/* 
 * Noto Sans SC 本地化字体文件
 * 使用系统字体作为后备，确保离线可用
 */

/* 定义字体系列 - 使用系统字体作为后备 */
@font-face {
  font-family: 'Noto Sans SC';
  font-style: normal;
  font-weight: 300;
  src: local('Noto Sans SC Light'), 
       local('NotoSansSC-Light'),
       local('PingFang SC Light'),
       local('Microsoft YaHei Light'),
       local('微软雅黑 Light'),
       local('Helvetica Neue'),
       local('Arial');
  font-display: swap;
}

@font-face {
  font-family: 'Noto Sans SC';
  font-style: normal;
  font-weight: 400;
  src: local('Noto Sans SC Regular'), 
       local('NotoSansSC-Regular'),
       local('PingFang SC Regular'),
       local('Microsoft YaHei'),
       local('微软雅黑'),
       local('Helvetica Neue'),
       local('Arial');
  font-display: swap;
}

@font-face {
  font-family: 'Noto Sans SC';
  font-style: normal;
  font-weight: 500;
  src: local('Noto Sans SC Medium'), 
       local('NotoSansSC-Medium'),
       local('PingFang SC Medium'),
       local('Microsoft YaHei Medium'),
       local('微软雅黑 Medium'),
       local('Helvetica Neue Medium'),
       local('Arial');
  font-display: swap;
}

@font-face {
  font-family: 'Noto Sans SC';
  font-style: normal;
  font-weight: 600;
  src: local('Noto Sans SC SemiBold'), 
       local('NotoSansSC-SemiBold'),
       local('PingFang SC Semibold'),
       local('Microsoft YaHei Bold'),
       local('微软雅黑 Bold'),
       local('Helvetica Neue Bold'),
       local('Arial Bold');
  font-display: swap;
}

@font-face {
  font-family: 'Noto Sans SC';
  font-style: normal;
  font-weight: 700;
  src: local('Noto Sans SC Bold'), 
       local('NotoSansSC-Bold'),
       local('PingFang SC Bold'),
       local('Microsoft YaHei Bold'),
       local('微软雅黑 Bold'),
       local('Helvetica Neue Bold'),
       local('Arial Bold');
  font-display: swap;
}

/* 字体回退系统 */
.font-noto-sans-sc {
  font-family: 'Noto Sans SC', 
               'PingFang SC', 
               'Microsoft YaHei', 
               '微软雅黑',
               'Helvetica Neue', 
               'Arial', 
               'sans-serif';
}

/* 针对不同操作系统的优化 */
@supports (font-variation-settings: normal) {
  .font-noto-sans-sc {
    font-family: 'Noto Sans SC', 
                 'PingFang SC', 
                 'Microsoft YaHei UI', 
                 '微软雅黑',
                 system-ui, 
                 -apple-system, 
                 BlinkMacSystemFont, 
                 'Segoe UI', 
                 sans-serif;
  }
}