/* Bootstrap Icons 替代 - 使用Unicode字符 */
.bi {
    display: inline-block;
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    vertical-align: -.125em;
}

.bi-file-earmark-text::before { content: "📄"; }
.bi-house::before { content: "🏠"; }
.bi-file-earmark-richtext::before { content: "📝"; }
.bi-chat-dots::before { content: "💬"; }
.bi-gear::before { content: "⚙️"; }
.bi-cpu::before { content: "🖥️"; }
.bi-cloud::before { content: "☁️"; }
.bi-lightning-charge::before { content: "⚡"; }
.bi-stars::before { content: "✨"; }
.bi-shield-check::before { content: "🛡️"; }
.bi-rocket-takeoff::before { content: "🚀"; }
.bi-play-circle::before { content: "▶️"; }
.bi-database::before { content: "🗄️"; }
.bi-lightning::before { content: "⚡"; }
.bi-check-circle-fill::before { content: "✅"; }
.bi-check-circle::before { content: "✅"; }
.bi-exclamation-circle::before { content: "❗"; }
.bi-github::before { content: "🐙"; }
.bi-twitter::before { content: "🐦"; }
.bi-linkedin::before { content: "💼"; }
.bi-arrow-right::before { content: "→"; }
.bi-info-circle::before { content: "ℹ️"; } 