:root{
  --wall-1:#202a44; --wall-2:#33406b; --wall-3:#5b6aa0;
  --accent:#f3b14e; --accent-press:#dd9b39; --link:#5b8def; --danger:#e2674f;
  --surface:#fff; --surface-2:#f3f4f8; --surface-3:#e7e9f1;
  --ink:#1c2236; --ink-2:#5b6178; --ink-3:#9097ac; --hair:#e2e4ee;
  --folder:#f4c361; --folder-edge:#e0a93f; --radius:14px;
  --shadow-win:0 24px 60px -18px rgba(15,20,40,.55),0 4px 14px rgba(15,20,40,.18);
  --shadow-pop:0 14px 36px -10px rgba(15,20,40,.4);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{height:100%;margin:0;}
body{font-family:var(--font);color:var(--ink);overflow:hidden;
  background:radial-gradient(120% 120% at 18% 8%,var(--wall-3) 0%,var(--wall-2) 38%,var(--wall-1) 100%);
  -webkit-user-select:none;user-select:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:14px;}
input{font-family:inherit;}

/* 锁屏 */
#lock{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 120% at 50% 0%,var(--wall-3) 0%,var(--wall-2) 42%,var(--wall-1) 100%);
  transition:opacity .45s ease,transform .45s ease;}
#lock.hide{opacity:0;transform:scale(1.04);pointer-events:none;}
.lock-card{width:min(92vw,360px);background:rgba(255,255,255,.08);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.16);border-radius:24px;padding:38px 30px 30px;text-align:center;box-shadow:0 30px 80px -20px rgba(0,0,0,.6);}
.lock-badge{width:74px;height:74px;margin:0 auto 18px;border-radius:20px;background:linear-gradient(160deg,var(--accent),var(--accent-press));
  display:flex;align-items:center;justify-content:center;box-shadow:0 12px 28px -8px rgba(243,177,78,.7);}
.lock-badge svg{width:40px;height:40px;}
.lock-card h1{color:#fff;font-size:21px;margin:0 0 4px;font-weight:650;letter-spacing:.5px;}
.lock-card p{color:rgba(255,255,255,.6);font-size:13px;margin:0 0 24px;}
.pw-row{margin-bottom:14px;}
.pw-row input{width:100%;padding:14px 16px;border-radius:13px;font-size:15px;background:rgba(255,255,255,.1);
  border:1.5px solid rgba(255,255,255,.18);color:#fff;outline:none;text-align:center;letter-spacing:2px;}
.pw-row input::placeholder{color:rgba(255,255,255,.4);letter-spacing:1px;}
.pw-row input:focus{border-color:var(--accent);background:rgba(255,255,255,.16);}
.lock-btn{width:100%;padding:14px;border-radius:13px;font-weight:600;font-size:15px;color:#3a2a08;
  background:linear-gradient(160deg,var(--accent),var(--accent-press));box-shadow:0 10px 22px -8px rgba(243,177,78,.6);transition:transform .12s,filter .12s;}
.lock-btn:active{transform:translateY(1px);filter:brightness(.96);}
.lock-err{color:#ffd2c6;font-size:12.5px;height:16px;margin-top:10px;}
.lock-hint{color:rgba(255,255,255,.38);font-size:11.5px;margin-top:18px;line-height:1.5;}

/* 顶栏 */
#app{position:fixed;inset:0;display:flex;flex-direction:column;}
.topbar{height:42px;flex:none;display:flex;align-items:center;gap:14px;padding:0 14px;
  background:rgba(20,26,44,.55);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  color:rgba(255,255,255,.92);border-bottom:1px solid rgba(255,255,255,.08);font-size:13px;z-index:20;}
.topbar .brand{font-weight:650;letter-spacing:.5px;display:flex;align-items:center;gap:8px;}
.topbar .brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent);}
.topbar .spacer{flex:1;}
.topbar .clock{font-variant-numeric:tabular-nums;opacity:.8;letter-spacing:.5px;}
.topbar .tbtn{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;opacity:.85;transition:.15s;}
.topbar .tbtn:hover{background:rgba(255,255,255,.12);opacity:1;}
.topbar .tbtn svg{width:17px;height:17px;}

/* 工具栏 */
.toolbar{flex:none;display:flex;align-items:center;gap:10px;padding:12px 18px 10px;color:rgba(255,255,255,.92);}
.crumbs{display:flex;align-items:center;gap:2px;font-size:14px;flex:1;min-width:0;overflow:hidden;}
.crumb{padding:5px 10px;border-radius:8px;white-space:nowrap;max-width:180px;overflow:hidden;text-overflow:ellipsis;transition:background .15s;}
.crumb.link{cursor:pointer;}.crumb.link:hover{background:rgba(255,255,255,.14);}
.crumb.current{font-weight:600;background:rgba(255,255,255,.12);}
.crumb-sep{opacity:.4;padding:0 1px;}
.tool-actions{display:flex;gap:9px;flex:none;}
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 15px;border-radius:11px;font-weight:560;font-size:13.5px;transition:transform .12s,filter .12s,background .15s;}
.btn svg{width:16px;height:16px;}.btn:active{transform:translateY(1px);}
.btn-primary{background:linear-gradient(160deg,var(--accent),var(--accent-press));color:#3a2a08;box-shadow:0 8px 18px -8px rgba(243,177,78,.6);}
.btn-primary:hover{filter:brightness(1.03);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;}.btn-ghost:hover{background:rgba(255,255,255,.2);}

/* 桌面画布 */
.canvas{flex:1;position:relative;overflow:auto;padding:8px 18px 90px;}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:6px 4px;align-content:start;}
.icon{border-radius:12px;padding:12px 6px 10px;text-align:center;transition:background .12s;position:relative;}
.icon:hover{background:rgba(255,255,255,.09);}
.icon.selected{background:rgba(91,141,239,.32);outline:1.5px solid rgba(140,180,255,.5);}
.icon .glyph{width:74px;height:64px;margin:0 auto 8px;display:flex;align-items:center;justify-content:center;position:relative;}
.folder-ic{width:72px;height:56px;position:relative;filter:drop-shadow(0 6px 8px rgba(0,0,0,.28));}
.folder-ic .back{position:absolute;inset:6px 0 0;background:var(--folder-edge);border-radius:8px 8px 9px 9px;}
.folder-ic .tab{position:absolute;top:2px;left:6px;width:30px;height:12px;background:var(--folder-edge);border-radius:6px 8px 0 0;}
.folder-ic .front{position:absolute;inset:12px 0 0;background:linear-gradient(170deg,var(--folder) 0%,#f0b94d 100%);border-radius:8px;}
.folder-ic .count{position:absolute;right:-3px;bottom:-3px;min-width:19px;height:19px;padding:0 5px;border-radius:10px;
  background:var(--ink);color:#fff;font-size:11px;font-weight:600;display:flex;align-items:center;justify-content:center;border:2px solid rgba(255,255,255,.85);}
.thumb-ic{width:72px;height:64px;border-radius:9px;overflow:hidden;background:#cfd3e2;box-shadow:0 6px 10px rgba(0,0,0,.3);position:relative;display:flex;align-items:center;justify-content:center;}
.thumb-ic img{width:100%;height:100%;object-fit:cover;display:block;}
.thumb-ic .link-tag{position:absolute;top:3px;right:3px;width:16px;height:16px;border-radius:5px;background:rgba(91,141,239,.95);display:flex;align-items:center;justify-content:center;}
.thumb-ic .link-tag svg{width:10px;height:10px;color:#fff;}
.icon .label{font-size:12px;color:#fff;line-height:1.3;max-height:32px;overflow:hidden;text-shadow:0 1px 3px rgba(0,0,0,.5);
  word-break:break-all;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}

.empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:rgba(255,255,255,.5);text-align:center;pointer-events:none;padding:20px;}
.empty svg{width:54px;height:54px;margin-bottom:14px;opacity:.6;}
.empty h3{margin:0 0 6px;font-weight:600;font-size:16px;color:rgba(255,255,255,.7);}
.empty p{margin:0;font-size:13px;line-height:1.6;}

.statusbar{position:absolute;left:0;right:0;bottom:0;height:30px;display:flex;align-items:center;gap:14px;padding:0 18px;
  font-size:11.5px;color:rgba(255,255,255,.55);background:linear-gradient(0deg,rgba(20,26,44,.45),transparent);}

.canvas.dragging::after{content:"松手即可上传到当前文件夹";position:absolute;inset:16px;border:2.5px dashed rgba(243,177,78,.8);
  border-radius:20px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:600;background:rgba(243,177,78,.12);pointer-events:none;z-index:5;}

/* 弹窗 */
.overlay{position:fixed;inset:0;z-index:60;display:none;align-items:center;justify-content:center;background:rgba(12,16,30,.5);
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);padding:18px;}
.overlay.show{display:flex;}
.modal{width:min(94vw,520px);max-height:88vh;overflow:auto;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-win);animation:pop .22s cubic-bezier(.2,.8,.3,1);}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98);}to{opacity:1;transform:none;}}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--hair);}
.modal-head h2{margin:0;font-size:16px;font-weight:650;}
.modal-head #uploadDest,.modal-head span{color:var(--accent);}
.x{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;color:var(--ink-2);}
.x:hover{background:var(--surface-2);}.x svg{width:16px;height:16px;}
.modal-body{padding:18px;}

.tabs{display:flex;gap:6px;background:var(--surface-2);padding:4px;border-radius:11px;margin-bottom:16px;}
.tab{flex:1;padding:9px;border-radius:8px;font-size:13.5px;font-weight:560;color:var(--ink-2);text-align:center;transition:.15s;}
.tab.active{background:var(--surface);color:var(--ink);box-shadow:0 1px 4px rgba(0,0,0,.08);}
.pane{display:none;}.pane.active{display:block;}

.drop{border:2px dashed var(--hair);border-radius:13px;padding:30px 16px;text-align:center;color:var(--ink-2);transition:.15s;cursor:pointer;}
.drop:hover,.drop.over{border-color:var(--accent);background:#fdf6e9;color:var(--ink);}
.drop svg{width:38px;height:38px;color:var(--ink-3);margin-bottom:10px;}
.drop strong{color:var(--ink);}.drop small{display:block;margin-top:6px;color:var(--ink-3);font-size:12px;}

.field label{display:block;font-size:13px;font-weight:560;margin-bottom:7px;color:var(--ink-2);}
.field input[type=text],.field input[type=password]{width:100%;padding:12px 13px;border-radius:11px;border:1.5px solid var(--hair);font-size:14px;outline:none;color:var(--ink);background:var(--surface-2);}
.field input:focus{border-color:var(--accent);background:#fff;}
.field+.field{margin-top:14px;}
.hint{font-size:12px;color:var(--ink-3);margin-top:8px;line-height:1.5;}

.queue{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.qitem{display:flex;align-items:center;gap:10px;font-size:13px;padding:8px 10px;border-radius:10px;background:var(--surface-2);}
.qitem .qth{width:34px;height:34px;border-radius:7px;object-fit:cover;flex:none;background:var(--surface-3);}
.qitem .qname{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.qitem .qstat{font-size:11.5px;flex:none;}
.qstat.ok{color:#2e9e5b;}.qstat.err{color:var(--danger);}.qstat.go{color:var(--link);}

/* 大图 */
#lightbox{position:fixed;inset:0;z-index:80;display:none;flex-direction:column;background:rgba(10,12,22,.92);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);}
#lightbox.show{display:flex;}
.lb-top{display:flex;align-items:center;gap:12px;padding:14px 18px;color:#fff;}
.lb-title{flex:1;font-size:15px;font-weight:560;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.lb-meta{font-size:12px;color:rgba(255,255,255,.55);flex:none;}
.lb-stage{flex:1;display:flex;align-items:center;justify-content:center;padding:0 18px;overflow:hidden;}
.lb-stage img{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.6);}
.lb-url{margin:6px auto 0;max-width:min(90vw,640px);font-size:12px;color:rgba(255,255,255,.6);text-align:center;
  word-break:break-all;background:rgba(255,255,255,.07);padding:8px 12px;border-radius:9px;-webkit-user-select:all;user-select:all;}
.lb-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:16px 18px 22px;}
.lb-btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:12px;font-weight:560;font-size:14px;background:rgba(255,255,255,.12);color:#fff;transition:.15s;}
.lb-btn:hover{background:rgba(255,255,255,.22);}
.lb-btn.primary{background:linear-gradient(160deg,var(--accent),var(--accent-press));color:#3a2a08;}
.lb-btn.danger:hover{background:var(--danger);}
.lb-btn svg{width:17px;height:17px;}
.lb-close{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.1);color:#fff;flex:none;}
.lb-close:hover{background:rgba(255,255,255,.2);}.lb-close svg{width:18px;height:18px;}

/* 右键菜单 */
#ctx{position:fixed;z-index:90;background:var(--surface);border-radius:11px;box-shadow:var(--shadow-pop);padding:6px;min-width:172px;display:none;border:1px solid var(--hair);max-height:70vh;overflow:auto;}
#ctx.show{display:block;}
.ci{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:8px;font-size:13.5px;color:var(--ink);width:100%;text-align:left;}
.ci:hover{background:var(--surface-2);}
.ci.danger{color:var(--danger);}.ci.danger:hover{background:#fdece8;}
.ci svg{width:15px;height:15px;flex:none;color:var(--ink-2);}.ci.danger svg{color:var(--danger);}
.ci-sep{height:1px;background:var(--hair);margin:5px 6px;}
.ci-sub{padding:6px 11px 2px;font-size:11px;color:var(--ink-3);font-weight:600;text-transform:uppercase;letter-spacing:.4px;}

/* toast */
#toast{position:fixed;bottom:46px;left:50%;transform:translateX(-50%) translateY(20px);z-index:120;background:var(--ink);color:#fff;
  padding:11px 18px;border-radius:12px;font-size:13.5px;box-shadow:var(--shadow-pop);opacity:0;transition:.25s;pointer-events:none;display:flex;align-items:center;gap:8px;max-width:88vw;}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
#toast svg{width:16px;height:16px;color:var(--accent);flex:none;}

.canvas::-webkit-scrollbar,.modal::-webkit-scrollbar{width:9px;}
.canvas::-webkit-scrollbar-thumb{background:rgba(255,255,255,.2);border-radius:5px;}
.modal::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:5px;}

@media (max-width:560px){
  .toolbar{flex-wrap:wrap;gap:8px;}
  .crumbs{order:2;width:100%;}
  .tool-actions{order:1;margin-left:auto;}
  .grid{grid-template-columns:repeat(auto-fill,minmax(92px,1fr));}
  .btn span.txt{display:none;}.btn{padding:9px 12px;}
}