.header .head_top .logo .site-brand { display:block; color:#fff; font:700 clamp(18px,2vw,26px)/50px SimSun,STSong,serif; letter-spacing:1px; white-space:nowrap; text-decoration:none; }
.m_header .m_head_content .m_head_logo .site-brand { display:block; color:#fff; font:700 18px/60px SimSun,STSong,serif; white-space:nowrap; text-decoration:none; }