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

:root {
    --primary-color: #4a90d9;
    --secondary-color: #6c757d;
    --dark-color: #333;
    --light-color: #f8f9fa;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #fff;
}

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

/* 头部 */
.header {
    background: #fff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: var(--dark-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s;
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary-color);
    color: #fff;
}

/* 主内容区 */
.main {
    min-height: calc(100vh - 160px);
}

/* 英雄区 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.hero-title {
    font-size: 48px;
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* 区块 */
.section {
    padding: 40px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.more-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
}

.more-link:hover {
    text-decoration: underline;
}

.section-title {
    font-size: 28px;
    color: var(--dark-color);
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--secondary-color);
    grid-column: 1 / -1;
}

/* 广告位 */
.ad-section {
    padding: 20px 0;
    text-align: center;
    background: var(--light-color);
}

/* 政策页 */
.policy-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.policy-container h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.policy-date {
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.policy-container h2 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: var(--dark-color);
}

.policy-container p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.policy-container a {
    color: var(--primary-color);
}

/* 联系页 */
.contact-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 40px 20px;
}

.contact-container h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

.contact-intro {
    font-size: 18px;
    color: var(--secondary-color);
    margin-bottom: 40px;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.contact-method {
    padding: 20px;
    background: var(--light-color);
    border-radius: 8px;
}

.contact-method h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.contact-info {
    padding: 20px;
    background: var(--light-color);
    border-radius: 8px;
}

.contact-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: #fff;
    padding: 30px 0;
    margin-top: 40px;
}

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

.footer-links {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.footer a {
    color: #fff;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        height: auto;
        padding: 15px 0;
    }

    .nav {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .contact-methods {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

/* 文章列表页 */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.article-card {
    display: block;
    padding: 20px;
    background: var(--light-color);
    border-radius: 8px;
    text-decoration: none;
    color: var(--dark-color);
    transition: all 0.3s;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    background: #fff;
}

.article-card-title {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.article-card-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--secondary-color);
}

.article-card-excerpt {
    font-size: 14px;
    color: var(--secondary-color);
    line-height: 1.6;
}

.article-grid .loading,
.article-grid .error,
.article-grid .no-data {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: var(--secondary-color);
}

.article-card-date {
    display: block;
    margin-top: 10px;
    font-size: 12px;
    color: var(--secondary-color);
}

/* 文章详情页 */
.article-container {
    padding: 40px 0;
}

.article-header {
    max-width: 800px;
    margin: 0 auto 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.article-title {
    font-size: 36px;
    margin-bottom: 15px;
}

.article-meta {
    display: flex;
    gap: 20px;
    color: var(--secondary-color);
    font-size: 14px;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0;
    font-size: 16px;
    line-height: 1.8;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content h2 {
    font-size: 24px;
    margin: 30px 0 15px;
}

.article-content h3 {
    font-size: 20px;
    margin: 25px 0 10px;
}

.article-content ul,
.article-content ol {
    margin: 15px 0 20px 30px;
}

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

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
}

.article-footer {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

/* 文章底部关注公众号 */
.article-follow {
    max-width: 800px;
    margin: 30px auto 0;
    padding: 30px;
    background: var(--light-color);
    border-radius: 8px;
    text-align: center;
}

.article-follow-qr {
    max-width: 100%;
    width: auto;
    height: auto;
    border-radius: 8px;
}

/* 关注我们区域 */
.follow-section {
    background: var(--light-color);
    padding: 60px 0;
    text-align: center;
}

.follow-title {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.follow-desc {
    font-size: 16px;
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.follow-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 50px;
}

.follow-item {
    text-align: center;
    max-width: 400px;
}

.follow-item h3 {
    margin-bottom: 15px;
    font-size: 20px;
    color: var(--dark-color);
}

.follow-qrcode {
    max-width: 100%;
    width: auto;
    height: auto;
    border-radius: 8px;
    margin: 0 auto;
}

/* 首页关注我们 */
.follow-intro {
    font-size: 16px;
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.follow-qr-codes {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.follow-qr-item {
    text-align: center;
}

.follow-qr-img {
    width: 280px;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.follow-qr-label {
    margin-top: 15px;
    font-size: 16px;
    color: var(--dark-color);
}

/* 返回链接 */
.back-link {
    padding: 20px 0;
}

.back-link a {
    color: var(--primary-color);
    text-decoration: none;
}

.back-link a:hover {
    text-decoration: underline;
}