*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:#252B3A;background:#fff;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}a:hover{color:#315CFF}button{font:inherit;cursor:pointer}img{max-width:100%}.wrap{width:min(1160px,calc(100% - 48px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);box-shadow:0 2px 16px rgba(23,33,58,.06)}.nav-main{height:70px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;flex:0 0 auto}.brand img{height:36px;width:auto;max-width:150px;object-fit:contain}.wordmark{color:#315CFF;font-weight:900;font-size:25px;letter-spacing:-1px;white-space:nowrap}.desktop-nav{display:flex;gap:24px;align-items:center;margin:auto;white-space:nowrap;font-size:15px}.desktop-nav a{height:70px;display:flex;align-items:center;border-bottom:2px solid transparent}.is-active{color:#315CFF!important}.desktop-nav a.is-active{border-bottom-color:#315CFF}.main-btn{display:inline-flex;justify-content:center;align-items:center;height:40px;min-width:80px;padding:0 18px;background:#315CFF;color:white!important;border-radius:999px;font-weight:700;white-space:nowrap}.channel-strip{background:#F5F7FB}.channel-links{display:flex;align-items:center;height:44px;overflow-x:auto;gap:0;scrollbar-width:thin;white-space:nowrap}.channel-links a{font-size:14px;color:#5F6B82;padding:0 16px;border-left:1px solid rgba(49,92,255,.14)}.channel-links a:first-child{padding-left:0;border:0}.menu-toggle{display:none}.mobile-drawer,.drawer-mask{display:none}.hero{padding:38px 0 12px}.hero h1{font-size:36px;line-height:1.35;color:#17213A;margin:0 0 18px}.lead{font-size:17px;color:#5F6B82;max-width:810px}.section{padding:34px 0}.section-title{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}.section-title h2{font-size:25px;color:#17213A;line-height:1.4;margin:0}.section-title a,.more{font-size:14px;color:#315CFF;font-weight:700}.grid-2,.grid-3,.grid-4{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.panel,.card{border:1px solid rgba(49,92,255,.14);border-radius:14px;background:#fff;padding:22px;min-width:0}.panel.soft,.soft{background:#F5F7FB}.panel.blue{background:#EEF4FF}.card h3,.panel h3{font-size:19px;margin:0 0 10px;color:#17213A;line-height:1.4}.card p,.panel p{color:#5F6B82;margin:0 0 12px}.card a.more{display:inline-block;margin-top:6px}.intro-grid{display:grid;grid-template-columns:3fr 2fr;gap:35px;align-items:start}.intro-grid p{max-width:700px}.pill-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.pill-links a{background:#EEF4FF;padding:10px 12px;border-radius:10px;color:#315CFF;font-weight:600}.split{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:30px}.article-main{width:min(800px,100%);margin:0 auto}.article-main h2{font-size:23px;color:#17213A;line-height:1.4;margin:32px 0 12px}.article-main p{line-height:1.85;margin:0 0 17px}.article-main h3{color:#17213A}.article-top{padding:36px 0 14px;border-bottom:1px solid rgba(49,92,255,.14)}.article-top h1{font-size:32px;line-height:1.4;color:#17213A;margin:0 0 14px}.eyebrow{font-size:13px;color:#315CFF;font-weight:700;letter-spacing:1px}.article-layout{padding:24px 0 45px}.article-side{margin-top:30px}.article-side h2{font-size:22px;color:#17213A}.article-side a{display:inline-block;margin:8px 10px 8px 0;color:#315CFF}.number-list{counter-reset:story;padding:0;list-style:none}.number-list li{counter-increment:story;padding:16px 0;border-bottom:1px solid #e8edf8;display:flex;gap:14px}.number-list li:before{content:counter(story,decimal-leading-zero);font-weight:800;color:#315CFF}.number-list li a{font-weight:700}.media{display:flex;justify-content:center;align-items:center;max-width:100%;min-width:0;border-radius:12px;overflow:hidden;background:#EEF4FF}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-natural img{width:100%;height:auto;max-height:280px;object-fit:contain}.media-banner{aspect-ratio:16/7}.media-banner img{max-height:320px}.media-square{aspect-ratio:1}.media-portrait{aspect-ratio:3/4}.media-device{aspect-ratio:9/16;max-height:330px}.media-placeholder{min-height:125px}.media-banner.media-placeholder{min-height:175px}.figure-card{padding:14px;border:1px solid #e6ecfb;border-radius:13px}.figure-card h3{font-size:17px;margin:12px 0 5px}.figure-card p{font-size:14px;color:#5F6B82;margin:0}.slider{position:relative;background:#EEF4FF;border-radius:14px;overflow:hidden;min-height:160px;max-height:320px}.slide{display:none}.slide.is-current{display:block}.slide .media{border-radius:0;min-height:160px;max-height:320px}.slide img{max-height:320px}.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;border:0;border-radius:50%;background:rgba(23,33,58,.5);color:#fff;width:34px;height:34px}.slider-prev{left:12px}.slider-next{right:12px}.slider-dots{position:absolute;bottom:10px;left:0;right:0;display:flex;gap:8px;justify-content:center}.slider-dots button{width:10px;height:10px;border:0;border-radius:50%;background:#a9b7df;padding:0}.slider-dots button.is-current{background:#315CFF}.slider.has-one .slider-arrow,.slider.has-one .slider-dots{display:none}.footer{background:#101828;color:#D8E0F2;margin-top:30px;padding:48px 0 22px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}.footer a{display:block;color:#D8E0F2;margin:8px 0;font-size:14px}.footer .footer-brand{font-size:23px;font-weight:800;color:white}.footer-brand img{max-width:140px;max-height:38px;object-fit:contain}.footer p{font-size:14px;max-width:330px}.footer h2{font-size:16px;color:#fff;margin:0 0 16px}.footer-bottom{border-top:1px solid #394254;padding-top:22px;margin-top:25px;display:flex;justify-content:space-between;gap:20px;font-size:13px}.bottom-nav{display:none}.to-top{position:fixed;right:20px;bottom:22px;background:#315CFF;color:white;border:0;border-radius:50%;height:42px;width:42px;z-index:200;opacity:0;pointer-events:none}.to-top.visible{opacity:1;pointer-events:auto}.faq-item{padding:16px 0;border-bottom:1px solid #e7ecf6}.faq-item h3{font-size:18px;margin:0 0 8px}.faq-item p{margin:0}.note{background:#EEF4FF;border-left:3px solid #315CFF;padding:14px 18px;border-radius:8px;margin:20px 0}
@media(max-width:1100px){.desktop-nav{gap:14px}.nav-main{gap:13px}.desktop-nav a{font-size:14px}}
@media(max-width:980px){.wrap{width:calc(100% - 40px)}.nav-main{height:58px;justify-content:space-between;gap:10px}.desktop-nav{display:none}.menu-toggle{display:block;border:0;background:none;font-size:24px;padding:2px 8px;color:#17213A}.brand img{height:29px}.main-btn{height:36px;min-width:68px;padding:0 12px;font-size:14px}.channel-links{height:43px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100vh;height:100dvh;overflow-y:auto;background:#fff;z-index:12000;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .2s ease,visibility .2s}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-mask{display:block;position:fixed;inset:0;background:rgba(16,24,40,.42);z-index:11000;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s}.drawer-mask.is-visible{opacity:1;visibility:visible;pointer-events:auto}body.drawer-open{overflow:hidden}.drawer-top{padding:14px 17px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e8edf8}.drawer-close{border:0;background:transparent;color:#17213A;font-size:30px}.drawer-group{padding:13px 18px;border-bottom:1px solid #edf0f8}.drawer-group strong{display:block;font-size:13px;color:#8A95AA;margin:3px 0 7px}.drawer-group a{display:block;padding:7px 3px;min-height:40px}.bottom-nav{position:fixed;z-index:900;bottom:0;left:0;right:0;height:60px;display:grid;grid-template-columns:repeat(4,1fr);align-items:center;text-align:center;background:#fff;box-shadow:0 -2px 16px rgba(20,32,70,.1)}.bottom-nav a{font-size:14px;font-weight:600}.footer{padding-bottom:83px}.to-top{bottom:75px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero h1{font-size:30px}}
@media(max-width:700px){.wrap{width:calc(100% - 32px)}.grid-2,.grid-3,.grid-4,.split,.intro-grid{grid-template-columns:1fr}.six-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.figure-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.panel,.card{padding:17px}.section{padding:26px 0}.section-title h2{font-size:21px}.hero{padding-top:25px}.hero h1{font-size:27px}.article-top h1{font-size:26px}.article-main h2{font-size:21px}.lead{font-size:16px}.footer-bottom{flex-direction:column}.slider,.slide .media{max-height:200px}.slide img{max-height:200px}.media-banner.media-placeholder{min-height:145px}}
@media(max-width:375px){.six-grid,.figure-grid{grid-template-columns:1fr}.channel-links a{padding:0 11px;font-size:13px}.wordmark{font-size:21px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
