:root{--color-text:#202321;--color-muted:#69706b;--color-background:#fbfaf6;--color-white:#fff;--color-brand:#d99018;--color-brand-dark:#9e6510;--color-brand-soft:#f3e3bf;--color-link:#8d5909;--color-link-hover:#7f4d05;--color-graphite:#242a27;--color-graphite-dark:#151a18;--color-border:#dddcd5;--color-surface:#f4f2eb;--color-footer-text:#f7f5ef;--color-footer-muted:#c8ccc8;--container-wide:1180px;--container-directory:1080px;--container-article:1120px;--article-main:760px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--color-text);background:var(--color-background);font-family:Arial,Helvetica,segoe ui,sans-serif;line-height:1.6}a{color:var(--color-link);text-decoration:none}button,input{font:inherit}.wrap{width:min(var(--container-wide),calc(100% - 48px));margin-inline:auto}.skip-link{position:fixed;z-index:1000;top:8px;left:8px;transform:translateY(-150%);background:var(--color-graphite-dark);color:var(--color-white);padding:10px 16px}.skip-link:focus{transform:none}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}:focus-visible{outline:3px solid var(--color-brand-dark);outline-offset:3px}.eyebrow{display:block;color:var(--color-link);font-size:.72rem;font-weight:700;letter-spacing:.13em}.site-header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--color-border)}.header-inner{height:88px;max-width:var(--container-wide);margin:auto;padding:0 28px;display:flex;align-items:center;gap:38px}.brand{display:flex;align-items:center;color:var(--color-text);white-space:nowrap}.brand-name{position:relative;display:flex;align-items:baseline;gap:6px;padding:8px 0 9px;font-size:19px;line-height:1;letter-spacing:.02em}.brand-name:after{content:"";position:absolute;left:0;right:0;bottom:3px;height:1px;background:var(--color-brand)}.brand-name strong{font-weight:700}.brand-name span{font-weight:500}.desktop-nav{display:flex;align-items:center;gap:27px;margin-left:auto}.desktop-nav a{color:#3e4541;font-size:14px;font-weight:400;white-space:nowrap}.desktop-nav a:hover{color:var(--color-link-hover);text-decoration:underline}.header-actions{display:flex;align-items:center}.header-search{display:flex;width:235px;height:38px;margin-left:6px}.header-search input{min-width:0;flex:1;border:1px solid #d8d9d3;border-right:0;background:#fff;padding:0 13px;color:#303531}.header-search input::placeholder{color:#8a908c}.header-search button{width:40px;border:0;background:var(--color-brand);color:#fff;font-size:22px;cursor:pointer}.header-search button:hover{background:#b97812}.mobile-search-button,.menu-button{display:none;border:0;background:0 0;color:var(--color-brand-dark)}.mobile-nav{padding:8px 24px 18px;border-top:1px solid var(--color-border);background:#fff}.mobile-nav a{display:block;padding:12px 0;color:#3e4541;border-bottom:1px solid var(--color-border)}.mobile-nav a:hover{color:var(--color-link)}.home-hero{position:relative;isolation:isolate;min-height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center;background:var(--color-graphite);color:var(--color-white)}.home-hero:before{content:"";position:absolute;z-index:0;inset:0;background:linear-gradient(rgba(24,29,26,.66),rgba(24,29,26,.72)),linear-gradient(rgba(117,77,17,5%),rgba(117,77,17,.1)),url(/images/battery-study-hero.png)50%/cover no-repeat;filter:saturate(.72)contrast(.9)brightness(.9)}.home-hero:after{content:"";position:absolute;z-index:1;left:-5%;right:-5%;bottom:-50px;height:80px;background:var(--color-background);border-radius:50% 50% 0 0/100% 100% 0 0}.hero-content{position:relative;z-index:2;width:min(720px,calc(100% - 48px));padding:44px 0 70px}.home-hero h1{margin:0 0 24px;font:600 21px/1.3 Arial,Helvetica,sans-serif;letter-spacing:0}.home-hero p{max-width:730px;margin:0 auto 20px;color:rgba(255,255,255,.9);font-size:16px;line-height:1.65;text-shadow:0 1px 2px rgba(0,24,38,.3)}.button{display:inline-block;padding:15px 22px;background:var(--color-brand);color:#fff;border-radius:2px;font-size:14px;font-weight:700;letter-spacing:.035em}.hero-button{margin-top:10px;padding:15px 25px;font-size:14px;font-weight:600}.hero-button:hover{background:#b97812}.hero-button:active{background:var(--color-brand-dark)}.home-breathing-space{height:80px;background:var(--color-background)}.site-footer{color:#fff}.footer-upper{background:var(--color-graphite);padding:50px 28px}.footer-grid{max-width:var(--container-wide);margin:auto;display:flex;justify-content:space-between;align-items:flex-start;gap:60px}.footer-brand{color:#fff}.footer-brand .brand-name{font-size:17px}.footer-brand .brand-name:after{background:rgba(255,255,255,.8)}.footer-intro p{margin:18px 0 0;color:var(--color-footer-muted);font-size:14px}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(130px,1fr));gap:10px 40px}.footer-links a{color:var(--color-footer-text);font-size:13.5px}.footer-links a:hover{color:#e2a23a}.footer-lower{background:var(--color-graphite-dark);padding:20px 28px;color:var(--color-footer-muted);font-size:13px}.footer-lower>div{max-width:var(--container-wide);margin:auto;display:flex;justify-content:space-between;gap:25px}.footer-lower a{color:var(--color-footer-muted)}.footer-lower a:hover{color:#e2a23a}.search-dialog{position:fixed;z-index:100;inset:0;background:rgba(21,26,24,.84);padding:8vh 20px}.search-panel{max-width:720px;margin:auto;background:#fff;padding:30px;border:1px solid var(--color-border)}.search-heading{display:flex;justify-content:space-between;align-items:start}.search-heading h2{margin:5px 0 25px;font-size:30px;font-weight:500}.search-heading button{border:0;background:0 0;font-size:2rem;cursor:pointer}.search-panel label{display:block;font-size:.78rem;font-weight:700;margin-bottom:8px}.search-panel input{width:100%;padding:15px;border:1px solid #d9dfe3;background:#fff;font-size:1.05rem}.search-results{max-height:55vh;overflow:auto;margin-top:15px}.search-results a{display:grid;grid-template-columns:70px 1fr auto;gap:3px 12px;padding:12px 3px;border-bottom:1px solid var(--color-border)}.search-result-number,.search-result-section,.search-results small{color:var(--color-muted);font-size:12px}.search-result-section{text-align:right}.search-results strong{color:var(--color-text);font-size:14px;font-weight:500}.search-results small{grid-column:2/-1}.search-results a:hover strong{color:var(--color-brand-dark)}.modal-open{overflow:hidden}.not-found{text-align:center;padding:110px 20px}.error-code{font-size:9rem;line-height:1;color:#dce2df}.text-button{border:0;background:0 0;color:var(--color-link);margin-left:20px;cursor:pointer}.breadcrumbs{padding-top:18px}.breadcrumbs ol{display:flex;gap:9px;list-style:none;margin:0;padding:0;font-size:11px;color:#7b817c}.breadcrumbs li+li:before{content:'/';margin-right:9px}.breadcrumbs a{color:#7b817c}.breadcrumbs a:hover{color:var(--color-link-hover)}.section-hero{padding:54px 0 38px;border-bottom:1px solid var(--color-border)}.section-hero h1{margin:9px 0;font-size:38px;line-height:1.15;font-weight:600}.section-hero p{font-size:15px;max-width:700px;color:var(--color-muted)}.section-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:58px;padding:44px 0 68px}.article-list{border-top:1px solid var(--color-border)}.article-row{display:grid;grid-template-columns:70px 1fr auto;gap:13px;padding:14px 5px;border-bottom:1px solid var(--color-border);color:var(--color-text)}.article-row small{display:block;color:var(--color-muted);margin-top:2px}.article-number{font-size:11px;color:#969086}.article-row strong{font-size:14px;font-weight:500}.article-row:hover strong{color:var(--color-brand-dark)}.interior-hero{position:relative;isolation:isolate;display:flex;align-items:center;justify-content:center;min-height:190px;overflow:hidden;background:#1c211f;color:#fff;text-align:center}.interior-hero:after{content:'';position:absolute;z-index:1;left:-5%;right:-5%;bottom:-48px;height:74px;background:var(--color-background);border-radius:50% 50% 0 0/100% 100% 0 0}.interior-hero-inner{position:relative;z-index:2;width:min(900px,calc(100% - 40px));padding:20px 0 50px}.learn-page-hero h1{margin:0;font-size:26px;line-height:1.2;font-weight:400}.article-page-hero h1{max-width:820px;margin:0 auto;font-size:clamp(27px,2.5vw,32px);line-height:1.2;font-weight:400}.learn-page{background:var(--color-background);padding:30px 0 74px}.learn-directory-wrap{width:min(1e3px,calc(100% - 48px));margin:auto}.learn-directory{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px;align-items:start}.learn-directory-column{background:#fff;border-top:5px solid var(--color-text);border-radius:0;box-shadow:0 3px 12px rgba(20,24,21,.1);padding:18px 18px 24px}.learn-directory-column h2{margin:0 0 8px;font-size:20px;line-height:1.15;font-weight:700}.directory-column-description{margin:0 0 12px;color:#68706b;font-size:13px;line-height:1.45}.learn-directory-column section{margin-top:14px}.directory-subgroup{margin:8px 0 0 7px;padding-left:10px;border-left:1px solid #e1ded5}.directory-subgroup h4{margin:0 0 5px;color:#4f5651;font-size:12px;line-height:1.3;font-weight:600}.learn-directory-column h3{margin:0 0 5px;font-size:15px;line-height:1.25;font-weight:700}.directory-link{display:block;margin-bottom:5px;color:var(--color-link);font-size:12px;line-height:1.35}.directory-link:hover{color:var(--color-link-hover);text-decoration:underline}.learn-directory-footer{padding-top:24px;text-align:left}.learn-directory-footer button{border:0;background:0 0;padding:0;color:var(--color-link);font-size:12px;cursor:pointer}.learn-directory-footer button:hover{color:var(--color-link-hover);text-decoration:underline}.article-page{background:var(--color-background);padding:34px 0 0}.article-layout{width:min(1200px,calc(100% - 48px));margin:auto;display:grid;grid-template-columns:minmax(0,790px)280px;grid-template-areas:'main sidebar' 'tail sidebar';align-items:start;justify-content:center;gap:0 50px}.article-main{grid-area:main;min-width:0}.article-deck{margin:0 0 18px;color:#5f6661;font-size:15.5px;line-height:1.55}.prose{font-size:14.5px;line-height:1.62;color:#2b302d}.prose p{margin:0 0 15px}.prose h2{margin:34px 0 10px;color:var(--color-text);font-size:20px;line-height:1.25;font-weight:600}.prose h3{margin:27px 0 8px;color:var(--color-text);font-size:17px;line-height:1.3;font-weight:600}.prose a{color:var(--color-link);text-decoration:underline;text-decoration-color:rgba(141,89,9,.3);text-underline-offset:2px}.prose a:hover{color:var(--color-link-hover)}.prose li{margin:0 0 5px}.prose blockquote{margin:24px 0;padding:3px 0 3px 18px;border-left:3px solid #c28627;color:#555b57}.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:24px 0}.prose table{border-collapse:collapse;width:100%;min-width:560px;font-size:12.5px}.prose th{background:#ece9e1;color:#252a27;text-align:left}.prose th,.prose td{padding:9px 10px;border:1px solid #d9d7d0;vertical-align:top}.prose td{background:#fff}.note{margin:24px 0;padding:15px 17px;background:var(--color-surface);border-left:3px solid #b77a1c;border-radius:0;font-size:13px}.note-warning{background:#fff5e5;border-color:#c86d13}.note-important{background:var(--color-surface);border-color:#b77a1c}.note>strong{display:block;margin-bottom:4px}.note p{margin:0}.technical-figure{max-width:560px;margin:26px auto}.technical-figure.figure-narrow{max-width:430px}.technical-figure.figure-wide{max-width:100%}.technical-figure img{display:block;width:100%;height:auto;background:#fff}.technical-figure figcaption{margin-top:7px;color:#555;font-size:11px;line-height:1.4;font-style:italic;text-align:center}.inline-related{display:block;margin:20px 0;padding:9px 0;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);background:0 0;text-decoration:none!important}.article-updated{margin:30px 0 0;padding-top:10px;border-top:1px solid var(--color-border);color:var(--color-muted);font-size:11px;font-style:italic}.article-sidebar{grid-area:sidebar;align-self:start;display:flex;flex-direction:column;gap:20px;width:100%}.article-widget{width:100%;box-sizing:border-box;background:#fff;border:1px solid #e2dfd8;border-top:4px solid var(--color-text);box-shadow:0 3px 10px rgba(20,24,21,8%);padding:16px 16px 18px}.article-widget .article-widget-title{margin:0 0 12px;font-size:17px;line-height:1.2;font-weight:700}.sidebar-search{display:flex;height:36px}.sidebar-search input{min-width:0;width:100%;height:36px;border:1px solid #d8d9d3;border-right:0;border-radius:2px 0 0 2px;padding:0 9px;color:var(--color-text);font-size:12.5px}.sidebar-search button{flex:0 0 36px;width:36px;height:36px;border:0;border-radius:0 2px 2px 0;background:var(--color-brand);color:#fff;font-size:15px;cursor:pointer}.sidebar-search button:hover{background:#b97812}.article-toc-list,.toc-h3-list{margin:0;padding:0;list-style:none}.toc-h2-row{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px solid #e0ddd6}.toc-h2-row>a{min-width:0;color:#292f2b;font-size:12.5px;line-height:1.35;font-weight:500}.toc-h2-row>a:hover{color:#9e6510}.toc-toggle{flex:none;border:0;background:0 0;padding:0 2px;color:#a15f08;font-size:13px;line-height:1.35;cursor:pointer}.toc-h3-list{margin-top:5px;padding:0 0 8px 14px}.toc-h3-list li+li{margin-top:5px}.toc-h3-list a{display:block;color:#6f756f;font-size:11.5px;line-height:1.4}.toc-h3-list a:hover{color:#9e6510}.article-content h2,.article-content h3{scroll-margin-top:110px}.article-tail{grid-area:tail}.article-nav{display:grid;grid-template-columns:1fr 1fr;min-height:100px;margin:34px 0 0;border-top:1px solid #343936;border-bottom:1px solid #343936}.article-nav-item{display:flex;align-items:center;min-width:0;padding-top:18px;padding-bottom:18px}.article-nav-previous{padding-right:28px;text-align:left}.article-nav-next{padding-left:28px;border-left:1px solid #dddcd5;text-align:right}.article-nav a{display:block;width:100%;color:var(--color-text)}.article-nav-label{display:block;margin-bottom:8px;color:#a15f08;font-size:11px;line-height:1.2}.article-nav-title{display:block;color:#202321;font-size:15px;line-height:1.35;font-weight:500}.article-nav a:hover .article-nav-title{color:#9e6510}.related-reading{width:min(1180px,calc(100% - 48px));margin:48px auto 68px}.related-reading-heading{margin:0 0 20px;color:#202321;font-size:22px;line-height:1.2;font-weight:700}.related-reading-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch;gap:20px}.related-reading-card{display:flex;flex-direction:column;min-width:0;padding:18px 18px 20px;background:#fff;border:1px solid #dedbd4;border-top:4px solid #202321;border-radius:0;box-shadow:0 2px 7px rgba(20,24,21,5%)}.related-reading-meta{margin:0 0 9px;color:#9e6510;font-size:10.5px;line-height:1.3;font-weight:400}.related-reading-title{display:block;margin:0 0 8px;color:#202321;font-size:16.5px;line-height:1.28;font-weight:650;text-decoration:none}.related-reading-title:hover{color:#9e6510}.related-reading-summary{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:3;margin:0 0 16px;color:#68706b;font-size:12.5px;line-height:1.5}.related-reading-link{align-self:flex-start;margin-top:auto;color:#a15f08;font-size:11.5px;font-weight:600}.related-reading-link:hover{color:#9e6510;text-decoration:underline}@media(max-width:930px){.desktop-nav,.header-search{display:none}.mobile-search-button,.menu-button{display:block}.header-actions{margin-left:auto}.mobile-search-button{width:40px;height:40px;font-size:21px}.menu-button{width:42px;height:42px;padding:9px}.menu-button i{display:block;height:2px;background:var(--color-text);margin:5px}.home-hero{min-height:520px}}@media(max-width:1000px){.related-reading-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}@media(max-width:900px){.learn-directory{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{width:min(700px,calc(100% - 40px));grid-template-columns:1fr;grid-template-areas:'main' 'sidebar' 'tail';gap:28px}.article-sidebar{margin-top:8px}.article-widget{width:100%}}@media(max-width:767px){.wrap{width:min(100% - 40px,var(--container-wide))}.header-inner{height:70px;padding:0 20px}.brand-name{font-size:18px}.home-hero{min-height:520px;background-position:54%}.hero-content{width:min(100% - 40px,680px);padding:42px 0 68px}.home-hero h1{font-size:21px;margin-bottom:18px}.home-hero p{font-size:15.5px;line-height:1.58;margin-bottom:16px}.hero-button{font-size:13px;padding:14px 20px;margin-top:10px}.home-hero:after{bottom:-34px;height:56px}.home-breathing-space{height:62px}.footer-upper{padding:40px 20px}.footer-grid{display:block}.footer-links{margin-top:30px}.footer-lower{padding:18px 20px}.footer-lower>div{display:block}.footer-lower a{display:block;margin-top:6px}.section-hero{padding:38px 0 28px}.section-hero h1{font-size:31px}.section-layout{grid-template-columns:1fr;padding-top:34px}.interior-hero{min-height:170px}.interior-hero:after{bottom:-36px;height:55px}.interior-hero-inner{padding-bottom:42px}.article-page-hero h1{font-size:25px}.article-page{padding-top:24px}.article-deck{font-size:15px}.prose{font-size:14.5px}.technical-figure{max-width:100%}.article-widget{max-width:none}.search-dialog{padding:0}.search-panel{min-height:100vh}.search-results a{grid-template-columns:58px 1fr}.search-result-section{display:none}.search-results small{grid-column:2}.table-wrap{width:100%;max-width:100%}}@media(max-width:700px){.related-reading{width:min(100% - 40px,1180px);margin-top:46px}.related-reading-heading{margin-bottom:18px}.related-reading-grid{grid-template-columns:1fr;gap:15px}}@media(max-width:699px){.article-nav{grid-template-columns:1fr;min-height:0}.article-nav-item{min-height:78px;padding:17px 0}.article-nav-item+.article-nav-item{border-top:1px solid #dddcd5;border-left:0}.article-nav-next{text-align:left}.article-nav-item--empty{display:none}.article-nav-item--empty+.article-nav-item{border-top:0}}@media(max-width:620px){.learn-page{padding-top:22px}.learn-directory-wrap{width:min(100% - 32px,1e3px)}.learn-directory{grid-template-columns:1fr;gap:24px}.learn-directory-column{padding:17px 16px 22px}.learn-page-hero h1{font-size:24px}.article-layout{width:min(100% - 40px,700px)}}@media(max-width:480px){.home-hero{min-height:540px}.home-hero p{font-size:15px}.footer-links{grid-template-columns:1fr}.article-page-hero h1{font-size:23px}.prose h2{font-size:19px}.prose h3{font-size:16px}.footer-bottom{display:block}}.about-hero{min-height:182px}.about-hero .interior-hero-inner{padding-bottom:47px}.about-hero h1{margin:0;font-size:clamp(30px,3vw,34px);line-height:1.2;font-weight:400;color:#fff}.about-page{background:var(--color-background);padding:42px 0 76px}.about-content{width:min(1100px,calc(100% - 48px));margin:0 auto}.about-page p{font-size:15.5px;line-height:1.7;color:#343a36}.about-page h2{margin:0 0 17px;color:#202321;font-size:26px;line-height:1.25;font-weight:650}.about-page h3{margin:0 0 6px;color:#202321;font-size:18px;line-height:1.3;font-weight:650}.about-opening{display:grid;grid-template-columns:minmax(0,1.5fr)minmax(260px,.7fr);gap:56px;align-items:center}.about-opening-copy p{max-width:690px;margin:0 0 15px}.about-opening-copy p:last-child{margin-bottom:0}.about-opening-visual{margin:0}.about-visual-stage{position:relative;overflow:hidden;min-height:300px;background:#efede6;border-top:3px solid #202321;padding:27px 24px 24px}.about-visual-stage:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,35,33,.055) 1px,transparent 1px),linear-gradient(rgba(32,35,33,.055) 1px,transparent 1px);background-size:28px 28px}.about-visual-index{position:relative;z-index:1;display:block;color:#777b76;font-size:10px;line-height:1.2;letter-spacing:.12em}.about-visual-cell{position:relative;z-index:1;width:112px;height:164px;margin:27px auto 24px;border:2px solid #343936;border-radius:55px 55px 8px 8px;background:#f7f5ef}.about-visual-cell:before{content:"";position:absolute;top:-9px;left:37px;width:34px;height:10px;background:#343936}.about-visual-cell i{position:absolute;top:14px;bottom:14px;width:16px;border:1px solid #b3ada2}.about-visual-cell i:nth-child(1){left:15px;background:#d8d3c9}.about-visual-cell i:nth-child(2){left:35px;background:#b5812d}.about-visual-cell i:nth-child(3){left:55px;background:#e5e1d8}.about-visual-cell i:nth-child(4){left:75px;background:#737a75}.about-visual-chain{position:relative;z-index:1;display:grid;grid-template-columns:auto 1fr auto 1fr auto;align-items:center;gap:7px;color:#4c534e;font-size:11px;letter-spacing:.055em;text-transform:uppercase}.about-visual-chain b{height:1px;background:#a15f08}.about-opening-visual figcaption,.about-image-section figcaption{margin-top:8px;color:#6d726e;font-size:11.5px;line-height:1.45;font-style:italic}.about-section{margin-top:62px}.about-prose-section{max-width:860px}.about-prose-section p{margin:0 0 15px}.about-image-section{display:grid;grid-template-columns:minmax(0,3fr)minmax(0,3fr)minmax(0,4fr);gap:20px;margin-top:58px}.about-image-section figure{min-width:0;margin:0}.about-image-section img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;background:#e8e5dd}.about-approach{display:grid;grid-template-columns:minmax(0,.9fr)minmax(0,1.1fr);gap:58px;align-items:start}.about-section-intro p{max-width:500px;margin:0}.about-section-intro a{color:#9e6510;text-decoration:underline;text-decoration-color:rgba(158,101,16,.3);text-underline-offset:2px}.about-principles{border-bottom:1px solid #cbc8c0}.about-principles section{padding:16px 0 17px;border-top:1px solid #cbc8c0}.about-principles p{margin:0;font-size:14.5px;line-height:1.62;color:#5b625d}.about-coverage .about-section-intro{display:grid;grid-template-columns:minmax(0,.85fr)minmax(0,1.15fr);gap:58px;align-items:end;margin-bottom:20px}.about-scope-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 46px;border-bottom:1px solid #d4d0c7}.about-scope-list section{padding:15px 0 16px;border-top:1px solid #d4d0c7}.about-scope-list h3{font-size:17px}.about-scope-list p{margin:0;color:#69706b;font-size:13px;line-height:1.5}.about-editorial{display:grid;grid-template-columns:minmax(0,1.05fr)minmax(320px,.95fr);gap:58px;align-items:start}.about-editorial-copy p{margin:0 0 15px}.about-text-link{display:inline-block;margin-top:4px;color:#9e6510;font-size:13.5px;font-weight:650}.about-text-link:hover{color:#7f4d05;text-decoration:underline}.about-knowledge-flow{margin:0;padding:21px 22px 19px;background:#f3f0e8;border-top:3px solid #202321}.about-knowledge-flow figcaption{margin:0 0 14px;color:#77766f;font-size:10.5px;line-height:1.3;letter-spacing:.11em;text-transform:uppercase}.about-knowledge-flow ol{margin:0;padding:0;list-style:none}.about-knowledge-flow li{position:relative;display:grid;grid-template-columns:30px 1fr;gap:10px;align-items:center;padding:9px 0;color:#303632;font-size:13.5px;line-height:1.3;border-top:1px solid #d6d1c7}.about-knowledge-flow li:after{content:"\2193";position:absolute;right:0;color:#a15f08}.about-knowledge-flow li:last-child:after{content:""}.about-knowledge-flow li span{color:#969086;font-size:10px;letter-spacing:.08em}.about-closing{margin-top:64px;padding:28px 30px 31px;background:#f3f0e8;border-top:3px solid #202321}.about-closing h2{font-size:23px}.about-closing p{max-width:760px;margin:0}.about-closing .about-text-link{margin-top:16px}@media(max-width:900px){.about-content{width:min(100% - 40px,1100px)}.about-opening{grid-template-columns:minmax(0,1.25fr)minmax(240px,.75fr);gap:36px}.about-approach,.about-editorial{gap:38px}.about-coverage .about-section-intro{gap:38px}.about-image-section{gap:14px}}@media(max-width:800px){.about-page{padding-top:34px}.about-opening,.about-approach,.about-editorial{grid-template-columns:1fr}.about-opening-visual{width:min(100%,520px)}.about-visual-stage{min-height:280px}.about-approach,.about-editorial{gap:28px}.about-section{margin-top:56px}.about-image-section{margin-top:52px}.about-coverage .about-section-intro{grid-template-columns:1fr;gap:8px;align-items:start}.about-knowledge-flow{width:min(100%,560px)}}@media(max-width:620px){.about-hero{min-height:164px}.about-hero h1{font-size:28px}.about-page{padding:28px 0 60px}.about-content{width:min(100% - 36px,1100px)}.about-page h2{font-size:23px}.about-page h3{font-size:17px}.about-page p{font-size:15px;line-height:1.68}.about-opening{gap:30px}.about-visual-stage{min-height:250px;padding:22px 19px}.about-visual-cell{width:94px;height:138px;margin:23px auto 21px}.about-visual-cell:before{left:30px;width:30px}.about-visual-cell i{width:13px}.about-visual-cell i:nth-child(1){left:13px}.about-visual-cell i:nth-child(2){left:30px}.about-visual-cell i:nth-child(3){left:47px}.about-visual-cell i:nth-child(4){left:64px}.about-image-section{grid-template-columns:1fr;gap:26px}.about-scope-list{grid-template-columns:1fr}.about-closing{margin-top:56px;padding:24px 20px 27px}}.about-opening-visual{width:min(100%,350px);justify-self:end}.about-opening-statement{margin-bottom:17px!important;color:#202321!important;font-size:22px!important;line-height:1.52!important;font-weight:500}.about-narrative{max-width:720px}.about-narrative p{margin:0 0 16px}.about-story-lead{margin-bottom:46px}.about-story-pair{display:grid;align-items:center;gap:56px;margin-top:48px}.about-story-pair--cell{grid-template-columns:minmax(0,.9fr)minmax(340px,1.1fr)}.about-story-pair--testing{grid-template-columns:minmax(340px,.95fr)minmax(0,1.05fr);margin-top:58px}.about-story-copy{min-width:0}.about-story-copy p{margin:0}.about-story-figure,.about-wide-figure{min-width:0;margin:0}.about-story-figure img,.about-wide-figure img{display:block;width:100%;height:auto;object-fit:cover;background:#e8e5dd}.about-story-figure img{aspect-ratio:4/3}.about-story-figure figcaption,.about-wide-figure figcaption{margin-top:8px;color:#6d726e;font-size:11.5px;line-height:1.45;font-style:italic}.about-story-conclusion{margin:54px 0 0 auto}.about-wide-figure{width:min(100%,980px);margin:42px 0 0 auto}.about-wide-figure img{aspect-ratio:55/31}.about-find,.about-how{padding-top:44px;border-top:1px solid #d4d0c7}.about-find .about-narrative{max-width:880px}.about-broad-links{display:flex;flex-wrap:wrap;gap:0 28px;margin:25px 0 14px;padding:13px 0;border-top:1px solid #d4d0c7;border-bottom:1px solid #d4d0c7}.about-broad-links a{color:#202321;font-size:14px;line-height:1.45;font-weight:600}.about-broad-links a span{color:#a15f08}.about-broad-links a:hover{color:#9e6510}.about-how .about-narrative{max-width:740px;margin-left:auto}@media(max-width:900px){.about-story-pair{gap:38px}.about-story-pair--cell{grid-template-columns:minmax(0,.95fr)minmax(320px,1.05fr)}.about-story-pair--testing{grid-template-columns:minmax(320px,.95fr)minmax(0,1.05fr)}.about-broad-links{gap:0 20px}.about-broad-links a{font-size:13.5px}}@media(max-width:800px){.about-opening-visual{width:min(100%,520px);justify-self:start}.about-story-pair--cell,.about-story-pair--testing{grid-template-columns:1fr;gap:25px}.about-story-pair--cell{margin-top:40px}.about-story-pair--testing{margin-top:50px}.about-story-pair--cell .about-story-figure{width:min(100%,560px);justify-self:end}.about-story-pair--testing .about-story-figure{width:min(100%,560px);justify-self:start}.about-story-conclusion{margin-top:46px}.about-wide-figure{margin-top:36px}.about-how .about-narrative{margin-left:0}.about-broad-links{display:block}.about-broad-links a{display:block;padding:7px 0}}@media(max-width:620px){.about-opening-statement{font-size:20px!important;line-height:1.55!important}.about-story-lead{margin-bottom:34px}.about-story-pair--cell,.about-story-pair--testing{margin-top:38px;gap:19px}.about-story-conclusion{margin-top:38px}.about-wide-figure{margin-top:30px}.about-find,.about-how{padding-top:36px}.about-broad-links{margin-top:21px}}.about-content{width:min(1120px,calc(100% - 48px))}.about-opening{grid-template-columns:minmax(0,1.5fr)300px;gap:64px}.about-opening-visual{width:min(100%,300px);justify-self:end}.about-narrative{max-width:740px}.about-narrative p{margin:0 0 16px}.about-story-lead{margin-bottom:0}.about-supporting-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:42px}.about-supporting-images figure,.about-system-figure{min-width:0;margin:0}.about-supporting-images img,.about-system-figure img{display:block;width:100%;object-fit:cover;background:#e8e5dd}.about-supporting-images img{aspect-ratio:4/3}.about-supporting-images figcaption,.about-system-figure figcaption{margin-top:6px;color:#77736d;font-size:11px;line-height:1.4;font-style:italic}.about-find,.about-how{max-width:740px;padding-top:44px;border-top:1px solid #d4d0c7}.about-find .about-narrative,.about-how .about-narrative{max-width:740px;margin-left:0}.about-system-figure{width:min(100%,800px);margin:38px auto 0}.about-system-figure img{aspect-ratio:2/1}.about-system-figure+.about-closing{margin-top:60px}@media(max-width:900px){.about-content{width:min(1120px,calc(100% - 40px))}.about-opening{grid-template-columns:minmax(0,1.5fr)290px;gap:40px}}@media(max-width:720px){.about-opening{grid-template-columns:1fr;gap:30px}.about-opening-visual{width:min(100%,320px);justify-self:start}.about-supporting-images{grid-template-columns:1fr;gap:28px;margin-top:38px}.about-system-figure{width:100%;margin-top:36px}}@media(max-width:620px){.about-content{width:min(1120px,calc(100% - 36px))}.about-supporting-images{margin-top:36px}.about-find,.about-how{padding-top:36px}}.policy-page{background:var(--color-background);padding:42px 0 76px}.policy-document{width:min(900px,calc(100% - 48px));margin:0 auto;color:#2b302d}.policy-intro{max-width:900px;margin-bottom:38px;padding-bottom:30px;border-bottom:1px solid #d4d0c7}.policy-deck{max-width:740px;margin:0;color:#4f5651;font-size:18px;line-height:1.6;font-weight:500}.policy-updated{margin:12px 0 0;color:#77736d;font-size:12px;line-height:1.5;font-style:italic}.policy-content{max-width:900px;font-size:15.5px;line-height:1.7}.policy-content>p{max-width:760px;margin:0 0 17px}.policy-content h2{margin:62px 0 20px;padding-top:26px;border-top:1px solid #d4d0c7;color:#202321;font-size:26px;line-height:1.25;font-weight:700}.policy-content h2:first-of-type{margin-top:0;padding-top:0;border-top:0}.policy-content h3{margin:28px 0 8px;color:#202321;font-size:17px;line-height:1.35;font-weight:700}.policy-content ol,.policy-content ul{max-width:740px;margin:12px 0 20px;padding-left:24px}.policy-content li{margin-bottom:6px;padding-left:3px}.policy-content strong{color:#202321}.policy-content a,.policy-links a{color:#9e6510}.policy-content a:hover,.policy-links a:hover{color:#7f500b;text-decoration:underline}.policy-reviewed{margin:54px 0 0;padding-top:17px;border-top:1px solid #343936;color:#77736d;font-size:12px;line-height:1.5;font-style:italic}.policy-links{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:18px;padding-top:15px;border-top:1px solid #d4d0c7}.policy-links a{font-size:12.5px;line-height:1.45;font-weight:500}.policy-links span{color:#a15f08}@media(max-width:700px){.policy-page{padding:32px 0 58px}.policy-document{width:min(900px,calc(100% - 36px))}.policy-intro{margin-bottom:29px;padding-bottom:24px}.policy-deck{font-size:17px}.policy-content{font-size:15px;line-height:1.7}.policy-content h2{margin-top:44px;font-size:24px}.policy-content h3{font-size:16.5px}.policy-links{display:block}.policy-links a{display:block;padding:6px 0}}.footer-links--vertical{grid-template-columns:1fr}.desktop-nav a{font-size:15px;font-weight:600}