* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, sans-serif;
}

html,body{
    min-height: 100%;
}

body {
    padding: 0 0 76px; /* 底部留出导航栏高度 */
    background: #fdf9ee;
    line-height: 1.6;
    color: #333;
}
a{text-decoration:none}
.cl{clear:both;}
.fl{float:left;}.fr{float:right;}
.tc{text-align:center;}.tl{text-align:left;}.tr{text-align:right;}
/* 添加到原有CSS中 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: #fff;
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid #eee;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.05);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #929292;
    font-size: 12px;
    padding: 8px;

}

.nav-item.active {
    background-image: -webkit-linear-gradient(left, #ff7f1b, #ff7f1b);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

.nav-item i {
    font-size: 20px;
    margin-bottom: 4px;
}