:root{--blue:#1559f5;--blue-dark:#103574;--ink:#14294b;--muted:#5d708d;--line:#dce7f8;--page:#f4f8ff;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--white);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
body.viewer-open{overflow:hidden}
button,a{-webkit-tap-highlight-color:transparent}
button{font:inherit;cursor:pointer}
a{color:inherit;text-decoration:none}
button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
img{display:block;max-width:100%}
svg{fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
h1,h2,h3,p,figure{margin:0}
.container{width:min(1240px,calc(100% - 96px));margin-inline:auto}
.skip-link{position:fixed;top:10px;left:16px;transform:translateY(-150%);background:var(--blue);color:white;padding:12px 20px;border-radius:10px;z-index:30}
.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(220,231,248,.8);backdrop-filter:blur(16px)}
.nav-shell{min-height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:8px;color:var(--blue);flex-shrink:0}
.brand img{width:48px;height:38px;object-fit:contain}
.brand span{font-size:25px;font-weight:800;letter-spacing:3px}
.site-nav{display:flex;gap:34px;align-items:center;font-size:14px;font-weight:600}
.site-nav a{padding-block:12px;transition:color .2s}
.site-nav a:hover,.text-link:hover,.footer-top nav a:hover{color:var(--blue)}
.site-nav .nav-cta{display:flex;align-items:center;gap:24px;padding:10px 22px;background:var(--blue);border-radius:30px;color:white}
.site-nav .nav-cta:hover{background:#1049d2}
.menu-toggle{display:none;align-items:center;justify-content:center;background:var(--page);border:1px solid var(--line);border-radius:12px;width:44px;height:44px;color:var(--ink)}
.menu-toggle svg{width:24px;height:24px}
.hero{background:linear-gradient(115deg,#fff 10%,#f4f8ff 65%,#eaf2ff);overflow:hidden}
.hero-layout{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;min-height:690px;gap:48px;padding-block:58px 76px}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:650;letter-spacing:1px;color:var(--blue);margin-bottom:22px}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #e8efff}
h1{font-size:clamp(40px,4.3vw,64px);letter-spacing:-2px;line-height:1.3;font-weight:800}
h1 span{color:var(--blue)}
.hero-description{font-size:17px;line-height:1.95;color:var(--muted);margin-top:25px}
.hero-actions{display:flex;align-items:center;gap:30px;margin-top:34px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:30px;padding:14px 25px;border-radius:30px;font-size:15px;font-weight:650;min-height:52px;transition:background .2s,transform .2s}
.button-primary{background:var(--blue);color:white;box-shadow:0 10px 24px #1559f51a}
.button-primary:hover{background:#1049d2;transform:translateY(-2px)}
.text-link{display:inline-flex;align-items:center;gap:18px;min-height:44px;font-size:14px;font-weight:650}
.availability{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:12px;margin-top:25px}
.availability svg{width:17px;height:17px}
.hero-visual{position:relative;min-width:0;height:545px}
.hero-orbit{position:absolute;inset:55px -30px 10px -20px;background:radial-gradient(ellipse,#d9e7ff 0%,#e9f1ff 58%,transparent 70%);border-radius:50%}
.hero-poster{position:absolute;width:49%;height:auto;aspect-ratio:9/16;object-fit:contain;border-radius:16px;box-shadow:0 24px 55px #173d7c20}
.hero-poster-back{right:0;top:48px;transform:rotate(7deg)}
.hero-poster-front{left:2%;top:3px;transform:rotate(-5deg)}
.hero-footnote{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-block:20px;font-size:12px;color:var(--muted)}
.hero-footnote a{display:flex;gap:20px}
.section{padding-block:104px}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
h2{font-size:38px;line-height:1.4;letter-spacing:-.8px;font-weight:750}
.section-description{font-size:14px;color:var(--muted);line-height:1.95;padding-bottom:5px}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.feature-card{border:1px solid var(--line);background:var(--white);border-radius:20px;padding:30px;position:relative}
.feature-number{font-size:11px;letter-spacing:1px;color:var(--muted)}
.feature-symbol{display:block;width:46px;height:46px;color:var(--blue);margin-block:28px 22px}
.feature-card h3{font-size:21px;font-weight:700;margin-bottom:12px;letter-spacing:-.4px}
.feature-card p{font-size:14px;line-height:1.9;color:var(--muted);max-width:290px}
.showcase{background:var(--page)}
.gallery{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px}
.product-card{min-width:0}
.poster-button{display:block;width:100%;padding:0;border:0;border-radius:14px;background:#e6f0ff;box-shadow:0 8px 24px #1c46780b;transition:transform .22s,box-shadow .22s}
.poster-button:hover{transform:translateY(-5px);box-shadow:0 14px 30px #1c467818}
.poster-button img{width:100%;height:auto;aspect-ratio:9/16;object-fit:contain;border-radius:14px}
.product-card figcaption{margin-top:20px;position:relative;padding-left:28px}
.product-card figcaption>span{position:absolute;left:0;top:4px;font-size:11px;color:var(--blue)}
.product-card h3{font-size:16px;margin-bottom:5px;font-weight:700}
.product-card figcaption p{font-size:11px;color:var(--muted)}
.gallery-hint{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px;margin-top:32px}
.example-note{margin-left:auto;color:var(--muted)}
.download-section{padding-block:80px}
.download-panel{border-radius:28px;padding:60px 72px;background:var(--blue);color:white;display:grid;grid-template-columns:1fr auto;align-items:center;gap:40px;position:relative;overflow:hidden}
.download-panel .eyebrow{color:#d9e5ff}
.download-panel h2{font-size:40px}
.download-panel p:not(.eyebrow){color:#e4ecff;margin-top:22px;font-size:14px;line-height:1.9}
.download-status{border:1px solid #ffffff45;background:#ffffff0c;min-width:250px;display:flex;align-items:center;flex-direction:column;padding:32px;border-radius:20px;text-align:center}
.download-status svg{width:48px;height:48px;margin-bottom:17px}
.download-status strong{font-size:18px;letter-spacing:1px}
.download-status>span{font-size:12px;padding:3px 14px;border-radius:20px;background:#fff;color:var(--blue);margin-top:12px}
.download-status small{font-size:11px;color:#e4ecff;margin-top:18px}
.about{padding-top:24px}
.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}
.about-description{font-size:15px;line-height:1.95;color:var(--muted);margin-block:24px;max-width:460px}
.contact-card{border:1px solid var(--line);border-radius:20px;padding:32px;background:var(--page);scroll-margin-top:100px}
.contact-card h3{font-size:19px;margin-bottom:10px}
.contact-card>p{font-size:13px;color:var(--muted);line-height:1.9}
dl{margin:24px 0 0;font-size:12px}
dt{color:var(--muted);margin-top:16px}
dd{margin:3px 0 0;overflow-wrap:anywhere;line-height:1.9}
dd a{color:var(--blue)}
.site-footer{border-top:1px solid var(--line);padding-block:34px 24px;background:#fbfcff}
.footer-top{display:flex;align-items:center;flex-wrap:wrap;gap:20px 30px}
.footer-top .brand span{font-size:21px}
.footer-top .brand img{width:40px;height:32px}
.footer-top>p{font-size:12px;color:var(--muted)}
.footer-top nav{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:12px;margin-left:auto}
.footer-top nav a{padding-block:8px}
.footer-bottom{display:flex;justify-content:space-between;gap:10px 24px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}
.image-viewer{border:0;padding:0;border-radius:18px;width:min(950px,calc(100% - 32px));height:calc(100dvh - 32px);max-height:1100px;max-width:calc(100% - 32px);color:var(--ink);background:#f4f8ff;overflow:hidden}
.image-viewer[open]{display:flex;flex-direction:column}
.image-viewer::backdrop{background:rgba(10,25,54,.8);backdrop-filter:blur(7px)}
.viewer-toolbar,.viewer-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;background:var(--white);flex-shrink:0}
.viewer-toolbar h2{font-size:16px;letter-spacing:0}
.viewer-toolbar button,.viewer-controls button{border:1px solid var(--line);background:white;border-radius:24px;min-height:44px;padding:8px 17px;font-size:13px;color:var(--ink)}
.viewer-close span{font-size:20px;margin-left:10px}
.viewer-body{min-height:0;flex:1;display:flex;align-items:center;justify-content:center;overflow:auto;padding:12px}
.viewer-image{width:auto;height:100%;max-height:100%;max-width:100%;object-fit:contain;border-radius:7px}
.viewer-count{font-size:12px;color:var(--muted)}
@media(min-width:1550px){.hero-layout{min-height:760px}.hero-visual{height:590px}.hero-poster{width:50%}}
@media(max-width:1100px){.container{width:calc(100% - 64px)}.hero-layout{gap:28px;min-height:640px}.hero-visual{height:480px}.hero-poster{width:51%}.hero-poster-back{top:65px}.hero-poster-front{top:25px}.section{padding-block:80px}.feature-card{padding:25px}.feature-card h3{font-size:19px}.gallery{gap:14px}.product-card figcaption{padding-left:0}.product-card figcaption>span{display:none}.product-card figcaption p{font-size:10px}.download-panel{padding:48px}.about-layout{gap:54px}.about{padding-top:15px}}
@media(max-width:800px){.container{width:calc(100% - 40px)}.nav-shell{min-height:68px;position:relative;flex-wrap:wrap;gap:0}.brand span{font-size:23px}.brand img{width:44px;height:34px}.menu-toggle{display:flex}.site-nav{width:100%;gap:6px;flex-direction:column;align-items:stretch;padding:0 0 16px}.js .site-nav{display:none}.js .site-nav.is-open{display:flex}.site-nav>a{padding:12px 16px;border-radius:10px}.site-nav .nav-cta{justify-content:space-between}.hero-layout{grid-template-columns:1fr;gap:34px;padding-block:48px 28px;min-height:0}.hero-copy{max-width:600px}.hero-visual{width:min(520px,92%);height:560px;margin-inline:auto}.hero-poster{width:48%}.hero-poster-front{top:0}.hero-poster-back{top:45px}.hero-orbit{inset:35px -40px 30px}.hero-description{font-size:16px}.hero-footnote{font-size:11px}.section-heading{gap:20px;align-items:flex-start;flex-direction:column;margin-bottom:32px}h1{font-size:clamp(36px,7.5vw,54px);letter-spacing:-1.2px}h2{font-size:32px}.section-description{font-size:13px}.feature-grid{gap:14px;grid-template-columns:1fr}.feature-card{padding:24px 24px 24px 94px;min-height:165px}.feature-symbol{position:absolute;left:25px;top:55px;margin:0;width:42px;height:42px}.feature-number{font-size:10px}.feature-card h3{margin-top:8px;font-size:19px}.feature-card p{max-width:none;font-size:13px}.gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:18px;padding:8px 20px 18px;margin-inline:-20px;scroll-padding-inline:20px;scrollbar-width:thin;scrollbar-color:#a6bff4 transparent}.product-card{flex:0 0 230px;scroll-snap-align:start}.product-card figcaption{margin-top:16px}.product-card figcaption p{font-size:12px}.gallery-hint{margin-top:16px;flex-wrap:wrap;gap:5px 9px}.example-note{margin-left:0;width:100%;font-size:10px}.download-section{padding-block:54px}.download-panel{width:calc(100% - 40px);padding:36px;grid-template-columns:1fr;gap:32px}.download-panel h2{font-size:34px}.download-status{min-width:0;align-items:flex-start;text-align:left;padding:26px;position:relative}.download-status svg{position:absolute;right:25px;top:27px;width:38px;height:38px;margin:0}.download-status small{margin-top:12px}.about{padding-top:8px}.about-layout{grid-template-columns:1fr;gap:32px}.about-description{font-size:14px;max-width:none}.contact-card{padding:26px}.footer-top{align-items:flex-start;gap:10px 20px}.footer-top>p{width:100%;order:1}.footer-top nav{order:2;margin-left:0;width:100%;margin-top:12px}.footer-bottom{flex-direction:column;margin-top:20px}}
@media(max-width:480px){html{scroll-padding-top:84px}.section{padding-block:58px}.hero-layout{padding-top:38px;gap:28px}.eyebrow{font-size:11px;letter-spacing:.4px;margin-bottom:19px}h1{font-size:clamp(32px,8.7vw,42px);line-height:1.35}.hero-description{font-size:14px;margin-top:20px}.hero-actions{gap:23px;margin-top:27px}.button{padding:13px 22px;font-size:14px;gap:25px}.availability{font-size:10px;margin-top:21px}.hero-visual{height:calc((100vw - 56px)*.92);width:100%}.hero-poster{width:47%;border-radius:10px}.hero-poster-front{left:3%;top:0}.hero-poster-back{right:1%;top:24px}.hero-orbit{inset:25px -15px 5px}.hero-footnote{padding-block:17px;font-size:10px}.hero-footnote a{gap:8px}h2{font-size:28px}.section-heading{gap:17px;margin-bottom:25px}.product-card{flex-basis:76%;max-width:290px}.feature-card{padding-left:84px}.feature-symbol{left:22px;width:37px;height:37px}.feature-card h3{font-size:18px}.gallery-hint{font-size:11px}.download-panel{padding:30px 25px;border-radius:22px}.download-panel h2{font-size:30px}.download-panel p:not(.eyebrow){font-size:12px}.download-status{padding:22px}.download-status strong{font-size:16px}.about{padding-top:0}.contact-card{padding:23px}.image-viewer{width:calc(100% - 16px);max-width:calc(100% - 16px);height:calc(100dvh - 16px);border-radius:12px}.viewer-toolbar,.viewer-controls{padding:10px 12px;gap:8px}.viewer-body{padding:6px}.viewer-toolbar button,.viewer-controls button{padding-inline:13px;font-size:12px}.viewer-toolbar h2{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}