:root{
  --bg:#f6f1e7; --paper:#fffdf8; --paper-2:#fbf7ee;
  --ink:#2f2b25; --ink-2:#6d6558; --ink-3:#9a9182;
  --line:#e4dbc9; --line-2:#efe7d8;
  --accent:#a33a2f; --accent-soft:#f3e6e1; --accent-ink:#8d3228;
  --shadow:0 1px 3px rgba(80,64,40,.06),0 8px 24px rgba(80,64,40,.05);
  --serif:"Songti SC","STSong","SimSun","Noto Serif CJK SC","Source Han Serif SC","Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  --read-size:20px;
}
body[data-theme="dark"]{
  --bg:#191817; --paper:#232120; --paper-2:#1e1c1b;
  --ink:#e7dfd0; --ink-2:#b4ab9c; --ink-3:#877f72;
  --line:#383431; --line-2:#2d2a27;
  --accent:#d98a73; --accent-soft:#3a2b27; --accent-ink:#e9a58e;
  --shadow:0 1px 3px rgba(0,0,0,.25),0 8px 24px rgba(0,0,0,.2);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); font-family:var(--sans);
  font-size:15px; line-height:1.6; -webkit-text-size-adjust:100%;
  overscroll-behavior-y:contain;
}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
#app{max-width:760px;margin:0 auto;min-height:100vh;padding:0 14px calc(28px + env(safe-area-inset-bottom))}

/* ---------- top bar ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 2px 12px}
.brand{display:flex;align-items:center;gap:11px;text-align:left;padding:0}
.seal{
  width:38px;height:38px;flex:none;border-radius:7px;background:var(--accent);color:#fff;
  display:grid;place-items:center;font-family:var(--serif);font-size:23px;line-height:1;
  box-shadow:0 2px 8px rgba(163,58,47,.22)
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:2px}
.brand-text small{color:var(--ink-3);font-size:11px;letter-spacing:1px;margin-top:2px}
.top-actions{display:flex;gap:6px}
.icon-btn{
  min-width:40px;height:40px;padding:0 9px;border-radius:9px;color:var(--ink-2);
  font-size:17px;display:inline-grid;place-items:center;border:1px solid transparent
}
.icon-btn:hover,.icon-btn:active{background:var(--paper);border-color:var(--line)}
.icon-btn.on{color:var(--accent);background:var(--accent-soft);border-color:var(--accent-soft)}

/* ---------- sticky search zone ---------- */
.sticky-zone{position:sticky;top:0;z-index:20;background:var(--bg);padding:6px 0 8px;border-bottom:1px solid var(--line-2)}
.searchbar{
  display:flex;align-items:center;gap:6px;background:var(--paper);
  border:1px solid var(--line);border-radius:12px;padding:5px 6px 5px 12px;box-shadow:var(--shadow)
}
.search-ico{font-size:20px;color:var(--ink-3);line-height:1;flex:none}
#q{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:15px;height:36px;padding:0}
#q::placeholder{color:var(--ink-3)}
#q::-webkit-search-cancel-button{display:none}
.clear-btn{width:30px;height:30px;flex:none;color:var(--ink-3);font-size:20px;border-radius:50%}
.clear-btn[hidden]{display:none}
.search-btn{
  flex:none;height:36px;padding:0 15px;border-radius:9px;background:var(--accent);
  color:#fff;font-size:14px;letter-spacing:1px
}
body[data-theme="dark"] .search-btn{color:#1b1715}
.search-btn:active{opacity:.82}

.chips{display:flex;gap:7px;overflow-x:auto;padding:10px 0 4px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:none;white-space:nowrap;padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper);color:var(--ink-2);font-size:13px
}
.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
body[data-theme="dark"] .chip.on{color:#1b1715}
.chip small{opacity:.65;margin-left:4px;font-size:11px}

.subbar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 2px 0;min-height:30px}
#statusText{font-size:12px;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sub-actions{display:flex;gap:12px;flex:none}
.link-btn{font-size:13px;color:var(--ink-2);padding:2px 0}
.link-btn.primary{color:var(--accent);font-weight:600}

/* ---------- list ---------- */
#list{padding-top:10px}
.card{
  display:block;width:100%;text-align:left;background:var(--paper);
  border:1px solid var(--line-2);border-radius:12px;padding:13px 15px;margin-bottom:9px;
  box-shadow:var(--shadow);transition:transform .12s ease,border-color .12s
}
.card:active{transform:scale(.995);border-color:var(--line)}
.card-title{font-family:var(--serif);font-size:18px;font-weight:600;line-height:1.45;letter-spacing:.5px;word-break:break-all}
.card-meta{display:flex;align-items:center;gap:8px;margin-top:5px;flex-wrap:wrap}
.card-author{font-size:12px;color:var(--accent-ink)}
.tag{font-size:10px;color:var(--ink-3);border:1px solid var(--line);border-radius:4px;padding:1px 5px;line-height:1.4}
.card-line{
  margin-top:7px;font-family:var(--serif);font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
}
.card .hit{background:var(--accent-soft);color:var(--accent-ink);border-radius:2px}
.empty{text-align:center;color:var(--ink-3);padding:52px 16px;font-family:var(--serif);font-size:15px;line-height:2}
.more-wrap{display:flex;justify-content:center;padding:14px 0 6px}
.more-btn{
  min-height:42px;padding:0 26px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink-2);font-size:14px
}
.more-btn[hidden]{display:none}
.site-foot{text-align:center;color:var(--ink-3);font-size:11px;line-height:1.9;padding:22px 0 8px}
.site-foot p{margin:0}

/* ---------- detail ---------- */
.detail{
  position:fixed;inset:0;z-index:50;background:var(--bg);overflow:auto;
  display:flex;flex-direction:column;padding-bottom:env(safe-area-inset-bottom)
}
.detail[hidden]{display:none}
.detail-head{
  position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:8px;padding:calc(8px + env(safe-area-inset-top)) 10px 8px;
  background:var(--bg);border-bottom:1px solid var(--line-2)
}
.detail-actions{display:flex;gap:2px;flex-wrap:wrap;justify-content:flex-end}
.detail-actions .icon-btn{font-size:13px;min-width:36px;height:36px;padding:0 7px}
.detail-body{
  flex:1;width:100%;max-width:760px;margin:0 auto;padding:30px 22px 40px;
  font-family:var(--serif);font-size:var(--read-size);line-height:2.05;color:var(--ink)
}
.detail-body .d-title{text-align:center;font-size:1.45em;font-weight:700;letter-spacing:2px;line-height:1.5;margin:0 0 6px}
.detail-body .d-author{text-align:center;font-size:.68em;color:var(--ink-2);letter-spacing:2px;margin-bottom:4px}
.detail-body .d-extra{text-align:center;font-size:.6em;color:var(--ink-3);margin-bottom:26px}
.detail-body .d-rule{width:46px;height:1px;background:var(--accent);opacity:.5;margin:0 auto 26px}
.detail-body .d-group{text-align:center;font-size:.58em;color:var(--ink-3);letter-spacing:2px;margin-top:30px}
.detail-body .d-para{text-align:center;margin:0 0 .18em;word-break:break-all;white-space:pre-wrap}
.detail-body .d-copy{margin-top:26px;text-align:center;font-size:.55em;color:var(--ink-3);font-family:var(--sans)}

/* vertical reading */
.detail-body.vertical{
  writing-mode:vertical-rl;text-orientation:mixed;line-height:1.9;
  padding:24px 20px;max-width:none;width:100%;overflow-x:auto;overflow-y:hidden;
  height:calc(100vh - 116px);flex:none
}
.detail-body.vertical .d-title{margin:0 0 0 18px;font-size:1.25em}
.detail-body.vertical .d-author,.detail-body.vertical .d-extra,.detail-body.vertical .d-group,
.detail-body.vertical .d-copy{text-align:start;margin:0 0 0 10px}
.detail-body.vertical .d-rule{display:none}
.detail-body.vertical .d-para{margin:0 0 0 .35em;text-align:start}

.detail-foot{
  position:sticky;bottom:0;display:flex;align-items:center;justify-content:space-between;gap:6px;
  padding:9px 12px calc(9px + env(safe-area-inset-bottom));
  background:var(--bg);border-top:1px solid var(--line-2)
}
.detail-foot span{font-size:11px;color:var(--ink-3);font-family:var(--sans)}
.nav-btn{min-height:40px;padding:0 12px;border-radius:9px;background:var(--paper);border:1px solid var(--line);font-size:13px;color:var(--ink-2)}
.nav-btn:disabled{opacity:.35}

/* ---------- progress & toast ---------- */
.progress{
  position:fixed;left:50%;bottom:calc(26px + env(safe-area-inset-bottom));transform:translateX(-50%);
  z-index:80;width:min(92vw,420px);background:var(--paper);border:1px solid var(--line);
  border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.16);padding:12px 14px;
  display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-2)
}
.progress[hidden]{display:none}
.progress-line{flex:1;height:5px;background:var(--line-2);border-radius:99px;overflow:hidden;min-width:60px}
.progress-line i{display:block;height:100%;width:0;background:var(--accent);transition:width .15s}
.progress span{white-space:nowrap;flex:none}
.toast{
  position:fixed;left:50%;bottom:calc(80px + env(safe-area-inset-bottom));transform:translateX(-50%);
  z-index:90;background:rgba(43,39,34,.94);color:#fff;padding:9px 18px;border-radius:999px;
  font-size:13px;white-space:nowrap;box-shadow:0 6px 20px rgba(0,0,0,.2)
}
.toast[hidden]{display:none}

@media (min-width:600px){
  #app{padding-left:24px;padding-right:24px}
  .card{padding:15px 18px}
  .card-title{font-size:19px}
  .detail-body{padding:44px 30px 56px}
}
@media (max-width:360px){
  .brand-text strong{font-size:19px}
  .detail-actions .icon-btn{min-width:32px;padding:0 5px;font-size:12px}
  .search-btn{padding:0 11px}
}
/* ---------- pinyin & annotations ---------- */
ruby{ruby-align:center}
rt{font-family:var(--sans);font-size:.42em;font-weight:400;line-height:1.1;letter-spacing:0;color:var(--ink-3)}
.detail-body.with-pinyin .d-para{line-height:2.75}
.detail-body.vertical rt{display:none}
.anno-box{max-width:620px;margin:36px auto 0;font-family:var(--sans);font-size:13px;line-height:1.85;color:var(--ink-2)}
.anno-box .anno-sec{border-top:1px solid var(--line-2);padding:14px 2px 0;margin-bottom:16px}
.anno-box .anno-sec h3{font-size:13px;font-weight:600;color:var(--accent-ink);letter-spacing:1px;margin:0 0 7px}
.anno-box .anno-sec p{margin:0;white-space:pre-wrap;word-break:break-word}
.anno-box .anno-score{display:inline-block;font-size:11px;color:var(--accent-ink);background:var(--accent-soft);border-radius:999px;padding:3px 11px;margin-bottom:12px}
.anno-box .anno-src{text-align:center;font-size:11px;color:var(--ink-3);line-height:1.8;padding:8px 0 4px}
.anno-box .anno-pending{text-align:center;font-size:12px;color:var(--ink-3);padding:10px}
.detail-body.vertical .anno-box{display:none}

@media (prefers-reduced-motion:reduce){*{transition:none!important}}