/* Material Icons CSS - Local Fallback */

@font-face {
  font-family: 'Material Icons';
  font-style: normal;
  font-weight: 400;
  src: local('Material Icons'),
       local('MaterialIcons-Regular');
  font-display: swap;
}

.material-icons {
  font-family: 'Material Icons';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'liga';
}

/* 如果CDN失败，使用Unicode字符作为备用 */
.material-icons.fallback {
  font-family: Arial, sans-serif;
}

/* 常用图标的Unicode备用 */
.material-icons.fallback::before {
  font-family: Arial, sans-serif;
}

/* 具体图标映射 */
.material-icons[data-icon="arrow_back"]::before { content: "←"; }
.material-icons[data-icon="menu"]::before { content: "☰"; }
.material-icons[data-icon="list"]::before { content: "≡"; }
.material-icons[data-icon="rocket_launch"]::before { content: "🚀"; }
.material-icons[data-icon="auto_awesome"]::before { content: "✨"; }
.material-icons[data-icon="psychology"]::before { content: "🧠"; }
.material-icons[data-icon="code"]::before { content: "</>"; }
.material-icons[data-icon="palette"]::before { content: "🎨"; }
.material-icons[data-icon="diamond"]::before { content: "💎"; }
.material-icons[data-icon="lightbulb"]::before { content: "💡"; }
.material-icons[data-icon="school"]::before { content: "🎓"; }
.material-icons[data-icon="speed"]::before { content: "⚡"; }
.material-icons[data-icon="brush"]::before { content: "🖌"; }
.material-icons[data-icon="color_lens"]::before { content: "🎨"; }
.material-icons[data-icon="animation"]::before { content: "🎬"; }
.material-icons[data-icon="groups"]::before { content: "👥"; }
.material-icons[data-icon="forum"]::before { content: "💬"; }
.material-icons[data-icon="science"]::before { content: "🔬"; }
.material-icons[data-icon="settings"]::before { content: "⚙"; }
.material-icons[data-icon="devices"]::before { content: "📱"; }
.material-icons[data-icon="auto_fix_high"]::before { content: "✨"; }
.material-icons[data-icon="accessibility"]::before { content: "♿"; }
.material-icons[data-icon="group_work"]::before { content: "🤝"; }
.material-icons[data-icon="description"]::before { content: "📄"; }
.material-icons[data-icon="bug_report"]::before { content: "🐛"; }
.material-icons[data-icon="favorite"]::before { content: "❤"; }
.material-icons[data-icon="play_arrow"]::before { content: "▶"; }
.material-icons[data-icon="contact_mail"]::before { content: "📧"; }
.material-icons[data-icon="keyboard_arrow_up"]::before { content: "↑"; }