@charset "gb2312";
/* 顶部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    color: #fff;
    transition: background-color 0.4s ease, padding 0.4s ease;
}

.header.scrolled {
    background-color: rgba(0, 0, 0, 0.7);
}

.nav-container {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 50px 60px 14px;
    transition: padding 0.4s ease;
}

.header.scrolled .nav-container {
    padding-top: 14px;
}

.nav-left {
    flex-shrink: 0;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-mobile {
    display: none;
}

.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 36px;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    color: #fff;
    font-size: 22px;
    padding: 8px 0;
    transition: opacity 0.3s;
    display: inline-block;
}

.nav-menu > li > a:hover {
    opacity: 0.8;
}

/* 子菜单 */
.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    list-style: none;
    background-color: #fff;
    min-width: 180px;
    padding: 12px 0;
    border-radius: 4px;
    white-space: nowrap;
}

.nav-menu > li:hover .submenu {
    display: block;
}

.submenu li a {
    display: block;
    color: #333;
    font-size: 18px;
    padding: 10px 24px;
    text-align: center;
    transition: background-color 0.3s;
}

.submenu li a:hover {
    background-color: #f5f5f5;
}

.nav-right {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-contact {
    display: inline-block;
    background-color: #000;
    color: #fff;
    padding: 10px 28px;
    font-size: 14px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.btn-contact:hover {
    background-color: #333;
}

.btn-search {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.btn-search img {
    width: 22px;
    height: 22px;
}

/* 汉堡菜单按钮 - 默认隐藏 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    background: none;
    border: none;
    padding: 4px;
}

.hamburger span {
    width: 26px;
    height: 3px;
    background-color: #fff;
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* 侧边导航抽屉 */
.side-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 100%;
    background-color: #fff;
    z-index: 2000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
	background-image: url("../img/logo-b.png");
	background-repeat: no-repeat;
	background-position: 20px 15px;
	background-size: 200px;
}

.side-drawer.open {
    transform: translateX(0);
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.drawer-overlay.open {
    opacity: 1;
    visibility: visible;
}

.drawer-close {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 16px 20px;
    border-bottom: 1px solid #eee;
}

.drawer-close-btn {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: #333;
    line-height: 1;
    padding: 4px;
}

.drawer-close-btn:hover {
    color: #000;
}

.drawer-menu {
    list-style: none;
    padding: 0;
}

.drawer-menu li a {
    display: block;
    padding: 14px 24px;
    color: #000;
    font-size: 16px;
    border-bottom: 1px solid #f0f0f0;
    transition: background-color 0.3s;
}

.drawer-menu li a:hover {
    background-color: #f5f5f5;
}

.drawer-search {
    padding: 20px 24px;
    border-bottom: 1px solid #f0f0f0;
}

.drawer-search-title {
    font-size: 16px;
	font-weight: bold;
    color: #000;
    margin-bottom: 10px;
}

.drawer-search-form {
    display: flex;
}

.drawer-search-input {
    flex: 1;
    border: 1px solid #ddd;
    border-right: none;
    padding: 8px 12px;
    font-size: 14px;
    outline: none;
    border-radius: 4px 0 0 4px;
}

.drawer-search-input:focus {
    border-color: #999;
}

.drawer-search-submit {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    border-radius: 0 4px 4px 0;
}

.drawer-search-submit:hover {
    background-color: #555;
}

.drawer-share {
    padding: 20px 24px;
    border-bottom: 1px solid #f0f0f0;
}

.drawer-share-title {
    font-size: 14px;
    color: #999;
    margin-bottom: 12px;
}

.drawer-share-icons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.drawer-share-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: #f0f0f0;
    color: #555;
    font-size: 14px;
    font-weight: bold;
    transition: background-color 0.3s, color 0.3s;
}

.drawer-share-icons a:hover {
    background-color: #333;
    color: #fff;
}
/*---------------------------------------------------------*/
.page-footer {
	width: 100%;
	max-width: 1920px;
	margin: auto;
	background-image: url("../img/footer-bg.jpg");
	background-repeat: no-repeat;
	background-position: center bottom;
	background-size: cover;
}
.page-footer-logo {
	width: 100%;
	padding: 50px 0;
	text-align: center;
}
.page-footer-holder {
	padding: 0 5%;
	display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}
.page-footer-list h2, .page-footer-contact h2 {
	font-size: 18px;
	color: #FFF;
	background-image: url("../img/line.jpg");
	background-repeat: no-repeat;
	background-position: left bottom;
	padding-bottom: 10px;
	margin-bottom: 20px;
}
.page-footer-list a {
	display: block;
	font-size: 18px;
	color: #999;
	margin-bottom: 20px;
	transition: color 0.2s;
}
.page-footer-list a:hover {
    color: #666;
}
.page-footer-contact p {
	line-height: 24px;
	font-size: 18px;
	color: #999;
	margin-bottom: 20px;
	padding-left: 30px;
	background-repeat: no-repeat;
	background-position: left top;
}
.page-footer-qr {
	text-align: right;
}
.page-footer-qr img {
	width: 200px;
}
.page-footer-copyright {
	margin-top: 30px;
	font-size: 16px;
	line-height: 60px;
	color: #666;
	text-align: center;
}
/* ===== 响应式断点 ===== */

/* xl: >= 1200px - 默认样式 */

/* lg: 992px - 1199px */
@media (max-width: 1199px) {
    .header {
        position: relative;
        background-color: #fff !important;
        color: #333;
    }

    .header.scrolled {
        position: fixed;
        background-color: #fff !important;
    }

    .logo-default {
        display: none;
    }

    .logo-mobile {
        display: inline;
    }

    .nav-container {
        padding: 14px 20px;
        align-items: center;
        position: relative;
    }

    .nav-left {
        position: absolute;
        left: 20px;
        top: 50%;
        transform: translateY(-50%);
    }

    .hamburger {
        display: flex;
    }

    .hamburger span {
        background-color: #333;
    }

    .nav-center {
        display: none !important;
    }

    .nav-right .btn-contact,
    .nav-right .btn-search {
        display: none;
    }

    .nav-right {
        position: absolute;
        left: 20px;
        top: 50%;
        transform: translateY(-50%);
    }

    .nav-left {
        position: static;
        transform: none;
        flex: 1;
        display: flex;
        justify-content: center;
    }
}

/* md: 768px - 991px */
@media (max-width: 991px) {
.page-footer-holder {
    grid-template-columns: repeat(3, 1fr);
}

}

/* sm: 576px - 767px */
@media (max-width: 767px) {

}

/* xs: < 576px */
@media (max-width: 575px) {
	
    .page-footer-holder {
    grid-template-columns: repeat(1, 1fr);
	}
	.page-footer-list, .page-footer-contact {
		padding: 20px;
		background-color: rgba(0,0,0,0.50);
	}
	.page-footer-contact {
		padding: 20px;
		background-color: rgba(0,0,0,0.50);
	}
	.page-footer-qr {
	text-align: center;
	}
}