/* KAIYUN SPORTS — self-contained responsive editorial design */
:root{--bg:#F6F8F8;--white:#FFFFFF;--mist:#EAF0F2;--navy:#122E3B;--deep:#1A4050;--teal:#168E96;--link:#226D9D;--head:#193946;--body:#374D58;--muted:#647981;--line:#D9E3E6;--footer:#0C2632;font-family:Arial,'PingFang SC','Microsoft YaHei',sans-serif;color:var(--body);background:var(--bg);scroll-padding-top:100px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-size:16.5px;line-height:1.8}a{color:var(--link);text-underline-offset:.22em}a:hover{color:var(--teal)}:focus-visible{outline:3px solid var(--teal);outline-offset:3px}img{max-width:100%;height:auto}p{margin:0 0 1.05em}h1,h2,h3{color:var(--head);line-height:1.35;letter-spacing:.01em}h1{font-size:clamp(34px,3vw,42px);margin:0 0 22px}h2{font-size:27px;margin:0 0 20px}h3{font-size:20px;margin:0 0 13px}h2[id],h3[id],section[id]{scroll-margin-top:100px}.wrap{max-width:1220px;padding:0 28px;margin:auto}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:absolute;left:10px;top:-70px;background:white;color:var(--navy);z-index:100;padding:10px}.skip:focus{top:8px}.site-header{background:var(--navy);color:#fff;position:relative;z-index:10}.header-inner{max-width:1220px;padding:0 28px;margin:auto;display:flex;align-items:center;gap:15px;min-height:76px}.brand{display:flex;align-items:center;flex-shrink:0;min-width:145px;gap:8px;text-decoration:none;color:#fff}.brand span{font-size:10px;letter-spacing:.08em;white-space:nowrap}.logo-holder{margin:0;padding:0;display:flex;align-items:center;justify-content:flex-start}.logo-holder img{display:block;max-width:118px;max-height:38px;width:auto;height:auto;object-fit:contain}.logo-holder.image-unavailable{max-width:105px;font-size:11px;color:#e6f3f5;background:none}.desktop-nav{display:flex;justify-content:center;align-items:center;flex:1;gap:clamp(7px,1.2vw,17px);min-width:0}.desktop-nav a{font-size:clamp(11px,.95vw,13px);color:#e0edef;text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent;padding:25px 0 22px}.desktop-nav a:hover,.desktop-nav a[aria-current=page]{color:white;border-color:#56c7c7;font-weight:700}.entry-link{flex-shrink:0;white-space:nowrap;background:var(--teal);color:white;text-decoration:none;border-radius:8px;font-weight:700;padding:7px 12px;font-size:13px}.entry-link:hover{color:white;background:#11757c}.mobile-nav{display:none}.breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;padding-top:15px;padding-bottom:15px}.breadcrumb a{color:var(--muted)}main.wrap{padding-bottom:70px}.hero{display:grid;grid-template-columns:minmax(0,1.38fr) minmax(0,1fr);gap:38px;align-items:center;padding:30px 0 45px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--teal);margin-bottom:15px}.lede{font-size:18px;line-height:1.85}.button-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.button-links a,.text-action{display:inline-block;text-decoration:none;border-bottom:2px solid var(--teal);font-weight:700;padding:5px 1px}.image-holder{margin:0;display:flex;align-items:center;justify-content:center;min-width:0;width:100%;padding:8px;background:var(--mist);border-radius:12px}.image-holder img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--image-limit,210px);object-fit:contain;object-position:center}.image-holder--hero{--image-limit:290px}.image-holder--feature{--image-limit:240px}.image-holder--inline{--image-limit:180px}.image-holder--rules{--image-limit:210px}.image-holder--banner{--image-limit:190px}.image-holder--portrait{--image-limit:330px;max-width:310px;margin-inline:auto}.image-unavailable{font-size:13px;color:var(--muted);background:var(--mist);border:1px dashed var(--line);padding:10px 13px;border-radius:8px}.section{margin-top:56px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);margin-bottom:24px}.section-head h2{margin-bottom:13px}.route-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.route-group{background:white;border-top:3px solid var(--teal);padding:23px 19px}.route-item+.route-item{border-top:1px solid var(--line);padding-top:18px;margin-top:18px}.route-item small{font-size:12px;color:var(--teal);font-weight:bold}.route-item h3{font-size:18px;margin:6px 0 8px}.route-item p{font-size:14px}.feature-split{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px}.feature-split>article{background:white;padding:26px;border-left:4px solid var(--teal)}.short-notes{display:grid;gap:14px}.short-notes>div{background:var(--mist);padding:20px}.short-notes h3{font-size:18px}.alternating{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.prose{max-width:780px}.prose p,.prose li{line-height:1.85}.article-head{padding:22px 0 30px;max-width:850px}.article-head p{font-size:18px}.article-shell{display:grid;grid-template-columns:215px minmax(0,1fr);gap:38px;align-items:start}.side-index{position:sticky;top:20px;background:var(--mist);padding:20px;border-left:3px solid var(--teal)}.side-index a{display:block;margin:9px 0;text-decoration:none;font-size:14px}.article-content{min-width:0}.article-content section{margin-bottom:42px}.article-content h2{border-bottom:1px solid var(--line);padding-bottom:10px}.section-index{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0 34px;border-block:1px solid var(--line);padding:14px 0}.section-index a{text-decoration:none;padding:5px 10px;background:var(--mist);border-radius:5px;font-size:14px}.wide-panel{background:white;padding:30px;margin:35px 0}.soft-panel{background:var(--mist);padding:25px;margin:24px 0}.deep-panel{background:var(--deep);padding:28px;color:white}.deep-panel h2,.deep-panel h3{color:white}.num-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:20px 0}.num-step{border-top:3px solid var(--teal);padding:13px;background:white}.num-step b{font-size:20px;color:var(--teal)}.num-step h3{font-size:17px;margin:6px 0}.num-step p{font-size:14px}.compare{overflow-x:auto;max-width:100%;margin:25px 0;border:1px solid var(--line);background:white}.compare table{border-collapse:collapse;width:100%;min-width:570px;font-size:15px}.compare caption{text-align:left;font-weight:700;padding:15px;color:var(--head)}.compare th,.compare td{padding:13px 15px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.compare th{background:var(--mist);color:var(--head)}.compare tr:last-child td{border:0}.topic-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.topic-columns>article{padding:22px;background:white;border-top:3px solid var(--teal)}.topic-columns h3{font-size:19px}.long-read{max-width:800px;margin:36px auto}.callout{border-left:3px solid var(--teal);padding:14px 20px;background:var(--mist);margin:24px 0}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:14px 6px}.faq summary{cursor:pointer;font-weight:700;color:var(--head);padding:4px}.faq details p{margin:12px 4px 6px}.related{border-top:1px solid var(--line);margin-top:50px;padding-top:23px}.related-links{display:flex;gap:15px;flex-wrap:wrap}.related-links a{display:inline-block;padding:11px 14px;background:var(--mist);border-radius:8px;text-decoration:none}.reading-path{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.reading-path>div{padding:18px 15px;border-top:2px solid var(--teal);background:white}.reading-path b{color:var(--teal)}.about-cols{display:grid;grid-template-columns:1.35fr .85fr;gap:34px}.site-footer{background:var(--footer);color:#c9d9df;padding:38px 0}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:45px}.footer-heading{font-size:21px;font-weight:700;color:white}.footer-heading span{font-size:11px;letter-spacing:.1em}.site-footer strong{color:white}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:12px}.site-footer a{color:#d7eef4}.fine{font-size:13px;color:#b9cbd0}.micro{font-size:13px;color:var(--muted)}@media(max-width:1100px){.wrap,.header-inner{padding-left:22px;padding-right:22px}.brand{min-width:124px}.brand span{font-size:9px}.desktop-nav{gap:8px}.desktop-nav a{font-size:11px}}@media(max-width:980px){.header-inner{min-height:64px;justify-content:space-between}.desktop-nav{display:none}.brand{min-width:0;margin-inline:auto}.brand img{max-height:30px}.brand span{display:none}.mobile-nav{display:block;flex:0 0 42px}.mobile-nav>summary{list-style:none;cursor:pointer;width:42px;height:42px;display:flex;align-items:center;justify-content:center;font-size:23px}.mobile-nav>summary::-webkit-details-marker{display:none}.mobile-nav>nav{position:absolute;left:0;right:0;top:100%;background:var(--navy);padding:12px max(20px,calc((100vw - 1176px)/2));border-top:1px solid #46606a;box-shadow:0 12px 20px #122e3b22;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.menu-group strong{display:block;color:#89ced0;font-size:13px}.menu-group a{display:block;color:#fff;padding:7px 0;text-decoration:none}.menu-group a[aria-current=page]{text-decoration:underline;font-weight:bold}.entry-link{font-size:12px}.route-groups{gap:12px}}@media(max-width:760px){.hero,.alternating,.feature-split,.article-shell,.about-cols,.footer-grid{grid-template-columns:1fr}.article-shell{gap:10px}.side-index{position:static}.hero{gap:20px}.num-grid,.reading-path{grid-template-columns:repeat(2,minmax(0,1fr))}.route-groups,.topic-columns{grid-template-columns:1fr 1fr}.section{margin-top:40px}.section-head{display:block}.wide-panel{padding:19px}}@media(max-width:640px){body{font-size:15.5px}.wrap,.header-inner{padding-left:16px;padding-right:16px}.header-inner{min-height:60px}.mobile-nav>nav{grid-template-columns:1fr;gap:10px;max-height:75vh;overflow-y:auto}.menu-group{border-bottom:1px solid #45616a;padding-bottom:8px}.menu-group a{padding:5px}.brand img{max-height:30px}h1{font-size:28px}h2{font-size:22px}h3{font-size:18px}.lede,.article-head p{font-size:16px}.hero{padding-top:15px}.route-groups,.topic-columns,.reading-path{grid-template-columns:1fr}.route-group{padding:16px}.num-grid{grid-template-columns:1fr 1fr}.num-step{padding:10px}.num-step h3{font-size:15px}.image-holder--hero{--image-limit:195px}.image-holder--feature{--image-limit:180px}.image-holder--inline{--image-limit:140px}.image-holder--rules{--image-limit:165px}.image-holder--banner{--image-limit:125px}.image-holder--portrait{--image-limit:275px;max-width:240px}.wide-panel,.soft-panel,.deep-panel{padding:18px}.footer-links{grid-template-columns:1fr 1fr}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}