/* B2B v6 (Landingpage, 19/10/2026): homepage direction. Geist + Newsreader italic accent, ink #1D1D1F, inset #F5F5F7,
   black pill CTA, soft rounded cards, tilted chips. ColorME red only as accent. Photos: owner's marked Manage photos, graded. */
.b6{--ink:#1D1D1F;--ink-2:#6E6E73;--ink-3:#86868B;--inset:#F5F5F7;--line:#E8E8ED;--red:#D6131B;--red-2:#B4231A;--r:28px;--r-sm:18px;
  --sh:0 1px 2px rgba(0,0,0,.04),0 12px 32px -12px rgba(0,0,0,.12);--sh-lg:0 2px 4px rgba(0,0,0,.04),0 30px 60px -24px rgba(0,0,0,.22);
  --sans:"Geist",-apple-system,BlinkMacSystemFont,"Helvetica Neue","Segoe UI",Roboto,Arial,sans-serif;--serif:"Newsreader",Georgia,serif;--ez:cubic-bezier(.2,.8,.2,1);
  font:400 17px/1.55 var(--sans);color:var(--ink);background:#fff;overflow-x:clip;-webkit-font-smoothing:antialiased}
.b6 *,.b6 *::before,.b6 *::after{box-sizing:border-box}
:where(.b6) :where(h1,h2,h3,p,ul,ol,figure){margin:0;padding:0}:where(.b6) :where(ul,ol){list-style:none}
:where(.b6) img{display:block;max-width:100%;height:auto}
.b6 em{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em}
.b6-w{max-width:1200px;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.b6-w--wide{max-width:1320px;position:relative}
.b6-k{font:600 12.5px/1.3 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.b6-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 26px;border-radius:999px;background:var(--ink);color:#fff;font:600 16px var(--sans);text-decoration:none;border:0;cursor:pointer;transition:transform .2s var(--ez),background .2s}
.b6-btn:hover{background:#3A3A3C;transform:translateY(-1px)}.b6-btn svg{width:18px;height:18px}
.b6-btn--ghost{background:var(--inset);color:var(--ink)}.b6-btn--ghost:hover{background:#ECECF0}
.b6-btn--full{width:100%}
.b6-ctas{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* Hero */
.b6-hero{position:relative;padding-block:clamp(56px,7vw,96px) clamp(40px,5vw,64px);text-align:center;
  background:radial-gradient(40% 50% at 15% 30%,rgba(214,19,27,.06),transparent 70%),radial-gradient(40% 50% at 85% 20%,rgba(255,160,90,.08),transparent 70%)}
.b6-pill{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:var(--inset);font:500 14px var(--sans);color:var(--ink-2)}
.b6-pill i{width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(214,19,27,.15)}
.b6-h1{margin-top:22px;font:600 clamp(42px,6.4vw,84px)/1.02 var(--sans);letter-spacing:-.045em;text-wrap:balance}
.b6-h1 em{color:var(--red);font-weight:400;letter-spacing:-.03em}
.b6-lede{max-width:620px;margin:22px auto 30px;font-size:clamp(17px,1.5vw,19px);color:var(--ink-2);text-wrap:balance}
.b6-bento{margin-top:clamp(44px,5vw,64px);display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));gap:14px;height:clamp(440px,46vw,620px);text-align:left}
.b6-bt{position:relative;margin:0;border-radius:var(--r);overflow:hidden;background:var(--inset)}
.b6-bt img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ez)}
.b6-bt:hover img{transform:scale(1.035)}
.b6-bt figcaption{position:absolute;left:14px;bottom:14px;padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);font:600 13px var(--sans)}
.b6-bt--a{grid-column:1/6;grid-row:1/3}
.b6-bt--b{grid-column:6/9;grid-row:1}
.b6-bt--n{grid-column:9/11;grid-row:1;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;background:var(--red);color:#fff;
  background-image:radial-gradient(80% 60% at 100% 0%,rgba(255,255,255,.22),transparent 60%),linear-gradient(160deg,#E3222A,#B30E15)}
.b6-bt--n b{font:600 clamp(44px,4.6vw,64px)/1 var(--sans);letter-spacing:-.05em}
.b6-bt--n span{margin-top:8px;font:500 14px/1.35 var(--sans);opacity:.92}
.b6-bt--c{grid-column:11/13;grid-row:1}
.b6-bt--d{grid-column:6/9;grid-row:2}
.b6-bt--e{grid-column:9/11;grid-row:2}
.b6-bt--t{grid-column:11/13;grid-row:2;display:flex;flex-direction:column;padding:20px;background:var(--inset)}
.b6-bt--t>.b6-k{font-size:13px;line-height:1.35;text-transform:none;letter-spacing:0;color:var(--ink-2)}.b6-bt--t>.b6-k b{display:block;font:600 22px var(--sans);letter-spacing:-.03em;color:var(--ink)}
.b6-bt--t ul{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:auto}
.b6-bt--t li{aspect-ratio:1;border-radius:50%;background:#fff;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.b6-bt--t li img{width:100%;height:100%;object-fit:contain}
.b6-chip{position:absolute;z-index:3;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:14px;background:#fff;box-shadow:var(--sh-lg);font:600 14px var(--sans);white-space:nowrap}
.b6-chip i{display:grid;place-items:center;width:24px;height:24px;border-radius:8px;background:var(--red);color:#fff;font-style:normal;font-size:12px}
.b6-chip--a{left:clamp(0px,2vw,30px);top:calc(clamp(44px,5vw,64px) - 18px);transform:rotate(-4deg)}
.b6-chip--b{right:clamp(0px,2vw,30px);bottom:-18px;transform:rotate(3deg)}

/* Logos */
.b6-logos{padding-block:clamp(36px,4vw,52px) 8px;text-align:center}
.b6-logos>p{font:500 15px var(--sans);color:var(--ink-3)}
.b6-mq{margin-top:22px;display:flex;overflow:hidden;-webkit-mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.b6-mq ul{display:flex;gap:18px;padding-right:18px;flex:none;animation:b6mq 50s linear infinite}
.b6-mq li{width:96px;height:96px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1px var(--line);overflow:hidden;flex:none}
.b6-mq img{width:100%;height:100%;object-fit:contain}
@keyframes b6mq{to{transform:translateX(-100%)}}

/* Sections */
.b6-sec{padding-block:clamp(72px,8vw,112px)}
.b6-sec--inset{background:var(--inset)}
.b6-ttl{text-align:center;margin-bottom:clamp(36px,4vw,52px)}
.b6-ttl h2{font:600 clamp(32px,4vw,52px)/1.08 var(--sans);letter-spacing:-.04em;text-wrap:balance}
.b6-ttl h2 em{color:var(--red)}
.b6-ttl p{max-width:620px;margin:14px auto 0;color:var(--ink-2);text-wrap:balance}
.b6-ttl--l{text-align:left}.b6-ttl--l p{margin-left:0}
.b6-c{position:relative;border-radius:var(--r);background:var(--inset);padding:28px;overflow:hidden}
.b6-sec--inset .b6-c{background:#fff}
.b6-c h3{margin-top:10px;font:600 clamp(21px,1.9vw,26px)/1.18 var(--sans);letter-spacing:-.03em;text-wrap:balance}
.b6-c h3+p{margin-top:8px;color:var(--ink-2);font-size:15.5px}

/* Why bento */
.b6-why{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.b6-why__a{grid-column:1/4;min-height:460px}
.b6-why__b{grid-column:4/7;min-height:460px;display:flex;flex-direction:column;background:linear-gradient(170deg,#F5F5F7 0%,#F5F5F7 40%,#FBE4E2 100%)}
.b6-why__c{grid-column:1/3;min-height:380px}
.b6-why__d{grid-column:3/5;min-height:380px;display:flex;flex-direction:column}
.b6-why__e{grid-column:5/7;min-height:380px}
.b6-c--ph{padding:0;color:#fff;display:flex;align-items:flex-end}
.b6-c--ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.b6-c--ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(16,10,10,.55) 58%,rgba(16,10,10,.86) 100%)}
.b6-c--ph>div{position:relative;z-index:1;padding:28px}
.b6-c--ph .b6-k{color:rgba(255,255,255,.9);text-shadow:0 1px 8px rgba(0,0,0,.35)}.b6-c--ph h3+p{color:rgba(255,255,255,.85)}
.b6-tch{margin-top:auto;display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-top:22px}
.b6-tch figure{position:relative;border-radius:22px;overflow:hidden;aspect-ratio:4/4.6;background:radial-gradient(90% 70% at 50% 100%,#EE3A40,#D6131B 55%,#A30C12)}
.b6-tch img{position:absolute;left:50%;bottom:0;transform:translateX(-50%);height:96%;width:auto;max-width:none}
.b6-tch figcaption{position:absolute;left:10px;right:10px;bottom:10px;padding:9px 12px;border-radius:14px;background:rgba(255,255,255,.94);font:500 13px/1.3 var(--sans);color:var(--ink-2)}
.b6-tch figcaption b{display:block;font:600 15px var(--sans);color:var(--ink)}
.b6-ic{margin-top:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding-top:24px}
.b6-ic li{aspect-ratio:1;border-radius:22%;overflow:hidden;box-shadow:0 8px 18px -8px rgba(0,0,0,.35);transition:transform .3s var(--ez)}
.b6-ic li:nth-child(odd){transform:rotate(-4deg)}.b6-ic li:nth-child(even){transform:rotate(4deg) translateY(4px)}
.b6-ic li:hover{transform:none scale(1.06)}
.b6-ic img{width:100%;height:100%;object-fit:cover}
.b6-plus{margin-top:16px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.b6-plus li{padding:22px 24px;border-radius:var(--r-sm);box-shadow:inset 0 0 0 1px var(--line)}
.b6-plus b{display:block;font:600 22px var(--sans);letter-spacing:-.03em}
.b6-plus b::before{content:"";display:inline-block;width:8px;height:8px;margin:0 10px 4px 0;border-radius:50%;background:var(--red)}
.b6-plus span{color:var(--ink-2);font-size:15px}

/* Courses */
.b6-courses{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.b6-cs{border-radius:var(--r);background:#fff;overflow:hidden;box-shadow:var(--sh);transition:transform .3s var(--ez),box-shadow .3s}
.b6-cs:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.b6-cs figure{aspect-ratio:16/9;overflow:hidden}.b6-cs figure img{width:100%;height:100%;object-fit:cover}
.b6-cs p{padding:18px 20px 22px;display:grid;gap:4px}
.b6-cs b{font:600 17px/1.3 var(--sans);letter-spacing:-.02em}.b6-cs span{font-size:14.5px;line-height:1.45;color:var(--ink-2)}

/* Moments */
.b6-moments{overflow:hidden}
.b6-mo-wrap{overflow-x:auto;scrollbar-width:none;padding-bottom:10px}.b6-mo-wrap::-webkit-scrollbar{display:none}
.b6-mo-row{display:grid;grid-auto-flow:column;grid-template-rows:repeat(2,clamp(180px,17vw,250px));grid-auto-columns:clamp(220px,22vw,320px);gap:14px;grid-auto-flow:column dense;padding-inline:max(16px,calc((100vw - 1200px)/2 + 40px));width:max-content}
.b6-mo{position:relative;margin:0;border-radius:var(--r-sm);overflow:hidden;background:var(--inset)}
.b6-mo img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ez)}.b6-mo:hover img{transform:scale(1.05)}
.b6-mo--t{grid-row:span 2}
.b6-mo figcaption{position:absolute;left:12px;bottom:12px;padding:6px 11px;border-radius:999px;background:rgba(255,255,255,.92);font:600 12.5px var(--sans);opacity:0;transform:translateY(6px);transition:.3s var(--ez)}
.b6-mo:hover figcaption{opacity:1;transform:none}

/* Numbers */
.b6-num{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);grid-template-rows:1fr 1fr;gap:16px;min-height:520px}
.b6-num__big{grid-row:1/3;border-radius:var(--r);background:var(--inset);padding:clamp(28px,3vw,44px);display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.b6-num__big::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(214,19,27,.16) 1.2px,transparent 1.4px);background-size:22px 22px;-webkit-mask:radial-gradient(70% 70% at 30% 35%,#000,transparent);mask:radial-gradient(70% 70% at 30% 35%,#000,transparent)}
.b6-num__big>*{position:relative}
.b6-num__big b{margin-top:14px;font:600 clamp(96px,11vw,150px)/.9 var(--sans);letter-spacing:-.07em}
.b6-num__big b i{font-style:normal;color:var(--red)}
.b6-num__big>span{margin-top:6px;font-size:19px;color:var(--ink-2)}
.b6-num__big ul{margin-top:28px;display:grid;gap:12px}
.b6-num__big li{display:flex;gap:12px;align-items:flex-start;font-weight:500}
.b6-num__big li::before{content:"";flex:none;width:22px;height:22px;margin-top:1px;border-radius:7px;background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10.5l2.6 2.6L14 7.5' fill='none' stroke='%23fff' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat}
.b6-num__ph{margin:0;border-radius:var(--r);overflow:hidden}.b6-num__ph img{width:100%;height:100%;object-fit:cover}

/* Formats */
.b6-fmt{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.b6-fc{border-radius:var(--r);background:#fff;overflow:hidden;box-shadow:var(--sh)}
.b6-fc>img{width:100%;aspect-ratio:4/3;object-fit:cover}
.b6-fc>div{padding:22px 24px 26px}.b6-fc h3{font:600 22px var(--sans);letter-spacing:-.03em}.b6-fc p{margin-top:6px;color:var(--ink-2);font-size:15.5px}

/* Steps */
.b6-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:s}
.b6-steps li{position:relative;padding:26px;border-radius:var(--r);background:var(--inset);display:flex;flex-direction:column;gap:6px}
.b6-steps li:last-child{background:var(--ink);color:#fff}.b6-steps li:last-child span{color:rgba(255,255,255,.7)}
.b6-steps i{display:grid;place-items:center;width:38px;height:38px;margin-bottom:22px;border-radius:12px;background:#fff;font:600 16px var(--sans);font-style:normal;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.b6-steps li:last-child i{background:var(--red);color:#fff}
.b6-steps b{font:600 19px var(--sans);letter-spacing:-.02em}.b6-steps span{font-size:15px;color:var(--ink-2)}
.b6-steps li:not(:last-child)::after{content:"";position:absolute;top:44px;right:-12px;width:8px;height:8px;border-top:2px solid var(--ink-3);border-right:2px solid var(--ink-3);transform:rotate(45deg);z-index:1}

/* Builder + form */
.b6-build{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;align-items:start}
.b6-pick{display:grid;gap:16px}
.b6-mods{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.b6 .clp-mod{height:40px;padding:0 15px;border-radius:999px;border:0;background:var(--inset);font:500 14.5px var(--sans);color:var(--ink);cursor:pointer;transition:.2s}
.b6 .clp-mod[aria-pressed="true"]{background:var(--ink);color:#fff}
.b6-sum{position:relative;border-radius:var(--r);overflow:hidden;padding:28px;min-height:220px;color:#fff;background:var(--ink);display:flex;flex-direction:column;justify-content:flex-end}
.b6-sum__ph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45}
.b6-sum::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(29,29,31,.1),rgba(29,29,31,.85))}
.b6-sum>p,.b6-sum>span{position:relative;z-index:1}
.b6-sum>p{font:600 26px var(--sans)}.b6-sum>p b{font-size:72px;letter-spacing:-.05em;line-height:1}
.b6-sum>span{color:rgba(255,255,255,.8);font-size:15px}
.b6-form{border-radius:var(--r);background:#fff;padding:clamp(24px,3vw,36px);box-shadow:var(--sh-lg);display:grid;gap:14px}
.b6-form__h{font:600 26px var(--sans);letter-spacing:-.03em}
.b6-two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.b6 .clp-fld{display:grid;gap:6px}
.b6 .clp-fld label{font:500 13.5px var(--sans);color:var(--ink-2)}
.b6 .clp-fld input,.b6 .clp-fld select{height:48px;padding:0 14px;border-radius:12px;border:0;background:var(--inset);font:400 16px var(--sans);color:var(--ink);outline:0;width:100%;min-width:0}
.b6 .clp-fld input:focus,.b6 .clp-fld select:focus{box-shadow:0 0 0 2px var(--ink)}
.b6 .clp-fld em{font:500 12.5px var(--sans);font-style:normal;color:var(--red-2)}.b6 .clp-fld em:empty{display:none}
.b6 .clp-fld.is-bad input{box-shadow:0 0 0 2px var(--red)}
.b6 .clp-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.b6 .clp-form__msg{padding:12px 14px;border-radius:12px;font-size:14.5px;background:var(--inset)}
.b6 .clp-form__msg.is-ok{background:#E9F7EE;color:#14632F}.b6 .clp-form__msg.is-err{background:#FDECEC;color:var(--red-2)}
.b6-form__note{text-align:center;font-size:14px;color:var(--ink-2)}

/* FAQ */
.b6-faqw{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(32px,5vw,80px);align-items:start}
.b6-faq{border-top:1px solid var(--line)}
.b6-faq details{border-bottom:1px solid var(--line)}
.b6-faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:22px 2px;font:600 18px/1.35 var(--sans);letter-spacing:-.02em}
.b6-faq summary::-webkit-details-marker{display:none}
.b6-faq summary::after{content:"+";flex:none;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--inset);font:400 20px/1 var(--sans);transition:transform .25s var(--ez)}
.b6-faq details[open] summary::after{transform:rotate(45deg);background:var(--ink);color:#fff}
.b6-faq p{padding:0 48px 22px 2px;color:var(--ink-2)}

/* End */
.b6-end{padding-block:clamp(64px,7vw,96px) clamp(48px,5vw,72px);text-align:center;background:linear-gradient(180deg,#fff,#FFF5F4)}
.b6-fan{position:relative;height:clamp(220px,24vw,300px);margin-bottom:clamp(36px,4vw,52px)}
.b6-fan__i{position:absolute;left:50%;top:50%;width:clamp(170px,19vw,250px);aspect-ratio:4/5;margin:0;border-radius:22px;overflow:hidden;border:5px solid #fff;box-shadow:var(--sh-lg);transition:transform .5s var(--ez)}
.b6-fan__i img{width:100%;height:100%;object-fit:cover}
.b6-fan__i--0{transform:translate(-50%,-50%) translateX(-190%) rotate(-14deg) scale(.86)}
.b6-fan__i--1{transform:translate(-50%,-50%) translateX(-98%) rotate(-7deg) scale(.94)}
.b6-fan__i--2{transform:translate(-50%,-50%);z-index:2}
.b6-fan__i--3{transform:translate(-50%,-50%) translateX(98%) rotate(7deg) scale(.94);z-index:1}
.b6-fan__i--4{transform:translate(-50%,-50%) translateX(190%) rotate(14deg) scale(.86)}
.b6-end h2{font:600 clamp(36px,5vw,64px)/1.05 var(--sans);letter-spacing:-.045em;margin-bottom:30px}
.b6-end h2 em{color:var(--red)}

/* Dock */
.b6-dock[hidden]{display:none}
.b6-dock{position:fixed;z-index:50;left:50%;bottom:16px;transform:translateX(-50%);display:flex;align-items:center;gap:18px;padding:8px 8px 8px 22px;border-radius:999px;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);box-shadow:var(--sh-lg);white-space:nowrap}
.b6-dock p{display:grid;line-height:1.2}.b6-dock b{font:600 15px var(--sans)}.b6-dock span{font-size:13px;color:var(--ink-2)}
.b6-dock .b6-btn{height:44px;padding:0 20px;font-size:15px}

/* Reveal */
.b6 [data-rv]{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ez),transform .8s var(--ez)}
.b6 [data-rv].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.b6 *{animation:none!important;transition:none!important}.b6 [data-rv]{opacity:1;transform:none}}

/* Phone: tam, chi de khong vo layout; thiet ke phone sau khi owner duyet desktop */
@media (max-width:900px){
  .b6-bento{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:none;height:auto}
  .b6-bt{grid-column:auto!important;grid-row:auto!important;aspect-ratio:1}
  .b6-bt--a{grid-column:1/3!important;aspect-ratio:4/3}
  .b6-chip{display:none}
  .b6-why,.b6-num,.b6-build,.b6-faqw{grid-template-columns:minmax(0,1fr)}
  .b6-why>*{grid-column:auto!important;min-height:360px}
  .b6-num{grid-template-rows:none}.b6-num__big{grid-row:auto}.b6-num__ph{aspect-ratio:4/3}
  .b6-plus,.b6-courses,.b6-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .b6-steps li::after{display:none}
  .b6-fmt{grid-template-columns:minmax(0,1fr)}
  .b6-two{grid-template-columns:minmax(0,1fr)}
  .b6-fan__i--0,.b6-fan__i--4{display:none}
  .b6-dock span{display:none}
}

.b6-faql{display:grid;gap:28px;position:sticky;top:96px}.b6-faql__ph{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r);max-height:440px}
@media (max-width:900px){.b6-faql{position:static}.b6-faql__ph{display:none}}

/* v6b tone (owner 19/10: the clean rebuilt /tools heroes are the main tone): ink italics, no red blocks,
   white chips with green tick, tilted cards held by coloured pushpins. Red stays a small brand accent only. */
.b6-h1 em,.b6-ttl h2 em,.b6-end h2 em{color:var(--ink)}
.b6-bt--n{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.b6-bt--n span{color:var(--ink-2);opacity:1}
.b6-chip{border-radius:999px;padding:9px 16px 9px 9px;font-weight:500}
.b6-chip i{width:26px;height:26px;border-radius:50%;background:#1F9D55;font-size:13px}
.b6-chip--a i{background:var(--ink)}
.b6-pin{position:absolute;z-index:4;width:22px;height:22px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ff8a7a,#E0261E 55%,#9E120D);box-shadow:0 4px 6px rgba(0,0,0,.25),inset 0 -2px 3px rgba(0,0,0,.2)}
.b6-pin--y{background:radial-gradient(circle at 35% 30%,#ffe08a,#F2A51E 55%,#B26F07)}
.b6-num__big li::before{background-color:var(--ink)}
.b6-plus b::before{background:var(--ink)}
.b6-steps li:last-child i{background:#fff;color:var(--ink)}
.b6-why__b{background:var(--inset)}
.b6-tch figure{background:radial-gradient(90% 70% at 50% 100%,#EE3A40,#D6131B 55%,#A30C12)}
.b6-fan__i{border-width:8px;border-radius:18px}
.b6-fan__i::before{content:"";position:absolute;z-index:2;left:50%;top:8px;width:18px;height:18px;margin-left:-9px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ff8a7a,#E0261E 55%,#9E120D);box-shadow:0 3px 5px rgba(0,0,0,.3)}
.b6-fan__i--1::before,.b6-fan__i--3::before{background:radial-gradient(circle at 35% 30%,#ffe08a,#F2A51E 55%,#B26F07)}
.b6-fan__i{position:absolute}
.b6-hero{background:#fff}
/* Canh minh hoa ColorME Tools: 6 cot, cac hang cung chieu cao */
.b6-scg{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(16px,2vw,28px)}
.b6-sc{margin:0;display:flex;flex-direction:column;gap:14px;min-width:0}
.b6-sc--w4{grid-column:span 4}.b6-sc--w3{grid-column:span 3}.b6-sc--w2{grid-column:span 2}
.b6-sc__art{display:flex;align-items:center;justify-content:center;height:var(--h,260px)}
.b6-sc--r1{--h:clamp(220px,24vw,330px)}.b6-sc--r2{--h:clamp(200px,21vw,290px)}.b6-sc--r3{--h:clamp(160px,15vw,220px)}
.b6-sc__art img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.b6-sc figcaption{display:flex;align-items:baseline;gap:10px;font:500 16px/1.35 var(--sans);color:var(--ink);padding-inline:6px}
.b6-sc figcaption span{flex:none;padding:3px 10px;border-radius:999px;background:#fff;font:500 12px var(--sans);color:var(--ink-2)}
/* v6c (19/10 chieu): canh Tools gon, buc tuong anh, case study */
.b6-scg{grid-template-columns:repeat(3,1fr)!important;gap:20px}
.b6-sc{gap:0;background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.b6-sc__art{height:auto!important;aspect-ratio:3/2;padding:clamp(12px,1.6vw,20px);background:#fff}
.b6-sc__art{position:relative;overflow:hidden}
.b6-sc__art img{position:absolute;inset:clamp(12px,1.6vw,20px);width:calc(100% - 2*clamp(12px,1.6vw,20px))!important;height:calc(100% - 2*clamp(12px,1.6vw,20px))!important;max-width:none!important;max-height:none!important;object-fit:contain}
.b6-sc figcaption{display:grid;gap:4px;padding:0 24px 24px;font:600 17px/1.3 var(--sans);letter-spacing:-.01em}
.b6-sc figcaption span{justify-self:start;padding:0;background:none;border-radius:0;font:600 12px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.b6-moments{overflow:visible}
.b6-wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:clamp(150px,15vw,210px);grid-auto-flow:dense;gap:12px}
.b6-wall .b6-mo{height:100%}
.b6-case__head{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(24px,4vw,64px);align-items:end;margin-bottom:clamp(28px,3vw,44px)}
.b6-case__head h2{margin-top:16px;font:600 clamp(32px,4vw,52px)/1.08 var(--sans);letter-spacing:-.04em}
.b6-case__head h2 em{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--ink)}
.b6-case__facts{display:grid;gap:0;list-style:none;padding:0;margin:0}
.b6-case__facts li{display:grid;grid-template-columns:110px 1fr;gap:16px;align-items:baseline;padding:14px 0;border-top:1px solid var(--line);font:400 15px/1.45 var(--sans);color:var(--ink-2)}
.b6-case__facts b{font:600 20px/1.2 var(--sans);letter-spacing:-.02em;color:var(--ink)}
.b6-case__grid{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,clamp(180px,18vw,260px));gap:12px}
.b6-cs-ph{margin:0;border-radius:var(--r-sm);overflow:hidden}.b6-cs-ph img{width:100%;height:100%;object-fit:cover}
.b6-cs-ph--0{grid-column:span 2;grid-row:span 2}.b6-cs-ph--1{grid-row:span 2}
@media (max-width:900px){
  .b6-scg{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:12px}
  .b6-wall{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:clamp(120px,30vw,200px);gap:8px}
  .b6-case__head{grid-template-columns:minmax(0,1fr);align-items:start}
  .b6-case__grid{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto;grid-auto-rows:clamp(140px,36vw,220px);gap:8px}
  .b6-cs-ph--0{grid-column:1/3;grid-row:span 1;aspect-ratio:4/3}.b6-cs-ph--1{grid-row:span 2}
}
.b6-wall__more{display:none;justify-content:center;margin-top:20px}
@media (max-width:560px){
  .b6-scg{display:flex!important;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;margin-inline:-16px;padding-inline:16px;gap:12px}
  .b6-scg::-webkit-scrollbar{display:none}
  .b6-sc{flex:0 0 82%;scroll-snap-align:center}
  .b6-wall:not(.is-all) .b6-mo:nth-child(n+17){display:none}
  .b6-wall .b6-mo--t{grid-row:span 1}
  .b6-wall:not(.is-all)+.b6-wall__more{display:flex}
  .b6-courses{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:10px}
  .b6-cs p{padding:12px 14px 16px}.b6-cs b{font-size:14.5px}.b6-cs span{display:none}
  .b6-plus b{font-size:17px}
  .b6-sc figcaption{padding:0 20px 20px}
  .b6-case__facts li{grid-template-columns:84px 1fr;gap:12px}
}

/* the Hoc xong: nhan khoa hoc + tieu de + mot dong loi ich */
.b6-sc figcaption{gap:6px;padding:4px 24px 26px}
.b6-sc figcaption span{color:var(--red-2)}
.b6-sc figcaption b{font:600 18px/1.3 var(--sans);letter-spacing:-.02em;color:var(--ink)}
.b6-sc figcaption p{margin:0;font:400 14.5px/1.5 var(--sans);color:var(--ink-2);text-wrap:pretty}
/* Khong de mot chu roi xuong dong (owner 19/10: "mind the word drop everywhere") */
.b6 h1,.b6 h2,.b6 h3,.b6 .b6-k,.b6 figcaption b,.b6 summary,.b6 .b6-form__h,.b6 .k1-card__h b{text-wrap:balance}
.b6 p,.b6 li,.b6 span,.b6 blockquote,.b6 figcaption,.b6 details p,.b6 label{text-wrap:pretty}
.b6 .b6-lede,.b6 .b6-ttl p{text-wrap:balance}

.b6 label small{font-weight:400;color:var(--ink-3)}
.b6 label span[aria-hidden]{font-weight:400;color:var(--ink-3)}
/* ===== Hai diem ban hang (owner 19/10): thu muc phong ban + bo chon lich/noi/hinh thuc ===== */
.b6-u{margin-top:clamp(28px,3vw,44px);padding:clamp(28px,3.4vw,52px);border-radius:calc(var(--r) + 6px);background:var(--inset)}
.b6-u__k{display:inline-flex;align-items:center;gap:10px;margin:0 0 14px;font:600 13px var(--sans);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2)}
.b6-u__k i{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--red);color:#fff;font:700 13px var(--sans);font-style:normal}
.b6-u h3{margin:0;font:600 clamp(28px,3.2vw,42px)/1.1 var(--sans);letter-spacing:-.035em}
.b6-u__p{max-width:620px;margin:14px 0 0;font:400 17px/1.55 var(--sans);color:var(--ink-2)}
/* thu muc v2: mat sau co tai (sau the), 3 the bia xoe, mat truoc nghieng nhe (truoc the) */
.b6-fos{list-style:none;margin:clamp(34px,3.4vw,52px) 0 0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:22px}
.b6-fo{position:relative;padding-top:96px;isolation:isolate;perspective:900px}
.b6-fo__back{position:absolute;z-index:0;left:0;right:0;top:58px;bottom:0;border-radius:6px 18px 20px 20px;background:rgb(var(--c));filter:brightness(.78) saturate(1.05)}
.b6-fo__back::before{content:"";position:absolute;left:0;top:-13px;width:44%;height:16px;border-radius:8px 14px 0 0;background:inherit}
.b6-fo__card{position:absolute;z-index:1;left:50%;top:10px;width:62%;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:#fff;padding:5px;
  box-shadow:0 1px 2px rgba(0,0,0,.08),0 16px 30px -16px rgba(20,20,40,.45);transform:translateX(-50%) translateX(var(--x)) rotate(var(--r)) translateY(var(--y,0));transition:transform .7s var(--ez)}
.b6-fo__card img{width:100%;height:100%;object-fit:cover;border-radius:8px;display:block}
.b6-fo__card--0{--r:-11deg;--x:-30%;--y:14px}.b6-fo__card--1{--r:10deg;--x:30%;--y:12px}.b6-fo__card--2{--r:-2deg;--x:0%;--y:0px;z-index:2}
.b6-fo:hover .b6-fo__card--0{--r:-16deg;--x:-42%;--y:-2px}.b6-fo:hover .b6-fo__card--1{--r:15deg;--x:42%;--y:-2px}.b6-fo:hover .b6-fo__card--2{--r:0deg;--y:-16px}
.b6-fo__body{position:relative;z-index:3;display:flex;flex-direction:column;justify-content:flex-end;gap:5px;min-height:150px;margin-top:0;padding:16px 18px 18px;border-radius:14px 14px 20px 20px;color:#fff;
  background:linear-gradient(180deg,rgba(255,255,255,.18),rgba(255,255,255,0) 38%),rgb(var(--c));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.45),0 -6px 14px -8px rgba(0,0,0,.35),0 22px 36px -24px rgba(var(--c),.95);
  transform-origin:50% 100%;transform:rotateX(-7deg);transition:transform .7s var(--ez)}
.b6-fo:hover .b6-fo__body{transform:rotateX(-14deg)}
.b6-fo__body::before{display:none}.b6-fo__body::after{display:none}
.b6-fo__body i{align-self:flex-start;margin-bottom:auto;padding:4px 9px;border-radius:999px;background:rgba(255,255,255,.22);font:600 11.5px var(--sans);font-style:normal;letter-spacing:.02em;backdrop-filter:blur(6px)}
.b6-fo__body b{font:600 18px/1.2 var(--sans);letter-spacing:-.02em;white-space:nowrap}.b6-fo__body small{font:400 13px/1.45 var(--sans);opacity:.86}
/* bo chon */
.b6-u--pk{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(24px,4vw,64px);align-items:center;background:var(--ink);color:#fff;
  background-image:radial-gradient(60% 90% at 0% 0%,rgba(214,19,27,.38),transparent 60%)}
.b6-u--pk .b6-u__k{color:rgba(255,255,255,.7)}.b6-u--pk .b6-u__p{color:rgba(255,255,255,.72)}.b6-u--pk h3 em{color:#fff}
.b6-pk{display:grid;gap:14px;padding:clamp(18px,2vw,26px);border-radius:var(--r);background:#fff;color:var(--ink);box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.b6-pk__row{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:center}
.b6-pk__row>p{margin:0;font:600 13px var(--sans);color:var(--ink-3)}
.b6-pk__row>div{display:flex;flex-wrap:wrap;gap:6px}
.b6-pk button{appearance:none;border:0;cursor:pointer;padding:9px 14px;border-radius:999px;background:var(--inset);font:500 14px var(--sans);color:var(--ink);transition:background .25s,color .25s,transform .25s var(--ez)}
.b6-pk button:hover{transform:translateY(-1px)}
.b6-pk button[aria-pressed=true]{background:var(--ink);color:#fff}
.b6-pk__out{margin:6px 0 0;padding:14px 16px;border-radius:16px;background:var(--inset);display:grid;gap:4px}
.b6-pk__out span{font:600 12px var(--sans);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-3)}
.b6-pk__out b{font:600 17px/1.4 var(--sans);letter-spacing:-.01em}
.b6-pk .b6-btn{justify-self:start}
@media (max-width:900px){
  .b6-fos{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;gap:12px;margin-inline:-16px;padding:0 16px 8px}.b6-fos::-webkit-scrollbar{display:none}
  .b6-fo{flex:0 0 62%;scroll-snap-align:start}
  .b6-u--pk{grid-template-columns:minmax(0,1fr)}
  .b6-pk__row{grid-template-columns:minmax(0,1fr);gap:6px}
}
@media (max-width:560px){.b6-u{padding:22px 16px}.b6-fo__body{min-height:130px;padding:14px}.b6-fo__body b{font-size:15.5px}.b6-pk .b6-btn{justify-self:stretch}}
/* 4 diem cong v2 (owner: "this is boring"): moi o co mot minh hoa nho bang CSS */
.b6-px{gap:14px;margin-top:14px}
.b6-px .b6-px__i{position:relative;overflow:hidden;display:flex;flex-direction:column;padding:0 22px 22px;border-radius:var(--r);box-shadow:none;background:var(--inset);transition:transform .4s var(--ez)}
.b6-px .b6-px__i:hover{transform:translateY(-4px)}
.b6-px .b6-px__i>b{font:600 21px/1.2 var(--sans);letter-spacing:-.025em;margin-top:2px}.b6-px .b6-px__i b::before{display:none}
.b6-px .b6-px__i>span{font:400 14.5px/1.45 var(--sans);color:var(--ink-2);margin-top:4px}
.b6-px__art{position:relative;height:150px;margin:0 -22px 14px;display:grid;place-items:center}
.b6-px__i--q .b6-px__art{background:radial-gradient(80% 90% at 50% 100%,rgba(31,157,85,.16),transparent 70%)}
.b6-px__i--t .b6-px__art{background:radial-gradient(80% 90% at 50% 100%,rgba(214,19,27,.14),transparent 70%)}
.b6-px__i--c .b6-px__art{background:radial-gradient(80% 90% at 50% 100%,rgba(242,165,30,.2),transparent 70%)}
.b6-px__i--b .b6-px__art{background:radial-gradient(80% 90% at 50% 100%,rgba(244,84,150,.16),transparent 70%)}
.b6-px .l{height:7px;border-radius:4px;background:var(--line);margin:8px 0 0}.b6-px .l.s{width:62%}
/* email */
.b6-px__mail{width:76%;padding:12px 14px;border-radius:14px;background:#fff;box-shadow:0 18px 30px -18px rgba(20,20,40,.35);transform:rotate(-3deg);transition:transform .5s var(--ez)}
.b6-px__mail p{margin:0}.b6-px__mail>p:first-child{display:flex;align-items:center;gap:7px;font:600 11.5px var(--sans)}
.b6-px__mail>p:first-child i{width:16px;height:16px;border-radius:50%;background:var(--red)}.b6-px__mail>p:first-child span{margin-left:auto;font-weight:500;color:var(--ink-3)}
.b6-px__tag{display:inline-block!important;margin-top:10px!important;padding:4px 8px;border-radius:7px;background:var(--inset);font:500 10.5px var(--sans);color:var(--ink-2)}
.b6-px__ok{position:absolute;right:16%;bottom:16px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#1F9D55;color:#fff;font:700 15px var(--sans);box-shadow:0 8px 16px -6px rgba(31,157,85,.6)}
.b6-px__i:hover .b6-px__mail{transform:rotate(0) translateY(-4px)}
/* dong ho 2h */
.b6-px__clk{position:relative;width:104px;height:104px;border-radius:50%;background:conic-gradient(var(--red) 0 60deg,#fff 60deg);box-shadow:0 18px 30px -16px rgba(214,19,27,.45);display:grid;place-items:center}
.b6-px__clk::before{content:"";position:absolute;inset:9px;border-radius:50%;background:#fff}
.b6-px__clk i{position:absolute;left:50%;top:50%;width:3px;height:34px;margin-left:-1.5px;border-radius:2px;background:var(--ink);transform-origin:50% 0;transform:rotate(180deg);transition:transform 1.2s var(--ez)}
.b6-px__clk span{position:relative;font:700 22px var(--sans);letter-spacing:-.03em;margin-top:36px}
.b6-px__i:hover .b6-px__clk i{transform:rotate(240deg)}
/* chung nhan */
.b6-px__cert{position:relative;width:70%;padding:12px 14px 16px;border-radius:10px;background:#fff;box-shadow:0 18px 30px -18px rgba(20,20,40,.35);border:1px solid #F2E3C2;transform:rotate(3deg);transition:transform .5s var(--ez)}
.b6-px__cert small{display:block;font:600 9.5px var(--sans);letter-spacing:.08em;text-transform:uppercase;color:#B26F07}
.b6-px__cert b{display:block;font:italic 400 20px/1.2 var(--serif);margin-top:2px}
.b6-px__seal{position:absolute;right:-10px;bottom:-12px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle at 35% 30%,#ff6b6b,var(--red) 60%,#9E120D);color:#fff;font:700 12px var(--sans);box-shadow:0 6px 12px -4px rgba(158,18,13,.6)}
.b6-px__i:hover .b6-px__cert{transform:rotate(0) translateY(-4px)}
/* cap do */
.b6-px__lv{display:flex;align-items:flex-end;gap:10px;height:96px}
.b6-px__lv i{width:24px;height:var(--h);border-radius:8px 8px 4px 4px;background:linear-gradient(180deg,#F45496,#D6131B);opacity:.35;transition:opacity .4s,height .6s var(--ez)}
.b6-px__lv i:last-child{opacity:1}.b6-px__i:hover .b6-px__lv i{opacity:1}
@media (max-width:560px){.b6-px__art{height:120px}.b6-px .b6-px__i{padding:0 14px 16px}.b6-px__art{margin:0 -14px 10px}.b6-px .b6-px__i>b{font-size:16.5px}.b6-px__clk{width:84px;height:84px}.b6-px__clk i{height:26px}.b6-px__clk span{font-size:18px;margin-top:28px}}

.b6-px__mail>p:first-child b{font:600 12px var(--sans);white-space:nowrap}
.b6-px__seal{color:#fff!important;font-size:12px!important}.b6-px__ok{color:#fff!important}.b6-px__clk span{color:var(--ink)!important}
@media (max-width:560px){.b6-px__mail{width:86%;padding:10px}.b6-px__mail>p:first-child span{display:none}.b6-px__cert{width:80%}}

/* thu muc v3 (owner: chi icon khoa hoc): the trang vuong, icon o giua */
.b6-fo__card{width:46%;aspect-ratio:1;padding:0;display:grid;place-items:center;border-radius:16px}
.b6-fo__card img{width:62%;height:62%;object-fit:contain;border-radius:0}
.b6-fo__card--0{--x:-48%;--y:16px}.b6-fo__card--1{--x:48%;--y:14px}
.b6-fo:hover .b6-fo__card--0{--x:-60%}.b6-fo:hover .b6-fo__card--1{--x:60%}
.b6-fo__body{min-height:128px}
/* bo chon v2: nen sang, 3 cot the trang, thanh tom tat toi */
.b6-u--pk{display:block;background:var(--inset);background-image:none;color:var(--ink)}
.b6-u--pk .b6-u__k{color:var(--ink-2)}.b6-u--pk .b6-u__p{color:var(--ink-2)}.b6-u--pk h3 em{color:var(--ink)}
.b6-pk{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:clamp(26px,3vw,40px);padding:0;background:none;box-shadow:none;border-radius:0}
.b6-pk__col{background:#fff;border-radius:var(--r);padding:18px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.b6-pk__h{display:flex;align-items:center;gap:8px;margin:2px 4px 14px;font:600 13px var(--sans);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-3)}
.b6-pk__h svg{width:16px;height:16px}
.b6-pk__col>div{display:grid;gap:8px}
.b6-pk button{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;border-radius:14px;background:var(--inset);font:500 15px var(--sans);text-align:left;transform:none!important}
.b6-pk button svg{flex:none;width:20px;height:20px;color:var(--ink-2);transition:color .25s}
.b6-pk button::after{content:"";margin-left:auto;flex:none;width:18px;height:18px;border-radius:50%;box-shadow:inset 0 0 0 1.5px var(--line);background:#fff;transition:.25s}
.b6-pk button[aria-pressed=true]{background:var(--ink);color:#fff}.b6-pk button[aria-pressed=true] svg{color:#fff}
.b6-pk button[aria-pressed=true]::after{box-shadow:inset 0 0 0 5px #fff;background:var(--red)}
.b6-pk button:hover:not([aria-pressed=true]){background:#ECECF0}
.b6-pk__bar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:16px;padding:16px 16px 16px 26px;border-radius:var(--r);background:#FFF1EE;color:var(--ink);box-shadow:inset 0 0 0 1px rgba(214,40,40,.10)}
.b6-pk__bar p{margin:0;display:grid;gap:3px;min-width:0}
.b6-pk__bar span{font:600 12px var(--sans);letter-spacing:.04em;text-transform:uppercase;color:var(--red-2)}
.b6-pk__bar b{font:600 18px/1.35 var(--sans);letter-spacing:-.01em}
.b6-pk__bar .b6-btn{flex:none;background:var(--red);color:#fff}
@media (max-width:900px){.b6-pk{grid-template-columns:minmax(0,1fr)}.b6-pk__bar{flex-direction:column;align-items:stretch;padding:18px}.b6-pk__bar .b6-btn{justify-content:center}}
/* cham do trong the email: tron, khong bi bop */
.b6-px__mail>p:first-child i{flex:none;width:12px;height:12px}

/* thu muc v4: 3 icon hien tron ven, xoe deu tren mieng thu muc */
.b6-fo{padding-top:84px}
.b6-fo__back{top:52px}
.b6-fo__card{width:36%;top:8px;border-radius:14px}
.b6-fo__card--0{--r:-12deg;--x:-78%;--y:14px}.b6-fo__card--1{--r:12deg;--x:78%;--y:14px}.b6-fo__card--2{--r:0deg;--y:0px}
.b6-fo:hover .b6-fo__card--0{--x:-92%;--y:4px}.b6-fo:hover .b6-fo__card--1{--x:92%;--y:4px}
@media (max-width:900px){
  .b6-pk__col>div{display:flex;flex-wrap:wrap;gap:8px}
  .b6-pk button{width:auto;padding:10px 12px;font-size:14px;gap:8px}.b6-pk button::after{display:none}.b6-pk button svg{width:17px;height:17px}
  .b6-pk__col{padding:14px}.b6-pk{gap:10px}
}

/* May do v2 (owner: "this is bad" + form trong dai): mot khung, trai chon noi dung, phai form ngan */
.b6-bld{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);border-radius:calc(var(--r) + 6px);background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.04),0 30px 60px -36px rgba(20,20,40,.35);overflow:hidden}
.b6-bld__pick{padding:clamp(24px,3vw,40px);display:flex;flex-direction:column;gap:18px}
.b6-bld__k{display:flex;align-items:center;gap:10px;margin:0;font:600 13px var(--sans);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2)}
.b6-bld__k i{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--ink);color:#fff;font:700 12px var(--sans);font-style:normal}
.b6-bld .b6-mods{margin:0}
.b6-bld__sum{margin:auto 0 0;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;padding:16px 20px;border-radius:16px;background:var(--inset)}
.b6-bld__sum b{font:600 34px/1 var(--sans);letter-spacing:-.04em}.b6-bld__sum>span{font:400 14.5px var(--sans);color:var(--ink-2)}.b6-bld__sum i{font-style:normal}
.b6-bld__form{border-radius:0;box-shadow:none;background:#FFF1EE;color:var(--ink);border-left:1px solid rgba(214,40,40,.10);padding:clamp(24px,3vw,40px);gap:14px;align-content:start}
.b6-bld__form .b6-bld__k{color:var(--ink-2)}.b6-bld__form .b6-bld__k i{background:var(--red)}
.b6-bld__form label{color:var(--ink-2)}
.b6-bld__form input,.b6-bld__form select{background:#fff!important;color:var(--ink)!important;border:1px solid rgba(120,40,30,.14)!important}.b6-bld__form input:focus,.b6-bld__form select:focus{border-color:var(--red)!important;outline:none;box-shadow:0 0 0 3px rgba(214,40,40,.12)}
.b6-bld__form select option{color:#1D1D1F}
.b6-bld__more summary{cursor:pointer;list-style:none;font:500 14px var(--sans);color:var(--ink);padding:4px 0}
.b6-bld__more summary::-webkit-details-marker{display:none}
.b6-bld__more summary::before{content:"+";display:inline-grid;place-items:center;width:20px;height:20px;margin-right:8px;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1px rgba(120,40,30,.18);color:var(--red);font-weight:600}
.b6-bld__more[open] summary::before{content:"–"}
.b6-bld__more summary small{color:var(--ink-3)}
.b6-bld__more[open]{display:grid;gap:12px}
.b6-bld__form .b6-btn{background:var(--red);color:#fff}
.b6-bld__form .b6-form__note{color:var(--ink-2);font-size:13.5px;margin:0;text-align:center}.b6-bld__form .b6-form__note b{color:var(--ink)}
.b6-bld__form .clp-form__msg{color:var(--ink)}
@media (max-width:900px){.b6-bld{grid-template-columns:minmax(0,1fr)}}
@media (max-width:560px){.b6-bld .b6-two{grid-template-columns:minmax(0,1fr)}}
.b6-bld .b6-mods{display:flex!important;flex-wrap:wrap;gap:8px}.b6-bld .b6-mods li{display:contents}
.b6-bld__form .b6-form__note b{white-space:nowrap}
@media (max-width:560px){.b6-bld .clp-mod{font-size:13px!important;padding:8px 11px!important}.b6-bld__pick{gap:14px}}
.b6-bld__more summary small{white-space:nowrap}
.b6-bld__more summary{text-wrap:wrap}

@media (max-width:900px){.b6-bld__form{border-left:0;border-top:1px solid rgba(214,40,40,.10)}}

/* ===== Lop 1 kem 1 v6: phan sang tao rieng (dung tren nen b6.css) ===== */
.k1-hero{padding-block:clamp(40px,6vw,88px) clamp(56px,7vw,110px)}
.k1-hero__in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:clamp(28px,4vw,64px);align-items:center}
.k1-hero__txt{text-align:left}.k1-hero .b6-h1{font-size:clamp(40px,4.7vw,68px)!important;line-height:1.04;max-width:none}.k1-hero .b6-h1 span{white-space:nowrap}.k1-hero .b6-h1{text-align:left;margin-inline:0}.k1-hero .b6-lede{text-align:left;margin-inline:0;max-width:520px}
.k1-hero .b6-ctas{justify-content:flex-start}
.k1-hero__ok{display:flex;flex-wrap:wrap;gap:8px 18px;list-style:none;padding:0;margin:26px 0 0;font:500 14.5px var(--sans);color:var(--ink-2)}
.k1-hero__ok li{display:flex;align-items:center;gap:7px}.k1-hero__ok svg,.k1-fw__ok svg{width:16px;height:16px;color:#1F9D55}
/* san khau: 2 anh ghim + the lich + the giao trinh, giong canh Tools */
.k1-stage{position:relative;aspect-ratio:1/1;max-width:600px;width:100%;justify-self:center}
.k1-ph{position:absolute;margin:0;background:#fff;padding:10px 10px 0;border-radius:20px;box-shadow:0 24px 60px -18px rgba(29,29,31,.35),0 2px 6px rgba(29,29,31,.08)}
.k1-ph img{display:block;width:100%;height:100%;object-fit:cover;border-radius:12px}
.k1-ph figcaption{font:500 13px/1 var(--sans);color:var(--ink-2);padding:11px 4px 12px}
.k1-ph .b6-pin{left:50%;top:-9px;margin-left:-11px}
.k1-ph--a{left:2%;top:4%;width:56%;height:64%;transform:rotate(-4deg)}.k1-ph--a img{height:calc(100% - 36px)}
.k1-ph--b{right:3%;bottom:3%;width:40%;height:42%;padding-bottom:10px;transform:rotate(5deg)}
.k1-card{position:absolute;background:#fff;border-radius:18px;padding:16px 16px 14px;box-shadow:0 18px 44px -16px rgba(29,29,31,.3),0 1px 3px rgba(29,29,31,.08)}
.k1-card__h{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:0 0 10px;font:600 14px var(--sans)}
.k1-card__h span{font:500 11.5px var(--sans);color:var(--ink-3)}
.k1-card ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.k1-cal{right:0;top:6%;width:47%}
.k1-cal li{display:grid;grid-template-columns:34px 46px 1fr;align-items:center;gap:6px;padding:8px 9px;border-radius:12px;background:var(--inset);font:500 12px var(--sans);color:var(--ink-2)}
.k1-cal li i{font-style:normal;font-weight:600;color:var(--ink-3)}.k1-cal li b{font:600 14px var(--sans);color:var(--ink)}
.k1-cal li span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.k1-cal li.on{background:var(--ink);color:rgba(255,255,255,.75)}.k1-cal li.on b,.k1-cal li.on i{color:#fff}
.k1-plan{left:0;bottom:6%;width:46%}
.k1-plan li{display:flex;align-items:center;gap:8px;font:500 13px var(--sans);color:var(--ink)}.k1-plan svg{width:15px;height:15px;color:#1F9D55;flex:none}
.k1-one{position:absolute;left:52%;top:52%;transform:translate(-50%,-50%);z-index:5;display:grid;place-items:center;width:74px;height:74px;border-radius:50%;background:var(--red);color:#fff;font:700 24px/1 var(--sans);letter-spacing:-.02em;box-shadow:0 12px 30px -8px rgba(214,19,27,.55);display:flex;align-items:center;justify-content:center}
.k1-one i{font-style:normal;margin:0 2px 3px;opacity:.8}
.k1-chip{position:absolute!important;right:6%;top:-2%;transform:rotate(2deg)}
.k1-ph,.k1-card{transition:transform .6s var(--ez)}.k1-stage:hover .k1-ph--a{transform:rotate(-2deg) translateY(-4px)}.k1-stage:hover .k1-ph--b{transform:rotate(3deg) translateY(-4px)}
/* so sanh */
.k1-cmp{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,5vw,80px);align-items:center}
.k1-cmp__txt h2,.k1-tw__txt h2,.k1-fw__txt h2{font:600 clamp(32px,4vw,52px)/1.08 var(--sans);letter-spacing:-.04em;text-wrap:balance;margin:0 0 16px}
.k1-cmp__txt p,.k1-tw__txt>p:last-child,.k1-fw__txt>p{font:400 17px/1.55 var(--sans);color:var(--ink-2);margin:0 0 26px;max-width:460px}
.k1-cmp__tbl{background:#fff;border-radius:var(--r);box-shadow:0 1px 2px rgba(0,0,0,.04),0 20px 50px -24px rgba(29,29,31,.25);padding:10px 24px 14px;border:1px solid var(--line)}
.k1-cmp__hd,.k1-cmp__tbl li{display:grid;grid-template-columns:1fr 96px 96px;align-items:center;gap:8px}
.k1-cmp__hd{margin:0;padding:14px 0;font:600 13px var(--sans);color:var(--ink-3);text-align:center}
.k1-cmp__hd b.k1{color:#fff;background:var(--ink);border-radius:999px;padding:6px 0}
.k1-cmp__tbl ul{list-style:none;margin:0;padding:0}
.k1-cmp__tbl li{padding:15px 0;border-top:1px solid var(--line);font:500 15.5px/1.35 var(--sans)}
.k1-cmp__tbl li i{justify-self:center;width:28px;height:28px;border-radius:50%;display:grid;place-items:center}
.k1-cmp__tbl li i svg{width:15px;height:15px}
.k1-cmp__tbl li i.y{background:#E7F6EC;color:#1F9D55}.k1-cmp__tbl li i.n{background:var(--inset);color:var(--ink-3)}
.k1-cmp__tbl li i:last-child.y{background:#1F9D55;color:#fff}
/* mot buoi 1 kem 1 */
.k1-duo{display:grid;grid-template-columns:1.25fr 1fr 1fr;grid-template-rows:repeat(2,clamp(190px,19vw,280px));gap:14px}
.k1-duo__i{position:relative;margin:0;border-radius:var(--r);overflow:hidden}.k1-duo__i img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ez)}
.k1-duo__i:hover img{transform:scale(1.04)}
.k1-duo__i--0{grid-row:span 2}.k1-duo__i--3{grid-column:2}
.k1-duo__i figcaption{position:absolute;left:14px;bottom:14px;padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.94);font:600 13px var(--sans);color:var(--ink)}
/* danh cho ai */
.k1-whos{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.k1-who{border-radius:var(--r);overflow:hidden;background:var(--inset)}
.k1-who img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.k1-who>div{padding:22px 24px 26px}.k1-who h3{font:600 21px/1.25 var(--sans);letter-spacing:-.02em;margin:6px 0 8px}
.k1-who p:last-child{margin:0;font:400 15px/1.5 var(--sans);color:var(--ink-2)}
/* khoa hoc */
.k1-cvs{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.k1-cv{position:relative;border-radius:var(--r-sm);overflow:hidden;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.k1-cv img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .8s var(--ez)}.k1-cv:hover img{transform:scale(1.04)}
.k1-cv b{display:block;padding:13px 16px 15px;font:600 15.5px var(--sans)}
/* giang vien */
.k1-tw{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(28px,5vw,72px);align-items:center}
.k1-tch{grid-template-columns:repeat(3,minmax(0,1fr))!important}
/* cam nhan: giay ghim */
.k1-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px 26px;padding-top:12px}
.k1-note{position:relative;margin:0;background:#fff;border-radius:6px 6px 18px 6px;padding:30px 26px 22px;box-shadow:0 22px 40px -22px rgba(29,29,31,.35),0 1px 3px rgba(29,29,31,.08);border:1px solid var(--line)}
.k1-note::before{content:"";position:absolute;left:50%;top:-10px;width:20px;height:20px;margin-left:-10px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ff8a7a,#E0261E 55%,#9E120D);box-shadow:0 3px 5px rgba(0,0,0,.3)}
.k1-note--y::before{background:radial-gradient(circle at 35% 30%,#ffe08a,#F2A51E 55%,#B26F07)}
.k1-note--b::before{background:radial-gradient(circle at 35% 30%,#9cc4ff,#2F6FE0 55%,#173F8C)}
.k1-note--0{transform:rotate(-1.6deg)}.k1-note--1{transform:rotate(1.2deg) translateY(10px)}.k1-note--2{transform:rotate(-.6deg)}
.k1-note--3{transform:rotate(1.4deg)}.k1-note--4{transform:rotate(-1.2deg) translateY(8px)}.k1-note--5{transform:rotate(.8deg)}
.k1-note blockquote{margin:0 0 18px;font:400 italic 19px/1.45 var(--serif);color:var(--ink);letter-spacing:-.005em}
.k1-note figcaption{font:400 13.5px/1.4 var(--sans);color:var(--ink-3)}.k1-note figcaption b{display:block;font:600 14.5px var(--sans);color:var(--ink)}
.k1-note.is-in{transform:none}
/* so lieu + tuong anh */
.k1-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:28px}
.k1-stats p{margin:0;padding:22px 24px;border-radius:var(--r);background:#fff}
.k1-stats b{display:block;font:600 clamp(34px,4vw,52px)/1 var(--sans);letter-spacing:-.04em}.k1-stats span{display:block;margin-top:8px;font:400 15px var(--sans);color:var(--ink-2)}
.k1-wall{grid-auto-rows:clamp(140px,13vw,190px)}
/* form */
.k1-fw{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:clamp(28px,5vw,72px);align-items:start}
.k1-fw__ok{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:10px;font:500 16px var(--sans)}.k1-fw__ok li{display:flex;align-items:center;gap:10px}
.k1-fw__hot{font:400 15px var(--sans)!important;color:var(--ink-2)}.k1-fw__hot a{color:var(--ink);font-weight:600;text-decoration:none}
.k1-fw__ph{margin:8px 0 0;border-radius:var(--r);overflow:hidden;aspect-ratio:16/10}.k1-fw__ph img{width:100%;height:100%;object-fit:cover}
#clp-form{scroll-margin-top:80px}
.k1 .clp-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.k1-end h2{font-size:clamp(34px,5vw,64px)}
/* dien thoai */
@media (max-width:900px){
  .k1-hero__in,.k1-cmp,.k1-tw,.k1-fw{grid-template-columns:minmax(0,1fr)}
  .k1-stage{max-width:520px}
  .k1-duo{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:none;grid-auto-rows:clamp(150px,40vw,240px)}
  .k1-duo__i--0{grid-column:1/3;grid-row:span 1}.k1-duo__i--3{grid-column:auto}
  .k1-whos,.k1-notes{grid-template-columns:minmax(0,1fr)}
  .k1-cvs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .k1-stats{grid-template-columns:minmax(0,1fr)}
  .k1-who{display:grid;grid-template-columns:120px 1fr}.k1-who img{aspect-ratio:auto;height:100%}.k1-who>div{padding:16px 18px}
  .k1-fw__ph{display:none}
}
@media (max-width:560px){
  .k1-hero .b6-h1{font-size:clamp(38px,11vw,52px)}
  .k1-cal li span{display:none}.k1-cal li{grid-template-columns:30px 1fr}
  .k1-card{padding:12px}.k1-plan li{font-size:11.5px}.k1-one{width:56px;height:56px;font-size:19px}
  .k1-chip{display:none!important}
  .k1-cmp__hd,.k1-cmp__tbl li{grid-template-columns:1fr 64px 64px;font-size:14px}.k1-cmp__tbl{padding:6px 14px 10px}
  .k1-tch{grid-template-columns:repeat(3,minmax(0,1fr))!important;gap:8px}
  .k1-note blockquote{font-size:17.5px}
  .k1-tch figcaption{font-size:0}.k1-tch figcaption b{font-size:13px}
  .k1-wall .b6-mo:nth-child(13){display:none}
  .k1-cv:last-child{grid-column:1/3}.k1-cv:last-child img{aspect-ratio:32/9}
}
.k1-cal li span,.k1-plan li{text-align:left}
@media (max-width:560px){.k1-plan{display:none}.k1-card__h span{display:none}.k1-ph--a{width:62%;height:70%}.k1-cal{width:44%}}

.k1-fw__fee{font:500 15px/1.5 var(--sans)!important;color:var(--ink)!important;background:var(--inset);border-radius:14px;padding:12px 16px;max-width:460px}
.b6 label small{font-weight:400;color:var(--ink-3)}
.b6 label span[aria-hidden]{font-weight:400;color:var(--ink-3)}
#clp-form-el{scroll-margin-top:16px}

/* so lieu v2 (owner: "this need enhancement"): bang toi, moi so co hinh minh hoa rieng */
.k1-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-bottom:28px;padding:8px;border-radius:calc(var(--r) + 8px);background:var(--ink);color:#fff;
  background-image:radial-gradient(60% 120% at 0% 0%,rgba(214,19,27,.35),transparent 60%),radial-gradient(50% 100% at 100% 100%,rgba(255,255,255,.08),transparent 60%)}
.k1-st{display:grid;align-content:start;gap:6px;padding:clamp(22px,2.6vw,34px);border-radius:var(--r)}
.k1-st+.k1-st{box-shadow:inset 1px 0 0 rgba(255,255,255,.12)}
.k1-st b{font:600 clamp(40px,4.6vw,64px)/1 var(--sans);letter-spacing:-.045em;margin-top:18px}
.k1-st span{font:400 15px/1.45 var(--sans);color:rgba(255,255,255,.7)}
.k1-av,.k1-ic,.k1-tav{display:flex;list-style:none;margin:0;padding:0;min-height:52px;align-items:center}
.k1-av li{width:52px;height:52px;border-radius:50%;overflow:hidden;border:3px solid var(--ink);margin-left:-14px}.k1-av li:first-child{margin-left:0}
.k1-av img,.k1-tav img{width:100%;height:100%;object-fit:cover;display:block}
.k1-av__n{display:grid;place-items:center;background:var(--red);font:700 22px/1 var(--sans);color:#fff}
.k1-ic{gap:8px}.k1-ic li{width:44px;height:44px;border-radius:12px;overflow:hidden;background:rgba(255,255,255,.08)}.k1-ic img{width:100%;height:100%;object-fit:contain;display:block}
.k1-ic li:nth-child(2n){transform:translateY(-6px)}
.k1-tav li{width:56px;height:56px;border-radius:50%;overflow:hidden;border:3px solid var(--ink);margin-left:-12px;background:radial-gradient(90% 70% at 50% 100%,#EE3A40,#D6131B 55%,#A30C12)}.k1-tav li:first-child{margin-left:0}
.k1-tav img{object-fit:cover;object-position:50% 12%;transform:scale(1.25);transform-origin:50% 0}
@media (max-width:900px){.k1-stats{grid-template-columns:minmax(0,1fr)}.k1-st+.k1-st{box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}}
.k1-st{border-radius:0}.k1-st+.k1-st{box-shadow:none;border-left:1px solid rgba(255,255,255,.12)}
@media (max-width:900px){.k1-st+.k1-st{border-left:0;border-top:1px solid rgba(255,255,255,.12)}}
/* Chua bai 1 kem 1: canh but do (Tools design-critique) */
.k1-crit__in{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,5vw,72px);align-items:center}
.k1-crit__txt h2{font:600 clamp(32px,4vw,52px)/1.08 var(--sans);letter-spacing:-.04em;text-wrap:balance;margin:8px 0 26px}
.k1-crit__pts{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.k1-crit__pts li{display:grid;grid-template-columns:34px 1fr;gap:14px;align-items:start}
.k1-crit__pts i{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#FDECEC;color:var(--red);font:700 15px var(--sans);font-style:normal;border:1.5px dashed var(--red)}
.k1-crit__pts b{display:block;font:600 18px/1.3 var(--sans);letter-spacing:-.02em}
.k1-crit__pts span{display:block;margin-top:3px;font:400 15px/1.5 var(--sans);color:var(--ink-2)}
.k1-crit__art{position:relative;padding:clamp(18px,2vw,28px);border-radius:calc(var(--r) + 6px);background:radial-gradient(70% 70% at 50% 60%,#FFF1EF,var(--inset) 75%)}
.k1-crit__art>img{display:block;width:100%;height:auto}
.k1-crit__pen{position:absolute;right:4%;bottom:-6%;width:11%;transform:rotate(28deg);filter:drop-shadow(0 14px 16px rgba(0,0,0,.25));transition:transform .8s var(--ez)}
.k1-crit__pen img{width:100%;height:auto;display:block}
.k1-crit__art:hover .k1-crit__pen{transform:rotate(18deg) translate(-8px,-10px)}
.k1-crit__chip{position:absolute!important;left:6%;top:-16px}
@media (max-width:900px){.k1-crit__in{grid-template-columns:minmax(0,1fr)}.k1-crit__pen{width:14%}}
/* owner 19/10 "no dark section like that": bang so lieu sang, tong hong am */
.k1-stats{background:#FFF1EE;color:var(--ink);background-image:radial-gradient(60% 120% at 0% 0%,rgba(214,19,27,.10),transparent 60%);box-shadow:inset 0 0 0 1px rgba(214,40,40,.10)}
.k1-st span{color:var(--ink-2)}
.k1-st+.k1-st{border-left:1px solid rgba(214,40,40,.14)}
.k1-av li,.k1-tav li{border-color:#FFF1EE}
.k1-ic li{background:#fff;box-shadow:0 6px 14px -8px rgba(120,40,30,.35)}
@media (max-width:900px){.k1-st+.k1-st{border-left:0;border-top:1px solid rgba(214,40,40,.14)}}


/* ===== Photoshop v6 (19/10/2026): phan rieng tren nen b6.css + k1.css. Sang am, khong mang toi; hong am #FFF1EE + nut do. ===== */
.ps{--pk:#FFF1EE;--pk-line:rgba(214,40,40,.12)}
.ps kbd{display:inline-grid;place-items:center;min-width:34px;height:32px;padding:0 9px;border-radius:9px;background:#fff;font:600 13px var(--sans);color:var(--ink);
  box-shadow:inset 0 -3px 0 rgba(120,40,30,.12),0 0 0 1px rgba(120,40,30,.14),0 4px 10px -6px rgba(120,40,30,.35)}

/* Hero */
.ps-hero{padding-block:clamp(36px,5vw,80px) clamp(40px,5vw,72px)}
.ps-hero__in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(28px,4vw,64px);align-items:center}
.ps-hero__txt{text-align:left}
.ps-hero .b6-h1{text-align:left;margin-inline:0;font-size:clamp(40px,4.9vw,70px)!important;line-height:1.03}.ps-hero .b6-h1 span{white-space:nowrap}
.ps-hero .b6-h1 em{color:var(--red)!important}
.ps-hero .b6-lede{text-align:left;margin-inline:0;max-width:520px}
.ps-hero .b6-ctas{justify-content:flex-start}
.ps-fee{margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;padding:16px 20px;border-radius:20px;background:var(--pk);box-shadow:inset 0 0 0 1px var(--pk-line);max-width:560px}
.ps-fee__p{display:grid;line-height:1.1}.ps-fee__p small{font:500 12.5px var(--sans);color:var(--ink-2)}.ps-fee__p b{font:600 26px var(--sans);letter-spacing:-.03em;color:var(--red-2)}
.ps-fee ul{display:grid;gap:3px;font:400 14.5px/1.35 var(--sans);color:var(--ink-2)}.ps-fee ul b{color:var(--ink);font-weight:600}
.ps-fee cm-if{display:contents}
/* san khau: cua so Photoshop voi thanh truot truoc/sau, anh ghim, bang Layers */
.ps-stage{position:relative;aspect-ratio:1/1.02;max-width:600px;width:100%;justify-self:center}
.ps-win{position:absolute;right:0;top:0;width:68%;background:#fff;border-radius:18px;padding:0 10px 10px 46px;box-shadow:0 30px 70px -24px rgba(29,29,31,.4),0 2px 6px rgba(29,29,31,.08);z-index:2}
.ps-win__bar{display:flex;align-items:center;gap:6px;height:36px;margin-left:-36px;font:500 11.5px var(--sans);color:var(--ink-3);white-space:nowrap;overflow:hidden}
.ps-win__bar i{width:10px;height:10px;border-radius:50%;background:#FF5F57;flex:none}.ps-win__bar i:nth-child(2){background:#FEBC2E}.ps-win__bar i:nth-child(3){background:#28C840}
.ps-win__bar span{margin-left:10px;overflow:hidden;text-overflow:ellipsis}
.ps-win__tools{position:absolute;left:9px;top:46px;display:grid;gap:6px}
.ps-win__tools li{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--inset);font:600 12px var(--sans);color:var(--ink-2)}
.ps-win__tools li:first-child{background:var(--red);color:#fff}.ps-win__tools svg{width:15px;height:15px}
.ps-ba--hero{margin:0;padding:0;box-shadow:none}.ps .ps-ba--hero figcaption{display:none}.ps-ba--hero .clp-ba{border-radius:10px}
.ps-ph--a{left:0;bottom:4%;width:50%;height:44%;transform:rotate(-4deg);z-index:3}.ps-ph--a img{height:calc(100% - 36px)}
.ps-layers{left:0;top:10%;width:36%;z-index:3;transform:rotate(-2deg)}
.ps-layers li{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:10px;font:500 12.5px var(--sans);color:var(--ink-2)}
.ps-layers li.on{background:var(--pk);color:var(--ink)}.ps-layers li em{margin-left:auto;font:600 10.5px var(--sans);font-style:normal;color:var(--red-2);letter-spacing:0}
.ps-sw{width:22px;height:22px;border-radius:6px;flex:none;background:repeating-conic-gradient(#e9e9ee 0 25%,#fff 0 50%) 0 0/8px 8px}
.ps-sw--a{background:linear-gradient(160deg,#F2C6A8,#B87A5A)}.ps-sw--b{background:#F7C8B6}
.ps-chip{position:absolute!important;right:-2%;bottom:16%;transform:rotate(3deg);z-index:4}
.ps-kc{position:absolute;right:30%;bottom:1%;display:flex;gap:6px;z-index:4;transform:rotate(-3deg)}.ps-kc kbd{height:40px;min-width:44px;font-size:15px}
.ps-trust{margin-top:clamp(36px,4vw,56px);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.ps-trust li{padding:16px 20px;border-radius:20px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);font:400 14px/1.35 var(--sans);color:var(--ink-2);text-align:left}
.ps-trust b{display:block;font:600 24px/1.15 var(--sans);letter-spacing:-.03em;color:var(--ink)}

/* Thanh truot truoc / sau */
.clp-ba{position:relative;aspect-ratio:4/5;overflow:hidden;border-radius:var(--r-sm);background:var(--inset);touch-action:pan-y;user-select:none}
.clp-ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.clp-ba__h{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.08);pointer-events:none;z-index:2}
.clp-ba__k{position:absolute;top:50%;left:50%;width:40px;height:40px;margin:-20px 0 0 -20px;display:grid;place-items:center;border-radius:50%;background:#fff;color:var(--ink);box-shadow:0 6px 18px rgba(0,0,0,.25)}
.clp-ba__k svg{width:18px;height:18px}
.clp-ba__t{position:absolute;top:12px;z-index:2;padding:5px 10px;border-radius:999px;background:rgba(255,255,255,.92);font:600 12px var(--sans);color:var(--ink);pointer-events:none}
.clp-ba__t--a{left:12px}.clp-ba__t--b{right:12px}.clp-ba__t[hidden]{display:none}
.clp-ba input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;z-index:3;-webkit-appearance:none;appearance:none}
.ps-bas{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.ps-ba{margin:0;padding:10px 10px 0;border-radius:var(--r);background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.04),0 18px 40px -26px rgba(29,29,31,.3)}
.ps-ba figcaption{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:14px 8px 16px}
.ps-ba figcaption b{font:600 17px/1.3 var(--sans);letter-spacing:-.02em}.ps-ba figcaption span{grid-column:1;font-size:14px;color:var(--ink-2)}
.ps-ba figcaption i{grid-column:2;grid-row:1/3;align-self:center;padding:5px 10px;border-radius:999px;background:var(--pk);font:600 12px var(--sans);font-style:normal;color:var(--red-2);white-space:nowrap}
.ps-more__h{margin-top:clamp(36px,4vw,48px);text-align:center;font:600 13px var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.ps-more{margin-top:14px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.ps-more li{display:inline-flex;align-items:center;gap:8px;padding:9px 10px 9px 16px;border-radius:999px;background:#fff;font:500 14.5px var(--sans);box-shadow:inset 0 0 0 1px var(--line)}
.ps-more li i{padding:3px 8px;border-radius:999px;background:var(--inset);font:600 11.5px var(--sans);font-style:normal;color:var(--ink-2)}
.ps-mid{margin-top:32px}

/* Mot buoi hoc */
.ps-mos{display:grid;grid-template-columns:1.3fr 1fr 1fr;grid-template-rows:repeat(2,clamp(180px,18vw,260px));gap:14px}
.ps-mo{position:relative;margin:0;border-radius:var(--r);overflow:hidden;background:var(--inset)}
.ps-mo img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ez)}.ps-mo:hover img{transform:scale(1.04)}
.ps-mo--0{grid-row:span 2}
.ps-mo figcaption{position:absolute;left:14px;bottom:14px;right:14px;width:fit-content;padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.94);font:600 13px var(--sans)}
.ps-how{margin-top:18px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.ps-how li{display:grid;grid-template-columns:44px 1fr;gap:2px 14px;padding:20px 22px;border-radius:var(--r-sm);background:var(--inset)}
.ps-how i{grid-row:span 2;display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:#fff;font:600 15px var(--sans);font-style:normal;color:var(--red)}
.ps-how b{font:600 17px/1.3 var(--sans);letter-spacing:-.02em}.ps-how span{font-size:14.5px;color:var(--ink-2)}

/* Giao trinh */
.ps-syl{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(28px,5vw,72px);align-items:start}
.ps-syl__txt{position:sticky;top:96px}
.ps-syl__txt h2{margin:10px 0 14px;font:600 clamp(32px,4vw,52px)/1.08 var(--sans);letter-spacing:-.04em;text-wrap:balance}
.ps-syl__txt>p:not(.b6-k){color:var(--ink-2);max-width:440px}
.ps-syl__ph{margin-top:26px;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;max-width:460px}.ps-syl__ph img{width:100%;height:100%;object-fit:cover}
.ps-ssl{display:grid;gap:10px}
.ps-ss{border-radius:var(--r-sm);background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.ps-ss summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:44px 1fr auto 30px;align-items:center;gap:14px;padding:16px 18px}
.ps-ss summary::-webkit-details-marker{display:none}
.ps-ss summary i{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--inset);font:600 15px var(--sans);font-style:normal;color:var(--ink-2)}
.ps-ss[open] summary i{background:var(--red);color:#fff}
.ps-ss summary b{font:600 18px/1.3 var(--sans);letter-spacing:-.02em}.ps-ss summary span{font:500 13px var(--sans);color:var(--ink-3);white-space:nowrap}
.ps-ss summary::after{content:"+";display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--inset);font:400 20px/1 var(--sans);transition:transform .25s var(--ez)}
.ps-ss[open] summary::after{transform:rotate(45deg)}
.ps-ss__b{padding:0 22px 22px 76px;display:grid;gap:14px}
.ps-ss__b>p:first-child{color:var(--ink-2);font-size:15.5px}
.ps-tools{display:flex;flex-wrap:wrap;gap:8px}.ps-tools li{padding:6px 12px;border-radius:999px;background:var(--inset);font:500 13.5px var(--sans)}
.ps-keys{display:flex;flex-wrap:wrap;gap:10px 22px}.ps-keys li{display:flex;align-items:center;gap:6px;font:400 13.5px var(--sans);color:var(--ink-2)}.ps-keys span{margin-left:4px}
.ps-hw{padding:12px 16px;border-radius:14px;background:var(--pk);font:400 15px/1.4 var(--sans)}.ps-hw b{display:block;font:600 12px var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--red-2);margin-bottom:2px}

/* Bai cuoi khoa: bang ghim bo an pham */
.ps-board{display:grid;grid-template-columns:.8fr .364fr 1.4fr;gap:clamp(10px,1.4vw,18px);align-items:start;padding:clamp(18px,3vw,40px);border-radius:var(--r);
  background:var(--pk);box-shadow:inset 0 0 0 1px var(--pk-line);background-image:radial-gradient(rgba(214,40,40,.10) 1.2px,transparent 1.4px);background-size:22px 22px}
.ps-board__r{display:grid;gap:clamp(10px,1.4vw,18px)}.ps-board__rr{display:grid;grid-template-columns:2fr 1fr;gap:clamp(10px,1.4vw,18px);align-items:start}
.ps-k{position:relative;margin:0;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 20px 40px -22px rgba(120,40,30,.45),0 1px 3px rgba(0,0,0,.06);transition:transform .5s var(--ez)}
.ps-k img{width:100%;height:auto}
.ps-k figcaption{position:absolute;left:10px;bottom:10px;padding:5px 11px;border-radius:999px;background:rgba(255,255,255,.94);font:600 12.5px var(--sans)}
.ps-k--poster{transform:rotate(-1.2deg)}.ps-k--standee{transform:rotate(1deg)}.ps-k--banner{transform:rotate(-.6deg)}
.ps-k--avatar{border-radius:50%;transform:rotate(3deg)}.ps-k--avatar figcaption{left:50%;transform:translateX(-50%);bottom:12%}
.ps-k:hover{transform:translateY(-4px)}
.ps-tl{margin-top:18px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;counter-reset:t}
.ps-tl li{display:grid;gap:4px;padding:18px 22px;border-radius:var(--r-sm);background:var(--inset)}
.ps-tl i{font:600 12.5px var(--sans);font-style:normal;letter-spacing:.06em;text-transform:uppercase;color:var(--red-2)}.ps-tl b{font:600 17px/1.3 var(--sans);letter-spacing:-.02em}

/* Giang vien */
.ps-sup{display:grid;gap:10px;margin:18px 0}.ps-sup li{display:flex;gap:10px;align-items:flex-start;font:500 16px/1.4 var(--sans)}.ps-sup svg{width:18px;height:18px;flex:none;margin-top:2px;color:#1F9D55}
.ps-names{font-size:15px;color:var(--ink-2)}.ps-names b{color:var(--ink);font-weight:600}
.ps-tch{grid-template-columns:repeat(2,minmax(0,1fr))!important;padding-top:0;max-width:520px;justify-self:center;width:100%}
.ps-notes .k1-note--2{transform:rotate(1deg)}

/* Di kem */
.ps-inc{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.ps-inc .b6-c{background:#fff;display:flex;flex-direction:column}
.ps-inc .b6-c img{margin-top:auto;padding-top:18px;width:100%;height:auto;object-fit:contain}
.ps-inc__a{grid-column:1/4}.ps-inc__b{grid-column:4/7}.ps-inc__b img{max-height:400px;object-fit:contain}
.ps-inc__c{grid-column:1/7;display:grid!important;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:8px 32px;align-items:center;background:var(--pk)!important;box-shadow:inset 0 0 0 1px var(--pk-line)}
.ps-inc__c .b6-k,.ps-inc__c h3{grid-column:1}.ps-inc__c h3{margin-top:4px}
.ps-cert{grid-column:2;grid-row:1/3;display:grid;gap:10px}.ps-cert li{display:flex;gap:10px;font:500 15.5px/1.4 var(--sans)}.ps-cert svg{width:18px;height:18px;flex:none;margin-top:2px;color:#1F9D55}

/* Danh cho ai */
.ps-who{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.ps-who li{padding:14px 14px 22px;border-radius:var(--r);background:var(--inset)}
.ps-who span{display:block;border-radius:18px;overflow:hidden;background:#fff;aspect-ratio:1}.ps-who span img{width:100%;height:100%;object-fit:cover}
.ps-who b{display:block;margin:16px 8px 4px;font:600 18px/1.3 var(--sans);letter-spacing:-.02em}.ps-who p{margin:0 8px;font-size:14.5px;color:var(--ink-2)}

/* Hoc phi */
.ps-offer{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);grid-template-rows:auto auto;gap:16px}
.ps-offer>article{border-radius:var(--r);padding:clamp(24px,3vw,34px);background:#fff}
.ps-offer__main{grid-row:1/3;background:var(--pk)!important;box-shadow:inset 0 0 0 1px var(--pk-line);display:flex;flex-direction:column;gap:14px}
.ps-offer__main cm-if{display:contents}
.clp-offer__p{font:600 clamp(40px,4.6vw,58px)/1 var(--sans);letter-spacing:-.045em;color:var(--red-2)}
.ps-per{margin-top:-6px;font:500 15px var(--sans);color:var(--ink-2)}
.ps-offer__main ul{display:grid;gap:10px;margin:6px 0 10px}.ps-offer__main li{display:flex;gap:10px;font:500 15.5px/1.4 var(--sans)}.ps-offer__main li svg{width:18px;height:18px;flex:none;margin-top:2px;color:#1F9D55}
.ps-offer__main .b6-btn{margin-top:auto;background:var(--red)}.ps-offer__main .b6-btn:hover{background:var(--red-2)}
.ps-offer__s{display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.ps-offer__s h3{font:600 21px/1.25 var(--sans);letter-spacing:-.02em}.ps-offer__s p:not(.b6-k){color:var(--ink-2);font-size:15px;margin-bottom:12px}
.ps-offer__s .b6-btn{margin-top:auto;height:46px}
.clp-cls--none{text-align:center;color:var(--ink-2)}

/* Popup giu cho */
.clp-lead{position:fixed;inset:0;z-index:2147483647;display:grid;place-items:center;padding:16px}
.clp-lead[hidden]{display:none}
.clp-lead__bg{position:absolute;inset:0;background:rgba(60,20,16,.38);backdrop-filter:blur(6px)}
.clp-lead__box{position:relative;width:min(440px,100%);max-height:calc(100dvh - 32px);overflow:auto;border-radius:28px;background:#fff;padding:30px 26px 24px;box-shadow:var(--sh-lg)}
.clp-lead__x{position:absolute;right:14px;top:14px;width:38px;height:38px;border-radius:50%;border:0;background:var(--inset);display:grid;place-items:center;cursor:pointer;color:var(--ink)}.clp-lead__x svg{width:18px;height:18px}
.clp-lead__f,.clp-lead__ok{display:grid;gap:14px}.clp-lead__ok{justify-items:start}
.clp-lead h2{font:600 26px/1.15 var(--sans);letter-spacing:-.03em;margin-right:40px}
.clp-lead__s,.clp-lead__ok p{color:var(--ink-2);font-size:15px}
.clp-lead .clp-fld small{font:500 12.5px var(--sans);color:var(--red-2)}.clp-lead .clp-fld small:empty{display:none}
.clp-lead .clp-fld input[aria-invalid=true]{box-shadow:0 0 0 2px var(--red)}
.clp-lead .b6-btn--full{background:var(--red)}.clp-lead .b6-btn--full:hover{background:var(--red-2)}
.clp-lead__err{color:var(--red-2);font:500 14px var(--sans)}.clp-lead__err[hidden]{display:none}
.clp-lead__fine{text-align:center;font-size:13px;color:var(--ink-3)}
.clp-hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}
.ps .b6-dock .b6-btn{background:var(--red)}

@media (max-width:900px){
  .ps-hero__in,.ps-syl{grid-template-columns:minmax(0,1fr)}
  .ps-hero .b6-h1 span{white-space:normal}
  .ps-stage{max-width:520px}
  .ps-trust{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ps-bas{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;margin-inline:calc(-1 * clamp(16px,4vw,40px));padding:4px clamp(16px,4vw,40px) 14px;scrollbar-width:none}
  .ps-bas::-webkit-scrollbar{display:none}.ps-bas .ps-ba{flex:0 0 78%;scroll-snap-align:center}
  .ps-mos{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:none;grid-auto-rows:clamp(140px,34vw,240px)}.ps-mo--0{grid-column:1/3;grid-row:auto}
  .ps-how,.ps-tl{grid-template-columns:minmax(0,1fr)}
  .ps-syl__txt{position:static}.ps-syl__ph{display:none}
  .ps-ss summary{grid-template-columns:40px 1fr 30px;gap:12px;padding:14px}.ps-ss summary span{display:none}.ps-ss summary i{width:40px;height:40px}
  .ps-ss__b{padding:0 16px 18px}
  .ps-board{grid-template-columns:.8fr .364fr}.ps-board__r{grid-column:1/3}
  .ps-k figcaption{font-size:11.5px;padding:4px 9px;left:8px;bottom:8px}.ps-k--avatar figcaption{left:50%;bottom:10%}
  .ps-inc{grid-template-columns:minmax(0,1fr)}.ps-inc__a,.ps-inc__b,.ps-inc__c{grid-column:auto}
  .ps-inc__c{grid-template-columns:minmax(0,1fr)}.ps-cert{grid-column:1;grid-row:auto}
  .ps-who{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.ps-who li{padding:10px 10px 18px}.ps-who b{font-size:16px;margin:12px 4px 4px}.ps-who p{margin:0 4px;font-size:13.5px}
  .ps-offer{grid-template-columns:minmax(0,1fr)}.ps-offer__main{grid-row:auto}
}
@media (max-width:560px){
  .ps-stage{aspect-ratio:1/1.08}
  .ps-win{width:76%;padding-left:40px}.ps-win__tools li{width:24px;height:24px}
  .ps-layers{width:44%;top:4%}.ps-layers li:nth-child(3){display:none}
  .ps-ph--a{width:52%;height:40%}
  .ps-chip{right:0;bottom:22%;font-size:12.5px;padding:8px 12px}
  .ps-kc{right:6%;bottom:0}
  .ps-fee{padding:14px 16px}
}
.ps-layers li{white-space:nowrap}.ps-win__bar span{white-space:nowrap;text-wrap:nowrap}
@media (max-width:560px){.ps-win__bar span{display:none}.ps-layers{width:46%}.ps-layers li{font-size:12px;padding:6px}.ps-layers li em{display:none}}
.clp-lead__f[hidden],.clp-lead__ok[hidden],.ps-per[hidden]{display:none}
@media (max-width:900px){.ps-more{flex-wrap:nowrap;justify-content:flex-start;overflow-x:auto;scrollbar-width:none;margin-inline:calc(-1 * clamp(16px,4vw,40px));padding:2px clamp(16px,4vw,40px) 8px}
  .ps-more::-webkit-scrollbar{display:none}.ps-more li{flex:none;font-size:14px}.ps-more__h{text-align:left}}
@media (max-width:560px){.ps-layers{display:none}.ps-win{width:80%}}

/* ===== 19/10 ban 2: them anh lop that, toi uu doc tren dien thoai ===== */
.ps-ss summary{grid-template-columns:52px 1fr 30px}
.ps-ss__ic{width:52px;height:52px;border-radius:14px;background:var(--inset);object-fit:cover}
.ps-ss summary b{display:grid;gap:1px}.ps-ss summary b small{font:600 11.5px var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--red-2)}
.ps-ss__b{padding-left:84px}
.ps-ss__ph{display:grid;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:10px}
.ps-ss__ph figure{margin:0}.ps-ss__ph img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.ps-ss__ph figcaption{margin-top:6px;font:500 12.5px var(--sans);color:var(--ink-3)}
.ps-mos{grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:repeat(3,clamp(160px,15vw,220px));grid-auto-flow:dense}
.ps-mo--0{grid-column:span 2;grid-row:span 2}.ps-mo--5,.ps-mo--6{grid-column:span 2}
.ps-swipe{display:none}
.ps-tch{grid-template-columns:repeat(3,minmax(0,1fr))!important;max-width:680px}
.ps-tch__ph{background:var(--inset)!important}.ps-tch__ph img{position:absolute;inset:0;left:0!important;transform:none!important;width:100%!important;height:100%!important;object-fit:cover}
.ps-wall{grid-auto-rows:clamp(140px,13vw,190px)}
.ps-who span img{object-fit:cover}
.ps-faq__more{display:none;margin:18px auto 0;width:100%}

@media (max-width:900px){
  .b6-sec{padding-block:56px}
  .b6-ttl{margin-bottom:28px}.b6-ttl h2{font-size:clamp(30px,8.4vw,40px)}.b6-ttl p{font-size:16px}
  .ps-hero .b6-lede{font-size:17px}
  .ps-trust{display:flex;overflow-x:auto;scrollbar-width:none;gap:10px;margin-inline:calc(-1 * clamp(16px,4vw,40px));padding-inline:clamp(16px,4vw,40px)}
  .ps-trust::-webkit-scrollbar{display:none}.ps-trust li{flex:0 0 auto;padding:12px 16px;font-size:13px}.ps-trust b{font-size:19px}
  .ps-mos{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;grid-template-rows:none;scrollbar-width:none;
    margin-inline:calc(-1 * clamp(16px,4vw,40px));padding:0 clamp(16px,4vw,40px) 4px}
  .ps-mos::-webkit-scrollbar{display:none}
  .ps-mo{flex:0 0 78%;aspect-ratio:4/5;scroll-snap-align:center}.ps-mo--0{flex-basis:78%}
  .ps-swipe{display:block;margin-top:10px;text-align:right;font:500 13px var(--sans);color:var(--ink-3)}
  .ps-how li{padding:16px 18px}
  .ps-ss summary{grid-template-columns:44px 1fr 28px;gap:12px}.ps-ss__ic{width:44px;height:44px;border-radius:12px}
  .ps-ss summary b{font-size:16.5px}.ps-ss__b{padding:0 16px 18px}.ps-ss__b>p:first-child{font-size:15px}
  .k1-notes.ps-notes{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;scrollbar-width:none;
    margin-inline:calc(-1 * clamp(16px,4vw,40px));padding:14px clamp(16px,4vw,40px) 24px}
  .ps-notes::-webkit-scrollbar{display:none}.ps-notes .k1-note{flex:0 0 82%;scroll-snap-align:center;transform:none!important}
  .ps-tch{grid-template-columns:repeat(2,minmax(0,1fr))!important}.ps-tch__ph{grid-column:1/3;aspect-ratio:16/10!important}
  .ps-inc .b6-c{padding:22px}.ps-inc .b6-c img{max-height:230px;object-fit:contain}
  .ps-faq details:nth-of-type(n+7){display:none}.ps-faq.is-all details{display:block}
  .ps-faq__more{display:flex}.ps-faq.is-all .ps-faq__more{display:none}
  .b6-faq summary{font-size:16.5px;padding:18px 2px}
  .b6-end h2{font-size:clamp(34px,9vw,44px)}
}
@media (max-width:900px){.ps-mo figcaption{font-size:12.5px;padding:6px 11px}}
@media (max-width:900px){.ps-wall .b6-mo:nth-child(n+9){display:none}}
@media (max-width:900px){.ps-trust{margin-inline:0!important;padding-inline:0!important;max-width:none}.ps-hero{overflow:hidden}.ps-trust{padding-inline:clamp(16px,4vw,40px)!important}}

/* owner 19/10: khong cuon ngang ben trong section tren dien thoai; xep doc / luoi, nut "Xem them" khi dai */
.ps-bas__more{display:none;margin:18px auto 0;width:100%}
@media (max-width:900px){
  .ps-bas{display:grid!important;grid-template-columns:minmax(0,1fr);overflow:visible;margin-inline:0;padding:0;gap:16px}
  .ps-bas .ps-ba{flex:none}
  .ps-bas:not(.is-all) .ps-ba:nth-child(n+5){display:none}
  .ps-bas__more{display:flex}.ps-bas.is-all+.ps-bas__more{display:none}
  .ps-more{flex-wrap:wrap!important;justify-content:center!important;overflow:visible;margin-inline:0!important;padding:0!important;gap:8px}
  .ps-more li{font-size:13.5px;padding:7px 8px 7px 13px}.ps-more__h{text-align:center}
  .ps-trust{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible;padding-inline:clamp(16px,4vw,40px)!important;gap:10px}
  .ps-trust li{padding:12px 14px}
  .ps-mos{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:clamp(130px,36vw,220px);overflow:visible;margin-inline:0;padding:0;gap:10px}
  .ps-mo,.ps-mo--0{flex:none;aspect-ratio:auto}.ps-mo--0{grid-column:1/3;grid-row:span 2}.ps-mo--5,.ps-mo--6{grid-column:auto}
  .ps-mo--6{grid-column:1/3}
  .ps-mo figcaption{left:8px;bottom:8px;right:8px;font-size:12px;padding:5px 10px}
  .k1-notes.ps-notes{display:grid!important;grid-template-columns:minmax(0,1fr);overflow:visible;margin-inline:0;padding:12px 0 0;gap:26px}
  .ps-notes .k1-note{flex:none}
}

/* Uu dai 15%: ve do dang voucher, rang cua hai ben, duong cat net dut (owner 19/10 "more impressive, might look like a red voucher") */
.ps-cd{position:relative;display:grid;gap:10px;padding:18px 22px 16px;border-radius:18px;color:#fff;
  background:radial-gradient(90% 80% at 100% 0%,rgba(255,255,255,.22),transparent 55%),linear-gradient(150deg,#EE2A30,#D6131B 45%,#A80E14);
  box-shadow:0 18px 36px -18px rgba(214,19,27,.65);
  -webkit-mask:radial-gradient(circle 11px at 0 var(--cut,88px),transparent 98%,#000) left/51% 100% no-repeat,radial-gradient(circle 11px at 100% var(--cut,88px),transparent 98%,#000) right/51% 100% no-repeat;
          mask:radial-gradient(circle 11px at 0 var(--cut,88px),transparent 98%,#000) left/51% 100% no-repeat,radial-gradient(circle 11px at 100% var(--cut,88px),transparent 98%,#000) right/51% 100% no-repeat}
.ps-cd__top{display:flex;align-items:center;gap:14px;padding-bottom:14px;border-bottom:2px dashed rgba(255,255,255,.45);min-height:44px}
.ps-cd__off{display:grid;line-height:1;flex:none}.ps-cd__off small{font:600 10.5px var(--sans);letter-spacing:.14em;text-transform:uppercase;opacity:.85}
.ps-cd__off b{font:700 38px/1 var(--sans);letter-spacing:-.04em}
.ps-cd__h{display:grid;gap:2px;padding-left:14px;border-left:1px solid rgba(255,255,255,.35)}.ps-cd__h b{font:600 16px/1.2 var(--sans)}.ps-cd__h span{font-size:13px;opacity:.88}
.ps-cd__k{font:600 11px var(--sans);letter-spacing:.12em;text-transform:uppercase;opacity:.85}
.ps-cd__t{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.ps-cd__t li{display:grid;justify-items:center;padding:9px 4px 7px;border-radius:12px;background:#fff;box-shadow:0 6px 14px -8px rgba(80,0,0,.5)}
.ps-cd__t b{font:700 28px/1.05 var(--sans);color:var(--red-2);font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.ps-cd__t span{font:500 11.5px var(--sans);color:var(--ink-2)}
.ps-cd__p{font-size:14.5px;opacity:.95}.ps-cd__p b{font-weight:700;font-size:17px}.ps-cd__p s{opacity:.7}
.ps-cd__p[hidden],.ps-cd[hidden]{display:none}
.ps-fee .ps-cd--hero{flex:1 1 100%}
.ps-cd [data-u="s"]{animation:ps-tick 1s steps(1) infinite}
@keyframes ps-tick{50%{opacity:.82}}
/* bieu tuong Ps noi */
.ps-float{position:absolute;z-index:5;right:-3%;top:-5%;width:clamp(64px,7vw,92px);height:auto;transform:rotate(9deg);filter:drop-shadow(0 18px 24px rgba(0,30,54,.35));animation:ps-float 5s ease-in-out infinite}
@keyframes ps-float{0%,100%{transform:rotate(9deg) translateY(0)}50%{transform:rotate(5deg) translateY(-10px)}}
@media (max-width:560px){.ps-float{right:0;top:-6%;width:60px}.ps-cd{padding:16px 16px 14px}.ps-cd__off b{font-size:32px}.ps-cd__t b{font-size:24px}}
@media (prefers-reduced-motion:reduce){.ps-float,.ps-cd [data-u="s"]{animation:none}}

/* owner 19/10 "this can be better": "Và còn nữa" thành một thẻ checklist gọn, nút Xem thêm rõ là nút */
.ps-morec{margin-top:clamp(36px,4vw,48px);padding:22px 26px 10px;border-radius:var(--r);background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.ps .ps-more__h{margin:0 0 6px;text-align:left;font:400 15px var(--sans);letter-spacing:0;text-transform:none;color:var(--ink-2)}.ps .ps-more__h b{font-weight:600;color:var(--ink)}
.ps .ps-more{margin:0;display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 28px;overflow:visible!important;padding:0!important;justify-content:stretch!important}
.ps .ps-more li{display:flex;align-items:center;gap:10px;padding:13px 0;border-radius:0;background:none;box-shadow:none;border-top:1px solid var(--line);font:500 15px/1.35 var(--sans)}
.ps .ps-more li svg{width:16px;height:16px;flex:none;color:#1F9D55}.ps .ps-more li span{flex:1;min-width:0}
.ps .ps-more li i{flex:none;padding:3px 9px;border-radius:999px;background:var(--pk);color:var(--red-2);font:600 12px var(--sans);font-style:normal}
.ps-bas__more{display:none;align-items:center;justify-content:center;gap:8px;width:100%;margin-top:16px;height:52px;border:0;border-radius:999px;background:#fff;
  box-shadow:inset 0 0 0 1.5px var(--ink);font:600 15.5px var(--sans);color:var(--ink);cursor:pointer}.ps-bas__more svg{width:18px;height:18px}
@media (max-width:900px){
  .ps-morec{padding:18px 18px 6px}
  .ps .ps-more{grid-template-columns:minmax(0,1fr)!important;gap:0}.ps .ps-more li{font-size:15px;padding:12px 0}
  .ps-bas__more{display:flex}.ps-bas.is-all+.ps-bas__more{display:none}
}

/* Thanh duoi rong (owner 19/10: "full width bar that looks very good"): cuong ve do -15% | giam hoc phi + dem nguoc | nut den Nhan voucher | dong */
.ps .ps-dk{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));transform:none;width:auto;max-width:760px;margin-inline:auto;padding:0 8px 0 0;gap:12px;
  border-radius:20px;background:#fff;overflow:hidden;align-items:stretch;box-shadow:0 18px 40px -16px rgba(60,20,16,.45),0 0 0 1px rgba(120,40,30,.08)}
.ps .ps-dk.clp-off{display:none}
.ps-dk__off{flex:none;display:grid;place-content:center;justify-items:center;line-height:1;padding:0 16px;color:#fff;
  background:radial-gradient(80% 80% at 100% 0%,rgba(255,255,255,.25),transparent 60%),linear-gradient(150deg,#EE2A30,#D6131B 45%,#A80E14);border-right:2px dashed rgba(255,255,255,.55)}
.ps-dk__off small{font:600 9.5px var(--sans);letter-spacing:.14em;text-transform:uppercase;opacity:.9}.ps-dk__off b{font:700 28px/1 var(--sans);letter-spacing:-.04em}
.ps .ps-dk__t{flex:1;min-width:0;display:grid;align-content:center;gap:2px;padding:10px 0}
.ps .ps-dk__t b{font:600 15px/1.2 var(--sans);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ps .ps-dk__t span{display:block;font:500 13px var(--sans);color:var(--ink-2);font-variant-numeric:tabular-nums}.ps-dk__t i{font-style:normal;font-weight:700;color:var(--red-2)}
.ps .ps-dk__go{align-self:center;height:46px;padding:0 18px;font-size:15px;white-space:nowrap}
.ps-dk__x{align-self:center;flex:none;width:30px;height:30px;border:0;border-radius:50%;background:none;color:var(--ink-3);display:grid;place-items:center;cursor:pointer}.ps-dk__x svg{width:16px;height:16px}
@media (max-width:900px){.ps .ps-dk__t span{display:block}}
@media (max-width:420px){.ps .ps-dk{gap:8px;padding-right:4px}.ps-dk__off{padding:0 11px}.ps-dk__off b{font-size:23px}.ps .ps-dk__t b{font-size:13.5px}.ps .ps-dk__t span{font-size:12px}
  .ps .ps-dk__go{height:42px;padding:0 13px;font-size:13.5px;gap:6px}.ps .ps-dk__go svg{width:15px;height:15px}.ps-dk__x{width:24px}}
.ps .ps-dk .ps-dk__go{background:var(--ink)}.ps .ps-dk .ps-dk__go:hover{background:#3A3A3C}
.ps-dk__t em{font-style:normal}.ps-dk__d[hidden]{display:none}.ps .ps-dk__t span{white-space:nowrap}
@media (max-width:560px){.ps-dk__t b em{display:none}}
@media (max-width:380px){.ps .ps-dk{gap:6px}.ps .ps-dk__off{padding:0 9px}.ps .ps-dk__off b{font-size:21px}.ps .ps-dk .ps-dk__go{padding:0 12px;font-size:13px}.ps .ps-dk .ps-dk__go svg{display:none}.ps .ps-dk__t b{font-size:13px}}

/* ===== Khoi doanh nghiep tin tuong (dung chung, _shared/trust.css): logo luoi tinh (khong cuon ngang), anh day doanh nghiep ===== */
.tr .tr-logos{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:14px;list-style:none;margin:0;padding:0}
.tr .tr-logos li{aspect-ratio:1;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 1px var(--line),0 6px 14px -10px rgba(120,40,30,.35);overflow:hidden}
.tr .tr-logos img{width:100%;height:100%;object-fit:contain}
.tr .tr-phs{margin-top:clamp(28px,3vw,40px);display:grid;grid-template-columns:1.4fr 1fr 1fr;grid-template-rows:repeat(2,clamp(160px,15vw,230px));gap:14px}
.tr .tr-ph{position:relative;margin:0;border-radius:var(--r);overflow:hidden;background:var(--inset)}
.tr .tr-ph img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ez)}.tr .tr-ph:hover img{transform:scale(1.04)}
.tr .tr-ph--0{grid-row:span 2}
.tr .tr-ph figcaption{position:absolute;left:12px;bottom:12px;right:12px;width:fit-content;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.94);font:600 12.5px/1.3 var(--sans);color:var(--ink)}
.tr .tr-more{margin-top:22px;text-align:center}
.tr .tr-more a{display:inline-flex;align-items:center;gap:8px;font:600 15.5px var(--sans);color:var(--red-2);text-decoration:none}.tr .tr-more svg{width:17px;height:17px}
@media (max-width:900px){
  .tr .tr-logos{grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}
  .tr .tr-phs{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:none;grid-auto-rows:clamp(120px,34vw,200px);gap:10px}
  .tr .tr-ph--0{grid-column:1/3;grid-row:span 2}
  .tr .tr-ph figcaption{left:8px;bottom:8px;right:8px;font-size:11.5px;padding:5px 10px}
}