/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

/* 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: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.company-logo {
    height: 40px;
    width: 40px;
    max-height: 40px;
    max-width: 40px;
    object-fit: contain;
    flex-shrink: 0;
}

.company-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    white-space: nowrap;
}

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

.lang-toggle {
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s ease;
    white-space: nowrap;
}

.lang-toggle:hover {
    background: var(--secondary-color);
}

/* 主横幅 */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin-top: 80px;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    padding: 60px 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 通用section样式 */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 20px auto 0;
    border-radius: 2px;
}

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

.about-content {
    display: grid;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* 产品介绍 */
.product {
    background: var(--bg-white);
}

.product-highlight {
    max-width: 1000px;
    margin: 0 auto;
}

.product-header {
    text-align: center;
    margin-bottom: 40px;
}

.product-name {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.product-tagline {
    font-size: 1.3rem;
    color: var(--text-light);
    font-style: italic;
}

.product-intro {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 50px;
    border-left: 4px solid var(--primary-color);
}

.product-intro p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-dark);
}

/* 功能特性 */
.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-card h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 游戏截图轮播 */
.product-gallery {
    margin-bottom: 60px;
}

.product-gallery h4,
.product-video h4 {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.gallery-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 60px;
}

.gallery-slider {
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.gallery-track {
    display: flex;
    transition: transform 0.4s ease;
}

.gallery-image {
    width: 100%;
    flex-shrink: 0;
    display: block;
    border-radius: 12px;
    object-fit: contain;
}

.gallery-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: background 0.3s ease, transform 0.3s ease;
    color: var(--primary-color);
}

.gallery-btn:hover {
    background: white;
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: 0;
}

.next-btn {
    right: 0;
}

/* 视频 */
.product-video {
    margin-top: 60px;
}

.video-container {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.video-container video {
    width: 100%;
    display: block;
}

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

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-3px);
}

.contact-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.contact-details p,
.contact-details a {
    font-size: 1.1rem;
    color: var(--text-light);
    text-decoration: none;
}

.contact-details a:hover {
    color: var(--primary-color);
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 15px;
    align-items: center;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.separator {
    color: rgba(255, 255, 255, 0.5);
}

.copyright {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-content {
        flex-direction: column;
        gap: 15px;
    }

    .nav-links {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .company-name {
        text-align: center;
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .product-name {
        font-size: 2rem;
    }

    .product-features {
        grid-template-columns: 1fr;
    }

    .gallery-container {
        padding: 0 50px;
    }

    .gallery-btn {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    section {
        padding: 50px 0;
    }
}