/* p4fb57 | nav:n7 hero:h1 marker:m5 facts:f2 */
*{margin:0;padding:0;box-sizing:border-box}
:root{--p4fb57-a:#3561D6;--p4fb57-f:#3561D6;--p4fb57-d:#28499E;--p4fb57-t:#EAEFFA;
--p4fb57-t2:#F4F7FC;--p4fb57-l:#D6DFF6;--p4fb57-ink:#191F30;--p4fb57-tx2:#797D86;
--p4fb57-tx3:#A7A9B0;--p4fb57-r:10px}
html{-webkit-text-size-adjust:100%}
body{background:#FFFFFF;color:#191F30;font-family:'Microsoft YaHei','PingFang SC','Hiragino Sans GB','Source Han Sans SC',sans-serif;font-size:16.5px;line-height:1.8}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;background:none;border:0;cursor:pointer}
figure{margin:0}
summary{list-style:none;cursor:pointer}summary::-webkit-details-marker{display:none}
.p4fb57-wrap{width:100%;max-width:1272px;margin:0 auto;padding:0 20px}
.p4fb57-skip{position:absolute;left:-9999px}.p4fb57-skip:focus{left:8px;top:8px;z-index:99;background:#fff;padding:8px 12px}
.nw{white-space:nowrap}
.p4fb57-btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 26px;
border-radius:8px;background:#3561D6;color:#fff;font-size:16.5px;font-weight:600;
box-shadow:0 10px 30px rgba(20,22,28,.10);transition:background .2s ease,transform .2s ease}
.p4fb57-btn:hover{background:#28499E;transform:translateY(-1px)}
.p4fb57-logo{min-height:44px}
.p4fb57-eyebrow{display:flex;align-items:center;gap:8px;font-size:11.09px;font-weight:600;color:#28499E}

.p4fb57-hd{position:sticky;top:0;z-index:50;background:#FFFFFF;border-bottom:1px solid #D6DFF6}
.p4fb57-hd-in{display:flex;align-items:center;gap:17.2px;min-height:64px}
.p4fb57-logo{display:inline-flex;align-items:center;flex:none}
.p4fb57-logo img{height:28px;width:auto}
.p4fb57-logo b{font-size:20.13px;font-weight:700}
.p4fb57-nav{display:none;flex:1;justify-content:flex-end;gap:6px}
.p4fb57-nav a{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;font-size:15px;
border-radius:999px;background:#F6F6F6;color:#CFD2D8}
.p4fb57-nav a[aria-current]{background:#3561D6;color:#fff;font-weight:600}
.p4fb57-hd-cta{display:inline-flex;margin-left:12px;min-height:40px;padding:0 16px;font-size:15px;flex:none}
.p4fb57-burger{width:44px;height:44px;flex:none;display:inline-flex;align-items:center;justify-content:center;
border:1px solid #3A3D44;border-radius:6px;background:transparent}
.p4fb57-burger span{position:relative;width:18px;height:2px;background:#fff}
.p4fb57-burger span::before,.p4fb57-burger span::after{content:'';position:absolute;left:0;width:18px;height:2px;background:inherit}
.p4fb57-burger span::before{top:-6px}.p4fb57-burger span::after{top:6px}
.p4fb57-panel{display:none;background:#FFFFFF;border-bottom:1px solid #D6DFF6}
.p4fb57-panel.open{display:block}
.p4fb57-panel a{display:flex;align-items:center;min-height:48px;font-size:16.5px;color:#797D86;border-bottom:1px solid #D6DFF6}
.p4fb57-panel a:last-child{border-bottom:0}
.p4fb57-panel a[aria-current]{color:#28499E;font-weight:600}
@media(min-width:1024px){.p4fb57-burger,.p4fb57-panel{display:none!important}
.p4fb57-nav{display:flex}}

.p4fb57-hero{padding:68.1px 0;background:#F6F6F6}
.p4fb57-hero-in{display:grid;gap:17.2px}
.p4fb57-hero-fig{position:relative}
.p4fb57-hero-fig img{width:100%;height:auto;border-radius:10px;border:1px solid #D6DFF6;box-shadow:0 10px 30px rgba(20,22,28,.10)}
.p4fb57-hero-fig i{position:absolute;left:12px;top:12px;font-style:normal;background:#3561D6;color:#fff;
font-size:11px;font-weight:600;letter-spacing:.05em;padding:4px 10px;border-radius:4px}
@media(min-width:1024px){.p4fb57-hero-in{grid-template-columns:7fr 5fr;align-items:center;gap:34.4px}}
.p4fb57-h1{font-size:24.56px;line-height:1.26;font-weight:700}
.p4fb57-lead{margin-top:14px;font-size:16.5px;color:#797D86}
.p4fb57-hero-act{margin-top:15.5px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.p4fb57-hero-note{font-size:11.09px;color:#A7A9B0}
@media(min-width:1024px){.p4fb57-h1{font-size:42.5px}}

.p4fb57-h2{font-size:20.13px;line-height:1.4;font-weight:700}
.p4fb57-h2 .p4fb57-dot{display:inline-block;width:8px;height:8px;background:#3561D6;border-radius:50%;margin-right:8px;vertical-align:middle}

.p4fb57-sec{padding:44.7px 0 0}
.p4fb57-sec-head{max-width:720px}
.p4fb57-sec-head p{margin-top:10px;color:#797D86}
.p4fb57-prose{padding:41.6px 0 37.9px}
.p4fb57-prose section{margin-bottom:37.9px}
.p4fb57-prose section:last-child{margin-bottom:0}
.p4fb57-prose p{color:#797D86;margin-top:12px}
.p4fb57-p{color:#797D86;margin-top:12px}
.p4fb57-ul{margin:12px 0}
.p4fb57-ul li{position:relative;padding:5px 0 5px 18px;color:#797D86}
.p4fb57-ul li::before{content:'';position:absolute;left:0;top:13px;width:7px;height:7px;background:#3561D6}
.p4fb57-split{display:grid;gap:17.2px;align-items:center;padding:31.8px 0 0}
.p4fb57-split img{width:100%;height:auto;border-radius:10px;border:1px solid #D6DFF6;box-shadow:0 10px 30px rgba(20,22,28,.10)}
@media(min-width:1024px){.p4fb57-split{grid-template-columns:1fr 1fr;gap:27.5px}
.p4fb57-split.rev img{order:2}}
.p4fb57-band{background:#1B1D22;border-radius:10px;padding:17.2px;text-align:center}
.p4fb57-band h2{color:#fff;font-size:31.9px;line-height:1.45}
.p4fb57-band h2::before,.p4fb57-band h2::after{display:none}
.p4fb57-band h2 em{font-style:normal;color:#3561D6}
.p4fb57-band p{color:#B9BDC6;margin-top:10px;font-size:13.52px}

.p4fb57-facts{display:grid;gap:13.8px}
.p4fb57-facts li{background:#FFFFFF;border:1px solid #D6DFF6;border-top:3px solid #3561D6;border-radius:10px;padding:18px 20px;box-shadow:0 10px 30px rgba(20,22,28,.10)}
.p4fb57-facts b{display:block;font-size:16.5px}
.p4fb57-facts p{font-size:11.09px;color:#A7A9B0;margin-top:4px}
@media(min-width:768px){.p4fb57-facts{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.p4fb57-facts{grid-template-columns:repeat(4,1fr)}}

.p4fb57-who{display:grid;gap:12px;padding-top:31.8px}
.p4fb57-who li{padding:18px 20px;border:1px solid #D6DFF6;border-radius:10px;background:#FFFFFF;box-shadow:0 10px 30px rgba(20,22,28,.10)}
.p4fb57-who b{display:block;font-size:16.5px}
.p4fb57-who p{font-size:11.09px;color:#A7A9B0;margin-top:4px}
@media(min-width:768px){.p4fb57-who{grid-template-columns:1fr 1fr}}
.p4fb57-crumb{display:flex;align-items:center;gap:8px;padding:20px 0 0;font-size:11.09px;color:#A7A9B0}
.p4fb57-crumb a{display:inline-flex;align-items:center;min-height:44px;color:#A7A9B0}
.p4fb57-crumb a:hover{color:#28499E}
.p4fb57-crumb [aria-current]{color:#797D86}
.p4fb57-phead{padding:8px 0 20.6px;border-bottom:1px solid #D6DFF6}
.p4fb57-phead h1{font-size:24.56px;line-height:1.35}
.p4fb57-phead .p4fb57-lead{margin-top:12px}
.p4fb57-duo{display:grid;gap:17.2px;padding:34.1px 0 30.3px}
@media(min-width:1024px){.p4fb57-duo{grid-template-columns:minmax(0,680px) minmax(280px,1fr);gap:29.2px;align-items:start}}
.p4fb57-aside{display:grid;gap:16px;align-content:start}
.p4fb57-aside figure img{width:100%;height:auto;border-radius:10px;border:1px solid #D6DFF6;box-shadow:0 10px 30px rgba(20,22,28,.10)}
.p4fb57-card{background:#F6F6F6;border:1px solid #D6DFF6;border-radius:10px;padding:18px 20px}
.p4fb57-card h3{font-size:11.09px;color:#A7A9B0;font-weight:700;letter-spacing:.06em;margin-bottom:10px}
.p4fb57-card h3::before{content:'';display:inline-block;width:6px;height:6px;background:#3561D6;margin-right:8px}
.p4fb57-nlist li{display:flex;gap:10px;padding:9px 0;border-bottom:1px dashed #D6DFF6;font-size:13.52px;color:#797D86}
.p4fb57-nlist li:last-child{border-bottom:0}
.p4fb57-nlist li::before{content:'';width:6px;height:6px;background:#3561D6;margin-top:9px;flex:none}
.p4fb57-quote{border-left:3px solid #3561D6;background:#EAEFFA;border-radius:0 6px 6px 0;padding:14px 18px;font-size:13.52px;color:#797D86}
.p4fb57-tags{display:flex;flex-wrap:wrap;gap:8px}
.p4fb57-tags span{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:4px;
font-size:11.09px;color:#797D86;background:#FFFFFF;border:1px solid #D6DFF6}
.p4fb57-tags span::before{content:'';width:6px;height:6px;background:#3561D6;flex:none}
.p4fb57-faq details{border:1px solid #D6DFF6;border-radius:10px;background:#FFFFFF;box-shadow:0 10px 30px rgba(20,22,28,.10);margin-bottom:12px;overflow:hidden}
.p4fb57-faq summary{display:flex;align-items:center;gap:12px;min-height:54px;padding:12px 18px;font-size:16.5px;font-weight:600}
.p4fb57-faq summary::before{content:'+';flex:none;width:22px;height:22px;border-radius:4px;background:#EAEFFA;
color:#28499E;font-weight:700;line-height:22px;text-align:center}
.p4fb57-faq details[open] summary::before{content:'−';background:#3561D6;color:#fff}
.p4fb57-faq details[open] summary{background:#F6F6F6}
.p4fb57-faq .p4fb57-a{padding:4px 18px 18px 52px;font-size:13.52px;color:#797D86}
.p4fb57-faq .p4fb57-a p{margin-bottom:8px}.p4fb57-faq .p4fb57-a p:last-child{margin-bottom:0}

.p4fb57-ft{margin-top:75.7px;background:#1B1D22}
.p4fb57-ft-in{display:flex;flex-direction:column;gap:12px;padding:25.8px 0}
.p4fb57-ft-logo img{height:26px;width:auto}
.p4fb57-ft-logo b{font-size:20.13px;font-weight:700;color:#fff}
.p4fb57-ft p{font-size:11.09px;color:#A9ADB5;max-width:62em}
@media(max-width:480px){.p4fb57-wrap{padding:0 16px}
.p4fb57-hd-in{gap:8px;min-height:56px}.p4fb57-logo img{height:24px}
.p4fb57-logo b{font-size:16.5px}.p4fb57-hd-cta{min-height:44px;padding:0 12px;font-size:14px}}