:root{--ink:#172b3b;--muted:#61717c;--blue:#0869e8;--ice:#eef6fc;--line:#dce5ec;--white:#fff;--mint:#21a982}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:#fbfdff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
button,a,summary{-webkit-tap-highlight-color:transparent}
a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
.wrap{max-width:1180px;margin:auto;padding-left:36px;padding-right:36px}
header{height:110px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;font-weight:750;font-size:17px;color:var(--ink)}
.brand:hover,.primary:hover{text-decoration:none}
.brand small{display:block;font-size:9px;letter-spacing:1.7px;font-weight:600;color:var(--muted)}
.logo{display:grid;place-items:center;position:relative;background:var(--blue);color:white;width:44px;height:44px;border-radius:14px;font-size:19px;letter-spacing:-1px}
.logo span{position:absolute;right:-3px;bottom:-3px;border:3px solid white;background:var(--mint);border-radius:50%;width:13px;height:13px}
nav{display:flex;align-items:center;gap:30px;font-size:14px}
.nav-download{color:var(--blue)}
.hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding-top:65px;padding-bottom:80px}
.eyebrow{font-size:12px;font-weight:650;letter-spacing:1px;color:var(--muted);display:inline-flex;gap:8px;align-items:center}
.eyebrow i{width:7px;height:7px;background:var(--mint);border-radius:50%}
h1{font-size:clamp(42px,4.7vw,62px);line-height:1.22;letter-spacing:-2px;margin:24px 0;font-weight:800}
h1 span{color:var(--blue);display:block}
.intro{color:var(--muted);font-size:17px;line-height:1.9;margin-bottom:30px}
.primary{display:flex;justify-content:space-between;align-items:center;gap:32px;width:fit-content;padding:14px 23px;background:var(--blue);color:white;border-radius:12px;font-weight:650;font-size:15px;transition:background .15s,transform .15s}
.primary:hover{background:#005acb;transform:translateY(-2px)}
.primary span{font-size:23px;line-height:1}
.hero-note{font-size:12px;color:var(--muted);margin-top:13px}
.scene{position:relative;height:430px;background:var(--ice);border-radius:48% 48% 30px 30px;isolation:isolate}
.promo-scene{height:auto;aspect-ratio:3/2;border-radius:28px;overflow:hidden;background:#effaff;box-shadow:0 18px 42px rgb(8 105 232/.1)}
.promo-scene img{display:block;width:100%;height:100%;object-fit:cover}
.scene-grid{position:absolute;inset:35px 10px 0;background-image:radial-gradient(#c7dce9 1px,transparent 1px);background-size:20px 20px;z-index:-1;border-radius:50%}
.scene-label{position:absolute;top:19px;left:0;right:0;text-align:center;font-size:12px;color:var(--muted);letter-spacing:2px}
.monitor{position:absolute;top:85px;left:72px;right:5px;background:white;border:7px solid var(--ink);border-radius:18px;box-shadow:0 25px 50px #36566d17;overflow:hidden}
.monitor-top{height:26px;display:flex;gap:4px;align-items:center;padding:0 10px;background:#f5f8fb}
.monitor-top>span{width:4px;height:4px;background:#bac9d3;border-radius:50%}
.monitor-top b{font-size:8px;margin-left:auto;color:var(--muted);font-weight:500}
.monitor svg{display:block;width:100%;height:224px}
.skeleton{stroke:var(--blue);stroke-width:10;stroke-linecap:round;stroke-linejoin:round;fill:none}
.head{fill:#cfe4ff;stroke:var(--blue);stroke-width:5}
.joints{fill:white;stroke:var(--blue);stroke-width:3}
.floor{stroke:var(--line);stroke-width:1}
.corner{fill:none;stroke:#c1d2de;stroke-width:2}
.monitor-foot{display:flex;gap:18px;font-size:9px;color:var(--mint);padding:5px 15px;border-top:1px solid var(--line)}
.stand{position:absolute;left:49%;bottom:36px;width:100px;height:24px;background:#afc2ce;clip-path:polygon(35% 0,65% 0,70% 80%,100% 85%,100% 100%,0 100%,0 85%,30% 80%)}
.phone{position:absolute;left:9px;top:198px;width:106px;height:195px;border:5px solid var(--ink);border-radius:21px;background:#fafffd;transform:rotate(-9deg);box-shadow:0 15px 35px #172b3b24;overflow:hidden}
.island{position:absolute;left:28px;top:5px;width:40px;height:9px;border-radius:10px;background:var(--ink)}
.phone svg{width:100%;height:160px;fill:#d7f3e9;stroke:var(--mint);stroke-width:5;stroke-linecap:round;stroke-linejoin:round}
.phone svg path{fill:none}
.phone>span{display:block;text-align:center;font-size:8px;color:var(--muted)}
.connection{position:absolute;bottom:6px;left:125px;right:0;text-align:center;font-size:10px;color:var(--muted)}
.connection span{color:var(--blue);margin:0 12px;letter-spacing:3px}
.features{display:grid;grid-template-columns:repeat(3,1fr);padding-top:23px;padding-bottom:23px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:20px}
.features p{margin:0;font-size:16px}
.features span{display:block;color:var(--muted);font-size:11px;letter-spacing:1px;margin-bottom:3px}
h2{font-size:32px;line-height:1.45;letter-spacing:-.8px;margin:15px 0 20px}
section p{color:var(--muted)}
.download-section{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center;padding-top:85px;padding-bottom:85px}
.download-card{padding:30px;background:white;border:1px solid var(--line);border-radius:22px;box-shadow:0 12px 40px #172b3b05}
.release-top{display:flex;gap:14px;align-items:center;font-weight:650}
.windows-icon{font-size:42px;color:var(--blue);line-height:1}
.release-top small{display:block;font-size:11px;color:var(--muted);font-weight:400}
.badge{margin-left:auto;background:var(--ice);color:var(--blue);font-size:10px;padding:2px 8px;border-radius:5px}
.download-card .primary{margin-top:25px;width:100%}
.primary.disabled{background:#e9eff4;color:#667884;cursor:default;transform:none}
.status{font-size:12px;margin:10px 0 18px}
.requirement{border-top:1px solid var(--line);padding-top:16px;font-size:12px;margin-bottom:0}
.download-card details{font-size:11px;margin-top:14px}
code{word-break:break-all;display:block;margin-top:10px}
.steps-section{padding-top:25px;padding-bottom:75px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:35px}
.step-number{font:500 24px Georgia,serif;color:var(--blue);display:grid;place-items:center;background:var(--ice);width:43px;height:43px;border-radius:50%}
h3{font-size:18px;margin-bottom:8px}
.steps p{font-size:14px;margin-top:0}
.faq-section{display:grid;grid-template-columns:1fr 1.7fr;gap:70px;border-top:1px solid var(--line);padding-top:60px;padding-bottom:75px}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq details:first-child{padding-top:0}
summary{cursor:pointer;font-size:15px}
.faq p{font-size:14px;padding-right:20px}
.faq summary::marker{color:var(--blue)}
footer{border-top:1px solid var(--line);min-height:100px;display:flex;gap:24px;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted)}
footer .brand{font-size:12px;color:var(--ink)}
@media(max-width:800px){header{height:85px}
nav{gap:15px}
nav a:not(.nav-download){display:none}
.hero{gap:20px;padding-top:35px;padding-bottom:45px}
.scene{height:340px}
.monitor{left:38px;top:75px}
.monitor svg{height:170px}
.phone{width:82px;height:156px;top:160px;left:-5px}
.phone svg{height:127px}
.island{left:20px;width:30px}
.phone>span{font-size:6px}
.stand{bottom:34px}
.connection{left:50px}
.download-section{gap:25px}
.download-card{padding:22px}
.steps{gap:25px}
.faq-section{gap:30px}
h2{font-size:27px}
}
@media(max-width:580px){.wrap{padding-left:22px;padding-right:22px}
.brand{font-size:14px}
.brand small{font-size:7px}
.logo{width:36px;height:36px;border-radius:11px;font-size:16px}
nav{font-size:12px}
.hero{grid-template-columns:1fr;gap:28px}
h1{font-size:46px}
.intro{font-size:15px}
.scene{max-width:390px;width:100%;margin:auto;height:340px}
.monitor{left:70px;right:10px}
.phone{left:30px}
.features{gap:12px}
.features p{font-size:12px}
.features span{font-size:9px;letter-spacing:0}
.download-section{grid-template-columns:1fr;padding-top:55px;padding-bottom:55px;gap:15px}
.download-section p br{display:none}
.steps-section{padding-bottom:45px}
.steps{grid-template-columns:1fr;gap:18px}
.steps article{position:relative;padding-left:60px}
.step-number{position:absolute;left:0;top:12px}
.faq-section{grid-template-columns:1fr;padding-top:40px;gap:10px;padding-bottom:45px}
footer{flex-wrap:wrap;padding-top:25px;padding-bottom:25px;gap:12px}
footer>span{width:100%;order:3}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
.primary{transition:none}
}
.footer-links{display:flex;align-items:center;gap:22px}
.footer-links a:hover,.return-home:hover,.policy-email:hover{color:var(--blue)}
.policy-page{background:#f7fbff}
.policy-header{height:104px}
.return-home{color:var(--blue);font-size:14px;font-weight:650}
.return-home span{margin-left:7px;color:var(--blue)}
.policy-wrap{max-width:790px;margin:0 auto;padding:76px 36px 96px}
.policy-content{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:64px 72px;box-shadow:0 18px 48px rgb(23 43 59 / .06)}
.policy-title{padding-bottom:42px;border-bottom:1px solid var(--line);margin-bottom:52px}
.policy-kicker{margin:0 0 12px;color:var(--blue);font-size:14px;font-weight:700;letter-spacing:.05em}
.policy-title h1{margin:0;color:var(--ink);font-size:42px;letter-spacing:-.04em;line-height:1.18}
.policy-meta{margin:16px 0 0;color:var(--muted);font-size:13px}
.policy-meta span{padding:0 7px;color:#a4b2bd}
.policy-content section{margin:0 0 44px}
.policy-content section:last-child{margin-bottom:0}
.policy-content h2{margin:0 0 18px;font-size:22px;letter-spacing:-.02em;line-height:1.35}
.policy-content p,.policy-content li{font-size:15px;color:#3d5363}
.policy-content p{margin:0 0 16px}
.policy-content strong{color:var(--ink)}
.policy-content ul{margin:0;padding-left:1.3em}
.policy-content li{padding-left:.2em;margin:10px 0}
.policy-table-scroll{margin:24px 0;overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--white)}
.policy-table{width:100%;min-width:620px;border-collapse:collapse;text-align:left;font-size:13px}
.policy-table th,.policy-table td{padding:15px 16px;vertical-align:top;border-bottom:1px solid var(--line);line-height:1.65}
.policy-table thead th{color:var(--ink);background:#eef6fc;font-size:12px;letter-spacing:.02em}
.policy-table tbody th{width:18%;color:var(--ink);font-weight:700}
.policy-table td{color:#4d6373}
.policy-table tbody tr:last-child>*{border-bottom:0}
.policy-table tbody tr:nth-child(even){background:#fbfdff}
.policy-email{color:var(--blue);font-weight:650;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.policy-footer{min-height:78px;border-top:1px solid var(--line)}
.policy-footer a{font-weight:650;color:var(--blue)}
@media(max-width:800px){.policy-wrap{padding-top:40px;padding-bottom:52px}
.policy-content{padding:42px 38px}
.policy-title{margin-bottom:40px;padding-bottom:34px}
}
@media(max-width:580px){.footer-links{width:100%;justify-content:space-between;order:2}
.policy-header{height:80px}
.policy-wrap{padding:22px 16px 50px}
.policy-content{padding:34px 23px;border-radius:14px}
.policy-title h1{font-size:34px}
.policy-content h2{font-size:21px}
.policy-content p,.policy-content li{font-size:15px}
.policy-table-scroll{margin-left:0;margin-right:0}
.policy-footer{min-height:88px}
.policy-footer>span{width:auto;order:0}
}
.promo-scene{height:auto}