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

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Segoe UI", Roboto, sans-serif;
    line-height: 1.7;
    color: #333;
    background-color: #fff;
    font-size: 16px;
}
a { text-decoration: none;color:#111;}
img { border:0;}
ul,ol{list-style:none}

.container { 
    width: 1400px;
    margin: 0 auto;
}

.article-container {
    overflow: hidden;
    margin-bottom: 40px;
    margin-top: 50px;
}

.article-header {
    padding: 40px 50px 20px;
    border-bottom: 1px solid #f0f0f0;
    background: linear-gradient(135deg, #f8f9ff 0%, #f1f4ff 100%);
}

.article-category {
    display: inline-block;
    background-color: #4a6cf7;
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    color: #222;
    text-align: center;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    color: #666;
    font-size: 15px;
    margin-bottom: 10px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.meta-item i {
    color: #4a6cf7;
    font-size: 16px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 10px;
    border: 2px solid #eaeaea;
}

.article-featured-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    margin: 30px 0;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-content {
    padding: 40px 0;
    font-size: 18px;
    line-height: 1.8;
    color: #444;
}

.article-content p {
    margin-bottom: 24px;
    text-align: justify;
    font-size: 18px;
}

.article-content h2 {
    font-size: 24px;
    margin: 40px 0 20px;
    color: #222;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

.article-content h3 {
    font-size: 20px;
    margin: 30px 0 15px;
    color: #333;
}

.article-content blockquote {
    border-left: 4px solid #4a6cf7;
    padding: 15px 25px;
    margin: 30px 0;
    background-color: #f8f9ff;
    font-style: italic;
    color: #555;
    border-radius: 0 8px 8px 0;
    font-size: 17px;
}

.article-content ul, .article-content ol {
    margin: 20px 0 20px 30px;
    font-size: 17px;
}

.article-content li {
    margin-bottom: 10px;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 25px 0;
}

/* 新增：文章底部感兴趣文章区域样式 */
.related-articles-section {
    border-top: 2px solid #f0f0f0;
}

.related-articles-title {
    font-size: 24px;
    font-weight: 600;
    color: #222;
    margin-bottom: 35px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.related-articles-title i {
    color: #4a6cf7;
    font-size: 22px;
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.related-article-item {
    background-color: #fafafa;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #eaeaea;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.related-article-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #d0d7ff;
}

.related-article-content {
    padding: 22px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.related-article-category {
    background-color: #eef2ff;
    color: #4a6cf7;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 14px;
    align-self: flex-start;
}

.related-article-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #222;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.related-article-item:hover .related-article-title {
    color: #4a6cf7;
}

.related-article-desc {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.related-article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #777;
    font-size: 14px;
    padding-top: 12px;
    border-top: 1px solid #eee;
}

.related-article-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.related-article-meta i {
    font-size: 14px;
    color: #888;
}

.article-footer {
    padding: 30px 50px;
    border-top: 1px solid #f0f0f0;
    background-color: #fafafa;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

.tag {
    background-color: #eef2ff;
    color: #4a6cf7;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tag:hover {
    background-color: #4a6cf7;
    color: white;
    cursor: pointer;
}

/* 重新设计的推荐文章区域 */
.recommended-articles {
    margin: 0 auto;
    margin-top: 60px;
    padding: 30px 0;
}

.section-title {
    font-size: 32px;
    margin-bottom: 30px;
    color: #222;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: #4a6cf7;
    font-size: 26px;
}

.recommended-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 固定2列 */
    gap: 30px;
}

.recommended-item {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.recommended-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.recommended-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.recommended-item:hover .recommended-image {
    transform: scale(1.05);
}

.recommended-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 0; /* 关键：允许内容区域压缩 */
}

.recommended-category {
    background-color: #f0f7ff;
    color: #4a6cf7;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
    align-self: flex-start;
}

.recommended-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #222;
    line-height: 1.4;
    /* 标题1行超出隐藏 */
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
}

.recommended-desc {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
    min-height: 0; /* 关键：允许描述区域压缩 */
    /* 描述2行超出隐藏 */
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
}

.recommended-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #888;
    font-size: 14px;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
    margin-top: auto; /* 确保元信息始终在底部 */
}

.recommended-meta i {
    font-size: 14px;
    margin-right: 5px;
}


/* 本地字体备用方案 */
@font-face {
    font-family: 'LocalFallbackSerif';
    font-style: normal;
    font-weight: 400;
    src: local('Times New Roman'), local('Times'), serif;
}

@font-face {
    font-family: 'LocalFallbackSans';
    font-style: normal;
    font-weight: 400;
    src: local('Arial'), local('Helvetica'), sans-serif;
}

/* 确保在系统字体不可用时使用备用字体 */
body, .article-title, .article-content {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Segoe UI", Roboto, "LocalFallbackSans", sans-serif;
}

/* 基础字体大小响应式调整 */
html {
    font-size: 16px;
}

/* 导航栏容器 */
.navbar {
    z-index: 1000;
}

/* 导航栏内容 */
.nav-container {
    width: 1400px;
    margin: 0 auto;
    padding: 0 55px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

/* 公司Logo */
.logo {
    text-decoration: none;
}

/* 桌面导航菜单 */
.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 40px;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    padding: 8px 0;
    transition: color 0.3s;
    position: relative;
}

.nav-link:hover {
    color: red;
}

/* 当前选中菜单项效果 */
.nav-link.active {
    color: #2563eb;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, #2563eb, #4f46e5);
    border-radius: 2px;
}

/* 行动号召按钮 */
.cta-button {
    background: linear-gradient(to right, #f50000, #8807a9);
    color: white;
    border: none;
    padding: 2px 22px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

/* 移动端菜单按钮 */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #1e293b;
    cursor: pointer;
    padding: 8px;
}

header { 
    position:fixed;
    top:0;
    left:0;
    overflow:hidden;
    width: 100%;
    z-index:9999;
}

header.active { 
    background: rgba(255,255,255,.9);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

header.active a { 
    color:#666;
}

header.active .cta-button { 
    color:#fff;
}

header.active .logo { 
    color:#111;
}

header.active .logo .brand-name { 
    color:#111;
}

header.active .logo .brand-url { 
    color:#111;
}

header.active .logo .logo-img{ 
    filter: brightness(0) saturate(100%) invert(16%) sepia(99%) saturate(7458%) hue-rotate(0deg);
}

.header { 
    width: 100%;
}

.banner {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 100vh;
    background: linear-gradient( 90deg, #111 0.126%, #333 44.067%, #333 97.163% );
    background-size: cover;
}

#tqVideo { 
    width:100%;
    height:100%;
    object-fit: cover;
}

.banner_bottom { 
    position:absolute;
    left:0;
    bottom:-20px;
    width:100%;
}

/* 目标div样式 */
.zeoch-brand {
    width: 200px;
    height: 50px;
    display: flex;
    overflow: hidden;
    font-family: 'Segoe UI', Arial, sans-serif;
}

/* 第一列：图片 */
.image-col {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius:5px;
}

.logo-img {
    width: 90%;
    height: 90%;
    object-fit: contain;
    filter: brightness(0) invert(1);
    filter: brightness(0) invert(100%) saturate(100%) hue-rotate(0deg);
    filter: brightness(0) saturate(100%) invert(16%) sepia(99%) saturate(7458%) hue-rotate(0deg);
}

/* 第二列：文本区域 */
.text-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 2px;
    overflow: hidden;
}

.brand-name {
    font-weight: 700;
    font-size: 26px;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}

.brand-url {
    font-size: 18px;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 0.7;
}

/* 横幅样式 */
.banner .banner_fo { 
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
    z-index:2;
}

.banner .text {
    width:100%;
    height:100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center; 
    align-content: center;
}

.banner .text .n { 
    text-align:center;
    color:#fff;
    font-size:70px;
    font-weight:900;
}

.banner .text .m { 
    text-align:center;
    color:#fff;
    font-size:30px;
}

/* 统计数据样式 */
.h-hot-container {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    margin: 20px auto;
}

.h-hot-list {
    display: flex;
    justify-content: space-around;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0;
}

.h-hot-item {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    padding: 0 10px;
}

.h-hot-icon {
    width: 70px;
    height: 70px;
    border-radius: 6px;
    background: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 52px;
    color: #ff6600;
}

.h-hot-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.h-hot-title {
    font-size: 30px;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    gap: 8px;
}

.h-hot-title .h-hot-go-btn {
    font-size: 12px;
    color: #fff;
    background: #ff6600;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
    text-decoration: none;
}

.h-hot-desc {
    font-size: 20px;
    color: #999;
}