/* IP页面样式 - 响应式优化版本 */

/* 基础重置 */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    min-width: 320px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 清除浮动 */
.ip-clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* 英雄横幅区域 */
.ip-hero-banner {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    overflow: hidden;
}

.ip-hero-banner img {
    width: 100%;
    height: auto;
    min-height: 200px;
    object-fit: cover;
}

/* 主内容区域 */
.ip-main-content {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    padding: 20px;
    overflow: hidden;
}

/* 内容包装器 */
.ip-content-wrapper {
    width: 100%;
    max-width: 1201px;
    margin: 0 auto;
    overflow: hidden;
}

/* 导航区域 */
.ip-navigation {
    width: 25%;
    float: left;
    padding-right: 20px;
    margin-top: 17px;
}

/* 导航标题 */
.ip-nav-spacer {
    width: 100%;
    padding: 10px 0;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    border-bottom: 2px solid #ddd;
    margin-bottom: 20px;
}

/* 导航菜单容器 */
.ip-nav-menu {
    width: 100%;
    list-style: none;
    padding: 0;
    margin: 0;
}

/* 导航项目通用样式 */
.ip-nav-item {
    width: 100%;
    margin-bottom: 15px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ip-nav-item img {
    width: 100%;
    height: auto;
    filter: grayscale(100%);
    transition: all 0.3s ease;
}

/* 选中状态 - 彩色显示 */
.ip-nav-item.active img {
    filter: grayscale(0%);
}

/* 悬浮效果 - 浮起来并显示彩色 */
.ip-nav-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.ip-nav-item:hover img {
    filter: grayscale(0%);
    transform: scale(1.02);
}

/* 主图片区域 */
.ip-main-image {
    width: 75%;
    float: right;
    padding-left: 20px;
}

/* IP标题样式 */
.ip-main-image h1 {
    font-size: 28px;
    font-weight: bold;
    color: #333;
    margin: 0 0 20px 0;
    text-align: center;
    padding: 15px 0;
    border-bottom: 3px solid #ddd;
}

/* 内容介绍文本 */
.ip-content-spacer {
    width: 100%;
    padding: 20px 0;
    font-size: 16px;
    line-height: 1.6;
    text-align: justify;
    margin-bottom: 20px;
    background-color: #f9f9f9;
    padding: 15px;
    border-radius: 5px;
}

.ip-main-image img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* 平板设备适配 */
@media screen and (max-width: 1024px) {
    .ip-main-content {
        padding: 15px;
    }
    
    .ip-navigation {
        width: 30%;
    }
    
    .ip-main-image {
        width: 70%;
    }
    
    .ip-nav-spacer {
        font-size: 16px;
    }
    
    .ip-content-spacer {
        font-size: 14px;
        padding: 12px;
    }
}

/* 移动设备适配 */
@media screen and (max-width: 768px) {
    .ip-main-content {
        padding: 10px;
    }
    
    .ip-navigation {
        width: 100%;
        float: none;
        padding-right: 0;
        margin-bottom: 20px;
    }
    
    .ip-main-image {
        width: 100%;
        float: none;
        padding-left: 0;
    }
    
    .ip-main-image h1 {
        font-size: 24px;
        padding: 12px 0;
        margin-bottom: 15px;
    }
    
    .ip-nav-menu {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    
    .ip-nav-item {
        width: 48%;
        margin-bottom: 10px;
    }
    
    /* 移动端悬浮效果调整 */
    .ip-nav-item:hover {
        transform: translateY(-4px);
        box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    }
    
    .ip-nav-spacer {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .ip-content-spacer {
        font-size: 14px;
        padding: 15px;
        margin-bottom: 15px;
    }
}

/* 大屏幕优化 */
@media screen and (min-width: 1920px) {
    .ip-hero-banner,
    .ip-main-content {
        max-width: none;
    }
    
    .ip-content-wrapper {
        max-width: 1400px;
    }
}