/* QilyLean 主导航完整四边框规范 v3｜2026-08-03
 * 常态预留透明边框；悬停、键盘聚焦、当前栏目和按下状态均显示完整上下左右边线。
 */
:root{
  --qily-nav-border-hover:#c99a3e;
  --qily-nav-border-current:#ffe39b;
}

html body :is(.qily-site-header,.qily-global-header,header.topbar,header.top,header.site-header,header)
:is(.site-nav,.qily-global-nav,.nav,nav[aria-label="网站导航"]) > a[href]{
  box-sizing:border-box!important;
  border-style:solid!important;
  border-width:2px!important;
  border-top-color:transparent!important;
  border-right-color:transparent!important;
  border-bottom-color:transparent!important;
  border-left-color:transparent!important;
  background-clip:padding-box!important;
}

html body :is(.qily-site-header,.qily-global-header,header.topbar,header.top,header.site-header,header)
:is(.site-nav,.qily-global-nav,.nav,nav[aria-label="网站导航"]) > a[href]:is(
  [aria-current],
  [aria-selected="true"],
  [data-current="true"],
  [data-active="true"],
  .active,
  .current,
  .is-active,
  .selected
){
  border-top-color:var(--qily-nav-border-current)!important;
  border-right-color:var(--qily-nav-border-current)!important;
  border-bottom-color:var(--qily-nav-border-current)!important;
  border-left-color:var(--qily-nav-border-current)!important;
}

html body :is(.qily-site-header,.qily-global-header,header.topbar,header.top,header.site-header,header)
:is(.site-nav,.qily-global-nav,.nav,nav[aria-label="网站导航"]) > a[href]:not(:is(
  [aria-current],
  [aria-selected="true"],
  [data-current="true"],
  [data-active="true"],
  .active,
  .current,
  .is-active,
  .selected
)):hover,
html body :is(.qily-site-header,.qily-global-header,header.topbar,header.top,header.site-header,header)
:is(.site-nav,.qily-global-nav,.nav,nav[aria-label="网站导航"]) > a[href]:not(:is(
  [aria-current],
  [aria-selected="true"],
  [data-current="true"],
  [data-active="true"],
  .active,
  .current,
  .is-active,
  .selected
)):focus-visible{
  border-top-color:var(--qily-nav-border-hover)!important;
  border-right-color:var(--qily-nav-border-hover)!important;
  border-bottom-color:var(--qily-nav-border-hover)!important;
  border-left-color:var(--qily-nav-border-hover)!important;
}

html body :is(.qily-site-header,.qily-global-header,header.topbar,header.top,header.site-header,header)
:is(.site-nav,.qily-global-nav,.nav,nav[aria-label="网站导航"]) > a[href]:is(
  [aria-current],
  [aria-selected="true"],
  [data-current="true"],
  [data-active="true"],
  .active,
  .current,
  .is-active,
  .selected
):hover,
html body :is(.qily-site-header,.qily-global-header,header.topbar,header.top,header.site-header,header)
:is(.site-nav,.qily-global-nav,.nav,nav[aria-label="网站导航"]) > a[href]:is(
  [aria-current],
  [aria-selected="true"],
  [data-current="true"],
  [data-active="true"],
  .active,
  .current,
  .is-active,
  .selected
):focus-visible,
html body :is(.qily-site-header,.qily-global-header,header.topbar,header.top,header.site-header,header)
:is(.site-nav,.qily-global-nav,.nav,nav[aria-label="网站导航"]) > a[href]:active{
  border-top-color:var(--qily-nav-border-current)!important;
  border-right-color:var(--qily-nav-border-current)!important;
  border-bottom-color:var(--qily-nav-border-current)!important;
  border-left-color:var(--qily-nav-border-current)!important;
}