:root {
    --primary-color: #ff6b35;
    --secondary-color: #004e64;
    --accent-color: #ffa726;
    --text-dark: #2c2c2c;
    --text-light: #ffffff;
    --background-dark: #1a1a1a;
    --background-light: #f5f5f5;
    --gradient-primary: linear-gradient(45deg, #ff6b35, #ffa726);
    --gradient-dark: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 15px 35px rgba(0, 0, 0, 0.25);
}

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

body {
    font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    height: 40px;
    width: auto;
}

.game-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.invite-btn {
    background: var(--gradient-primary);
    color: white !important;
}

.register-btn {
    background: var(--secondary-color);
    color: white !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0, 78, 100, 0.8), rgba(255, 107, 53, 0.6));
    z-index: 1;
}

.hero-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    text-align: center;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title .title-main {
    display: block;
    font-size: 4rem;
    font-weight: 900;
    color: var(--text-light);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin-bottom: 10px;
}

.hero-title .title-sub {
    display: block;
    font-size: 2rem;
    color: var(--accent-color);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--text-dark);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-color);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-light);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 通用区域样式 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* 游戏特色 */
.features {
    padding: 80px 0;
    background: var(--background-light);
}

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

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1;
}

.feature-card:hover::before {
    left: 0;
    opacity: 0.1;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
    position: relative;
    z-index: 2;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

/* 游戏截图 */
.screenshots {
    padding: 80px 0;
    background: var(--background-dark);
}

.screenshots .section-title {
    color: var(--text-light);
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.screenshot-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
}

.screenshot-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-heavy);
}

.screenshot-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

/* 游戏资讯 */
.news {
    padding: 80px 0;
    background: var(--background-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

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

.news-date {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.news-content p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: var(--secondary-color);
}

/* 下载区域 */
.download {
    padding: 80px 0;
    background: var(--gradient-dark);
    color: var(--text-light);
}

.download .section-title {
    color: var(--text-light);
}

.download-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
}

.download-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.download-text p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    text-decoration: none;
    color: var(--text-light);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(10px);
}

.download-btn i {
    font-size: 2rem;
}

.download-btn div span {
    display: block;
    font-size: 1.1rem;
    font-weight: bold;
}

.download-btn div small {
    display: block;
    opacity: 0.8;
}

.download-qr {
    text-align: center;
}

.download-qr img {
    width: 200px;
    height: 200px;
    border-radius: 15px;
    box-shadow: var(--shadow-medium);
}

.download-qr p {
    margin-top: 15px;
    font-size: 1.1rem;
}

/* 页脚 */
.footer {
    background: var(--background-dark);
    color: var(--text-light);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 10px;
}

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

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    opacity: 0.7;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: var(--shadow-heavy);
    animation: modalAppear 0.3s ease;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.invite-modal {
    max-width: 600px;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
    transition: all 0.3s ease;
}

.close:hover {
    color: var(--primary-color);
}

.modal h2 {
    margin-bottom: 20px;
    color: var(--text-dark);
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-dark);
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.full-width {
    width: 100%;
}

.quick-register {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.quick-register p {
    margin-bottom: 10px;
    color: #666;
}

/* 邀请模态框特定样式 */
.invite-content {
    display: grid;
    gap: 25px;
}

.invite-code-section h3,
.invite-link-section h3,
.invite-rewards h3,
.invite-stats h3 {
    margin-bottom: 15px;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.invite-code-display {
    display: flex;
    gap: 10px;
}

.invite-code-display input {
    flex: 1;
    background: #f8f9fa;
}

.reward-list {
    display: grid;
    gap: 10px;
}

.reward-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 8px;
}

.reward-item i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-box {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.stat-box .stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-box .stat-label {
    color: #666;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-title .title-main {
        font-size: 2.5rem;
    }
    
    .hero-title .title-sub {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download-buttons {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .invite-code-display {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title .title-main {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshot-gallery {
        grid-template-columns: 1fr;
    }
}