* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

@font-face {
	font-family: 'IBMPlexSansSC-Light';
	src: url('https://junhe.oss-cn-beijing.aliyuncs.com/guge/fonts/IBMPlexSansSC-Light.woff2');
}

@font-face {
	font-family: 'IBMPlexSansSC-ExtraLight';
	src: url('https://junhe.oss-cn-beijing.aliyuncs.com/guge/fonts/IBMPlexSansSC-ExtraLight.woff2');
}

body {
	font-family: "IBMPlexSansSC-Light";
	font-size: 100%;
	overflow-x: hidden;
}

ul,
ol,
li {
	list-style: none !important;
	list-style-type: none !important;
	margin: 0 !important;
	padding: 0 !important;
}

a,
button,
[role="button"],
[onclick] {
	cursor: pointer;
}

a {
	text-decoration: none;
}

/* ── Header ── */

.header {
	width: 100%;
	height: 0.7rem;
	position: relative;
}

.header-content {
	width: 100%;
	height: 0.7rem;
	padding: 0 0.5rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
	background: #FFFFFF;
	position: fixed !important;
	top: 0 !important;
	left: 0;
	z-index: 1000;
	transform: none !important;
}

.header-box {
	height: 0.7rem;
}

.header-content-left {
	display: flex;
	align-items: center;
}

.logo {
	display: flex;
	align-items: center;
	width: 1.73rem;
	height: 0.36rem;
	flex-shrink: 0;
}

.logo .logo-img {
	width: 100%;
	height: 100%;
	object-fit: contain;
}

.header-divider {
	width: 0.01rem;
	height: 0.25rem;
	background: #E1E1E1;
	margin-left: 0.475rem;
	flex-shrink: 0;
}

.nav {
	display: flex;
	align-items: center;
	margin-left: 0.475rem;
	gap: 0.56rem;
}

.nav .nav-link {
	display: flex;
	align-items: center;
	text-decoration: none;
	font-size: 0.2rem;
	font-weight: 450;
	color: #161616;
	white-space: nowrap;
}

.header-phone {
	display: flex;
	align-items: center;
	font-size: 0.22rem;
	color: #FE0000;
	margin-left: auto;
	white-space: nowrap;
}

.phone-img {
	width: 0.16rem;
	height: 0.16rem;
	margin-right: 0.05rem;
}

/* ── Mobile menu toggle ── */

.menu-toggle {
	display: none;
	flex-direction: column;
	justify-content: space-between;
	width: 0.3rem;
	height: 0.2rem;
	cursor: pointer;
	z-index: 1001;
}

.menu-toggle span {
	width: 100%;
	height: 0.02rem;
	background-color: #000;
	transition: all 0.3s ease;
}

/* ── Navigation dropdown ── */
/* 与顶栏重叠一块命中区，避免鼠标从「业务」移入下拉时经过缝隙导致 :hover 丢失、菜单瞬间收起 */
:root {
	--nav-dropdown-overlap: 0.14rem;
	--nav-dropdown-panel-h: 5.36rem;
	--nav-header-h: 0.7rem;
}

.navigation {
	width: 100%;
	box-sizing: border-box;
	height: calc(var(--nav-dropdown-panel-h) + var(--nav-dropdown-overlap));
	padding-top: var(--nav-dropdown-overlap);
	background: #FFFFFF;
	position: fixed;
	left: 0;
	top: calc(var(--nav-header-h) - var(--nav-dropdown-overlap));
	z-index: 9999;
	border-top: none;
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transform: translateY(-0.08rem);
	transition: opacity 280ms ease, transform 280ms ease, visibility 0s linear 280ms;
}

.navigation.is-open {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
	transform: translateY(0);
	transition: opacity 280ms ease, transform 280ms ease, visibility 0s;
}

.header:has(.nav-link-business:hover) .navigation,
.header:has(.navigation:hover) .navigation {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
	transform: translateY(0);
	transition: opacity 280ms ease, transform 280ms ease, visibility 0s;
}

.nav-link-business {
	cursor: pointer;
}

.nav-link-business .select {
	width: 0.13rem;
	height: auto;
	margin-left: 0.12rem;
	transform: translateY(0.01rem);
	transition: transform 280ms ease;
}

.nav-link-business.is-open .select {
	transform: translateY(0.01rem) rotate(180deg);
}

.header:has(.nav-link-business:hover) .nav-link-business .select,
.header:has(.navigation:hover) .nav-link-business .select {
	transform: translateY(0.01rem) rotate(180deg);
}

@media (prefers-reduced-motion: reduce) {
	.navigation {
		transition: none;
	}

	.nav-link-business .select {
		transition: none;
	}
}

.navigation .container {
	height: 5.36rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
	border-top: 0.01rem solid #E6E6E6;
}

.navigation .navigation-left {
	height: 3.76rem;
	border-right: 0.01rem solid #E6E6E6;
	padding-right: 1rem;
}

.navigation .navigation-left .navigation-title {
	font-weight: 300;
	font-size: 0.5rem;
	color: #000000;
	line-height: 0.55rem;
}

.navigation .navigation-left .navigation-desc {
	font-weight: 300;
	font-size: 0.26rem;
	color: #000000;
	line-height: 0.38rem;
	margin-top: 0.29rem;
}

.navigation .navigation-left .navigation-phone {
	margin-top: 1.1rem;
	display: flex;
	align-items: center;
}

.navigation .navigation-left .navigation-phone img {
	width: 0.47rem;
	height: 0.47rem;
	margin-right: 0.12rem;
	margin-top: -0.05rem;
}

.navigation .navigation-left .navigation-phone .navigation-phone-value {
	font-size: 0.3rem;
	color: #333333;
	line-height: 0.3rem;
}

.navigation .navigation-left .navigation-phone .navigation-phone-label {
	font-size: 0.16rem;
	color: #333333;
}

.navigation .navigation-list {
	width: 13rem;
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	margin-top: 0.35rem;
}

.navigation .navigation-item {
	width: 3.89rem;
	height: 1.67rem;
	border: 0.01rem solid #E4E4E4;
	margin: 0 0.22rem;
	margin-bottom: 0.4rem;
}

.navigation .navigation-item:hover {
	background: #E4E4E4;
	cursor: pointer;
}

.navigation .navigation-item .navigation-icon {
	width: 0.6rem;
	height: 0.6rem;
	margin-left: 0.31rem;
	margin-top: 0.26rem;
	display: block;
}

.navigation .navigation-item .navigation-item-btn {
	padding: 0 0.31rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-size: 0.24rem;
	color: #101010;
}

.navigation .navigation-item .navigation-arrow {
	width: 0.16rem;
	height: 0.12rem;
}

#pc-scale {
	display: none;
}

/* ── Responsive ── */

@media (max-width: 768px) {
	.menu-toggle {
		display: flex;
	}

	.header-divider {
		display: none;
	}

	.nav {
		position: fixed;
		top: 0.7rem;
		left: 0;
		width: 100%;
		height: auto;
		flex-direction: column;
		align-items: flex-start;
		background: #FFFFFF;
		padding: 1rem;
		box-shadow: 0 0.05rem 0.1rem rgba(0, 0, 0, 0.1);
		transform: translateX(-100%);
		transition: transform 0.3s ease;
		z-index: 999;
		margin-left: 0;
		gap: 0;
	}

	.nav.active {
		transform: translateX(0);
	}

	.nav .nav-link {
		margin: 0.2rem 0;
		width: 100%;
		padding: 0.1rem 0;
	}

	.header-phone {
		display: none;
	}

	.navigation {
		position: static;
		top: auto;
		height: auto;
		padding-top: 0;
		opacity: 1;
		visibility: visible;
		pointer-events: auto;
		transform: none;
		border-top: none;
		margin-top: 0.2rem;
		transition: none;
	}

	.navigation .container {
		height: auto;
		flex-direction: column;
		align-items: flex-start;
		padding: 1rem 0;
		border-top: none;
	}

	.navigation .navigation-left {
		border-right: none;
		padding-right: 0;
		margin-bottom: 1rem;
	}

	.navigation .navigation-list {
		width: 100%;
		flex-direction: column;
		margin-top: 0;
	}

	.navigation .navigation-item {
		width: 100%;
		margin: 0.1rem 0;
	}
}