:root{
  --ink:#111827; --ink-2:#4b5563; --ink-3:#8791a1;
  --line:#e8e9f0; --bg:#ffffff; --bg-2:#f7f6fc;
  --brand:#f2680f; --brand-d:#b83e00; --brand-l:#fff0e3;
  --pink:#ffe8d6; --yellow:#ffefd0; --mint:#fff3e8; --blue:#ffe0c7; --orange:#ffead9;
  --r:24px; --max:1120px;
  --shadow:0 1px 2px rgba(17,24,39,.04),0 12px 32px -12px rgba(200,90,20,.18);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
svg{width:1em;height:1em;flex:none}
.container{width:min(var(--max),100% - 40px);margin-inline:auto}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.1}

/* nav */
.nav-wrap{position:fixed;inset:14px 0 auto;z-index:50;display:flex;justify-content:center;pointer-events:none}
.nav{pointer-events:auto;display:flex;align-items:center;gap:28px;padding:8px 8px 8px 18px;background:rgba(255,255,255,0);border:1px solid transparent;border-radius:999px;width:min(1120px,100% - 24px);justify-content:space-between;transition:width .55s cubic-bezier(.2,.8,.2,1),background .3s,box-shadow .3s,border-color .3s}
.nav-wrap.scrolled .nav{width:min(880px,100% - 24px);background:rgba(255,255,255,.8);backdrop-filter:blur(16px) saturate(1.6);-webkit-backdrop-filter:blur(16px) saturate(1.6);border-color:rgba(232,233,240,.9);box-shadow:0 6px 24px -10px rgba(200,90,20,.25)}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:17px;letter-spacing:-.01em}
.brand b{font-weight:800;background:linear-gradient(100deg,#e04a00,#f2680f 55%,#ffa13d);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.02em}
.brand img{border-radius:8px}
.nav-links{display:flex;gap:24px;font-size:14px;font-weight:500;color:var(--ink-2)}
.nav-links a,.nav .btn{white-space:nowrap}
@media (max-width:960px){.nav{gap:14px}.nav-links{gap:16px;font-size:13.5px}}
.nav-links a:hover{color:var(--ink)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:600;border:0;border-radius:999px;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease}
.btn:active{transform:scale(.97)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-block{width:100%;padding:14px 20px;font-size:15px}
.btn-dark{background:var(--brand);color:#fff}
.btn-dark:hover{background:#d9570a;box-shadow:0 8px 20px -8px rgba(230,100,20,.7)}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-white{background:#fff;color:#d9480f}
.btn-white:hover{box-shadow:0 10px 24px -8px rgba(0,0,0,.35)}
.btn svg{font-size:18px}

/* hero */
.hero{position:relative;padding:150px 0 40px;text-align:center;overflow:hidden;background:radial-gradient(900px 420px at 50% -80px,#fff0e3 0,transparent 70%)}
.hero-inner{position:relative;z-index:2}
.pill-tag{display:inline-flex;align-items:center;gap:9px;padding:6px 16px 6px 7px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);font-weight:700;font-size:15px}
.pill-tag em{font-style:normal;font-weight:500;color:var(--ink-3)}
.pill-tag img{border-radius:7px}
h1{font-size:clamp(36px,6.4vw,72px);font-weight:700;margin:26px auto 0;max-width:1000px}
.nb{white-space:nowrap}
.grad{background:linear-gradient(100deg,#e04a00,#f2680f 55%,#ffa73d);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(16px,2vw,19px);color:var(--ink-2);max-width:640px;margin:24px auto 0}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.hand{font-family:"Patrick Hand","Be Vietnam Pro",cursive;font-size:25px;color:var(--brand);margin:14px 0 0;transform:rotate(-2deg);display:flex;align-items:center;justify-content:center;gap:6px}
.hand .arrow{width:46px;height:40px;margin-top:-6px}
.meta-row{list-style:none;padding:0;margin:14px 0 0;display:flex;gap:6px 22px;justify-content:center;flex-wrap:wrap;font-size:13px;color:var(--ink-3)}
.meta-row li::before{content:"•";margin-right:8px;color:#c9cbd6}
.meta-row li:first-child::before{display:none}

.hero-deco{position:absolute;top:130px;width:300px;height:340px;z-index:1}
.hero-deco.left{left:max(-40px,calc(50% - 760px))}
.hero-deco.right{right:max(-40px,calc(50% - 760px))}
.chip{position:absolute;display:grid;place-items:center;width:84px;height:84px;border-radius:26px;font-size:36px;box-shadow:var(--shadow);animation:float 6s ease-in-out infinite}
.chip svg{width:38px;height:38px}
.c-violet{background:var(--brand-l);color:var(--brand)} .c-pink{background:var(--pink);color:#e8590c}
.c-yellow{background:var(--yellow);color:#f08c00} .c-mint{background:var(--mint);color:#d9480f}
.c-blue{background:var(--blue);color:#f76707} .c-orange{background:var(--orange);color:#e8590c}
.left .c-violet{left:60px;top:0;transform:rotate(-8deg)}
.left .c-pink{left:0;top:130px;transform:rotate(6deg);animation-delay:-2s}
.left .c-yellow{left:140px;top:226px;transform:rotate(-4deg);animation-delay:-4s}
.right .c-mint{right:70px;top:6px;transform:rotate(7deg);animation-delay:-1s}
.right .c-blue{right:0;top:138px;transform:rotate(-6deg);animation-delay:-3s}
.right .c-orange{right:130px;top:230px;transform:rotate(5deg);animation-delay:-5s}
.dot{position:absolute;border-radius:50%}
.d1{width:14px;height:14px;background:#ffb27a;left:20px;top:80px}.d2{width:10px;height:10px;background:#ff8a3d;left:250px;top:170px}
.d3{width:14px;height:14px;background:#ffd0a8;right:30px;top:60px}.d4{width:10px;height:10px;background:#ffc94d;right:250px;top:180px}
.star{position:absolute;color:#ffc94d;width:26px;height:26px}.s1{left:230px;top:20px}.s2{right:240px;top:100px;color:#ff8a3d}
@keyframes float{0%,100%{translate:0 0}50%{translate:0 -10px}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:30px 0 20px;text-align:center}
.stats b{display:block;font-size:clamp(28px,4vw,42px);letter-spacing:-.03em;font-weight:700}
.stats span{font-size:14px;color:var(--ink-3)}

/* sections */
section{scroll-margin-top:90px}
.sec-head{text-align:center;max-width:720px;margin:0 auto 46px}
.eyebrow{display:inline-block;margin:0 0 14px;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--brand)}
.sec-head h2{font-size:clamp(32px,5vw,54px);font-weight:700;line-height:1.2}
.sub{margin:18px auto 0;color:var(--ink-2);font-size:17px}

.why{padding:90px 0 40px}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{padding:26px;border-radius:var(--r);min-height:250px}
.card h3{font-size:20px;margin:20px 0 10px;font-weight:700}
.card p{margin:0;color:var(--ink-2);font-size:15px}
.ic{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:#fff;box-shadow:0 4px 12px -4px rgba(0,0,0,.15)}
.ic svg{width:24px;height:24px}
.tint-violet{background:var(--brand-l)}.tint-violet .ic{color:var(--brand)}
.tint-pink{background:var(--pink)}.tint-pink .ic{color:#e8590c}
.tint-yellow{background:var(--yellow)}.tint-yellow .ic{color:#f08c00}
.tint-mint{background:var(--mint)}.tint-mint .ic{color:#d9480f}

/* templates */
.templates{padding:90px 0;background:var(--bg-2);margin-top:50px}
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:30px}
.tab{font:inherit;font-weight:600;font-size:14px;padding:10px 18px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:.15s}
.tab:hover{border-color:var(--brand);color:var(--brand)}
.tab.on{background:var(--brand);border-color:var(--brand);color:#fff}
.tpl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tpl{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;animation:pop .35s ease both}
.tpl:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.tpl-top{height:128px;display:grid;place-items:center;position:relative}
.tpl-top .ic{width:62px;height:62px;border-radius:20px}.tpl-top .ic svg{width:30px;height:30px}
.tpl-top .lines{position:absolute;inset:auto 18px 14px;display:grid;gap:5px;opacity:.55}
.tpl-top .lines i{display:block;height:5px;border-radius:3px;background:#fff}.tpl-top .lines i:nth-child(2){width:70%}.tpl-top .lines i:nth-child(3){width:45%}
.tpl-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.tpl-cat{font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.tpl-body h3{font-size:17px;font-weight:700;letter-spacing:-.01em;line-height:1.25}
.tpl-body p{margin:0;font-size:13.5px;color:var(--ink-2)}
.tpl-badge{margin-top:auto;padding-top:10px;font-size:12px;font-weight:700}
.tpl-badge span{padding:4px 10px;border-radius:999px;background:var(--brand-l);color:var(--brand)}
.tpl-badge span.free{background:var(--mint);color:#c2410c}
.tpl-note{text-align:center;color:var(--ink-3);font-size:14px;margin:28px 0 0}

/* how */
.how{padding:100px 0 60px}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.steps li{padding:30px;border-radius:var(--r);border:1px solid var(--line);background:#fff;position:relative}
.num{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700}
.steps h3{font-size:20px;margin:22px 0 10px;font-weight:700}.steps p{margin:0;color:var(--ink-2);font-size:15px}

/* pricing */
.pricing{padding:90px 0 80px;background:linear-gradient(#fff,var(--bg-2))}
.promo{display:inline-block;margin:22px 0 34px;padding:8px 16px;border-radius:999px;background:var(--yellow);color:#7a5600;font-size:13.5px;font-weight:600}
.price-grid{display:grid;grid-template-columns:1fr 1fr 1.22fr;gap:18px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;padding:30px;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.plan h3{font-size:24px;font-weight:700}
.tag{margin:8px 0 0;color:var(--ink-3);font-size:14.5px}
.price{margin:22px 0 0;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.price b{font-size:52px;letter-spacing:-.04em;font-weight:700;line-height:1}
.price span{font-size:13px;color:var(--ink-3)}
.for{margin:16px 0 20px;padding:14px 16px;border-radius:16px;background:var(--bg-2);color:var(--ink-2);font-size:14px;min-height:92px}
.plan ul{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:11px;flex:1}
.plan li{position:relative;padding-left:28px;font-size:14.5px}
.plan li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:50%}
.plan li.y::before{background:var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
.plan li.n{color:#a7acb9;text-decoration:line-through;text-decoration-color:#d4d7e0}
.plan li.n::before{background:#eceef4 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8 8l8 8M16 8l-8 8' fill='none' stroke='%23a7acb9' stroke-width='3' stroke-linecap='round'/%3E%3C/svg%3E") center/12px no-repeat}
.plan-pro{border-color:#ffd3b0}
.plan-prem{background:linear-gradient(160deg,#d9480f,#f2680f 60%,#ff9a3c);color:#fff;border:0;box-shadow:0 30px 60px -24px rgba(230,100,20,.5)}
.plan-prem .tag,.plan-prem .price span{color:#ffe4cf}
.plan-prem .for{background:rgba(255,255,255,.12);color:#fff1e6}
.plan-prem li.y::before{background-color:#fff;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='%23f2680f' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}
.ribbon{position:absolute;top:18px;right:18px;padding:5px 12px;border-radius:999px;background:#fff;color:#d9480f;font-size:12px;font-weight:700}

.help{margin-top:34px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding:26px 30px;border-radius:26px;background:#fff;border:1px solid var(--line)}
.help h3{font-size:20px;font-weight:700}.help p{margin:6px 0 0;color:var(--ink-2);font-size:14.5px}
.help-links,.dlg-links{display:flex;gap:10px;flex-wrap:wrap}
.chan{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;font-weight:600;font-size:14.5px;border:1.5px solid var(--line);background:#fff;transition:.15s}
.chan:hover{border-color:var(--ink);transform:translateY(-1px)}
.chan i{width:9px;height:9px;border-radius:50%;background:var(--brand)}
.chan.zalo i{background:#0068ff}.chan.fb i{background:#1877f2}.chan.tele i{background:#26a5e4}.chan.tt i{background:#111}

/* faq */
.faq{padding:100px 0 70px;max-width:820px}
.faq-list{display:grid;gap:10px}
details{border:1px solid var(--line);border-radius:20px;background:#fff;transition:.2s}
details[open]{background:var(--bg-2);border-color:#ffcfa6}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;font-weight:600;font-size:16.5px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";flex:none;width:30px;height:30px;border-radius:50%;background:var(--bg-2);display:grid;place-items:center;font-size:20px;font-weight:500;color:var(--ink-2);transition:.2s}
details[open] summary::after{content:"–";background:var(--brand);color:#fff}
details p{margin:0;padding:0 24px 22px;color:var(--ink-2);font-size:15.5px}

/* final */
.final{margin:20px 20px 0;border-radius:36px;background:linear-gradient(150deg,#d9480f,#f2680f 60%,#ffa13d);color:#fff;text-align:center;position:relative;overflow:hidden}
.final::before,.final::after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.07)}
.final::before{width:420px;height:420px;left:-120px;top:-180px}.final::after{width:360px;height:360px;right:-100px;bottom:-190px}
.final-inner{position:relative;padding:84px 0}
.final-logo{margin:0 auto 22px;border-radius:20px;box-shadow:0 14px 34px -10px rgba(0,0,0,.45)}
.final h2{font-size:clamp(30px,5vw,50px);font-weight:700;max-width:680px;margin:0 auto}
.final p{margin:18px 0 30px;color:#ffe9d6;font-size:17px}

/* footer */
.footer{padding:60px 0 40px;margin-top:40px;border-top:1px solid var(--line)}
.foot{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px}
.foot p{color:var(--ink-2);font-size:14.5px;max-width:340px}
.foot h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);margin-bottom:14px}
.foot a:not(.brand){display:block;margin:0 0 9px;font-size:14.5px;color:var(--ink-2)}
.foot a:not(.brand):hover{color:var(--brand)}
.foot .copy{grid-column:1/-1;margin:10px 0 0;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);max-width:none}

/* dialog */
dialog{border:0;border-radius:28px;padding:32px;width:min(460px,100% - 28px);box-shadow:0 40px 90px -20px rgba(120,50,10,.5);color:var(--ink);font-family:inherit}
dialog::backdrop{background:rgba(60,25,5,.45);backdrop-filter:blur(4px)}
dialog[open]{animation:pop .25s ease}
dialog h3{font-size:26px;font-weight:700;margin-top:16px}
dialog img{border-radius:12px}
.dlg-x{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;border:0;background:var(--bg-2);cursor:pointer;display:grid;place-items:center;font-size:18px;color:var(--ink-2)}
.dlg-price{margin:6px 0 0;color:var(--ink-2)}.dlg-price b{color:var(--brand);font-size:19px}
.dlg-sub{font-size:14px;color:var(--ink-3);margin:14px 0}
.msg{padding:14px 16px;border-radius:16px;background:var(--bg-2);border:1px dashed #ffd3b0;font-size:14.5px;margin-bottom:12px}
.dlg-links{margin-top:14px}

/* responsive */
@media (max-width:1180px){.hero-deco{display:none}}
@media (max-width:980px){
  .why-grid,.tpl-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin-inline:auto}
  .plan-prem{transform:none;order:-1}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}
  .for{min-height:0}
}
@media (max-width:680px){
  .nav-links a:not(:last-child){display:none}
  .nav-links{font-weight:600;color:var(--ink)}
  .hero{padding-top:120px}
  .win{height:300px}.win-body{grid-template-columns:1fr}.win aside{display:none}.win-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid,.tpl-grid{grid-template-columns:1fr}
  .card{min-height:0}
  .final{margin-inline:12px;border-radius:28px}
  .help{padding:22px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.chip,.dot-live,.caret{animation:none!important}.vs{animation-duration:16s}}

/* ===== reveal ===== */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.rv.in{opacity:1;transform:none}

/* ===== scroll-driven laptop ===== */
.fly{padding-top:70px}
.fly-head{text-align:center;padding:0 20px 10px}
.fly-head h2{font-size:clamp(34px,6vw,64px);font-weight:700}
.fly-head p{margin:18px auto 0;color:var(--ink-2);max-width:560px;font-size:17px}
.fly-track{height:620vh;position:relative}
.fly-sticky{position:sticky;top:0;height:100vh;height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2.2vh;padding-top:56px}
.laptop{container-type:inline-size;width:min(980px,94vw,calc((100svh - 150px)*1.42));transform-origin:50% 100%;will-change:transform}
.lid{background:#0c0c0e;border-radius:2.4cqw 2.4cqw .6cqw .6cqw;padding:1.1cqw 1.1cqw 1.3cqw;box-shadow:inset 0 0 0 .18cqw #3a3a3f}
.screen{position:relative;aspect-ratio:16/10;border-radius:1.2cqw;overflow:hidden;font-size:1.2cqw;background:#ffb066;color:#1b1410}
.wall{position:absolute;inset:0;background:linear-gradient(160deg,#ffe9c9 0,#ffcf99 35%,#ff9a45 70%,#f2680f 100%)}
.wall i{position:absolute;border-radius:50%;filter:blur(3cqw)}
.wall i:nth-child(1){width:60cqw;height:34cqw;left:-12cqw;bottom:-14cqw;background:#ff7a1a;opacity:.75}
.wall i:nth-child(2){width:46cqw;height:30cqw;right:-10cqw;top:-8cqw;background:#fff6e8;opacity:.9}
.menubar{position:absolute;inset:0 0 auto;height:3cqw;display:flex;align-items:center;gap:1.6cqw;padding:0 1.4cqw;font-size:1.1cqw;font-weight:500;color:#2b1708;z-index:2;background:rgba(255,255,255,.2)}
.mb-app{display:flex;align-items:center;gap:.6cqw}.mb-app img{width:1.6cqw;height:1.6cqw;border-radius:.4cqw}.mb-app b{font-weight:700}
.mb-r{margin-left:auto}

/* ===== ChatGPT window ===== */
.app{position:absolute;left:5cqw;right:5cqw;top:4.2cqw;bottom:2.4cqw;background:#fff;border-radius:1.4cqw;box-shadow:0 2cqw 4cqw -1.4cqw rgba(110,40,0,.55),0 0 0 .1cqw rgba(0,0,0,.08);display:flex;overflow:hidden;z-index:3;color:#1b1410}
.g-side{flex:none;width:15cqw;background:#f7f7f8;border-right:.1cqw solid #ececef;padding:1.3cqw .9cqw;display:flex;flex-direction:column;gap:.35cqw;font-size:1cqw}
.g-new{display:flex;align-items:center;gap:.6cqw;padding:.6cqw .7cqw;border-radius:.8cqw;background:#fff;border:.1cqw solid #e6e6ea;font-weight:600;font-size:1.05cqw;margin-bottom:.8cqw}
.g-new svg{width:1.3cqw;height:1.3cqw;color:#555}
.g-sh{margin:.6cqw .4cqw 0;font-size:.85cqw;font-weight:700;color:#9a9aa3}
.g-it{padding:.5cqw .7cqw;border-radius:.7cqw;color:#40404a;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.g-it:first-of-type{background:#ececef}
.g-main{position:relative;flex:1;min-width:0;display:flex;flex-direction:column;background:#fff}
.g-top{flex:none;height:3cqw;display:flex;align-items:center;gap:.8cqw;padding:0 1.6cqw;font-size:1.25cqw;border-bottom:.1cqw solid #f1f1f3}
.g-top b{font-weight:700}
.g-model{display:inline-flex;align-items:center;gap:.5cqw;color:#8e8e98;font-weight:600;font-size:1.05cqw}
.g-model i{width:.55cqw;height:.55cqw;border-right:.16cqw solid #8e8e98;border-bottom:.16cqw solid #8e8e98;transform:rotate(45deg) translateY(-.15cqw)}
.g-body{position:relative;flex:1;min-height:0;overflow:hidden}
.g-welcome{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding-bottom:6cqw;opacity:0;transition:opacity .35s}
.g-welcome.on{opacity:1}
.g-welcome h3{font-size:2.4cqw;font-weight:600;letter-spacing:-.01em;margin:0}

.g-thread{position:absolute;inset:0;padding:1.6cqw 3cqw;display:flex;flex-direction:column;gap:1.4cqw;opacity:0;transform:translateY(1cqw);transition:opacity .4s,transform .5s}
.g-thread.on{opacity:1;transform:none}
.g-user{align-self:flex-end;max-width:70%;background:#f4f4f5;border-radius:1.6cqw;padding:.9cqw 1.3cqw;font-size:1.2cqw;display:flex;flex-direction:column;gap:.6cqw;align-items:flex-start}
.g-user #gUserTxt{font-family:ui-monospace,Consolas,Menlo,monospace;font-weight:600;font-size:1.15cqw}
.g-file{display:inline-flex;align-items:center;gap:.5cqw;padding:.35cqw .8cqw;border-radius:.8cqw;background:#fff0e3;color:#d9480f;font-size:1cqw;font-weight:700}
.g-file svg{width:1.2cqw;height:1.2cqw}
.g-ai{display:flex;gap:1cqw;align-items:flex-start;min-height:0}
.g-av{flex:none;width:2.6cqw;height:2.6cqw;border-radius:50%;border:.1cqw solid #e2e2e6;display:grid;place-items:center;color:#f2680f}
.g-av svg{width:1.4cqw;height:1.4cqw}
.g-ai-body{flex:1;min-width:0;position:relative}
.g-work,.g-result{transition:opacity .35s,transform .45s}
.g-work{opacity:0;position:absolute;inset:0 auto auto 0;width:100%;pointer-events:none}
.g-work.on{opacity:1;position:relative}
.g-result{opacity:0;position:absolute;inset:0 auto auto 0;width:100%;transform:translateY(.8cqw);pointer-events:none}
.g-result.on{opacity:1;transform:none}
.g-think{margin:.4cqw 0 1cqw;font-size:1.2cqw;font-weight:600;color:#6b6b75}
.g-say{margin:.3cqw 0 1cqw;font-size:1.2cqw;line-height:1.45}
.g-say b{color:#d9480f}

.steps2{list-style:none;margin:0;padding:0;display:grid;gap:.8cqw}
.steps2 li{display:flex;align-items:center;gap:1cqw;font-size:1.25cqw;font-weight:600;color:#a89a8f;transition:color .3s}
.steps2 li i{width:2cqw;height:2cqw;border-radius:50%;border:.2cqw solid #e6d9cf;display:grid;place-items:center;transition:.3s;flex:none}
.steps2 li.run{color:#1b1410}
.steps2 li.run i{border-color:#f2680f;border-top-color:transparent;animation:spin .8s linear infinite}
.steps2 li.ok{color:#1b1410}
.steps2 li.ok i{background:#f2680f url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.500l4 4 8-9' fill='none' stroke='white' stroke-width='3.200' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/70% no-repeat;border-color:#f2680f}
@keyframes spin{to{transform:rotate(360deg)}}
.bar{margin-top:1.2cqw;height:.8cqw;border-radius:99cqw;background:#f3e8df;overflow:hidden}
.bar b{display:block;height:100%;width:0;border-radius:inherit;background:linear-gradient(90deg,#ffa13d,#f2680f)}

/* video */
.done{display:flex;gap:2cqw;align-items:center}
.vid{position:relative;flex:none;width:44cqw;aspect-ratio:16/9;border-radius:1.1cqw;overflow:hidden;background:#2a1204;box-shadow:0 1cqw 2cqw -1cqw rgba(110,40,0,.6)}
.vs{position:absolute;inset:0;opacity:0;animation:vslide 16s linear infinite;animation-delay:var(--d,0s);background:#2a1204}
.vs img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;animation:kb 16s linear infinite;animation-delay:var(--d,0s)}
.vs::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(36,14,2,.82),rgba(36,14,2,0) 52%)}
.vt{position:absolute;z-index:2;left:2.6cqw;bottom:4.6cqw;color:#fff;display:grid;gap:.5cqw}
.vt small{width:max-content;font-size:.8cqw;font-weight:800;letter-spacing:.14em;padding:.3cqw .9cqw;border-radius:99cqw;background:rgba(255,255,255,.22);backdrop-filter:blur(.4cqw)}
.vt b{font-family:"Playfair Display","Be Vietnam Pro",serif;font-size:3.6cqw;line-height:1;font-weight:700;text-shadow:0 .2cqw 1cqw rgba(0,0,0,.5)}
.vt em{font-style:italic;font-size:1.25cqw;font-weight:500;opacity:.92}
.cap{position:absolute;z-index:2;left:50%;transform:translateX(-50%);bottom:1.5cqw;max-width:92%;white-space:nowrap;padding:.35cqw 1cqw;border-radius:.6cqw;background:rgba(0,0,0,.62);color:#fff;font-size:.95cqw;font-weight:600}
@keyframes vslide{0%{opacity:0}3%,24%{opacity:1}29%,100%{opacity:0}}
@keyframes kb{0%{transform:scale(1)}29%,100%{transform:scale(1.12)}}
.play{position:absolute;z-index:3;right:1cqw;top:1cqw;width:2.8cqw;height:2.8cqw;border-radius:50%;background:rgba(255,255,255,.92);color:#d9480f;display:grid;place-items:center;box-shadow:0 .4cqw 1cqw rgba(0,0,0,.3)}.play svg{width:1.3cqw;height:1.3cqw}
.tl{position:absolute;z-index:3;left:.8cqw;right:.8cqw;bottom:.5cqw;height:.25cqw;border-radius:99cqw;background:rgba(255,255,255,.35);overflow:hidden}
.tl b{display:block;height:100%;width:0;background:#fff;animation:tl 16s linear infinite}
@keyframes tl{to{width:100%}}
.done-info{min-width:0}
.ok{margin:0;display:inline-flex;align-items:center;gap:.5cqw;font-size:1cqw;font-weight:700;color:#d9480f;background:#fff0e3;padding:.35cqw .9cqw;border-radius:99cqw}.ok svg{width:1.2cqw;height:1.2cqw}
.done-info h4{margin:.8cqw 0 .3cqw;font-size:1.6cqw;line-height:1.15}
.dmeta{margin:0 0 1cqw;font-size:1cqw;color:#8a7b70}
.dbtn{display:inline-block;padding:.7cqw 1.5cqw;border-radius:99cqw;background:#f2680f;color:#fff;font-size:1.05cqw;font-weight:700}

/* composer */
.g-comp-wrap{position:relative;flex:none;padding:0 3cqw 1.4cqw}
.composer{min-height:4.2cqw;border-radius:99cqw;border:.12cqw solid #e2e2e6;background:#fff;display:flex;align-items:center;gap:.8cqw;padding:.6cqw .7cqw .6cqw .8cqw;box-shadow:0 .4cqw 1.2cqw -.6cqw rgba(0,0,0,.2);font-size:1.2cqw}
.plus{flex:none;width:3cqw;height:3cqw;border-radius:50%;display:grid;place-items:center;color:#555;transition:.2s}
.plus svg{width:1.6cqw;height:1.6cqw}
.plus.hot{background:#ececef}
.chip-tpl{display:inline-flex;align-items:center;gap:.5cqw;flex:none;border-radius:99cqw;background:#fff0e3;color:#d9480f;font-weight:700;font-size:1cqw;opacity:0;transform:scale(.85);transition:.3s;width:0;padding:0;overflow:hidden;white-space:nowrap}
.chip-tpl.on{opacity:1;transform:none;width:auto;padding:.5cqw 1cqw}
.chip-tpl svg{width:1.2cqw;height:1.2cqw}
.typed{flex:0 1 auto;min-width:0;white-space:nowrap;overflow:hidden;font-weight:500}
.typed.term{font-family:ui-monospace,Consolas,"SFMono-Regular",Menlo,monospace;font-size:1.15cqw;color:#1b1410;font-weight:600}
.typed:empty+.caret{margin-left:0}
.typed:empty::before{content:attr(data-ph);color:#a0a0aa;font-family:inherit;font-weight:500}
.caret{flex:none;width:.14cqw;height:1.5cqw;background:#f2680f;margin-left:-.6cqw;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.composer .enter{margin-left:auto;flex:none;padding:.4cqw .9cqw;border-radius:.7cqw;background:#f6efe9;border:.12cqw solid #e6d9cf;border-bottom-width:.35cqw;font-size:.95cqw;font-weight:700;color:#7a6a5f;transition:.12s}
.composer .enter.press{background:#f2680f;color:#fff;border-color:#c2410c;border-bottom-width:.12cqw;transform:translateY(.24cqw)}
.send{flex:none;width:3cqw;height:3cqw;border-radius:50%;background:#d7d7dc;color:#fff;display:grid;place-items:center;transition:.2s}.send svg{width:1.6cqw;height:1.6cqw}
.send.ready{background:#f2680f}
.send.go{box-shadow:0 0 0 .5cqw rgba(242,104,15,.25)}

/* menu đính kèm template */
.g-menu{position:absolute;left:3.4cqw;bottom:6.4cqw;width:26cqw;background:#fff;border-radius:1.3cqw;border:.1cqw solid #e6e6ea;box-shadow:0 1.4cqw 3cqw -1cqw rgba(0,0,0,.35);padding:.8cqw;opacity:0;transform:translateY(.8cqw) scale(.97);transform-origin:0 100%;pointer-events:none;transition:opacity .25s,transform .3s;z-index:4}
.g-menu.on{opacity:1;transform:none}
.gm-h{margin:.2cqw .6cqw .5cqw;font-size:.9cqw;font-weight:700;color:#9a9aa3;text-transform:uppercase;letter-spacing:.06em}
.gm{display:flex;align-items:center;gap:.8cqw;padding:.55cqw .6cqw;border-radius:.8cqw;font-size:1.1cqw;font-weight:600;transition:.2s}
.gm i{flex:none;width:2.6cqw;height:2.6cqw;border-radius:.7cqw}
.gm small{margin-left:auto;font-size:.8cqw;font-weight:700;color:#9a8b80;text-transform:uppercase;letter-spacing:.04em}
.gm.sel{background:#fff0e3;color:#d9480f}

.cursor{position:absolute;left:0;top:0;width:2.2cqw;height:2.2cqw;z-index:6;pointer-events:none;filter:drop-shadow(0 .2cqw .3cqw rgba(0,0,0,.35));transition:opacity .25s}

.base{height:2.2cqw;width:112%;margin:0 -6%;background:linear-gradient(#eceef2,#b5b9c2);border-radius:0 0 3cqw 3cqw;position:relative;box-shadow:0 2cqw 3cqw -1.5cqw rgba(120,60,10,.45)}
.base span{position:absolute;left:50%;top:0;transform:translateX(-50%);width:16%;height:.9cqw;background:#c6c9d1;border-radius:0 0 1cqw 1cqw}

.scene-tabs{display:flex;gap:clamp(8px,2vw,28px);flex-wrap:wrap;justify-content:center;padding:0 16px;min-height:28px}
.scene-tabs span{display:inline-flex;align-items:center;gap:8px;font-size:clamp(13px,1.6vw,17px);font-weight:600;color:#c3c6d0;transition:color .3s,transform .3s}
.scene-tabs span em{font-style:normal;display:grid;place-items:center;width:1.5em;height:1.5em;border-radius:50%;background:#eceef4;color:#a7acb9;font-size:.85em;transition:.3s}
.scene-tabs span.on{color:var(--brand);transform:translateY(-2px)}
.scene-tabs span.on em,.scene-tabs span.done em{background:var(--brand);color:#fff}
.scene-tabs span.done{color:var(--ink-2)}

@media (max-width:680px){
  .fly-track{height:520vh}
  .fly-sticky{overflow:hidden}
  /* điện thoại: laptop vừa đúng bề ngang màn hình (không tràn), cửa sổ ChatGPT phóng 2x để chữ đọc được */
  .laptop{width:100%;max-width:none;flex:none}
  .lid{padding:0;border-radius:0;background:none;box-shadow:none}
  .screen{border-radius:0;aspect-ratio:5/6}
  .base,.menubar,.g-side{display:none}
  .app{left:3cqw;top:3cqw;right:auto;bottom:auto;width:47cqw;height:57cqw;border-radius:1.6cqw;transform:scale(2);transform-origin:0 0}
  .done{flex-direction:column;align-items:flex-start;gap:1.4cqw}
  .vid{width:100%}
  .pill-tag{white-space:nowrap}.pill-tag em{display:none}
  .hand{font-size:22px;white-space:nowrap}
  .scene-tabs span em{display:none}
}


/* ===== khóa học kèm 1:1 ===== */
.plan-1on1{margin-top:20px;display:grid;grid-template-columns:1.1fr 1fr;gap:34px;padding:38px;border-radius:30px;background:#fff;border:2px solid var(--brand);box-shadow:0 30px 60px -30px rgba(230,100,20,.45);position:relative;overflow:hidden}
.plan-1on1::before{content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;background:var(--brand-l);z-index:0}
.p1-main,.p1-list{position:relative;z-index:1}
.p1-tag{display:inline-block;padding:6px 14px;border-radius:999px;background:var(--brand);color:#fff;font-size:13px;font-weight:700;letter-spacing:.02em}
.p1-main h3{font-size:clamp(26px,3.4vw,36px);font-weight:700;margin:18px 0 0;line-height:1.15}
.p1-lead{margin:16px 0 0;color:var(--ink-2);font-size:16px;max-width:460px}
.p1-main .price{margin:22px 0 22px}
.p1-note{margin:14px 0 0;font-size:13px;color:var(--ink-3)}
.p1-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;align-content:center}
.p1-list li{position:relative;padding:16px 18px 16px 52px;border-radius:18px;background:var(--bg-2);border:1px solid var(--line)}
.p1-list li::before{content:"";position:absolute;left:16px;top:18px;width:22px;height:22px;border-radius:50%;background:var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
.p1-list b{display:block;font-size:15.5px}
.p1-list span{display:block;margin-top:2px;font-size:14px;color:var(--ink-2)}
@media (max-width:980px){.plan-1on1{grid-template-columns:1fr;padding:28px}}

/* ===== linh vật ===== */
.helper{position:fixed;right:18px;bottom:14px;z-index:40;display:flex;flex-direction:column;align-items:flex-end;gap:6px;pointer-events:none}
.helper img{pointer-events:auto;width:118px;height:auto;filter:drop-shadow(0 10px 14px rgba(150,60,10,.35));animation:bob 3.2s ease-in-out infinite;transform-origin:50% 100%;transition:transform .2s}
.helper:hover img{transform:rotate(-6deg) scale(1.06)}
.bubble{pointer-events:auto;max-width:190px;padding:10px 14px;border-radius:16px 16px 4px 16px;background:#fff;border:1.5px solid #ffd3b0;box-shadow:var(--shadow);font-size:13.5px;font-weight:600;line-height:1.35;opacity:0;transform:translateY(8px) scale(.96);animation:bubble 9s 2.5s both}
.helper:hover .bubble{animation:none;opacity:1;transform:none}
@keyframes bubble{0%{opacity:0;transform:translateY(8px) scale(.96)}6%,70%{opacity:1;transform:none}80%,100%{opacity:0;transform:translateY(8px) scale(.96)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@media (max-width:680px){.helper img{width:76px}.bubble{display:none}.helper{right:10px;bottom:8px}}
@media (prefers-reduced-motion:reduce){.helper img{animation:none}}

.plan-prem{padding:36px}
.plan-prem h3{font-size:28px}
.plan-prem .price b{font-size:60px}
.plan-prem li{font-size:15.5px}
.plan-prem .btn-block{padding:17px 20px;font-size:16px}

/* ===== gấu Cường: mỗi chỗ đứng một cỡ (hero lớn nhất, chỗ nhỏ thì bé lại) ===== */
.rel{position:relative}
.bear{position:absolute;z-index:2;height:auto;pointer-events:none;filter:drop-shadow(0 10px 14px rgba(150,60,10,.25));transform-origin:50% 100%}
.bob{animation:bob 3.6s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.bob,.peek-top img,.foot-peek img{animation:none}}

.tabs-wrap{position:relative}
.tabs-wrap .tabs{margin-bottom:30px}

/* Premium + 1:1: ló đầu sau mép trên của thẻ (nhỏ) */
.peek-top{position:absolute;top:-104px;left:34px;width:112px;height:104px;overflow:hidden;pointer-events:none;z-index:2}
.peek-top img{display:block;width:112px;height:auto;animation:peek 3.2s ease-in-out infinite}
@keyframes peek{0%,100%{transform:translateY(6px)}50%{transform:translateY(0)}}
.p1-peek{left:auto;right:60px}

.faq-list{position:relative}


/* Chân trang: nhỏ, ló đầu */
.footer{position:relative}
.foot-peek{position:absolute;left:max(6%,calc(50% - 540px));top:-62px;width:104px;height:62px;overflow:hidden;pointer-events:none}
.foot-peek img{display:block;width:104px;height:auto;animation:peek 3.6s ease-in-out infinite}

/* Trợ lý nổi: nhỏ nhất, đứng ở mép dưới màn hình */
.helper{position:fixed;right:16px;bottom:10px;z-index:40;display:flex;flex-direction:column;align-items:flex-end;gap:6px;pointer-events:none}
.helper img{pointer-events:auto;width:92px;height:auto;filter:drop-shadow(0 10px 14px rgba(150,60,10,.35));animation:bob 3.2s ease-in-out infinite;transform-origin:50% 100%;transition:transform .2s}
.helper:hover img{transform:rotate(-6deg) scale(1.06)}
@media (max-width:680px){.helper img{width:68px}.bubble{display:none}.helper{right:8px;bottom:6px}}


/* chừa chỗ cho gấu đứng trên mép: không đè tiêu đề */
@media (min-width:761px){
  .pricing .sec-head{margin-bottom:46px}
  .promo{margin:22px 0 86px}
}
@media (max-width:760px){
  .pricing .sec-head{margin-bottom:0}
  .promo{margin:22px 0 112px}
}

/* Ba bước: tiêu đề dạng graphic */
.how .sec-head{margin-bottom:30px}
.how-title{line-height:0}
.how-title img{display:block;width:min(720px,100%);height:auto;margin:6px auto 0}