:root{--black:#111;--white:#fff;--gray:#777;--light:#f4f4f2;--line:#dededb;--max:1200px;--header:72px;--sans:"PingFang SC","Microsoft YaHei UI",Arial,sans-serif;--serif:Georgia,"Songti SC","SimSun",serif}
*{box-sizing:border-box}html{max-width:100%;overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:90px}body{max-width:100%;margin:0;color:var(--black);background:#fff;font:16px/1.7 var(--sans);overflow-x:clip}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}button,input{font:inherit}:focus-visible{outline:2px solid #111;outline-offset:4px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;z-index:999;top:8px;left:8px;padding:10px 14px;color:#fff;background:#111;transform:translateY(-150%)}.skip-link:focus{transform:none}
.site-header{position:fixed;z-index:100;inset:0 0 auto;height:var(--header);background:rgba(255,255,255,.9);border-bottom:1px solid transparent;backdrop-filter:blur(18px);transition:.25s}.site-header.scrolled{border-color:var(--line);box-shadow:0 8px 30px rgba(0,0,0,.04)}.header-inner{width:min(calc(100% - 40px),1320px);height:100%;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;align-items:center;gap:12px;min-width:max-content}.brand>span:last-child{display:flex;flex-direction:column;line-height:1.1}.brand b{font-size:16px}.brand small{margin-top:5px;color:#888;font:9px/1 Arial,sans-serif;letter-spacing:1.4px}.brand-icon{width:30px;height:36px;display:flex;justify-content:space-between;padding:3px 6px;border-inline:2px solid #111}.brand-icon i{position:absolute}.brand-icon:before,.brand-icon:after,.brand-icon i{content:"";width:18px;height:2px;background:#111}.brand-icon{position:relative}.brand-icon:before{position:absolute;top:8px;left:4px}.brand-icon:after{position:absolute;bottom:8px;left:4px}.brand-icon i:nth-child(1){top:17px;left:4px}.main-nav{height:100%;display:flex;align-items:center;gap:28px}.main-nav a{position:relative;height:100%;display:grid;place-items:center;color:#555;font-size:13px}.main-nav a:after{content:"";position:absolute;left:50%;bottom:13px;width:0;height:1px;background:#111;transform:translateX(-50%);transition:.2s}.main-nav a:hover,.main-nav a.active{color:#111}.main-nav a:hover:after,.main-nav a.active:after{width:100%}.menu-toggle{display:none;width:44px;height:44px;padding:12px;border:1px solid #ddd;background:#fff;cursor:pointer}.menu-toggle span{display:block;height:1px;margin:5px 0;background:#111;transition:.2s}
.home-hero{position:relative;height:min(820px,94vh);min-height:690px;padding-top:var(--header);overflow:hidden;background:#ddd}.home-hero>img,.hero-overlay{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.home-hero>img{object-position:center}.hero-overlay{background:linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.9) 36%,rgba(255,255,255,.1) 72%)}.hero-content{position:relative;z-index:2;width:min(calc(100% - 40px),var(--max));height:100%;margin:auto;padding-bottom:48px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.eyebrow{font:600 10px/1.4 Arial,sans-serif;letter-spacing:2px;color:#777}.hero-content h1{margin:20px 0 25px;font:700 clamp(58px,7vw,98px)/1.02 var(--serif);letter-spacing:0}.hero-content h1 em{font-weight:400}.hero-content>p{max-width:580px;margin:0;color:#555;font-size:17px;line-height:1.9}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:34px}.dark-button,.light-button,.outline-button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:11px 24px;border:1px solid #111;background:#111;color:#fff;font-size:13px;font-weight:600;transition:.2s}.dark-button:hover{background:#333;transform:translateY(-2px)}.text-button{font-size:13px;border-bottom:1px solid #111}.text-button span{margin-left:8px}.hero-index{position:absolute;z-index:3;right:34px;bottom:30px;display:grid;grid-template-columns:auto auto;gap:3px 12px;padding:18px 20px;background:rgba(255,255,255,.86);backdrop-filter:blur(12px)}.hero-index span{font:10px/1.5 Arial;color:#999}.hero-index p{margin:0;font-size:12px}
.section{width:min(calc(100% - 40px),var(--max));margin:auto;padding:110px 0}.intro-section{max-width:940px;text-align:center}.intro-section h2{margin:18px 0 24px;font:600 clamp(38px,5vw,64px)/1.28 var(--serif)}.intro-section p{max-width:680px;margin:auto;color:#666;font-size:17px}.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px}.section-title h2{margin:8px 0 0;font:600 clamp(34px,4vw,48px)/1.2 var(--serif)}.section-title>a{font-size:12px;border-bottom:1px solid #111}.section-title>p{max-width:430px;margin:0;color:#777;font-size:14px}.featured-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.feature-card{display:grid;grid-template-columns:180px 1fr;min-height:240px;border:1px solid var(--line);background:#fff;transition:.25s}.feature-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.07)}.feature-image{position:relative;padding:18px;background:#111;color:#fff;overflow:hidden}.feature-image:after{content:"";position:absolute;left:44px;bottom:-35px;width:64px;height:200px;border-inline:6px solid #fff;transform:rotate(24deg);opacity:.8}.feature-image span{font-size:10px}.feature-image b{position:absolute;left:18px;bottom:14px;font:400 45px/1 var(--serif)}.feature-card>div:last-child{padding:24px;display:flex;align-items:flex-start;flex-direction:column}.feature-card small{color:#999;font-size:10px}.feature-card h3{margin:14px 0 10px;font:600 20px/1.45 var(--serif)}.feature-card p{margin:0;color:#777;font-size:12px}.feature-card>div>a{margin-top:auto;font-size:12px}.feature-card>div>a span{margin-left:8px}.category-band{background:var(--light)}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.category-card{position:relative;min-height:250px;padding:24px;border:1px solid #ddd;background:#fff;transition:.25s}.category-card:hover{transform:translateY(-3px);border-color:#111}.category-card>span{font:11px/1 Arial;color:#999}.category-card h3{margin:45px 0 12px;font:600 25px/1.3 var(--serif)}.category-card p{margin:0;color:#777;font-size:12px}.category-card i{position:absolute;right:22px;bottom:19px;font-style:normal}.rules-showcase{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:100px}.rules-visual{position:relative;min-height:620px;background:#e6e5e2;overflow:hidden}.rules-visual:before{content:"";position:absolute;inset:12%;border:1px solid rgba(0,0,0,.12)}.rules-visual>span{position:absolute;left:24px;bottom:20px;font:10px Arial;letter-spacing:1.5px}.ladder-object{position:absolute;left:50%;top:50%;width:170px;height:480px;border-inline:18px solid #222;transform:translate(-50%,-50%) rotate(12deg);filter:drop-shadow(32px 25px 16px rgba(0,0,0,.18))}.ladder-object i{position:absolute;left:-2px;width:174px;height:14px;background:#222}.ladder-object i:nth-child(1){top:55px}.ladder-object i:nth-child(2){top:140px}.ladder-object i:nth-child(3){top:225px}.ladder-object i:nth-child(4){top:310px}.ladder-object i:nth-child(5){top:395px}.rules-copy h2{margin:16px 0 32px;font:600 clamp(38px,4vw,55px)/1.25 var(--serif)}.rules-copy ol{margin:0 0 32px;padding:0;list-style:none}.rules-copy li{display:flex;gap:22px;padding:17px 0;border-top:1px solid var(--line)}.rules-copy li>b{font:11px Arial;color:#999}.rules-copy h3{margin:0;font-size:15px}.rules-copy p{margin:3px 0 0;color:#777;font-size:12px}.recommend-list{border-top:1px solid var(--line)}.recommend-row{display:grid;grid-template-columns:110px 1fr 1fr 44px;align-items:center;gap:25px;min-height:115px;border-bottom:1px solid var(--line)}.recommend-row>span{color:#888;font-size:11px}.recommend-row h3{margin:0;font:600 19px/1.4 var(--serif)}.recommend-row p{margin:0;color:#888;font-size:12px}.recommend-row>a:last-child{width:42px;height:42px;display:grid;place-items:center;border:1px solid #ddd}.recommend-row>a:last-child:hover{color:#fff;background:#111}.home-cta{padding:110px 20px;color:#fff;background:#111;text-align:center}.home-cta h2{margin:20px 0 32px;font:500 clamp(42px,6vw,70px)/1.25 var(--serif)}.home-cta .eyebrow{color:#aaa}.light-button{color:#111;background:#fff;border-color:#fff}.light-button:hover{background:#ddd}
.inner-main{padding-top:var(--header)}.page-hero,.article-hero{background:var(--light);border-bottom:1px solid var(--line)}.page-hero>div,.article-hero>div{width:min(calc(100% - 40px),var(--max));margin:auto;padding:85px 0 72px}.crumb{display:flex;gap:9px;margin-bottom:40px;color:#999;font-size:11px}.crumb a:hover{color:#111}.page-hero h1,.article-hero h1{max-width:940px;margin:15px 0 18px;font:600 clamp(42px,5vw,68px)/1.17 var(--serif)}.page-hero p,.article-hero p{max-width:720px;margin:0;color:#666;font-size:16px}.listing-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;align-items:start;gap:60px}.article-cards{display:grid;gap:14px}.article-card{padding:28px;border:1px solid var(--line);transition:.2s}.article-card:hover{transform:translateY(-3px);border-color:#111}.card-meta{display:flex;justify-content:space-between;color:#999;font-size:10px}.article-card h2{margin:20px 0 10px;font:600 25px/1.4 var(--serif)}.article-card p{margin:0;color:#777;font-size:13px}.read-link{display:inline-block;margin-top:24px;font-size:12px;border-bottom:1px solid #111}.side-note{position:sticky;top:95px;padding:27px;background:#111;color:#fff}.side-note h2{margin:15px 0;font:600 26px/1.3 var(--serif)}.side-note>p{color:#aaa;font-size:12px}.side-note nav{display:grid;margin-top:25px}.side-note nav a{display:flex;justify-content:space-between;padding:12px 0;border-top:1px solid #333;font-size:12px}.article-hero{background:#fff}.article-hero>div{padding-block:85px}.article-hero p{font-size:17px;line-height:1.9}.byline{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:30px;color:#999;font-size:11px}.byline span:first-child{color:#333}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 270px;justify-content:space-between;gap:60px}.toc{padding:24px;background:var(--light);margin-bottom:52px}.toc>b{font:600 14px var(--serif)}.toc ol{display:grid;grid-template-columns:1fr 1fr;gap:7px 30px;margin:14px 0 0;padding-left:20px;color:#666;font-size:12px}.article-body>section{position:relative;margin-bottom:48px;scroll-margin-top:92px}.article-body>section>span{position:absolute;top:9px;left:0;color:#aaa;font:10px Arial}.article-body h2{margin:0 0 18px;padding-left:40px;font:600 28px/1.4 var(--serif)}.article-body p{margin:0 0 17px;color:#454545;font-size:16px;line-height:2;text-align:justify}.topic-tags{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding-top:24px;border-top:1px solid var(--line);font-size:11px}.topic-tags a{padding:5px 10px;background:var(--light)}.article-aside>div{position:sticky;top:95px;padding:24px;border:1px solid var(--line)}.article-aside h2{font:600 20px var(--serif)}.article-aside a:not(.outline-button){display:grid;gap:4px;padding:14px 0;border-top:1px solid var(--line)}.article-aside small{color:#999}.article-aside a b{font:600 13px/1.55 var(--serif)}.outline-button{width:100%;margin-top:18px;color:#111;background:#fff}.outline-button:hover{color:#fff;background:#111}
.site-footer{padding:70px 20px 24px;background:#f2f2f0;border-top:1px solid var(--line)}.footer-main{width:min(100%,var(--max));margin:auto;display:grid;grid-template-columns:1.3fr .6fr .6fr 1fr;gap:55px}.footer-intro p,.footer-note p{max-width:310px;color:#777;font-size:12px}.footer-links{display:flex;align-items:flex-start;flex-direction:column;gap:8px}.footer-links b,.footer-note b{margin-bottom:8px;font-size:13px}.footer-links a{color:#777;font-size:12px}.footer-links a:hover{color:#111}.footer-note{padding-left:20px;border-left:1px solid #bbb}.footer-bottom{width:min(100%,var(--max));margin:50px auto 0;padding-top:18px;display:flex;justify-content:space-between;border-top:1px solid #d4d4d0;color:#999;font:9px Arial;letter-spacing:1px}.back-top{position:fixed;z-index:80;right:20px;bottom:20px;width:44px;height:44px;border:1px solid #111;background:#fff;opacity:0;visibility:hidden;transform:translateY(10px);transition:.2s}.back-top.visible{opacity:1;visibility:visible;transform:none}.back-top:hover{color:#fff;background:#111}.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:960px){.main-nav{gap:15px}.main-nav a{font-size:12px}.featured-grid{grid-template-columns:1fr}.category-grid{grid-template-columns:repeat(2,1fr)}.rules-showcase{gap:45px}.listing-layout,.article-layout{grid-template-columns:1fr}.side-note{position:static}.article-aside{display:none}.footer-main{grid-template-columns:1.2fr .6fr .6fr}.footer-note{grid-column:1/-1}}
@media(max-width:760px){:root{--header:64px}.header-inner{width:calc(100% - 28px)}.menu-toggle{display:block}.menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(6px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.main-nav{position:fixed;inset:var(--header) 0 auto;height:auto;display:grid;grid-template-columns:1fr 1fr;gap:1px;padding:12px 14px 20px;background:#fff;border-bottom:1px solid var(--line);opacity:0;visibility:hidden;transform:translateY(-110%);transition:.25s}.main-nav.open{opacity:1;visibility:visible;transform:none}.main-nav a{height:48px;display:flex;justify-content:flex-start;padding:0 12px;border:1px solid #eee}.main-nav a:after{display:none}.menu-open{overflow:hidden}.home-hero{height:auto;min-height:720px}.hero-overlay{background:linear-gradient(90deg,rgba(255,255,255,.97),rgba(255,255,255,.68)),linear-gradient(0deg,#fff,transparent 45%)}.hero-content{width:calc(100% - 28px);padding-top:70px;padding-bottom:100px}.hero-content h1{font-size:52px}.hero-content>p{font-size:15px}.hero-actions{align-items:flex-start;flex-direction:column;gap:18px}.hero-index{left:14px;right:14px;bottom:12px;display:flex;justify-content:space-between}.hero-index p{display:none}.section{width:calc(100% - 28px);padding:76px 0}.section-title{align-items:flex-start;flex-direction:column;gap:12px}.feature-card{grid-template-columns:110px 1fr}.feature-card>div:last-child{padding:18px}.feature-card h3{font-size:17px}.feature-card p{display:none}.category-grid{grid-template-columns:1fr}.category-card{min-height:210px}.rules-showcase{grid-template-columns:1fr;gap:42px}.rules-visual{min-height:450px}.ladder-object{height:340px;width:125px}.ladder-object i{width:129px}.ladder-object i:nth-child(1){top:35px}.ladder-object i:nth-child(2){top:95px}.ladder-object i:nth-child(3){top:155px}.ladder-object i:nth-child(4){top:215px}.ladder-object i:nth-child(5){top:275px}.recommend-row{grid-template-columns:80px 1fr 38px;gap:12px;padding:18px 0}.recommend-row p{display:none}.recommend-row h3{font-size:16px}.page-hero>div,.article-hero>div{width:calc(100% - 28px);padding-block:55px}.page-hero h1,.article-hero h1{font-size:38px;overflow-wrap:anywhere}.article-hero p{font-size:15px}.toc ol{grid-template-columns:1fr}.article-body h2{font-size:23px;padding-left:34px}.article-body p{font-size:15px;line-height:1.9}.footer-main{grid-template-columns:1fr 1fr;gap:35px 24px}.footer-intro,.footer-note{grid-column:1/-1}.footer-note{padding-left:0;padding-top:18px;border-left:0;border-top:1px solid #ccc}.footer-bottom{align-items:flex-start;flex-direction:column;gap:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}

/* Archive, sitemap, about and error pages */
.archive{padding-top:70px}.search-form{max-width:620px;margin-bottom:22px}.search-form>label{display:block;margin-bottom:8px;font-size:12px}.search-form>div{display:flex}.search-form input{min-width:0;flex:1;height:49px;padding:0 15px;border:1px solid #bbb;background:#fff;outline:0}.search-form input:focus{border-color:#111}.search-form button{width:96px;border:0;color:#fff;background:#111;cursor:pointer}.search-form button:hover{background:#333}.filter{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:30px}.filter a{padding:7px 12px;border:1px solid var(--line);color:#666;font-size:11px}.filter a:hover{color:#fff;background:#111;border-color:#111}.result-note{color:#777;font-size:13px}.result-note a{margin-left:8px;border-bottom:1px solid #111;color:#111}.archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.archive-grid .article-card{min-height:300px;display:flex;flex-direction:column}.archive-grid .read-link{align-self:flex-start;margin-top:auto}.empty{padding:60px 20px;text-align:center;background:var(--light)}.empty h2{font:600 28px var(--serif)}.empty p{color:#777}.prose{max-width:900px}.prose>section{position:relative;margin-bottom:42px;padding:0 0 40px 55px;border-bottom:1px solid var(--line)}.prose>section>span{position:absolute;top:8px;left:0;color:#aaa;font:10px Arial}.prose h2{margin:0 0 14px;font:600 28px var(--serif)}.prose p{margin:0;color:#555;line-height:2}.prose a{border-bottom:1px solid #111}.sitemap-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}.sitemap-list>div{padding:28px;border:1px solid var(--line)}.sitemap-list h2{margin:0 0 16px;font:600 23px var(--serif)}.sitemap-list a{display:block;padding:8px 0;border-bottom:1px solid #eee;color:#666;font-size:13px}.sitemap-list a:hover{color:#111}.sitemap-list .all-articles{grid-column:1/-1}.all-articles a{display:flex;gap:20px}.all-articles a span{min-width:85px;color:#aaa;font-size:10px}.error-page{min-height:78vh;padding:calc(var(--header) + 80px) 20px 90px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;background:var(--light)}.error-page>span{color:#888;font:10px Arial;letter-spacing:2px}.error-page h1{margin:20px 0 10px;font:600 clamp(42px,6vw,72px)/1.2 var(--serif)}.error-page p{margin:0 0 30px;color:#777}.error-page>div{display:flex;gap:10px}.error-page .outline-button{width:auto;margin:0}
@media(max-width:960px){.archive-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.archive-grid{grid-template-columns:1fr}.search-form>div{display:grid;gap:7px}.search-form button{width:100%;height:44px}.prose>section{padding-left:38px}.sitemap-list{grid-template-columns:1fr}.sitemap-list .all-articles{grid-column:auto}.all-articles a{display:grid;gap:2px}.error-page>div{width:100%;flex-direction:column}.error-page .outline-button{width:100%}}

/* Encyclopedia edition */
body{background:#fff;color:#111}.site-header{background:rgba(255,255,255,.96)}.site-header.scrolled{box-shadow:none}.header-inner{width:min(calc(100% - 48px),var(--max))}.brand b{font-family:var(--serif);font-size:18px}.brand small{letter-spacing:1.1px}.main-nav{gap:24px}.main-nav a{color:#666}.main-nav a.active{font-weight:700}.main-nav a:after{bottom:15px}
.encyclopedia-hero{height:690px;min-height:650px;border-bottom:1px solid var(--line);background:#efefed}.encyclopedia-hero .hero-overlay{background:linear-gradient(90deg,rgba(255,255,255,.99) 0%,rgba(255,255,255,.94) 43%,rgba(255,255,255,.28) 72%,rgba(255,255,255,.08) 100%)}.encyclopedia-hero .hero-content{padding-bottom:10px}.encyclopedia-hero .hero-content h1{margin:17px 0 18px;font-size:clamp(58px,6vw,82px);line-height:1.02}.encyclopedia-hero .hero-content h1 em{font-style:normal;font-weight:400}.encyclopedia-hero .hero-content>p{max-width:520px;font-size:15px;line-height:1.85}.hero-search{width:min(100%,540px);display:flex;margin-top:28px;border-bottom:2px solid #111}.hero-search input{min-width:0;flex:1;height:50px;padding:0 2px;border:0;background:transparent;outline:0;color:#111}.hero-search input::placeholder{color:#777}.hero-search button{width:82px;border:0;background:#111;color:#fff;cursor:pointer}.hero-search button:hover{background:#333}.hero-quicklinks{display:flex;align-items:center;flex-wrap:wrap;gap:9px 18px;margin-top:20px;color:#555;font-size:11px}.hero-quicklinks>span{color:#999}.hero-quicklinks a{border-bottom:1px solid #aaa}.hero-quicklinks a:hover{border-color:#111;color:#111}.hero-edition{position:absolute;z-index:3;right:max(24px,calc((100vw - var(--max))/2));bottom:28px;display:grid;grid-template-columns:auto auto;align-items:baseline;gap:4px 12px;padding:20px 22px;background:rgba(255,255,255,.92);border:1px solid rgba(17,17,17,.14);backdrop-filter:blur(12px)}.hero-edition b{font:500 30px/1 var(--serif)}.hero-edition span{color:#777;font-size:10px}
.encyclopedia-intro{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:start;padding-block:88px;border-bottom:1px solid var(--line)}.encyclopedia-intro h2{margin:14px 0 0;font:600 clamp(38px,4vw,54px)/1.3 var(--serif)}.encyclopedia-intro>div:last-child>p{margin:28px 0 30px;color:#555;font-size:15px;line-height:2}.intro-facts{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #111}.intro-facts span{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:12px}.intro-facts span:nth-child(odd){padding-right:18px}.intro-facts span:nth-child(even){padding-left:18px;border-left:1px solid var(--line)}.intro-facts b{color:#999;font:10px Arial}
.home-block{padding-top:88px}.featured-grid{gap:1px;background:var(--line);border:1px solid var(--line)}.feature-card{min-height:226px;border:0}.feature-card:hover{transform:none;box-shadow:none;background:#fafafa}.feature-image{width:150px;background:#1a1a1a}.feature-image:after{opacity:.45}.feature-card h3{font-size:19px}.category-band{background:#f5f5f3;border-block:1px solid var(--line)}.category-grid{gap:0;border-top:1px solid #bbb;border-left:1px solid #bbb}.category-card{min-height:220px;border:0;border-right:1px solid #bbb;border-bottom:1px solid #bbb}.category-card:hover{transform:none;background:#111;color:#fff}.category-card:hover p,.category-card:hover>span{color:#bbb}.category-card h3{margin-top:36px}.rules-showcase{padding-block:96px}.rules-visual{min-height:540px;background:#ededeb}.recommendation{padding-top:80px}.recommend-row:hover{background:#f7f7f5}.home-cta{padding-block:90px}.home-cta h2{font-size:clamp(38px,5vw,60px)}
.page-hero{background:#f4f4f2}.page-hero>div,.article-hero>div{padding-block:70px 60px}.page-hero h1,.article-hero h1{font-size:clamp(40px,4.5vw,60px)}.page-hero:after,.article-hero:after{content:"CH105";float:right;margin-top:-92px;color:rgba(17,17,17,.045);font:700 84px/1 Arial;letter-spacing:4px}.listing-layout{gap:48px;padding-top:78px}.article-card{border-color:#d5d5d1}.article-card:hover{transform:none;background:#f7f7f5}.side-note{background:#171717}.article-hero{border-bottom:1px solid var(--line)}.article-layout{padding-top:75px}.article-body{max-width:760px}.toc{border-top:2px solid #111;background:#f5f5f3}.article-body>section{padding-bottom:12px;border-bottom:1px solid #ececea}.article-body h2{font-size:27px}.article-body p{color:#333}.article-aside>div{background:#fafafa}.archive-grid{gap:1px;background:var(--line);border:1px solid var(--line)}.archive-grid .article-card{border:0;background:#fff}.archive-grid .article-card:hover{background:#f5f5f3}.site-footer{background:#ededeb}.footer-main{border-top:2px solid #111;padding-top:35px}
@media(max-width:960px){.encyclopedia-intro{gap:45px}.hero-edition{right:20px}.feature-image{width:135px}}
@media(max-width:760px){.header-inner{width:calc(100% - 28px)}.encyclopedia-hero{min-height:680px;height:auto}.encyclopedia-hero .hero-overlay{background:linear-gradient(90deg,rgba(255,255,255,.97),rgba(255,255,255,.68)),linear-gradient(0deg,#fff 0%,transparent 55%)}.encyclopedia-hero .hero-content{padding-top:58px;padding-bottom:165px}.encyclopedia-hero .hero-content h1{font-size:48px}.encyclopedia-hero .hero-content>p{font-size:14px}.hero-search{margin-top:22px}.hero-quicklinks{gap:8px 15px}.hero-edition{left:14px;right:14px;bottom:15px;display:flex;align-items:center;justify-content:space-around}.hero-edition b{font-size:25px}.encyclopedia-intro{grid-template-columns:1fr;gap:26px;padding-block:66px}.encyclopedia-intro>div:last-child>p{margin-top:0}.intro-facts{grid-template-columns:1fr}.intro-facts span:nth-child(even){padding-left:0;border-left:0}.featured-grid{grid-template-columns:1fr}.feature-image{width:105px}.page-hero:after,.article-hero:after{display:none}.page-hero>div,.article-hero>div{padding-block:48px}.listing-layout,.article-layout{padding-top:60px}.article-body h2{font-size:22px}.home-cta{padding-block:70px}}

/* 2026 neon editorial palette */
:root{--ink:#13151a;--ink-2:#1b1f27;--paper:#f8f9f7;--paper-2:#eef1ed;--cyan-neon:#20d9e7;--lime-neon:#b7ef3f;--coral:#ff6b61;--violet:#7868ff;--soft-text:#657078;--color-border:#d9dedb}
body{color:var(--ink);background:var(--paper)}
body:before{content:"";position:fixed;z-index:-2;inset:0;pointer-events:none;background:radial-gradient(circle at 8% 16%,rgba(32,217,231,.11),transparent 25%),radial-gradient(circle at 92% 36%,rgba(183,239,63,.09),transparent 23%),radial-gradient(circle at 72% 86%,rgba(255,107,97,.07),transparent 25%)}
.site-header{color:#eefaf8;background:rgba(19,21,26,.86);border-bottom-color:rgba(255,255,255,.09);box-shadow:0 10px 35px rgba(0,0,0,.12)}
.site-header.scrolled{color:#eefaf8;background:rgba(19,21,26,.96);border-color:rgba(32,217,231,.22);box-shadow:0 12px 35px rgba(0,0,0,.2)}
.site-header .brand-icon{border-color:var(--cyan-neon)}.site-header .brand-icon:before,.site-header .brand-icon:after,.site-header .brand-icon i{background:var(--cyan-neon);box-shadow:0 0 10px rgba(32,217,231,.65)}
.site-header .brand small{color:#9ca7ad}.main-nav a{color:#b8c0c4}.main-nav a:hover,.main-nav a.active{color:#fff}.main-nav a:after{height:2px;background:linear-gradient(90deg,var(--cyan-neon),var(--lime-neon));box-shadow:0 0 12px rgba(32,217,231,.7)}
.menu-toggle{border-color:#3b4249;background:#20242b}.menu-toggle span{background:#fff}
.encyclopedia-hero{color:#f7fbfa;background:var(--ink);border-bottom:0;isolation:isolate}
.encyclopedia-hero:before,.encyclopedia-hero:after{content:"";position:absolute;z-index:1;pointer-events:none;border-radius:50%;filter:blur(16px)}
.encyclopedia-hero:before{width:520px;height:520px;right:-90px;top:-165px;background:radial-gradient(circle,rgba(32,217,231,.38) 0%,rgba(32,217,231,.12) 38%,transparent 70%);animation:neonDrift 9s ease-in-out infinite alternate}
.encyclopedia-hero:after{width:460px;height:460px;left:38%;bottom:-300px;background:radial-gradient(circle,rgba(183,239,63,.25) 0%,rgba(120,104,255,.1) 45%,transparent 70%);animation:neonDrift 12s ease-in-out infinite alternate-reverse}
.encyclopedia-hero>img{filter:contrast(1.12) brightness(.5) saturate(.45);mix-blend-mode:luminosity;opacity:.72}
.encyclopedia-hero .hero-overlay{z-index:1;background:linear-gradient(90deg,rgba(19,21,26,.98) 0%,rgba(19,21,26,.91) 42%,rgba(19,21,26,.38) 72%,rgba(19,21,26,.62) 100%)}
.encyclopedia-hero .hero-content{z-index:3}.encyclopedia-hero .eyebrow{color:var(--cyan-neon)}.encyclopedia-hero .hero-content h1 em{color:var(--lime-neon);text-shadow:0 0 32px rgba(183,239,63,.22)}.encyclopedia-hero .hero-content>p{color:#c3cdcf}
.hero-search{border-color:var(--cyan-neon);box-shadow:0 12px 35px rgba(0,0,0,.18),0 10px 30px rgba(32,217,231,.08)}.hero-search input{color:#fff}.hero-search input::placeholder{color:#8d999e}.hero-search button{color:#101316;background:linear-gradient(135deg,var(--cyan-neon),#73f0d0)}.hero-search button:hover{background:var(--lime-neon)}
.hero-quicklinks{color:#c6ced1}.hero-quicklinks>span{color:#78868c}.hero-quicklinks a{border-color:#566066}.hero-quicklinks a:hover{color:var(--lime-neon);border-color:var(--lime-neon)}
.hero-edition{z-index:3;color:#f7fbfa;background:rgba(27,31,39,.82);border-color:rgba(32,217,231,.3);box-shadow:0 0 35px rgba(32,217,231,.1)}.hero-edition b{color:var(--lime-neon)}.hero-edition span{color:#aeb9bc}
.eyebrow{color:#0b8790}.encyclopedia-intro{border-bottom-color:var(--color-border)}.encyclopedia-intro h2,.section-title h2,.rules-copy h2{color:var(--ink)}.intro-facts{border-top-color:var(--ink)}.intro-facts b{color:#0b8790}
.dark-button{color:#101316;background:linear-gradient(135deg,var(--cyan-neon),#7feacc);border-color:transparent;box-shadow:0 9px 25px rgba(32,217,231,.18)}.dark-button:hover{color:#101316;background:var(--lime-neon);box-shadow:0 12px 28px rgba(183,239,63,.2)}
.feature-card,.article-card,.archive-grid .article-card{background:rgba(255,255,255,.92)}.feature-card:hover,.article-card:hover,.archive-grid .article-card:hover{background:#fff;box-shadow:0 14px 35px rgba(30,38,38,.08)}.feature-image{background:linear-gradient(155deg,#171a20,#222a30)}.feature-image span{color:var(--cyan-neon)}.feature-image:before{content:"";position:absolute;width:120px;height:120px;right:-65px;top:-55px;border-radius:50%;background:var(--cyan-neon);filter:blur(35px);opacity:.22}
.category-band{background:linear-gradient(145deg,#e9f2ef 0%,#f4f6f1 52%,#eef2e9 100%)}.category-card{background:rgba(255,255,255,.88)}.category-card:hover{color:#f5fffc;background:linear-gradient(145deg,#171a20,#222831);box-shadow:inset 0 2px var(--cyan-neon),0 18px 40px rgba(13,23,23,.13)}.category-card:hover h3{color:#fff}.category-card:hover i{color:var(--lime-neon)}
.rules-visual{background:linear-gradient(145deg,#dfe8e4,#eef1eb)}.ladder-object{border-color:#20262a;filter:drop-shadow(32px 25px 16px rgba(23,217,225,.14))}.ladder-object i{background:#20262a}.rules-copy li>b{color:#0c9199}
.recommend-row:hover{background:#eef7f4}.recommend-row>a:last-child:hover{border-color:var(--cyan-neon);background:#182126;color:var(--lime-neon)}
.home-cta{position:relative;overflow:hidden;color:#fff;background:linear-gradient(135deg,#15181e,#20262c)}.home-cta:before,.home-cta:after{content:"";position:absolute;border-radius:50%;filter:blur(20px);pointer-events:none}.home-cta:before{width:420px;height:420px;right:-130px;top:-230px;background:radial-gradient(circle,rgba(32,217,231,.36),transparent 68%)}.home-cta:after{width:350px;height:350px;left:-100px;bottom:-230px;background:radial-gradient(circle,rgba(255,107,97,.22),transparent 68%)}.home-cta>div{position:relative;z-index:1}.home-cta .eyebrow{color:var(--cyan-neon)}.light-button{color:#101316;background:var(--lime-neon);border-color:var(--lime-neon)}
.page-hero{color:#f7fbfa;background:linear-gradient(130deg,#171a20 0%,#20252c 65%,#172527 100%);border-color:rgba(32,217,231,.18)}.page-hero:before{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-250px;border-radius:50%;background:radial-gradient(circle,rgba(32,217,231,.32),transparent 68%);filter:blur(10px)}.page-hero>div{position:relative;z-index:1}.page-hero p{color:#bac5c7}.page-hero .crumb{color:#8d9a9e}.page-hero .crumb b{color:#fff}.page-hero .eyebrow{color:var(--cyan-neon)}.page-hero h1{color:#fff}.page-hero:after{color:rgba(183,239,63,.055)}
.article-hero{background:linear-gradient(180deg,#f4f8f5,#fff)}.article-hero .eyebrow{color:#078b93}.toc{border-top-color:var(--cyan-neon);background:#edf5f2}.article-body>section>span{color:#08939b}.topic-tags a{background:#e8f3ef}.side-note{background:linear-gradient(145deg,#171a20,#22292f);box-shadow:inset 0 2px var(--cyan-neon)}.side-note .eyebrow{color:var(--cyan-neon)}.side-note nav a:hover{color:var(--lime-neon)}
.filter a:hover{border-color:#172126;background:#172126}.search-form button{color:#101316;background:var(--cyan-neon)}.search-form button:hover{background:var(--lime-neon)}.site-footer{background:#e7ede9}.footer-main{border-top-color:#192025}.back-top{border-color:#1b2226}.back-top:hover{color:#101316;background:var(--lime-neon);border-color:var(--lime-neon)}
@keyframes neonDrift{from{transform:translate3d(-18px,-8px,0) scale(.94)}to{transform:translate3d(24px,20px,0) scale(1.08)}}
@media(max-width:760px){.site-header{background:rgba(19,21,26,.96)}.main-nav{background:#171a20;border-color:#343a40}.main-nav a{color:#d6dddf;border-color:#30363c}.encyclopedia-hero .hero-overlay{background:linear-gradient(90deg,rgba(19,21,26,.96),rgba(19,21,26,.7)),linear-gradient(0deg,#13151a 0%,transparent 58%)}.encyclopedia-hero:before{width:330px;height:330px;right:-160px;top:-70px}.encyclopedia-hero:after{width:320px;height:320px;left:-140px;bottom:-170px}.hero-edition{background:rgba(27,31,39,.9)}.category-card:hover{box-shadow:inset 3px 0 var(--cyan-neon)}}