/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* 公共容器 */
.gaosan8-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 公共头部导航 */
.gaosan8-header {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.gaosan8-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.gaosan8-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #333;
}

.gaosan8-logo img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.gaosan8-nav {
    display: flex;
    gap: 30px;
}

.gaosan8-nav a {
    font-size: 16px;
    color: #333;
    transition: color 0.3s;
}

.gaosan8-nav a:hover,
.gaosan8-nav a.active {
    color: #007bff;
}

/* 移动端菜单按钮 */
.gaosan8-mobile-menu {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* 公共底部 */
.gaosan8-footer {
    background: #333;
    color: #fff;
    padding: 40px 0 20px;
    margin-top: 50px;
}

.gaosan8-footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.gaosan8-footer-section h3 {
    margin-bottom: 15px;
    font-size: 18px;
}

.gaosan8-footer-section ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.gaosan8-footer-section a {
    color: #ccc;
    transition: color 0.3s;
}

.gaosan8-footer-section a:hover {
    color: #fff;
}

.gaosan8-footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    color: #999;
}

/* 侧边栏 */
.gaosan8-sidebar {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.gaosan8-sidebar-section {
    margin-bottom: 25px;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    border: 1px solid #f0f0f0;
}

.gaosan8-sidebar-section:last-child {
    margin-bottom: 0;
}

.gaosan8-sidebar-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #007bff;
}

.gaosan8-case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.gaosan8-case-item {
    display: block;
}

.gaosan8-case-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: 4px;
}

.gaosan8-article-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.gaosan8-article-item {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

.gaosan8-article-item:last-child {
    border-bottom: none;
}

.gaosan8-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.gaosan8-tag {
    padding: 4px 10px;
    background: #f0f0f0;
    border-radius: 15px;
    font-size: 14px;
    color: #666;
    transition: all 0.3s;
}

.gaosan8-tag:hover {
    background: #007bff;
    color: #fff;
}

/* 返回顶部按钮 */
.gaosan8-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #007bff;
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: all 0.3s;
}

.gaosan8-back-to-top:hover {
    background: #0056b3;
    transform: translateY(-5px);
}

/* 响应式设计 - 平板端 */
@media (max-width: 1024px) {
    .gaosan8-nav {
        gap: 20px;
        font-size: 15px;
    }

    .gaosan8-container {
        padding: 0 20px;
    }
}

/* 响应式设计 - 手机端 */
@media (max-width: 768px) {
    .gaosan8-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .gaosan8-nav.active {
        display: flex;
    }

    .gaosan8-mobile-menu {
        display: block;
    }

    .gaosan8-case-grid {
        grid-template-columns: 1fr;
    }

    .gaosan8-sidebar-section {
        margin-bottom: 20px;
        padding: 15px;
    }

    .gaosan8-footer-content {
        display: none; /* 隐藏整个footer内容区域 */
    }

    .gaosan8-footer-bottom {
        margin-top: 20px;
        padding-top: 20px;
        border-top: 1px solid #555;
    }

    .gaosan8-back-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
        font-size: 16px;
    }
}