.third-study{display:grid;grid-template-columns:1fr 1fr;gap:42px;margin:42px 0;padding:34px 0;border-top:1px solid var(--line,#b7ad95);border-bottom:1px solid var(--line,#b7ad95)}.third-study h2{font-family:var(--serif,Georgia,serif);font-size:clamp(30px,4vw,48px);line-height:1.12;font-weight:500;letter-spacing:-.025em;margin:16px 0}.third-study p{font-size:16px;line-height:1.7}.third-switch{display:flex;gap:10px;margin:22px 0}.third-switch button{font:inherit;font-size:15px;background:transparent;color:inherit;border:1px solid var(--line,#aaa);padding:12px 18px;cursor:pointer}.third-switch button[aria-pressed=true]{border-color:var(--brass);box-shadow:inset 0 -3px var(--brass)}.third-study .third-note{font-size:13px;min-height:3em;opacity:.8;margin:14px 0}.third-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;border-bottom:1px solid var(--line,#aaa);padding:28px 0}.third-notes>div{text-align:center}.third-notes b{display:block;font:48px Georgia,serif}.third-notes span{font-size:10px;letter-spacing:.12em}.changing-note{color:var(--brass)}.third-ruler{display:flex;justify-content:space-between;padding-top:24px;gap:5px}.third-ruler>span{flex:1;text-align:center;font-size:12px;opacity:.5}.third-ruler i{display:block;width:12px;height:12px;margin:12px auto;border:1px solid currentColor;border-radius:50%}.third-ruler .sounding{opacity:1;color:var(--brass)}.third-ruler .sounding i{background:currentColor}.third-study summary{cursor:pointer;font-size:14px;padding:12px 0}.third-study a{color:var(--brass);font-size:14px}.third-next{display:inline-block;margin-top:20px;padding:12px 0}.third-study :focus-visible{outline:2px solid var(--brass);outline-offset:4px}@media(max-width:760px){.third-study{grid-template-columns:1fr;gap:14px}}