.practice-header{gap:16px}.practice-header>a{background:#fffdf7;border-radius:8px;padding:8px 12px;line-height:0}.practice-header nav{display:flex;gap:18px;flex-wrap:wrap}.practice-header nav a{font-size:13px;padding:10px 0}.practice-intro{margin:12px 0 32px}.practice-intro>h1{font-size:clamp(28px,5vw,46px);letter-spacing:-1.6px}.practice-intro>p{line-height:1.9}.practice-intro details{margin-top:16px}.practice-intro summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-weight:700}.practice-intro details>p{font-size:14px}.practice-intro details>a{display:inline-block;margin:14px}.practice-intro .notice{font-size:14px;line-height:1.8}#practice-app .quiz{margin-inline:auto}#practice-app:focus{outline:none}@media(max-width:500px){.practice-header{align-items:flex-start;flex-direction:column}.practice-header nav{width:100%;justify-content:space-between}.practice-intro{margin-top:4px}.practice-intro .notice{padding:14px}.practice-header img{width:148px;height:auto}}