:root{
  --bg:#0f172a; --panel:#111c33; --panel2:#0b1424; --text:#e6edf7; --muted:#8ea3c2;
  --accent:#3b82f6; --danger:#ef4444; --line:#1e2c47;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Segoe UI",Roboto,sans-serif;
  font-size:15px;overscroll-behavior:contain}
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;
  padding:calc(10px + env(safe-area-inset-top)) 14px 10px;background:rgba(15,23,42,.94);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.title{font-weight:700;font-size:18px;letter-spacing:.5px}
.title .sub{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.actions button{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:10px;
  width:38px;height:38px;font-size:18px;margin-left:8px}
.crumb{display:flex;flex-wrap:wrap;gap:4px;padding:8px 14px 2px;color:var(--muted);font-size:13px}
.crumb a{color:var(--muted);text-decoration:none;padding:2px 4px;border-radius:6px}
.crumb a.cur{color:var(--text);background:var(--panel)}
.toolbar{display:flex;gap:8px;padding:8px 12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--panel);
  color:var(--text);border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-size:14px;
  min-height:42px;flex:1 1 auto;user-select:none}
.btn:active{opacity:.75}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn.danger{color:#fff;background:var(--danger);border-color:var(--danger)}
.list{padding:4px 10px calc(80px + env(safe-area-inset-bottom))}
.row{display:flex;align-items:center;gap:12px;padding:12px 10px;border-radius:14px;background:var(--panel);
  margin:6px 0;border:1px solid var(--line)}
.row:active{background:var(--panel2)}
.row .ico{font-size:22px;width:28px;text-align:center}
.row .meta{flex:1;min-width:0}
.row .name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:15px}
.row .info{color:var(--muted);font-size:12px;margin-top:3px}
.row .more{background:none;border:none;color:var(--muted);font-size:20px;padding:6px 8px}
.empty{text-align:center;color:var(--muted);padding:60px 16px;line-height:1.8}
.status{position:fixed;left:0;right:0;bottom:0;padding:8px 14px calc(8px + env(safe-area-inset-bottom));
  background:rgba(11,20,36,.92);border-top:1px solid var(--line);color:var(--muted);font-size:12px;
  display:flex;justify-content:space-between;gap:10px}
.toast{position:fixed;left:50%;bottom:80px;transform:translateX(-50%) translateY(20px);opacity:0;
  background:#1f2f4d;color:#fff;padding:10px 16px;border-radius:999px;font-size:13px;transition:.25s;
  pointer-events:none;max-width:90vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
dialog{border:none;border-radius:18px;background:var(--panel);color:var(--text);padding:0;width:min(92vw,400px)}
dialog::backdrop{background:rgba(0,0,0,.6)}
.dialog-body{padding:18px;display:flex;flex-direction:column;gap:12px}
.dialog-body h3{margin:0 0 4px;font-size:17px}
.dialog-body label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.dialog-body input{background:var(--panel2);border:1px solid var(--line);border-radius:10px;
  color:var(--text);padding:10px;font-size:14px}
.dialog-actions{display:flex;gap:10px;margin-top:8px}
.menu{position:fixed;z-index:30;background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:6px;min-width:160px;box-shadow:0 12px 40px rgba(0,0,0,.5)}
.menu button{display:block;width:100%;text-align:left;background:none;border:none;color:var(--text);
  padding:11px 12px;font-size:14px;border-radius:10px}
.menu button:active{background:var(--panel2)}
.menu button.danger{color:#ff8b8b}

/* 上传进度 */
.progress{position:fixed;left:10px;right:10px;bottom:calc(58px + env(safe-area-inset-bottom));
  z-index:20;background:rgba(17,28,51,.98);border:1px solid var(--line);border-radius:16px;
  padding:12px 14px;box-shadow:0 10px 30px rgba(0,0,0,.45);transition:opacity .2s}
.progress.hidden{display:none}
.progress-head{display:flex;justify-content:space-between;gap:10px;font-size:13px;margin-bottom:8px}
.progress-head #pg-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.progress-head #pg-pct{color:#6ea8ff;font-variant-numeric:tabular-nums;font-weight:600}
.progress-bar{height:8px;border-radius:999px;background:#0a1526;overflow:hidden}
.progress-fill{height:100%;width:0%;border-radius:999px;background:linear-gradient(90deg,#3b82f6,#22d3ee);transition:width .12s linear}
.progress-sub{display:flex;justify-content:space-between;margin-top:7px;color:var(--muted);font-size:12px}

/* v7 功能扩展 */
.hidden{display:none !important}
.toolbar.second .btn{font-size:13px;min-height:38px;padding:8px 8px}
.selbar{position:fixed;left:10px;right:10px;bottom:calc(58px + env(safe-area-inset-bottom));z-index:22;
  background:#1d2f52;border:1px solid #2b4270;border-radius:14px;padding:10px 12px;
  display:flex;flex-direction:column;gap:8px;box-shadow:0 10px 30px rgba(0,0,0,.45)}
.selbar-actions{display:flex;gap:8px;flex-wrap:wrap}
.btn.small{padding:7px 12px;min-height:34px;font-size:13px;flex:0 1 auto}
.searchbar{display:flex;gap:8px;padding:4px 12px 8px}
.searchbar input{flex:1;background:var(--panel2);border:1px solid var(--line);border-radius:12px;
  color:var(--text);padding:10px;font-size:14px}
.row.selected{outline:2px solid var(--accent);outline-offset:-2px;background:#15294a}
.row .chk{width:24px;height:24px;flex:0 0 auto}
.row .thumb{width:42px;height:42px;border-radius:9px;object-fit:cover;flex:0 0 auto;background:#0a1526}
.queue{position:fixed;left:10px;right:10px;bottom:calc(58px + env(safe-area-inset-bottom));z-index:21;
  background:rgba(17,28,51,.98);border:1px solid var(--line);border-radius:16px;padding:12px 14px;
  max-height:42vh;display:flex;flex-direction:column;box-shadow:0 10px 30px rgba(0,0,0,.5)}
.queue-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:13px;color:var(--muted)}
.queue-list{overflow:auto;display:flex;flex-direction:column;gap:10px}
.qi{display:flex;flex-direction:column;gap:6px;font-size:13px}
.qi-head{display:flex;justify-content:space-between;gap:8px}
.qi-head .nm{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.qi-head .st{color:var(--muted);font-variant-numeric:tabular-nums}
.qi-bar{height:6px;border-radius:999px;background:#0a1526;overflow:hidden}
.qi-fill{height:100%;width:0%;background:linear-gradient(90deg,#3b82f6,#22d3ee)}
.qi .act{background:none;border:none;color:#ff8b8b;font-size:12px;padding:0 2px}
.qi.error .qi-head .st{color:#ff8b8b}
.qi.done .qi-fill{background:linear-gradient(90deg,#22c55e,#4ade80)}
.preview{position:fixed;inset:0;z-index:40;background:#050b16;display:flex;flex-direction:column}
.preview-top{display:flex;align-items:center;gap:8px;padding:calc(8px + env(safe-area-inset-top)) 12px 8px;
  border-bottom:1px solid var(--line);background:rgba(10,18,32,.95)}
.preview-top #pv-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}
.preview-body{flex:1;display:flex;align-items:center;justify-content:center;overflow:auto;padding:8px}
.preview-body img,.preview-body video{max-width:100%;max-height:100%;object-fit:contain}
.preview-body audio{width:90%}
.preview-body pre{color:var(--text);font-size:12px;line-height:1.5;white-space:pre-wrap;word-break:break-all;
  background:#0b1424;border:1px solid var(--line);border-radius:12px;padding:12px;max-width:100%}
.preview-body .info{color:var(--muted);text-align:center;line-height:2;font-size:14px}
.switch-row{flex-direction:row !important;align-items:center;justify-content:space-between}
.switch-row input{width:auto}