:root{--paper:#FBFCFD;--mist:#EFF4F7;--ink:#0A1922;--muted:#5B6E78;--line:#E1E8EC;--blue:#0E6E8C;--blue-dk:#0A5165;--dawn:#E0A03C;--sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--display:"Helvetica Neue","Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;--mono:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;--wrap:1080px;--gut:24px}
*,::before,::after{box-sizing:border-box}
html{text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.site-head{position:fixed;inset:0 0 auto;z-index:50;background:rgba(251,252,253,.78);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:border-color .3s}
.site-head.is-stuck{border-bottom-color:var(--line)}
.head-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:26px;height:26px;object-fit:contain}
.brand span{font-family:var(--display);font-weight:600;font-size:17px;letter-spacing:-.015em}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:14px;color:var(--muted);transition:color .2s}
.nav a:hover{color:var(--ink)}
.nav .nav-cta{color:var(--blue);border:1px solid var(--line);padding:7px 16px;border-radius:999px;transition:border-color .2s,background .2s}
.nav .nav-cta:hover{border-color:var(--blue);background:#fff}
@media(max-width:760px){.nav a:not(.nav-cta){display:none}}
.rail{position:fixed;left:34px;top:50%;transform:translateY(-50%);height:46vh;width:1px;z-index:20;pointer-events:none;background:repeating-linear-gradient(to bottom,var(--line) 0 4px,transparent 4px 10px);opacity:0;transition:opacity .6s}
.rail.on{opacity:1}
.rail-bird{position:absolute;left:50%;top:0;width:16px;height:10px;margin-left:-8px;margin-top:-5px;color:var(--blue);transition:top .12s linear}
.rail-cap{position:absolute;left:50%;width:3px;height:3px;margin-left:-1.5px;border-radius:50%;background:var(--line)}
.rail-cap.t{top:-1px}
.rail-cap.b{bottom:-1px}
@media(max-width:1240px){.rail{display:none}}
.hero{position:relative;padding:150px 0 96px;overflow:hidden}
.sky{position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(120% 80% at 70% 0%,rgb(230,241,246) 0%,rgba(230,241,246,0) 62%),radial-gradient(90% 60% at 10% 20%,rgb(243,240,233) 0%,rgba(243,240,233,0) 55%)}
.flight{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero .wrap{position:relative;z-index:1}
.eyebrow{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.24em;text-transform:uppercase;color:var(--blue);display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.5}
.hero h1{font-family:var(--display);font-size:clamp(56px,11vw,116px);font-weight:200;letter-spacing:-.04em;line-height:.94;margin:26px 0 0}
.hero h1 em{font-style:normal;font-weight:600}
.hero-sub{font-size:clamp(17px,2.2vw,21px);font-weight:300;color:var(--ink);margin:22px 0 0;max-width:30ch;line-height:1.5}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:44px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted)}
.hero-meta b{font-weight:500;color:var(--ink)}
.sec{padding:104px 0;border-top:1px solid var(--line)}
.sec-alt{background:linear-gradient(180deg,var(--mist),var(--paper))}
.sec-head{margin-bottom:56px;max-width:60ch}
.sec-head h2{font-family:var(--display);font-size:clamp(28px,4.2vw,42px);font-weight:250;letter-spacing:-.03em;line-height:1.2;margin:20px 0 0}
.sec-head p{color:var(--muted);margin:16px 0 0;font-size:15px;max-width:52ch}
.about-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:64px;align-items:start}
.about-body p{margin:0 0 20px;font-size:16.5px;color:rgb(34,50,60)}
.about-body p:last-of-type{margin-bottom:0}
.about-body strong{font-weight:500;color:var(--ink)}
.about-side{border-left:1px solid var(--line);padding-left:28px}
.about-side dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.about-side dd{margin:6px 0 24px;font-size:15px;color:var(--ink);line-height:1.6}
.about-side dd:last-child{margin-bottom:0}
@media(max-width:840px){.about-grid{grid-template-columns:1fr;gap:40px}.about-side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:28px}}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:999px;font-size:15px;font-weight:500;letter-spacing:.02em;background:var(--ink);color:#fff;border:1px solid var(--ink);transition:background .22s,border-color .22s,transform .22s}
.btn:hover{background:var(--blue-dk);border-color:var(--blue-dk);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn .wing{transition:transform .28s cubic-bezier(.2,.8,.3,1)}
.btn:hover .wing{transform:translateX(4px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:#fff;color:var(--blue-dk);border-color:var(--blue)}
.btn-row{margin-top:40px}
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.feat-item{background:var(--paper);padding:38px 30px;transition:background .3s}
.feat-item:hover{background:#fff}
.feat-item h3{font-size:16px;font-weight:500;margin:0 0 12px;letter-spacing:.01em}
.feat-item p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.7}
.feat-tag{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--blue);text-transform:uppercase;display:block;margin-bottom:16px}
@media(max-width:900px){.feat{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.feat{grid-template-columns:1fr}}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:4px;padding:34px 30px 30px;transition:border-color .25s,box-shadow .25s,transform .25s}
.plan:hover{border-color:rgb(198,214,222);box-shadow:rgba(10,25,34,.35) 0 18px 44px -28px;transform:translateY(-3px)}
.plan.is-pick{border-color:var(--ink)}
.plan-badge{position:absolute;top:-1px;right:22px;font-family:var(--mono);font-size:10px;letter-spacing:.16em;background:var(--dawn);color:rgb(42,29,6);padding:4px 10px;border-radius:0 0 3px 3px}
.plan-kind{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.plan-price{display:flex;align-items:baseline;gap:6px;margin:14px 0 4px;font-family:var(--display)}
.plan-price .cur{font-size:19px;font-weight:300;color:var(--muted)}
.plan-price .num{font-size:50px;font-weight:250;letter-spacing:-.045em;line-height:1}
.plan-price .per{font-size:14px;color:var(--muted);font-family:var(--sans)}
.plan-note{font-size:13px;color:var(--muted);margin:0 0 22px}
.plan-list{list-style:none;margin:0 0 30px;padding:22px 0 0;border-top:1px solid var(--line);flex:1}
.plan-list li{position:relative;padding-left:20px;margin-bottom:11px;font-size:14px;color:rgb(34,50,60);line-height:1.6}
.plan-list li:last-child{margin-bottom:0}
.plan-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:4px;border-left:1px solid var(--blue);border-top:1px solid var(--blue);transform:rotate(-38deg)}
.plan .btn{width:100%;justify-content:center}
@media(max-width:900px){.plans{grid-template-columns:1fr}}
.revs{columns:3;column-gap:20px}
.rev{break-inside:avoid;margin:0 0 20px;background:#fff;border:1px solid var(--line);border-radius:4px;padding:26px 24px}
.rev-who{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--blue);text-transform:uppercase;margin-bottom:12px}
.rev p{margin:0;font-size:14.5px;color:rgb(34,50,60);line-height:1.75}
@media(max-width:900px){.revs{columns:2}}
@media(max-width:600px){.revs{columns:1}}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:24px 44px 24px 0;position:relative;font-size:16px;font-weight:400;transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--blue-dk)}
.faq summary::after{content:"";position:absolute;right:6px;top:33px;width:8px;height:8px;border-right:1px solid var(--muted);border-bottom:1px solid var(--muted);transform:rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq-q{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--muted);margin-right:14px}
.faq-a{padding:0 60px 26px 0;margin:0;color:var(--muted);font-size:15px}
.band{background:var(--ink);color:#fff;border-radius:6px;padding:64px 48px;text-align:center;position:relative;overflow:hidden}
.band h2{font-family:var(--display);font-weight:200;letter-spacing:-.03em;font-size:clamp(26px,4vw,40px);margin:0 0 14px}
.band p{color:rgb(147,167,177);margin:0 auto 34px;max-width:44ch;font-size:15px}
.band .btn{background:#fff;color:var(--ink);border-color:#fff}
.band .btn:hover{background:rgb(220,234,240);border-color:rgb(220,234,240)}
@media(max-width:600px){.band{padding:48px 24px}}
.site-foot{border-top:1px solid var(--line);padding:44px 0;margin-top:104px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.foot-in a:hover{color:var(--blue)}
.foot-nav{display:flex;gap:22px;flex-wrap:wrap}
.rise{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rise.in{opacity:1;transform:none}
.rise.d1{transition-delay:.07s}
.rise.d2{transition-delay:.14s}
.rise.d3{transition-delay:.21s}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,::before,::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}.rise{opacity:1;transform:none}.flight{display:none}}