/* Companion reading page. Shared corporate-typography.css owns all font families. */
.art-deep{max-width:1120px;color:var(--ink);font-size:18px;line-height:1.95;overflow-wrap:anywhere}
.art-deep h1,.art-deep h2,.art-deep h3,.art-deep h4{color:var(--navy);font-weight:500;line-height:1.65;margin:0}
.art-deep h1,.art-deep h2{letter-spacing:.025em}
.art-deep h3{font-size:25px;margin:0 0 20px}
.art-deep h4{font-size:20px;margin:0 0 10px}
.art-deep p{margin:0 0 1.25em;line-height:1.95}
.art-deep figure{margin:0}
.art-deep img{display:block;width:100%;height:auto}
.art-deep figcaption{font-size:15px;line-height:1.85;color:#465774;margin:14px 4px 0}
.art-deep a{text-underline-offset:5px}
.art-deep [id]{scroll-margin-top:88px}
.art-deep a:focus-visible,.art-deep summary:focus-visible{outline:2px solid var(--navy);outline-offset:5px}
.art-deep .breadcrumbs{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:15px;line-height:1.8;margin-bottom:20px}
.art-deep .breadcrumbs a{padding:8px 0;min-height:44px}
.art-deep-eyebrow{font-size:15px;color:#465774;letter-spacing:.04em;margin:0 0 20px!important}
.art-deep-hero{padding:26px 0 36px}
.art-deep-hero-heading{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.art-deep-hero-heading>div{min-width:0}
.art-deep-hero h1{font-size:clamp(32px,3.5vw,44px);line-height:1.6;margin:6px 0 16px}
.art-deep-hero-line{font-size:clamp(23px,2.4vw,27px);line-height:1.8!important;color:var(--navy);margin:0 0 22px!important}
.art-deep-reader-intro{max-width:820px;margin-bottom:0!important}
.art-deep-hero-copy{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin:38px 0 44px}
.art-deep-hero-copy p{margin:0}
.art-deep-hero-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px;border-top:1px solid var(--line);padding-top:20px;margin-top:30px;font-size:15px}
.art-deep-hero-bottom>a{margin-left:auto;min-height:44px;display:inline-flex;align-items:center}
.art-deep-published{color:#465774}
.art-deep-contents{border-top:1px solid var(--navy);border-bottom:1px solid var(--line);padding:30px 0 32px;scroll-margin-top:96px}
.art-deep-contents h2{font-size:28px;margin:0 0 24px}
.art-deep-contents>.art-deep-eyebrow{margin-bottom:8px!important}
.art-deep-contents-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.art-deep-contents-grid a{display:flex;flex-direction:column;gap:16px;padding:0 0 20px;border-bottom:1px solid var(--line);text-decoration:none;min-width:0}
.art-deep-contents-grid img{aspect-ratio:3/2;object-fit:contain}
.art-deep-contents-text{display:flex;flex-direction:column;align-items:flex-start;flex:1}
.art-deep-contents-grid a:hover strong{text-decoration:underline;text-underline-offset:5px}
.art-deep-contents-grid strong{display:block;font-size:20px;line-height:1.75;color:var(--navy);font-weight:500}
.art-deep-contents-grid small{display:block;color:#465774;font-size:16px;line-height:1.85;margin-top:8px}
.art-deep-number{font-size:25px;line-height:1.7;color:#465774;white-space:nowrap;margin-bottom:6px}
.art-deep-contents-action{display:block;font-size:15px;color:var(--navy);margin-top:auto;padding-top:18px;text-decoration:underline;text-underline-offset:5px}
.art-deep-contents-note{font-size:16px;color:#465774;margin:22px 0 0!important}
.art-deep-chapter-nav{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:repeat(4,minmax(0,1fr)) auto;align-items:stretch;background:#fff;border-top:1px solid var(--navy);border-bottom:1px solid var(--line)}
.art-deep-chapter-nav a{display:flex;align-items:center;justify-content:center;gap:12px;padding:12px 16px;min-height:54px;font-size:17px;text-decoration:none;color:var(--navy)}
.art-deep-chapter-nav a+a{border-left:1px solid var(--line)}
.art-deep-chapter-nav a:hover,.art-deep-chapter-nav a:focus-visible{background:#f0f4f8;text-decoration:underline;text-underline-offset:5px}
.art-deep-chapter-nav span{font-size:15px;color:#465774}
.art-deep-chapter-nav .art-deep-nav-contents{font-size:15px}
.art-deep-chapter{padding:54px 0 48px;border-bottom:1px solid var(--line);scroll-margin-top:80px}
.art-deep-chapter-header{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-bottom:44px}
.art-deep-chapter-header h2{font-size:clamp(25px,2.8vw,32px);line-height:1.7}
.art-deep-chapter-lead{font-size:18px;margin:24px 0 0!important}
.art-deep-prose{max-width:840px;margin:0 auto 32px}
.art-deep-prose h3{margin-top:36px}
.art-deep-prose p:last-child{margin-bottom:0}
.art-deep-cite{display:inline-block;font-size:15px;margin:0 5px;white-space:nowrap}
.art-deep-compare-wrap{margin:30px 0 38px}
.art-deep-compare{width:100%;border-collapse:collapse;table-layout:fixed;font-size:17px;line-height:1.9}
.art-deep-compare caption{text-align:left;font-size:22px;color:var(--navy);padding-bottom:20px}
.art-deep-compare th,.art-deep-compare td{padding:22px 17px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.art-deep-compare thead th{background:#f7f9fc;border-top:1px solid var(--line);font-size:16px}
.art-deep-table-key{display:block;font-size:21px;color:var(--navy);margin-bottom:4px}
.art-deep-compare th:first-child{width:25%;color:var(--navy)}
.art-deep-compare tbody th{background:#f7f9fc}
.art-deep-compare tbody th strong{font-size:20px;font-weight:500;line-height:1.7;display:block}
.art-deep-compare th small{display:block;font-size:15px;color:#465774;margin-top:8px;line-height:1.85}
.art-deep-research{max-width:940px;margin:22px auto;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.art-deep-research+.art-deep-research{margin-top:-23px}
.art-deep-research summary{cursor:pointer;list-style:none;position:relative;padding:24px 48px 24px 4px;line-height:1.8;min-height:64px}
.art-deep-research summary::-webkit-details-marker{display:none}
.art-deep-research summary::after{content:'＋';position:absolute;right:7px;top:35px;color:var(--navy);font-size:23px}
.art-deep-research[open] summary::after{content:'−'}
.art-deep-research summary strong{display:block;font-size:22px;line-height:1.7;color:var(--navy);margin-top:8px}
.art-deep-tag{font-size:15px;color:#465774}
.art-deep-detail-body{background:#f7f9fc;padding:24px 28px 28px;margin:0 0 20px;font-size:17px}
.art-deep-detail-body p:last-child{margin-bottom:0}
.art-deep-source-links{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:16px}
.art-deep-source-links a{min-height:44px;display:inline-flex;align-items:center}
.art-deep-takeaway{max-width:940px;margin:40px auto 28px;padding:28px 32px;background:#f7f9fc;border-left:1px solid #a7b8cc}
.art-deep-takeaway .art-deep-eyebrow{margin-bottom:12px!important}
.art-deep-takeaway p:last-child{margin:0}
.art-deep-takeaway strong{display:block;color:var(--navy);font-weight:500;font-size:24px;line-height:1.7;margin-bottom:10px}
.art-deep-bridge{max-width:840px;font-size:17px;color:#465774;margin:30px auto 20px!important}
.art-deep-back{display:block;width:max-content;max-width:100%;padding:10px 0;margin:24px auto 0;font-size:16px;min-height:44px}
.art-deep-example{max-width:940px;background:#fbfaf7;padding:36px 40px;margin:38px auto}
.art-deep-example h3{font-size:28px;line-height:1.7;margin-bottom:26px}
.art-deep-story-steps{list-style:none;padding:0;margin:0}
.art-deep-story-steps li{display:flex;position:relative;gap:22px;padding:0 0 32px;break-inside:avoid}
.art-deep-story-steps li:not(:last-child)::before{content:'';position:absolute;left:20px;top:42px;bottom:0;border-left:1px solid #b5bdc8}
.art-deep-story-steps li>div{flex:1;min-width:0;padding-top:3px}
.art-deep-step-no{flex:0 0 42px;height:42px;border:1px solid #a7b8cc;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:23px;line-height:1;color:var(--navy)}
.art-deep-story-steps p{font-size:18px;margin:0}
.art-deep-story-steps strong{font-weight:500;color:var(--navy)}
.art-deep-question-shift{display:grid;grid-template-columns:minmax(0,1fr) 30px minmax(0,1.3fr);align-items:center;gap:18px;margin:18px 0 4px;padding:24px 0;border-top:1px solid #d7d5ce;border-bottom:1px solid #d7d5ce}
.art-deep-question-shift p{font-size:20px;line-height:1.8}
.art-deep-question-shift .art-deep-micro-label{font-size:15px}
.art-deep-question-shift strong{display:inline-block;font-size:23px}
.art-deep-shift-arrow{font-size:27px;color:#465774;text-align:center}
.art-deep-example-point{color:var(--navy);border-top:1px solid #d7d5ce;padding-top:24px;margin:12px 0 0!important}
.art-deep-meaning-diagram{margin:30px 0 34px}
.art-deep-meaning-compare{display:grid;grid-template-columns:1fr 1fr;gap:30px;border-top:1px solid #d7d5ce;padding:24px 0 0;margin:0}
.art-deep-meaning-compare>div+div{border-left:1px solid #d7d5ce;padding-left:30px}
.art-deep-meaning-compare>div{position:relative;padding-bottom:22px}
.art-deep-meaning-compare>div::after{content:'';position:absolute;bottom:0;left:50%;height:22px;border-left:1px solid #a7b8cc}
.art-deep-meaning-compare p:last-child{margin-bottom:0;font-size:20px}
.art-deep-meaning-compare strong{display:block;color:var(--navy)}
.art-deep-meaning-question{position:relative;text-align:center;padding:28px 20px;background:#f0f4f8;border-top:1px solid #a7b8cc;border-bottom:1px solid #a7b8cc}
.art-deep-meaning-question>p:last-child{font-size:23px;color:var(--navy);line-height:1.8;margin:0}
.art-deep-options-label{text-align:center;font-size:16px;color:#465774;margin:0!important;padding:28px 0 14px}
.art-deep-meaning-options{display:grid;grid-template-columns:1fr 1fr;gap:30px;position:relative;padding-top:20px}
.art-deep-meaning-options::before{content:'';position:absolute;top:0;left:25%;right:25%;height:20px;border:1px solid #a7b8cc;border-bottom:0}
.art-deep-meaning-options>div{display:flex;gap:16px;align-items:flex-start;padding-top:14px;min-width:0}
.art-deep-option-letter{font-size:23px;color:#465774;line-height:1.7;flex:0 0 24px}
.art-deep-meaning-options p{font-size:19px;line-height:1.85;margin:0}
.art-deep-meaning-options strong{font-weight:500;color:var(--navy)}
.art-deep-meaning-check{font-size:18px;text-align:center;border-bottom:1px solid #d7d5ce;padding:22px 0;margin-bottom:0!important;color:var(--navy)}
.art-deep-micro-label{font-size:15px;color:#465774;margin-bottom:10px!important}
.art-deep-conditions{max-width:940px;margin:32px auto 42px}
.art-deep-conditions dl{display:grid;grid-template-columns:1fr 1fr;gap:0 36px;margin:0;border-bottom:1px solid var(--line)}
.art-deep-conditions dl>div{display:block;padding:24px 0;border-top:1px solid var(--line)}
.art-deep-conditions dt{font-size:20px;line-height:1.8;color:var(--navy)}
.art-deep-conditions dt span{display:inline-block;font-size:23px;color:#465774;margin-right:16px}
.art-deep-conditions dd{margin:14px 0 0;font-size:18px;line-height:1.95}
.art-deep-small-note{font-size:15px;color:#465774;margin-top:20px!important;line-height:1.85!important}
.art-deep-evaluation{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:34px 0;background:#f7f9fc}
.art-deep-evaluation>div{padding:28px 24px;min-width:0}
.art-deep-evaluation>div+div{border-left:1px solid var(--line)}
.art-deep-evaluation h4{font-size:24px;margin-bottom:16px}
.art-deep-evaluation p{font-size:17px}
.art-deep-evaluation .art-deep-micro-label{font-size:15px}
.art-deep-evaluation .art-deep-record{font-size:19px;color:var(--navy);border-top:1px solid #c2cedd;border-bottom:1px solid #c2cedd;padding:12px 0;margin:0 0 18px}
.art-deep-record span{display:block;font-size:15px;color:#465774;margin-bottom:4px}
.art-deep-evaluation-example{font-size:16px!important;color:#465774;border-top:1px solid var(--line);padding-top:18px;margin-bottom:0!important}
.art-deep-closing{max-width:940px;margin:auto;padding:64px 0 42px}
.art-deep-closing h2{font-size:30px;line-height:1.75;margin-bottom:26px}
.art-deep-reading-links{display:grid;margin-top:28px}
.art-deep-reading-links a{padding:16px 0;min-height:44px;border-top:1px solid var(--line);font-size:17px}
.art-deep-reading-links a:last-child{border-bottom:1px solid var(--line)}
.art-deep-references{border-top:1px solid var(--line);padding:52px 0 24px;scroll-margin-top:24px}
.art-deep-references h2{font-size:29px;margin-bottom:24px}
.art-deep-references>p{font-size:17px;max-width:840px}
.art-deep-reference-list{list-style:none;padding:0;margin:28px 0 0}
.art-deep-reference-list li{display:flex;gap:22px;padding:24px 0;border-top:1px solid var(--line);scroll-margin-top:24px;font-size:17px}
.art-deep-reference-list p{margin:7px 0 0}
.art-deep-ref-number{font-size:24px;color:#687d9c;flex:0 0 34px}
.art-deep-source-scope{font-size:15px;line-height:1.85!important;color:#465774;max-width:890px;margin-top:12px!important}
.art-deep-reference-list li:target{background:#f7f9fc}
.art-deep-entry{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;margin:32px 0 48px;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.art-deep-entry .eyebrow{font-size:15px;margin:0 0 12px;color:#465774}
.art-deep-entry h2{font-size:26px!important;line-height:1.7!important;margin:0 0 12px!important}
.art-deep-entry h2 a{text-decoration:none}
.art-deep-entry h2 a:hover{text-decoration:underline;text-underline-offset:5px}
.art-deep-entry p{font-size:17px;max-width:740px;margin:0;line-height:1.9}
.art-deep-entry-action{display:inline-block;padding:12px 0;min-height:44px;font-size:16px;text-underline-offset:5px}
@media(max-width:800px){
 .art-deep-hero-heading{grid-template-columns:1fr;gap:26px}
 .art-deep-hero-copy{grid-template-columns:1fr;gap:22px}
 .art-deep-contents-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 30px}
 .art-deep-contents-grid a{flex-direction:row;align-items:flex-start;gap:16px}
 .art-deep-contents-grid img{width:32%;margin-top:6px}
 .art-deep-hero{padding-top:18px}
 .art-deep-chapter-header{grid-template-columns:1fr;gap:26px;margin-bottom:34px}
 .art-deep-chapter-header>div,.art-deep-chapter-header figure{max-width:650px}
 .art-deep-chapter-header figure{margin:auto}
 .art-deep-evaluation{grid-template-columns:1fr}
 .art-deep-evaluation>div+div{border-left:0;border-top:1px solid var(--line)}
 .art-deep-chapter-nav a{gap:8px;padding-inline:10px}
 .art-deep-entry{grid-template-columns:1fr;gap:12px}
}
@media(max-width:650px){
 .art-deep{font-size:18px}
 .art-deep .breadcrumbs{gap:3px 14px;margin-bottom:12px}
 .art-deep-hero h1{font-size:32px}
 .art-deep-hero-line{font-size:23px}
 .art-deep-hero-bottom{display:block}
 .art-deep-hero-bottom>span{display:block;margin-bottom:8px}
 .art-deep-hero-bottom>a{margin-top:6px}
 .art-deep-contents-grid{grid-template-columns:1fr}
 .art-deep-contents-grid a{gap:20px;padding-bottom:24px}
 .art-deep-contents-grid img{width:clamp(82px,25vw,120px);margin-top:10px}
 .art-deep-contents-grid .art-deep-number{font-size:22px;line-height:1.5;margin-bottom:3px}
 .art-deep-contents-grid strong{font-size:20px}
 .art-deep-contents-grid small{font-size:16px}
 .art-deep-contents-note{font-size:15px}
 .art-deep-contents h2{font-size:25px}
 .art-deep-chapter-nav{grid-template-columns:repeat(4,minmax(0,1fr))}
 .art-deep-chapter-nav a{flex-direction:column;gap:0;padding:6px 2px;font-size:17px;line-height:1.6;min-height:60px}
 .art-deep-chapter-nav span{font-size:15px}
 .art-deep-chapter-nav .art-deep-nav-contents{display:none}
 .art-deep-chapter{padding:50px 0 36px}
 .art-deep-chapter-header h2{font-size:27px}
 .art-deep h3{font-size:23px}
 .art-deep-compare,.art-deep-compare tbody,.art-deep-compare tr,.art-deep-compare th,.art-deep-compare td{display:block;width:100%}
 .art-deep-compare caption{display:block;font-size:21px}
 .art-deep-compare thead{display:none}
 .art-deep-compare tr{padding:22px 0;border-top:1px solid var(--line)}
 .art-deep-compare tr:last-child{border-bottom:1px solid var(--line)}
 .art-deep-compare th:first-child{width:100%;padding:0 0 16px;border:0;font-size:20px}
 .art-deep-compare tbody th{background:transparent}
 .art-deep-compare td{border:0;padding:10px 0 10px 58px;position:relative;font-size:17px}
 .art-deep-compare td::before{content:attr(data-label);position:absolute;left:0;top:12px;font-size:15px;color:#465774}
 .art-deep-research summary{padding:21px 36px 21px 0}
 .art-deep-research summary strong{font-size:20px}
 .art-deep-research summary::after{right:1px}
 .art-deep-detail-body{padding:22px 18px;font-size:17px}
 .art-deep-example{padding:26px 22px;margin:30px -4px}
 .art-deep-example h3{font-size:25px}
 .art-deep-story-steps li{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px 13px}
 .art-deep-story-steps li:not(:last-child)::before{display:none}
 .art-deep-story-steps li>div{display:contents}
 .art-deep-story-steps li>div>p,.art-deep-story-steps li>div>.art-deep-question-shift{grid-column:1/-1}
 .art-deep-step-no{flex-basis:34px;height:34px;font-size:21px}
 .art-deep-story-steps h4{font-size:19px;align-self:center;margin:0}
 .art-deep-question-shift{grid-template-columns:1fr;gap:12px;padding:20px 0}
 .art-deep-question-shift p{font-size:19px}
 .art-deep-question-shift strong{font-size:21px}
 .art-deep-shift-arrow{justify-self:start;transform:rotate(90deg);line-height:1.1;margin:2px 0}
 .art-deep-meaning-compare{grid-template-columns:1fr;gap:22px}
 .art-deep-meaning-compare>div+div{border-left:0;padding-left:0;border-top:1px solid #d7d5ce;padding-top:22px}
 .art-deep-meaning-compare>div{padding-bottom:0}
 .art-deep-meaning-compare>div::after{display:none}
 .art-deep-meaning-question{margin-top:24px;padding:24px 16px}
 .art-deep-meaning-question>p:last-child{font-size:21px}
 .art-deep-meaning-question::before{content:'';position:absolute;left:50%;top:-24px;height:23px;border-left:1px solid #a7b8cc}
 .art-deep-meaning-options{grid-template-columns:1fr;gap:18px;padding-top:0}
 .art-deep-meaning-options::before{display:none}
 .art-deep-meaning-options>div{padding:16px 0 0;border-top:1px solid #d7d5ce}
 .art-deep-meaning-options p{font-size:19px}
 .art-deep-meaning-check{text-align:left}
 .art-deep-takeaway{padding:24px 22px;margin:32px 0 24px}
 .art-deep-takeaway strong{font-size:22px}
 .art-deep-conditions dl{grid-template-columns:1fr;gap:0}
 .art-deep-conditions dl>div{grid-template-columns:1fr;gap:10px;padding:22px 0}
 .art-deep-conditions dt span{display:inline;font-size:22px;margin-right:16px}
 .art-deep-evaluation>div{padding:25px 22px}
 .art-deep-closing{padding-top:50px}
 .art-deep-closing h2{font-size:25px}
 .art-deep-references h2{font-size:25px}
 .art-deep-reference-list li{gap:12px;font-size:16px}
 .art-deep-ref-number{flex-basis:26px;font-size:22px}
 .art-deep-entry h2{font-size:24px!important}
}
@media print{
 .art-deep{font-size:12pt;max-width:none}
 .art-deep .breadcrumbs,.art-deep-back,.art-deep .save-material-row,.art-deep-chapter-nav{display:none}
 .art-deep-hero h1{font-size:28pt}
 .art-deep-hero-line{font-size:18pt}
 .art-deep-hero-copy,.art-deep-chapter-header{display:block}
 .art-deep-hero-copy p{margin-bottom:14pt}
 .art-deep-chapter{break-before:page}
 .art-deep-chapter-header figure{width:75%;margin:18pt auto}
 .art-deep-chapter-header h2,.art-deep-closing h2{font-size:22pt}
 .art-deep-research summary::after{display:none}
 .art-deep-story-steps li,.art-deep-conditions dl>div,.art-deep-reference-list li{break-inside:avoid}
 .art-deep-question-shift,.art-deep-meaning-diagram{break-inside:avoid}
 .art-deep-evaluation{display:block}
 .art-deep-evaluation>div{break-inside:avoid}
 .art-deep-evaluation>div+div{border-left:0;border-top:1px solid var(--line)}
}