blog/assets/sass/_partial/_footer/_copyright.scss

// ==============================
// Copyright
// =============================

.copyright {
  margin: $copyright-margin;
  color: $dark-gray;
  text-align: center;
  font-family: $global-serif-font-family;

  a:hover {
    color: $theme-color;
  }

  .hexo-link,
  .theme-link {
    color: $theme-color;
  }

  .copyright-year {
    display: block;

    .heart {
      font-size: 14px;
      margin: 4px;
    }
  }
}