/* Shared Chinese navigation only; course typography stays in each site's styles. */
.ch-header .ch-course-menu{position:relative}
.ch-header .ch-course-menu>summary{display:flex;align-items:center;gap:8px;min-height:44px;cursor:pointer;list-style:none;font:inherit;white-space:nowrap}
.ch-header .ch-course-menu>summary::-webkit-details-marker{display:none}
.ch-course-menu>summary>span{font-size:15px;transition:transform .15s}
.ch-course-menu[open]>summary>span{transform:rotate(180deg)}
.ch-course-dropdown{position:absolute;inset-inline-start:0;top:calc(100% + 8px);z-index:70;width:min(370px,calc(100vw - 40px));max-height:70dvh;overflow:auto;padding:10px;border:1px solid #dfe6d6;border-radius:16px;background:#fff;box-shadow:0 16px 40px #28473b20;white-space:normal}
.ch-course-dropdown a{display:block;padding:12px 14px!important;border-radius:9px;font-size:15px;line-height:1.6;white-space:normal;overflow-wrap:anywhere;hyphens:auto}
.ch-course-dropdown a:hover,.ch-course-dropdown a:focus-visible{background:#eef3e5}
.ch-course-dropdown .ch-course-all{border-top:1px solid #e3e8db;margin-top:5px;border-radius:0;padding-top:14px!important}
.ch-region-trigger{display:flex;align-items:center;gap:8px;background:none;border:1px solid #dfe6d6;border-radius:999px;padding:8px 12px;color:inherit;min-height:43px;cursor:pointer;max-width:210px}
.ch-region-trigger svg{flex-shrink:0}.ch-current-region{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px}
@media(max-width:1100px){
 .ch-site .ch-header .ch-mobile-menu nav{right:auto;left:auto;inset-inline-end:0;width:min(340px,calc(100vw - 40px));max-height:calc(100dvh - 100px);overflow:auto}
 .ch-mobile-menu .ch-course-dropdown{position:static;width:auto;max-height:none;border:0;border-inline-start:2px solid #dfe6d6;border-radius:0;box-shadow:none;margin:4px 0 12px;padding:0 0 0 4px;background:transparent}
 .ch-mobile-menu .ch-course-dropdown a{font-size:14px}
}
@media(max-width:760px){
 .ch-site .ch-header .ch-button,.ch-site .ch-header .ch-login,.ch-site .ch-header .ch-brand>span{display:none}
 .ch-site .ch-header-actions{gap:10px}
 .ch-site .ch-region-trigger{padding:9px;min-width:43px;justify-content:center}.ch-site .ch-current-region{display:none}
}

/* Collapse only when the translated header actually needs more room. */
.ch-site .ch-header.ch-nav-compact .ch-desktop-nav{display:none}
.ch-site .ch-header.ch-nav-compact .ch-header-inner{justify-content:space-between}
.ch-site .ch-header.ch-nav-compact .ch-header-actions{margin-inline-start:auto}
.ch-site .ch-header.ch-nav-compact .ch-mobile-menu{display:block;position:relative}
.ch-nav-compact .ch-mobile-menu>summary{list-style:none;min-width:38px;min-height:44px;display:grid;place-items:center;cursor:pointer;font-size:23px;line-height:1}
.ch-nav-compact .ch-mobile-menu>summary::-webkit-details-marker{display:none}
.ch-site .ch-header.ch-nav-compact .ch-mobile-menu nav{position:absolute;right:auto;left:auto;inset-inline-end:0;top:54px;width:min(340px,calc(100vw - 40px));max-height:calc(100dvh - 100px);overflow:auto;border:1px solid #dfe6d6;border-radius:16px;padding:14px 20px;background:#fff;box-shadow:0 14px 30px #28473b12;display:flex;flex-direction:column;z-index:60}
.ch-nav-compact .ch-mobile-menu nav a{font-size:14px;min-height:45px;padding:10px 0}
.ch-nav-compact .ch-mobile-menu .ch-course-dropdown{position:static;width:auto;max-height:none;border:0;border-inline-start:2px solid #dfe6d6;border-radius:0;box-shadow:none;margin:4px 0 12px;padding:0 0 0 4px;background:transparent}
/* A full-screen country selector, shared by every Chinese programme page. */
html.ch-region-open{overflow:hidden}
.ch-region-dialog{position:fixed;inset:0;width:100%;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;border-radius:0;background:#fff;color:#28473b;box-shadow:none;overflow-y:auto;overscroll-behavior:contain}
.ch-region-dialog::backdrop{background:#fff}
.ch-region-head,.ch-region-content{width:min(1216px,calc(100% - 80px));margin-inline:auto}
.ch-region-head{position:sticky;top:0;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:40px 0 28px;background:#fffffff7;backdrop-filter:blur(8px)}
.ch-region-head h2{font-family:inherit;font-size:32px;font-weight:600;line-height:1.3;letter-spacing:-.03em;margin:0}
.ch-region-close{display:grid;place-items:center;flex-shrink:0;width:44px;height:44px;padding:0;background:none;border:0;border-radius:0;font:30px/1 sans-serif;color:inherit;cursor:pointer}
.ch-region-content{padding:4px 0 64px}
.ch-region-international{display:inline-flex!important;align-items:center;gap:14px;font-size:20px!important;line-height:1.5;font-weight:500;padding:8px 0!important;margin:0 0 20px;color:#527446!important}
.ch-region-group{padding:30px 0 24px}
.ch-region-group h3{font-family:inherit;font-size:26px;line-height:1.4;font-weight:600;letter-spacing:-.025em;margin:0 0 26px}
.ch-region-markets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:64px;row-gap:30px;align-items:start}
.ch-region-market{min-width:0}
.ch-region-market h4{font-family:inherit;font-size:17px;line-height:1.5;letter-spacing:0;font-weight:500;margin:0 0 8px;overflow-wrap:break-word;hyphens:none}
.ch-region-languages{display:flex;align-items:flex-start;flex-wrap:wrap;gap:2px 18px}
.ch-region-option{display:inline-flex;align-items:center;gap:8px;max-width:100%;min-height:36px;padding:3px 0;border:0;border-radius:0;background:none;color:#527446;text-decoration:none;font-size:15px;font-weight:400;line-height:1.6;overflow-wrap:anywhere}
.ch-region-option:hover,.ch-region-option:focus-visible{text-decoration:underline;text-underline-offset:4px}
.ch-region-option[aria-current=true]{font-weight:600;color:#28473b}
.ch-region-check{font-size:14px;line-height:1;flex-shrink:0}
.ch-site .ch-region-trigger:focus-visible,.ch-site .ch-region-close:focus-visible,.ch-site .ch-region-option:focus-visible{outline:3px solid #658335;outline-offset:5px}
@media(max-width:760px){
 .ch-region-head,.ch-region-content{width:calc(100% - 48px)}
 .ch-region-head{padding:24px 0 22px;align-items:flex-start;gap:15px}
 .ch-region-head h2{font-size:27px;line-height:1.35;padding-top:4px}
 .ch-region-close{width:38px;height:38px;font-size:29px}
 .ch-region-content{padding-top:0;padding-bottom:48px}
 .ch-region-international{font-size:18px!important;margin-bottom:12px}
 .ch-region-group{padding:28px 0 20px}
 .ch-region-group h3{font-size:24px;margin-bottom:24px}
 .ch-region-markets{grid-template-columns:minmax(0,1fr);row-gap:6px}
 .ch-region-market{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:16px}
 .ch-region-market h4{font-size:16px;margin:0}
 .ch-region-languages{justify-content:flex-end;gap:2px 12px}
 .ch-region-option{font-size:15px;min-height:44px}
}