.desktop-chapter-rail{display:none}@media(min-width:1180px){body{--desktop-rail-width:176px}body>main{margin-left:176px;width:calc(100% - 176px)}.desktop-chapter-rail{position:fixed;inset:0 auto 0 0;z-index:120;width:176px;display:flex;flex-direction:column;padding:28px 18px 24px;color:#f5efe1;background:linear-gradient(180deg,#082e29,#0a3a33 55%,#062722);box-shadow:inset -1px 0 rgba(231,214,176,.16),18px 0 46px rgba(0,24,20,.16)}.desktop-chapter-rail__brand{display:block;padding:3px 7px 24px;border-bottom:1px solid rgba(231,214,176,.18)}.desktop-chapter-rail__brand small{display:block;color:#d9aa62;font:700 9px/1.4 Arial,sans-serif;letter-spacing:.2em}.desktop-chapter-rail__brand strong{display:block;margin-top:8px;font:500 19px/1.25 Georgia,serif}.desktop-chapter-rail nav{display:grid;gap:4px;margin:auto 0;padding:20px 0}.desktop-chapter-rail nav a{display:grid;grid-template-columns:28px 1fr;align-items:center;gap:9px;min-height:53px;padding:7px 8px;border-radius:13px;color:rgba(241,239,227,.72)}.desktop-chapter-rail nav a b{color:#d9aa62;font:italic 500 15px/1 Georgia,serif}.desktop-chapter-rail nav a span{font:500 12px/1.3 "Microsoft YaHei",sans-serif;white-space:nowrap}.desktop-chapter-rail nav a.is-active{color:#fff;background:rgba(255,255,255,.09)}.desktop-chapter-rail__foot{padding:18px 7px 2px;border-top:1px solid rgba(231,214,176,.18);color:#eee2c8;font:600 9px/1.6 Arial,sans-serif;letter-spacing:.1em}}