/* V5: quieter typography, cinematic hero and a reversible formulation story. */
h1,.hero h1,.about-hero h1,.contact-intro h1{font-size:clamp(42px,4.5vw,68px);line-height:1.1}
h2,.section-heading h2,.technology h2{font-size:clamp(32px,3.45vw,50px);line-height:1.15}
h3{font-size:21px}.results-comparison h2,.about-care-copy h2{font-size:clamp(30px,3vw,44px)}
.mechanism-visual h1{font-size:clamp(40px,4vw,60px)}.mechanism-step h2{font-size:clamp(28px,2.7vw,39px)}.contact-band h2{font-size:clamp(32px,3.4vw,50px)}
.hero{background:var(--navy);color:var(--white);min-height:700px}
.hero-film{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero:after{background:linear-gradient(90deg,rgba(11,25,43,.83),rgba(11,25,43,.4) 48%,rgba(11,25,43,.07))}
.hero-content{width:57%;max-width:700px}.hero h1{max-width:660px}.hero p{color:#f0f3f6}.hero-buttons .button{background:var(--white);color:var(--navy);border-color:var(--white)}.hero-buttons .button.outline{background:transparent;color:var(--white)}
.film-toggle{position:absolute;bottom:26px;right:28px;background:#10283e88;color:white;border:1px solid #e4edf6aa;padding:8px 18px;border-radius:30px;font-size:12px;backdrop-filter:blur(8px)}
.formula-intro{padding-top:100px;padding-bottom:80px}.formula-intro h2{margin-bottom:25px}.formula-intro p{max-width:780px;margin-bottom:26px;font-size:17px}
.formula-scroll{height:580svh;position:relative;background:radial-gradient(ellipse at 50% 42%,#eef5f9 0%,#f8f7f3 65%)}
.formula-stage{height:calc(100svh - 98px);min-height:580px;position:sticky;top:98px;overflow:hidden;perspective:1000px}
.formula-halo{position:absolute;left:50%;top:47%;width:600px;height:600px;transform:translate(-50%,-50%);border:1px solid #cedde650;border-radius:50%}
.serum-rig{position:absolute;left:50%;top:47%;width:160px;height:470px;transform:translate(-50%,-50%);filter:drop-shadow(18px 24px 18px #14283e40);will-change:transform}
.serum-closed{position:absolute;inset:0;overflow:hidden}.serum-closed img{position:absolute;max-width:none;width:705px;height:470px;left:50%;top:0;transform:translateX(-50%);object-fit:contain}
.serum-open{position:absolute;width:313px;height:470px;left:-36px;top:0;opacity:0}
.serum-open img{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:contain}
.serum-body{clip-path:polygon(0 17%,52% 17%,52% 100%,0 100%)}
.serum-wand{clip-path:polygon(35% 0,100% 0,100% 100%,52% 100%,52% 17%,35% 17%);transform-origin:50% 50%;will-change:transform}
.ingredient-deck{position:absolute;inset:0;pointer-events:none}
.ingredient-card{position:absolute;left:50%;top:43%;width:220px;opacity:0;transform:translate(-50%,-50%) scale(.04);text-align:center;will-change:transform,opacity}
.ingredient-image{height:180px;width:180px;margin:0 auto 25px;position:relative;filter:drop-shadow(0 18px 16px #223f5630);animation:ingredient-float 4.8s ease-in-out infinite}
.ingredient-card:nth-child(2) .ingredient-image{animation-delay:-1.4s}.ingredient-card:nth-child(3) .ingredient-image{animation-delay:-2.6s}.ingredient-card:nth-child(4) .ingredient-image{animation-delay:-3.5s}
.ingredient-image img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.ingredient-image.igf,.ingredient-image.fgf{overflow:hidden;border-radius:50%}.ingredient-image.igf img,.ingredient-image.fgf img{position:absolute;width:238.5%;height:149%;max-width:none;left:-69.5%;top:-24.5%;object-fit:fill;border-radius:0}
.ingredient-image.turmeric img{object-position:center}.ingredient-copy{opacity:0}.ingredient-copy h3{font-size:22px;margin-bottom:14px;letter-spacing:-.015em}.ingredient-copy p{font-size:14px;line-height:1.65;max-width:215px;margin:auto}
.formula-stage-bottom{position:absolute;left:40px;right:40px;bottom:30px;display:flex;align-items:end;justify-content:space-between;gap:20px}
.formula-stage-caption{font-size:14px;color:var(--navy);letter-spacing:.025em}.float-toggle{background:none;border:0;border-bottom:1px solid #728391;font-size:12px;color:var(--muted);padding:8px 0}
.formula-progress{position:absolute;bottom:0;height:2px;left:0;right:0;background:#dce5eb}.formula-progress i{display:block;width:calc(var(--progress,0)*100%);height:100%;background:var(--navy)}
.float-paused .ingredient-image{animation-play-state:paused}
@keyframes ingredient-float{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-12px) rotate(2deg)}}
.feature-table .comparison-value{display:block;margin-top:12px;font-size:14px;line-height:1.55}.feature-table tbody th{font-size:18px}.feature-table td{font-size:14px;line-height:1.6}.feature-table .technology-brand{background:transparent;color:var(--muted);padding:0}.feature-table th:nth-child(2) .technology-brand{background:var(--navy);color:var(--white);padding:6px 13px}
.paper-link{margin-top:25px;margin-right:20px}.compare-enlarge{background:none;border:0;border-bottom:1px solid var(--navy);color:var(--navy);margin-top:22px;cursor:pointer;font:inherit;font-size:14px;display:block;width:fit-content}
.original-dialog{width:min(1180px,calc(100% - 32px));max-height:90svh;padding:30px;background:var(--white);border:0;border-radius:20px;color:var(--navy)}.original-dialog::backdrop{background:#102030bb;backdrop-filter:blur(8px)}.original-dialog>.button{display:flex;margin-left:auto}.original-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:30px}.original-grid figure{margin:0}.original-grid h2{font-size:24px;margin-bottom:15px}.original-grid img{width:100%;height:auto;object-fit:contain}
body[data-language=zh] h1,body[data-language=zh] .hero h1{font-size:clamp(36px,4vw,60px)}body[data-language=zh] h2{font-size:clamp(30px,3.1vw,44px)}
@media(max-width:760px){
 h1,.hero h1,.contact-intro h1{font-size:41px}h2,.section-heading h2,.technology h2,.contact-band h2,.results-comparison h2{font-size:32px}.mechanism-visual h1{font-size:38px}.mechanism-step h2{font-size:29px}
 .hero{min-height:820px;padding:80px 24px}.hero-film{inset:0;height:100%;object-position:57% center}.hero:after{background:linear-gradient(180deg,#0e233bdd,#0e233b95 48%,#0e233b30)}.hero-content{width:100%}.hero .product-name{font-size:14px}.hero h1{line-height:1.13}.film-toggle{bottom:22px;right:22px}
 .formula-intro{padding-top:80px;padding-bottom:80px}.formula-intro p{font-size:15px}.formula-intro h2{font-size:34px}
 .formula-scroll{height:660svh}.formula-stage{top:80px;height:calc(100svh - 80px);min-height:620px}.formula-halo{width:380px;height:380px}.serum-rig{top:45%;scale:none;transform-origin:center}
 .ingredient-card{width:160px;top:45%}.ingredient-image{width:88px;height:88px;margin-bottom:10px}.ingredient-copy h3{font-size:17px;margin-bottom:7px}.ingredient-copy p{font-size:11px;line-height:1.6;max-width:155px}.formula-stage-bottom{left:20px;right:20px;bottom:25px}.formula-stage-caption{font-size:11px}.float-toggle{font-size:10px}
 .original-grid{grid-template-columns:1fr}.original-dialog{padding:22px}.feature-table tbody th{font-size:16px}.feature-table td,.feature-table .comparison-value{font-size:12px}
 body[data-language=zh] h1,body[data-language=zh] .hero h1{font-size:36px}body[data-language=zh] h2{font-size:30px}
}
@media(prefers-reduced-motion:reduce){
 .formula-scroll{height:auto}.formula-stage{position:relative;top:0;height:auto;min-height:0;padding:80px 20px}.serum-rig{position:relative;top:auto;left:auto;transform:none!important;margin:0 auto 40px;scale:.85}.serum-open{display:none}.ingredient-deck{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.ingredient-card{position:relative;left:auto;top:auto;width:auto;opacity:1!important;visibility:visible!important;transform:none!important}.ingredient-copy{opacity:1!important}.ingredient-image{animation:none}.formula-stage-bottom{position:relative;left:auto;right:auto;bottom:auto;margin-top:40px}.float-toggle,.formula-progress{display:none}
}
@media(max-width:760px) and (prefers-reduced-motion:reduce){.ingredient-deck{grid-template-columns:repeat(2,1fr);gap:35px 15px}}
.serum-body{clip-path:polygon(0 19%,43% 19%,43% 29%,52% 32%,52% 100%,0 100%)}
.serum-wand{clip-path:polygon(35% 0,100% 0,100% 100%,52% 100%,52% 30%,43% 19%,35% 19%)}
.serum-body{clip-path:polygon(0 19%,43% 19%,43% 30%,50.5% 37%,50.5% 100%,0 100%)}
@media(max-width:760px){.ingredient-copy p{font-size:12px;line-height:1.55}}
.serum-closed{overflow:visible}.serum-closed .closed-body{clip-path:inset(31% 0 0 0)}.serum-closed .closed-cap{clip-path:inset(0 0 69% 0);transform-origin:center 16%;will-change:transform}
.chart-head h3{font-size:20px}form h2{font-size:30px}
@media(max-width:760px){.chart-head h3{font-size:18px}form h2{font-size:27px}}
/* Smaller comparison imagery and supplied reversed brand mark. */
.technology-visual{display:block;position:relative;width:88px;height:88px;margin:0 auto 20px;overflow:hidden;border-radius:50%}
.technology-visual .technology-image{width:100%;height:100%;margin:0;object-fit:cover}
.technology-visual-evs .technology-image{position:absolute;max-width:none;width:238.5%;height:149%;left:-69.5%;top:-24.5%;object-fit:fill;border-radius:0}
.feature-table th:nth-child(2) .technology-brand{width:144px;height:40px;display:flex;align-items:center;justify-content:center;padding:0 12px}
.table-brand-logo{width:120px;height:50px;object-fit:contain;filter:brightness(0) invert(1)}
.ingredient-image.turmeric img{object-fit:contain;border-radius:0}
@media(max-width:760px){.technology-visual{width:72px;height:72px;margin-bottom:18px}.feature-table th:nth-child(2) .technology-brand{width:126px;height:36px}.table-brand-logo{width:106px;height:46px}}
.ingredient-image.turmeric img{position:absolute;width:160%;height:160%;max-width:none;left:-30%;top:-30%;object-fit:contain}
/* Independent bottle and cap/brush parts share a continuous reversible path. */
.formula-intro{text-align:center}.formula-intro p{margin-left:auto;margin-right:auto}
.formula-intro.intro-reveal{opacity:0;transform:translateY(24px);transition:opacity 1.8s ease,transform 2s cubic-bezier(.2,.65,.3,1)}
.formula-intro.intro-reveal.is-revealed{opacity:1;transform:translateY(0)}
.serum-rig{width:320px;height:510px;top:44%;transform-origin:50% 50%}
.bottle-pivot{position:absolute;left:160px;top:145px;width:0;height:0;z-index:2;transform-origin:0 0}
.bottle-pivot img{position:absolute;max-width:none;left:-75.66px;top:-8.32px;width:151.32px;height:390.52px;object-fit:contain;clip-path:polygon(33% 0,67% 0,67% 14%,75% 15%,75% 96%,24% 96%,24% 15%,33% 14%)}
.cap-pivot,.brush-pivot{position:absolute;left:160px;top:193.88px;width:0;height:0;transform-origin:0 0;will-change:transform,left,top}
.cap-pivot{z-index:3}.brush-pivot{z-index:1}
.cap-pivot img,.brush-pivot img{position:absolute;max-width:none;left:-75.66px;top:-143.52px;width:151.32px;height:390.52px;object-fit:contain}
.cap-pivot img{clip-path:inset(0 0 63.25% 0)}
.brush-pivot img{clip-path:inset(36.75% 0 0 0)}
.ingredient-image.ginger,.ingredient-image.turmeric{overflow:hidden;border-radius:0}
.ingredient-image.turmeric img{position:absolute;width:277.778%;height:173.611%;max-width:none;left:-90.278%;top:-51.389%;object-fit:fill;border-radius:0}
.ingredient-image.ginger img{position:absolute;width:250%;height:156.25%;max-width:none;left:-71.25%;top:-31.25%;object-fit:fill;border-radius:0}
@media(prefers-reduced-motion:reduce){.formula-intro.intro-reveal{opacity:1;transform:none;transition:none}.serum-rig{height:510px}}

.formula-intro.intro-reveal p,.formula-intro.intro-reveal .button{opacity:0;transform:translateY(14px);transition:opacity 1.7s ease,transform 1.9s ease}.formula-intro.intro-reveal.is-revealed p,.formula-intro.intro-reveal.is-revealed .button{opacity:1;transform:none}.formula-intro.intro-reveal p{transition-delay:.2s}.formula-intro.intro-reveal .button{transition-delay:.4s}
@media(prefers-reduced-motion:reduce){.formula-intro.intro-reveal p,.formula-intro.intro-reveal .button{opacity:1;transform:none;transition:none}}
/* V10: paired visual evidence and a compact technology overview. */
.home-results{padding:80px 0}.home-results .results-layout{display:grid;gap:32px}.home-results .results-copy h2{margin-bottom:24px}.home-results .results-copy p{font-size:16px;line-height:1.75;max-width:560px;margin-bottom:24px}.home-results .results-charts .charts{grid-template-columns:1fr;gap:20px}.home-results .chart-card{padding:22px 24px 18px}.home-results .chart-head strong{font-size:36px}.home-results .chart-head h3{font-size:20px}.home-results .chart-card>p{font-size:12px}.home-results .chart-card svg{display:block;max-height:220px;margin:4px auto;width:100%}.home-results .legend{margin-top:8px}.home-results .results-photo .compare{aspect-ratio:1.55}.home-results .results-photo{min-width:0}.home-results .results-charts{min-width:0}
.technology.section{--technology-content-gap:14px;padding:80px 0}.technology h2{font-size:clamp(26px,3vw,42px);margin-bottom:var(--technology-content-gap);letter-spacing:-.04em}.technology>.container>p{max-width:980px;font-size:14px;line-height:1.5}.technology .table-wrap{margin:20px 0 0}.technology .feature-table th,.technology .feature-table td{padding:11px 16px;line-height:1.35}.technology .feature-table thead th{padding:12px 14px 15px;font-size:16px}.technology .feature-table tbody th{font-size:16px}.technology .feature-table td,.technology .feature-table .comparison-value{font-size:13px;line-height:1.35}.technology .feature-table .comparison-value{display:inline;margin:0}.technology .status-check{margin-right:6px;font-size:15px}.technology .technology-visual{width:58px;height:58px;margin-bottom:10px}.technology .technology-brand{margin-top:8px}.technology .feature-table th:nth-child(2) .technology-brand{width:126px;height:32px;padding:0 10px}.technology .table-brand-logo{width:106px;height:40px}.technology .feature-table th:first-child{width:28%}
@media(min-width:901px){.home-results .results-layout{grid-template-columns:1fr 1fr;grid-template-areas:'copy charts' 'photo charts';gap:30px 54px;align-items:start}.home-results .results-copy{grid-area:copy;align-self:end}.home-results .results-photo{grid-area:photo}.home-results .results-charts{grid-area:charts}.home-results .results-copy h2{font-size:clamp(32px,3.1vw,46px)}.technology h2{white-space:nowrap}.technology .container{width:min(1320px,calc(100% - 80px))}}
@media(max-width:900px){.home-results .results-copy{order:0}.home-results .results-photo{order:1}.home-results .results-charts{order:2}.home-results .chart-card svg{max-height:none}.technology .feature-table{min-width:650px}.technology .feature-table th,.technology .feature-table td{padding:10px 12px}.technology .feature-table tbody th{font-size:14px}.technology .feature-table thead th{font-size:14px}.technology .technology-visual{width:48px;height:48px}.technology>.container>p{font-size:13px}.technology .feature-table .comparison-value,.technology .feature-table td{font-size:12px}}
/* V11: two-line introduction, small centered checks, equal table rows. */
.technology .status-check{display:grid;place-items:center;width:18px;height:18px;font-size:12px;line-height:1;margin:0 auto 4px}.technology .feature-table .comparison-value{display:block;margin:0;line-height:1.3}.technology .feature-table tbody tr{height:60px}.technology .feature-table tbody th,.technology .feature-table tbody td{height:60px;padding:7px 12px}.technology .technology-visual{width:48px;height:48px}.technology .feature-table thead th{padding-top:8px;padding-bottom:12px}.technology .table-wrap{margin-top:var(--technology-content-gap)}
.journal-logo{display:block;width:auto;max-width:100%;height:48px;object-fit:contain;object-position:left center;margin:0 0 20px}.paper-bottom .journal-logo{width:200px;height:62px;margin:0 0 18px}.preprint-source{margin-top:28px;display:flex;align-items:center;gap:18px}.preprint-source .journal-logo{width:154px;height:46px;margin:0}.preprint-source span{font-size:13px;color:var(--muted)}
@media(max-width:760px){.technology .feature-table tbody th,.technology .feature-table tbody td,.technology .feature-table tbody tr{height:66px}.technology>.container>p br{display:none}.journal-logo{max-width:200px}}