.pro_detail {
    display: flex;
    gap: 25px;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.pro_detail_left {
    flex-shrink: 0;
    width: 280px;
}
.pro_carousel {
    position: relative;
    width: 100%;
    height: 380px;
    background: #f8f8f8;
    border-radius: 6px;
    border: 1px solid #eee;
    overflow: hidden;
}
.pro_carousel_slides {
    display: flex;
    transition: transform 0.5s ease;
    height: 100%;
}
.pro_carousel_slide {
    flex-shrink: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pro_carousel_slide img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
.pro_carousel_prev,
.pro_carousel_next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 35px;
    height: 35px;
    background: rgba(0,0,0,0.5);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}
.pro_carousel_prev:hover,
.pro_carousel_next:hover {
    background: rgba(0,0,0,0.7);
}
.pro_carousel_prev {
    left: 10px;
}
.pro_carousel_next {
    right: 10px;
}
.pro_carousel_dots {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}
.pro_carousel_dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}
.pro_carousel_dot.active {
    background: #fff;
    width: 20px;
    border-radius: 5px;
}
.pro_detail_right {
    flex: 1;
    min-width: 0;
}
.pro_detail_title {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.4;
}
.pro_detail_specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}
.pro_detail_specs .spec_item {
    width: 100%;
    display: flex;
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
}
.pro_detail_specs .spec_item:last-child {
    border-bottom: none;
}
.pro_detail_specs .spec_label {
    width: 100px;
    color: #888;
    font-weight: 500;
    font-size: 14px;
    flex-shrink: 0;
}
.pro_detail_specs .spec_value {
    color: #333;
    font-size: 14px;
}
.pro_detail_desc {
    margin-top: 15px;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    overflow: hidden;
}
.pro_detail_desc img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px 0;
}
.pro_detail_desc p {
    margin-bottom: 15px;
}
.pro_detail_desc h3 {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}
/* 双列参数布局 */
.pro_detail_specs_double {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}
.pro_detail_specs_double .spec_item {
    display: flex;
    padding: 8px 0;
}
.pro_detail_specs_double .spec_label {
    width: 80px;
    color: #888;
    font-weight: 500;
    font-size: 14px;
    flex-shrink: 0;
}
.pro_detail_specs_double .spec_value {
    color: #333;
    font-size: 14px;
}
 .spec_more {
        margin-top: 8px;
    }
    .spec_more a {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        color: #999;
        text-decoration: none;
        font-size: 13px;
        transition: color 0.3s ease;
    }
    .spec_more a:hover {
        color: #666;
    }
    .spec_more .more-icon {
        font-size: 12px;
        transition: transform 0.3s ease;
    }
    .spec_more a.expanded .more-icon {
        transform: rotate(90deg);
    }


     .menu-item {
                            position: relative;
                            line-height: 24px;
                            padding-right: 20px;
                            padding-left: 10px;
                        }
                        .menu-arrow {
                            position: absolute;
                            right: 20px;
                            top: 5px;
                            cursor: pointer;
                            line-height: 24px;
                            font-size: 12px;
                            color: #999;
                        }
                        .menu-sons {
                            display: none;
                            padding-left: 20px;
                        }
                        .menu-sons.show {
                            display: block;
                        }
                        .menu-link {
                            color: #666;
                            text-decoration: none;
                            font-size: 13px;
                        }
                        .menu-link:hover,
                        .menu-link.hover {
                            color: #e74c3c;
                        }