/* ==========================================================================
   GitHub Trending · 报纸版式
   纸色底 / 双线规则 / 暗红点缀 / Maple Mono NF CN
   （字体在 fonts/fonts.css，已 @import；页面自身的排版一律写在这里）
   ========================================================================== */
@import url("fonts/fonts.css");

:root{
  --ink:#16130f;
  --ink-soft:#3d3730;
  --ink-light:#6b6357;
  --ink-faint:#918a7c;
  --paper:#f2ede2;
  --paper-2:#e9e2d3;
  --paper-3:#ded5c2;
  --accent:#8c1d18;
  --rule:#2a241d;
  --rule-soft:#c3baa5;
  --serif:"Maple Mono NF CN","Maple Mono NF",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:var(--serif);
  --bar-h:44px;
  --scroll-gutter:10px;          /* 自定义滚动条宽度，用于对齐右栏右边缘 */
  --lang-js:#c9a227;
  --lang-ts:#2f6fb0;
  --lang-go:#0091b3;
  --lang-rs:#b5651d;
  --lang-py:#3572a5;
  --lang-java:#b07219;
  --lang-c:#5b5b5b;
  --lang-cpp:#f34b7d;
  --lang-all:#8c1d18;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:#cfc7b4;
  background-image:radial-gradient(circle at 20% 10%,rgba(255,255,255,.35),transparent 60%),
                   radial-gradient(circle at 85% 80%,rgba(0,0,0,.06),transparent 55%);
  color:var(--ink);
  font-family:var(--serif);
  font-variant-ligatures:none;
  font-feature-settings:"calt" 0;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;border-bottom:1px solid rgba(140,29,24,.32)}
a:hover{color:var(--accent);border-bottom-color:var(--accent)}
em,i,cite,address,dfn{font-style:normal}
em{color:var(--accent);font-weight:700}
button{font-family:inherit}

/* ── 页面骨架 ───────────────────────────────────────────────────────────── */
body.index{
  padding:0;height:100vh;overflow:hidden;display:flex;flex-direction:column;
}
.app-bar{
  flex:none;display:flex;align-items:baseline;gap:16px;
  padding:13px calc(24px + var(--scroll-gutter)) 11px 22px;border-bottom:3px double var(--rule);background:var(--paper);
}
.brand{display:flex;align-items:baseline;gap:12px;font-size:30px;font-weight:800;letter-spacing:.01em;line-height:1}
.brand::before{
  content:"";width:12px;height:12px;background:var(--accent);flex:none;
  clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);transform:translateY(-4px);
}
.brand small{
  font-family:var(--sans);font-size:10.5px;font-weight:500;letter-spacing:.2em;
  color:var(--ink-light);text-transform:uppercase;
}
.bar-meta{
  margin-left:auto;font-family:var(--sans);font-size:11px;color:var(--ink-light);
  letter-spacing:.06em;white-space:nowrap;
}
.bar-meta b{color:var(--accent);font-weight:700}

.app-main{
  flex:1;min-height:0;display:grid;grid-template-columns:360px minmax(0,1fr);
  background:#cfc7b4;
  background-image:radial-gradient(circle at 20% 10%,rgba(255,255,255,.3),transparent 60%);
}
.list-col,.reader,.reader-bar,.reader-scroll{min-width:0}

.menu-btn,.drawer-head,.backdrop{display:none}

/* ── 左栏 ───────────────────────────────────────────────────────────────── */
.list-col{
  min-height:0;display:flex;flex-direction:column;
  border-right:1px solid #b3aa95;background:var(--paper);
}

/* 语言下拉 */
.lang-bar{flex:none;padding:14px 16px 12px;border-bottom:1px solid var(--rule-soft)}
.lang-bar>label{
  display:block;font-family:var(--sans);font-size:10px;font-weight:700;
  letter-spacing:.2em;color:var(--ink-light);margin-bottom:7px;text-transform:uppercase;
}
.lang-select{position:relative}
.lang-btn{
  width:100%;appearance:none;cursor:pointer;text-align:left;
  display:flex;align-items:center;gap:10px;
  background:var(--paper-2);border:1px solid var(--rule);
  border-left:4px solid var(--accent);
  padding:11px 12px;color:var(--ink);line-height:1.2;
  transition:background .15s ease;
}
.lang-btn:hover{background:#e2dac8}
.lang-btn[aria-expanded="true"]{background:#e2dac8}
.lang-btn .dot{width:11px;height:11px;border-radius:50%;flex:none;box-shadow:0 0 0 1px rgba(22,19,15,.18) inset}
.lang-btn .ln{flex:1;min-width:0;font-size:16px;font-weight:800;letter-spacing:.02em}
.lang-btn .lc{
  font-family:var(--sans);font-size:10.5px;color:var(--ink-light);
  border:1px solid var(--rule-soft);padding:1px 6px;flex:none;
}
.lang-btn .caret{
  font-size:11px;color:var(--accent);flex:none;line-height:1;
  transition:transform .18s ease;
}
.lang-btn[aria-expanded="true"] .caret{transform:rotate(180deg)}

.lang-menu{
  position:absolute;left:0;right:0;top:calc(100% + 5px);z-index:40;
  margin:0;padding:5px;list-style:none;
  background:var(--paper);border:1px solid var(--rule);
  box-shadow:0 10px 26px rgba(20,17,13,.32);
  max-height:min(56vh,420px);overflow:auto;
  opacity:0;transform:translateY(-6px);pointer-events:none;
  transition:opacity .16s ease,transform .16s ease;
}
.lang-menu.open{opacity:1;transform:none;pointer-events:auto}
.lang-menu li{display:flex;align-items:center;gap:10px;cursor:pointer;padding:9px 10px;border-left:4px solid transparent}
.lang-menu li+li{border-top:1px dotted #c9c0ab}
.lang-menu li .dot{width:10px;height:10px;border-radius:50%;flex:none;box-shadow:0 0 0 1px rgba(22,19,15,.18) inset}
.lang-menu li .ln{flex:1;font-size:14px;font-weight:700}
.lang-menu li .lc{font-family:var(--sans);font-size:10.5px;color:var(--ink-light)}
.lang-menu li:hover{background:var(--paper-2)}
.lang-menu li[aria-selected="true"]{border-left-color:var(--accent);background:var(--paper-2)}
.lang-menu li[aria-selected="true"] .ln{color:var(--accent)}

.list-head{
  flex:none;display:flex;align-items:center;justify-content:space-between;
  padding:11px 16px 9px;border-bottom:1px solid var(--rule-soft);
  font-family:var(--sans);font-size:10px;font-weight:700;letter-spacing:.18em;
  color:var(--ink-light);text-transform:uppercase;
}
.timeline{flex:1;min-height:0;overflow-y:auto;padding:10px 12px 40px}

.repo-row{
  display:flex;align-items:baseline;gap:10px;width:100%;text-align:left;
  appearance:none;font:inherit;color:inherit;cursor:pointer;
  background:transparent;border:0;border-left:3px solid transparent;
  padding:8px 10px;line-height:1.55;
}
.repo-row:hover{background:var(--paper-2);border-left-color:var(--ink-light)}
.repo-row[aria-current="true"]{background:var(--paper-2);border-left-color:var(--accent)}
.repo-row .rk{
  font-family:var(--sans);font-size:11px;font-weight:800;color:var(--ink-faint);
  min-width:20px;text-align:right;flex:none;
}
.repo-row[aria-current="true"] .rk{color:var(--accent)}
.repo-row .nm{flex:1;min-width:0;font-size:13.6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.repo-row .nm .ow{color:var(--ink-light)}
.repo-row .nm .sl{color:var(--accent);padding:0 1px}
.repo-row .nm .rp{font-weight:700}
.repo-row .st{
  font-family:var(--sans);font-size:10px;color:var(--ink-faint);flex:none;white-space:nowrap;
}
.repo-row .st b{color:var(--accent);font-weight:700}

/* ── 右栏 ───────────────────────────────────────────────────────────────── */
.reader{min-height:0;display:flex;flex-direction:column;background:var(--paper)}
.reader-bar{
  flex:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
  height:var(--bar-h);padding:0 calc(24px + var(--scroll-gutter)) 0 24px;line-height:1;
  border-bottom:1px solid var(--rule);background:var(--paper);
  font-family:var(--sans);font-size:11.5px;color:var(--ink-light);letter-spacing:.03em;
}
.reader-bar #readerTitle{min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.reader-bar #readerTitle b{color:var(--ink);font-weight:700}
.reader-bar #readerTitle .sp{color:var(--accent);padding:0 7px}
.sorts{display:flex;align-items:center;gap:0;flex:none;white-space:nowrap}
.sorts .lbl{font-size:10px;letter-spacing:.16em;color:var(--ink-light);margin-right:9px;text-transform:uppercase}
.sorts button{
  appearance:none;background:transparent;border:1px solid var(--rule-soft);
  color:var(--ink-light);cursor:pointer;padding:5px 10px;font-family:var(--sans);
  font-size:10.5px;font-weight:700;letter-spacing:.06em;line-height:1;
}
.sorts button + button{border-left:0}
.sorts button:hover{color:var(--ink)}
.sorts button[aria-pressed="true"]{
  background:var(--ink);border-color:var(--ink);color:var(--paper);
}
.sorts button .arw{color:var(--accent);font-weight:800;margin-left:4px}
.sorts button[aria-pressed="true"] .arw{color:#e8b9b4}

.reader-scroll{flex:1;min-height:0;overflow-y:auto;padding:22px 24px 48px;scrollbar-gutter:stable}

/* 版头 */
.board-head{padding:0 0 16px;border-bottom:3px double var(--rule);margin-bottom:20px}
.board-head h1{
  margin:0;display:flex;align-items:baseline;gap:12px;
  font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.05;letter-spacing:.01em;
}
.board-head h1 .cn{
  font-family:var(--sans);font-size:11px;font-weight:700;letter-spacing:.22em;
  color:#f5eff0;background:var(--accent);padding:4px 10px;align-self:center;
}
.board-head .en{
  margin-top:11px;font-family:var(--sans);font-size:11px;letter-spacing:.16em;
  color:var(--ink-light);text-transform:uppercase;
}
.board-head .en .sep{color:var(--accent);padding:0 8px}

/* 搜索框 */
.board-tools{display:flex;align-items:center;gap:14px;margin:-4px 0 18px}
.search{
  flex:1;min-width:0;display:flex;align-items:center;gap:9px;
  height:42px;padding:0 12px;
  background:var(--paper-2);border:1px solid var(--rule);
  transition:border-color .15s ease,box-shadow .15s ease;
}
.search:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px rgba(140,29,24,.12)}
.search .ic{width:16px;height:16px;flex:none;color:var(--ink-light)}
.search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-family:var(--serif);font-size:14px;color:var(--ink);letter-spacing:.01em;
}
.search input::placeholder{color:var(--ink-faint)}
.search input::-webkit-search-cancel-button{display:none}
.search .clear{
  appearance:none;border:0;background:transparent;cursor:pointer;
  color:var(--ink-light);font-size:16px;line-height:1;padding:0 2px;flex:none;
}
.search .clear:hover{color:var(--accent)}
.board-tools .result{
  flex:none;font-family:var(--sans);font-size:11px;color:var(--ink-light);
  letter-spacing:.04em;white-space:nowrap;
}
.board-tools .result b{color:var(--accent);font-weight:700}

/* 卡片 */
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.repo-card{
  display:flex;flex-direction:column;min-width:0;
  background:var(--paper-2);border:1px solid var(--rule);
  border-top:3px solid var(--rule);
  padding:16px 18px 13px;position:relative;
  transition:transform .15s ease,box-shadow .15s ease,border-top-color .15s ease;
}
.repo-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(20,17,13,.18);border-top-color:var(--accent)}
.repo-card.flash{animation:flash 1.2s ease}
@keyframes flash{0%{background:#f6e7c9}100%{background:var(--paper-2)}}
.rc-head{display:flex;align-items:flex-start;gap:10px}
.rc-rank{
  font-family:var(--sans);font-size:11px;font-weight:800;color:var(--paper);
  background:var(--ink);min-width:24px;height:24px;line-height:24px;text-align:center;
  padding:0 5px;flex:none;margin-top:2px;
}
.repo-card:nth-child(-n+3) .rc-rank{background:var(--accent)}
.rc-title{margin:0;font-size:19px;font-weight:800;line-height:1.35;flex:1;min-width:0;word-break:break-word}
.rc-title .ow{color:var(--ink-light);font-weight:500}
.rc-title .sl{color:var(--accent);padding:0 2px}
.rc-lang{
  display:inline-flex;align-items:center;gap:6px;flex:none;margin-top:3px;
  font-family:var(--sans);font-size:10px;color:var(--ink-light);letter-spacing:.04em;
}
.rc-lang .dot{width:9px;height:9px;border-radius:50%}
.rc-summary{margin:12px 0 14px;font-size:13.8px;line-height:1.92;color:var(--ink-soft);text-align:justify}
.rc-foot{
  margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;
  padding-top:10px;border-top:1px dotted #b6ac96;
  font-family:var(--sans);font-size:10.4px;color:var(--ink-faint);letter-spacing:.03em;
}
.rc-foot .stars{color:var(--ink-soft)}
.rc-foot .stars b{color:var(--accent);font-weight:800}
.rc-foot .upd{margin-left:auto;white-space:nowrap}
.rc-foot .upd b{color:var(--ink-soft);font-weight:700}

.empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;
       gap:10px;color:var(--ink-light);font-family:var(--sans);font-size:12.4px;text-align:center;line-height:2}
.empty b{font-family:var(--serif);font-size:20px;color:var(--ink);font-weight:800;letter-spacing:.04em}
.empty code{font-family:var(--serif);background:var(--paper-2);border:1px solid var(--rule-soft);padding:6px 12px;color:var(--ink)}

.reader-scroll::-webkit-scrollbar,.timeline::-webkit-scrollbar,.lang-menu::-webkit-scrollbar{width:10px}
.reader-scroll::-webkit-scrollbar-thumb,.timeline::-webkit-scrollbar-thumb,.lang-menu::-webkit-scrollbar-thumb{
  background:#bdb49f;border:3px solid transparent;background-clip:content-box;
}

/* ── 响应式 ─────────────────────────────────────────────────────────────── */
@media (max-width:1080px){.cards{grid-template-columns:minmax(0,1fr)}}
@media (max-width:900px){
  .app-bar{padding:9px 12px;gap:10px;align-items:center}
  .menu-btn{
    display:inline-flex;align-items:center;appearance:none;background:transparent;cursor:pointer;
    border:1px solid var(--rule);color:var(--ink);font-family:var(--sans);
    font-size:11px;font-weight:700;letter-spacing:.08em;padding:7px 10px;line-height:1;
  }
  .brand{font-size:21px;gap:8px}
  .brand small{display:none}
  .bar-meta{display:none}
  .app-main{grid-template-columns:minmax(0,1fr)}
  .list-col{
    position:fixed;top:0;left:0;bottom:0;z-index:30;width:min(88vw,360px);
    border-right:1px solid #b3aa95;padding-top:env(safe-area-inset-top);
    transform:translateX(-102%);transition:transform .2s ease;
    box-shadow:8px 0 30px rgba(20,17,13,.28);
  }
  body.drawer .list-col{transform:none}
  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;flex:none;
    padding:10px 14px;border-bottom:1px solid var(--rule);background:var(--paper);
    font-family:var(--sans);font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--ink-light);
  }
  .drawer-head button{appearance:none;background:transparent;border:0;cursor:pointer;color:var(--ink-light);font:inherit;font-size:18px;line-height:1;padding:0 4px}
  .backdrop{position:fixed;inset:0;z-index:20;background:rgba(20,17,13,.42)}
  body.drawer .backdrop{display:block}
  .reader-bar{padding:0 calc(12px + var(--scroll-gutter)) 0 12px}
  .reader-bar .rb-date{display:none}
  .reader-scroll{padding:14px 12px 40px}
}
@media (max-width:640px){
  .reader-bar{flex-direction:column;align-items:stretch;height:auto;min-height:var(--bar-h);padding:8px calc(12px + var(--scroll-gutter)) 8px 12px;gap:7px}
  .reader-bar #readerTitle{white-space:normal}
  .sorts{justify-content:space-between}
  .sorts .lbl{display:none}
  .sorts button{flex:1;text-align:center;padding:6px 6px}
  .board-head h1{font-size:30px;flex-wrap:wrap;gap:8px}
  .cards{gap:14px}
  .repo-card{padding:14px 14px 12px}
  .rc-title{font-size:17px}
  .rc-summary{font-size:13.4px}
}
@media (prefers-reduced-motion:reduce){.list-col{transition:none}.lang-menu{transition:none}}
@media print{
  body.index{height:auto;overflow:visible}
  .app-bar,.list-col,.reader-bar,.backdrop{display:none}
  .app-main{display:block;background:#fff}
  .reader-scroll{overflow:visible;padding:0}
  .repo-card{break-inside:avoid;box-shadow:none}
}