/* ===== CSS Reset & Variables ===== */
:root {
    --primary: #6C63FF;
    --primary-dark: #5A52D5;
    --secondary: #FF6B6B;
    --accent: #4ECDC4;
    --dark: #2D3436;
    --gray: #636E72;
    --light-gray: #B2BEC3;
    --bg-light: #F8F9FA;
    --white: #FFFFFF;
    --gradient-1: linear-gradient(135deg, #6C63FF 0%, #4ECDC4 100%);
    --gradient-2: linear-gradient(135deg, #FF6B6B 0%, #FFA502 100%);
    --shadow: 0 10px 40px rgba(108, 99, 255, 0.15);
    --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.08);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--bg-light);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== Utility Classes ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--dark);
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 60px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(108, 99, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(108, 99, 255, 0.45);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.text-gradient {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-list {
    display: flex;
    gap: 36px;
}

.nav-link {
    font-weight: 500;
    color: var(--gray);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-1);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-light);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
}

.lang-switcher:hover {
    background: var(--primary);
    color: var(--white);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(180deg, var(--white) 0%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(108, 99, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(78, 205, 196, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.hero-image {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    display: block;
}

.hero-card {
    position: absolute;
    background: var(--white);
    padding: 20px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
    animation: float 3s ease-in-out infinite;
}

.hero-card-1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.hero-card-2 {
    bottom: 20%;
    right: -5%;
    animation-delay: 1.5s;
}

.hero-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.hero-card-icon.purple {
    background: rgba(108, 99, 255, 0.15);
    color: var(--primary);
}

.hero-card-icon.green {
    background: rgba(78, 205, 196, 0.15);
    color: var(--accent);
}

.hero-card-text span {
    display: block;
    font-size: 0.85rem;
    color: var(--gray);
}

.hero-card-text strong {
    font-size: 1.2rem;
    color: var(--dark);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ===== Features Section ===== */
.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-light);
    padding: 40px 32px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.feature-icon.icon-1 {
    background: rgba(108, 99, 255, 0.15);
    color: var(--primary);
}

.feature-icon.icon-2 {
    background: rgba(78, 205, 196, 0.15);
    color: var(--accent);
}

.feature-icon.icon-3 {
    background: rgba(255, 107, 107, 0.15);
    color: var(--secondary);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* ===== Games Section ===== */
.games {
    background: var(--bg-light);
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.game-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.game-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--white);
}

.game-image.img-2 {
    background: var(--gradient-2);
}

.game-image.img-3 {
    background: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
}

.game-content {
    padding: 24px;
}

.game-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.game-content p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.game-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.game-tag {
    padding: 6px 14px;
    background: var(--bg-light);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--gray);
}

/* ===== Stats Section ===== */
.stats {
    background: var(--gradient-1);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
    color: var(--white);
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-item p {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===== About Section ===== */
.about {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-img-main {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: var(--gradient-1);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: var(--white);
}

.about-content h2 {
    font-size: 2.2rem;
    margin-bottom: 24px;
    color: var(--dark);
}

.about-content p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-list {
    margin: 32px 0;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--dark);
}

.about-list li::before {
    content: '✓';
    width: 24px;
    height: 24px;
    background: rgba(108, 99, 255, 0.15);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

/* ===== Team Section ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.team-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
}

.team-card h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
    color: var(--dark);
}

.team-card span {
    color: var(--primary);
    font-size: 0.9rem;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 24px;
    color: var(--dark);
}

.contact-info > p {
    color: var(--gray);
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(108, 99, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--dark);
}

.contact-text p {
    color: var(--gray);
    font-size: 0.95rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--white);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ===== Map Section ===== */
.map-section {
    padding: 0;
}

#map {
    width: 100%;
    height: 450px;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--light-gray);
    margin: 20px 0 24px;
    font-size: 0.95rem;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 24px;
    position: relative;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: var(--light-gray);
    font-size: 0.95rem;
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: var(--light-gray);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--light-gray);
    font-size: 0.9rem;
}

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

/* ===== Page Header ===== */
.page-header {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.1) 0%, rgba(78, 205, 196, 0.1) 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 16px;
    color: var(--dark);
}

.page-header p {
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
    font-size: 0.95rem;
}

.breadcrumb a {
    color: var(--primary);
}

.breadcrumb span {
    color: var(--gray);
}

/* ===== Legal Pages ===== */
.legal-content {
    background: var(--white);
    padding: 80px 0;
}

.legal-content .container {
    max-width: 900px;
}

.legal-content h2 {
    font-size: 1.6rem;
    margin: 40px 0 16px;
    color: var(--dark);
}

.legal-content h3 {
    font-size: 1.3rem;
    margin: 32px 0 12px;
    color: var(--dark);
}

.legal-content p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

.legal-content ul {
    margin: 16px 0 16px 24px;
}

.legal-content ul li {
    color: var(--gray);
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.legal-content ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
}

.legal-content .update-date {
    background: var(--bg-light);
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    margin-bottom: 40px;
    color: var(--gray);
}

/* ===== Timeline ===== */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-1);
    border-radius: 2px;
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: -40px;
    top: 5px;
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 4px solid var(--primary);
    border-radius: 50%;
}

.timeline-item h4 {
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 8px;
}

.timeline-item span {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
}

.timeline-item p {
    color: var(--gray);
    margin-top: 8px;
}

/* ===== Values Grid ===== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.value-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 20px;
    transition: var(--transition);
}

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

.value-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.value-icon.v1 { background: rgba(108, 99, 255, 0.15); color: var(--primary); }
.value-icon.v2 { background: rgba(78, 205, 196, 0.15); color: var(--accent); }
.value-icon.v3 { background: rgba(255, 107, 107, 0.15); color: var(--secondary); }
.value-icon.v4 { background: rgba(255, 165, 2, 0.15); color: #FFA502; }

.value-content h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.value-content p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content p {
        margin: 0 auto 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 400px;
        margin: 40px auto 0;
    }
    
    .hero-card {
        display: none;
    }
    
    .features-grid,
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-list {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .features-grid,
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .stat-item h3 {
        font-size: 2.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }
}

/* ===== Mobile Navigation ===== */
.mobile-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    box-shadow: var(--shadow);
    display: none;
    z-index: 999;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-nav a {
    display: block;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--dark);
}

.mobile-nav a:hover,
.mobile-nav a.active {
    background: var(--bg-light);
    color: var(--primary);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--light-gray);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray);
}