/**
 * 本地字体样式表 - 纯系统字体
 * 不使用任何CDN，确保在国内网络环境下正常显示
 */
@font-face { font-family: 'Noto Sans SC'; font-weight: 300; src: local('Noto Sans SC'), local('Microsoft YaHei'), local('PingFang SC'); }
@font-face { font-family: 'Noto Sans SC'; font-weight: 400; src: local('Noto Sans SC'), local('Microsoft YaHei'), local('PingFang SC'); }
@font-face { font-family: 'Noto Sans SC'; font-weight: 500; src: local('Microsoft YaHei'), local('PingFang SC'); }
@font-face { font-family: 'Noto Sans SC'; font-weight: 700; src: local('Microsoft YaHei'), local('PingFang SC'); }
@font-face { font-family: 'Noto Serif SC'; font-weight: 400; src: local('Noto Serif SC'), local('Songti SC'), local('SimSun'), local('serif'); }
@font-face { font-family: 'Noto Serif SC'; font-weight: 600; src: local('Noto Serif SC'), local('Songti SC'), local('SimSun'), local('serif'); }
@font-face { font-family: 'Noto Serif SC'; font-weight: 700; src: local('Noto Serif SC'), local('Songti SC'), local('SimSun'), local('serif'); }
@font-face { font-family: 'Orbitron'; font-weight: 400; src: local('Arial'), local('sans-serif'); }
@font-face { font-family: 'Orbitron'; font-weight: 700; src: local('Arial'), local('sans-serif'); }
@font-face { font-family: 'Orbitron'; font-weight: 900; src: local('Arial'), local('sans-serif'); }
@font-face { font-family: 'Share Tech Mono'; src: local('Courier New'), local('monospace'); }
@font-face { font-family: 'Nunito'; font-weight: 400; src: local('Arial'), local('sans-serif'); }
@font-face { font-family: 'Nunito'; font-weight: 600; src: local('Arial'), local('sans-serif'); }
@font-face { font-family: 'Nunito'; font-weight: 700; src: local('Arial Bold'), local('Arial'), local('sans-serif'); }
@font-face { font-family: 'Nunito'; font-weight: 800; src: local('Arial'), local('sans-serif'); }