:root{--hai-accent:#ff6a3d;--hai-bg:#ffffff;--hai-text:#37352f;--hai-muted:#787774;--hai-border:#ebebea;--hai-tip-bg:#eef6ff;--hai-tip-stripe:#2f80ed;--hai-warn-bg:#fff4e5;--hai-warn-stripe:#f2994a}html{color-scheme:light;background:var(--hai-bg)}.subheading-anchor{opacity:0!important;pointer-events:none!important}body{background:var(--hai-bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}.hai-cover{width:100%;height:180px;border-radius:8px;background:linear-gradient(135deg,#ff9966,#ff5e62 45%,#6a5acd);margin-bottom:-48px}@media (max-width:640px){.hai-cover{height:120px;margin-bottom:-32px}}.hai-home{max-width:760px;margin:0 auto;padding:0 1.5rem 4rem}.hai-home-icon{font-size:4.5rem;line-height:1;background:var(--hai-bg);width:96px;height:96px;display:flex;align-items:center;justify-content:center;border-radius:20px;box-shadow:0 1px 3px rgba(0,0,0,.08)}@media (max-width:640px){.hai-home-icon{font-size:3.25rem;width:72px;height:72px}}.hai-home-title{font-size:2.5rem;font-weight:800;margin:1.25rem 0 .5rem;color:var(--hai-text)}@media (max-width:640px){.hai-home-title{font-size:1.85rem}}.hai-home-subtitle{color:var(--hai-muted);font-size:1.05rem;margin-bottom:2rem}.hai-highlight-boxes{display:grid;grid-template-columns:1fr 1fr;grid-gap:.75rem;gap:.75rem;margin-bottom:2rem}@media (max-width:640px){.hai-highlight-boxes{grid-template-columns:1fr}}.hai-highlight-box{display:block;padding:1rem 1.1rem;border:1px solid var(--hai-border);border-radius:10px;text-decoration:none;color:var(--hai-text);font-weight:600;transition:background .15s ease,border-color .15s ease}.hai-highlight-box:hover{background:#f7f6f3;border-color:#d9d8d5}.hai-divider{border:none;border-top:1px solid var(--hai-border);margin:2rem 0}.hai-category-list{display:flex;flex-direction:column;gap:.15rem}.hai-category-link{display:flex;align-items:center;gap:.65rem;padding:.7rem .5rem;border-radius:8px;text-decoration:none;color:var(--hai-text);font-size:1.05rem;font-weight:500;border-bottom:1px solid transparent}.hai-category-link .hai-emoji{font-size:1.3rem;width:1.6rem;text-align:center}.hai-category-link .hai-label{text-decoration:underline;-webkit-text-decoration-color:var(--hai-border);text-decoration-color:var(--hai-border);text-underline-offset:4px}.hai-category-link:hover{background:#f7f6f3}.hai-category-link:hover .hai-label{-webkit-text-decoration-color:var(--hai-accent);text-decoration-color:var(--hai-accent)}@media (max-width:640px){.hai-category-link{padding:.9rem .5rem;font-size:1.1rem}}.hai-infobox{display:flex;gap:.75rem;padding:.9rem 1.1rem;border-radius:6px;margin:1.25rem 0;border-left:4px solid transparent}.hai-infobox-tip{background:var(--hai-tip-bg);border-left-color:var(--hai-tip-stripe)}.hai-infobox-warning{background:var(--hai-warn-bg);border-left-color:var(--hai-warn-stripe)}.hai-infobox-icon{font-size:1.15rem;line-height:1.5}.hai-infobox-body{flex:1 1;line-height:1.6}.hai-infobox-body p:first-child{margin-top:0}.hai-infobox-body p:last-child{margin-bottom:0}.hai-placeholder{color:var(--hai-muted);font-style:italic}