.st-description{color:#475569;margin-bottom:14px}.st-volume-warn{display:flex;align-items:flex-start;gap:10px;background:#fffbeb;border:1px solid #fcd34d;border-radius:8px;padding:12px 16px;margin-bottom:22px;font-size:.92rem;line-height:1.7;color:#7c5b12;text-align:left}.st-warn-icon{font-size:1.2rem;line-height:1.4;flex-shrink:0}.st-volume-warn strong{color:#b45309}.st-unsupported{display:none;background:#fdf2f2;border:1px solid #e57373;border-radius:8px;padding:16px 18px;margin-bottom:20px;text-align:left;color:#b23b3b;font-size:.95rem;line-height:1.8}.st-unsupported .st-unsupported-head{font-weight:700;display:block;margin-bottom:6px}.st-panel{background:#f9fafb;border:1px solid #e2e8f0;border-radius:10px;padding:22px 20px;margin-bottom:22px;text-align:left}.st-panel h2{font-size:1.15rem;margin:0 0 10px;color:#1e293b;font-weight:700}.st-panel-lead{font-size:.9rem;color:#64748b;line-height:1.7;margin:0 0 18px}.st-speakers{display:flex;justify-content:center;gap:40px;margin:6px 0 14px}.st-speaker{display:flex;flex-direction:column;align-items:center;gap:8px}.st-speaker-icon{width:84px;height:84px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#eef2f6;border:2px solid #d5dde5;color:#94a3b8;transition:color .15s,background .15s,border-color .15s,box-shadow .15s,transform .15s}.st-speaker.is-active .st-speaker-icon{color:var(--accent);background:var(--accent-bg, #eaf5f4);border-color:var(--accent);box-shadow:0 0 0 6px var(--accent-soft, rgba(42,157,143,.12));transform:scale(1.05);animation:st-pulse .7s ease-in-out infinite}.st-speaker-label{font-size:.85rem;font-weight:700;color:#64748b}.st-speaker.is-active .st-speaker-label{color:var(--accent)}.st-speaker .st-wave{opacity:.35}.st-speaker.is-active .st-wave{opacity:1}@keyframes st-pulse{0%,to{box-shadow:0 0 0 6px var(--accent-soft, rgba(42,157,143,.12))}50%{box-shadow:0 0 0 12px var(--accent-soft, rgba(42,157,143,.12))}}@media (prefers-reduced-motion: reduce){.st-speaker.is-active .st-speaker-icon{animation:none}}.st-now{text-align:center;font-size:1.15rem;font-weight:700;color:#1e293b;min-height:1.6em;margin-bottom:16px}.st-now.is-playing{color:var(--accent)}.st-lr-buttons{display:flex;gap:10px;flex-wrap:wrap}.st-lr-btn{flex:1;min-width:120px;padding:16px 12px;font-size:1rem;font-weight:700;border:2px solid var(--accent);border-radius:10px;background:#fff;color:var(--accent);cursor:pointer;transition:background .12s,color .12s}.st-lr-btn:hover{background:var(--accent-bg, #eaf5f4)}.st-lr-btn:active{background:var(--accent);color:#fff}.st-freq-presets{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}.st-preset-btn{flex:1;min-width:90px;padding:12px 8px;font-size:.95rem;font-weight:700;border:1px solid #cbd5e1;border-radius:8px;background:#fff;color:#334155;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;transition:border-color .12s,background .12s}.st-preset-btn:hover{border-color:var(--accent)}.st-preset-btn.is-selected{border-color:var(--accent);background:var(--accent-bg, #eaf5f4);color:var(--accent)}.st-preset-hz{font-size:.78rem;font-weight:400;color:#64748b}.st-preset-btn.is-selected .st-preset-hz{color:var(--accent)}.st-slider-row{display:flex;align-items:center;gap:14px;margin-bottom:18px;flex-wrap:wrap}#freqSlider{flex:1;min-width:180px;height:30px;accent-color:var(--accent);cursor:pointer}.st-freq-value{font-size:1.2rem;font-weight:700;color:#1e293b;font-variant-numeric:tabular-nums;min-width:100px;text-align:right}.st-freq-value #freqValue{color:var(--accent)}.st-freq-controls{display:flex}.st-toggle-btn{padding:13px 30px;font-size:1rem;font-weight:700;border:none;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer;transition:background .15s}.st-toggle-btn:hover{background:var(--accent-hover)}.st-toggle-btn.is-playing{background:#dc2626}.st-toggle-btn.is-playing:hover{background:#b91c1c}.st-extra-grid{display:flex;flex-direction:column;gap:18px}.st-extra-item{display:flex;flex-direction:column;gap:6px}.st-extra-btn{padding:14px 18px;font-size:.98rem;font-weight:700;border:2px solid var(--accent);border-radius:10px;background:#fff;color:var(--accent);cursor:pointer;text-align:left;transition:background .12s,color .12s}.st-extra-btn:hover{background:var(--accent-bg, #eaf5f4)}.st-extra-btn.is-playing{background:var(--accent);color:#fff}.st-extra-btn:disabled{opacity:.6;cursor:default}.st-extra-note{font-size:.85rem;color:#64748b;line-height:1.7;margin:0}.st-checklist{background:#f0f9f8;border:1px solid #bfe3de;border-radius:10px;padding:20px 22px;margin-bottom:22px;text-align:left}.st-checklist h2{font-size:1.05rem;margin:0 0 12px;color:#1e293b;font-weight:700}.st-checklist ul{margin:0 0 0 20px;padding:0;list-style:disc}.st-checklist li{font-size:.92rem;color:#334155;line-height:1.7;margin-bottom:6px}@media (max-width: 480px){.st-speakers{gap:24px}.st-speaker-icon{width:72px;height:72px}.st-lr-btn{font-size:.92rem;padding:14px 8px;min-width:100px}.st-freq-value{min-width:84px;font-size:1.05rem}}@media (max-width: 600px){.st-lr-buttons{display:grid;grid-template-columns:1fr 1fr}.st-lr-btn[data-side=left]{grid-column:1;grid-row:1}.st-lr-btn[data-side=right]{grid-column:2;grid-row:1}.st-lr-btn[data-side=both]{grid-column:1 / -1;grid-row:2}}