/* ============================================================
 * 首页二次元动漫背景（增量美化 2026-10-16）
 * 仅由 includes/header.php 在首页（index.php）引入，其它页面不加载。
 * 通过 body.anime-home 类生效：整页铺满动漫背景图 + 轻量遮罩，
 * 白色卡片与导航栏保持原主题样式，不改变任何布局与交互。
 * ============================================================ */
body.anime-home{
  background-image:linear-gradient(rgba(255,255,255,.30) 0%,rgba(255,255,255,.12) 100%),url('../img/anime-bg.jpg');
  background-color:var(--page-bg,#eef2f8);
  background-size:cover;
  background-position:center top;
  background-repeat:no-repeat;
  background-attachment:fixed;
}
/* 深色系主题：遮罩改深色，保证导航与文字可读 */
body.anime-home.theme-night,
body.anime-home.theme-neon,
body.anime-home.theme-aurora,
body.anime-home.theme-onefour,
body.anime-home.theme-abyss,
body.anime-home.theme-workspace,
body.anime-home.theme-nebula{
  background-image:linear-gradient(rgba(8,12,22,.52) 0%,rgba(8,12,22,.30) 100%),url('../img/anime-bg.jpg');
}
/* 移动端：fixed 附件在 iOS 上有兼容问题，退化为随内容滚动 */
@media (max-width:767px){
  body.anime-home{background-attachment:scroll}
}