*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:26px}body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}button,a,summary{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid 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18px;border:1px solid var(--line);background:var(--paper);box-shadow:0 4px 22px #0002;z-index:10;font-size:12px}
/* Direction B: warm, centered, tactile. */
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/* Direction C: dark editorial listening studio. */
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.studio-audio .play{color:var(--accent)}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}