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

body {
    width: 1600px;
    margin: 0 auto;
    background: #FFFFFF;
    font-family: "Microsoft YaHei", Arial, sans-serif;
    color: #333;
}

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

ul {
    list-style: none;
}

img {
    display: block;
    border: 0;
}

.wrap {
    width: 1600px;
    margin: 0 auto;
}

/* ========== 板块1：顶部工具栏 ========== */
.topbar {
    position: relative;
    width: 1600px;
    height: 43px;
    background: #f5f5f5;
    border-bottom: 1px solid #e5e5e5;
    font-size: 12px;
    color: #555;
}

.topbar .wrap {
    height: 100%;
    display: flex;
    align-items: center;
}

.topbar .welcome {
    position: absolute;
    left: 203px;
    top: 50%;
    transform: translateY(-50%);
    color: #333;
    display: flex;
    align-items: center;
}

.topbar .welcome img {
    width: 13px;
    height: 13px;
    margin-right: 6px;
}

.topbar .welcome .arrow {
    width: 8px;
    height: 5px;
    margin-left: 14px;
    margin-right: 0;
}

.topbar .nav {
    position: absolute;
    left: 416px;
    top: 50%;
    transform: translateY(-50%);
    color: #333;
    display: flex;
    align-items: center;
}

.topbar .nav-arrow {
    position: absolute;
    left: 474px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 5px;
}

.topbar .searchbox {
    position: absolute;
    left: 688px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
}

.topbar .searchbox input {
    height: 33px;
    width: 228px;
    padding: 0 8px;
    border: 1px solid #ccc;
    font-size: 12px;
    outline: none;
}

.topbar .searchbox button {
    height: 33px;
    width: 79px;
    padding: 0 14px;
    border: 1px solid #ccc;
    border-left: 0;
    background: #fff;
    cursor: pointer;
    font-size: 12px;
}

.topbar .toplinks {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.topbar .toplinks a {
    color: #555;
    margin: 0 4px;
}

.topbar .toplinks a:hover {
    color: #c00;
}

/* ========== 板块2：导航栏 53px ========== */
.navbar {
    width: 100%;
    height: 53px;
    background: #1a4a8a;
}

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

.navbar ul {
    display: flex;
    height: 100%;
}

.navbar ul li {
    height: 100%;
}

.navbar ul li a {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 0 32px;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
}

.navbar ul li a:hover,
.navbar ul li a.active {
    background: #0d3266;
}

/* ========== 板块3：网站头部切图 ========== */
.header-banner {
    width: 100%;
}

.header-banner img {
    width: 100%;
}

/* ========== 通用板块容器 ========== */
.section {
    width: 100%;
    padding: 30px 0;
}

.section .wrap {
    display: flex;
    gap: 20px;
}

/* ========== 板块标题 ========== */
.sec-title {
    text-align: center;
    margin-bottom: 20px;
}

.sec-title h2 {
    display: inline-block;
    font-size: 22px;
    color: #1a4a8a;
    border-bottom: 2px solid #1a4a8a;
    padding: 0 20px 8px;
    font-weight: bold;
}

.sec-title-en {
    font-size: 12px;
    color: #999;
    margin-top: 4px;
    letter-spacing: 1px;
}

/* ========== 板块4：新闻资讯（3列） ========== */
.news-section {
    background: #fff;
}

.news-col {
    flex: 1;
    background: #f9f9f9;
    border: 1px solid #e8e8e8;
    padding: 15px;
}

.news-col h3 {
    font-size: 16px;
    color: #1a4a8a;
    border-bottom: 1px solid #1a4a8a;
    padding-bottom: 8px;
    margin-bottom: 12px;
}

.news-pic img {
    width: 100%;
    height: 180px;
    background: #ddd;
    object-fit: cover;
}

.news-pic h4 {
    font-size: 15px;
    color: #333;
    margin: 10px 0 6px;
    line-height: 1.5;
}

.news-pic p {
    font-size: 12px;
    color: #888;
    line-height: 1.6;
}

.news-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px dashed #eee;
    font-size: 13px;
}

.news-list li a {
    color: #333;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-left: 10px;
    position: relative;
}

.news-list li a::before {
    content: "·";
    position: absolute;
    left: 0;
    color: #1a4a8a;
    font-weight: bold;
}

.news-list li .date {
    color: #999;
    font-size: 12px;
}

.news-list li a:hover {
    color: #c00;
}

.news-rank li {
    display: flex;
    align-items: center;
    padding: 7px 0;
    border-bottom: 1px dashed #eee;
    font-size: 13px;
}

.news-rank .rank-num {
    display: inline-block;
    width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    background: #ccc;
    color: #fff;
    font-size: 12px;
    margin-right: 8px;
}

.news-rank li:nth-child(-n+3) .rank-num {
    background: #c00;
}

.news-rank li a {
    color: #333;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.news-rank li a:hover {
    color: #c00;
}

/* ========== 蓝色波浪分隔条 ========== */
.divider-wave {
    width: 100%;
    height: 60px;
    background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 60' preserveAspectRatio='none'><path d='M0,30 Q200,0 400,30 T800,30 T1200,30 T1600,30 L1600,60 L0,60 Z' fill='%231a4a8a' opacity='0.15'/><path d='M0,40 Q200,20 400,40 T800,40 T1200,40 T1600,40' stroke='%231a4a8a' stroke-width='2' fill='none'/></svg>") center/100% 100% no-repeat;
}

.divider-wave-2 {
    width: 100%;
    height: 50px;
    background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 50' preserveAspectRatio='none'><path d='M0,25 C200,5 400,45 800,25 C1200,5 1400,45 1600,25 L1600,50 L0,50 Z' fill='%231a4a8a' opacity='0.1'/></svg>") center/100% 100% no-repeat;
}

/* ========== 红色丝带分隔条 ========== */
.divider-ribbon {
    width: 100%;
    height: 50px;
    background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 50' preserveAspectRatio='none'><path d='M0,15 L1600,15 L1600,35 L800,45 L0,35 Z' fill='%23c00' opacity='0.85'/><path d='M0,15 L1600,15' stroke='%23ff6b6b' stroke-width='1'/></svg>") center/100% 100% no-repeat;
}

/* ========== 板块5：中心内容（标题+文章列表） ========== */
.article-section {
    background: #fff;
}

.article-section .wrap {
    display: block;
}

.article-list {
    margin-top: 20px;
}

.article-list li {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px dashed #e5e5e5;
    font-size: 14px;
}

.article-list li .tag {
    display: inline-block;
    padding: 2px 8px;
    background: #1a4a8a;
    color: #fff;
    font-size: 12px;
    margin-right: 12px;
    border-radius: 2px;
}

.article-list li a {
    flex: 1;
    color: #333;
}

.article-list li a:hover {
    color: #c00;
}

.article-list li .date {
    color: #999;
    font-size: 12px;
}

/* ========== 板块6：3卡片网格 ========== */
.card-grid-3 {
    display: flex;
    gap: 20px;
}

.card {
    flex: 1;
    background: #f9f9f9;
    border: 1px solid #e8e8e8;
    overflow: hidden;
}

.card img {
    width: 100%;
    height: 200px;
    background: #ddd;
    object-fit: cover;
}

.card-body {
    padding: 15px;
}

.card-body h4 {
    font-size: 16px;
    color: #1a4a8a;
    margin-bottom: 8px;
    text-align: center;
}

.card-body p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

/* ========== 板块7：双列+侧边栏 ========== */
.layout-sidebar {
    display: flex;
    gap: 20px;
}

.sidebar {
    width: 260px;
    background: #f9f9f9;
    border: 1px solid #e8e8e8;
}

.sidebar h3 {
    background: #1a4a8a;
    color: #fff;
    padding: 12px 15px;
    font-size: 16px;
}

.sidebar ul li a {
    display: block;
    padding: 10px 15px;
    border-bottom: 1px solid #eee;
    color: #333;
    font-size: 14px;
}

.sidebar ul li a:hover {
    background: #e8eef7;
    color: #1a4a8a;
}

.main-content {
    flex: 1;
    background: #f9f9f9;
    border: 1px solid #e8e8e8;
    padding: 20px;
}

.main-content h3 {
    font-size: 18px;
    color: #1a4a8a;
    border-bottom: 2px solid #1a4a8a;
    padding-bottom: 8px;
    margin-bottom: 15px;
}

/* ========== 板块8：4卡片网格（2x2） ========== */
.card-grid-4 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ========== 板块9：双列内容 ========== */
.two-col {
    display: flex;
    gap: 20px;
}

.two-col-block {
    flex: 1;
    background: #f9f9f9;
    border: 1px solid #e8e8e8;
    padding: 20px;
}

.two-col-block h3 {
    font-size: 18px;
    color: #1a4a8a;
    border-bottom: 2px solid #1a4a8a;
    padding-bottom: 8px;
    margin-bottom: 15px;
}

.two-col-block .desc {
    color: #666;
    font-size: 13px;
    line-height: 1.8;
}

/* ========== 板块10：2x2图片网格 ========== */
.img-grid-2x2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.img-grid-2x2 .img-item {
    position: relative;
}

.img-grid-2x2 img {
    width: 100%;
    height: 240px;
    background: #ddd;
    object-fit: cover;
}

.img-grid-2x2 .img-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 8px 12px;
    font-size: 14px;
}

/* ========== 板块：Footer ========== */
.footer {
    width: 100%;
    background: #1a4a8a;
    color: #fff;
    padding: 30px 0;
    margin-top: 20px;
}

.footer .wrap {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.footer-left h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.footer-left p {
    font-size: 13px;
    line-height: 1.8;
    color: #c8d4e8;
}

.footer-right {
    text-align: right;
    font-size: 12px;
    color: #c8d4e8;
    line-height: 1.8;
}