/* KAIYUN SPORTS — responsive editorial design */
:root{--bg:#f5fbff;--white:#fff;--soft:#eaf7fc;--mint:#dff5fb;--cyan:#25c8d1;--sky:#25b6e8;--blue:#1787db;--deep:#174b78;--ink:#173b60;--body:#2d4359;--muted:#687f93;--line:#dcebf3;--shadow:0 12px 36px rgba(23,75,120,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--deep)}a:hover{color:#087fbc}img{max-width:100%}button{font:inherit;cursor:pointer}h1,h2,h3{color:var(--ink);line-height:1.38;margin:0 0 .65em}h1{font-size:clamp(28px,3.4vw,40px);letter-spacing:-.025em}h2{font-size:clamp(21px,2.3vw,26px)}h3{font-size:19px}p{margin:0 0 1.15em}ul,ol{padding-left:1.4em}li{margin:.3em 0}a:focus-visible,button:focus-visible{outline:3px solid var(--sky);outline-offset:3px}.wrap{max-width:1160px;margin:auto;padding-left:24px;padding-right:24px}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;box-shadow:0 2px 15px #14436708}.top-shell{display:flex;align-items:center;gap:24px;min-height:72px}.brand{display:flex;align-items:center;flex-shrink:0;text-decoration:none}.brand img{width:auto;height:36px;max-width:170px;object-fit:contain}.brand-name{font-weight:900;color:var(--deep);line-height:1.1;font-size:23px;white-space:nowrap}.brand-name span{color:var(--sky)}.brand-name small{display:block;font-size:9px;letter-spacing:.15em;color:var(--muted)}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:17px;flex:1}.desktop-nav a{display:block;padding:24px 0 21px;text-decoration:none;white-space:nowrap;font-size:14px;font-weight:650;border-bottom:3px solid transparent}.desktop-nav .active{color:var(--blue);border-color:var(--cyan)}.enter-btn,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 20px;border-radius:999px;background:linear-gradient(110deg,var(--cyan),var(--sky),var(--blue));color:white!important;text-decoration:none;font-size:14px;font-weight:700;white-space:nowrap;box-shadow:0 5px 15px #25b6e829}.enter-btn:hover,.btn:hover{filter:brightness(.96);transform:translateY(-1px)}.menu-toggle{display:none;border:0;background:none;width:40px;height:40px;padding:9px;flex-shrink:0}.menu-toggle span{display:block;height:2px;background:var(--deep);margin:5px 0;border-radius:3px}.drawer-backdrop{position:fixed;inset:0;background:#102d4988;z-index:39;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .23s,visibility .23s}.drawer{position:fixed;left:0;top:0;bottom:0;z-index:40;max-width:340px;width:86vw;background:#fff;box-shadow:var(--shadow);transform:translateX(-103%);visibility:hidden;pointer-events:none;transition:transform .25s,visibility .25s;overflow:auto;padding:20px}.drawer-head{display:flex;align-items:center;justify-content:space-between;font-weight:800;color:var(--ink);font-size:20px}.drawer-close{border:0;background:#edf8fb;border-radius:9px;width:40px;height:40px;font-size:28px;line-height:1}.drawer-section{border-bottom:1px solid var(--line);padding:17px 0}.drawer-section strong{color:var(--blue);display:block;font-size:13px;margin-bottom:4px}.drawer a{display:block;padding:8px 0;text-decoration:none;color:var(--ink)}.drawer-open .drawer-backdrop{opacity:1;visibility:visible;pointer-events:auto}.drawer-open .drawer{transform:translateX(0);visibility:visible;pointer-events:auto}body.drawer-open{overflow:hidden}.skip-link{position:absolute;top:-100px;z-index:99;background:white;padding:10px}.skip-link:focus{top:0}.hero{padding:47px 0 32px}.hero-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.15em;color:#0d94a7;text-transform:uppercase;margin-bottom:14px}.lead{font-size:18px;line-height:1.8;color:var(--deep);max-width:650px}.hero-meta,.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.tag{font-size:13px;color:var(--deep);padding:5px 12px;border:1px solid #bddfed;border-radius:999px;background:#fff}.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.text-link{font-weight:700;text-decoration:none}.media{display:flex;justify-content:center;align-items:center;width:100%;height:220px;overflow:hidden;border-radius:14px;background:var(--soft);border:1px solid var(--line)}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.hero-media{height:320px}.wide-media{height:260px}.small-media{height:175px}.portrait-media{height:290px}.media-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;background:radial-gradient(circle at 30% 20%,#c5f0f5,transparent 50%),linear-gradient(145deg,#eaf7fc,#d9edf9)}.placeholder-art{width:43%;aspect-ratio:1.6;border-radius:28px;transform:rotate(-12deg);border:14px solid #fff7;box-shadow:20px 18px 0 #39b4da22,-30px -17px 0 #25c8d11c}.section{padding:36px 0}.section-title{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.section-title p{margin:0;color:var(--muted);max-width:550px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:23px;min-width:0;box-shadow:0 3px 20px #174b7808}.card h3{margin:8px 0}.card p{font-size:15px;color:var(--muted)}.card a{text-decoration:none;font-weight:700}.kicker{font-size:12px;color:#008d9a;font-weight:800;letter-spacing:.08em}.section-tint{background:#eaf7fc}.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}.feature-split.reverse>:first-child{order:2}.feature-split.reverse>:last-child{order:1}.mini-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mini-index a{display:flex;justify-content:space-between;gap:14px;text-decoration:none;background:#fff;padding:17px 19px;border:1px solid var(--line);border-radius:10px;font-weight:700}.page-intro{padding:43px 0 27px;background:linear-gradient(135deg,#e8f9fd,#f5fbff 70%)}.page-intro .lead{max-width:790px}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:16px}.breadcrumb a{color:var(--muted);text-decoration:none}.article{max-width:820px;margin:0 auto;padding:34px 24px 58px}.article section{margin:0 0 35px}.article h2{margin-top:1.5em}.article h3{margin-top:1.3em}.article .media{margin:22px 0}.full-content{padding:30px 0 55px}.reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 255px;gap:38px;align-items:start}.reading-layout .article{padding:0;max-width:none}.toc{position:sticky;top:110px;border:1px solid var(--line);background:white;padding:20px;border-radius:14px}.toc strong{display:block;color:var(--ink);margin-bottom:9px}.toc a{display:block;padding:6px 0;text-decoration:none;font-size:14px}.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:20px 0}.compare>div,.note{background:var(--soft);padding:20px;border-radius:13px;border:1px solid var(--line)}.note{border-left:4px solid var(--cyan)}.table-scroll{overflow-x:auto;margin:18px 0 27px;border-radius:12px;border:1px solid var(--line)}table{width:100%;border-collapse:collapse;background:white;min-width:530px}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:13px 16px;font-size:15px}th{color:var(--ink);background:var(--soft)}tr:last-child td{border-bottom:0}.timeline{counter-reset:step;list-style:none;padding:0}.timeline li{position:relative;padding:0 0 22px 50px;border-left:2px solid var(--line);margin:0 0 0 17px}.timeline li:before{counter-increment:step;content:counter(step);position:absolute;left:-18px;top:0;width:34px;height:34px;border-radius:50%;background:var(--cyan);color:#fff;text-align:center;line-height:34px;font-weight:800}.timeline li:last-child{border-left:0}.related{border-top:1px solid var(--line);padding-top:26px;margin-top:35px}.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.related-links a{display:flex;justify-content:space-between;gap:5px;border:1px solid var(--line);background:white;padding:14px;border-radius:10px;text-decoration:none;font-size:14px;font-weight:700}.editorial-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:26px}.editorial-grid>*{min-width:0}.editorial-lead{background:#fff;border-radius:16px;border:1px solid var(--line);padding:24px}.editorial-stack{display:grid;gap:14px}.quote-band{border-radius:16px;background:linear-gradient(115deg,#174b78,#1787db);color:#fff;padding:27px 30px}.quote-band h2,.quote-band p{color:white}.faq details{border:1px solid var(--line);background:white;border-radius:10px;padding:13px 18px;margin:10px 0}.faq summary{font-weight:750;color:var(--ink);cursor:pointer}.faq p{margin:12px 0 2px}.site-footer{background:#123653;color:#eaf7ff;padding:48px 0 15px}.site-footer h2{font-size:17px;color:white}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}.footer-brand{font-weight:800;font-size:24px;color:white}.footer-brand small{display:block;font-size:11px;letter-spacing:.13em}.footer-grid p{font-size:14px;color:#d0e4f1}.site-footer nav{display:grid;grid-template-columns:repeat(2,1fr);gap:7px 12px}.site-footer a{color:#eaf7ff;text-decoration:none;font-size:14px}.copyright{border-top:1px solid #ffffff22;margin-top:35px;padding-top:15px;font-size:12px;color:#c3dbeb}.bottom-nav{display:none}.back-top{position:fixed;bottom:25px;right:18px;width:42px;height:42px;border:0;border-radius:50%;background:var(--deep);color:white;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s;z-index:25}.back-top.visible{opacity:1;visibility:visible}
@media(max-width:1100px){.desktop-nav{gap:10px}.desktop-nav a{font-size:13px}.top-shell{gap:14px}}
@media(max-width:980px){.desktop-nav{display:none}.menu-toggle{display:block}.top-shell{justify-content:space-between;min-height:60px;position:relative}.brand{position:absolute;left:50%;transform:translateX(-50%)}.brand img{height:29px;max-width:130px}.brand-name{font-size:19px}.enter-btn{margin-left:auto;min-height:40px;padding:0 13px;font-size:13px}.footer-grid{gap:20px}}
@media(max-width:700px){body{font-size:15px}.wrap{padding-left:16px;padding-right:16px}h1{font-size:29px}h2{font-size:21px}.lead{font-size:16px}.hero{padding:26px 0 14px}.hero-layout{grid-template-columns:1fr;gap:20px}.hero-layout>.media{order:-1}.hero-media{height:210px}.wide-media{height:185px}.media{height:160px}.portrait-media{height:260px}.section{padding:27px 0}.section-title{display:block}.cards,.mini-index,.compare,.editorial-grid,.feature-split,.reading-layout,.footer-grid{grid-template-columns:1fr}.card{padding:19px}.reading-layout .toc{position:static;order:-1}.feature-split.reverse>:first-child,.feature-split.reverse>:last-child{order:initial}.page-intro{padding:28px 0 18px}.article{padding:15px 16px 34px}.full-content{padding:20px 0 35px}.related-links{grid-template-columns:1fr}.site-footer{padding-bottom:80px}.footer-grid{gap:26px}.bottom-nav{display:grid;position:fixed;z-index:29;bottom:0;left:0;right:0;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);padding:7px 0 max(7px,env(safe-area-inset-bottom));box-shadow:0 -2px 16px #113d650d}.bottom-nav a{text-align:center;text-decoration:none;font-size:13px;font-weight:700;padding:4px 0}.back-top{bottom:84px}.section-title p{margin-top:5px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}