* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* Banner */
.banner-container {	
    overflow: hidden;
    position: relative;
    width: 100%;
    margin-bottom: 0;
    background: #ffffff;
    border-bottom: 2px solid #000000;
}

#top-banner {
    display: block;
    width: 100%;
}

#top-banner img {
    width: 100%;
    height: auto;
    cursor: pointer;
    display: block;
}

/* 导航栏 */
.navbar {
    background: #f5f5f5;
    padding: 1rem 0;
    position: sticky;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-bottom: 2px solid #000000;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #000000;
    letter-spacing: 2px;
}

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

.nav-menu a {
    color: #000000;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-menu a:hover {
    background: #000000;
    color: #ffffff;
}

/* 主视觉区 */
.hero {
    margin-top: 70px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 4rem 2rem;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    animation: fadeInLeft 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    color: #2d3748;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #4a5568;
    margin-bottom: 2rem;
}

.cta-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.hero-image {
    animation: fadeInRight 1s ease-out;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

/* 占位图片样式 */
.placeholder-image {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    font-size: 2rem;
    font-weight: bold;
    color: white;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.hero-placeholder {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-placeholder span {
    font-size: 2.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

/* 特色功能 */
.features {
    margin-top: 0;
    padding: 5rem 2rem;
    background: #ffffff;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2d3748;
}

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

.feature-card {
    background: #ffffff;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid #e0e0e0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    border-color: #000000;
    background: #000000;
    color: #ffffff;
}

.feature-card:hover h3,
.feature-card:hover p {
    color: #ffffff;
}

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2d3748;
}

.feature-card p {
    color: #4a5568;
}

/* 游戏介绍 */
.game-intro {
    background: #ffffff;
    padding: 3rem;
    border-radius: 15px;
    border: 2px solid #e0e0e0;
    max-width: 900px;
    margin: 0 auto;
}

.game-intro p {
    font-size: 1.2rem;
    line-height: 2;
    color: #333;
    text-align: left;
    margin: 0;
}

/* 登录器下载按钮 */
.download-section {
    padding: 3rem 2rem;
    background: #ffffff;
    text-align: center;
}

.download-button {
    display: inline-block;
    width: 300px;
    height: 80px;
    line-height: 80px;
    background: #000000;
    color: #ffffff;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
    border-radius: 10px;
    transition: all 0.3s;
    border: 2px solid #000000;
}

.download-button:hover {
    background: #ffffff;
    color: #000000;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* 游戏画廊 */
.gallery {
    padding: 5rem 2rem;
    background: #ffffff;
}

.gallery .section-title {
    color: #2d3748;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    cursor: pointer;
    background: transparent;
    border: 2px solid #e0e0e0;
}

.gallery-item:hover {
    border-color: #000000;
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s;
}

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

.gallery-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    transition: transform 0.5s;
}

.gallery-item:hover .gallery-placeholder {
    transform: scale(1.05);
}

.gallery-placeholder span {
    font-size: 2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    color: white;
    font-size: 1.5rem;
}

/* 奖励展示 */
.rewards {
    padding: 5rem 2rem;
    background: white;
}

.rewards-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.reward-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.reward-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

.reward-placeholder span {
    font-size: 8rem;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.2));
}

.reward-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #2d3748;
}

.reward-text ul {
    list-style: none;
    margin-bottom: 2rem;
}

.reward-text li {
    font-size: 1.2rem;
    padding: 0.8rem 0;
    color: #4a5568;
    border-bottom: 1px solid #e2e8f0;
}

/* 页脚 */
.footer {
    background: #ffffff;
    color: #000000;
    min-height: 80px;
    padding: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-top: 2px solid #e0e0e0;
    width: 80%;
    margin: 5rem auto 0;
}

.footer .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.footer p {
    margin: 0;
}

.filing-number {
    font-size: 0.9rem;
    color: #666;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: #000000;
    text-decoration: none;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border: 1px solid #000000;
    border-radius: 5px;
}

.social-links a:hover {
    background: #000000;
    color: #ffffff;
}

/* 动画 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero .container,
    .rewards-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .footer .container {
        flex-direction: column;
        gap: 1rem;
    }
}