.pdf-intro{max-width:700px;margin:24px auto 0;color:var(--muted)}.real-cover{position:relative;overflow:hidden;max-width:245px;width:100%;aspect-ratio:1244/1760;box-shadow:7px 10px 17px #3d4e3820;border-radius:2px}.real-cover img{position:absolute;width:105.4%;max-width:none;left:-2.7%;top:-6.5%;height:auto}.real-materials{align-items:start}.real-materials .paper{max-width:245px;aspect-ratio:1244/1760}.real-materials>article>.micro{display:block;margin-top:12px}@media(max-width:600px){.real-cover{max-width:120px;grid-row:1/3}.real-materials .paper{max-width:120px}.real-materials>article>.micro{grid-column:2;margin-top:8px}}
.real-cover.clean-cover img{position:static;width:100%;height:100%;object-fit:fill}.teacher{align-items:center}
