/* 从线上官网 site.css 的导航规则原样复用，仅补充 Bot/活动页的菜单打开类。 */
.site-header{position:sticky;top:0;z-index:50;width:100%;height:auto;background:#fff;border-bottom:1px solid #f0f0f1;backdrop-filter:none;-webkit-backdrop-filter:none}
.site-header .header-inner{width:calc(100% - 72px);max-width:1376px;margin:auto;height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-header .site-brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-weight:600;font-size:21px;line-height:1.3}
.site-header .site-brand .nav-logo{width:33px;height:39px;object-fit:contain}
.site-header .brand-caption{font-size:10px;font-weight:400;color:#626772;display:block;margin-top:3px;letter-spacing:0}
.site-header .site-nav{display:flex;gap:29px;align-items:center}
.site-header .site-nav>a,.site-header .site-nav>details>summary{position:relative;display:flex;align-items:center;gap:4px;padding:0;border:0;border-radius:0;background:none;color:#25262a;font-size:14px;font-weight:500;line-height:normal;min-height:48px;white-space:nowrap;cursor:pointer;list-style:none}
.site-header .site-nav>a:hover,.site-header .site-nav>details>summary:hover{background:none;color:#25262a}
.site-header .site-nav>a[aria-current]:after{content:"";position:absolute;left:0;right:0;height:2px;bottom:4px;background:#16a34a}
.site-header .site-nav summary::-webkit-details-marker{display:none}
.site-header .site-nav summary svg{width:14px;height:14px;transition:transform .25s}
.site-header .site-nav details[open] summary svg{transform:rotate(180deg)}
.site-header .nav-dropdown{position:relative}
.site-header .nav-dropdown-panel{position:absolute;top:calc(100% + 8px);left:-24px;background:#fff;border-radius:14px;box-shadow:0 12px 48px -16px #1f282d40;padding:12px;min-width:230px;display:grid;gap:2px}
.site-header .nav-dropdown-panel a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 12px;border-radius:9px;white-space:nowrap}
.site-header .nav-dropdown-panel a:hover{background:#f6f7f6}
.site-header .nav-dropdown-panel a>svg:last-child{width:15px;height:15px;color:#626772}
.site-header .header-actions{display:flex;align-items:center;gap:14px}
.site-header .button.small{display:inline-flex;align-items:center;justify-content:center;gap:11px;min-height:40px;padding:10px 24px;border-radius:999px;background:#25262a;color:#fff;font-size:13px;font-weight:500;border:0;line-height:1.45;white-space:nowrap}
.site-header .site-menu-toggle{display:none;border:0;background:none;width:44px;height:44px;color:#25262a}

@media(max-width:1150px){
  .site-header .header-inner{width:calc(100% - 40px);gap:16px}
  .site-header .site-nav{gap:18px}
  .site-header .site-brand{font-size:19px}
}

@media(max-width:960px){
  .site-header .site-nav{gap:14px}
  .site-header .site-nav>a,.site-header .site-nav>details>summary{font-size:12px}
  .site-header .site-brand .brand-caption{display:none}
  .site-header .header-actions .button{padding-inline:19px}
}

@media(max-width:760px){
  .site-header .header-inner{height:68px;width:calc(100% - 32px)}
  .site-header .site-brand{font-size:20px}
  .site-header .site-brand .nav-logo{width:28px;height:34px}
  .site-header .site-brand .brand-caption{display:block;font-size:9px}
  .site-header .header-actions{gap:8px}
  .site-header .header-actions .button{font-size:12px;min-height:37px;padding:9px 17px}
  .site-header .site-menu-toggle{display:flex;align-items:center;justify-content:center}
  .site-header .site-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;max-height:calc(100dvh - 90px);overflow:auto;overscroll-behavior:contain;padding:16px 24px 25px;box-shadow:0 18px 22px -22px #213d3450}
  .site-header .site-nav.is-open,.site-header .site-nav.open,.site-header .site-nav.mobile-open{display:flex;flex-direction:column;align-items:stretch;gap:0}
  .site-header .site-nav>a,.site-header .site-nav>details>summary{font-size:15px;min-height:49px;border-bottom:1px solid #f0f0f0;justify-content:space-between}
  .site-header .site-nav>a[aria-current]:after{display:none}
  .site-header .site-nav>a[aria-current]{color:#16723c}
  .site-header .nav-dropdown-panel{position:static;box-shadow:none;background:#f7f8f7;border-radius:10px;min-width:0;margin-bottom:8px;padding:7px}
  .site-header .nav-dropdown-panel a{white-space:normal;min-height:48px;font-size:13px;gap:10px}
}

@media(max-width:360px){
  .site-header .site-brand .brand-caption{display:none}
}