@font-face {
  font-family: 'FontAwesome';
  src: url('../fonts/fontawesome-webfont.woff2?v=4.7.0') format('woff2'),
       url('../fonts/fontawesome-webfont.woff?v=4.7.0') format('woff'),
       url('../fonts/fontawesome-webfont.ttf?v=4.7.0') format('truetype');
  font-weight: normal;
  font-style: normal;
}

.fa {
  display: inline-block;
  font: normal normal normal 14px/1 FontAwesome;
  font-size: inherit;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 图标定义保持不变 */
.fa-train:before { content: "\f238" }
.fa-book:before { content: "\f02d" }
.fa-sliders:before { content: "\f1de" }
.fa-envelope:before { content: "\f0e0" }
.fa-file-archive-o:before { content: "\f1c6" }
.fa-magic:before { content: "\f0d0" }
.fa-cloud-upload:before { content: "\f0ee" }
.fa-cogs:before { content: "\f085" }
.fa-download:before { content: "\f019" }
.fa-table:before { content: "\f0ce" }
.fa-code:before { content: "\f121" }
.fa-trash:before { content: "\f1f8" }
.fa-info-circle:before { content: "\f05a" }
.fa-check-circle:before { content: "\f058" }
.fa-exclamation-triangle:before { content: "\f071" }
.fa-exclamation-circle:before { content: "\f06a" }
.fa-bug:before { content: "\f188" }
.fa-times:before { content: "\f00d" }
.fa-lightbulb-o:before { content: "\f0eb" }
.fa-envelope-o:before { content: "\f003" }