*{box-sizing:border-box}body{margin:0;font:17px/1.65 Georgia,'Times New Roman',serif;color:#1d2a2e;background:#fbfcfb}
h1,h2,h3,nav,.btn,footer{font-family:system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif}
a{color:#0b6b66}.w{max-width:860px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid #d9e2df}header .w{display:flex;justify-content:space-between;align-items:center;padding:14px 20px}
header b{font:700 18px system-ui,sans-serif}nav a{margin-left:18px;text-decoration:none;font-size:15px}
.disc{background:#eef4f2;border-bottom:1px solid #d9e2df;font:14px/1.5 system-ui,sans-serif;padding:8px 0}
.hero{padding:48px 0 32px}h1{font-size:2.1rem;line-height:1.2;margin:0 0 14px}h2{font-size:1.4rem;margin:36px 0 10px}
.btn{display:inline-block;background:#0b6b66;color:#fff;padding:13px 24px;border-radius:6px;text-decoration:none;font-weight:600}
.btn:hover,.btn:focus{background:#084f4b}a:focus,.btn:focus{outline:3px solid #f2b705;outline-offset:2px}
table{border-collapse:collapse;width:100%;font:15px system-ui,sans-serif}td,th{border-bottom:1px solid #d9e2df;padding:9px 8px;text-align:left;vertical-align:top}th{width:38%}
.small{font:14px/1.55 system-ui,sans-serif;color:#41524f}details{border-bottom:1px solid #d9e2df;padding:12px 0}summary{cursor:pointer;font:600 16px system-ui,sans-serif}
footer{margin-top:56px;background:#14282a;color:#cfdcd9;padding:28px 0;font-size:14px;line-height:1.6}footer a{color:#fff}
@media(max-width:560px){h1{font-size:1.65rem}nav a{margin-left:10px}}/* v2 layout */
main:not(.w){padding:0;max-width:none}
.two{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
img{max-width:100%;height:auto;display:block;border-radius:14px}
.hero{padding:56px 0;background:linear-gradient(180deg,#e9f3f0,#fbfcfb)}.hero img{border-radius:0;mix-blend-mode:multiply}
.lead{font-size:1.15rem}
.facts{background:#14282a;color:#fff}.facts ul{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:0 auto;padding:26px 20px;font:14px/1.4 system-ui,sans-serif}
.facts strong{display:block;font-size:2rem;line-height:1.1;color:#8fd9cf}
.feat{padding:52px 0}.feat.rev{background:#f1f6f4}.feat.rev .two>img{order:2}
.metrics{list-style:none;padding:0;margin:18px 0 0}.metrics li{border-left:3px solid #0b6b66;padding:2px 0 2px 14px;margin:0 0 14px}
.metrics b{display:block;font:600 16px system-ui,sans-serif}.metrics span{font-size:15.5px;color:#41524f}
.specs{padding:52px 0;background:#f1f6f4}.specgrid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.dark{background:#000;border-radius:14px;overflow:hidden}.dark img{border-radius:0}
h3{font-size:1.05rem;margin:18px 0 4px}.specs-t h3:first-child{margin-top:0}
.how{padding:52px 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
figure{margin:0}video{width:100%;border-radius:12px;background:#000;aspect-ratio:1/1;object-fit:cover}
figcaption{font:15px/1.5 system-ui,sans-serif;margin-top:10px}figcaption b{display:block;font-size:17px}
.cta{background:#0f3d3e;color:#fff;padding:56px 0}.cta h2{margin-top:0}.cta .small{color:#cfe3df}.cta .btn{background:#f2b705;color:#14282a}.cta .btn:hover{background:#ffd23d}
.ticks{padding-left:20px;font-family:system-ui,sans-serif;margin:0 0 22px}.ticks li{margin-bottom:6px}
.faq{padding:52px 0}.faq .w{max-width:760px}
@media(max-width:760px){.two,.specgrid,.steps{grid-template-columns:1fr}.feat.rev .two>img{order:0}.facts ul{grid-template-columns:1fr 1fr}.hero{padding:32px 0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.study{padding:22px 0;border-top:1px solid #d9e2df}.study h3{font-size:1.08rem;line-height:1.4;margin:0 0 4px}.journal{font:700 13px system-ui,sans-serif;color:#0b6b66;margin:0 0 8px}.study p{margin:0 0 10px}.study a{font:600 15px system-ui,sans-serif}
.note{background:#eef4f2;border-left:4px solid #0b6b66;border-radius:8px;padding:20px 24px;margin:28px 0}.note h2{margin-top:0;font-size:1.2rem}.note p{margin:0}
main>.w:first-child{padding-top:32px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#14282a;font:700 21px system-ui,sans-serif;letter-spacing:-.01em}.brand em{font-style:normal;color:#0b6b66}.brand img{border-radius:10px}
.card{display:block;font-style:normal;background:#eef4f2;border-left:4px solid #0b6b66;border-radius:8px;padding:18px 22px;line-height:1.8}
footer p:nth-child(2){color:#fff}
header .w{flex-wrap:wrap;gap:6px 0}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:22px 0}.card2{display:block;border:1px solid #d9e2df;border-radius:12px;padding:22px;background:#fff;text-decoration:none;color:inherit}.card2:hover{border-color:#0b6b66}.card2 h3{margin:0 0 8px;font-size:1.1rem;color:#0b6b66}.card2 p{margin:0;font-size:15.5px;color:#41524f}.card2 span{display:block;margin-top:10px;font:600 14px system-ui,sans-serif;color:#0b6b66}
.art{max-width:720px}.art h1{margin-top:8px}.meta{font:14px system-ui,sans-serif;color:#41524f}.related{background:#eef4f2;border-left:4px solid #0b6b66;border-radius:8px;padding:18px 22px;margin:34px 0}.related p{margin:0 0 8px}
@media(max-width:760px){.cards{grid-template-columns:1fr}}