/* Shared layout repairs, preserving site-specific colors and content. */
@media(max-width:600px){.prod-grid{grid-template-columns:minmax(0,1fr)!important}.prod-grid>a{min-width:0}}
.nf-nav-managed .nav-xsub{min-height:42px!important}body:has(.nf-learning) .ed-toc{position:sticky;top:85px}
.cards-grid .card{min-width:0}.cards-grid .card-btns>a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;text-align:center}.cards-grid .invite-code{min-width:0;overflow-wrap:anywhere}
.nf-has-entry nav.nav{top:var(--nf-entry-height,0px)!important;z-index:9000!important}.nf-has-entry .pbar{top:calc(var(--nf-entry-height,0px) + var(--nh,60px))!important}.nf-has-entry .mobn{top:calc(var(--nf-entry-height,0px) + var(--nh,60px))!important}.nf-has-entry .mob-panel{top:calc(var(--nf-entry-height,0px) + var(--nh,60px))!important}
.nf-nav-managed{top:var(--nf-entry-height,0px)!important;z-index:9000!important}.nf-nav-managed .nav-inner{box-sizing:border-box;max-width:1180px;width:100%;gap:10px;min-height:58px;height:auto;padding-top:8px;padding-bottom:8px;flex-wrap:nowrap}.nf-nav-managed .logo{flex:0 0 auto;margin-right:auto}.nf-nav-managed .nav-links{flex:0 0 auto;align-items:center;gap:2px;min-width:0}.nf-nav-managed .nav-links>a,.nf-nav-managed .nav-label{white-space:nowrap;word-break:keep-all;flex-shrink:0;font-size:13px;line-height:1.5;text-decoration:none}.nf-nav-managed .nav-links>a{padding:8px 9px}.nf-nav-managed .nav-xsub{display:inline-flex!important;align-items:center;min-height:40px;white-space:nowrap;color:var(--accent,#d7a545)!important;border:1px solid var(--accent-border,rgba(180,150,90,.3));border-radius:8px;padding:8px 12px!important;text-decoration:none!important;font-size:12px!important;line-height:1.4!important}.nf-nav-managed .mob-btn{display:none!important}.nf-nav-managed .theme-btn{flex:0 0 42px;margin:0;width:42px;height:42px}.nf-nav-managed>.nav-inner>.nav-link,.nf-nav-managed>.nav-inner>.nav-cta{white-space:nowrap;flex-shrink:0}.nf-nav-more{position:relative;flex:none;font-size:12px;color:var(--text-muted,#9aa0ad)}.nf-nav-more>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:7px;padding:10px;min-height:40px;white-space:nowrap;border-radius:8px}.nf-nav-more>summary::-webkit-details-marker{display:none}.nf-nav-more>summary:after{content:'⌄'}.nf-nav-more[open]>summary{color:var(--accent,#d7a545);background:var(--accent-dim,rgba(180,150,90,.1))}.nf-nav-more>div{position:absolute;right:0;top:calc(100% + 6px);min-width:175px;padding:10px;display:flex;flex-direction:column;gap:7px;background:var(--bg-dropdown,var(--bg-card,#15171d));border:1px solid var(--border,rgba(128,128,128,.3));border-radius:12px;box-shadow:0 15px 45px #0003}.nf-nav-more a{margin:0!important;display:flex!important;align-items:center;justify-content:center;white-space:nowrap;font-size:12px!important;line-height:1.5!important;min-height:42px}.nf-nav-toggle{display:none;flex:none;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--border,#8884);border-radius:8px;background:var(--bg-card,transparent);color:var(--text,#ddd);cursor:pointer}.nf-nav-compact>.nav-links,.nf-nav-compact>.nav-link,.nf-nav-compact>.nav-cta{display:none!important}.nf-nav-compact>.nf-nav-toggle{display:inline-flex}.nf-nav-panel[hidden]{display:none!important}.nf-nav-panel{padding:14px 20px 20px;border-top:1px solid var(--border,#8884);max-height:65dvh;overflow:auto;overscroll-behavior:contain;background:var(--bg-dropdown,var(--bg-card,#15171d));font:13px/1.7 system-ui,sans-serif;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 14px}.nf-nav-panel>a,.nf-nav-panel details a{display:block;min-height:43px;padding:10px 12px;border-radius:7px;color:var(--text-muted,#aaa);text-decoration:none;white-space:normal;overflow-wrap:anywhere}.nf-nav-panel>details{grid-column:1/-1;border-bottom:1px solid var(--border,#8884);padding-bottom:6px}.nf-nav-panel summary{cursor:pointer;min-height:42px;padding:10px 12px;font-weight:600;color:var(--text,#ddd)}.nf-nav-panel details>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.nf-nav-panel a:hover{color:var(--accent,#d7a545);background:var(--accent-dim,#8881)}.nf-nav-managed a:focus-visible,.nf-nav-managed summary:focus-visible,.nf-nav-toggle:focus-visible{outline:2px solid var(--accent,#d7a545);outline-offset:3px}.nf-fixed-sidebar{top:calc(var(--nf-entry-height,0px) + var(--nf-primary-height,60px))!important;height:calc(100dvh - var(--nf-entry-height,0px) - var(--nf-primary-height,60px))!important;overflow-y:auto}.nf-has-entry .anchor-nav{top:calc(var(--nf-entry-height,0px) + var(--nf-primary-height,60px))!important;z-index:8000!important}.nf-has-entry h2[id],.nf-has-entry section[id],.nf-has-entry .section-block[id]{scroll-margin-top:calc(var(--nf-entry-height,0px) + var(--nf-primary-height,60px) + 20px)}
.nf-guide-mini{list-style:none;padding:0!important;margin:20px 0 24px!important;display:flex;gap:8px;flex-wrap:wrap}.nf-guide-mini li{display:flex;align-items:center;gap:7px;font-size:11px;line-height:1.5;color:var(--text-muted);margin:0!important}.nf-guide-mini li:not(:last-child):after{content:'→';margin:0 3px;color:var(--accent)}.nf-guide-mini b{display:grid;place-items:center;width:21px;height:21px;border:1px solid var(--accent-border);border-radius:50%;font-size:10px;color:var(--accent)}.nf-learning{font-size:15px;line-height:1.9}.nf-learning p{color:var(--text-muted);margin:0 0 18px}.nf-learning-intro{border:1px solid var(--accent-border);background:linear-gradient(120deg,var(--accent-dim),var(--bg-card));border-radius:16px;padding:26px;margin-bottom:26px}.nf-learning-intro>span{font-size:10px;color:var(--accent);letter-spacing:.14em}.nf-learning-intro h2{font-size:24px!important;line-height:1.5!important;margin:12px 0!important}.nf-learning-intro p{font-size:13px;line-height:1.9;margin:0}.nf-learning-map{list-style:none!important;padding:0!important;margin:22px 0 0!important;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px}.nf-learning-map li{margin:0!important}.nf-learning-map a{display:flex;flex-direction:column;gap:8px;align-items:flex-start;padding:13px 10px;min-height:94px;border:1px solid var(--border);border-radius:10px;background:var(--bg-card);text-decoration:none!important;color:var(--text)!important;font-size:12px;line-height:1.6}.nf-learning-map b{font-size:10px;letter-spacing:.08em;color:var(--accent)}.nf-learning-step{position:relative;margin:0 0 22px;border:1px solid var(--border);border-radius:14px;padding:26px;background:var(--bg-card)}.nf-step-head{display:flex;align-items:center;gap:15px;margin-bottom:18px}.nf-step-number{flex:none;display:grid;place-items:center;width:43px;height:43px;border-radius:11px;background:var(--accent-dim);color:var(--accent);font-size:15px;font-weight:700}.nf-step-head small{font-size:10px;color:var(--text-muted);letter-spacing:.08em}.nf-step-head h2{font-size:21px!important;line-height:1.5!important;margin:2px 0 0!important}.nf-learning-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:18px 0}.nf-learning-options a{display:flex;flex-direction:column;align-items:flex-start;gap:7px;padding:17px;border:1px solid var(--border);border-radius:10px;text-decoration:none!important;color:var(--text)!important;font-size:14px}.nf-learning-options span{color:var(--text-muted);font-size:12px;line-height:1.8}.nf-learning-options a:after{content:'进入专题 ↗';font-size:11px;color:var(--accent);margin-top:auto;padding-top:8px}.nf-learning-result{margin:18px 0 0!important;padding:12px 15px;border-left:2px solid var(--accent);background:var(--accent-dim);font-size:12px;line-height:1.9}.nf-learning-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.nf-learning-actions a{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border:1px solid var(--accent-border);border-radius:9px;background:var(--accent-dim);color:var(--accent);font-size:12px;text-decoration:none!important}.nf-learning-actions a:first-child{background:var(--accent);color:#17130b;border-color:var(--accent);font-weight:650}.nf-learning a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media(max-width:700px){.nf-nav-managed .nav-inner{padding-left:16px;padding-right:16px;gap:8px}.nf-nav-managed .logo{font-size:15px}.nf-nav-panel{padding-left:12px;padding-right:12px}.nf-learning-intro,.nf-learning-step{padding:21px 18px}.nf-learning-map{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.nf-learning-map a{min-height:72px;flex-direction:row;gap:12px;align-items:center}.nf-learning-map li:last-child{grid-column:1/-1}.nf-learning-options{grid-template-columns:1fr}.nf-learning-intro h2{font-size:22px!important}.nf-step-head h2{font-size:19px!important}.nf-learning{font-size:14px}.nf-guide-mini{gap:8px 4px}.nf-learning-actions>a{flex:1 1 140px}}

/* Footer support actions share a real container and remain tappable on mobile. */
.nf-footer-actions{box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;max-width:1080px;margin:0 auto;padding:24px 20px 8px}.nf-footer-actions>a{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:10px 18px;border:1px solid var(--border,rgba(128,128,128,.3));border-radius:10px;background:var(--bg-card,#161b24);color:var(--text,#e8edf5);font:600 14px/1.5 system-ui,sans-serif;text-decoration:none;white-space:nowrap;box-sizing:border-box}.nf-footer-actions>a:hover{border-color:var(--accent,#e6b960);color:var(--accent,#e6b960)}.nf-footer-actions>a:focus-visible{outline:2px solid var(--accent,#e6b960);outline-offset:3px}@media(max-width:480px){.nf-footer-actions>a{flex:1 1 140px}.nf-footer-actions{padding:20px 16px 8px;gap:10px}}