update theme, and use 4096-bits GPG key

config/_default/params.toml

@@ -10,7 +10,7 @@ font_size = "L"
 main_menu = {align = "r", show_logo = true}
 
 email = "xry111@mengyan1223.wang"
-gnupg_key = "E1479BFE2CB3BB387F25D7B4D0101C62400F5ADF"
+gnupg_key = "12E9D32E766A57DC069D76B0D95E4716CCBB34DC"
 address = {street = "266 Xifeng Rd.", city="Xi'an", region="Shaanxi", postcode="710126", country="China", country_code="CN"}
 office_hours = ""
 phone = ""

themes/academic

@@ -1 +1 @@
-Subproject commit 249031955077a8accff77db4f6fcad45e7d86df5
+Subproject commit 301cc4841d99894c0588a9e95b9cf3a202d92212