/* 独立底部导航栏组件样式 */
/* 此CSS文件专门为其他页面的底部导航栏设计，不会影响页面的正常滚动 */

.footer-nav-component {
    width: 100%;
    background: #000;
    margin-top: auto; /* 自动推到页面底部 */
    position: relative;
    z-index: 10;
}

.footer-nav-container {
    width: 100%;
    min-height: 400px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    padding: 50px 0;
}

.footer-nav-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
}

.footer-nav-content {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 50px;
}

.footer-nav-columns {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-nav-column h3 {
    color: white;
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #007bff;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-nav-column ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-nav-column ul li {
    margin-bottom: 10px;
}

.footer-nav-column ul li a {
    color: #ccc;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-nav-column ul li a:hover {
    color: white;
}

.footer-nav-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid #333;
    margin-bottom: 20px;
}

.footer-nav-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-nav-links a {
    color: #ccc;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-nav-links a:hover {
    color: white;
}

.footer-nav-social {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ccc;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-nav-social-icon {
    color: #ccc;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s ease;
}

.footer-nav-social-icon:hover {
    color: white;
}

.footer-nav-copyright {
    text-align: center;
    color: #666;
    font-size: 12px;
    line-height: 1.6;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.footer-nav-copyright p {
    margin: 5px 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .footer-nav-content {
        padding: 0 30px;
    }
    
    .footer-nav-columns {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .footer-nav-content {
        padding: 0 20px;
    }
    
    .footer-nav-container {
        min-height: auto;
        padding: 30px 0;
    }
    
    .footer-nav-columns {
        display: flex;
        flex-direction: column;
        gap: 0;
        margin-bottom: 20px;
    }
    
    .footer-nav-column {
        margin-bottom: 20px;
        padding: 0;
        width: 100%;
        box-sizing: border-box;
    }
    
    .footer-nav-column h3 {
        font-size: 16px;
        margin-bottom: 15px;
        padding: 8px 0 6px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        position: relative;
    }
    
    .footer-nav-column h3::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 0;
        width: 25px;
        height: 2px;
        background: #007bff;
    }
    
    .footer-nav-column ul {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px 15px;
    }
    
    .footer-nav-column ul li {
        margin-bottom: 0;
    }
    
    .footer-nav-column ul li a {
        font-size: 13px;
        line-height: 1.3;
        padding: 5px 0;
        display: block;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .footer-nav-column ul li a:hover {
        color: #007bff;
        padding-left: 6px;
    }
    
    /* "联系我们"和"加入我们"特殊处理 */
    .footer-nav-column:last-child ul {
        grid-template-columns: 1fr;
        margin-bottom: 15px;
    }
    
    .footer-nav-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        padding: 15px 0;
    }
    
    .footer-nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .footer-nav-links a {
        font-size: 12px;
    }
    
    .footer-nav-social {
        font-size: 12px;
        justify-content: center;
    }
    
    .footer-nav-copyright {
        font-size: 11px;
        padding: 0 10px;
    }
}

@media (max-width: 480px) {
    .footer-nav-content {
        padding: 0 15px;
    }
    
    .footer-nav-column h3 {
        font-size: 15px;
    }
    
    .footer-nav-column ul li a {
        font-size: 12px;
    }
    
    .footer-nav-links a {
        font-size: 11px;
    }
    
    .footer-nav-social {
        font-size: 11px;
    }
    
    .footer-nav-copyright {
        font-size: 10px;
    }
}

/* 特殊样式：加入我们按钮 */
.footer-nav-join-us {
    margin-top: 15px;
    text-align: left;
}

.footer-nav-join-us h3 {
    font-size: 14px;
    padding: 10px 16px;
    margin-bottom: 0;
    border-bottom: none !important;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 6px;
    display: inline-block;
    color: white;
    font-weight: 500;
    box-shadow: 0 2px 6px rgba(0, 123, 255, 0.2);
}

.footer-nav-join-us h3::after {
    display: none !important;
}

/* 确保在其他页面中不会影响页面布局 */
.footer-nav-component * {
    box-sizing: border-box;
}

/* 防止与其他页面样式冲突 */
.footer-nav-component {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    color: #333;
}

/* 清除浮动 */
.footer-nav-component::after {
    content: "";
    display: table;
    clear: both;
}