/* Bố cục: đồng bộ Kinh Lạc 3D (giấy kem, mực nâu, vàng đồng, đỏ son, Tahoma) – danh mục 2 cột (bộ lọc | lưới vị thuốc), bài chi tiết 2 cột (thông tin nhanh + mục lục | bài) */
:root{
  --bg:#F6EFE1; --surface:#FFF8EA; --surface2:#F9F0DC; --ink:#2F241C; --text:#4A3426; --muted:#7A6656; --line:#E6D6B8; --line2:#D9BF8C;
  --gold:#B88A44; --gold-dark:#8A6235; --gold-soft:#D7BA7A; --red:#8B2E24; --red-soft:#A94B3D; --brown:#4A3426; --herb:#5E6B45;
  --font:Tahoma,Geneva,Verdana,sans-serif; --r:10px;
  --shadow:0 6px 24px rgba(62,42,30,.10);
  color-scheme:light;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 var(--font);
  background-image:radial-gradient(900px 500px at 10% -10%,rgba(215,186,122,.22),transparent 60%),radial-gradient(800px 500px at 100% 0%,rgba(139,46,36,.06),transparent 60%);
  padding-block:12px 20px;padding-left:max(14px,env(safe-area-inset-left,0px));padding-right:max(14px,env(safe-area-inset-right,0px))}
button,input{font:inherit;color:inherit}
a{color:var(--red)}
.shell{max-width:1320px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.ribbon{background:var(--brown);color:#EFE3CC;font-size:12.5px;padding:7px 16px;border-radius:8px}
.ribbon b{color:var(--gold-soft);font-weight:600}
.topbar{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;box-shadow:var(--shadow);display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand-name{font:600 22px/1 var(--font);letter-spacing:.02em}
.brand-name em{font-style:normal;color:var(--red)}
.cur{border-left:1px solid var(--line);padding-left:14px;min-width:0}
.cur h1{font:600 17px/1.3 var(--font);margin:0;color:var(--ink)}
.cur .sub{font-size:12px;color:var(--muted)}
.tools{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.tbtn{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 12px;border-radius:6px;border:1px solid var(--line2);background:var(--surface);cursor:pointer;font-size:13px;color:var(--text);text-decoration:none;white-space:nowrap}
.tbtn:hover{border-color:var(--gold);color:var(--gold-dark)}
.tbtn.on{background:linear-gradient(135deg,var(--gold-dark),#6F4D2C);border-color:#6F4D2C;color:#fff}
.tbtn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card{background:linear-gradient(180deg,var(--surface),var(--surface2));border:1px solid rgba(184,138,68,.42);border-radius:var(--r);box-shadow:inset 0 0 0 4px var(--surface),inset 0 0 0 5px rgba(184,138,68,.18),var(--shadow);min-width:0}
.eyebrow{font-size:11px;letter-spacing:.1em;text-transform:uppercase;font-style:italic;color:var(--gold-dark)}

/* Danh mục */
.list{display:grid;grid-template-columns:260px minmax(0,1fr);gap:12px;align-items:start}
.filters{padding:14px;display:flex;flex-direction:column;gap:12px;position:sticky;top:12px}
.search{display:flex;align-items:center;gap:8px;border:1.5px solid var(--gold-soft);border-radius:999px;padding:0 14px;height:40px;background:#fff}
.search svg{width:16px;height:16px;stroke:var(--muted);fill:none;stroke-width:1.8}
.search input{border:0;outline:0;background:none;flex:1;min-width:0;height:100%}
.fgroup{display:flex;flex-direction:column;gap:6px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line2);background:var(--surface);border-radius:999px;padding:3px 10px;font-size:12.5px;cursor:pointer;color:var(--text)}
.chip i{width:8px;height:8px;border-radius:50%;flex:none}
.chip[aria-pressed="true"]{background:var(--gold-dark);border-color:var(--gold-dark);color:#fff}
.clear{align-self:flex-start;background:none;border:0;color:var(--red);cursor:pointer;padding:0;font-size:12.5px;text-decoration:underline}
.results{padding:14px 16px;display:flex;flex-direction:column;gap:12px}
.rhead{display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.hcard{display:flex;flex-direction:column;gap:6px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.hcard:hover{border-color:var(--gold);box-shadow:0 4px 14px rgba(62,42,30,.10)}
.hcard .nm{font-size:17px;font-weight:600;color:var(--red)}
.hcard .lt{font-size:12.5px;color:var(--muted);font-style:italic}
.hcard .tv{font-size:13px}
.dots{display:flex;flex-wrap:wrap;gap:4px 10px;font-size:12px;color:var(--text)}
.dots span{display:inline-flex;align-items:center;gap:5px}
.dots i{width:8px;height:8px;border-radius:50%}
.empty{padding:20px;text-align:center;color:var(--muted);border:1px dashed var(--line2);border-radius:10px}
.note{font-size:12.5px;color:var(--muted)}

/* Bài chi tiết */
.crumb{font-size:12.5px;color:var(--muted)} .crumb a{color:var(--gold-dark);text-decoration:none} .crumb a:hover{text-decoration:underline}
.detail{display:grid;grid-template-columns:300px minmax(0,1fr);gap:12px;align-items:start}
.aside{padding:16px;display:flex;flex-direction:column;gap:12px;position:sticky;top:12px;max-height:calc(100vh - 24px);overflow:auto}
.aside h2{margin:0;font:600 22px/1.25 var(--font);color:var(--ink)}
.aside .lt{font-style:italic;color:var(--muted);font-size:13px;margin-top:2px}
.facts{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.facts div{display:grid;grid-template-columns:96px minmax(0,1fr);gap:8px;padding:7px 0;border-bottom:1px solid var(--line);font-size:13px}
.facts dt{color:var(--gold-dark);font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;font-style:italic;padding-top:1px}
.facts dd{margin:0;color:var(--ink)}
.qklinks{display:flex;flex-direction:column;gap:6px}
.qk{display:flex;align-items:center;gap:8px;padding:7px 10px;border:1px solid var(--line2);border-radius:8px;background:var(--surface);text-decoration:none;color:var(--ink);font-size:13.5px}
.qk:hover{border-color:var(--gold);color:var(--red)}
.qk i{width:9px;height:9px;border-radius:50%;flex:none}
.qk small{margin-left:auto;color:var(--muted);font-size:11.5px}
.toc{display:flex;flex-direction:column;gap:2px;font-size:13px}
.toc a{color:var(--text);text-decoration:none;padding:4px 8px;border-radius:6px}
.toc a:hover{background:rgba(184,138,68,.14);color:var(--red)}
.art{padding:4px 0 10px}
/* Kiểu chữ bài viết: giống hệt khung đọc bài huyệt của Kinh Lạc 3D */
.reader-body{padding:8px 26px 30px;line-height:1.7;font-size:14.5px;overflow-wrap:break-word}
.reader-body h3{font:600 24px/1.3 var(--font);margin:18px 0 10px;color:var(--ink);text-wrap:balance}
.reader-body h4{font:600 18px/1.3 var(--font);margin:22px 0 6px;color:var(--red);scroll-margin-top:12px}
.reader-body h5{font-size:11.5px;margin:16px 0 4px;color:var(--gold-dark);font-style:italic;text-transform:uppercase;letter-spacing:.08em}
.reader-body p{margin:7px 0}
.reader-body .notice{border-left:3px solid var(--red-soft);background:rgba(169,75,61,.07);padding:9px 13px;border-radius:7px;margin:12px 0}
.reader-body .cite{font-size:10.5px;vertical-align:super;color:var(--gold-dark);text-decoration:none;margin-left:2px}
.tblwrap{overflow-x:auto;margin:12px 0}
.reader-body table{border-collapse:collapse;font-size:13.5px;min-width:100%}
.reader-body caption{text-align:left;font-weight:600;padding:4px 0;color:var(--muted)}
/* Tiêu đề và đề mục trong bài viết: rõ thứ bậc, không bó hẹp dòng */
.reader-body h3{font-family:inherit;font-size:27px;font-weight:700;line-height:1.3;color:var(--ink);text-wrap:wrap;max-width:none;margin:14px 0 14px;padding-bottom:12px;border-bottom:2px solid var(--line2);letter-spacing:0}
.reader-body h4{font-family:inherit;font-size:20px;font-weight:700;line-height:1.35;color:var(--red);margin:32px 0 12px;padding:9px 14px;background:linear-gradient(90deg,rgba(184,138,68,.18),rgba(184,138,68,.03));border-left:4px solid var(--red);border-radius:0 8px 8px 0;text-transform:none;letter-spacing:0;font-style:normal;scroll-margin-top:12px}
.reader-body h5{font-family:inherit;font-size:16.5px;font-weight:700;line-height:1.4;color:var(--gold-dark);margin:22px 0 8px;padding:0 0 0 11px;border-left:3px solid var(--gold);text-transform:none;letter-spacing:0;font-style:normal}
.reader-body h6{font-family:inherit;font-size:15px;font-weight:700;line-height:1.4;color:var(--ink);margin:16px 0 6px;text-transform:none;letter-spacing:0;font-style:normal}
@media (max-width:600px){ .reader-body h3{font-size:22px} .reader-body h4{font-size:17.5px;padding:8px 12px} .reader-body h5{font-size:15.5px} }

.reader-body th,.reader-body td{border:1px solid var(--line2);padding:7px 9px;vertical-align:top;text-align:left}
.reader-body th{background:rgba(184,138,68,.12)}
.refs{font-size:13px;padding-left:22px} .refs a{color:var(--red);word-break:break-word}
.qkbox{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:10px 0 14px;padding:10px 12px;border:1px solid var(--line2);border-radius:10px;background:rgba(184,138,68,.07)}
.qkbox b{font-size:13px;color:var(--gold-dark);margin-right:2px}
.qkbox a{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line2);background:var(--surface);border-radius:999px;padding:4px 12px;font-size:13.5px;text-decoration:none;color:var(--ink)}
.qkbox a:hover{border-color:var(--gold);color:var(--red)}
.qkbox a i{width:9px;height:9px;border-radius:50%}
.qkbox small{flex-basis:100%;color:var(--muted);font-size:12px}

.disclaimer{display:flex;gap:10px;align-items:flex-start;background:var(--brown);color:#EFE3CC;border-radius:8px;padding:9px 16px;font-size:12.5px;line-height:1.55}
.disclaimer svg{flex:none;width:18px;height:18px;stroke:var(--gold-soft);fill:none;stroke-width:1.6;margin-top:1px}
.disclaimer b{color:var(--gold-soft)} .disclaimer p{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
@media (max-width:900px){
  .list,.detail{grid-template-columns:1fr}
  .filters,.aside{position:static;max-height:none}
  .cur{border-left:0;padding-left:0;flex-basis:100%;order:3}
  .tools{margin-left:0}
  .toc-wrap{display:none}
  .reader-body{padding:6px 16px 24px}
}
@media (max-width:600px){ .brand-name{font-size:20px} .facts div{grid-template-columns:86px minmax(0,1fr)} }
@media (prefers-reduced-motion:reduce){ *{transition:none!important;scroll-behavior:auto!important} }

.detail{margin-top:0}.crumb{margin-bottom:-4px}.reader-body img{max-width:100%;height:auto;border-radius:8px}
.site-foot{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 18px;padding:4px 0 8px}.site-foot a{color:var(--gold-dark);font-size:13.5px;text-decoration:none;font-weight:600}.site-foot a:hover{color:var(--red);text-decoration:underline}
.hcard[hidden]{display:none}
html{overflow-x:hidden}@supports (overflow:clip){body{overflow-x:clip}}
@media (max-width:900px){input,select,textarea{font-size:16px!important}}

.related{margin-top:12px;padding:16px 18px 18px}.rel-head{margin-bottom:12px;padding-bottom:10px;border-bottom:2px solid var(--line2)}.rel-head h2{margin:0;font-size:24px;font-weight:700;line-height:1.3;color:var(--ink)}.rel-head p{margin:4px 0 0;font-size:14px;color:var(--muted)}
.related .hcard .why{font-size:12px;color:var(--gold-dark);border-top:1px dashed var(--line);padding-top:6px;margin-top:2px}.related .dots span{opacity:.6}.related .dots span.on{opacity:1;font-weight:700}
.rel-more{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:14px}.rel-more a{color:var(--red);font-size:13.5px;font-weight:600;text-decoration:none}.rel-more a:hover{text-decoration:underline}
@media (max-width:600px){.related{padding:12px}.rel-head h2{font-size:21px}.related .grid{grid-template-columns:1fr 1fr;gap:8px}.related .hcard{padding:10px}.related .hcard .nm{font-size:15.5px}.related .hcard .lt,.related .dots{display:none}.related .hcard .tv{font-size:12.5px}.related .hcard .why{font-size:11.5px}}