/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
:root {
    --primary-color: #E53C3C;
    --secondary-color: #2A8C47;
    --white: #FFFFFF;
    --text-color: #333333;
    --bg-color: #F5F5F5;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Microsoft YaHei', 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航样式 */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo img {
    height: 50px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background-color: rgba(229, 60, 60, 0.1);
}

.login-btn {
    background-color: var(--primary-color);
    color: var(--white) !important;
}

.login-btn:hover {
    background-color: #d32f2f;
}

/* Banner轮播图样式 */
.banner {
    margin-top: 80px;
    position: relative;
    height: 600px;
    overflow: hidden;
}

.slider {
    height: 100%;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content h2 {
    font-size: 3em;
    margin-bottom: 20px;
}

.slider-controls button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.3);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    color: var(--white);
    transition: var(--transition);
}

.prev-btn { left: 20px; }
.next-btn { right: 20px; }

.slider-controls button:hover {
    background: rgba(255, 255, 255, 0.5);
}

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--white);
}

/* 延边简介卡片样式 */
.intro {
    padding: 80px 0;
    background-color: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: var(--text-color);
}

.intro-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
}

.card i {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
    color: var(--text-color);
}

/* 主题入口样式 */
.theme-entries {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.entry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.entry-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    aspect-ratio: 1;
    text-decoration: none;
}

.entry-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.entry-item h3 {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: var(--white);
    margin: 0;
}

/* 数据展示样式 */
.data-showcase {
    padding: 80px 0;
    background-color: var(--white);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.data-item .number {
    font-size: 3em;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: var(--white);
    padding: 40px 0;
}

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

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

.social-link {
    color: var(--white);
    font-size: 24px;
    transition: var(--transition);
}

.social-link:hover {
    color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .intro-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .entry-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .intro-cards,
    .entry-grid,
    .data-grid {
        grid-template-columns: 1fr;
    }
    
    .banner {
        height: 400px;
    }
    
    .slide-content h2 {
        font-size: 2em;
    }
} 


.container {
            overflow: hidden; /* 清除浮动 */
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        .text-content {
            float: left;
            width: 65%;
            padding: 20px;
            box-sizing: border-box;
        }
        .image-content {
            float: right;
            width: 30%;
            padding: 20px;
            box-sizing: border-box;
        }
        .image-content img {
            width: 100%;
            height: auto;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .text-content, 
            .image-content {
                float: none;
                width: 100%;
            }
        }