/* Exam builder page */
.wwqb-eb{max-width:1040px;padding-bottom:80px}
.eb-sec{border:1px solid var(--wwqb-line);border-radius:14px;padding:18px 20px;margin:0 0 18px;background:#fff}
.eb-sec h2{font-size:21px;margin:0 0 10px;display:flex;align-items:center;gap:10px}
.eb-n{display:inline-flex;width:30px;height:30px;border-radius:50%;align-items:center;justify-content:center;color:#fff;font-size:16px;background:linear-gradient(135deg,var(--wwqb-blue),var(--wwqb-purple))}
.eb-tip{color:var(--wwqb-muted);font-size:14px;margin:0 0 12px}
.eb-tabs{display:inline-flex;border:1px solid var(--wwqb-line);border-radius:999px;overflow:hidden;margin-bottom:12px}
.eb-tabs button{border:0;background:#fff;padding:8px 16px;font-size:14px;cursor:pointer;color:var(--wwqb-ink)}.eb-tabs button.on{background:var(--wwqb-blue);color:#fff}
.eb-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;align-items:center}
.eb-row select,.eb-row input[type=search],.eb-f input,.eb-f textarea{padding:7px 10px;border:1px solid var(--wwqb-line);border-radius:8px;background:#fff;font-size:15px;color:var(--wwqb-ink)}
.eb-row input[type=search]{flex:1;min-width:200px}
.eb-papers{max-height:380px;overflow:auto;border:1px solid var(--wwqb-line);border-radius:10px}
.eb-paper{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;padding:8px 12px;border-bottom:1px solid var(--wwqb-line)}
.eb-paper:last-child{border-bottom:0}.eb-paper .nm{font-weight:600;flex:1;min-width:220px}.eb-paper .ct{font-size:13px;color:var(--wwqb-muted)}
.eb-paper .ac{display:flex;gap:6px}.eb-paper .wwqb-btn,.eb-build .wwqb-btn{padding:6px 14px;font-size:14px}
.eb-tqbar{display:flex;justify-content:space-between;align-items:center;margin:4px 0 8px;font-size:14px;color:var(--wwqb-muted)}
.eb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px;max-height:420px;overflow:auto;padding:2px}
.eb-pick{display:grid;grid-template-columns:auto 1fr auto;gap:2px 8px;align-items:start;padding:9px 11px;border:1px solid var(--wwqb-line);border-radius:10px;cursor:pointer;font-size:14px;background:#fff}
.eb-pick input{margin-top:4px;grid-row:span 2}.eb-pick .t{font-weight:600}.eb-pick .m{grid-column:2;font-size:12.5px;color:var(--wwqb-muted)}
.eb-pick .v{grid-row:1;grid-column:3;font-size:12.5px;color:var(--wwqb-blue)}
.eb-pick:has(input:checked){border-color:var(--wwqb-blue);background:#eff6ff}
.eb-pick.lvl-as{border-left:5px solid #7c3aed}
.eb-list{list-style:none;margin:0;padding:0}
.eb-q{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;padding:9px 10px;border:1px solid var(--wwqb-line);border-radius:10px;margin-bottom:6px;background:#fff}
.eb-q.drag{opacity:.4}.eb-q.over{border-color:var(--wwqb-blue);box-shadow:0 -3px 0 var(--wwqb-blue)}
.eb-q .h{cursor:grab;color:var(--wwqb-muted);font-size:18px;user-select:none}
.eb-q .no{font-weight:700;min-width:1.8em;text-align:right}
.eb-q .info{flex:1;min-width:200px;display:flex;flex-direction:column}
.eb-q .info .t{font-weight:600;color:var(--wwqb-ink);text-decoration:none}.eb-q .info .t:hover{color:var(--wwqb-blue)}
.eb-q .src{font-size:12.5px;color:var(--wwqb-muted)}
.eb-q .mk{font-size:14px;font-weight:600;background:#e0f2fe;border-radius:999px;padding:2px 10px}
.eb-q .sp,.eb-q .mv{display:flex;gap:4px;align-items:center}
.eb-q button{border:1px solid var(--wwqb-line);background:#fff;border-radius:6px;padding:3px 8px;font-size:13px;cursor:pointer;color:var(--wwqb-ink)}
.eb-q button:disabled{opacity:.3;cursor:default}.eb-q [data-rm]{color:#b91c1c}
.eb-q .sp em{font-size:12px;color:var(--wwqb-muted)}
.eb-empty{padding:16px;color:var(--wwqb-muted);border:1px dashed var(--wwqb-line);border-radius:10px;text-align:center}
.eb-total{display:flex;gap:12px;align-items:center;justify-content:flex-end;padding:10px 4px 0;font-size:16px}
.eb-styles{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.eb-style{border:1px solid var(--wwqb-line);border-radius:10px;padding:8px 14px;cursor:pointer;font-weight:600;font-size:14px}
.eb-style input{margin-right:6px}.eb-style.on{border-color:var(--wwqb-blue);background:#eff6ff}
.eb-check{display:inline-flex;gap:6px;align-items:center;font-size:15px;margin:4px 0 10px}
.eb-fields{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin-bottom:14px}
.eb-f{display:flex;flex-direction:column;gap:3px;font-size:13px;color:var(--wwqb-muted)}.eb-f.wide{grid-column:1/-1}
.eb-f textarea{font-family:inherit;font-size:14px}
.eb-more label{font-size:14px;color:var(--wwqb-muted);display:flex;gap:6px;align-items:center}
.eb-build{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.eb-status{font-weight:600;color:var(--wwqb-blue);min-height:1.2em}
.eb-preview{margin-top:10px}
.eb-pvbar{display:flex;gap:6px;align-items:center;margin-bottom:6px}
.eb-pvbar button{border:1px solid var(--wwqb-line);background:#fff;border-radius:999px;padding:5px 14px;cursor:pointer;font-size:14px}.eb-pvbar button.on{background:var(--wwqb-blue);color:#fff;border-color:var(--wwqb-blue)}
.eb-pvinfo{margin-left:auto;font-size:14px;color:var(--wwqb-muted)}
.eb-frame{width:100%;height:80vh;border:1px solid var(--wwqb-line);border-radius:10px;background:#e5e7eb}
.eb-sticky{position:fixed;left:0;right:0;bottom:0;z-index:50;display:flex;justify-content:center;gap:16px;align-items:center;padding:10px 16px;background:#111827;color:#fff;font-weight:600;font-size:15px}
.wwqb .eb-sticky a.eb-jump{color:#fff;background:linear-gradient(135deg,var(--wwqb-blue),var(--wwqb-purple));padding:5px 14px;border-radius:999px;text-decoration:none}
@media (max-width:600px){.eb-sec{padding:14px}.eb-q .info{min-width:100%;order:3}.eb-frame{height:70vh}}