/*  
Theme Name: 简站wordpress主题-5857
Theme URI: http://www.jianzhanpress.com
Description: 简站wordpress主题
Version: 1.0
Author: 简站主题
Author URI: http://www.jianzhanpress.com
*/

/* 全局样式重置与基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", 微软雅黑, sans-serif;
}

body {
    background-color: #f5f5f7;
    color: #333;
    line-height: 1.6;
    /* 用户体验：优化字体渲染，提升可读性 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器优化：全屏宽度，内容区域固定1480px */
.container {
    width: 100%;
    margin: 0;
    padding: 0;
    background-color: #fff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 内容区域：固定1480px宽度，居中显示 */
.content-wrapper {
    width: 100%;
    max-width: 1480px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    flex: 1;
}

/* 头部样式 - 论坛风格（EEAT：增强品牌辨识度） */
header {
    background: linear-gradient(135deg, rgba(26, 35, 126, 0.9), rgba(49, 27, 146, 0.9));
    color: white;
    padding: 20px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('../images/aish_banner1.jpg');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    /* 用户体验：添加加载过渡 */
    transition: all 0.5s ease;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    position: relative;
    overflow: hidden;
    width: 100%;
}

/* 头部内容容器：固定1480px宽度 */
.header-content {
    width: 100%;
    max-width: 1480px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 1s ease;
}

header:hover::before {
    left: 100%;
}

.forum-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.forum-logo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #fff;
    object-fit: cover;
    /* EEAT：添加alt优化，提升图片语义 */
    alt: "夜上海论坛官方logo";
}

.forum-logo h1 {
    font-size: 28px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    /* 语义优化：标题包含核心关键词 */
}

.user-bar {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-bar a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    padding: 6px 12px;
    border-radius: 4px;
    background-color: rgba(255,255,255,0.2);
    transition: background-color 0.3s;
    /* 用户体验：添加无障碍属性 */
    role: "button";
    tabindex: "0";
}

.user-bar a:hover {
    background-color: rgba(255,255,255,0.3);
}

/* 导航栏样式 - 论坛风格（语义优化：导航链接包含核心语义） */
nav {
    background-color: rgba(40, 53, 147, 0.95);
    padding: 0;
    border-bottom: 2px solid #5c6bc0;
    /* 用户体验：粘性导航，提升操作便捷性 */
    position: sticky;
    top: 0;
    z-index: 999;
    width: 100%;
    display: flex;
    justify-content: center;
}

.nav-container {
    width: 100%;
    max-width: 1480px;
    display: flex;
    justify-content: flex-start;
}

.nav-main {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-main li {
    position: relative;
}

.nav-main a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    padding: 15px 25px;
    display: block;
    transition: background-color 0.3s;
    /* 语义优化：添加title属性，强化语义 */
}

.nav-main a:hover {
    background-color: #5c6bc0;
}

.nav-main .active a {
    background-color: #3f51b5;
    font-weight: bold;
}

/* 全屏Banner（用户体验+语义优化：替换原有轮播，全屏设计+核心语义） */
.fullscreen-banner {
    width: 100%;
    height: 400px;
    background: linear-gradient(rgba(26, 35, 126, 0.8), rgba(49, 27, 146, 0.8)), url('images/aish_banner1.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 40px;
    /* 用户体验：添加视差效果 */
    background-attachment: fixed;
}

.banner-content {
    flex: 1;
    text-align: center;
    color: #fff;
    max-width: 800px;
}

.banner-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
    color: #fff;
}

.banner-highlights {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.banner-highlights h3 {
    margin-top: 0;
    font-size: 18px;
    margin-bottom: 15px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.highlight-item i {
    font-size: 16px;
    color: #ff6b6b;
}

.banner-tags {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.banner-tags h3 {
    margin-top: 0;
    font-size: 18px;
    margin-bottom: 15px;
}

.banner-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.banner-tag-item {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 14px;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.banner-tag-item:hover {
    background: rgba(255, 107, 107, 0.8);
    transform: translateY(-2px);
}

@media (max-width: 992px) {
    .fullscreen-banner {
        flex-direction: column;
        text-align: center;
        height: auto;
        padding: 60px 20px;
    }
    
    .banner-content {
        padding-right: 0;
        margin-bottom: 30px;
        text-align: center;
    }
    
    .banner-right {
        width: 100%;
        max-width: 500px;
    }
}



.banner-content h2 {
    font-size: 42px;
    margin-bottom: 20px;
    text-shadow: 0 3px 6px rgba(0,0,0,0.3);
    /* 语义优化：标题包含核心关键词 */
}

.banner-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
    line-height: 1.8;
}

.banner-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #e91e63;
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(233, 30, 99, 0.3);
}

.banner-btn:hover {
    background-color: #c2185b;
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(233, 30, 99, 0.4);
}

/* 搜索栏（EEAT+用户体验：优化搜索功能，提升内容可达性） */
.search-bar {
    padding: 15px 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.search-container {
    width: 100%;
    max-width: 1480px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.search-box {
    display: flex;
    gap: 10px;
    width: 60%;
}

.search-box input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    /* 用户体验：添加placeholder语义优化 */
    placeholder: "上海交友、线下活动、打卡地推荐等内容搜索";
}

.search-box button {
    background-color: #3f51b5;
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-box button:hover {
    background-color: #303f9f;
}

.post-btn {
    background-color: #e91e63;
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.post-btn:hover {
    background-color: #c2185b;
}

/* 论坛主体内容 - 分栏布局（用户体验：优化间距，提升可读性） */
.forum-main {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-top: 20px;
}

.forum-content {
    width: 100%;
    max-width: 1480px;
    display: flex;
    padding: 0 0px 20px;
    flex: 1;
    gap: 25px;
}

/* 左侧主内容区 */
.main-content {
    flex: 3;
}

/* 论坛板块样式（EEAT：添加板块描述，提升内容权威性） */
.forum-section {
    background-color: #fff;
    border: 1px solid #e8eaf6;
    border-radius: 8px;
    margin-bottom: 25px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    /* 用户体验：添加hover效果 */
    transition: box-shadow 0.3s ease;
}

.forum-section:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.section-header {
    background: linear-gradient(to right, #3f51b5, #5c6bc0);
    color: white;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.section-header h2 {
    font-size: 18px;
    font-weight: normal;
    display: flex;
    align-items: center;
    gap: 10px;
    /* 语义优化：标题包含核心语义 */
}

.section-header h2::before {
    content: "";
    display: inline-block;
    width: 4px;
    height: 18px;
    background-color: white;
    border-radius: 2px;
}

.section-header a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.9;
}

/* 板块内容 - 帖子列表（EEAT：优化帖子信息展示，提升可信度） */
.section-content {
    padding: 0;
}

.forum-table {
    width: 100%;
    border-collapse: collapse;
}

.forum-table th {
    background-color: #f5f6fa;
    padding: 12px 15px;
    text-align: left;
    font-size: 14px;
    color: #555;
    border-bottom: 1px solid #eee;
}

.forum-table td {
    padding: 15px;
    border-bottom: 1px solid #f0f0f0;
    vertical-align: middle;
}

.forum-table tr:hover {
    background-color: #f8f9ff;
}

.post-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.post-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: #e8eaf6;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #3f51b5;
    font-size: 20px;
}

.post-info {
    flex: 1;
}

.post-title {
    font-size: 16px;
    color: #1a237e;
    text-decoration: none;
    margin-bottom: 5px;
    display: block;
    font-weight: 500;
    /* 语义优化：标题包含核心关键词，提升语义匹配 */
}

.post-title:hover {
    color: #3f51b5;
}

.post-meta {
    font-size: 12px;
    color: #999;
    display: flex;
    gap: 15px;
    /* EEAT：展示作者信息，提升权威性 */
}

.post-stats {
    text-align: center;
    font-size: 14px;
    color: #666;
    min-width: 60px;
    /* 用户体验：展示互动数据，提升信任度 */
}

.post-last {
    font-size: 12px;
    color: #666;
}

.post-last a {
    color: #3f51b5;
    text-decoration: none;
}

/* 图文帖子样式（用户体验：优化图片加载，提升性能） */
.post-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    padding: 20px;
}

.post-card {
    display: flex;
    gap: 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.post-card:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.post-img {
    width: 120px;
    height: 100px;
    background-color: #e8eaf6;
    background-size: cover;
    background-position: center;
    /* 用户体验：添加懒加载 */
    loading: "lazy";
}

.post-card-content {
    padding: 10px 0;
}

/* 精华帖子展示（EEAT：突出精华内容，提升权威性） */
.essence-posts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 20px;
}

.essence-card {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.essence-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.essence-img {
    height: 180px;
    background-color: #e8eaf6;
    background-size: cover;
    background-position: center;
    loading: "lazy";
}

.essence-content {
    padding: 15px;
}

.essence-title {
    font-size: 16px;
    color: #1a237e;
    margin-bottom: 8px;
    font-weight: 500;
    text-decoration: none;
    display: block;
}

.essence-title:hover {
    color: #3f51b5;
}

.essence-desc {
    font-size: 13px;
    color: #666;
    margin-bottom: 10px;
    line-height: 1.5;
    /* 语义优化：描述包含核心语义，提升匹配度 */
}

.essence-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #999;
    /* EEAT：展示作者和浏览量，提升可信度 */
}

/* 打卡地图片展示（用户体验：优化图片交互） */
.checkin-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    padding: 20px;
}

.gallery-item {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.gallery-item:hover {
    transform: scale(1.03);
}

.gallery-img {
    height: 120px;
    background-color: #e8eaf6;
    background-size: cover;
    background-position: center;
    loading: "lazy";
}

.gallery-caption {
    padding: 8px 10px;
    background-color: #f8f9fa;
    font-size: 13px;
    color: #333;
    text-align: center;
}

/* 分页样式（用户体验：优化分页交互） */
.pagination {
    padding: 20px;
    display: flex;
    justify-content: center;
    gap: 8px;
}

.pagination a {
    display: inline-block;
    padding: 8px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #3f51b5;
    text-decoration: none;
    transition: all 0.3s;
}

.pagination a:hover, .pagination .active {
    background-color: #3f51b5;
    color: white;
    border-color: #3f51b5;
}

/* 右侧边栏（EEAT：添加权威信息模块） */
.sidebar {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-widget {
    background-color: #fff;
    border: 1px solid #e8eaf6;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.widget-header {
    background-color: #f5f6fa;
    padding: 12px 15px;
    border-bottom: 1px solid #eee;
    font-weight: 500;
    color: #1a237e;
    font-size: 16px;
}

.widget-content {
    padding: 15px;
}

/* 热门用户（EEAT：展示用户资质，提升权威性） */
.user-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.user-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #e8eaf6;
    background-size: cover;
    background-position: center;
    loading: "lazy";
}

.user-info {
    flex: 1;
}

.user-name {
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

.user-desc {
    font-size: 12px;
    color: #999;
    /* EEAT：展示用户身份，提升可信度 */
}

/* 热门标签（语义优化：标签包含核心关键词，提升语义匹配） */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-cloud a {
    display: inline-block;
    padding: 5px 12px;
    background-color: #f0f2ff;
    color: #3f51b5;
    border-radius: 15px;
    font-size: 12px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.tag-cloud a:hover {
    background-color: #e8eaf6;
}

/* 活动预告（EEAT：展示活动详情，提升真实性） */
.event-item {
    padding: 10px 0;
    border-bottom: 1px dashed #eee;
}

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

.event-title {
    font-size: 14px;
    color: #1a237e;
    margin-bottom: 5px;
}

.event-time {
    font-size: 12px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 5px;
}

.event-time::before {
    content: "📅";
    font-size: 14px;
}

/* 用户分享图片墙（用户体验：优化图片交互） */
.photo-wall {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.photo-item {
    height: 60px;
    border-radius: 4px;
    background-color: #e8eaf6;
    background-size: cover;
    background-position: center;
    cursor: pointer;
    transition: transform 0.3s;
    loading: "lazy";
}

.photo-item:hover {
    transform: scale(1.1);
}

/* 交友指南（EEAT：添加权威指南，提升专业性） */
.safety-guide {
    font-size: 14px;
    line-height: 1.8;
    color: #555;
}

.safety-guide li {
    margin-bottom: 8px;
    list-style-type: disc;
    list-style-position: inside;
}

/* 顶部通知栏样式 */
.top-notice {
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: white;
    padding: 10px 0;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}
.top-notice-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.top-notice a {
    color: white;
    text-decoration: underline;
    font-weight: 600;
}

/* 头部样式 */
header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 20px 0;
    margin-bottom: 20px;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.forum-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}
.forum-logo img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(0,0,0,0.1);
}
.forum-logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #333;
}

/* 搜索框样式 */
.search-box {
    position: relative;
    width: 300px;
}
.search-input {
    width: 100%;
    padding: 12px 45px 12px 15px;
    border: 2px solid #f0f0f0;
    border-radius: 30px;
    font-size: 14px;
    transition: all 0.3s ease;
}
.search-input:focus {
    outline: none;
    border-color: #ff6b6b;
    box-shadow: 0 0 0 3px rgba(255,107,107,0.1), 0 4px 12px rgba(255,107,107,0.15);
}
.search-icon {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    font-size: 16px;
    transition: color 0.3s ease;
}
.search-box:focus-within .search-icon {
    color: #ff6b6b;
}

/* 用户栏样式 */
.user-bar {
    display: flex;
    align-items: center;
    gap: 15px;
}
.user-bar a {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 15px;
    border-radius: 20px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    font-weight: 500;
}
.user-bar .login-btn {
    background: #ff6b6b;
    color: white;
}
.user-bar .register-btn {
    background: #4ecdc4;
    color: white;
}
.user-bar .msg-btn {
    position: relative;
}
.user-bar .msg-btn::after {
    content: '3';
    position: absolute;
    top: -5px;
    right: -5px;
    background: #ff6b6b;
    color: white;
    font-size: 10px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* 导航栏样式 */
nav {
    background: linear-gradient(135deg, #333, #555);
    border-radius: 10px;
    margin-bottom: 20px;
    width: 100%;
}
.nav-container {
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 20px;
}
.nav-main {
    display: flex;
    list-style: none;
    gap: 2px;
    justify-content: center;
}
.nav-main li a {
    display: block;
    padding: 15px 20px;
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}
.nav-main li.active a {
    background: #ff6b6b;
}

/* 页脚样式（EEAT：添加网站资质信息，提升可信度） */
footer {
    background-color: #1a237e;
    color: white;
    text-align: center;
    padding: 60px 0 30px;
    font-size: 14px;
    background-image: url('../images/aish_banner3.jpg');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    margin-top: auto;
    position: relative;
    overflow: hidden;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
    width: 100%;
}

/* 页脚内容容器：固定1480px宽度 */
.footer-container {
    width: 100%;
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 20px;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 35, 126, 0.9), rgba(49, 27, 146, 0.9));
    z-index: 1;
}

footer > * {
    position: relative;
    z-index: 2;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    text-align: left;
}

.footer-column {
    flex: 1;
    min-width: 200px;
}

.footer-column h4 {
    font-size: 18px;
    margin-bottom: 20px;
    border-bottom: 2px solid #536dfe;
    padding-bottom: 10px;
    color: #fff;
    font-weight: 600;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 12px;
    transition: transform 0.3s ease;
}

.footer-column li:hover {
    transform: translateX(5px);
}

.footer-column a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-column a:hover {
    color: #536dfe;
    text-decoration: none;
}

.footer-column a::before {
    content: '→';
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.footer-column a:hover::before {
    opacity: 1;
    transform: translateX(3px);
}

.footer-center {
    text-align: center;
    margin-bottom: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #fff;
    object-fit: cover;
}

.footer-logo h3 {
    font-size: 24px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    margin: 0;
}

.footer-description {
    max-width: 600px;
    margin: 0 auto 20px;
    line-height: 1.6;
    color: rgba(255,255,255,0.9);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: #536dfe;
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(83, 109, 254, 0.4);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255,255,255,0.7);
}

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

.footer-certifications {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.certification {
    padding: 8px 16px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 20px;
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    transition: all 0.3s ease;
}

.certification:hover {
    background-color: rgba(83, 109, 254, 0.2);
    color: #536dfe;
}

/* 响应式优化（用户体验：适配移动端） */
@media (max-width: 1200px) {
    .essence-posts {
        grid-template-columns: repeat(2, 1fr);
    }
    .checkin-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .forum-main {
        flex-direction: column;
    }
    .essence-posts {
        grid-template-columns: 1fr;
    }
    .post-grid {
        grid-template-columns: 1fr;
    }
    .checkin-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    .fullscreen-banner {
        height: 300px;
    }
    .banner-content h2 {
        font-size: 32px;
    }
    .nav-main {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .checkin-gallery {
        grid-template-columns: 1fr;
    }
    .fullscreen-banner {
        height: 250px;
    }
    .banner-content h2 {
        font-size: 24px;
    }
    .search-box {
        width: 100%;
    }
    .search-bar {
        flex-direction: column;
        gap: 10px;
    }
}

/* 响应式设计 - 头部和导航 */
@media (max-width: 992px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    .search-box {
        width: 100%;
        max-width: 300px;
    }
    .nav-main {
        overflow-x: auto;
        white-space: nowrap;
    }
}
@media (max-width: 768px) {
    .header-content {
        padding: 0 15px;
    }
    .forum-logo img {
        width: 50px;
        height: 50px;
    }
    .forum-logo h1 {
        font-size: 20px;
    }
    .user-bar {
        gap: 10px;
    }
    .user-bar a {
        padding: 6px 12px;
        font-size: 13px;
    }
    .nav-main li a {
        padding: 12px 16px;
        font-size: 13px;
    }
}

/* 论坛公告样式 */
.announcement-list {
    list-style: none;
}

.announcement-list li {
    padding: 10px 0;
    border-bottom: 1px dashed #eee;
}

.announcement-list li:last-child {
    border-bottom: none;
}

.announcement-list a {
    color: #3f51b5;
    text-decoration: none;
    font-size: 14px;
    display: block;
    margin-bottom: 5px;
    transition: color 0.3s;
}

.announcement-list a:hover {
    color: #1a237e;
}

.announcement-time {
    font-size: 12px;
    color: #999;
}

/* 天气信息样式 */
.weather-info {
    text-align: center;
}

.weather-main {
    margin-bottom: 15px;
}

.weather-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.weather-temp {
    font-size: 24px;
    font-weight: 600;
    color: #3f51b5;
    margin-bottom: 5px;
}

.weather-desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.weather-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 15px;
    font-size: 12px;
    color: #666;
}

.weather-item {
    background-color: #f8f9fa;
    padding: 8px;
    border-radius: 4px;
}

.weather-advice {
    background-color: #e3f2fd;
    padding: 10px;
    border-radius: 4px;
    font-size: 12px;
    color: #1976d2;
}

/* 论坛统计样式 */
.stats-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.stats-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px dashed #eee;
}

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

.stats-label {
    font-size: 14px;
    color: #666;
}

.stats-value {
    font-size: 16px;
    font-weight: 600;
    color: #3f51b5;
}

/* 热门帖子样式 */
.hot-posts {
    list-style: none;
}

.hot-posts li {
    padding: 10px 0;
    border-bottom: 1px dashed #eee;
}

.hot-posts li:last-child {
    border-bottom: none;
}

.hot-posts a {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    display: block;
    margin-bottom: 5px;
    transition: color 0.3s;
    line-height: 1.4;
}

.hot-posts a:hover {
    color: #3f51b5;
}

.hot-post-meta {
    font-size: 12px;
    color: #999;
}

/* 在线用户样式 */
.online-stats {
    text-align: center;
}

.online-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px dashed #eee;
}

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

.online-label {
    font-size: 14px;
    color: #666;
}

.online-value {
    font-size: 16px;
    font-weight: 600;
    color: #4caf50;
}

.online-users {
    margin-top: 15px;
}

.online-user-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.online-user {
    padding: 6px 12px;
    background-color: #e8f5e9;
    border-radius: 15px;
    font-size: 12px;
    color: #2e7d32;
}

.online-user.more {
    background-color: #f5f5f5;
    color: #666;
}

/* 友情链接样式 */
.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.friend-links a {
    padding: 6px 12px;
    background-color: #f0f2ff;
    border-radius: 15px;
    font-size: 12px;
    color: #3f51b5;
    text-decoration: none;
    transition: background-color 0.3s;
}

.friend-links a:hover {
    background-color: #e8eaf6;
}