/* Bootstrap Icons - 本地化版本 */
/* 注意：如果字体文件无法加载，图标将显示为文本符号 */

@font-face {
  font-family: "bootstrap-icons";
  src: url("fonts/bootstrap-icons.woff2") format("woff2"),
       url("fonts/bootstrap-icons.woff") format("woff");
  font-display: swap; /* 提供更好的加载体验 */
}

/* 基础图标样式 - 优化了备用字体 */
.bi::before,
[class^="bi-"]::before,
[class*=" bi-"]::before {
  display: inline-block;
  font-family: bootstrap-icons, "Segoe UI Symbol", "Segoe UI Emoji", "Apple Color Emoji", "Twemoji Mozilla", "Noto Color Emoji", sans-serif !important;
  font-style: normal;
  font-weight: normal !important;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  vertical-align: -.125em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 核心图标定义 */
.bi-file-earmark-text::before { content: "\f22c"; }
.bi-house::before { content: "\f425"; }
.bi-file-earmark-richtext::before { content: "\f226"; }
.bi-chat-dots::before { content: "\f0f4"; }
.bi-gear::before { content: "\f3e5"; }
.bi-cpu::before { content: "\f166"; }
.bi-cloud::before { content: "\f12b"; }
.bi-lightning-charge::before { content: "\f45a"; }
.bi-stars::before { content: "\f5c5"; }
.bi-shield-check::before { content: "\f565"; }
.bi-rocket-takeoff::before { content: "\f51f"; }
.bi-play-circle::before { content: "\f4c4"; }
.bi-database::before { content: "\f176"; }
.bi-lightning::before { content: "\f457"; }
.bi-check-circle-fill::before { content: "\f0ea"; }
.bi-check-circle::before { content: "\f0e9"; }
.bi-exclamation-circle::before { content: "\f33a"; }
.bi-github::before { content: "\f3ed"; }
.bi-twitter::before { content: "\f5ef"; }
.bi-linkedin::before { content: "\f472"; }
.bi-arrow-right::before { content: "\f138"; }
.bi-info-circle::before { content: "\f431"; }

/* 添加更多常用图标 */
.bi-pencil-square::before { content: "\f4cb"; }
.bi-magic::before { content: "\f479"; }
.bi-clipboard::before { content: "\f10b"; }
.bi-download::before { content: "\f1c1"; }
.bi-arrow-repeat::before { content: "\f13c"; }
.bi-arrow-clockwise::before { content: "\f134"; }
.bi-send::before { content: "\f54c"; }
.bi-robot::before { content: "\f51e"; }
.bi-person::before { content: "\f4da"; }
.bi-book::before { content: "\f0c6"; }
.bi-plus-circle::before { content: "\f4e2"; }
.bi-trash::before { content: "\f5de"; }
.bi-pencil::before { content: "\f4ca"; }
.bi-search::before { content: "\f52a"; }
.bi-bell::before { content: "\f09f"; }
.bi-question-circle::before { content: "\f504"; }

/* 字体文件未正确加载时的Unicode备用方案 */
.bi-file-earmark-text::after { content: "📄"; display: none; }
.bi-house::after { content: "🏠"; display: none; }
.bi-file-earmark-richtext::after { content: "📝"; display: none; }
.bi-chat-dots::after { content: "💬"; display: none; }
.bi-gear::after { content: "⚙️"; display: none; }
.bi-cpu::after { content: "🖥️"; display: none; }
.bi-cloud::after { content: "☁️"; display: none; }
.bi-database::after { content: "🗄️"; display: none; }
.bi-lightning::after { content: "⚡"; display: none; }
.bi-check-circle::after { content: "✅"; display: none; }
.bi-exclamation-circle::after { content: "⚠️"; display: none; }
.bi-arrow-right::after { content: "→"; display: none; }
.bi-info-circle::after { content: "ℹ️"; display: none; }
.bi-search::after { content: "🔍"; display: none; }
.bi-plus-circle::after { content: "➕"; display: none; }
.bi-pencil::after { content: "✏️"; display: none; }
.bi-trash::after { content: "🗑️"; display: none; }
.bi-download::after { content: "⬇️"; display: none; }
.bi-send::after { content: "📤"; display: none; }
.bi-person::after { content: "👤"; display: none; }
.bi-book::after { content: "📚"; display: none; }

/* 检测字体是否加载成功，如果失败则显示备用符号 */
@supports not (font-family: bootstrap-icons) {
  .bi::before,
  [class^="bi-"]::before,
  [class*=" bi-"]::before {
    display: none;
  }
  
  .bi::after,
  [class^="bi-"]::after,
  [class*=" bi-"]::after {
    display: inline-block !important;
  }
}

/* 为无法显示Unicode的情况提供文本备用 */
.bi-file-earmark-text[title=""]::before { content: "[文档]"; }
.bi-house[title=""]::before { content: "[首页]"; }
.bi-gear[title=""]::before { content: "[设置]"; }
.bi-search[title=""]::before { content: "[搜索]"; }