.baosidun-head {
    position: fixed;
    top: 0;
    width: 100%;
    height: 6.25rem;
    z-index: 99;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.00) 100%);
}

@media screen and (min-width: 1860px) {
    .baosidun-head .container {
        max-width: 1800px;
    }
}

.baosidun-head.active {
    background: #FFF;
    animation: slide-down 0.7s;
}

@keyframes slide-down {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(0);
    }
}

.baosidun-head .baosidun-nav {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.baosidun-head .baosidun-logo img {
    width: 14rem;
    aspect-ratio: 80/13;
    object-fit: contain;
}

.baosidun-head.active .firstlogo,
.baosidun-head .sitepclogo{
    display: none;
}

.baosidun-head .firstlogo,
.baosidun-head.active .sitepclogo{
    display: block;
}

.baosidun-head .baosidun-center {
    display: flex;
    align-items: center;
    gap: 6.25rem;
}

.baosidun-head .baosidun-menu {
    display: flex;
    align-items: center;
    gap: 3.75rem;
    transition: all 0.5s;
}

.baosidun-menu .menu-item-wrap {
    position: relative;
}

.baosidun-menu .menu-item {
    color: #FFF;
    font-family: var(--font-family);
    font-size: var(--font-20);
    font-style: normal;
    font-weight: 500;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
    line-height: 1.35;
    padding: 16px 0;
    display: inline-block;
    border-bottom: 3px solid transparent;
    border-top: 3px solid transparent;
    transition: all 0.3s ease;
}

.baosidun-menu .menu-item-wrap.active .menu-item,
.baosidun-menu .menu-item-wrap:hover .menu-item {
    border-bottom: 3px solid var(--color-primary);
}

.baosidun-head.active .menu-item {
    text-shadow: none;
    color: var(--title-text-color);
}

.baosidun-head.active .menu-item-wrap.active .menu-item,
.baosidun-head.active .menu-item-wrap:hover .menu-item {
    color: var(--color-primary);
}

.baosidun-head.active .menu-item .nav-icon svg path {
    fill: var(--title-text-color);
}

.baosidun-head.active .menu-item-wrap.active .menu-item .nav-icon svg path,
.baosidun-head.active .menu-item-wrap:hover .menu-item .nav-icon svg path {
    fill: var(--color-primary);
}

.baosidun-sub-wrap {
    width: fit-content;
    max-width: 90vw;
    position: absolute;
    left: 0;
    top: 100%;
    margin-top: 6px;
    background: #FFF;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: stretch;
    transition: all 0.3s;
    transform: translateY(20px);
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
}

.baosidun-menu .menu-item-wrap:hover .baosidun-sub-wrap {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.baosidun-sub-wrap .baosidun-sub-nav-list {
    min-width: 0;
    width: max-content;
    max-width: none;
    flex-shrink: 0;
    background: #F5F5F5;
    padding: 24px 30px 18px 20px;
    box-sizing: border-box;
}

.baosidun-sub-wrap .baosidun-sub-nav-item {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 0 24px;
    margin-bottom: 24px;
    border-bottom: 1px solid #ddd;
}

.baosidun-sub-wrap .baosidun-sub-nav-item:last-child {
    margin-bottom: 0;
}

.baosidun-sub-wrap .baosidun-sub-nav-item.active .baosidun-sub-title,
.baosidun-sub-wrap .baosidun-sub-nav-item:hover .baosidun-sub-title {
    color: var(--color-primary);
}

.baosidun-sub-wrap .baosidun-sub-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    width: 100%;
    color: var(--title-text-color);
    font-family: var(--font-family);
    font-size: var(--font-18);
    font-weight: 500;
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-transform: capitalize;
}

.baosidun-sub-wrap .baosidun-sub-title svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.baosidun-sub-wrap .baosidun-sub-nav-item.active .baosidun-sub-title svg,
.baosidun-sub-wrap .baosidun-sub-nav-item:hover .baosidun-sub-title svg {
    opacity: 1;
    visibility: visible;
}

.baosidun-sub-wrap .baosidun-sub-content {
    flex: none;
    width: max-content;
    min-width: 0;
    padding: 20px 30px;
    box-sizing: border-box;
}

.baosidun-sub-wrap .baosidun-three-wrap {
    display: none;
    flex-direction: column;
    gap: 20px;
}

.baosidun-sub-wrap .baosidun-three-wrap.active {
    display: flex;
}

.baosidun-sub-wrap .baosidun-three-item {
    width: 100%;
    color: var(--title-text-color-text-color);
    font-family: var(--font-family);
    font-size: var(--font-18);
    font-weight: 400;
    line-height: 200%;
    white-space: nowrap;
}

.baosidun-sub-wrap .baosidun-three-item-text {
    color: inherit;
}

.baosidun-sub-wrap .baosidun-three-item-text:hover {
    color: var(--color-primary);
}

.baosidun-sub-wrap.no-right-content .baosidun-sub-content {
    display: none;
}

.baosidun-right {
    display: flex;
    align-items: center;
}

.baosidun-right .baosidun-lang,
.baosidun-right .baosidun-search {
    color: #FFF;
    position: relative;
}

.baosidun-head.active .baosidun-lang,
.baosidun-head.active .baosidun-search {
    color: var(--title-text-color);
}

.baosidun-right .baosidun-lang svg {
    position: absolute;
    left: 20%;
    top: 50%;
    transform: translateY(-50%);
}

.baosidun-head.active .baosidun-lang svg path {
    stroke: var(--title-text-color);
}

.baosidun-right .baosidun-lang .lang-selector .current-lang em {
    font-size: 18px;
}

.baosidun-right .baosidun-lang .lang-selector .current-lang img {
    opacity: 0;
}

.baosidun-right .baosidun-search {
    margin-left: 57px;
}

.baosidun-right .baosidun-search .em-header-quearys .em-quearys-menu i {
    line-height: 28px;
}

.baosidun-hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
    transition: all 0.5s;
}

.baosidun-hamburger span {
    display: block;
    height: 3px;
    background: #FFF;
    border-radius: 2px;
}

.baosidun-head.active .baosidun-hamburger span {
    background: var(--title-text-color);
}

@media screen and (max-width: 1500px) {
    .baosidun-right .baosidun-search {
        margin-left: 10px;
    }

    .baosidun-head .baosidun-center {
        gap: 20px;
    }

    .baosidun-head .baosidun-menu {
        gap: 30px;
    }
}

@media screen and (max-width: 1200px) {
    .baosidun-head .baosidun-menu {
        display: none;
    }

    .baosidun-hamburger {
        display: flex;
    }
}

.baosidun-mobile-menu {
    position: fixed;
    width: 100%;
    height: 100%;
    background: #FFF;
    top: 0;
    left: 0;
    z-index: 999;
    padding: 30px;
    transition: all 0.5s ease;
    transform: translateX(-100%);
    opacity: 0;
    visibility: hidden;
}

.baosidun-mobile-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.baosidun-mobile-menu .mobile-top {
    width: 100%;
    position: relative;
}

.mobile-top .mobile-logo {
    width: 50%;
    aspect-ratio: 53/15;
    object-fit: cover;
}

.mobile-top .close-hamburger {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    cursor: pointer;
}

.mobile-top .close-hamburger .bar {
    position: absolute;
    top: 16px;
    display: block;
    width: 100%;
    height: 3px;
    background: #000;
    border-radius: 2px;
    transform: rotate(-45deg);
}

.mobile-top .close-hamburger .bar:first-child {
    transform: rotate(45deg);
}

.mobile-nav {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mobile-nav .mobile-nav-wrap {
    position: relative;
}

.mobile-nav .mobile-nav-wrap a {
    font-size: 18px;
    display: block;
    width: 100%;
    border-bottom: 1px solid #ccc;
}

.mobile-nav .mobile-nav-wrap .mobile-nav-item {
    padding: 10px 0 10px 10px;
}

.mobile-nav .mobile-nav-wrap .ico {
    width: 10%;
    text-align: center;
    height: 45px;
    position: absolute;
    right: 0;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-subNav .mobile-subNav-item {
    padding: 10px 0 10px 20px;
}

.mobile-subNav-wrap {
    position: relative;
}

.mobile-threeNav .mobile-threeNav-item {
    padding: 10px 0 10px 30px;
}

@media screen and (max-width: 768px) {
    .baosidun-head .baosidun-logo img {
        width: 11rem;
    }
}