:root{--bg:#fff;--fg:#1d1d1f;--muted:#6e6e73;--soft:#f5f5f7;--line:#e8e8ed;--blue:#0071e3;--r:20px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue",Helvetica,Arial,sans-serif;background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:var(--blue);text-decoration:none}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
nav{position:sticky;top:0;z-index:10;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);background:rgba(255,255,255,.72);border-bottom:1px solid rgba(0,0,0,.06)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:52px}
nav .brand{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--fg);font-size:15px}
nav .brand img{width:26px;height:26px;border-radius:7px}
nav ul{display:flex;gap:26px;list-style:none;font-size:13px}
nav ul a{color:var(--fg);opacity:.85}
nav ul a:hover{opacity:1;color:var(--blue)}
.hero{padding:96px 0 72px;text-align:center}
.hero .icon{width:112px;height:112px;border-radius:26px;box-shadow:0 20px 50px rgba(0,113,227,.25);margin:0 auto 28px;display:block}
h1{font-size:clamp(44px,8vw,84px);line-height:1.02;letter-spacing:-.03em;font-weight:700}
.shimmer{background:linear-gradient(100deg,#0071e3 0%,#bf5af2 25%,#ff375f 50%,#ff9f0a 75%,#0071e3 100%);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:flow 9s linear infinite}
@keyframes flow{to{background-position:300% 0}}
.hero p.lead{font-size:clamp(19px,2.4vw,26px);color:var(--muted);max-width:640px;margin:22px auto 34px;font-weight:400;letter-spacing:-.01em}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--blue);color:#fff;font-weight:600;font-size:17px;padding:15px 28px;border-radius:999px;transition:transform .15s,box-shadow .15s;box-shadow:0 8px 24px rgba(0,113,227,.28)}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 30px rgba(0,113,227,.36)}
.btn svg{width:18px;height:18px}
.meta{margin-top:16px;font-size:13px;color:var(--muted)}
.meta a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}
.badges{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}
.bdg{display:inline-flex;align-items:center;gap:10px;padding:8px 16px 8px 10px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--fg);text-decoration:none;box-shadow:0 1px 2px rgba(0,0,0,.04);transition:transform .15s,box-shadow .15s,border-color .15s}
.bdg:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.09);border-color:transparent}
.bdg-ic{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;flex:0 0 34px}
.bdg-ph .bdg-ic{background:#FF6154}.bdg-gh .bdg-ic{background:#24292f}.bdg-hn .bdg-ic{background:#FF6600}
.bdg-ph .bdg-ic svg circle{fill:#FF6154}.bdg-hn .bdg-ic svg rect{fill:#FF6600}
.bdg-t{display:flex;flex-direction:column;line-height:1.1;font-weight:600;font-size:14px;text-align:left}
.bdg-t small{font-weight:400;font-size:10.5px;color:var(--muted);letter-spacing:.02em;text-transform:uppercase;margin-bottom:2px}
[data-soon]{display:none}
section{padding:72px 0}
section.soft{background:var(--soft)}
h2{font-size:clamp(30px,4.5vw,46px);letter-spacing:-.025em;line-height:1.1;text-align:center;font-weight:700}
.sub{text-align:center;color:var(--muted);font-size:19px;max-width:620px;margin:14px auto 46px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 26px;transition:transform .2s,box-shadow .2s}
.soft .card{border-color:transparent;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(0,0,0,.08)}
.card .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;font-size:22px;background:linear-gradient(135deg,#eaf3ff,#f4ecff)}
.card h3{font-size:19px;letter-spacing:-.01em;margin-bottom:6px}
.card p{color:var(--muted);font-size:15px}
/* fake mac menu */
.demo{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.demo .txt h2{text-align:left}
.demo .txt p{color:var(--muted);font-size:18px;margin-top:14px}
.demo .txt ul{margin:18px 0 0 18px;color:var(--fg);font-size:16px}
.demo .txt li{margin:6px 0}
.menubar{background:#fff;border-radius:18px;box-shadow:0 30px 70px rgba(0,0,0,.14),0 0 0 1px rgba(0,0,0,.05);overflow:hidden;font-size:13px}
.menubar .bar{height:30px;background:linear-gradient(#f7f7f9,#ececf0);display:flex;justify-content:flex-end;align-items:center;gap:16px;padding:0 14px;color:#333;border-bottom:1px solid #ddd}
.menubar .bar .glyph{width:16px;height:16px;border-radius:4px;background:#8a8a90;opacity:.6}
.menubar .bar .glyph.app{background:var(--blue);opacity:1;box-shadow:0 0 0 3px rgba(0,113,227,.18)}
.menubar .menu{padding:6px;background:rgba(246,246,248,.98);width:270px;margin:8px 0 14px auto;border-radius:12px;box-shadow:0 12px 40px rgba(0,0,0,.18),0 0 0 1px rgba(0,0,0,.08)}
.menubar .mi{padding:5px 10px 5px 26px;border-radius:7px;position:relative;color:#1d1d1f}
.menubar .mi.head{color:#8e8e93;font-size:12px}
.menubar .mi.on::before{content:"✓";position:absolute;left:9px;font-weight:600}
.menubar .mi.sel{background:var(--blue);color:#fff}
.menubar .mi.more::after{content:"›";position:absolute;right:10px;color:#8e8e93}
.menubar hr{border:0;border-top:1px solid rgba(0,0,0,.08);margin:5px 10px}
.steps{counter-reset:s}
.step{display:flex;gap:18px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--line)}
.step:last-child{border-bottom:1px solid var(--line)}
.step .n{counter-increment:s;flex:0 0 36px;height:36px;border-radius:50%;background:var(--fg);color:#fff;display:grid;place-items:center;font-weight:600}
.step .n::before{content:counter(s)}
.step h4{font-size:18px;margin-bottom:4px}
.step p{color:var(--muted);font-size:15px}
.step code{background:var(--soft);padding:2px 6px;border-radius:6px;font-size:13px}
details{border-top:1px solid var(--line);padding:16px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::after{content:"+";color:var(--muted);font-size:22px;font-weight:300}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin-top:10px;font-size:15px;max-width:760px}
.cta{text-align:center;padding:90px 0}
.thanks{padding:40px 0 72px}
.thanks-card{max-width:720px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:40px 36px;box-shadow:0 10px 40px rgba(0,0,0,.05)}
.thanks-logo{height:52px;width:auto;margin:0 auto 18px;display:block}
.thanks-card h3{font-size:24px;letter-spacing:-.02em;margin-bottom:10px}
.thanks-card p{color:var(--muted);font-size:16px;max-width:600px;margin:0 auto 18px}
.thanks-link{font-weight:600;font-size:16px}
footer{padding:36px 0 50px;color:var(--muted);font-size:13px;text-align:center;border-top:1px solid var(--line)}
footer a{color:var(--muted);text-decoration:underline;text-underline-offset:3px;margin:0 8px}
.badge{display:inline-block;background:var(--soft);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--muted);margin-bottom:22px}
@media(max-width:800px){.demo{grid-template-columns:1fr}.demo .txt h2{text-align:center}.menubar .menu{margin:8px auto 14px}nav ul{display:none}.hero{padding:64px 0 56px}}
@media(prefers-reduced-motion:reduce){.shimmer{animation:none}}

.seo h3{font-size:18px;margin-bottom:8px}
.seo-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:26px;max-width:1040px;margin:0 auto}
.seo-cols p{color:var(--muted);font-size:15px;line-height:1.6}
.seo-foot{text-align:center;color:var(--muted);font-size:13px;margin-top:30px}
.seo-foot a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}

.dlcount{display:flex;justify-content:center;align-items:center;gap:7px;margin:16px auto 0;color:var(--muted);font-size:14px;background:none;border:0;box-shadow:none;padding:0}
.dlc-ic{display:grid;place-items:center;color:var(--blue);opacity:.9}
.dlc-n{font-weight:600;color:var(--fg);font-variant-numeric:tabular-nums;font-size:14px}
.dlc-t{color:var(--muted)}

.hero-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
.hero-mouse{margin:8px auto 0;max-width:260px;text-align:center}
.hero-mouse svg{width:100%;height:auto;display:block;filter:drop-shadow(0 30px 40px rgba(0,60,140,.10))}
.hero-mouse figcaption{display:flex;flex-direction:column;gap:2px;margin-top:6px;font-size:22px;font-weight:700;letter-spacing:-.02em;line-height:1.2}
.hero-mouse figcaption span:nth-child(1){color:var(--fg)}
.hero-mouse figcaption span:nth-child(2){color:#6e6e73}
.hero-mouse figcaption span:nth-child(3){background:linear-gradient(90deg,#0071e3,#bf5af2);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-mouse .ring{fill:none;stroke:#0071e3;stroke-width:3;opacity:0;transform-origin:150px 140px;animation:ring 2.4s ease-out infinite}
.hero-mouse .r2{animation-delay:.25s}
.hero-mouse .fing{animation:touchp 2.4s ease-in-out infinite;transform-origin:150px 140px}
@keyframes ring{0%,28%{opacity:0;transform:scale(.6)}32%{opacity:.9;transform:scale(1)}70%{opacity:0;transform:scale(3.2)}100%{opacity:0;transform:scale(3.2)}}
@keyframes touchp{0%,20%{opacity:0;transform:scale(.7)}28%,40%{opacity:1;transform:scale(1)}60%,100%{opacity:0;transform:scale(.9)}}
@media(min-width:1000px){.hero-grid{grid-template-columns:1.35fr .65fr;gap:40px}.hero-main{text-align:center}.hero-mouse{max-width:300px;margin:0}}
@media(prefers-reduced-motion:reduce){.hero-mouse .ring,.hero-mouse .fing{animation:touchp 2.4s ease-in-out infinite;transform-origin:150px 140px}}

.mouse-photo{position:relative;mix-blend-mode:multiply}
.mouse-photo img{width:100%;height:auto;display:block}
.mouse-photo .touch{position:absolute;width:0;height:0}
.mouse-photo .touch b{position:absolute;left:-22px;top:-26px;width:44px;height:52px;border-radius:50%;background:radial-gradient(closest-side,rgba(0,100,220,.5),rgba(0,100,220,.16) 65%,transparent);filter:blur(3px);opacity:0}
.mouse-photo .touch i{position:absolute;left:-20px;top:-20px;width:40px;height:40px;border-radius:50%;border:2px solid rgba(0,113,227,.7);opacity:0}
.mouse-photo .t1 b{animation:p1 4.8s ease-in-out infinite}.mouse-photo .t1 i{animation:w1 4.8s ease-out infinite}
.mouse-photo .t2 b,.mouse-photo .t3 b{animation:p2 4.8s ease-in-out infinite}.mouse-photo .t2 i,.mouse-photo .t3 i{animation:w2 4.8s ease-out infinite}
@keyframes p1{0%,8%{opacity:0;transform:scale(.8)}13%,20%{opacity:1;transform:scale(1)}30%,100%{opacity:0;transform:scale(.9)}}
@keyframes w1{0%,14%{opacity:0;transform:scale(.6)}16%{opacity:.9;transform:scale(1)}40%,100%{opacity:0;transform:scale(3.4)}}
@keyframes p2{0%,58%{opacity:0;transform:scale(.8)}63%,70%{opacity:1;transform:scale(1)}80%,100%{opacity:0;transform:scale(.9)}}
@keyframes w2{0%,64%{opacity:0;transform:scale(.6)}66%{opacity:.9;transform:scale(1)}90%,100%{opacity:0;transform:scale(3)}}
.hero-mouse figcaption{font-size:28px;letter-spacing:-.025em;line-height:1.15;margin-top:2px}
.hero-mouse figcaption small{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:0;margin-top:10px}
@media(prefers-reduced-motion:reduce){.mouse-photo .touch *{animation:none}}

.mouse-photo{mix-blend-mode:normal}
.mouse-photo img{mix-blend-mode:multiply}
.langs{font-size:13px;margin-bottom:10px;color:var(--muted)}
.langs a{margin:0 2px}
.langs b{color:var(--fg);font-weight:600}

:lang(ja) h1,:lang(zh-Hans) h1,:lang(ja) h2,:lang(zh-Hans) h2{word-break:keep-all;line-break:strict}

.langmenu{position:relative;margin-left:22px;font-size:13px}
.langmenu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;padding:5px 10px;border-radius:999px;color:var(--fg);opacity:.85;border:1px solid var(--line)}
.langmenu summary::-webkit-details-marker{display:none}
.langmenu summary:hover{opacity:1;border-color:#c9c9cf}
.langmenu[open] summary{opacity:1;background:var(--soft)}
.langlist{position:absolute;right:0;top:calc(100% + 8px);min-width:170px;background:rgba(255,255,255,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(0,0,0,.08);border-radius:12px;box-shadow:0 12px 34px rgba(0,0,0,.14);padding:6px;display:flex;flex-direction:column;z-index:50}
.langlist a{color:var(--fg);padding:7px 10px;border-radius:8px;font-size:14px}
.langlist a:hover{background:var(--blue);color:#fff}
.langlist a[aria-current]{font-weight:600}
.langlist a[aria-current]::after{content:" ✓";color:var(--blue)}
.langlist a[aria-current]:hover::after{color:#fff}
nav .wrap{gap:12px}
nav ul{margin-left:auto}
@media(max-width:800px){.langmenu{margin-left:auto}}
details.langmenu{border:0;padding:0}
details.langmenu:last-of-type{border-bottom:0}
.langmenu summary{font-weight:400;font-size:13px;justify-content:flex-start}
.langmenu summary::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:2px;opacity:.6}
.langmenu[open] summary::after{content:"";transform:rotate(-135deg) translateY(-1px)}