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/* V20 nav/countdown/benefits/faq/order album */
@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}.f-nav a,.f-benefit-col article,.f-album-thumbs button{transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}.f-benefit-col article:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(43,27,20,.09)}}
.f-nav{background:var(--f-red);color:#F9F2E6}.f-nav .f-container{min-height:64px;max-width:1100px;display:flex;align-items:center;gap:22px}.f-nav-logo{display:inline-flex;align-items:center;gap:12px;min-height:44px;text-decoration:none}.f-nav-logo img:first-child{width:40px;height:40px;object-fit:contain}.f-nav-logo img+img{width:auto;height:26px;object-fit:contain;padding-left:12px;border-left:1px solid rgba(232,201,122,.35)}.f-nav ul{display:flex;align-items:center;justify-content:center;gap:2px;list-style:none;padding:0;margin:0;flex:1}.f-nav li{margin:0}.f-nav a{color:inherit}.f-nav ul a{min-height:44px;display:inline-flex;align-items:center;padding:10px 12px;border-radius:999px;text-decoration:none;font-size:14px;font-weight:600}.f-nav ul a:hover{color:var(--f-gold-bright);text-decoration:underline;text-underline-offset:4px}.f-nav ul a.emphasis{background:var(--f-gold-bright);color:var(--f-ink);padding-inline:18px}.f-nav ul a.emphasis:hover{background:#F0D68F;color:var(--f-ink);text-decoration:none}.f-nav-phone{min-height:44px;display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--f-gold-bright)!important;font-family:var(--f-mono);font-size:14px;white-space:nowrap}.f-actions .f-btn{min-height:52px}.f-actions .f-primary{padding-inline:28px}.f-hero-countdown{display:inline-flex;align-items:center;gap:16px;margin-top:18px;padding:14px 22px;background:var(--f-red);border-radius:14px;color:#fff;box-shadow:0 10px 26px rgba(140,29,42,.28),inset 0 0 0 1px rgba(232,201,122,.30)}.f-hc-label{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;color:var(--f-gold-bright);text-transform:uppercase}.f-hc-units{display:flex;align-items:center;gap:8px}.f-hc-units b{min-width:44px;text-align:center}.f-hc-units i{display:block;font-family:var(--f-mono);font-style:normal;font-size:28px;font-weight:700;line-height:1;color:#fff}.f-hc-units small{display:block;margin-top:4px;font-family:var(--f-mono);font-size:10px;letter-spacing:.08em;color:var(--f-gold-bright)}.f-hc-units em{font-style:normal;color:rgba(232,201,122,.6);font-weight:700}.f-benefits{background:#fff!important}.f-benefits h2{max-width:760px}.f-benefits-grid{display:grid;grid-template-columns:1fr 300px 1fr;gap:20px 28px;align-items:start;margin-top:28px}.f-benefit-col{display:grid;gap:16px}.f-benefit-col article{display:grid;grid-template-columns:42px 1fr;gap:12px;background:#fff;border:1px solid rgba(140,29,42,.12);border-left:3px solid var(--f-red);border-radius:12px;padding:18px 20px;box-shadow:0 6px 18px rgba(43,27,20,.05)}.f-benefit-col b{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:var(--f-bg);border:1px solid rgba(201,163,78,.45);color:var(--f-red);font-family:var(--f-mono);font-size:15px}.f-benefit-col h3{color:var(--f-red);font-size:16.5px;margin-bottom:5px}.f-benefit-col p{font-size:14.5px;line-height:1.6;margin:0}.f-benefits-grid figure{margin:0}.f-benefits-grid figure img{width:100%;height:100%;min-height:430px;object-fit:cover;border:6px solid #fff;outline:1px solid rgba(201,163,78,.35);border-radius:16px;box-shadow:0 14px 32px rgba(43,27,20,.14);background:linear-gradient(160deg,#F1E6D4,#EADFC9)}.f-benefits-disclaimer{max-width:none;width:100%;margin:24px auto 0;text-align:center;font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:var(--f-gold-ink)}.f-faq .f-container{max-width:var(--f-container)}.f-faq-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;align-items:start;background:linear-gradient(rgba(140,29,42,.12),rgba(140,29,42,.12)) center/1px 100% no-repeat;border-top:0}.f-order .f-container{text-align:center}.f-order-head{max-width:760px;margin-inline:auto}.f-order-grid{display:grid;grid-template-columns:minmax(0,45fr) minmax(0,55fr);gap:36px;align-items:start;margin-top:26px;text-align:left}.f-order-grid>form{min-width:0}.f-order-album{min-width:0;position:sticky;top:24px;align-self:start;background:#fff;border-radius:16px;padding:12px;box-shadow:0 18px 40px rgba(0,0,0,.18)}.f-order-album figure{margin:0;min-width:0}.f-order-album .f-album-main{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;background:linear-gradient(160deg,#F1E6D4,#EADFC9)}.f-album-thumbs{min-width:0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px}.f-album-thumbs button{display:block;min-height:44px;padding:0;border:2px solid transparent;border-radius:8px;background:var(--f-bg-2);cursor:pointer;overflow:hidden;opacity:.85}.f-album-thumbs button.active{border-color:var(--f-gold-bright);opacity:1}.f-album-thumbs img{width:100%;aspect-ratio:1;object-fit:cover}.f-order-album figcaption{margin-top:10px;text-align:center;font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;color:var(--f-gold-ink)}.f-order-grid form{margin:0}.f-swipe{color:var(--f-gold-ink)}
@media(max-width:860px){.f-nav .f-container{min-height:56px}.f-nav ul{display:none}.f-nav{position:static}.f-nav-logo img:first-child{width:40px;height:40px}.f-nav-phone{margin-left:auto}.f-hero-countdown{display:flex;justify-content:space-between;width:100%}.f-benefits{padding:48px 0}.f-benefits-grid{grid-template-columns:1fr}.f-benefits-grid figure{order:-1}.f-benefits-grid figure img{height:240px;min-height:0}.f-faq-list{display:block;background:none}.f-order-grid{grid-template-columns:minmax(0,1fr)}.f-order-album{position:static;order:-1}.f-order-album .f-album-main{aspect-ratio:1}.f-album-thumbs{min-width:0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;overflow:visible;padding-bottom:0}.f-order .f-container{width:min(100% - 32px,var(--f-container))}}
@media(max-width:430px){.f-nav-logo img:first-child{width:34px;height:34px}.f-nav-logo img+img{display:none}.f-nav-phone{font-size:12px}.f-hero-countdown{padding:14px 16px}.f-hc-units i{font-size:24px}.f-hc-units b{min-width:40px}.f-benefit-col article{padding:16px}.f-actions{display:grid}.f-actions .f-btn{width:100%}}


/* V21 hero stage + videos + order stretch */
.f-hero{overflow:hidden;padding:80px 0 64px;background:radial-gradient(700px 420px at 88% 12%,rgba(140,29,42,.08),transparent),var(--f-bg)}
.f-hero-grid{grid-template-columns:52fr 48fr;gap:42px;align-items:center}
.f-hero h1{font-family:var(--f-display);font-weight:400;font-size:44px;line-height:1.16;color:var(--f-ink);margin:12px 0 14px}
.f-hero .f-sub{font-size:17px;line-height:1.7;color:var(--f-ink)}
.f-hero .f-price{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin:18px 0}
.f-hero .f-price strong{font-family:var(--f-display);font-weight:400;font-size:34px;color:var(--f-red-deep)}
.f-hero .f-price span{font-family:var(--f-body);font-size:15px;color:var(--f-ink);letter-spacing:0;text-transform:none}
.f-hero .f-price b{border:1px solid var(--f-gold);background:#fff;border-radius:999px;padding:7px 12px;color:var(--f-gold-ink);font-family:var(--f-mono);font-size:12px;letter-spacing:.04em}
.f-hero-countdown{margin-top:16px}
.f-stage{position:relative;margin:0;min-height:480px;display:grid;place-items:center}
.f-stage-main{width:min(88%,430px);background:#fff;border-radius:18px;padding:10px;box-shadow:0 24px 60px rgba(43,27,20,.16);position:relative;z-index:2;object-fit:contain}
.f-podium{position:absolute;left:50%;bottom:6%;transform:translateX(-50%);width:400px;height:64px;border-radius:50%;background:radial-gradient(ellipse,rgba(201,163,78,.38),transparent 70%);border-top:1px solid rgba(201,163,78,.5)}
.f-sachet{position:absolute;left:2%;bottom:12%;width:140px;border-radius:12px;border:4px solid #fff;box-shadow:0 18px 42px rgba(43,27,20,.20);transform:rotate(-7deg);z-index:3}
.f-gift{position:absolute;right:0;top:6%;width:108px;height:108px;border-radius:50%;background:var(--f-red);border:3px double var(--f-gold-bright);color:#fff;display:grid;place-items:center;align-content:center;text-align:center;padding:10px;z-index:4}
.f-gift b{font-family:var(--f-mono);font-size:10px;letter-spacing:.08em;color:var(--f-gold-bright);display:block}.f-gift span{font-weight:800;font-size:11px;line-height:1.25;color:#fff}
.f-order-grid{align-items:start}.f-order-album{position:static;top:auto;align-self:stretch;min-width:0}.f-order-album figure{margin:0}.f-order-album .f-album-main{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px}
.f-videos{background:var(--f-bg-2)}.f-video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:26px}.f-video-card{background:#fff;border-radius:16px;padding:10px;box-shadow:0 14px 34px rgba(43,27,20,.10)}.f-video-frame{position:relative;aspect-ratio:9/16;border-radius:10px;overflow:hidden;background:var(--f-bg-2)}.f-video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.f-video-caption{font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--f-gold-ink);margin:10px 4px 2px}.f-video-link{display:inline-flex;align-items:center;min-height:44px;padding:0 4px;font-size:13px;font-weight:700;color:var(--f-red);text-decoration:underline;text-underline-offset:3px}.f-video-link:hover{color:var(--f-red-deep)}.f-videos-swipe{display:none}.f-video-noscript a{display:inline-flex;min-height:44px;align-items:center;margin-right:14px;color:var(--f-red);font-weight:700}

@media(max-width:860px){.f-hero-grid{grid-template-columns:1fr;gap:30px}.f-hero h1{font-size:32px}.f-hero .f-price strong{font-size:28px}.f-stage{min-height:360px;order:-1}.f-stage-main{width:min(80%,320px)}.f-sachet{width:104px;left:0;bottom:8%}.f-gift{width:88px;height:88px;right:2%;top:2%}.f-gift b{font-size:9px}.f-gift span{font-size:10px}.f-podium{width:270px;height:46px;bottom:4%}.f-video-grid{gap:14px}.f-order-album{position:static;order:-1}.f-order-album .f-album-main{aspect-ratio:1}}
@media(max-width:430px){.f-video-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:8px}.f-video-card{flex:0 0 72vw;scroll-snap-align:center}.f-videos-swipe{display:block}}


/* V22 nav call pill + square album + footer icons */
.f-nav-phone{position:relative;min-height:44px;padding:0 18px 0 14px;display:inline-flex;align-items:center;gap:8px;margin-left:auto;background:linear-gradient(180deg,#E8C97A,#D9B45C);color:#2B1B14!important;border:1px solid rgba(255,255,255,.35);border-radius:999px;font-family:var(--f-mono);font-size:14px;font-weight:700;letter-spacing:.04em;white-space:nowrap;text-decoration:none;box-shadow:0 6px 16px rgba(0,0,0,.25)}
.f-nav-phone .f-ico{width:18px;height:18px;transform-origin:50% 20%}.f-nav-phone:hover{background:linear-gradient(180deg,#F2DA9B,#E3C070)}.f-nav-phone:focus-visible{outline:2px solid #fff;outline-offset:2px}
.f-order-grid{align-items:start}.f-order-album{align-self:start;min-width:0}.f-order-album figure{margin:0}.f-order-album .f-album-main{width:100%;height:auto;aspect-ratio:1;min-height:0;object-fit:cover;object-position:center;border-radius:10px}.f-album-thumbs img{aspect-ratio:1;object-fit:cover}.f-album-trust{list-style:none;margin:14px 0 0;padding:14px 0 0;border-top:1px solid var(--f-line);display:grid;gap:10px}.f-album-trust li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#4A3A30}.f-album-trust .f-ico{width:18px;height:18px;color:var(--f-gold-ink);flex:0 0 auto}
.f-foot-logos{display:flex;align-items:center;gap:14px;margin:0 0 16px}.f-foot-logos img{height:34px;width:auto;display:block}.f-foot-logos img+i+img{height:26px}.f-foot-logos i{width:1px;height:24px;background:rgba(232,201,122,.4)}.f-foot-lines{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:10px}.f-foot-lines li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.55}.f-foot-lines .f-ico{width:18px;height:18px;color:var(--f-gold-bright);flex:0 0 auto;margin-top:2px}.f-foot-lines a{color:#F9F2E6;text-decoration:underline;text-underline-offset:3px;min-height:44px;display:inline-flex;align-items:center}.f-pay .f-ico{width:18px;height:18px;vertical-align:-4px;margin-right:8px;color:var(--f-gold-bright)}
@media(prefers-reduced-motion:no-preference){.f-nav-phone{transition:background .18s ease,transform .18s ease}.f-nav-phone::after{content:"";position:absolute;inset:-4px;border-radius:999px;border:2px solid rgba(232,201,122,.85);opacity:0;pointer-events:none;animation:fCallRing 4s ease-out infinite}@keyframes fCallRing{0%{opacity:.8;transform:scale(.92)}18%{opacity:0;transform:scale(1.25)}100%{opacity:0;transform:scale(1.25)}}.f-nav-phone .f-ico{animation:fCallBell 4s ease-in-out infinite}@keyframes fCallBell{0%,4%,14%,100%{transform:rotate(0)}6%{transform:rotate(-13deg)}8%{transform:rotate(11deg)}10%{transform:rotate(-7deg)}12%{transform:rotate(5deg)}}}
@media(max-width:860px){.f-nav-phone{font-size:13px;padding:0 14px 0 12px;min-height:44px}.f-order-album .f-album-main{aspect-ratio:1}.f-album-trust{gap:8px}.f-album-trust li{font-size:13px}.f-foot-logos img{height:30px}.f-foot-logos img+i+img{height:24px}}

.f-usage-box ul li::before{content:"\2014";color:var(--f-gold-bright);flex:0 0 auto}

.f-nav{overflow:hidden}


/* V23 footer, videos, benefits, scidiagram, CTA effects */
.f-foot-logos{display:flex;align-items:center;gap:18px;margin:0 0 22px}.f-foot-logos img{height:68px;width:auto;display:block}.f-foot-logos img+i+img{height:52px}.f-foot-logos i{width:1px;height:48px;background:rgba(232,201,122,.4)}
.f-footer h3{font-family:var(--f-mono);font-size:26px;font-weight:600;letter-spacing:.06em;color:var(--f-gold-bright);margin:0 0 16px}.f-foot-lines{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:12px}.f-foot-lines li{display:flex;align-items:flex-start;gap:12px;font-size:15.5px;line-height:1.55}.f-foot-lines .f-ico{width:20px;height:20px;color:var(--f-gold-bright);flex:0 0 auto;margin-top:2px}.f-foot-lines a{color:#F9F2E6;text-decoration:underline;text-underline-offset:3px;display:inline-flex;align-items:center;min-height:0;padding:10px 0;margin:-10px 0}.f-foot-copy{width:min(100% - 44px,var(--f-container));margin:36px auto 0;padding-top:20px;border-top:1px solid rgba(232,201,122,.22);text-align:center}.f-foot-copy p{margin:0;font-size:13.5px;letter-spacing:.02em;color:#EFE3D2}
.f-video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.f-benefits-grid{display:grid;grid-template-columns:1fr 190px 1fr;gap:20px 28px;align-items:center;margin-top:28px}.f-benefit-photos{margin:0;display:grid;gap:12px}.f-benefit-photos img{width:100%;aspect-ratio:1;object-fit:cover;display:block;border:6px solid #fff;outline:1px solid rgba(201,163,78,.35);border-radius:16px;box-shadow:0 14px 32px rgba(43,27,20,.14);background:linear-gradient(160deg,#F1E6D4,#EADFC9)}.f-center img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.f-primary:hover{background:var(--f-red-hover);box-shadow:0 10px 26px rgba(166,40,56,.42),0 0 0 1px rgba(232,201,122,.30)}.f-outline:hover{background:rgba(140,29,42,.08);box-shadow:0 8px 18px rgba(43,27,20,.14)}.f-cream:hover{background:#fff;box-shadow:0 10px 24px rgba(43,27,20,.18)}.f-zalo:hover{background:#0053CC;box-shadow:0 8px 20px rgba(0,104,255,.35)}.f-chip-call:hover{box-shadow:0 8px 18px rgba(43,27,20,.16)}.f-chip-zalo:hover{box-shadow:0 8px 20px rgba(0,104,255,.35)}.f-nav ul a.emphasis:hover{box-shadow:0 6px 14px rgba(232,201,122,.28)}.floating-contact a:hover{box-shadow:0 14px 32px rgba(43,27,20,.34)}
@media(prefers-reduced-motion:no-preference){.f-btn,.f-chip,.sticky a,.floating-contact a,.f-nav ul a.emphasis{transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease}.floating-contact span{transition:opacity .18s ease}.f-primary:hover{transform:translateY(-1px) scale(1.02)}.f-order form .f-primary:hover{transform:translateY(-1px) scale(1.01)}.f-outline:hover,.f-cream:hover,.f-chip:hover{transform:translateY(-2px)}.f-zalo:hover{transform:translateY(-1px) scale(1.02)}.f-nav ul a.emphasis:hover{transform:translateY(-1px)}.floating-contact a:hover{transform:scale(1.08)}.f-btn:active,.f-chip:active{transform:translateY(0) scale(.98)}.f-order form .f-primary:active{transform:scale(.995)}.sticky a:active{transform:scale(.97)}.floating-contact a:active{transform:scale(.96)}.f-hero .f-actions .f-primary,.f-lineup .f-primary,.f-order form .f-primary,.sticky .f-primary{position:relative;overflow:hidden}.f-hero .f-actions .f-primary::after,.f-lineup .f-primary::after,.f-order form .f-primary::after,.sticky .f-primary::after{content:"";position:absolute;top:-2px;bottom:-2px;left:0;width:34%;pointer-events:none;background:linear-gradient(105deg,rgba(255,255,255,0) 0%,rgba(255,244,214,.34) 45%,rgba(232,201,122,.28) 60%,rgba(255,255,255,0) 100%);transform:translateX(-160%) skewX(-18deg);animation:fCtaShine 5.2s linear infinite}@keyframes fCtaShine{0%,78%{transform:translateX(-160%) skewX(-18deg)}90%,100%{transform:translateX(420%) skewX(-18deg)}}.f-lineup .f-primary::after{animation-delay:1.3s}.f-order form .f-primary::after{animation-delay:2.6s}.sticky .f-primary::after{animation-delay:3.9s}.f-nav-phone:hover{transform:translateY(-1px)}}
@media(max-width:860px){.f-foot-logos img{height:60px}.f-foot-logos img+i+img{height:48px}.f-foot-logos i{height:42px}.f-foot-copy{width:min(100% - 32px,var(--f-container));margin-top:28px}.f-benefits-grid{grid-template-columns:1fr}.f-benefit-photos{order:-1;grid-template-columns:repeat(3,1fr);gap:10px}.f-benefit-photos img{border-width:4px;border-radius:12px}}
@media(max-width:430px){.f-footer h3{font-size:22px}}

.f-benefits-grid .f-benefit-photos img{height:auto;min-height:0}
@media(max-width:860px){.f-benefits-grid .f-benefit-photos img{height:auto;min-height:0}}

@media(min-width:861px){.f-benefit-col article{min-height:187px}}

.f-center img{width:100%;height:100%;max-width:none;max-height:none;object-fit:cover;border-radius:50%}


/* V24 footer logo row */
.f-foot-logos{width:min(100% - 44px,var(--f-container));margin:0 auto 28px}
.f-footer .f-container>div>*:first-child{margin-top:0}
.f-footer .f-disclaimer{margin:0 0 14px}
.f-footer .f-container>div>strong{display:block}
@media(max-width:860px){.f-foot-logos{margin-bottom:24px}}
@media(max-width:430px){.f-foot-logos{width:min(100% - 32px,var(--f-container));margin-bottom:22px}}


/* V25 font */
.f-page h1,.f-page h2{font-weight:600}
.f-hero h1{font-weight:700}
.f-hero .f-price strong{font-weight:700}
.f-script,.f-ctaband p,.f-shortcut{font-weight:500}
.f-countdown,.f-hero-countdown,.f-hc-units i{font-variant-numeric:tabular-nums}

/* ===== V26 ===== */
.f-page h1{line-height:1.22}
.f-page h2{line-height:1.28}
.f-hero-countdown{gap:20px;padding:18px 26px;border-radius:16px;box-shadow:0 12px 30px rgba(140,29,42,.34),inset 0 0 0 1.5px rgba(232,201,122,.55)}
.f-hc-label{font-size:12px}
.f-hc-units i{font-size:36px}
.f-hc-units b{min-width:54px}
.f-hc-units small{font-size:11px}
.f-nav .f-container{min-height:80px}
.f-nav-logo img:first-child{width:60px;height:60px}
.f-nav-logo img+img{height:39px}
.f-benefits h2{max-width:none}
@media(prefers-reduced-motion:no-preference){
  .f-hero-countdown{animation:fCdGlow 5.6s ease-in-out infinite}
  @keyframes fCdGlow{
    0%,100%{box-shadow:0 12px 30px rgba(140,29,42,.34),inset 0 0 0 1.5px rgba(232,201,122,.55)}
    50%{box-shadow:0 12px 34px rgba(140,29,42,.46),0 0 22px rgba(201,163,78,.35),inset 0 0 0 1.5px rgba(232,201,122,.85)}
  }
}
@media(max-width:860px){
  .f-nav .f-container{min-height:72px}
  .f-nav-logo img:first-child{width:60px;height:60px}
  .f-hero-countdown{padding:16px 18px}
  .f-hc-label{font-size:12px}
  .f-hc-units i{font-size:30px}
  .f-hc-units b{min-width:48px}
}
@media(max-width:430px){
  .f-nav .f-container{min-height:64px}
  .f-nav-logo img:first-child{width:51px;height:51px}
  .f-videos h2{font-size:22px;letter-spacing:0}
}
/* ===== V27 ===== */
body.f-modal-open{overflow:hidden}
.f-modal{position:fixed;inset:0;z-index:90;display:none}
.f-modal.show{display:flex;align-items:center;justify-content:center;padding:24px}
.f-modal-backdrop{position:absolute;inset:0;background:rgba(24,10,8,.55);backdrop-filter:blur(3px)}
.f-modal-card{position:relative;display:flex;flex-direction:column;width:min(560px,100%);max-height:min(90vh,860px);max-height:min(90dvh,860px);background:var(--f-bg);border-radius:18px;box-shadow:0 30px 80px rgba(20,8,6,.45);overflow:hidden}
.f-modal-head{display:flex;justify-content:flex-end;padding:10px 10px 0}
.f-modal-close{width:44px;height:44px;display:grid;place-items:center;border:0;border-radius:50%;background:var(--f-bg-2);color:var(--f-red);font-size:18px;cursor:pointer}
.f-modal-close:hover{background:#E8D9BE}
.f-order .f-modal-close{width:44px;min-width:44px;height:44px;margin-top:0;flex:0 0 44px;padding:0}
.f-modal-body{overflow-y:auto;padding:0 18px calc(18px + env(safe-area-inset-bottom,0px));-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
.f-modal-body form{box-shadow:none}
.f-hc-units{align-items:flex-start}
.f-hc-units em{font-size:20px;line-height:36px}
.sticky{gap:10px;padding:10px max(12px,env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-right))}
@media(prefers-reduced-motion:no-preference){
  .f-modal.show .f-modal-backdrop{animation:fModalFade .22s ease}
  .f-modal.show .f-modal-card{animation:fModalIn .28s cubic-bezier(.3,1.1,.4,1)}
  @keyframes fModalFade{from{opacity:0}to{opacity:1}}
  @keyframes fModalIn{from{opacity:0;transform:translateY(22px) scale(.985)}to{opacity:1;transform:none}}
}
@media(max-width:860px){
  .f-modal.show{align-items:flex-end;padding:0}
  .f-modal-card{width:100%;max-height:88vh;max-height:88dvh;border-radius:18px 18px 0 0}
  .f-hc-units em{font-size:17px;line-height:30px}
  .f-hero .f-actions{grid-template-columns:1fr 1fr;gap:10px}
  .f-hero .f-actions .f-primary{grid-column:1/-1}
  .f-ctaband .f-container{grid-template-columns:1fr 1fr;gap:10px}
  .f-ctaband p{grid-column:1/-1}
}
@media(max-width:430px){
  .f-videos h2{font-size:16px;line-height:1.3;letter-spacing:-.04em;text-wrap:balance}
  .f-video-grid{display:grid;grid-template-columns:1fr;overflow:visible;gap:18px;padding-bottom:0}
  .f-video-card{flex:none;width:min(320px,100%);margin-inline:auto}
  .f-videos-swipe{display:none}
  .f-lineup-row{display:block;overflow:visible;margin-inline:0;padding:4px 0 8px}
  .f-lineup article{width:100%;margin:0 0 14px}
  .f-lineup article:last-child{margin-bottom:0}
  .f-lineup .f-swipe{display:none}
}
/* ===== V28 ===== */
@media(max-width:860px){
  .f-video-grid{display:grid;grid-template-columns:1fr;overflow:visible;gap:18px;padding-bottom:0}
  .f-video-card{flex:none;width:min(320px,100%);margin-inline:auto}
  .f-videos-swipe{display:none}
  .f-lineup-row{display:block;overflow:visible;overflow-x:visible;margin-inline:0;padding:4px 0 8px;scroll-snap-type:none;contain:none}
  .f-lineup article{width:min(100%,620px);max-width:100%;margin:0 auto 16px;flex:none;scroll-snap-align:none}
  .f-lineup article:last-child{margin-bottom:0}
  .f-lineup .f-swipe{display:none}
}
/* ===== V29 ===== */
.f-lineup figure span{left:12px;right:auto}
@media(max-width:860px){
  .f-docs{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .f-video-card{width:100%;margin-inline:0}
}
/* ===== V34 ===== */
/* 5. countdown dong bo: order line dung markup + style he^ hero */
.f-countdown.f-cd-sync{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 14px;width:fit-content;max-width:100%;margin:16px auto 26px;padding:14px 22px;background:var(--f-red);border-radius:14px;color:#fff;box-shadow:0 10px 26px rgba(140,29,42,.28),inset 0 0 0 1.5px rgba(232,201,122,.55)}
.f-countdown.f-cd-sync .f-hc-label{font-size:12px}
.f-countdown.f-cd-sync .f-hc-units{align-items:flex-start}
@media(prefers-reduced-motion:no-preference){.f-countdown.f-cd-sync{animation:fCdGlow 5.6s ease-in-out infinite}}
@media(max-width:860px){.f-countdown.f-cd-sync{padding:12px 16px;gap:8px 10px;margin:14px auto 22px}}
@media(max-width:860px){
/* 1. hero: goi + zalo cung 1 hang, text 1 hang, cao -10% */
.f-hero .f-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.f-hero .f-actions .f-primary{grid-column:1/-1}
.f-hero .f-actions .f-outline,.f-hero .f-actions .f-zalo{min-height:41px;padding:0 10px;white-space:nowrap;font-size:13.5px;gap:7px}
.f-hero .f-actions .f-btn svg{flex:0 0 auto}
/* 2. ctaband: text phone 1 hang, zalo hep hon */
.f-ctaband .f-container{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:10px}
.f-ctaband p{grid-column:1/-1;margin-bottom:2px}
.f-ctaband .f-btn{white-space:nowrap;padding:0 10px;font-size:13.5px;gap:7px}
/* 3. cam ket: box thap, gap hep, chu nho */
.f-trust-grid{gap:10px}
.f-trust-grid article{padding:12px 14px}
.f-trust-grid h3{font-size:15px;margin:0 0 4px}
.f-trust-grid article p{font-size:13px;line-height:1.45;margin:0}
/* 4. order: chip goi + zalo 1 hang, text 1 hang */
.f-tail-actions{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:10px}
.f-tail-actions .f-chip{white-space:nowrap;padding:9px 10px;font-size:13.5px;gap:7px}
/* 4. title form -20% + can giua */
#leadForm h2{font-size:clamp(20px,5.4vw,26px);text-align:center}
/* 4. combo box: vuong, noi bat, dong sat nhau */
.f-radios{gap:8px;margin:14px 0}
.radio-tier{border-radius:14px;padding:10px 12px}
.radio-tier b{font-size:14.5px;line-height:1.3}
.radio-tier small{display:block;line-height:1.35;margin-top:2px;font-size:12.5px}
.radio-tier:has(input:checked){border-color:var(--f-red);background:#FFF6EF;box-shadow:0 0 0 2px rgba(140,29,42,.18),0 8px 20px rgba(140,29,42,.14)}
}

/* ===== V36 ===== */
/* 1. herbcards: icon + title cung 1 hang, box gon chieu cao */
.f-herb-grid article{display:grid;grid-template-columns:auto 1fr;column-gap:12px;row-gap:8px;align-items:center;padding:16px 18px}
.f-herb-grid i{grid-column:1;grid-row:1;font-size:18px;line-height:1}
.f-herb-grid h3{grid-column:2;grid-row:1;margin:0;font-size:17.5px;line-height:1.3}
.f-herb-grid article p{grid-column:1/-1;grid-row:2;margin:0;font-size:14.5px;line-height:1.55}
/* 2. form dat hang (section + popup dung chung #leadForm): thu gon khoang cach */
.f-order form{padding:22px 24px}
.f-order form h2{margin:0 0 10px}
.f-radios{gap:8px;margin:12px 0}
.radio-tier{padding:10px 13px}
.f-order label{gap:4px;margin:9px 0}
.f-order input,.f-order textarea{min-height:46px;padding:10px 13px}
.total{padding:10px 13px;margin:12px 0}
.total b{font-size:20px}
.f-order button{margin-top:6px}
.f-order small{margin-top:8px}
.form-msg{min-height:18px;margin-top:6px}
.f-modal-body{padding:0 16px calc(14px + env(safe-area-inset-bottom,0px))}
@media(max-width:430px){.f-order form{padding:16px 16px 18px}}
/* 3. footer CHINH SACH: font-size -30% */
.f-footer h3{font-size:18px}
@media(max-width:430px){.f-footer h3{font-size:15px}}
/* ===== V37 ===== */
/* 1. form font -30% + spacing (section + popup dung chung #leadForm) */
.f-order form{font-size:12px;padding:16px 18px}
.f-order form h2{font-size:clamp(17.5px,2.24vw,26.5px);margin:0 0 8px}
.f-order label{font-size:12px;gap:3px;margin:7px 0}
.f-order input,.f-order textarea{font-size:12.5px;min-height:38px;padding:8px 11px}
.f-radios{gap:6px;margin:10px 0}
.radio-tier{padding:8px 11px;gap:8px}
.radio-tier input{width:16px;height:16px;min-height:16px;flex:0 0 16px;margin:2px 0 0}
.radio-tier b{font-size:11.5px;line-height:1.3}
.radio-tier small{font-size:10.5px;line-height:1.35;margin-top:1px}
.total{padding:8px 11px;margin:10px 0;font-size:12px}
.total b{font-size:14px}
.f-order form button{margin-top:5px;font-size:13px;min-height:46px}
.f-order form small{font-size:10px;margin-top:6px}
.form-msg{min-height:14px;margin-top:5px}
.f-modal-body{padding:0 14px calc(12px + env(safe-area-inset-bottom,0px))}
@media(max-width:860px){.f-order input,.f-order textarea{font-size:16px;min-height:42px}}
@media(max-width:430px){.f-order form{padding:14px 14px 16px}}
/* 2. thu hep khoang cach giua cac section */
.f-section{padding:56px 0}
.f-hero{padding:64px 0 46px}
@media(max-width:860px){.f-section{padding:40px 0}.f-hero{padding:46px 0 34px}}
/* ===== V38 ===== */
.f-section{padding:44px 0}
.f-hero{padding:52px 0 38px}
.f-hero h1{font-size:31px}
@media(max-width:860px){
.f-section{padding:30px 0}
.f-hero{padding:36px 0 26px}
.f-hero h1{font-size:22px}
.f-usage-box{padding:22px 18px;gap:18px;font-size:13.5px;line-height:1.5}
.f-usage-box::before{inset:7px}
.f-usage-box h2{font-size:12.5px}
.f-usage-box li{margin:0 0 10px;gap:0 10px}
.f-usage-box li strong{font-size:13.5px;margin:0 0 2px}
.f-usage-box>div+div{padding-top:16px}
.f-usage-box p{padding-top:10px;margin-top:10px}
.f-usage-box ul li{gap:7px}
}
@media(min-width:861px){
.f-order form{font-size:14px;padding:22px 24px}
.f-order form h2{font-size:clamp(20px,2.6vw,30px);margin:0 0 10px}
.f-order label{font-size:13.5px;gap:4px;margin:9px 0}
.f-order input,.f-order textarea{font-size:14px;min-height:42px;padding:9px 13px}
.radio-tier input{width:18px;height:18px;min-height:18px;flex:0 0 18px}
.f-radios{gap:10px;margin:12px 0}
.radio-tier{padding:11px 13px;gap:10px}
.radio-tier b{font-size:13.5px}
.radio-tier small{font-size:12px}
.total{padding:11px 13px;margin:12px 0;font-size:14px}
.total b{font-size:17px}
.f-order form button{margin-top:6px;font-size:15px;min-height:50px}
.f-order form small{font-size:11.5px;margin-top:7px}
.f-order-grid{align-items:stretch}
.f-order-grid form{display:flex;flex-direction:column;justify-content:space-between}
.f-order-grid .f-order-album{align-self:start}
}
/* ===== V39 ===== */
@media(max-width:860px){
.f-footer strong{font-size:15.5px}
}
/* ===== V40 ===== */
.f-eyebrow{font-size:15px}
/* ===== V41 ===== */
.f-impdocs .f-lead{max-width:72ch}
.f-impdocs-group{margin-top:24px;background:#fff;border:1px solid var(--f-line);border-radius:14px;padding:22px}
.f-impdocs-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:16px}
.f-impdocs-tag{flex:0 0 auto;background:var(--f-red);color:#fff;font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;padding:7px 12px;border-radius:999px;white-space:nowrap}
.f-impdocs-head h3{margin:0 0 5px;color:var(--f-red);font-size:19px}
.f-impdocs-head p{margin:0;font-size:14.5px;line-height:1.65}
.f-impdocs-grid{display:grid;gap:14px;grid-template-columns:repeat(3,1fr)}
.f-impdocs-grid.f-impdocs-n2{grid-template-columns:repeat(2,1fr)}
.f-impdocs-item{margin:0;background:var(--f-bg);border:1px solid var(--f-gold);border-radius:10px;padding:10px}
.f-impdocs-item a{position:relative;display:block;border-radius:6px;overflow:hidden}
.f-impdocs-item img{display:block;width:100%;height:auto;border-radius:6px;background:#fff}
.f-impdocs-zoom{position:absolute;right:8px;bottom:8px;width:30px;height:30px;border-radius:50%;background:rgba(110,18,32,.85);color:#fff;font-size:17px;line-height:30px;text-align:center}
.f-impdocs-item figcaption{margin-top:9px;font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--f-gold-ink);line-height:1.5}
.f-impdocs-note{display:flex;gap:10px;align-items:center;margin:22px 0 0;background:var(--f-bg-2);border:1px dashed var(--f-gold);border-radius:10px;padding:13px 16px;font-size:14px}
.f-impdocs-note .f-ico{flex:0 0 auto;width:20px;height:20px;color:var(--f-red)}
.f-trust-hi{display:block;background:linear-gradient(120deg,var(--f-red),var(--f-red-deep));color:#fff;border-radius:14px;padding:20px 24px;margin-bottom:16px;animation:fTrustPulse 1.1s ease-out infinite}
.f-trust-hi-row{display:flex;gap:16px;align-items:center}
.f-trust-hi-imgs{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}
.f-trust-hi-imgs figure{margin:0;border-radius:10px;overflow:hidden;background:#fff;border:2px solid rgba(255,255,255,.35)}
.f-trust-hi-imgs img{display:block;width:100%;height:auto}
.f-trust-hi h3{margin:0 0 4px;color:var(--f-gold-bright);font-size:20px}
.f-trust-hi p{margin:0;color:#fff;font-size:15.5px;line-height:1.6}
.f-trust-hi-badge{flex:0 0 auto;width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center}
.f-trust-hi-badge .f-ico{width:24px;height:24px;color:var(--f-gold-bright)}
@keyframes fTrustPulse{0%{box-shadow:0 0 0 0 rgba(140,29,42,.5)}75%{box-shadow:0 0 0 15px rgba(140,29,42,0)}100%{box-shadow:0 0 0 0 rgba(140,29,42,0)}}
@media (prefers-reduced-motion:reduce){.f-trust-hi{animation:none}}
.f-trust-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
@media(max-width:860px){
.f-impdocs-group{padding:16px}
.f-impdocs-head{flex-direction:column;gap:8px}
.f-impdocs-grid,.f-impdocs-grid.f-impdocs-n2{grid-template-columns:repeat(2,1fr);gap:10px}
.f-impdocs-item{padding:7px}
.f-impdocs-item figcaption{font-size:10px}
.f-trust-hi{padding:15px 16px}
.f-trust-hi-row{gap:12px}
.f-trust-hi-imgs{grid-template-columns:1fr;gap:10px;margin-top:12px}
.f-trust-hi h3{font-size:17px}
.f-trust-hi p{font-size:13.5px}
.f-trust-hi-badge{width:38px;height:38px}
.f-trust-grid{grid-template-columns:repeat(2,1fr)}
}
/* ===== V42 ===== */
.f-impdocs .f-lead{max-width:none}
.f-impdocs-head{align-items:center;margin-bottom:8px}
.f-impdocs-head h3{margin:0}
.f-impdocs-desc{margin:0 0 16px;font-size:14.5px;line-height:1.65}
@media(max-width:860px){
.f-impdocs-head{flex-direction:row;flex-wrap:wrap;gap:10px}
.f-impdocs-desc{font-size:13.5px;margin-bottom:12px}
.f-trust-grid > article:nth-child(odd):last-child{grid-column:1/-1}
}
/* ===== V43 flowchart scidiagram (V47: mui ten thang nhu ban dau) ===== */
.f-sci-grid{gap:26px 46px}
.f-sci-grid article{position:relative}
.f-sci-grid article::after{content:'';position:absolute;width:42px;height:15px;background:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 34 12'%3E%3Cpath d='M33 6H4.5' fill='none' stroke='%23A97D2E' stroke-width='2' stroke-linecap='round'/%3E%3Cpath d='M10.5 1.5 4 6l6.5 4.5' fill='none' stroke='%23A97D2E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center/contain;pointer-events:none;animation:fArrowPulse 2.4s ease-in-out infinite}
@keyframes fArrowPulse{0%,100%{opacity:.55}50%{opacity:1}}
@media (prefers-reduced-motion:reduce){.f-sci-grid article::after{animation:none}}
@media(min-width:861px){
.f-sci-grid article::after{top:50%;margin-top:-8px}
.f-sci-grid article:nth-of-type(1)::after{right:-46px;transform:rotate(14deg)}
.f-sci-grid article:nth-of-type(3)::after{right:-46px;transform:rotate(-14deg)}
.f-sci-grid article:nth-of-type(2)::after{left:-46px;transform:scaleX(-1) rotate(14deg)}
.f-sci-grid article:nth-of-type(4)::after{left:-46px;transform:scaleX(-1) rotate(-14deg)}
}
@media(max-width:860px){
.f-sci-grid{grid-template-columns:1fr 1fr;gap:40px 12px;align-items:stretch}
.f-sci-grid article:nth-of-type(1){grid-area:1/1}
.f-sci-grid article:nth-of-type(2){grid-area:1/2}
.f-scidiagram .f-center-wrap{grid-area:2/1/3/3;justify-self:center;margin:0}
.f-sci-grid article:nth-of-type(3){grid-area:3/1}
.f-sci-grid article:nth-of-type(4){grid-area:3/2}
.f-sci-grid article{padding:14px 12px}
.f-sci-grid article p{font-size:11px;margin-bottom:6px}
.f-sci-grid article h3{font-size:15.5px;margin:0 0 6px}
.f-sci-grid article span{font-size:13px;line-height:1.55}
.f-scidiagram .f-center-wrap .f-center{width:190px;height:190px}
.f-center-wrap figcaption{margin-top:10px}
.f-sci-grid article::after{width:40px;height:14px}
.f-sci-grid article:nth-of-type(1)::after{bottom:-30px;right:8%;transform:rotate(45deg)}
.f-sci-grid article:nth-of-type(2)::after{bottom:-30px;left:8%;transform:scaleX(-1) rotate(45deg)}
.f-sci-grid article:nth-of-type(3)::after{top:-30px;right:8%;transform:rotate(-45deg)}
.f-sci-grid article:nth-of-type(4)::after{top:-30px;left:8%;transform:scaleX(-1) rotate(-45deg)}
}
/* V43b: anh center nam gon trong circle */
.f-scidiagram .f-center{overflow:hidden}
.f-scidiagram .f-center img{width:100%;height:100%;max-width:none;max-height:none;object-fit:contain;border-radius:50%;padding:9%;box-sizing:border-box}
/* ===== V44: anh noi tiep tron ven trong circle + pulse CTA combo 2 ===== */
.f-scidiagram .f-center{position:relative}
.f-scidiagram .f-center img{position:absolute;inset:0;padding:15%;border-radius:0}
.f-lineup-row article.featured .f-btn{animation:fTrustPulse 1.1s ease-out infinite}
@media (prefers-reduced-motion:reduce){.f-lineup-row article.featured .f-btn{animation:none}}