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

:root {
    --primary: #2c3e50;
    --accent: #3498db;
    --light: #f8f9fa;
    --dark: #1a1a2e;
    --text: #333;
    --text-light: #666;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--accent);
}

/* Hero 区域 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
    position: relative;
    overflow: hidden;
    padding: 0 2rem;
}

.hero-decorative {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.deco-line {
    position: absolute;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 2px;
}

.deco-line-1 {
    width: 300px;
    height: 2px;
    top: 20%;
    left: -150px;
    transform: rotate(-30deg);
}

.deco-line-2 {
    width: 200px;
    height: 2px;
    top: 60%;
    right: -100px;
    transform: rotate(20deg);
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* 通用 Section */
.section {
    padding: 5rem 2rem;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent);
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* 关于我们 */
.about {
    background: var(--light);
}

.about-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 游戏展示 */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.game-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    cursor: pointer;
}

.game-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.game-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.game-image {
    height: 200px;
    width: 100%;
    position: relative;
    background-size: 100% 100%;
    background-repeat: no-repeat;
}

.game-info {
    padding: 1.5rem;
}

.game-info h3 {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.game-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(52, 152, 219, 0.1);
    color: var(--accent);
    font-size: 0.85rem;
    border-radius: 20px;
    margin-bottom: 0.5rem;
}

.game-info p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Asset Store */
.assets-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.asset-item {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    background: var(--light);
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer;
}

.asset-item:hover {
    background: #e8f4f8;
    transform: translateX(8px);
}

.asset-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.asset-icon-1 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.asset-icon-2 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.asset-icon-3 {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.asset-icon-4 {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.asset-info {
    flex: 1;
}

.asset-info h3 {
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.asset-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 联系我们 */
.contact {
    background: var(--dark);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--white);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-item h4 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.6);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.3);
}

.contact-form input {
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-form input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.contact-form textarea {
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.1);
    resize: none;
    min-height: 150px;
}

.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.contact-form button {
    width: 100%;
}

/* 页脚 */
.footer {
    background: var(--primary);
    padding: 2rem 2rem 3rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.footer-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

/* 语言切换按钮 */
.lang-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.5rem;
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.lang-btn {
    padding: 0.5rem 1.5rem;
    border: none;
    background: transparent;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    border-radius: 20px;
    transition: var(--transition);
}

.lang-btn:hover {
    background: rgba(52, 152, 219, 0.1);
    color: var(--accent);
}

.lang-btn.active {
    background: var(--accent);
    color: var(--white);
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-stats {
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}