.learning-reader{max-width:850px;margin:0 auto;padding:2rem 1rem 5rem;color:#19314b}
.learning-reader>a{color:#24517d;text-decoration:none;font-weight:700}
.learning-reader h1{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.25;margin:.6rem 0 1.2rem}
.learning-reader__kind{color:#476684;font-weight:700;margin-top:2rem}
.learning-reader__summary{font-size:1.15rem;line-height:1.8}
.learning-reader__notice{background:#fff3d7;border-radius:.6rem;padding:.8rem}
.learning-reader figure{margin:2rem 0;background:#f4f7f9;border-radius:.75rem;overflow:hidden}
.learning-reader figure img{display:block;width:100%;height:auto}
.learning-reader figcaption{padding:.5rem;text-align:center;color:#607080}
.learning-reader__body{background:white;padding:1.5rem;border:1px solid #dbe5ee;border-radius:.8rem;line-height:1.9}
.learning-reader__video{position:relative;aspect-ratio:16/9}
.learning-reader__video iframe{width:100%;height:100%;border:0;border-radius:.8rem}
.learning-reader__credit{color:#617387;margin-top:2rem}