/* CSS变量定义 */
:root {
    --background-color: #f0f2f5;
    --text-color: #333;
    --theme-toggle-color: #ffa500;
    --header-bg: #fff;
    --header-color: #2c3e50;
    --card-bg: #fff;
    --card-shadow: rgba(0,0,0,0.1);
    --card-hover-shadow: rgba(0,0,0,0.2);
    --card-text: #2c3e50;
    --card-description: #666;
    --button-bg: #3498db;
    --button-hover: #2980b9;
    --button-text: #fff;
}

/* 深色主题 */
[data-theme="dark"] {
    --background-color: #1a1a1a;
    --text-color: #e0e0e0;
    --theme-toggle-color: #f1c40f;
    --header-bg: #242424;
    --header-color: #fff;
    --card-bg: #2d2d2d;
    --card-shadow: rgba(0,0,0,0.3);
    --card-hover-shadow: rgba(0,0,0,0.4);
    --card-text: #fff;
    --card-description: #bbb;
    --button-bg: #2980b9;
    --button-hover: #3498db;
    --button-text: #fff;
}

/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* GitHub链接样式 */
.github-link {
    position: fixed;
    top: 20px;
    left: 20px;
    padding: 10px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    color: var(--header-color);
    border: 1px solid var(--card-shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: 0 2px 4px var(--card-shadow);
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

.github-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--card-hover-shadow);
}

.github-link i {
    font-size: 1.2rem;
}

/* 主题切换按钮 */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    color: var(--theme-toggle-color);
    border: 1px solid var(--card-shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: 0 2px 4px var(--card-shadow);
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--card-hover-shadow);
}

.theme-toggle i {
    font-size: 0.9rem;
}

.language-toggle {
    right: 70px;
    color: var(--button-bg);
    font-size: 0.8rem;
    font-weight: 700;
}

/* 手机端样式 */
@media screen and (max-width: 768px) {
    .theme-toggle i {
        font-size: 1rem;
    }
}

/* 头部样式 */
.header {
    text-align: center;
    padding: 2rem 0;
    background: var(--header-bg);
    box-shadow: 0 2px 4px var(--card-shadow);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* 搜索框样式 */
.search-container {
    margin: 1.5rem auto 0;
    display: flex;
    justify-content: center;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--card-shadow);
    border-radius: 20px 0 0 20px;
    font-size: 1rem;
    outline: none;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: var(--button-bg);
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

.search-button {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 0 20px 20px 0;
    padding: 10px 15px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-button:hover {
    background-color: var(--button-hover);
}

/* 搜索结果为空的样式 */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 2px 4px var(--card-shadow);
    color: var(--card-text);
    font-size: 1.2rem;
}

/* 分类导航样式 */
.categories-container {
    margin: 1.5rem auto 0;
    max-width: 800px;
    padding: 0 1rem;
}

.categories-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.category-item {
    margin: 0.25rem;
}

.category-button {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--card-shadow);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.category-button:hover {
    background-color: var(--button-bg);
    color: var(--button-text);
    border-color: var(--button-bg);
}

.category-button.active {
    background-color: var(--button-bg);
    color: var(--button-text);
    border-color: var(--button-bg);
}

/* 响应式搜索框和分类 */
@media (max-width: 768px) {
    .search-container {
        max-width: 90%;
    }
    
    .search-input {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
    
    .search-button {
        padding: 8px 12px;
    }

    .categories-container {
        max-width: 100%;
        padding: 0 0.5rem;
    }

    .category-button {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}

.header h1 {
    color: var(--header-color);
    font-size: 2.5rem;
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

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

/* 游戏网格容器 */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

/* 游戏卡片样式 */
.game-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 4px var(--card-shadow);
    cursor: pointer;
}

.game-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px var(--card-hover-shadow);
}

.game-card img {
    width: 100%;
    max-width: 200px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 15px;
}

.game-card h3 {
    color: var(--card-text);
    margin-bottom: 10px;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.game-card p {
    color: var(--card-description);
    font-size: 0.9rem;
    margin-bottom: 15px;
    transition: color 0.3s ease;
}

.play-button {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--button-bg);
    color: var(--button-text);
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.play-button:hover {
    background-color: var(--button-hover);
}

/* 即将推出的游戏按钮样式 */
.play-button.coming-soon {
    background-color: #888;
    cursor: not-allowed;
}

.play-button.coming-soon:hover {
    background-color: #777;
}

/* 响应式布局调整 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .games-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 15px;
    }

    .game-card {
        padding: 15px;
    }

    .game-card h3 {
        font-size: 1.2rem;
    }
}

/* Footer样式 */
.footer {
    margin-top: 3rem;
    padding: 2rem 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--card-shadow);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
    color: var(--text-color);
}

.footer-content p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.footer-content a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-content a:hover {
    color: var(--header-color);
}

/* Footer logo样式 */
.footer-logo {
    height: 20px;
    width: auto;
    vertical-align: middle;
    margin-right: 4px;
    display: inline-block;
    position: relative;
    top: -2px; /* 微调垂直位置 */
}

@media (max-width: 768px) {
    .footer {
        padding: 1.5rem 0;
    }
    
    .footer-content p {
        font-size: 0.8rem;
    }
}