*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:#F6F8FF;color:#222;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.78;overflow-x:hidden}
.drawer-open{overflow:hidden}
a{color:#3657b7}
img{max-width:100%}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%);box-shadow:0 8px 24px rgba(89,126,247,.10);backdrop-filter:blur(12px)}
.header-inner{max-width:1200px;min-height:72px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.site-logo{display:flex;align-items:center;min-width:142px;text-decoration:none}
.site-logo img,.drawer-logo img,.footer-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}
.logo-placeholder{display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:12px;background:#fff;color:#1D2B5F;font-weight:800;letter-spacing:.04em}
.nav-core{display:flex;align-items:center;gap:8px;white-space:nowrap;flex-wrap:nowrap}
.nav-core a{color:#1D2B5F;padding:8px 10px;border-radius:999px;font-weight:700;text-decoration:none}
.nav-core a.is-current,.nav-core a:hover{background:rgba(255,255,255,.82);color:#597EF7}
.header-actions{display:flex;align-items:center;gap:10px;white-space:nowrap}
.text-login{color:#1D2B5F;text-decoration:none;font-weight:700}
.main-btn{position:relative;overflow:hidden;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%);color:#FFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(89,126,247,.28);white-space:nowrap}
.main-btn::before{content:"";position:absolute;inset:-2px;border-radius:inherit;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.85) 35%,transparent 70%);transform:translateX(-120%);animation:btnShine 2.4s infinite;z-index:-1}
.main-btn::after{content:"";position:absolute;inset:-1px;border-radius:inherit;border:1px solid rgba(255,255,255,.65);box-shadow:0 0 8px rgba(122,196,245,.55),0 0 18px rgba(89,126,247,.35);pointer-events:none}
@keyframes btnShine{0%{transform:translateX(-120%)}55%{transform:translateX(120%)}100%{transform:translateX(120%)}}
.menu-toggle,.mobile-register{display:none}
.channel-strip{background:#fff;border-top:1px solid rgba(89,126,247,.08);border-bottom:1px solid rgba(89,126,247,.08)}
.channel-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}
.channel-inner a{flex:0 0 auto;color:#5B647A;text-decoration:none;font-size:14px;font-weight:700;padding:11px 9px}
.channel-inner a.is-current,.channel-inner a:hover{color:#597EF7}
.site-main{min-height:60vh}
.page-shell{width:min(1200px,calc(100% - 40px));margin-left:auto;margin-right:auto}
.read-shell{width:min(860px,calc(100% - 40px));margin-left:auto;margin-right:auto}
.section{padding:64px 0}
.section.compact{padding:44px 0}
.soft{background:#ECF0FF}
.sky{background:#EAF7FF}
.eyebrow{margin:0 0 10px;color:#597EF7;font-weight:800;letter-spacing:.08em;font-size:14px}
.page-hero{padding:68px 0 42px;background:linear-gradient(180deg,#F6F8FF 0%,#EDF3FF 100%)}
.page-hero .page-shell{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:34px;align-items:center}
.page-hero.simple .page-shell{display:block}
.page-hero h1,.home-title{margin:0 0 18px;color:#1D2B5F;line-height:1.15;font-size:clamp(38px,5vw,50px)}
.lead{font-size:18px;color:#5B647A;max-width:760px}
.meta-note{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:999px;color:#5B647A;font-size:14px}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#ECF0FF;aspect-ratio:16/9}
.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}
.media.content-media{min-height:220px;max-height:260px}
.media.card-media{height:172px;aspect-ratio:auto}
.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#ECF0FF,#EAF7FF);display:flex;align-items:center;justify-content:center}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.panel,.info-card,.topic-card,.faq-item,.notice-bar,.step-item,.compare-box,.quote-card{background:#fff;border:1px solid rgba(89,126,247,.16);box-shadow:0 16px 40px rgba(89,126,247,.10);border-radius:18px}
.panel{padding:28px}
.info-card{padding:24px}
.info-card h2,.panel h2,.compare-box h2,.step-item h3{margin-top:0;color:#1D2B5F}
.topic-card{padding:20px;text-decoration:none;color:#222;min-height:144px;display:flex;flex-direction:column;justify-content:space-between}
.topic-card strong{color:#1D2B5F;font-size:19px}
.topic-card span{color:#5B647A;font-size:14px}
.topic-card:hover{transform:translateY(-2px);border-color:#597EF7}
.text-link{font-weight:800;color:#597EF7;text-decoration:none}
.pill-row{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:thin}
.pill-row a{flex:0 0 auto;text-decoration:none;color:#1D2B5F;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:999px;padding:9px 15px;font-weight:700}
.pill-row a:hover{color:#597EF7}
.observe-bar{background:#fff;border-left:4px solid #597EF7;padding:20px 22px;border-radius:14px;box-shadow:0 12px 30px rgba(89,126,247,.08);color:#5B647A}
.section-title{margin:0 0 28px;color:#1D2B5F;font-size:30px;line-height:1.25}
.section-intro{max-width:820px;color:#5B647A;margin:-14px 0 26px}
.hero-carousel{position:relative;overflow:hidden;background:#101827;border-radius:18px;height:360px;box-shadow:0 18px 48px rgba(16,24,39,.18)}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .45s ease}
.hero-slide.is-active{opacity:1;visibility:visible}
.hero-slide .media{height:100%;aspect-ratio:auto;background:#101827;border-radius:0}
.hero-slide .media>img{object-fit:contain}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.88);color:#1D2B5F;font-size:24px;cursor:pointer}
.hero-prev{left:16px}
.hero-next{right:16px}
.hero-dots{position:absolute;z-index:2;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:8px}
.hero-dot{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer}
.hero-dot.is-active{background:#fff;transform:scale(1.22)}
.home-hero{padding:34px 0 20px}
.home-intro{padding:20px 0 10px}
.app-banner{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:center;padding:32px;border-radius:18px;background:linear-gradient(135deg,#ECF0FF,#EAF7FF);border:1px solid rgba(89,126,247,.16)}
.app-banner h2{margin-top:0;color:#1D2B5F}
.safe-list,.clean-list,.link-list{margin:0;padding-left:22px}
.clean-list li,.safe-list li{margin:8px 0}
.link-list{list-style:none;padding:0}
.link-list li{margin:10px 0}
.link-list a{font-weight:700;text-decoration:none}
.steps{display:grid;gap:14px;counter-reset:step}
.step-item{position:relative;padding:22px 22px 22px 70px;counter-increment:step}
.step-item::before{content:counter(step);position:absolute;left:22px;top:22px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#ECF0FF;color:#597EF7;font-weight:900}
.compare-box{padding:26px}
.timeline{position:relative;margin:0;padding:0;list-style:none}
.timeline::before{content:"";position:absolute;left:15px;top:8px;bottom:8px;width:2px;background:#DCE4FF}
.timeline li{position:relative;padding:0 0 24px 48px}
.timeline li::before{content:"";position:absolute;left:8px;top:8px;width:16px;height:16px;border-radius:50%;background:#597EF7;border:4px solid #ECF0FF}
.faq-list{display:grid;gap:14px}
.faq-item{padding:24px}
.faq-item h2,.faq-item h3{margin:0 0 10px;color:#1D2B5F;font-size:19px}
.quote-card{padding:24px;border-left:4px solid #597EF7}
.mini-links{display:flex;flex-wrap:wrap;gap:10px}
.mini-links a{padding:9px 13px;border-radius:999px;background:#ECF0FF;text-decoration:none;font-weight:700}
.site-footer{background:#1F1F1F;color:#D7DCE8;padding:54px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.site-footer h2{color:#fff;font-size:17px;margin:0 0 14px}
.site-footer a{display:block;color:#D7DCE8;text-decoration:none;margin:7px 0}
.site-footer a:hover{color:#fff}
.footer-brand p{max-width:320px}
.footer-placeholder{background:#2d2d2d;color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:20px;font-size:14px;display:flex;justify-content:space-between;gap:22px}
.floating-tools{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:999;display:flex;flex-direction:column;gap:8px}
.floating-tools>a,.floating-tools>button{width:98px;min-height:40px;padding:8px 10px;border-radius:12px;border:1px solid rgba(89,126,247,.16);background:#fff;color:#3657b7;text-decoration:none;font-weight:800;box-shadow:0 10px 22px rgba(89,126,247,.10);text-align:center;font-family:inherit}
.floating-tools .float-register{color:#fff;border:0;border-radius:999px;height:42px}
.floating-tools button{cursor:pointer}
.mobile-bottom{display:none}
.mobile-drawer,.drawer-mask{display:none}
.tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:#ECF0FF;color:#597EF7;font-size:13px;font-weight:800}
.article-body h2{color:#1D2B5F;margin-top:34px}
.article-body h3{color:#1D2B5F}
.article-body p{font-size:17px}
.article-body ul,.article-body ol{font-size:17px}
.note-box{padding:18px 20px;border-radius:14px;background:#EAF7FF;color:#42506b;border:1px solid rgba(89,126,247,.16)}
.two-tone{background:linear-gradient(90deg,#fff 0 50%,#F7F9FF 50% 100%);border-radius:18px;border:1px solid rgba(89,126,247,.16);overflow:hidden}
.two-tone>div{padding:28px}
.statless{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.statless div{padding:20px;background:#fff;border-radius:16px;border:1px solid rgba(89,126,247,.14)}
.statless strong{display:block;color:#1D2B5F;margin-bottom:6px}
.topic-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.topic-index a{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:16px;padding:18px;text-decoration:none;font-weight:800;color:#1D2B5F}
.topic-index a:hover{color:#597EF7;border-color:#597EF7}
.notice-strip{padding:16px 18px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:14px;color:#5B647A}
.route-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.route-grid article{background:#fff;padding:24px;border-radius:16px;border:1px solid rgba(89,126,247,.16)}
.route-grid h2{font-size:21px;color:#1D2B5F;margin-top:0}
.q-open{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.q-open article{background:#fff;padding:20px;border-radius:16px;border:1px solid rgba(89,126,247,.16)}
.q-open h2{font-size:18px;margin:0 0 8px;color:#1D2B5F}

@media (min-width:1280px){
body{padding-right:68px}
}

@media (max-width:1024px){
.nav-core{gap:2px}
.nav-core a{padding:8px 7px;font-size:14px}
.header-inner{padding:0 14px}
.header-actions{gap:6px}
.main-btn{min-width:88px;padding:0 14px}
.hero-carousel{height:290px}
.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}
.footer-grid{grid-template-columns:1.2fr 1fr 1fr}
.footer-grid>div:last-child{grid-column:2 / 4}
.floating-tools{display:none}
.topic-index{grid-template-columns:repeat(3,minmax(0,1fr))}
}

@media (max-width:900px){
body{padding-bottom:68px}
.site-header{backdrop-filter:none}
.header-inner{min-height:64px;padding:0 12px;gap:10px}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid rgba(89,126,247,.16);border-radius:12px;background:#fff;color:#1D2B5F;font-size:22px;flex:0 0 auto}
.site-logo{position:absolute;left:50%;transform:translateX(-50%);min-width:0;max-width:154px}
.site-logo img{height:34px;max-width:154px}
.nav-core,.header-actions,.channel-strip{display:none}
.mobile-register{display:inline-flex;margin-left:auto;height:40px;min-width:92px;padding:0 12px;font-size:14px}
.mobile-drawer{display:block;position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:12001;transform:translateX(-104%);transition:transform .25s ease;box-shadow:18px 0 48px rgba(29,43,95,.18)}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(16,24,39,.42);z-index:12000;opacity:0;pointer-events:none;transition:opacity .18s ease}
.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
.drawer-head{height:66px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #edf1fa}
.drawer-logo img{height:34px;max-width:154px}
.drawer-close{width:38px;height:38px;border:0;background:#ECF0FF;border-radius:12px;font-size:24px;color:#1D2B5F}
.drawer-scroll{height:calc(100vh - 66px);overflow-y:auto;padding:14px 16px 28px}
.drawer-scroll section{margin-bottom:18px}
.drawer-scroll h2{font-size:13px;color:#8A93A7;margin:0 0 6px;letter-spacing:.08em}
.drawer-scroll a{display:block;padding:9px 4px;color:#1D2B5F;text-decoration:none;font-weight:700}
.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:11000;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(89,126,247,.16);box-shadow:0 -8px 24px rgba(89,126,247,.08);padding-bottom:env(safe-area-inset-bottom)}
.mobile-bottom a{text-align:center;padding:13px 4px;color:#1D2B5F;text-decoration:none;font-size:14px;font-weight:800}
.page-shell,.read-shell{width:min(100% - 28px,1200px)}
.read-shell{width:min(100% - 28px,860px)}
.section{padding:50px 0}
.page-hero{padding:48px 0 32px}
.page-hero .page-shell{grid-template-columns:1fr}
.page-hero h1,.home-title{font-size:clamp(28px,9vw,34px)}
.lead{font-size:16px}
.hero-carousel{height:220px;border-radius:16px}
.hero-arrow{width:38px;height:38px}
.grid-3,.route-grid,.q-open{grid-template-columns:1fr}
.grid-2{grid-template-columns:1fr}
.app-banner{grid-template-columns:1fr;padding:24px}
.footer-grid{grid-template-columns:1fr 1fr}
.footer-grid>div:last-child{grid-column:auto}
.footer-bottom{flex-direction:column}
.two-tone{background:#fff}
.statless{grid-template-columns:1fr}
.topic-index{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:560px){
.hero-carousel{height:190px}
.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.topic-card{min-height:128px;padding:16px}
.topic-card strong{font-size:17px}
.section-title{font-size:26px}
.panel,.info-card,.faq-item{padding:20px}
.footer-grid{grid-template-columns:1fr}
.topic-index{grid-template-columns:repeat(2,minmax(0,1fr))}
.mobile-register{min-width:84px;padding:0 10px}
.site-logo{max-width:142px}
.site-logo img{max-width:142px}
.page-hero .media.content-media{min-height:180px}
.article-body p,.article-body ul,.article-body ol{font-size:16px}
}

@media (prefers-reduced-motion:reduce){
*{scroll-behavior:auto!important}
.main-btn::before{animation:none}
.hero-slide{transition:none}
}