/* KAIYUN SPORTS — independent responsive editorial system */
:root{--bg:#F4F7FA;--white:#fff;--soft:#EAF1F6;--aqua:#E9F8F8;--navy:#102E46;--deep:#163C57;--cyan:#13B8C5;--blue:#237BD3;--heading:#18364B;--text:#344C60;--muted:#64798A;--line:#DCE6ED;--footer:#0B2539;--gutter:28px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:22px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:#116a93;text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#07536c}button{font:inherit;cursor:pointer}img{max-width:100%}h1,h2,h3,p,ul,ol{margin-top:0}h1,h2,h3{color:var(--heading);line-height:1.38}h1{font-size:36px;letter-spacing:-.6px}h2{font-size:27px;margin-bottom:17px}h3{font-size:20px;margin-bottom:12px}p{margin-bottom:17px}section{scroll-margin-top:24px}.container{width:min(1200px,calc(100% - var(--gutter)*2));margin-inline:auto}.reading{max-width:790px}.section{margin-block:60px}.section-title{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:27px}.section-title 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:focus-visible{outline:3px solid #138ea7;outline-offset:3px}
@media(max-width:1199px){:root{--gutter:22px}.section{margin-block:48px}.home-hero h1{font-size:39px}}
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@media(max-width:760px){.split,.split--wide,.split--reverse,.feature-layout,.footer-grid,.about-shell,.about-mobile{grid-template-columns:1fr}.about-side{position:static;order:2}.about-main{order:1}.split .media-frame{max-width:100%}.home-hero{grid-template-columns:1fr;padding-top:34px}.home-hero h1{font-size:33px}.feature-side{grid-template-columns:1fr 1fr}.gallery article:nth-child(3){display:block}.sports-body{grid-template-columns:1fr}.rules-shell{display:block}.rules-index{position:static;display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:25px}.rules-index a{margin:0}.rules-index h2{margin:0 12px 0 0;font-size:17px}.steps-row{grid-template-columns:1fr 1fr}.related-links{grid-template-columns:1fr 1fr}.about-mobile .media-frame{max-width:280px}}
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@media(max-width:380px){.brand-logo img{max-width:34vw}.brand-fallback{letter-spacing:0;font-size:12px}.brand-bar{grid-template-columns:40px minmax(0,1fr) auto}.steps-row{grid-template-columns:1fr}.action-row{gap:8px}.action{font-size:13px;padding-inline:12px}}
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