/* Font Awesome 简化版 - 使用 emoji 替代 */
.fa, .fas, .far, .fal, .fab {
    font-family: inherit;
}
.fa-broadcast-tower:before { content: "📡"; }
.fa-play:before { content: "▶"; }
.fa-video-slash:before { content: "📵"; }
.fa-camera:before { content: "📷"; }
.fa-microphone:before { content: "🎤"; }
.fa-sync:before { content: "🔄"; }
.fa-stop:before { content: "⏹"; }
.fa-arrow-left:before { content: "←"; }
.fa-user:before { content: "👤"; }
.fa-envelope:before { content: "✉"; }