/* 开云体育 / KAIYUN SPORTS：原生响应式设计 */
:root{--paper:#f5fbff;--white:#fff;--mist:#eaf7fc;--ice:#dff5fb;--aqua:#25c8d1;--sky:#25b6e8;--blue:#1787db;--deep:#174b78;--ink:#173b60;--text:#2d4359;--muted:#687f93;--line:#dcebf3;--footer:#123653;--radius:18px;--shadow:0 12px 32px rgba(24,93,136,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:94px}body{margin:0;background:var(--paper);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);overflow-x:hidden}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:3px}img{max-width:100%}button{font:inherit;cursor:pointer}.container{width:min(1160px,calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;left:-9999px;top:6px;z-index:200;background:#fff;padding:8px}.skip-link:focus{left:10px}.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 5px 22px rgba(29,91,142,.035)}.header-inner{height:72px;display:flex;align-items:center;gap:25px}.brand{display:inline-flex;align-items:center;flex:0 0 auto;min-width:155px;gap:9px;white-space:nowrap}.brand img{display:block;max-width:180px;max-height:38px;width:auto;height:auto;object-fit:contain}.brand-mark{display:grid;place-items:center;width:39px;height:39px;border-radius:12px;color:#fff;background:linear-gradient(120deg,var(--aqua),var(--blue));font-size:23px;font-weight:900}.brand-type{font-weight:900;line-height:1.1;color:var(--deep);font-size:19px}.brand-type small,.footer-brand small,.drawer-name small{display:block;letter-spacing:1.3px;font-size:9px;color:var(--sky);line-height:1.8}.desktop-nav{display:flex;align-items:center;gap:23px;justify-content:center;flex:1}.desktop-nav a{font-size:14px;font-weight:700;white-space:nowrap;color:var(--deep);padding:23px 0;position:relative}.desktop-nav a:hover,.desktop-nav a[aria-current]{color:var(--blue)}.desktop-nav a[aria-current]:after{content:'';height:3px;background:var(--aqua);position:absolute;bottom:13px;left:0;right:0;border-radius:9px}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-width:82px;height:42px;padding:0 20px;border-radius:999px;background:linear-gradient(110deg,#25c8d1,#25b6e8,#1787db);color:#fff;font-weight:700;white-space:nowrap;box-shadow:0 6px 16px rgba(23,135,219,.17);transition:transform .2s,box-shadow .2s}.main-btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(23,135,219,.24)}.header-entry{font-size:14px}.menu-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:0;background:transparent;width:42px;height:42px}.menu-toggle span{width:21px;height:2px;background:var(--deep);border-radius:9px}.drawer-backdrop,.mobile-drawer{visibility:hidden;pointer-events:none}.drawer-backdrop{position:fixed;inset:0;z-index:60;background:rgba(10,35,55,.55);opacity:0;transition:opacity .25s,visibility .25s}.mobile-drawer{position:fixed;z-index:61;left:0;top:0;bottom:0;width:min(86vw,340px);background:#fff;transform:translateX(-102%);transition:transform .28s,visibility .28s;box-shadow:15px 0 35px rgba(0,0,0,.1);overflow-y:auto}.drawer-open{overflow:hidden}.drawer-open .drawer-backdrop,.drawer-open .mobile-drawer{visibility:visible;pointer-events:auto}.drawer-open .drawer-backdrop{opacity:1}.drawer-open .mobile-drawer{transform:translateX(0)}.drawer-top{display:flex;justify-content:space-between;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line)}.drawer-name{font-weight:900;color:var(--ink)}.drawer-close{background:var(--mist);border:0;width:38px;height:38px;border-radius:50%;font-size:27px;color:var(--ink)}.mobile-drawer nav{padding:12px 22px 28px;display:flex;flex-direction:column}.mobile-drawer nav p{margin:17px 0 7px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:2px}.mobile-drawer nav a{padding:10px 6px;border-bottom:1px solid var(--line);font-size:15px}.mobile-drawer nav a:hover{color:var(--blue)}
.hero{padding:54px 0 32px;background:radial-gradient(ellipse at 76% 17%,#d9f5fb 0,transparent 55%),linear-gradient(160deg,#f9fdff,#f0f9fd)}.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:45px}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;letter-spacing:2px;font-weight:800;text-transform:uppercase}.eyebrow:before{content:'';width:18px;height:3px;border-radius:5px;background:var(--aqua)}h1,h2,h3{color:var(--ink);line-height:1.38;margin:0;font-weight:800}h1{font-size:38px;letter-spacing:-.8px;margin:17px 0}h2{font-size:25px}h3{font-size:19px}p{margin:0 0 16px}.hero-lead{font-size:17px;line-height:1.9;max-width:620px;color:#47647c}.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin:26px 0}.ghost-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 19px;border:1px solid #b4dfeb;border-radius:999px;background:rgba(255,255,255,.78);font-weight:700;color:var(--deep)}.micro-note{font-size:13px;color:var(--muted)}.media{width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:var(--radius);background:var(--mist);border:1px solid var(--line)}.media img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;object-position:center}.media-empty{flex-direction:column;color:#3c8bb6;gap:10px;text-align:center;font-size:13px;letter-spacing:2px;font-weight:700;background:linear-gradient(135deg,#e9faff,#d8f0f8);}.media-glyph{font-size:56px;line-height:1;color:var(--aqua);opacity:.55}.hero-media{height:316px}.hero-media img{max-height:316px}.feature-media{height:230px}.feature-media img{max-height:230px}.card-media{height:168px}.card-media img{max-height:168px}.wide-media{height:238px}.wide-media img{max-height:238px}.portrait-media{height:320px;max-width:350px}.portrait-media img{max-height:320px}
.section{padding:43px 0}.section-heading{margin-bottom:23px}.section-heading h2{margin:9px 0 8px}.section-heading p{max-width:760px;color:var(--muted)}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:21px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:23px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.card-body{padding:22px}.card h3{margin:8px 0 11px}.card p{font-size:15px;color:#577186;line-height:1.78}.tag{display:inline-block;font-size:12px;color:var(--blue);font-weight:800;letter-spacing:1px}.text-link{color:var(--blue);font-size:14px;font-weight:800}.text-link:hover{text-decoration:underline}.section-alt{background:#edf8fc}.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}.feature-copy h2{margin:11px 0 16px}.feature-copy p{line-height:1.9}.chip-list{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.chip-list span{padding:6px 13px;border:1px solid #cce8f0;background:#fff;border-radius:999px;font-size:13px;color:var(--deep)}.editor-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.editor-link{display:flex;gap:15px;align-items:flex-start;background:#fff;padding:20px;border:1px solid var(--line);border-radius:15px}.editor-num{font-weight:900;color:#29b6c6;font-size:25px;line-height:1.3}.editor-link strong{display:block;color:var(--ink);margin-bottom:5px}.editor-link small{display:block;color:var(--muted);line-height:1.5}.page-hero{background:linear-gradient(135deg,#eaf9fd,#f9fdff);padding:47px 0 43px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:33px;max-width:860px}.page-hero p{max-width:770px;color:#536c83;font-size:17px;margin:10px 0 0}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:14px}.breadcrumbs a{color:var(--blue)}.article-shell{display:grid;grid-template-columns:minmax(0,790px) minmax(180px,1fr);gap:65px;padding:42px 0}.article{max-width:800px}.article h2{margin:38px 0 17px}.article h3{margin:25px 0 10px}.article p,.article li{line-height:1.83}.article p{margin-bottom:19px}.article ul,.article ol{padding-left:24px}.article li{margin:9px 0}.article aside.note,.note{border-left:4px solid var(--aqua);padding:18px 21px;background:var(--mist);border-radius:0 12px 12px 0;margin:24px 0}.toc{position:sticky;top:110px;align-self:start;border-radius:15px;border:1px solid var(--line);background:white;padding:23px}.toc strong{display:block;color:var(--ink);margin-bottom:12px}.toc a{display:block;color:var(--muted);padding:7px 0;font-size:14px}.toc a:hover{color:var(--blue)}.comparison{width:100%;border-collapse:collapse;background:white;border-radius:12px;overflow:hidden;margin:22px 0;font-size:15px}.comparison th,.comparison td{border-bottom:1px solid var(--line);padding:13px 15px;text-align:left;vertical-align:top}.comparison th{color:var(--deep);background:#e9f7fc}.comparison td:first-child{font-weight:700;color:var(--ink)}.number-step{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}.number-step b{font-size:26px;color:var(--aqua)}.number-step h3{margin:1px 0 7px}.quote-panel{padding:24px 28px;background:linear-gradient(135deg,#e0f7fb,#f7fdff);border-radius:16px;color:var(--deep);font-weight:700;margin:23px 0}.related{padding:35px 0 58px;border-top:1px solid var(--line)}.related-links{display:flex;flex-wrap:wrap;gap:12px}.related-link{display:inline-flex;background:#fff;border:1px solid var(--line);padding:12px 18px;border-radius:12px;color:var(--deep);font-weight:700;font-size:14px}.related-link:hover{border-color:var(--aqua);color:var(--blue)}.feature-index{display:grid;grid-template-columns:1.15fr .85fr;gap:29px;align-items:center}.info-panels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.info-panel{border-radius:16px;background:white;padding:22px;border:1px solid var(--line)}.info-panel h3{margin-bottom:9px}.info-panel p{font-size:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:20px 22px;margin-bottom:12px}.faq-item h3{font-size:17px;margin-bottom:8px}.faq-item p{margin:0}.about-lead{font-size:17px;color:var(--deep)}.culture-strip{padding:26px;background:#fff;border:1px solid var(--line);border-radius:16px;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.site-footer{background:var(--footer);color:#eaf7ff;padding:48px 0 21px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:65px}.footer-brand{font-weight:900;font-size:22px}.footer-grid p{max-width:440px;font-size:14px;color:#cae4f1;margin-top:14px}.footer-grid strong{display:block;font-size:15px;margin-bottom:10px}.footer-grid a{display:block;font-size:14px;margin:5px 0;color:#d0e7f1}.footer-grid a:hover{color:#fff;text-decoration:underline}.footer-bottom{border-top:1px solid rgba(255,255,255,.17);padding-top:18px;margin-top:25px;display:flex;justify-content:space-between;gap:15px;color:#bdd8e8;font-size:12px}.back-top{position:fixed;right:23px;bottom:23px;border:0;width:43px;height:43px;border-radius:50%;background:var(--blue);color:white;font-size:23px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s}.back-top.visible{opacity:1;visibility:visible;pointer-events:auto}.mobile-bottom-nav{display:none}
@media(max-width:1100px){.desktop-nav{gap:14px}.desktop-nav a{font-size:13px}.header-inner{gap:16px}.brand{min-width:135px}}@media(max-width:980px){.desktop-nav{display:none}.menu-toggle{display:flex}.header-inner{height:60px;justify-content:space-between;position:relative}.brand{position:absolute;left:50%;transform:translateX(-50%);min-width:unset;max-width:45%;justify-content:center}.brand img{max-height:30px;max-width:150px}.brand-type{font-size:17px}.brand-mark{width:31px;height:31px;font-size:19px}.header-entry{height:39px;font-size:13px;padding:0 15px;min-width:75px;margin-left:auto}.hero-grid{gap:24px}.article-shell{grid-template-columns:minmax(0,1fr);gap:0}.toc{display:none}.footer-grid{gap:30px}}@media(max-width:680px){.container{width:calc(100% - 32px)}.hero{padding:25px 0 22px}.hero-grid{grid-template-columns:1fr;gap:25px}.hero-grid .hero-image{grid-row:1}.hero h1{font-size:29px}.hero-lead{font-size:15px}.hero-media{height:205px}.hero-media img{max-height:205px}.hero-actions{margin:19px 0}.section{padding:28px 0}.section-heading{margin-bottom:18px}.section-heading h2{font-size:21px}.grid-3,.grid-2,.editor-list,.feature-split,.feature-index,.info-panels,.culture-strip{grid-template-columns:1fr}.feature-split{gap:22px}.card-body{padding:18px}.card-media{height:155px}.feature-media,.wide-media{height:185px}.portrait-media{height:240px;max-width:100%}.page-hero{padding:27px 0}.page-hero h1{font-size:27px}.page-hero p{font-size:15px}.article-shell{padding:23px 0}.article h2{font-size:21px;margin:28px 0 13px}.article h3{font-size:17px}.article p,.article li{font-size:15px}.comparison{font-size:13px}.comparison th,.comparison td{padding:10px}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column}.site-footer{padding:35px 0 85px}.mobile-bottom-nav{position:fixed;bottom:0;left:0;right:0;height:60px;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);z-index:45;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom-nav a{display:grid;place-items:center;font-size:13px;color:var(--deep);font-weight:700}.mobile-bottom-nav a[aria-current]{color:var(--blue);background:#effaff}.back-top{bottom:78px;right:16px}.brand-type small{font-size:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}