*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:#222;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:#5F55F5;text-decoration:none;touch-action:manipulation}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible{outline:3px solid #FFC400;outline-offset:3px}img{max-width:100%}button{font:inherit;cursor:pointer}.container{width:min(100% - 40px,1160px);margin:0 auto}.skip-link{position:absolute;left:12px;top:-70px;padding:10px;background:#fff;z-index:13000}.skip-link:focus{top:6px}.site-header{position:sticky;top:0;z-index:1000;background:#fff;border-bottom:1px solid #ecebfa;box-shadow:0 3px 16px #231a6808}.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px;min-width:0}.site-logo{flex:0 0 166px;display:flex;align-items:center;min-width:0;white-space:nowrap}.site-logo img{height:36px;width:auto;object-fit:contain}.site-logo strong,.drawer-logo strong{font-size:25px;color:#231A68}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:clamp(12px,2vw,27px);flex:1;white-space:nowrap;min-width:0}.desktop-nav a{color:#222;font-weight:600;font-size:15px;display:inline-flex;align-items:center;min-height:44px;border-bottom:2px solid transparent}.desktop-nav a.active{color:#5F55F5;border-bottom-color:#FFC400}.register-button{display:inline-flex;align-items:center;justify-content:center;min-width:114px;min-height:42px;border-radius:999px;white-space:nowrap;font-weight:700;background:linear-gradient(135deg,#5F55F5 0%,#7668FF 48%,#FFC400 100%);color:#fff;padding:7px 19px;flex-shrink:0}.register-button:hover{color:#fff;text-decoration:none;filter:brightness(.97)}.menu-toggle{display:none}.mobile-drawer,.drawer-mask{display:none}.site-footer{background:#120B3D;color:#EDEBFF;margin-top:60px;padding:46px 0 20px}.footer-columns{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:32px}.site-footer h2{font-size:17px;color:#fff;margin:0 0 12px}.site-footer a{color:#EDEBFF;display:block;min-height:34px}.footer-brand a{display:inline-block}.footer-brand img{width:auto;height:36px;object-fit:contain}.footer-brand strong{color:#fff;font-size:24px}.footer-brand p{max-width:260px;color:#EDEBFF;font-size:14px}.footer-bottom{border-top:1px solid #ffffff26;margin-top:26px;padding-top:17px;display:flex;justify-content:space-between;gap:25px;font-size:13px}.footer-bottom p{margin:0}.mobile-bottom{display:none}.back-top{position:fixed;right:22px;bottom:24px;width:42px;height:42px;border-radius:50%;background:#5F55F5;color:#fff;border:0;z-index:990;box-shadow:0 5px 18px #231a6833}.hero{padding:54px 0 32px}.hero h1,.page-intro h1{color:#231A68;font-size:38px;line-height:1.3;margin:0 0 18px;letter-spacing:-.6px}.lead{font-size:17px;color:#5F6472;margin:0 0 20px;max-width:850px}.hero-center{text-align:center}.hero-center .lead{margin-inline:auto}.tagline{font-size:13px;font-weight:700;color:#5F55F5;letter-spacing:.08em;margin-bottom:10px}.page-intro{padding:49px 0 30px;background:#F7F8FC}.page-intro p{max-width:910px}.content{padding-top:34px}.reading-section{margin:0 0 30px;padding:0 0 18px;border-bottom:1px solid #ececf6}.reading-section h2,.section-heading{font-size:24px;line-height:1.35;color:#231A68;margin:0 0 15px}.reading-section h3{font-size:19px;color:#231A68;margin:22px 0 8px}.reading-section p{margin:0 0 16px}.reading-section p:last-child{margin-bottom:0}.soft-panel{background:#F7F8FC;border-radius:18px;padding:26px;margin:26px 0}.soft-panel h2{margin-top:0}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:19px}.card{background:#fff;border:1px solid #e8e8f5;border-radius:16px;padding:23px;min-width:0;box-shadow:0 4px 12px #231a6808}.card h2,.card h3{color:#231A68;font-size:20px;margin:0 0 10px}.card p{margin:0 0 12px}.card p:last-child{margin-bottom:0}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#F3F5FF;aspect-ratio:16/9}.media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.placeholder-shape{position:absolute;inset:18%;border-radius:20px;background:linear-gradient(135deg,#EAE7FF,#DFE3FF);opacity:.75}.media-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:23px 0 37px}.media-row .media{height:clamp(160px,18vw,230px);aspect-ratio:auto}.feature-media{margin:4px 0 28px;max-width:650px;height:260px;aspect-ratio:auto}.image-side{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;margin-bottom:32px}.image-side .media{height:245px;aspect-ratio:auto}.pill{display:inline-block;padding:3px 11px;border-radius:100px;background:#F3F5FF;color:#5F55F5;font-size:13px;font-weight:700}.number-list{counter-reset:item;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.number-list .card{counter-increment:item}.number-list .card:before{content:counter(item,decimal-leading-zero);display:block;color:#5F55F5;font-weight:bold;font-size:13px;margin-bottom:9px}.brand-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.brand-card{display:grid;grid-template-columns:190px 1fr;gap:20px;align-items:center}.brand-card .media{height:135px;aspect-ratio:auto}.brand-card h2{font-size:19px;margin:0 0 8px}.brand-card p{margin:0}.related{padding:25px;background:#F3F5FF;border-radius:16px;margin:36px 0}.related h2{font-size:20px;color:#231A68;margin:0 0 8px}.related p{margin:0}.related a{display:inline-block;padding:4px 5px;min-height:40px}.qa{margin:0 0 21px}.qa h3{font-size:18px;color:#231A68;margin:0 0 7px}.qa p{margin:0}.channel-strip{display:flex;flex-wrap:wrap;gap:10px;padding:20px 0}.channel-strip a{display:inline-flex;align-items:center;min-height:40px;border:1px solid #e8e7ff;border-radius:30px;padding:5px 14px;background:#fff}.note{border-left:4px solid #5F55F5;padding:15px 18px;background:#F3F5FF;border-radius:0 12px 12px 0}.minor{color:#5F6472;font-size:14px}
@media(max-width:980px){
.desktop-nav{display:none}.header-inner{height:62px;display:grid;grid-template-columns:minmax(76px,1fr) auto minmax(76px,1fr);gap:5px}.menu-toggle{justify-self:start;display:flex;width:43px;height:43px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:0;background:transparent;padding:7px}.menu-toggle span{display:block;width:22px;height:2px;background:#231A68}.site-logo{justify-self:center;flex:initial}.site-logo img{height:28px;width:auto;max-width:145px}.site-logo strong{font-size:20px}.register-button{justify-self:end;min-width:76px;min-height:36px;padding:5px 10px;font-size:12px}
.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#fff;color:#222;z-index:12000;transform:translateX(-105%);transition:transform .2s ease}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(18,11,61,.42);z-index:11000;opacity:0;pointer-events:none}
.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:13px 18px;border-bottom:1px solid #eee}.drawer-logo img{height:28px;width:auto;object-fit:contain}.drawer-close{font-size:30px;color:#231A68;background:transparent;border:0;width:42px;height:42px}.drawer-nav{overflow-y:auto;max-height:calc(100dvh - 65px);padding:13px 18px 35px}.drawer-nav h2{font-size:14px;color:#5F6472;margin:13px 0 4px}.drawer-nav a{display:block;color:#231A68;padding:7px 8px;min-height:40px;border-radius:8px}.drawer-nav a:hover{background:#F3F5FF}.mobile-bottom{position:fixed;bottom:0;left:0;right:0;z-index:1000;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid #e7e7f7;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;justify-content:center;align-items:center;min-height:54px;font-size:14px;color:#231A68}.mobile-bottom a:last-child{color:#5F55F5;font-weight:700}body{padding-bottom:calc(54px + env(safe-area-inset-bottom))}.back-top{bottom:80px}.footer-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.hero h1,.page-intro h1{font-size:31px}
}
@media(max-width:650px){.container{width:min(100% - 30px,1160px)}.hero{padding:34px 0 20px}.page-intro{padding:31px 0 22px}.hero h1,.page-intro h1{font-size:29px}.lead{font-size:16px}.reading-section h2,.section-heading{font-size:22px}.three-grid,.two-grid,.number-list,.brand-grid,.image-side{grid-template-columns:1fr}.media-row{grid-template-columns:1fr;gap:12px}.media-row .media{height:155px}.image-side .media,.feature-media{height:170px}.brand-card{grid-template-columns:1fr}.brand-card .media{height:155px}.footer-columns{gap:20px}.footer-bottom{display:block}.footer-bottom p{margin-bottom:7px}.soft-panel{padding:19px}.card{padding:18px}}
@media(min-width:651px) and (max-width:980px){.brand-card{grid-template-columns:1fr}.brand-card .media{height:170px}.media-row .media{height:185px}}
@media(max-width:375px){.container{width:calc(100% - 24px)}.site-logo img{max-width:125px}.register-button{font-size:12px}.header-inner{gap:3px}}