.f12 {font-size: 0.75rem;}
.f14 {font-size: 0.875rem;}
.f18 {font-size: 1.125rem;}
.f20 {font-size: 1.25rem;}
.f34 {font-size: 2.125rem;}

.app-pt-30{padding-top: 1.875rem;}
.app-pb-10 {padding-bottom: 0.625rem;}

.app-mt-30{margin-top: 1.875rem;}
.app-mb-30{margin-bottom: 1.875rem;}
.app-my-30{margin-top: 1.875rem; margin-bottom: 1.875rem;}
.app-mt-90{margin-top: 5.625rem;}
.app-mt-100{margin-top: 6.25rem}

.c999{color:#999;}
.c666{color:#666;}
.c888{color:#888;}
.c333{color: #333;}
.cpin{color:#FF1371;}
.cfff{color: #fff;}

.bgff,.bgfff{background-color: #fff;}

.f-pdf{color:#fd1e1e;}
.f-epub,.f-office{color:#0079cd;}
.f-doc,.f-docx,.f-rtf{color: #05c0f5;}
.f-xls,.f-xlsx,.f-csv{color:#6dd46a;}
.f-vcard,.f-png,.f-image,.f-ppt,.f-pptx{color:#ff6e25;}
.f-archive,.f-font{color:#964fbf;}
.f-book{color:#888;}
.f-tool{color: #137cff;}
.f-txt{color:#333;}
.f-jpg{color:darkgreen;}
.f-gif{color:#fd1e1e;}
.f-webp{color:#30922c}

.bbe5d{
    border-bottom: 1px dotted #e5e5e5;
}
.bbe5{
    border-bottom: 1px solid #e5e5e5;
}

.br-5{border-radius: 5px;}

.app-lh-15{
    line-height: 1.5;
}
.app-lh-16{
    line-height: 1.6;
}
.app-lh-17{
    line-height: 1.7;
}
.hide{
    visibility: hidden;
}