/* 开云体育：轻量杂志式多页面阅读系统 */
:root{--bg:#f4f7fa;--white:#fff;--pale:#eaf1f6;--cyan-pale:#e9f8f8;--nav:#102e46;--nav2:#163c57;--cyan:#13b8c5;--blue:#237bd3;--heading:#18364b;--text:#344c60;--muted:#64798a;--border:#dce6ed;--width:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 Arial,'PingFang SC','Microsoft YaHei',sans-serif}body.drawer-open{overflow:hidden}a{color:#1167ad;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}button{font:inherit;cursor:pointer}img{max-width:100%}h1,h2,h3,h4{line-height:1.38;color:var(--heading);letter-spacing:-.018em}h1{font-size:clamp(32px,3.6vw,42px);margin:0 0 22px}h2{font-size:clamp(24px,2.2vw,28px);margin:0 0 18px}h3{font-size:20px;margin:0 0 10px}p{margin:0 0 17px}section{scroll-margin-top:22px}.container{width:min(calc(100% - 56px),var(--width));margin-inline:auto}.reading{max-width:790px}.eyebrow{color:#087e91;font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin:0 0 15px}.lead{font-size:18px;line-height:1.85}.muted{color:var(--muted)}.skip-link{position:absolute;left:15px;top:-60px;background:#fff;padding:8px;z-index:80}.skip-link:focus{top:10px}.site-header{position:relative;z-index:15}.brand-strip{background:#fff;border-bottom:1px solid var(--border)}.brand-layout{display:flex;align-items:center;min-height:72px;gap:22px}.brand{display:flex;align-items:center;flex-shrink:0;gap:10px;color:var(--heading)}.brand:hover{text-decoration:none}.brand .media-frame{padding:0;border:0;background:transparent;width:auto}.brand .media-frame img{max-height:38px;width:auto}.brand .media-placeholder{min-width:70px;min-height:34px;font-size:10px}.brand-name{font-size:12px;font-weight:800;letter-spacing:.08em}.brand-subtitle{font-size:13px;color:var(--muted);margin-right:auto}.brand-subtitle i{font-style:normal;margin:0 8px;color:#a2b3c0}.entry-button{display:inline-flex;align-items:center;justify-content:center;background:var(--nav);color:white;min-height:42px;padding:0 22px;border-radius:8px;font-weight:700;white-space:nowrap;font-size:14px}.entry-button:hover{background:var(--nav2);color:#fff;text-decoration:none}.desktop-nav{background:var(--nav)}.desktop-nav-inner{display:grid;grid-template-columns:repeat(7,minmax(0,1fr))}.desktop-nav a{min-height:50px;display:flex;align-items:center;justify-content:center;white-space:nowrap;color:#e3eef5;font-weight:600;font-size:14px;position:relative}.desktop-nav a:hover{background:#20465f;text-decoration:none}.desktop-nav a[aria-current=page]{color:#fff;font-weight:800}.desktop-nav a[aria-current=page]:after{content:'';position:absolute;bottom:0;left:32%;right:32%;height:3px;background:var(--cyan)}.menu-toggle{display:none}.drawer-overlay,.mobile-drawer{display:none}.nojs-nav{display:flex;flex-wrap:wrap;gap:10px;padding-block:10px}.nojs-nav a{padding:4px 9px;background:white}.page{padding:42px 0 70px}.breadcrumbs{display:flex;gap:12px;color:var(--muted);font-size:13px;margin-bottom:25px}.breadcrumbs a{color:#32759c}.article-top{margin:0 0 43px}.article-top h1{font-size:clamp(30px,3.1vw,36px);max-width:950px}.article-top .lead{max-width:800px}.section{margin-top:58px}.section-line{border-top:1px solid var(--border);padding-top:35px}.panel{background:#fff;border:1px solid var(--border);border-radius:13px;padding:26px}.soft-panel{background:var(--pale);border-radius:12px;padding:26px}.cyan-panel{background:var(--cyan-pale);padding:26px;border-radius:12px}.dark-panel{background:var(--nav2);color:#eaf7fc;border-radius:13px;padding:32px}.dark-panel h2,.dark-panel h3{color:#fff}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:21px}.asymmetric{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);gap:28px}.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:34px;align-items:center}.split>* ,.grid-2>* ,.grid-3>* ,.asymmetric>*{min-width:0}.tag{display:inline-block;font-size:12px;font-weight:700;color:#087e91;background:#d9f3f4;border-radius:20px;padding:3px 10px;margin-bottom:14px}.btn-link{display:inline-block;background:var(--nav);color:white;padding:10px 20px;border-radius:9px;font-weight:700;margin:9px 9px 0 0}.btn-link.secondary{background:#e1f3f5;color:#075c70}.btn-link:hover{text-decoration:none;filter:brightness(1.08)}.home-cover{padding:48px 0 20px}.cover-grid{display:grid;grid-template-columns:52fr 48fr;gap:35px;align-items:center}.cover-grid>*{min-width:0}.cover-copy h1{max-width:610px}.cover-copy p{max-width:600px}.media-frame{display:flex;align-items:center;justify-content:center;width:100%;min-width:0;margin:0;padding:9px;background:var(--pale);border-radius:14px;border:1px solid #dfebf0}.media-frame img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--media-limit,220px);object-fit:contain;object-position:center}.media-frame--logo{--media-limit:38px}.media-frame--hero{--media-limit:310px}.media-frame--feature{--media-limit:250px}.media-frame--card{--media-limit:185px}.media-frame--mobile{--media-limit:350px;max-width:320px;margin-inline:auto}.media-frame--wide{--media-limit:210px}.media-placeholder{min-height:125px;min-width:100%;display:flex;align-items:center;justify-content:center;color:#637c8b;background:repeating-linear-gradient(130deg,#eaf1f6,#eaf1f6 16px,#e3edf3 16px,#e3edf3 32px);font-size:13px;border-radius:8px}.media-frame--hero .media-placeholder{min-height:230px}.media-frame--logo .media-placeholder{min-height:30px;min-width:100px}.directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 36px}.directory a{display:block;border-top:1px solid var(--border);padding:22px 0;color:var(--heading)}.directory a:hover{text-decoration:none;border-color:var(--cyan)}.directory h3{margin:0 0 6px}.directory p{color:var(--muted);margin:0}.directory .arrow{color:#087e91;font-size:19px;margin-top:6px}.focus-main{padding:34px;background:var(--nav2);color:#e4edf3;border-radius:14px}.focus-main h3{font-size:25px;color:white}.focus-main a{color:#95f3f1;font-weight:700}.focus-side{display:grid;gap:18px}.focus-side article{padding:22px;background:white;border:1px solid var(--border);border-radius:12px}.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.steps>div{position:relative;padding:22px 18px;background:#fff;border-top:3px solid var(--cyan);border-radius:7px}.steps>div:before{counter-increment:step;content:'0' counter(step);display:block;color:#138894;font-weight:800;font-size:24px;margin-bottom:10px}.steps h3{font-size:17px}.steps p{font-size:14px}.steps a{font-weight:700}.notice{border-left:4px solid var(--cyan);background:var(--cyan-pale);padding:18px 23px}.anchor-nav{display:flex;gap:12px;flex-wrap:wrap;margin:27px 0}.anchor-nav a{border:1px solid #cbdfe8;background:white;padding:8px 15px;border-radius:7px;font-weight:700}.side-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:32px}.side-layout>*{min-width:0}.sidebar{border-left:1px solid var(--border);padding-left:22px;font-size:14px}.sidebar strong{color:var(--heading)}.sidebar ul{padding-left:18px}.prose p{max-width:790px}.prose h2{margin-top:45px}.prose h3{margin-top:24px}.prose ul,.prose ol{padding-left:25px}.prose li{margin:7px 0}.table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--border);border-radius:10px;background:white}table{border-collapse:collapse;width:100%;min-width:590px;font-size:15px}caption{text-align:left;padding:16px 18px;color:var(--heading);font-weight:800}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--border);padding:13px 16px}th{background:#eaf1f6;color:var(--heading)}tr:last-child td{border-bottom:0}.vertical-steps{display:grid;gap:12px;counter-reset:vstep}.vertical-steps article{counter-increment:vstep;display:grid;grid-template-columns:55px 1fr;gap:20px;padding:22px;background:#fff;border:1px solid var(--border);border-radius:10px}.vertical-steps article:before{content:counter(vstep,decimal-leading-zero);font-size:24px;font-weight:800;color:#168c99}.mini-label{font-size:12px;color:#078596;text-transform:uppercase;letter-spacing:.1em;font-weight:800}.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px;align-items:start}.gallery article:nth-child(2){margin-top:45px}.gallery article{background:#fff;padding:18px;border:1px solid var(--border);border-radius:12px}.gallery h3{margin-top:17px}.faq-list{display:grid;gap:10px}.faq-list details{background:#fff;border:1px solid var(--border);border-radius:9px;padding:0 20px}.faq-list summary{cursor:pointer;font-weight:700;color:var(--heading);padding:15px 0}.faq-list details[open] summary{border-bottom:1px solid var(--border)}.faq-list details p{margin:13px 0 18px}.related{margin-top:60px;padding-top:30px;border-top:1px solid var(--border)}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.related-link{background:#fff;border:1px solid var(--border);border-radius:9px;padding:21px;display:grid;gap:7px}.related-link:hover{text-decoration:none;border-color:var(--cyan)}.related-link strong{color:var(--heading)}.related-link span{font-size:13px;color:var(--muted)}.related-link span:last-child{color:#168c99;font-size:19px}.service-layout{display:grid;grid-template-columns:235px minmax(0,1fr);gap:44px}.service-nav{align-self:start;background:white;padding:22px;border:1px solid var(--border);border-radius:12px}.service-nav a{display:block;padding:9px 0;border-bottom:1px solid var(--border)}.service-nav a:last-child{border:0}.service-body{min-width:0}.mobile-shortcuts{display:none}.footer{background:#0b2539;color:#dcecf5;padding:55px 0 22px;font-size:14px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}.footer a{color:#e5f9ff}.footer-brand{font-weight:800;font-size:24px}.footer-brand small{font-size:11px;vertical-align:middle;letter-spacing:.1em}.footer p{max-width:470px;color:#b7d0de}.footer nav{display:flex;flex-direction:column;gap:10px}.footer nav strong{margin-bottom:4px;color:white}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid #365267;margin-top:35px;padding-top:19px;color:#b7d0de;font-size:12px}#to-top{position:fixed;right:20px;bottom:20px;background:var(--nav);color:white;border:0;width:44px;height:44px;border-radius:50%;z-index:12;box-shadow:0 4px 15px #0002}#to-top[hidden]{display:none}
@media(max-width:1200px){.container{width:min(calc(100% - 44px),var(--width))}.brand-subtitle{font-size:12px}}@media(max-width:920px){.desktop-nav,.brand-subtitle,.brand-name{display:none}.brand-layout{min-height:62px;display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:8px}.brand{justify-self:center;min-width:0}.brand .media-frame img{max-height:30px}.entry-button{padding:0 12px;min-height:40px;font-size:12px}.menu-toggle{width:40px;height:40px;border:1px solid var(--border);background:white;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.menu-toggle span{display:block;width:18px;height:2px;background:var(--nav)}.drawer-overlay{display:block;position:fixed;inset:0;background:#071b2e99;z-index:30;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s,visibility .2s}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(86vw,340px);background:white;z-index:31;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .22s,visibility .22s;overflow:auto}.drawer-open .drawer-overlay{opacity:1;visibility:visible;pointer-events:auto}.drawer-open .mobile-drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-top{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;border-bottom:1px solid var(--border)}.drawer-top button{width:40px;height:40px;background:var(--pale);border:0;border-radius:8px;font-size:25px}.mobile-drawer nav{padding:16px 20px}.mobile-drawer nav p{font-size:12px;font-weight:800;color:var(--muted);margin:18px 0 4px}.mobile-drawer nav a{display:block;color:var(--heading);padding:9px 7px;border-bottom:1px solid var(--border);font-weight:700}.mobile-shortcuts{display:flex;justify-content:space-between;gap:10px;padding:18px 0 24px;font-size:13px}.mobile-shortcuts a{color:var(--heading)}.nojs-nav{display:flex}.page{padding-top:30px}}
@media(max-width:760px){.grid-2,.grid-3,.asymmetric,.split,.side-layout,.gallery,.service-layout,.related-grid{grid-template-columns:1fr}.sidebar{border-left:0;border-top:1px solid var(--border);padding:20px 0 0}.gallery article:nth-child(2){margin-top:0}.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.cover-grid{grid-template-columns:1fr}.home-cover{padding-top:33px}.service-body{grid-row:1}.service-nav{grid-row:2}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{gap:10px;flex-wrap:wrap}}
@media(max-width:640px){body{font-size:15px;line-height:1.77}.container{width:calc(100% - 32px)}h1{font-size:29px}h2{font-size:22px}h3{font-size:18px}.article-top h1{font-size:27px}.lead{font-size:16px}.section{margin-top:38px}.page{padding-bottom:45px}.cover-grid{gap:22px}.panel,.soft-panel,.cyan-panel,.dark-panel{padding:19px}.directory{grid-template-columns:1fr}.directory a{padding:15px 0}.media-frame--logo{--media-limit:30px}.media-frame--hero{--media-limit:205px}.media-frame--feature{--media-limit:185px}.media-frame--card{--media-limit:145px}.media-frame--wide{--media-limit:135px}.media-frame--mobile{--media-limit:285px;max-width:250px}.media-frame--hero .media-placeholder{min-height:150px}.steps{gap:10px}.steps>div{padding:14px}.vertical-steps article{padding:16px;grid-template-columns:38px 1fr;gap:10px}.footer{padding-top:34px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.entry-button{padding-inline:10px}.anchor-nav a{font-size:13px;padding:7px 10px}}
@media(max-width:380px){.entry-button{font-size:11px;padding:0 8px}.brand .media-frame img{max-height:27px}.steps{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}