:root{
  --paper:#f6f1e7; --paper-2:#efe8da; --ink:#22201c; --ink-2:#5b5549; --ink-3:#8b8373;
  --rule:#d8cfbd; --accent:#8a2f25; --accent-soft:rgba(138,47,37,.08);
  --serif:"Songti SC","STSong","Noto Serif SC","Noto Serif CJK SC","Source Han Serif SC","Source Han Serif","Noto Serif TC","Songti TC",serif;
  --measure:56rem;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);
  font-size:17px;line-height:1.7;font-feature-settings:"palt" 0;-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:var(--measure);margin:0 auto;padding:0 2rem}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 题头 */
.masthead{padding-top:5.5rem;padding-bottom:2.5rem;text-align:center}
.kicker{margin:0;font-size:.78rem;letter-spacing:.42em;color:var(--accent);text-indent:.42em}
h1{margin:.9rem 0 .4rem;font-weight:600;font-size:clamp(2.1rem,5.4vw,3.3rem);letter-spacing:.16em;text-indent:.16em;line-height:1.25}
.subtitle{margin:0;color:var(--ink-2);font-size:1.02rem;letter-spacing:.08em}
.ornament{display:flex;align-items:center;justify-content:center;gap:.9rem;margin:2.2rem auto 0;color:var(--accent);max-width:18rem}
.ornament::before,.ornament::after{content:"";flex:1;height:1px;background:var(--rule)}
.ornament span{width:6px;height:6px;transform:rotate(45deg);border:1px solid var(--accent)}
.note{max-width:38rem;margin:2rem auto 0;color:var(--ink-2);font-size:.92rem;line-height:1.95;text-align:justify}

/* 筛选 */
.controls{border-top:1px solid var(--ink);border-bottom:1px solid var(--rule);padding:1.3rem 0 1.1rem;margin-top:1.5rem}
.row{display:flex;align-items:baseline;gap:1.2rem;margin:.35rem 0}
.row-label{flex:none;width:3.2em;font-size:.82rem;color:var(--ink-3);letter-spacing:.2em}
.chips{display:flex;flex-wrap:wrap;gap:.25rem 1.15rem}
.chip{appearance:none;background:none;border:0;padding:.15rem 0;font:inherit;font-size:.93rem;color:var(--ink-2);cursor:pointer;border-bottom:1px solid transparent}
.chip:hover{color:var(--ink)}
.chip[aria-pressed="true"]{color:var(--accent);border-bottom-color:var(--accent)}
.chip .n{font-size:.75em;color:var(--ink-3);margin-left:.2em;font-variant-numeric:tabular-nums}
.chip[aria-pressed="true"] .n{color:var(--accent)}
.search{display:flex;align-items:center;gap:1.2rem;margin-top:.7rem}
.search input{flex:1;min-width:0;font:inherit;font-size:.95rem;color:var(--ink);background:transparent;border:0;border-bottom:1px solid var(--rule);padding:.35rem 0;border-radius:0;outline:none}
.search input:focus{border-bottom-color:var(--ink)}
.search input::placeholder{color:var(--ink-3)}
.status{font-size:.82rem;color:var(--ink-3);white-space:nowrap;font-variant-numeric:tabular-nums}

/* 目录 */
.toc{list-style:none;margin:0;padding:0}
.entry{display:grid;grid-template-columns:3.6rem 1fr auto;gap:0 1.2rem;align-items:baseline;padding:1.05rem 0;border-bottom:1px solid var(--rule)}
.entry[hidden]{display:none}
.rank{font-size:1.35rem;color:var(--accent);font-variant-numeric:tabular-nums oldstyle-nums;text-align:right;line-height:1.3}
.title{margin:0;font-size:1.12rem;font-weight:600;line-height:1.45}
.title a{text-decoration:none;background-image:linear-gradient(var(--ink),var(--ink));background-size:0 1px;background-repeat:no-repeat;background-position:0 100%;transition:background-size .25s}
.title a:hover{background-size:100% 1px}
.paid{color:var(--accent);font-size:.72rem;font-weight:400;margin-left:.4em;letter-spacing:.1em;vertical-align:.15em;opacity:.85}
.meta{margin:.15rem 0 0;font-size:.85rem;color:var(--ink-3)}
.meta .author{color:var(--ink-2)}
.meta i{font-style:normal;margin:0 .45em;color:var(--rule)}
.subs{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.subs b{display:block;font-weight:600;font-size:1.02rem;line-height:1.3}
.subs small{font-size:.72rem;color:var(--ink-3);letter-spacing:.15em}
.entry.editor{border-top:1px solid var(--ink);margin-top:2.2rem;border-bottom:1px solid var(--ink)}
.entry.editor .rank{font-size:.78rem;letter-spacing:.1em;color:var(--ink-3);writing-mode:horizontal-tb;padding-top:.3rem}
.empty{padding:3rem 0;text-align:center;color:var(--ink-3)}

/* 页脚 */
footer.wrap{margin-top:4.5rem;padding-top:2.2rem;padding-bottom:3.5rem;border-top:1px solid var(--rule);text-align:center;font-size:.83rem;color:var(--ink-3);line-height:2}
footer p{margin:0}
footer a{color:var(--ink-2);text-decoration:none;border-bottom:1px solid var(--rule)}
footer a:hover{color:var(--accent);border-color:var(--accent)}

@media (max-width:640px){
  body{font-size:16px}
  .wrap{padding:0 1.2rem}
  .masthead{padding-top:3.4rem;padding-bottom:1.6rem}
  h1{letter-spacing:.08em;text-indent:.08em}
  .note{font-size:.88rem}
  .controls{margin-top:2rem}
  .row{flex-direction:column;gap:.2rem;margin:.6rem 0}
  .chips{gap:.2rem .95rem}
  .entry{grid-template-columns:2.4rem 1fr;gap:0 .8rem;padding:.95rem 0}
  .rank{font-size:1.1rem}
  .title{font-size:1.03rem}
  .subs{grid-column:2;text-align:left;margin-top:.25rem}
  .subs b{display:inline;font-size:.88rem}
  .subs small{margin-left:.4em}
}
@media print{.controls{display:none}.entry[hidden]{display:grid}}
.nw{white-space:nowrap}
/* 站内导航 */
.topnav{display:flex;justify-content:flex-end;gap:.6rem;padding-top:1.4rem;font-size:.82rem;letter-spacing:.12em;color:var(--ink-3)}
.topnav a{text-decoration:none;color:var(--ink-2);border-bottom:1px solid transparent}
.topnav a:hover{color:var(--accent)}
.topnav a[aria-current="page"]{color:var(--accent);border-bottom-color:var(--accent)}
.topnav i{font-style:normal;color:var(--rule)}
.topnav + .masthead{padding-top:3.6rem}
.note a{color:var(--accent);text-decoration:none;border-bottom:1px solid currentColor}
/* 正文页 */
.page-title{font-size:clamp(1.8rem,4.4vw,2.5rem)}
.prose{max-width:38rem;border-top:1px solid var(--ink);padding-top:.6rem}
.prose h2{font-size:1.05rem;font-weight:600;letter-spacing:.14em;color:var(--accent);margin:2.2rem 0 .6rem}
.prose p,.prose li{text-align:justify;line-height:1.95;color:var(--ink)}
.prose p{margin:0 0 .9rem}
.prose ol,.prose ul{margin:0 0 .9rem;padding-left:1.6em}
.prose li{margin:.25rem 0}
.prose ul{list-style:none;padding-left:0}
.prose ul li::before{content:"";display:inline-block;width:5px;height:5px;margin:0 .8em .2em .2em;transform:rotate(45deg);border:1px solid var(--accent)}
.prose a{color:var(--accent);text-decoration:none;border-bottom:1px solid currentColor}
.prose .back{margin-top:2.6rem;padding-top:1rem;border-top:1px solid var(--rule)}
@media (max-width:640px){.topnav{padding-top:1rem}.topnav + .masthead{padding-top:2.4rem}.prose{padding-left:1.2rem;padding-right:1.2rem}}
/* v3：首屏压紧 */
.topnav + .masthead.home{padding-top:1.2rem;padding-bottom:0}
.masthead.home h1{font-size:clamp(1.7rem,3.6vw,2.3rem);letter-spacing:.12em;text-indent:.12em;margin:0 0 .35rem}
.masthead.home .note{margin:0 auto;max-width:none;text-align:center;font-size:.9rem;line-height:1.7}
.masthead.home + main .controls{margin-top:1.3rem;border-top-width:1px;padding:.7rem 0 .6rem}
.controls .row{margin:.15rem 0}
.chips{gap:.1rem .95rem}
.chip{font-size:.88rem}
.search{margin-top:.35rem}
/* v3：整行可点 */
.entry{position:relative;padding-right:.6rem;box-shadow:inset 2px 0 0 transparent;transition:background-color .15s,box-shadow .15s}
.entry:hover,.entry:focus-within{background:var(--paper-2);box-shadow:inset 2px 0 0 var(--accent);cursor:pointer}
.entry:hover .title a,.entry:focus-within .title a{color:var(--accent)}
.title a::after{content:"";position:absolute;inset:0;z-index:1}
.title a:focus{outline:none}
.title a:focus-visible::after{outline:2px solid var(--accent);outline-offset:-2px}
.title a{background-image:none}
.paid{position:relative;z-index:2}
@media (max-width:640px){
  .topnav + .masthead.home{padding-top:.8rem}
  .masthead.home h1{font-size:1.65rem;letter-spacing:.06em;text-indent:.06em}
  .masthead.home .note{font-size:.85rem;text-align:left}
  .masthead.home + main .controls{margin-top:.9rem}
  .controls .row{flex-direction:row;gap:.6rem;margin:.3rem 0}
  .row-label{width:2.4em}
  .chips{gap:.05rem .8rem}
  .chip{font-size:.85rem;padding:.05rem 0}
  .entry{padding-top:.8rem;padding-bottom:.8rem}
}
.masthead.home + main .controls{border-bottom:0;padding-bottom:.2rem}