/* 轮播图容器 */
.sd-banner-container {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    margin: 0 auto;
}

.sd-banner {
    position: relative;
    width: 100%;
    height: 100%;
}

.sd-banner-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: scale(1.3);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
    transition: none;
}

.sd-banner-item.active {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
    transition: opacity 0.8s ease, transform 6s ease;
}

/* 左右切换按钮 */
.sd-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.4s ease;
    z-index: 10;
    opacity: 0;
}

.sd-banner-container:hover .sd-nav-btn {
    opacity: 1;
}

.sd-nav-btn:hover {
    background: rgba(0, 0, 0, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.sd-nav-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.sd-nav-btn.prev {
    left: 40px;
}

.sd-nav-btn.next {
    right: 40px;
}

.sd-nav-btn i {
    font-size: 28px;
    color: rgba(0, 0, 0, 0.7);
}

/* 指示器 */
.sd-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.sd-indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.sd-indicator.active {
    background: rgba(0, 0, 0, 0.6);
    transform: scale(1.2);
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .sd-nav-btn {
        width: 50px;
        height: 50px;
    }
    
    .sd-nav-btn i {
        font-size: 24px;
    }
}

@media (max-width: 768px) {
    .sd-banner-container {
        height: 450px;
    }
    
    .sd-nav-btn {
        width: 45px;
        height: 45px;
    }
    
    .sd-nav-btn i {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .sd-banner-container {
        height: 350px;
    }
    
    .sd-nav-btn {
        width: 38px;
        height: 38px;
        left: 15px;
    }
    
    .sd-nav-btn.next {
        right: 15px;
    }
    
    .sd-nav-btn i {
        font-size: 18px;
    }
    
    .sd-indicators {
        bottom: 20px;
    }
    
    .sd-indicator {
        width: 12px;
        height: 12px;
    }
}