*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit}button{cursor:pointer}img{max-width:100%;display:block}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--accent,#ee723c);outline-offset:5px}button:disabled{cursor:default}[hidden]{display:none!important}.compare-bar{position:relative;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:10px 28px;background:#fff;color:#262626;border-bottom:1px solid #ddd;font-size:11px;line-height:1.3}.compare-bar>a{display:flex;align-items:center;gap:14px;min-height:28px;text-decoration:none}.compare-bar strong{font-size:11px;letter-spacing:.12em}.compare-links{display:flex;align-items:center;gap:5px}.compare-links a{display:grid;place-items:center;min-width:35px;min-height:32px;border:1px solid #ddd;text-decoration:none}.compare-links a[aria-current=page]{background:#252525;color:#fff;border-color:#252525}.compare-label{color:#757575}.listening-room{width:100%}.track{display:flex;align-items:center;gap:24px;border-top:1px solid var(--line,#aaa);padding:25px 0}.track:last-of-type{border-bottom:1px solid var(--line,#aaa)}.play-button{flex:0 0 48px;width:48px;height:48px;display:grid;place-items:center;border:1px solid currentColor;border-radius:50%;background:none;color:inherit}.play-button span{font-size:13px}.track-copy{min-width:160px}.track-copy h3{font-size:19px;font-weight:500;margin:0 0 8px}.track-copy p{font-size:11px;margin:0;opacity:.65}.waveform{display:flex;align-items:center;gap:4px;height:44px;margin-left:auto}.waveform i{display:block;width:3px;border-radius:2px;background:currentColor;opacity:.5}.track.playing .waveform i{animation:signal .7s ease-in-out infinite alternate;animation-delay:calc(var(--i)*-40ms);opacity:1}.track-time{font-family:monospace;font-size:11px;margin-left:auto}.audio-note{font-size:11px;line-height:1.8;opacity:.7;max-width:680px;margin:24px 0 0}.audio-status{min-height:18px;font-size:12px;line-height:1.7;margin:10px 0}.hardware-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.hardware-image{position:relative;overflow:hidden;background:#f4f3ef;aspect-ratio:1.18}.hardware-image img{width:100%;height:100%;object-fit:contain}.hardware-meta{display:flex;justify-content:space-between;gap:16px;margin:22px 0 12px;font-size:11px;letter-spacing:.08em}.hardware-card h3{font-size:30px;font-weight:500;letter-spacing:-.03em;margin:0 0 15px}.hardware-card>p{font-size:14px;line-height:1.8;opacity:.75;max-width:450px;margin:0 0 22px}.hardware-card>button{padding:13px 0;border:0;border-bottom:1px solid currentColor;background:none;color:inherit;min-height:44px;font-size:13px}.hardware-note{font-size:11px;line-height:1.9;opacity:.7;margin:28px 0 0}.concept-dialog{color:#242424;background:#f6f4ee;border:0;border-radius:4px;padding:0;width:min(900px,calc(100% - 36px));max-height:calc(100dvh - 36px);overflow:auto;box-shadow:0 40px 120px #0005}.concept-dialog::backdrop{background:#101012b8;backdrop-filter:blur(7px)}.concept-close{position:absolute;z-index:2;top:12px;right:12px;width:42px;height:42px;background:#fff;border:1px solid #ddd;border-radius:50%;font-size:25px;color:#252525}.concept-layout{display:grid;grid-template-columns:1fr 1.1fr}.concept-photo{display:flex;align-items:center;background:#eae8e1;min-height:100%}.concept-photo img{width:100%;height:100%;object-fit:contain}.concept-body{padding:45px 35px}.concept-body h2{font-size:34px;letter-spacing:-.04em;font-weight:500;margin:8px 0 16px}.concept-body>p{font-size:13px;line-height:1.9;opacity:.75}.concept-kicker{font-size:10px;letter-spacing:.15em}.concept-body label{display:block;font-size:12px;margin:18px 0 8px}.concept-body select{width:100%;background:#fff;border:1px solid #c9c6bd;border-radius:2px;padding:12px;font-size:16px;color:#242424}.concept-controls{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.concept-controls button{padding:12px 16px;min-height:44px;border:1px solid #242424;color:#242424;background:none}.concept-controls .primary-control{background:#242424;color:#fff}.concept-body input[type=range]{width:100%;accent-color:#ee723c}.concept-display{display:flex;align-items:center;gap:12px;min-height:60px;padding:16px;border:1px solid #ccc9c0;font-size:13px;margin:20px 0}.concept-display i{width:8px;height:8px;flex:0 0 8px;background:#8e968a;border-radius:50%}.concept-display.lit{background:#fff0da}.concept-display.lit i{background:#ef9b40;box-shadow:0 0 12px #ef9b40}.concept-footnote{font-size:10px!important;border-top:1px solid #ccc9c0;padding-top:16px;margin-top:22px}.concept-status{font-size:11px;min-height:22px;line-height:1.8}.demo-log{margin-top:15px;font-size:12px;border-top:1px solid #ccc9c0;padding-top:15px}.demo-log time{display:inline-block;margin-right:15px;font-family:monospace}.dialog-open{overflow:hidden}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@keyframes signal{to{transform:scaleY(.45)}}@media(max-width:700px){.compare-bar{padding:8px 16px;gap:8px}.compare-label{display:none}.compare-bar strong{font-size:9px}.compare-links{gap:3px}.compare-links a{min-width:29px;min-height:32px;font-size:10px}.track{gap:15px}.play-button{flex-basis:42px;width:42px;height:42px}.track-copy{min-width:135px}.track-copy h3{font-size:17px}.waveform{gap:2px}.waveform i{width:2px}.track-time{font-size:10px}.hardware-grid{grid-template-columns:1fr;gap:40px}.hardware-card h3{font-size:27px}.hardware-card>p{font-size:13px}.concept-layout{grid-template-columns:1fr}.concept-photo{height:220px;min-height:0}.concept-body{padding:30px 23px}.concept-body h2{font-size:30px}.concept-close{top:10px;right:10px}.concept-dialog{width:calc(100% - 24px);max-height:calc(100dvh - 24px)}}@media(max-width:430px){.waveform{max-width:64px;overflow:hidden}.compare-bar>a{gap:7px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
