:root{
  --red:#B81E2D; --red-d:#931622; --green:#13934A; --green-d:#0E7339; --green-l:#E8F5EC;
  --ink:#1B2430; --muted:#5B6675; --line:#E3E8EE; --bg:#FFFFFF; --soft:#F6F8F7; --warn:#FFF4D6; --warn-ink:#8A5A00;
  --r:14px; --shadow:0 6px 24px rgba(20,40,30,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:'Be Vietnam Pro',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 16px}

/* top bar */
.top{background:var(--green-d);color:#fff;font-size:14px}
.top .wrap{display:flex;gap:18px;justify-content:space-between;align-items:center;padding:7px 16px;flex-wrap:wrap}
.top span{opacity:.95}
.top b{font-weight:700}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:48px;height:48px}
.brand .n1{font-weight:800;color:var(--red);font-size:17px;line-height:1.1}
.brand .n2{font-size:12px;color:var(--green-d);font-weight:600;letter-spacing:.04em}
.menu{display:flex;gap:22px;font-weight:500;font-size:15px}
.menu a:hover{color:var(--red)}
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:999px;font-weight:700;font-size:15px;border:2px solid transparent;cursor:pointer;transition:.15s;font-family:inherit}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:var(--red-d)}
.btn-ghost{border-color:var(--green);color:var(--green-d);background:#fff}.btn-ghost:hover{background:var(--green-l)}
.burger{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--ink)}

/* hero */
.hero{background:linear-gradient(180deg,var(--green-l),#fff 85%);padding:56px 0 40px;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;background:#fff;border:1px solid #CFE6D7;color:var(--green-d);font-weight:700;font-size:13px;padding:5px 12px;border-radius:999px;margin-bottom:16px}
.hero h1{font-size:44px;line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--red)}
.hero p.lead{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:26px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:560px}
.fact{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:12px 14px}
.fact b{display:block;font-size:20px;color:var(--green-d)}
.fact span{font-size:13px;color:var(--muted)}
.hero-art{position:relative;display:flex;justify-content:center}
.hero-art .ring{width:min(380px,90%);aspect-ratio:1;border-radius:50%;background:#fff;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}
.hero-art .ring img{width:88%}
.slogan{position:absolute;bottom:4%;left:50%;transform:translateX(-50%);background:var(--red);color:#fff;font-weight:800;padding:8px 18px;border-radius:999px;letter-spacing:.06em;font-size:14px;white-space:nowrap;box-shadow:var(--shadow)}

/* sections */
section{padding:64px 0}
.alt{background:var(--soft)}
.sh{text-align:center;max-width:680px;margin:0 auto 36px}
.sh .k{color:var(--red);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.sh h2{font-size:32px;line-height:1.25;margin:6px 0 10px;letter-spacing:-.01em}
.sh p{color:var(--muted)}

/* specialties */
.grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 16px;transition:.15s;position:relative}
.card:hover{border-color:var(--green);box-shadow:var(--shadow);transform:translateY(-2px)}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--green-l);color:var(--green-d);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.card .ic svg{width:26px;height:26px}
.card h3{font-size:16px;line-height:1.3;margin-bottom:4px}
.card p{font-size:13.5px;color:var(--muted)}
.card .bh{position:absolute;top:12px;right:12px;font-size:11px;font-weight:700;color:var(--red);background:#FDECEE;border-radius:6px;padding:2px 6px}

/* why */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.why div{padding:22px;border-radius:var(--r);background:#fff;border:1px solid var(--line)}
.why b{display:block;font-size:17px;margin:8px 0 4px}
.why p{color:var(--muted);font-size:14.5px}
.why .num{font-size:13px;font-weight:800;color:#fff;background:var(--green);border-radius:8px;padding:2px 9px}

/* BHYT steps */
.bhyt{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start}
.bhyt-box{background:var(--red);color:#fff;border-radius:20px;padding:30px}
.bhyt-box h3{font-size:24px;line-height:1.3;margin-bottom:10px}
.bhyt-box p{opacity:.92;margin-bottom:16px}
.bhyt-box ul{list-style:none;display:grid;gap:8px}
.bhyt-box li::before{content:"✓ ";font-weight:800}
.steps{display:grid;gap:12px;counter-reset:s}
.step{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.step::before{counter-increment:s;content:counter(s);flex:none;width:34px;height:34px;border-radius:50%;background:var(--green-l);color:var(--green-d);font-weight:800;display:flex;align-items:center;justify-content:center}
.step b{display:block}
.step span{color:var(--muted);font-size:14.5px}

/* price */
.tabs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:18px}
.tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;font-weight:600;font-size:14px;cursor:pointer;font-family:inherit;color:var(--ink)}
.tab.on{background:var(--green);border-color:var(--green);color:#fff}
.price{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.price table{width:100%;border-collapse:collapse}
.price td{padding:14px 18px;border-top:1px solid var(--line);font-size:15px}
.price tr:first-child td{border-top:0}
.price td:last-child{text-align:right;font-weight:700;color:var(--red);white-space:nowrap}
.note{text-align:center;color:var(--muted);font-size:13.5px;margin-top:12px}

/* doctors */
.docs{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.doc{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-align:center}
.doc .ph{aspect-ratio:4/4.3;background:linear-gradient(160deg,var(--green-l),#DDEFE3);display:flex;align-items:center;justify-content:center;color:#9BC4AA}
.doc .ph svg{width:70px;height:70px}
.doc div.t{padding:14px}
.doc b{display:block}
.doc span{font-size:13.5px;color:var(--muted)}

/* booking */
.book{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}
form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow)}
form h3{font-size:22px;margin-bottom:4px}
form .sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:block;font-size:13.5px;font-weight:600;margin:10px 0 5px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid #CDD5DE;border-radius:10px;font:inherit;font-size:15px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #A9D8B9;border-color:var(--green)}
.chk{display:flex;gap:8px;align-items:center;margin-top:12px;font-size:14.5px;font-weight:500}
.chk input{width:18px;height:18px}
form .btn{width:100%;margin-top:18px}
.ok{display:none;margin-top:12px;background:var(--green-l);color:var(--green-d);padding:10px 12px;border-radius:10px;font-size:14px;font-weight:600}
.contact{background:var(--green-d);color:#fff;border-radius:20px;padding:26px;display:flex;flex-direction:column;gap:16px}
.contact h3{font-size:22px}
.ci{display:flex;gap:12px;align-items:flex-start}
.ci .i{flex:none;width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center}
.ci .i svg{width:20px;height:20px}
.ci small{display:block;opacity:.8;font-size:12.5px}
.ci b{font-size:16px}
.map{flex:1;min-height:200px;border-radius:14px;overflow:hidden;border:0}
.map iframe{width:100%;height:100%;min-height:200px;border:0}

/* news */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.post{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.post .th{aspect-ratio:16/9;background:linear-gradient(135deg,#FDECEE,var(--green-l))}
.post div.t{padding:16px}
.post small{color:var(--green-d);font-weight:700;font-size:12.5px}
.post b{display:block;margin:4px 0 6px;line-height:1.35}
.post p{color:var(--muted);font-size:14px}

/* footer */
footer{background:#121A22;color:#C9D1DA;padding:44px 0 90px;font-size:14.5px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
footer h4{color:#fff;font-size:15px;margin-bottom:10px}
footer .brand .n1{color:#fff}
footer .brand .n2{color:#8FD3A8}
footer p,footer li{margin-bottom:6px}
footer ul{list-style:none}
footer a:hover{color:#fff}
.legal{border-top:1px solid #26313C;margin-top:26px;padding-top:16px;font-size:13px;color:#8C97A3}

/* floating */
.float{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:10px;z-index:60}
.float a{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.2);font-weight:800;font-size:13px}
.float .call{background:var(--red)}
.float .zalo{background:#0068FF}
.float svg{width:24px;height:24px}

/* responsive */
@media (max-width:1000px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .why,.docs{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line)}
  .menu.open{display:flex}
  .menu a{padding:14px 16px;border-top:1px solid var(--line)}
  .burger{display:block}
  .nav .btn-red{display:none}
  .hero{padding:32px 0 24px}
  .hero .wrap,.bhyt,.book,.fgrid{grid-template-columns:1fr}
  .hero-art{order:-1}
  .hero-art .ring{width:220px}
  .slogan{font-size:12px}
  .hero h1{font-size:31px}
  .hero p.lead{font-size:16px}
  .sh h2{font-size:26px}
  section{padding:46px 0}
  .news{grid-template-columns:1fr}
  .top .hide-m{display:none}
}
@media (max-width:520px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .facts{grid-template-columns:repeat(3,1fr);gap:8px}
  .fact{padding:10px}
  .fact b{font-size:16px}
  .fact span{font-size:11.5px}
  .row{grid-template-columns:1fr}
  .docs{grid-template-columns:repeat(2,1fr)}
  .card{padding:16px 12px}
  .cta{flex-direction:column}
  .cta .btn{width:100%}
}

/* ---- bổ sung ---- */
.notice{display:none;background:var(--red);color:#fff;text-align:center;font-size:14px;font-weight:600;padding:8px 16px}
.notice a{text-decoration:underline}
.page-hero{background:linear-gradient(180deg,var(--green-l),#fff);padding:44px 0 28px}
.page-hero h1{font-size:36px;line-height:1.2;letter-spacing:-.01em;margin-bottom:8px}
.page-hero p{color:var(--muted);max-width:720px}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:10px}
.crumb a{color:var(--green-d);font-weight:600}
.menu a.on{color:var(--red)}
.psearch{display:block;max-width:820px;margin:0 auto 14px;padding:12px 16px;border:1px solid #CDD5DE;border-radius:999px;font:inherit;font-size:15px;width:100%}
.price td small{display:block;color:var(--muted);font-weight:500;font-size:12.5px}
.doc .t p{font-size:13px;color:var(--muted);margin-top:6px}
.sched{max-width:980px;margin:28px auto 0;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:auto}
.sched table{width:100%;border-collapse:collapse;min-width:560px}
.sched th,.sched td{padding:12px 14px;border-top:1px solid var(--line);font-size:14.5px;text-align:left;vertical-align:top}
.sched th{background:var(--green-l);color:var(--green-d);border-top:0;font-size:13px;text-transform:uppercase;letter-spacing:.04em}
.slots{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.slot{border:1px solid #CDD5DE;background:#fff;border-radius:10px;padding:8px 12px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;color:var(--ink)}
.slot small{display:block;font-size:11px;font-weight:500;color:var(--muted)}
.slot.on{background:var(--green);border-color:var(--green);color:#fff}.slot.on small{color:#E1F3E7}
.slot:disabled{opacity:.4;cursor:not-allowed;text-decoration:line-through}
.hint{font-size:13px;color:var(--muted);margin-top:6px}
.consent{display:flex;gap:8px;align-items:flex-start;margin-top:12px;font-size:13px;color:var(--muted);font-weight:400}
.consent input{width:17px;height:17px;flex:none;margin-top:2px}
.consent a{color:var(--green-d);text-decoration:underline}
.faq{max-width:860px;margin:0 auto;display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:0 18px}
.faq summary{cursor:pointer;font-weight:700;padding:15px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";color:var(--green);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 16px;color:var(--muted);white-space:pre-line}
.faq .meta{font-size:12.5px;color:var(--green-d);font-weight:600;padding-bottom:4px;display:block}
.more{text-align:center;margin-top:22px}
.pk{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,360px));justify-content:center;gap:16px}
.pkc{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;position:relative}
.pkc.hot{border:2px solid var(--red);box-shadow:var(--shadow)}
.pkc .tag{position:absolute;top:-12px;left:20px;background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}
.pkc h3{font-size:19px;line-height:1.3}
.pkc .who{color:var(--muted);font-size:14px;margin:4px 0 12px}
.pkc ul{list-style:none;display:grid;gap:7px;margin-bottom:16px;flex:1;align-content:start}
.pkc li{font-size:14.5px;padding-left:22px;position:relative}
.pkc li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.pkc .pr{font-size:22px;font-weight:800;color:var(--red);margin-bottom:12px}
.jobs{max-width:900px;margin:0 auto;display:grid;gap:12px}
.job{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px}
.job h3{font-size:19px}
.job .meta{color:var(--muted);font-size:14px;margin:2px 0 10px}
.job h4{font-size:14px;margin:10px 0 4px;color:var(--green-d)}
.job p{white-space:pre-line;font-size:14.5px}
.empty{text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--r);padding:28px}
.formwrap{max-width:720px;margin:0 auto}
.legaltext{max-width:820px;margin:0 auto}
.legaltext h2{font-size:20px;margin:22px 0 8px}
.legaltext p,.legaltext li{color:#3A4552;margin-bottom:8px}
.legaltext ul{padding-left:20px}
/* chatbot */
.float .bot{background:var(--green)}
.chat{position:fixed;right:16px;bottom:84px;width:min(360px,calc(100vw - 32px));max-height:min(540px,calc(100vh - 110px));background:#fff;border-radius:18px;box-shadow:0 12px 40px rgba(0,0,0,.22);z-index:70;display:none;flex-direction:column;overflow:hidden}
.chat.open{display:flex}
.chat header{position:static;background:var(--green-d);color:#fff;padding:12px 14px;display:flex;align-items:center;gap:10px;border:0;backdrop-filter:none}
.chat header img{width:34px;height:34px;border-radius:50%;background:#fff}
.chat header b{display:block;font-size:15px}.chat header small{opacity:.85;font-size:12px}
.chat header button{margin-left:auto;background:none;border:0;color:#fff;font-size:22px;cursor:pointer}
.msgs{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:8px;background:var(--soft)}
.m{max-width:85%;padding:9px 12px;border-radius:14px;font-size:14.5px;line-height:1.45;white-space:pre-line}
.m.b{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.m.u{background:var(--green);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.m a{color:var(--green-d);font-weight:700;text-decoration:underline}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid #BFE0CB;background:#fff;color:var(--green-d);border-radius:999px;padding:6px 10px;font:inherit;font-size:13px;cursor:pointer;text-align:left}
.chat form{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line);background:#fff;box-shadow:none;border-radius:0}
.chat form input{flex:1;border-radius:999px}
.chat form button{border:0;background:var(--red);color:#fff;border-radius:999px;padding:0 16px;font-weight:700;cursor:pointer;font-family:inherit}
@media (max-width:820px){.page-hero h1{font-size:28px}}
@media (max-width:600px){.pk{grid-template-columns:1fr}}
.docs{grid-template-columns:repeat(auto-fit,minmax(200px,260px));justify-content:center}
@media (max-width:520px){.docs{grid-template-columns:repeat(2,1fr)}}
/* dịch vụ cận lâm sàng */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:820px){.svc{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.svc{grid-template-columns:1fr}}
/* sơ đồ tổ chức */
.org{--ln:#0E7339}
.org .lv{display:flex;flex-direction:column;align-items:center}
.org .vl{width:2px;height:20px;background:var(--ln)}
.org .nb{background:#fff;border:2px solid var(--ln);border-radius:12px;padding:10px 16px;text-align:center;min-width:260px;max-width:520px}
.org .nb.top{background:var(--green-d);color:#fff}
.org .nb.top small{color:#D7EFE0}
.org .nb b{display:block;font-size:16px;line-height:1.3}
.org .nb small{display:block;color:var(--muted);font-size:13.5px;margin-top:3px}
.org .nb .who{color:var(--red);font-weight:700;font-size:14px;margin-top:2px}
.org .nb.top .who{color:#FFD9DD}
.org .dirs{display:grid;gap:16px;margin-top:0;position:relative;padding-top:20px;border-top:2px solid var(--ln)}
.org .dir{display:flex;flex-direction:column;position:relative}
.org .dir::before{content:"";position:absolute;top:-20px;left:50%;width:2px;height:20px;background:var(--ln)}
.org .dir>.nb{background:var(--green-l);min-width:0;max-width:none}
.org .grps{display:grid;gap:12px;margin-top:12px}
.org .grp h4{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--green-d);margin:4px 0 6px;text-align:center}
.org .ou{background:#fff;border:1px solid var(--line);border-left:4px solid var(--ln);border-radius:8px;padding:8px 10px;margin-bottom:6px}
.org .ou b{display:block;font-size:14.5px;line-height:1.3}
.org .ou small{display:block;font-size:12.5px;color:var(--muted)}
.org .ou .who{display:block;font-size:13px;color:var(--red);font-weight:700}
.org .count{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:0 0 26px}
.org .count span{background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:14px}
.org .count b{color:var(--red)}
@media (max-width:900px){
  .org .dirs{grid-template-columns:1fr !important;border-top:0;padding-top:0}
  .org .dir::before{display:none}
  .org .dir{border-left:2px solid var(--ln);padding-left:12px;margin-top:6px}
  .org .grps{grid-template-columns:1fr !important}
}
.menu a{white-space:nowrap}
.brand .n1{white-space:nowrap}
@media (max-width:1180px){
  .menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line)}
  .menu.open{display:flex}
  .menu a{padding:14px 16px;border-top:1px solid var(--line)}
  .burger{display:block}
}
@media (min-width:1181px){.menu{gap:18px;font-size:14.5px}}
@media (max-width:420px){.brand .n1{font-size:15px}}