:root{--section-paper:#f5f1e8;--section-ink:#101a33;--section-muted:#66707b;--section-rule:#cbc5b8;--section-blue:#174ebf;--section-green:#17694b;--section-rust:#9a4d24;--section-serif:"Noto Serif SC","Songti SC",SimSun,serif;--section-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.section-page{margin:0;background:var(--section-paper);color:var(--section-ink);font-family:var(--section-sans);font-size:16px;line-height:1.75;overflow-wrap:anywhere}
.section-page main,.section-page .container,.section-page .course-wrap,.section-page .kb-container{width:min(1180px,calc(100% - 56px));margin-inline:auto}
.section-page h1,.section-page h2,.section-page h3{font-family:var(--section-serif);color:var(--section-ink);text-wrap:balance}
.section-page h1{font-size:clamp(2.75rem,6vw,5.7rem);line-height:1.02;letter-spacing:-.055em}
.section-page h2{font-size:clamp(1.45rem,2.3vw,2.35rem);line-height:1.25}
.section-page h3{font-size:clamp(1.08rem,1.6vw,1.42rem);line-height:1.38}
.section-page a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.24em;transition:color .2s ease,transform .2s ease}
.section-page a:hover{color:var(--section-blue)}
.section-page a:focus-visible,.section-page button:focus-visible,.section-page input:focus-visible{outline:3px solid color-mix(in srgb,var(--section-blue) 72%,white);outline-offset:3px}
.section-page time,.section-page .meta,.section-page .n{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.04em}
.section-page img{max-width:100%;height:auto}
.section-page .site-footer-compliance,.section-footer{border-top:1px solid var(--section-rule);margin-top:6rem;padding:1.5rem 28px;text-align:center;color:var(--section-muted);font-size:.82rem}
.section-page .site-footer-compliance a,.section-footer a{text-decoration:none}
.section--hardware{--section-blue:#244f88}
.section--embodied{--section-blue:#9a4d24}
.section--courses{--section-blue:#174ebf}
.section--blog{--section-blue:#315b82}
.section--knowledge{--section-blue:#17694b}
.section--courses .c-hero,.section--blog .forum-head,.section--knowledge .kb-hero{padding:clamp(4rem,8vw,7.5rem) 0 clamp(2.8rem,5vw,5rem);border-bottom:1px solid var(--section-rule);background:transparent}
.section--courses .cards{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:0;border-top:1px solid var(--section-rule)}
.section--courses .card{border:0;border-bottom:1px solid var(--section-rule);border-radius:0;background:transparent;box-shadow:none;padding:2.2rem 2rem 2.5rem 0}
.section--courses .card:nth-child(even){padding-left:2rem;border-left:1px solid var(--section-rule)}
.section--courses .pill{border:0;border-radius:0;background:transparent;color:var(--section-blue);padding:0;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase}
.section--blog .forum-head{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:2rem}
.section--blog .list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--section-rule)}
.section--blog .article-card{border:0;border-bottom:1px solid var(--section-rule);border-radius:0;background:transparent;box-shadow:none;padding:2rem 2rem 2.4rem 0}
.section--blog .article-card:nth-child(even){padding-left:2rem;border-left:1px solid var(--section-rule)}
.section--blog .tag{border:0;border-radius:0;background:transparent;color:var(--section-blue);padding:0}
.section--knowledge .kb-search-wrap{background:transparent;border:1px solid var(--section-rule);border-radius:0;box-shadow:none}
.section--knowledge .wiki{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
.section--knowledge .wsec{border:0;border-top:1px solid var(--section-rule);border-radius:0;background:transparent;box-shadow:none;padding:2rem 2rem 2.5rem 0}
.section--knowledge .wsec:nth-child(even){padding-left:2rem;border-left:1px solid var(--section-rule)}
.section--hardware .archive-hero,.section--embodied .archive-hero{border-bottom:1px solid var(--section-rule)}
@media(max-width:972px){.section-page main,.section-page .container,.section-page .course-wrap,.section-page .kb-container{width:min(100% - 40px,900px)}.section--courses .cards,.section--blog .list,.section--knowledge .wiki{grid-template-columns:1fr}.section--courses .card:nth-child(even),.section--blog .article-card:nth-child(even),.section--knowledge .wsec:nth-child(even){padding-left:0;border-left:0}.section--blog .forum-head{grid-template-columns:1fr}}
@media(max-width:768px){body.section-page{font-size:15px}.section-page main,.section-page .container,.section-page .course-wrap,.section-page .kb-container{width:calc(100% - 28px)}.section-page h1{font-size:clamp(2.45rem,14vw,4rem)}.section--courses .c-hero,.section--blog .forum-head,.section--knowledge .kb-hero{padding-top:3.2rem}.section--courses .card,.section--blog .article-card,.section--knowledge .wsec{padding:1.5rem 0 1.8rem}.section-page .site-footer-compliance,.section-footer{margin-top:4rem;padding-inline:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.section-page *{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}

/* Night mode -- see archive-index.css for why this was missing. */
[data-theme="dark"]{--section-paper:#0c0d12;--section-ink:#e7e8ef;--section-muted:#9aa0ad;--section-rule:#2a2e38;--section-blue:#7aa7ff;--section-green:#5fd39b;--section-rust:#e0925c}