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

:root {
    --primary-color: #ff6b35;
    --primary-light: #ff8c5a;
    --primary-dark: #e55a2b;
    --secondary-color: #00d9ff;
    --accent-color: #7c3aed;
    --background-color: #0a0a0f;
    --surface-color: #12121a;
    --surface-light: #1a1a25;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border-color: #2a2a35;
    --success: #22c55e;
    --warning: #f59e0b;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s ease;
    --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
    --gradient-card: linear-gradient(180deg, #1a1a25 0%, #12121a 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #ff8c5a 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==================== 导航栏 ==================== */
.navbar {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.cart-btn, .search-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    font-size: 1.1rem;
    cursor: pointer;
    position: relative;
    padding: 0.6rem;
    border-radius: 8px;
    transition: var(--transition);
    color: var(--text-primary);
}

.cart-btn:hover, .search-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--gradient-accent);
    color: var(--white);
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 50%;
    font-weight: 700;
}

.search-bar {
    padding: 1rem 2rem;
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
}

.search-bar input {
    width: 100%;
    padding: 0.875rem 1.25rem;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

/* ==================== Hero Section ==================== */
.hero {
    background: var(--gradient-hero);
    padding: 6rem 2rem;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero h1 span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btn {
    background: var(--gradient-accent);
    color: var(--white);
    border: none;
    padding: 1rem 3rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3.5rem;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.875rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.badge:hover {
    border-color: var(--primary-color);
    background: rgba(255, 107, 53, 0.1);
}

/* ==================== Trust Stats ==================== */
.trust-stats {
    display: flex;
    justify-content: center;
    gap: 5rem;
    padding: 4rem 2rem;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

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

.stat-number {
    font-size: 2.75rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ==================== Section Header ==================== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 0 2rem;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.section-header p {
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ==================== Featured Carousel ==================== */
.featured-section {
    padding: 4rem 0;
    max-width: 1400px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    padding: 0 3.5rem;
}

.carousel-track {
    display: flex;
    gap: 1.5rem;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.featured-card {
    flex: 0 0 340px;
    background: var(--gradient-card);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.featured-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(255, 107, 53, 0.15);
}

.featured-image {
    width: 100%;
    height: 260px;
    overflow: hidden;
    position: relative;
    background: var(--surface-light);
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.featured-card:hover .featured-image img {
    transform: scale(1.05);
}

.featured-discount {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 0.375rem 0.875rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
}

.featured-info {
    padding: 1.5rem;
}

.featured-brand {
    color: var(--primary-color);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.featured-info h3 {
    font-size: 1rem;
    margin: 0.5rem 0;
    line-height: 1.4;
    color: var(--text-primary);
}

.featured-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.875rem;
    font-size: 0.8rem;
}

.featured-rating .stars {
    color: #fbbf24;
}

.featured-price {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin-bottom: 1rem;
}

.featured-price .current {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.featured-price .original {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.featured-btn {
    width: 100%;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.875rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.8rem;
}

.featured-btn:hover {
    background: var(--gradient-accent);
    border-color: transparent;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

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

.prev-btn { left: 0.5rem; }
.next-btn { right: 0.5rem; }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary-color);
    width: 24px;
    border-radius: 5px;
}

/* ==================== Categories ==================== */
.categories-section {
    padding: 3rem 2rem;
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.categories-section .section-header {
    max-width: 1400px;
    margin: 0 auto 2rem;
}

.categories-grid {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    max-width: 1400px;
    margin: 0 auto;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.625rem;
    padding: 1.5rem 2rem;
    background: var(--background-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    min-width: 130px;
}

.category-card:hover, .category-card.active {
    border-color: var(--primary-color);
    background: rgba(255, 107, 53, 0.1);
}

.category-icon {
    font-size: 2rem;
}

.category-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.8rem;
    text-align: center;
}

/* ==================== Products Grid ==================== */
.products-section {
    padding: 4rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.filter-bar {
    display: flex;
    gap: 1rem;
}

.filter-bar select {
    padding: 0.625rem 1.25rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
    appearance: none;
    padding-right: 2rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
}

.filter-bar select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: var(--gradient-card);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.product-image-container {
    position: relative;
    width: 100%;
    height: 320px;
    overflow: hidden;
    background: var(--surface-light);
}

.product-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image-container img {
    transform: scale(1.05);
}

.discount-badge {
    position: absolute;
    top: 0.875rem;
    right: 0.875rem;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 0.375rem 0.75rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
}

.product-info {
    padding: 1.25rem;
}

.product-brand {
    color: var(--primary-color);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.375rem;
}

.product-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.625rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.625rem;
}

.stars {
    color: #fbbf24;
    font-size: 0.75rem;
}

.rating-text {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 1rem;
}

.current-price {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.original-price {
    color: var(--text-muted);
    text-decoration: line-through;
    font-size: 0.8rem;
}

.product-actions {
    display: flex;
    gap: 0.625rem;
}

.add-to-cart-btn, .quick-view-btn {
    flex: 1;
    padding: 0.625rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.add-to-cart-btn {
    background: var(--gradient-accent);
    color: var(--white);
    border: none;
}

.add-to-cart-btn:hover {
    opacity: 0.9;
}

.quick-view-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.quick-view-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* ==================== Trust Section ==================== */
.trust-section {
    padding: 5rem 2rem;
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.trust-item {
    text-align: center;
    padding: 1.5rem;
}

.trust-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 1rem;
}

.trust-item h3 {
    font-size: 1rem;
    margin-bottom: 0.625rem;
    color: var(--text-primary);
}

.trust-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==================== Footer ==================== */
.footer {
    background: var(--background-color);
    color: var(--white);
    padding: 5rem 2rem 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section h4 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-section p {
    color: var(--text-secondary);
    margin-bottom: 0.625rem;
    font-size: 0.9rem;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-payments {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-payments span {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.payment-icons {
    display: flex;
    gap: 0.5rem;
}

.payment-icon-small {
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid var(--primary-color);
    padding: 0.4rem 0.875rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Payment Methods in Footer Section */
.payment-methods-footer {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.payment-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.payment-badge:hover {
    background: rgba(255, 107, 53, 0.1);
    border-color: var(--primary-color);
}

.payment-badge .payment-icon {
    font-size: 1.25rem;
}

.payment-badge .payment-name {
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--text-primary);
}

.payment-badge.jazzcash {
    border-color: #e31837;
}

.payment-badge.jazzcash:hover {
    background: rgba(227, 24, 55, 0.1);
}

.payment-badge.easypaisa {
    border-color: #00a651;
}

.payment-badge.easypaisa:hover {
    background: rgba(0, 166, 81, 0.1);
}

.payment-note {
    font-size: 0.75rem !important;
    color: var(--text-muted) !important;
}

/* ==================== Notification ==================== */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-xl);
    z-index: 10000;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    font-size: 0.875rem;
    font-weight: 500;
}

.notification.show {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .trust-stats {
        gap: 3rem;
        flex-wrap: wrap;
    }
    
    .stat-number {
        font-size: 2.25rem;
    }
    
    .hero h1 {
        font-size: 2.75rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 4rem 1.5rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-badges {
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    
    .trust-stats {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .featured-card {
        flex: 0 0 280px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .categories-grid {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 1rem;
        -webkit-overflow-scrolling: touch;
        gap: 0.75rem;
    }
    
    .category-card {
        flex-shrink: 0;
        min-width: 110px;
        padding: 1rem 1.25rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .product-image-container {
        height: 260px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0.875rem 1rem;
    }
    
    .hero {
        padding: 3rem 1rem;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .featured-section,
    .products-section,
    .categories-section,
    .trust-section {
        padding: 3rem 1rem;
    }
    
    .carousel-container {
        padding: 0 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-image-container {
        height: 350px;
    }
    
    .product-actions {
        flex-direction: column;
    }
}