.contact-us {
	position: relative;
	margin: 0 auto;
	overflow: hidden;
	background: url(../images/cont.jpg);
	padding: 100px 0;
}

/* ===== 标题：Contact Us ===== */
.contact-us .contact-title {
	text-align: center;
	font-size: 54px;
	font-weight: 700;
	color: #fff;
	letter-spacing: 2px;
	margin-bottom: 110px;
}


.contact-us-grid {
	display: flex;
	justify-content: space-around;
	align-items: flex-start;
	flex-wrap: wrap;
	gap: 40px 20px;
	width: 90%;
	margin: 0 auto;
}

.contact-us-item {
	flex: 0 1 300px;
	text-align: center;
}

.contact-us-item .icon {
	width: 80px;
	height: 80px;
	margin: 0 auto 18px;
	color: #fff;
	/* opacity: .92; */
}

.contact-us-item .icon img {
	width: 100%;
	height: 100%;
	display: block;
}

.contact-us-item .label {
	font-size: 20px;
	font-weight: 700;
	color: #fff;
	letter-spacing: 1px;
	margin-bottom: 16px;
}

.contact-us-item .info {
	font-size: 18px;
	line-height: 1.8;
	color: #fff;
}


.contact-us .police-watermark {
	position: absolute;
	bottom: 34px;
	left: 0;
	width: 100%;
	text-align: center;
	font-size: 30px;
	font-weight: 700;
	color: rgba(255, 255, 255, .07);
	letter-spacing: 14px;
	user-select: none;
	pointer-events: none;
}


@media (max-width: 1100px) {
	.contact-us {
		padding: 60px 0;
	}

	.contact-us-grid {
		justify-content: center;
	}

	.contact-us-item .info {
		font-size: 16px;
	}
}

@media (max-width: 760px) {
	.contact-us {
		padding: 40px 0;
	}

	.contact-us-title {
		font-size: 38px;
		margin-bottom: 70px;
	}

	.contact-us-item {
		flex: 0 1 160px;
	}

	.contact-us-item .info {
		font-size: 14px;
	}
}

.contact-us-page {
	margin: 0 auto;
	padding: 60px 0 80px;
	background: url(../images/bg1.png);
	display: grid;
	justify-content: center;
}

/* ===== 标题 ===== */
.contact-us-title {
	text-align: center;
	font-size: 42px;
	font-weight: 700;
	color: #111;
	letter-spacing: 1px;
	margin-bottom: 56px;
}


.contact-us-page .main {
	display: flex;
	align-items: flex-start;
	gap: 70px;
}


.sidebar {
	flex: 0 0 260px;
	border-radius: 6px;
	padding: 18px 0;
}

.sidebar ul {
	list-style: none;
}

/* 一级菜单 */
.sidebar>ul>li>a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 20px;
	font-size: 19px;
	font-weight: 600;
	color: #222;
	text-decoration: none;
	border-bottom: 1px solid #f0f2f4;
	transition: background .18s ease, color .18s ease;
}

.sidebar>ul>li:last-child>a {
	border-bottom: none;
}

.sidebar>ul>li>a:hover {
	background: #f2f5f8;
	color: #0056b3;
}

/* 展开箭头（▸ / ▾） */
.sidebar .arrow {
	width: 8px;
	height: 8px;
	border-right: 2px solid #9aa3ad;
	border-bottom: 2px solid #9aa3ad;
	transform: rotate(-45deg);
	/* 收起：指向右 ▸ */
	transition: transform .2s ease;
}

.sidebar li.open>a .arrow {
	transform: rotate(45deg);
}

/* 展开：指向下 ▾ */

/* 二级菜单 */
.sidebar .submenu {
	display: none;
}

.sidebar li.open>.submenu {
	display: block;
}

.sidebar .submenu li a {
	display: block;
	padding: 11px 20px 11px 46px;
	font-size: 16px;
	color: #555;
	text-decoration: none;
	border-bottom: 1px solid #f4f5f7;
	transition: background .18s ease, color .18s ease;
}

.sidebar .submenu li:last-child a {
	border-bottom: none;
}

.sidebar .submenu li a:hover {
	background: #f2f5f8;
	color: #0056b3;
}

.sidebar .submenu li a:before {
	content: "";
	display: inline-block;
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: #c2c9d0;
	margin-right: 10px;
	vertical-align: 2px;
}

/* ============================================================
     右侧表单
     ============================================================ */
.contact-us-form {
	flex: 0 0 780px;
	max-width: 780px;
	border-radius: 6px;
	padding: 42px 46px 46px;
}

.contact-us-form .field {
	margin-bottom: 26px;
}

.contact-us-form label {
	display: block;
	font-size: 18px;
	font-weight: 600;
	color: #222;
	margin-bottom: 12px;
}

.contact-us-form label em {
	font-style: normal;
	color: #e02020;
	margin-left: 2px;
}

.contact-us-form input,
.contact-us-form textarea {
	width: 100%;
	padding: 12px 14px;
	font-size: 15px;
	color: #333;
	background: #fafbfc;
	border: 1px solid #d9dde2;
	border-radius: 4px;
	outline: none;
	transition: border-color .18s ease, box-shadow .18s ease;
}

.contact-us-form input:focus,
.contact-us-form textarea:focus {
	border-color: #0056b3;
	box-shadow: 0 0 0 3px rgba(0, 86, 179, .08);
	background: #fff;
}

.contact-us-form input::placeholder,
.contact-us-form textarea::placeholder {
	color: #9aa3ad;
}

.contact-us-form textarea {
	height: 130px;
	resize: vertical;
	line-height: 1.6;
}

.contact-us-form .btn-submit {
	margin-top: 10px;
	padding: 13px 52px;
	font-size: 17px;
	font-weight: 700;
	letter-spacing: 2px;
	color: #fff;
	background: #222;
	border: none;
	border-radius: 4px;
	cursor: pointer;
	transition: background .18s ease;
}

.contact-us-form .btn-submit:hover {
	background: #0056b3;
}

/* ===== 响应式 ===== */
@media (max-width: 1000px) {
	.contact-us-page .main {
		flex-direction: column;
		gap: 40px;
	}

	.sidebar {
		flex: none;
		width: 100%;
	}

	.contact-us-form {
		max-width: 100%;
	}

	.contact-us-page {
		padding: 40px 24px 60px;
	}

	.contact-us-title {
		font-size: 32px;
	}
}