/* ==========================================================================
   Forum Styles - Modern Community Design
   ========================================================================== */

/* CSS Variables */
:root {
    /* Forum Colors */
    --forum-primary: #6366f1;
    --forum-primary-dark: #4f46e5;
    --forum-primary-light: #a5b4fc;
    --forum-secondary: #f59e0b;
    --forum-accent: #06b6d4;
    --forum-success: #10b981;
    --forum-warning: #f59e0b;
    --forum-danger: #ef4444;
    
    /* Gradients */
    --forum-gradient-primary: linear-gradient(135deg, var(--forum-primary) 0%, var(--forum-primary-dark) 100%);
    --forum-gradient-hero: linear-gradient(135deg, var(--forum-primary) 0%, #8b5cf6 50%, var(--forum-accent) 100%);
    --forum-gradient-card: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Spacing */
    --forum-section-padding: 2rem;
    --forum-card-padding: 1.5rem;
    --forum-gap: 1.5rem;
    
    /* Shadows */
    --forum-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --forum-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --forum-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --forum-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --forum-shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Border Radius */
    --forum-radius-sm: 0.5rem;
    --forum-radius-md: 0.75rem;
    --forum-radius-lg: 1rem;
    --forum-radius-xl: 1.5rem;
    --forum-radius-2xl: 2rem;
    --forum-radius-full: 9999px;
    
    /* Transitions */
    --forum-transition-fast: 0.15s ease;
    --forum-transition-normal: 0.3s ease;
    --forum-transition-slow: 0.5s ease;
    --forum-transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  }
  
  /* ==========================================================================
     Base Styles
     ========================================================================== */
  
  .forum-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
  }
  
  /* ==========================================================================
     Breadcrumb Navigation
     ========================================================================== */
  
  .breadcrumb-nav {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    padding: 1rem 0;
  }
  
  .breadcrumb {
    background: none;
    margin: 0;
    padding: 0;
    border-radius: var(--forum-radius-full);
    overflow: hidden;
  }
  
  .breadcrumb-item {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 500;
  }
  
  .breadcrumb-item a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--forum-primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--forum-radius-lg);
    transition: all var(--forum-transition-normal);
  }
  
  .breadcrumb-item a:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
  }
  
  .breadcrumb-item.active {
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
  }
  
  .breadcrumb-item + .breadcrumb-item::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--forum-primary);
    border-radius: 50%;
    margin: 0 0.75rem;
  }
  
  /* ==========================================================================
     Hero Section
     ========================================================================== */
  
  .forum-hero {
    position: relative;
    background: var(--forum-gradient-hero);
    color: white;
    padding: 4rem 0 6rem;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
  }
  
  .hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
  }
  
  .hero-pattern {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    animation: patternMove 20s linear infinite;
  }
  
  .hero-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: heroGlow 6s ease-in-out infinite alternate;
  }
  
  @keyframes patternMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
  }
  
  @keyframes heroGlow {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
  }
  
  .hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: var(--forum-radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
  }
  
  .hero-badge i {
    color: var(--forum-secondary);
  }
  
  .hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease-out 0.4s both;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.6s both;
  }
  
  .hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.8s both;
  }
  
  .btn-hero-primary,
  .btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: var(--forum-radius-full);
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all var(--forum-transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  
  .btn-hero-primary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--forum-primary);
    box-shadow: var(--forum-shadow-lg);
  }
  
  .btn-hero-primary:hover {
    background: white;
    color: var(--forum-primary-dark);
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--forum-shadow-xl);
  }
  
  .btn-hero-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
  }
  
  .btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
  }
  
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 1s both;
  }
  
  .stat-card {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--forum-radius-xl);
    transition: all var(--forum-transition-normal);
  }
  
  .stat-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
    box-shadow: var(--forum-shadow-lg);
  }
  
  .stat-number {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 0.5rem;
  }
  
  .stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
    font-weight: 500;
  }
  
  /* ==========================================================================
     Forum Controls
     ========================================================================== */
  
  .forum-controls {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--forum-radius-2xl);
    padding: 2rem;
    margin: -3rem auto 3rem;
    position: relative;
    z-index: 10;
    box-shadow: var(--forum-shadow-xl);
  }
  
  .search-section {
    margin-bottom: 2rem;
  }
  
  .search-container {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .search-input-group {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--forum-radius-full);
    padding: 0.75rem 1.5rem;
    transition: all var(--forum-transition-normal);
    box-shadow: var(--forum-shadow-sm);
  }
  
  .search-input-group:focus-within {
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  }
  
  .search-icon {
    color: var(--forum-primary);
    font-size: 1.25rem;
    margin-right: 1rem;
  }
  
  .search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    background: transparent;
    color: var(--gray-700);
  }
  
  .search-input::placeholder {
    color: var(--gray-400);
  }
  
  .search-btn {
    background: var(--forum-gradient-primary);
    color: white;
    border: none;
    border-radius: var(--forum-radius-full);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    margin-left: 1rem;
    transition: all var(--forum-transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  
  .search-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--forum-shadow-md);
  }
  
  .search-btn .btn-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: inherit;
  }
  
  .search-btn .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
  }
  
  .search-result-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--forum-radius-lg);
    font-size: 0.875rem;
  }
  
  .result-count {
    font-weight: 600;
    color: var(--forum-primary);
  }
  
  .result-query {
    color: var(--gray-600);
  }
  
  .clear-search {
    color: var(--forum-danger);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: auto;
    transition: all var(--forum-transition-fast);
  }
  
  .clear-search:hover {
    color: var(--forum-danger);
    text-decoration: underline;
  }
  
  .filter-section {
    text-align: center;
  }
  
  .filter-tabs {
    display: inline-flex;
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--forum-radius-full);
    padding: 0.5rem;
    gap: 0.25rem;
    position: relative;
    overflow: hidden;
  }
  
  .filter-tab {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--forum-radius-full);
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: all var(--forum-transition-normal);
    white-space: nowrap;
    z-index: 1;
  }
  
  .filter-tab:hover {
    color: var(--forum-primary);
    background: rgba(255, 255, 255, 0.5);
  }
  
  .filter-tab.active {
    color: white;
    background: var(--forum-gradient-primary);
    box-shadow: var(--forum-shadow-md);
  }
  
  .filter-tab.active:hover {
    color: white;
  }
  
  .tab-indicator {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--forum-primary);
    transform: scaleX(0);
    transition: transform var(--forum-transition-normal);
  }
  
  .filter-tab.active .tab-indicator {
    transform: scaleX(1);
  }
  
  /* ==========================================================================
     Main Content Layout
     ========================================================================== */
  
  .forum-main {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    margin: 3rem 0;
  }
  
  .forum-content {
    min-width: 0; /* Prevents grid blowout */
  }
  
  .forum-sidebar {
    position: sticky;
    top: 2rem;
    height: fit-content;
  }
  
  /* ==========================================================================
     Topics Section
     ========================================================================== */
  
  .topics-header {
    margin-bottom: 2rem;
    text-align: center;
  }
  
  .topics-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: var(--forum-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .topics-subtitle {
    color: var(--gray-600);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
  }
  
  .topics-grid {
    display: grid;
    gap: 2rem;
  }
  
  /* ==========================================================================
     Topic Cards
     ========================================================================== */
  
  .topic-card {
    background: white;
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--forum-radius-2xl);
    padding: 2rem;
    transition: all var(--forum-transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: var(--forum-shadow-sm);
  }
  
  .topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--forum-gradient-card);
    opacity: 0;
    transition: opacity var(--forum-transition-normal);
    z-index: 0;
  }
  
  .topic-card:hover::before {
    opacity: 1;
  }
  
  .topic-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--forum-shadow-xl);
    border-color: rgba(99, 102, 241, 0.2);
  }
  
  .topic-card > * {
    position: relative;
    z-index: 1;
  }
  
  .topic-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .topic-type {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--forum-radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .topic-type.review-type {
    background: rgba(245, 158, 11, 0.1);
    color: var(--forum-secondary);
    border: 1px solid rgba(245, 158, 11, 0.2);
  }
  
  .topic-type.discussion-type {
    background: rgba(6, 182, 212, 0.1);
    color: var(--forum-accent);
    border: 1px solid rgba(6, 182, 212, 0.2);
  }
  
  .topic-badge {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--forum-radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: auto;
  }
  
  .new-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--forum-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
  }
  
  .hot-badge {
    background: rgba(239, 68, 68, 0.1);
    color: var(--forum-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
  }
  
  .topic-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .author-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--forum-radius-full);
    border: 3px solid rgba(99, 102, 241, 0.1);
    transition: all var(--forum-transition-normal);
  }
  
  .topic-card:hover .author-avatar {
    border-color: var(--forum-primary);
    transform: scale(1.05);
  }
  
  .author-info {
    flex: 1;
  }
  
  .author-name {
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
    font-size: 1rem;
  }
  
  .author-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--gray-500);
  }
  
  .post-time {
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
  
  .author-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .rating-stars {
    display: flex;
    gap: 0.125rem;
  }
  
  .rating-stars i {
    font-size: 0.875rem;
    color: var(--forum-secondary);
  }
  
  .rating-stars i:not(.bi-star-fill) {
    color: var(--gray-300);
  }
  
  .rating-text {
    font-weight: 600;
    color: var(--forum-secondary);
  }
  
  .topic-content {
    margin-bottom: 1.5rem;
  }
  
  .topic-title {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
  }
  
  .topic-title a {
    color: var(--gray-900);
    text-decoration: none;
    transition: color var(--forum-transition-fast);
  }
  
  .topic-title a:hover {
    color: var(--forum-primary);
  }
  
  .topic-product {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--forum-radius-lg);
    padding: 1rem;
    margin-bottom: 1rem;
  }
  
  .product-thumb {
    width: 48px;
    height: 48px;
    border-radius: var(--forum-radius-md);
    overflow: hidden;
    flex-shrink: 0;
  }
  
  .product-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .product-info {
    flex: 1;
  }
  
  .product-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 0.25rem;
  }
  
  .product-name {
    color: var(--forum-primary);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--forum-transition-fast);
  }
  
  .product-name:hover {
    color: var(--forum-primary-dark);
    text-decoration: underline;
  }
  
  .topic-excerpt {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
  }
  
  .topic-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(99, 102, 241, 0.1);
  }
  
  .topic-stats {
    display: flex;
    gap: 1.5rem;
  }
  
  .stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-500);
  }
  
  .stat-item i {
    color: var(--forum-primary);
  }
  
  .stat-item.helpful i {
    color: var(--forum-success);
  }
  
  .stat-item small {
    font-weight: 500;
  }
  
  .read-more-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--forum-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: var(--forum-radius-lg);
    transition: all var(--forum-transition-normal);
  }
  
  .read-more-btn:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--forum-primary-dark);
    transform: translateX(2px);
  }
  
  /* ==========================================================================
     Sidebar Widgets
     ========================================================================== */
  
  .sidebar-widget {
    background: white;
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--forum-radius-xl);
    box-shadow: var(--forum-shadow-sm);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: all var(--forum-transition-normal);
  }
  
  .sidebar-widget:hover {
    box-shadow: var(--forum-shadow-md);
    transform: translateY(-2px);
  }
  
  .widget-header {
    padding: 1.5rem;
    background: var(--forum-gradient-primary);
    color: white;
  }
  
  .widget-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .widget-subtitle {
    font-size: 0.875rem;
    opacity: 0.9;
    margin: 0.5rem 0 0 0;
  }
  
  .widget-content {
    padding: 1.5rem;
  }
  
  /* Stats Widget */
  .stats-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .stat-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--forum-radius-lg);
    transition: all var(--forum-transition-normal);
  }
  
  .stat-row:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateX(4px);
  }
  
  .stat-icon {
    width: 40px;
    height: 40px;
    background: var(--forum-gradient-primary);
    border-radius: var(--forum-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
  }
  
  .stat-info {
    flex: 1;
  }
  
  .stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-900);
    display: block;
    line-height: 1;
  }
  
  .stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
  }
  
  /* Trending Widget */
  .trending-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .trending-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--forum-radius-lg);
    transition: all var(--forum-transition-normal);
    border: 1px solid rgba(99, 102, 241, 0.1);
  }
  
  .trending-item:hover {
    background: rgba(99, 102, 241, 0.05);
    transform: translateY(-2px);
    box-shadow: var(--forum-shadow-sm);
  }
  
  .trending-badge {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--forum-secondary);
  }
  
  .trending-content {
    flex: 1;
  }
  
  .trending-content h6 {
    margin: 0 0 0.5rem 0;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.3;
  }
  
  .trending-content h6 a {
    color: var(--gray-900);
    text-decoration: none;
    transition: color var(--forum-transition-fast);
  }
  
  .trending-content h6 a:hover {
    color: var(--forum-primary);
  }
  
  .trending-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--gray-500);
  }
  
  .widget-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--forum-primary);
    text-decoration: none;
    font-weight: 600;
    padding: 0.75rem;
    margin-top: 1rem;
    border-radius: var(--forum-radius-lg);
    transition: all var(--forum-transition-normal);
  }
  
  .widget-link:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--forum-primary-dark);
  }
  
  /* Guidelines Widget */
  .guideline-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .guideline-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.4;
  }
  
  .guideline-item i {
    color: var(--forum-primary);
    font-size: 1rem;
    flex-shrink: 0;
  }
  
  /* ==========================================================================
     Pagination
     ========================================================================== */
  
  .forum-pagination {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  .pagination-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .pagination-info {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-align: center;
  }
  
  .pagination {
    display: flex;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }
  
  .page-item {
    margin: 0;
  }
  
  .page-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--forum-radius-lg);
    color: var(--forum-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--forum-transition-normal);
    background: white;
  }
  
  .page-link:hover {
    background: var(--forum-primary);
    color: white;
    border-color: var(--forum-primary);
    transform: translateY(-1px);
    box-shadow: var(--forum-shadow-sm);
  }
  
  .page-item.active .page-link {
    background: var(--forum-gradient-primary);
    color: white;
    border-color: var(--forum-primary);
    box-shadow: var(--forum-shadow-md);
  }
  
  .page-item.disabled .page-link {
    color: var(--gray-400);
    border-color: var(--gray-200);
    background: var(--gray-50);
    cursor: not-allowed;
  }
  
  .page-item.disabled .page-link:hover {
    color: var(--gray-400);
    background: var(--gray-50);
    transform: none;
    box-shadow: none;
  }
  
  /* ==========================================================================
     Empty State
     ========================================================================== */
  
  .empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border: 2px dashed rgba(99, 102, 241, 0.2);
    border-radius: var(--forum-radius-2xl);
    margin: 2rem 0;
  }
  
  .empty-illustration {
    font-size: 4rem;
    color: var(--forum-primary);
    margin-bottom: 1.5rem;
    opacity: 0.7;
  }
  
  .empty-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
  }
  
  .empty-text {
    color: var(--gray-600);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .btn-empty-action {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--forum-gradient-primary);
    color: white;
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: var(--forum-radius-full);
    font-weight: 700;
    font-size: 1.1rem;
    transition: all var(--forum-transition-normal);
    box-shadow: var(--forum-shadow-lg);
  }
  
  .btn-empty-action:hover {
    color: white;
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--forum-shadow-xl);
  }
  
  /* ==========================================================================
     Create Post Section
     ========================================================================== */
  
  .create-post-section {
    margin: 4rem 0;
    scroll-margin-top: 2rem;
  }
  
  .create-post-container {
    background: white;
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--forum-radius-2xl);
    box-shadow: var(--forum-shadow-lg);
    overflow: hidden;
  }
  
  .create-post-header {
    background: var(--forum-gradient-primary);
    color: white;
    padding: 2rem;
    text-align: center;
  }
  
  .header-content {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .section-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    line-height: 1.6;
    margin: 0;
  }
  
  .create-post-form {
    padding: 2rem;
  }
  
  .form-group {
    margin-bottom: 2rem;
  }
  
  .form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
    font-size: 1rem;
  }
  
  .required {
    color: var(--forum-danger);
    font-weight: 700;
  }
  
  .form-control {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--forum-radius-lg);
    font-size: 1rem;
    transition: all var(--forum-transition-normal);
    background: white;
    resize: vertical;
  }
  
  .form-control:focus {
    outline: none;
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  }
  
  .form-control.is-invalid {
    border-color: var(--forum-danger);
  }
  
  .invalid-feedback,
  .form-error {
    color: var(--forum-danger);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
  
  .form-help {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-500);
  }
  
  .help-text {
    flex: 1;
  }
  
  .char-count {
    font-weight: 500;
    color: var(--gray-400);
  }
  
  .captcha-group {
    text-align: center;
  }
  
  .captcha-container {
    display: inline-block;
    margin-top: 0.75rem;
  }
  
  .form-actions {
    text-align: center;
    margin-top: 2rem;
  }
  
  .btn-submit {
    position: relative;
    background: var(--forum-gradient-primary);
    color: white;
    border: none;
    border-radius: var(--forum-radius-full);
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--forum-transition-normal);
    box-shadow: var(--forum-shadow-lg);
    overflow: hidden;
  }
  
  .btn-submit:hover:not(:disabled) {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--forum-shadow-xl);
  }
  
  .btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
  }
  
  .btn-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
  }
  
  .btn-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: inherit;
  }
  
  .loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
  }
  
  /* ==========================================================================
     Post Guidelines
     ========================================================================== */
  
  .post-guidelines {
    padding: 2rem;
    background: rgba(99, 102, 241, 0.05);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
  }
  
  .guidelines-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
  }
  
  .guidelines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
  }
  
  .guideline-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--forum-radius-xl);
    text-align: center;
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all var(--forum-transition-normal);
  }
  
  .guideline-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--forum-shadow-md);
    border-color: var(--forum-primary);
  }
  
  .guideline-card i {
    font-size: 2rem;
    color: var(--forum-primary);
    margin-bottom: 1rem;
  }
  
  .guideline-card h6 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
  }
  
  .guideline-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
  }
  
  /* ==========================================================================
     Animations
     ========================================================================== */
  
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  @keyframes spin {
    to {
      transform: rotate(360deg);
    }
  }
  
  /* ==========================================================================
     Responsive Design
     ========================================================================== */
  
  @media (max-width: 1200px) {
    .forum-main {
      grid-template-columns: 1fr 280px;
      gap: 2rem;
    }
  }
  
  @media (max-width: 991.98px) {
    .forum-main {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
    
    .forum-sidebar {
      position: static;
      order: -1;
    }
    
    .hero-actions {
      flex-direction: column;
      align-items: center;
    }
    
    .btn-hero-primary,
    .btn-hero-secondary {
      width: 100%;
      max-width: 300px;
      justify-content: center;
    }
    
    .filter-tabs {
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .guidelines-grid {
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
  }
  
  @media (max-width: 767.98px) {
    .forum-hero {
      padding: 3rem 0 4rem;
      min-height: 50vh;
    }
    
    .hero-title {
      font-size: 2.5rem;
    }
    
    .hero-subtitle {
      font-size: 1.1rem;
    }
    
    .hero-stats {
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 1rem;
    }
    
    .stat-card {
      padding: 1rem;
    }
    
    .forum-controls {
      padding: 1.5rem;
      margin: -2rem 1rem 2rem;
    }
    
    .search-input-group {
      flex-direction: column;
      gap: 1rem;
    }
    
    .search-btn {
      margin-left: 0;
      width: 100%;
    }
    
    .filter-tabs {
      padding: 0.25rem;
    }
    
    .filter-tab {
      padding: 0.5rem 1rem;
      font-size: 0.875rem;
    }
    
    .topic-card {
      padding: 1.5rem;
    }
    
    .topic-footer {
      flex-direction: column;
      gap: 1rem;
      align-items: flex-start;
    }
    
    .topic-stats {
      width: 100%;
      justify-content: space-between;
    }
    
    .pagination {
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .page-link {
      padding: 0.5rem 0.75rem;
    }
    
    .create-post-header,
    .create-post-form {
      padding: 1.5rem;
    }
    
    .section-title {
      font-size: 1.5rem;
      flex-direction: column;
      gap: 0.5rem;
    }
    
    .guidelines-grid {
      grid-template-columns: 1fr;
    }
    
    .sidebar-widget {
      margin-bottom: 1.5rem;
    }
    
    .widget-header,
    .widget-content {
      padding: 1rem;
    }
  }
  
  @media (max-width: 575.98px) {
    .forum-container {
      padding: 0 0.75rem;
    }
    
    .breadcrumb-nav {
      padding: 0.75rem 0;
    }
    
    .breadcrumb-item a,
    .breadcrumb-item.active {
      padding: 0.25rem 0.5rem;
      font-size: 0.8rem;
    }
    
    .forum-controls {
      margin: -1.5rem 0.5rem 1.5rem;
      padding: 1rem;
    }
    
    .hero-title {
      font-size: 2rem;
    }
    
    .hero-subtitle {
      font-size: 1rem;
    }
    
    .topic-author {
      flex-direction: column;
      align-items: flex-start;
      gap: 0.75rem;
    }
    
    .author-avatar {
      width: 40px;
      height: 40px;
    }
    
    .topic-title {
      font-size: 1.25rem;
    }
    
    .topic-product {
      flex-direction: column;
      text-align: center;
    }
    
    .product-thumb {
      align-self: center;
    }
  }
  
  /* ==========================================================================
     Utility Classes
     ========================================================================== */
  
 
  
  .text-center {
    text-align: center !important;
  }
  
  .w-100 {
    width: 100% !important;
  }
  
  .mb-0 {
    margin-bottom: 0 !important;
  }
  
  .mt-2 {
    margin-top: 0.5rem !important;
  }
  
  .gap-2 {
    gap: 0.5rem !important;
  }
  
  /* ==========================================================================
     AOS Animation Overrides
     ========================================================================== */
  
  [data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  
  [data-aos="fade-up"].aos-animate,
  [data-aos="fade-up"].animate-in {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* ==========================================================================
     Print Styles
     ========================================================================== */
  
  @media print {
    .forum-hero,
    .forum-controls,
    .forum-sidebar,
    .create-post-section,
    .pagination {
      display: none !important;
    }
    
    .topic-card {
      break-inside: avoid;
      box-shadow: none;
      border: 1px solid #ddd;
    }
    
    .topic-card:hover {
      transform: none;
    }
  }

  /* 改进分页样式 - 添加到您的 forum.css 文件中 */
.forum-pagination {
  margin: 2rem 0;
  display: flex;
  justify-content: center;
}

.pagination-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  width: 100%;
}

.pagination-info {
  color: #6c757d;
  font-size: 0.9rem;
  text-align: center;
  font-weight: 500;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  justify-content: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-item .page-link {
  border: 1px solid #dee2e6;
  color: #6c757d;
  padding: 0.6rem 0.9rem;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
  min-width: 44px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  background: white;
}

.page-item .page-link:hover {
  background-color: #f8f9fa;
  border-color: #adb5bd;
  color: #495057;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.page-item.active .page-link {
  background: linear-gradient(135deg, #0d6efd, #0056b3);
  border-color: #0d6efd;
  color: white;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(13, 110, 253, 0.3);
}

.page-item.disabled .page-link {
  color: #adb5bd;
  background-color: #fff;
  border-color: #dee2e6;
  opacity: 0.65;
  cursor: not-allowed;
}

.page-ellipsis {
  padding: 0.6rem 0.5rem;
  color: #6c757d;
  font-weight: 500;
  display: flex;
  align-items: center;
}

.page-jump {
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #495057;
}

.page-jump input {
  width: 70px;
  border: 1px solid #ced4da;
  border-radius: 0.375rem;
  padding: 0.375rem 0.5rem;
  text-align: center;
  font-size: 0.9rem;
  background: white;
}

.page-jump input:focus {
  outline: none;
  border-color: #0d6efd;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.page-jump button {
  background: #0d6efd;
  color: white;
  border: none;
  border-radius: 0.375rem;
  padding: 0.375rem 0.75rem;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.page-jump button:hover {
  background: #0056b3;
  transform: translateY(-1px);
}

/* 移动端适配 */
@media (max-width: 768px) {
  .pagination-container {
      gap: 1rem;
  }
  
  .pagination {
      flex-wrap: wrap;
      gap: 0.2rem;
  }
  
  .page-item .page-link {
      padding: 0.5rem 0.6rem;
      min-width: 38px;
      font-size: 0.875rem;
  }
  
  .page-jump {
      order: -1;
      margin-bottom: 0.5rem;
      padding: 0.5rem 0.75rem;
      font-size: 0.85rem;
  }
  
  .page-jump input {
      width: 60px;
      padding: 0.25rem 0.375rem;
  }
  
  .page-jump button {
      padding: 0.25rem 0.5rem;
      font-size: 0.85rem;
  }
  
  /* 在小屏幕上隐藏 Previous/Next 文字，只保留图标 */
  .page-link .d-none.d-sm-inline {
      display: none !important;
  }
}

@media (max-width: 576px) {
  .pagination-info {
      font-size: 0.8rem;
  }
  
  .page-item .page-link {
      padding: 0.4rem 0.5rem;
      min-width: 36px;
      font-size: 0.8rem;
  }
}

/* 添加一些动画效果 */
.page-item .page-link {
  position: relative;
  overflow: hidden;
}

.page-item .page-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.5s;
}

.page-item .page-link:hover::before {
  left: 100%;
}

.page-item.active .page-link::before {
  display: none;
}