.waves-task{color:var(--text);font-size:15px;line-height:1.8;margin:14px 0}.waves-legend{font-size:13px;line-height:1.75;color:var(--muted);margin:12px 0 4px}.waves-svg{display:block;width:100%;height:auto;overflow:hidden;touch-action:pan-y;border-radius:9px;background:var(--surface2)}.waves-svg text{fill:var(--muted);font:17px system-ui,sans-serif}.waves-controls{border-top:1px solid var(--line);margin-top:13px;padding-top:12px}.waves-slider{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:2px 12px;font-size:14px;font-weight:700;margin:12px 0;color:var(--text)}.waves-slider output{color:var(--accent);font-variant-numeric:tabular-nums}.waves-slider input{grid-column:1/-1;min-width:0;width:100%;min-height:44px;margin:0;accent-color:var(--accent);cursor:pointer;touch-action:pan-y}.waves-slider:has(input:disabled){opacity:.5}.waves-options,.waves-actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.waves-options button,.waves-actions button{border:1px solid var(--line);border-radius:8px;background:var(--surface2);color:var(--text);min-height:44px;padding:9px 13px;font-size:14px;font-weight:600;line-height:1.5}.waves-options button:hover,.waves-actions button:hover{border-color:var(--accent)}.waves-options button[aria-pressed=true],.waves-actions button[aria-pressed=true]{color:var(--accent);border-color:var(--accent);background:var(--surface2)}.waves-controls :focus-visible{outline:2px solid var(--accent);outline-offset:3px}.waves-result{padding:12px 14px;border-radius:9px;background:var(--surface2);font-size:15px;line-height:1.8;color:var(--text);font-variant-numeric:tabular-nums;margin:14px 0 8px;min-height:65px}.waves-note{display:block;color:var(--soft);font-size:12px;line-height:1.8}.waves-sources{margin:30px 0 38px;padding-top:18px;border-top:1px solid var(--line)}.waves-sources h2{font-size:19px;margin:0 0 9px}.waves-sources p,.waves-sources li{font-size:14px;line-height:1.8}.waves-sources ul{padding-left:20px}.waves-sources li{margin:12px 0}.waves-sources a{color:var(--accent);overflow-wrap:anywhere}.waves-sources span{display:block;color:var(--muted)}.waves-article .physics-equation{max-width:100%;font-size:clamp(16px,2.5vw,25px);overflow-wrap:anywhere}.waves-article .physics-formula dl>div{min-width:0}.waves-article .physics-formula dt{min-width:45px}.waves-article .physics-formula dd{overflow-wrap:anywhere}.aha-more{display:block;padding:0 20px 18px;color:var(--accent);font-size:14px;font-weight:700}
@media(max-width:520px){.waves-task{font-size:14px}.waves-legend{font-size:12px}.waves-svg text{font-size:22px}.waves-controls{padding-top:6px}.waves-slider span{overflow-wrap:anywhere}.waves-options button,.waves-actions button{flex-grow:1}.waves-article .physics-formula-inner{padding:0 16px 18px}.waves-article .physics-equation{padding:10px 12px}.waves-article .diagram-title{flex-wrap:wrap}}

.waves-svg[hidden]{display:none}.waves-arrivals{margin:16px 0}.waves-arrivals>small{display:block;color:var(--soft);font-size:12px;line-height:1.8;margin-bottom:8px}.waves-arrivals>div{display:grid;grid-template-columns:45px minmax(0,1fr) 65px;align-items:center;gap:8px;min-height:36px;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}.waves-arrivals b{height:8px;border-radius:8px;overflow:hidden;background:var(--line)}.waves-arrivals i{display:block;height:100%;background:var(--soft);border-radius:8px}.waves-arrivals .selected{color:var(--accent);font-weight:700}.waves-arrivals .selected i{background:var(--accent)}