/* 轮播图样式 */
.slider-section {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.slider-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.slide.active {
    opacity: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.slide-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
}

.slide-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.slide-btn {
    display: inline-block;
    background-color: #4a6ee0;
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.slide-btn:hover {
    background-color: #3a5bc7;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.slider-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.slider-dot.active {
    background-color: white;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
    z-index: 10;
}

.slider-arrow:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.slider-arrow.prev {
    left: 20px;
}

.slider-arrow.next {
    right: 20px;
}

/* 内容区域样式 */
.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
    padding-top: 60px;
}

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

.section-subtitle {
    font-size: 1.2rem;
    color: #7f8c8d;
}

/* 通用卡片网格布局 - 合并样式 */
.card-grid,
.why-choose-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding-bottom: 60px;
}

.card-item, .why-choose-card {
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.card-item:hover,
.why-choose-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.icon-container,
.why-choose-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background-color: #eef2ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4a6ee0;
}

.icon-container i,
.why-choose-icon i {
    font-size: 1.8rem;
}

.card-title,
.why-choose-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.card-description,
.why-choose-description {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 特定部分背景色样式 */
.services-section {
    background-color: #f8f9fa;
}

.why-choose-section {
    background-color: white;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .why-choose-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .slider-section {
        height: 400px;
    }
    
    .slide-title {
        font-size: 2rem;
    }
    
    .slide-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .section-header {
        padding-top: 40px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding-bottom: 40px;
    }
    
    .card-item {
        width: 100%;
        max-width: 280px;
        padding: 20px;
        margin: 0 auto;
    }
    
    .why-choose-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .why-choose-card {
        padding: 20px;
    }
    
    .slider-section {
        height: 350px;
    }
    
    .slider-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    .slider-section {
        height: 300px;
    }
    
    .slide-title {
        font-size: 1.8rem;
    }
    
    .slide-subtitle {
        font-size: 0.9rem;
    }
    
    .slide-btn {
        padding: 10px 25px;
        font-size: 1rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .card-item {
        padding: 15px;
        max-width: 100%;
    }
}