:root{--reading:#4d5e66}.content-header{border-bottom:1px solid var(--line);background:#fff}.content-header>.wrap{display:flex;align-items:center;justify-content:space-between;gap:25px;min-height:78px}.content-header nav{display:flex;align-items:center;gap:25px;font-size:13px;flex-wrap:wrap}.content-header nav a[aria-current=page]{color:var(--accent);font-weight:600}.content-header .utility{font-size:12px;color:var(--muted)}.content-header a:hover,.article-body a,.reading-footer a{color:var(--accent)}.crumbs{display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:#73808a;padding-top:24px}.crumbs span[aria-hidden]{color:#a9b4ba}.product-hero{display:grid;grid-template-columns:1fr 1fr;gap:55px;padding-block:42px 55px;align-items:center}.product-hero h1{font-size:clamp(34px,3.9vw,48px);letter-spacing:-1.5px;line-height:1.35}.product-deck{font-size:17px;line-height:1.95;color:var(--reading);margin-top:20px;max-width:535px}.product-meta{display:flex;flex-wrap:wrap;gap:8px;margin-block:22px}.product-meta span{font-size:11px;background:var(--soft);border:1px solid var(--line);padding:3px 9px;border-radius:4px}.product-hero .hero-actions{margin-top:25px}.product-fine{font-size:12px;color:var(--muted);margin-top:17px}.product-shot{border:1px solid #d4dce1;background:#f0f3f5;border-radius:7px;padding:12px}.product-shot img{display:block;width:100%;height:auto;border:1px solid #d3dbdf}.product-shot figcaption{font-size:11px;color:var(--muted);padding-top:10px}.product-facts{border-block:1px solid var(--line);background:var(--soft)}.product-facts>.wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;padding-block:23px}.product-facts b{font-size:13px;font-weight:600}.product-facts p{font-size:12px;line-height:1.8;color:var(--muted);margin-top:6px}.content-section{padding-block:50px;border-bottom:1px solid var(--line)}.content-section .section-heading{margin-bottom:25px}.product-feature{display:grid;grid-template-columns:215px 1fr;gap:35px;border-top:1px solid var(--line);padding-block:23px}.product-feature h3{font-size:17px;margin:0}.product-feature p{font-size:14px;line-height:1.9;color:var(--reading);max-width:800px}.product-feature small{display:block;margin-top:8px;color:var(--muted);font-size:12px}.product-split{display:grid;grid-template-columns:1fr 1fr;gap:55px}.product-split h3{font-size:19px;margin-bottom:15px}.product-split ul{padding-left:19px;font-size:14px;color:var(--reading);line-height:1.9}.product-split li+li{margin-top:8px}.purchase-panel{background:#f0f5f2;border:1px solid #d6e1da;border-radius:7px;padding:30px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px}.purchase-panel h2{font-size:25px;margin-bottom:12px}.purchase-panel p{font-size:13px;line-height:1.9;color:var(--reading);max-width:750px}.purchase-panel .button{white-space:nowrap}.purchase-list{margin-top:24px;display:grid;grid-template-columns:repeat(4,1fr);gap:25px;counter-reset:purchase}.purchase-list>div:before{counter-increment:purchase;content:"0" counter(purchase);display:block;color:#75988c;font-size:12px;margin-bottom:7px}.purchase-list h3{font-size:14px;margin-bottom:7px}.purchase-list p{font-size:12px;color:var(--muted)}.library-heading{padding-block:38px 25px;max-width:830px}.library-heading h1{font-size:37px;line-height:1.45;margin-bottom:17px}.library-heading>p{font-size:15px;line-height:1.9;color:var(--reading)}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.guide-card{border:1px solid var(--line);border-radius:6px;padding:24px;display:flex;flex-direction:column;background:white;transition:border-color .15s}.guide-card:hover{border-color:#91aa9f}.guide-card .guide-number{font-size:11px;color:#6e887e;margin-bottom:16px}.guide-card h3,.guide-card h2{font-size:19px;line-height:1.6;letter-spacing:-.2px;margin-bottom:12px}.guide-card p{font-size:13px;line-height:1.9;color:var(--muted);margin-bottom:20px}.guide-card .text-link{margin-top:auto}.library-note{margin-block:28px 50px;padding:19px 22px;background:var(--soft);border-left:2px solid #91b4a6;font-size:13px;color:var(--reading)}.reading-title{max-width:900px;padding-block:35px 32px}.reading-title h1{font-size:clamp(28px,3.2vw,38px);line-height:1.5;letter-spacing:-.9px;margin-bottom:15px}.reading-title .lead{font-size:16px;line-height:1.9;color:var(--reading);max-width:820px}.article-meta{display:flex;gap:17px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin-top:18px}.reading-layout{display:grid;grid-template-columns:minmax(0,810px) 240px;gap:65px;align-items:start}.article-body{min-width:0;color:#344650;font-size:15px;line-height:2}.article-body section{margin-bottom:37px;scroll-margin-top:25px}.article-body h2{font-size:23px;line-height:1.65;margin-bottom:15px;letter-spacing:-.3px}.article-body h3{font-size:17px;margin:23px 0 10px}.article-body p{margin-bottom:15px}.article-body ul,.article-body ol{padding-left:23px;margin:12px 0 18px}.article-body li+li{margin-top:10px}.article-body strong{color:#263d45;font-weight:600}.article-body code{font-family:Consolas,monospace;font-size:.88em;border:1px solid #e0e7e7;padding:2px 5px;border-radius:3px;background:#f5f7f7;overflow-wrap:anywhere}.article-body a{text-decoration:underline;text-underline-offset:3px}.callout{background:#f1f6f3;border:1px solid #dae5de;border-left:3px solid #80a18e;border-radius:4px;padding:17px 20px;margin:20px 0;font-size:13px;line-height:1.9}.callout p:last-child{margin:0}.callout.plain{background:#f6f8f9;border-color:#dfe6e9;border-left-color:#9aaeb8}.article-shot{margin:23px 0}.article-shot img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:5px;display:block}.article-shot figcaption{font-size:11px;color:var(--muted);margin-top:7px}.toc{position:sticky;top:25px;background:#f7f9f8;border:1px solid #e0e7e4;border-radius:6px;padding:20px;font-size:12px}.toc h2{font-size:13px;margin-bottom:12px}.toc ol{padding-left:17px;margin:0;color:#60756b}.toc li{margin-bottom:10px}.toc a:hover{text-decoration:underline}.toc .toc-help{border-top:1px solid #dce4df;margin-top:16px;padding-top:13px;color:var(--muted);line-height:1.9}.table-scroll{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:5px}table{border-collapse:collapse;width:100%;font-size:13px;min-width:560px}th,td{text-align:left;vertical-align:top;padding:13px 15px;border-bottom:1px solid var(--line);line-height:1.9}th{background:#f5f8f7;font-weight:600;color:#30493f}tr:last-child td{border-bottom:0}th:first-child,td:first-child{width:25%}.article-next{border-top:1px solid var(--line);padding-block:26px 38px;display:flex;justify-content:space-between;gap:20px;font-size:13px}.article-next p{font-size:11px;color:var(--muted);margin-bottom:5px}.reading-footer{margin-top:30px;border-top:1px solid var(--line);padding-block:25px;display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--muted);font-size:12px}.reading-footer nav{display:flex;gap:20px;flex-wrap:wrap}.home-library{background:#fff}.home-library .section-heading p{max-width:300px}.home-library .guide-card h3{font-size:18px}.home-library .guide-card .text-link{display:block}.product-notice{font-size:12px;color:var(--muted);margin-top:18px}.print-link{font-size:12px}.library-product{border-top:1px solid var(--line);padding-block:28px;display:flex;gap:25px;justify-content:space-between;align-items:center}.library-product h2{font-size:21px;margin-bottom:7px}.library-product p{font-size:13px;color:var(--muted)}
@media(max-width:1050px){.reading-layout{grid-template-columns:minmax(0,1fr) 210px;gap:35px}.content-header nav{gap:17px}.product-hero{gap:30px}.product-split{gap:30px}.purchase-list{gap:18px}.guide-card{padding:20px}}
@media(max-width:760px){.content-header>.wrap{flex-wrap:wrap;gap:14px;padding-block:15px}.content-header nav{width:100%;gap:18px;font-size:12px;padding-top:10px;border-top:1px solid var(--line)}.content-header .utility{font-size:11px}.crumbs{padding-top:20px;font-size:11px}.product-hero{grid-template-columns:1fr;padding-block:30px 35px;gap:28px}.product-hero h1{font-size:34px}.product-deck{font-size:16px}.product-facts>.wrap{grid-template-columns:1fr;gap:18px;padding-block:23px}.content-section{padding-block:35px}.product-feature{grid-template-columns:1fr;gap:10px;padding-block:20px}.product-split{grid-template-columns:1fr;gap:23px}.purchase-panel{grid-template-columns:1fr;padding:23px;gap:19px}.purchase-panel h2{font-size:23px}.purchase-panel .button{justify-self:start}.purchase-list{grid-template-columns:1fr 1fr;gap:22px}.guide-grid{grid-template-columns:1fr}.guide-card{padding:23px}.library-heading{padding-block:28px 22px}.library-heading h1{font-size:30px}.reading-title{padding-block:28px 22px}.reading-layout{display:flex;flex-direction:column;gap:25px}.toc{order:-1;position:static;width:100%;padding:18px 20px}.toc ol{columns:2;column-gap:28px}.toc li{break-inside:avoid}.toc .toc-help{margin-top:12px;padding-top:10px}.article-body{font-size:14px;line-height:2}.article-body h2{font-size:21px}.article-body h3{font-size:16px}.article-body section{margin-bottom:30px}.article-next{flex-wrap:wrap}.reading-footer{align-items:flex-start;flex-direction:column;margin-top:20px}.library-product{align-items:flex-start;flex-direction:column}.library-product .button{margin-top:0}}
@media(prefers-reduced-motion:reduce){.guide-card{transition:none}}
.article-body{width:100%;max-width:100%}.table-scroll{max-width:100%}
@media print{.content-header,.toc,.reading-footer,.article-next,.crumbs{display:none}.wrap{width:100%;max-width:none}.reading-layout{display:block}.article-body{color:#000;font-size:11pt}.reading-title{padding-top:0}.callout{break-inside:avoid}a{color:#000}}