/* 大学预科课程专用样式 - 避免与blog-programs冲突 */

/* 导航栏样式 - 遵循网站原有风格 */
.navbar-fixed-top {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1030;
    background-color: white !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 确保内容区域不被固定导航栏遮挡 */
.blog-content {
    /* margin-top: 140px; */
}

/* 导航栏链接样式 - 蓝色文字，悬浮红色 */
#main-menu .navbar-nav > li > a {
    font-weight: bold !important;
    transition: color 0.3s ease;
}

#main-menu .navbar-nav > li > a:hover,
#main-menu .navbar-nav > li > a:focus {
    color: rgb(212, 40, 94) !important;
    background-color: transparent !important;
}

/* 下拉菜单样式 - 符合网站原有风格 */
#main-menu .navbar-nav > li.dropdown > ul.dropdown-menu {
    background-color: #022169 !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175) !important;
    padding: 0 !important;
    min-width: 200px !important;
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    z-index: 1000 !important;
    float: left !important;
    margin: 2px 0 0 !important;
    list-style: none !important;
    background-clip: padding-box !important;
    display: none;
}

/* 下拉菜单显示样式 - 悬停和点击时显示 */
#main-menu .navbar-nav > li.dropdown.open > ul.dropdown-menu,
#main-menu .navbar-nav > li.dropdown:hover > ul.dropdown-menu {
    display: block !important;
}

/* 简单的CSS悬停显示规则 */
#main-menu .dropdown:hover .dropdown-menu {
    display: block !important;
}

#main-menu .navbar-nav > li.dropdown > ul.dropdown-menu > li > a {
    color: white !important;
    padding: 12px 20px !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
    font-size: 14px !important;
    display: block !important;
    clear: both !important;
    font-weight: normal !important;
    line-height: 1.42857143 !important;
    white-space: nowrap !important;
    background: transparent !important;
}

#main-menu .navbar-nav > li.dropdown > ul.dropdown-menu > li:last-child > a {
    border-bottom: none !important;
}

#main-menu .navbar-nav > li.dropdown > ul.dropdown-menu > li > a:hover,
#main-menu .navbar-nav > li.dropdown > ul.dropdown-menu > li > a:focus {
    background-color: #022169 !important;
    color: white !important;
    text-decoration: none !important;
}

/* 导航栏品牌样式 */
.navbar-brand img {
    transition: all 0.3s ease;
}

/* 响应式导航栏调整 */
@media (max-width: 768px) {
    .navbar-fixed-top {
        position: relative;
    }
    
    .blog-content {
        margin-top: 0;
    }
    
    /* 移动端下拉菜单样式 */
    .content-mobile .navbar-collapse {
        background-color: #022169;
        margin-top: 0px;
        border-radius: 4px;
        display: none; /* 默认隐藏 */
        visibility: visible;
    }
    
    /* 确保移动设备上折叠菜单在show类存在时显示 */
    .content-mobile .navbar-collapse.show {
        display: block !important;
    }
    
    .content-mobile .navbar-nav > li > a {
        color: white !important;
        padding: 10px 15px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .content-mobile .navbar-nav > li:last-child > a {
        border-bottom: none;
    }
}

/* 确保下拉菜单在打开状态下显示 */
#main-menu .navbar-nav > li.dropdown.open > ul.dropdown-menu {
    display: block !important;
}

/* 内容主区域 */
.content-main {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 顶部图片与文字 */
.precollege-hero {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    margin-bottom: 30px;
    border-radius: 8px;
}

.precollege-hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.precollege-hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(to right, rgba(2, 33, 105, 0.8), rgba(2, 33, 105, 0.5));
    display: flex;
    align-items: center;
}

.precollege-hero-content {
    padding: 30px;
    max-width: 600px;
    color: white;
}

.precollege-hero-title {
    color: #022169;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.precollege-hero-subtitle {
    font-size: 18px;
    line-height: 1.5;
    margin: 0;
}

/* 项目介绍横幅 */
.precollege-intro {
    background-color: #f8f9fa;
    padding: 30px;
    margin: 30px 0;
    border-radius: 8px;
}

.precollege-intro p {
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    margin: 0;
    max-width: 800px;
    margin: 0 auto;
}

/* 项目列表网格 */
.precollege-programs-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 30px;
    margin: 40px 0;
}

/* 项目卡片 */
.precollege-program-card {
  display: flex;

    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.precollege-program-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.precollege-program-card-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.precollege-program-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.precollege-program-card:hover .precollege-program-image {
    transform: scale(1.05);
}

.precollege-program-card-content {
    padding: 20px;
}

.precollege-program-title {
    color: #022169;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}

.precollege-program-description {
    color: #333;
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 15px;
}

.precollege-program-link {
    display: inline-block;
    border: 1px solid #d4285b;
    color: #d4285b;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    line-height: 100%;
    position: relative;
    padding: 5px 10px;
}

.precollege-program-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #d4285b;
    transition: width 0.3s ease;
}

.precollege-program-link:hover:after {
    width: 100%;
}
.precollege-program-link:hover {
    color: #d4285b;
}

/* 比较与体验区域 */
.precollege-links-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin: 40px 0;
}
.precollege-links-section::before {
  display: none;
}

.precollege-link-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.precollege-link-card::before,
.precollege-link-card::after {
  display: none;
}


.precollege-link-card:hover {
    background-color: #e9ecef;
}

.precollege-link-title {
    color: #022169;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}

.precollege-link-description {
    color: #333;
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 15px;
}

.precollege-link {
    display: inline-block;
    color: #d4285b;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: color 0.3s ease;
}

.precollege-link:hover {
    color: #d4285b;
}

/* 招生录取 */
.precollege-admissions {
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    margin-top: 40px;
}

.precollege-admissions-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.precollege-admissions-description {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 25px;
    max-width: 600px;
    margin: 0 auto 25px;
}

.precollege-admissions-btn {
    display: inline-block;
    background-color: #d4285b;
    color: white;
    padding: 14px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.precollege-admissions-btn:hover {
    background-color: #022169;
    border: 2px solid white;
    color: white;
}

/* 响应式设计 - 适配不同屏幕尺寸 */
@media (max-width: 992px) {
    .precollege-programs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .precollege-links-section {
        grid-template-columns: 1fr;
    }
    
    .precollege-hero {
        height: 350px;
    }
    
    .precollege-hero-title {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .precollege-programs-grid {
        grid-template-columns: 1fr;
    }
    
    .precollege-hero {
        height: 300px;
    }
    
    .precollege-hero-content {
        padding: 20px;
    }
    
    .precollege-hero-title {
        font-size: 32px;
    }
    
    .precollege-hero-subtitle {
        font-size: 16px;
    }
    
    .precollege-intro, .precollege-program-card-content, .precollege-link-card {
        padding: 20px;
    }
    
    .precollege-admissions {
        padding: 30px 20px;
    }
    
    .precollege-admissions-title {
        font-size: 28px;
    }
    
    .precollege-admissions-btn {
        padding: 12px 24px;
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .precollege-hero {
        height: 250px;
    }
    
    .precollege-hero-title {
        font-size: 28px;
    }
    
    .precollege-hero-subtitle {
        font-size: 14px;
    }
    
    .precollege-program-title, .precollege-link-title {
        font-size: 20px;
    }
    
    .precollege-program-description, .precollege-link-description, .precollege-admissions-description {
        font-size: 14px;
    }
    
    .precollege-admissions-title {
        font-size: 24px;
    }
}

/* 兼容性样式 - 确保跨浏览器表现一致 */
.precollege-hero, .precollege-intro, .precollege-programs-grid, .precollege-links-section, .precollege-admissions {
    position: relative;
}

/* 打印样式 */
@media print {
    .precollege-hero {
        height: 200px;
    }
    
    .precollege-admissions {
        background-color: white;
        color: #022169;
        border: 1px solid #022169;
    }
    
    .precollege-admissions-btn {
        display: none;
    }
}