.header{width:100%;height:45px;box-shadow:0 2px 1px 3px #eee}.head-main{max-width:1140px;height:100%;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 10px;box-sizing:border-box}.head-left{font-size:16px;font-weight:700;cursor:pointer;transition:.4s all}.head-left:hover{opacity:.8}.head-right a{margin-right:8px;transition:.4s all}.head-right a:hover{color:#1890ff}