:root{
--bg:#EEF3F9;--bg2:#E1E9F4;--paper:#FFFFFF;--ink:#132038;--ink2:#4B5C74;--line:#D2DDEB;
--brand:#2B5FD9;--brand-d:#1E48AE;--brand-dd:#16357F;--accent:#4FA3E3;--mint:#4FD6BA;--pop:#F2653C;
--dark:#0E1D33;--white:#FFFFFF;
--font:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei','WenQuanYi Micro Hei',Arial,sans-serif;
--maxw:1140px;--r:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 var(--font)}
img{max-width:100%;height:auto;border:0;display:block}
figure,figcaption,blockquote,dl,dd,dt,table,thead,tbody,tr,th,td,caption,p,h1,h2,h3,h4,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
a{color:var(--brand);text-decoration:none}
h1,h2,h3{line-height:1.35;font-weight:700}
b,strong{font-weight:700}
.wrap{width:100%;max-width:calc(var(--maxw) + 44px);margin:0 auto;padding:0 22px}
.btn{display:inline-block;padding:13px 26px;font-size:15px;font-weight:700;border-radius:999px;text-align:center;white-space:nowrap;transition:background .18s,color .18s,box-shadow .18s,transform .18s}
.btn.btn-primary{background:var(--brand-d);color:var(--white);box-shadow:0 4px 0 var(--brand-dd)}
.btn.btn-primary:hover{background:var(--brand);color:var(--white);display:inline-block;padding:13px 26px;white-space:nowrap;transform:translateY(-1px);box-shadow:0 5px 0 var(--brand-dd)}
.btn.btn-ghost{background:var(--paper);color:var(--brand-d);box-shadow:inset 0 0 0 1px var(--line),0 4px 0 #E2EAF6}
.btn.btn-ghost:hover{background:#F5F9FF;color:var(--brand-dd);display:inline-block;padding:13px 26px;white-space:nowrap;transform:translateY(-1px)}
.btn.btn-light{background:var(--white);color:var(--brand-d);box-shadow:0 4px 0 #0A1729}
.btn.btn-light:hover{background:#EAF1FC;color:var(--brand-dd);display:inline-block;padding:13px 26px;white-space:nowrap;transform:translateY(-1px);box-shadow:0 5px 0 #0A1729}
.top{position:sticky;top:0;z-index:30;background:var(--white);border-bottom:1px solid var(--line)}
.top__in{display:flex;align-items:center;gap:16px;min-height:66px}
.brand{order:1;display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand__i{width:38px;height:38px;border-radius:10px}
.brand__t{display:flex;flex-direction:column;line-height:1.15}
.brand__t strong{font-size:17px}
.brand__t em{font-style:normal;font-size:11px;color:var(--ink2);letter-spacing:.08em}
.nav{order:2;display:flex;gap:6px;margin-left:8px;flex-wrap:wrap}
.nav a{padding:8px 12px;border-radius:9px;font-size:15px;color:var(--ink2)}
.nav a:hover{color:var(--brand);background:#F1F6FD}
.nav a[aria-current="page"]{color:var(--brand-dd);background:#E7EEFB;font-weight:700}
.top__dl{order:3;margin-left:auto}
.hero{background:radial-gradient(circle at 88% 76%,rgba(43,95,217,.13),rgba(43,95,217,0) 58%),linear-gradient(156deg,#F8FBFF 0%,#E8F1FB 48%,#DCE9F7 100%)}
.hero__in{display:flex;align-items:center;gap:44px;padding:56px 22px 62px}
.hero__txt{flex:1 1 54%;min-width:0}
.hero__shot{flex:0 0 auto;text-align:center}
.hero__shot img{width:auto;max-width:270px;height:auto;margin:0 auto;border-radius:18px;box-shadow:0 18px 40px rgba(14,32,60,.18),0 0 0 6px var(--paper)}
.hero__shot figcaption{margin-top:14px;font-size:12.5px;color:var(--ink2)}
.kicker{display:inline-block;font-size:12.5px;letter-spacing:.14em;color:var(--brand-dd);background:#E3EDFB;border-radius:999px;padding:5px 14px;margin-bottom:16px}
.hero h1{font-size:36px}
.lead{margin-top:14px;font-size:16.5px;color:var(--ink2);max-width:620px}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.cta-note{margin-top:14px;font-size:13px;color:var(--ink2)}
.stats{background:var(--dark);color:#DCE7F7}
.stats__in{padding:42px 22px}
.stats__ul{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stats li{border-left:2px solid rgba(143,216,196,.5);padding-left:16px}
.stats b{display:block;font-size:26px;color:#8FD8C4}
.stats span{font-size:13px;color:#9DB0CC}
.sec__in{padding:62px 22px 66px}
.sec--alt{background:var(--bg2)}
.sec__hd{max-width:740px;margin-bottom:30px}
.sec__hd h2{font-size:26px}
.sub{margin-top:10px;font-size:15px;color:var(--ink2)}
.feat{counter-reset:ft;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat li{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;counter-increment:ft}
.feat li::before{content:counter(ft,decimal-leading-zero);display:block;font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.1em;margin-bottom:10px}
.feat h3{font-size:17px;margin-bottom:8px}
.feat p{font-size:14.5px;color:var(--ink2)}
.shots{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.shots figure{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;align-items:center}
.shots img{width:auto;max-width:min(100%,260px);height:auto;border-radius:12px;box-shadow:0 8px 20px rgba(14,32,60,.12)}
.shots figcaption{margin-top:14px;font-size:13px;color:var(--ink2);text-align:center}
.shots figcaption::before{content:"";display:inline-block;width:6px;height:6px;margin-right:8px;border-radius:2px;background:var(--pop);vertical-align:middle}
.voice{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.voice li{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:22px 20px}
.voice p{font-size:14.5px;color:var(--ink2)}
.voice cite{display:block;margin-top:14px;font-style:normal;font-size:13px;color:var(--brand-dd);font-weight:700}
.qa{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.qa details{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.qa summary{font-weight:700;font-size:15.5px;cursor:pointer;list-style:none;position:relative;padding-right:26px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:0;top:0;color:var(--accent);font-weight:700}
.qa details[open] summary::after{content:"-"}
.qa details p{margin-top:10px;font-size:14.5px;color:var(--ink2)}
.rel ul{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rel li{margin:0}
.rel a{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:20px;color:var(--ink);transition:transform .18s,box-shadow .18s}
.rel a:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(14,32,60,.12)}
.rel b{display:block;font-size:16px;margin-bottom:8px;color:var(--brand-dd)}
.rel span{font-size:14px;color:var(--ink2)}
.cta{background:var(--dark);color:#E6EEF9}
.cta__in{padding:56px 22px 60px;text-align:center}
.cta h2{font-size:24px;color:var(--white)}
.cta p{margin-top:12px;font-size:15px;color:#9DB0CC}
.cta .btn{margin-top:24px}
.foot{background:#0A1626;color:#8FA3BE}
.foot__in{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:start;padding:44px 22px}
.foot__logo{width:34px;height:34px;border-radius:9px;margin-bottom:10px}
.foot__brand p{font-size:13.5px;max-width:440px}
.foot__nav{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:13.5px}
.foot a{color:#B9CBE2}
.foot__copy{grid-column:1/-1;font-size:12.5px;color:#7A8DA8}
.foot__note{grid-column:1/-1;font-size:12.5px;color:#7A8DA8;margin-top:6px}
.page-hero{background:linear-gradient(160deg,#F7FBFF,#E3EDFA)}
.page-hero__in{padding:44px 22px 40px}
.crumbs{font-size:13px;color:var(--ink2);margin-bottom:14px}
.crumbs a{color:var(--ink2)}
.crumbs a:hover{color:var(--brand)}
.page-hero h1{font-size:30px}
.prose{background:var(--paper)}
.prose__in{padding:52px 22px 60px}
.prose h2{font-size:23px;margin:38px 0 14px}
.prose h2:first-child{margin-top:0}
.prose p{font-size:15.5px;color:var(--ink2);margin-bottom:14px}
.prose ul{margin-bottom:14px}
.prose h2,.prose p,.prose ul{max-width:900px}
.prose li{font-size:15.5px;color:var(--ink2);margin-bottom:9px;padding-left:18px;position:relative}
.prose li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:2px;background:var(--accent)}
.prose .steps li::before{content:counter(st,decimal-leading-zero);position:absolute;left:16px;top:17px;font-size:15px;font-weight:700;color:var(--accent);background:none;width:auto;height:auto;border-radius:0}
.prose .steps{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;counter-reset:st;margin:20px 0 22px}
.prose .steps li{background:#F4F8FD;border:1px solid var(--line);border-radius:var(--r);padding:17px 20px 17px 58px;counter-increment:st}
.prose .steps b{display:block;font-size:15.5px;margin-bottom:6px;color:var(--ink)}
.prose .steps span{font-size:14px;color:var(--ink2)}
.shot-solo{margin:26px auto;text-align:center}
.shot-solo img{width:auto;max-width:min(400px,100%);height:auto;margin:0 auto;border-radius:14px;box-shadow:0 10px 26px rgba(14,32,60,.14)}
.shot-solo figcaption{margin-top:12px;font-size:13px;color:var(--ink2)}
.prose .tbl-cap{font-size:13.5px;color:var(--ink2);margin:0 0 10px}
.tbl-scroll{margin:18px 0 22px;overflow-x:auto}
.tbl{width:100%;min-width:560px;border-collapse:collapse;font-size:14.5px}
.tbl th,.tbl td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.tbl th{background:#EEF4FC;color:var(--ink);font-weight:700}
.tbl td{color:var(--ink2)}
.fade{animation:fadeblur .52s cubic-bezier(.22,.72,.24,1) both}
.fade.d1{animation-delay:.07s}
.fade.d2{animation-delay:.14s}
@keyframes fadeblur{from{opacity:0;filter:blur(8px)}to{opacity:1;filter:blur(0)}}
@media (prefers-reduced-motion:reduce){.fade,.fade.d1,.fade.d2{animation:none;opacity:1;filter:none}}
@media (max-width:980px){
.hero__in{flex-direction:column;align-items:flex-start;gap:30px;padding:44px 22px 46px}
.hero__shot{align-self:center;width:100%}
.stats__ul{grid-template-columns:repeat(2,1fr)}
.feat{grid-template-columns:repeat(2,1fr)}
.prose .steps{grid-template-columns:1fr}
.qa,.rel ul{grid-template-columns:1fr}
.foot__in{grid-template-columns:1fr}
}
@media (max-width:620px){
.top__in{flex-wrap:wrap;gap:10px;padding-top:10px;padding-bottom:10px}
.brand{order:1}
.top__dl{order:2;margin-left:auto;padding:11px 20px}
.nav{order:3;flex:1 0 100%;justify-content:center;margin-left:0;flex-wrap:wrap}
.hero h1{font-size:28px}
.page-hero h1{font-size:25px}
.hero__shot img{max-width:240px}
.stats__ul,.feat,.voice,.shots,.qa,.rel ul{grid-template-columns:1fr}
.prose h2{font-size:21px}
}