@font-face {
  font-family: 'FontAwesome';
  src: url('data:application/font-woff2;charset=utf-8;base64,') format('woff2');
  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;
}

/* 使用Unicode字符替代字体图标 */
.fa-graduation-cap:before { content: "🎓"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-user-circle:before { content: "👤"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-exclamation-circle:before { content: "⚠️"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-id-card:before { content: "🆔"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-lock:before { content: "🔒"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-arrow-right:before { content: "→"; font-family: sans-serif; }
.fa-trophy:before { content: "🏆"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-bar-chart:before { content: "📊"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-edit:before { content: "✏️"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-trash:before { content: "🗑️"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-save:before { content: "💾"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-times:before { content: "✖"; font-family: sans-serif; }
.fa-plus:before { content: "➕"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-user-plus:before { content: "👤+"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-users:before { content: "👥"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-check-circle:before { content: "✅"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-upload:before { content: "⬆️"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-download:before { content: "⬇️"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-arrow-left:before { content: "←"; font-family: sans-serif; }
.fa-file-upload:before { content: "📤"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-info-circle:before { content: "ℹ️"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }
.fa-list-alt:before { content: "📋"; font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif; }

/* 备用方案：使用简单的文字符号 */
@supports not (font-family: "Apple Color Emoji") {
  .fa-graduation-cap:before { content: "🎓"; }
  .fa-user-circle:before { content: "●"; }
  .fa-exclamation-circle:before { content: "!"; }
  .fa-id-card:before { content: "ID"; font-size: 0.8em; }
  .fa-lock:before { content: "🔒"; }
  .fa-arrow-right:before { content: "→"; }
  .fa-trophy:before { content: "★"; }
  .fa-bar-chart:before { content: "📊"; }
}

/* 确保图标正确显示 */
.fa:before {
  font-size: 1em;
  line-height: 1;
}