封装KBFont，适配字体

keyBoard/Class/Home/V/KBTopThreeView.m

@@ -112,7 +112,7 @@
     if (!_titleLabel) {
         _titleLabel = [[UILabel alloc] init];
         _titleLabel.textColor = [UIColor colorWithWhite:0.1 alpha:1];
-        _titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold];
+        _titleLabel.font = [KBFont medium:13];
         _titleLabel.textAlignment = NSTextAlignmentCenter;
     }
     return _titleLabel;