.academy-search{position:relative;display:flex;align-items:center;max-width:520px;margin-top:1.6rem}
.academy-search .ic{position:absolute;left:1rem;width:1.15rem;height:1.15rem;color:var(--muted);pointer-events:none}
.academy-search input{width:100%;min-height:54px;padding:.8rem 1rem .8rem 2.9rem;border:1px solid var(--line-strong);border-radius:var(--r-pill);background:#fff;font:inherit;font-size:1rem;color:var(--ink);box-shadow:var(--shadow-md)}
.academy-search input:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-color:var(--brand)}
.academy-search input::placeholder{color:#576383;opacity:1}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.guide-empty{margin-top:1.4rem;text-align:center;color:var(--muted)}
.guide-all{margin-top:1.8rem;text-align:center}
.article-hero{position:relative;overflow:clip;padding:2.5rem 0 2.25rem;background:linear-gradient(180deg,var(--bg-deep),var(--bg));border-bottom:1px solid #D3DCEE}
.article-hero>.shell{position:relative;z-index:1}
.article-hero-inner{max-width:860px}
.article-hero-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:1.25rem;margin-top:1.1rem}
.article-hero-text{min-width:0}
.article-cat{display:inline-flex;align-items:center;gap:.4rem;margin:1.2rem 0 .8rem;padding:.3rem .8rem;border-radius:var(--r-pill);font-size:.8rem;font-weight:700}
.article-cat:hover{text-decoration:none}
.article-cat .ic{width:.95rem;height:.95rem}
.article-hero h1{margin-bottom:.8rem;font-size:clamp(1.8rem,4vw,2.7rem);font-weight:800;line-height:1.15}
.article-hero .lede{margin-inline:0;max-width:64ch}
.meta-by{display:inline-flex;align-items:center;gap:.4rem}
.meta-by img{width:20px;height:20px;border-radius:50%;object-fit:cover}
.meta-by strong{color:var(--ink)}
.takeaways-title{display:flex;align-items:center;gap:.45rem;margin-bottom:.6rem;font-size:.82rem;font-weight:800;color:var(--brand-dark)}
.takeaways-title .ic{width:1rem;height:1rem}
.callout .callout-title{margin-bottom:.3rem;font-size:.8rem;font-weight:800}
.callout-good{background:var(--green-wash);border-color:#BFE5D7}
.callout-good .callout-title{color:var(--green)}
.callout-bad{background:#FDECEC;border-color:#F4C7C3}
.callout-bad .callout-title{color:#B42318}
.toc-all{display:inline-flex;align-items:center;gap:.35rem;margin-top:.7rem;font-size:.84rem;font-weight:700;color:var(--brand-dark)}
.toc-all .ic{width:.9rem;height:.9rem;transition:translate .2s}
.callout-brand{background:var(--brand-wash);border-color:#BFD3F0}
.callout-brand .callout-title{color:var(--brand-dark)}
.article-pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--line-soft)}
.pager-link{display:flex;flex-direction:column;gap:.2rem;padding:1rem 1.1rem;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;color:var(--ink)}
.pager-link:hover{border-color:var(--brand);color:var(--ink);text-decoration:none;box-shadow:var(--shadow-md)}
.pager-link small{font-size:.76rem;font-weight:700;color:var(--muted)}
.pager-link strong{font-size:.95rem;line-height:1.35}
@media (max-width:960px){.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.academy-search input{font-size:.95rem}.guide-grid{grid-template-columns:minmax(0,1fr)}.article-pager{grid-template-columns:minmax(0,1fr)}}
.track-pill{display:inline-flex;align-items:center;gap:.4rem;margin:0 0 .8rem;padding:.3rem .8rem;border-radius:var(--r-pill);font-size:.8rem;font-weight:700}
.track-pill .ic{width:.95rem;height:.95rem}
.acad-tabs{display:flex;gap:6px;width:max-content;max-width:100%;margin:0 auto 1.6rem;padding:5px;border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;box-shadow:var(--shadow-sm)}
.acad-tabs[hidden]{display:none}
.acad-tabs button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:44px;padding:.5rem 1.1rem;border:0;border-radius:var(--r-pill);background:none;font:inherit;font-size:.95rem;font-weight:700;color:var(--muted);white-space:nowrap;cursor:pointer;transition:background-color .15s,color .15s}
.acad-tabs button .ic{width:1.1rem;height:1.1rem}
.acad-tabs button:hover{background:var(--brand-wash);color:var(--brand-dark)}
.acad-tabs button[aria-selected="true"]{background:var(--brand);color:#fff}
.acad-tabs button:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
.acad-count{display:grid;place-items:center;min-width:24px;height:22px;padding:0 .45rem;border-radius:var(--r-pill);background:var(--surface);color:var(--muted);font-size:.75rem;font-weight:800}
.acad-tabs button[aria-selected="true"] .acad-count{background:rgba(255,255,255,.2);color:#fff}
.acad-intro{max-width:66ch;margin:0 auto 2rem;text-align:center;color:var(--muted)}
.acad-panel .guide-grid{margin-bottom:2.5rem}
.topic-ic{display:grid;place-items:center;flex:none;width:44px;height:44px;border-radius:14px}
.topic-ic .ic{width:1.25rem;height:1.25rem}
.result-list{display:flex;flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none}
.result-list li[hidden]{display:none}
.result-list a{display:flex;align-items:center;gap:.9rem;padding:.8rem 1rem;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;color:var(--ink)}
.result-list a:hover{border-color:#BFD3F0;box-shadow:var(--shadow-md);text-decoration:none;color:var(--ink)}
.result-text{display:flex;flex-direction:column;min-width:0}
.result-text strong{font-size:.98rem;font-weight:700;line-height:1.35}
.result-text small{font-size:.8rem;color:var(--muted)}
.result-arrow{flex:none;width:1rem;height:1rem;margin-left:auto;color:var(--muted)}
@media (max-width:640px){.acad-tabs{width:100%}.acad-tabs button{flex:1 1 0;min-width:0;padding-inline:.6rem;font-size:.88rem}}
a.meta-by{color:inherit;text-decoration:none;border-radius:999px;transition:color .2s}
a.meta-by:hover strong,a.meta-by:focus-visible strong{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.author-hero{padding-bottom:2.6rem}
.author-grid{display:grid;grid-template-columns:320px minmax(0,1fr);grid-template-areas:"photo card" "photo stats";gap:1rem;margin-top:1.4rem}
.author-photo{grid-area:photo;position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);background:linear-gradient(160deg,#E6EEFA,#fff);box-shadow:var(--shadow-md);aspect-ratio:1/1;align-self:start}
.author-photo img{display:block;width:100%;height:100%;object-fit:cover}
.author-card{grid-area:card;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:1.6rem 1.7rem;box-shadow:var(--shadow-sm)}
.author-card h1{margin:0;font-size:clamp(1.8rem,3.4vw,2.4rem);line-height:1.15}
.author-role{margin:.35rem 0 1rem;font-weight:800;color:var(--brand)}
.author-card p.author-links{margin:-.4rem 0 1rem}
.author-in{display:inline-flex;align-items:center;gap:.45rem;padding:.42rem .85rem;border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;font-size:.88rem;font-weight:700;color:#0A66C2;transition:border-color .2s,background .2s}
.author-in:hover{border-color:#0A66C2;background:#EEF5FC;color:#0A66C2;text-decoration:none}
.author-in .ic{width:1.05rem;height:1.05rem;fill:currentColor;stroke:none}
.author-ti{display:inline-grid;place-items:center;width:1.9rem;height:1.9rem;margin-right:.6rem;border-radius:9px;background:var(--brand-wash);color:var(--brand);vertical-align:middle}
.author-ti .ic{width:1rem;height:1rem}
.author-topics .author-li-m{margin-left:2.5rem}
.author-card p:not(.author-role){margin:0 0 .8rem;line-height:1.7;color:var(--ink)}
.author-card p:last-child{margin-bottom:0}
.author-stats{grid-area:stats;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.author-stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:1.1rem 1.3rem;box-shadow:var(--shadow-sm)}
.author-stat strong{display:block;font-size:1.9rem;line-height:1.1;font-weight:800;color:var(--brand-dark)}
.author-stat span{display:block;margin-top:.3rem;font-size:.74rem;font-weight:800;color:var(--muted)}
.author-band{padding-top:2.4rem}
.author-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:2rem;align-items:start}
.author-h{margin:0 0 1rem;font-size:1.25rem;font-weight:800}
.author-list{list-style:none;margin:0;padding:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.author-list li+li{border-top:1px solid var(--line)}
.author-list a{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.2rem 1rem;padding:.95rem 1.2rem;color:var(--ink);transition:background .2s}
.author-list a:hover{background:var(--brand-wash);text-decoration:none}
.author-li-t{font-weight:700;line-height:1.4}
.author-li-m{grid-column:1;font-size:.82rem;color:var(--muted)}
.author-list .ic{grid-column:2;grid-row:1/3;width:1rem;height:1rem;color:var(--brand);transition:translate .2s}
.author-pager{display:flex;flex-wrap:wrap;gap:.4rem;justify-content:center;margin-top:1.2rem}
.author-pager a,.author-pager span{display:grid;place-items:center;min-width:2.4rem;height:2.4rem;padding:0 .6rem;border-radius:10px;border:1px solid var(--line);background:#fff;font-weight:700;color:var(--ink)}
.author-pager a:hover{border-color:var(--brand);text-decoration:none}
.author-pager span{background:var(--brand);border-color:var(--brand);color:#fff}
.author-aside{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:1.4rem;box-shadow:var(--shadow-sm)}
.author-rules{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.85rem}
.author-rules li{display:flex;gap:.6rem;font-size:.92rem;line-height:1.55}
.author-rules .ic{flex:none;width:1.1rem;height:1.1rem;margin-top:.15rem;color:var(--green)}
.author-fix{margin:1.1rem 0 0;padding-top:1rem;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
@media (max-width:900px){.author-grid{grid-template-columns:minmax(0,1fr);grid-template-areas:"photo" "card" "stats"}.author-photo{max-width:260px}.author-layout{grid-template-columns:minmax(0,1fr)}.author-aside{position:static}}
@media (max-width:520px){.author-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}.author-stat{padding:.85rem .7rem}.author-stat strong{font-size:1.5rem}.author-stat span{font-size:.64rem;letter-spacing:.04em}.author-card{padding:1.25rem}}
@media (max-width:400px){.acad-tabs button{gap:.35rem;padding-inline:.4rem}.acad-tabs button .ic{display:none}}
.toc-head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.85rem}
.toc-head .toc-title{margin:0;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.toc-pct{display:inline-flex;align-items:center;justify-content:center;min-width:3.1em;padding:.18rem .5rem;border-radius:999px;background:var(--brand-wash);color:var(--brand-dark);font-size:.72rem;font-weight:800;line-height:1.2;font-variant-numeric:normal}
.article-toc ol.toc-steps{position:relative;display:flex;flex-direction:column;gap:.1rem;margin:0;padding:0;border-left:0;list-style:none;counter-reset:tocs}
.toc-steps::before,.toc-steps::after{content:"";position:absolute;left:11px;top:19px;width:2px;border-radius:2px;pointer-events:none}
.toc-steps::before{height:var(--toc-rail,calc(100% - 38px));background:var(--line)}
.toc-steps::after{height:var(--toc-fill,0px);background:linear-gradient(180deg,var(--brand),var(--brand-dark));transition:height .3s ease-out}
.toc-steps li{position:relative;z-index:1;counter-increment:tocs}
.article-toc .toc-steps a{position:relative;display:block;margin:0;padding:.45rem .2rem .45rem 2.3rem;border:0;border-radius:0;background:none;font-size:.86rem;line-height:1.4;color:var(--muted)}
.article-toc .toc-steps a{--p:0;transition:color .2s,--p .35s ease-out}
.article-toc .toc-steps a::before{content:counter(tocs);position:absolute;left:0;top:7px;display:grid;place-items:center;width:24px;height:24px;border:2px solid transparent;border-radius:50%;background:linear-gradient(var(--toc-dot-bg),var(--toc-dot-bg)) padding-box,conic-gradient(var(--brand) calc(var(--p)*1turn),var(--line) 0) border-box;color:var(--muted);font-size:.68rem;font-weight:800;line-height:1;font-variant-numeric:normal;transition:color .2s,box-shadow .2s}
.article-toc .toc-steps a::after{content:"";position:absolute;left:6px;top:13px;width:12px;height:12px;background:var(--brand);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/contain no-repeat;opacity:0;transform:scale(.5);transition:opacity .2s,transform .2s}
.article-toc .toc-steps a:hover{background:none;color:var(--ink);text-decoration:none}
.article-toc .toc-steps a:hover::before{color:var(--brand)}
.article-toc .toc-steps a.is-read{border:0;color:var(--ink)}
.article-toc .toc-steps a.is-read::before{content:"";background:linear-gradient(var(--brand-wash),var(--brand-wash)) padding-box,linear-gradient(var(--brand),var(--brand)) border-box}
.article-toc .toc-steps a.is-read::after{opacity:1;transform:none}
.article-toc .toc-steps a.is-current{border:0;background:none;color:var(--ink);font-weight:700}
.article-toc .toc-steps a.is-current::before{color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 14%,transparent)}
@media (prefers-reduced-motion:reduce){.toc-steps::after,.article-toc .toc-steps a,.article-toc .toc-steps a::before,.article-toc .toc-steps a::after{transition:none}}
.toc-card+.toc-more{margin-top:1.4rem}
@media (max-width:960px){.article-toc:has(.toc-card){padding:4px 6px 0;border:0;background:none}}
@media (max-width:640px){.article-toc:has(.toc-card){padding:4px 18px 0}}
@media (min-width:961px){.article-layout:has(.toc-card){grid-template-columns:240px minmax(0,1fr)}}
.toc-card+.toc-more .toc-title{font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}