.PBir6q_page{max-width:980px}.PBir6q_back{color:var(--muted);font-size:.9rem}.PBir6q_heading{max-width:680px;margin-block:2.5rem 2rem}.PBir6q_heading h1{letter-spacing:-.04em;margin-block:.7rem 1rem;font-size:clamp(2rem,5vw,3.4rem);line-height:1.12}.PBir6q_heading p{color:var(--muted);line-height:1.7}.PBir6q_heading .PBir6q_course{color:var(--ink);font-size:1.15rem;font-weight:600}.PBir6q_summary{border-block:1px solid var(--line);align-items:center;gap:1.5rem;padding-block:1.7rem;display:flex}.PBir6q_summary strong{font-size:2rem;font-weight:600}.PBir6q_summary small{color:var(--muted);font-size:1rem;font-weight:400}.PBir6q_summary span{color:var(--muted)}.PBir6q_list{margin:0;padding:0;list-style:none}.PBir6q_list li{border-bottom:1px solid var(--line);padding-block:2rem}.PBir6q_row{align-items:center;gap:.85rem;display:flex}.PBir6q_row h2{overflow-wrap:anywhere;margin:0 0 .3rem;font-size:1rem}.PBir6q_row time{color:var(--muted);font-size:.8rem}.PBir6q_avatar{background:var(--paper);border:1px solid var(--line);border-radius:50%;flex-shrink:0;place-items:center;width:2.7rem;height:2.7rem;display:grid}.PBir6q_rating{white-space:nowrap;margin-left:auto;font-size:.9rem}.PBir6q_rating span{color:#856019}.PBir6q_body{white-space:pre-wrap;overflow-wrap:anywhere;margin:1.3rem 0 0;line-height:1.8}.PBir6q_pagination{flex-wrap:wrap;justify-content:space-between;gap:1.5rem;margin-block:2rem;display:flex}.PBir6q_pagination a,.PBir6q_empty a{text-underline-offset:.25em;text-decoration:underline}.PBir6q_privacy{max-width:660px;color:var(--muted);font-size:.85rem;line-height:1.7}.PBir6q_empty{padding-block:2rem;line-height:1.7}.PBir6q_empty h2{font-size:1.2rem}@media (max-width:480px){.PBir6q_summary{flex-direction:column;align-items:flex-start;gap:.5rem}.PBir6q_row{gap:.6rem}.PBir6q_avatar{display:none}}