@charset "utf-8";
/* CSS Document */


/* ===== 顶部导航栏 ===== */
.top-header {
	background: #000000f0;
	backdrop-filter: blur(1px);
	width:100%;
	height: 100px;
	font-family: 'MiSans',  sans-serif;
	color: #ffffff;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 48px;
	position: fixed;
	border-bottom: 1px solid #eaeaea48;
	z-index: 999;
	gap: 20px;
	top: 0px;
}
.header-center {
	flex: 0.6;
}
.header-left,
.header-right {
	flex: 1.2;
}
.header-left,
.header-center,
.header-right {
	display: flex;
	align-items: center;
	min-width: 0;
}

/* 左栏：左对齐 */
.header-left {
	justify-content: flex-start;
	gap: 20px;
}
.header-left .mobile-logo {
	display: none;
}

/* 中栏：居中（Logo 在此区域内居中） */
.header-center {
	justify-content: center;
	position: static;
	transform: none;
	left: auto;
	top: auto;
}
.header-logo {
	width: 56px;
	height: 56px;
	flex-shrink: 0;
}

/* 右栏：右对齐 */
.header-right {
	justify-content: flex-end;
	gap: 34px;
	flex-wrap: nowrap;
}

/* ----- 右侧文字与图标 ----- */
.header-en-slogan {
	font-family: 'Mars';
	font-size: 18px;
	letter-spacing: 5px;
	white-space: nowrap;
}
.header-en-slogan span {
	color: #d81828;
}
.header-cn-slogan {
	font-size: 17px;
	letter-spacing: 3px;
	font-family: 'MiSans';
	opacity: 1;
	white-space: nowrap;
}

.header-bottom {
	text-align: center;
    /* border-top: 1px solid #eaeaea48; */
    /* margin: 110px 50px 0; */
    z-index: 11;
    position: fixed;
    width: 100%;
    top: 102px;
}
.header-bottom img {
	width: 120px;
	margin-top: 7px;
	opacity: 0.7;
}

/* ----- 导航项 ----- */
.nav-item {
	position: relative;
	font-size: 16px;
	padding: 10px 0;
	cursor: pointer;
	white-space: nowrap;
}

.nav-item:hover::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 100%;
	height: 2px;
	background: #d81828;
}

/* ===== PC端下拉菜单（普通菜单） ===== */
.nav-submenu {
	position: fixed;
	left: 50%;
	top: 100px;
	transform: translateX(-50%);
	width: 100%;
	background: #000000f0;
	padding: 40px 3% 30px;
	z-index: 998;
	border-radius: 0 0 30px 30px;
	backdrop-filter: blur(6px);
	box-shadow: 0px 2px 9px rgb(69 0 0 / 80%);
	visibility: hidden;
	opacity: 0;
	transition: opacity 0.3s ease, visibility 0.3s ease;
	max-height: 80vh;
	overflow-y: auto;
	pointer-events: none;
}
.nav-submenu.visible {
	visibility: visible;
	opacity: 1;
	pointer-events: auto;
}

/* ===== 智控产品专用下拉菜单（独立控制高度） ===== */
.nav-submenu-zk {
	position: fixed;
	left: 50%;
	top: 100px;
	transform: translateX(-50%);
	width: 100%;
	background: #000000f0;
	padding: 40px 3% 30px;
	z-index: 998;
	border-radius: 0 0 30px 30px;
	backdrop-filter: blur(6px);
	box-shadow: 0px 2px 9px rgb(69 0 0 / 80%);
	visibility: hidden;
	opacity: 0;
	transition: opacity 0.3s ease, visibility 0.3s ease;
	/* ===== 单独控制高度：用户可在此自定义 ===== */
	max-height: 60vh;
	/* 示例值，您可以根据需要调整 */
	min-height: 180px;
	overflow-y: auto;
	pointer-events: none;
}
.nav-submenu-zk.visible {
	visibility: visible;
	opacity: 1;
	pointer-events: auto;
}

/* ----- 下拉内容动画（两种类共用） ----- */
.nav-submenu .nav_con a,
.nav-submenu .nav_con .menu-p,
.nav-submenu .nav_con .meiti,
.nav-submenu .nav_con .zkcp,
.nav-submenu .nav_con .anli,
.nav-submenu .nav_con .xwzx,
.nav-submenu .nav_con .our,
.nav-submenu-zk .nav_con a,
.nav-submenu-zk .nav_con .menu-p,
.nav-submenu-zk .nav_con .meiti,
.nav-submenu-zk .nav_con .zkcp,
.nav-submenu-zk .nav_con .anli,
.nav-submenu-zk .nav_con .xwzx,
.nav-submenu-zk .nav_con .our {
	opacity: 0;
	transform: translateY(20px);
	transition: opacity 0.4s ease 0.1s, transform 0.4s ease 0.1s;
}
.nav-submenu.visible .nav_con a,
.nav-submenu.visible .nav_con .menu-p,
.nav-submenu.visible .nav_con .meiti,
.nav-submenu.visible .nav_con .zkcp,
.nav-submenu.visible .nav_con .anli,
.nav-submenu.visible .nav_con .xwzx,
.nav-submenu.visible .nav_con .our,
.nav-submenu-zk.visible .nav_con a,
.nav-submenu-zk.visible .nav_con .menu-p,
.nav-submenu-zk.visible .nav_con .meiti,
.nav-submenu-zk.visible .nav_con .zkcp,
.nav-submenu-zk.visible .nav_con .anli,
.nav-submenu-zk.visible .nav_con .xwzx,
.nav-submenu-zk.visible .nav_con .our {
	opacity: 1;
	transform: translateY(0);
}

.nav_con {
	width: 100%;
	margin: auto;
	overflow: hidden;
}
.menu {
	float: right;
	width: auto;
	padding-top: 20px;
	height: 240px;
}
.menu-p {
	float: left;
	width: 375px;
	overflow: hidden;
}
.menu-p1 {
	float: left;
	width: 285px;
	overflow: hidden;
}
.menu_tit {
	width: 100%;
	height: 45px;
}
.menu_tit a {
	display: block;
	height: 45px;
	line-height: 45px;
	font-size: 20px;
	color: #fff;
	transition: color 0.3s;
}
.menu_tit a:hover {
	color: #d81828;
}
.menu-p_con {
	width: 100%;
	height: 205px;
	margin-top: 5px;
	background: url(../image/kong_03.png) no-repeat left 7px;
}
.menu-p_con a {
	float: left;
	display: block;
	width: 120px;
	height: 180px;
	cursor: pointer;
}
.menu-p_con a:hover .menu-p_1 {
	color: #d81828;
}
.menu-p_con a:nth-child(1) {
	background: none;
}
.menu-p_1 {
	width: 100%;
	text-align: center;
	font-size: 16px;
	color: #fff;
	line-height: 70px;
	height: 70px;
	transition: color 0.3s;
}
.menu-p_2 {
	width: 100%;
	text-align: center;
}
.menu-p_2 img {
	height: 42px;
}
.menu-p_4 {
	width: 140px;
	text-align: center;
	font-size: 20px;
	color: #fff;
	line-height: 70px;
	height: 70px;
	transition: color 0.3s;
}
.menu-p_5 {
	width: 100%;
	text-align: center;
}
.menu-p_5 img {
	height: 42px;
}

.menu-p:nth-child(1) {
	width: 500px;
}
.menu-p:last-child {
	width: 500px;
}
.menu-p1:nth-child(1) {
	width: 630px;
}
.menu-p1:nth-child(2) {
	width: 100px;
}

/* ----- 官媒报导样式 ----- */
.meiti {
	height: 150px;
	text-align: right;
	padding-right: 4.1%;
}
.meiti a {
	display: inline-block;
	height: 100%;
	text-align: center;
	cursor: pointer;
	transition: color 0.3s;
}
.meiti a:hover {
	color: #d81828;
}
.meiti a:hover .menu-p_4 {
	color: #d81828;
}
.meiti a .menu-p_4 {
	width: 120px;
}

/* ----- 行业案例样式 ----- */
.anli {
	width: 100%;
	height: 150px;
	text-align: right;
	padding-right: 40px;
}
.anli a {
	display: inline-block;
	height: 150px;
	transition: color 0.3s;
}
.anli a:nth-child(2) {
	margin: 0;
}
.anli a:last-child {
	margin-left: 20px;
}
.anli a:hover {
	color: #d81828;
}
.anli a:hover .menu-p_4 {
	color: #d81828;
}
.anli a:last-child .menu-p_4 {
	width: 100px;
}

/* ----- 新闻样式 ----- */
.xwzx {
	width: 100%;
	height: 150px;
	text-align: right;
	padding-right: 40px;
}
.xwzx a {
	display: inline-block;
	height: 100%;
	text-align: center;
	cursor: pointer;
	transition: color 0.3s;
}
.xwzx a:last-child {
	margin-left: 0;
}
.xwzx a:hover {
	color: #d81828;
}
.xwzx a:hover .menu-p_4 {
	color: #d81828;
}

/* ----- 联系我们样式 ----- */
.our {
	width: 100%;
	height: 150px;
	text-align: right;
	padding-right: 4%;
}
.our a {
	display: inline-block;
	height: 150px;
	transition: color 0.3s;
}
.our a:nth-child(2) {
	margin: 0;
}
.our a:last-child {
	margin-left: 20px;
}
.our a:hover {
	color: #d81828;
}
.our a:hover .menu-p_4 {
	color: #d81828;
}
.our a:last-child .menu-p_4 {
	width: 100px;
}

/* ===== 智控产品样式 ===== */
.zkcp {
	width: 100%;
	height: 250px;
	text-align: right;
	padding-right: 1.2%;
}
.zkcp .zkcp-menu-icon{
	color: #fff;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
	gap: 10px;
}
.zkcp .menu-p_5 img {
	width: 180px;
	height: 180px;
}
.zkcp .zkcp-icon{
	height: 24px;
}

.zkcp a {
	display: inline-block;
	height: 190px;
	transition: color 0.3s;
	margin-right: 50px;
	border-right: 1px solid #eeeeee30;
	padding-right: 50px;
}

.zkcp a:last-child {
	border-right: 0px solid;
}
.zkcp a:hover {
	color: #d81828;
}

.zkcp .menu-p_4 {
	width: 180px;
	
}

/* ===== 产品中心下拉面板（PC端使用 visibility 控制） ===== */
.product-drop-panel {
	position: fixed;
	left: 50%;
	top: 100px;
	transform: translateX(-50%);
	width: 100%;
	background: #000000f0;
	backdrop-filter: blur(6px);
	padding: 15px 3% 30px;
	z-index: 998;
	border-radius: 0 0 30px 30px;
	max-height: 80vh;
	overflow-y: auto;
	box-shadow: 0px 2px 9px rgb(69 0 0 / 80%);
	visibility: hidden;
	opacity: 0;
	transition: opacity 0.25s ease, visibility 0.25s ease;
	pointer-events: none;
}
.product-drop-panel.visible {
	visibility: visible;
	opacity: 1;
	pointer-events: auto;
}

.product-view-wrap {
	width: 100%;
	overflow: hidden;
}
.scroll-container {
	width: 100%;
	overflow: hidden;
	position: relative;
}
.product-list {
	display: flex;
	flex-wrap: nowrap;
	transition: transform 0.4s ease-out;
	will-change: transform;
}

.product-item {
	flex: 0 0 270px;
	padding: 0 12px;
	text-align: center;
	position: relative;
	flex-shrink: 0;
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
		transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
	transition-delay: 0s;
}
.product-item.show {
	opacity: 1;
	transform: translateY(0);
}
.product-item:not(:last-child)::after {
	content: "";
	position: absolute;
	right: 0;
	top: 10%;
	height: 80%;
	width: 1px;
	background: #222;
}
.product-item .img-box {
	width: 100%;
	height: 220px;
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 12px;
}
.product-item .img-box img {
	width: 80%;
	height: auto;
	object-fit: contain;
}
.product-item p {
	color: #fff;
	font-size: 16px;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
}
.product-item p .icon-mini {
	width: 24px;
	height: 24px;
	object-fit: contain;
}

.tab-wrap {
	margin-top: 36px;
	display: flex;
	align-items: center;
	gap: 16px;
}
.arrow {
	width: 100px;
	height: 50px;
	border-radius: 40px;
	background: rgb(66 66 66 / 28%);
	border: 0px solid #333;
	color: #fff;
	font-size: 32px;
	cursor: pointer;
	transition: background 0.2s, border-color 0.2s;
	flex-shrink: 0;
	display: flex;
	justify-content: center;
}
.arrow:hover {
	background: #d81828;
	border-color: #d81828;
}
.arrow:disabled {
	cursor: not-allowed;
	background: rgb(66 66 66 / 28%);
	border-color: #333;
}
.tab-nav {
	flex: 1;
	background: rgb(66 66 66 / 28%);
	border-radius: 99px;
	padding: 12px 3%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: nowrap;
	gap: 10px;
	min-width: 0;
}
.tab-left-group,
.tab-right-group {
	display: flex;
	gap: 30px;
	list-style: none;
	white-space: nowrap;
	flex-wrap: wrap;
	justify-content: center;
}
.tab-divider {
	width: 1px;
	height: 28px;
	background: #444;
	flex-shrink: 0;
	margin: 0 6px;
}
.tab-list li {
	color: #aaa;
	font-size: 16px;
	letter-spacing: 2px;
	cursor: pointer;
	transition: color 0.2s;
	padding: 2px 4px;
}
.tab-list li.active {
	color: #ff2222;
	font-weight: bold;
}
.tab-list li:hover:not(.active) {
	color: #fff;
}

.lang-box {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 15px;
	border-left: 1px solid #ffffff;
	padding-left: 20px;
	flex-shrink: 0;
}
.lang-box-a {
	display: flex;
}
.lang-box-img {
	width: 20px;
}

/* ===== 汉堡菜单按钮 ===== */
.hamburger-btn {
	display: none;
	flex-direction: column;
	justify-content: space-between;
	width: 30px;
	height: 22px;
	cursor: pointer;
	z-index: 1001;
	position: relative;
}
.hamburger-btn span {
	display: block;
	height: 2px;
	width: 100%;
	background: #ffffff;
	border-radius: 3px;
	transition: all 0.3s ease;
}
.hamburger-btn.active span:nth-child(1) {
	transform: translateY(9.5px) rotate(45deg);
}
.hamburger-btn.active span:nth-child(2) {
	opacity: 0;
}
.hamburger-btn.active span:nth-child(3) {
	transform: translateY(-9.5px) rotate(-45deg);
}

/* ===== 移动端全屏侧边菜单 ===== */
.mobile-menu-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;
	background: rgba(0, 0, 0, 0.92);
	backdrop-filter: blur(12px);
	z-index: 1000;
	display: none;
	opacity: 0;
	transition: opacity 0.3s ease;
	overflow: hidden;
}
.mobile-menu-overlay.open {
	display: flex;
	opacity: 1;
}

.mobile-menu-container {
	display: flex;
	width: 100%;
	height: 100%;
	padding: 30px 20px 20px;
	gap: 0;
}

.mobile-menu-left {
	width: 25%;
	min-width: 140px;
	border-right: 1px solid rgba(255, 255, 255, 0.15);
	padding-right: 20px;
	overflow-y: auto;
	display: flex;
	flex-direction: column;
	justify-content: flex-start;
	padding-top: 20px;
}
.mobile-menu-left ul {
	display: flex;
	flex-direction: column;
	gap: 6px;
}
.mobile-menu-left ul li {
	padding: 14px 12px;
	font-size: 18px;
	color: rgba(255, 255, 255, 0.6);
	cursor: pointer;
	border-radius: 10px;
	transition: all 0.25s ease;
	letter-spacing: 1px;
	font-weight: 400;
	position: relative;
}
.mobile-menu-left ul li:hover {
	color: #fff;
	background: rgba(255, 255, 255, 0.06);
}
.mobile-menu-left ul li.active {
	color: #fff;
	background: rgba(216, 24, 40, 0.25);
	font-weight: 600;
}
.mobile-menu-left ul li.active::after {
	content: "";
	position: absolute;
	right: -1px;
	top: 50%;
	transform: translateY(-50%);
	width: 3px;
	height: 24px;
	background: #d81828;
	border-radius: 3px;
}

.mobile-menu-right {
	width: 75%;
	padding-left: 28px;
	overflow-y: auto;
	overflow-x: hidden;
	padding-top: 20px;
	max-height: calc(100vh - 120px);
	position: relative;
}

.level2-content-wrapper {
	width: 100%;
	min-height: 200px;
	transition: opacity 0.25s ease, transform 0.25s ease;
	opacity: 1;
	transform: translateY(0);
}
.level2-content-wrapper.fade-out {
	opacity: 0;
	transform: translateY(12px);
	pointer-events: none;
}

.mobile-submenu-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	align-content: start;
}

.mobile-submenu-grid .sub-item {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: 18px 12px 14px;
	background: rgba(255, 255, 255, 0.05);
	border-radius: 14px;
	color: rgba(255, 255, 255, 0.85);
	font-size: 14px;
	letter-spacing: 1px;
	transition: all 0.25s ease;
	text-align: center;
	border: 1px solid rgba(255, 255, 255, 0.06);
	min-height: 80px;
	cursor: pointer;
}
.mobile-submenu-grid .sub-item:hover,
.mobile-submenu-grid .sub-item:active {
	background: rgba(216, 24, 40, 0.15);
	color: #fff;
	border-color: rgba(216, 24, 40, 0.25);
	transform: translateY(-2px);
}
.mobile-submenu-grid .sub-item .sub-icon {
	width: 48px;
	height: 48px;
	object-fit: contain;
	margin-bottom: 8px;
	display: block;
	flex-shrink: 0;
}
.mobile-submenu-grid .sub-item .sub-label {
	font-size: 13px;
	line-height: 1.3;
	word-break: break-all;
}

.product-group-container {
	width: 100%;
}
.product-group {
	margin-bottom: 24px;
}
.product-group .group-title {
	font-size: 16px;
	font-weight: 600;
	color: rgba(255, 255, 255, 0.7);
	letter-spacing: 2px;
	margin-bottom: 10px;
	padding-bottom: 6px;
	border-bottom: 1px solid rgba(255, 255, 255, 0.08);
	display: flex;
	align-items: center;
	gap: 8px;
}
.product-group .group-title .group-icon {
	width: 28px;
	height: 28px;
	object-fit: contain;
}
.product-group .product-items {
	display: grid;
	grid-template-columns: 1fr 1fr 1fr;
	gap: 12px;
}
.product-group .product-items .product-card {
	display: flex;
	flex-direction: column;
	align-items: center;
	padding: 12px 6px 10px;
	background: rgba(255, 255, 255, 0.04);
	border-radius: 12px;
	cursor: pointer;
	transition: all 0.2s;
	border: 1px solid transparent;
	text-align: center;
}
.product-group .product-items .product-card:hover {
	background: rgba(216, 24, 40, 0.12);
	border-color: rgba(216, 24, 40, 0.15);
	transform: translateY(-2px);
}
.product-group .product-items .product-card img {
	width: 126px;
	height: 126px;
	object-fit: contain;
	margin-bottom: 6px;
	display: block;
}
.product-group .product-items .product-card .product-name {
	font-size: 12px;
	color: rgba(255, 255, 255, 0.8);
	line-height: 1.2;
}

.empty-tip {
	grid-column: 1 / -1;
	text-align: center;
	color: rgba(255, 255, 255, 0.35);
	font-size: 16px;
	padding: 40px 0;
	letter-spacing: 2px;
}

.mobile-menu-footer {
	position: fixed;
	bottom: 30px;
	left: 0;
	width: 100%;
	padding: 0 25px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	z-index: 1002;
	pointer-events: none;
}
.mobile-menu-footer>* {
	pointer-events: auto;
}
.mobile-menu-footer .lang-box-mobile {
	display: flex;
	align-items: center;
	gap: 10px;
	color: rgba(255, 255, 255, 0.6);
	font-size: 15px;
	padding-left: 0px;
}
.mobile-menu-footer .lang-box-mobile a {
	display: flex;
	align-items: center;
}
.mobile-menu-footer .lang-box-mobile img {
	width: 22px;
	height: 22px;
}
.mobile-menu-close-btn {
	width: 44px;
	height: 44px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.08);
	border: 1px solid rgba(255, 255, 255, 0.15);
	color: #fff;
	font-size: 26px;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: all 0.25s ease;
	pointer-events: auto;
}
.mobile-menu-close-btn:hover {
	background: rgba(216, 24, 40, 0.3);
	border-color: #d81828;
	transform: rotate(90deg);
}

/* ============================================================
		   响应式适配
		   ============================================================ */
@media screen and (max-width: 1860px) {
	.header-right {
		gap: 24px;
	}
}

@media screen and (max-width: 1640px) {
	.header-right {
		gap: 15px;
	}
	.header-left {
		gap: 12px;
	}
	.header-bottom img {
		width: 100px;
	}
	.menu-p {
		width: 300px;
	}
	.menu-p:nth-child(1) {
		width: 400px;
	}
	.menu-p:last-child {
		width: 400px;
	}
	.menu-p_con a {
		width: 100px;
	}
}


@media screen and (max-width: 1530px) {
	.tab-left-group,
	.tab-right-group {
		gap: 20px;
	}
}

@media screen and (max-width: 1510px) {
	.header-right {
		gap: 13px;
	}
}

@media screen and (max-width: 1470px) {
	.top-header {
		padding: 0 24px;
	}
	.header-right {
		gap: 12px;
	}
	.header-left {
		gap: 10px;
	}
	.header-en-slogan {
		font-size: 15px;
		letter-spacing: 3px;
	}
	.header-cn-slogan {
		font-size: 14px;
		letter-spacing: 2px;
	}
	.nav-item {
		font-size: 14px;
		padding: 8px 0;
	}
	.lang-box {
		padding-left: 12px;
		font-size: 13px;
	}
}

@media screen and (max-width: 1410px) {
	.tab-left-group,
	.tab-right-group {
		gap: 15px;
	}
}

@media screen and (max-width: 1360px) {
	.tab-left-group,
	.tab-right-group {
		gap: 10px;
	}
	.tab-list li {
		font-size: 14px;
	}

@media screen and (max-width: 1280px) {
	.header-right {
		gap: 10px;
	}
}
@media screen and (max-width: 1225px) {
	.header-right {
		gap: 9px;
	}
}

/* ===== PC端覆盖：产品面板使用 visibility 控制 ===== */
@media screen and (min-width: 1201px) {
	.product-drop-panel {
		display: block;
	}
}

@media screen and (max-width: 1200px) {
	
		
	.header-bottom {
		display: none;
	}
	
	.top-header {
		height: 76px;
		padding: 0 16px;
		justify-content: space-between;
		gap: 0;
	}

	.header-left {
		flex: 0 0 auto;
		gap: 12px;
		justify-content: flex-start;
	}
	.header-left .header-en-slogan,
	.header-left .header-cn-slogan {
		display: none !important;
	}
	.header-left .mobile-logo {
		display: block;
		width: 44px;
		height: 44px;
		flex-shrink: 0;
	}

	.header-center {
		flex: 0 0 auto;
		display: none !important;
	}

	.header-right {
		flex: 0 0 auto;
		gap: 12px;
		justify-content: flex-end;
	}
	.header-right .nav-item {
		display: none !important;
	}
	.header-right .lang-box {
		display: none !important;
	}

	.hamburger-btn {
		display: flex;
	}

	/* 移动端下拉面板（普通菜单） */
	.nav-submenu {
		position: fixed;
		left: 0;
		top: 0;
		transform: none;
		width: 100vw;
		height: 100vh;
		padding: 100px 5% 40px;
		border-radius: 0;
		max-height: 100vh;
		visibility: hidden;
		opacity: 0;
		transition: opacity 0.3s, visibility 0.3s;
		z-index: 997;
		pointer-events: none;
		display: block !important;
	}
	.nav-submenu.open {
		visibility: visible;
		opacity: 1;
		pointer-events: auto;
	}

	/* 移动端下拉面板（智控产品专用） */
	.nav-submenu-zk {
		position: fixed;
		left: 0;
		top: 0;
		transform: none;
		width: 100vw;
		height: 100vh;
		padding: 100px 5% 40px;
		border-radius: 0;
		max-height: 100vh;
		visibility: hidden;
		opacity: 0;
		transition: opacity 0.3s, visibility 0.3s;
		z-index: 997;
		pointer-events: none;
		display: block !important;
		/* 移动端覆盖固定高度，改为全屏 */
		min-height: auto;
	}
	.nav-submenu-zk.open {
		visibility: visible;
		opacity: 1;
		pointer-events: auto;
	}

	.nav-submenu .nav_con a,
	.nav-submenu .nav_con .menu-p,
	.nav-submenu .nav_con .meiti,
	.nav-submenu .nav_con .zkcp,
	.nav-submenu .nav_con .anli,
	.nav-submenu .nav_con .xwzx,
	.nav-submenu .nav_con .our,
	.nav-submenu-zk .nav_con a,
	.nav-submenu-zk .nav_con .menu-p,
	.nav-submenu-zk .nav_con .meiti,
	.nav-submenu-zk .nav_con .zkcp,
	.nav-submenu-zk .nav_con .anli,
	.nav-submenu-zk .nav_con .xwzx,
	.nav-submenu-zk .nav_con .our {
		opacity: 0;
		transform: translateY(20px);
		transition: opacity 0.4s ease 0.1s, transform 0.4s ease 0.1s;
	}
	.nav-submenu.open .nav_con a,
	.nav-submenu.open .nav_con .menu-p,
	.nav-submenu.open .nav_con .meiti,
	.nav-submenu.open .nav_con .zkcp,
	.nav-submenu.open .nav_con .anli,
	.nav-submenu.open .nav_con .xwzx,
	.nav-submenu.open .nav_con .our,
	.nav-submenu-zk.open .nav_con a,
	.nav-submenu-zk.open .nav_con .menu-p,
	.nav-submenu-zk.open .nav_con .meiti,
	.nav-submenu-zk.open .nav_con .zkcp,
	.nav-submenu-zk.open .nav_con .anli,
	.nav-submenu-zk.open .nav_con .xwzx,
	.nav-submenu-zk.open .nav_con .our {
		opacity: 1;
		transform: translateY(0);
	}

	.product-drop-panel {
		position: fixed;
		left: 0;
		top: 0;
		transform: none;
		width: 100vw;
		max-width: 100vw;
		height: 100vh;
		padding: 100px 5% 40px;
		border: none;
		max-height: 100vh;
		box-shadow: none;
		z-index: 997;
		display: none;
		pointer-events: none;
	}
	.product-drop-panel.open {
		display: block;
		pointer-events: auto;
	}

	.menu-p {
		width: 100% !important;
		float: none;
		margin-bottom: 30px;
	}
	.menu-p_con a {
		width: 80px;
	}
	.menu-p_con {
		height: auto;
		background: none;
	}

	/* 移动端所有下拉内容块统一样式 */
	.meiti,
	.anli,
	.xwzx,
	.our,
	.zkcp {
		width: 100%;
		height: auto;
		text-align: center;
		padding-right: 0;
	}
	.meiti a,
	.anli a,
	.xwzx a,
	.our a,
	.zkcp a {
		display: inline-block;
		height: auto;
		margin: 10px;
	}
	.menu-p_4 {
		width: auto;
		font-size: 18px;
		line-height: 40px;
		height: 40px;
	}
	.menu-p_5 img {
		height: 32px;
	}

	.tab-nav {
		flex-direction: column;
		border-radius: 16px;
		padding: 16px;
		background: #111;
		gap: 8px;
	}
	.tab-divider {
		width: 80%;
		height: 1px;
		margin: 4px auto;
	}
	.tab-left-group,
	.tab-right-group {
		gap: 14px;
		flex-wrap: wrap;
		justify-content: center;
	}
	.tab-list li {
		font-size: 13px;
		letter-spacing: 1px;
	}
	.product-item {
		flex: 0 0 calc(100% / 2);
	}
	.arrow {
		width: 40px;
		height: 40px;
		font-size: 16px;
	}
	.tab-wrap {
		gap: 10px;
		flex-wrap: wrap;
		justify-content: center;
	}

	.product-group .product-items {
		grid-template-columns: 1fr 1fr;
		gap: 10px;
	}

	.product-group .product-items .product-card img {
		width: 108px;
		height: 108px;
	}

	.mobile-menu-left {
		min-width: 100px;
		padding-right: 12px;
	}
	.mobile-menu-left ul li {
		font-size: 15px;
		padding: 10px 8px;
	}
	.mobile-menu-right {
		padding-left: 16px;
		max-height: calc(100vh - 100px);
	}
	.mobile-submenu-grid {
		gap: 10px;
	}
	.mobile-submenu-grid .sub-item {
		font-size: 12px;
		padding: 12px 8px 10px;
		min-height: 70px;
	}
	.mobile-submenu-grid .sub-item .sub-icon {
		width: 40px;
		height: 40px;
	}
	.mobile-menu-container {

		padding: 16px 10px 10px;
	}
	.mobile-menu-close-btn {
		width: 36px;
		height: 36px;
		font-size: 20px;
	}
}


@media screen and (max-width: 768px) {

	
	.product-item {
		flex: 0 0 calc(100% / 2);
	}
	.top-header {
		padding: 10px 12px;
		height: 60px;
	}
	.header-left .mobile-logo {
		width: 36px;
		height: 36px;
	}
	.product-drop-panel {
		padding: 80px 4% 30px;
	}
	.tab-left-group,
	.tab-right-group {
		gap: 10px;
	}
	.tab-list li {
		font-size: 12px;
	}

	.mobile-menu-left {
		min-width: 100px;
		padding-right: 12px;
	}
	.mobile-menu-left ul li {
		font-size: 15px;
		padding: 10px 8px;
	}
	.mobile-menu-right {
		padding-left: 16px;
		max-height: calc(100vh - 100px);
	}
	.mobile-submenu-grid {
		gap: 10px;
	}
	.mobile-submenu-grid .sub-item {
		font-size: 12px;
		padding: 12px 8px 10px;
		min-height: 70px;
	}
	.mobile-submenu-grid .sub-item .sub-icon {
		width: 40px;
		height: 40px;
	}
	.mobile-menu-container {
		padding: 16px 10px 10px;
	}
	.mobile-menu-close-btn {
		width: 36px;
		height: 36px;
		font-size: 20px;
	}

	.product-group .product-items {
		grid-template-columns: 1fr 1fr;
	}
	.product-group .product-items .product-card img {
		width: 90px;
		height: 90px;
	}
	.product-group .product-items .product-card .product-name {
		font-size: 11px;
	}
}

@media screen and (max-width: 480px) {
	.product-item {
		flex: 0 0 100%;
	}
	.product-item .img-box {
		height: 160px;
	}
	.tab-wrap {
		flex-direction: column;
		align-items: stretch;
	}
	.arrow {
		width: 36px;
		height: 36px;
		font-size: 14px;
		align-self: center;
	}
	.tab-nav {
		padding: 12px 10px;
	}

	.mobile-menu-left {
		min-width: 80px;
		padding-right: 8px;
	}
	.mobile-menu-left ul li {
		font-size: 13px;
		padding: 8px 6px;
		border-radius: 6px;
	}
	.mobile-menu-right {
		padding-left: 10px;
		max-height: calc(100vh - 80px);
	}
	.mobile-submenu-grid {
		gap: 8px;
	}
	.mobile-submenu-grid .sub-item {
		font-size: 11px;
		padding: 10px 4px 8px;
		min-height: 60px;
		border-radius: 10px;
	}
	.mobile-submenu-grid .sub-item .sub-icon {
		width: 32px;
		height: 32px;
	}
	.mobile-menu-container {
		padding: 12px 6px 6px;
	}
	.mobile-menu-close-btn {
		width: 32px;
		height: 32px;
		font-size: 18px;
	}

	.product-group .product-items {
		grid-template-columns: 1fr 1fr;
		gap: 6px;
	}
	.product-group .product-items .product-card {
		padding: 8px 4px 6px;
	}
	.product-group .product-items .product-card img {
		width: 76px;
		height: 76px;
	}
	.product-group .product-items .product-card .product-name {
		font-size: 10px;
	}
}