html{
    background-color:#fcfafa;
}
img{
    display:block;
    margin:10px auto 0px auto;    
}
body{
    width:1900px; 
}

h1{
    font: size 80px;
    font-weight: bold;
    text-align:left;
    margin:20px 0 20px 100px;
    padding: 20px 20px 20px 0;
    color:#3c3c3c;
}
li{
    font-size:20px;
    margin:10px 0 0 100px;
    line-height:3;
    letter-spacing:1px;
}
li::marker{color:#3c3c3c}

h5{
    color:#7aa0a690;
    padding: 0px 0px 0px 0px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 50px;
}

    .header h1 {
        font-size: 2.5rem;
        color: #2c3e50;
        margin-bottom: 15px;
    }

    .header p {
        font-size: 1.1rem;
        color: #7f8c8d;
        max-width: 600px;
        margin: 0 auto;
        line-height: 1.6;
    }

/* 图片网格布局 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 60px;
    margin-bottom: 50px;
}

/* 图片卡片样式 */
.image-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

/* 图片容器 */
.image-wrapper {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    background: linear-gradient(45deg, #f0f0f0, #f8f8f8);
}

    .image-wrapper img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

.image-card:hover .image-wrapper img {
    transform: scale(1.05);
}

/* 标题和描述区域 - 在图片下方 */
.card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-title {
    text-align: center;
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 6px;
    font-weight: 600;
    line-height: 1.4;
}

.card-description {
    font-size: 1.2rem;
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* 标签样式 */
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.tag {
    padding: 5px 12px;
    background: #f1f3f5;
    color: #495057;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 分隔线样式 */
.separator {
    height: 1px;
    background: linear-gradient(to right, transparent, #e9ecef, transparent);
    margin: 30px 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 95%;
    }
}

@media (max-width: 992px) {
    .image-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 576px) {
    .image-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .image-wrapper {
        height: 180px;
    }
}
 #zt1{
    font-size:26px;
    color:#3c3c3c;
}
#zt2{
    font-size:20px;
    color:#605f62;
}