:root{
  --bg:#ffffff;--bg-soft:#f7f8f7;--bg-dark:#0a0a0a;--ink:#0e1411;--muted:#5e6a64;
  --line:#e7eae8;--green:#0bbf60;--green-dark:#0aa553;--green-soft:#e8f8ef;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--ink)}
body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.btn{display:inline-block;background:var(--ink);color:#fff;font-weight:600;padding:14px 28px;border-radius:8px;border:none;cursor:pointer;font-size:15px;transition:background .2s,transform .15s}
.btn:hover{background:#000;transform:translateY(-1px)}
.btn-green{background:var(--green)}
.btn-green:hover{background:var(--green-dark)}
.btn-lg{padding:17px 34px;font-size:16px}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--bg-soft)}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:2.5px;color:var(--green);text-transform:uppercase;font-weight:700;margin-bottom:14px}
.topbar{background:var(--bg-dark);color:#9aa39e;text-align:center;font-size:11px;padding:9px 16px;letter-spacing:2px;text-transform:uppercase}
.topbar strong{color:var(--green)}
header{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:70}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.logo{font-family:'Russo One','Inter',system-ui,sans-serif;font-weight:400;font-size:26px;letter-spacing:1.5px;color:#0e1411;display:inline-flex;align-items:baseline;gap:2px;line-height:1;text-shadow:0 1px 0 rgba(255,255,255,.55),0 -1px 0 rgba(0,0,0,.08)}
.logo .acc{background:linear-gradient(180deg,#2dd87a 0%,#15c060 45%,#0a8a3e 100%);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:none}
.logo .lt{font-family:'Inter',system-ui,sans-serif;font-weight:300;letter-spacing:3.5px;font-size:.5em;color:#7a8580;text-transform:uppercase;margin-left:10px;align-self:center;text-shadow:none;transform:translateY(-2px)}
.nav ul{display:flex;gap:32px;list-style:none}
.nav ul a{font-size:14px;font-weight:500;color:var(--ink)}
.nav ul a:hover{color:var(--green)}
.nav-drop{position:relative;display:flex;align-items:center}
.nav-drop-t{font-size:14px;font-weight:500;color:var(--ink);cursor:pointer}
.nav-drop:hover .nav-drop-t,.nav-drop:focus-within .nav-drop-t{color:var(--green)}
.nav-drop-m{position:absolute;top:calc(100% + 10px);left:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;min-width:200px;display:none;flex-direction:column;box-shadow:0 14px 36px rgba(0,0,0,.1);z-index:80}
.nav-drop:hover .nav-drop-m,.nav-drop:focus-within .nav-drop-m{display:flex}
.nav-drop-m a{padding:9px 12px;font-size:14px;font-weight:500;color:var(--ink);border-radius:8px;white-space:nowrap}
.nav-drop-m a:hover{background:var(--bg-soft);color:var(--green)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav .cta-mini{background:var(--ink);color:#fff;padding:10px 18px;border-radius:6px;font-size:13px;font-weight:600}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;background:none;border:none;cursor:pointer;padding:9px;border-radius:8px}
.nav-toggle:hover{background:var(--bg-soft)}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .28s ease,opacity .2s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:55;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s ease,visibility .3s ease}
.nav-backdrop.open{opacity:1;visibility:visible;pointer-events:auto}
/* breadcrumb */
.crumb{padding:20px 0 0;font-size:13px;color:var(--muted)}
.crumb a:hover{color:var(--green)}
.crumb span{color:var(--ink);font-weight:600}
.crumb i{font-style:normal;margin:0 8px;color:var(--line)}
/* product hero */
.p-hero{padding:36px 0 64px}
.p-hero .container{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.p-media{aspect-ratio:1/1;background:radial-gradient(circle at 50% 45%,rgba(11,191,96,.16) 0%,var(--bg-dark) 62%);border-radius:20px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.p-media img{width:66%;max-width:340px;height:auto;filter:drop-shadow(0 30px 50px rgba(11,191,96,.25)) drop-shadow(0 10px 20px rgba(0,0,0,.4));animation:floaty 7s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-14px) rotate(-1deg)}}
@media(prefers-reduced-motion:reduce){.p-media img{animation:none}}
.p-info h1{font-size:44px;line-height:1.08;font-weight:900;letter-spacing:-1px;margin-bottom:10px}
.p-info .sci{font-size:15px;color:var(--muted);margin-bottom:20px}
.p-info .tldr{font-size:16px;font-weight:700;color:var(--ink);margin:0 0 16px;padding:11px 15px;background:var(--green-soft,#eafaf1);border-left:3px solid var(--green);border-radius:0 10px 10px 0;line-height:1.45}
.p-info .lede{font-size:16px;color:var(--muted);margin-bottom:24px}
.price-box{display:flex;align-items:baseline;gap:12px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:22px}
.price-box .pr{font-size:30px;font-weight:900;letter-spacing:-.5px}
.price-box .pu{font-size:13px;color:var(--muted)}
.price-box .stock{margin-left:auto;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--green);display:flex;align-items:center;gap:7px}
.price-box .stock::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green)}
.voltab{margin:6px 0 18px}
.voltab-h{font-size:13px;font-weight:800;letter-spacing:.3px;margin-bottom:9px;text-transform:uppercase}
.voltab-h em{font-style:normal;color:var(--muted);font-weight:600;text-transform:none;letter-spacing:0}
.vchips{display:flex;flex-wrap:wrap;gap:8px}
.vchip{border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:13px;background:var(--bg-soft);display:flex;align-items:center;gap:6px}
.vchip b{font-weight:800}
.vchip span{color:var(--green);font-weight:800;font-size:12px}
.vchip-base{background:transparent}
.vnote{font-size:12px;color:var(--muted);margin-top:9px}
.flag-badge{display:inline-block;background:var(--green);color:#04140b;font-weight:800;font-size:11px;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:8px;margin-bottom:12px}
.fx{padding:10px 0 6px}
.fx-card{display:flex;align-items:center;gap:18px;border:1px solid var(--line);border-radius:16px;padding:16px 20px;background:var(--bg-soft);text-decoration:none;transition:border-color .2s,transform .2s}
.fx-card:hover{border-color:var(--green);transform:translateY(-2px)}
.fx-im{width:84px;height:84px;object-fit:contain;flex:0 0 auto;filter:drop-shadow(0 10px 14px rgba(0,0,0,.18))}
.fx-tx{flex:1;min-width:0}
.fx-badge{display:inline-block;background:var(--green);color:#04140b;font-weight:800;font-size:10px;letter-spacing:.05em;text-transform:uppercase;padding:3px 8px;border-radius:6px;margin-bottom:6px}
.fx-tx h3{font-size:18px;margin:0 0 4px;color:var(--ink)}
.fx-tx p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.5}
.fx-go{flex:0 0 auto;color:var(--green);font-weight:800;font-size:14px}
@media(max-width:560px){.fx-card{flex-wrap:wrap}.fx-go{width:100%}}
.cmp-sec{padding:10px 0}
.cmp-head{text-align:center;margin-bottom:22px}
.cmp-head h2{font-size:30px;margin:0 0 6px}
.cmp-head p{color:var(--muted);font-size:15px;margin:0}
.cmp-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:stretch}
.cmp-col{border:1px solid var(--line);border-radius:18px;padding:24px 22px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px}
.cmp-old{background:var(--bg-soft);opacity:.9}
.cmp-new{background:linear-gradient(180deg,#0e1411,#0a0a0a);color:#fff;border-color:#1f2a24;box-shadow:0 18px 44px rgba(11,191,96,.18)}
.cmp-name{font-size:18px;font-weight:800}
.cmp-new .cmp-name span{color:var(--green)}
.cmp-old .cmp-name span{color:var(--muted);font-weight:600}
.cmp-tag{font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:800;color:var(--muted)}
.cmp-new .cmp-tag{color:var(--green)}
.cmp-stat{display:flex;align-items:center;gap:10px;margin:6px 0}
.cmp-n{font-size:54px;font-weight:900;line-height:1}
.cmp-l{font-size:12px;text-align:left;opacity:.8}
.cmp-bar{width:100%;height:10px;background:rgba(0,0,0,.08);border-radius:6px;overflow:hidden}
.cmp-new .cmp-bar{background:rgba(255,255,255,.12)}
.cmp-bar i{display:block;height:100%;background:#9aa39e;border-radius:6px}
.cmp-bar-g i{background:var(--green)}
.cmp-pct{font-size:40px;font-weight:900;letter-spacing:-1px}
.cmp-new .cmp-pct{color:var(--green)}
.cmp-sub{font-size:12px;color:var(--muted)}
.cmp-new .cmp-sub{color:#9aa39e}
.cmp-new .btn{margin-top:8px}
.cmp-vs{align-self:center;font-weight:900;color:var(--muted);font-size:18px}
.cmp-foot{font-size:11px;color:var(--muted);line-height:1.6;margin-top:16px;max-width:760px;margin-left:auto;margin-right:auto;text-align:center}
@media(max-width:680px){.cmp-grid{grid-template-columns:1fr}.cmp-vs{padding:4px 0}}
/* visual comparison table */
.cx-sec{padding:6px 0}
.cx-head{text-align:center;margin-bottom:18px}
.cx-head h2{font-size:30px;margin:0 0 6px}
.cx-head p{color:var(--muted);font-size:15px;margin:0}
.cxt{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;max-width:640px;margin:0 auto}
.cxr{display:grid;grid-template-columns:1.1fr 1fr 1.15fr;gap:1px;background:var(--line)}
.cxk,.cxc{background:var(--bg);padding:13px 14px;font-size:14px;display:flex;flex-direction:column;justify-content:center;gap:3px}
.cxk{color:var(--muted);font-weight:700}
.cxc{align-items:center;text-align:center}
.cxc small{color:var(--muted);font-size:11px}
.cxc b{font-size:22px;line-height:1}
.cxc.new{background:rgba(11,191,96,.08)}
.cxc.new b,.cxok{color:var(--green)}
.cxr.h .cxc{font-weight:800;font-size:15px}
.cxok,.cxx{font-size:18px;font-weight:900}
.cxx{color:var(--muted)}
.cxbar{width:78px;height:8px;border-radius:5px;background:rgba(0,0,0,.08);overflow:hidden;margin-bottom:3px}
.cxbar i{display:block;height:100%;width:0;background:#9aa39e;border-radius:5px;transition:width 1.1s cubic-bezier(.2,.7,.2,1)}
.cxbar.g i{background:var(--green)}
.cx-foot{font-size:11px;color:var(--muted);line-height:1.6;margin:14px auto 0;max-width:760px;text-align:center}
/* animated journey */
.rj-sec{padding:8px 0}
.rj-card{border:1px solid var(--line);border-radius:20px;padding:24px 22px 18px;max-width:720px;margin:0 auto;background:var(--bg)}
.rj-h{font-size:24px;font-weight:900;letter-spacing:-.4px;margin-bottom:4px;text-align:center}
.rj-subt{text-align:center;color:var(--muted);font-size:14px;margin:0 0 22px}
.rj-track{position:relative;margin:6px 6px 2px}
.rj-line{position:absolute;left:18px;right:18px;top:15px;height:5px;background:rgba(0,0,0,.08);border-radius:3px}
.rj-line i{display:block;height:100%;width:0;background:var(--green);border-radius:3px;transition:width .65s cubic-bezier(.4,0,.2,1)}
.rj-dots{position:relative;display:flex;justify-content:space-between}
.rj-dot{width:34px;height:34px;border-radius:50%;border:2px solid var(--line);background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;color:var(--muted);cursor:pointer;position:relative;z-index:2;transition:transform .25s,border-color .25s,background .25s,color .25s}
.rj-dot:hover{transform:scale(1.08)}
.rj-dot.done{border-color:var(--green);color:var(--green)}
.rj-dot.on{background:var(--green);border-color:var(--green);color:#04140b;transform:scale(1.16);box-shadow:0 0 0 6px rgba(11,191,96,.16)}
.rj-dl{position:absolute;top:38px;left:50%;transform:translateX(-50%);font-size:10px;color:var(--muted);white-space:nowrap}
.rj-stage{display:flex;gap:18px;flex-wrap:wrap;margin:30px 0 6px;align-items:center}
.rj-detail{flex:1;min-width:240px;display:flex;align-items:center;gap:15px}
.rj-emoji{font-size:44px;line-height:1;transition:transform .3s}
.rj-wk{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--green)}
.rj-txt{font-size:15.5px;line-height:1.45;margin-top:3px;color:var(--ink)}
.rj-detail>div:last-child{flex:1}
.rj-weight{flex:0 0 200px;min-width:180px}
.rj-wlbl{font-size:12px;color:var(--muted);margin-bottom:5px}
.rj-wlbl b{color:var(--ink);font-size:18px;font-weight:900;float:right}
.rj-wbar{height:15px;border-radius:8px;background:rgba(0,0,0,.07);overflow:hidden}
.rj-wbar i{display:block;height:100%;width:100%;background:var(--green);border-radius:8px;transition:width .8s cubic-bezier(.4,0,.2,1)}
.rj-wsub{font-size:10px;color:var(--muted);margin-top:4px}
.rj-ctrls{display:flex;align-items:center;gap:14px;margin-top:16px}
.rj-play{border:0;background:var(--green);color:#04140b;font-weight:800;font-size:14px;padding:11px 18px;border-radius:10px;cursor:pointer;white-space:nowrap}
.rj-play:active{transform:translateY(1px)}
.rj-scrub{flex:1;accent-color:var(--green);cursor:pointer}
.rj-foot{font-size:11px;color:var(--muted);line-height:1.6;margin:14px auto 0;text-align:center}
@media(max-width:600px){.cxr{grid-template-columns:1fr 1fr 1fr}.cxk{font-size:12px}.rj-stage{flex-direction:column;align-items:stretch}.rj-weight{flex:1}}
.p-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.p-quick{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.p-quick b{color:var(--ink);font-weight:700}
.promobar{background:var(--green);color:#04140b;text-align:center;font-size:13px;font-weight:800;letter-spacing:.2px;padding:8px 14px;line-height:1.3}
.rou{font-size:12px;color:var(--muted);margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
/* sections */
section{padding:52px 0}
.sec-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:30px;line-height:1.15;font-weight:900;letter-spacing:-.6px;margin-bottom:18px}
h2 .acc{color:var(--green)}
.prose p{font-size:16px;color:#3a443e;margin-bottom:16px;max-width:780px}
.prose p:last-child{margin-bottom:0}
/* research grid */
.research-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}
.r-card{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:24px}
.r-card h3{font-size:16px;font-weight:700;margin-bottom:7px}
.r-card p{font-size:14px;color:var(--muted);line-height:1.6}
/* spec table */
.spec{width:100%;border-collapse:collapse;margin-top:24px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.spec tr{border-bottom:1px solid var(--line)}
.spec tr:last-child{border-bottom:none}
.spec th{text-align:left;padding:15px 20px;font-size:13px;letter-spacing:.5px;color:var(--muted);font-weight:600;width:38%;background:var(--bg-soft)}
.spec td{padding:15px 20px;font-size:14px;font-weight:600;color:var(--ink)}
/* faq */
.faq-grid{max-width:820px}
.faq-item{border-bottom:1px solid var(--line);padding:22px 0}
.faq-item:last-child{border-bottom:none}
.faq-item summary{cursor:pointer;font-size:16px;font-weight:600;display:flex;justify-content:space-between;align-items:center;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--green);font-weight:400}
.faq-item[open] summary::after{content:"\2212"}
.faq-item p{color:var(--muted);font-size:15px;line-height:1.7;margin-top:12px}
/* related */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.rel-card{background:var(--bg);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .2s,border-color .2s}
.rel-card:hover{transform:translateY(-3px);border-color:var(--green)}
.rel-card .ri{aspect-ratio:1/1;background:linear-gradient(180deg,#f7f8f7,#eef0ee);display:flex;align-items:center;justify-content:center}
.rel-card .ri img{width:74%;height:auto;filter:drop-shadow(0 18px 22px rgba(0,0,0,.2))}
.rel-card .rb{padding:18px}
.rel-card h4{font-size:16px;font-weight:700;margin-bottom:3px}
.rel-card .rc{font-size:11px;color:var(--green);text-transform:uppercase;letter-spacing:1.2px;font-weight:600;margin-bottom:10px}
.rel-card .rp{font-size:14px;font-weight:700}
/* final cta */
.final{background:var(--bg-dark);color:#fff;text-align:center;padding:80px 0}
.final h2{color:#fff;margin-bottom:14px}
.final p{color:#9aa39e;font-size:16px;margin-bottom:26px;max-width:520px;margin-left:auto;margin-right:auto}
.final .btn{background:var(--green)}
.final .btn:hover{background:var(--green-dark)}
/* footer */
footer{background:var(--bg);color:var(--muted);padding:56px 0 0;font-size:14px;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
footer h5{color:var(--ink);font-size:12px;letter-spacing:2px;text-transform:uppercase;margin-bottom:16px;font-weight:700}
footer ul{list-style:none}
footer li{margin-bottom:10px}
footer a:hover{color:var(--green)}
.foot-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:13px}
.disclaimer{background:var(--bg-soft);color:var(--muted);padding:20px 24px;text-align:center;font-size:11px;letter-spacing:1px;line-height:1.7;border-top:1px solid var(--line)}
/* accordions */
section:has(> .container > details.acc){padding:0!important;background:transparent!important}
section:has(> .container > details.acc) > .container{padding-top:0;padding-bottom:0}
details.acc{border:1px solid var(--line);border-radius:14px;margin:10px 0;background:#fff;overflow:hidden}
details.acc>summary{list-style:none;cursor:pointer;padding:18px 22px;font-size:19px;font-weight:800;display:flex;justify-content:space-between;align-items:center;gap:12px}
details.acc>summary::-webkit-details-marker{display:none}
details.acc>summary::after{content:"+";color:var(--green);font-size:24px;font-weight:700;line-height:1}
details.acc[open]>summary::after{content:"–"}
details.acc .acc-body{padding:2px 22px 20px}
.dose-table{width:100%;border-collapse:collapse;font-size:14px;margin-top:6px;min-width:300px}
.dose-table th,.dose-table td{text-align:left;padding:10px 12px;border:1px solid var(--line)}
.dose-table th{background:var(--bg-soft)}
.dose-table td:first-child{font-weight:700}
/* self-hosted compound intro video */
.cvideo-sec{padding:14px 0}
.vrail{position:relative;margin-top:6px}
.vrail-track{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:4px 2px 14px}
.vrail-track::-webkit-scrollbar{height:7px}
.vrail-track::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}
.vcard{flex:0 0 auto;scroll-snap-align:center}
.vcard video{height:clamp(380px,62vh,540px);width:auto;max-width:90vw;display:block;background:#000;border-radius:16px;border:1px solid var(--line);object-fit:cover}
.vrail-hint{font-size:13px;color:var(--muted);margin:2px 2px 0}
@media(max-width:560px){.vcard video{height:auto;width:82vw;max-width:82vw}}
/* EU stocked / 24h dispatch trust band */
.eu-band{background:var(--green-soft,#eafaf1);border-top:1px solid #bfe9d2;border-bottom:1px solid #bfe9d2}
.eu-band .container{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 26px;padding:13px 22px}
.eu-band span{font-size:14px;font-weight:700;color:#0a6b39;display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
@media(max-width:560px){.eu-band .container{gap:7px 16px;padding:12px 16px}.eu-band span{font-size:12.5px}}
/* quick facts card */
.qf-sec{padding:14px 0 0}
.qf-wrap{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--line)}
.qf-card{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:1px}
.qf-item{background:#fff;padding:13px 16px;display:flex;flex-direction:column;gap:3px}
.qf-item span{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.qf-item b{font-size:15px;color:var(--ink)}
.qf-coa{background:var(--green-soft,#eafaf1);padding:13px 16px;display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--green);text-decoration:none;font-size:14px;border-top:1px solid var(--line)}
.qf-coa:hover{background:#ddf6e7}
/* on-this-page nav */
.toc{position:sticky;top:61px;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.toc .container{display:flex;align-items:center;gap:12px;padding:9px 22px}
.toc-links{display:flex;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;flex:1;min-width:0}
.toc-links a{flex:0 0 auto;font-size:13px;font-weight:700;color:var(--muted);text-decoration:none;padding:6px 12px;border-radius:999px;white-space:nowrap}
.toc-links a:hover{background:var(--bg-soft);color:var(--ink)}
.toc-buy{flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;background:var(--green);color:#04140b;font-weight:800;font-size:13px;padding:9px 16px;border-radius:9px;text-decoration:none;white-space:nowrap}
.toc-buy b{font-weight:800}
.toc-buy:hover{filter:brightness(.96)}
section[id]{scroll-margin-top:112px}
/* references */
.reflist{margin:14px 0 0;padding-left:22px;display:flex;flex-direction:column;gap:10px}
.reflist li{font-size:14px;line-height:1.5}
.reflist a{color:var(--green);text-decoration:none;font-weight:600}
.reflist a:hover{text-decoration:underline}
/* why-paired line on related cards */
.rwhy{font-size:12.5px;color:var(--muted);line-height:1.45;margin:4px 0 2px}
/* age gate */
html,body{max-width:100%;overflow-x:hidden;overflow-x:clip;overscroll-behavior-x:none}
.age-gate{position:fixed;inset:0;width:100%;max-width:100%;z-index:9999;background:#f4f5f4;display:flex;align-items:center;justify-content:center;padding:40px 20px;overflow:auto;box-sizing:border-box}
.age-gate.gone{opacity:0;pointer-events:none;transition:opacity .35s ease}
.age-gate-inner{position:relative;z-index:2;width:100%;max-width:560px}
.age-gate-logo{font-family:'Russo One','Inter',sans-serif;font-weight:400;font-size:38px;letter-spacing:2px;color:var(--ink);text-align:center;margin-bottom:30px;display:flex;justify-content:center;align-items:baseline;gap:2px}
.age-gate-logo .acc{color:var(--green)}
.age-gate-logo .lt{font-weight:300;letter-spacing:3.5px;font-size:.45em;color:#7a8580;text-transform:uppercase;margin-left:8px}
.age-gate-card{background:#fff;border-radius:22px;padding:42px 42px 34px;box-shadow:0 30px 80px rgba(0,0,0,.06);box-sizing:border-box;max-width:100%}
.age-gate-card h2{font-size:27px;margin-bottom:12px;font-weight:800;letter-spacing:-.5px}
.age-gate-card>p.lede{color:#5a5a5a;font-size:15px;line-height:1.6;margin-bottom:26px}
.ag-check{display:flex;gap:14px;align-items:flex-start;padding:17px 19px;background:#f7f8f7;border:1.5px solid #ebede9;border-radius:13px;margin-bottom:11px;cursor:pointer;user-select:none}
.ag-check:hover{border-color:var(--green);background:#f3faf6}
.ag-check input{appearance:none;width:22px;height:22px;border-radius:6px;border:2px solid #c8ccc8;background:#fff;cursor:pointer;flex-shrink:0;margin-top:1px;position:relative}
.ag-check input:checked{background:var(--green);border-color:var(--green)}
.ag-check input:checked::after{content:"";position:absolute;left:6px;top:2px;width:6px;height:11px;border:solid #fff;border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}
.ag-check span{font-size:14.5px;line-height:1.55}
.ag-enter{width:100%;background:var(--green);color:#fff;font-weight:700;font-size:16px;padding:17px;border:none;border-radius:999px;cursor:pointer;margin-top:20px;transition:background .2s,opacity .2s}
.ag-enter:not(:disabled):hover{background:var(--green-dark)}
.ag-enter:disabled{opacity:.35;cursor:not-allowed}
.ag-fineprint{margin-top:20px;color:#888;font-size:12px;line-height:1.65}
.ag-exit{display:block;text-align:center;margin-top:22px;font-size:13px;color:#888}
body.gate-on{overflow:hidden}
/* sticky cta */
.sticky-cta{display:none}
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .45s cubic-bezier(.2,.7,.2,1),transform .45s cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1!important;transform:none!important;transition:none!important}}
[data-reveal].in-view{opacity:1;transform:translateY(0)}
@media(max-width:880px){
  .nav-toggle{display:flex}
  .nav ul{position:fixed;top:0;right:0;width:82%;max-width:340px;height:100dvh;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:96px 28px 32px;box-shadow:-12px 0 50px rgba(0,0,0,.16);z-index:60;overflow-y:auto;display:none}
  .nav ul.open{display:flex;animation:navdraw .3s cubic-bezier(.4,0,.2,1)}
  @keyframes navdraw{from{transform:translateX(100%)}to{transform:translateX(0)}}
  .nav ul li{width:100%}
  .nav ul a{display:block;padding:17px 4px;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}
  .nav-drop{display:block;width:100%}
  .nav-drop-t{display:block;padding:17px 4px 9px;font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
  .nav-drop-m{position:static;display:flex !important;flex-direction:column;border:none;box-shadow:none;padding:0;min-width:0}
  .nav-drop-m a{padding-left:18px}
  .p-hero .container{grid-template-columns:1fr;gap:30px}
  .p-info h1{font-size:34px}
  .research-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sticky-cta{display:flex;align-items:center;gap:12px;position:fixed;bottom:0;left:0;right:0;background:var(--bg);border-top:1px solid var(--line);padding:10px 16px;z-index:100;box-shadow:0 -4px 20px rgba(0,0,0,.05)}
  .sticky-cta .sc-price{font-weight:900;font-size:19px;color:var(--ink);flex:0 0 auto}
  .sticky-cta .btn{flex:1;display:block;text-align:center}
  .toc-buy{display:none}
  body{padding-bottom:78px}
}
@media(max-width:560px){
  .container{padding:0 18px}
  section{padding:48px 0}
  .p-info h1{font-size:29px}
  h2{font-size:24px}
  .age-gate{padding:24px 13px}
  .age-gate-card{padding:28px 18px 24px}
  .age-gate-card h2{font-size:22px}
  .ag-check span{font-size:14px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .spec th{width:46%}
}

/* === Research Library (M3) === */
.article{padding:44px 0 56px}
.article .container{max-width:820px}
.art-head{margin-bottom:30px}
.art-head h1{font-size:39px;line-height:1.14;font-weight:900;letter-spacing:-1px;margin:6px 0 14px}
.art-meta{font-size:13px;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap}
.art-body h2{font-size:25px;line-height:1.2;margin:40px 0 14px;letter-spacing:-.4px;scroll-margin-top:90px}
.art-body h3{font-size:18px;margin:26px 0 9px;font-weight:700}
.art-body p{font-size:16.5px;color:#333d37;margin-bottom:16px;line-height:1.75}
.art-body ul,.art-body ol{margin:0 0 18px 22px}
.art-body li{font-size:16.5px;color:#333d37;margin-bottom:9px;line-height:1.7}
.art-body strong{color:var(--ink);font-weight:700}
.art-body a{color:var(--green-dark);text-decoration:underline}
.callout{background:var(--green-soft);border-left:3px solid var(--green);border-radius:8px;padding:17px 20px;margin:24px 0;font-size:15px;line-height:1.65}
.callout strong{display:block;margin-bottom:3px;color:var(--ink)}
.toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin:26px 0 30px}
.toc h4{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);margin-bottom:11px}
.toc ol{margin:0 0 0 18px}
.toc li{margin-bottom:6px;font-size:14.5px}
.toc a{color:var(--ink)}
.toc a:hover{color:var(--green)}
.art-cta{margin-top:40px;padding:28px;background:var(--bg-dark);color:#fff;border-radius:16px;text-align:center}
.art-cta h3{color:#fff;font-size:20px;margin-bottom:8px;font-weight:800}
.art-cta p{color:#9aa39e;font-size:14px;margin-bottom:18px}
.hub-intro{max-width:720px}
.hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.guide-card{display:block;background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:28px 24px;transition:transform .2s,border-color .2s}
.guide-card:hover{transform:translateY(-4px);border-color:var(--green)}
.guide-card .gnum{font-size:12px;font-weight:800;letter-spacing:1.5px;color:var(--green);text-transform:uppercase;margin-bottom:14px;display:block}
.guide-card h3{font-size:18px;font-weight:800;margin-bottom:8px;letter-spacing:-.3px}
.guide-card p{font-size:14px;color:var(--muted);line-height:1.6;margin-bottom:14px}
.guide-card .gmore{font-size:13px;font-weight:700;color:var(--ink)}
.guide-card:hover .gmore{color:var(--green)}
@media(max-width:880px){.hub-grid{grid-template-columns:1fr}.art-head h1{font-size:30px}}