.dq-overlay{--dq-blue: #2563eb;--dq-blue-h: #1d4ed8;--dq-ink: #111827;--dq-ink-2: #374151;--dq-ink-3: #6b7280;--dq-rule: #e5e7eb;--dq-surface: #ffffff;--dq-mist: #f3f4f6;--dq-blue-soft: #eff6ff;position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px;background:#0d121e8c;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;transition:opacity .25s ease;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.dq-overlay.is-open{opacity:1}body.dq-lock{overflow:hidden}.dq-card{position:relative;width:100%;max-width:520px;max-height:calc(100vh - 40px);display:flex;flex-direction:column;background:var(--dq-surface);border-radius:20px;box-shadow:0 30px 80px #0d121e59;overflow:hidden;transform:translateY(12px) scale(.985);transition:transform .25s ease}.dq-overlay.is-open .dq-card{transform:translateY(0) scale(1)}.dq-top{display:flex;align-items:center;gap:12px;padding:16px 18px 4px;flex-shrink:0}.dq-back,.dq-close{width:30px;height:30px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--dq-ink-3);border-radius:8px;cursor:pointer;transition:background .15s,color .15s}.dq-back:hover,.dq-close:hover{background:var(--dq-mist);color:var(--dq-ink)}.dq-progress{flex:1;height:8px;background:var(--dq-rule);border-radius:999px;overflow:visible}.dq-progress-fill{position:relative;height:100%;width:0%;background:linear-gradient(90deg,var(--dq-blue),#3b82f6);border-radius:999px;transition:width .3s ease}.dq-progress-fill:after{content:"";position:absolute;right:-4px;top:50%;width:16px;height:16px;transform:translateY(-50%);background:#fff;border:3px solid var(--dq-blue);border-radius:50%;box-shadow:0 2px 6px #2563eb59}.dq-body{padding:18px 28px 24px;height:524px;max-height:calc(100vh - 72px);display:flex;flex-direction:column;overflow:hidden;transition:opacity .18s ease,transform .18s ease}.dq-body.dq-leaving{opacity:0;transform:translateY(8px)}.dq-body.dq-entering{opacity:0;transform:translateY(-8px)}.dq-q{flex-shrink:0;margin:4px 0 18px;font-size:21px;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--dq-ink)}.dq-main{flex:1 1 auto;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:10px}.dq-tiles{display:flex;flex-direction:column;gap:10px}.dq-tile{display:flex;align-items:center;gap:13px;width:100%;text-align:left;background:var(--dq-surface);border:1.5px solid var(--dq-rule);border-radius:13px;padding:13px 16px;cursor:pointer;font-family:inherit;color:var(--dq-ink);transition:border-color .15s,background .15s,box-shadow .15s}.dq-tile:hover{border-color:#c3d3f5;background:#fafbff}.dq-tile-ic{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.dq-ic-blue{background:var(--dq-blue)}.dq-ic-teal{background:#0d9488}.dq-tile-tx{display:flex;flex-direction:column;gap:3px;min-width:0}.dq-tile-t{font-weight:600;font-size:15px}.dq-tile-d{font-size:13px;color:var(--dq-ink-3);line-height:1.4}.dq-tile-arr{margin-left:auto;color:#9ca3af;flex-shrink:0;display:flex}.dq-tile--row{justify-content:space-between}.dq-tile--row .dq-tile-t{font-weight:500}.dq-tile-check{width:22px;height:22px;border-radius:50%;border:1.5px solid var(--dq-rule);display:flex;align-items:center;justify-content:center;color:transparent;flex-shrink:0;transition:background .15s,border-color .15s,color .15s}.dq-tile--row.is-selected{border-color:var(--dq-blue);background:var(--dq-blue-soft)}.dq-tile--row.is-selected .dq-tile-t{font-weight:600}.dq-tile--row.is-selected .dq-tile-check{background:var(--dq-blue);border-color:var(--dq-blue);color:#fff}.dq-search{position:relative;margin-bottom:14px}.dq-search-ic{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--dq-ink-3);pointer-events:none}.dq-search-input{width:100%;box-sizing:border-box;padding:13px 14px 13px 40px;font-family:inherit;font-size:15px;color:var(--dq-ink);background:var(--dq-mist);border:1.5px solid transparent;border-radius:12px;outline:none;transition:background .15s,border-color .15s}.dq-search-input::placeholder{color:var(--dq-ink-3)}.dq-search-input:focus{background:#fff;border-color:var(--dq-blue);box-shadow:0 0 0 3px #2563eb1f}.dq-results{display:flex;flex-direction:column;gap:8px}.dq-results .dq-tile--row{padding:13px 15px}.dq-continue{width:100%;flex-shrink:0;margin-top:16px;padding:14px;font-family:inherit;font-size:15px;font-weight:600;color:#fff;background:var(--dq-blue);border:none;border-radius:12px;cursor:pointer;transition:background .15s,opacity .15s}.dq-continue:hover:not(:disabled){background:var(--dq-blue-h)}.dq-continue:disabled{background:#c7d2e8;cursor:not-allowed}@media(max-width:540px){.dq-overlay{padding:14px;align-items:center}.dq-card{max-width:100%;max-height:calc(100vh - 28px);border-radius:18px}.dq-body{padding:16px 20px 20px;height:524px;max-height:calc(100vh - 84px)}.dq-q{font-size:19px}}.dq-card.dq-inline{--dq-blue: #2563eb;--dq-blue-h: #1d4ed8;--dq-ink: #111827;--dq-ink-2: #374151;--dq-ink-3: #6b7280;--dq-rule: #e5e7eb;--dq-surface: #ffffff;--dq-mist: #f3f4f6;--dq-blue-soft: #eff6ff;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;width:100%;max-width:560px;margin:auto;max-height:100%;box-shadow:none;border:1px solid var(--dq-rule);transform:none}.dq-card.dq-inline .dq-close{display:none}.dq-card.dq-inline .dq-body{height:524px;max-height:calc(100vh - 160px)}.dq-quiz-host{display:flex;min-height:0;padding:24px;background:#f9fafb;overflow:auto}.dq-main--center{justify-content:center}.dq-sub{margin:-8px 0 4px;font-size:14px;color:var(--dq-ink-3);line-height:1.5}.dq-drop-area{display:flex;flex-direction:column;align-items:center;gap:6px;padding:32px 24px 28px;border:2px dashed #d1d5db;border-radius:16px;text-align:center;color:var(--dq-ink-3);background:var(--dq-surface);transition:border-color .2s,background .2s;cursor:default}.dq-drop-area.is-drag{border-color:var(--dq-blue);background:var(--dq-blue-soft)}.dq-upload-icon{color:var(--dq-blue);margin-bottom:8px;flex-shrink:0}.dq-drop-label{font-size:15px;font-weight:500;color:var(--dq-ink-2)}.dq-drop-hint{font-size:12px;color:var(--dq-ink-3)}.dq-browse-btn{margin-top:14px;padding:9px 30px;background:var(--dq-blue);color:#fff;border:none;border-radius:8px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s}.dq-browse-btn:hover{background:var(--dq-blue-h)}.dq-file-preview{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1.5px solid var(--dq-rule);border-radius:12px;background:var(--dq-surface)}.dq-file-icon{color:var(--dq-blue);flex-shrink:0}.dq-file-name{flex:1;font-size:14px;font-weight:500;color:var(--dq-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dq-file-remove{background:none;border:none;padding:4px;color:var(--dq-ink-3);cursor:pointer;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:color .15s,background .15s}.dq-file-remove:hover{color:#ef4444;background:#fee2e2}@keyframes dq-scan{0%{transform:translate(-120%)}to{transform:translate(350%)}}@keyframes dq-spin{to{transform:rotate(360deg)}}@keyframes dq-pop{0%{transform:scale(.4);opacity:0}to{transform:scale(1);opacity:1}}@keyframes dq-fadein{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.dq-scan-bar{height:3px;flex-shrink:0;background:var(--dq-rule);border-radius:999px;overflow:hidden;margin-bottom:28px}.dq-scan-bar:after{content:"";display:block;height:100%;width:38%;background:linear-gradient(90deg,transparent,var(--dq-blue),transparent);animation:dq-scan 1.7s ease-in-out infinite}.dq-checklist{display:flex;flex-direction:column;gap:16px;padding:2px 0;overflow:visible}.dq-check-item{display:flex;align-items:center;gap:14px;font-size:15px;color:var(--dq-ink-3);opacity:.38;transition:opacity .4s,color .4s;overflow:visible}.dq-check-item.is-active,.dq-check-item.is-done{opacity:1;color:var(--dq-ink)}.dq-check-icon{width:24px;height:24px;flex-shrink:0;border-radius:50%;border:1.5px solid var(--dq-rule);display:flex;align-items:center;justify-content:center;color:transparent;transition:background .2s,border-color .2s,color .2s}.dq-check-icon.is-spinning{border-color:var(--dq-blue);border-top-color:transparent;animation:dq-spin .7s linear infinite}.dq-check-item.is-done .dq-check-icon{background:var(--dq-blue);border-color:var(--dq-blue);color:#fff;animation:dq-pop .32s ease-out}.dq-result{border-radius:16px;overflow:hidden;border:1.5px solid #bfdbfe;animation:dq-fadein .35s ease-out}.dq-result-head{padding:18px 22px 16px;background:linear-gradient(130deg,#1e40af 0%,var(--dq-blue) 55%,#3b82f6 100%);color:#fff}.dq-result-headline{display:block;font-size:16px;font-weight:700;line-height:1.35}.dq-result-body{padding:14px 22px 18px;background:var(--dq-blue-soft);display:flex;flex-direction:column;gap:12px}.dq-result-support{margin:0;font-size:13px;color:var(--dq-ink-3);line-height:1.5}.dq-result-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.dq-result-list li{font-size:14px;font-weight:500;color:var(--dq-ink-2);padding-left:18px;position:relative;line-height:1.4}.dq-result-list li:before{content:"";position:absolute;left:0;top:7px;width:7px;height:7px;border-radius:50%;background:var(--dq-blue)}