:root{--bg:#F4F7FA;--white:#fff;--mist:#EAF1F6;--mint:#E9F8F8;--nav:#102E46;--nav2:#163C57;--teal:#13B8C5;--blue:#237BD3;--heading:#18364B;--body:#344C60;--muted:#64798A;--line:#DCE6ED;--footer:#0B2539;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-wrap:break-word}body.drawer-open{overflow:hidden}a{color:#126ca7;text-underline-offset:3px}a:hover{color:#0c5686}button{font:inherit}img{max-width:100%}h1,h2,h3{color:var(--heading);line-height:1.36;letter-spacing:-.02em}h1{font-size:clamp(32px,3vw,36px);margin:0 0 20px}h2{font-size:clamp(23px,2.3vw,28px);margin:0 0 18px}h3{font-size:20px;margin:0 0 10px}p{margin:0 0 16px}ul,ol{padding-left:1.4em}li{margin:5px 0}figure{margin:0}section{scroll-margin-top:28px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #2F9BDD;outline-offset:3px}.container{width:min(var(--max),calc(100% - 56px));margin-inline:auto}.reading{max-width:790px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.15em;color:#147a86;text-transform:uppercase}.section-space{margin-block:60px}.section-heading{max-width:790px;margin-bottom:25px}.section-heading p{color:var(--muted)}.muted{color:var(--muted)}.lead{font-size:18px;line-height:1.82}.strong{font-weight:700}.small-note{font-size:14px;color:var(--muted)}.surface{background:white;border:1px solid var(--line);border-radius:14px}.soft-band{background:var(--mist);padding:34px;border-radius:16px}.mint-band{background:var(--mint);padding:30px;border-radius:14px}.deep-band{background:var(--nav2);color:#e9f7ff;padding:35px;border-radius:15px}.deep-band h2,.deep-band h3{color:white}.deep-band p{color:#deecf6}
.skip-link{position:absolute;top:-100px;left:12px;padding:8px 14px;background:white;z-index:200}.skip-link:focus{top:8px}.site-header{position:relative;z-index:10}.brand-band{background:white;border-bottom:1px solid var(--line)}.brand-inner{height:72px;display:flex;align-items:center;gap:26px;min-width:0}.brand-logo{display:flex;align-items:center;min-width:0;flex-shrink:1;text-decoration:none}.brand-logo img{display:block;width:auto;height:auto;max-height:38px;max-width:245px;object-fit:contain}.brand-wordmark{font-size:24px;font-weight:900;white-space:nowrap;color:var(--nav);line-height:1.05}.brand-wordmark small{display:block;font-size:10px;letter-spacing:.24em}.brand-subline{font-size:13px;color:var(--muted);margin:0;white-space:nowrap}.entry-link{margin-left:auto;white-space:nowrap;padding:9px 22px;background:var(--nav);color:#fff;border-radius:7px;font-weight:700;text-decoration:none;font-size:14px}.entry-link:hover{background:#245778;color:white}.desktop-nav{background:var(--nav)}.nav-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));align-items:stretch}.desktop-nav a{display:flex;align-items:center;justify-content:center;text-decoration:none;color:#eaf2f8;min-height:50px;font-size:15px;font-weight:600;white-space:nowrap;position:relative}.desktop-nav a:hover{color:white;background:rgba(255,255,255,.09)}.desktop-nav a[aria-current="page"]{color:#fff;font-weight:800}.desktop-nav a[aria-current="page"]:after{content:"";position:absolute;bottom:0;left:24%;right:24%;height:3px;background:var(--teal)}.menu-toggle{display:none}.drawer-backdrop,.mobile-drawer{display:none}.noscript-nav{padding-block:13px;display:flex;gap:14px;flex-wrap:wrap}.noscript-nav a{font-size:14px}.breadcrumbs{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-bottom:24px}.breadcrumbs a{text-decoration:none}.page-shell{padding-block:37px 70px}.page-head{max-width:870px;margin:0 0 35px}.page-head .lead{max-width:800px}.page-head--compact{border-bottom:1px solid var(--line);padding-bottom:22px}.in-page-nav{display:flex;flex-wrap:wrap;gap:10px;margin:25px 0 35px}.in-page-nav a{font-size:14px;font-weight:700;text-decoration:none;padding:8px 15px;border:1px solid #bdd3e1;background:white;border-radius:40px}.in-page-nav a:hover{background:var(--mint)}
.hero{display:grid;grid-template-columns:minmax(0,52fr) minmax(0,48fr);align-items:center;gap:35px;padding:40px 0 32px}.hero h1{font-size:clamp(36px,3.5vw,44px);margin:12px 0 20px}.hero p{max-width:580px}.hero-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:8px;font-size:15px;font-weight:800;padding:11px 19px;background:var(--nav);color:white}.button-link:hover{background:#235578;color:white}.button-link--light{background:white;color:var(--nav);border:1px solid #bbd0dd}.button-link--light:hover{background:var(--mint);color:var(--nav)}
.media-frame{display:flex;align-items:center;justify-content:center;width:100%;min-width:0;padding:8px;border-radius:14px;background:var(--mist);overflow:hidden}.media-frame img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--media-limit,220px);object-fit:contain;object-position:center}.media-frame--hero{--media-limit:310px}.media-frame--feature{--media-limit:250px}.media-frame--card{--media-limit:185px}.media-frame--banner{--media-limit:210px}.media-frame--mobile{--media-limit:350px;max-width:320px}.media-placeholder{width:100%;min-height:112px;max-height:210px;aspect-ratio:16/7;display:flex;align-items:center;justify-content:center;border:1px dashed #afc5d5;border-radius:9px;background:linear-gradient(120deg,#eff4f7,#e3edf2);color:#6d8798;font-size:13px}.media-frame--mobile .media-placeholder{aspect-ratio:3/4;max-height:300px}.media-frame--hero .media-placeholder{aspect-ratio:16/9}
.topic-directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;border-top:2px solid var(--nav);margin-top:26px}.topic-item{display:grid;grid-template-columns:38px minmax(0,1fr);gap:12px;padding:20px 0;border-bottom:1px solid var(--line)}.topic-item .num{font-size:14px;color:#148b98;font-weight:900}.topic-item h3{margin-bottom:7px}.topic-item a{text-decoration:none;color:var(--heading)}.topic-item a:hover{color:var(--blue)}.topic-item p{font-size:15px;color:var(--muted);margin:0}.focus-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:22px}.focus-main{padding:31px;background:var(--nav2);color:#e7f4fb;border-radius:14px}.focus-main h3{font-size:27px;color:white}.focus-main a{color:#99e3ed}.focus-main p{color:#deebf2}.focus-side{display:grid;gap:18px}.focus-side article{padding:24px;background:white;border:1px solid var(--line);border-radius:14px}.focus-side article h3{font-size:19px}.editorial-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:38px;align-items:center}.editorial-split--wide{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}.editorial-split h2{margin-bottom:16px}.editorial-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}.text-card{border-top:3px solid var(--teal);padding:18px 0}.rule-notes{display:grid;grid-template-columns:1fr 1fr 1fr;gap:17px;align-items:start}.rule-notes article{padding:23px;background:white;border:1px solid var(--line);border-radius:12px}.rule-notes article:nth-child(2){margin-top:20px}.rule-notes article:nth-child(3){margin-top:40px}.route{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:step}.route article{border-top:3px solid var(--teal);padding:17px 18px 0 0}.route article::before{counter-increment:step;content:"0" counter(step);font-size:14px;color:#148b98;font-weight:800}
.content-section{margin-block:44px}.content-section>p{max-width:790px}.article-body{max-width:790px}.article-body p{line-height:1.85}.article-body h3{margin-top:28px}.bullet-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.bullet-columns article{border-left:3px solid var(--teal);padding:6px 15px}.sports-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:44px;align-items:start}.facts-aside{background:var(--mint);border-radius:12px;padding:24px;position:sticky;top:20px}.facts-aside h2{font-size:19px}.facts-aside dt{font-weight:800;color:var(--heading)}.facts-aside dd{margin:2px 0 14px;font-size:14px}.process-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:23px 0}.process-strip div{background:#e9f5f7;padding:15px;border-top:3px solid var(--teal);font-size:14px;line-height:1.6}.process-strip strong{display:block;color:var(--heading)}.table-scroll{overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:12px;background:white}.data-table{width:100%;border-collapse:collapse;min-width:620px;font-size:15px}.data-table caption{text-align:left;font-size:14px;font-weight:700;color:var(--muted);padding:12px 16px}.data-table th,.data-table td{padding:13px 17px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.data-table th{background:#eaf1f6;color:var(--heading);font-weight:800}.data-table tr:last-child td{border-bottom:0}.steps{list-style:none;padding:0;counter-reset:steps}.steps li{counter-increment:steps;display:grid;grid-template-columns:45px minmax(0,1fr);gap:15px;padding:20px 0;border-bottom:1px solid var(--line)}.steps li::before{content:counter(steps,decimal-leading-zero);font-weight:800;color:#0b8b9b;font-size:18px}.steps strong{display:block;color:var(--heading)}.key-quote{padding:20px 25px;border-left:4px solid var(--teal);background:var(--mint);font-size:17px;line-height:1.8;margin:24px 0}.esports-matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.esports-matrix article{padding:22px;background:white;border:1px solid var(--line);border-top:4px solid var(--teal);border-radius:12px}.esports-matrix p{font-size:15px}.gallery-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px 26px;align-items:start}.gallery-grid article:nth-child(2){margin-top:40px}.gallery-grid article:nth-child(3){grid-column:1/3;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:center;background:white;padding:20px;border-radius:14px}.gallery-grid h3{margin:16px 0 9px}.faq details{background:white;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;padding:0 18px}.faq summary{cursor:pointer;font-weight:800;color:var(--heading);padding:14px 0;line-height:1.6}.faq details p{border-top:1px solid var(--line);padding:13px 0 17px;margin:0}.services-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:50px;align-items:start}.service-sidebar{position:sticky;top:20px;padding:23px;background:var(--mist);border-radius:12px}.service-sidebar a{display:block;padding:7px 0;text-decoration:none;border-bottom:1px solid #cddde7}.service-main{min-width:0}.related-reading{padding:26px 30px;border-radius:13px;background:var(--mist);margin-top:55px}.related-reading h2{font-size:22px}.related-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.related-list a{display:flex;justify-content:space-between;gap:8px;font-weight:800;text-decoration:none;padding:13px;background:white;border:1px solid var(--line);border-radius:7px}.related-list span{color:#158d9c}.editor-note{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px}.compact-list>div{padding:16px 0;border-bottom:1px solid var(--line)}.compact-list strong{display:block;color:var(--heading)}
.mobile-shortcuts{display:none}.site-footer{background:var(--footer);color:#dcecf5;padding:43px 0 16px}.footer-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:40px}.footer-layout p{font-size:14px;max-width:640px}.footer-brand{font-size:23px;color:white}.footer-brand span{font-size:12px;letter-spacing:.08em;color:#9dd9e0}.footer-layout nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 16px;align-content:start}.site-footer a{color:#dcecf5;text-decoration:none;font-size:14px}.site-footer a:hover{color:#9ce3eb}.footer-bottom{border-top:1px solid #35516a;margin-top:27px;padding-top:15px;display:flex;justify-content:space-between;gap:14px;font-size:12px;color:#aec8d6}.back-top{position:fixed;bottom:26px;right:24px;background:var(--nav);color:white;border:0;border-radius:50%;width:43px;height:43px;cursor:pointer;z-index:8}.back-top[hidden]{display:none}
@media(max-width:1100px){.container{width:calc(100% - 44px)}.brand-inner{gap:17px}.brand-subline{font-size:12px}.editorial-split{gap:26px}}
@media(max-width:920px){.brand-inner{height:62px;display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:10px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;align-items:center;width:40px;height:40px;background:transparent;border:1px solid var(--line);border-radius:8px;cursor:pointer}.menu-toggle span{width:18px;height:2px;background:var(--heading);border-radius:2px}.brand-logo{justify-self:center;max-width:100%;overflow:hidden}.brand-logo img{max-height:30px;max-width:min(38vw,220px)}.brand-wordmark{font-size:19px}.brand-wordmark small{font-size:8px}.brand-subline,.desktop-nav{display:none}.entry-link{margin:0;padding:8px 12px;min-height:40px;display:flex;align-items:center;font-size:13px}.drawer-backdrop{display:block;position:fixed;inset:0;background:rgba(3,23,34,.54);z-index:50;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s,visibility .2s}.drawer-backdrop.is-open{opacity:1;visibility:visible;pointer-events:auto}.mobile-drawer{display:block;position:fixed;z-index:51;inset:0 auto 0 0;width:min(86vw,340px);background:white;box-shadow:8px 0 30px #001a2b36;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .2s,visibility .2s;overflow-y:auto}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:13px 20px;border-bottom:1px solid var(--line);color:var(--heading)}.drawer-close{width:40px;height:40px;background:#edf3f8;border:0;border-radius:8px;font-size:28px;cursor:pointer}.mobile-drawer nav{padding:10px 20px 30px}.mobile-drawer nav a{display:block;padding:10px 12px;text-decoration:none;color:var(--heading);border-radius:8px;font-weight:700}.mobile-drawer nav a:hover{background:var(--mint)}.drawer-group{margin:17px 0 4px;font-size:12px;letter-spacing:.1em;font-weight:800;color:var(--muted)}.mobile-shortcuts{display:flex;justify-content:space-between;gap:7px;flex-wrap:wrap;padding-block:16px}.mobile-shortcuts a{font-size:13px;font-weight:700;text-decoration:none}.sports-layout{grid-template-columns:1fr}.facts-aside{position:static}.services-layout{grid-template-columns:1fr}.service-sidebar{position:static;order:2}.service-main{order:1}}
@media(max-width:760px){.hero,.editorial-split,.editorial-split--wide,.focus-grid,.gallery-grid,.editorial-pair,.footer-layout{grid-template-columns:1fr}.focus-side{grid-template-columns:repeat(2,minmax(0,1fr))}.gallery-grid article:nth-child(2){margin-top:0}.gallery-grid article:nth-child(3){grid-column:auto;display:block}.esports-matrix{grid-template-columns:1fr}.related-list{grid-template-columns:1fr}.rule-notes{grid-template-columns:1fr}.rule-notes article:nth-child(2),.rule-notes article:nth-child(3){margin-top:0}.route{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.process-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding-top:25px}.hero .media-frame{max-width:100%}.footer-layout nav{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:640px){body{font-size:15px;line-height:1.77}.container{width:calc(100% - 32px)}h1{font-size:clamp(25px,6vw,29px)}h2{font-size:22px}h3{font-size:18px}.lead{font-size:16px}.page-shell{padding-block:22px 46px}.hero h1{font-size:clamp(27px,7vw,32px)}.hero{gap:22px}.section-space{margin-block:36px}.soft-band,.mint-band,.deep-band{padding:21px}.topic-directory,.bullet-columns,.focus-side{grid-template-columns:1fr}.topic-item{padding:16px 0}.focus-main{padding:22px}.focus-main h3{font-size:23px}.focus-side article{padding:19px}.media-frame--hero{--media-limit:205px}.media-frame--feature{--media-limit:185px}.media-frame--card{--media-limit:145px}.media-frame--banner{--media-limit:135px}.media-frame--mobile{--media-limit:285px;max-width:250px}.related-reading{padding:19px}.footer-layout nav{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-bottom{flex-direction:column}.back-top{right:14px;bottom:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}}