/* ============================================================
   mint — 健康资讯模板设计系统 v1.0
   医疗信任感 / 薄荷青绿 / 现代排版 / 移动优先 / 自动深色
   ============================================================ */
:root{
  --bg:#f7fafa; --card:#ffffff; --fg:#123232; --muted:#5b7171;
  --brand:#0d9488; --brand-deep:#0f766e; --brand-soft:#e6f5f3;
  --accent:#f59e0b; --border:#e2ecea;
  --radius:14px; --radius-s:10px;
  --shadow:0 1px 2px rgba(18,50,50,.05),0 10px 30px -14px rgba(18,50,50,.14);
  --w:1100px; --read:47rem;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --bg:#0e1616; --card:#162222; --fg:#e3eded; --muted:#93a8a8;
    --brand:#2dd4bf; --brand-deep:#5eead4; --brand-soft:#123232;
    --border:#1f2e2e;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -14px rgba(0,0,0,.55);
  }
}
:root[data-theme=dark]{
  --bg:#0e1616; --card:#162222; --fg:#e3eded; --muted:#93a8a8;
  --brand:#2dd4bf; --brand-deep:#5eead4; --brand-soft:#123232;
  --border:#1f2e2e;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -14px rgba(0,0,0,.55);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--fg); line-height:1.75; font-size:16px;
}
a{color:inherit;text-decoration:none;transition:color .15s}
a:hover{color:var(--brand)}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--w);margin:0 auto;padding:0 20px}
.icon{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:-.125em}

/* ---------- 顶部信任条 ---------- */
.topbar{background:var(--brand-deep);color:#fff;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar a{color:#d9f3f0}
.topbar .dot{opacity:.5;margin:0 6px}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--card) 88%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-in{max-width:var(--w);margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:16px}
.logo{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.logo .mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#34d399);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:800}
.nav{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{padding:7px 13px;border-radius:9px;font-size:15px;color:var(--muted);white-space:nowrap;font-weight:500}
.nav a:hover,.nav a.on{color:var(--brand-deep);background:var(--brand-soft)}
.header-tools{display:flex;align-items:center;gap:9px}
.search-mini{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:99px;padding:5px 13px;transition:border-color .15s}
.search-mini:focus-within{border-color:var(--brand)}
.search-mini input{border:0;background:transparent;outline:0;color:var(--fg);width:118px;font-size:14px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:37px;height:37px;border-radius:10px;border:1px solid var(--border);background:var(--card);color:var(--fg);cursor:pointer;font-size:16px}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.menu-toggle{display:none}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:13px;color:var(--muted);padding:15px 20px 0;max-width:var(--w);margin:0 auto}
.crumb .sep{opacity:.45}
.crumb .cur{color:var(--fg)}

/* ---------- Hero（首页） ---------- */
.hero{background:linear-gradient(160deg,var(--brand-soft),transparent 70%);border-bottom:1px solid var(--border)}
.hero .container{padding:52px 20px 46px;display:grid;grid-template-columns:1.35fr 1fr;gap:38px;align-items:center}
.hero h1{font-size:34px;line-height:1.32;letter-spacing:-.02em;font-weight:800}
.hero h1 em{font-style:normal;color:var(--brand);position:relative}
.hero p.sub{color:var(--muted);margin:14px 0 22px;font-size:15.5px;max-width:34em}
.hero .cta{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;padding:11px 22px;border-radius:12px;font-weight:600;font-size:15px;box-shadow:0 8px 22px -8px rgba(13,148,136,.55)}
.hero .cta:hover{background:var(--brand-deep);color:#fff}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.hero-stats .stat{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-s);padding:14px 16px;box-shadow:var(--shadow);text-align:center}
.hero-stats b{display:block;font-size:22px;color:var(--brand-deep);font-weight:800;letter-spacing:-.02em}
.hero-stats span{font-size:12.5px;color:var(--muted)}

/* ---------- 区块标题 ---------- */
.section{padding:30px 0}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}
.sec-head h2{font-size:20px;font-weight:800;letter-spacing:-.01em;display:flex;align-items:center;gap:9px}
.sec-head h2::before{content:"";width:5px;height:18px;border-radius:3px;background:linear-gradient(180deg,var(--brand),#34d399)}
.sec-head .more{font-size:14px;color:var(--muted)}

/* ---------- 科室导航网格 ---------- */
.dept-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:12px}
.dept-grid a{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-s);padding:15px 14px;text-align:center;box-shadow:var(--shadow);transition:transform .16s,border-color .16s}
.dept-grid a:hover{transform:translateY(-2px);border-color:var(--brand)}
.dept-grid .dn{font-weight:700;font-size:15px}
.dept-grid .dc{font-size:12px;color:var(--muted);margin-top:2px}
.dept-grid .ic{width:40px;height:40px;margin:0 auto 8px;border-radius:11px;background:var(--brand-soft);color:var(--brand-deep);display:flex;align-items:center;justify-content:center;font-size:19px}

/* ---------- 文章卡 ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:0 4px 14px rgba(18,50,50,.08),0 18px 36px -14px rgba(18,50,50,.2)}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--brand-soft),#d1fae5)}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .t{font-size:15.5px;font-weight:650;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .x{font-size:13px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .m{display:flex;gap:10px;align-items:center;font-size:12.5px;color:var(--muted);margin-top:auto}
.badge{display:inline-block;font-size:12px;color:var(--brand-deep);background:var(--brand-soft);padding:2px 9px;border-radius:99px;font-weight:600}

/* ---------- 列表页文章流 ---------- */
.flow{display:flex;flex-direction:column;gap:14px}
.flow a{display:flex;gap:16px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);transition:border-color .15s}
.flow a:hover{border-color:var(--brand)}
.flow .fx{flex:1;display:flex;flex-direction:column;gap:7px}
.flow .t{font-size:16.5px;font-weight:650;line-height:1.45}
.flow .x{font-size:13.5px;color:var(--muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.flow .m{font-size:12.5px;color:var(--muted);margin-top:auto}
.flow .pic{width:172px;aspect-ratio:16/10;border-radius:var(--radius-s);overflow:hidden;background:var(--brand-soft);flex-shrink:0}
.flow .pic img{width:100%;height:100%;object-fit:cover}

/* ---------- 文章页 ---------- */
.article-wrap{max-width:var(--read);margin:0 auto;padding:26px 20px 44px}
.art-head h1{font-size:26px;line-height:1.45;letter-spacing:-.01em;margin:10px 0 14px;font-weight:800}
.art-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13.5px;color:var(--muted);padding-bottom:18px;border-bottom:1px solid var(--border)}
.art-body{font-size:16.5px;line-height:1.95;padding-top:22px;word-break:break-word}
.art-body p{margin:0 0 1.25em}
.art-body h2{font-size:21px;margin:1.8em 0 .8em;padding-left:12px;border-left:4px solid var(--brand)}
.art-body h3{font-size:18px;margin:1.5em 0 .7em}
.art-body img{border-radius:10px;margin:1em auto}
.art-body blockquote{margin:1.4em 0;padding:12px 18px;background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;color:var(--muted)}
.art-body ul,.art-body ol{padding-left:1.6em;margin-bottom:1.2em}
.art-body table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:14.5px}
.art-body th,.art-body td{border:1px solid var(--border);padding:9px 12px;text-align:left}
.art-body th{background:var(--brand-soft)}
.disclaimer{margin-top:26px;padding:13px 16px;background:var(--card);border:1px dashed var(--border);border-left:3px solid var(--accent);border-radius:10px;font-size:13px;color:var(--muted)}

/* ---------- 上下篇 ---------- */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0}
.pn a{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-s);padding:13px 16px;box-shadow:var(--shadow)}
.pn a:hover{border-color:var(--brand)}
.pn .lab{font-size:12.5px;color:var(--muted);margin-bottom:4px}
.pn .ttl{font-size:14.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pn .next{text-align:right}

/* ---------- 分页 ---------- */
.pager{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:30px 0;list-style:none}
.pager li a,.pager li span{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 10px;border-radius:10px;border:1px solid var(--border);background:var(--card);font-size:14px}
.pager li a:hover{border-color:var(--brand);color:var(--brand)}
.pager li span{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---------- 搜索 ---------- */
.search-hero{max-width:var(--read);margin:0 auto;padding:32px 20px 8px}
.search-hero form{display:flex;gap:10px}
.search-hero input{flex:1;border:1px solid var(--border);background:var(--card);color:var(--fg);border-radius:12px;padding:12px 18px;font-size:16px;outline:0}
.search-hero input:focus{border-color:var(--brand)}
.search-hero button{border:0;background:var(--brand);color:#fff;border-radius:12px;padding:0 26px;font-size:15px;cursor:pointer}
.search-hero button:hover{background:var(--brand-deep)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--border);margin-top:34px;padding:30px 20px 96px;color:var(--muted);font-size:13.5px;text-align:center;background:linear-gradient(transparent,var(--brand-soft))}
.site-footer .fn{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 16px;margin-bottom:10px}
#backtop{position:fixed;right:22px;bottom:26px;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:var(--card);color:var(--fg);box-shadow:var(--shadow);cursor:pointer;display:none;align-items:center;justify-content:center;font-size:17px;z-index:60}
#backtop.show{display:inline-flex}

/* ---------- 移动端 ---------- */
@media (max-width:860px){
  .hero .container{grid-template-columns:1fr;padding:36px 20px}
  .hero h1{font-size:26px}
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  .nav{position:fixed;inset:97px 0 auto 0;background:var(--card);border-bottom:1px solid var(--border);flex-direction:column;padding:10px 20px 18px;display:none;overflow-y:auto}
  .menu-toggle{display:inline-flex}
  body.nav-open .nav{display:flex}
  body.nav-open{overflow:hidden}
  .search-mini input{width:76px}
  .flow a{flex-direction:column}
  .flow .pic{width:100%}
  .art-head h1{font-size:21.5px}
  .pn{grid-template-columns:1fr}
}
@media (max-width:480px){
  .grid{grid-template-columns:1fr}
  .search-mini{display:none}
}
/* ---------- 入场动画 ---------- */
@media (prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(14px);transition:opacity .5s,transform .5s}
  .reveal.in{opacity:1;transform:none}
}