// 设计字重直接读取配置映射，不递归映射目标值。
$fw-100 = hexo-config('appearance.typography.font_weight.100')
$fw-200 = hexo-config('appearance.typography.font_weight.200')
$fw-300 = hexo-config('appearance.typography.font_weight.300')
$fw-400 = hexo-config('appearance.typography.font_weight.400')
$fw-500 = hexo-config('appearance.typography.font_weight.500')
$fw-600 = hexo-config('appearance.typography.font_weight.600')
$fw-700 = hexo-config('appearance.typography.font_weight.700')
$fw-800 = hexo-config('appearance.typography.font_weight.800')
$fw-900 = hexo-config('appearance.typography.font_weight.900')