@charset "UTF-8";
:root{--paper:#ffffff;--page-top:#eef1f4;--card:#fffdf9;--ink:#29283a;--muted:#6e6b79;--body:#555161;--line:#e6e1ee;--accent:#7951c7;--accent-deep:#5d3ca8;--accent-soft:#e9ddf8;--accent-ink:#5d3ca8;--on-accent:#ffffff;--soft-surface:#f6f1fc;--prompt-bg:#fffdf9;--outline:#cebae9;--hover:#f1eafa;--top:32px;--nav:76px;--radius:24px;--shadow:0 16px 38px #4630581a;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;color-scheme:light;scroll-padding-top:130px}
*{box-sizing:border-box}body{margin:0;min-height:100vh;font-size:14px;line-height:1.65;background:linear-gradient(180deg,var(--page-top) 0,var(--paper) 560px)}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{color:inherit;cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-decoration:none}a,button,input,select{outline-offset:5px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent)}button svg,a svg{flex-shrink:0}img{display:block;max-width:100%}svg{vertical-align:middle}.icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip-link{position:fixed;z-index:100;top:-60px;left:20px;padding:10px 18px;background:var(--accent-soft);border:1px solid}.skip-link:focus{top:10px}
.announcement{height:var(--top);display:flex;align-items:center;justify-content:center;gap:10px;background:var(--accent-soft);color:var(--accent-ink);font-size:11px;letter-spacing:.04em}.announcement .spark{color:var(--accent)}.announcement a{color:var(--accent-ink);margin-left:12px}.announcement .icon{width:12px;height:12px}.site-header{position:sticky;top:0;z-index:30;height:var(--nav);display:flex;align-items:center;gap:36px;padding:0 32px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--card) 96%,transparent);backdrop-filter:blur(12px)}.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;font-size:22px;font-weight:760;letter-spacing:-1px}.brand-symbol{width:36px;height:36px;border-radius:12px;background:var(--accent);color:var(--on-accent);display:grid;place-items:center;font-size:25px;font-weight:500;font-style:italic;letter-spacing:-3px;padding-right:3px}.brand-label{font-size:10px;border-left:1px solid var(--line);padding-left:11px;margin-left:2px;letter-spacing:1px;font-weight:500;color:var(--muted)}.primary-nav{display:flex;align-items:center;gap:25px;font-size:13px;white-space:nowrap}.primary-nav a{color:var(--muted)}.primary-nav a:hover,.primary-nav a[aria-current=page]{color:var(--accent);font-weight:600}.header-actions{margin-left:auto;display:flex;gap:10px;align-items:center}.search-control{height:39px;display:flex;align-items:center;gap:8px;padding:0 12px;border:1px solid var(--line);border-radius:24px;background:var(--card);width:265px}.search-control input{width:100%;min-width:0;border:0;outline:none;background:transparent;color:var(--ink);font-size:12px}.search-control:focus-within{border-color:var(--accent)}.search-control kbd{border:1px solid var(--line);font-size:10px;padding:0 4px;border-radius:4px;color:var(--muted);font-family:inherit}.icon-button{border:1px solid var(--line);background:var(--card);width:38px;height:38px;display:grid;place-items:center;border-radius:50%}.icon-button:hover{background:var(--hover)}.nav-cta{border:0;background:var(--accent);color:var(--on-accent);border-radius:30px;padding:9px 17px;font-size:12px;white-space:nowrap}.mobile-menu{display:none}
.catalog-layout{display:grid;grid-template-columns:224px minmax(0,1fr);max-width:1800px;margin:auto;min-height:calc(100vh - 108px)}.sidebar{position:sticky;top:var(--nav);height:calc(100vh - var(--nav));overflow-y:auto;border-right:1px solid var(--line);padding:27px 21px 30px}.sidebar-title{display:flex;justify-content:space-between;align-items:center;font-weight:600;margin:0 4px 25px;font-size:12px}.sidebar-title span{font-weight:400;color:var(--muted);font-size:11px}.filter-label{font-size:10px;font-weight:500;letter-spacing:.1em;color:var(--muted);margin:23px 10px 10px}.filter-group+.filter-group{border-top:1px solid var(--line);margin-top:21px;padding-top:1px}.filter-button{display:flex;align-items:center;gap:11px;width:100%;border:0;background:transparent;text-align:left;border-radius:9px;padding:9px 11px;margin:3px 0;font-size:12px;color:var(--muted)}.filter-button .icon{width:16px;height:16px}.filter-button .filter-count{margin-left:auto;font-size:10px;opacity:.7}.filter-button:hover{background:var(--hover)}.filter-button[aria-pressed=true]{background:var(--accent-soft);color:var(--accent-ink);font-weight:600}.filter-button[aria-pressed=true] .filter-count{opacity:1}.side-note{margin:30px 10px 0;color:var(--muted);font-size:10px;line-height:1.9}.side-note strong{display:block;color:var(--ink);font-weight:500;margin-bottom:5px}.side-note .tiny-dot{display:inline-block;background:var(--accent);width:5px;height:5px;border-radius:100%;margin-right:6px}.catalog{padding:36px 34px 60px;min-width:0}.intro-eyebrow{font-size:10px;letter-spacing:.16em;color:var(--muted);margin:0 0 8px}.catalog-heading{display:flex;align-items:center;gap:12px}.catalog-heading h1{font-size:30px;line-height:1.4;font-weight:650;letter-spacing:-1px;margin:0}.count-pill{font-size:11px;white-space:nowrap;color:var(--accent-ink);background:var(--accent-soft);border-radius:20px;padding:3px 10px;align-self:center}.intro-subtitle{margin:9px 0 0;font-size:12px;color:var(--muted);line-height:1.8}.catalog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:28px 0 21px}.filter-status{color:var(--muted);font-size:11px}.filter-status strong{color:var(--ink);font-weight:500}.segmented{display:flex;padding:4px;background:var(--card);border:1px solid var(--line);border-radius:30px;gap:1px}.segmented button{border:0;background:transparent;border-radius:20px;font-size:11px;color:var(--muted);padding:6px 14px}.segmented button[aria-pressed=true]{background:var(--accent);color:var(--on-accent);box-shadow:0 2px 5px #0002}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 21px}.guide-card{position:relative;min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.guide-card[hidden]{display:none}.cover-link{display:block;position:relative;border-radius:var(--radius) var(--radius) 0 0;border:0;overflow:hidden;background:var(--accent-soft);aspect-ratio:1.68}.cover-link img{width:100%;height:100%;object-fit:cover;transition:transform .35s}.guide-card:hover .cover-link img{transform:scale(1.025)}.card-category{position:absolute;top:12px;left:13px;font-size:9px;padding:3px 9px;border-radius:20px;background:#ffffffe0;color:#444153;backdrop-filter:blur(5px);font-weight:500}.card-bookmark{position:absolute;top:11px;right:12px;width:28px;height:28px;border:1px solid #00000008;border-radius:50%;background:#ffffffda;display:grid;place-items:center;color:#6842b3;z-index:1}.card-bookmark .icon{width:13px;height:13px}.card-bookmark[aria-pressed=true]{color:var(--accent-ink);background:var(--accent-soft)}.card-bookmark[aria-pressed=true] .icon{fill:var(--accent-ink)}.card-info{padding:14px 16px 18px}.card-title{display:block;font-size:15px;font-weight:600;letter-spacing:-.2px;line-height:1.6}.card-title:hover{color:var(--accent)}.card-summary{font-size:11px;line-height:1.8;color:var(--muted);margin:6px 0 10px;min-height:39px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-meta{display:flex;align-items:center;gap:6px;font-size:9px;color:var(--muted);letter-spacing:.02em}.card-meta .icon{width:11px;height:11px}.card-meta .chapter-count{margin-left:auto}.card-tag{background:var(--hover);padding:2px 6px;border-radius:5px;font-size:9px}.catalog-end{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:10px;margin:46px 0 0}.catalog-end:before,.catalog-end:after{content:"";height:1px;flex:1;background:var(--line)}.empty-state{padding:72px 20px;text-align:center;grid-column:1/-1}.empty-state[hidden]{display:none}.empty-state .empty-icon{font-size:30px;color:var(--muted)}.empty-state h2{font-size:20px;font-weight:500}.empty-state p{color:var(--muted);font-size:13px}.empty-state button{margin-top:15px;background:var(--accent);color:var(--on-accent);border:0;border-radius:25px;padding:10px 22px}.site-footer{border-top:1px solid var(--line);padding:25px 35px;display:flex;justify-content:space-between;gap:16px;max-width:1800px;margin:auto;font-size:10px;color:var(--muted)}.site-footer a:hover{color:var(--ink)}.footer-links{display:flex;gap:18px}.toast{position:fixed;z-index:100;bottom:28px;left:50%;transform:translate(-50%,15px);background:var(--ink);color:var(--paper);padding:10px 22px;border-radius:30px;opacity:0;pointer-events:none;transition:.2s;font-size:12px;max-width:calc(100vw - 40px);text-align:center}.toast.visible{opacity:1;transform:translate(-50%,0)}
.article-shell{max-width:1300px;padding:30px 32px 70px;margin:auto}.breadcrumbs{display:flex;flex-wrap:wrap;gap:9px;font-size:11px;color:var(--muted);margin-bottom:36px}.breadcrumbs a:hover{text-decoration:underline}.article-layout{display:grid;grid-template-columns:190px minmax(0,720px);gap:55px;justify-content:center}.toc{position:sticky;top:105px;align-self:start;font-size:11px;padding-top:7px;max-height:calc(100vh - 130px);overflow:auto}.toc-title{font-size:10px;letter-spacing:.12em;color:var(--muted);margin:0 0 18px}.toc a{display:block;border-left:2px solid var(--line);padding:8px 13px;color:var(--muted);line-height:1.7}.toc a:hover,.toc a.active{color:var(--ink);border-left-color:var(--accent);background:var(--hover)}.toc .toc-home{margin-top:30px;border:0;padding-left:0;color:var(--ink)}.article{min-width:0}.article-labels{display:flex;gap:9px;align-items:center;font-size:10px;margin-bottom:15px}.article-labels span{padding:4px 10px;border-radius:20px;background:var(--accent-soft);color:var(--accent-ink)}.article-labels small{color:var(--muted);font-size:10px}.article h1{font-size:38px;line-height:1.45;font-weight:650;letter-spacing:-1.4px;margin:0 0 15px;max-width:700px}.article-deck{font-size:15px;line-height:1.9;color:var(--muted);margin:0 0 20px}.article-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:10px;margin-bottom:24px}.article-meta .meta-dot{opacity:.5}.article-actions{display:flex;gap:9px;margin:0 0 29px}.soft-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);background:var(--card);border-radius:25px;padding:8px 14px;font-size:11px}.soft-button:hover{background:var(--hover)}.soft-button .icon{width:14px;height:14px}.soft-button[aria-pressed=true]{background:var(--accent-soft);border-color:var(--outline)}.article-cover{border-radius:23px;overflow:hidden;margin-bottom:32px;border:1px solid var(--line);aspect-ratio:2.3}.article-cover img{width:100%;height:100%;object-fit:cover}.source-note{padding:16px 19px;border:1px solid var(--line);border-radius:12px;color:var(--muted);font-size:11px;line-height:1.9;margin-bottom:35px;background:var(--card)}.source-note a{text-decoration:underline;text-underline-offset:3px;color:var(--ink)}.prose{font-size:15px;line-height:2;color:var(--body)}.prose section{scroll-margin-top:110px}.prose h2{font-size:23px;line-height:1.6;letter-spacing:-.6px;color:var(--ink);font-weight:600;margin:34px 0 12px}.prose p{margin:0 0 18px}.practice{border:1px solid var(--outline);background:var(--soft-surface);border-radius:20px;padding:25px;margin-top:34px;scroll-margin-top:100px}.practice-eyebrow{font-size:10px;letter-spacing:.1em;color:var(--accent-ink)}.practice h2{font-size:20px;margin:7px 0 14px}.practice-intro{font-size:11px;color:var(--muted);margin:0 0 14px}.prompt-box{white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px;line-height:1.9;border:1px solid var(--outline);border-radius:12px;padding:18px;background:var(--prompt-bg);margin:0 0 12px;font-family:inherit;color:var(--body)}.practice .copy-button{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.practice ul{list-style:none;margin:22px 0 0;padding:0;font-size:12px;color:var(--body)}.practice li{padding:4px 0;display:flex;gap:8px}.practice li:before{content:"✓";color:var(--accent)}.outline-details{border-bottom:1px solid var(--line);padding:22px 0;font-size:12px;color:var(--muted);margin-top:12px}.outline-details summary{cursor:pointer;color:var(--ink)}.outline-details ul{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:8px}.outline-details a{display:flex;gap:10px;align-items:baseline}.outline-details a:before{content:"↗";color:var(--accent)}.outline-details a:hover{color:var(--ink)}.takeaway{border-left:3px solid var(--accent);padding:4px 0 4px 19px;margin:28px 0;font-size:14px;line-height:1.9;color:var(--body)}.article-pagination{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:45px}.article-pagination a{border:1px solid var(--line);border-radius:15px;padding:17px;background:var(--card);font-size:13px}.article-pagination a:hover{border-color:var(--accent)}.article-pagination a:last-child{text-align:right}.article-pagination small{display:block;font-size:10px;color:var(--muted);margin-bottom:7px}.reading-progress{position:fixed;top:var(--nav);left:0;width:0;height:2px;background:var(--accent);z-index:40}.mobile-toc{display:none}
.simple-page{max-width:1050px;margin:0 auto;padding:50px 32px 90px}.simple-page .intro-eyebrow{margin-bottom:10px}.simple-page h1{font-size:38px;letter-spacing:-1px;font-weight:600;margin:0 0 16px}.simple-lead{font-size:15px;color:var(--muted);max-width:640px;margin:0 0 32px;line-height:1.9}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.path-card{padding:27px;border:1px solid var(--line);border-radius:21px;background:var(--card)}.path-number{display:block;font-size:44px;letter-spacing:-2px;font-weight:300;color:var(--accent);line-height:1.2}.path-card h2{font-size:21px;line-height:1.6;margin:20px 0 10px;font-weight:500}.path-card p{font-size:12px;color:var(--muted);min-height:64px}.path-card a{display:inline-flex;gap:12px;align-items:center;border-bottom:1px solid;padding-bottom:5px;margin-top:14px;font-size:12px}.path-card a .icon{width:14px;height:14px}.about-box{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;margin:22px 0;max-width:820px}.about-box h2{font-size:20px;margin-top:0;font-weight:550}.about-box p{font-size:14px;color:var(--body);line-height:2}.about-box a{text-decoration:underline}.about-box ul{padding-left:19px;color:var(--muted);font-size:13px;line-height:2.2}.source-table-wrap{overflow:auto;border:1px solid var(--line);border-radius:15px;margin-top:30px}.source-table{border-collapse:collapse;width:100%;font-size:11px}.source-table td,.source-table th{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}.source-table th{font-weight:500;color:var(--muted);background:var(--card)}.source-table td a:hover{text-decoration:underline}.source-table tr:last-child td{border-bottom:0}.collection-link{cursor:pointer}

@media(min-width:1600px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}.catalog{padding:40px}.catalog-heading h1{font-size:34px}.site-header{padding:0 35px}}
@media(max-width:1180px){.site-header{gap:22px;padding:0 23px}.primary-nav{gap:18px}.primary-nav .optional-nav{display:none}.search-control{width:220px}.catalog-layout{grid-template-columns:200px minmax(0,1fr)}.sidebar{padding:26px 15px}.catalog{padding:30px 26px 50px}.grid{gap:27px 18px}.card-title{font-size:14px}.card-summary{font-size:10px}.card-tag:nth-child(3){display:none}.brand-label{display:none}.article-layout{gap:35px;grid-template-columns:170px minmax(0,690px)}}
@media(max-width:980px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.nav-cta{display:none}.search-control{width:210px}.catalog-heading h1{font-size:27px}.article-shell{padding:26px 25px 60px}.article-layout{grid-template-columns:150px minmax(0,1fr);gap:28px}.article h1{font-size:32px}.path-grid{gap:13px}.path-card{padding:22px}}
@media(max-width:740px){:root{--nav:66px}.announcement{font-size:9px;gap:5px}.announcement a{margin-left:6px}.site-header{padding:0 17px;gap:12px}.brand{font-size:20px}.brand-symbol{width:32px;height:32px;font-size:23px;border-radius:10px}.primary-nav{display:none}.search-control{width:170px;height:35px;padding:0 10px}.search-control kbd{display:none}.header-actions{gap:7px}.icon-button{width:34px;height:34px}.mobile-menu{display:grid}.catalog-layout{display:block}.sidebar{position:fixed;inset:var(--nav) auto 0 0;z-index:50;width:245px;background:var(--paper);box-shadow:var(--shadow);height:auto;transform:translateX(-110%);transition:transform .2s}.sidebar.open{transform:translateX(0)}.sidebar-backdrop{position:fixed;inset:var(--nav) 0 0;background:#0005;z-index:45}.sidebar-backdrop[hidden]{display:none}.catalog{padding:27px 19px 45px}.intro-eyebrow{font-size:9px}.catalog-heading{gap:9px}.catalog-heading h1{font-size:26px}.count-pill{font-size:9px;padding:3px 7px}.intro-subtitle{font-size:11px;max-width:400px}.catalog-toolbar{margin:23px 0 20px;gap:8px}.segmented button{font-size:10px;padding:5px 10px}.filter-status{font-size:10px}.grid{gap:25px 14px}.cover-link{border-radius:var(--radius) var(--radius) 0 0;aspect-ratio:1.55}.card-info{padding:11px 12px 15px}.card-title{font-size:13px}.card-category{font-size:8px;left:9px;top:9px;padding:2px 7px}.card-bookmark{right:8px;top:8px;width:25px;height:25px}.card-summary{font-size:10px;margin:6px 0 8px;min-height:35px}.card-meta{font-size:8px;gap:5px}.card-tag{font-size:8px}.card-tag:nth-child(n+2){display:none}.site-footer{font-size:9px;padding:22px 20px;flex-wrap:wrap}.footer-links{gap:15px}.article-shell{padding:22px 20px 55px}.breadcrumbs{font-size:10px;margin-bottom:28px}.article-layout{display:block}.toc{display:none}.article h1{font-size:30px;line-height:1.5;letter-spacing:-.7px}.article-deck{font-size:13px}.article-labels{margin-bottom:12px}.article-cover{aspect-ratio:1.8;border-radius:18px;margin-bottom:25px}.article-actions{gap:7px;flex-wrap:wrap}.soft-button{font-size:10px;padding:8px 12px}.mobile-toc{display:block;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:23px 0;background:var(--card);font-size:12px}.mobile-toc summary{cursor:pointer}.mobile-toc a{display:block;padding:7px 0;color:var(--muted)}.source-note{font-size:10px;margin:20px 0 28px}.prose{font-size:14px;line-height:2}.prose h2{font-size:21px;margin-top:28px}.practice{padding:20px}.practice h2{font-size:19px}.article-pagination{gap:10px}.article-pagination a{padding:14px;font-size:12px}.simple-page{padding:35px 20px 65px}.simple-page h1{font-size:30px}.simple-lead{font-size:13px}.path-grid{grid-template-columns:1fr}.path-card p{min-height:0}.path-number{font-size:32px}.path-card h2{margin-top:12px;font-size:20px}.about-box{padding:22px}.about-box p{font-size:13px}.source-table td,.source-table th{padding:11px;min-width:85px}}
@media(max-width:420px){.search-control{width:136px}.brand{gap:7px;font-size:18px}.site-header{padding:0 13px;gap:7px}.theme-toggle{display:none}.catalog-heading h1{font-size:24px}.card-summary{display:none}.card-meta{margin-top:8px}.card-title{font-size:12px}.catalog{padding-left:15px;padding-right:15px}.grid{gap:25px 12px}.filter-status{max-width:120px}.card-category{font-size:7px}.article-meta{font-size:9px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.chapter-map{border:1px solid var(--line);border-radius:16px;background:var(--card);padding:19px 23px;margin:32px 0 40px;scroll-margin-top:100px}.chapter-map summary{cursor:pointer;font-size:13px;font-weight:550}.chapter-map summary small{font-size:10px;font-weight:400;color:var(--muted);margin-left:10px}.chapter-map>p{font-size:11px;line-height:1.9;color:var(--muted);margin:15px 0}.chapter-map ol{list-style:none;margin:0;padding:0}.chapter-map li+li{border-top:1px solid var(--line)}.chapter-map li a{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:12px;padding:10px 0}.chapter-map li a:hover{color:var(--accent)}.chapter-map .chapter-level-3 a{padding-left:18px;font-size:11px;color:var(--muted)}.chapter-map .icon{width:12px;height:12px;flex:none}.walkthrough{border-top:1px solid var(--line);padding-top:35px;scroll-margin-top:100px}.walkthrough-heading h2{font-size:26px;font-weight:600;line-height:1.6;letter-spacing:-.6px;margin:8px 0}.walkthrough-heading>p{font-size:10px;color:var(--muted);margin:0 0 24px;line-height:1.8}.materials{border:1px solid var(--line);border-radius:16px;background:var(--card);margin:25px 0 31px;padding:20px}.materials-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:15px}.materials h3{font-size:13px;font-weight:550;margin:0}.materials pre{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;margin:0;font-family:inherit;font-size:12px;line-height:1.9;color:var(--muted)}.walkthrough-steps h3{display:flex;align-items:baseline;gap:11px;font-size:19px;font-weight:550;line-height:1.6;color:var(--ink);margin:27px 0 12px}.walkthrough-steps h3 span{font-size:11px;color:var(--muted);font-weight:400;letter-spacing:.08em}.expected-output{border-left:3px solid var(--accent);padding:3px 0 3px 20px;margin:30px 0}.expected-output h3{font-size:13px;font-weight:550;margin:0 0 10px}.expected-output p{font-size:13px;line-height:2;color:var(--muted);margin:0}
@media(max-width:740px){.chapter-map{padding:17px 18px}.chapter-map li a{font-size:11px}.walkthrough{padding-top:28px}.walkthrough-heading h2{font-size:23px}.walkthrough-steps h3{font-size:18px}.materials{padding:17px}.materials-heading{align-items:flex-start}.materials .soft-button{padding:6px 9px;white-space:nowrap}.expected-output{padding-left:16px}}

.walkthrough-heading h2{text-wrap:balance}

/* The guide library is a column of the personal website. */
.brand-symbol{font-style:normal;letter-spacing:0;padding:0;font-size:20px}.brand-label{font-size:11px;letter-spacing:0}.personal-context{font-size:11px;color:var(--muted);margin:0 0 16px}.personal-context a{text-decoration:underline}.intro-subtitle .independent-note{display:block;margin-top:5px}.personal-links{display:flex;align-items:center;gap:18px;margin-left:auto}.personal-links a{white-space:nowrap}
@media(max-width:1100px){.personal-links{display:none}}
.tutorial-status{border:1px solid var(--outline);border-radius:22px;padding:28px;background:var(--accent-soft);margin:0 0 28px}.tutorial-status span{display:block;color:var(--accent-ink);font-size:11px;margin-bottom:10px}.tutorial-status strong{font-size:26px;color:var(--ink);font-weight:600}.tutorial-status p{margin:10px 0 0;color:var(--body);font-size:13px}.tutorial-article .prose a{text-decoration:underline;text-underline-offset:3px;color:var(--accent-deep)}.tutorial-code{white-space:pre;overflow-x:auto;max-width:100%;padding:20px;border:1px solid var(--outline);border-radius:14px;background:var(--soft-surface);color:var(--body);font:12px/1.8 ui-monospace,SFMono-Regular,Menlo,monospace;margin:18px 0 24px;tab-size:4}.tutorial-code:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media(max-width:740px){.tutorial-status{padding:22px}.tutorial-status strong{font-size:23px}.tutorial-code{padding:15px;font-size:11px}.catalog-heading{flex-wrap:wrap}}

/* Match PastelHomepage / ToolsPage surfaces and purple controls in both themes. */
::selection{background:var(--accent-soft);color:var(--ink)}
.nav-cta:hover,.practice .copy-button:hover,.empty-state button:hover{background:var(--accent-deep);color:var(--on-accent)}
.toc a:hover,.toc a.active{color:var(--accent-ink)}
html[data-theme=dark]{--paper:#191724;--page-top:#201c2d;--card:#262234;--ink:#f1edf8;--muted:#b9b1c9;--body:#d5ccdf;--line:#40384f;--accent:#bea1ef;--accent-deep:#cdb5f6;--accent-soft:#403250;--accent-ink:#dbc7fa;--on-accent:#25163e;--soft-surface:#30263f;--prompt-bg:#221c2e;--outline:#6f588b;--hover:#342b43;--shadow:0 16px 38px #100c1933;color-scheme:dark}
html[data-theme=dark] .card-bookmark[aria-pressed=true]{background:#e9ddf8;color:#5d3ca8}
html[data-theme=dark] .card-bookmark[aria-pressed=true] .icon{fill:#5d3ca8}