:root{
  --bg:#f4f6f9;--panel:#ffffff;--panel2:#f2f4f7;--line:#e4e7ec;--line2:#eef0f3;--text:#1d2433;--muted:#6b7385;
  --accent:#e2483d;--accent2:#c9362c;--accentSoft:#fdecea;--ok:#1f9d55;--warn:#b7791f;--sel:#2f6fed;--selSoft:#e8f0fe;
  --r:12px;--shadow:0 1px 2px rgba(16,24,40,.06),0 4px 14px rgba(16,24,40,.07);--shadow2:0 8px 30px rgba(16,24,40,.12);
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-size:14px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:7px 12px;cursor:pointer;white-space:nowrap;transition:background .12s,border-color .12s,color .12s,box-shadow .12s;box-shadow:0 1px 1px rgba(16,24,40,.04)}
button:hover{background:var(--panel2);border-color:#d3d8e0}
button.on{background:var(--accentSoft);border-color:#f5b8b2;color:var(--accent2);font-weight:600}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
button.primary:hover{background:var(--accent2);border-color:var(--accent2)}
button:disabled{opacity:.45;cursor:default}
select{background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:6px 8px}
input[type=text],input[type=password],input[type=search]{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:9px 12px;width:100%;outline:none;transition:border-color .12s,box-shadow .12s}
input[type=text]:focus,input[type=password]:focus,input[type=search]:focus{border-color:#9db8f5;box-shadow:0 0 0 3px #dbe6fd}
input[type=range]{accent-color:var(--accent)}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.2px}
.brand .logo{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#f0584d,#d4372c);display:grid;place-items:center;color:#fff;font-size:13px;box-shadow:0 2px 6px #e2483d55}
.muted{color:var(--muted)}
.chip{display:inline-block;padding:2px 9px;border-radius:99px;background:var(--panel2);border:1px solid var(--line);font-size:12px}
/* ---------- home ---------- */
.home{max-width:1000px;margin:0 auto;padding:26px 18px 60px}
.home header{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.drop{border:2px dashed #d5dae2;border-radius:14px;padding:30px;text-align:center;cursor:pointer;transition:.15s;background:#fafbfc}
.drop:hover{border-color:#c3cad5;background:#f6f8fa}
.drop.hover{border-color:var(--accent);background:var(--accentSoft)}
.uprow{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.plist{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.pitem{display:flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow);transition:box-shadow .15s}
.pitem:hover{box-shadow:var(--shadow2)}
.pitem .nm{font-weight:600;font-size:16px}
.pitem .grow{flex:1;min-width:0}
.bar{height:6px;background:var(--panel2);border-radius:9px;overflow:hidden;margin-top:6px}
.bar>i{display:block;height:100%;background:var(--accent);transition:width .3s}
/* ---------- viewer ---------- */
.app{position:fixed;inset:0;display:flex;flex-direction:column}
.top{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:8px 12px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);flex-shrink:0;z-index:3;box-shadow:0 1px 3px rgba(16,24,40,.05)}
.top .sep{width:1px;height:24px;background:var(--line);margin:0 3px}
.top .grp{display:flex;gap:6px;align-items:center}
.top label{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px;white-space:nowrap}
.top input[type=range]{width:90px}
.main{flex:1;display:flex;min-height:0;position:relative}
.side{width:340px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;flex-shrink:0}
.side.hidden{display:none}
.side .search{padding:12px;border-bottom:1px solid var(--line);display:flex;gap:6px}
.tree{overflow:auto;flex:1;padding:6px 0 30px}
.pos{border-bottom:1px solid var(--line2)}
.pos>.ph{display:flex;align-items:center;gap:7px;padding:9px 12px;cursor:pointer;user-select:none}
.pos>.ph:hover,.part:hover{background:#f6f8fb}
.pos>.ph .tw{width:16px;color:var(--muted);transition:.15s;font-size:11px}
.pos.open>.ph .tw{transform:rotate(90deg)}
.pos>.ph b{font-size:14px}
.pos>.ph .cnt{margin-left:auto;color:var(--muted);font-size:11px;background:var(--panel2);border-radius:99px;padding:1px 8px}
.pos .parts{display:none;padding-bottom:4px}
.pos.open .parts{display:block}
.part{display:flex;align-items:center;gap:8px;padding:6px 12px 6px 34px;cursor:pointer;font-size:13px}
.part .sw{width:11px;height:11px;border-radius:3px;flex-shrink:0;border:1px solid rgba(0,0,0,.18)}
.part .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.part .d{color:var(--muted);font-size:11px;white-space:nowrap}
.part.sel,.pos.sel>.ph{background:var(--selSoft);box-shadow:inset 3px 0 0 var(--sel)}
.part.off .t,.pos.off>.ph b{opacity:.45;text-decoration:line-through}
.eye{background:none;border:none;box-shadow:none;padding:2px 4px;color:var(--muted);font-size:14px;opacity:.7}
.eye:hover{color:var(--text);background:none;opacity:1}
#view{flex:1;position:relative;min-width:0;touch-action:none;background:radial-gradient(ellipse at 50% 25%,#ffffff 0%,#eef1f5 55%,#dfe4eb 100%)}
#gl,#ov{position:absolute;inset:0;width:100%;height:100%;display:block}
#ov{pointer-events:none}
.info{position:absolute;right:12px;top:12px;width:340px;max-height:calc(100% - 24px);overflow:auto;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:16px;padding:14px 16px;backdrop-filter:blur(8px);display:none;box-shadow:var(--shadow2)}
.info.show{display:block}
.info h3{margin:0 0 3px;font-size:17px}
.info .sub{color:var(--muted);font-size:12px;margin-bottom:10px}
.info table{width:100%;border-collapse:collapse;font-size:13px}
.info td{padding:5px 0;border-bottom:1px solid var(--line2);vertical-align:top}
.info td:first-child{color:var(--muted);width:42%;padding-right:8px}
.info .sec{margin:14px 0 6px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.7px;color:var(--muted)}
.info .x{position:absolute;right:10px;top:8px;background:none;border:none;box-shadow:none;font-size:20px;color:var(--muted)}
.info .x:hover{color:var(--text);background:none}
.edges{display:grid;grid-template-columns:auto 1fr;gap:5px 8px;font-size:13px;align-items:center}
.edges .k{display:inline-block;width:16px;height:7px;border-radius:3px}
.badge{display:inline-block;padding:1px 7px;border-radius:5px;font-size:12px;font-weight:600}
.hint{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);background:#1d2433e6;color:#fff;padding:7px 14px;border-radius:99px;font-size:13px;pointer-events:none;display:none;white-space:nowrap;box-shadow:var(--shadow2)}
.hint.show{display:block}
.cube{position:absolute;left:12px;bottom:12px;display:grid;grid-template-columns:repeat(3,auto);gap:4px;background:rgba(255,255,255,.85);backdrop-filter:blur(6px);padding:6px;border-radius:12px;border:1px solid var(--line);box-shadow:var(--shadow)}
.cube button{padding:5px 9px;font-size:12px;box-shadow:none}
.loading{position:absolute;inset:0;display:grid;place-items:center;background:var(--bg);z-index:5}
.loading .box{width:300px;text-align:center}
.legend{position:absolute;left:50%;transform:translateX(-50%);bottom:12px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:10px;padding:7px 12px;font-size:12px;display:none;box-shadow:var(--shadow)}
.legend.show{display:block}
.legend span{display:inline-flex;align-items:center;gap:5px;margin-right:10px}
.legend i{width:10px;height:10px;border-radius:50%;display:inline-block;border:1px solid rgba(0,0,0,.15)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#d6dbe2;border-radius:9px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:#c2c9d3;background-clip:padding-box;border:2px solid transparent}
@media (max-width:820px){
  .side{position:absolute;left:0;top:0;bottom:0;z-index:4;width:88%;max-width:360px;box-shadow:var(--shadow2)}
  .info{left:8px;right:8px;width:auto;top:auto;bottom:8px;max-height:48%}
  .top{gap:6px;padding:6px}
  .top button{padding:7px 9px}
  .cube{top:10px;bottom:auto;left:auto;right:10px}
  .cube button{padding:4px 6px;font-size:11px}
  .hide-m{display:none!important}
}