/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', 'Hiragino Sans GB', sans-serif;
}

body {
    color: #333;
    background: #f5f5f5;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 头部区域 */
.global-notice {
    background: #0056b3;
    color: white;
    text-align: center;
    padding: 10px 0;
    font-size: 14px;
}

.header-container {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
}

.brand-group {
    display: flex;
    align-items: baseline;
}

.brand-logo {
    font-size: 28px;
    font-weight: bold;
    color: #0056b3;
    margin-right: 12px;
}

.brand-en {
    font-size: 16px;
    color: #666;
}

.language-selector {
    position: relative;
}

.language-select {
    padding: 8px 35px 8px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    appearance: none;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='%23666'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E") no-repeat;
    background-position: right 10px center;
    font-size: 14px;
    cursor: pointer;
}
ul, ol {
    list-style: none;
    padding-left: 0;
}
/* 主导航 */
.nav-container {
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    background: white;
}

.nav-menu {
    display: flex;
    list-style: none;
    justify-content: center;
}

.nav-item {
    position: relative;
    padding: 18px 30px;
}

.nav-item > a {
    font-weight: bold;
    font-size: 16px;
    color: #333;
    transition: color 0.3s;
}

.nav-item:hover > a {
    color: #0056b3;
}

.sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 220px;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-radius: 0 0 4px 4px;
    z-index: 100;
}

.nav-item:hover .sub-menu {
    display: block;
}

.sub-menu li {
    padding: 12px 20px;
    border-bottom: 1px solid #f0f0f0;
}

.sub-menu a {
    font-size: 14px;
    color: #555;
    transition: color 0.2s;
}

.sub-menu a:hover {
    color: #0056b3;
}

/* 横幅区域 */
.hero-banner {
    width: 100%;
    height: 450px;
    display: flex;
    justify-content: center;
    padding: 20px 0;
    background-color: white;
}

.banner-container {
    width: 92%;
    max-width: 1200px;
    background: linear-gradient(to right, #0056b3, #0085ca);
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
}

.banner-content {
    width: 45%;
    color: white;
    z-index: 2;
}

.banner-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.3;
}

.banner-subtitle {
    font-size: 24px;
}

.banner-image {
    position: absolute;
    right: 0;
    width: 50%;
    height: 90%;
    background-color: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    z-index: 3;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    margin: 0 6px;
    cursor: pointer;
}

.dot.active {
    background: white;
}

/* 新闻区域 */
.news-section {
    background: white;
    padding: 40px 0;
    margin-bottom: 30px;
}

.section-title {
    text-align: center;
    font-size: 28px;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.news-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 25px;
}

.tab-button {
    padding: 10px 25px;
    margin: 0 8px;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: bold;
    color: #666;
    font-size: 16px;
}

.tab-button.active {
    color: #0056b3;
    border-bottom: 3px solid #0056b3;
}

.news-list {
    max-width: 900px;
    margin: 0 auto;
}

.news-item {
    padding: 18px 0;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
    transition: background 0.3s;
    display: none;
}

.news-item:hover {
    background: #f9f9f9;
}

.news-category-all {
    display: flex;
}

.news-date {
    width: 110px;
    color: #666;
    font-size: 14px;
    flex-shrink: 0;
}

.news-category {
    width: 90px;
    background: #f0f0f0;
    color: #0056b3;
    padding: 5px;
    border-radius: 3px;
    font-size: 12px;
    text-align: center;
    margin: 0 15px;
    flex-shrink: 0;
}

.news-title {
    flex: 1;
    font-size: 15px;
}

.view-all {
    text-align: center;
    margin-top: 25px;
}

.view-all a {
    color: #0056b3;
    font-weight: bold;
}

/* 运营区域 */
.operation-section {
    padding: 50px 0;
}

.operation-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
}

.site-cards {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    gap: 30px;
}

.site-card {
    width: 45%;
    padding: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.site-name {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #0056b3;
}

.site-url {
    color: #666;
    margin-bottom: 15px;
    font-size: 16px;
}

.site-desc {
    font-size: 15px;
    line-height: 1.7;
}

/* 公司简介区 */
.content-section {
    background: white;
    padding: 50px 0;
    margin: 30px 0;
}

.page-title {
    font-size: 32px;
    color: #0056b3;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
    text-align: center;
}

.company-info-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 40px;
}

.info-block {
    flex: 1;
    min-width: 300px;
    padding: 25px;
    background: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.info-title {
    font-size: 22px;
    color: #0056b3;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.info-content {
    line-height: 1.8;
}

.info-content p {
    margin-bottom: 15px;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

.info-table th, .info-table td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

.info-table th {
    background-color: #f5f5f5;
    width: 30%;
}

.info-list {
    list-style-position: inside;
    line-height: 1.8;
    padding-left: 5px;
}

.info-list li {
    margin-bottom: 8px;
}

/* 页脚 */
.footer {
    background: #333;
    color: white;
    padding: 50px 0;
    margin-top: 50px;
}

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

.footer-link {
    margin: 0 20px;
    color: #ccc;
    font-size: 15px;
}

.company-info {
    text-align: center;
    font-size: 15px;
    margin-bottom: 30px;
    line-height: 1.8;
}

.copyright {
    text-align: center;
    font-size: 13px;
    color: #999;
}


/* 新增图片展示区域样式 */
.promo-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.promo-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.promo-card:hover {
    transform: translateY(-5px);
}

.promo-image {
    height: 200px;
    overflow: hidden;
}

.promo-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.promo-card:hover .promo-image img {
    transform: scale(1.05);
}

.promo-title {
    font-size: 20px;
    font-weight: bold;
    color: #0056b3;
    padding: 15px 20px 5px;
}

.promo-desc {
    color: #666;
    padding: 0 20px 20px;
    font-size: 15px;
}