/* 公共变量定义 */
:root {
    --primary-color: #3498db;
    --primary-light: #5dade2;
    --secondary-color: #2ecc71;
    --accent-color: #9b59b6;
    --warning-color: #e74c3c;
    --text-color: #333;
    --bg-color: #fff;
    --sidebar-bg: #f8f9fa;
    --header-bg: #fff;
    --card-bg: #fff;
    --shadow: 0 5px 15px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
    --border-radius: 12px;
    --gradient: linear-gradient(135deg, #3498db, #2ecc71);
    --stats-height: 56px;
}

/* 暗黑模式 */
.dark-mode {
    --primary-color: #4da8da;
    --secondary-color: #27ae60;
    --accent-color: #a66bbe;
    --warning-color: #e74c3c;
    --text-color: #f0f0f0;
    --bg-color: #1a1a1a;
    --sidebar-bg: #2d2d2d;
    --header-bg: #2d2d2d;
    --card-bg: #333;
    --shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
    line-height: 1.6;
    padding-bottom: 60px; /* 为移动端底部导航留出空间 */
}

.container {
    max-width: 1258px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航 */
.header {
    background-color: var(--header-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    display: flex;
    gap: 25px;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.search-icon, .dark-mode-toggle {
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
}

.search-icon:hover, .dark-mode-toggle:hover {
    background-color: rgba(0,0,0,0.05);
}

.update-license {
            display: flex;
            align-items: center;
            color: #7f8c8d;
            font-size: 0.95rem;
}
        
.update-license i {
            margin-right: 8px;
            color: #3498db;
 }
.license-badge {
            display: inline-block;
            background: #f8f9fa;
            border: 1px solid #e9ecef;
            border-radius: 4px;
            padding: 4px 10px;
            font-size: 0.85rem;
            margin-right: 8px;
            color: #495057;
  }
 .license-badge.mit {
            background: #e8f5e9;
            border-color: #c8e6c9;
            color: #2e7d32;
  }

/* 悬浮统计数据栏 */
.floating-stats {
    position: fixed; 
    left: 0;
    right: 0;
    background: var(--gradient);
    color: white;
    padding: 15px 0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    z-index: 99;
    transform: translateY(0);
    transition: transform 0.4s ease, height 0.4s ease;
    height: var(--stats-height);
}

.floating-stats.hidden {
    transform: translateY(-100%);
    height: 0;
    padding: 0;
    overflow: hidden;
}

.floating-stats .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: opacity 0.3s ease;
}

.floating-stats.hidden .container {
    opacity: 0;
}

.stats {
    display: flex;
    gap: 30px;
    overflow-x: auto;
}

.stats::-webkit-scrollbar {
    height: 4px;
}

.stats::-webkit-scrollbar-track {
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
}

.stats::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.stat-item i {
    font-size: 1.3rem;
}

.close-stats {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.close-stats:hover {
    background: rgba(255,255,255,0.3);
    transform: rotate(90deg);
}

/* 统计栏恢复按钮 */
.stats-restore {
    position: fixed;
    right: 80px;
    background: var(--gradient);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: var(--transition);
    z-index: 98;
    opacity: 0;
    visibility: hidden;
}

.stats-restore.show {
    opacity: 1;
    visibility: visible;
}

.stats-restore:hover {
    transform: scale(1.1);
}

/* 移动端统计按钮 */
.mobile-stats-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.8rem;
    gap: 5px;
    transition: var(--transition);
    position: relative;
}

.mobile-stats-btn.active,
.mobile-stats-btn:hover {
    color: var(--primary-color);
}

.stats-indicator {
    position: absolute;
    top: -5px;
    right: 5px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--warning-color);
    opacity: 0;
    transition: var(--transition);
}

.stats-indicator.show {
    opacity: 1;
}

/* 搜索模态框 */
.search-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.search-content {
    background-color: var(--bg-color);
    padding: 35px;
    border-radius: var(--border-radius);
    width: 85%;
    max-width: 700px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
    transform: translateY(20px);
    animation: slideUp 0.3s ease forwards;
}

@keyframes slideUp {
    to { transform: translateY(0); }
}

.search-box {
    display: flex;
    margin-bottom: 25px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.search-box input {
    flex-grow: 1;
    padding: 15px 20px;
    border: none;
    font-size: 1.1rem;
    outline: none;
    transition: var(--transition);
    background: var(--card-bg);
    color: var(--text-color);
}

.search-box input:focus {
    background: rgba(52, 152, 219, 0.05);
}

.search-box button {
    padding: 0 25px;
    background: var(--gradient);
    color: white;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    font-size: 1rem;
}

.search-box button:hover {
    opacity: 0.9;
}

.hot-searches h4 {
    margin-bottom: 15px;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.hot-search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hot-search-tags span {
    background-color: var(--card-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 3px 8px rgba(0,0,0,0.08);
}

.hot-search-tags span:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.close-search {
    position: absolute;
    top: 25px;
    right: 25px;
    color: white;
    font-size: 32px;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
}

.close-search:hover {
    transform: rotate(90deg);
    background: rgba(255,255,255,0.2);
}

/* 移动端底部导航栏 */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--header-bg);
    box-shadow: 0 -3px 10px rgba(0,0,0,0.1);
    display: none;
    z-index: 100;
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.8rem;
    gap: 5px;
    transition: var(--transition);
}

.mobile-nav-item i {
    font-size: 1.2rem;
}

.mobile-nav-item.active,
.mobile-nav-item:hover {
    color: var(--primary-color);
}

/* 页脚 */
.footer {
    background-color: var(--sidebar-bg);
    padding: 40px 0;
    margin-top: 50px;
    text-align: center;
    color: #777;
}

.footer p {
    margin-bottom: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-links {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .stats {
        gap: 15px;
        justify-content: flex-start;
        width: 100%;
    }
    
    .floating-stats .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .stats-restore {
        top: 15px;
        right: 60px;
    }
    
    .mobile-bottom-nav {
        display: block;
    }
}


        /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 50px;
        }

        .page-item {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            background-color: var(--card-bg);
            color: var(--text-color);
            text-decoration: none;
            transition: var(--transition);
            font-weight: 500;
        }

        .page-item:hover {
            background-color: var(--primary-color);
            color: white;
        }

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

        .page-item.disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }