:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --light: #f1f5f9;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

body {
    font-family: 'Noto Sans TC', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.header {
    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;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
}

.logo i {
    font-size: 28px;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

.cart-link {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    transition: all 0.3s ease;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.05;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    top: -200px;
    left: -200px;
    opacity: 0.1;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    bottom: -150px;
    right: -150px;
    opacity: 0.1;
    animation-delay: -5s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--accent), var(--primary));
    top: 50%;
    right: 10%;
    opacity: 0.1;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    font-family: 'Orbitron', sans-serif;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideUp 0.8s ease-out forwards;
    opacity: 0;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
    from {
        opacity: 0;
        transform: translateY(30px);
    }
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray);
    margin-bottom: 40px;
    animation: fadeIn 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.hero-buttons {
    display: flex;
    gap: 20px;
    animation: fadeIn 0.8s ease-out 0.6s forwards;
    opacity: 0;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-outline {
    border-color: var(--primary);
    color: var(--primary);
}

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

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

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

.btn-lg {
    padding: 18px 40px;
    font-size: 18px;
}

.hero-image {
    position: relative;
    height: 500px;
}

.floating-card {
    position: absolute;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.floating-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-1 {
    width: 350px;
    height: 250px;
    top: 0;
    left: 0;
    animation: floatCard 6s infinite ease-in-out;
}

.card-2 {
    width: 280px;
    height: 200px;
    top: 50px;
    right: 0;
    animation: floatCard 6s infinite ease-in-out;
    animation-delay: -2s;
}

.card-3 {
    width: 250px;
    height: 180px;
    bottom: 0;
    left: 50px;
    animation: floatCard 6s infinite ease-in-out;
    animation-delay: -4s;
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--gray);
    animation: bounce 2s infinite;
}

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

.features {
    padding: 80px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 40px 20px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--light);
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--gray);
    font-size: 14px;
}

.categories {
    padding: 100px 0;
    background: var(--light);
}

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

.section-header h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    font-family: 'Orbitron', sans-serif;
}

.section-header p {
    font-size: 18px;
    color: var(--gray);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.category-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.category-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover .category-overlay {
    opacity: 1;
}

.category-info {
    padding: 30px;
}

.category-info h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.category-info p {
    color: var(--gray);
}

.about-preview {
    padding: 100px 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-badge {
    position: absolute;
    top: 30px;
    right: 30px;
    background: var(--white);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.badge-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Orbitron', sans-serif;
}

.badge-text {
    display: block;
    font-size: 14px;
    color: var(--gray);
}

.about-text h2 {
    font-size: 42px;
    margin-bottom: 20px;
    font-family: 'Orbitron', sans-serif;
}

.about-text .lead {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 500;
}

.about-text p {
    color: var(--gray);
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 40px 0;
}

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

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Orbitron', sans-serif;
}

.stat-label {
    display: block;
    color: var(--gray);
    font-size: 14px;
}

.why-choose {
    padding: 100px 0;
    background: var(--dark);
    color: var(--white);
}

.why-choose .section-header h2,
.why-choose .section-header p {
    color: var(--white);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.why-card {
    padding: 40px;
    background: var(--dark-light);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.why-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.why-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    font-family: 'Orbitron', sans-serif;
}

.why-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.why-card p {
    color: var(--gray);
    line-height: 1.8;
}

.testimonials {
    padding: 100px 0;
    background: var(--light);
}

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

.testimonial-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.testimonial-rating {
    color: var(--warning);
    margin-bottom: 20px;
}

.testimonial-text {
    color: var(--gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.testimonial-author strong {
    display: block;
    color: var(--dark);
    margin-bottom: 5px;
}

.testimonial-author span {
    color: var(--gray);
    font-size: 14px;
}

.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-family: 'Orbitron', sans-serif;
}

.cta-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: var(--white);
}

.footer-section p {
    color: var(--gray);
    line-height: 1.8;
}

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

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

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

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

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--gray);
}

.contact-info i {
    color: var(--primary);
    margin-top: 3px;
}

.footer-company-info {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    margin-bottom: 40px;
}

.footer-company-info h4 {
    margin-bottom: 20px;
    color: var(--white);
}

.company-details {
    color: var(--gray);
    line-height: 1.8;
}

.company-details p {
    margin-bottom: 8px;
}

.company-details strong {
    color: var(--white);
    display: block;
    margin-top: 15px;
    margin-bottom: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom a {
    color: var(--gray);
    text-decoration: none;
}

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

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        display: none;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        flex-direction: column;
        padding: 40px;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .cta-content h2 {
        font-size: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
    }
}

.page-hero {
    padding: 100px 0 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    text-align: center;
}

.page-hero h1 {
    font-size: 48px;
    margin-bottom: 15px;
    font-family: 'Orbitron', sans-serif;
}

.page-hero p {
    font-size: 18px;
    opacity: 0.9;
}

.catalog-section {
    padding: 60px 0;
}

.catalog-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
}

.catalog-filters {
    background: var(--white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.catalog-filters h3 {
    margin-bottom: 25px;
    font-size: 20px;
}

.filter-group {
    margin-bottom: 30px;
}

.filter-group h4 {
    margin-bottom: 15px;
    font-size: 16px;
    color: var(--gray);
}

.filter-group label {
    display: block;
    margin-bottom: 10px;
    cursor: pointer;
    font-size: 14px;
}

.filter-group input[type="checkbox"] {
    margin-right: 8px;
}

.catalog-filters .btn {
    width: 100%;
    margin-bottom: 10px;
}

.catalog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.results-count {
    color: var(--gray);
}

#sortSelect {
    padding: 10px 15px;
    border: 1px solid var(--light);
    border-radius: 10px;
    background: var(--white);
    cursor: pointer;
}

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

.product-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.product-image {
    height: 250px;
    overflow: hidden;
    background: var(--light);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
    min-height: 50px;
}

.product-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 15px;
    font-family: 'Orbitron', sans-serif;
}

.product-info .btn {
    width: 100%;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background: var(--white);
    border-radius: 20px;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 32px;
    cursor: pointer;
    color: var(--gray);
    z-index: 1;
}

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

.modal-body {
    padding: 40px;
}

.modal-product {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.modal-product-image img {
    width: 100%;
    border-radius: 15px;
}

.modal-product-details h2 {
    font-size: 28px;
    margin-bottom: 15px;
}

.modal-price {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    font-family: 'Orbitron', sans-serif;
}

.modal-description {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 30px;
}

.modal-specs {
    margin-bottom: 30px;
}

.modal-specs h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.modal-specs ul {
    list-style: none;
}

.modal-specs li {
    padding: 10px 0;
    border-bottom: 1px solid var(--light);
    color: var(--gray);
}

.modal-specs li:before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    margin-right: 10px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 60px 0;
}

.blog-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    cursor: pointer;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.blog-image {
    height: 220px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.blog-content {
    padding: 25px;
}

.blog-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--gray);
}

.blog-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.blog-excerpt {
    color: var(--gray);
    line-height: 1.6;
}

.cart-empty {
    text-align: center;
    padding: 100px 20px;
}

.cart-empty i {
    font-size: 80px;
    color: var(--gray);
    margin-bottom: 20px;
}

.cart-empty h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.cart-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 40px;
    padding: 60px 0;
}

.cart-items {
    background: var(--white);
    border-radius: 20px;
    padding: 30px;
}

.cart-item {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--light);
}

.cart-item-image {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    overflow: hidden;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-details h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.cart-item-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Orbitron', sans-serif;
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.qty-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--light);
    background: var(--white);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.qty-value {
    min-width: 40px;
    text-align: center;
    font-weight: 600;
}

.cart-item-actions {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-end;
}

.remove-btn {
    color: var(--danger);
    cursor: pointer;
    font-size: 20px;
}

.cart-summary {
    background: var(--white);
    border-radius: 20px;
    padding: 30px;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.cart-summary h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid var(--light);
}

.summary-row.total {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    border-bottom: none;
    padding-top: 20px;
}

.cart-summary .btn {
    width: 100%;
    margin-top: 20px;
}

.checkout-form {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    margin: 60px 0;
}

.form-section {
    margin-bottom: 40px;
}

.form-section h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--light);
    border-radius: 10px;
    font-family: inherit;
    font-size: 14px;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 15px;
}

.payment-method {
    border: 2px solid var(--light);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.payment-method:hover,
.payment-method.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.payment-method i {
    font-size: 32px;
    margin-bottom: 10px;
    color: var(--primary);
}

.about-page {
    padding: 60px 0;
}

.about-hero {
    text-align: center;
    margin-bottom: 80px;
}

.about-hero h2 {
    font-size: 42px;
    margin-bottom: 20px;
    font-family: 'Orbitron', sans-serif;
}

.about-hero p {
    font-size: 18px;
    color: var(--gray);
    max-width: 800px;
    margin: 0 auto;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--white);
}

.value-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.value-card p {
    color: var(--gray);
    line-height: 1.8;
}

.contact-page {
    padding: 60px 0;
}

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

.contact-info-card {
    background: var(--white);
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.contact-info-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-info-card i {
    color: var(--primary);
}

.contact-info-card p {
    color: var(--gray);
    line-height: 1.8;
}

.policy-page {
    padding: 60px 0;
}

.policy-content {
    background: var(--white);
    padding: 60px;
    border-radius: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.policy-content h2 {
    font-size: 32px;
    margin-bottom: 30px;
    font-family: 'Orbitron', sans-serif;
}

.policy-content h3 {
    font-size: 24px;
    margin: 30px 0 15px;
}

.policy-content p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.policy-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.policy-content li {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 10px;
}

@media (max-width: 1024px) {
    .catalog-layout {
        grid-template-columns: 1fr;
    }
    
    .catalog-filters {
        position: static;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cart-layout {
        grid-template-columns: 1fr;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
    }
    
    .modal-product {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .payment-methods {
        grid-template-columns: 1fr;
    }
    
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .policy-content {
        padding: 30px 20px;
    }
}