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

body {
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

/* About Page New Styles */
#about {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e6e6e6;
    min-height: 100vh;
    padding: 100px 0 80px 0;
}

.about-header {
    text-align: center;
    margin-bottom: 60px;
}

.page-title {
    font-size: 3rem;
    margin-bottom: 10px;
    color: #ffd700;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
    font-weight: bold;
}

.page-subtitle {
    font-size: 1.3rem;
    color: #a8a8a8;
    font-weight: 300;
}

.intro-section {
    background: white;
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 40px;
    border: 1px solid #ddd;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.intro-title {
    font-size: 2rem;
    margin-bottom: 25px;
    color: #ff6b6b;
    border-left: 4px solid #ff6b6b;
    padding-left: 20px;
    font-weight: 600;
}

.intro-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #333;
}

.intro-content p {
    margin-bottom: 20px;
}

.about-features {
    margin: 60px 0;
}

.about-features .feature-card {
    background: white;
    border-radius: 12px;
    padding: 30px 25px;
    transition: all 0.3s ease;
    border: 1px solid #ddd;
    text-align: center;
}

.about-features .feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: #ff6b6b;
}

.about-features .feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: block;
}

.about-features .feature-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #333;
    font-weight: 600;
}

.about-features .feature-desc {
    font-size: 1rem;
    color: #666;
    line-height: 1.6;
}

.button-group {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    text-align: center;
    min-width: 180px;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.btn-secondary {
    background: linear-gradient(45deg, #4ecdc4, #6ef0e6);
    box-shadow: 0 4px 15px rgba(78, 205, 196, 0.3);
}

.btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.5);
}

.btn-secondary:hover {
    box-shadow: 0 8px 25px rgba(78, 205, 196, 0.5);
}

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

/* Navigation Bar Styles */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

.bar {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
}

/* Page Content */
.section {
    display: none;
    min-height: 100vh;
    padding-top: 70px;
}

.section.active {
    display: block;
}

/* Carousel Styles */
.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.carousel {
    position: relative;
    height: 100%;
    width: 100%;
}

.carousel-inner {
    height: 100%;
    position: relative;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.carousel-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.carousel-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.carousel-item.active {
    opacity: 1;
}

.carousel-content {
    text-align: center;
    color: white;
    z-index: 2;
}

.carousel-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.carousel-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.cta-button {
    background: #ff6b6b;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.cta-button:hover {
    background: #ff5252;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: white;
    font-size: 2rem;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    z-index: 3;
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(255, 255, 255, 0.5);
}

.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    transform: scale(1.2);
}

/* Features Section Styles */
.features {
    padding: 80px 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 40px 20px;
    border-radius: 15px;
    background: #f8f9fa;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Games Section Styles */
#products {
    background: #f8f9fa;
    padding: 80px 0;
}

#products h1 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    overflow: hidden;
    position: relative;
}

.product-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-card:hover .product-cover {
    transform: scale(1.05);
}

.image-placeholder {
    text-align: center;
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: #333;
}

.product-info p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.5;
}

.product-tags {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tag {
    background: #e9ecef;
    color: #495057;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.product-button {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.product-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* About Page Styles */
#about {
    background: white;
    padding: 80px 0;
}

#about h1 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

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

.about-text h2 {
    font-size: 2rem;
    margin: 30px 0 15px 0;
    color: #333;
}

.about-text p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
}

.privacy-policy {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    margin-top: 20px;
}

.privacy-policy h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #333;
}

.privacy-policy h4 {
    font-size: 1.3rem;
    margin: 25px 0 15px 0;
    color: #495057;
}

.privacy-policy ul {
    margin-left: 20px;
    color: #666;
}

.privacy-policy li {
    margin-bottom: 8px;
}

/* Privacy Policy Button Styles */
.privacy-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 15px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.privacy-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: white;
    margin: 0;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.close-modal {
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: transform 0.3s ease;
}

.close-modal:hover {
    transform: scale(1.2);
}

.modal-body {
    padding: 30px;
    color: #333;
    line-height: 1.7;
}

.modal-body h4 {
    color: #667eea;
    margin: 25px 0 15px 0;
    font-size: 1.3rem;
    font-weight: 600;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 8px;
}

.modal-body h5 {
    color: #495057;
    margin: 20px 0 10px 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-body p {
    margin-bottom: 15px;
    color: #555;
}

.modal-body ul {
    margin-left: 25px;
    color: #666;
    margin-bottom: 20px;
}

.modal-body li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.modal-body strong {
    color: #333;
    font-weight: 600;
}

.modal-body a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.modal-body a:hover {
    color: #5a6fd8;
    text-decoration: underline;
}

.modal-footer {
    padding: 20px;
    text-align: center;
    border-top: 1px solid #eee;
    background: #f8f9fa;
    border-radius: 0 0 15px 15px;
}

.modal-close-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.modal-close-btn:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* Modal Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0;
    }

    to {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    z-index: 999;
    transition: all 0.3s ease;
}

.sidebar-toggle {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 10px;
    cursor: pointer;
    border-radius: 5px 0 0 5px;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.sidebar-toggle:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateX(-5px);
}

.toggle-icon {
    font-size: 1.5rem;
    font-weight: bold;
    display: block;
    transform: rotate(90deg);
}

.sidebar-content {
    background: white;
    border-radius: 10px 0 0 10px;
    box-shadow: -2px 0 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-height: 300px;
    opacity: 1;
    transition: all 0.3s ease;
    margin-right: 0;
}

.sidebar-btn {
    display: block;
    width: 100%;
    background: transparent;
    border: none;
    padding: 15px 20px;
    text-align: left;
    cursor: pointer;
    font-size: 1rem;
    color: #333;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
}

.sidebar-btn:last-child {
    border-bottom: none;
}

.sidebar-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateX(-5px);
}

/* Sidebar Responsive */
@media (max-width: 768px) {
    .sidebar {
        top: auto;
        bottom: 20px;
        right: 20px;
        transform: none;
    }

    .sidebar-toggle {
        border-radius: 50%;
        width: 50px;
        height: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0;
    }

    .sidebar-content {
        position: absolute;
        bottom: 60px;
        right: 0;
        border-radius: 10px 10px 0 10px;
        min-width: 150px;
    }

    .sidebar:hover .sidebar-content {
        margin-right: 0;
    }
}

/* Footer Styles */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 30px 0;
}

/* Footer Privacy Policy Link Styles */
.footer .privacy-link {
    color: #999;
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    margin-top: 10px;
    display: inline-block;
    padding: 2px 0;
    border-bottom: 1px solid transparent;
    opacity: 0.8;
}

.footer .privacy-link:hover {
    color: #ccc;
    border-bottom: 1px solid #ccc;
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        padding: 20px;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .carousel-content h1 {
        font-size: 2.5rem;
    }

    .carousel-content p {
        font-size: 1.1rem;
    }

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

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .carousel-content h1 {
        font-size: 2rem;
    }

    .carousel-content p {
        font-size: 1rem;
    }

    .cta-button {
        padding: 12px 25px;
        font-size: 1rem;
    }
}