/* 案例展示样式 */


/* Banner样式 */
.banner {
    position: relative;
    width: 100%;
    overflow: hidden;
}

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

.banner-slide {
    position: absolute; /* 绝对定位 */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.banner-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}

.banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* 指示器样式 */
.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    padding: 0 15px;
    height: 30px;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 20px;
    z-index: 20;
}

.banner-indicator {
    width: 12px;
    height: 12px;
    margin: 0 6px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.banner-indicator.active {
    background-color: #fff;
    transform: scale(1.2);
}

/* 设置首张幻灯片显示，确保banner有高度 */
.banner-slide:first-child {
    position: relative;
    opacity: 1;
    visibility: visible;
}

.cases {
    padding: 60px 0;
}

/* 二级导航样式 */
.case-nav {
    margin: 30px 0;
    text-align: center;
    background-color: #f0f0f0;
    padding: 15px 0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.case-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.case-nav li {
    margin: 10px 15px;
}

.case-nav a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
    font-size: 18px;
    transition: all 0.3s ease;
    padding: 10px 20px;
    border-radius: 4px;
    display: inline-block;
}

.case-nav a:hover,
.case-nav a.active {
    color: #fff;
    background-color: var(--secondary-color);
}

/* 案例网格样式 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.case-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.case-img {
    width: 100%;
    height: 0;
    padding-bottom: 66.67%; /* 3:2比例 */
    position: relative;
}

.case-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-item h3 {
    font-size: 18px;
    margin: 15px;
    text-align: center;
}

.case-item p {
    padding: 0 15px 15px;
    text-align: center;
    color: #666;
}

/* 响应式设计 */
@media screen and (max-width: 1055px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-nav {
        padding: 20px 0;
    }

    .case-nav li {
        display: block;
        margin: 10px 0;
    }
    
    .case-nav a {
        width: 100%;
        text-align: center;
        padding: 8px 15px;
        font-size: 16px;
    }
}

/* 2K屏幕适配 */
@media screen and (min-width: 2000px) {
    .case-nav a {
        font-size: 20px;
        padding: 12px 25px;
    }
    
    .case-item h3 {
        font-size: 22px;
    }
    
    .case-item p {
        font-size: 16px;
    }
    
    .modal-content {
        max-width: 1500px !important;
    }
    
    .modal-title {
        font-size: 28px;
    }
    
    .modal-desc {
        font-size: 18px;
    }
}

/* 4K屏幕适配 */
@media screen and (min-width: 3000px) {
    .case-nav a {
        font-size: 22px;
        padding: 15px 30px;
    }
    
    .case-item h3 {
        font-size: 24px;
    }
    
    .case-item p {
        font-size: 18px;
    }
    
    .modal-content {
        max-width: 1900px !important;
    }
    
    .modal-title {
        font-size: 32px;
    }
    
    .modal-desc {
        font-size: 20px;
    }
}

.pagination {
    text-align: center;
    margin: 30px 0;
}

.pagination a {
    display: inline-block;
    padding: 10px 15px;
    margin: 0 5px;
    text-decoration: none;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    transition: background-color 0.3s, color 0.3s;
}

.pagination a:hover {
    background-color: var(--secondary-color);
    color: #fff;
}

.pagination a.active {
    background-color: var(--secondary-color);
    color: #fff;
    border: none;
}

/* 弹出框样式 */
.case-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    margin: 0;
    padding: 20px;
    width: 95%;
    max-width: 1000px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 10px;
    font-size: 30px;
    font-weight: bold;
    color: #666;
    cursor: pointer;
    transition: color 0.3s;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 20px 0;
}

.modal-img {
    width: 100%;
    max-height: 700px;
    object-fit: contain;
    border-radius: 4px;
    margin-bottom: 20px;
}

.modal-title {
    text-align: center;
    font-size: 24px;
    margin-bottom: 15px;
    color: #333;
}

.modal-desc {
    font-size: 16px;
    line-height: 1.6;
    color: #666;
}

/* 移动端样式 */
@media screen and (max-width: 1055px) {
    .modal-content {
        width: 95%;
    }

    .modal-title {
        font-size: 20px;
    }

    .modal-img {
        max-height: 300px;
    }
}

/* 移动端适配 */
@media screen and (max-width: 1055px) {
    
    .banner-slider {
        height: 100%;
    }
    
    .banner-slide {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        opacity: 0;
        visibility: hidden;
        transition: opacity 1.5s ease, visibility 1.5s ease;
    }
    
    .banner-slide.active {
        opacity: 1;
        visibility: visible;
    }
    
    .banner-img {
        height: 100%;
        object-fit: cover;
        object-position: center;
    }
    
    /* 移动端指示器样式 */
    .banner-indicators {
        bottom: 20px;
        padding: 0 10px;
        height: 24px;
    }
    
    .banner-indicator {
        width: 10px;
        height: 10px;
        margin: 0 4px;
    }
    
}

/* 面包屑导航样式 */
.breadcrumb {
    padding: 20px 0;
    margin-top: 30px;
    color: #666;
    font-size: 14px;
    border-bottom: 1px solid #eee;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--secondary-color);
}