/* ==================================================================
   冰蓝主题 · 玻璃拟态
   —— 底色：极光渐变；卡片：磨砂玻璃；正文：安静的纸感排版
   ================================================================== */
*,*::before,*::after{box-sizing:border-box}

:root{
  --bg:#f3f9fe;
  --fg:#14232f;
  --muted:#64798a;
  --line:rgba(116,163,199,.30);
  --card:rgba(255,255,255,.74);
  --glass-edge:rgba(255,255,255,.9);
  --accent:#2a7ba8;
  --accent-2:#57a9d9;
  --accent-3:#a9dbf5;
  --glow:rgba(94,180,240,.35);
  --hl:#bfe6ff;
  --hl-fg:#0d2333;
  --rf:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --top:56px;
  --shadow-sm:0 2px 10px rgba(31,94,135,.07);
  --shadow-md:0 10px 34px rgba(31,94,135,.12);
  --shadow-lg:0 22px 60px rgba(24,80,120,.16);
}
html[data-theme="dark"]{
  --bg:#061220;
  --fg:#d8e9f5;
  --muted:#86a2b6;
  --line:rgba(120,175,215,.20);
  --card:rgba(14,32,46,.66);
  --glass-edge:rgba(140,200,240,.20);
  --accent:#7cc8f0;
  --accent-2:#4e9ac8;
  --accent-3:#2c6a92;
  --glow:rgba(80,170,240,.30);
  --hl:#1d4a68;
  --hl-fg:#e6f5ff;
  --shadow-sm:0 2px 10px rgba(0,0,0,.25);
  --shadow-md:0 10px 34px rgba(0,0,0,.35);
  --shadow-lg:0 24px 70px rgba(0,0,0,.5);
}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:"Songti SC","Source Han Serif SC","Noto Serif SC",SimSun,serif;
  font-size:17px;
  line-height:1.95;
  padding-top:calc(var(--top) + env(safe-area-inset-top));
  padding-bottom:calc(36px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background .4s ease,color .4s ease;
}
a{color:var(--accent);text-decoration:none}
mark{background:var(--hl);color:var(--hl-fg);padding:0 2px;border-radius:3px}

/* ---------------- 极光背景 ---------------- */
.aurora{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none}
.aurora i{
  position:absolute;display:block;border-radius:50%;
  filter:blur(60px);opacity:.85;
  will-change:transform;
}
.aurora i:nth-child(1){
  width:58vmax;height:58vmax;left:-14vmax;top:-20vmax;
  background:radial-gradient(circle at 35% 35%,rgba(126,205,255,.70),rgba(126,205,255,0) 68%);
  animation:drift1 26s ease-in-out infinite alternate;
}
.aurora i:nth-child(2){
  width:48vmax;height:48vmax;right:-16vmax;top:-14vmax;
  background:radial-gradient(circle at 50% 50%,rgba(88,164,235,.55),rgba(88,164,235,0) 70%);
  animation:drift2 32s ease-in-out infinite alternate;
}
.aurora i:nth-child(3){
  width:52vmax;height:52vmax;left:22vmax;bottom:-26vmax;
  background:radial-gradient(circle at 50% 50%,rgba(170,230,255,.60),rgba(170,230,255,0) 70%);
  animation:drift3 38s ease-in-out infinite alternate;
}
html[data-theme="dark"] .aurora i:nth-child(1){background:radial-gradient(circle at 35% 35%,rgba(40,110,170,.55),rgba(40,110,170,0) 68%)}
html[data-theme="dark"] .aurora i:nth-child(2){background:radial-gradient(circle at 50% 50%,rgba(30,80,140,.5),rgba(30,80,140,0) 70%)}
html[data-theme="dark"] .aurora i:nth-child(3){background:radial-gradient(circle at 50% 50%,rgba(60,140,200,.35),rgba(60,140,200,0) 70%)}
@keyframes drift1{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(6vmax,4vmax,0) scale(1.12)}}
@keyframes drift2{from{transform:translate3d(0,0,0) scale(1.08)}to{transform:translate3d(-5vmax,6vmax,0) scale(1)}}
@keyframes drift3{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(4vmax,-5vmax,0) scale(1.1)}}

/* 冰晶画布（只在封面出现） */
#ice{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}

/* ---------------- 顶部栏 ---------------- */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  height:calc(var(--top) + env(safe-area-inset-top));
  padding:env(safe-area-inset-top) 10px 0;
  display:flex;align-items:center;gap:6px;
  font-family:var(--rf);
  background:color-mix(in srgb,var(--bg) 68%,transparent);
  backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
body.scrolled .topbar{box-shadow:0 8px 30px rgba(31,94,135,.10);background:color-mix(in srgb,var(--bg) 82%,transparent)}
.brand{
  flex:1;text-align:center;font-size:15px;font-weight:600;letter-spacing:.06em;
  color:var(--fg);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.icon-btn{
  width:38px;height:38px;flex:none;display:flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:12px;background:transparent;color:var(--fg);
  font-size:19px;line-height:1;cursor:pointer;transition:.22s;
}
.icon-btn:hover{background:var(--card);border-color:var(--glass-edge);box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.icon-btn:active{transform:scale(.94)}

/* ---------------- 抽屉 ---------------- */
.drawer{
  position:fixed;top:0;bottom:0;left:0;width:296px;max-width:87vw;z-index:60;
  display:flex;flex-direction:column;
  padding-top:env(safe-area-inset-top);
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:blur(24px) saturate(1.5);
  -webkit-backdrop-filter:blur(24px) saturate(1.5);
  border-right:1px solid var(--line);
  box-shadow:var(--shadow-lg);
  transform:translateX(-102%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);
  font-family:var(--rf);
}
body.nav-open .drawer{transform:none}
.scrim{
  position:fixed;inset:0;z-index:55;
  background:radial-gradient(circle at 20% 0%,rgba(20,60,90,.28),rgba(6,18,32,.45));
  opacity:0;pointer-events:none;transition:opacity .32s;
  backdrop-filter:blur(2px);
}
body.nav-open .scrim{opacity:1;pointer-events:auto}
.drawer-head{
  padding:18px 18px 10px;font-size:12.5px;letter-spacing:.14em;color:var(--muted);
  display:flex;justify-content:space-between;align-items:baseline;
}
.drawer-sub{font-size:11px;letter-spacing:0}
.drawer-list{flex:1;overflow-y:auto;padding:4px 8px 20px;scrollbar-width:thin}
.dl-item{
  display:flex;gap:10px;align-items:baseline;padding:10px 12px;border-radius:11px;
  color:var(--fg);font-size:13.5px;line-height:1.5;transition:.2s;
  border:1px solid transparent;
}
.dl-item:hover{background:var(--card);border-color:var(--glass-edge);transform:translateX(2px)}
.dl-item.on{
  background:linear-gradient(120deg,rgba(87,169,217,.20),rgba(169,219,245,.10));
  border-color:rgba(87,169,217,.35);color:var(--accent);
}
.dl-n{font-size:11px;color:var(--muted);min-width:18px;font-variant-numeric:tabular-nums}
.dl-item.on .dl-n{color:var(--accent)}
.dl-t{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.drawer-foot{padding:10px 16px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--line)}

.ghost-btn{
  width:100%;padding:10px;border-radius:11px;border:1px solid var(--line);
  background:var(--card);color:var(--fg);font-family:var(--rf);font-size:12.5px;cursor:pointer;
  display:block;text-align:center;box-sizing:border-box;transition:.22s;
  backdrop-filter:blur(10px);
}
.ghost-btn:hover{border-color:var(--accent-2);color:var(--accent);box-shadow:var(--shadow-sm)}
.ghost-btn.exit{margin-top:8px;color:var(--muted)}

/* ---------------- 版心 ---------------- */
main{max-width:44em;margin:0 auto;padding:0 20px;position:relative}

/* ---------------- 封面 ---------------- */
.cover{position:relative;text-align:center;padding:52px 0 18px;isolation:isolate}
.cover .halo{
  position:absolute;left:50%;top:34px;width:min(78vw,420px);aspect-ratio:1;z-index:-1;
  transform:translateX(-50%);
  background:radial-gradient(circle,rgba(160,220,255,.55),rgba(160,220,255,0) 62%);
  filter:blur(6px);animation:breathe 7s ease-in-out infinite;
}
html[data-theme="dark"] .cover .halo{background:radial-gradient(circle,rgba(60,150,220,.45),rgba(60,150,220,0) 62%)}
@keyframes breathe{0%,100%{transform:translateX(-50%) scale(1);opacity:.85}50%{transform:translateX(-50%) scale(1.08);opacity:1}}

.cover .kicker{
  display:inline-block;margin-bottom:18px;padding:5px 14px;border-radius:999px;
  font-family:var(--rf);font-size:11px;letter-spacing:.22em;color:var(--accent);
  background:color-mix(in srgb,var(--accent-3) 26%,transparent);
  border:1px solid color-mix(in srgb,var(--accent-2) 30%,transparent);
  backdrop-filter:blur(8px);
}
.cover h1{
  font-size:34px;line-height:1.3;margin:0 0 10px;letter-spacing:.08em;font-weight:600;
  background:linear-gradient(120deg,var(--fg) 15%,var(--accent) 55%,var(--accent-2) 85%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 6px 22px rgba(87,169,217,.20));
}
.cover .sub{
  color:var(--muted);font-size:12.5px;letter-spacing:.24em;margin:0 0 26px;font-family:var(--rf);
}
.cover .rule{
  width:54px;height:2px;margin:0 auto 28px;
  background:linear-gradient(90deg,transparent,var(--accent-2),transparent);
}

/* 统计：玻璃药丸 */
.stats{
  display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin:0 0 30px;
  font-family:var(--rf);
}
.stats .pill{
  display:flex;align-items:baseline;gap:6px;padding:10px 18px;border-radius:14px;
  background:var(--card);border:1px solid var(--glass-edge);
  box-shadow:var(--shadow-sm);backdrop-filter:blur(14px);
  transition:.25s;
}
.stats .pill:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.stats b{font-size:20px;font-weight:600;letter-spacing:.02em;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stats span{font-size:11.5px;color:var(--muted);letter-spacing:.1em}

/* 按钮 */
.cta-row{margin:0 0 34px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta{
  position:relative;display:inline-block;padding:12px 30px;border-radius:999px;
  font-family:var(--rf);font-size:13.5px;letter-spacing:.1em;color:#fff;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
  border:1px solid transparent;overflow:hidden;
  box-shadow:0 10px 26px rgba(42,123,168,.28);
  transition:transform .25s cubic-bezier(.34,1.56,.64,1),box-shadow .25s;
}
.cta:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(42,123,168,.36)}
.cta:active{transform:translateY(0) scale(.98)}
.cta::after{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.55) 50%,transparent 80%);
  transform:translateX(-120%);transition:transform .7s ease;
}
.cta:hover::after{transform:translateX(120%)}
html[data-theme="dark"] .cta{color:#04202f;box-shadow:0 10px 26px rgba(60,150,210,.28)}
html[data-theme="dark"] .cta.ghost{color:var(--accent)}
.cta.ghost{
  background:var(--card);color:var(--accent);border-color:color-mix(in srgb,var(--accent-2) 45%,transparent);
  box-shadow:var(--shadow-sm);backdrop-filter:blur(14px);
}
.cta.ghost:hover{background:color-mix(in srgb,var(--accent-3) 18%,var(--card));box-shadow:var(--shadow-md)}

.notice{
  text-align:left;font-size:12.5px;line-height:1.9;color:var(--muted);
  padding:16px 18px;border-radius:16px;
  background:var(--card);border:1px solid var(--glass-edge);
  box-shadow:var(--shadow-sm);backdrop-filter:blur(14px);
  font-family:var(--rf);
}
.notice b{display:block;color:var(--fg);margin-bottom:5px;letter-spacing:.06em}

/* ---------------- 区块标题 ---------------- */
h1.page-title{
  font-size:24px;letter-spacing:.16em;margin:34px 0 6px;font-weight:600;
  display:flex;align-items:center;gap:12px;
}
h1.page-title::after{
  content:"";flex:1;height:1px;
  background:linear-gradient(90deg,var(--line),transparent);
}
.page-sub{color:var(--muted);font-size:12.5px;margin:0 0 24px;font-family:var(--rf);letter-spacing:.04em}
.recent h2{
  font-size:13px;letter-spacing:.16em;color:var(--muted);font-weight:400;
  margin:8px 0 14px;font-family:var(--rf);display:flex;align-items:center;gap:10px;
}
.recent h2::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent)}

/* ---------------- 列表 / 目录 ---------------- */
.list,.catalog{list-style:none;margin:0;padding:0}
.list a,.catalog a{
  display:flex;gap:12px;align-items:baseline;padding:14px 16px;border-radius:14px;
  color:var(--fg);border:1px solid transparent;
  transition:transform .22s cubic-bezier(.34,1.4,.64,1),background .22s,border-color .22s,box-shadow .22s;
}
.list a:hover,.catalog a:hover{
  background:var(--card);border-color:var(--glass-edge);
  box-shadow:var(--shadow-md);transform:translateY(-2px);
  backdrop-filter:blur(14px);
}
.list li+li,.catalog li+li{margin-top:2px;border-top:1px solid color-mix(in srgb,var(--line) 60%,transparent)}
.catalog li a{padding:15px 14px}
.l-n,.c-n{
  font-size:11.5px;color:var(--accent);min-width:22px;font-family:var(--rf);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.l-t,.c-t{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.l-c,.c-c{font-size:11px;color:var(--muted);font-family:var(--rf)}
.js .catalog li{opacity:0;transform:translateY(10px)}
.js .catalog li.in{opacity:1;transform:none;transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1)}

/* ---------------- 阅读页 ---------------- */
.reading main{max-width:42em}
.readbar{
  position:fixed;left:0;top:0;height:3px;width:0;z-index:70;
  background:linear-gradient(90deg,var(--accent-2),var(--accent-3));
  box-shadow:0 0 12px var(--glow);
  transition:width .1s linear;
}
.ch-head{margin:24px 0 20px;padding-bottom:16px;border-bottom:1px solid var(--line);position:relative}
.ch-num{
  display:inline-block;font-family:var(--rf);font-size:11px;color:var(--accent);
  border:1px solid color-mix(in srgb,var(--accent-2) 55%,transparent);border-radius:6px;
  padding:2px 8px;letter-spacing:.1em;margin-bottom:12px;
  background:color-mix(in srgb,var(--accent-3) 20%,transparent);
}
.ch-head h1{font-size:25px;line-height:1.45;margin:0 0 8px;font-weight:600;letter-spacing:.02em}
.ch-meta{margin:0;font-family:var(--rf);font-size:11.5px;color:var(--muted);letter-spacing:.04em}
.body p{margin:0 0 .82em;text-indent:2em;text-align:justify}
.body h2{font-size:18px;margin:1.7em 0 .7em;letter-spacing:.06em;font-weight:600;text-indent:0;color:var(--accent)}
.body blockquote{
  margin:1.3em 0;padding:.6em 0 .6em 1.1em;
  border-left:3px solid color-mix(in srgb,var(--accent-2) 60%,transparent);
  color:var(--muted);font-size:.95em;
  background:linear-gradient(90deg,color-mix(in srgb,var(--accent-3) 14%,transparent),transparent);
  border-radius:0 8px 8px 0;
}
.body blockquote p{text-indent:0}
.body ul{margin:.8em 0;padding-left:1.4em}
.body li{margin:.35em 0}
.body hr{border:none;height:1px;margin:2.2em 0;background:linear-gradient(90deg,transparent,var(--line),transparent)}
.body img{max-width:100%;height:auto;display:block;margin:1.4em auto;border-radius:12px;box-shadow:var(--shadow-md)}
.body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9em;background:var(--card);padding:1px 5px;border-radius:4px}

.ch-nav{
  display:flex;gap:10px;justify-content:space-between;align-items:stretch;
  margin:38px 0 24px;padding-top:20px;border-top:1px solid var(--line);
  font-family:var(--rf);font-size:12.5px;
}
.pn{
  flex:1;max-width:44%;padding:12px 14px;border-radius:14px;
  background:var(--card);border:1px solid var(--glass-edge);
  box-shadow:var(--shadow-sm);backdrop-filter:blur(12px);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  transition:.24s;
}
.pn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:color-mix(in srgb,var(--accent-2) 45%,transparent)}
.pn.mid{flex:none;color:var(--muted)}
.pn.dim{background:transparent;border-color:transparent;box-shadow:none;color:var(--muted);opacity:.45;pointer-events:none}

/* ---------------- 搜索 ---------------- */
.searchbox input{
  width:100%;padding:14px 16px;border-radius:14px;border:1px solid var(--glass-edge);
  background:var(--card);color:var(--fg);font-size:15px;font-family:var(--rf);outline:none;
  box-shadow:var(--shadow-sm);backdrop-filter:blur(14px);transition:.25s;
}
.searchbox input:focus{
  border-color:var(--accent-2);
  box-shadow:0 0 0 4px color-mix(in srgb,var(--accent-2) 18%,transparent),var(--shadow-md);
}
#results{margin-top:18px;font-family:var(--rf)}
.resmeta{font-size:12px;color:var(--muted);padding:2px 4px 14px}
.rgrp{
  display:block;padding:13px 15px;border-radius:14px;color:var(--fg);margin-bottom:8px;
  border:1px solid transparent;transition:.22s;
}
.rgrp:hover{background:var(--card);border-color:var(--glass-edge);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.rhead{display:flex;gap:9px;align-items:baseline;font-size:13px;color:var(--accent);margin-bottom:6px}
.rhead b{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.rhead .rc{flex:none;font-size:11px;color:var(--muted)}
.rsnip{font-size:12px;line-height:1.7;color:var(--muted);margin:3px 0}

/* ---------------- 回顶 ---------------- */
#toTop{
  position:fixed;right:16px;bottom:calc(20px + env(safe-area-inset-bottom));z-index:40;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--glass-edge);background:var(--card);color:var(--accent);
  font-size:16px;line-height:1;cursor:pointer;
  box-shadow:var(--shadow-md);backdrop-filter:blur(14px);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s,transform .25s;font-family:var(--rf);
}
#toTop.on{opacity:1;pointer-events:auto;transform:none}
#toTop:hover{transform:translateY(-2px)}

/* ---------------- 入场动画 ---------------- */
.fade-up{opacity:0;transform:translateY(14px);animation:fadeUp .8s cubic-bezier(.2,.7,.3,1) forwards}
@keyframes fadeUp{to{opacity:1;transform:none}}
.d1{animation-delay:.05s}.d2{animation-delay:.14s}.d3{animation-delay:.23s}
.d4{animation-delay:.32s}.d5{animation-delay:.41s}

/* ---------------- 桌面 ---------------- */
@media (min-width:900px){
  :root{--top:62px}
  body{font-size:17.5px}
  main{max-width:47em}
  .reading main{
    max-width:47em;margin-top:10px;padding:42px 46px 36px;
    background:color-mix(in srgb,var(--card) 94%,transparent);
    border:1px solid var(--glass-edge);border-radius:24px;
    box-shadow:var(--shadow-md);backdrop-filter:blur(18px) saturate(1.2);
  }
  .reading main .chapter{padding-top:0}
  .cover{padding-top:74px}
  .cover h1{font-size:44px}
  .cover .halo{top:44px;width:min(52vw,520px)}
  .stats .pill{padding:12px 22px}
}

/* ---------------- 减少动效 ---------------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .aurora i,.cover .halo,.cta::after{animation:none!important;transition:none!important}
  .fade-up,.catalog li{opacity:1!important;transform:none!important;animation:none!important}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

@media print{
  .topbar,.drawer,.scrim,.ch-nav,.readbar,#toTop,.aurora,#ice{display:none!important}
  body{padding:0;font-size:11pt;background:#fff}
  main{max-width:none}
  .chapter{page-break-before:always}
}

/* ==================================================================
   对话稿 / 高光 / 批注
   ================================================================== */
.body.chat p{text-indent:0;margin:0 0 .55em}
.body.chat p:last-child{margin-bottom:0}
.turn{margin:18px 0;display:flex;flex-direction:column}
.turn-role{font-family:var(--rf);font-size:10px;letter-spacing:.2em;color:var(--muted);margin-bottom:6px}
.turn.me{align-items:flex-end}
.turn.me .bubble{
  max-width:88%;padding:12px 16px;border-radius:18px 18px 6px 18px;
  background:linear-gradient(135deg,
    color-mix(in srgb,var(--accent-3) 60%,var(--card)),
    color-mix(in srgb,var(--accent-2) 20%,var(--card)));
  border:1px solid color-mix(in srgb,var(--accent-2) 35%,transparent);
  box-shadow:var(--shadow-sm);
}
.turn.ai .bubble{
  max-width:100%;padding:15px 18px;border-radius:6px 18px 18px 18px;
  background:var(--card);border:1px solid var(--glass-edge);box-shadow:var(--shadow-sm);
}
.turn.ai .bubble p{text-indent:0}
.turn.ai .bubble h2{font-size:16px;margin:.9em 0 .5em;text-indent:0}
.turn.ai .bubble ul{margin:.5em 0}

.ch-tags{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0 0}
.ch-tags span{
  font-family:var(--rf);font-size:10.5px;padding:2px 9px;border-radius:999px;color:var(--accent);
  background:color-mix(in srgb,var(--accent-3) 30%,transparent);
  border:1px solid color-mix(in srgb,var(--accent-2) 28%,transparent);
}

/* 高光 */
mark.hl{
  background:linear-gradient(180deg,transparent 42%,color-mix(in srgb,var(--hl) 90%,transparent) 42%);
  color:inherit;padding:0 1px;cursor:pointer;transition:background .18s;
}
mark.hl:hover{background:var(--hl)}
mark.hl.has-note{
  background:linear-gradient(180deg,transparent 42%,color-mix(in srgb,var(--accent-3) 75%,transparent) 42%);
  box-shadow:inset 0 -1px 0 var(--accent-2);
}
p.flash{animation:flash .9s ease}
@keyframes flash{0%{background:color-mix(in srgb,var(--accent-3) 55%,transparent)}100%{background:transparent}}

/* 选中工具条 */
#selbar{
  position:fixed;z-index:80;display:flex;gap:4px;padding:5px;border-radius:12px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-edge);box-shadow:var(--shadow-md);
  font-family:var(--rf);
}
#selbar[hidden]{display:none}
#selbar button{
  border:0;background:transparent;color:var(--fg);font-size:12.5px;
  padding:7px 13px;border-radius:8px;cursor:pointer;font-family:var(--rf);
}
#selbar button:hover{background:var(--accent);color:#fff}
html[data-theme="dark"] #selbar button:hover{color:#04202f}

/* 手机：贴底操作条（避开系统选择菜单） */
#selbar.docked{
  left:50%; right:auto; top:auto; transform:translateX(-50%);
  bottom:calc(14px + env(safe-area-inset-bottom));
  width:min(420px, calc(100vw - 28px));
  justify-content:center; gap:2px; padding:7px;
  border-radius:16px; box-shadow:0 14px 40px rgba(12,40,62,.28);
}
#selbar.docked button{
  flex:1; padding:12px 10px; font-size:14px; border-radius:11px; min-height:44px;
}
#selbar.docked .sb-cancel{flex:0 0 74px; color:var(--muted); font-size:13px}
#selbar.docked .sb-cancel:hover{background:transparent;color:var(--accent)}

/* 浮动批注入口 */
#noteFab{
  position:fixed;left:16px;bottom:calc(20px + env(safe-area-inset-bottom));z-index:40;
  padding:10px 15px;border-radius:999px;border:1px solid var(--glass-edge);
  background:var(--card);color:var(--muted);font-family:var(--rf);font-size:12px;
  cursor:pointer;box-shadow:var(--shadow-sm);backdrop-filter:blur(14px);transition:.22s;
}
#noteFab.has{color:var(--accent);border-color:color-mix(in srgb,var(--accent-2) 45%,transparent)}
#noteFab:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
body.selbar-open #noteFab{opacity:0;pointer-events:none;transform:translateY(6px)}

/* 弹层 */
#noteSheet{position:fixed;inset:0;z-index:90;display:flex;align-items:flex-end;justify-content:center}
#noteSheet[hidden]{display:none}
.sheet-bg{position:absolute;inset:0;background:rgba(6,18,32,.44);opacity:0;transition:opacity .25s}
#noteSheet.on .sheet-bg{opacity:1}
.sheet-card{
  position:relative;width:min(520px,100%);max-height:86vh;overflow:auto;
  background:var(--bg);border:1px solid var(--glass-edge);border-radius:22px 22px 0 0;
  padding:18px 18px calc(18px + env(safe-area-inset-bottom));
  box-shadow:var(--shadow-lg);transform:translateY(16px);opacity:0;
  transition:.3s cubic-bezier(.2,.7,.3,1);font-family:var(--rf);
}
#noteSheet.on .sheet-card{transform:none;opacity:1}
.sheet-head{
  font-size:14px;font-weight:600;letter-spacing:.08em;margin-bottom:12px;
  display:flex;justify-content:space-between;align-items:baseline;gap:8px;
}
.sheet-head span{font-size:11px;color:var(--muted);font-weight:400}
.quote{
  margin:0 0 12px;padding:10px 12px;border-left:3px solid var(--accent-2);
  background:color-mix(in srgb,var(--accent-3) 14%,transparent);border-radius:0 8px 8px 0;
  font-size:12.5px;line-height:1.7;color:var(--muted);
}
.note-body{font-size:14px;line-height:1.85;margin:0 0 14px}
.note-body.empty{color:var(--muted);font-size:13px}
#noteText{
  width:100%;padding:12px;border-radius:12px;border:1px solid var(--line);
  background:var(--card);color:var(--fg);font-family:var(--rf);font-size:14px;
  line-height:1.7;outline:none;resize:vertical;
}
#noteText:focus{border-color:var(--accent-2);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent-2) 16%,transparent)}
.sheet-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:14px}
.sheet-actions .ghost-btn{width:auto;padding:9px 16px}
.cta.small{padding:9px 18px;font-size:13px;box-shadow:none}
.note-list{display:flex;flex-direction:column;gap:6px;max-height:52vh;overflow:auto}
.note-item{
  display:flex;gap:8px;align-items:baseline;text-align:left;padding:10px 12px;border-radius:10px;
  border:1px solid transparent;background:transparent;color:var(--fg);cursor:pointer;
  font-family:var(--rf);font-size:12.5px;
}
.note-item:hover{background:var(--card);border-color:var(--glass-edge)}
.ni-i{color:var(--accent);font-size:11px;min-width:16px}
.ni-q{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ni-n{color:var(--muted);font-size:11px;max-width:42%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

@media (min-width:900px){
  #noteSheet{align-items:center}
  .sheet-card{border-radius:22px;max-height:80vh}
}


/* ---------------- 日历 ---------------- */
.cal{
  margin-top:10px;padding:16px 14px;border-radius:20px;
  background:var(--card);border:1px solid var(--glass-edge);
  box-shadow:var(--shadow-md);backdrop-filter:blur(16px);
}
.cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cal-title-btn{
  display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:10px;
  border:1px solid transparent;background:transparent;color:var(--fg);cursor:pointer;
  font-family:var(--rf);font-size:14px;letter-spacing:.06em;font-weight:600;
}
.cal-title-btn:hover{background:color-mix(in srgb,var(--accent-3) 22%,transparent);border-color:var(--line)}
.cal-caret{font-style:normal;font-size:10px;color:var(--muted);transform:translateY(1px)}

.cal-jump{
  margin:0 0 12px;padding:12px;border-radius:14px;
  background:color-mix(in srgb,var(--accent-3) 12%,var(--card));
  border:1px solid var(--line);
  animation:jumpIn .18s ease;
}
@keyframes jumpIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.jump-year{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:10px}
.jump-year b{font-family:var(--rf);font-size:13px;letter-spacing:.06em}
.jump-months{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.jm{
  padding:9px 4px;border-radius:9px;border:1px solid var(--line);background:var(--card);
  color:var(--fg);font-family:var(--rf);font-size:12.5px;cursor:pointer;transition:.16s;
}
.jm:hover{border-color:var(--accent-2);color:var(--accent)}
.jm.has{background:color-mix(in srgb,var(--accent-3) 34%,var(--card));color:var(--accent);font-weight:600}
.jm.on{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-color:transparent}
.jump-date{display:flex;align-items:center;gap:10px;margin-top:12px;font-family:var(--rf);font-size:12px;color:var(--muted)}
.jump-date input{
  flex:1;padding:9px 11px;border-radius:10px;border:1px solid var(--line);
  background:var(--card);color:var(--fg);font-family:var(--rf);font-size:13px;outline:none;
}
.jump-date input:focus{border-color:var(--accent-2)}
.jump-quick{display:flex;gap:8px;margin-top:10px}
.jump-quick button{
  flex:1;padding:9px;border-radius:10px;border:1px solid var(--line);background:var(--card);
  color:var(--muted);font-family:var(--rf);font-size:12px;cursor:pointer;
}
.jump-quick button:hover{border-color:var(--accent-2);color:var(--accent)}
.cal-nav{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:transparent;
  color:var(--fg);font-size:18px;line-height:1;cursor:pointer;
}
.cal-nav:hover{background:color-mix(in srgb,var(--accent-3) 25%,transparent);border-color:var(--accent-2)}
.cal-week{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:6px}
.cal-week span{text-align:center;font-family:var(--rf);font-size:11px;color:var(--muted)}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.cal-cell{
  position:relative;aspect-ratio:1;border-radius:12px;border:1px solid transparent;
  background:transparent;color:var(--fg);cursor:pointer;font-family:var(--rf);
  display:flex;align-items:center;justify-content:center;font-size:13.5px;transition:.18s;
}
.cal-cell.empty{pointer-events:none}
.cal-cell:hover{background:color-mix(in srgb,var(--accent-3) 20%,transparent)}
.cal-cell.today{border-color:color-mix(in srgb,var(--accent-2) 55%,transparent)}
.cal-cell.has{background:color-mix(in srgb,var(--accent-3) 30%,transparent);font-weight:600;color:var(--accent)}
.cal-cell.has-note::after{
  content:"";position:absolute;right:7px;top:7px;width:5px;height:5px;border-radius:50%;
  background:var(--accent);
}
.cal-cell.on{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-color:transparent}
.cal-cell.on::after{background:#fff}
.cal-cell .cn{
  position:absolute;bottom:5px;left:50%;transform:translateX(-50%);
  font-size:9.5px;color:currentColor;opacity:.75;
}
.cal-cell .cn.dot{width:4px;height:4px;border-radius:50%;background:currentColor;bottom:4px}
.cal-foot{display:flex;justify-content:center;margin-top:12px}
.cal-today{
  padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:transparent;
  color:var(--muted);font-family:var(--rf);font-size:12px;cursor:pointer;
}
.cal-today:hover{border-color:var(--accent-2);color:var(--accent)}

.cal-day{margin-top:18px}
.day-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px;font-family:var(--rf)}
.day-head b{font-size:14px;letter-spacing:.04em}
.day-head span{font-size:11.5px;color:var(--muted)}
.day-empty{color:var(--muted);font-size:12.5px;font-family:var(--rf)}
.day-sec{font-family:var(--rf);font-size:11px;letter-spacing:.16em;color:var(--muted);margin:14px 0 6px}
.day-item,.day-note{
  display:flex;gap:10px;align-items:baseline;padding:11px 13px;border-radius:12px;
  color:var(--fg);border:1px solid transparent;margin-bottom:5px;
}
.day-item:hover,.day-note:hover{background:var(--card);border-color:var(--glass-edge);box-shadow:var(--shadow-sm)}
.di-i{font-family:var(--rf);font-size:11px;color:var(--accent);min-width:26px}
.di-t{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.di-m{font-family:var(--rf);font-size:10.5px;color:var(--muted)}
.dn-q{flex:1;font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dn-n{font-size:11.5px;color:var(--muted);max-width:40%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dn-t{font-family:var(--rf);font-size:10.5px;color:var(--muted)}