* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
	background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
	color: #333;
	min-height: 100vh;
	padding: 20px;
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 20px;
}

header {
	text-align: center;
	margin-bottom: 20px;
	padding: 20px;
}

h1 {
	font-size: 2.5rem;
	margin-bottom: 10px;
	color: #2c3e50;
}

.description {
	font-size: 1.1rem;
	color: #7f8c8d;
	max-width: 800px;
	margin: 0 auto;
}

/* 响应式列表样式 */
.responsive-list {
	list-style: none;
	display: grid;
	gap: 20px;
	padding: 10px;
	transition: all 0.3s ease;
}

/* 默认移动端布局 - 1列 */
.responsive-list {
	grid-template-columns: 1fr;
}

/* 中等屏幕 - 2列 */
@media (min-width: 600px) {
	.responsive-list {
grid-template-columns: repeat(2, 1fr);
	}
}

/* 大屏幕 - 3列 */
@media (min-width: 900px) {
	.responsive-list {
grid-template-columns: repeat(3, 1fr);
	}
}

/* 超大屏幕 - 4列 */
@media (min-width: 1200px) {
	.responsive-list {
grid-template-columns: repeat(4, 1fr);
	}
}



/* 超大屏幕 - 4列 */
@media (min-width: 1200px) {
	.responsive-listA {
	grid-template-columns: repeat(2, 1fr);
	}
}



/* 响应式列表样式 */
.responsive-listA {
	list-style: none;
	display: grid;
	gap: 20px;
	padding: 10px;
	transition: all 0.3s ease;
}

.list-item {
	background: white;
	border-radius: 10px;
	padding: 25px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
	transition: transform 0.3s ease, box-shadow 0.3s ease;
	display: flex;
	flex-direction: column;
	position: relative;

}

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

.item-number {
	background: #3498db;
	color: white;
	width: 40px;
	height: 40px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: bold;
	margin-bottom: 15px;
}

.item-title {
	font-size: 1.3rem;
	margin-bottom: 10px;
	color: #2c3e50;
}

.item-content {
	color: #7f8c8d;
	line-height: 1.6;
}

/* 页面大小指示器 */
.size-indicator {
	position: fixed;
	bottom: 20px;
	right: 20px;
	background: rgba(0, 0, 0, 0.7);
	color: white;
	padding: 10px 15px;
	border-radius: 20px;
	font-size: 0.9rem;
	z-index: 100;
}

footer {
	text-align: center;
	margin-top: 5px;
	padding: 20px;
	color: #7f8c8d;
	font-size: 0.9rem;
}


.search-container {
	display: flex;
	justify-content: center;
	margin: 30px 0;
}

.search-box {
	display: flex;
	align-items: center;
	width: 80%;
	max-width: 700px;
	transition: all 0.3s ease;
}

.search-input {
	width: 100%;
	padding: 18px 25px;
	font-size: 18px;
	border: none;
	border-radius: 50px 0 0 50px;
	outline: none;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
	transition: all 0.3s ease;
}

.search-input:focus {
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
	transform: translateY(-2px);
}

.search-button {
	padding: 18px 30px;
	background: #ff3366;
	color: white;
	border: none;
	border-radius: 0 50px 50px 0;
	cursor: pointer;
	font-size: 18px;
	font-weight: 600;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
	transition: all 0.3s ease;
}

.search-button:hover {
	background: #ff4d7c;
	transform: translateY(-2px);
	box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.search-button:active {
	transform: translateY(0);
}


.img{
	position: absolute;
	top: 0px;
	right: 0px;
	width: 90px; 
	height:90px;
}