/* KAIYUN SPORTS - responsive editorial layout */
:root{--bg:#f5fbff;--paper:#fff;--soft:#eaf7fc;--soft2:#dff5fb;--teal:#25c8d1;--blue:#1787db;--deep:#174b78;--title:#173b60;--text:#2d4359;--muted:#687f93;--line:#dcebf3;--shadow:0 16px 44px rgba(23,75,120,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 Arial,'PingFang SC','Microsoft YaHei',sans-serif}body.nav-open{overflow:hidden}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button{font:inherit;cursor:pointer}img{max-width:100%}.container{max-width:1160px;margin:auto;padding-inline:24px}.skip-link{position:absolute;top:-100px;left:14px;z-index:90;background:#fff;padding:8px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 3px 16px rgba(15,60,95,.04)}.header-inner{height:72px;display:flex;align-items:center;gap:23px}.brand{display:inline-flex;align-items:center;flex-shrink:0;min-width:130px}.brand-logo{display:block;width:auto;height:auto;max-height:37px;max-width:170px;object-fit:contain}.brand-word{font-size:23px;color:var(--deep);font-weight:900;line-height:1.05;white-space:nowrap;letter-spacing:.02em}.brand-word>span{color:#25b6e8}.brand-word small{display:block;font-size:9px;letter-spacing:.2em;margin-top:4px}.desktop-nav{margin-left:auto;display:flex;align-items:center;gap:19px;white-space:nowrap}.desktop-nav a{font-size:14px;font-weight:700;transition:color .2s}.desktop-nav a.active,.desktop-nav a[aria-current]{color:var(--blue)}.main-btn{display:inline-flex;justify-content:center;align-items:center;min-height:42px;min-width:82px;padding:0 20px;border-radius:999px;color:#fff;font-weight:700;background:linear-gradient(110deg,#25c8d1,#25b6e8,#1787db);white-space:nowrap;box-shadow:0 8px 18px rgba(23,135,219,.15)}.main-btn:hover{color:#fff;filter:brightness(1.05)}.header-action{margin-left:4px;font-size:14px}.menu-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:11px}.menu-toggle span{width:19px;height:2px;background:var(--title)}.nav-backdrop{position:fixed;inset:0;background:rgba(7,30,52,.42);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .25s;z-index:48}.nav-backdrop.open{visibility:visible;opacity:1;pointer-events:auto}.drawer{position:fixed;z-index:50;inset:0 auto 0 0;width:min(86vw,340px);background:#fff;transform:translateX(-105%);visibility:hidden;transition:transform .24s,visibility .24s;overflow:auto;padding:20px;box-shadow:var(--shadow)}.drawer.open{transform:translateX(0);visibility:visible}.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line)}.drawer-close{border:0;background:var(--soft);border-radius:10px;font-size:27px;width:39px;height:39px;color:var(--deep)}.drawer-group{padding:18px 0;border-bottom:1px solid var(--line)}.drawer-group strong{display:block;color:var(--deep);font-size:14px;margin-bottom:8px}.drawer-group a{display:block;padding:7px 6px;font-size:15px}
main{min-height:65vh}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.17em;color:#1389ae;text-transform:uppercase}.hero{padding:55px 0 45px;background:linear-gradient(140deg,#e5f9fd,#f5fbff 58%,#edf6ff)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:45px;align-items:center}.hero h1{font-size:40px;line-height:1.32;color:var(--title);margin:14px 0 20px;letter-spacing:-.025em}.hero p{max-width:620px;font-size:17px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.outline-btn{display:inline-flex;align-items:center;justify-content:center;padding:7px 19px;border-radius:999px;border:1px solid #99d7e6;color:var(--deep);font-weight:700;background:#fff}.media{width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;background:linear-gradient(135deg,#dff5fb,#c2e6f7,#ecfaff);border-radius:17px;position:relative}.media--landscape{height:245px}.media--wide{height:305px}.media--compact{height:174px}.media--portrait{height:320px;max-width:340px;margin:auto}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-art{display:block;position:relative;width:68%;height:67%;border:1px solid rgba(23,135,219,.14);transform:skew(-10deg);border-radius:24px;background:linear-gradient(140deg,rgba(255,255,255,.55),rgba(37,182,232,.07))}.media-art i{position:absolute;border-radius:100%;background:rgba(37,182,232,.12)}.media-art i:nth-child(1){width:38%;aspect-ratio:1;left:12%;top:18%}.media-art i:nth-child(2){width:19%;aspect-ratio:1;right:12%;top:26%;background:rgba(37,200,209,.2)}.media-art i:nth-child(3){width:43%;height:6px;bottom:16%;left:28%;border-radius:8px}.section{padding:49px 0}.section-alt{background:#ecf7fc}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-head h2,h2.section-title{margin:4px 0 0;font-size:26px;line-height:1.4;color:var(--title)}.section-head p{max-width:620px;margin:5px 0 0;color:var(--muted)}.text-link{font-size:14px;font-weight:700;color:var(--blue);white-space:nowrap}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.topic-card{background:var(--paper);padding:23px;border:1px solid var(--line);border-radius:17px;box-shadow:0 7px 23px rgba(25,65,100,.035);min-height:185px}.topic-card .number{color:#15b5c8;font-size:13px;font-weight:800}.topic-card h3{font-size:19px;color:var(--title);margin:12px 0 8px;line-height:1.4}.topic-card p{margin:0;color:var(--muted);font-size:14px}.topic-card a{display:inline-block;margin-top:14px;font-size:14px;color:var(--blue);font-weight:700}.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}.feature-split.reverse>div:first-child{order:2}.feature-split h2{font-size:26px;color:var(--title);line-height:1.4;margin:10px 0}.feature-split p{margin:12px 0}.mini-link-list{display:grid;gap:8px;margin-top:18px}.mini-link-list a{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:9px 0;font-weight:700;color:var(--deep)}.article-list{display:grid;grid-template-columns:1fr 1fr;gap:15px}.article-list a{display:block;border-radius:13px;background:#fff;border:1px solid var(--line);padding:19px}.article-list b{display:block;color:var(--title)}.article-list span{font-size:14px;color:var(--muted)}.page-banner{padding:52px 0 42px;background:linear-gradient(130deg,#e7f8fd,#f5fbff 65%);border-bottom:1px solid var(--line)}.page-banner h1{font-size:34px;color:var(--title);line-height:1.38;margin:10px 0 14px}.page-banner p{max-width:780px;font-size:17px;margin:0}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:13px}.breadcrumb a{color:var(--blue)}.reading-shell{padding:43px 0 60px}.reading-shell .narrow{max-width:820px;margin:auto}.prose h2{color:var(--title);font-size:25px;line-height:1.45;margin:33px 0 12px}.prose h3{color:var(--deep);font-size:19px;line-height:1.45;margin:24px 0 8px}.prose p{margin:0 0 16px}.prose ul,.prose ol{padding-left:23px}.prose li{margin:9px 0}.lead{font-size:18px;color:var(--deep);border-left:4px solid var(--teal);padding:6px 0 6px 18px;margin-bottom:23px!important}.article-media{margin:25px 0}.two-column-article{display:grid;grid-template-columns:1fr 1fr;gap:21px;margin:22px 0}.info-panel{background:#fff;border:1px solid var(--line);padding:24px;border-radius:15px}.info-panel h2,.info-panel h3{margin-top:0}.quote-panel{border-left:4px solid #25b6e8;padding:22px 26px;background:#ebf7fc;border-radius:0 13px 13px 0;color:var(--deep);margin:24px 0;font-weight:600}.wide-table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;font-size:15px}.wide-table th{text-align:left;color:var(--deep);background:#dff5fb}.wide-table th,.wide-table td{border:1px solid var(--line);padding:12px 15px;vertical-align:top}.step-list{counter-reset:step;display:grid;gap:14px;margin:25px 0}.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:21px 22px 21px 67px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:19px;top:22px;width:32px;height:32px;border-radius:50%;background:var(--soft2);color:var(--blue);font-weight:800;display:grid;place-items:center}.step h3{margin:0 0 5px}.step p{margin:0}.rule-note{padding:20px 23px;background:#e9f8f9;border-left:4px solid var(--teal);border-radius:10px}.related{background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px;margin-top:42px}.related h2{margin:0 0 12px!important;font-size:21px!important}.related-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.related-list a{display:flex;justify-content:space-between;padding:13px;background:var(--bg);border-radius:10px;font-weight:700;font-size:14px;color:var(--deep)}.related-list span{color:var(--blue)}.feature-rail{display:grid;grid-template-columns:1fr 1fr;gap:25px}.timeline{border-left:2px solid #b2e4ef;padding-left:26px}.timeline section{position:relative;margin-bottom:22px}.timeline section:before{content:'';width:12px;height:12px;border-radius:50%;background:var(--teal);position:absolute;left:-33px;top:10px}.timeline h3{color:var(--deep);margin:0}.visual-index{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.visual-index figure{background:#fff;border:1px solid var(--line);padding:13px;margin:0;border-radius:16px}.visual-index figcaption{padding:12px 5px;font-size:14px}.visual-index figcaption strong{display:block;font-size:18px;color:var(--title)}.faq details{border-bottom:1px solid var(--line);padding:12px 0}.faq summary{font-weight:700;color:var(--deep);cursor:pointer}.faq p{padding-left:15px;margin:8px 0 4px}.site-footer{background:#123653;color:#eaf7ff;margin-top:0;padding:40px 0 20px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:45px}.footer-grid h2{font-size:17px;color:#fff;margin:2px 0 12px}.footer-grid a:not(.brand){display:block;font-size:14px;padding:3px 0;color:#eaf7ff}.footer-grid p{font-size:14px;max-width:400px;color:#d1e9f3}.footer-brand .brand-word{color:white}.footer-bottom{margin-top:30px;padding-top:16px;border-top:1px solid rgba(255,255,255,.2);display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#d1e9f3}.bottom-nav{display:none}.back-top{display:none;position:fixed;right:21px;bottom:23px;border:0;background:#1787db;color:#fff;width:43px;height:43px;border-radius:100%;z-index:20;box-shadow:0 6px 15px rgba(14,75,115,.16)}.back-top.show{display:block}
@media(max-width:1100px){.desktop-nav{gap:10px}.header-inner{gap:14px}.desktop-nav a{font-size:13px}.brand{min-width:115px}}
@media(max-width:980px){.desktop-nav{display:none}.menu-toggle{display:flex}.header-inner{height:60px;justify-content:space-between}.header-inner .brand{position:absolute;left:50%;transform:translateX(-50%);min-width:0}.header-inner .brand-logo{max-height:30px;max-width:132px}.header-inner .brand-word{font-size:18px}.header-inner .brand-word small{font-size:8px}.header-action{margin-left:auto;min-height:40px;font-size:13px;padding:0 14px}.hero-grid{grid-template-columns:1fr 1fr;gap:23px}.hero h1{font-size:34px}}
@media(max-width:700px){body{font-size:15px;line-height:1.78;padding-bottom:62px}.container{padding-inline:16px}.hero{padding:23px 0 29px}.hero-grid{display:flex;flex-direction:column-reverse;align-items:stretch;gap:20px}.hero h1{font-size:29px}.hero p{font-size:15px}.hero .media{height:195px}.hero-actions{margin-top:18px}.section{padding:30px 0}.section-head{align-items:start}.section-head h2,h2.section-title{font-size:22px}.section-head .text-link{margin-top:10px}.topic-grid{grid-template-columns:1fr 1fr;gap:11px}.topic-card{padding:16px;min-height:180px}.topic-card h3{font-size:17px}.topic-card p{font-size:13px}.feature-split,.feature-rail,.article-list,.two-column-article,.visual-index{grid-template-columns:1fr}.feature-split.reverse>div:first-child{order:0}.feature-split h2{font-size:22px}.media--landscape{height:180px}.media--wide{height:200px}.media--compact{height:160px}.media--portrait{height:260px}.page-banner{padding:27px 0}.page-banner h1{font-size:27px}.page-banner p{font-size:15px}.reading-shell{padding:26px 0 40px}.prose h2{font-size:21px}.prose h3{font-size:18px}.lead{font-size:16px}.info-panel{padding:17px}.related{padding:16px}.related-list{grid-template-columns:1fr}.wide-table{font-size:13px}.wide-table td,.wide-table th{padding:9px}.footer-grid{grid-template-columns:1fr 1fr;gap:23px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block}.bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;z-index:35;background:#fff;border-top:1px solid var(--line);min-height:58px;align-items:center;text-align:center}.bottom-nav a{font-weight:700;font-size:13px;color:var(--deep)}.bottom-nav a[aria-current]{color:var(--blue)}.back-top{bottom:77px}}
@media(max-width:360px){.header-inner{gap:6px}.header-action{font-size:12px;min-width:0;padding:0 10px}.brand-word{font-size:16px!important}.menu-toggle{width:39px}.topic-grid{grid-template-columns:1fr}.topic-card{min-height:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}