[opt] gradient

_config.yml

@@ -357,7 +357,7 @@ style:
     loading: 正在加载
     error: 加载失败，请稍后重试。
   gradient: # https://webgradients.com/
-    start: 'linear-gradient(to right, #92fe9d 0%, #00c9ff 50%, #92fe9d 100%)'
+    start: 'linear-gradient(to right, hsl(215, 95%, 64%), hsl(195, 95%, 60%), hsl(165, 95%, 56%), hsl(165, 95%, 56%), hsl(195 95% 60%), hsl(215, 95%, 64%))'
     search: 'linear-gradient(to right, #04F3FF, #08FFC6, #DDF730, #FFBD19, #FF1FE0, #C418FF, #04F3FF)'
 
 default:

source/css/_common/button.styl

@@ -32,6 +32,7 @@ a.button.start.gradient
   background: convert(hexo-config('style.gradient.start'))
   background-size: 1000%
   color: white
+  text-shadow: 0 0 1px rgba(0,0,0,0.12)
   animation: glow 60s linear infinite
   @keyframes glow {
     from {