/* 活动中心页面样式 */
.activity-banner {
    background: linear-gradient(135deg, var(--orange), #FF9D33);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    color: var(--white);
    margin-bottom: 30px;
}
.activity-banner h2 {
    font-size: 28px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.banner-icon {
    width: 32px;
    height: 32px;
    filter: brightness(0) invert(1);
}
.activity-banner p {
    font-size: 14px;
    opacity: 0.9;
}
.activity-card {
    background: var(--white);
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}
.activity-card h3 {
    color: var(--dark);
    font-size: 18px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.activity-card .activity-content {
    color: var(--gray-dark);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 15px;
}
.activity-rules {
    background: var(--gray-light);
    border-radius: 6px;
    padding: 15px;
    font-size: 13px;
    color: var(--gray-dark);
}
.activity-rules h4 {
    color: var(--dark);
    margin-bottom: 10px;
    font-size: 14px;
}
.activity-rules ul {
    list-style: disc;
    padding-left: 20px;
}
.activity-rules li {
    margin-bottom: 5px;
}
.product-combo {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 20px;
}
.combo-item {
    background: var(--gray-light);
    border-radius: 6px;
    padding: 15px;
    text-align: center;
}
.combo-item .price {
    color: var(--orange);
    font-size: 18px;
    font-weight: bold;
    margin: 10px 0;
}
.combo-item .original-price {
    color: var(--gray-dark);
    font-size: 12px;
    text-decoration: line-through;
}
@media screen and (max-width: 768px) {
    .product-combo {
        grid-template-columns: 1fr;
    }
}