:root{
  --paper:#f6f1e4;
  --paper-2:#fbf7ec;
  --ink:#2a2620;
  --ink-2:#5a5346;
  --ink-3:#8b8272;
  --line:#ddd2ba;
  --line-2:#c9b998;
  --seal:#9c2b21;
  --seal-2:#b8452f;
  --jade:#3f6b58;
  --gold:#a1752c;
  --shadow:0 2px 14px rgba(70,55,30,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{height:100%}
body{min-height:100%;display:flex;flex-direction:column}
body{
  background:
    radial-gradient(circle at 18% 6%, rgba(255,255,255,.55), transparent 42%),
    radial-gradient(circle at 82% 92%, rgba(190,165,110,.12), transparent 45%),
    var(--paper);
  color:var(--ink);
  font-family:"Songti SC","SimSun","Noto Serif SC","Source Han Serif SC",serif;
  font-size:16px;
  line-height:1.85;
}
a{color:var(--seal);text-decoration:none}
a:hover{text-decoration:underline}

/* 顶栏 */
.top{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  padding:20px 30px 16px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,253,246,.9), rgba(246,241,228,.6));
  backdrop-filter:blur(3px);
  position:sticky;top:0;z-index:20;
}
.brand{display:flex;gap:14px;align-items:center}
.seal{
  width:48px;height:48px;flex:0 0 48px;
  display:grid;place-items:center;
  background:var(--seal);color:#fff5e6;
  font-size:26px;border-radius:7px;
  box-shadow:inset 0 0 0 2px rgba(255,245,230,.45), var(--shadow);
  letter-spacing:0;
}
.brand h1{margin:0;font-size:21px;letter-spacing:.14em;font-weight:700}
.brand .sub{margin:1px 0 0;font-size:12.5px;color:var(--ink-3);letter-spacing:.08em}

.tabs{display:flex;gap:6px}
.tab{
  font:inherit;font-size:15px;cursor:pointer;
  padding:7px 16px;border:1px solid transparent;border-radius:3px;
  background:transparent;color:var(--ink-2);letter-spacing:.06em;
}
.tab:hover{background:rgba(160,130,70,.09)}
.tab.active{color:var(--seal);border-color:var(--line-2);background:var(--paper-2);box-shadow:var(--shadow)}

main{flex:1 0 auto;width:100%;box-sizing:border-box;max-width:1080px;margin:0 auto;padding:26px 22px 60px}
.view{display:none;animation:fade .25s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* 搜索 */
.searchbar{display:flex;gap:10px;margin:6px 0 10px}
.searchbar input{
  flex:1;min-width:0;width:100%;font:inherit;font-size:16.5px;padding:12px 16px;
  background:var(--paper-2);border:1px solid var(--line-2);border-radius:4px;
  color:var(--ink);outline:none;box-shadow:inset 0 1px 3px rgba(120,100,60,.06);
}
.searchbar input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(161,117,44,.12)}
.searchbar button{
  font:inherit;font-size:16px;letter-spacing:.25em;padding:0 26px;cursor:pointer;
  background:var(--seal);color:#fff6e8;border:0;border-radius:4px;
}
.searchbar button:hover{background:var(--seal-2)}
.suggest{
  position:absolute;z-index:30;margin:52px 0 0;padding:4px;list-style:none;min-width:320px;
  background:var(--paper-2);border:1px solid var(--line-2);border-radius:4px;box-shadow:var(--shadow);
}
.suggest li{padding:7px 12px;cursor:pointer;display:flex;justify-content:space-between;gap:16px}
.suggest li:hover,.suggest li.on{background:rgba(161,117,44,.12)}
.suggest .tag{color:var(--ink-3);font-size:13px}

.hot{font-size:14px;color:var(--ink-3);margin-bottom:18px}
.hot-label{color:var(--ink-3)}
.hot a{margin:0 6px;color:var(--jade);border-bottom:1px dotted var(--line-2)}

/* 科室与病名网格 */
.dept-filter{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 18px}
.chip{
  font:inherit;font-size:14px;cursor:pointer;padding:5px 14px;
  border:1px solid var(--line-2);border-radius:20px;background:transparent;color:var(--ink-2);
}
.chip.on{background:var(--jade);border-color:var(--jade);color:#f4efe0}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(196px,1fr));gap:12px}
.card{
  display:block;padding:14px 16px;background:var(--paper-2);
  border:1px solid var(--line);border-left:3px solid var(--line-2);border-radius:3px;
  color:var(--ink);box-shadow:var(--shadow);transition:.16s;
}
.card:hover{transform:translateY(-2px);border-left-color:var(--seal);text-decoration:none}
.card b{font-size:17px;letter-spacing:.06em;font-weight:700}
.card small{display:block;color:var(--ink-3);font-size:12.5px;margin-top:3px;line-height:1.6}

/* 详情 */
.detail{background:var(--paper-2);border:1px solid var(--line);border-radius:4px;padding:0 0 26px;box-shadow:var(--shadow)}
.detail-head{padding:24px 28px 18px;border-bottom:1px double var(--line-2);background:linear-gradient(180deg,rgba(255,255,255,.5),transparent)}
.detail-head h2{margin:0 0 2px;font-size:29px;letter-spacing:.12em}
.detail-head .alias{color:var(--ink-3);font-size:14px}
.meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:14px;font-size:14.5px;color:var(--ink-2)}
.meta span{min-width:0;max-width:100%;overflow-wrap:anywhere}
.meta b{color:var(--jade);font-weight:600;margin-right:6px}
.intro{margin:16px 0 0;color:var(--ink-2);font-size:15px;text-align:justify}
.acts{margin-top:12px}
.printbtn{
  font:inherit;font-size:13px;cursor:pointer;padding:4px 12px;border-radius:3px;
  border:1px solid var(--line-2);background:transparent;color:var(--ink-2);
}
.printbtn:hover{background:rgba(160,130,70,.1);color:var(--seal)}

.sec-title{
  margin:26px 28px 12px;font-size:15px;letter-spacing:.22em;color:var(--seal);
  display:flex;align-items:center;gap:12px;
}
.sec-title::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line-2),transparent)}

.pat{border:1px solid var(--line);border-radius:3px;margin:0 28px 12px;background:#fffdf7;overflow:hidden}
.pat>summary{
  cursor:pointer;list-style:none;padding:12px 16px;display:flex;gap:12px;align-items:baseline;
  background:rgba(200,178,132,.10);
}
.pat>summary::-webkit-details-marker{display:none}
.pat>summary .n{font-size:16.5px;font-weight:700;letter-spacing:.05em}
.pat>summary .f{color:var(--gold);font-size:14px}
.pat>summary .arrow{margin-left:auto;color:var(--ink-3);font-size:12px;transition:.2s}
.pat[open]>summary .arrow{transform:rotate(90deg)}
.pat-body{padding:6px 18px 16px}
.row{display:flex;gap:12px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:15px}
.row:last-child{border-bottom:0}
.row .k{flex:0 0 66px;color:var(--ink-3);font-size:14px;letter-spacing:.08em;padding-top:1px}
.row .v{flex:1;text-align:justify}
.row .v.hl{color:var(--ink)}
.herbs{color:#4a3f2c;letter-spacing:.02em}
.pts{color:var(--jade)}
.add{color:var(--ink-2);font-size:14px}

/* 原文 */
.quotes{margin:0 28px}
.qbook{margin-bottom:16px}
.qbook h4{
  margin:14px 0 6px;font-size:15px;color:var(--jade);letter-spacing:.08em;
  padding-bottom:4px;border-bottom:1px solid var(--line);
}
.qbook h4 span{color:var(--ink-3);font-size:12.5px;font-weight:400;margin-left:8px;letter-spacing:0}
.q{margin:8px 0;padding-left:12px;border-left:2px solid rgba(161,117,44,.35);font-size:15px;text-align:justify;color:#3a332a}
.q .src{display:block;font-size:12.5px;color:var(--ink-3);margin-top:2px}
.q mark{background:rgba(205,160,60,.45);color:inherit;padding:0 1px}

/* 全文检索 */
.cstatus{font-size:14px;color:var(--ink-3);margin:6px 0 16px}
.cresults .hitbook{margin-bottom:22px}
.hitbook h3{margin:0 0 8px;font-size:16px;color:var(--seal);letter-spacing:.08em}
.hit{padding:9px 0;border-bottom:1px dashed var(--line);font-size:15px;text-align:justify}
.hit .ch{display:block;font-size:13px;color:var(--jade);margin-bottom:2px}
.hit mark{background:rgba(205,160,60,.45);color:#3a2a10;padding:0 1px;border-radius:2px}
.more{font-size:14px;color:var(--ink-3);margin:10px 0}

/* 关于 */
.about{max-width:820px;margin:0 auto;background:var(--paper-2);border:1px solid var(--line);padding:34px 40px;box-shadow:var(--shadow)}
.about h2{font-size:22px;letter-spacing:.1em;margin:0 0 12px}
.about h3{font-size:16px;color:var(--seal);letter-spacing:.1em;margin:26px 0 8px}
.about p,.about li{color:var(--ink-2);font-size:15px;text-align:justify}
.about strong{color:var(--seal)}

.foot{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:center;
  padding:18px;color:var(--ink-3);font-size:12.5px;border-top:1px solid var(--line);
}

@media (max-width:720px){
  .top{padding:14px 16px}
  main{padding:18px 14px 40px}
  .detail-head,.pat,.sec-title,.quotes{margin-left:16px;margin-right:16px}
  .detail-head{padding:20px 16px}
  .about{padding:24px 20px}
  .searchbar button{padding:0 16px;letter-spacing:.1em}
  .grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
}

@media print{
  .top,.foot,.searchbar,.hot,.dept-filter,.tab{display:none!important}
  body{background:#fff}
  .detail{box-shadow:none;border:0}
  .pat{break-inside:avoid}
  .pat>summary{background:none}
  .view{display:block!important}
}

/* ===================== 手机版（≤720px） ===================== */
@media (max-width:720px){
  body{
    padding-bottom:calc(64px + env(safe-area-inset-bottom));
    -webkit-tap-highlight-color:transparent;
  }
  .top{padding:10px 14px 8px;gap:8px;backdrop-filter:none;position:relative}
  .brand{gap:10px}
  .seal{width:38px;height:38px;font-size:23px;border-radius:8px}
  h1{font-size:17px;letter-spacing:.04em}
  .sub{display:none}

  /* 底部三键导航，方便单手操作 */
  .tabs{
    position:fixed;left:0;right:0;bottom:0;z-index:60;
    display:grid;grid-template-columns:repeat(3,1fr);gap:4px;
    margin:0;padding:6px 8px calc(6px + env(safe-area-inset-bottom));
    background:rgba(251,247,236,.97);
    border-top:1px solid var(--line);
    backdrop-filter:blur(6px);
  }
  .tab{
    padding:11px 4px;font-size:14px;border-radius:10px;
    color:var(--ink-soft);
  }
  .tab.active{background:var(--seal);color:#fff;border-color:var(--seal)}

  main{padding:12px 12px 28px}

  /* 搜索框吸顶，翻看长条文时随时能换病名 */
  .searchbar{
    position:sticky;top:0;z-index:30;
    padding:8px 0 6px;margin:0;
    background:linear-gradient(var(--paper) 78%,rgba(246,241,228,0));
    gap:8px;
  }
  .searchbar input{padding:12px 12px;font-size:16px}
  .searchbar button{padding:0 18px;font-size:15px;letter-spacing:0;height:46px}

  .hot{font-size:13px;line-height:2;margin:6px 0 10px}
  .hot a{padding:3px 2px}

  .dept-filter{gap:6px;margin:6px 0 12px}
  .dept-filter button{padding:8px 14px;font-size:14px}

  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .card{padding:12px 12px 11px}
  .card b{font-size:15px}
  .card small{font-size:12px;line-height:1.5}

  .detail-head,.pat,.sec-title,.quotes,.about{margin-left:0;margin-right:0}
  .detail-head{padding:18px 14px}
  .detail-head h2{font-size:24px}
  .meta{display:block;line-height:2}
  .meta span{display:inline-block;margin-right:12px}

  .pat>summary{padding:12px 12px;font-size:15px;gap:6px}
  .pat-body{padding:4px 12px 12px}
  .row{gap:10px;padding:8px 0;font-size:14px;line-height:1.85}
  .row .k{flex:0 0 52px;font-size:12.5px}
  .herb{font-size:14px;white-space:nowrap}

  .sec-title{margin-top:18px;font-size:15px}
  .qgroup h4{font-size:14px}
  .q{padding-left:10px;font-size:14.5px;line-height:1.85}
  .q .src{font-size:12.5px}

  .cstatus{font-size:13.5px}
  .hit{padding:9px 10px;font-size:14.5px;line-height:1.8}
  .hit .hsrc{font-size:12.5px}

  .about{padding:18px 14px}
  .about h2{font-size:20px}
  .about p,.about li{font-size:14.5px;line-height:1.9}

  .suggest{max-height:46vh;overflow:auto}
  .suggest li{padding:12px}
  .foot{padding:16px 12px 26px;font-size:12px;gap:4px}
}

/* 超窄屏（小屏手机） */
@media (max-width:360px){
  .grid{grid-template-columns:1fr}
  h1{font-size:16px}
  .tab{font-size:13px;padding:10px 2px}
}




.about .tip{background:rgba(63,107,88,.08);border-left:3px solid var(--jade);padding:10px 14px;border-radius:3px;font-size:14.5px;line-height:1.85}