/*
Theme Name: 科技·商业·生活
Description: 修复图片粘连，按钮正常显示在外侧 + 下拉菜单 + 数字分页
Version: 3.8
*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}
body {
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}
a {
    text-decoration: none;
    color: #2d5caf;
    transition: all 0.3s;
}
a:hover {
    color: #1a3d7e;
}
.container {
    width: 92%;
    max-width: 1400px;
    margin: 0 auto;
}

/* 顶部固定导航栏 */
.site-header {
    background: #ffffff;
    padding: 14px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 999;
}
.header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.site-title {
    font-size: 22px;
    font-weight: 600;
    color: #2d5caf;
}
.nav-menu {
    display: flex;
    list-style: none;
    gap: 28px;
}
.nav-menu li {
    position: relative;
}
.nav-menu li a {
    font-size: 15px;
    color: #333;
    font-weight: 500;
}
.nav-menu li a:hover {
    color: #2d5caf;
}

/* 下拉菜单 */
.nav-menu li ul.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    list-style: none;
    min-width: 160px;
    border: 1px solid #eee;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: none;
    z-index: 999;
}
.nav-menu li ul.sub-menu li a {
    padding: 8px 16px;
    font-size: 14px;
}
.nav-menu li:hover > ul.sub-menu {
    display: block;
}

.menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* 首页内容区 */
.content-area {
    padding: 40px 0;
}

/* 轮播外层容器（给按钮提供定位父级） */
.slider-outer {
    width: 61.33%;
    margin: 0 auto 35px;
    position: relative;
}

/* 轮播容器：恢复overflow:hidden，隐藏多余图片 */
.top-slider {
    overflow: hidden;
}
.slider-wrap {
    display: flex;
    transition: transform 0.7s ease-in-out;
}
.slider-item {
    flex: 0 0 100%;
    padding: 0;
}
.slider-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 10px;
    display: block;
}

/* 轮播按钮：父级是slider-outer，正常显示在外侧 */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.75);
    color: #fff;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}
.slider-btn.prev {
    left: -60px;
}
.slider-btn.next {
    right: -60px;
}

/* 文章卡片网格布局 */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 26px;
}
.article-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0,0,0,0.05);
    transition: all 0.3s;
}
.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.article-thumb {
    width: 100%;
    height: 190px;
    object-fit: cover;
}
.article-content {
    padding: 20px;
}
.cat-tag {
    display: inline-block;
    padding: 3px 8px;
    background: #eef5ff;
    color: #2d5caf;
    font-size: 12px;
    border-radius: 4px;
    margin-bottom: 8px;
}
.article-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.45;
}
.article-meta {
    font-size: 12px;
    color: #888;
    margin-bottom: 12px;
}
.article-excerpt {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}
.read-more {
    display: inline-block;
    margin-top: 12px;
    font-size: 13px;
    padding: 6px 11px;
    background: #f0f5ff;
    border-radius: 6px;
}

/* 分页样式 */
.pagination {
    grid-column: 1/-1;
    text-align: center;
    margin: 40px 0 10px;
}
.pagination .page-numbers {
    display: inline-block;
    padding: 8px 14px;
    margin: 0 4px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}
.pagination .current {
    background: #2d5caf;
    color: #fff;
    border-color: #2d5caf;
}
.pagination a:hover .page-numbers {
    background: #f0f5ff;
}

/* 专利详情页面样式 */
.single-article {
    background: #fff;
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.05);
}
.single-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 18px;
    text-align: center;
}
.single-meta {
    text-align: center;
    font-size: 14px;
    color: #888;
    margin-bottom: 28px;
}
.single-content {
    font-size: 16px;
    line-height: 1.9;
    color: #333;
}
.single-content p {
    margin-bottom: 18px;
}
.single-content h2, .single-content h3 {
    margin: 26px 0 14px;
    color: #2d5caf;
}

/* 页脚 */
.site-footer {
    background: #fff;
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: #666;
    margin-top: 50px;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.05);
}

/* 手机移动端全自动适配 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    .menu-btn {
        display: block;
    }
    .article-grid {
        grid-template-columns: 1fr;
    }
    .single-article {
        padding: 22px;
    }
    .single-title {
        font-size: 22px;
    }
    /* 移动端缩小轮播按钮 */
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    .slider-btn.prev {
        left: -40px;
    }
    .slider-btn.next {
        right: -40px;
    }
}