:root{--ink:#16171d;--muted:#5d6170;--line:#e6e7ee;--surface:#f4f5f9;--bg:#fff;--accent:#3b6cf6;--accent-2:#7a5af8;--night:#0d0e13;--night-ink:#f2f3f7;--night-muted:#a3a7b6;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--ink:#eef0f5;--muted:#a3a7b6;--line:#272932;--surface:#17181f;--bg:#0b0c10;--accent:#6c8dff;--accent-2:#a08bff}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans GB",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:12px;z-index:9;background:var(--bg);padding:8px 12px;border-radius:8px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
h1,h2,h3{letter-spacing:-.025em;line-height:1.1;margin:0}
p{margin:0}
.nav{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--night) 82%,transparent);backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-bottom:1px solid #ffffff14}
.nav .wrap{display:flex;align-items:center;gap:20px;height:56px}
.brand{display:flex;align-items:center;gap:9px;color:var(--night-ink);text-decoration:none;font-weight:650;font-size:17px;margin-right:auto}
.brand img{width:28px;height:28px}
.nav a.link{color:var(--night-muted);text-decoration:none;font-size:14px}
.nav a.link:hover{color:var(--night-ink)}
.pill{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;white-space:nowrap}
.pill:hover{filter:brightness(1.08)}
.nav .pill{font-size:13px;padding:6px 14px}
.lang{color:var(--night-muted);font-size:13px;text-decoration:none;border:1px solid #ffffff26;border-radius:999px;padding:4px 10px}
.hero{background:radial-gradient(1000px 520px at 50% 0%,#2a3a8a55,transparent 70%),var(--night);color:var(--night-ink);text-align:center;padding:72px 0 0;overflow:hidden}
.hero .icon{width:88px;height:88px;margin:0 auto 18px;filter:drop-shadow(0 10px 24px #3b6cf655)}
.hero h1{font-size:clamp(42px,6.4vw,80px);font-weight:700}
.grad{background:linear-gradient(90deg,#7ea2ff,#b49bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .intro{max-width:640px;margin:22px auto 0;color:var(--night-muted);font-size:19px}
.hero .cta{margin-top:30px;font-size:17px;padding:13px 30px}
.hero .fine{margin-top:14px;font-size:13px;color:var(--night-muted)}
.shot{max-width:980px;margin:56px auto 0;padding:0 24px}
.shot img{border-radius:22px 22px 0 0;box-shadow:0 -10px 60px #3b6cf633,0 0 0 1px #ffffff14}
.shot figcaption{font-size:12px;color:var(--night-muted);padding:12px 0 18px}
section.block{padding:96px 0}
.eyebrow{color:var(--accent);font-weight:600;font-size:15px;margin-bottom:12px}
.block h2{font-size:clamp(32px,4.4vw,52px)}
.lead{color:var(--muted);font-size:19px;max-width:700px;margin-top:18px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:52px}
.card{background:var(--surface);border-radius:22px;padding:28px 26px}
.card svg{width:26px;height:26px;fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-bottom:16px}
.card .tag{font-size:13px;color:var(--muted);margin-bottom:6px}
.card h3{font-size:21px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15.5px}
.steps{counter-reset:s;list-style:none;padding:0;margin:52px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.steps li{counter-increment:s;border:1px solid var(--line);border-radius:22px;padding:28px 26px}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;color:var(--accent);font-weight:650;font-size:14px;margin-bottom:14px}
.steps h3{font-size:21px;margin-bottom:8px}
.steps p{color:var(--muted);font-size:15.5px}
.note{color:var(--muted);font-size:13.5px;margin-top:32px;max-width:860px}
.faq{max-width:820px;margin-top:40px}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--muted);margin-top:10px;font-size:15.5px}
.download{background:var(--night);color:var(--night-ink);text-align:center}
.download img{width:76px;height:76px;margin:0 auto 18px}
.download h2{color:var(--night-ink)}
.download .meta{color:var(--night-muted);margin-top:12px;font-size:15px}
.download .pill{margin-top:26px;font-size:17px;padding:13px 30px}
.more{padding:64px 0 40px}
.more h2{font-size:15px;font-weight:600;color:var(--muted);letter-spacing:0;margin-bottom:16px}
.apps{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.app{display:flex;align-items:center;gap:16px;padding:18px 20px;border-radius:18px;background:var(--surface);color:var(--ink);text-decoration:none}
.app img{width:48px;height:48px;flex:none;border-radius:11px}
.app strong{display:block;font-size:16px}
.app span{color:var(--muted);font-size:14px;line-height:1.45;display:block}
.app:hover{outline:1px solid var(--line)}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;padding:22px 24px;flex-wrap:wrap}
footer a{color:var(--muted);text-decoration:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
@media (max-width:820px){.grid,.steps,.apps{grid-template-columns:1fr}.nav a.link{display:none}section.block{padding:72px 0}.hero{padding-top:52px}.hero .intro{font-size:17px}.shot{padding:0 16px}.wrap{padding:0 16px}}