:root{
  --bd:#dcdcdc; --bd2:#eee; --bg:#fff; --bg2:#fafafa;
  --tx:#222; --tx2:#666; --tx3:#999; --blue:#0b57d0;
  --tabh:52px; --toph:50px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--tx); background:#f2f2f2; -webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none}
button{font-family:inherit}
input,select{font-family:inherit}

/* ============ 登录页 ============ */
.login-page{background:#f2f2f2;display:flex;align-items:center;justify-content:center;min-height:100%}
.login-wrap{width:100%;max-width:820px;padding:20px}
.login-box{display:flex;background:#fff;border:1px solid var(--bd);border-radius:4px;overflow:hidden}
.login-left{width:46%;background:var(--bg2);border-right:1px solid var(--bd2);padding:32px 28px}
.brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600}
.brand-ic{font-size:16px}
.tree-demo{
  font-family:ui-monospace,Consolas,"Courier New",monospace;font-size:11.5px;line-height:2;
  color:#555;white-space:pre;margin:18px 0 16px;overflow-x:auto;
}
.login-note{font-size:11.5px;color:var(--tx2);line-height:1.8}
.login-right{flex:1;padding:32px}
.login-right h1{font-size:18px;font-weight:600}
.login-right .sub{font-size:12px;color:var(--tx2);margin:4px 0 20px}

.lbl{display:block;font-size:12px;color:#555;margin:0 0 5px}
.inp{
  width:100%;border:1px solid #ccc;border-radius:3px;padding:9px 10px;font-size:13.5px;
  background:#fff;color:var(--tx);outline:none;margin-bottom:14px;
}
.inp:focus{border-color:#888}
.btn{
  display:block;width:100%;border:1px solid #222;background:#222;color:#fff;border-radius:3px;
  padding:10px;font-size:13.5px;cursor:pointer;
}
.btn:hover{background:#000}
.btn:disabled{opacity:.5;cursor:default}
.btn.sec{background:#fff;color:#222;border-color:#ccc}
.btn.sec:hover{background:#f7f7f7}
.btn.mini{width:auto;padding:5px 12px;font-size:12.5px}
.box{border:1px solid #e0e0e0;background:var(--bg2);border-radius:3px;padding:10px;font-size:12px;color:#555;line-height:1.7;margin-bottom:14px}
.msg{font-size:12.5px;color:#c62828;margin-top:10px;padding:8px 10px;border:1px solid #f0c8c8;background:#fdf3f3;border-radius:3px}
.msg.ok{color:#1b5e20;border-color:#c8e0c8;background:#f3fbf3}
.reg-row{font-size:12.5px;color:var(--tx2);margin-top:12px;text-align:center}
.foot{font-size:11px;color:var(--tx3);text-align:center;margin-top:22px}

@media (max-width:719px){
  .login-page{align-items:flex-start;background:#fff}
  .login-wrap{padding:0;max-width:none}
  .login-box{display:block;border:none;border-radius:0;min-height:100vh}
  .login-left{width:auto;background:#fff;border-right:none;border-bottom:1px solid var(--bd2);padding:26px 20px 18px}
  .tree-demo{display:none}
  .login-note{font-size:11.5px}
  .login-right{padding:22px 20px 30px}
}

/* ============ 应用外壳 ============ */
.app-page{display:flex;flex-direction:column;height:100%;overflow:hidden;background:#f2f2f2}
.topbar{
  height:var(--toph);flex:0 0 var(--toph);display:flex;align-items:center;gap:12px;
  padding:0 14px;background:#fff;border-bottom:1px solid var(--bd);
}
.top-left{display:flex;align-items:center;gap:8px;font-size:14px;min-width:0}
.top-left b{font-weight:600;white-space:nowrap}
.disk{font-size:11.5px;color:var(--tx3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search{
  width:180px;border:1px solid #ccc;border-radius:3px;padding:6px 9px;font-size:13px;outline:none;background:#fff;
}
.search:focus{border-color:#888}
.user{font-size:12.5px;color:#444;cursor:pointer;white-space:nowrap}
.user:hover{color:#000}

.layout{flex:1;display:flex;min-height:0;background:#fff;max-width:1320px;width:100%;margin:0 auto;border-left:1px solid var(--bd);border-right:1px solid var(--bd)}
.side{width:220px;flex:0 0 220px;border-right:1px solid var(--bd2);background:var(--bg2);overflow-y:auto;padding:10px 0}
.side .item{padding:7px 16px;font-size:13px;color:#333;cursor:pointer;display:flex;align-items:center;gap:6px}
.side .item:hover{background:#f0f0f0}
.side .item.on{background:#fff;box-shadow:inset 3px 0 0 #222;font-weight:600;padding-left:13px}
.side .item .n{margin-left:auto;font-size:11.5px;color:var(--tx3)}
.side .grp{font-size:11px;color:var(--tx3);padding:14px 16px 5px}
.main{flex:1;min-width:0;overflow-y:auto;padding:18px 20px 30px;background:#fff}

.tabbar{display:none}
.toast{
  position:fixed;left:50%;bottom:calc(var(--tabh) + 18px);transform:translateX(-50%);
  background:#222;color:#fff;font-size:12.5px;padding:9px 16px;border-radius:3px;z-index:50;max-width:88vw;
}

/* ============ 内容通用 ============ */
.page-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.page-head h2{font-size:16px;font-weight:600}
.page-head .count{font-size:12px;color:var(--tx2)}
.page-head .sp{margin-left:auto}
.crumb{font-size:12.5px;color:var(--tx2);margin-bottom:10px;cursor:pointer}
.crumb:hover{color:#000}
.statline{font-size:12px;color:var(--tx2);margin-bottom:12px}
.empty{border:1px dashed #ddd;border-radius:3px;padding:32px 16px;text-align:center;color:var(--tx3);font-size:13px;background:var(--bg2)}

/* 文件行：手机卡片 / 桌面表格（JS 按宽度渲染） */
.flist-head{display:none}
.fitem{display:flex;gap:10px;align-items:flex-start;padding:10px 2px;border-bottom:1px solid #f0f0f0}
.fi-ic{
  width:32px;height:32px;flex:0 0 32px;border:1px solid var(--bd);border-radius:3px;background:var(--bg2);
  font-size:9px;color:#777;display:flex;align-items:center;justify-content:center;letter-spacing:.3px;
}
.fi-main{flex:1;min-width:0}
.fi-name{font-size:13px;word-break:break-all}
.fi-meta{font-size:11.5px;color:var(--tx3);margin-top:2px}
.fi-act{font-size:12.5px;white-space:nowrap;padding-top:6px}

@media (min-width:1024px){
  .flist{border-top:1px solid var(--bd2)}
  .flist-head{
    display:grid;grid-template-columns:38px 1fr 120px 80px 80px 84px 108px 168px;
    gap:8px;padding:8px 4px;border-bottom:1px solid var(--bd);font-size:11.5px;color:var(--tx2);background:var(--bg2);
  }
  .fitem{
    display:grid;grid-template-columns:38px 1fr 120px 80px 80px 84px 108px 168px;
    gap:8px;align-items:center;padding:9px 4px;
  }
  .fitem:hover{background:#fafafa}
  .fi-ic{width:26px;height:26px;flex:none;font-size:8.5px}
  .fi-meta{display:none}
  .fi-name{font-size:12.8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;word-break:normal}
  .fi-col{font-size:12px;color:#666;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .fi-act{padding-top:0;text-align:right;display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
}

/* ============ 上传 ============ */
.drop{
  border:1px dashed #ccc;border-radius:3px;background:var(--bg2);padding:28px 16px;text-align:center;margin-bottom:14px;
}
.drop.over{border-color:#222;background:#f0f0f0}
.drop .big{font-size:22px;color:#999;line-height:1}
.drop .t{font-size:13px;margin-top:8px}
.drop .h{font-size:11.5px;color:var(--tx3);margin-top:4px}
.picked{border:1px solid var(--bd2);border-radius:3px;margin-bottom:14px}
.pk{display:flex;gap:10px;padding:9px 12px;border-bottom:1px solid #f2f2f2;font-size:12.5px;align-items:center}
.pk:last-child{border-bottom:none}
.pk .nm{flex:1;min-width:0;word-break:break-all}
.pk .tg{font-size:11.5px;color:#555;white-space:nowrap}
.pk .tg b{font-weight:600;color:#222}
.pk .del{color:#999;cursor:pointer;font-size:12px}
.progress{height:6px;background:#eee;border-radius:2px;overflow:hidden;margin:12px 0;display:none}
.progress.on{display:block}
.progress i{display:block;height:6px;width:0;background:#444;transition:width .15s}
.ptext{font-size:12px;color:var(--tx2);margin-bottom:8px}

/* ============ 表单/卡片 ============ */
.card{border:1px solid var(--bd2);border-radius:3px;padding:14px;margin-bottom:14px}
.card h3{font-size:13.5px;font-weight:600;margin-bottom:10px}
.frow2{display:flex;gap:10px;flex-wrap:wrap}
.frow2 > div{flex:1;min-width:140px}
.tag{display:inline-block;font-size:11px;border:1px solid #ccc;border-radius:2px;padding:1px 5px;color:#555;background:var(--bg2);white-space:nowrap}
.tag.on{border-color:#222;color:#111;background:#fff}
.tag.warn{border-color:#c9a227;color:#7a5f00;background:#fffbe8}
.tag.off{border-color:#ddd;color:#999}

.kv{display:flex;font-size:12.5px;padding:6px 0;border-bottom:1px solid #f4f4f4}
.kv:last-child{border-bottom:none}
.kv .k{width:86px;color:var(--tx2);flex:0 0 86px}
.kv .v{flex:1;min-width:0;word-break:break-all}

.usrow{display:flex;gap:10px;align-items:center;padding:9px 2px;border-bottom:1px solid #f0f0f0;font-size:12.5px;flex-wrap:wrap}
.usrow .who{flex:1;min-width:120px}
.usrow .who b{font-weight:600;font-size:13px}
.usrow .who .sub{display:block;font-size:11.5px;color:var(--tx3)}
.usrow .acts{display:flex;gap:6px;flex-wrap:wrap}
.linkbtn{background:none;border:none;color:var(--blue);font-size:12px;cursor:pointer;padding:0}
.linkbtn.danger{color:#c62828}

.bar{height:6px;background:#eee;border-radius:2px;overflow:hidden;margin:8px 0 4px}
.bar i{display:block;height:6px;background:#555}

.switchrow{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid #f4f4f4;font-size:12.5px}
.switchrow .sp{margin-left:auto}

/* ============ 手机端 ============ */
@media (max-width:1023px){
  .side{display:none}
  .layout{display:block;border:none;max-width:none}
  .main{padding:12px 14px calc(var(--tabh) + 24px);height:100%;overflow-y:auto}
  .search{width:120px;font-size:12.5px}
  .disk{display:none}
  .tabbar{
    display:flex;height:var(--tabh);flex:0 0 var(--tabh);background:#fff;border-top:1px solid var(--bd);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tabbar .tb{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;
    font-size:11px;color:#888;cursor:pointer;
  }
  .tabbar .tb.on{color:#111;font-weight:600}
  .tabbar .tb .ic{font-size:15px;line-height:1}
  .toast{bottom:calc(var(--tabh) + 14px)}
}

/* ============ 项目列表（手机） ============ */
.plist{border-top:1px solid #f0f0f0}
.pitem{display:flex;gap:10px;align-items:center;padding:11px 2px;border-bottom:1px solid #f0f0f0;cursor:pointer}
.pitem:hover{background:#fafafa}
.pi-ic{width:32px;height:32px;flex:0 0 32px;border:1px solid var(--bd);border-radius:3px;background:var(--bg2);display:flex;align-items:center;justify-content:center;font-size:13px;color:#888}
.pi-main{flex:1;min-width:0}
.pi-name{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pi-meta{font-size:11.5px;color:var(--tx3);margin-top:2px}
.pi-n{font-size:11.5px;color:var(--tx3);white-space:nowrap}

/* ============ 头像 ============ */
.avatar{
  width:42px;height:42px;flex:0 0 42px;border:1px solid var(--bd);border-radius:50%;background:#f5f5f5;
  display:flex;align-items:center;justify-content:center;font-size:15px;color:#555;
}

/* ============ 操作弹层 ============ */
.sheet-mask{position:fixed;inset:0;background:rgba(0,0,0,.28);z-index:100;display:flex;align-items:flex-end;justify-content:center}
.sheet{
  width:100%;max-width:460px;background:#fff;border:1px solid var(--bd);border-bottom:none;
  border-radius:4px 4px 0 0;padding:12px 14px calc(12px + env(safe-area-inset-bottom));
  max-height:80vh;overflow-y:auto;
}
.sh-title{font-size:12.5px;color:var(--tx3);padding:4px 2px 10px;word-break:break-all;border-bottom:1px solid var(--bd2);margin-bottom:6px}
.sh-body{display:flex;flex-direction:column}
.sh-item{
  display:block;width:100%;text-align:left;background:none;border:none;border-bottom:1px solid #f4f4f4;
  padding:12px 4px;font-size:13.5px;color:#222;cursor:pointer;
}
.sh-item:hover{background:#fafafa}
.sh-item.danger{color:#c62828}
.sh-cancel{
  margin-top:10px;text-align:center;font-size:13px;color:var(--tx2);padding:10px;border:1px solid var(--bd);
  border-radius:3px;cursor:pointer;background:#fafafa;
}
@media (min-width:720px){
  .sheet-mask{align-items:center}
  .sheet{border-radius:4px;border-bottom:1px solid var(--bd);padding-bottom:12px}
}

/* ============ 文件操作按钮 ============ */
.fbtn{
  display:inline-block;font-size:12px;line-height:1;padding:5px 9px;border:1px solid #ccc;border-radius:3px;
  background:#fff;color:#333;cursor:pointer;white-space:nowrap;
}
.fbtn:hover{background:#f5f5f5}
.fbtn.dl{color:var(--blue);border-color:#bcd0f0}
.fbtn.danger{color:#c62828;border-color:#e6b8b8}
@media (max-width:1023px){
  .fi-act{justify-content:flex-start;padding-top:6px}
}

/* ============ 二次确认弹窗 ============ */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.32);z-index:120;display:flex;align-items:center;justify-content:center;padding:18px}
.modal{width:100%;max-width:420px;background:#fff;border:1px solid var(--bd);border-radius:5px;padding:18px}
.modal-title{font-size:15px;font-weight:600;margin-bottom:12px}
.modal-body{font-size:13px;color:#333;line-height:1.7}
.modal-body .inp{margin-bottom:10px}
.del-file{border:1px solid var(--bd2);background:var(--bg2);border-radius:3px;padding:9px 11px;font-size:12.5px;color:#333;word-break:break-all;margin:8px 0 12px}
.chk{display:flex;align-items:center;gap:8px;font-size:13px;color:#444;cursor:pointer;margin:4px 0}
.chk input{width:15px;height:15px}
.modal-actions{display:flex;gap:10px;margin-top:16px}
.modal-actions .btn{flex:1}