/* 头部样式 */
.header {
    position: relative;
    width: 100%;
    color: #FFFFFF;
    position: relative;
    z-index: 100;
    transition: all 0.3s ease;
}

.header-linear {
    background: linear-gradient(180deg, #000000 -30%, rgba(0,0,0,0.01) 100%) no-repeat;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 139px;
    z-index: -1;
}

.header-container {
    display: flex;
    padding-top: 20px;
    padding-bottom: 20px;
    align-items: center;
    justify-content: space-between;
}
.header-hover {
    width: 100%;
    height: 70px;
    background-color: transparent; 
    transition: background 0.3s ease;
}
.header-hover:hover {
    background-color: #000;
}
.header.notTop {
    background-color: #000;
}
.header.mask {
    background-color: #000;
}
.header.fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.logo img {
    width: 116px;
    height: 24px;
}

/* 导航菜单样式 */
.nav-menu {
    display: flex;
    list-style: none;
    padding: 0;
    font-family: 'PingFang_Bold';
    font-weight: bold;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 1;
}

.nav-menu li {
    margin-left: 71px;
}

.nav-menu li:first-child {
    margin-left: 0;
}

.nav-menu a {
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
    font-family: 'PingFang_Bold';
    font-weight: bold;
    font-size: 14px;
    color: white;
}

.nav-menu a:hover {
    color: #FB6E2A;
}

/* .nav-menu li:first-child a {
    color: #FB6E2A;
} */

/* .nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #FB6E2A;
    transition: width 0.3s ease;
} */

/* .nav-menu a:hover::after {
    width: 100%;
} */

/* 按钮样式 */
.btn {
    width: 80px;
    height: 30px;
    background: #FB6E2A;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'PingFang_Bold';
    font-weight: bold;
    font-size: 14px;
    color: #FFFFFF;
    /* transition: background-color 0.3s ease; */
}
.hidden {
    background:transparent
}
.nav-active {
    color: #FB6E2A !important;
}