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130px);overflow:auto}.toc-head{display:flex;align-items:center;gap:12px;padding-bottom:15px;border-bottom:1px solid rgba(255,255,255,.16)}.toc-icon{display:grid;place-items:center;width:40px;height:40px;background:var(--blue);border-radius:12px;font-size:1.4rem}.toc-head div{display:grid}.toc-head small{color:#9ddfff}.toc-head strong{font-size:1.18rem}.toc-panel nav{display:grid;margin:13px 0}.toc-panel nav a{display:block;color:#d8f1ff;text-decoration:none;padding:8px 10px;border-left:2px solid rgba(255,255,255,.12);font-size:.92rem;line-height:1.45}.toc-panel nav a.sub{padding-left:22px;color:#aadcf5;font-size:.84rem}.toc-panel nav a:hover,.toc-panel nav a.current{color:#fff;background:rgba(0,166,255,.18);border-left-color:var(--blue)}.toc-top{display:block;color:#fff;text-align:center;text-decoration:none;background:rgba(255,255,255,.09);padding:10px;border-radius:10px}.site-footer{background:#052b42;color:#d5effd;padding:48px 24px 18px}.footer-inner{max-width:1240px;margin:auto;display:grid;grid-template-columns:280px 1fr;gap:55px}.footer-brand img{display:block}.footer-brand p{color:#9bc7dd}.footer-menu{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 28px}.footer-menu a{color:#d5effd;text-decoration:none;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.1)}.footer-menu a:hover,.footer-menu a.active{color:#58c8ff}.copyright{max-width:1240px;margin:38px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.13);color:#82b3ca;font-size:.88rem;text-align:center}@media(max-width:1050px){.content-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:900px){.page-shell{grid-template-columns:1fr}.toc-panel{position:relative;top:0;grid-row:1;max-height:none}.footer-inner{grid-template-columns:1fr}.article-content{padding:28px 24px 42px}}@media(max-width:680px){.content-grid--2,.content-grid--3{grid-template-columns:1fr}.content-panel{padding:19px}}@media(max-width:600px){.header-inner{min-height:68px;padding:0 18px}.brand img{width:138px}.page-shell{margin-top:24px;padding:0 14px}.article-card{border-radius:20px}.article-kicker{padding:14px 20px;flex-direction:column;gap:0}.article-content{padding:24px 20px 36px}.article-content h1{font-size:2rem}.article-content h2{font-size:1.4rem;margin-top:2.6rem}.footer-menu{grid-template-columns:1fr}.footer-inner{gap:25px}}