/*
Theme Name: 学习开发博客
Theme URI: https://your-domain.com
Author: 你的名字
Author URI: https://your-domain.com
Description: 专为学习开发打造的WordPress主题，三栏布局、支持文章分页和资料上传
Version: 2.4
License: GPL v2 or later
Text Domain: dev-learning
*/
/* 全局重置 + 强制居中基础 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body {
    width: 100%;
    overflow-x: hidden; /* 防止横向滚动 */
    margin: 0 !important;
    padding: 0 !important;
    display: block;
    max-width: 2020px; /* 总宽度：左侧栏250px + 间距20px + 中间内容1750px */
}
:root {
    /* 主题色定义 - 科技感蓝绿渐变 */
    --primary: #2563eb;
    --secondary: #0d9488;
    --light: #f8fafc;
    --dark: #1e293b;
    --gray: #64748b;
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --hover-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
}
body {
    font-family: "Inter", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    color: var(--dark);
    background-color: #f1f5f9;
    font-size: 16px;
    max-width: 2020px; /* 和总宽度一致 */
    width: 100%;
    padding-left: 270px !important; /* 给左侧分类栏留出空间，覆盖全局padding:0 !important; */
}
/* 页眉样式 - 渐变背景 + 精致阴影（电脑端完整展示） */
.site-header {
    background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
    color: white;
    padding: 1.5rem 0 !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 999;
    width: 100%;
    display: flex;
    justify-content: center; /* 页眉内容居中 */
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 2000px !important; /* 和页面宽度一致 */
    margin: 0 auto !important; /* 强制居中 */
    padding: 0 2rem !important;
    width: 100%;
}
.site-title a {
    color: white;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.nav-menu {
    list-style: none;
    display: flex;
    gap: 2rem;
}
.nav-menu a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 1.05rem;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}
.nav-menu a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: white;
    transition: var(--transition);
}
.nav-menu a:hover {
    color: white;
}
.nav-menu a:hover::after {
    width: 100%;
}
/* 搜索框样式 - 电脑端完整展示 */
.search-form {
    display: flex;
    gap: 0.5rem;
}
.search-input {
    padding: 0.6rem 1rem;
    border: none;
    border-radius: 8px;
    width: 220px;
    font-size: 0.95rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}
.search-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
    width: 240px;
}
.search-btn {
    padding: 0.6rem 1.2rem;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}
.search-btn:hover {
    background-color: white;
    color: var(--primary);
}

/* 上传按钮样式 */
.upload-btn {
    background: #1f2937; /* 黑色背景 */
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.upload-btn:hover {
    background: #111827; /* 深黑色 */
    transform: translateY(-2px);
}
/* 三栏布局样式 - 电脑端强制居中 + 完整展示 */
.site-content {
    display: flex;
    gap: 2rem;
    padding: 2rem 0 !important;
    max-width: 1750px !important; /* 减去左侧栏的宽度，保持总宽度一致 */
    margin: 0 auto !important; /* 强制居中 */
    min-height: calc(100vh - 220px);
    width: 100%;
}
.main-content {
    flex: 1; /* 占据剩余空间，自适应宽度 */
    padding: 0 1rem;
}
/* 左侧边栏样式 */
.sidebar-left {
    width: 250px; /* 固定宽度250px */
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow) !important;
    height: fit-content;
    position: fixed; /* 固定在视口左侧 */
    top: 100px;
    left: 20px; /* 距离视口左侧20px，和padding-left的270px对应（250px+20px） */
    z-index: 998; /* 确保在内容上方，不被遮挡 */
}
/* 右侧边栏样式 */
.sidebar-right {
    flex: 0 0 250px; /* 固定宽度250px，不拉伸不压缩 */
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow) !important;
    height: fit-content;
    position: sticky;
    top: 100px;
    margin-left: 1rem; /* 增加和中间内容区域的间距 */
}
/* 首页样式升级 - 电脑端完整展示渐变+卡片 */
.home-intro {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%) !important;
    color: white;
    padding: 3rem 2rem;
    border-radius: 16px;
    margin-bottom: 2rem;
    text-align: center;
    box-shadow: var(--card-shadow) !important;
    max-width: 100%;
}
.home-intro h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}
.home-intro p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}
.latest-articles h3 {
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}
/* 文章卡片样式 - 电脑端强制展示3D动效+阴影 */
.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
    width: 100%;
}
.article-item {
    background: white !important;
    border-radius: 16px !important;
    padding: 1.8rem;
    box-shadow: var(--card-shadow) !important;
    transition: var(--transition) !important;
    border: 1px solid #f0f4f9;
}
.article-item:hover {
    transform: translateY(-5px) !important;
    box-shadow: var(--hover-shadow) !important;
}
.article-title a {
    color: var(--dark);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 600;
    transition: var(--transition);
    line-height: 1.4;
}
.article-title a:hover {
    color: var(--primary);
}
.article-excerpt {
    margin: 1rem 0;
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}
.article-meta {
    color: #94a3b8;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #f0f4f9;
}
/* 查看全部按钮样式 - 电脑端完整展示渐变+阴影 */
.latest-articles .view-all-btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 500;
    margin: 1rem 0;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2) !important;
}
.latest-articles .view-all-btn:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3) !important;
}
/* 分页样式升级 - 电脑端完整展示 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    margin: 3rem 0;
    width: 100%;
}
.pagination a, .pagination span {
    padding: 0.8rem 1.2rem;
    background-color: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    text-decoration: none;
    color: var(--gray);
    transition: var(--transition);
    font-weight: 500;
}
.pagination a:hover {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}
.pagination .current {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}
/* 资料页面样式升级 - 电脑端完整展示 */
.resource-upload, .resource-list {
    background: white !important;
    padding: 2rem;
    border-radius: 16px !important;
    box-shadow: var(--card-shadow) !important;
    margin-bottom: 2rem;
    border: 1px solid #f0f4f9;
}
.resource-upload h3, .resource-list h3 {
    font-size: 1.3rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}
.resource-upload form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.resource-upload input[type="text"], .resource-upload input[type="file"] {
    padding: 0.8rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
}
.resource-item {
    padding: 1.2rem 1rem;
    border-bottom: 1px solid #f0f4f9;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}
.resource-item:hover {
    background-color: #f8fafc;
    border-radius: 8px;
}
.resource-item:last-child {
    border-bottom: none;
}
.resource-item a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.resource-item a:hover {
    color: var(--secondary);
}
/* 侧边栏样式升级 - 电脑端完整展示 */
.widget {
    margin-bottom: 2rem;
}
.widget-title {
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}
.widget ul {
    list-style: none;
    gap: 0.8rem;
    display: flex;
    flex-direction: column;
}
.widget ul li a {
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}
.widget ul li a:hover {
    color: var(--primary);
    transform: translateX(5px);
}
/* 分类列表样式 */
.category-widget .category-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.category-widget .category-item {
    position: relative;
}
.category-widget .category-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}
.category-widget .category-toggle:hover {
    color: var(--primary);
}
.category-widget .category-arrow {
    font-size: 0.7rem;
    color: var(--gray);
    transition: var(--transition);
    transform: rotate(0deg);
}
.category-widget .category-posts {
    list-style: none;
    margin-left: 0.8rem;
    padding-left: 0.8rem;
    border-left: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    margin-top: 0.3rem;
}
.category-widget .category-post-item {
    padding: 0.2rem 0;
}
.category-widget .post-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}
.category-widget .post-link:hover {
    color: var(--secondary);
    text-decoration: underline;
}
.category-widget .no-posts {
    color: var(--gray);
    font-size: 0.9rem;
    padding: 0.2rem 0;
}
/* 单篇文章样式升级 - 电脑端完整展示 */
.single-article {
    background: white !important;
    padding: 2.5rem;
    border-radius: 16px !important;
    box-shadow: var(--card-shadow) !important;
    width: 100%;
}
.single-article h1 {
    font-size: 2rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}
.article-content {
    margin: 2rem 0;
    line-height: 1.8;
    color: var(--dark);
    font-size: 1.05rem;
}
.article-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1.5rem 0;
    box-shadow: var(--card-shadow);
}
.article-tags {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #f0f4f9;
}
.article-tags a {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background-color: #f0f4f9;
    color: var(--primary);
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.85rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}
.article-tags a:hover {
    background-color: var(--primary);
    color: white;
}
/* 页脚样式升级 - 电脑端完整展示 */
.site-footer {
    background-color: var(--dark);
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    padding: 3rem 2rem;
    margin-top: 3rem;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.site-footer p {
    font-size: 0.95rem;
}
/* 响应式适配优化（修复移动端内容靠右问题，兼容所有浏览器） */
@media (max-width: 768px) {
    html, body {
        max-width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        direction: ltr !important; /* 强制文本从左到右，兼容所有浏览器 */
        text-align: left !important; /* 强制文本左对齐 */
    }
    
    body {
        padding-left: 0 !important; /* 移动端去掉左侧padding */
        direction: ltr !important;
        text-align: left !important;
    }
    
    .site-header {
        justify-content: flex-start !important; /* 移动端页眉内容左对齐，不居中 */
        align-items: flex-start !important;
        direction: ltr !important;
        width: 100vw !important; /* 强制占满整个视口宽度 */
    }
    
    .site-content {
        flex-direction: column;
        padding: 1rem !important;
        max-width: 100vw !important; /* 强制占满整个视口宽度 */
        margin: 0 !important; /* 移动端去掉强制居中margin */
        direction: ltr !important;
        text-align: left !important;
    }
    
    .sidebar-left, .sidebar-right {
        position: static;
        margin-top: 1.5rem;
        left: 0; /* 移动端重置左侧位置 */
        width: 100% !important; /* 移动端左侧栏宽度100% */
        direction: ltr !important;
        text-align: left !important;
    }
    
    .header-inner {
        flex-direction: column !important; /* 强制垂直排列，确保布局正确 */
        gap: 1.5rem;
        padding: 0 1rem !important;
        align-items: flex-start !important; /* 确保内容左对齐，不靠右 */
        width: 100vw !important; /* 强制占满整个视口宽度 */
        direction: ltr !important;
        text-align: left !important;
        margin: 0 !important;
    }
    
    .nav-menu {
        gap: 1.5rem;
        flex-direction: row !important; /* 强制水平排列，避免垂直排列 */
        flex-wrap: wrap;
        justify-content: flex-start !important; /* 导航栏左对齐，不靠右 */
        width: 100% !important;
        direction: ltr !important;
        text-align: left !important;
    }
    
    .search-form {
        width: 100% !important;
        direction: ltr !important;
        text-align: left !important;
    }
    
    .search-input {
        width: 100% !important;
        direction: ltr !important;
        text-align: left !important;
    }
    
    .home-intro {
        padding: 2rem 1rem;
        direction: ltr !important;
        text-align: left !important;
    }
    
    .home-intro h2 {
        font-size: 1.8rem;
        direction: ltr !important;
        text-align: left !important;
    }
    
    .single-article {
        padding: 1.5rem;
        direction: ltr !important;
        text-align: left !important;
    }
    
    /* 重置移动端强制居中样式，避免内容紧凑在右侧 */
    .latest-articles,
    .all-articles,
    .resources-page,
    .page-content {
        max-width: 100vw !important; /* 强制占满整个视口宽度 */
        margin: 0 !important;
        width: 100% !important;
        padding: 0 1rem;
        direction: ltr !important;
        text-align: left !important;
    }
    
    /* 强制所有元素左对齐，兼容所有浏览器 */
    * {
        direction: ltr !important;
        text-align: left !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
}
/* 强制修复所有可能的左偏问题（兜底） */
.latest-articles,
.all-articles,
.resources-page,
.page-content {
    max-width: 2000px !important;
    margin: 0 auto !important;
    width: 100%;
    padding: 0 1rem;
}
/* 强制所有容器居中 */
.container,
.wrap,
#page,
.site {
    max-width: 2000px !important;
    margin: 0 auto !important;
    width: 100%;
}