,mode,url){return new Promise(function(resolve){var xhr=new XMLHttpRequest();var fd=new FormData();fd.append('a','up');fd.append('dir',dir);fd.append('fl',file,file.name||'file');if(rel)fd.append('rel',rel);if(mode)fd.append('mode',mode);xhr.onload=function(){try{resolve(JSON.parse(xhr.responseText));}catch(e){resolve({s:false,e:'响应异常'});}};xhr.onerror=function(){resolve({s:false,e:'网络错误'});};xhr.open('POST',url||'');xhr.send(fd);});}
async function uploadFileWithConflict(dir,file,rel,url){var name=rel||file.name||'file';var chk=await uploadCheckExists(dir,rel,file.name,url);if(!chk.s)return chk;var mode='';if(chk.exists){mode=await uploadConflictAsk(chk.n||name);if(mode==='cancel')return{s:false,e:'已取消',skip:true};}var d=await uploadSendFile(dir,file,rel,mode,url);if(d.conflict&&!mode){mode=await uploadConflictAsk(d.n||name);if(mode==='cancel')return{s:false,e:'已取消',skip:true};return uploadSendFile(dir,file,rel,mode,url);}return d;}
function uploadOneFile(file,rel,cb){uploadFileWithConflict(currentDir,file,rel,'').then(cb);}
function uploadFilesBatch(files,isDir){var n=files.length;if(!n)return;uploadConflictReset();var t=showToast('上传 0/'+n+' …'),ok=0,fail=0,skip=0,lastErr='',i=0;(function next(){if(i>=n){t.remove();loadDirectory(currentDir);if(fail)showMsg('上传完成：'+ok+' 成功，'+fail+' 失败'+(skip?'，'+skip+' 已跳过':'')+(lastErr?'（'+lastErr+'）':''),'e');else if(skip)showMsg('上传完成：'+ok+' 成功，'+skip+' 已跳过','w');else{showMsg('已上传 '+ok+' 个文件','s');document.getElementById('mo').classList.remove('active');}return;}var file=files[i],rel=isDir&&(file.webkitRelativePath||file.relativePath)?(file.webkitRelativePath||file.relativePath):'';t.innerHTML='上传 '+(i+1)+'/'+n+'：'+(rel||file.name);uploadOneFile(file,rel,function(d){if(d.s)ok++;else if(d.skip)skip++;else{fail++;lastErr=d.e||'失败';}i++;next();});})();}
function initUploadDrop(){var dz=document.getElementById('uploadDrop');if(!dz||dz._upBound)return;dz._upBound=1;['dragenter','dragover'].forEach(function(ev){dz.addEventListener(ev,function(e){e.preventDefault();e.stopPropagation();dz.style.borderColor='var(--primary)';dz.style.background='var(--primary-light)';});});['dragleave','drop'].forEach(function(ev){dz.addEventListener(ev,function(e){e.preventDefault();e.stopPropagation();dz.style.borderColor='';dz.style.background='';});});dz.addEventListener('drop',function(e){var fl=e.dataTransfer&&e.dataTransfer.files;if(!fl||!fl.length)return;uploadFilesBatch(fl,uploadHasDirPaths(fl));});}
function downloadItem(n){window.location.href='?dw='+encodeURIComponent(n)+'&dir='+encodeURIComponent(currentDir);}
var zipItemDirMap=null;
function zipBuildDirMap(){var m=Object.create(null),i;for(i=0;i<currentItems.length;i++)m[currentItems[i].n]=!!currentItems[i].d;zipItemDirMap=m;}
function zipDefaultName(ns){if(!ns||!ns.length)return'archive.zip';if(ns.length===1){var n=ns[0],isDir=zipItemDirMap?!!zipItemDirMap[n]:false;if(isDir)return n+'.zip';var dot=n.lastIndexOf('.');return(dot>0?n.slice(0,dot):n)+'.zip';}var d=new Date(),p=function(x){return String(x).padStart(2,'0');};return'selected_'+d.getFullYear()+p(d.getMonth()+1)+p(d.getDate())+'_'+p(d.getHours())+p(d.getMinutes())+p(d.getSeconds())+'.zip';}
function zipClose(){var o=document.getElementById('zipOverlay');if(o)o.classList.remove('open');}
function zipOpen(){var o=document.getElementById('zipOverlay'),inp=document.getElementById('zipName'),cnt=document.getElementById('zipCount');if(!o||!inp)return;zipBuildDirMap();if(cnt)cnt.textContent=String(currentNames.length);inp.value=zipDefaultName(currentNames);o.classList.add('open');requestAnimationFrame(function(){inp.focus();inp.select();});}
function zipDo(){var inp=document.getElementById('zipName'),name=inp?inp.value.trim():'';if(!name)return showMsg('请输入压缩包名称','w');if(!currentNames||!currentNames.length)return showMsg('没有选中项目','w');var fd=new FormData();fd.append('a','zp');fd.append('dir',currentDir);fd.append('zfn',name);currentNames.forEach(function(n){fd.append('n[]',n);});zipClose();longTaskFetch('压缩',fd,function(d,tm){if(d.s){showMsg(d.msg||('压缩成功，耗时 '+tm),'s');loadDirectory(currentDir);}else showMsg(d.msg||('压缩失败，耗时 '+tm),'e');});}
function zipItem(n){currentNames=[n];zipOpen();}
function ozip_sel(){var ns=getSelNames();if(!ns.length)return showMsg('请先选择要压缩的项目','w');currentNames=ns;zipOpen();}
function extractItem(n){if(!confirm('确定要解压 '+n+' 吗？'))return;var fd=new FormData();fd.append('a','ex');fd.append('dir',currentDir);fd.append('n',n);longTaskFetch('解压 '+n,fd,function(d,tm){if(d.s){showMsg(d.msg||('解压成功，耗时 '+tm),'s');loadDirectory(currentDir);}else showMsg(d.msg||('解压失败，耗时 '+tm),'e');});}
function editItem(n){window.location.href='?edit='+encodeURIComponent(currentDir+'/'+n)+'&dir='+encodeURIComponent(currentDir);}
function orn(on){om('rn');document.getElementById('mt').textContent='重命名';document.getElementById('mb').innerHTML='<div class="form-group"><label>新名称</label><input type="text" id="nn" value="'+on+'" placeholder="输入新名称"></div>';document.getElementById('ms').onclick=function(){var nn=document.getElementById('nn').value;if(!nn||nn===on)return;var fd=new FormData();fd.append('a','rn');fd.append('dir',currentDir);fd.append('on',on);fd.append('nn',nn);fetch('',{method:'POST',body:fd}).then(function(r){return r.json();}).then(function(d){if(d.s){showMsg('重命名成功','s');loadDirectory(currentDir);}else{showMsg('重命名失败','e');}document.getElementById('mo').classList.remove('active');});};}
function deleteItem(n){if(!confirm('确定要删除 "'+n+'" 吗？此操作不可恢复！'))return;var fd=new FormData();fd.append('a','del');fd.append('dir',currentDir);fd.append('n[]',n);fetch('',{method:'POST',body:fd}).then(function(r){return r.json();}).then(function(d){showMsg(d.msg,d.s?'s':'e');loadDirectory(currentDir);});}
function odel_sel(){var ns=Array.from(document.querySelectorAll('input[name="sn"]:checked')).map(function(e){return e.value;});if(ns.length===0)return showMsg('请先选择要删除的项目','w');if(!confirm('确定要删除 '+ns.length+' 个项目吗？此操作不可恢复！'))return;var fd=new FormData();fd.append('a','del');fd.append('dir',currentDir);ns.forEach(function(n){fd.append('n[]',n);});fetch('',{method:'POST',body:fd}).then(function(r){return r.json();}).then(function(d){showMsg(d.msg,d.s?'s':'e');loadDirectory(currentDir);});}
var fmDestAction='',fmDestPickDir='.',fmDestParent=null;
function fmNormPath(p){p=String(p).replace(/\\/g,'/').replace(/\/+/g,'/');if(!p||p==='.')return '.';var parts=p.split('/'),out=[],i,s;for(i=0;i<parts.length;i++){s=parts[i];if(!s||s==='.')continue;if(s==='..'){if(out.length&&out[out.length-1]!=='..')out.pop();else out.push('..');}else out.push(s);}return out.length?out.join('/'):'.';}
function fmPathEq(a,b){return fmNormPath(a)===fmNormPath(b);}
function fmFmtDir(d){d=fmNormPath(d||'.');return d==='.'?'/ (根目录)':'/'+d;}
function fmAttr(s){return String(s).replace(/&/g,'&amp;').replace(/"/g,'&quot;');}
function fmItemIsDir(n){for(var i=0;i<currentItems.length;i++){if(currentItems[i].n===n)return!!currentItems[i].d;}return false;}
function fmSelSrcPath(n){return fmNormPath(currentDir==='.'?n:currentDir+'/'+n);}
function fmDestInvalidMsg(destDir){destDir=fmNormPath(destDir);var srcDir=fmNormPath(currentDir);if(fmDestAction==='cp'&&fmPathEq(destDir,srcDir))return'目标目录与来源目录相同';if(fmDestAction==='mv'&&fmPathEq(destDir,srcDir))return'目标目录与来源目录相同，请选其他目录';var i,n,src,destPath,op;for(i=0;i<currentNames.length;i++){n=currentNames[i];src=fmSelSrcPath(n);destPath=fmNormPath(destDir==='.'?n:destDir+'/'+n);if(fmDestAction==='mv'&&fmPathEq(src,destPath))return'「'+n+'」目标与当前位置相同';if(fmItemIsDir(n)){op=src+'/';if(fmPathEq(destDir,src)||(destDir!=='.'&&destDir.indexOf(op)===0))return'不能将文件夹「'+n+'」'+(fmDestAction==='mv'?'移动到':'复制到')+'自身或其子目录';}}return'';}
function fmDestRowInvalid(folderPath){var i;for(i=0;i<currentNames.length;i++){if(!fmItemIsDir(currentNames[i]))continue;var src=fmSelSrcPath(currentNames[i]),p=fmNormPath(folderPath),op=src+'/';if(fmPathEq(p,src)||(p!=='.'&&p.indexOf(op)===0))return true;}return false;}
function fmDestUpdate(){var el=document.getElementById('fmDestTarget'),ok=document.getElementById('fmDestOk');if(!el)return;var dest=fmNormPath(fmDestPickDir),msg=fmDestInvalidMsg(dest),label=fmDestAction==='mv'?'移动到':'复制到';el.innerHTML=label+'：<strong>'+escapeHtml(fmFmtDir(dest))+'</strong>'+(msg?'<span class="err">'+escapeHtml(msg)+'</span>':'');if(ok)ok.disabled=!!msg;}
function fmDestClose(){var o=document.getElementById('fmDestOverlay');if(o)o.classList.remove('open');fmDestAction='';}
function fmDestLoad(dir){dir=dir||'.';fmDestPickDir=dir;var cur=document.getElementById('fmDestCur'),up=document.getElementById('fmDestUp'),rootBtn=document.getElementById('fmDestRoot'),list=document.getElementById('fmDestList');if(cur){cur.textContent=fmFmtDir(dir);cur.title=dir;}fmDestUpdate();if(list)list.innerHTML='<div class="fm-dest-empty">加载中...</div>';var fd=new FormData();fd.append('a','ls');fd.append('dir',dir);fetch('',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.json();}).then(function(d){if(!d.s){if(list)list.innerHTML='<div class="fm-dest-empty">加载失败</div>';return;}fmDestParent=d.parent!=null?d.parent:(dir!=='.'?'.':null);if(up)up.disabled=dir==='.';if(rootBtn)rootBtn.disabled=dir==='.';var dirs=(d.items||[]).filter(function(it){return it.d;});if(!list)return;if(!dirs.length){var hint=fmDestAction==='mv'?'确认移动':'确认复制';list.innerHTML='<div class="fm-dest-empty">当前目录下没有子文件夹<br><span style="font-size:12px">可点击「'+hint+'」到当前目录</span></div>';return;}var h='';dirs.forEach(function(it){var p=String(it.p).replace(/\\/g,'/'),bad=fmDestRowInvalid(p);h+='<div class="fm-dest-item'+(bad?' disabled':'')+'" data-path="'+fmAttr(p)+'"><span>📁</span><span>'+escapeHtml(it.n)+'</span></div>';});list.innerHTML=h;}).catch(function(){if(list)list.innerHTML='<div class="fm-dest-empty">加载失败</div>';});}
function fmDestUp(){if(fmDestPickDir==='.')return;fmDestLoad(fmDestParent||'.');}
function fmDestGoRoot(){if(fmDestPickDir==='.')return;fmDestLoad('.');}
function fmDestOpen(action){var ns=getSelNames();if(!ns.length)return showMsg('请先选择要'+(action==='mv'?'移动':'复制')+'的项目','w');currentNames=ns;fmDestAction=action;fmDestPickDir=fmNormPath(currentDir);var head=document.getElementById('fmDestHead'),info=document.getElementById('fmDestInfo'),ok=document.getElementById('fmDestOk'),o=document.getElementById('fmDestOverlay');if(head)head.textContent=action==='mv'?'选择移动目标':'选择复制目标';if(info)info.innerHTML='已选 <em>'+ns.length+'</em> 项，点击进入子文件夹，选好后点击「'+(action==='mv'?'确认移动':'确认复制')+'」';if(ok)ok.textContent=action==='mv'?'确认移动':'确认复制';if(o)o.classList.add('open');fmDestLoad(fmDestPickDir);}
function fmDestConfirm(){if(!fmDestAction||!currentNames.length)return;var destDir=fmNormPath(fmDestPickDir),msg=fmDestInvalidMsg(destDir);if(msg)return showMsg(msg,'w');var fd=new FormData();fd.append('a',fmDestAction);fd.append('dir',currentDir);fd.append('d',destDir);currentNames.forEach(function(n){fd.append('n[]',n);});var btn=document.getElementById('fmDestOk');if(btn){btn.disabled=true;btn.textContent='处理中…';}fetch('',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.json();}).then(function(d){if(btn){btn.disabled=false;btn.textContent=fmDestAction==='mv'?'确认移动':'确认复制';}showMsg(d.msg||'完成',d.s?'s':'e');if(d.s){fmDestClose();loadDirectory(fmDestAction==='mv'?destDir:currentDir);}}).catch(function(){if(btn){btn.disabled=false;btn.textContent=fmDestAction==='mv'?'确认移动':'确认复制';}showMsg((fmDestAction==='mv'?'移动':'复制')+'失败','e');});}
function ocp_sel(){fmDestOpen('cp');}
function omv_sel(){fmDestOpen('mv');}
function getSelNames(){return Array.from(document.querySelectorAll('input[name="sn"]:checked')).map(function(e){return e.value;});}
function ochmod_sel(){var ns=getSelNames();if(!ns.length)return showMsg('请先选择要修改权限的文件或文件夹','w');currentNames=ns;ochmodOpen();}
function ochmodOpen(){var mo=document.getElementById('mo'),mt=document.getElementById('mt'),mb=document.getElementById('mb'),ms=document.getElementById('ms'),modal=mo?mo.querySelector('.modal'):null;if(!mo||!mb)return;currentAction='chmod';if(modal)modal.classList.add('chmod-wide');mt.textContent='修改权限';mb.innerHTML='<div class="chmod-hint">正在读取当前权限…</div>';ms.style.display='inline-flex';ms.textContent='应用';ms.onclick=chmodApply;mo.classList.add('active');chmodLoadStat();}
function chmodPreset(v){var inp=document.getElementById('chmodMode');if(inp)inp.value=v;}
function chmodRender(items){var mb=document.getElementById('mb');if(!mb)return;var h='<p class="chmod-hint">已选 '+items.length+' 项。下方为当前权限，修改后点击「应用」。</p><div class="chmod-list">';var octs={},hasDir=false;items.forEach(function(it){if(it.d)hasDir=true;var o=it.oct||'-';octs[o]=(octs[o]||0)+1;h+='<div class="chmod-row"><div class="chmod-name">'+escapeHtml(it.n)+(it.d?' <span class="tag">文件夹</span>':' <span class="tag">文件</span>')+'</div><span class="chmod-val">'+escapeHtml(o)+'</span><span class="chmod-val">'+escapeHtml(it.sym||'')+'</span></div>';});h+='</div><div class="form-group"><label>新权限</label><input type="text" id="chmodMode" placeholder="如 755、0644 或 rwxr-xr-x" autocomplete="off"></div><div class="chmod-presets"><button type="button" onclick="chmodPreset(\'755\')">755</button><button type="button" onclick="chmodPreset(\'644\')">644</button><button type="button" onclick="chmodPreset(\'775\')">775</button><button type="button" onclick="chmodPreset(\'600\')">600</button><button type="button" onclick="chmodPreset(\'rwxr-xr-x\')">rwxr-xr-x</button></div>';if(hasDir)h+='<label class="chmod-rec"><input type="checkbox" id="chmodRecursive"> 递归修改文件夹内所有内容</label>';mb.innerHTML=h;var keys=Object.keys(octs);if(keys.length===1){var inp=document.getElementById('chmodMode');if(inp)inp.value=keys[0];}}
function chmodLoadStat(){var fd=new FormData();fd.append('a','chmod');fd.append('dir',currentDir);currentNames.forEach(function(n){fd.append('n[]',n);});fetch('',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.json();}).then(function(d){if(!d.s||!d.items||!d.items.length){showMsg(d.msg||'读取权限失败','e');document.getElementById('mo').classList.remove('active');return;}chmodRender(d.items);}).catch(function(){showMsg('读取权限失败','e');document.getElementById('mo').classList.remove('active');});}
function chmodApply(){var modeEl=document.getElementById('chmodMode'),mode=modeEl?modeEl.value.trim():'';if(!mode)return showMsg('请输入新权限','w');var recEl=document.getElementById('chmodRecursive'),fd=new FormData();fd.append('a','chmod');fd.append('dir',currentDir);fd.append('mode',mode);if(recEl&&recEl.checked)fd.append('recursive','1');currentNames.forEach(function(n){fd.append('n[]',n);});var btn=document.getElementById('ms');if(btn){btn.disabled=true;btn.textContent='应用中…';}fetch('',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.json();}).then(function(d){if(btn){btn.disabled=false;btn.textContent='应用';}showMsg(d.msg||'完成',d.s?'s':'e');if(d.s){document.getElementById('mo').classList.remove('active');loadDirectory(currentDir);}}).catch(function(){if(btn){btn.disabled=false;btn.textContent='应用';}showMsg('修改权限失败','e');});}
async function dlurl(){
    var u=document.getElementById('dlurl').value.trim();
    if(u){
        document.getElementById('mo').classList.remove('active');
        var t=showToast('准备下载: '+u,0);
        
        // Progress poller
        var pd=false;
        var p_iv=setInterval(async function(){
            if(pd) { clearInterval(p_iv); return; }
            try {
                var pr = await fetch('?a=progress');
                var pi = await pr.json();
                if(pi.s){
                    var sz = fs(pi.downloaded) + (pi.total > 0 ? ' / ' + fs(pi.total) : '');
                    var sp = fs(pi.speed) + '/s';
                    t.innerHTML = '下载中: ' + pi.pct + '%<br><span style="font-size:12px">'+sz+'</span> <span style="font-size:12px;opacity:0.8">('+sp+')</span><br><progress value="'+pi.pct+'" max="100"></progress>';
                }
            } catch(e){}
        }, 1000);

        var fd=new FormData();
        fd.append('a','dlurl');
        fd.append('dir',currentDir);
        fd.append('u',u);
        
        try{
            var r=await fetch('',{method:'POST',body:fd});
            var d=await r.json();
            pd=true;
            clearInterval(p_iv);
            t.innerHTML=d.msg+'<br><progress value="100" max="100"></progress>';
            setTimeout(function(){t.remove();},1500);
            if(d.s)loadDirectory(currentDir);
        }catch(x){
            pd=true;
            clearInterval(p_iv);
            showMsg('下载请求失败','e');
            t.remove();
        }
    }
}
function cpw(){var oldp=document.getElementById('cpwOld').value;var newp=document.getElementById('cpwNew').value;var confirmp=document.getElementById('cpwConfirm').value;if(newp!==confirmp)return alert('两次输入的密码不一致');if(newp.length<1)return alert('新密码不能为空');var fd=new FormData();fd.append('a','cpw');fd.append('old',oldp);fd.append('new',newp);fetch('',{method:'POST',body:fd}).then(function(r){return r.json();}).then(function(d){if(d.s){alert('密码修改成功');document.getElementById('cpwmo').classList.remove('active');}else{alert(d.msg);}});}
function pv(p,e){var pt=p.toLowerCase();if(pt.match(/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/)){document.getElementById('pvcc').innerHTML='<img src="'+p+'" style="max-width:80vw;max-height:80vh">';document.getElementById('pvmo').classList.add('active');}else if(pt.match(/\.(mp4|webm|ogg|mov|avi|mkv|flv|wmv|m4v)$/)){document.getElementById('pvcc').innerHTML='<video src="'+p+'" controls style="max-width:80vw;max-height:80vh"></video>';document.getElementById('pvmo').classList.add('active');}else{}}
function qnApi(data){var fd=new FormData();Object.keys(data).forEach(function(k){fd.append(k,data[k]);});return fetch('',{method:'POST',body:fd,credentials:'same-origin',cache:'no-store'}).then(function(r){return r.json();});}
function qnApplyItems(d){if(d&&d.s&&Array.isArray(d.items)){quickNav=d.items;return true;}return false;}
var qnLoadSeq=0;
function qnLoad(){var seq=++qnLoadSeq;return qnApi({a:'qnls',_t:Date.now()}).then(function(d){if(seq!==qnLoadSeq)return quickNav;if(qnApplyItems(d))return quickNav;return quickNav;}).catch(function(){return quickNav;});}
function qnShowMenuLoading(){var m=document.getElementById('qnMenu');if(m)m.innerHTML='<div class="qn-empty">加载中...</div>';}
function qnAttr(s){return String(s).replace(/&/g,'&amp;').replace(/"/g,'&quot;').replace(/</g,'&lt;');}
function qnResolvePathFl(p){p=String(p).replace(/\\/g,'/').trim();if(!p)return'';if(p.indexOf('/')>=0||p.indexOf('..')===0)return p.replace(/\/+/g,'/');var d=typeof currentDir!=='undefined'?currentDir:'';if(!d||d==='.')return p;return (d+'/'+p).replace(/\/+/g,'/');}
function toggleQn(e){e.stopPropagation();var w=document.getElementById('qnWrap');if(!w)return;if(w.classList.contains('open')){w.classList.remove('open');var m=document.getElementById('qnMenu');if(m)m.style.top='';return;}w.classList.add('open');qnShowMenuLoading();qnLoad().then(function(){renderQnMenu();var m=document.getElementById('qnMenu');if(m&&window.innerWidth<=768){var b=w.querySelector('.qn-btn');if(b){var r=b.getBoundingClientRect();m.style.top=(r.bottom+6)+'px';}}});}
function qnEditUrl(p){var d=String(p).replace(/\\/g,'/');var i=d.lastIndexOf('/');return'?edit='+encodeURIComponent(p)+'&dir='+encodeURIComponent(i>0?d.substring(0,i):'.');}
var qnMenuBoundFl=false;
function qnBindMenuFl(){if(qnMenuBoundFl)return;var m=document.getElementById('qnMenu');if(!m)return;qnMenuBoundFl=true;m.addEventListener('click',function(e){var rm=e.target.closest('.qn-rm');if(rm){e.preventDefault();e.stopPropagation();qnRemove(rm.getAttribute('data-idx'),e,rm.getAttribute('data-path'));return;}if(e.target.closest('[data-qn-act="addmanual"]')){qnAddManual(e);return;}});}
function renderQnMenu(){var m=document.getElementById('qnMenu');if(!m)return;qnBindMenuFl();var hint=currentDir&&currentDir!=='.'?'路径相对当前目录，如 nx.php':'文件路径，如 nx.php';var h='';if(!quickNav.length)h+='<div class="qn-empty">暂无导航，可在下方添加</div>';quickNav.forEach(function(it,i){var p=String(it.p).replace(/\\/g,'/');h+='<a class="qn-item" href="'+qnEditUrl(p)+'"><span>'+escapeHtml(it.l)+'</span><button type="button" class="qn-rm" data-idx="'+i+'" data-path="'+qnAttr(p)+'" title="移除">×</button></a>';});h+='<div class="qn-sep"></div><div class="qn-form"><input id="qnLabel" placeholder="显示名称"><input id="qnPath" placeholder="'+qnAttr(hint)+'"><button type="button" data-qn-act="addmanual">添加导航</button></div>';m.innerHTML=h;}
function qnRemove(i,e,path){e.preventDefault();e.stopPropagation();var data={a:'qndel'};if(path)data.p=path;else if(i!==null&&i!==''&&!isNaN(parseInt(i,10)))data.i=String(i);else return showMsg('无法移除','e');qnApi(data).then(function(d){if(d.s){if(!qnApplyItems(d))return qnLoad().then(function(){var w=document.getElementById('qnWrap');if(w&&w.classList.contains('open'))renderQnMenu();});var w=document.getElementById('qnWrap');if(w&&w.classList.contains('open'))renderQnMenu();showMsg('已移除','s');}else showMsg(d.msg||'移除失败','e');});}
function qnAddManual(e){e.stopPropagation();var l=document.getElementById('qnLabel'),p=document.getElementById('qnPath');if(!l||!p||!l.value.trim()||!p.value.trim())return showMsg('请填写名称和路径','w');var path=qnResolvePathFl(p.value.trim());qnApi({a:'qnadd',l:l.value.trim(),p:path}).then(function(d){if(d.s){if(!qnApplyItems(d))return qnLoad().then(renderQnMenu);renderQnMenu();l.value='';p.value='';showMsg('已添加','s');}else showMsg(d.msg||'添加失败','e');});}
document.addEventListener('click',function(e){var w=document.getElementById('qnWrap'),m=document.getElementById('qnMenu');if(w&&w.classList.contains('open')&&!w.contains(e.target)&&!(m&&m.contains(e.target)))w.classList.remove('open');});
document.getElementById('qnWrap').addEventListener('click',function(e){e.stopPropagation();});
document.addEventListener('visibilitychange',function(){if(document.visibilityState==='visible')qnLoad();});
qnLoad();
(function(){var list=document.getElementById('fmDestList');if(list&&!list._fmBound){list._fmBound=1;list.addEventListener('click',function(e){var el=e.target.closest('.fm-dest-item');if(!el||el.classList.contains('disabled'))return;var p=el.getAttribute('data-path');if(p)fmDestLoad(p);});}if(!document._fmDestKey){document._fmDestKey=1;document.addEventListener('keydown',function(e){if(e.key==='Escape'){var uo=document.getElementById('upConflictOverlay');if(uo&&uo.classList.contains('open'))uploadConflictPick('cancel');else{var zo=document.getElementById('zipOverlay');if(zo&&zo.classList.contains('open'))zipClose();else{var o=document.getElementById('fmDestOverlay');if(o&&o.classList.contains('open'))fmDestClose();}}}});}})();
loadDirectory(currentDir);
</script>
</body>
</html>