:root{--paper:#f5f2ec;--ink:#1b211d;--muted:#626860;--line:#d6d8cf;--green:#315d50}
a:focus-visible,summary:focus-visible{outline:3px solid #749e89;outline-offset:5px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
figure,p,h1,h2,h3{margin:0}
.shell{width:min(1120px,calc(100% - 96px));margin-inline:auto}
.section{padding-block:72px}
.eyebrow{font-size:14px;font-weight:600;letter-spacing:.12em;color:var(--muted);margin-bottom:12px}
h1{font-size:clamp(36px,4.2vw,56px);font-weight:650;line-height:1.22;letter-spacing:-.04em}
h2{font-size:clamp(28px,3vw,40px);font-weight:650;line-height:1.3;letter-spacing:-.035em;margin-bottom:32px}
h3{font-size:19px;line-height:1.45;font-weight:600}
.site-header{background:var(--paper)}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand-lockup{display:flex;align-items:center;min-width:0}
.logo{font-size:23px;font-weight:750;line-height:1.2}
.logo span{display:block;font-size:10px;letter-spacing:.2em;margin-top:5px;color:var(--muted)}
.brand-slogan{margin-left:18px;padding-left:18px;border-left:1px solid var(--line);font-size:13px;letter-spacing:.08em;white-space:nowrap;color:var(--muted)}
nav{display:flex;gap:28px;align-items:center;font-size:14px}
nav a:hover{color:var(--green)}
.navbtn,.cta{display:inline-flex;align-items:center;justify-content:center;background:var(--ink);color:#fff;border:1px solid var(--ink);padding:12px 24px;border-radius:99px;font-size:15px;font-weight:600;line-height:1.5;cursor:pointer}
.navbtn{padding:9px 20px}
.navbtn:hover,.cta:hover{background:var(--green);border-color:var(--green)}
.secondary{background:transparent;color:var(--ink)}
.secondary:hover{color:#fff}
.hero{background:linear-gradient(110deg,var(--paper) 50%,#e3e2da 50%)}
.hero-inner{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;min-height:530px;gap:48px;padding-block:40px}
.hero-copy .lead{max-width:430px;margin-top:24px;font-size:18px;line-height:1.85;color:var(--muted)}
.hero-product{display:flex;justify-content:center}
.hero-product img{width:300px;filter:drop-shadow(0 20px 20px #24332820)}
.purchase{position:relative;display:inline-block;margin-top:28px;margin-bottom:40px}
.purchase summary{list-style:none;min-width:144px}
.purchase summary::-webkit-details-marker{display:none}
.purchase-notice{position:absolute;top:calc(100% + 10px);left:0;white-space:nowrap;background:white;border:1px solid var(--line);border-radius:10px;padding:9px 20px;box-shadow:0 6px 20px #18291c12;font-size:15px;z-index:2}
.dark{background:#1c2620;color:#f4f1e9}
.dark .eyebrow,.step-number{color:#b7cfa7}
.dark h2{margin-bottom:34px}
.storygrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px}
.storygrid article{border-top:1px solid #536054;padding-top:18px}
.step-number{display:block;font-size:23px;font-weight:500;margin-bottom:16px}
.storygrid h3{margin-bottom:12px}
.storygrid p{color:#c6ccc4;font-size:16px;line-height:1.8}
.ringsection{display:grid;grid-template-columns:1.3fr 1fr;gap:80px;align-items:center}
.ring-detail{width:238px;justify-self:center}
.gesture-list{list-style:none;padding:0;margin:0}
.gesture-list li{display:grid;grid-template-columns:56px 1fr;gap:28px;border-top:1px solid var(--line);padding:15px 0}
.gesture-list span{color:var(--muted)}
.fineprint{font-size:13px;color:var(--muted);margin-top:16px}
.people{background:#e6e7df}
.section-heading{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;margin-bottom:28px}
.section-heading h2{margin:0}
.section-heading>p{max-width:370px;color:var(--muted);font-size:16px;line-height:1.8}
.scene-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene-gallery figure{min-width:0;position:relative;overflow:hidden;border-radius:14px;background:#1b211d}
.scene-gallery img{width:100%;aspect-ratio:4/5;object-fit:cover}
.scene-gallery figcaption{position:absolute;inset:auto 0 0;padding:60px 24px 22px;background:linear-gradient(transparent,#0a1518c9);color:white}
.scene-gallery figcaption p{margin-top:5px;font-size:14px;color:#f3f3ef}
.appsection{background:#f9f8f4}
.app-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:38px}
.app-gallery figure{min-width:0;text-align:center}
.screen-stage{height:480px;display:flex;justify-content:center;align-items:center}
.screen-stage img{width:auto;height:100%;max-width:100%;object-fit:contain;border-radius:20px;box-shadow:0 10px 25px #1e302219;border:1px solid #c9cdc5}
.app-gallery figcaption{margin-top:24px}
.app-gallery figcaption p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.75}
.app-links{display:flex;justify-content:center;gap:28px;font-size:14px;margin-top:30px;color:var(--green)}
.app-links a{text-decoration:underline;text-underline-offset:5px}
.spec{background:#e3e4dc}
.specgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.specgrid>div{border-top:1px solid #adb5a7;padding-top:18px}
.specgrid b{display:block;font-size:27px;line-height:1.4;font-weight:550;margin-bottom:7px}
.specgrid span{font-size:14px;color:var(--muted)}
.download-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}
.download h2{margin-bottom:12px}
.download p{color:var(--muted)}
.download-actions{display:flex;gap:12px;flex-wrap:wrap}
.download .fineprint{text-align:right}
footer{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-block:26px;font-size:13px;color:var(--muted)}
footer>div{display:flex;flex-wrap:wrap;gap:18px}
footer a:hover{text-decoration:underline}
@media(max-width:1000px){.shell{width:calc(100% - 64px)}
.hero-inner{gap:24px}
.hero-product img{width:260px}
.ringsection{gap:36px}
.section-heading{display:block}
.section-heading>p{max-width:none;margin-top:16px}
.screen-stage{height:400px}
.app-gallery{gap:20px}
.download-inner{align-items:flex-start;flex-direction:column}
.download .fineprint{text-align:left}
footer{align-items:flex-start;flex-direction:column;gap:12px}
}
@media(max-width:640px){.shell{width:calc(100% - 40px)}
.section{padding-block:44px}
.header-inner{height:68px}
.brand-slogan{margin-left:10px;padding-left:10px;font-size:11px;letter-spacing:.03em}
nav>a:not(.navbtn){display:none}
h1{font-size:34px}
h2{font-size:28px;margin-bottom:24px}
h3{font-size:18px}
.eyebrow{font-size:13px}
.hero{background:linear-gradient(155deg,var(--paper) 45%,#e3e2da 45%)}
.hero-inner{grid-template-columns:1fr;gap:12px;padding-block:32px;min-height:0}
.hero-copy .lead{font-size:16px;margin-top:18px}
.purchase{margin-top:22px;margin-bottom:30px}
.hero-product img{width:180px}
.storygrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px}
.storygrid p{font-size:15px}
.step-number{margin-bottom:10px}
.ringsection{grid-template-columns:1fr;gap:28px}
.ring-detail{width:170px}
.gesture-list li{gap:16px;font-size:15px}
.scene-gallery{grid-template-columns:1fr;gap:16px}
.scene-gallery figure{max-width:400px;width:100%;margin-inline:auto}
.app-gallery{grid-template-columns:1fr;gap:32px;margin-top:28px}
.screen-stage{height:440px}
.app-gallery figcaption{margin-top:20px}
.app-gallery figcaption p{font-size:15px}
.specgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px}
.specgrid b{font-size:24px}
.download-actions .cta{padding:12px 18px}
.app-links{gap:20px}
footer>div{gap:12px 18px}
}