.bst-pro-wrap {
  max-width: 700px;
  padding: 20px;
  border: 1px solid #eee;
  border-radius: 12px;
  background: #fff;
}
#bst-pro-file {
  padding: 10px;
  width: 100%;
  border: 1px dashed #ccc;
  border-radius: 10px;
}
#bst-pro-submit {
  margin-top: 10px;
  padding: 10px 16px;
  border: 0;
  background: #3b5bfd;
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
}
#bst-pro-submit:hover {
  opacity: 0.9;
}
#bst-pro-msg { padding:10px; border-radius:8px; margin-top:12px; }
.bst-info { background:#f3f6ff; color:#1a2b6d; }
.bst-ok { background:#e9fff0; color:#0a5a25; }
.bst-err { background:#ffecec; color:#7a0b0b; }