/* 基础样式 */
:root {
    --primary-color: #3375ff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #1e5fcc;
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: #1e5fcc;
    color: white;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: rgba(51, 117, 255, 0.1);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* 头部导航 */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--dark-color);
}

.logo:hover {
    color: var(--dark-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu a {
    color: var(--dark-color);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
}

.nav-download-btn {
    margin-left: 10px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    height: 3px;
    width: 100%;
    background-color: var(--dark-color);
    border-radius: 3px;
}

/* 英雄区域 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-features {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* 功能区样式 */
.section-title {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    color: var(--gray-color);
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-section, .tutorial-preview, .news-preview, .faq-section {
    padding: 80px 0;
}

.features-section {
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    padding: 30px;
    border-radius: var(--border-radius);
    background-color: white;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--gray-color);
}

/* 下载引导 */
.download-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e5fcc 100%);
    color: white;
}

.download-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.download-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 25px;
    border-radius: var(--border-radius);
    background-color: white;
    color: var(--dark-color);
    font-weight: 600;
    min-width: 180px;
    transition: var(--transition);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.download-icon {
    font-size: 1.8rem;
}

.download-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--gray-color);
}

.download-platform {
    font-size: 1.2rem;
}

.download-note {
    font-size: 1rem;
    opacity: 0.8;
}

/* 教程预览 */
.tutorial-preview {
    background-color: #f8f9fa;
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.tutorial-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.tutorial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

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

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

.tutorial-content {
    padding: 25px;
}

.tutorial-content h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.tutorial-content h3 a {
    color: var(--dark-color);
}

.tutorial-content h3 a:hover {
    color: var(--primary-color);
}

.tutorial-content p {
    color: var(--gray-color);
    margin-bottom: 20px;
}

.read-more {
    font-weight: 600;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.section-cta {
    text-align: center;
    margin-top: 30px;
}

/* 新闻预览 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.news-card {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.news-date {
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-bottom: 10px;
}

.news-card h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.news-card h3 a {
    color: var(--dark-color);
}

.news-card h3 a:hover {
    color: var(--primary-color);
}

.news-card p {
    color: var(--gray-color);
}

/* FAQ部分 */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.faq-item {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.faq-item h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.faq-item p {
    color: var(--gray-color);
}

/* 页脚 */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.3rem;
    color: white;
    margin-bottom: 20px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: white;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-seo-links {
    margin-top: 15px;
}

.footer-seo-links a {
    color: rgba(255, 255, 255, 0.7);
    margin: 0 10px;
}

.footer-seo-links a:hover {
    color: white;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2.3rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 30px 0;
        gap: 0;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .nav-download-btn {
        margin-top: 20px;
        margin-left: 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .feature-card, .tutorial-card, .news-card, .faq-item {
        padding: 20px;
    }
}

/* 页面通用样式 */
.page-header {
    padding: 60px 0 40px;
    text-align: center;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    max-width: 700px;
    margin: 0 auto;
}

/* 下载页面样式 */
.download-options {
    padding: 60px 0;
}

.platform-selector {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.platform-tabs {
    display: flex;
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.platform-tab {
    padding: 20px 30px;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

.platform-tab.active {
    background-color: white;
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
}

.platform-content {
    padding: 40px;
    display: none;
}

.platform-content.active {
    display: block;
}

.platform-info {
    margin-bottom: 40px;
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.requirements {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: var(--border-radius);
    margin: 25px 0;
}

.requirements h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.requirements ul {
    list-style-type: disc;
    padding-left: 20px;
}

.requirements li {
    margin-bottom: 8px;
    color: var(--gray-color);
}

.apk-warning {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 15px;
    border-radius: var(--border-radius);
    margin: 20px 0;
}

.platform-steps {
    border-top: 1px solid #e9ecef;
    padding-top: 30px;
}

.step {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.step-content h4 {
    margin-bottom: 8px;
    color: var(--dark-color);
}

.setup-guide {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.setup-steps {
    max-width: 900px;
    margin: 0 auto;
}

.setup-step {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
    align-items: center;
}

.step-visual {
    position: relative;
    flex-shrink: 0;
}

.step-visual .step-number {
    position: absolute;
    top: -15px;
    left: -15px;
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
}

.security-tips {
    padding: 60px 0;
    background-color: white;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.tip-card {
    padding: 25px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.tip-card.warning {
    border-left-color: #ffc107;
    background-color: #fff8e1;
}

.tip-card.important {
    border-left-color: #dc3545;
    background-color: #f8d7da;
}

/* 教程页面样式 */
.toc-section {
    padding: 40px 0;
}

.toc-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-width: 300px;
    margin: 0 auto;
}

.toc-nav ul {
    padding-left: 0;
}

.toc-nav li {
    margin-bottom: 12px;
}

.toc-nav a {
    color: var(--dark-color);
    display: block;
    padding: 8px 15px;
    border-radius: 5px;
    transition: var(--transition);
}

.toc-nav a:hover, .toc-nav a.active {
    background-color: rgba(51, 117, 255, 0.1);
    color: var(--primary-color);
}

.tutorial-section {
    padding: 80px 0;
}

.tutorial-section.alt-bg {
    background-color: #f8f9fa;
}

.content-card {
    display: flex;
    gap: 50px;
    align-items: center;
    margin-bottom: 50px;
}

.content-text {
    flex: 1;
}

.content-image {
    flex-shrink: 0;
    width: 400px;
}

.content-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.defi-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.tutorial-steps {
    margin: 25px 0;
}

.tutorial-steps li {
    margin-bottom: 20px;
    padding-left: 30px;
    position: relative;
}

.tutorial-steps li:before {
    content: counter(step);
    counter-increment: step;
    position: absolute;
    left: 0;
    top: 0;
    background-color: var(--primary-color);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.tip-box {
    background-color: #e3f2fd;
    border-left: 4px solid var(--primary-color);
    padding: 20px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    margin: 25px 0;
}

.tip-box.large {
    padding: 30px;
}

.popular-dapps {
    margin-top: 50px;
}

.dapps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.dapp-card {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.dapp-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.step-by-step {
    margin: 25px 0;
}

.liquidity-steps, .lending-benefits, .yield-process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.warning-box {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 25px;
    border-radius: var(--border-radius);
    margin-top: 30px;
}

.warning-box h4 {
    margin-bottom: 15px;
    color: #856404;
}

.staking-platforms {
    margin-top: 50px;
}

.platforms-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.platforms-table th,
.platforms-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.platforms-table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.platforms-table tr:last-child td {
    border-bottom: none;
}

.platform-comparison {
    margin-top: 50px;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.security-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.security-tip {
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.security-tip.critical {
    border-top: 4px solid #dc3545;
}

.security-tip.important {
    border-top: 4px solid #ffc107;
}

.security-checklist {
    margin-top: 50px;
}

.checklist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.checklist-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
}

.checklist-item label {
    cursor: pointer;
    flex: 1;
}

.next-steps {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e5fcc 100%);
    color: white;
    text-align: center;
}

.action-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin: 30px 0;
    flex-wrap: wrap;
}

/* 新闻页面样式 */
.news-categories {
    padding: 30px 0;
    background-color: #f8f9fa;
}

.category-filters {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.category-filter {
    padding: 10px 20px;
    background-color: white;
    border: 2px solid #e9ecef;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.category-filter.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.news-main {
    padding: 60px 0;
}

.news-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.featured-news {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.featured-article {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.featured-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

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

.featured-article:hover .featured-image img {
    transform: scale(1.05);
}

.category-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.featured-content {
    padding: 30px;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.featured-content h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.featured-content h2 a {
    color: var(--dark-color);
}

.featured-content h2 a:hover {
    color: var(--primary-color);
}

.excerpt {
    color: var(--gray-color);
    margin-bottom: 20px;
    line-height: 1.7;
}

.article-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    background-color: #f8f9fa;
    color: var(--gray-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.news-sidebar .sidebar-section {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    padding-bottom: 20px;
    border-bottom: 1px solid #e9ecef;
}

.news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.news-item-content h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.news-item-content h4 a {
    color: var(--dark-color);
}

.news-item-content h4 a:hover {
    color: var(--primary-color);
}

.news-item-content p {
    color: var(--gray-color);
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--gray-color);
}

.popular-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.popular-tags .tag {
    transition: var(--transition);
    cursor: pointer;
}

.popular-tags .tag:hover {
    background-color: var(--primary-color);
    color: white;
}

.more-news {
    margin-top: 60px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.news-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.news-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.card-category {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: white;
    color: var(--primary-color);
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.news-card-content {
    padding: 25px;
}

.card-meta {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.news-card-content h4 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.news-card-content h4 a {
    color: var(--dark-color);
}

.news-card-content h4 a:hover {
    color: var(--primary-color);
}

.news-card-content p {
    color: var(--gray-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 50px;
}

.page-nav {
    color: var(--dark-color);
    font-weight: 500;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.page-nav:hover {
    background-color: #f8f9fa;
}

.page-numbers {
    display: flex;
    gap: 10px;
}

.page-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
}

.page-number.active {
    background-color: var(--primary-color);
    color: white;
}

.page-number:hover:not(.active) {
    background-color: #f8f9fa;
}

.page-dots {
    display: flex;
    align-items: center;
    color: var(--gray-color);
}

.newsletter-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e5fcc 100%);
    color: white;
    text-align: center;
}

.newsletter-form {
    display: flex;
    gap: 15px;
    max-width: 500px;
    margin: 30px auto;
}

.newsletter-form input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.form-note {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 15px;
}

.form-note a {
    color: white;
    text-decoration: underline;
}

.archive-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.archive-years {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.year-link {
    padding: 10px 25px;
    background-color: white;
    border-radius: var(--border-radius);
    color: var(--dark-color);
    font-weight: 500;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.year-link:hover {
    background-color: var(--primary-color);
    color: white;
}

.monthly-archive {
    max-width: 800px;
    margin: 0 auto;
}

.month-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.month-link {
    padding: 15px;
    background-color: white;
    border-radius: var(--border-radius);
    text-align: center;
    color: var(--dark-color);
    font-weight: 500;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.month-link:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 关于页面样式 */
.mission-section {
    padding: 80px 0;
}

.mission-content {
    display: flex;
    gap: 50px;
    align-items: center;
}

.mission-points {
    margin-top: 30px;
}

.point {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.point-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.point-content h4 {
    margin-bottom: 8px;
    color: var(--dark-color);
}

.website-intro {
    padding: 80px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.service-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.disclaimer-box {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 30px;
    border-radius: var(--border-radius);
    margin-top: 50px;
}

.disclaimer-box h3 {
    margin-bottom: 15px;
    color: #856404;
}

.disclaimer-box ul {
    padding-left: 20px;
    margin-top: 15px;
}

.disclaimer-box li {
    margin-bottom: 8px;
}

.content-features {
    padding: 80px 0;
}

.features-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 40px;
    justify-content: center;
}

.tab-button {
    padding: 15px 30px;
    background-color: #f8f9fa;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tab-button.active {
    background-color: var(--primary-color);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content-inner {
    display: flex;
    gap: 50px;
    align-items: center;
}

.team-section {
    padding: 80px 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.team-member {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
}

.member-avatar {
    font-size: 3rem;
    margin-bottom: 20px;
}

.member-role {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 15px;
}

.team-values {
    margin-top: 60px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.value-card {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
}

.contact-section {
    padding: 80px 0;
    background-color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-methods {
    margin-top: 30px;
}

.contact-method {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.method-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-form-container {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: var(--border-radius);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(51, 117, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .news-layout {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .tab-content-inner {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .mission-content {
        flex-direction: column;
    }
    
    .content-card {
        flex-direction: column;
    }
    
    .content-image {
        width: 100%;
        max-width: 400px;
    }
    
    .setup-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-visual {
        margin-bottom: 20px;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .platform-tabs {
        flex-direction: column;
    }
    
    .platform-tab {
        text-align: center;
        border-bottom: 1px solid #e9ecef;
        border-right: none;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

/* 文章详情页面样式 */
.article-main {
    padding: 40px 0 80px;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

.article-header {
    margin-bottom: 40px;
}

.article-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    color: var(--gray-color);
    font-size: 0.95rem;
}

.article-category {
    background-color: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.article-title {
    font-size: 2.5rem;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.article-excerpt {
    font-size: 1.2rem;
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.article-share {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 25px;
}

.share-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition);
}

.share-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.article-featured-image {
    margin-bottom: 40px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.article-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.image-caption {
    text-align: center;
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-top: 10px;
    font-style: italic;
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-body h2 {
    font-size: 1.8rem;
    margin: 50px 0 20px;
    color: var(--dark-color);
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

.article-body h3 {
    font-size: 1.4rem;
    margin: 40px 0 15px;
    color: var(--dark-color);
}

.article-body h4 {
    font-size: 1.2rem;
    margin: 30px 0 10px;
    color: var(--dark-color);
}

.article-body p {
    margin-bottom: 25px;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.feature-item {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.comparison-table {
    margin: 30px 0;
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: var(--dark-color);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.ui-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.code-example {
    background-color: #2d2d2d;
    color: #f8f8f2;
    padding: 25px;
    border-radius: var(--border-radius);
    margin: 30px 0;
    overflow-x: auto;
}

.code-example h4 {
    color: #f8f8f2;
    margin-top: 0;
    margin-bottom: 15px;
}

.code-example pre {
    margin: 0;
}

.code-example code {
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
}

.update-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.update-step {
    text-align: center;
    padding: 25px 15px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
}

.update-step .step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin: 0 auto 15px;
}

.user-feedback {
    margin: 40px 0;
}

.user-feedback blockquote {
    background-color: #f8f9fa;
    padding: 25px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    margin-bottom: 20px;
    font-style: italic;
}

.user-feedback cite {
    display: block;
    margin-top: 15px;
    font-style: normal;
    font-weight: 500;
    color: var(--gray-color);
}

.issues-list {
    margin: 30px 0;
}

.issue {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
}

.article-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin: 40px 0;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.article-share-bottom {
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    margin: 40px 0;
}

.share-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.share-buttons .share-btn {
    padding: 12px 25px;
    border-radius: var(--border-radius);
    font-weight: 500;
    min-width: 160px;
}

.share-buttons .twitter {
    background-color: #1da1f2;
    color: white;
}

.share-buttons .telegram {
    background-color: #0088cc;
    color: white;
}

.share-buttons .reddit {
    background-color: #ff4500;
    color: white;
}

.author-info {
    display: flex;
    gap: 25px;
    align-items: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    margin: 40px 0;
}

.author-avatar {
    font-size: 3rem;
    flex-shrink: 0;
}

.author-details h4 {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 相关文章 */
.related-articles {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid #eee;
}

.related-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.related-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.related-card a {
    display: block;
    color: inherit;
}

.related-image {
    height: 180px;
    overflow: hidden;
}

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

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

.related-content {
    padding: 20px;
}

.related-content h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
    line-height: 1.4;
}

.related-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--gray-color);
    margin-top: 15px;
}

/* 评论区域 */
.comments-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid #eee;
}

.comments-section h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.comments-list {
    margin-bottom: 50px;
}

.comment {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 25px;
}

.comment-header {
    margin-bottom: 15px;
}

.comment-author {
    display: flex;
    gap: 15px;
    align-items: center;
}

.author-avatar {
    width: 40px;
    height: 40px;
    background-color: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.author-info h4 {
    margin-bottom: 5px;
    font-size: 1rem;
}

.comment-date {
    font-size: 0.85rem;
    color: var(--gray-color);
}

.comment-body {
    margin-bottom: 15px;
    line-height: 1.6;
}

.comment-actions {
    display: flex;
    gap: 15px;
}

.like-btn, .reply-btn {
    padding: 8px 15px;
    background-color: #f8f9fa;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.like-btn:hover, .reply-btn:hover {
    background-color: #e9ecef;
}

.like-btn.liked {
    background-color: #e3f2fd;
    color: var(--primary-color);
}

.comment-form {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.comment-form h4 {
    margin-bottom: 25px;
    font-size: 1.3rem;
    color: var(--dark-color);
}

/* 法律页面样式 */
.legal-content .container {
    max-width: 900px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .article-content {
        padding: 30px;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .feature-list,
    .ui-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .article-content {
        padding: 20px;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .update-steps {
        grid-template-columns: 1fr;
    }
    
    .author-info {
        flex-direction: column;
        text-align: center;
    }
    
    .share-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .share-buttons .share-btn {
        width: 100%;
        max-width: 250px;
    }
}

@media (max-width: 480px) {
    .article-title {
        font-size: 1.6rem;
    }
    
    .article-body h2 {
        font-size: 1.5rem;
    }
    
    .article-body h3 {
        font-size: 1.3rem;
    }
    
    .comment-form {
        padding: 20px;
    }
}