.mch-book-page .mch-hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,23,44,.86) 0%,rgba(9,23,44,.68) 42%,rgba(9,23,44,.22) 100%);display:flex;align-items:center}.mch-book-page .mch-hero h1{color:#fff;font-size:clamp(34px,5vw,54px);margin:0 0 12px}.mch-book-page .mch-btn-outline{background:0 0;border-color:rgba(255,255,255,.45);color:#fff}.mch-book-page .mch-btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}.mch-book-page .mch-author-box{display:flex;align-items:center;gap:14px;margin:18px 0 28px;padding:14px 16px;background:var(--mch-soft);border:1px solid var(--mch-border);border-radius:18px}.mch-book-page .mch-author-meta{font-size:15px;line-height:1.55;color:var(--mch-muted)}@media (max-width:640px){.mch-book-page .mch-author-box{align-items:flex-start}}