/* ============================================
   四季卡片 Hover 特效（独立样式）
   春=绿、夏=红、秋=紫、冬=蓝
============================================ */

/* 基础卡片保持不变，只增强 hover 效果 */
.feature-card {
    transition: all 0.3s ease;
    border: 1px solid #333;
}

/* ========== 春季 - 绿色 ========== */
.feature-card-spring:hover {
    border-color: #22c55e;
    box-shadow: 0 0 25px rgba(34, 197, 94, 0.35);
    transform: translateY(-6px);
}

.feature-card-spring:hover .feature-icon {
    color: #22c55e;
}


/* ========== 夏季 - 红色 ========== */
.feature-card-summer:hover {
    border-color: #ef4444;
    box-shadow: 0 0 25px rgba(239, 68, 68, 0.35);
    transform: translateY(-6px);
}

.feature-card-summer:hover .feature-icon {
    color: #ef4444;
}


/* ========== 秋季 - 紫色 ========== */
.feature-card-autumn:hover {
    border-color: #a855f7;
    box-shadow: 0 0 25px rgba(168, 85, 247, 0.35);
    transform: translateY(-6px);
}

.feature-card-autumn:hover .feature-icon {
    color: #a855f7;
}


/* ========== 冬季 - 蓝色 ========== */
.feature-card-winter:hover {
    border-color: #3b82f6;
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.35);
    transform: translateY(-6px);
}

.feature-card-winter:hover .feature-icon {
    color: #3b82f6;
}