/* Vibrant purple-gray theme CSS variables */
:root {
    --primary-color: #9378b8;
    --primary-dark: #785a96;
    --primary-light: #ab9dc8;
    --secondary-color: #6b7280;
    --accent-color: #6fa8d6;
    --accent-dark: #5985b3;
    --accent-light: #8fc4e8;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-purple-light: #f8f5fc;
    --border-color: #e5e7eb;
    --border-purple: #e4d9f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Article page specific variables */
    --article-max-width: 900px;
    --reading-line-height: 1.8;
    --content-spacing: 3rem;
    
    /* Vibrant purple-gray theme gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    --gradient-purple-soft: linear-gradient(135deg, #f8f5fc, #f1eff6);
    --gradient-hero: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    --gradient-card: linear-gradient(135deg, rgba(147, 120, 184, 0.1), rgba(111, 168, 214, 0.08));
    
    /* Performance optimization variables */
    --will-change-transform: transform;
    --will-change-opacity: opacity;
    --will-change-auto: auto;
    --gpu-layer: translateZ(0);
    --animation-fill-mode: both;
}

/* Vibrant purple-gray dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #ab9dc8;
        --primary-dark: #9378b8;
        --primary-light: #c3b6d8;
        --accent-color: #8fc4e8;
        --accent-dark: #6fa8d6;
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --text-muted: #9ca3af;
        --bg-primary: #111827;
        --bg-secondary: #0f172a;
        --bg-tertiary: #1f2937;
        --bg-purple-light: #1e1c2a;
        --border-color: #374151;
        --border-purple: #4d455c;
    }
    
    .article-featured-image img {
        opacity: 0.9;
    }
    
    .highlight-box {
        background: rgba(37, 99, 235, 0.1);
    }
    
    .tips-box {
        background: rgba(34, 197, 94, 0.1);
    }
    
    .warning-box {
        background: rgba(245, 158, 11, 0.1);
    }
}

/* Performance optimized reset styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Optimized base styles */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    overflow-x: hidden;
}

/* Accessibility features */
.skip-links {
    position: absolute;
    top: -40px;
    left: 6px;
    z-index: 9999;
}

.skip-link {
    position: absolute;
    left: -10000px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.skip-link:focus {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    left: auto;
}

/* Article page accessibility optimization */
.article-header [aria-current="page"],
.toc-nav a:focus,
.share-btn:focus,
.submit-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.article-header h1,
.article-body h2,
.article-body h3 {
    scroll-margin-top: 100px;
}

.content-section {
    scroll-margin-top: 100px;
}

/* Screen reader optimization */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Container optimization */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Top information bar */
.top-bar {
    background: linear-gradient(135deg, var(--primary-color), #3b82f6);
    color: white;
    padding: 8px 0;
    font-size: var(--font-size-sm);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-links a {
    color: white;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
    opacity: 0.8;
}

.social-links a:hover {
    opacity: 1;
    transform: translateY(-1px);
}

/* Header navigation optimization */
.header {
    background: var(--bg-primary);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

/* Logo text styles */
.logo {
    display: flex;
    align-items: center;
}

.logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition-fast);
}

.logo a:hover {
    transform: translateY(-1px);
}

.logo a:hover .logo-icon {
    transform: rotate(5deg) scale(1.1);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.logo a:hover .logo-main {
    background: linear-gradient(135deg, #1d4ed8, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.logo-icon::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    top: 8px;
    left: 8px;
}

.logo-icon::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    top: 12px;
    left: 12px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: var(--primary-color); /* Fallback for browsers that don't support background-clip */
    letter-spacing: -0.025em;
    font-family: var(--font-sans);
    transition: var(--transition-fast);
    
    /* Compatibility support */
    -moz-background-clip: text;
    -moz-text-fill-color: transparent;
}

/* Fallback for browsers that don't support background-clip */
@supports not (background-clip: text) {
    .logo-main {
        color: var(--primary-color);
        background: none;
    }
}

.logo-subtitle {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: -2px;
    letter-spacing: 0.05em;
}

/* Mobile logo optimization */
@media (max-width: 768px) {
    .logo-icon {
        width: 35px;
        height: 35px;
    }
    
    .logo-icon::before {
        width: 18px;
        height: 18px;
        top: 7px;
        left: 7px;
    }
    
    .logo-icon::after {
        width: 10px;
        height: 10px;
        top: 11px;
        left: 11px;
    }
    
    .logo-main {
        font-size: 1.5rem;
    }
    
    .logo-subtitle {
        font-size: 0.6rem;
    }
}

@media (max-width: 480px) {
    .logo a {
        gap: 0.5rem;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    .logo-icon::before {
        width: 16px;
        height: 16px;
        top: 6px;
        left: 6px;
    }
    
    .logo-icon::after {
        width: 8px;
        height: 8px;
        top: 10px;
        left: 10px;
    }
    
    .logo-main {
        font-size: 1.25rem;
    }
    
    .logo-subtitle {
        font-size: 0.55rem;
    }
}

/* Footer logo styles */
.footer-logo {
    margin-bottom: 1.5rem;
}

.footer-logo .logo-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, white, #f8fafc);
    box-shadow: var(--shadow-sm);
}

.footer-logo .logo-icon::before {
    background: rgba(37, 99, 235, 0.3);
    width: 22px;
    height: 22px;
    top: 9px;
    left: 9px;
}

.footer-logo .logo-icon::after {
    background: var(--primary-color);
    width: 14px;
    height: 14px;
    top: 13px;
    left: 13px;
}

.footer-logo .logo-main {
    font-size: 1.5rem;
    background: linear-gradient(135deg, white, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: white;
}

.footer-logo .logo-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* Navigation menu */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

/* Dropdown menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-5px) scale(0.95);
    background: var(--bg-primary);
    min-width: 180px;
    max-width: 250px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    padding: 0.5rem;
    backdrop-filter: blur(8px);
    margin-top: 0.25rem;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0) scale(1);
}

.dropdown-menu li {
    list-style: none;
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dropdown-menu a:hover {
    background: var(--primary-color);
    color: white;
    transform: none;
}

/* Centered alignment optimization for specific navigation dropdown menus */
.nav-menu li:first-child .dropdown-menu {
    left: 0;
    transform: translateY(-5px) scale(0.95);
}

.nav-menu li:first-child:hover .dropdown-menu {
    transform: translateY(0) scale(1);
}

.nav-menu li:last-child .dropdown-menu,
.nav-menu li:nth-last-child(2) .dropdown-menu,
.nav-menu li:nth-last-child(3) .dropdown-menu {
    left: auto;
    right: 0;
    transform: translateY(-5px) scale(0.95);
}

.nav-menu li:last-child:hover .dropdown-menu,
.nav-menu li:nth-last-child(2):hover .dropdown-menu,
.nav-menu li:nth-last-child(3):hover .dropdown-menu {
    transform: translateY(0) scale(1);
}

/* Ensure dropdown menus are not obscured by other elements */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

/* Viewport boundary protection */
@media (max-width: 1200px) {
    .dropdown-menu {
        left: 0;
        transform: translateY(-5px) scale(0.95);
        min-width: 160px;
    }
    
    .dropdown:hover .dropdown-menu {
        transform: translateY(0) scale(1);
    }
    
    .nav-menu li:nth-last-child(-n+3) .dropdown-menu {
        left: auto;
        right: 0;
    }
}

/* Mobile dropdown menu optimization */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
        background: var(--bg-tertiary);
        margin: 0.5rem 0 0 1rem;
        border-radius: var(--radius-sm);
        border: none;
        min-width: auto;
        max-width: none;
        padding: 0.25rem;
    }
    
    .dropdown-menu a {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .dropdown-menu a:hover {
        background: var(--bg-primary);
        color: var(--primary-color);
    }
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Banner section */
.banner {
    position: relative;
    height: 400px;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin: 2rem 0;
}

.banner-image {
    position: relative;
    height: 100%;
    overflow: hidden;
}

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

/* Main content area */
.main-content {
    padding: 2rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    margin: 0 auto;
    border-radius: 2px;
}

/* Grid layout optimization */
.posts-grid,
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Card styles */
.post-card,
.product-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    cursor: pointer;
    height: fit-content;
}

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

.post-image,
.product-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

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

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

.post-content {
    padding: 1.5rem;
}

.post-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.post-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.post-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.post-meta .category {
    background: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--primary-color);
    font-weight: 500;
}

/* Featured articles */
.post-card.featured {
    grid-column: span 2;
}

.post-card.featured .post-content {
    padding: 2rem;
}

.post-card.featured h3 {
    font-size: var(--font-size-2xl);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 3rem 0;
}

.page-number {
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition-fast);
    border: 2px solid transparent;
}

.page-number:hover {
    background: var(--primary-color);
    color: white;
}

.page-number.current {
    background: var(--primary-color);
    color: white;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.contact-info p {
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.contact-info i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* Newsletter subscription form */
.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.newsletter-form input {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

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

.newsletter-form button {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.newsletter-form button:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

/* Animation classes */
.animate-in {
    animation: slideInUp 0.6s ease-out forwards;
}

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

/* Image lazy loading */
img {
    transition: opacity 0.3s ease;
}

img.loaded {
    opacity: 1;
}

/* Responsive design */
@media (max-width: 1024px) {
    .container {
        padding: 0 16px;
    }
    
    .posts-grid,
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }
    
    .post-card.featured {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    /* Mobile navigation */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 2rem 0;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: var(--transition-normal);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--bg-tertiary);
        margin-top: 0.5rem;
    }
    
    /* Mobile layout */
    .container {
        padding: 0 16px;
    }
    
    .banner {
        height: 250px;
        margin: 1rem 0;
    }
    
    .section-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .posts-grid,
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .top-bar-content {
        justify-content: center;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .header-content {
        padding: 0.75rem 0;
    }
    
    .logo img {
        height: 40px;
    }
    
    .banner {
        height: 200px;
        border-radius: var(--radius-md);
    }
    
    .post-content,
    .post-card.featured .post-content {
        padding: 1.25rem;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-header h2 {
        font-size: var(--font-size-xl);
    }
    
    /* Article form responsive */
    .comment-form {
        padding: 1rem;
    }
    
    .comment-form input,
    .comment-form textarea {
        font-size: var(--font-size-sm);
        padding: 0.6rem;
    }
    
    .submit-btn {
        padding: 0.6rem 1.5rem;
        font-size: var(--font-size-sm);
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .back-to-top,
    .mobile-menu-toggle,
    .article-share,
    .breadcrumb,
    .related-articles,
    .comments-section {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .article-main {
        background: white;
    }
    
    .article-header,
    .article-body,
    .article-intro {
        background: white;
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
    
    .article-header h1 {
        color: black;
        font-size: 24pt;
    }
    
    .article-body h2 {
        color: black;
        font-size: 18pt;
        border-bottom: 1px solid #ccc;
    }
    
    .article-body h3 {
        color: black;
        font-size: 16pt;
    }
    
    .highlight-box {
        border: 2px solid #ccc;
        background: #f5f5f5;
    }
    
    .post-card,
    .product-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* High contrast support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: #000000;
    }
    
    .article-header {
        border: 2px solid #000000;
    }
    
    .highlight-box,
    .tips-box,
    .warning-box {
        border-width: 2px;
    }
    
    .share-btn {
        border: 1px solid #000000;
    }
}

/* Breadcrumb navigation */
.breadcrumb {
    background: var(--bg-tertiary);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
}

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

.breadcrumb span[aria-current="page"] {
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.breadcrumb-list li:not(:last-child)::after {
    content: '>';
    color: var(--text-muted);
    margin-left: 0.5rem;
    font-size: var(--font-size-sm);
}

/* Breadcrumb responsive */
@media (max-width: 768px) {
    .breadcrumb {
        padding: 0.75rem 0;
    }
    
    .breadcrumb a,
    .breadcrumb span[aria-current="page"],
    .breadcrumb-list li::after {
        font-size: var(--font-size-xs);
    }
}

/* Article page styles */
.article-main {
    background: var(--bg-secondary);
    min-height: 100vh;
}

.article-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

/* Enhanced article header */
.article-header {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 3rem;
    margin-bottom: 3rem;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.article-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.article-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.article-header h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
    text-align: left;
}

.article-subtitle {
    margin-bottom: 2rem;
}

.article-subtitle p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    font-style: italic;
}

.article-meta {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    flex-shrink: 0;
}

.author-avatar img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-tertiary);
}

.author-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.author-title {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.article-stats {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.stat-item i {
    color: var(--primary-color);
}

/* Social sharing buttons */
.article-share {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.share-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.share-buttons {
    display: flex;
    gap: 0.75rem;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 16px;
    color: white;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.share-btn.facebook {
    background: #1877f2;
}

.share-btn.twitter {
    background: #1da1f2;
}

.share-btn.wechat {
    background: #07c160;
}

.share-btn.weibo {
    background: #e6162d;
}

.share-btn.copy-link {
    background: var(--text-secondary);
}

/* Article featured image */
.article-featured-image {
    margin: 3rem 0;
    text-align: center;
}

.article-featured-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.image-caption {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.image-caption p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-style: italic;
    margin: 0;
}

/* Article introduction and table of contents */
.article-intro {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 3rem 0;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.article-summary h2 {
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: 1rem;
}

.article-summary p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.key-points {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-color);
}

.key-points h3 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 1rem;
}

.key-points ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.key-points li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.key-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.article-excerpt {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-style: italic;
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.article-image {
    margin: 2rem 0;
    text-align: center;
}

.article-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.article-share {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: var(--transition-fast);
}

.share-btn:hover {
    transform: translateY(-2px);
}

.share-btn i {
    font-size: 18px;
}

.share-btn:nth-child(2) { background: #1877f2; }
.share-btn:nth-child(3) { background: #1da1f2; }
.share-btn:nth-child(4) { background: #e60012; }
.share-btn:nth-child(5) { background: #07c160; }

/* Article table of contents */
.article-toc {
    margin-top: 2rem;
}

.article-toc h3 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-toc h3::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 2px;
}

.toc-nav {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.toc-nav ol {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: toc-counter;
}

.toc-nav > ol > li {
    counter-increment: toc-counter;
    margin-bottom: 0.75rem;
}

.toc-nav > ol > li > a::before {
    content: counter(toc-counter) ". ";
    color: var(--primary-color);
    font-weight: 600;
}

.toc-nav ol ol {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
    counter-reset: toc-sub-counter;
}

.toc-nav ol ol li {
    counter-increment: toc-sub-counter;
}

.toc-nav ol ol li a::before {
    content: counter(toc-counter) "." counter(toc-sub-counter) " ";
    color: var(--text-muted);
    font-weight: 500;
}

.toc-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    display: block;
    padding: 0.5rem 0;
    border-radius: var(--radius-sm);
    line-height: 1.5;
}

.toc-nav a:hover {
    color: var(--primary-color);
    background: var(--bg-tertiary);
    padding-left: 0.5rem;
    margin-left: -0.5rem;
}

.toc-nav a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Article content body */
.article-body {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 3rem;
    margin: 3rem 0;
    box-shadow: var(--shadow-sm);
    line-height: 1.8;
    color: var(--text-primary);
}

.content-section {
    margin-bottom: 3rem;
    scroll-margin-top: 100px;
}

.subsection {
    margin: 2rem 0;
    padding-left: 1rem;
    border-left: 3px solid var(--bg-tertiary);
}

.section-number {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    text-align: center;
    line-height: 28px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-right: 0.75rem;
}

.article-body h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.article-body h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 2rem 0 1rem 0;
}

.article-body h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 1.5rem 0 0.75rem 0;
}

.article-body p {
    margin-bottom: 1.5rem;
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.article-body blockquote {
    background: var(--bg-tertiary);
    border-left: 4px solid var(--accent-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: var(--radius-md);
    font-style: italic;
    color: var(--text-secondary);
}

.article-body code {
    background: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
}

.article-body pre {
    background: var(--text-primary);
    color: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Special content boxes */
.highlight-box,
.tips-box,
.warning-box {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: var(--radius-md);
    border: 1px solid;
    position: relative;
}

.highlight-box {
    background: #f0f9ff;
    border-color: var(--primary-color);
}

.highlight-box > i {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.highlight-content {
    flex: 1;
}

.highlight-content h4 {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.highlight-content p {
    color: var(--text-primary);
    margin: 0;
    line-height: 1.6;
}

.tips-box {
    background: #f0fdf4;
    border-color: #22c55e;
}

.warning-box {
    background: #fffbeb;
    border-color: #f59e0b;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.benefit-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.benefit-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.benefit-item h4 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

/* Product comparison table */
.comparison-table {
    overflow-x: auto;
    margin: 1.5rem 0;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
}

/* Step-by-step guide */
.setup-steps {
    margin: 2rem 0;
}

.step {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.step-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Scenario cards */
.scenario-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.scenario-card {
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.scenario-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.scenario-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

/* Key takeaways */
.key-takeaways {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-radius: var(--radius-md);
    margin: 2rem 0;
    border: 1px solid var(--border-color);
}

.key-takeaways h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.key-takeaways ul {
    margin: 0;
}

/* Article tags */
.article-tags {
    margin: 3rem 0 2rem 0;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.article-tags h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.tag {
    display: inline-block;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: var(--font-size-sm);
    margin: 0.25rem 0.5rem 0.25rem 0;
    transition: var(--transition-fast);
}

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

/* Author information */
.article-author {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin: 2rem 0;
}

.author-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.author-info p {
    color: var(--text-secondary);
    margin: 0;
}

/* Related articles */
.related-articles {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 3rem;
    margin: 3rem 0;
    box-shadow: var(--shadow-sm);
}

.related-articles h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-primary);
    text-align: center;
    position: relative;
}

.related-articles h3::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.related-post {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    text-decoration: none;
    color: inherit;
    display: block;
    border: 2px solid transparent;
}

.related-post:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.related-post img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition-normal);
}

.related-post:hover img {
    transform: scale(1.05);
}

.related-post-content {
    padding: 2rem;
}

.related-post-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.related-post-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    font-size: var(--font-size-sm);
}

/* Comments section */
.comments-section {
    margin: 3rem 0;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.comments-section h3 {
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.comment-form {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
}

.comment-form h4 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.comment-form input,
.comment-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

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

.comment-form button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.comment-form button:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

.comments-list {
    margin-top: 2rem;
}

.comment {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.comment-avatar img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.comment-author {
    font-weight: 600;
    color: var(--text-primary);
}

.comment-date {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.comment-content p {
    margin: 0;
    color: var(--text-secondary);
}

/* Page-specific styles */
/* Category page header */
.category-header {
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    color: white;
    padding: 4rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.category-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwIiBoZWlnaHQ9IjEwMCIgdmlld0JveD0iMCAwIDEwMCAxMDAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGRlZnM+PHBhdHRlcm4gaWQ9ImdyaWQiIHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIiBwYXR0ZXJuVW5pdHM9InVzZXJTcGFjZU9uVXNlIj48cGF0aCBkPSJNIDEwMCAwIEwgMCAwIDAgMTAwIiBmaWxsPSJub25lIiBzdHJva2U9InJnYmEoMjU1LDI1NSwyNTUsMC4xKSIgc3Ryb2tlLXdpZHRoPSIxIi8+PC9wYXR0ZXJuPjwvZGVmcz48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBmaWxsPSJ1cmwoI2dyaWQpIi8+PC9zdmc+');
    opacity: 0.3;
}

.category-hero {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.category-hero h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.category-hero p {
    font-size: var(--font-size-lg);
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.category-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.category-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

/* Category navigation */
.category-nav {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.category-nav h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.category-tags {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.category-tag {
    padding: 0.75rem 1.5rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: var(--transition-fast);
    border: 2px solid transparent;
}

.category-tag:hover,
.category-tag.active {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Article grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.article-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.article-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

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

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

.article-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.article-content {
    padding: 2rem;
}

.article-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.article-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.article-meta {
    display: flex;
    gap: 1.5rem;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    flex-wrap: wrap;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Contact page styles */
.contact-main {
    padding: 3rem 0;
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info-section,
.contact-form-section,
.cooperation-section {
    margin-bottom: 4rem;
}

.contact-info-section h2,
.contact-form-section h2,
.cooperation-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

/* Contact cards */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.contact-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition-normal);
}

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

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.contact-icon i {
    font-size: 2rem;
    color: white;
}

.contact-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.contact-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.contact-card p:first-of-type {
    font-weight: 600;
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

/* Contact form */
.contact-form {
    background: var(--bg-primary);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    max-width: 800px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-help {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin: 0;
}

.submit-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 2rem auto 0;
}

.submit-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Cooperation types */
.cooperation-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.cooperation-item {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.cooperation-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.cooperation-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cooperation-item h3 i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.cooperation-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Quick contact styles */
.quick-contact-section {
    margin-bottom: 4rem;
}

.quick-contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.quick-contact-item {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

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

.quick-contact-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.quick-contact-item h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.quick-contact-item p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: var(--font-size-sm);
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.contact-btn:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

/* Form introduction and footer */
.form-intro {
    text-align: center;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.form-intro p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-base);
}

.form-footer {
    text-align: center;
    margin-top: 1rem;
}

.form-footer .form-help {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Article form styles */
.comment-form .form-group {
    margin-bottom: 1.5rem;
}

.comment-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.comment-form input,
.comment-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: white;
    transition: var(--transition-fast);
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.submit-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.submit-btn:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.submit-btn i {
    font-size: 14px;
}

/* Featured recommendation section */
.featured-section {
    margin: 3rem 0;
}

.featured-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.featured-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.featured-large {
    grid-row: span 1;
}

.featured-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    cursor: pointer;
    height: 100%;
}

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

.featured-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/2;
}

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

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

.featured-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: linear-gradient(135deg, var(--accent-color), #f59e0b);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.featured-content {
    padding: 2rem;
}

.featured-category {
    display: inline-block;
    background: var(--bg-tertiary);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.featured-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.featured-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.featured-stats {
    display: flex;
    gap: 1.5rem;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.featured-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Small cards section */
.featured-small {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.featured-mini {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    cursor: pointer;
    display: flex;
    gap: 1rem;
    padding: 1rem;
}

.featured-mini:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.featured-mini img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.mini-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.mini-content h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.mini-views {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Beauty topics styles */
.beauty-topics {
    margin: 3rem 0;
}

.beauty-topics h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.topic-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
}

.topic-card.skincare::before {
    background: linear-gradient(135deg, #10b981, #059669);
}

.topic-card.makeup::before {
    background: linear-gradient(135deg, #ec4899, #db2777);
}

.topic-card.fashion::before {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.topic-card.wellness::before {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

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

.topic-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.topic-card.skincare .topic-icon {
    background: linear-gradient(135deg, #10b981, #059669);
}

.topic-card.makeup .topic-icon {
    background: linear-gradient(135deg, #ec4899, #db2777);
}

.topic-card.fashion .topic-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.topic-card.wellness .topic-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.topic-icon i {
    font-size: 1.5rem;
    color: white;
}

.topic-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.topic-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: var(--font-size-sm);
}

.topic-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.topic-list li {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 1.5rem;
}

.topic-list li:last-child {
    border-bottom: none;
}

.topic-list li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0.5rem;
}

.topic-card.skincare .topic-list li::before {
    color: #10b981;
}

.topic-card.makeup .topic-list li::before {
    color: #ec4899;
}

.topic-card.fashion .topic-list li::before {
    color: #8b5cf6;
}

.topic-card.wellness .topic-list li::before {
    color: #f59e0b;
}

/* About page styles */
.company-intro {
    margin: 3rem 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.intro-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.intro-text p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: var(--font-size-base);
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* Mission and vision */
.mission-vision {
    margin: 4rem 0;
    background: var(--bg-secondary);
    padding: 3rem;
    border-radius: var(--radius-lg);
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.mission-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.mission-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.mission-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.mission-icon i {
    font-size: 2rem;
    color: white;
}

.mission-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.mission-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Core values */
.core-values {
    margin: 4rem 0;
}

.core-values h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.value-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border-left: 4px solid var(--primary-color);
}

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

.value-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.value-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.value-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.value-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Team showcase */
.team-section {
    margin: 4rem 0;
}

.team-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    text-align: center;
}

.team-intro {
    text-align: center;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-member {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    text-align: center;
}

.team-member:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.member-image {
    position: relative;
    overflow: hidden;
}

.member-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-normal);
}

.team-member:hover .member-image img {
    transform: scale(1.05);
}

.member-info {
    padding: 2rem;
}

.member-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.member-role {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1rem;
    font-size: var(--font-size-sm);
}

.member-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

/* Development timeline */
.company-timeline {
    margin: 4rem 0;
    background: var(--bg-secondary);
    padding: 3rem;
    border-radius: var(--radius-lg);
}

.company-timeline h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3rem;
    text-align: center;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-year {
    background: var(--primary-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-lg);
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    width: 100px;
    text-align: center;
}

.timeline-content {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    flex: 1;
    margin: 0 2rem;
}

.timeline-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Achievements statistics */
.achievements {
    margin: 4rem 0;
    text-align: center;
}

.achievements h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3rem;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.achievement-item {
    background: var(--bg-primary);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.achievement-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.achievement-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.achievement-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Content areas */
.content-areas {
    margin: 4rem 0;
}

.content-areas h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3rem;
    text-align: center;
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.area-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    text-align: center;
}

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

.area-icon {
    width: 70px;
    height: 70px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.area-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.area-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.area-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact CTA */
.contact-cta {
    margin: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    color: white;
    padding: 4rem 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
}

.cta-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: var(--font-size-lg);
    margin-bottom: 2rem;
    opacity: 0.9;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
}

.contact-method i {
    font-size: 1.2rem;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Technology trends styles */
.tech-trends {
    margin: 3rem 0;
}

.tech-trends h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.trends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.trend-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.trend-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
}

.trend-card.ai::before {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.trend-card.iot::before {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
}

.trend-card.sustainability::before {
    background: linear-gradient(135deg, #10b981, #059669);
}

.trend-card.ar-vr::before {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.trend-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.trend-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.trend-card.ai .trend-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.trend-card.iot .trend-icon {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
}

.trend-card.sustainability .trend-icon {
    background: linear-gradient(135deg, #10b981, #059669);
}

.trend-card.ar-vr .trend-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.trend-icon i {
    font-size: 1.8rem;
    color: white;
}

.trend-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.trend-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: var(--font-size-sm);
}

.trend-stats {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trend-growth {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.trend-card.ai .trend-growth {
    color: #8b5cf6;
}

.trend-card.iot .trend-growth {
    color: #06b6d4;
}

.trend-card.sustainability .trend-growth {
    color: #10b981;
}

.trend-card.ar-vr .trend-growth {
    color: #f59e0b;
}

.trend-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 500;
}

/* Homepage statistics data */
.stats-section {
    background: var(--bg-secondary);
    padding: 4rem 0;
    margin: 4rem 0;
}

.stats-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.stats-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.stats-text p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: var(--font-size-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.stat-item {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* Homepage subscription section */
.newsletter-section {
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
    color: white;
    padding: 4rem 0;
    margin: 4rem 0;
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.newsletter-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 1rem;
}

.newsletter-text p {
    font-size: var(--font-size-lg);
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.7;
}

.newsletter-benefits {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: var(--font-size-base);
}

.benefit-item i {
    color: #10b981;
    font-size: 1.2rem;
}

.newsletter-form-container {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.newsletter-form-main {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.newsletter-form-main .form-group {
    display: flex;
    flex-direction: column;
}

.newsletter-form-main input {
    padding: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

.newsletter-form-main input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.newsletter-form-main input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.15);
}

.newsletter-submit {
    background: white;
    color: var(--primary-color);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.newsletter-submit:hover {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.privacy-notice {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.privacy-notice i {
    color: #10b981;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .share-btn:hover,
    .submit-btn:hover {
        transform: none;
    }
    
    .highlight-box:hover,
    .related-post:hover {
        transform: none;
    }
}

/* Page responsive design */
@media (max-width: 1024px) {
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .topics-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .contact-cards {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    /* Category page header */
    .category-hero h1 {
        font-size: var(--font-size-2xl);
    }
    
    .category-hero p {
        font-size: var(--font-size-base);
    }
    
    .category-stats {
        justify-content: center;
        gap: 1rem;
    }
    
    .category-stats span {
        font-size: var(--font-size-xs);
        padding: 0.4rem 0.8rem;
    }
    
    /* Navigation tags */
    .category-tags {
        gap: 0.5rem;
    }
    
    .category-tag {
        padding: 0.5rem 1rem;
        font-size: var(--font-size-sm);
    }
    
    /* Article grid */
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .article-content {
        padding: 1.5rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    
    /* Featured recommendations */
    .featured-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .featured-small {
        flex-direction: row;
        gap: 1rem;
        overflow-x: auto;
        padding-bottom: 1rem;
    }
    
    .featured-mini {
        min-width: 200px;
        flex-shrink: 0;
    }
    
    /* Beauty topics */
    .topics-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .topic-card {
        padding: 1.5rem;
    }
    
    /* Contact page */
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .quick-contact-grid {
        grid-template-columns: 1fr;
    }
    
    .cooperation-types {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact-form {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .category-header {
        padding: 2rem 0 1.5rem;
    }
    
    .category-hero h1 {
        font-size: var(--font-size-xl);
    }
    
    .category-stats {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .articles-grid {
        gap: 1rem;
    }
    
    .article-content {
        padding: 1rem;
    }
    
    .topic-card {
        padding: 1rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    /* About page mobile */
    .intro-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .mission-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 2rem;
    }
    
    .timeline-item {
        flex-direction: row;
        margin-left: 3rem;
    }
    
    .timeline-item:nth-child(odd) {
        flex-direction: row;
    }
    
    .timeline-year {
        width: 80px;
        padding: 0.75rem 1rem;
    }
    
    .timeline-content {
        margin: 0 0 0 1rem;
    }
    
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .areas-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-cta {
        padding: 2rem;
    }
    
    .contact-methods {
        flex-direction: column;
        gap: 1rem;
    }
    
    /* Technology trends mobile */
    .trends-grid {
        grid-template-columns: 1fr;
    }
    
    /* Homepage new modules mobile */
    .stats-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .newsletter-form-container {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    /* Small screen further optimization */
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
    }
    
    .trends-grid {
        gap: 1rem;
    }
    
    .trend-card {
        padding: 1.5rem;
    }
    
    /* Article page small screen optimization */
    .article-header {
        padding: 1.5rem 1rem;
        margin: 0.5rem;
    }
    
    .article-header h1 {
        font-size: var(--font-size-xl);
    }
    
    .article-category-badge {
        padding: 0.4rem 0.8rem;
        font-size: var(--font-size-xs);
    }
    
    .author-avatar img {
        width: 40px;
        height: 40px;
    }
    
    .author-name {
        font-size: var(--font-size-sm);
    }
    
    .article-stats {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .stat-item {
        width: 100%;
        justify-content: center;
    }
    
    .share-buttons {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .share-btn {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .article-intro {
        padding: 1rem;
    }
    
    .key-points {
        padding: 1rem;
    }
    
    .toc-nav {
        padding: 0.75rem;
    }
    
    .toc-nav a {
        font-size: var(--font-size-sm);
        padding: 0.4rem 0;
    }
    
    .article-body {
        padding: 1.5rem 1rem;
    }
    
    .article-body h2 {
        font-size: var(--font-size-xl);
    }
    
    .article-body h3 {
        font-size: var(--font-size-lg);
    }
    
    .section-number {
        width: 24px;
        height: 24px;
        line-height: 24px;
        font-size: var(--font-size-xs);
    }
    
    .subsection {
        padding-left: 0.5rem;
        border-left-width: 2px;
    }
    
    .highlight-box {
        padding: 0.75rem;
    }
    
    .highlight-content h4 {
        font-size: var(--font-size-base);
    }
    
    .related-articles {
        padding: 1.5rem 1rem;
    }
    
    .related-post-content {
        padding: 1rem;
    }
    
    .related-post-content h4 {
        font-size: var(--font-size-base);
    }
}

/* Article page responsive */
@media (max-width: 768px) {
    .article-main {
        padding-top: 1rem;
    }
    
    .article-content {
        padding: 1rem 0;
    }
    
    .article-header {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .article-header h1 {
        font-size: var(--font-size-2xl);
        text-align: center;
    }
    
    .article-subtitle p {
        font-size: var(--font-size-base);
        text-align: center;
    }
    
    .article-meta {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
    }
    
    .author-info {
        justify-content: center;
    }
    
    .article-stats {
        justify-content: center;
        gap: 1rem;
    }
    
    .stat-item {
        font-size: var(--font-size-xs);
        padding: 0.4rem 0.8rem;
    }
    
    .article-share {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        padding: 1rem;
    }
    
    .share-buttons {
        justify-content: center;
    }
    
    .article-featured-image {
        margin: 2rem 1rem;
    }
    
    .article-intro {
        margin: 2rem 1rem;
        padding: 1.5rem;
    }
    
    .article-toc {
        margin: 2rem 1rem;
    }
    
    .toc-nav {
        padding: 1rem;
    }
    
    .article-body {
        margin: 2rem 1rem;
        padding: 2rem 1.5rem;
    }
    
    .highlight-box {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
    
    .highlight-box > i {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }
    
    .related-articles {
        margin: 2rem 1rem;
        padding: 2rem 1.5rem;
    }
    
    .related-posts-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .related-post-content {
        padding: 1.5rem;
    }
    
    .article-tags {
        margin: 2rem 1rem;
    }
    
    .tags-list {
        justify-content: center;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        font-size: var(--font-size-sm);
    }
    
    .step {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
    
    .scenario-cards {
        grid-template-columns: 1fr;
    }
    
    .article-author {
        flex-direction: column;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .comment {
        flex-direction: column;
    }
    
    .comment-header {
        justify-content: center;
    }
}

/* Optimized breadcrumb navigation styles */
.breadcrumb-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
}

.breadcrumb-separator {
    color: var(--text-muted);
    margin: 0 0.25rem;
    user-select: none;
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

/* Breadcrumb responsive optimization */
@media (max-width: 768px) {
    .breadcrumb {
        padding: 0.5rem 0;
    }
    
    .breadcrumb-links {
        font-size: var(--font-size-xs);
        gap: 0.25rem;
    }
    
    .breadcrumb-separator {
        margin: 0 0.125rem;
    }
}

/* Modern purple theme enhanced styles */

/* Homepage specific styles */
.homepage .hero-section {
    background: var(--gradient-hero);
    min-height: 60vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.homepage .hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="rgba(255,255,255,0.05)" fill-opacity="0.1"><circle cx="30" cy="30" r="2"/></g></svg>') repeat;
    opacity: 0.3;
}

.homepage .hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.homepage .hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.homepage .hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: 2rem;
    opacity: 0.9;
}

.homepage .hero-cta {
    display: inline-flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.homepage .featured-categories {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.homepage .categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.homepage .category-preview {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.homepage .category-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
    transform-origin: left;
}

.homepage .category-preview:hover::before {
    transform: scaleX(1);
}

.homepage .category-preview:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-lg);
    border-color: var(--border-purple);
}

.homepage .category-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.homepage .category-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.homepage .category-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.homepage .category-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.homepage .category-link:hover {
    color: var(--primary-dark);
    transform: translateX(3px);
}

/* Gradient buttons and links */
.btn-primary,
.category-tag.active,
.newsletter-submit,
.back-to-top {
    background: var(--gradient-primary);
    border: none;
    color: white;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover,
.newsletter-submit:hover,
.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(147, 120, 184, 0.28);
}

.btn-primary::before,
.newsletter-submit::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 0.5s;
}

.btn-primary:hover::before,
.newsletter-submit:hover::before {
    left: 100%;
}

/* Category page header gradient */
.category-header {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.category-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="rgba(255,255,255,0.05)" fill-opacity="0.1"><circle cx="30" cy="30" r="2"/></g></svg>') repeat;
    opacity: 0.3;
}

.category-hero {
    position: relative;
    z-index: 1;
}

/* Article card purple theme */
.article-card {
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
    transform-origin: left;
}

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

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(147, 120, 184, 0.18);
    border-color: var(--border-purple);
}

.article-category {
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* Top bar purple theme */
.top-bar {
    background: var(--gradient-primary);
    position: relative;
}

.top-bar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

/* Footer gradient */
.footer {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-purple-light) 100%);
    border-top: 1px solid var(--border-purple);
}

/* Links and interactive elements */
a:not(.btn):not(.article-card) {
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

a:not(.btn):not(.article-card):hover {
    color: var(--primary-dark);
    text-decoration-color: var(--accent-color);
}

/* Input focus effects */
input:focus,
textarea:focus,
select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(147, 120, 184, 0.15);
    outline: none;
}

/* Pagination buttons */
.pagination .page-number {
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.pagination .page-number:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.pagination .page-number.current {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-color);
}

/* Loading animations and effects */
@keyframes shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

.loading-shimmer {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-purple-light) 50%, var(--bg-tertiary) 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}

/* Vibrant gray-purple theme shadows */
.card-shadow {
    box-shadow: 0 4px 6px -1px rgba(147, 120, 184, 0.12), 
                0 2px 4px -1px rgba(111, 168, 214, 0.08);
}

.card-shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(147, 120, 184, 0.15), 
                0 4px 6px -2px rgba(111, 168, 214, 0.1);
}

/* Image optimization and lazy loading */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

img[data-src].loaded {
    opacity: 1;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

.image-placeholder {
    background: var(--gradient-purple-soft);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Performance optimization classes */
.will-change-transform {
    will-change: var(--will-change-transform);
}

.will-change-opacity {
    will-change: var(--will-change-opacity);
}

.gpu-accelerated {
    transform: var(--gpu-layer);
}

/* Unified responsive design */
@media (max-width: 1200px) {
    .container {
        max-width: 1140px;
        padding: 0 1.5rem;
    }
    
    .homepage .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 960px;
        padding: 0 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
        width: 100%;
    }
    
    .articles-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
    }
    
    .category-header {
        padding: 3rem 0;
    }
    
    .category-hero h1 {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 720px;
        padding: 0 1rem;
    }
    
    .top-bar-content {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .homepage .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .homepage .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .homepage .categories-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .category-stats {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .category-header {
        padding: 2rem 0;
    }
    
    .category-hero h1 {
        font-size: var(--font-size-2xl);
    }
    
    .homepage .category-preview {
        padding: 1.5rem;
    }
    
    .article-card {
        margin-bottom: 1rem;
    }
}

/* Performance optimization media queries */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .article-card:hover,
    .homepage .category-preview:hover,
    .btn-primary:hover {
        transform: none;
    }
}