/* 基础样式
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    min-height: 100vh;
    padding: 2rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
} */

/* 卡片布局 */
.card-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
    margin-bottom: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transform-style: preserve-3d;
    cursor: pointer;
    overflow: hidden;
    position: relative;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.card-header {
    border-bottom: 2px solid #eee;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-title {
    color: #333;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    font-size: 33px;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: hsla(273, 25%, 60%, 0.861);
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    font-size: 20px;
    font-weight: bold;
}

.card-paragraph {
    color: #000000;
    font-family: 'Times New Roman', Times, serif;
    font-size: 17.5px;
    margin-left: 5px;
    margin-bottom: 5px;
}

.card-content {
    max-height: 150px;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    /* 增加过渡时间并统一缓动函数 */
    will-change: max-height;
    /* 优化性能 */
}

.card-content.expanded {
    max-height: 1000px;
}

.read-more {
    color: hsla(273, 25%, 60%, 0.861);
    text-align: center;
    display: block;
    margin-top: 1rem;
    font-weight: bold;
    cursor: pointer;
}

.read-more:hover {
    color: hsla(273, 45%, 80%, 0.861);
    transition: all 0.3s ease;
    transform: scale(1.05);
    text-shadow: 0 0 1px hsla(273, 45%, 80%, 0.861);
}

/* 标签样式 */
.tag {
    display: inline-block;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    background: hsla(273, 25%, 60%, 0.861);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin: 0.45rem 0.3rem;
}

.tag:hover {
    background-color: hsla(273, 45%, 80%, 0.861);  /* 深蓝色 */
    transform: scale(1.05);
    box-shadow: 0 0 10px hsla(273, 45%, 80%, 0.861);
    transition: all 0.3s ease;
}

.description {
    font-family: 'Times New Roman', Times, serif;
    font-size: 17px;
    line-height: 1.65;
    text-align: justify;
    margin: 10px 15px;
}

.card-content img {
    display: block;
    max-width: 80%;
    max-height: 200px;
    width: auto;
    height: auto;
    margin: 1rem auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .card-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .card-container {
        grid-template-columns: 1fr;
    }
}