.history-chapter-list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; padding:24px 0; }
.history-chapter-list a { display:block; padding:20px; border:1px solid #4b5244; border-radius:5px; color:#e6d6b4; text-decoration:none; background:#222b24; }
.history-chapter-list a:hover { border-color:#d1b372; background:#2b352a; }
.history-chapter-list strong { display:block; font:600 20px/1.6 "Songti SC",serif; }
.history-chapter-list small { display:block; margin:8px 0; color:#b4bdac; font-size:12px; }
.history-chapter-list p { color:#c1cabf; font-size:14px; line-height:1.85; }
.history-chapter-list span { display:block; margin-top:16px; color:#dec38e; font-size:13px; }
.history-topic-boundary { font-size:13px; line-height:1.8; color:#b5baa8; padding-bottom:12px; }
.history-topic-return { position:fixed; z-index:90; bottom:80px; left:20px; max-width:calc(100vw - 40px); padding:10px 16px; border:1px solid #c7ab6e; border-radius:5px; color:#eddbb0; background:#202a22; font:14px/1.7 "PingFang SC",sans-serif; box-shadow:0 4px 16px #0008; }
body.axial-reading-active .history-topic-return { display:none; }
@media(max-width:600px){.history-chapter-list { grid-template-columns:minmax(0,1fr); gap:12px; }.history-chapter-list a { padding:16px; }.history-topic-return { bottom:94px; font-size:12px; }}