/* 热带美肌 — 药房白 clinical minimal
   near-white / single dark-teal ink / hairline rules / dense text-first */

:root{
  --bg:#FBFCFC;
  --ink:#123534;
  --body:#2A4342;
  --muted:#617978;
  --faint:#8FA3A2;
  --line:#E3E9E9;
  --line-strong:#C9D5D4;
  --wash:#F2F6F6;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--sans);background:var(--bg);color:var(--body);line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--ink)}
.wrap{max-width:860px;margin:0 auto;padding:0 22px}

/* header */
.site-header{background:var(--bg);border-bottom:1px solid var(--line-strong);position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--ink)}
.brand-mark{display:none}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.14em;line-height:1.2;display:flex;flex-direction:column}
.brand-text small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.05em}
.topnav{display:flex;gap:20px;flex-wrap:wrap}
.topnav a{text-decoration:none;color:var(--body);font-size:13.5px;letter-spacing:.04em}
.topnav a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:5px}

/* hero */
.hero{border-bottom:1px solid var(--line);padding:52px 0 36px;background:var(--bg)}
.hero-eyebrow{color:var(--muted);font-size:12.5px;letter-spacing:.24em;font-weight:600;margin-bottom:16px}
.hero h1{color:var(--ink);font-size:clamp(26px,4.6vw,40px);line-height:1.4;font-weight:800;letter-spacing:.01em;margin-bottom:16px}
.hero-sub{max-width:640px;color:var(--body);font-size:16px;margin-bottom:24px}

/* climate line — clinical data row */
.climate-strip{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);width:fit-content;background:transparent;border-radius:0}
.climate-strip span{padding:8px 20px 8px 0;font-size:13px;letter-spacing:.06em;color:var(--ink);font-weight:600;border:none}
.climate-strip span+span{padding-left:20px;border-left:1px solid var(--line-strong)}

/* sections */
.featured,.cat-section{padding:38px 0 6px}
.cat-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:6px;border-left:none;padding-left:0;border-bottom:2px solid var(--ink);padding-bottom:10px}
.cat-head h2{color:var(--ink);font-size:20px;font-weight:800;letter-spacing:.08em}
.cat-head p{color:var(--muted);font-size:13.5px}

/* article index rows (replaces cards) */
.grid{display:block;margin-bottom:26px}
.card{display:block;padding:18px 2px 16px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--body);border-radius:0;background:transparent}
.card:hover h3{text-decoration:underline;text-underline-offset:5px}
.card-meta{display:flex;gap:10px;font-size:12px;letter-spacing:.1em;color:var(--faint);font-weight:600;margin-bottom:4px}
.chip{background:none;color:var(--faint);padding:0;border-radius:0;font-weight:600;font-size:12px;letter-spacing:.1em}
.chip-deep{color:var(--ink)}
.chip-cat{color:var(--faint)}
.card h3{color:var(--ink);font-size:17.5px;line-height:1.55;font-weight:700;margin-bottom:4px}
.card p{font-size:14px;color:var(--muted);line-height:1.75;max-width:680px}
.card-lg h3{font-size:18.5px}
.card-foot{display:inline-block;margin-top:8px;font-size:13.5px;color:var(--ink);font-weight:600}
.card-foot::before{content:"— "}

/* article page */
.article-wrap{padding:36px 22px 20px;max-width:760px}
.crumbs{font-size:12.5px;color:var(--muted);margin-bottom:26px;letter-spacing:.06em}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--ink);text-decoration:underline}
.article-head{margin-bottom:6px}
.article-head .card-meta{margin-bottom:10px}
.article-head h1{color:var(--ink);font-size:clamp(25px,4.2vw,34px);line-height:1.45;font-weight:800;margin:6px 0 14px;letter-spacing:.01em}
.article-sub{color:var(--muted);font-size:15.5px;margin-bottom:22px;max-width:640px}
.article-head .climate-strip span{font-size:12px;padding:7px 16px 7px 0}
.article-head .climate-strip span+span{padding-left:16px}

.prose{background:transparent;border:none;border-radius:0;padding:8px 0 0;margin-top:18px}
.prose h2{color:var(--ink);font-size:21px;line-height:1.5;font-weight:800;margin:46px 0 14px;padding-top:22px;border-top:1px solid var(--line-strong);letter-spacing:.02em}
.prose h2:first-child{margin-top:8px;padding-top:0;border-top:none}
.prose h3{color:var(--ink);font-size:17.5px;font-weight:700;margin:30px 0 10px}
.prose h4{color:var(--ink);font-size:16px;font-weight:700;margin:22px 0 8px}
.prose p{margin:0 0 16px;max-width:70ch}
.prose strong{color:var(--ink)}
.prose ul,.prose ol{margin:0 0 18px;padding-left:24px;max-width:68ch}
.prose li{margin-bottom:6px}
.prose li::marker{color:var(--ink)}
.tablewrap{overflow-x:auto;margin:0 0 20px;border:1px solid var(--line-strong)}
.prose table{border-collapse:collapse;width:100%;font-size:14px;min-width:520px}
.prose th{background:var(--wash);color:var(--ink);text-align:left;padding:9px 13px;font-weight:700;white-space:nowrap;border-bottom:1px solid var(--line-strong)}
.prose td{padding:9px 13px;border-top:1px solid var(--line);vertical-align:top}

/* related */
.related{margin:48px 0 26px;border-top:2px solid var(--ink);padding-top:18px}
.related-title{color:var(--ink);font-size:17px;font-weight:800;letter-spacing:.12em;margin-bottom:4px;border-left:none;padding-left:0}
.related .card h3{font-size:16px}

/* footer */
.site-footer{background:var(--bg);border-top:2px solid var(--ink);color:var(--muted);padding:32px 0 44px;margin-top:36px}
.foot-brand{color:var(--ink);font-size:15px;font-weight:800;letter-spacing:.14em;margin-bottom:8px}
.foot-note{font-size:12.5px;max-width:560px;color:var(--muted);margin-bottom:16px}
.foot-nav{display:flex;gap:18px;flex-wrap:wrap}
.foot-nav a{color:var(--muted);font-size:13px;text-decoration:none}
.foot-nav a:hover{color:var(--ink);text-decoration:underline}

a:focus-visible{outline:2px solid var(--ink);outline-offset:3px}

@media(max-width:600px){
  .topnav{display:none}
  .hero{padding:38px 0 28px}
  .climate-strip{width:100%}
  .climate-strip span{flex:1 1 auto;padding:7px 10px 7px 0;font-size:12px}
  body{font-size:15.5px}
}