.nv-progress{position:fixed;left:0;top:0;width:100%;height:2px;z-index:60;background:transparent;pointer-events:none}
.nv-progress i{display:block;height:100%;width:0;background:var(--accent,#9a3412);transition:width .1s linear}
.nv-hero{padding:84px 0 60px;border-bottom:1px solid var(--line);text-align:center;background:linear-gradient(180deg,var(--bg-soft,#faf7f2),var(--bg,#fff))}
.nv-kicker{margin:0 0 14px;font-size:12px;letter-spacing:.3em;color:var(--accent,#9a3412)}
.nv-title{margin:0 0 20px;font-family:var(--font-serif-cn);font-size:clamp(38px,6vw,58px);font-weight:400;color:var(--ink,#1c1917)}
.nv-sub{margin:0 auto 22px;max-width:640px;font-size:15.5px;line-height:2;color:var(--ink-2,#57534e)}
.nv-meta{margin:0 0 30px;font-size:13px;color:var(--ink-3,#8a8178)}
.nv-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.nv-btn{display:inline-block;padding:11px 26px;border-radius:999px;font-size:15px;border:1px solid var(--line,#e7e1d8);background:var(--bg,#fff);color:var(--ink,#1c1917);transition:all .16s}
.nv-btn:hover{border-color:var(--accent,#9a3412);color:var(--accent,#9a3412)}
.nv-btn-main{background:var(--accent,#9a3412);border-color:var(--accent,#9a3412);color:#fff}
.nv-btn-main:hover{color:#fff;opacity:.9;transform:translateY(-1px)}
.nv-btn-resume[hidden]{display:none}
.nv-catalog{padding:56px 0 20px}
.nv-vol{margin-bottom:46px}
.nv-vol-head{display:flex;align-items:baseline;gap:12px;padding-bottom:12px;margin-bottom:18px;border-bottom:1px solid var(--line,#e7e1d8)}
.nv-vol-title{margin:0;font-family:var(--font-serif-cn);font-size:22px;font-weight:400;color:var(--ink,#1c1917)}
.nv-vol-count{font-size:12.5px;color:var(--ink-3,#8a8178)}
.nv-vol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px 18px}
.nv-ch{display:flex;gap:10px;align-items:baseline;padding:9px 12px;border-radius:8px;font-size:14.5px;color:var(--ink-2,#57534e);transition:background .14s,color .14s}
.nv-ch:hover{background:var(--accent-soft,#fdf2ec);color:var(--accent,#9a3412)}
.nv-ch-n{flex:none;font-size:13px;color:var(--ink-3,#8a8178)}
.nv-ch-t{min-width:0}
.nv-reading main{padding-bottom:40px}
.nv-article{max-width:720px;padding-top:52px}
.nv-crumb{margin:0 0 18px;font-size:13px;color:var(--ink-3,#8a8178)}
.nv-crumb a{color:var(--ink-2,#57534e)}
.nv-crumb a:hover{color:var(--accent,#9a3412)}
.nv-sep{margin:0 8px}
.nv-chapter-head{padding-bottom:26px;margin-bottom:34px;border-bottom:1px solid var(--line,#e7e1d8)}
.nv-chapter-title{margin:0 0 12px;font-family:var(--font-serif-cn);font-size:clamp(26px,3.6vw,34px);font-weight:400;line-height:1.4;color:var(--ink,#1c1917)}
.nv-title-gap{display:block;height:6px}
.nv-chapter-meta{margin:0;font-size:12.5px;color:var(--ink-3,#8a8178)}
.nv-body{font-size:17px;line-height:2.05;color:var(--ink-2,#57534e);letter-spacing:.02em}
.nv-body p{margin:0 0 1.35em;text-indent:2em}
.nv-body p:first-child{text-indent:0}
.nv-body strong{color:var(--ink,#1c1917)}
.nv-pager{display:flex;align-items:stretch;gap:12px;margin:56px 0 0;padding-top:26px;border-top:1px solid var(--line,#e7e1d8)}
.nv-pg{flex:1;padding:14px 16px;border:1px solid var(--line,#e7e1d8);border-radius:10px;font-size:14.5px;color:var(--ink-2,#57534e);background:var(--bg,#fff)}
a.nv-pg:hover{border-color:var(--accent,#9a3412);color:var(--accent,#9a3412)}
.nv-pg-empty{flex:1;padding:14px 16px;font-size:13.5px;color:var(--ink-3,#8a8178);border:1px dashed var(--line,#e7e1d8);border-radius:10px}
.nv-pg-next{text-align:right}
.nv-pg-label{display:block;font-size:12px;color:var(--ink-3,#8a8178);margin-bottom:5px}
.nv-pg-cat{flex:none;align-self:center;padding:12px 20px;border:1px solid var(--line,#e7e1d8);border-radius:999px;font-size:14px;color:var(--ink-2,#57534e)}
.nv-pg-cat:hover{border-color:var(--accent,#9a3412);color:var(--accent,#9a3412)}
.nv-tools{position:fixed;right:20px;bottom:20px;z-index:50;display:flex;flex-direction:column;gap:8px}
.nv-tool{width:52px;height:52px;border-radius:50%;border:1px solid var(--line,#e7e1d8);background:rgba(255,255,255,.92);backdrop-filter:blur(6px);color:var(--ink-2,#57534e);font-size:13px;cursor:pointer;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.nv-tool:hover{border-color:var(--accent,#9a3412);color:var(--accent,#9a3412)}
.nv-drawer{position:fixed;inset:0;z-index:80;visibility:hidden;opacity:0;transition:opacity .2s}
.nv-drawer.on{visibility:visible;opacity:1}
.nv-drawer-mask{position:absolute;inset:0;background:rgba(28,25,23,.34)}
.nv-drawer-panel{position:absolute;right:0;top:0;bottom:0;width:330px;max-width:86vw;background:var(--bg,#fff);display:flex;flex-direction:column;box-shadow:-6px 0 24px rgba(0,0,0,.1)}
.nv-drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line,#e7e1d8);font-size:15px}
.nv-drawer-close{border:0;background:transparent;font-size:22px;line-height:1;color:var(--ink-3,#8a8178);cursor:pointer}
.nv-drawer-list{flex:1;overflow-y:auto;padding:12px 0 40px}
.nv-drawer-list a{display:block;padding:9px 20px;font-size:14.5px;color:var(--ink-2,#57534e)}
.nv-drawer-list a:hover{background:var(--accent-soft,#fdf2ec)}
.nv-drawer-list a.cur{color:var(--accent,#9a3412);font-weight:500;background:var(--accent-soft,#fdf2ec)}
.nv-drawer-vol{padding:16px 20px 6px;font-size:12px;letter-spacing:.08em;color:var(--ink-3,#8a8178)}
@media(max-width:820px){.nv-vol-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){
 .nv-hero{padding:56px 0 40px}.nv-sub{font-size:15px;line-height:1.9}
 .nv-vol-grid{grid-template-columns:1fr;gap:4px}
 .nv-article{padding-top:34px}
 .nv-body{font-size:16.5px;line-height:1.95}
 .nv-pager{flex-wrap:wrap}.nv-pg,.nv-pg-empty{flex:1 1 40%}
 .nv-pg-cat{order:3;flex:1 1 100%;text-align:center}
 .nv-tools{right:12px;bottom:14px}
 .nv-tool{width:46px;height:46px;font-size:12px}
}
.nv-back{margin:0 0 18px;font-size:13px;color:var(--ink-3,#8a8178)}
.nv-back a{color:var(--ink-2,#57534e)}
.nv-back a:hover{color:var(--accent,#9a3412)}
.nv-hero-shelf{padding-bottom:44px}
.nv-shelf{padding:48px 0 20px}
.nv-shelf-head{display:flex;align-items:baseline;gap:12px;padding-bottom:12px;margin-bottom:22px;border-bottom:1px solid var(--line,#e7e1d8)}
.nv-shelf-title{margin:0;font-family:var(--font-serif-cn);font-size:22px;font-weight:400;color:var(--ink,#1c1917)}
.nv-shelf-count{font-size:12.5px;color:var(--ink-3,#8a8178)}
.nv-shelf-grid{display:grid;grid-template-columns:1fr;gap:18px}
.nv-book{display:flex;gap:22px;padding:22px;border:1px solid var(--line,#e7e1d8);border-radius:12px;background:var(--bg,#fff);transition:border-color .16s,box-shadow .16s}
.nv-book:hover{border-color:var(--accent,#9a3412);box-shadow:0 4px 18px rgba(154,52,18,.08)}
.nv-book-cover{flex:none;width:92px;height:124px;border-radius:6px;background:linear-gradient(160deg,#9a3412,#7c2d12);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 3px 10px rgba(0,0,0,.12)}
.nv-book-cover-cn{font-family:var(--font-serif-cn);font-size:38px}
.nv-book-info{display:flex;flex-direction:column;min-width:0}
.nv-book-title{font-family:var(--font-serif-cn);font-size:22px;color:var(--ink,#1c1917);margin-bottom:8px}
.nv-book-desc{font-size:14px;line-height:1.85;color:var(--ink-2,#57534e);margin-bottom:10px}
.nv-book-meta{font-size:12.5px;color:var(--ink-3,#8a8178);margin-bottom:12px}
.nv-book-go{font-size:14px;color:var(--accent,#9a3412)}
.nv-shelf-note{margin:26px 0 0;font-size:13px;color:var(--ink-3,#8a8178);text-align:center}
@media(max-width:620px){
 .nv-shelf{padding:32px 0 12px}
 .nv-book{padding:16px;gap:16px}
 .nv-book-cover{width:74px;height:100px}
 .nv-book-cover-cn{font-size:30px}
 .nv-book-title{font-size:19px}
 .nv-book-desc{font-size:13.5px}
}