/* Part-3 三卡片模块样式 */
.part3-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 20px;
}

.part3-cards-section {
    display: flex;
    gap: 30px;
    justify-content: center;
    align-items: stretch;
}

.part3-card {
    position: relative;
    width: 350px;
    height: 450px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 10px 30px rgba(94, 121, 100, 0.3);
}

.part3-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(137, 238, 167, 0.205);
}

/* 默认状态：图片 + 标题 */
.part3-card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.part3-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, rgba(3, 85, 51, 0.24), transparent);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.part3-card-title-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 2;
}

/* Hover状态：白底 + icon + 标题 + 内容 */
.part3-card-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.151);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 3;
}

.part3-card-icon {
    font-size: 60px;
    color: #667eea;
    margin-bottom: 20px;
    transform: scale(0);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.1s;
}

.part3-card-title {
    font-size: 28px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.part3-card-description {
    font-size: 16px;
    line-height: 1.6;
    color: #666;
    margin-bottom: 25px;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.part3-card-button {
    background: #56B14A;
    color: white;
    padding: 12px 30px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s;
    text-decoration: none;
    display: inline-block;
}

.part3-card-button:hover {
    transform: translateY(18px) scale(1.05);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Hover状态激活 */
.part3-card:hover .part3-card-image {
    opacity: 0;
    transform: scale(1.1);
}

.part3-card:hover .part3-card-title-overlay {
    opacity: 0;
    transform: translateY(20px);
}

.part3-card:hover .part3-card-content {
    opacity: 1;
    transform: translateY(0);
}

.part3-card:hover .part3-card-icon {
    transform: scale(1);
}

.part3-card:hover .part3-card-title {
    opacity: 1;
    transform: translateY(0);
}

.part3-card:hover .part3-card-description {
    opacity: 1;
    transform: translateY(0);
}

.part3-card:hover .part3-card-button {
    opacity: 1;
    transform: translateY(0);
}

/* 卡片背景图片 */
.part3-card-1 .part3-card-image {
    background-image: url("../images/other/card%20%281%29.jpg");
}

.part3-card-2 .part3-card-image {
    background-image: url("../images/other/card%20%282%29.jpg");
}

.part3-card-3 .part3-card-image {
    background-image: url("../images/other/card%20%283%29.jpg");
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .part3-cards-section {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    
    .part3-card {
        width: 100%;
        max-width: 400px;
    }
}

@media (max-width: 768px) {
    .part3-container {
        padding: 30px 15px;
    }
    
    .part3-card {
        height: 400px;
    }
    
    .part3-card-title-overlay {
        font-size: 20px;
    }
    
    .part3-card-title {
        font-size: 24px;
    }
    
    .part3-card-description {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .part3-cards-section {
        gap: 30px;
    }
    
    .part3-card {
        height: 350px;
    }
    
    .part3-card-title-overlay {
        font-size: 18px;
    }
    
    .part3-card-title {
        font-size: 22px;
    }
    
    .part3-card-description {
        font-size: 13px;
    }
}