/* Optional immersive layout. Original skins and layout remain independent. */
:root[data-skin=expedition]{--bg:#f5f4ee;--surface:#fffdf6;--ink:#202e29;--muted:#59665e;--line:#d5d8cf;--accent:#786030;--hero:#101918;--hero-ink:#f4f1e7;--hero-muted:#d8dcd5;--button:#d2b17c;--button-ink:#17201b;--radius:5px;--display:Georgia,"Songti SC",serif;--body:"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color-scheme:light}
:root[data-skin=expedition][data-mode=dark]{--bg:#101918;--surface:#192321;--ink:#f3f0e7;--muted:#b9c1ba;--line:#35403b;--accent:#d2b17c;color-scheme:dark}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.ui-icon{display:inline-block;width:22px;height:22px;flex-shrink:0;vertical-align:middle}
[data-mode=dark] .ui-icon{filter:invert(93%) sepia(15%) saturate(190%) hue-rotate(351deg)}
[data-layout=immersive] body{line-height:1.75;-webkit-font-smoothing:antialiased}
[data-layout=immersive] .wrap{width:min(1256px,calc(100% - 96px))}
[data-layout=immersive] main:not(.home-main){padding-top:28px;min-height:60vh}
[data-layout=immersive] a{text-decoration-thickness:1px}
[data-layout=immersive] .site-header{min-height:64px;gap:30px;padding-block:12px;flex-wrap:nowrap}
[data-layout=immersive] .brand{font:700 29px/1.2 Georgia,serif;letter-spacing:-.5px;min-width:0;flex-shrink:1;overflow-wrap:anywhere}
.brand-context{font-size:11px;letter-spacing:.05em;color:var(--muted);border-left:1px solid var(--line);padding-left:22px;white-space:nowrap}
[data-layout=immersive] .site-header nav{gap:30px;flex-shrink:0;align-items:center}
[data-layout=immersive] .site-header nav a{font-size:14px;min-height:44px;display:flex;align-items:center}
[data-layout=immersive] #theme-toggle{width:44px;height:44px;padding:10px;border:0;flex-shrink:0;background:transparent}
[data-layout=immersive] #theme-toggle:hover{background:var(--surface)}
.theme-sun{display:none}[data-mode=dark] .theme-sun{display:inline-block}[data-mode=dark] .theme-moon{display:none}
[data-layout=immersive] .home-main{max-width:none;width:100%}
.expedition-hero{position:relative;isolation:isolate;background:var(--hero);color:var(--hero-ink);overflow:hidden}
.expedition-hero:not(.has-art) .hero-content{min-height:0;padding-block:48px}
.expedition-art{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;object-position:center}
.expedition-hero.has-art:after{content:"";position:absolute;inset:0;background:rgb(6 13 12 / .15);z-index:-1;pointer-events:none}
.hero-content{padding-block:62px 48px;min-height:480px}
.hero-kicker{font-size:12px;letter-spacing:.12em;color:var(--button);margin:0 0 12px}
.expedition-hero h1{font-family:var(--body);font-size:clamp(42px,4.7vw,68px);font-weight:750;line-height:1.16;letter-spacing:-.025em;max-width:780px;margin:0 0 20px;overflow-wrap:anywhere}
.hero-description{font-size:18px;line-height:1.7;max-width:680px;color:var(--hero-muted);margin:0 0 30px}
.hero-search{display:flex;align-items:center;width:min(680px,100%);min-height:58px;border:1px solid #708075;border-radius:5px;background:rgb(16 25 24 / .92);overflow:hidden}
.hero-search:focus-within{outline:3px solid var(--button);outline-offset:4px}
.hero-search>.ui-icon{margin-left:20px;filter:invert(90%);width:24px;height:24px}
.hero-search input{border:0;border-radius:0;background:transparent;color:#f3f0e7;min-width:0;min-height:56px;font-size:16px;padding:14px 16px;outline:none;flex:1}
.hero-search input::placeholder{color:#b9c1ba;opacity:1}
.hero-search input:focus-visible{outline:none}
.hero-search button{align-self:stretch;min-width:108px;padding:12px 24px;border-radius:0;border:0;background:var(--button);color:var(--button-ink);font-size:15px;font-weight:650}
.hero-search button:hover{background:#e5c794}
.hero-search button:focus-visible{outline:3px solid #17201b;outline-offset:-6px}
.task-links{display:flex;align-items:center;flex-wrap:wrap;gap:8px 0;margin-top:24px;max-width:780px}
.task-links a{display:flex;align-items:center;gap:14px;padding:4px 25px;min-height:48px;border-right:1px solid rgb(230 223 207 / .24);font-size:14px;font-weight:550;text-decoration:none;color:var(--hero-ink)}
.task-links a:first-child{padding-left:0}.task-links a:last-child{border-right:0}
.task-links a:hover{color:var(--button)}
.task-links .ui-icon{width:30px;height:30px;filter:invert(75%) sepia(24%) saturate(595%) hue-rotate(356deg)}
.expedition-hero .video-link{display:inline-block;margin-top:18px;color:var(--hero-ink)}
.expedition-hero .facts{max-width:780px}
.featured-section{padding-top:28px}
.featured-section>.eyebrow{margin-bottom:0;font-size:13px;letter-spacing:.06em}
.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:4px}
.section-heading h2{font-size:32px;margin:0;letter-spacing:-.01em}
.section-heading>a{display:flex;align-items:center;gap:10px;font-size:13px;min-height:44px;white-space:nowrap;text-decoration:none;color:var(--accent)}
.section-heading>a .ui-icon{width:18px;height:18px}
.section-intro{font-size:14px;color:var(--muted);margin:0 0 16px}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;list-style:none;margin:0;padding:0}
.feature-grid>li{min-width:0}
.feature-card{display:block;text-decoration:none;color:var(--ink);height:100%;border-radius:3px}
.feature-image{display:block;width:100%;aspect-ratio:2.08;height:auto;object-fit:cover;border-radius:2px;transition:filter .2s ease}
.feature-card:hover .feature-image{filter:brightness(1.12)}
.feature-copy{padding-top:14px}
.feature-copy h3{font-size:21px;line-height:1.4;margin:0 0 7px;overflow-wrap:anywhere}
.feature-copy p{font-size:14px;line-height:1.8;margin:0;color:var(--muted)}
.feature-card:not(:has(img)){padding:22px 0;border-top:1px solid var(--line)}
.recent-section{margin-top:32px}
.recent-section .section-heading h2{font-size:20px}
.recent-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--accent)}
.recent-list li{display:grid;grid-template-columns:96px minmax(180px,1fr) minmax(220px,1.35fr) 20px;gap:20px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line);min-width:0}
.recent-list time{font-size:12px;color:var(--muted)}
.recent-list a{font-size:14px;text-decoration:none;overflow-wrap:anywhere}
.recent-list p{font-size:13px;color:var(--muted);margin:0}
.recent-list .ui-icon{width:18px;height:18px}
.browse-modules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:40px}
.browse-modules>a{display:flex;gap:14px;align-items:center;min-height:56px;padding-block:12px;border-bottom:1px solid var(--line);text-decoration:none;min-width:0}
.browse-modules .meta{margin-left:auto;white-space:nowrap}
[data-layout=immersive] footer{margin-top:56px!important;padding-block:28px}
[data-layout=immersive] footer strong{font-size:23px}
[data-layout=immersive] footer p{font-size:13px}
[data-layout=immersive] footer nav a{min-height:44px;display:inline-flex;align-items:center}
/* Inner pages keep an uncluttered reading surface and share the navigation. */
[data-layout=immersive] main:not(.home-main)>h1{font-family:var(--body);font-size:clamp(30px,3.3vw,46px);line-height:1.35;max-width:980px}
[data-layout=immersive] .breadcrumb{margin:4px 0 24px;gap:8px;font-size:13px}
[data-layout=immersive] .breadcrumb a{min-height:32px;display:inline-flex;align-items:center}
[data-layout=immersive] .meta{font-size:13px;letter-spacing:0;line-height:1.7}
[data-layout=immersive] .article-meta{margin:-8px 0 24px;color:var(--muted)}
[data-layout=immersive] .quick-answer{max-width:940px;padding:24px 28px;border-left:3px solid var(--accent);margin:0 0 20px}
[data-layout=immersive] .quick-answer h2{font-family:var(--body);font-size:13px}
[data-layout=immersive] .quick-answer p{max-width:780px}
[data-layout=immersive] .answer-actions a{display:inline-flex;align-items:center;min-height:36px;font-size:14px}
[data-layout=immersive] .next-steps{margin:0 0 24px;gap:6px 12px;font-size:13px;max-width:940px}
[data-layout=immersive] .next-steps a{font-size:13px;min-height:38px;display:inline-flex;align-items:center;padding:5px 12px}
[data-layout=immersive] .article-layout{grid-template-columns:minmax(0,760px) minmax(190px,1fr);gap:72px;max-width:1140px}
[data-layout=immersive] .article-layout article{overflow-wrap:anywhere}
[data-layout=immersive] .article-layout article h2{font-size:28px;line-height:1.4;scroll-margin-top:28px}
[data-layout=immersive] .article-layout article p,[data-layout=immersive] .article-layout article li{line-height:1.9;font-size:17px}
[data-layout=immersive] .toc a{min-height:36px;font-size:14px;line-height:1.6;padding-block:6px;margin:4px 0}
[data-layout=immersive] .toc a[aria-current]{color:var(--accent);font-weight:650}
.mobile-toc{display:none}
.article-cover{margin-top:36px}
[data-layout=immersive] .table-wrap{border:1px solid var(--line);border-radius:4px}
[data-layout=immersive] table{margin:0;min-width:560px}
[data-layout=immersive] th,[data-layout=immersive] td{padding:14px 16px}
[data-layout=immersive] table th:first-child{position:sticky;left:0;z-index:1;background:var(--surface)}
[data-layout=immersive] caption{padding:12px 16px}
[data-layout=immersive] .table-hint{font-size:13px;color:var(--muted);margin:8px 0}
[data-layout=immersive] .entry-list>li{padding:24px 0;gap:30px}
[data-layout=immersive] .entry-list h2,[data-layout=immersive] .entry-list h3{font-family:var(--body);font-size:22px;line-height:1.5}
[data-layout=immersive] .entry-list :is(h2,h3) a{display:inline-block}
[data-layout=immersive] .entry-list .read-link{min-width:64px;min-height:44px;display:flex;align-items:center;justify-content:center}
[data-layout=immersive] #search-tools{border-radius:5px;margin-top:24px}
[data-layout=immersive] #query{font-size:16px;min-height:50px}
[data-layout=immersive] #clear-search{min-height:44px}
mark{background:#e6c78b;color:#17201b;border-radius:2px}
@media(min-width:1000px){.hero-kicker{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}}
@media(max-width:1100px){[data-layout=immersive] .wrap{width:calc(100% - 64px)}.brand-context{display:none}[data-layout=immersive] .site-header{gap:20px}[data-layout=immersive] .site-header nav{gap:24px}.hero-content{padding-block:56px 40px}.task-links a{padding-inline:20px}.feature-grid{gap:20px}.recent-list li{grid-template-columns:88px 1fr 1.1fr 18px;gap:16px}}
@media(max-width:850px){[data-layout=immersive] .site-header{flex-wrap:wrap;gap:8px 16px;padding-block:14px 8px;min-height:0}[data-layout=immersive] .site-header nav{order:3;width:100%;margin:0;gap:30px;overflow-x:auto;overscroll-behavior-inline:contain}[data-layout=immersive] #theme-toggle{margin-left:auto}.hero-content{min-height:460px;padding-block:36px}.expedition-hero h1{font-size:52px;max-width:620px}.hero-description{font-size:16px;max-width:560px}.feature-copy h3{font-size:19px}.recent-list li{grid-template-columns:90px 1fr 18px}.recent-list p{grid-column:2;grid-row:auto}.recent-list .ui-icon{grid-column:3;grid-row:1}[data-layout=immersive] .article-layout{display:block}[data-layout=immersive] .toc{display:none}.mobile-toc{display:block;padding:12px 0;margin:0 0 24px;max-width:760px}.mobile-toc summary{min-height:32px;line-height:32px;font-size:14px}.mobile-toc nav{display:grid;gap:0;padding-top:10px}.mobile-toc a{font-size:14px;text-decoration:none;padding:10px 12px;min-height:44px}.browse-modules{gap:18px}.browse-modules>a{flex-wrap:wrap}.browse-modules .ui-icon{display:none}}
@media(max-width:600px){[data-layout=immersive] .wrap{width:calc(100% - 40px)}[data-layout=immersive] .brand{font-size:24px;letter-spacing:-.6px}[data-layout=immersive] .site-header nav{gap:26px}[data-layout=immersive] .site-header nav a{font-size:13px;white-space:nowrap}[data-layout=immersive] .site-header{column-gap:10px}.expedition-art{object-position:64% center}.expedition-hero.has-art:after{background:rgb(6 13 12 / .53)}.hero-content{min-height:440px;padding-block:30px 28px}.hero-kicker{font-size:11px;margin-bottom:14px}.expedition-hero h1{font-size:43px;line-height:1.2;letter-spacing:-1px;margin-bottom:16px}.hero-description{font-size:15px;line-height:1.8;margin-bottom:24px;max-width:360px}.hero-search{min-height:54px}.hero-search input{font-size:16px;padding:12px 9px;min-height:52px}.hero-search>.ui-icon{width:20px;height:20px;margin-left:12px}.hero-search button{min-width:70px;padding:12px 15px;font-size:14px}.task-links{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px;margin-top:18px}.task-links a{padding:4px 0;border:0;gap:10px;font-size:13px;min-height:44px}.task-links .ui-icon{width:24px;height:24px}.featured-section{padding-top:28px}.section-heading h2{font-size:27px}.section-heading>a{font-size:12px;gap:6px}.section-intro{font-size:13px;line-height:1.8;margin-bottom:20px}.feature-grid{grid-template-columns:1fr;gap:28px}.feature-image{aspect-ratio:1.875}.feature-copy{padding-top:12px}.feature-copy h3{font-size:22px;line-height:1.4}.feature-copy p{font-size:14px;line-height:1.85}.recent-section{margin-top:36px}.recent-list li{grid-template-columns:1fr 18px;gap:6px 10px;padding-block:16px}.recent-list time{grid-column:1;font-size:12px}.recent-list a{grid-column:1;grid-row:2;font-size:15px}.recent-list p{grid-column:1;grid-row:3;font-size:13px}.recent-list .ui-icon{grid-column:2;grid-row:2}.browse-modules{grid-template-columns:1fr;gap:0;margin-top:26px}.browse-modules>a{flex-wrap:nowrap;min-height:56px}.browse-modules .ui-icon{display:block}[data-layout=immersive] footer{margin-top:36px!important}[data-layout=immersive] footer nav{gap:4px 22px}[data-layout=immersive] footer p{font-size:12px;line-height:1.9}[data-layout=immersive] main:not(.home-main){padding-top:16px}[data-layout=immersive] main:not(.home-main)>h1{font-size:29px;line-height:1.4;margin-bottom:16px}[data-layout=immersive] .breadcrumb{margin-bottom:16px;font-size:12px}[data-layout=immersive] .article-meta{font-size:12px;margin:0 0 20px}[data-layout=immersive] .quick-answer{padding:20px;margin-bottom:14px}[data-layout=immersive] .quick-answer p{font-size:15px;line-height:1.85}[data-layout=immersive] .answer-actions{gap:8px 20px}[data-layout=immersive] .answer-actions a{min-height:44px}[data-layout=immersive] .next-steps{margin-bottom:16px}[data-layout=immersive] .next-steps>span{width:100%}[data-layout=immersive] .article-layout article p,[data-layout=immersive] .article-layout article li{font-size:16px}[data-layout=immersive] .article-layout article h2{font-size:24px}[data-layout=immersive] .entry-list>li{gap:12px}[data-layout=immersive] .entry-list h2,[data-layout=immersive] .entry-list h3{font-size:19px}[data-layout=immersive] .entry-list .read-link{margin-top:0;min-width:48px;padding:8px}.mobile-toc{margin-bottom:22px}[data-layout=immersive] .lead{font-size:16px}[data-layout=immersive] #search-tools{padding:18px}}
@media(prefers-reduced-motion:reduce){.feature-image{transition:none}}
/* Shared article reading system, promoted from the approved game-site implementation. */
[data-layout=immersive] .reading-layout{grid-template-columns:minmax(0,840px) 240px;max-width:none;gap:64px;align-items:start}
[data-layout=immersive] .article-content{min-width:0}
[data-layout=immersive] .article-content>h1{font-family:var(--display);font-size:clamp(32px,3.9vw,52px);line-height:1.2;letter-spacing:-.03em;margin:10px 0 22px;max-width:28ch}
[data-layout=immersive] .article-content>.eyebrow{font-size:11px;letter-spacing:.13em;color:var(--accent);margin:0}
[data-layout=immersive] .article-content>.article-meta{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:26px;font-size:12px;color:var(--muted)}
[data-layout=immersive] .reading-layout .quick-answer{max-width:none;padding:24px 28px;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:4px}
[data-layout=immersive] .reading-layout .quick-answer p{font-size:17px;line-height:1.8}
[data-layout=immersive] .reading-layout .toc{position:sticky;top:28px;max-height:calc(100vh - 56px);overflow:auto;padding:8px 0 0 24px;border-left:1px solid var(--line)}
[data-layout=immersive] .reading-layout .toc a{padding:10px 12px;font-size:13px;line-height:1.6;min-height:44px;border-left:2px solid transparent;text-decoration:none;color:var(--muted)}
[data-layout=immersive] .reading-layout .toc a[aria-current=location]{border-color:var(--accent);background:var(--surface);color:var(--accent)}
[data-layout=immersive] .reading-layout article section{margin-top:40px}
[data-layout=immersive] .reading-layout article p{max-width:70ch}
[data-layout=immersive] .reading-layout .next-steps{border-top:1px solid var(--line);padding-top:24px;margin-top:32px}
[data-layout=immersive] .table-wrap{border:1px solid var(--line);background:var(--surface);border-radius:4px}
[data-layout=immersive] .table-wrap table{min-width:0;width:100%;table-layout:fixed}
[data-layout=immersive] .table-wrap th,[data-layout=immersive] .table-wrap td{padding:16px;font-size:14px;line-height:1.75;overflow-wrap:anywhere}
[data-layout=immersive] .table-wrap th[scope=row]{font-weight:600}
.table-finder{margin:20px 0}.table-finder label{display:block;font-size:13px;font-weight:600;margin-bottom:8px}.table-finder>div{display:flex;gap:10px}.table-finder input{flex:1;min-width:0;font-size:16px;padding:12px 16px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:4px}.table-finder button{min-height:46px;flex-shrink:0;background:var(--surface);border:1px solid var(--line);color:var(--ink);font-size:13px}.table-finder [role=status]{font-size:12px!important;color:var(--muted);margin:8px 0 0}
@media(max-width:1100px){[data-layout=immersive] .reading-layout{grid-template-columns:minmax(0,1fr) 220px;gap:32px}}
@media(max-width:900px){[data-layout=immersive] .reading-layout{display:block}[data-layout=immersive] .reading-layout .toc{display:none}[data-layout=immersive] .mobile-toc{display:block;margin-top:24px}[data-layout=immersive] .mobile-toc summary{min-height:52px;display:flex;align-items:center;justify-content:space-between}[data-layout=immersive] .mobile-toc summary:after{content:'＋'}[data-layout=immersive] .mobile-toc[open] summary:after{content:'−'}}
@media(max-width:600px){[data-layout=immersive] .article-content>h1{font-size:32px;line-height:1.3}[data-layout=immersive] .reading-layout .quick-answer{padding:20px}[data-layout=immersive] .reading-layout .quick-answer p{font-size:16px}[data-layout=immersive] .table-wrap{border:0;background:transparent;overflow:visible}[data-layout=immersive] .table-wrap table,[data-layout=immersive] .table-wrap tbody{display:block}[data-layout=immersive] .table-wrap caption{display:block;padding:0 0 14px;font-size:12px}[data-layout=immersive] .table-wrap thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}[data-layout=immersive] .table-wrap tr{display:block;background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:18px;margin-bottom:14px}[data-layout=immersive] .table-wrap th[scope=row],[data-layout=immersive] .table-wrap td{display:block;width:100%;padding:0;border:0;font-size:15px;background:transparent}[data-layout=immersive] .table-wrap th[scope=row]{font-size:17px;margin-bottom:16px}[data-layout=immersive] .table-wrap td+td{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}[data-layout=immersive] .table-wrap td:before{content:attr(data-label);display:block;color:var(--muted);font-size:11px;margin-bottom:6px}[data-layout=immersive] .table-finder>div{flex-wrap:wrap}[data-layout=immersive] .table-finder input{width:100%}}