.course-book-page{padding:1.5rem 1rem 3.5rem;overflow-x:clip;min-width:0}.course-book-page-inner{width:min(100%,720px);margin:0 auto;display:grid;gap:1.15rem;min-width:0}.course-book-back{margin:0;font-size:.9rem}.course-book-back a{color:#0369a1;text-decoration:none;font-weight:600}.course-book-title{margin:0;font-size:clamp(1.35rem,4vw,1.75rem);line-height:1.2;color:#0f172a}.course-book-lead{margin:0;font-size:.95rem;line-height:1.5;color:#475569}.course-book-status{display:grid;gap:.65rem;min-width:0;padding:.9rem;border:1px solid #e2e8f0;border-radius:14px;background:#fff}.course-book-status h2{margin:0;font-size:1rem;color:#0f172a}.course-book-note{margin:0;font-size:.9rem;line-height:1.5;color:#64748b}@media (max-width:720px){.course-book-page{padding:1rem .75rem calc(3rem + env(safe-area-inset-bottom, 0px))}.course-book-status{padding:.75rem;border-radius:12px}}