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32px));min-height:calc(100vh - 86px);margin:0 auto;padding:72px 0 48px}.hero-copy{animation:rise-in .8s ease both}.eyebrow{margin:0 0 14px;color:var(--mint-dark);font-size:.78rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{max-width:720px;margin-bottom:24px;font-size:clamp(2.7rem,8vw,5.7rem);line-height:1.08;letter-spacing:-.07em}h1 span{display:inline-block;max-width:100%;white-space:nowrap}h2{margin-bottom:16px;font-size:clamp(2rem,4vw,3.4rem);line-height:1;letter-spacing:-.05em}h3{margin-bottom:10px;font-size:1.28rem}.hero-text,.section-heading p,.feature-card p,.detail-panel p,.about-copy p,.about-card p{color:var(--muted);font-size:1.04rem;line-height:1.8}.hero-text{max-width:620px;margin-bottom:32px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;max-width:100%}.primary-button,.secondary-button{padding:0 24px}.secondary-button{border:1px solid var(--line);background:#ffffffa8}.purifier-card{position:relative;display:grid;min-height:520px;place-items:center;border:1px solid var(--line);border-radius:42px;background:radial-gradient(circle at 24% 24%,rgba(255,255,255,.9),transparent 11rem),linear-gradient(160deg,#fffc,#ddf7eec7);box-shadow:var(--shadow);animation:float-in .9s .15s ease both}.purifier{position:relative;z-index:1;width:230px;height:310px;border:8px solid #2d4650;border-radius:46px 46px 56px 56px;background:linear-gradient(180deg,#fff,#e9fff5);box-shadow:inset 0 -20px 40px #78d9b32e;animation:bob 4s ease-in-out infinite}.face{display:flex;justify-content:center;gap:56px;padding-top:64px}.face span{width:18px;height:18px;border-radius:50%;background:#2d4650}.smile{width:46px;height:22px;margin:16px auto 0;border-bottom:6px solid #2d4650;border-radius:0 0 40px 40px}.vent{display:grid;gap:10px;width:124px;margin:54px auto 0}.vent i{display:block;height:8px;border-radius:999px;background:linear-gradient(90deg,var(--sky),var(--mint))}.light{width:42px;height:12px;margin:34px auto 0;border-radius:999px;background:#ffd56e;box-shadow:0 0 20px #ffd56ee6}.bubble{position:absolute;border-radius:50%;background:#91d8ff6b;animation:drift 6s ease-in-out infinite}.bubble-one{width:72px;height:72px;top:76px;left:68px}.bubble-two{width:46px;height:46px;right:72px;top:128px;animation-delay:-1.8s}.bubble-three{width:34px;height:34px;right:126px;bottom:116px;background:#78d9b36b;animation-delay:-3s}.shadow{position:absolute;bottom:70px;width:250px;height:34px;border-radius:50%;background:#2d46501f;filter:blur(2px)}.section{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:48px 0}.section-heading{max-width:680px;margin-bottom:24px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.feature-card,.detail-panel,.download-card,.about-card{border:1px solid var(--line);background:var(--card);box-shadow:0 18px 52px #306e671a}.feature-card{min-height:250px;padding:24px;border-radius:30px;transition:transform .2s ease,box-shadow .2s ease}.feature-card:hover{transform:translateY(-6px);box-shadow:0 24px 64px #306e6729}.feature-icon{display:grid;width:58px;height:58px;margin-bottom:20px;place-items:center;border-radius:22px;background:var(--cream);font-size:1.6rem}.detail-panel{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;padding:clamp(28px,5vw,54px);border-radius:38px;background:linear-gradient(135deg,#ffffffd6,#e8fbf4e6),repeating-linear-gradient(45deg,rgba(120,217,179,.08) 0 10px,transparent 10px 20px)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.metrics span{display:grid;min-height:132px;place-items:center;border-radius:28px;color:var(--muted);background:#ffffffb3;text-align:center}.metrics strong{display:block;color:var(--ink);font-size:clamp(1.8rem,4vw,2.8rem);line-height:1}.download-list{display:grid;gap:14px}.download-card{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:18px;border-radius:24px;transition:transform .2s ease,border-color .2s ease}.download-card:hover{transform:translate(6px);border-color:#2a9a7859}.download-icon{display:grid;width:58px;height:58px;place-items:center;border-radius:18px;color:var(--mint-dark);background:#e9fff5;font-size:.8rem;font-weight:900}.download-card small{display:block;margin-top:5px;color:var(--muted)}.download-card b{color:var(--mint-dark)}.about-section{display:grid;grid-template-columns:1fr .82fr;gap:24px;align-items:stretch}.about-copy,.about-card{border-radius:34px}.about-copy{padding:clamp(28px,5vw,54px);background:#fff8e8}.about-card{display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,5vw,44px)}.qr-card{display:grid;grid-template-columns:104px 1fr;gap:18px;align-items:center;margin:0;padding:14px;border:1px solid rgba(42,154,120,.14);border-radius:24px;background:radial-gradient(circle at top left,rgba(145,216,255,.22),transparent 8rem),#ffffffa8}.qr-card img{display:block;width:104px;height:104px;object-fit:cover;border:8px solid white;border-radius:20px;box-shadow:0 14px 34px #306e6724}.qr-card span{color:var(--muted);line-height:1.65}.qr-card strong{display:block;margin-bottom:4px;color:var(--ink)}.about-card a{color:var(--mint-dark);font-weight:900;word-break:break-all}.qr-section{padding-top:0}.qr-section .qr-card{grid-template-columns:132px 1fr;width:100%;min-height:172px;margin:0 auto;padding:clamp(18px,3vw,28px)}.qr-section .qr-card img{width:132px;height:132px}.site-footer{display:flex;justify-content:space-between;gap:18px;width:min(1120px,calc(100% - 32px));margin:0 auto;padding:34px 0 42px;color:var(--muted);border-top:1px solid var(--line)}.site-footer div{gap:18px}@keyframes rise-in{0%{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}@keyframes float-in{0%{opacity:0;transform:translateY(28px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes bob{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes drift{0%,to{transform:translate(0)}50%{transform:translate(12px,-16px)}}@media(max-width:900px){.site-header{border-radius:28px}.hero,.detail-panel,.about-section{grid-template-columns:1fr}.hero{min-height:auto;padding-top:64px}.purifier-card{min-height:430px}.feature-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.site-header{width:calc(100% - 20px);margin-top:10px}.brand{font-size:1rem}.hero,.section,.site-footer{width:calc(100% - 24px)}.hero{gap:34px;padding:42px 0 32px}.section{padding:36px 0}h1{width:100%;max-width:100%;font-size:clamp(2.35rem,13.2vw,3.35rem);line-height:1.12;letter-spacing:-.045em}h1 .title-long{font-size:.78em;letter-spacing:-.035em}.hero-actions{width:100%}.hero-actions a{max-width:100%;width:100%}.purifier-card{min-height:360px;border-radius:30px}.purifier{width:176px;height:246px;border-width:7px}.face{gap:42px;padding-top:48px}.vent{width:96px;margin-top:38px}.feature-grid,.metrics{grid-template-columns:1fr}.feature-card{min-height:auto}.download-card{grid-template-columns:auto 1fr}.download-card b{grid-column:2}.site-footer{flex-direction:column}.qr-card{grid-template-columns:92px 1fr;gap:14px}.qr-card img{width:92px;height:92px;border-radius:18px}.qr-section .qr-card{grid-template-columns:92px 1fr;min-height:auto;padding:14px}.qr-section .qr-card img{width:92px;height:92px}}