/* Saigon Medic — bộ nhận diện web "Signature" (03/11/2026, thay bản kem–xanh ngọc).
   Màu lấy từ logo SGM (xanh #0050A0, vàng #F0B010) + mực đêm + giấy ngà.
   Chữ: Noto Serif Display (tiêu đề mảnh, khổ lớn) + Manrope (thân). Chỉ giao diện sáng. */
:root{
  --giay:#FBFAF7; --giay-2:#F3F0EA; --giay-3:#ECE7DE;
  --muc:#0B1524; --muc-2:#334055; --mo:#5E6878; --vach:#E4DFD6; --vach-2:#D3CCC0;
  --dem:#07101C; --dem-2:#0D1A2C; --dem-3:#13243B;
  --tren-dem:#F4F1EA; --tren-dem-2:#B4BDCB; --vach-dem:rgba(255,255,255,.14);
  --lam:#0050A0; --lam-2:#003D7A; --lam-sang:#7FB2F0;
  --vang:#F0B010; --vang-2:#FFC53A; --vang-nhat:#FBF1D6;
  --rong:1240px; --san-khau:1440px;
  --r-xl:30px; --r-lg:22px; --r-md:14px; --r-sm:10px;
  --bong:0 1px 2px rgba(7,16,28,.05),0 28px 60px -32px rgba(7,16,28,.38);
  --bong-nhe:0 1px 2px rgba(7,16,28,.04),0 14px 34px -22px rgba(7,16,28,.30);
  --em:cubic-bezier(.22,.8,.2,1);
  --serif:"Noto Serif Display","Noto Serif",Georgia,serif;
  --sans:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  --cao-dau:74px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--giay);color:var(--muc);font:16.5px/1.7 var(--sans);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip}
html.menu-mo{overflow:hidden}
h1,h2,h3{margin:0;color:inherit;text-wrap:balance}
h1,h2{font-family:var(--serif);font-weight:300;letter-spacing:-.022em}
h1{font-size:clamp(2.45rem,6.2vw,5.1rem);line-height:1.06}
h2{font-size:clamp(1.95rem,4.2vw,3.25rem);line-height:1.1}
h3{font-family:var(--sans);font-weight:700;font-size:1.08rem;letter-spacing:-.005em;line-height:1.35}
p{margin:0 0 1em}
a{color:var(--lam)}
img{max-width:100%;display:block;height:auto}
strong{font-weight:700}
::selection{background:var(--vang);color:var(--muc)}
:focus-visible{outline:2px solid var(--lam);outline-offset:3px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--muc);color:#fff;padding:10px 16px;z-index:300;border-radius:10px}
.skip-link:focus{left:16px;top:16px}
section{scroll-margin-top:calc(var(--cao-dau) + 16px)}
.icon{width:1em;height:1em;flex:0 0 auto}

/* ---------- nút ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;
  padding:8px 10px 8px 22px;border-radius:var(--r-md);font:700 .98rem/1.1 var(--sans);letter-spacing:.005em;
  text-decoration:none;cursor:pointer;border:1px solid transparent;white-space:nowrap;
  transition:transform .35s var(--em),box-shadow .35s var(--em),background .25s,color .25s,border-color .25s}
.btn::after{content:"";width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--muc) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F0B010' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M13 6l6 6-6 6'/%3E%3C/svg%3E") center/18px no-repeat;
  transition:transform .35s var(--em)}
.btn:hover{transform:translateY(-2px)}
.btn:hover::after{transform:translateX(3px)}
.btn--vang{background:var(--vang);color:var(--muc);box-shadow:0 14px 30px -14px rgba(240,176,16,.75)}
.btn--vang:hover{background:var(--vang-2)}
.btn--vien,.btn--kinh{padding:8px 22px}
.btn--vien::after,.btn--kinh::after{display:none}
.btn--vien{background:transparent;color:var(--muc);border-color:var(--vach-2)}
.btn--vien:hover{border-color:var(--muc);background:var(--muc);color:#fff}
.btn--kinh{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.28);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.btn--kinh:hover{background:#fff;color:var(--muc);border-color:#fff}
.btn--nho{min-height:44px;font-size:.92rem;padding:6px 7px 6px 16px;gap:10px}
.btn--nho::after{width:30px;height:30px;border-radius:9px;background-size:16px}
.btn[disabled]{opacity:.65;cursor:progress;transform:none}

/* ---------- nhãn mục + đầu khối ---------- */
.nhan{display:flex;align-items:center;gap:12px;margin:0 0 18px;font:700 .74rem/1 var(--sans);
  letter-spacing:.2em;text-transform:uppercase;color:var(--lam)}
.nhan::after{content:"";width:34px;height:1px;background:currentColor;opacity:.45}
.nhan__so{font:italic 400 1.02rem/1 var(--serif);letter-spacing:0;text-transform:none}
.dau-khoi{margin:0 0 clamp(28px,4vw,52px);max-width:880px}
.dau-khoi h2{max-width:22ch}
.khoi__mo{margin:18px 0 0;max-width:58ch;color:var(--mo);font-size:1.06rem}

/* ---------- đầu trang ---------- */
.site-header{position:sticky;top:0;z-index:120;height:var(--cao-dau);border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}
/* lớp kính nằm ở ::before — KHÔNG đặt backdrop-filter lên chính header, vì nó biến header thành khung chứa
   cho phần tử position:fixed bên trong ⇒ menu toàn màn hình trên điện thoại bị nhốt trong 74px */
.site-header::before{content:"";position:absolute;inset:0;z-index:-1;background:color-mix(in srgb,var(--giay) 82%,transparent);
  backdrop-filter:saturate(1.5) blur(16px);-webkit-backdrop-filter:saturate(1.5) blur(16px);transition:background .3s}
.site-header.da-cuon{border-bottom-color:var(--vach);box-shadow:0 10px 30px -24px rgba(7,16,28,.5)}
.site-header.da-cuon::before{background:color-mix(in srgb,var(--giay) 93%,transparent)}
.site-header__trong{max-width:var(--san-khau);height:100%;margin:0 auto;padding:0 16px;
  display:flex;align-items:center;gap:20px}
.header__logo{display:block;flex:0 0 auto;line-height:0}
.header__logo-anh{height:38px;width:auto;border-radius:0}
.menu-nut{margin-left:auto;display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 16px;
  background:var(--muc);color:#fff;border:0;border-radius:12px;cursor:pointer;position:relative;z-index:130;
  font:700 .8rem/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;transition:background .3s,color .3s}
.menu-nut__icon{position:relative;width:16px;height:10px;flex:0 0 auto}
.menu-nut__icon::before,.menu-nut__icon::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:transform .4s var(--em)}
.menu-nut__icon::before{top:1px}
.menu-nut__icon::after{bottom:1px}
html.menu-mo .menu-nut{background:var(--vang);color:var(--muc)}
html.menu-mo .menu-nut__icon::before{transform:translateY(3.5px) rotate(45deg)}
html.menu-mo .menu-nut__icon::after{transform:translateY(-3.5px) rotate(-45deg)}
.menu-chinh{position:fixed;inset:0;z-index:125;background:var(--dem);color:var(--tren-dem);
  padding:calc(var(--cao-dau) + 24px) 24px 32px;display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transition:opacity .35s var(--em),visibility .35s;overflow:auto}
.menu-chinh.mo{opacity:1;visibility:visible}
.menu-chinh ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.menu-chinh li{border-bottom:1px solid var(--vach-dem)}
.menu-chinh a{color:inherit;text-decoration:none}
.menu-chinh ul a{display:flex;justify-content:space-between;align-items:center;padding:16px 2px;
  font:300 clamp(1.7rem,7vw,2.3rem)/1.15 var(--serif);letter-spacing:-.01em}
.menu-chinh ul a::after{content:"→";font:400 1.1rem var(--sans);color:var(--vang);opacity:.8}
.menu-chinh__chan{margin-top:auto;padding-top:28px;display:grid;gap:14px}
.menu-chinh__cta{width:100%}
.menu-chinh__hotline{display:block;text-align:center;color:var(--tren-dem-2);font-weight:600}
.menu-chinh__hotline strong{color:var(--vang);font-family:var(--serif);font-weight:400;font-size:1.25rem;margin-left:6px}
.header__actions{display:none}
@media (min-width:1000px){
  .site-header__trong{padding:0 28px;gap:28px}
  .menu-nut{display:none}
  .menu-chinh{position:static;inset:auto;opacity:1;visibility:visible;background:none;color:inherit;
    padding:0;flex-direction:row;align-items:center;justify-content:center;flex:1;overflow:visible}
  .menu-chinh ul{flex-direction:row;gap:4px}
  .menu-chinh li{border:0}
  .menu-chinh ul a{font:600 .92rem/1 var(--sans);letter-spacing:0;color:var(--muc-2);padding:10px 12px;position:relative}
  .menu-chinh ul a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1.5px;
    background:var(--vang);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--em);opacity:1}
  .menu-chinh ul a:hover{color:var(--muc)}
  .menu-chinh ul a:hover::after{transform:scaleX(1)}
  .menu-chinh__chan{display:none}
  .header__actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
  .header__hotline{display:flex;align-items:center;gap:9px;color:var(--muc);text-decoration:none;
    font:400 1.12rem/1 var(--serif);white-space:nowrap}
  .header__hotline .icon{width:18px;height:18px;color:var(--lam)}
}

/* ---------- hero sân khấu ---------- */
.hero{padding:8px 8px 0}
@media (min-width:700px){.hero{padding:10px 14px 0}}
.hero__khung{position:relative;max-width:var(--san-khau);margin:0 auto;border-radius:var(--r-lg);overflow:hidden;
  background:var(--dem);color:var(--tren-dem);isolation:isolate;
  min-height:min(860px,calc(100svh - var(--cao-dau) - 18px));display:flex;flex-direction:column;justify-content:flex-end}
@media (min-width:700px){.hero__khung{border-radius:var(--r-xl)}}
.hero__nen{position:absolute;inset:0;z-index:-2}
.hero__nen img{width:100%;height:100%;object-fit:cover;border-radius:0;transform:scale(1.06);
  animation:hero-lui 2.6s var(--em) .05s forwards}
@keyframes hero-lui{to{transform:scale(1)}}
.hero__phu-mau{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,16,28,.50) 0%,rgba(7,16,28,.74) 30%,rgba(7,16,28,.9) 55%,var(--dem) 100%)}
@media (min-width:900px){
  .hero__phu-mau{background:
    linear-gradient(90deg,rgba(7,16,28,.95) 0%,rgba(7,16,28,.86) 38%,rgba(7,16,28,.36) 70%,rgba(7,16,28,.14) 100%),
    linear-gradient(0deg,rgba(7,16,28,.85) 0%,rgba(7,16,28,0) 40%)}
}
.hero__noi-dung{position:relative;padding:clamp(120px,22vh,200px) 22px 30px;max-width:860px}
@media (min-width:700px){.hero__noi-dung{padding:120px 48px 40px}}
@media (min-width:1200px){.hero__noi-dung{padding:120px 72px 48px}}
.hero .breadcrumb{position:absolute;top:22px;left:22px;right:22px;padding:0;margin:0}
@media (min-width:700px){.hero .breadcrumb{left:48px;top:28px}}
@media (min-width:1200px){.hero .breadcrumb{left:72px}}
.hero .breadcrumb ol{color:var(--tren-dem-2)}
.hero .breadcrumb a{color:var(--tren-dem)}
.hero__nhan{display:flex;align-items:center;gap:12px;margin:0 0 22px;font:700 .74rem/1 var(--sans);letter-spacing:.22em;
  text-transform:uppercase;color:var(--vang)}
.hero__nhan::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--vang);transform:rotate(45deg)}
.hero h1{color:#fff;max-width:17ch}
.hero__phu{margin:24px 0 0;max-width:50ch;font-size:clamp(1.02rem,1.5vw,1.16rem);color:var(--tren-dem-2);line-height:1.7}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin:34px 0 0;align-items:center}
.hero__hotline{display:inline-flex;align-items:center;gap:10px;margin:22px 0 0;color:var(--tren-dem-2);text-decoration:none;font-weight:600;font-size:.95rem}
.hero__hotline .icon{width:18px;height:18px;color:var(--vang)}
.hero__hotline strong{font:400 1.32rem/1 var(--serif);color:#fff;letter-spacing:.01em}
.hero__ray{list-style:none;margin:0;padding:0 22px 22px;display:grid;gap:0;position:relative}
.hero__ray li{display:flex;gap:14px;align-items:baseline;padding:14px 0;border-top:1px solid var(--vach-dem);
  color:var(--tren-dem);font-size:.95rem;line-height:1.5}
.hero__ray-so{font:italic 400 .95rem/1 var(--serif);color:var(--vang);flex:0 0 22px}
.hero__ray-nhan{display:block;font:700 .68rem/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--tren-dem-2);margin-bottom:8px}
.hero__ray-gt{display:block;font:400 1.08rem/1.35 var(--serif);color:#fff}
@media (min-width:700px){
  .hero__ray{grid-template-columns:repeat(2,1fr);padding:0 48px 30px;column-gap:32px}
}
@media (min-width:1100px){
  .hero__ray{grid-template-columns:repeat(var(--so-cot,4),1fr);padding:0 72px 40px;column-gap:0}
  .hero__ray li{padding:22px 24px 4px 0;margin-right:24px;flex-direction:column;gap:12px;border-top:1px solid rgba(255,255,255,.22)}
  .hero__ray li:last-child{margin-right:0}
}
/* hero vào trang: chữ trồi nhẹ */
.js .hero__noi-dung>*{opacity:0;transform:translateY(16px);animation:troi .9s var(--em) forwards}
.js .hero__noi-dung>*:nth-child(2){animation-delay:.08s}
.js .hero__noi-dung>*:nth-child(3){animation-delay:.16s}
.js .hero__noi-dung>*:nth-child(4){animation-delay:.24s}
.js .hero__noi-dung>*:nth-child(5){animation-delay:.32s}
.js .hero__noi-dung>*:nth-child(6){animation-delay:.40s}
.js .hero__ray{opacity:0;animation:troi 1s var(--em) .45s forwards}
@keyframes troi{to{opacity:1;transform:none}}
/* hero không ảnh (trang kiến thức) */
.hero--chu .hero__khung{min-height:auto;background:
  radial-gradient(900px 420px at 85% 0%,rgba(0,80,160,.55),transparent 60%),
  radial-gradient(600px 300px at 0% 100%,rgba(240,176,16,.14),transparent 60%),var(--dem)}
.hero--chu .hero__noi-dung{padding-top:110px;padding-bottom:56px}
/* hero chân dung bác sĩ */
.hero--chan-dung .hero__khung{min-height:auto;display:grid;align-items:end;background:
  radial-gradient(800px 400px at 100% 0%,rgba(0,80,160,.45),transparent 60%),var(--dem)}
.hero--chan-dung .hero__chan-dung{padding:22px 22px 0;max-width:420px}
.hero--chan-dung .hero__chan-dung img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 18%;border-radius:var(--r-lg)}
@media (min-width:900px){
  .hero--chan-dung .hero__khung{grid-template-columns:1.25fr .75fr}
  .hero--chan-dung .hero__chan-dung{padding:56px 56px 56px 0;justify-self:end;width:100%}
  .hero--chan-dung .hero__ray{grid-column:1/-1}
}

/* ---------- khối chung ---------- */
.khoi{max-width:var(--rong);margin:0 auto;padding:clamp(64px,9vw,120px) 20px 0}
@media (min-width:700px){.khoi{padding-left:32px;padding-right:32px}}
main>.khoi:last-child,main>section:last-child{padding-bottom:clamp(64px,9vw,120px)}
.js .hien{opacity:0;transform:translateY(26px);transition:opacity 1s var(--em),transform 1s var(--em)}
.js .hien.da-hien{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .hien,.js .hero__noi-dung>*,.js .hero__ray{opacity:1!important;transform:none!important;animation:none!important;transition:none!important}
  .hero__nen img{animation:none;transform:none}
}

/* tóm lược (khối trả lời nhanh cho máy trả lời AI) */
.tom-luoc{display:grid;gap:18px}
.tom-luoc__nhan{display:flex;align-items:center;gap:10px;font:700 .74rem/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--lam)}
.tom-luoc__nhan .icon{width:20px;height:20px}
.tom-luoc__noi{border-top:1px solid var(--vach);padding-top:26px}
.tom-luoc__noi p{font:300 clamp(1.3rem,2.4vw,1.85rem)/1.5 var(--serif);color:var(--muc);margin:0;letter-spacing:-.005em}
.tom-luoc__noi p+p{margin-top:.8em}
.tom-luoc__noi strong{font-weight:500}
@media (min-width:900px){
  .tom-luoc{grid-template-columns:220px 1fr;gap:48px;align-items:start}
  .tom-luoc__nhan{padding-top:30px;border-top:1px solid var(--muc)}
}

/* dải số */
.so-lieu__luoi{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--vach)}
.so-lieu__o{padding:26px 18px 6px 0;border-bottom:1px solid var(--vach)}
.so-lieu__o:nth-child(odd){padding-right:18px;border-right:1px solid var(--vach)}
.so-lieu__o:nth-child(even){padding-left:18px}
.so-lieu__o strong{display:block;font:300 clamp(2rem,4.4vw,3.4rem)/1.05 var(--serif);color:var(--muc);letter-spacing:-.02em;margin-bottom:12px}
.so-lieu__o span{display:block;font-weight:600;color:var(--muc-2);line-height:1.45;font-size:.96rem}
.so-lieu__o small{display:block;margin:10px 0 18px;color:var(--mo);font-size:.78rem;line-height:1.45}
@media (min-width:900px){
  .so-lieu__luoi{grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--vach)}
  .so-lieu__o,.so-lieu__o:nth-child(odd),.so-lieu__o:nth-child(even){padding:34px 28px 10px;border:0;border-right:1px solid var(--vach)}
  .so-lieu__o:first-child{padding-left:0}
  .so-lieu__o:last-child{border-right:0}
}
/* một số duy nhất → dải đánh giá */
.so-lieu--mot .so-lieu__luoi{display:flex;flex-direction:column;align-items:center;text-align:center;border:0;
  background:var(--giay-2);border-radius:var(--r-xl);padding:clamp(40px,6vw,72px) 24px}
.so-lieu--mot .so-lieu__o,.so-lieu--mot .so-lieu__o:nth-child(odd){border:0;padding:0}
.so-lieu--mot .so-lieu__o strong{font-size:clamp(3.4rem,8vw,6rem);color:var(--muc)}
.so-lieu--mot .so-lieu__o span{font-family:var(--serif);font-weight:300;font-size:clamp(1.15rem,2vw,1.45rem);color:var(--muc-2);max-width:36ch;margin:0 auto}

/* cửa dịch vụ (thẻ có ảnh) */
.cua__luoi{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:700px){.cua__luoi{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.cua__luoi{grid-template-columns:repeat(3,1fr);gap:18px}}
.cua{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:440px;
  border-radius:var(--r-lg);overflow:hidden;text-decoration:none;color:#fff;isolation:isolate;background:var(--dem)}
@media (min-width:1000px){.cua{min-height:560px}}
.cua__anh{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;z-index:-2;transition:transform 1.1s var(--em)}
.cua::before{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,16,28,.05) 0%,rgba(7,16,28,0) 22%,rgba(7,16,28,.66) 52%,rgba(7,16,28,.97) 100%)}
.cua:hover .cua__anh{transform:scale(1.06)}
.cua__noi{padding:26px 26px 28px}
.cua__so{display:block;font:italic 400 1rem/1 var(--serif);color:var(--vang);margin-bottom:14px}
.cua__ten{display:block;font:300 clamp(1.6rem,2.4vw,2.05rem)/1.15 var(--serif);letter-spacing:-.01em;margin-bottom:10px}
.cua__noi p{margin:0;color:var(--tren-dem-2);font-size:.95rem;max-width:38ch}
.cua__mui{position:absolute;top:22px;right:22px;width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:background .3s,transform .5s var(--em),color .3s}
.cua__mui .icon{width:20px;height:20px}
.cua:hover .cua__mui{background:var(--vang);color:var(--muc);border-color:var(--vang);transform:rotate(-45deg)}

/* mục lục (thẻ không ảnh) */
.muc-luc{list-style:none;margin:0;padding:0;border-top:1px solid var(--muc)}
.muc-luc__dong{display:grid;grid-template-columns:44px 1fr auto;gap:6px 14px;align-items:baseline;
  padding:22px 4px;border-bottom:1px solid var(--vach);text-decoration:none;color:var(--muc);
  transition:background .35s var(--em),padding .35s var(--em)}
.muc-luc__so{font:italic 400 1rem/1 var(--serif);color:var(--lam)}
.muc-luc__ten{font:300 clamp(1.3rem,2.3vw,1.85rem)/1.25 var(--serif);letter-spacing:-.01em}
.muc-luc__mo{grid-column:2/3;color:var(--mo);font-size:.95rem;line-height:1.6}
.muc-luc__mui{grid-row:1/3;grid-column:3;align-self:center;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--vach-2);display:flex;align-items:center;justify-content:center;color:var(--muc);
  transition:background .3s,border-color .3s,transform .45s var(--em),color .3s}
.muc-luc__mui .icon{width:18px;height:18px}
a.muc-luc__dong:hover{background:var(--giay-2);padding-left:16px;padding-right:16px}
a.muc-luc__dong:hover .muc-luc__mui{background:var(--muc);border-color:var(--muc);color:var(--vang);transform:rotate(-45deg)}
@media (min-width:900px){
  .muc-luc__dong{grid-template-columns:64px minmax(0,1.05fr) minmax(0,1fr) 52px;gap:24px;align-items:center;padding:28px 6px}
  .muc-luc__mo{grid-column:auto;margin:0}
  .muc-luc__mui{grid-row:auto;grid-column:auto}
}
.muc-luc--khong-link .muc-luc__dong{grid-template-columns:44px 1fr}
@media (min-width:900px){.muc-luc--khong-link .muc-luc__dong{grid-template-columns:64px minmax(0,1.05fr) minmax(0,1fr)}}

/* dải ảnh thiết bị */
.dai-anh{max-width:var(--san-khau);margin:0 auto;padding:clamp(64px,9vw,120px) 8px 0}
@media (min-width:700px){.dai-anh{padding-left:14px;padding-right:14px}}
.dai-anh__khung{position:relative;margin:0;border-radius:var(--r-xl);overflow:hidden;background:var(--dem);isolation:isolate}
.dai-anh__anh{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:0;transform:scale(1.08);transition:transform 1.8s var(--em)}
.dai-anh.da-hien .dai-anh__anh,.dai-anh:not(.hien) .dai-anh__anh{transform:scale(1)}
.dai-anh__khung::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,16,28,.92) 0%,rgba(7,16,28,.25) 55%,rgba(7,16,28,0) 75%)}
.dai-anh__chu-thich{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:26px 22px;color:#fff}
.dai-anh__chu-thich .nhan{color:var(--vang);margin-bottom:14px}
.dai-anh__chu-thich p{margin:0;font:300 clamp(1.25rem,2.6vw,2.1rem)/1.35 var(--serif);max-width:34ch;letter-spacing:-.01em}
.dai-anh__chu-thich p.nhan{font:700 .74rem/1 var(--sans);letter-spacing:.2em;max-width:none;margin:0 0 16px}
@media (min-width:700px){
  .dai-anh__anh{aspect-ratio:21/9}
  .dai-anh__chu-thich{padding:44px 56px}
}

/* các bước — dòng thời gian */
.cac-buoc__ds{list-style:none;margin:0;padding:0;display:grid;gap:0;counter-reset:b}
.cac-buoc__ds li{position:relative;display:grid;grid-template-columns:56px 1fr;gap:0 16px;padding:0 0 30px}
.cac-buoc__ds li::before{content:"";position:absolute;left:21px;top:46px;bottom:0;width:1px;background:var(--vach-2)}
.cac-buoc__ds li:last-child::before{display:none}
.buoc__so{width:44px;height:44px;border-radius:50%;border:1px solid var(--muc);display:flex;align-items:center;justify-content:center;
  font:italic 400 1.02rem/1 var(--serif);color:var(--muc);background:var(--giay)}
.cac-buoc__ds li:first-child .buoc__so{background:var(--muc);color:var(--vang)}
.buoc__ten{display:block;font:400 1.35rem/1.25 var(--serif);letter-spacing:-.01em;margin:8px 0 8px}
.cac-buoc__ds p{margin:0;color:var(--mo);font-size:.96rem}
@media (min-width:900px){
  .cac-buoc__ds{grid-template-columns:repeat(var(--so-buoc,4),1fr);gap:28px}
  .cac-buoc__ds li{grid-template-columns:1fr;padding:0}
  .cac-buoc__ds li::before{left:56px;right:-28px;top:22px;bottom:auto;width:auto;height:1px}
  .buoc__ten{margin:26px 0 10px}
}

/* cảnh báo / ghi chú quan trọng */
.khoi.canh-bao{padding-top:clamp(40px,5vw,64px)}
.canh-bao__hop{display:flex;gap:16px;align-items:flex-start;background:var(--vang-nhat);border-radius:var(--r-lg);
  padding:22px 24px;border:1px solid rgba(240,176,16,.45)}
.canh-bao__hop .icon{width:24px;height:24px;color:#8A5A00;margin-top:2px}
.canh-bao__hop p{margin:0;font-weight:600;color:#3D2A00}

/* bảng */
.bang-cuon{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--vach);background:#fff;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;min-width:560px;font-size:.96rem}
th,td{padding:16px 20px;text-align:left;vertical-align:top;border-bottom:1px solid var(--vach)}
thead th{background:var(--dem);color:var(--tren-dem);font:600 .78rem/1.3 var(--sans);letter-spacing:.14em;text-transform:uppercase}
tbody tr:last-child td{border-bottom:0}
tbody td:first-child{font-weight:700;color:var(--muc)}
tbody tr:hover td{background:var(--giay)}
.bang-gia__ghi{color:var(--mo);font-size:.86rem;margin-top:14px}

/* bác sĩ */
.luoi-bs{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(220px,64%);gap:14px;overflow-x:auto;
  scroll-snap-type:x mandatory;padding:4px 20px 18px;margin:0 -20px;scrollbar-width:none}
.luoi-bs::-webkit-scrollbar{display:none}
@media (min-width:700px){.luoi-bs{grid-auto-columns:minmax(220px,38%);margin:0 -32px;padding:4px 32px 18px}}
@media (min-width:1000px){.luoi-bs{grid-auto-flow:row;grid-template-columns:repeat(4,1fr);overflow:visible;margin:0;padding:0;gap:28px 20px}}
.the-bs{scroll-snap-align:start;display:block;text-decoration:none;color:var(--muc)}
.the-bs__khung{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--giay-3);aspect-ratio:4/5;margin-bottom:16px}
.the-bs__khung::after{content:"";position:absolute;inset:auto 0 0;height:40%;background:linear-gradient(0deg,rgba(7,16,28,.35),transparent)}
.the-bs__anh{width:100%;height:100%;object-fit:cover;object-position:50% 15%;border-radius:0;transition:transform .9s var(--em),filter .6s}
.the-bs:hover .the-bs__anh{transform:scale(1.05)}
.the-bs strong{display:block;font:400 1.22rem/1.3 var(--serif);letter-spacing:-.005em}
.the-bs span{display:block;font-size:.86rem;font-weight:700;color:var(--lam);margin-top:6px}
.the-bs small{display:block;font-size:.86rem;color:var(--mo);margin-top:2px}
.luoi-bac-si__chan{margin-top:34px}

/* chữ biên tập */
.chu__khung{max-width:760px}
.chu__noi{font-size:1.04rem;color:var(--muc-2)}
.chu__noi p{margin:0 0 1.1em}
.chu__noi h3{font:400 1.5rem/1.3 var(--serif);letter-spacing:-.01em;color:var(--muc);margin:1.8em 0 .6em}
.chu__noi h4{font:700 1.02rem/1.4 var(--sans);color:var(--muc);margin:1.5em 0 .5em}
.chu__noi strong{color:var(--muc)}
.chu__noi ul,.chu__noi ol{padding-left:0;margin:0 0 1.2em;list-style:none}
.chu__noi li{position:relative;padding-left:28px;margin:0 0 .6em}
.chu__noi ul li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;background:var(--vang);transform:rotate(45deg);border-radius:1px}
.chu__noi ol{counter-reset:o}
.chu__noi ol li{counter-increment:o}
.chu__noi ol li::before{content:counter(o,decimal-leading-zero);position:absolute;left:0;top:.1em;font:italic 400 .95rem var(--serif);color:var(--lam)}
.chu__noi a{text-decoration-thickness:1px;text-underline-offset:3px}
.chu__noi table{margin:1.2em 0}
.chu__noi blockquote{margin:1.6em 0;padding:4px 0 4px 22px;border-left:2px solid var(--vang);font:300 1.3rem/1.5 var(--serif);color:var(--muc)}

/* hai cột */
.hai-cot{display:grid;gap:32px}
.hai-cot__anh img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg)}
.hai-cot__chu h2{margin-bottom:20px}
.hai-cot__chu{color:var(--muc-2)}
@media (min-width:900px){.hai-cot{grid-template-columns:1fr 1fr;align-items:center;gap:64px}}

/* thư viện ảnh */
.thu-vien__luoi{display:grid;gap:10px;grid-template-columns:repeat(2,1fr)}
@media (min-width:800px){.thu-vien__luoi{grid-template-columns:repeat(4,1fr);gap:14px}}
.thu-vien__anh{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:var(--r-md)}
.thu-vien__luoi img:first-child{grid-column:span 2;grid-row:span 2;aspect-ratio:auto;height:100%}

/* trích dẫn */
.trich-dan blockquote{margin:0;max-width:30ch;font:300 clamp(1.7rem,3.4vw,2.7rem)/1.3 var(--serif);letter-spacing:-.015em;position:relative;padding-top:56px}
.trich-dan blockquote::before{content:"“";position:absolute;top:-18px;left:-4px;font:400 6rem/1 var(--serif);color:var(--vang)}
.trich-dan footer{margin-top:22px;font:600 .9rem var(--sans);color:var(--mo)}

/* dải kêu gọi */
.dai-cta__khung{position:relative;overflow:hidden;isolation:isolate;border-radius:var(--r-xl);background:var(--dem);color:var(--tren-dem);
  padding:clamp(44px,7vw,96px) clamp(24px,6vw,88px);display:grid;gap:30px}
.dai-cta__khung::before{content:"";position:absolute;z-index:-1;width:720px;height:720px;right:-220px;top:-320px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,176,16,.28),rgba(240,176,16,0) 62%)}
.dai-cta__khung::after{content:"";position:absolute;z-index:-1;width:620px;height:620px;left:-260px;bottom:-360px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,80,160,.55),rgba(0,80,160,0) 65%)}
.dai-cta .nhan{color:var(--vang)}
.dai-cta h2{color:#fff;max-width:18ch}
.dai-cta__noi>p:not(.nhan){color:var(--tren-dem-2);margin:18px 0 0;max-width:46ch}
.dai-cta__hanh-dong{display:flex;flex-wrap:wrap;gap:18px 26px;align-items:center}
.dai-cta__hotline{color:var(--tren-dem-2);text-decoration:none;font-weight:600}
.dai-cta__hotline strong{display:block;font:300 clamp(1.9rem,3.6vw,2.7rem)/1.1 var(--serif);color:#fff;margin-top:4px;letter-spacing:.01em}
@media (min-width:900px){.dai-cta__khung{grid-template-columns:1.3fr .9fr;align-items:end}.dai-cta__hanh-dong{justify-content:flex-end}}

/* form đặt lịch */
.dat-lich__khung{display:grid;border-radius:var(--r-xl);overflow:hidden;background:#fff;box-shadow:var(--bong);border:1px solid var(--vach)}
.dat-lich__ben{background:var(--dem);color:var(--tren-dem);padding:clamp(30px,5vw,56px);position:relative;overflow:hidden;isolation:isolate}
.dat-lich__ben::after{content:"";position:absolute;z-index:-1;width:520px;height:520px;right:-260px;bottom:-260px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,176,16,.22),transparent 62%)}
.dat-lich__ben .nhan{color:var(--vang)}
.dat-lich__ben h2{color:#fff;font-size:clamp(1.9rem,3.4vw,2.7rem)}
.dat-lich__ben .khoi__mo{color:var(--tren-dem-2)}
.dat-lich__thong-tin{list-style:none;margin:34px 0 0;padding:0;display:grid;gap:0}
.dat-lich__thong-tin li{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--vach-dem);font-size:.95rem;color:var(--tren-dem)}
.dat-lich__thong-tin .icon{width:20px;height:20px;color:var(--vang);margin-top:3px}
.dat-lich__thong-tin a{color:#fff;text-decoration:none;font:400 1.2rem/1.3 var(--serif)}
.form-sgm{padding:clamp(26px,4.5vw,52px)}
@media (min-width:960px){.dat-lich__khung{grid-template-columns:.9fr 1.1fr}}
.form-sgm__luoi{display:grid;gap:18px 16px;grid-template-columns:1fr}
@media (min-width:640px){.form-sgm__luoi{grid-template-columns:repeat(2,1fr)}}
.form-sgm label{display:flex;flex-direction:column;gap:8px;font:700 .74rem/1.2 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muc-2)}
.form-sgm__luoi label:has(textarea){grid-column:1/-1}
.form-sgm input,.form-sgm select,.form-sgm textarea{min-height:54px;width:100%;border:1px solid var(--vach-2);border-radius:var(--r-sm);
  padding:14px 16px;font:500 1rem/1.4 var(--sans);letter-spacing:0;text-transform:none;background:var(--giay);color:var(--muc);
  transition:border-color .25s,box-shadow .25s,background .25s;-webkit-appearance:none;appearance:none}
.form-sgm select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B1524' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:18px;padding-right:44px}
.form-sgm input:focus,.form-sgm select:focus,.form-sgm textarea:focus{outline:0;border-color:var(--lam);background:#fff;box-shadow:0 0 0 4px rgba(0,80,160,.12)}
.form-sgm textarea{min-height:110px;resize:vertical}
.form-sgm__dong-y{display:flex!important;flex-direction:row!important;gap:12px!important;align-items:flex-start;margin:22px 0;
  font:500 .9rem/1.55 var(--sans)!important;letter-spacing:0!important;text-transform:none!important;color:var(--mo)!important}
.form-sgm__dong-y input{width:22px;height:22px;min-height:0;padding:0;flex:0 0 auto;margin-top:1px;border-radius:6px;
  -webkit-appearance:auto;appearance:auto;accent-color:var(--muc)}
.form-sgm button[type="submit"]{width:100%}
@media (min-width:640px){.form-sgm button[type="submit"]{width:auto}}
.form-sgm__trang-thai{min-height:1.4em;margin:14px 0 0;font-weight:700}
.form-sgm__trang-thai[data-trang-thai="loi"]{color:#B42318}
.form-sgm__trang-thai[data-trang-thai="ok"],.form-sgm__trang-thai[data-trang-thai="dang-gui"]{color:var(--lam)}

/* máy tính theo số người */
.may-tinh-doan__o{background:#fff;border:1px solid var(--vach);border-radius:var(--r-xl);padding:clamp(24px,4vw,44px);box-shadow:var(--bong-nhe);max-width:760px}
.may-tinh-doan__o label{display:flex;flex-direction:column;gap:12px;font:700 .74rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--muc-2)}
.may-tinh-doan__o input{width:100%;border:0;border-bottom:1px solid var(--muc);border-radius:0;padding:10px 0;background:transparent;
  font:300 clamp(2.4rem,6vw,4rem)/1.1 var(--serif);color:var(--muc);letter-spacing:-.02em;text-transform:none}
.may-tinh-doan__o input:focus{outline:0;border-bottom-color:var(--lam)}
.may-tinh-doan__ket-qua{margin:18px 0 0;min-height:1.4em;font:400 1.15rem/1.5 var(--serif);color:var(--lam)}

/* chọn gói */
.chon-goi__khung{background:#fff;border:1px solid var(--vach);border-radius:var(--r-xl);padding:clamp(24px,4vw,44px);box-shadow:var(--bong-nhe)}
.chon-goi__buoc>p{font:400 1.3rem/1.4 var(--serif);margin:0 0 18px}
.chon-goi__nut{display:grid;gap:12px;grid-template-columns:1fr}
@media (min-width:760px){.chon-goi__nut{grid-template-columns:repeat(3,1fr)}}
.chon-goi__nut button{min-height:84px;padding:18px 20px;border-radius:var(--r-md);border:1px solid var(--vach-2);background:var(--giay);
  color:var(--muc);font:600 1rem/1.4 var(--sans);text-align:left;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;
  transition:border-color .25s,background .25s,transform .35s var(--em)}
.chon-goi__nut button::after{content:"→";color:var(--lam);font-weight:700}
.chon-goi__nut button:hover{border-color:var(--muc);background:#fff;transform:translateY(-2px)}
.chon-goi__ket-qua{background:var(--dem);color:var(--tren-dem);border-radius:var(--r-lg);padding:24px;margin-top:6px}
.chon-goi__ket-qua p{font:300 1.35rem/1.4 var(--serif);margin:0 0 16px}
.chon-goi__ket-qua strong{color:#fff;font-weight:500}

/* hạng lái xe */
.hang-lai-xe__luoi{display:grid;gap:16px}
@media (min-width:800px){.hang-lai-xe__luoi{grid-template-columns:repeat(2,1fr);gap:20px}}
.hang-lai-xe__nhom{background:#fff;border:1px solid var(--vach);border-radius:var(--r-xl);padding:clamp(22px,3.4vw,36px)}
.hang-lai-xe__nhom h3{font:400 1.45rem/1.3 var(--serif);margin:0 0 18px;padding-bottom:16px;border-bottom:1px solid var(--vach)}
.hang-lai-xe__nhom ul{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.hang-lai-xe__nhom li{display:flex;gap:16px;align-items:flex-start;color:var(--muc-2)}
.hang-lai-xe__nhom li strong{flex:0 0 auto;min-width:52px;height:40px;padding:0 10px;border-radius:10px;background:var(--dem);color:var(--vang);
  display:flex;align-items:center;justify-content:center;font:400 1.15rem/1 var(--serif)}

/* hỏi đáp */
.faq__khung{display:grid;gap:30px}
@media (min-width:960px){.faq__khung{grid-template-columns:.8fr 1.2fr;gap:72px}.faq__dau{position:sticky;top:calc(var(--cao-dau) + 32px);align-self:start}}
.faq__dau p.khoi__mo a{color:var(--muc);font-weight:700;text-decoration:none;border-bottom:1px solid var(--vang)}
.faq__ds{border-top:1px solid var(--muc)}
.faq__muc{border-bottom:1px solid var(--vach)}
.faq__muc summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:24px 0;font:400 clamp(1.12rem,1.8vw,1.32rem)/1.4 var(--serif);color:var(--muc)}
.faq__muc summary::-webkit-details-marker{display:none}
.faq__muc summary::after{content:"";flex:0 0 auto;width:36px;height:36px;border-radius:50%;border:1px solid var(--vach-2);
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B1524' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center/16px no-repeat;
  transition:transform .4s var(--em),background-color .3s}
.faq__muc[open] summary::after{transform:rotate(45deg);background-color:var(--vang);border-color:var(--vang)}
.faq__muc p{margin:0 0 24px;color:var(--mo);max-width:62ch}

/* liên hệ */
.lien-he__luoi{display:grid;gap:0;grid-template-columns:1fr;border-top:1px solid var(--muc)}
.lien-he__luoi>div{padding:22px 0;border-bottom:1px solid var(--vach)}
.lien-he__luoi strong{display:block;font:700 .72rem/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--lam);margin-bottom:12px}
.lien-he__luoi p{margin:0;font:300 1.3rem/1.4 var(--serif);color:var(--muc)}
.lien-he__luoi a{color:var(--muc);text-decoration:none}
@media (min-width:800px){.lien-he__luoi{grid-template-columns:repeat(3,1fr)}.lien-he__luoi>div{padding:26px 28px 26px 0}.lien-he__luoi>div+div{padding-left:28px;border-left:1px solid var(--vach)}}
.lien-he__ban-do{margin-top:28px;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--vach);background:var(--giay-2)}
.lien-he__ban-do iframe{width:100%;height:clamp(300px,42vw,440px);border:0;display:block;filter:saturate(.7) contrast(1.05)}

/* sơ đồ trang */
.breadcrumb{max-width:var(--rong);margin:0 auto;padding:18px 20px 0}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;font:600 .8rem/1.4 var(--sans);color:var(--mo)}
.breadcrumb li+li::before{content:"/";margin-right:8px;opacity:.5}
.breadcrumb a{color:var(--muc);text-decoration:none}

/* ---------- chân trang ---------- */
.site-footer{background:var(--dem);color:var(--tren-dem-2);margin-top:0;padding:clamp(56px,8vw,96px) 20px 120px;position:relative;overflow:hidden}
@media (min-width:1000px){.site-footer{padding-bottom:40px}}
.site-footer__trong{max-width:var(--rong);margin:0 auto;display:grid;gap:40px}
@media (min-width:860px){.site-footer__trong{grid-template-columns:1.4fr 1fr 1fr;gap:56px}}
.site-footer a{color:var(--tren-dem);text-decoration:none}
.site-footer a:hover{color:var(--vang)}
.site-footer__phap-ly .site-footer__ten{font:300 clamp(1.7rem,3vw,2.3rem)/1.2 var(--serif);color:#fff;margin:0 0 20px;letter-spacing:-.01em;max-width:16ch}
.site-footer__phap-ly p{margin:0 0 10px;font-size:.9rem;line-height:1.65}
.site-footer__cot-ten{font:700 .7rem/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--vang);margin:6px 0 18px}
.site-footer__lien-ket{display:flex;flex-direction:column;gap:12px;font-size:.95rem}
.site-footer__hotline{font:300 2rem/1.1 var(--serif)!important;color:#fff!important;letter-spacing:.01em}
.site-footer__chu-lon{max-width:var(--san-khau);margin:clamp(48px,7vw,88px) auto 0;font:300 clamp(3.6rem,15.5vw,13.5rem)/.9 var(--serif);
  letter-spacing:-.045em;color:transparent;-webkit-text-stroke:1px rgba(244,241,234,.22);white-space:nowrap;text-align:center;user-select:none;padding-bottom:.14em;overflow:hidden}
.site-footer__cay{max-width:var(--rong);margin:28px auto 0;padding-top:22px;border-top:1px solid var(--vach-dem);font-size:.8rem;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}

/* thanh liên hệ nổi trên điện thoại */
.dai-di-dong{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:110;display:flex;gap:6px;padding:6px;
  background:rgba(7,16,28,.88);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);
  border:1px solid rgba(255,255,255,.12);border-radius:18px;box-shadow:0 18px 40px -16px rgba(7,16,28,.6);
  transition:transform .45s var(--em),opacity .45s}
.dai-di-dong.an{transform:translateY(140%);opacity:0}
.dai-di-dong a{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;min-height:50px;border-radius:13px;
  color:#fff;text-decoration:none;font:700 .92rem/1 var(--sans)}
.dai-di-dong a .icon{width:18px;height:18px;color:var(--vang)}
.dai-di-dong a:last-child{background:var(--vang);color:var(--muc)}
.dai-di-dong a:last-child .icon{color:var(--muc)}
@media (min-width:1000px){.dai-di-dong{display:none}}

.img-ph{aspect-ratio:4/3;background:var(--giay-2);border:1px dashed var(--vach-2);border-radius:var(--r-md)}

/* cửa chữ lớn — khi chưa có ảnh thật đúng ngữ cảnh */
.cua--chu{background:
  radial-gradient(520px 380px at 100% 0%,rgba(0,80,160,.6),transparent 62%),
  radial-gradient(420px 320px at 0% 100%,rgba(240,176,16,.18),transparent 60%),var(--dem-2)}
.cua--chu::before{background:linear-gradient(180deg,rgba(7,16,28,0) 40%,rgba(7,16,28,.7) 100%)}
.cua__chu-lon{position:absolute;z-index:-2;left:24px;right:24px;top:84px;font:300 clamp(4.2rem,9vw,6.6rem)/.95 var(--serif);
  letter-spacing:-.03em;color:transparent;-webkit-text-stroke:1px rgba(244,241,234,.45);word-spacing:.1em;transition:transform 1.1s var(--em),-webkit-text-stroke-color .5s}
.cua--chu:hover .cua__chu-lon{transform:translateY(-6px);-webkit-text-stroke-color:rgba(240,176,16,.9)}
.sao{color:var(--vang);margin-left:.04em}
.so-lieu__o strong .sao{display:inline;font:inherit;color:var(--vang);margin:0 0 0 .04em}
/* hero chữ lớn viền (trang chưa có ảnh đúng ngữ cảnh) */
.hero--chu-lon .hero__khung{min-height:min(760px,calc(100svh - var(--cao-dau) - 18px))}
.hero__chu-lon{position:absolute;z-index:-1;right:-2%;top:50%;transform:translateY(-58%);
  font:300 clamp(6rem,19vw,17rem)/.86 var(--serif);letter-spacing:-.04em;word-spacing:.08em;text-align:right;max-width:9ch;
  color:transparent;-webkit-text-stroke:1px rgba(244,241,234,.16);pointer-events:none;user-select:none}
@media (max-width:899px){.hero__chu-lon{top:28px;transform:none;right:-4%;font-size:clamp(5rem,30vw,9rem);-webkit-text-stroke-color:rgba(244,241,234,.12)}}
.hero--gon .hero__khung{min-height:auto}
.hero--gon .hero__noi-dung{padding-top:96px;padding-bottom:34px}
@media (min-width:700px){.hero--gon .hero__noi-dung{padding-top:104px;padding-bottom:40px}}
.hero--gon h1{font-size:clamp(2.2rem,5vw,4rem)}
@media (max-width:699px){.hero--gon .hero__ray,.hero--gon .btn--kinh{display:none}.hero--gon .hero__noi-dung{padding-bottom:26px}}
.bang--deu tbody td:first-child{font-weight:400;color:var(--muc-2)}
/* tiêu đề trong thân bài (bài kiến thức) */
.chu__noi h2{font-size:clamp(1.6rem,2.8vw,2.2rem);line-height:1.2;color:var(--muc);margin:1.7em 0 .6em}
.chu__noi>h2:first-child,.chu__noi>h3:first-child{margin-top:0}