/* CSS 变量和基础样式 */
:root {
    --light-bg: #f9f9f9;
    --dark-bg: #ffffff;
    --text-main: #333333;
    --accent-blue: #007bff;
    --accent-purple: #6f42c1;
    --accent-shadow: rgba(0, 0, 0, 0.1);
    --border-color: #e0e0e0;
    --font-main: 'Poppins', sans-serif;
    --gap-spacing: 3rem;
}

/* 全局重置 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--light-bg);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--accent-blue);
    transition: color 0.2s ease-in-out;
}

a:hover {
    color: var(--accent-purple);
}

.app-container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 头部导航 */
.header-bar {
    background-color: var(--dark-bg);
    padding: 2rem 0;
    box-shadow: 0 2px 15px var(--accent-shadow);
    border-bottom: 1px solid var(--border-color);
}

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

.site-branding {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.site-branding a {
    color: var(--text-main);
    font-weight: 600;
}

.site-branding a span {
    color: var(--accent-blue);
}

.search-form-group {
    display: flex;
    align-items: center;
    background-color: var(--light-bg);
    border-radius: 50px;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.search-form-group:focus-within {
    box-shadow: 0 0 10px var(--accent-blue);
    border-color: var(--accent-blue);
}

.search-input-field {
    background: none;
    border: none;
    outline: none;
    font-size: 1rem;
    width: 250px;
    padding-left: 0.5rem;
    color: var(--text-main);
}

.search-input-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    color: var(--text-main);
    font-size: 1.2rem;
    transition: color 0.2s ease;
}

.search-input-btn:hover {
    color: var(--accent-blue);
}

/* 主要内容区域 */
.content-area {
    padding-top: var(--gap-spacing);
}

.info-block {
    background-color: var(--dark-bg);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--accent-shadow);
    border: 1px solid var(--border-color);
    margin-bottom: var(--gap-spacing);
    position: relative;
    overflow: hidden;
}

.info-block::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100px;
    height: 100px;
    background: rgba(0, 123, 255, 0.05);
    border-radius: 50%;
}

.section-headline {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border-left: 3px solid var(--accent-blue);
    padding-left: 1rem;
}

/* 标签 */
.tags-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: var(--gap-spacing);
}

.tag-link {
    background-color: var(--dark-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tag-link:hover {
    background-color: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.2);
}

/* 游戏列表 */
.game-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.item-card-wrapper {
    display: block;
    cursor: pointer;
}

.item-card {
    background-color: var(--dark-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--accent-shadow);
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease;
}

.item-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.card-image-box {
    width: 100%;
    height: 220px;
    background-color: #f0f0f0; /* Placeholder */
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.card-image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.item-card:hover .card-image-box img {
    transform: scale(1.1);
}

.card-details-box {
    padding: 1.5rem;
}

.card-title-main {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.card-description-text {
    color: #666666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.card-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.tag-item-small {
    background-color: var(--light-bg);
    color: #777777;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

/* 底部 */
.page-footer {
    background-color: var(--dark-bg);
    padding: 2rem 0;
    margin-top: var(--gap-spacing);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 15px var(--accent-shadow);
    text-align: center;
}

.footer-navigation {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-navigation a {
    color: #666666;
    font-weight: 500;
}

.footer-navigation a:hover {
    color: var(--accent-blue);
}

.copyright-text {
    color: #999999;
    font-size: 0.8rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1.5rem;
    }

    .search-form-group {
        width: 100%;
    }

    .search-input-field {
        width: 86%;
    }

    .info-block {
        padding: 1.5rem;
    }

    .section-headline {
        font-size: 1.5rem;
    }

    .game-grid-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .tags-row {
        gap: 0.8rem;
    }

    .footer-navigation {
        flex-direction: column;
        gap: 0.8rem;
    }
}