/* 重置样式 */


.container {
	max-width: 1320px;
	margin: 0 auto;
	/* padding: 0 20px; */
}


/* 主标题区域 */
.hero {
	background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
	padding: 120px 0 80px;
}



/* 案例分类导航 */
.case-nav {
	width: 100%;
	/* padding: 20px 0; */
	position: absolute;
	top: 565px;
	margin: 0 auto;
	/* left: auto; */
	z-index: 1;

	/* border-bottom: 1px solid #eee; */
}

.case-box {
	/* margin: 0 auto; */

}

.case-tabs {
	display: flex;
	background: #fff;
	/* gap: 40px; */
	padding: 20px;
	justify-content: space-evenly;
	box-shadow: 0px 1px 10px 3px rgba(1, 116, 255, 0.11);
	border-radius: 4px 4px 4px 4px;
	border: 1px solid #FFFFFF;
}

.tab {
	text-decoration: none;
	font-family: "AT-85";
	font-weight: normal;
	font-size: 24px;
	color: #333333;
	padding: 30px;
	border-bottom: 3px solid transparent;
	transition: all 0.5s;
	font-style: normal;
}

.tab:hover {
	background-color: #F3F3F3;
}

.tab.active {
	padding: 30px 30px 22px 30px;
	color: #0173FF;
	border-bottom: 8px solid #009FFF;

	/* border-bottom-color: linear-gradient( 90deg, #0073FF 0%, #009FFF 100%); */
}


/* 案例展示区域 */
.cases {

	padding: 160px 0 60px;
	background: #fff;
}

.cases-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 32px;
}

.case-item-box {
	height: 360px;
	margin-bottom: 30px;
}

.case-item {
	background: #fff;
	border-radius: 10px;
	/* overflow: hidden; */
	padding: 20px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
	transition: transform 0.3s, box-shadow 0.3s;
	display: flex;
	flex-direction: column;

	align-items: center;
}

.case-item:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);

}

.case-image {
	/* height: 200px;
	width: 266px; */
	background: #f5f5f5;
	border-radius: 4px;
	margin-bottom: 10px;
}

.case-image img {
	width: 100%;
	height: 100%;
	/* object-fit: cover; */
}

.case-item .featured {
	background: #2196F3;
	color: white;
}

.case-item .featured .case-actions {
	/* display: block; */
	display: flex;
	gap: 10px;
	margin-top: 15px;
}



.case-info {
	/* padding: 20px; */
}

.case-info h3 {
	font-weight: normal;
	font-size: 16px;
	margin-bottom: 15px;
	font-family: "AT-75";
}

.case-info .case-title {
	color: #0073FF;

	font-size: 16px;
}

.case-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 15px;
}

.tag {
	background: #F6F6F8;
	color: #333333;
	padding: 4px 8px;
	border-radius: 4px;
	font-size: 12px;
}

.case-item .featured .tag {
	background: #F6F6F8;
}

.case-actions {
	/* display: flex; */
	align-items: center;
	justify-content: flex-end;
	display: none;
	width: 100%;
}

.btn-preview,
.btn-download {
	margin-left: 20px;
	padding: 8px 12px;
	width: 80px;
	height: 30px;
	border: none;
	background: #FFFFFF;
	color: #0073FF;
	font-family: "AT-85";
	border-radius: 4px;
	cursor: pointer;
	font-size: 12px;
	transition: background 0.3s;
}

.btn-preview:hover,
.btn-download:hover {
	border: 1px solid white;
	background: #009FFF;
	color: white;
	/* background: rgba(255,255,255,0.1); */
}

/* 响应式设计 */
@media(max-width:1153px) {
	.tab {
		font-size: 20px;
		padding: 20px;
	}

	.tab.active {
		padding: 20px 20px 12px 20px
	}
}

@media (max-width: 1024px) {
	.cases-grid {
		grid-template-columns: repeat(3, 1fr);
		gap: 20px;
	}
	.case-nav{
		top: 400px;
	}
	.cases{
		padding: 60px 0;
	}
	.tab {
		padding: 0;
	}

	.tab.active {
		padding: 0;
		border-bottom: 3px solid #009FFF;
	}

	.features {
		gap: 40px;
	}
}

@media (max-width: 768px) {
	
    .case-nav {
        top: 280px;
    }
	.cases{
		padding: 100px 0 60px;
	}
	.nav {
		gap: 20px;
		margin: 10px 0;
	}

	.hero {
		padding: 100px 0 60px;
	}

	.hero h1 {
		font-size: 32px;
	}

	.tab {
		font-size: 20px;
	}

	.case-tabs {
		flex-wrap: wrap;
		gap: 20px;
	}

	.cases-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 15px;
	}

	.form-group {
		flex-direction: column;
		gap: 15px;
	}

	.features {
		flex-wrap: wrap;
		gap: 30px;
	}

	.footer-content {
		flex-direction: column;
		gap: 40px;
	}

	.footer-links {
		/* flex-direction: column; */
		gap: 30px;
	}
}

@media (max-width: 480px) {
	.tab {
		font-size: 18px;
		padding: 0;

	}
	.case-nav {
	    top: 280px;
	}
	.cases{
		padding: 140px 0 60px;
	}
	.tab.active {
		padding: 0;
		border-bottom: 3px solid #009FFF;
	}

	.cases-grid {
		grid-template-columns: 1fr;
		gap: 50px;
	}
	.case-item-box{
		margin-bottom: 80px;
	}
	.nav {
		gap: 20px !important;
		margin: 10px 0;
	}

	.hero h1 {
		font-size: 24px;
	}

	.cta-content h2 {
		font-size: 24px;
	}

	.features {
		flex-direction: column;
		align-items: center;
		gap: 20px;
	}
}