/* Shared site shell. Homepage, news list, article and 404 all load this file. */
html{scrollbar-width:thin;scrollbar-color:#cbd5e1 #f1f5f9}
#faq-section{scroll-margin-top:96px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#f1f5f9}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:8px;border:2px solid #f1f5f9}
::-webkit-scrollbar-thumb:hover{background:#94a3b8}
.ceeten-site-nav{position:sticky;top:0;z-index:50;flex-shrink:0;border-bottom:1px solid rgba(226,232,240,.6);box-shadow:0 1px 2px rgba(0,0,0,.05);background:rgba(255,255,255,.72)!important;backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px)}
.ceeten-nav-container{max-width:1280px;margin:0 auto;padding:0 16px;box-sizing:border-box}
.ceeten-nav-row{height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.ceeten-nav-start{display:flex;align-items:center;gap:24px;min-width:0}
.ceeten-site-nav a{text-decoration:none}
.ceeten-brand-button{display:flex;align-items:center;flex-shrink:0;padding:0;border:0;border-radius:8px;background:transparent;cursor:pointer;outline-offset:6px}
.ceeten-brand-logo{display:block;width:180px;height:56px;object-fit:contain}
.ceeten-site-nav a:focus-visible,.ceeten-mobile-nav summary:focus-visible,.ceeten-site-footer a:focus-visible{outline:2px solid #8060d3;outline-offset:5px;border-radius:6px}
.ceeten-nav-links{display:flex;align-items:center;gap:40px;color:#334155;font-size:15px;font-weight:900;white-space:nowrap}
.ceeten-nav-link{position:relative;color:inherit;transition:color .18s}
.ceeten-nav-link:hover,.ceeten-nav-link[aria-current=page]{color:#7955cb}
.ceeten-nav-link[aria-current=page]:not(.ceeten-nav-contact):after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:2px;border-radius:2px;background:#7955cb}
.ceeten-nav-contact{padding:10px 24px;border-radius:12px;background:#0f172a;color:#fff;box-shadow:0 8px 15px rgba(15,23,42,.1)}
.ceeten-nav-contact:hover{color:#fff;background:#1e293b}
.ceeten-scholar-promo{display:none;margin-left:32px;padding:0;border:0;background:transparent;cursor:pointer;white-space:nowrap}
.ceeten-scholar-card{display:flex;align-items:center;gap:10px;padding:8px 12px;border:1px solid #393b60;border-radius:12px;background:linear-gradient(120deg,#111a30,#25223e);box-shadow:0 4px 14px rgba(17,26,48,.14);transition:border-color .18s,box-shadow .18s}
.ceeten-scholar-promo:hover .ceeten-scholar-card{border-color:#8070ad;box-shadow:0 6px 18px rgba(35,30,64,.2)}
.ceeten-scholar-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:9px;background:rgba(182,158,238,.12);color:#d2c0f6;flex-shrink:0}
.ceeten-scholar-copy{display:flex;flex-direction:column;align-items:flex-start}
.ceeten-scholar-title{color:#f7f8ff;font-size:15px;font-weight:750;letter-spacing:.01em;line-height:1.2}
.ceeten-scholar-badge{margin-left:3px;padding:5px 7px;border:1px solid rgba(200,181,242,.22);border-radius:6px;background:rgba(182,158,238,.12);color:#e5d9fc;font-size:11px;font-weight:700;line-height:1.2}
.ceeten-scholar-caption{margin-top:4px;color:#bdc6dc;font-size:11px;font-weight:500;line-height:1.3;letter-spacing:0}
.ceeten-scholar-arrow{display:flex;align-items:center;justify-content:center;width:17px;height:17px;color:#c1adea;flex-shrink:0}
.ceeten-mobile-nav{display:none;position:relative}
.ceeten-mobile-nav summary{display:flex;align-items:center;justify-content:center;list-style:none;width:40px;height:40px;padding:8px;border-radius:8px;background:#f1f5f9;color:#1e293b;cursor:pointer}
.ceeten-mobile-nav summary::-webkit-details-marker{display:none}
.ceeten-mobile-panel{position:absolute;right:0;top:52px;width:220px;padding:10px;display:flex;flex-direction:column;gap:4px;border:1px solid #e2e8f0;border-radius:14px;background:#fff;box-shadow:0 14px 35px rgba(15,23,42,.15)}
.ceeten-mobile-panel .ceeten-nav-link{display:block;padding:12px;border-radius:8px;font-size:15px;font-weight:750}
.ceeten-mobile-panel .ceeten-nav-link:after{display:none}
.ceeten-mobile-panel .ceeten-nav-link[aria-current=page]{background:#f5f0ff}
.ceeten-mobile-panel .ceeten-nav-contact{margin-top:4px;text-align:center;color:#fff}
#ceeten-site-footer{margin-top:0!important;padding:48px 20px 28px!important;border-top:1px solid rgba(190,201,220,.16)!important;background:radial-gradient(ellipse at 88% 8%,rgba(133,112,191,.18),transparent 58%),linear-gradient(115deg,#10192f 0%,#1b203b 52%,#29234b 100%)!important;color:#bec9dc!important}
#ceeten-footer-content{display:grid!important;grid-template-columns:minmax(210px,1.1fr) minmax(150px,.8fr) minmax(300px,1.4fr);gap:34px;max-width:1120px!important;padding:0 16px;margin:0 auto;text-align:left!important;box-sizing:border-box}
#ceeten-footer-content>p{align-self:start;margin:0!important;color:#f5f7ff!important;font-size:20px!important;font-weight:900}
#ceeten-footer-content>p:after{content:"论文智能去 AI 痕迹与降重服务";display:block;margin-top:10px;color:#bec9dc;font-size:13px;font-weight:500;line-height:1.8}
#ceeten-footer-content>div:nth-child(2){display:flex!important;flex-direction:column;align-items:flex-start;gap:12px!important;margin:0!important;color:#bec9dc!important}
#ceeten-footer-content>div:nth-child(2):before{content:"快速链接";margin-bottom:4px;color:#f5f7ff;font-size:15px;font-weight:800}
#ceeten-footer-content>div:nth-child(2) a{padding:0;color:#c8d2e4;font-size:13px;font-weight:700;text-decoration:none}
#ceeten-footer-content>div:nth-child(2) a:hover{color:#ddd2ff}
#ceeten-footer-content>div:nth-child(3){align-self:start;color:#bec9dc!important;font-size:12px!important;font-weight:500;opacity:1!important;line-height:1.9}
#ceeten-footer-content>div:nth-child(3):before{content:"版权与备案";display:block;margin-bottom:7px;color:#f5f7ff;font-size:15px;font-weight:800}
#ceeten-footer-content>div:nth-child(3) p{margin:0 0 4px}
#ceeten-footer-content>div:nth-child(3) a{color:#bec9dc!important;text-decoration:underline}
#ceeten-footer-content>div:nth-child(3) a:hover{color:#ddd2ff!important}
#ceeten-site-footer a:focus-visible{outline-color:#c4b5fd}
@media(min-width:640px){.ceeten-nav-container{padding:0 24px}}
@media(min-width:1024px){.ceeten-nav-container{padding:0 32px}.ceeten-scholar-promo{display:block}}
@media(max-width:767px){.ceeten-nav-links{display:none}.ceeten-mobile-nav{display:block}}
@media(max-width:760px){#ceeten-site-footer{padding:36px 18px 24px!important}#ceeten-footer-content{grid-template-columns:1fr 1fr!important;gap:24px 18px!important}#ceeten-footer-content>p{grid-column:1/-1}#ceeten-footer-content>div:nth-child(2){gap:10px!important}#ceeten-footer-content>div:nth-child(3){grid-column:1/-1}}
@media(max-width:420px){.ceeten-brand-logo{width:164px;height:51px}}
@media(prefers-reduced-motion:reduce){.ceeten-scholar-card,.ceeten-nav-link{transition:none}.ceeten-scholar-promo:hover .ceeten-scholar-card{transform:none}}