/* 全局变量 */
:root {
    --iheir-primary: #0073aa;
    --iheir-primary-dark: #005a87;
    --iheir-text: #333;
    --iheir-bg: #fff;
    --iheir-gray: #f5f5f5;
}

/* ========== 粘性页脚布局修复（最终版） ========== */
/* 彻底修复：页脚底部空白区 - 使用Flexbox实现粘性页脚 */
html {
    height: 100% !important;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--iheir-text);
    background: var(--iheir-bg);
    line-height: 1.6;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
    flex-direction: column !important;
}

/* 页面主容器 - 强制Flex布局 */
#page,
.site,
.page-wrapper,
.wrapper {
    display: flex !important;
    flex-direction: column !important;
    min-height: 100vh !important;
    flex: 1 0 auto !important;
    width: 100% !important;
}

/* 内容区域 - 自动填充剩余空间 */
#content,
.site-content,
.content-area {
    flex: 1 0 auto !important;
    width: 100% !important;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 头部 */
.site-header {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.site-branding img {
    max-height: 50px;
    width: auto;
}
.main-navigation ul {
    list-style: none;
    display: flex;
    gap: 20px;
}
.main-navigation a {
    text-decoration: none;
    color: var(--iheir-text);
    font-weight: 500;
}
.main-navigation a:hover {
    color: var(--iheir-primary);
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

/* 首页 Hero */
.hero {
    background: linear-gradient(135deg, var(--iheir-primary), var(--iheir-primary-dark));
    color: white;
    text-align: center;
    padding: 100px 0;
}
.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}
.hero .btn {
    display: inline-block;
    background: white;
    color: var(--iheir-primary);
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 20px;
    transition: all 0.3s;
}
.hero .btn:hover {
    background: var(--iheir-primary-dark);
    color: white;
}

/* 服务区块 */
.services {
    padding: 80px 0;
    text-align: center;
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.service-item {
    padding: 20px;
    background: var(--iheir-gray);
    border-radius: 8px;
    transition: transform 0.3s;
}
.service-item:hover {
    transform: translateY(-5px);
}
.service-item i {
    font-size: 40px;
    color: var(--iheir-primary);
    margin-bottom: 20px;
}
.service-item h3 {
    margin-bottom: 10px;
}

/* 按钮通用 */
.btn-primary-bg {
    background-color: var(--iheir-primary);
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}
.btn-primary-bg:hover {
    background-color: var(--iheir-primary-dark);
}

/* 文章页 */
.entry-header {
    margin-bottom: 20px;
}
.entry-meta {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}
.entry-content {
    margin-bottom: 30px;
}

/* ========== 分类/标签归档页网格布局 ========== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.grid-item {
    background: var(--iheir-bg);
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.grid-item .entry-content {
    padding: 20px;
}

.grid-item .entry-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.grid-item .entry-title a {
    text-decoration: none;
    color: var(--iheir-text);
}

.grid-item .entry-title a:hover {
    color: var(--iheir-primary);
}

.entry-summary {
    font-size: 0.9rem;
    line-height: 1.5;
}

.archive-header {
    text-align: center;
    margin-bottom: 40px;
}

.archive-title {
    font-size: 2rem;
    margin-bottom: 15px;
}

.archive-description {
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

/* 分页样式 */
.pagination {
    text-align: center;
    margin: 40px 0;
}

.pagination .page-numbers {
    display: inline-block;
    padding: 8px 12px;
    margin: 0 3px;
    border: 1px solid #ddd;
    border-radius: 4px;
    text-decoration: none;
    color: var(--iheir-text);
}

.pagination .page-numbers.current {
    background: var(--iheir-primary);
    color: #fff;
    border-color: var(--iheir-primary);
}

.pagination .page-numbers:hover:not(.current) {
    background: #f5f5f5;
}

/* 作品集网格布局 */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.portfolio-item {
    background: var(--iheir-bg);
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.portfolio-thumbnail img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.portfolio-content {
    padding: 20px;
}

.portfolio-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.portfolio-title a {
    text-decoration: none;
    color: var(--iheir-text);
}

.portfolio-title a:hover {
    color: var(--iheir-primary);
}

.portfolio-excerpt {
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 分享图标改为红色 */
.share-buttons a i,
.social_share_holder i,
.social-share i,
.share-icon,
.share-buttons .fab,
.share-buttons .fas,
.share-buttons .far,
.social_share_holder .fab,
.social_share_holder .fas,
.social_share_holder .far {
    color: #ff0000 !important;
}

.share-buttons a:hover i,
.social_share_holder a:hover i {
    color: #cc0000 !important;
}

/* ========== 菜单样式优化 ========== */
.main-navigation {
    position: relative;
}

.primary-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 30px;
}

.primary-menu li {
    position: relative;
}

.primary-menu a {
    display: block;
    text-decoration: none;
    padding: 10px 0;
    color: #333;
    transition: color 0.3s;
}

.primary-menu a:hover {
    color: var(--iheir-primary);
}

/* 有子菜单的项添加箭头指示 - 箭头在文字后面 */
.primary-menu li.menu-item-has-children > a {
    position: relative;
    padding-right: 5px;
}

.primary-menu li.menu-item-has-children > a:after {
    content: '\f0d7';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    display: inline-block;
    margin-left: 5px;
    font-size: 12px;
    vertical-align: middle;
}

/* 二级菜单样式 */
.primary-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-radius: 4px;
    padding: 10px 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.primary-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 三级菜单 */
.primary-menu .sub-menu .sub-menu {
    top: 0;
    left: 100%;
    margin-left: 5px;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
    margin-left: 15px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* 搜索按钮 */
.search-toggle {
    cursor: pointer;
    font-size: 18px;
    color: #333;
    transition: color 0.3s;
}

.search-toggle:hover {
    color: var(--iheir-primary);
}

/* 搜索弹窗 */
.search-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    display: none;
    justify-content: center;
    align-items: center;
}

.search-popup.active {
    display: flex;
}

.search-popup-content {
    position: relative;
    width: 90%;
    max-width: 600px;
}

.search-popup .search-form {
    display: flex;
    gap: 10px;
}

.search-popup .search-form input[type="search"] {
    flex: 1;
    padding: 15px;
    font-size: 18px;
    border: none;
    border-radius: 4px;
    background: #fff;
}

.search-popup .search-form button {
    padding: 15px 30px;
    background: var(--iheir-primary);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.search-popup .search-form button:hover {
    background: var(--iheir-primary-dark);
}

.search-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 30px;
    cursor: pointer;
}

/* ========== 桌面端菜单（宽度 > 768px） ========== */
@media (min-width: 769px) {
    .menu-toggle {
        display: none !important;
    }
    
    .main-navigation {
        position: static !important;
        width: auto !important;
        height: auto !important;
        background: transparent !important;
        box-shadow: none !important;
        padding: 0 !important;
        right: auto !important;
        overflow: visible !important;
    }
    
    .primary-menu {
        display: flex !important;
        flex-direction: row !important;
        gap: 30px !important;
    }
    
    .primary-menu li {
        border-bottom: none !important;
    }
    
    .primary-menu a {
        padding: 10px 0 !important;
    }
    
    /* 二级菜单横向布局 */
    .primary-menu .sub-menu {
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        min-width: 500px !important;
        background: #fff !important;
        box-shadow: 0 8px 25px rgba(0,0,0,0.15) !important;
        border-radius: 8px !important;
        padding: 20px !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transform: translateY(10px) !important;
        transition: all 0.3s ease !important;
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 20px 30px !important;
    }
    
    .primary-menu li:hover > .sub-menu {
        opacity: 1 !important;
        visibility: visible !important;
        transform: translateY(0) !important;
    }
    
    .primary-menu .sub-menu li {
        flex: 0 0 auto !important;
        min-width: 120px !important;
        border-bottom: none !important;
    }
    
    .primary-menu .sub-menu a {
        padding: 6px 12px !important;
        white-space: nowrap !important;
        font-size: 14px !important;
    }
    
    .primary-menu .sub-menu a:hover {
        transform: translateX(5px) !important;
    }
    
    .primary-menu .sub-menu .sub-menu {
        top: 0 !important;
        left: 100% !important;
        min-width: 400px !important;
        margin-left: 10px !important;
    }
}

/* ========== 移动端菜单（宽度 ≤ 768px） ========== */
@media (max-width: 768px) {
    /* 搜索弹窗样式 - 移动端正常显示 */
    .search-popup {
        display: none;
    }
    
    .search-popup.active {
        display: flex !important;
        z-index: 99999;
    }
    
    .search-popup-content {
        width: 90%;
        max-width: 400px;
        padding: 20px;
    }
    
    .search-popup .search-form input[type="search"] {
        font-size: 16px;
        padding: 12px;
    }
    
    .search-popup .search-form button {
        padding: 12px 20px;
        white-space: nowrap;
    }
    
    .search-close {
        top: -45px;
        font-size: 28px;
    }
    
    /* 确保Logo正常大小 */
    .site-branding img {
        max-height: 50px !important;
        width: auto !important;
    }
    
    /* 头部操作区域布局 */
    .header-actions {
        display: flex;
        align-items: center;
        gap: 15px;
    }
    
    /* 菜单按钮样式 */
    .menu-toggle {
        display: flex !important;
        align-items: center;
        gap: 5px;
        background: var(--iheir-primary);
        color: #fff;
        padding: 8px 15px;
        border-radius: 5px;
        font-size: 14px;
        pointer-events: auto !important;
        cursor: pointer !important;
    }
    
    .menu-toggle i {
        font-size: 16px;
    }
    
    .menu-text {
        font-weight: 500;
    }
    
    /* 搜索图标样式 */
    .search-toggle {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background: #f5f5f5;
        border-radius: 50%;
        color: #333;
        font-size: 14px;
        cursor: pointer;
    }
    
    .search-toggle:hover {
        background: var(--iheir-primary);
        color: #fff;
    }
    
    .main-navigation {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 100% !important;
        background: #fff !important;
        box-shadow: 0 0 20px rgba(0,0,0,0.2) !important;
        transition: transform 0.3s ease !important;
        z-index: 1000 !important;
        padding: 70px 20px 20px !important;
        overflow-y: auto !important;
        transform: translateX(-100%) !important;
    }
    
    .main-navigation.active {
        transform: translateX(0) !important;
    }
    
    /* 关闭按钮 */
    .menu-close-btn {
        position: absolute;
        top: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        background: #f5f5f5;
        border: none;
        border-radius: 50%;
        font-size: 20px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: background 0.3s;
        z-index: 1001;
    }
    
    .menu-close-btn:hover {
        background: #e0e0e0;
    }
    
    .primary-menu {
        flex-direction: column !important;
        gap: 0 !important;
        display: flex !important;
    }
    
    .primary-menu li {
        border-bottom: 1px solid #eee !important;
        position: relative;
    }
    
    /* 一级菜单链接 */
    .primary-menu > li > a {
        padding: 15px 50px 15px 0 !important;
        display: block !important;
        width: 100%;
        font-size: 16px;
        color: #333 !important;
        text-decoration: none !important;
    }
    
    /* 有子菜单的菜单项：显示小箭头 */
    .primary-menu li.menu-item-has-children > a:after {
        content: '\f078';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        position: absolute;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: #e8f4f8;
        border-radius: 6px;
        font-size: 12px;
        color: var(--iheir-primary);
        transition: all 0.3s ease;
        cursor: pointer;
        border: 1px solid var(--iheir-primary);
    }
    
    /* 箭头悬停效果 */
    .primary-menu li.menu-item-has-children > a:hover:after {
        background: var(--iheir-primary);
        color: #fff;
    }
    
    /* 展开状态下箭头旋转 */
    .primary-menu li.menu-item-has-children.submenu-open > a:after {
        transform: translateY(-50%) rotate(180deg);
        background: var(--iheir-primary);
        color: #fff;
    }
    
    /* 子菜单样式 */
    .primary-menu .sub-menu {
        position: static !important;
        min-width: auto !important;
        display: none !important;
        flex-direction: column !important;
        gap: 0 !important;
        padding: 0 0 0 15px !important;
        box-shadow: none !important;
        background: #f9f9f9 !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
    }
    
    /* 子菜单展开状态 */
    .primary-menu li.menu-item-has-children.submenu-open > .sub-menu {
        display: flex !important;
    }
    
    /* 二级菜单链接 */
    .primary-menu .sub-menu > li > a {
        padding: 12px 40px 12px 10px !important;
        font-size: 15px !important;
        color: #555 !important;
        background: #f9f9f9 !important;
    }
    
    /* 二级菜单的箭头（稍小） */
    .primary-menu .sub-menu li.menu-item-has-children > a:after {
        width: 35px !important;
        height: 35px !important;
        font-size: 11px;
        background: #e0e0e0;
        border-color: #999;
        color: #666;
    }
    
    .primary-menu .sub-menu li.menu-item-has-children.submenu-open > a:after {
        background: var(--iheir-primary);
        border-color: var(--iheir-primary);
        color: #fff;
    }
    
    /* 三级菜单样式 */
    .primary-menu .sub-menu .sub-menu {
        background: #f0f0f0 !important;
        padding-left: 10px !important;
    }
    
    .primary-menu .sub-menu .sub-menu > li > a {
        padding: 10px 35px 10px 20px !important;
        font-size: 14px !important;
        color: #777 !important;
        background: #f0f0f0 !important;
    }
    
    /* 三级菜单的箭头 */
    .primary-menu .sub-menu .sub-menu li.menu-item-has-children > a:after {
        width: 30px !important;
        height: 30px !important;
        font-size: 10px;
        background: #d5d5d5;
        border-color: #aaa;
        color: #888;
    }
}

/* ========== 文章页和作品集详情页图片样式修复 ========== */
.single .post-thumbnail,
.single-post .post-thumbnail,
.single-portfolio_page .post-thumbnail,
.single-portfolio .post-thumbnail {
    text-align: center;
    margin: 20px 0 30px;
    width: 100%;
}

.single .post-thumbnail img,
.single-post .post-thumbnail img,
.single-portfolio_page .post-thumbnail img,
.single-portfolio .post-thumbnail img {
    max-width: 100%;
    width: auto;
    height: auto !important;
    max-height: 500px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    display: inline-block;
}

.entry-content img,
.portfolio-content img {
    max-width: 100%;
    height: auto !important;
    display: block;
    margin: 20px auto;
    border-radius: 4px;
}

.entry-content .alignleft {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
}

.entry-content .alignright {
    float: right;
    margin-left: 20px;
    margin-bottom: 10px;
}

.entry-content .aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .single .post-thumbnail img,
    .single-portfolio_page .post-thumbnail img {
        max-height: 300px;
    }
    
    .entry-content .alignleft,
    .entry-content .alignright {
        float: none;
        margin: 10px auto;
        display: block;
    }
}

/* ========== 文章页侧边栏布局（侧边栏在右侧 - 强制修复版）========== */
/* 修复说明：确保桌面端侧边栏固定在右侧，不被挤到底部 */

/* 侧边栏布局容器 - 使用更具体的选择器确保优先级 */
.single .content-with-sidebar,
.single-post .content-with-sidebar {
    display: flex !important;
    flex-wrap: nowrap !important;
    gap: 40px !important;
    margin: 40px 0 !important;
    align-items: flex-start !important;
}

/* 主内容区域 */
.single .main-content,
.single-post .main-content {
    flex: 1 !important;
    min-width: 0 !important;
    width: auto !important;
}

/* 侧边栏区域 - 固定宽度，强制在右侧 */
.single .widget-area,
.single #secondary,
.single-post .widget-area,
.single-post #secondary {
    width: 320px !important;
    flex-shrink: 0 !important;
    flex-grow: 0 !important;
    position: relative !important;
    right: auto !important;
    top: auto !important;
}

/* 侧边栏内部小工具样式 */
.single .widget,
.single-post .widget {
    margin-bottom: 30px;
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
}

.single .widget-title,
.single-post .widget-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--iheir-primary);
    display: inline-block;
}

.single .widget ul,
.single-post .widget ul {
    list-style: none;
    padding: 0;
}

.single .widget ul li,
.single-post .widget ul li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.single .widget ul li:last-child,
.single-post .widget ul li:last-child {
    border-bottom: none;
}

.single .widget ul li a,
.single-post .widget ul li a {
    text-decoration: none;
    color: var(--iheir-text);
    transition: color 0.3s;
}

.single .widget ul li a:hover,
.single-post .widget ul li a:hover {
    color: var(--iheir-primary);
    padding-left: 5px;
}

/* 移动端响应式：屏幕小于992px时，侧边栏显示在底部 */
@media (max-width: 992px) {
    .single .content-with-sidebar,
    .single-post .content-with-sidebar {
        flex-wrap: wrap !important;
        flex-direction: column !important;
    }
    
    .single .widget-area,
    .single #secondary,
    .single-post .widget-area,
    .single-post #secondary {
        width: 100% !important;
        margin-top: 30px;
    }
}

/* ========== 相关文章样式修复（图片显示完整）========== */
.related-posts {
    margin: 40px 0 20px;
    clear: both;
}

.related-posts h3 {
    font-size: 20px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--iheir-primary);
    display: inline-block;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.related-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.related-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

/* 相关文章图片 - 修复显示不全问题 */
.related-item a {
    display: block;
    overflow: hidden;
}

.related-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.3s;
}

.related-item:hover img {
    transform: scale(1.05);
}

.related-item h4 {
    font-size: 15px;
    margin: 12px 15px 8px;
    line-height: 1.4;
}

.related-item h4 a {
    color: #333;
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-item h4 a:hover {
    color: var(--iheir-primary);
}

.related-date {
    display: block;
    margin: 0 15px 15px;
    font-size: 12px;
    color: #999;
}

/* 如果没有图片的占位符 */
.related-item .no-image {
    height: 180px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
}

/* 移动端相关文章 */
@media (max-width: 768px) {
    .related-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .related-item img {
        height: 200px;
    }
}

/* ========== 作品集详情页（无侧边栏 - 确保全宽显示）========== */
/* 作品集详情页不使用侧边栏，直接全宽显示内容 */
.single-portfolio_page .site-main .container,
.single-portfolio .site-main .container {
    max-width: 1000px;
}

/* 如果作品集详情页意外出现了侧边栏布局，强制取消 */
.single-portfolio_page .content-with-sidebar,
.single-portfolio .content-with-sidebar {
    display: block !important;
}

.single-portfolio_page .sidebar,
.single-portfolio .sidebar,
.single-portfolio_page .widget-area,
.single-portfolio .widget-area {
    display: none !important;
}

.single-portfolio_page .main-content,
.single-portfolio .main-content {
    width: 100% !important;
    max-width: 100% !important;
    flex: none !important;
}

/* ========== Satellite7 短码横排布局修复 ========== */
.three_columns,
.four_columns,
.two_columns_50_50,
.two_columns_33_66,
.two_columns_66_33,
.two_columns_75_25,
.two_columns_25_75 {
    width: 100%;
    clear: both;
}

.three_columns .column1,
.three_columns .column2,
.three_columns .column3,
.four_columns .column1,
.four_columns .column2,
.four_columns .column3,
.four_columns .column4,
.two_columns_50_50 .column1,
.two_columns_50_50 .column2,
.two_columns_33_66 .column1,
.two_columns_33_66 .column2,
.two_columns_66_33 .column1,
.two_columns_66_33 .column2,
.two_columns_75_25 .column1,
.two_columns_75_25 .column2,
.two_columns_25_75 .column1,
.two_columns_25_75 .column2 {
    float: left;
    margin-right: 2%;
}

/* 三列 */
.three_columns .column1,
.three_columns .column2,
.three_columns .column3 {
    width: 31.33%;
}
.three_columns .column3 { margin-right: 0; }

/* 四列 */
.four_columns .column1,
.four_columns .column2,
.four_columns .column3,
.four_columns .column4 {
    width: 23.5%;
}
.four_columns .column4 { margin-right: 0; }

/* 两列 50/50 */
.two_columns_50_50 .column1,
.two_columns_50_50 .column2 {
    width: 49%;
}
.two_columns_50_50 .column2 { margin-right: 0; }

/* 两列 33/66 */
.two_columns_33_66 .column1 { width: 31.33%; }
.two_columns_33_66 .column2 { width: 66.66%; margin-right: 0; }

/* 两列 66/33 */
.two_columns_66_33 .column1 { width: 66.66%; }
.two_columns_66_33 .column2 { width: 31.33%; margin-right: 0; }

/* 两列 75/25 */
.two_columns_75_25 .column1 { width: 74%; }
.two_columns_75_25 .column2 { width: 24%; margin-right: 0; }

/* 两列 25/75 */
.two_columns_25_75 .column1 { width: 24%; }
.two_columns_25_75 .column2 { width: 74%; margin-right: 0; }

.column_inner {
    padding-right: 20px;
}

.three_columns .column3 .column_inner,
.four_columns .column4 .column_inner,
.two_columns_50_50 .column2 .column_inner,
.two_columns_33_66 .column2 .column_inner,
.two_columns_66_33 .column2 .column_inner,
.two_columns_75_25 .column2 .column_inner,
.two_columns_25_75 .column2 .column_inner {
    padding-right: 0;
}

/* 移动端竖排 */
@media (max-width: 768px) {
    .three_columns .column1,
    .three_columns .column2,
    .three_columns .column3,
    .four_columns .column1,
    .four_columns .column2,
    .four_columns .column3,
    .four_columns .column4,
    .two_columns_50_50 .column1,
    .two_columns_50_50 .column2,
    .two_columns_33_66 .column1,
    .two_columns_33_66 .column2,
    .two_columns_66_33 .column1,
    .two_columns_66_33 .column2,
    .two_columns_75_25 .column1,
    .two_columns_75_25 .column2,
    .two_columns_25_75 .column1,
    .two_columns_25_75 .column2 {
        width: 100%;
        float: none;
        margin-right: 0;
        margin-bottom: 20px;
    }
    .column_inner {
        padding-right: 0;
    }
}

/* ========== 修复内容区与页脚重叠 ========== */
/* 确保短码容器正确清除浮动 */
.three_columns:after,
.four_columns:after,
.two_columns_50_50:after,
.two_columns_33_66:after,
.two_columns_66_33:after,
.two_columns_75_25:after,
.two_columns_25_75:after,
.row:after,
.clearfix:after {
    content: '';
    display: table;
    clear: both;
}

/* 防止列容器溢出 */
.three_columns,
.four_columns,
.two_columns_50_50,
.two_columns_33_66,
.two_columns_66_33,
.two_columns_75_25,
.two_columns_25_75 {
    overflow: hidden;
    margin-bottom: 30px;
}

/* ========== 修复 WPBakery 页面生成器样式 ========== */
/**
 * 核心原则：尊重 WPBakery 的 Flexbox 布局，不强制覆盖
 * 仅在必要的地方修复显示问题，避免破坏原有横向排版
 */

/* 1. 行容器：确保正常显示 */
.vc_row,
.wpb_row {
    display: block !important;
    width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    position: relative !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* 2. Flex 行布局 - 关键修复：保持横向排列 */
.vc_row.vc_row-flex,
.vc_row-flex,
.wpb_row.vc_row-flex {
    display: -webkit-box !important;
    display: -ms-flexbox !important;
    display: flex !important;
    -webkit-box-orient: horizontal !important;
    -webkit-box-direction: normal !important;
    -ms-flex-direction: row !important;
    flex-direction: row !important;
    -ms-flex-wrap: wrap !important;
    flex-wrap: wrap !important;
    width: 100% !important;
    clear: both !important;
    box-sizing: border-box !important;
}

/* 3. 列容器 - 关键修复：恢复正确的宽度计算 */
.vc_column_container,
.wpb_column {
    display: block !important;
    position: relative !important;
    visibility: visible !important;
    opacity: 1 !important;
    min-height: 1px !important;
    box-sizing: border-box !important;
}

/* 4. Flex 行内的列 - 核心修复：正确解析 WPBakery 的列宽 */
.vc_row-flex > .vc_column_container,
.vc_row-flex > .wpb_column,
.vc_row.vc_row-flex > .vc_column_container,
.vc_row.vc_row-flex > .wpb_column,
.wpb_row.vc_row-flex > .wpb_column {
    float: none !important;
    clear: none !important;
    -webkit-box-flex: 0 !important;
    -ms-flex: 0 0 auto !important;
    flex: 0 0 auto !important;
    max-width: 100% !important;
}

/* 5. 处理带宽度类的列 - WPBakery 标准列宽 */
/* 1/2 = 50% */
.vc_col-sm-6,
.wpb_column.vc_col-sm-6 {
    width: 50% !important;
    -ms-flex-preferred-size: 50% !important;
    flex-basis: 50% !important;
}

/* 1/3 = 33.33% */
.vc_col-sm-4,
.wpb_column.vc_col-sm-4 {
    width: 33.333333% !important;
    -ms-flex-preferred-size: 33.333333% !important;
    flex-basis: 33.333333% !important;
}

/* 2/3 = 66.66% */
.vc_col-sm-8,
.wpb_column.vc_col-sm-8 {
    width: 66.666667% !important;
    -ms-flex-preferred-size: 66.666667% !important;
    flex-basis: 66.666667% !important;
}

/* 1/4 = 25% */
.vc_col-sm-3,
.wpb_column.vc_col-sm-3 {
    width: 25% !important;
    -ms-flex-preferred-size: 25% !important;
    flex-basis: 25% !important;
}

/* 3/4 = 75% */
.vc_col-sm-9,
.wpb_column.vc_col-sm-9 {
    width: 75% !important;
    -ms-flex-preferred-size: 75% !important;
    flex-basis: 75% !important;
}

/* 1/1 = 100% (全宽列) */
.vc_col-sm-12,
.wpb_column.vc_col-sm-12 {
    width: 100% !important;
    -ms-flex-preferred-size: 100% !important;
    flex-basis: 100% !important;
}

/* 6. 列内部容器 */
.vc_column-inner,
.wpb_wrapper {
    position: relative !important;
    width: 100% !important;
    box-sizing: border-box !important;
}

.vc_column_container > .vc_column-inner {
    padding-left: 15px !important;
    padding-right: 15px !important;
}

/* 7. 非 Flex 行的列（使用 float 的传统布局） */
.vc_row:not(.vc_row-flex) > .vc_column_container,
.vc_row:not(.vc_row-flex) > .wpb_column,
.wpb_row:not(.vc_row-flex) > .wpb_column {
    float: left !important;
    clear: none !important;
}

/* 8. 内联行布局修复 */
.vc_row.vc_inner {
    margin-left: -15px !important;
    margin-right: -15px !important;
}

.vc_row.vc_inner .vc_column_container {
    padding-left: 15px !important;
    padding-right: 15px !important;
}

/* 9. 清除浮动 */
.vc_row:after,
.wpb_row:after {
    content: '' !important;
    display: table !important;
    clear: both !important;
}

/* 10. 确保内容可见 */
.vc_row *,
.vc_column_container *,
.wpb_column * {
    visibility: visible !important;
}

/* 11. 修复产品详情页（single-portfolio_page）的特殊情况 */
.single-portfolio_page .entry-content .vc_row,
.single-portfolio_page .entry-content .wpb_row {
    margin-bottom: 20px !important;
}

.single-portfolio_page .entry-content .vc_row.vc_row-flex {
    display: -webkit-box !important;
    display: -ms-flexbox !important;
    display: flex !important;
    -webkit-box-align: start !important;
    -ms-flex-align: start !important;
    align-items: flex-start !important;
}

/* ========== 页脚样式（完整版） ========== */
.site-footer {
    background: #1a1a2e;
    color: #aaa;
    padding: 60px 0 20px;
    font-size: 14px;
    line-height: 1.6;
    margin-top: auto;
    flex-shrink: 0;
    width: 100%;
}

/* 四栏布局 */
.footer-widgets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* 页脚列 */
.footer-column {
    overflow: hidden;
}

/* 页脚标题 */
.footer-widget-title {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.footer-widget-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--iheir-primary);
}

/* Logo 区域 */
.footer-logo {
    margin-bottom: 15px;
}

.footer-logo img {
    max-height: 50px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-site-title {
    color: #fff;
    font-size: 1.5rem;
    margin: 0;
}

/* 公司简介文字 */
.footer-desc p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: #aaa;
}

/* 认证图标 */
.footer-cert {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.footer-cert img {
    height: 40px;
    width: auto;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-cert img:hover {
    opacity: 1;
}

/* 底部菜单 */
.footer-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-menu li {
    margin-bottom: 10px;
}

.footer-menu a {
    color: #aaa;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.footer-menu a:hover {
    color: var(--iheir-primary);
    transform: translateX(5px);
}

/* 联系方式 */
.footer-contact-info p {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-contact-info i {
    width: 20px;
    color: var(--iheir-primary);
    margin-top: 3px;
}

.footer-contact-info a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-contact-info a:hover {
    color: var(--iheir-primary);
}

/* 社交媒体 */
.footer-social {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    transition: all 0.3s;
}

.footer-social a:hover {
    background: var(--iheir-primary);
    transform: translateY(-3px);
}

/* 二维码 */
.footer-qrcode {
    text-align: center;
}

.footer-qrcode p {
    margin-bottom: 10px;
    color: #aaa;
}

.footer-qrcode img {
    max-width: 120px;
    height: auto;
    border-radius: 8px;
}

/* 底部版权区 - 彻底修复底部空白 */
.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    padding-top: 20px;
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* 彻底消除页脚底部所有可能的空白 */
.site-footer {
    margin-bottom: 0 !important;
    padding-bottom: 20px !important;
}

/* 确保body和html没有底部间距 */
html, body {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
}

/* 确保页面容器没有底部间距 */
#page, .site {
    margin-bottom: 0 !important;
}

/* 确保没有任何元素在页脚后产生空白 */
body > *:last-child {
    margin-bottom: 0 !important;
}

/* 确保footer是body的最后一个子元素且无间距 */
body > footer,
body > .site-footer {
    margin-bottom: 0 !important;
    padding-bottom: 20px !important;
}

.copyright {
    color: #aaa;
}

.footer-icp a,
.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-icp a:hover,
.footer-links a:hover {
    color: var(--iheir-primary);
}

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

/* 页脚响应式 */
@media (max-width: 992px) {
    .footer-widgets {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .footer-widgets {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* ========== 问题3修复：返回顶部按钮修复和位置调整 ========== */
#back-to-top,
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--iheir-primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 9999;
    box-shadow: 0 4px 15px rgba(0, 115, 170, 0.3);
}

#back-to-top.show,
.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover,
.back-to-top:hover {
    background: var(--iheir-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 115, 170, 0.4);
}

#back-to-top i,
.back-to-top i {
    font-size: 18px;
}

/* 移动端返回顶部按钮位置调整 */
@media (max-width: 768px) {
    #back-to-top,
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}