/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 浅色主题 */
    --light-bg: #ffffff;
    --light-surface: #f8f9fa;
    --light-primary: #2c3e50;
    --light-secondary: #34495e;
    --light-accent: #3498db;
    --light-text: #2c3e50;
    --light-text-secondary: #7f8c8d;
    --light-border: #e9ecef;
    --light-shadow: rgba(0, 0, 0, 0.1);
    
    /* 深色主题 */
    --dark-bg: #1a1a1a;
    --dark-surface: #2d2d2d;
    --dark-primary: #ffffff;
    --dark-secondary: #b0b0b0;
    --dark-accent: #4fc3f7;
    --dark-text: #ffffff;
    --dark-text-secondary: #b0b0b0;
    --dark-border: #404040;
    --dark-shadow: rgba(0, 0, 0, 0.3);
    
    /* iOS26液态玻璃主题 */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-bg-dark: rgba(30, 30, 30, 0.7);
    --glass-surface: rgba(255, 255, 255, 0.2);
    --glass-surface-dark: rgba(40, 40, 40, 0.8);
    --glass-primary: #ffffff;
    --glass-accent: #7c3aed;
    --glass-text: #ffffff;
    --glass-text-secondary: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    
    /* 过渡动画 */
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    transition: var(--transition);
}

body.light-theme {
    background-color: var(--light-bg);
    color: var(--light-text);
}

body.dark-theme {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

/* iOS26液态玻璃主题样式 */
body.glass-theme {
    background: linear-gradient(135deg, #8B5CF6, #EC4899, #3B82F6, #10B981);
    background-size: 400% 400%;
    color: var(--glass-text);
    animation: glassGradientAnimation 15s ease infinite;
    min-height: 100vh;
}

@keyframes glassGradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 玻璃主题下的导航栏 - 增强兼容性 */
.glass-theme .navbar {
    /* 基础背景色，确保在不支持backdrop-filter的浏览器中也能显示 */
    background: rgba(255, 255, 255, 0.2);
    
    /* 浏览器兼容性前缀 */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px); /* Safari */
    -moz-backdrop-filter: blur(20px); /* Firefox */
    -ms-backdrop-filter: blur(20px); /* IE/Edge */
    -o-backdrop-filter: blur(20px); /* Opera */
    
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.glass-theme .nav-logo {
    color: var(--glass-primary);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.glass-theme .nav-link {
    color: var(--glass-text);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.glass-theme .nav-link:hover,
.glass-theme .nav-link.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--glass-primary);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.glass-theme .theme-toggle button {
    color: var(--glass-text);
    background-color: rgba(255, 255, 255, 0.1);
}

.glass-theme .theme-toggle button:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.light-theme .navbar {
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid var(--light-border);
}

.dark-theme .navbar {
    background: rgba(26, 26, 26, 0.9);
    border-bottom: 1px solid var(--dark-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    gap: 0.5rem;
}

.logo-image {
    height: 30px;
    width: auto;
    vertical-align: middle;
}

.light-theme .nav-logo {
    color: var(--light-primary);
}

.dark-theme .nav-logo {
    color: var(--dark-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin-left: auto;
}

.nav-link {
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

.light-theme .nav-link {
    color: var(--light-text);
}

.light-theme .nav-link:hover,
.light-theme .nav-link.active {
    background-color: var(--light-accent);
    color: white;
}

.dark-theme .nav-link {
    color: var(--dark-text);
}

.dark-theme .nav-link:hover,
.dark-theme .nav-link.active {
    background-color: var(--dark-accent);
    color: white;
}

.theme-toggle button {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.light-theme .theme-toggle button {
    color: var(--light-text);
}

.light-theme .theme-toggle button:hover {
    background-color: var(--light-surface);
}

.dark-theme .theme-toggle button {
    color: var(--dark-text);
}

.dark-theme .theme-toggle button:hover {
    background-color: var(--dark-surface);
}

/* 主内容区域 */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 160px);
}

/* 玻璃主题下的页面标题 */
.glass-theme .hero-content h1 {
    background: linear-gradient(45deg, #ffffff, #e0e0e0);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.glass-theme .hero-content p {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    opacity: 0.9;
}

/* 玻璃主题下的按钮 */
.glass-theme .join-btn {
    /* 基础背景色，确保在不支持backdrop-filter的浏览器中也能显示 */
    background: rgba(255, 255, 255, 0.25);
    
    /* 浏览器兼容性前缀 */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* Safari */
    -moz-backdrop-filter: blur(10px); /* Firefox */
    -ms-backdrop-filter: blur(10px); /* IE/Edge */
    -o-backdrop-filter: blur(10px); /* Opera */
    
    border: 1px solid var(--glass-border);
    color: var(--glass-text);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.glass-theme .join-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page {
    display: none;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.page.active {
    display: block;
}

/* 首页样式 */
.hero-section {
    text-align: center;
    padding: 4rem 0;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #3498db, #2ecc71);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.server-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.info-card {
    padding: 2rem;
    border-radius: 1rem;
    transition: var(--transition);
}

.light-theme .info-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .info-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

.glass-theme .info-card {
    /* 基础背景色，确保在不支持backdrop-filter的浏览器中也能显示 */
    background: rgba(255, 255, 255, 0.2);
    
    /* 浏览器兼容性前缀 */
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px); /* Safari */
    -moz-backdrop-filter: blur(15px); /* Firefox */
    -ms-backdrop-filter: blur(15px); /* IE/Edge */
    -o-backdrop-filter: blur(15px); /* Opera */
    
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.glass-theme .info-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

.info-card i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #3498db;
}

.info-card h3 {
    margin-bottom: 0.5rem;
}

.join-btn {
    background: linear-gradient(45deg, #3498db, #2ecc71);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: var(--transition);
}

.join-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(52, 152, 219, 0.3);
}

/* 特色区域 */
.features-section {
    padding: 4rem 0;
}

.features-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.glass-theme .features-section h2 {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: var(--transition);
}

.light-theme .feature-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .feature-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

.glass-theme .feature-card {
    /* 基础背景色，确保在不支持backdrop-filter的浏览器中也能显示 */
    background: rgba(255, 255, 255, 0.2);
    
    /* 浏览器兼容性前缀 */
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px); /* Safari */
    -moz-backdrop-filter: blur(15px); /* Firefox */
    -ms-backdrop-filter: blur(15px); /* IE/Edge */
    -o-backdrop-filter: blur(15px); /* Opera */
    
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.glass-theme .feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px) scale(1.02);
}

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

.feature-card .feature-icon i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #3498db;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
}

.feature-card h3 + i {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2ecc71;
    display: inline-block;
}

/* 状态页面样式 */
.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.status-card {
    background: var(--light-surface);
    border: 1px solid var(--light-border);
    border-radius: 1rem;
    padding: 2rem;
    transition: var(--transition);
}

.dark-theme .status-card {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.glass-theme .status-card {
    /* 基础背景色，确保在不支持backdrop-filter的浏览器中也能显示 */
    background: rgba(255, 255, 255, 0.2);
    
    /* 浏览器兼容性前缀 */
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px); /* Safari */
    -moz-backdrop-filter: blur(15px); /* Firefox */
    -ms-backdrop-filter: blur(15px); /* IE/Edge */
    -o-backdrop-filter: blur(15px); /* Opera */
    
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.glass-theme .status-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px) scale(1.01);
}

.status-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.status-header h3 {
    margin: 0;
    color: var(--light-text);
    font-size: 1.5rem;
}

.dark-theme .status-header h3 {
    color: var(--dark-text);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.status-indicator.online {
    background: rgba(46, 204, 113, 0.1);
    color: #2ecc71;
}

.status-indicator.offline {
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
}

.status-indicator.maintenance {
    background: rgba(243, 156, 18, 0.1);
    color: #f39c12;
}

.status-info {
    margin-bottom: 1.5rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--light-border);
}

.dark-theme .info-item {
    border-bottom-color: var(--dark-border);
}

.info-item:last-child {
    border-bottom: none;
}

.info-item .label {
    color: #666;
    font-weight: 500;
}

.dark-theme .info-item .label {
    color: #aaa;
}

.info-item .value {
    color: var(--light-text);
    font-weight: 600;
}

.dark-theme .info-item .value {
    color: var(--dark-text);
}

.progress-bar {
    height: 8px;
    background: var(--light-border);
    border-radius: 4px;
    overflow: hidden;
}

.dark-theme .progress-bar {
    background: var(--dark-border);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #2ecc71, #27ae60);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* 可用度部分 */
.availability-section {
    margin: 3rem 0;
}

.availability-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--light-text);
}

.dark-theme .availability-section h2 {
    color: var(--dark-text);
}

.availability-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.availability-card {
    background: var(--light-surface);
    border: 1px solid var(--light-border);
    border-radius: 1rem;
    padding: 2rem;
}

.dark-theme .availability-card {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.availability-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.availability-header h3 {
    margin: 0;
    color: var(--light-text);
}

.dark-theme .availability-header h3 {
    color: var(--dark-text);
}

.availability-score {
    text-align: right;
}

.availability-score .score {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2ecc71;
}

.availability-score .label {
    font-size: 0.875rem;
    color: #666;
}

.dark-theme .availability-score .label {
    color: #aaa;
}

/* 可用度图表 */
.availability-chart {
    display: flex;
    justify-content: space-between;
    align-items: end;
    height: 150px;
    gap: 0.5rem;
}

.chart-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.chart-item .day {
    font-size: 0.75rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.dark-theme .chart-item .day {
    color: #aaa;
}

.chart-bar {
    width: 100%;
    height: 80px;
    background: var(--light-border);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.dark-theme .chart-bar {
    background: var(--dark-border);
}

.bar-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, #2ecc71, #27ae60);
    border-radius: 4px;
    transition: height 0.3s ease;
}

.chart-item .percent {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--light-text);
    margin-top: 0.5rem;
}

.dark-theme .chart-item .percent {
    color: var(--dark-text);
}

/* 节点对比 */
.node-comparison {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.comparison-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.comparison-item .node-name {
    min-width: 80px;
    font-weight: 600;
    color: var(--light-text);
}

.dark-theme .comparison-item .node-name {
    color: var(--dark-text);
}

.availability-bar {
    flex: 1;
    height: 12px;
    background: var(--light-border);
    border-radius: 6px;
    overflow: hidden;
}

.dark-theme .availability-bar {
    background: var(--dark-border);
}

.availability-bar .bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #2ecc71, #27ae60);
    border-radius: 6px;
}

.comparison-item .percentage {
    min-width: 50px;
    font-weight: 600;
    color: #2ecc71;
    text-align: right;
}

/* 服务器统计 */
.server-stats-summary {
    margin-top: 3rem;
}

.summary-card {
    background: var(--light-surface);
    border: 1px solid var(--light-border);
    border-radius: 1rem;
    padding: 2rem;
}

.dark-theme .summary-card {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.summary-card h3 {
    margin: 0 0 1.5rem 0;
    color: var(--light-text);
    text-align: center;
}

.dark-theme .summary-card h3 {
    color: var(--dark-text);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
    background: var(--light-surface);
    border: 1px solid var(--light-border);
    border-radius: 0.5rem;
    transition: var(--transition);
}

.dark-theme .stat-item {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-item i {
    font-size: 2rem;
    color: #3498db;
    margin-bottom: 0.5rem;
}

.stat-item .label {
    font-size: 0.875rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.dark-theme .stat-item .label {
    color: #aaa;
}

.stat-item .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light-text);
}

.dark-theme .stat-item .value {
    color: var(--dark-text);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .availability-grid {
        grid-template-columns: 1fr;
    }
    
    .availability-chart {
        height: 120px;
    }
    
    .chart-bar {
        height: 60px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .status-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .availability-chart {
        height: 100px;
    }
    
    .chart-item .day {
        font-size: 0.625rem;
    }
    
    .chart-item .percent {
        font-size: 0.625rem;
    }
}

.server-stats h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: var(--transition);
}

.light-theme .stat-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .stat-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

.stat-card i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #3498db;
}

/* 下载页面样式 */
.downloads-section h1 {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.section-desc {
    text-align: center;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.download-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: var(--transition);
}

.light-theme .download-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .download-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

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

.download-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #3498db;
}

.download-info {
    display: flex;
    justify-content: space-around;
    margin: 1rem 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-btn {
    background: #3498db;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 auto;
}

.download-btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.installation-guide {
    text-align: center;
}

.installation-guide h2 {
    margin-bottom: 2rem;
}

.guide-steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.step {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.step-number {
    background: #3498db;
    color: white;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* 关于页面样式 */
.about-section h1 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.about-content > div {
    margin-bottom: 3rem;
}

.about-content h2 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.about-story p {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.team-grid,
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.team-card,
.contact-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: var(--transition);
}

.light-theme .team-card,
.light-theme .contact-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .team-card,
.dark-theme .contact-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

.team-avatar,
.contact-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #3498db;
}

.rules-list {
    max-width: 600px;
    margin: 0 auto;
}

.rule-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
}

.light-theme .rule-item {
    background: var(--light-surface);
}

.dark-theme .rule-item {
    background: var(--dark-surface);
}

.rule-item i {
    color: #2ecc71;
}

/* 赞助页面样式 */
.donate-section h1 {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.donate-benefits h2,
.donate-tiers h2,
.donate-methods h2,
.donate-stats h2,
.donor-wall h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.benefit-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: var(--transition);
}

.light-theme .benefit-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .benefit-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

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

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #f39c12;
}

.tiers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.tier-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.light-theme .tier-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .tier-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

.tier-card.featured {
    border: 2px solid #f39c12;
    transform: scale(1.05);
}

.tier-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: #f39c12;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: bold;
}

.tier-header h3 {
    margin-bottom: 1rem;
}

.tier-price {
    font-size: 2.5rem;
    font-weight: bold;
    color: #f39c12;
    margin-bottom: 1.5rem;
}

.tier-price span {
    font-size: 1rem;
    opacity: 0.7;
}

.tier-features {
    list-style: none;
    margin-bottom: 2rem;
}

.tier-features li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tier-features i {
    color: #2ecc71;
}

.donate-btn {
    background: linear-gradient(45deg, #f39c12, #e67e22);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 auto;
}

.donate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(243, 156, 18, 0.3);
}

.methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.method-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: var(--transition);
}

.light-theme .method-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .method-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

.method-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.method-card:nth-child(1) .method-icon {
    color: #1677ff;
}

.method-card:nth-child(2) .method-icon {
    color: #07c160;
}

.method-card:nth-child(3) .method-icon {
    color: #ff6b35;
}

.qr-code {
    margin-top: 1rem;
}

.qr-placeholder {
    width: 150px;
    height: 150px;
    border: 2px dashed;
    border-radius: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 0.875rem;
}

.light-theme .qr-placeholder {
    border-color: var(--light-border);
    color: var(--light-text-secondary);
}

.dark-theme .qr-placeholder {
    border-color: var(--dark-border);
    color: var(--dark-text-secondary);
}

.bank-info {
    text-align: left;
    font-size: 0.9rem;
    line-height: 1.8;
}

.donor-wall {
    margin-top: 4rem;
}

.donor-list {
    display: grid;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.donor-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    transition: var(--transition);
}

.light-theme .donor-item {
    background: var(--light-surface);
    box-shadow: 0 2px 4px var(--light-shadow);
}

.dark-theme .donor-item {
    background: var(--dark-surface);
    box-shadow: 0 2px 4px var(--dark-shadow);
}

.donor-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(45deg, #3498db, #2ecc71);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
}

.donor-info {
    flex: 1;
}

.donor-info h4 {
    margin: 0;
    font-size: 1rem;
}

.donor-level {
    font-size: 0.875rem;
    opacity: 0.7;
}

.donor-amount {
    font-weight: bold;
    color: #f39c12;
}

/* 下载链接样式 */
.download-link {
    color: #3498db;
    text-decoration: none;
    transition: var(--transition);
}

.download-link:hover {
    text-decoration: underline;
    color: #2980b9;
}

.light-theme .download-link {
    color: var(--light-accent);
}

.dark-theme .download-link {
    color: var(--dark-accent);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .server-info {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .status-grid,
    .stats-grid,
    .downloads-grid,
    .team-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-steps {
        flex-direction: column;
        align-items: center;
    }
}

/* 最新公告样式 */
.latest-updates {
    padding: 4rem 0;
    text-align: center;
}

.latest-updates h2 {
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

.updates-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.update-card {
    padding: 2rem;
    border-radius: 1rem;
    text-align: left;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.light-theme .update-card {
    background: var(--light-surface);
    box-shadow: 0 4px 6px var(--light-shadow);
}

.dark-theme .update-card {
    background: var(--dark-surface);
    box-shadow: 0 4px 6px var(--dark-shadow);
}

.update-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.update-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.update-date {
    font-size: 0.9rem;
    opacity: 0.8;
}

.update-badge {
    background: linear-gradient(45deg, #e74c3c, #c0392b);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.update-badge.secondary {
    background: linear-gradient(45deg, #3498db, #2980b9);
}

.update-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
}

.update-card p {
    opacity: 0.9;
    line-height: 1.6;
}

/* 加入区域样式 */
.join-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    color: white;
    text-align: center;
    margin-top: 2rem;
}

.join-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
}

.join-text {
    margin-bottom: 2rem;
}

.join-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.join-text p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.join-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.join-btn {
    background: white;
    color: #3498db;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.join-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(255, 255, 255, 0.3);
}

.join-btn.copied {
    animation: copied 2s ease;
}

@keyframes copied {
    0% {
        background: white;
        color: #3498db;
    }
    50% {
        background: #2ecc71;
        color: white;
    }
    100% {
        background: white;
        color: #3498db;
    }
}

.server-address {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: 'Courier New', monospace;
    font-weight: 600;
    font-size: 1.1rem;
    backdrop-filter: blur(10px);
}

/* 页脚样式 */
footer {
    background: var(--light-surface);
    border-top: 1px solid var(--light-border);
    padding: 2rem 0;
    margin-top: auto;
    text-align: center;
    transition: var(--transition);
}

.dark-theme footer {
    background: var(--dark-surface);
    border-top-color: var(--dark-border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content p {
    margin: 0.5rem 0;
    color: var(--light-text-secondary);
    font-size: 0.9rem;
}

.dark-theme .footer-content p {
    color: var(--dark-text-secondary);
}

.footer-links {
    margin: 1rem 0;
}

.footer-links a {
    color: var(--light-accent);
    text-decoration: none;
    margin: 0 1rem;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--light-accent-hover);
    text-decoration: underline;
}

.dark-theme .footer-links a {
    color: var(--dark-accent);
}

.dark-theme .footer-links a:hover {
    color: var(--dark-accent-hover);
}

.footer-social {
    margin: 1rem 0;
}

.footer-social a {
    color: var(--light-text-secondary);
    font-size: 1.2rem;
    margin: 0 0.5rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--light-accent);
    transform: translateY(-2px);
}

.dark-theme .footer-social a {
    color: var(--dark-text-secondary);
}

.dark-theme .footer-social a:hover {
    color: var(--dark-accent);
}

@media (max-width: 768px) {
    footer {
        padding: 1.5rem 0;
    }
    
    .footer-links a {
        display: block;
        margin: 0.5rem 0;
    }
    
    .footer-social a {
        margin: 0 0.25rem;
    }
}