/* ===========================================
   Category Page Styles - 分类页面样式
   现代化、响应式的产品分类页面样式
   =========================================== */

/* CSS Variables - 样式变量 */
:root {
    /* Colors */
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #8b5cf6;
    --accent-color: #10b981;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --background-primary: #ffffff;
    --background-secondary: #f8fafc;
    --background-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
}

/* ===========================================
   Base Styles - 基础样式
   =========================================== */

.category-container {
    width: 100%;
    /* min-height: 100vh; */
    background: var(--background-primary);
}

/* ===========================================
   Hero Section - 英雄区域
   =========================================== */

.category-hero-section {
    position: relative;
    height: 60vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4));
    z-index: 2;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 var(--spacing-md);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    color: #ffffff !important;
    text-shadow: 0 3px 6px rgba(0, 0, 0, 0.7);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #f8f9fa !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
    color: #ffffff !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.7);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #e9ecef !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Section Button Styles */
.hero-actions .btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border: none;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
    transition: all 0.3s ease;
}

.hero-actions .btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.hero-actions .btn-outline {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: #ffffff;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.hero-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffffff;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

/* ===========================================
   Subcategories Section - 子分类区域
   =========================================== */

.subcategories-showcase {
    padding: var(--spacing-2xl) 0;
    background: var(--background-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.subcategories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.subcategory-card {
    background: var(--background-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
}

.subcategory-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(59, 130, 246, 0.8) 0%,
        rgba(139, 92, 246, 0.8) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.card-overlay i {
    font-size: 2rem;
    color: white;
}

.card-content {
    padding: var(--spacing-lg);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.card-count {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===========================================
   Products Section - 产品区域
   =========================================== */

.products-showcase {
    padding: var(--spacing-2xl) 0;
    background: var(--background-primary);
}

.category-main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.header-content {
    flex: 1;
    min-width: 300px;
}

.products-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.products-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.products-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.view-controls {
    display: flex;
    background: var(--background-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    border: 1px solid var(--border-color);
}

.view-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.view-btn.active,
.view-btn:hover {
    background: var(--background-primary);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.sort-control {
    position: relative;
}

.sort-select {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--background-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    min-width: 160px;
    transition: all var(--transition-fast);
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ===========================================
   Products Grid - 产品网格
   =========================================== */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.product-card {
    background: var(--background-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.product-image-container {
    position: relative;
    height: 240px;
    overflow: hidden;
    background: var(--background-tertiary);
}

.product-link {
    display: block;
    width: 100%;
    height: 100%;
}

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

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

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 2;
}

.badge-new {
    background: var(--accent-color);
    color: white;
}

.badge-featured {
    background: var(--primary-color);
    color: white;
}

/* Product Overlay */
.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(59, 130, 246, 0.9) 0%,
        rgba(139, 92, 246, 0.9) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(4px);
}

.product-image-container:hover .product-overlay {
    opacity: 1;
    visibility: visible;
}

/* Overlay Actions */
.overlay-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    color: var(--primary-color);
    font-size: 1.125rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}



/* Product Content */
.product-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-header {
    margin-bottom: var(--spacing-sm);
}

.product-name {
    margin-bottom: var(--spacing-sm);
}

.product-name a {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.3;
    transition: color var(--transition-fast);
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product-name a:hover {
    color: var(--primary-color);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.stars {
    display: flex;
    gap: 2px;
}

.rating-stars {
    display: flex;
    gap: 2px;
}

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

.rating-text {
    color: var(--text-secondary);
    font-size: 0.6875rem;
    font-weight: 500;
}

.product-description {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Product Specs */
.product-card .product-specs {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-bottom: 4px;
    padding: 6px 8px;
    background: linear-gradient(
        135deg,
        rgba(248, 250, 252, 0.6) 0%,
        rgba(241, 245, 249, 0.6) 100%
    );
    border-radius: var(--radius-sm);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

/* Product Actions */
.product-actions {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    background: linear-gradient(
        135deg,
        rgba(248, 250, 252, 0.9) 0%,
        rgba(241, 245, 249, 0.9) 100%
    );
    margin-top: auto;
}

.product-action-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--background-primary);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    min-height: 36px;
    box-shadow: var(--shadow-sm);
}

.product-action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left var(--transition-normal);
}

.product-action-btn:hover::before {
    left: 100%;
}

.product-action-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.product-action-btn.btn-secondary {
    background: linear-gradient(
        135deg,
        var(--background-secondary) 0%,
        rgba(248, 250, 252, 0.9) 100%
    );
    border-color: var(--secondary-color);
}

.product-action-btn.btn-secondary:hover {
    background: linear-gradient(
        135deg,
        var(--secondary-color) 0%,
        var(--accent-color) 100%
    );
    border-color: var(--secondary-color);
    color: white;
}

.product-action-btn i {
    font-size: 0.875rem;
    transition: transform var(--transition-fast);
}

.product-action-btn:hover i {
    transform: scale(1.1);
}

.product-action-btn span {
    font-weight: 600;
}

.product-card .spec-item {
    display: flex;
    font-size: 0.65rem;
    align-items: flex-start;
    gap: 6px;
    color: var(--text-secondary);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    width: 100%;
    min-height: 18px;
}

.product-card .spec-item i {
    color: var(--primary-color);
    font-size: 0.7rem;
    margin-right: 0;
    flex-shrink: 0;
    margin-top: 1px;
    width: 12px;
    text-align: center;
}

.product-card .spec-item span {
    word-wrap: break-word;
    word-break: break-word;
    line-height: 1.2;
    flex: 1;
    font-size: 0.65rem;
}

/* 当spec-item超过4个时，使用网格布局 */
.product-card .product-specs:has(.spec-item:nth-child(2)) {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    padding: 8px;
}

.product-card .product-specs:has(.spec-item:nth-child(5)) .spec-item {
    font-size: 0.6rem;
    padding: 1px 3px;
    min-height: 16px;
}

.product-card .product-specs:has(.spec-item:nth-child(5)) .spec-item i {
    font-size: 0.65rem;
    width: 10px;
}

.product-card .product-specs:has(.spec-item:nth-child(5)) .spec-item span {
    font-size: 0.6rem;
    line-height: 1.1;
}

/* ===========================================
   Empty State - 空状态
   =========================================== */

.no-products-state {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.empty-state {
    text-align: center;
    max-width: 500px;
    padding: var(--spacing-2xl);
}

.empty-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.empty-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.empty-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===========================================
   CTA Section - 行动号召区域
   =========================================== */

.category-cta {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(
        135deg,
        var(--text-primary) 0%,
        #374151 100%
    );
    color: white;
}

.cta-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.cta-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.cta-text p {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
}

/* CTA Features */
.cta-features {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    min-width: 140px;
    justify-content: center;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.feature-item i {
    font-size: 1.2rem;
    color: var(--accent-color);
    transition: transform var(--transition-fast);
}

.feature-item:hover i {
    transform: scale(1.1);
}

.feature-item span {
    font-weight: 600;
    color: white;
    font-size: 0.9rem;
    white-space: nowrap;
}

.cta-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.cta-actions .btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-xl);
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    border: none;
    cursor: pointer;
    min-width: 160px;
    position: relative;
    overflow: hidden;
}

.cta-actions .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left var(--transition-normal);
}

.cta-actions .btn:hover::before {
    left: 100%;
}

.cta-actions .btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, #059669 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.cta-actions .btn-primary:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(16, 185, 129, 0.4);
    color: white;
    text-decoration: none;
}

.cta-actions .btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.cta-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
}

.cta-actions .btn i {
    font-size: 1.1rem;
    transition: transform var(--transition-fast);
}

.cta-actions .btn:hover i {
    transform: scale(1.1);
}

/* ===========================================
   Responsive Design - 响应式设计
   =========================================== */

/* Tablet */
@media (max-width: 1024px) {
    .category-hero-section {
        height: 65vh;
        min-height: 480px;
    }
    
    .hero-content {
        padding: 0 var(--spacing-lg);
        max-width: 700px;
    }
    
    .hero-title {
        font-size: clamp(2rem, 6vw, 3rem);
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-xl);
    }
    
    .hero-stats {
        gap: var(--spacing-lg);
        margin-bottom: var(--spacing-xl);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .subcategories-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-lg);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .category-hero-section {
        height: 70vh;
        min-height: 500px;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-content {
        padding: 0 var(--spacing-lg);
        max-width: 100%;
    }
    
    .hero-badge {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .hero-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: var(--spacing-md);
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.5;
        margin-bottom: var(--spacing-xl);
        padding: 0 var(--spacing-sm);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }
    
    .stat-item {
        padding: 0 var(--spacing-md);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-md);
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
        padding: var(--spacing-md) var(--spacing-lg);
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .spec-item {
        font-size: 0.75rem;
    }
    
    .spec-item span {
        font-size: 0.75rem;
    }
    
    .products-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .products-controls {
        width: 100%;
        justify-content: space-between;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .subcategories-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-features {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .feature-item {
        min-width: 200px;
        width: 100%;
        max-width: 280px;
    }
    
    .cta-actions {
        justify-content: center;
    }
    
    .product-specs {
        grid-template-columns: 1fr;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .category-hero-section {
        height: 60vh;
        min-height: 450px;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-content {
        padding: 0 var(--spacing-md);
    }
    
    .hero-badge {
        font-size: 0.6875rem;
        padding: 6px var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 10vw, 2rem);
        margin-bottom: var(--spacing-sm);
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 0.875rem;
        line-height: 1.4;
        margin-bottom: var(--spacing-lg);
        padding: 0;
    }
    
    .hero-stats {
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-lg);
    }
    
    .stat-item {
        padding: 0 var(--spacing-sm);
    }
    
    .stat-number {
        font-size: 1.25rem;
    }
    
    .stat-label {
        font-size: 0.6875rem;
    }
    
    .hero-actions {
        gap: var(--spacing-sm);
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 240px;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .product-card .product-specs {
        padding: 4px 6px;
        margin-bottom: 6px;
        gap: 2px;
    }
    
    .product-card .spec-item {
        font-size: 0.6rem;
        gap: 4px;
        padding: 1px 2px;
        min-height: 16px;
    }
    
    .product-card .spec-item i {
        font-size: 0.65rem;
        width: 10px;
    }
    
    .product-card .spec-item span {
        font-size: 0.6rem;
        line-height: 1.1;
    }
    
    /* 移动端强制使用网格布局当有超过3个条目时 */
    .product-card .product-specs:has(.spec-item:nth-child(4)) {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1px;
        padding: 6px;
    }
    
    .product-card .product-specs:has(.spec-item:nth-child(4)) .spec-item {
        font-size: 0.55rem;
        padding: 1px;
        min-height: 14px;
    }
    
    .product-card .product-specs:has(.spec-item:nth-child(4)) .spec-item i {
        font-size: 0.6rem;
        width: 8px;
    }
    
    .product-card .product-specs:has(.spec-item:nth-child(4)) .spec-item span {
        font-size: 0.55rem;
        line-height: 1;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .products-title {
        font-size: 2rem;
    }
    
    .product-image-container {
        height: 240px;
    }
    
    .product-content {
        padding: var(--spacing-md);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ===========================================
   Animation Classes - 动画类
   =========================================== */

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* ===========================================
   Print Styles - 打印样式
   =========================================== */

@media print {
    .product-overlay,
    .hero-actions,
    .cta-actions,
    .products-controls {
        display: none !important;
    }
    
    .product-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .category-hero-section {
        height: auto;
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }
}