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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

.section {
    padding: 80px 0;
}

.section-light {
    background-color: #f0f2f5;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background-color: #3498db;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

/* 导航栏样式 */
.navbar {
    background-color: rgba(44, 62, 80, 0.95);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    flex-direction: column;
    color: white;
    text-decoration: none;
}

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 2px;
}

.logo span {
    font-size: 0.9rem;
    opacity: 0.8;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: #3498db;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #3498db;
    bottom: 0;
    left: 0;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 首页横幅 */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                url('images/hero_bg.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: 60px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-download {
    background-color: #e74c3c;
    width: 100%;
    text-align: center;
    margin-top: 20px;
}

.btn-download:hover {
    background-color: #c0392b;
}

/* 游戏下载区域 */
.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.download-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.download-card:hover {
    transform: translateY(-10px);
}

.card-header {
    background-color: #2c3e50;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1.5rem;
}

.tag {
    background-color: #e74c3c;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.tag-official {
    background-color: #3498db;
}

.card-body {
    padding: 25px;
}

.version-features {
    list-style: none;
    margin: 20px 0;
}

.version-features li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.version-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #27ae60;
    font-weight: bold;
}

.download-info {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
    color: #7f8c8d;
}

.download-info i {
    margin-right: 5px;
}

.play-note {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
}

.play-note i {
    font-size: 1.5rem;
    color: #3498db;
    margin-right: 15px;
}

/* 游戏介绍 */
.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.intro-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 游戏特色 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    font-size: 3rem;
    color: #3498db;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 游戏动态 */
.news-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.news-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #3498db;
}

.timeline-item {
    display: flex;
    margin-bottom: 40px;
    position: relative;
}

.timeline-date {
    min-width: 120px;
    background-color: #3498db;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    font-weight: bold;
    text-align: center;
    margin-right: 30px;
    position: relative;
    z-index: 1;
}

.timeline-content {
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    flex-grow: 1;
}

.timeline-content h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

/* 游戏截图 */
.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.screenshot-item {
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    height: 250px;
}

.screenshot-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.screenshot-item:hover img {
    transform: scale(1.05);
}

.screenshot-note {
    text-align: center;
    color: #7f8c8d;
    font-style: italic;
    font-size: 0.9rem;
}

/* 用户评价 */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-card {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.reviewer {
    display: flex;
    align-items: center;
}

.reviewer i {
    font-size: 2rem;
    color: #7f8c8d;
    margin-right: 10px;
}

.rating {
    color: #f39c12;
}

.review-content h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* 页脚 */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 40px 0;
}

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

.footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.footer-logo span {
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-info p {
    margin-bottom: 5px;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: none;
    z-index: 999;
    transition: all 0.3s;
}

.back-to-top:hover {
    background-color: #2980b9;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .download-cards {
        grid-template-columns: 1fr;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: rgba(44, 62, 80, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-logo {
        margin-bottom: 20px;
    }
    
    .news-timeline::before {
        left: 20px;
    }
    
    .timeline-date {
        min-width: 100px;
        margin-right: 20px;
    }
}

@media (max-width: 576px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 1rem;
    }
    
    .screenshot-gallery {
        grid-template-columns: 1fr;
    }
}