:root{
  --ground:#f7f5f1;--raised:#fbfaf7;--surface:#ffffff;--line:rgba(28,26,22,.10);
  --ink:#1a1916;--ink2:#5e5b55;--ink3:#716d66;--accent:#f04424;
  --mark:#fff0a8;--mark-ink:#1a1916;--mark-line:#c9a400;
    --font-display:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",Arial,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-text:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Arial,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,monospace;
  --max:1120px;--gutter:20px;
  color-scheme:light dark;
  font-family:var(--font-text);
  -webkit-text-size-adjust:100%;text-size-adjust:100%
}
[lang="zh-Hans"]{
  --font-display:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial,"Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-text:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial,"Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-family:var(--font-text)
}
[lang="zh-Hant"]{
  --font-display:-apple-system,BlinkMacSystemFont,"PingFang TC","PingFang HK","Helvetica Neue",Arial,"Noto Sans TC","Hiragino Sans CNS","Microsoft JhengHei",sans-serif;
  --font-text:-apple-system,BlinkMacSystemFont,"PingFang TC","PingFang HK","Helvetica Neue",Arial,"Noto Sans TC","Hiragino Sans CNS","Microsoft JhengHei",sans-serif;
  font-family:var(--font-text)
}
@media (prefers-color-scheme:dark){
  :root{--ground:#121110;--raised:#1a1917;--surface:#211f1c;--line:rgba(255,250,240,.09);
    --ink:#f3f0ea;--ink2:#b4afa6;--ink3:#a09b93;--accent:#ff5a3a;
    --mark:#4d4110;--mark-ink:#fff6d6;--mark-line:#a88a1c}
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--ground)}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--font-text);font-size:17px;line-height:1.65;overflow-wrap:break-word;-webkit-font-smoothing:antialiased}
body:lang(zh){line-height:1.8}
:lang(zh){line-break:strict}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--ink3)}
a:hover{text-decoration-color:currentColor}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:3px}
img,video,svg{display:block}
p{text-wrap:pretty}
.skip{position:absolute;left:var(--gutter);top:-64px;z-index:10;padding:8px 14px;background:var(--ground);color:var(--ink);border:1px solid var(--ink);border-radius:8px;text-decoration:none;font-size:15px}
.skip:focus{top:12px}
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.bar,.doc,.foot{width:100%;max-width:720px;margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;padding-top:24px;padding-bottom:8px;font-size:15px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;text-decoration:none;letter-spacing:-.01em}
.brand img{width:28px;height:28px;border-radius:7px;box-shadow:0 0 0 1px var(--line)}
.bar nav,.foot nav{display:flex;flex-wrap:wrap;gap:4px 18px}
.bar nav a,.foot nav a,.top nav a{text-decoration:none;color:var(--ink2)}
.bar nav a:hover,.foot nav a:hover,.top nav a:hover{color:var(--ink)}
.bar nav a[aria-current="page"],.top nav a[aria-current="page"]{color:var(--ink);font-weight:600}
.bar .langs{width:100%;justify-content:flex-end;font-size:14px;padding-top:10px;border-top:1px solid var(--line)}
.langs a{padding:2px 0}

.doc{padding-bottom:16px}
h1,h2,h3{font-family:var(--font-display);text-wrap:balance}
h1{font-size:34px;line-height:1.2;letter-spacing:-.02em;font-weight:700;margin:36px 0 8px}
h2{font-size:21px;line-height:1.35;letter-spacing:-.01em;font-weight:650;margin:44px 0 10px}
h3{font-size:17px;line-height:1.45;font-weight:600;margin:28px 0 6px}
:lang(zh) :is(h1,h2,h3){letter-spacing:0}
p,li,dd{color:var(--ink2)}
strong,b{color:var(--ink);font-weight:600}
ul{padding-left:22px;margin:10px 0}
li{margin:6px 0}
li::marker{color:var(--ink3)}
.meta{color:var(--ink3);font-size:15px;margin:0 0 28px}
.summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 0 10px;margin:24px 0}
.summary ul{padding-left:20px}
.facts{display:grid;grid-template-columns:max-content 1fr;gap:6px 20px;margin:16px 0;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:16px}
.facts dt{color:var(--ink3)}
.facts dd{margin:0;color:var(--ink)}
blockquote{margin:12px 0;padding:2px 0 2px 16px;border-left:2px solid var(--line);color:var(--ink2)}
blockquote p{margin:6px 0}
.source{font-size:14px;color:var(--ink3)}
.contact{font-size:19px;color:var(--ink);margin:12px 0 4px}
.placeholder{background:var(--mark);color:var(--mark-ink);border:1px dashed var(--mark-line);border-radius:4px;padding:0 4px;font-weight:600;font-size:.92em;white-space:nowrap}
@media (max-width:420px){.placeholder{white-space:normal}}
code{font-family:var(--font-mono);font-size:.9em}
.kicker{margin:0 0 6px;font-size:14px;line-height:1.4;font-weight:500;color:var(--ink3)}
.doc .kicker{margin-top:40px}
.doc .kicker + h1{margin-top:0}
.links{list-style:none;padding:0;margin:28px 0 0;font-size:16px}
.links li{margin:8px 0}
.lost h1{margin-top:56px}
.lost .lead{font-size:19px;color:var(--ink);margin:6px 0}

.letter p{font-size:19px;line-height:1.7;color:var(--ink)}
.letter:lang(zh) p{line-height:1.9}
.letter .sign{color:var(--ink2);margin-top:28px}
.note{font-size:14px;color:var(--ink3);border-top:1px solid var(--line);padding-top:14px;margin-top:40px}

.sheet{display:grid;grid-template-columns:minmax(7em,max-content) 1fr;margin:16px 0;border-top:1px solid var(--line);font-size:16px}
.sheet dt,.sheet dd{margin:0;padding:12px 0;border-bottom:1px solid var(--line)}
.sheet dt{color:var(--ink3);padding-right:20px}
.sheet dd{color:var(--ink)}
.boiler{margin:16px 0;border-top:1px solid var(--line)}
.boiler > div{padding:14px 0;border-bottom:1px solid var(--line)}
.boiler h3{margin:0 0 4px;font-size:14px;font-weight:500;color:var(--ink3)}
.boiler p{margin:0;color:var(--ink)}
.slots{list-style:none;padding:0;margin:16px 0;border-top:1px solid var(--line)}
.slots li{margin:0;padding:12px 0;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 16px;color:var(--ink)}
.slots li > .placeholder{flex:none;align-self:center}

.foot{margin-top:56px;padding-top:0;padding-bottom:40px;font-size:14px;color:var(--ink3)}
.foot > *{margin:0}
.foot .rule{border-top:1px solid var(--line);padding-top:18px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px}
.foot p{margin:0;color:var(--ink3)}
.foot nav a[aria-current="page"]{color:var(--ink)}

.wrap{width:100%;max-width:var(--max);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;padding-top:22px;padding-bottom:10px;font-size:15px}
.top nav{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:14px}

.hero{display:grid;grid-template-columns:minmax(0,1fr);gap:56px;padding-top:40px;padding-bottom:24px}
.hero h1{font-size:clamp(40px,5.4vw,68px);line-height:1.04;letter-spacing:-.035em;font-weight:700;margin:0 0 28px}
.hero h1 > span{display:block}
:lang(zh) .hero h1{font-size:clamp(30px,8.6vw,44px);line-height:1.22;letter-spacing:0;font-weight:600}
.ph{display:inline-block}
.nb{white-space:nowrap}
.lead{font-size:clamp(18px,1.8vw,22px);line-height:1.55;color:var(--ink2);max-width:28em;margin:0}
.lead:lang(zh){line-height:1.8}
.soon{display:flex;flex-wrap:wrap;align-items:center;gap:6px 0;margin:40px 0 0;font-size:15px;line-height:1.5;color:var(--ink)}
.soon .dot{flex:none;width:8px;height:8px;margin-right:10px;border-radius:50%;background:var(--accent)}
.soon .sep{color:var(--ink3);padding:0 8px}
.soon .for{color:var(--ink3)}
.stage{margin:0;display:flex;justify-content:center}
@media (min-width:900px){
  .hero{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:center;gap:48px;min-height:calc(100vh - 72px);min-height:calc(100svh - 72px);padding-top:16px;padding-bottom:48px}
  .hero .stage{justify-content:flex-end}
  :lang(zh) .hero h1{font-size:clamp(40px,4.4vw,60px)}
}

.device{position:relative;flex:none;width:var(--w);padding:var(--gap);border:1.25px solid var(--ink);background:var(--ground)}
.screen{position:relative;overflow:hidden;background:var(--surface);box-shadow:0 0 0 1px var(--line)}
.screen picture{display:block;height:100%}
.screen img,.screen video{width:100%;height:100%;object-fit:cover}
.phone{--w:min(300px,72vw);--gap:calc(var(--w) * .034);border-radius:calc((var(--w) - 2 * var(--gap)) * .1409 + var(--gap) + 1px)}
.phone .screen{aspect-ratio:1320/2868;border-radius:calc((var(--w) - 2 * var(--gap)) * .1409)}
.phone .screen.full::after{content:"";position:absolute;left:50%;top:1.4%;width:28.4%;height:3.87%;transform:translateX(-50%);border-radius:999px;background:#000}
.hero .phone{--w:min(320px,74vw)}
.phone.part{border-top:0;border-top-left-radius:0;border-top-right-radius:0;padding-top:0;-webkit-mask-image:linear-gradient(to bottom,transparent,#000 22%);mask-image:linear-gradient(to bottom,transparent,#000 22%)}
.phone.part .screen{aspect-ratio:1320/1968;border-top-left-radius:0;border-top-right-radius:0}
.watch{--w:min(220px,56vw);--gap:calc(var(--w) * .07);border-radius:calc((var(--w) - 2 * var(--gap)) * .2 + var(--gap) + 1px);background:#000}
.watch .screen{aspect-ratio:422/514;border-radius:calc((var(--w) - 2 * var(--gap)) * .2);background:#000;box-shadow:none}
.watch::after{content:"";position:absolute;right:-5px;top:22%;width:4px;height:17%;border-radius:0 2px 2px 0;background:var(--ink)}

.screen.motion{isolation:isolate}
.screen.motion .still{position:absolute;inset:0}
.screen .loop{position:absolute;inset:0;z-index:1}
@media (prefers-reduced-motion:reduce){.screen .loop{display:none}}
.duo{--pw:min(320px,74vw);position:relative;flex:none}
.hero .duo .phone{--w:var(--pw)}
.duo .watch{--w:calc(var(--pw) * .46);position:absolute;z-index:2;left:calc(var(--w) * -.34);bottom:7%;box-shadow:0 0 0 7px var(--ground)}

.sec{padding-top:clamp(88px,12vw,160px)}
.hero + .sec{padding-top:clamp(56px,7vw,96px)}
.sec .rule{border-top:1px solid var(--line);padding-top:20px}
.sec .kicker{margin:0 0 clamp(36px,6vw,72px)}
.sec h2{font-size:clamp(32px,4.6vw,56px);line-height:1.08;letter-spacing:-.03em;font-weight:700;margin:0 0 24px}
:lang(zh) .sec h2{font-size:clamp(30px,4vw,48px);line-height:1.3;letter-spacing:0;font-weight:600}
.sec .rule > h2.kicker{font-size:14px;line-height:1.4;letter-spacing:0;font-weight:500;margin-bottom:clamp(28px,4vw,48px)}
.body{font-size:clamp(17px,1.5vw,19px);line-height:1.6;color:var(--ink2);max-width:30em;margin:0}
.body:lang(zh){line-height:1.85}
.body + .body{margin-top:16px}
.aside{max-width:30em;margin:28px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:15px;color:var(--ink3)}
.split{display:grid;grid-template-columns:minmax(0,1fr);gap:56px;align-items:center}
.split .media{display:flex;justify-content:center;margin:0}
@media (min-width:860px){
  .split{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:72px}
  .split.flip .text{order:2}
}

.line{margin:0;max-width:34em;padding:28px 0 30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.line figcaption{display:flex;align-items:baseline;gap:12px;margin:0 0 10px;font-size:16px;line-height:1.4}
.line .who{color:var(--ink);font-weight:600}
.line time{color:var(--ink3);font-variant-numeric:tabular-nums}
.line p{margin:0;font-size:clamp(23px,2.8vw,34px);line-height:1.5;color:var(--ink)}
.languages .body{margin-top:0}
.languages .line{margin-top:40px}
.languages .line p{font-size:clamp(20px,2.2vw,28px)}

.list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.list li{margin:0;padding:15px 0;border-bottom:1px solid var(--line);color:var(--ink);font-size:clamp(16px,1.4vw,18px);line-height:1.55}
.list:lang(zh) li{line-height:1.8}
.more{margin:24px 0 0;font-size:16px}
.more a{color:var(--ink)}
.cloud{color:var(--ink);width:clamp(120px,14vw,168px);height:auto}
.cloud path{fill:none;stroke:currentColor;stroke-width:1.25px}
@media (max-width:859px){.yours .media{display:none}}
.yours .media{align-self:start}

.table{margin-top:clamp(36px,5vw,56px)}
.prices{width:100%;max-width:760px;border-collapse:collapse;font-size:17px;line-height:1.45;font-variant-numeric:tabular-nums}
.prices caption{caption-side:bottom;text-align:left;padding-top:14px;font-size:14px;color:var(--ink3)}
.prices th,.prices td{padding:15px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:baseline}
.prices thead th{padding-top:0;padding-bottom:10px;font-size:14px;font-weight:500;color:var(--ink3);vertical-align:bottom}
.prices tbody th{font-weight:600;color:var(--ink);white-space:nowrap}
.prices td{color:var(--ink2)}
.prices .n{text-align:right;white-space:nowrap;color:var(--ink)}
.prices thead .n{color:var(--ink3)}
.prices :is(th,td):first-child{padding-left:0}
.prices :is(th,td):last-child{padding-right:0}
.prices tbody + tbody{border-top:1px solid var(--line)}
.price-note{max-width:34em;margin:28px 0 0;color:var(--ink2);font-size:16px}

.faq{max-width:760px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{position:relative;display:block;list-style:none;cursor:pointer;padding:18px 40px 18px 0;font-size:clamp(17px,1.5vw,19px);font-weight:600;line-height:1.45;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:calc(50% - 6px);width:8px;height:8px;border-right:1.5px solid var(--ink2);border-bottom:1.5px solid var(--ink2);transform:rotate(45deg);transition:transform .24s cubic-bezier(.2,.7,.2,1)}
.faq details[open] summary::after{transform:translate(0,4px) rotate(225deg)}
.faq details p{margin:-4px 0 20px;max-width:38em;color:var(--ink2)}
@media (prefers-reduced-motion:reduce){.faq summary::after{transition:none}}

.end{margin-top:clamp(96px,12vw,160px);padding-bottom:48px;font-size:14px;line-height:1.6;color:var(--ink3)}
.end .rule{border-top:1px solid var(--line);padding-top:24px;display:grid;gap:14px}
.end p{margin:0;color:var(--ink3)}
.end .made{display:flex;align-items:center;gap:10px;color:var(--ink2)}
.end .made svg{flex:none;width:18px;height:18px;color:var(--ink)}
.end nav{display:flex;flex-wrap:wrap;gap:4px 18px}
.end nav a{color:var(--ink2);text-decoration:none}
.end nav a:hover{color:var(--ink)}
.end nav a[aria-current="page"]{color:var(--ink);font-weight:600}
.end .row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px}
.langs-foot a{color:var(--ink2);text-decoration:none}
.langs-foot a:hover{color:var(--ink)}
.langs-foot span{color:var(--ink3);padding:0 4px}

@media (max-width:640px){
  body{font-size:16px}
  h1{font-size:30px}
  .hero{padding-top:20px;gap:48px}
  .soon{margin-top:28px;font-size:14px}
  .soon .sep{display:none}
  .soon .for{flex-basis:100%;padding-left:18px}
  .facts{grid-template-columns:1fr;gap:0}
  .facts dd{margin-bottom:8px}
  .sheet{grid-template-columns:1fr}
  .sheet dt{border-bottom:0;padding-bottom:0}
  .sheet dd{padding-top:2px}
  .letter p{font-size:17px}
}
@media (max-width:520px){
  .prices{font-size:15px}
  .prices th,.prices td{padding:13px 5px}
  .prices thead th{font-size:13px}
  .prices td:nth-child(2){min-width:6.5em}
}
.table{max-width:100%;overflow-x:auto}
.yr-note{display:none}
@media (max-width:360px){
  .prices{font-size:14px}
  .prices th,.prices td{padding:11px 4px}
  .prices td:nth-child(2){min-width:0}
    .prices :is(th,td):nth-child(4){display:none}
  .yr-note{display:inline}
}
@media print{
  .bar nav,.foot nav,.top nav,.end nav,.skip{display:none}
  body{background:#fff;color:#000}
}