:root{color-scheme:dark;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;font-synthesis:none;font-size:16px;--background:#06090e;--ink:#f0f5fa;--muted:#a9b6c6;--blue:#add0eb;--pink:#efbfd3;--line:#c0d7ee24;color:var(--ink);background:var(--background)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;min-height:100svh;background:radial-gradient(ellipse at 5% 40%,#0b1b304a,transparent 60%),var(--background)}a{color:inherit;text-decoration:none;text-underline-offset:5px}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid var(--pink);outline-offset:6px}a:hover{color:var(--blue)}[hidden]{display:none!important}::selection{background:#80aed7;color:#071a30}
.skip-link{position:fixed;top:-100px;left:24px;z-index:20;background:var(--ink);color:var(--background);padding:12px 20px;border-radius:6px}.skip-link:focus{top:18px}
.site-header{width:min(1440px,100%);margin:auto;padding:38px 50px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center}.brand img{display:block;width:126px;height:auto}.site-header nav{display:flex;align-items:center;gap:32px;font-size:13px}.download-link{border:1px solid #cbdced65;border-radius:999px;display:flex;align-items:center;justify-content:center;gap:22px;min-height:43px;padding:10px 22px;transition:background .2s,border-color .2s}.download-link:hover{border-color:var(--blue);background:#add0eb0d}.download-link span{font-size:17px;line-height:1}
.account-layout{width:min(1280px,calc(100% - 100px));margin:10px auto 0;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(340px,.8fr);column-gap:clamp(48px,7vw,104px);align-items:center}.brand-scene{height:650px;position:relative;isolation:isolate;min-width:0}.scene-grid{position:absolute;inset:-15px -20px 80px -25px;background-image:linear-gradient(#afd2ef0e 1px,transparent 1px),linear-gradient(90deg,#afd2ef0e 1px,transparent 1px);background-size:44px 44px;transform:perspective(950px) rotateY(12deg) rotateX(5deg);mask-image:radial-gradient(ellipse at 55% 50%,#000 16%,#000a 53%,transparent 76%);z-index:-2}.scene-word{position:absolute;top:157px;left:-12px;font:700 clamp(74px,8.9vw,138px)/1 system-ui,sans-serif;letter-spacing:-.07em;color:#dce9f411;white-space:nowrap;z-index:-1}.scene-mark{position:absolute;top:52px;left:0;width:104%;height:auto;max-height:430px;object-fit:contain;transform:perspective(1100px) rotateY(-12deg) rotateZ(-9deg);filter:drop-shadow(1px 2px 0 #9eb3d8) drop-shadow(3px 5px 0 #516f99) drop-shadow(7px 9px 0 #283c5d) drop-shadow(0 16px 34px #0009)}.scene-caption{position:absolute;left:6px;bottom:71px}.scene-caption p{font-size:29px;line-height:1.65;letter-spacing:.045em;font-weight:400;margin:0 0 14px}.scene-caption span{color:var(--muted);font-size:13px;line-height:1.8}
.account-content{padding:42px 0;min-width:0;max-width:452px;justify-self:stretch}.intro{margin-bottom:34px}.section-kicker{display:block;margin-bottom:18px;font-size:12px;color:var(--blue)}h1{font-size:44px;font-weight:500;line-height:1.35;letter-spacing:-.035em;margin:0 0 16px}p{font-size:14px;line-height:1.9;overflow-wrap:anywhere;margin:0 0 18px}.intro p{color:var(--muted);margin:0}.auth-panel{border:0;background:none;padding:0}h2{font-size:17px;font-weight:500;line-height:1.5;margin:0 0 12px}.account-status{font-size:13px;line-height:1.85;color:#c4cedb;margin-bottom:18px}
.primary,.secondary,button{display:flex;align-items:center;justify-content:center;min-height:50px;padding:13px 24px;border:1px solid #b2c7df4f;border-radius:999px;font:inherit;font-size:14px;line-height:1.5;cursor:pointer;text-align:center;transition:background .2s,color .2s,border-color .2s}.primary{background:#d6e9f7;color:#102338;border-color:#d6e9f7;width:100%;font-weight:500}.primary:hover{background:#eef7ff;color:#071a30;border-color:#eef7ff}.secondary,button{background:transparent;color:#e5edf7}.secondary{width:100%}.secondary:hover,button:hover{border-color:var(--blue);background:#add0eb0b;color:var(--blue)}.note{margin:12px 0 0;font-size:12px;color:#a7b4c6}.legacy{margin-top:29px;padding-top:26px;border-top:1px solid var(--line)}.legacy p{font-size:13px;color:var(--muted);margin-bottom:20px}.legacy h2{font-size:16px;margin-bottom:8px}[aria-disabled=true],button:disabled{pointer-events:none;cursor:default;background:#a6bed215;color:#a1afc0;border-color:#a6bed230}.support{font-size:12px;color:var(--muted);margin:25px 0 0;display:flex;gap:10px;align-items:center}.support a{text-decoration:underline;color:#d8e6f4}.session-panel>p{color:var(--muted);font-size:13px;margin-bottom:12px}.session-panel>h2:first-child{font-size:24px}.account-actions{margin:24px 0 30px}.account-actions button{width:100%}.device{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}.device span{min-width:0;overflow-wrap:anywhere;font-size:14px}.device button{flex-shrink:0;min-height:38px;font-size:12px;padding:8px 16px}
.client-download{grid-column:1/-1;display:flex;align-items:center;gap:24px;padding:29px 0 31px;border-block:1px solid var(--line);scroll-margin-top:30px}.client-symbol{width:62px;height:62px;border:1px solid #a4c2df35;border-radius:16px;display:grid;place-items:center;flex-shrink:0;background:#a4c2df08}.client-symbol svg{width:31px;height:31px;stroke:var(--blue);stroke-width:1.4}.download-copy{flex:1;min-width:0}.download-copy h2{font-size:20px;margin-bottom:8px}.download-copy p{font-size:13px;margin:0 0 8px;color:var(--muted)}.platform{font-size:11px;color:#c1ccda}.download-action{flex-shrink:0;text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:10px}.availability-note{color:var(--muted);font-size:12px}.download-request{display:inline-flex;align-items:center;gap:34px;min-height:40px;font-size:13px;padding:5px 0;border-bottom:1px solid #b8cce267}.download-request span{font-size:18px;color:var(--blue)}
.site-footer{width:min(1280px,calc(100% - 100px));margin:0 auto;padding:29px 0 32px;display:flex;justify-content:space-between;gap:24px;color:#9aa9bc;font-size:11px;line-height:1.8}.site-footer div{display:flex;flex-wrap:wrap;gap:27px}
@media(min-width:1051px){.scene-mark{top:62px;left:3%;width:94%;max-height:382px}}
@media(min-width:1600px){.account-layout{margin-top:35px}.brand-scene{height:710px}.scene-mark{top:74px}.scene-caption{bottom:90px}}
@media(max-width:1050px){.site-header{padding:30px 34px}.account-layout{width:calc(100% - 68px);grid-template-columns:minmax(0,1fr) minmax(310px,1fr);gap:42px}.brand-scene{height:620px}.scene-mark{top:105px;width:110%}.scene-word{top:190px}.scene-caption{bottom:67px}.scene-caption p{font-size:25px}.account-content{padding-block:30px}h1{font-size:38px}.site-footer{width:calc(100% - 68px)}.client-download{margin-top:8px}}
@media(max-width:740px){.site-header{padding:25px 24px}.brand img{width:107px}.site-header nav{gap:19px;font-size:12px}.download-link{min-height:39px;padding:8px 15px;gap:13px}.account-layout{width:calc(100% - 48px);display:flex;flex-direction:column;gap:0;margin-top:12px}.brand-scene{height:210px;width:100%;max-width:430px;flex:none}.scene-grid{inset:-10px -18px -20px;background-size:32px 32px;mask-image:radial-gradient(ellipse,#000 0%,transparent 74%)}.scene-mark{top:0;width:240px;height:174px;left:calc(50% - 120px);transform:perspective(1100px) rotateY(-12deg) rotateZ(-8deg);filter:drop-shadow(2px 3px 0 #648ab3) drop-shadow(3px 5px 0 #324d74) drop-shadow(0 10px 28px #0009)}.scene-word{font-size:76px;top:69px;left:50%;transform:translateX(-50%)}.scene-caption{display:none}.account-content{width:100%;max-width:430px;padding:0 0 34px}.intro{margin-bottom:27px}.section-kicker{font-size:11px;margin-bottom:13px}h1{font-size:34px;margin-bottom:13px}.intro p{font-size:13px}.legacy{margin-top:25px;padding-top:23px}.primary,.secondary{min-height:49px}.support{margin-top:22px}.client-download{width:100%;max-width:430px;display:grid;grid-template-columns:44px minmax(0,1fr);column-gap:16px;row-gap:15px;padding:25px 0}.client-symbol{width:44px;height:44px;border-radius:12px;align-self:start}.client-symbol svg{width:25px;height:25px}.download-copy h2{font-size:17px;margin-bottom:6px}.download-copy p{font-size:12px;line-height:1.8}.platform{font-size:10px}.download-action{grid-column:2;text-align:left;align-items:flex-start;gap:5px}.availability-note{font-size:11px}.download-request{min-height:37px;gap:29px}.site-footer{width:calc(100% - 48px);max-width:430px;padding:25px 0;flex-wrap:wrap;gap:14px;font-size:10px}.site-footer div{gap:21px}}
@media(max-width:370px){.home-link{display:none}.site-header nav{gap:0}.account-layout,.site-footer{width:calc(100% - 40px)}.site-header{padding-inline:20px}.device{align-items:flex-start;flex-direction:column}.device button{align-self:flex-end}}
.download-request{min-height:46px;padding:10px 20px;gap:18px;border:1px solid #d6e9f7;border-radius:999px;background:#d6e9f7;color:#102338;font-weight:500}.download-request span{color:inherit}.download-request:hover{background:#eef7ff;color:#071a30}.download-checksum{font-size:11px;color:var(--muted);text-decoration:underline;text-underline-offset:4px}.beta-label{display:inline-block;padding:2px 7px;margin-right:7px;border:1px solid #efbfd34d;border-radius:5px;color:var(--pink);font-size:10px;background:#efbfd30b}.download-details{margin-top:12px;font-size:12px;color:var(--muted)}.download-details summary{cursor:pointer;width:fit-content;min-height:26px;line-height:26px}.download-details summary:focus-visible{outline:2px solid var(--pink);outline-offset:4px}.download-details p{max-width:560px;margin:8px 0 0;font-size:12px}.download-details a{color:var(--blue);text-decoration:underline}.download-action{gap:11px}@media(max-width:740px){.download-request{min-height:44px;padding:10px 17px;gap:18px}.download-action{gap:10px}.download-details p{font-size:11px}.availability-note{line-height:1.8}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
@media(max-width:740px){.site-header .home-link{display:none}.site-header nav{gap:16px}.site-header .guide-link{white-space:nowrap}}