*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#141B22;color:#EEF2F7;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:inherit}img{max-width:100%}button,input,textarea{font:inherit}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(20,27,34,.92);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(0,0,0,.22)}.header-inner{max-width:1180px;min-height:70px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}.site-logo,.drawer-logo,.footer-logo{display:inline-flex;align-items:center;text-decoration:none;flex:0 0 auto}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.drawer-logo img,.footer-logo img{display:block;height:38px;width:auto;max-width:160px;object-fit:contain}.logo-fallback{display:inline-flex;align-items:center;font-weight:800;color:#F4B000;letter-spacing:.08em;white-space:nowrap}.nav-core{display:flex;align-items:center;justify-content:center;gap:3px;min-width:0}.nav-core a{color:#F4B000;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{color:#FFC533;box-shadow:inset 0 -2px 0 #F4B000}.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:#F4B000;color:#141B22;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(244,176,0,.18);white-space:nowrap}.main-btn:hover{background:#FFC533}.menu-toggle{display:none;background:transparent;border:0;width:42px;height:42px;padding:9px;align-items:center;justify-content:center;flex-direction:column;gap:5px}.menu-toggle span{display:block;width:22px;height:2px;background:#F4B000}.channel-bar{background:#1A232D;border-top:1px solid rgba(244,176,0,.08);border-bottom:1px solid rgba(244,176,0,.10)}.channel-inner{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;overflow-x:auto;scrollbar-width:thin}.channel-inner a{flex:0 0 auto;color:#B9C2CF;text-decoration:none;padding:10px 12px;font-size:14px;white-space:nowrap}.channel-inner a:hover{color:#F4B000}.site-main{min-height:60vh;padding-bottom:36px}.container{width:min(1180px,calc(100% - 36px));margin:0 auto}.reading{width:min(840px,calc(100% - 36px));margin:0 auto}.page-hero{padding:48px 0 28px}.page-hero.compact{padding-bottom:12px}.eyebrow{margin:0 0 8px;color:#F4B000;font-weight:800;letter-spacing:.12em;font-size:13px}.page-hero h1,.section-heading h1{font-size:clamp(30px,4.3vw,46px);line-height:1.2;margin:0 0 16px;color:#F4B000}.page-hero p{font-size:18px;color:#D8DEE8;max-width:840px;margin:0}.breadcrumb{font-size:14px;color:#8D98A7;padding-top:20px}.breadcrumb a{color:#B9C2CF;text-decoration:none}.breadcrumb a:hover{color:#F4B000}.section{padding:44px 0}.section.alt{background:#10161C}.section-heading{margin-bottom:22px}.section-heading h2,.content-card h2,.article h2{color:#F4B000;line-height:1.35;margin:0 0 12px;font-size:clamp(24px,3vw,32px)}.section-heading p{margin:0;color:#B9C2CF}.grid-2,.grid-3,.grid-4{display:grid;gap:18px}.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))}.content-card,.link-card,.note-box,.step-item,.faq-item,.topic-link,.article-panel{background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:16px;box-shadow:0 14px 36px rgba(0,0,0,.16)}.content-card,.article-panel{padding:24px}.content-card h2,.content-card h3,.link-card h3,.step-item h3{margin:0 0 10px;color:#F4B000}.content-card p,.article-panel p{margin:0 0 14px;color:#D8DEE8}.content-card p:last-child,.article-panel p:last-child{margin-bottom:0}.link-card{padding:22px;text-decoration:none;transition:transform .16s ease,border-color .16s ease}.link-card:hover,.topic-link:hover{transform:translateY(-2px);border-color:rgba(244,176,0,.42)}.link-card strong,.topic-link strong{display:block;color:#F4B000;margin-bottom:6px}.link-card span,.topic-link span{color:#B9C2CF}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#1A232D;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1A232D,#10161C);border:1px solid rgba(244,176,0,.10);color:#5E6A78;font-weight:800;letter-spacing:.12em}.media.compact-media{height:220px;aspect-ratio:auto}.media.card-media{height:168px;aspect-ratio:auto}.media.banner-media{height:220px;aspect-ratio:auto;max-width:1100px;margin:0 auto}.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center}.split.reverse>.split-media{order:2}.split.reverse>.split-copy{order:1}.split-copy h2{color:#F4B000;font-size:clamp(26px,3.2vw,36px);line-height:1.3;margin:0 0 16px}.split-copy p{color:#D8DEE8;margin:0 0 14px}.text-links{display:grid;gap:10px}.text-links a,.related-links a{display:block;color:#D8DEE8;text-decoration:none;padding:12px 14px;border-radius:12px;background:#222C36;border:1px solid rgba(244,176,0,.10)}.text-links a:hover,.related-links a:hover{color:#F4B000;border-color:rgba(244,176,0,.32)}.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.topic-link{padding:18px;text-decoration:none}.app-strip{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(260px,.9fr);align-items:center;gap:26px;background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:16px;padding:24px}.app-strip h2{color:#F4B000;margin:0 0 10px}.app-strip p{color:#D8DEE8;margin:0 0 12px}.plain-link{color:#F4B000;text-decoration:none;font-weight:700}.plain-link:hover{color:#FFC533}.hero-slider{position:relative;width:min(1180px,calc(100% - 36px));height:360px;margin:28px auto 0;border-radius:16px;background:#1A232D;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.28)}.hero-slide{display:none;position:absolute;inset:0}.hero-slide.is-active{display:block}.hero-slide .media{height:100%;border-radius:0;aspect-ratio:auto}.hero-slide .media-placeholder{border:0}.hero-control{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:44px;height:44px;border-radius:50%;border:1px solid rgba(244,176,0,.38);background:rgba(11,16,21,.72);color:#F4B000;font-size:28px;line-height:1;cursor:pointer}.hero-prev{left:14px}.hero-next{right:14px}.hero-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);z-index:3;display:flex;gap:8px}.hero-dot{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:#6D7783;cursor:pointer}.hero-dot.is-active{background:#F4B000}.article{font-size:17px;color:#D8DEE8}.article p{margin:0 0 18px}.article h2{margin-top:32px}.article ul,.article ol{padding-left:22px}.article li{margin:8px 0}.note-box{padding:20px;margin:24px 0;color:#D8DEE8}.note-box strong{color:#F4B000}.steps{display:grid;gap:14px;counter-reset:step}.step-item{position:relative;padding:20px 20px 20px 66px}.step-item:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#F4B000;color:#141B22;font-weight:800}.compare-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.compare-grid .content-card{height:100%}.mini-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mini-index a{padding:14px 16px;background:#1A232D;border:1px solid rgba(244,176,0,.12);border-radius:12px;text-decoration:none;color:#D8DEE8}.mini-index a:hover{color:#F4B000}.related{padding-top:20px}.related h2{color:#F4B000}.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.faq-list{display:grid;gap:14px}.faq-item{padding:22px}.faq-item h2,.faq-item h3{color:#F4B000;margin:0 0 10px;font-size:20px}.faq-item p{margin:0;color:#D8DEE8}.side-float{position:fixed;right:16px;top:34%;z-index:9000;display:grid;gap:8px;width:52px}.side-float a,.side-float button{writing-mode:vertical-rl;display:flex;align-items:center;justify-content:center;min-height:82px;padding:10px 8px;background:#1A232D;color:#F4B000;border:1px solid rgba(244,176,0,.18);border-radius:10px;text-decoration:none;font-size:13px;cursor:pointer}.side-float .side-register{background:#F4B000;color:#141B22;font-weight:800}.site-footer{background:#0B1015;color:#D8DEE8;padding:52px 0 96px}.footer-grid{width:min(1180px,calc(100% - 36px));margin:0 auto;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:28px}.footer-grid h2{font-size:16px;color:#F4B000;margin:0 0 14px}.footer-grid a{display:block;color:#B9C2CF;text-decoration:none;margin:7px 0}.footer-grid a:hover{color:#F4B000}.footer-brand p{color:#8D98A7;max-width:280px}.footer-bottom{width:min(1180px,calc(100% - 36px));margin:34px auto 0;padding-top:20px;border-top:1px solid rgba(216,222,232,.12);color:#8D98A7;font-size:14px;display:flex;justify-content:space-between;gap:20px}.footer-bottom p{margin:0}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid rgba(244,176,0,.12)}.drawer-close{width:40px;height:40px;border:0;background:#222C36;color:#F4B000;border-radius:50%;font-size:28px;line-height:1}.drawer-scroll{height:calc(100vh - 72px);overflow-y:auto;padding:8px 18px 28px}.drawer-group{padding:14px 0;border-bottom:1px solid rgba(216,222,232,.08)}.drawer-group strong{display:block;color:#F4B000;margin-bottom:8px}.drawer-group a{display:block;color:#D8DEE8;text-decoration:none;padding:8px 0}.legal-strip{border-left:3px solid #F4B000;padding:14px 16px;background:#10161C;color:#B9C2CF;border-radius:0 12px 12px 0}.definition-list{display:grid;gap:14px}.definition-row{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:18px;background:#1A232D;border-radius:14px;border:1px solid rgba(244,176,0,.12)}.definition-row strong{color:#F4B000}.service-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.service-index a{text-decoration:none;background:#1A232D;border:1px solid rgba(244,176,0,.12);border-radius:14px;padding:18px;color:#D8DEE8}.service-index a strong{display:block;color:#F4B000;margin-bottom:6px}.contact-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.contact-flow div{background:#1A232D;border-radius:14px;padding:20px;border:1px solid rgba(244,176,0,.12)}.contact-flow strong{color:#F4B000;display:block;margin-bottom:8px}
@media(max-width:1180px){.side-float{right:8px}.header-inner{padding-right:76px}.channel-inner{padding-right:76px}}
@media(max-width:980px){.header-inner{min-height:64px;padding:0 14px;display:grid;grid-template-columns:52px 1fr auto;gap:8px}.site-logo{justify-self:center}.site-logo img{height:34px;max-width:142px}.nav-core{display:none}.menu-toggle{display:flex}.header-action{height:40px;min-width:84px;padding:0 14px;font-size:14px}.channel-bar{display:none}.side-float{display:none}.site-main{padding-bottom:72px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#1A232D;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(0,0,0,.36)}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(11,16,21,.52);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);background:#141B22;border-top:1px solid rgba(244,176,0,.15);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:58px;color:#D8DEE8;text-decoration:none;font-size:14px}.mobile-bottom a:hover{color:#F4B000}.grid-3,.compare-grid{grid-template-columns:1fr 1fr}.grid-4,.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.split,.app-strip{grid-template-columns:1fr}.split.reverse>.split-media,.split.reverse>.split-copy{order:initial}.hero-slider{height:270px}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.service-index{grid-template-columns:repeat(2,minmax(0,1fr))}.contact-flow{grid-template-columns:1fr}.definition-row{grid-template-columns:1fr}.media.compact-media{height:210px}}
@media(max-width:640px){.container,.reading{width:min(100% - 28px,1180px)}.page-hero{padding:32px 0 18px}.page-hero h1,.section-heading h1{font-size:clamp(26px,8vw,32px)}.page-hero p{font-size:16px}.section{padding:30px 0}.grid-2,.grid-3,.grid-4,.compare-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-slider{width:calc(100% - 28px);height:190px;margin-top:18px}.hero-control{width:38px;height:38px;font-size:24px}.app-strip{padding:18px}.media.compact-media{height:170px}.media.banner-media{height:145px}.media.card-media{height:160px}.article{font-size:16px}.related-links{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.site-footer{padding-top:38px}.header-inner{grid-template-columns:44px 1fr auto}.menu-toggle{width:40px}.header-action{min-width:76px;padding:0 12px}.site-logo img{max-width:128px}.service-index{grid-template-columns:1fr 1fr}.mini-index{grid-template-columns:1fr}}
@media(max-width:390px){.header-action{min-width:70px;padding:0 10px;font-size:13px}.site-logo img{max-width:112px}.logo-fallback{font-size:15px}.topic-grid,.service-index{grid-template-columns:1fr 1fr}.hero-slider{height:170px}}

.subheading{color:#F4B000;font-size:clamp(22px,2.8vw,30px);line-height:1.35;margin:0 0 12px}
.faq-list h3{color:#F4B000;margin:0 0 10px;font-size:20px}

@media(min-width:981px){.site-main{padding-right:64px}}