.comments-section{margin-top:2rem;padding-top:2rem;border-top:1px solid var(--color-border)}.comments-header{margin-bottom:1.5rem}.comments-header h4{font-size:1.25rem;font-weight:600;color:var(--color-text);margin:0;display:flex;align-items:center;gap:0.5rem}.comment-count{color:var(--color-text-secondary);font-weight:400}.comment-form-section{margin-bottom:2rem;padding:1.5rem;background:var(--color-background);border-radius:12px;border:1px solid var(--color-border)}.comment-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.comment-form .form-group{margin-bottom:1rem}.comment-form .form-group label{display:block;font-weight:600;margin-bottom:0.5rem;color:var(--color-text);font-size:0.9rem}.comment-textarea{min-height:100px;resize:vertical;font-family:inherit;border:1px solid var(--color-border);border-radius:8px;padding:0.75rem;width:100%}.comment-textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(var(--color-primary-rgb),0.1)}.comment-form .form-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:1rem}.submit-btn{background:var(--color-primary);color:white;border:none;padding:0.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:0.5rem;transition:all 0.3s ease}.submit-btn:hover{background:var(--color-primary-dark);transform:translateY(-2px)}.cancel-btn{background:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border);padding:0.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all 0.3s ease}.cancel-btn:hover{background:var(--color-background);border-color:var(--color-text-secondary)}.comments-list{space-y:1.5rem}.comment-item{margin-bottom:1.5rem;padding:1.5rem;background:white;border-radius:12px;border:1px solid var(--color-border);transition:all 0.3s ease}.comment-item:hover{box-shadow:0 4px 12px rgba(0,0,0,0.08)}.comment-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem}.comment-author-info{display:flex;align-items:flex-start;gap:0.75rem}.comment-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover}.comment-avatar.placeholder{background:var(--color-background);border:2px solid var(--color-border);display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary)}.comment-author-details{display:flex;flex-direction:column;gap:0.25rem}.comment-author{font-weight:600;color:var(--color-text);font-size:0.95rem}.comment-date{color:var(--color-text-secondary);font-size:0.85rem}.reply-indicator{color:var(--color-primary);font-size:0.85rem;display:flex;align-items:center;gap:0.25rem}.comment-actions{display:flex;align-items:center;gap:0.5rem}.reply-btn{background:transparent;border:1px solid var(--color-border);color:var(--color-text-secondary);padding:0.5rem 0.75rem;border-radius:6px;font-size:0.85rem;cursor:pointer;display:flex;align-items:center;gap:0.25rem;transition:all 0.3s ease}.reply-btn:hover{background:var(--color-background);border-color:var(--color-primary);color:var(--color-primary)}.comment-content{color:var(--color-text);line-height:1.6;margin-bottom:1rem}.reply-form-section{margin-top:1rem;padding:1rem;background:var(--color-background);border-radius:8px;border:1px solid var(--color-border)}.reply-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.reply-form .form-group input,.reply-form .form-group textarea{border:1px solid var(--color-border);border-radius:6px;padding:0.5rem 0.75rem;width:100%;font-size:0.9rem}.reply-form .form-group input:focus,.reply-form .form-group textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 2px rgba(var(--color-primary-rgb),0.1)}.replies-section{margin-top:1rem;padding-left:2rem;border-left:2px solid var(--color-border)}.reply-item{margin-bottom:1rem;padding:1rem;background:var(--color-background);border-radius:8px;border:1px solid var(--color-border)}.reply-item:last-child{margin-bottom:0}.reply-item .comment-avatar{width:32px;height:32px}.no-comments{text-align:center;padding:3rem 1rem;color:var(--color-text-secondary)}.no-comments p{font-size:1.1rem;margin:0}.photo-slider{position:relative;width:100%;max-width:800px;margin:0 auto}.photo-slider .slider-container{position:relative;width:100%;height:600px;overflow:hidden;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,0.12)}.photo-slider .slides-wrapper{display:flex;width:100%;height:100%;transition:transform 0.3s ease}.photo-slider .slide{position:relative;flex:0 0 100%;width:100%;height:100%}.photo-slider .slide img{width:100%;height:100%;object-fit:cover}.slide-info{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,0.8));color:white;padding:2rem 1.5rem 1.5rem}.slide-info h3{font-size:1.25rem;font-weight:600;margin:0 0 0.5rem 0}.slide-info p{margin:0;opacity:0.9;font-size:0.95rem}.photo-slider .slider-navigation{position:absolute;top:50%;left:0;right:0;display:flex;justify-content:space-between;padding:0 1rem;pointer-events:none;z-index:10}.photo-slider .slider-btn{background:rgba(255,255,255,0.9);border:none;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.3s ease;pointer-events:all;box-shadow:0 2px 8px rgba(0,0,0,0.15)}.photo-slider .slider-btn:hover{background:white;transform:scale(1.1)}.photo-slider .slider-indicators{display:flex;justify-content:center;gap:0.5rem;padding:1rem;background:rgba(0,0,0,0.5);backdrop-filter:blur(10px);position:absolute;bottom:0;left:50%;transform:translateX(-50%);border-radius:20px}.photo-slider .indicator{width:60px;height:40px;border:2px solid transparent;border-radius:6px;overflow:hidden;cursor:pointer;transition:all 0.3s ease;background:transparent;padding:0}.photo-slider .indicator img{width:100%;height:100%;object-fit:cover;opacity:0.7;transition:opacity 0.3s ease}.photo-slider .indicator.active{border-color:white}.photo-slider .indicator.active img{opacity:1}.photo-counter{position:absolute;top:1rem;right:1rem;background:rgba(0,0,0,0.7);color:white;padding:0.5rem 1rem;border-radius:20px;font-size:0.9rem;font-weight:600}@media (max-width:768px){.comment-form .form-row{grid-template-columns:1fr}.reply-form .form-row{grid-template-columns:1fr}.comment-header{flex-direction:column;gap:1rem}.comment-actions{align-self:flex-start}.replies-section{padding-left:1rem}.photo-slider .slider-container{height:400px}.photo-slider .slider-indicators{gap:0.25rem;padding:0.75rem}.photo-slider .indicator{width:40px;height:30px}}.stats-section{padding:4rem 0;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;max-width:800px;margin:0 auto}.stat-item{text-align:center;padding:2rem;background:white;border-radius:15px;box-shadow:0 10px 30px rgba(0,0,0,0.1);transition:all 0.3s ease}.stat-item:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(0,0,0,0.15)}.stat-number{font-size:3rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:0.5rem}.stat-label{font-size:1.1rem;color:var(--color-text-muted);font-weight:500}.featured-section{padding:5rem 0;background:white}.featured-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;margin-top:3rem}.featured-photo{position:relative;border-radius:15px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,0.1);transition:all 0.3s ease}.featured-photo:hover{transform:translateY(-10px);box-shadow:0 25px 50px rgba(0,0,0,0.2)}.featured-photo .photo-wrapper{position:relative;padding-bottom:75%;overflow:hidden}.featured-photo img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease}.featured-photo:hover img{transform:scale(1.05)}.photo-card{position:relative;border-radius:15px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,0.1);transition:all 0.3s ease}.featured-photo:hover .photo-overlay{opacity:1}.photo-info{color:white;margin-bottom:1rem}.photo-title{font-size:1.2rem;font-weight:600;margin-bottom:0.5rem}.photo-category{background:rgba(255,255,255,0.2);padding:0.3rem 0.8rem;border-radius:20px;font-size:0.85rem;backdrop-filter:blur(10px)}.photo-actions{display:flex;gap:1rem}.photo-btn{background:white;color:var(--color-text-primary);padding:0.5rem 1rem;border-radius:25px;text-decoration:none;font-weight:500;display:flex;align-items:center;gap:0.5rem;transition:all 0.3s ease}.photo-btn:hover{background:#667eea;color:white;transform:translateY(-2px)}.categories-section{padding:5rem 0;background:var(--color-bg-secondary)}.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem;margin-top:3rem}.category-card{background:white;border-radius:15px;padding:2rem;box-shadow:0 5px 20px rgba(0,0,0,0.08);transition:all 0.3s ease;display:flex;flex-direction:column}.category-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px rgba(0,0,0,0.12)}.category-icon{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem}.category-icon i{color:white;font-size:1.5rem}.category-content{flex:1}.category-name{font-size:1.3rem;font-weight:600;color:var(--color-text-primary);margin-bottom:0.8rem}.category-description{color:var(--color-text-muted);line-height:1.6;margin-bottom:1.5rem}.category-stats{color:#999;font-size:0.9rem;margin-bottom:1.5rem}.category-actions{margin-top:auto}.category-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:white;padding:0.8rem 1.5rem;border-radius:25px;text-decoration:none;font-weight:500;display:inline-flex;align-items:center;gap:0.5rem;transition:all 0.3s ease}.category-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(102,126,234,0.3)}.albums-section{padding:5rem 0;background:white}.albums-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem;margin-top:3rem}.album-card{background:white;border-radius:15px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,0.08);transition:all 0.3s ease}.album-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px rgba(0,0,0,0.12)}.album-cover{position:relative;padding-bottom:60%;overflow:hidden}.album-cover img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease}.album-card:hover .album-cover img{transform:scale(1.05)}.album-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center}.album-placeholder i{color:white;font-size:3rem;opacity:0.7}.album-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to bottom,transparent,rgba(0,0,0,0.7));display:flex;flex-direction:column;justify-content:space-between;padding:1.5rem;opacity:0;transition:opacity 0.3s ease}.album-card:hover .album-overlay{opacity:1}.album-info{color:white}.album-title{font-size:1.2rem;font-weight:600;margin-bottom:0.5rem}.album-meta{font-size:0.9rem;opacity:0.9}.album-btn{background:white;color:var(--color-text-primary);padding:0.5rem 1rem;border-radius:25px;text-decoration:none;font-weight:500;display:inline-flex;align-items:center;gap:0.5rem;align-self:flex-start;transition:all 0.3s ease}.album-btn:hover{background:#667eea;color:white}.album-content{padding:1.5rem}.album-name{font-size:1.1rem;font-weight:600;color:var(--color-text-primary);margin-bottom:0.5rem}.album-description{color:var(--color-text-muted);font-size:0.9rem;line-height:1.6;margin-bottom:1rem}.album-stats{display:flex;gap:1rem;font-size:0.85rem;color:#999}.album-stats span{display:flex;align-items:center;gap:0.3rem}.recent-section{padding:5rem 0;background:var(--color-bg-secondary)}.recent-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-top:3rem}.recent-photo{position:relative;border-radius:10px;overflow:hidden;box-shadow:0 3px 15px rgba(0,0,0,0.1);transition:all 0.3s ease}.recent-photo:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,0,0,0.15)}.recent-photo .photo-wrapper{position:relative;padding-bottom:75%;overflow:hidden}.recent-photo img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease}.recent-photo:hover img{transform:scale(1.05)}.recent-photo .photo-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to bottom,transparent,rgba(0,0,0,0.6));display:flex;flex-direction:column;justify-content:space-between;padding:1rem;opacity:0;transition:opacity 0.3s ease}.recent-photo:hover .photo-overlay{opacity:1}.recent-photo .photo-info{color:white}.recent-photo .photo-title{font-size:1rem;font-weight:600;margin-bottom:0.3rem}.photo-date{font-size:0.85rem;opacity:0.9}.recent-photo .photo-actions{display:flex;justify-content:space-between;align-items:flex-end}.recent-photo .photo-btn{background:rgba(255,255,255,0.2);color:white;padding:0.5rem;border-radius:50%;text-decoration:none;backdrop-filter:blur(10px);transition:all 0.3s ease}.recent-photo .photo-btn:hover{background:white;color:var(--color-text-primary)}.featured-badge{background:#ffd700;color:var(--color-text-primary);padding:0.3rem;border-radius:50%;font-size:0.8rem}.actions-section{padding:5rem 0;background:white}.quick-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:3rem}.action-card{background:white;border:2px solid #e9ecef;border-radius:15px;padding:2rem;text-decoration:none;color:inherit;transition:all 0.3s ease;display:flex;align-items:center;gap:1.5rem}.action-card:hover{border-color:#667eea;transform:translateY(-3px);box-shadow:0 10px 30px rgba(102,126,234,0.1)}.action-icon{width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:white}.upload-card .action-icon{background:linear-gradient(135deg,#4facfe,#00f2fe)}.album-card .action-icon{background:linear-gradient(135deg,#43e97b,#38f9d7)}.browse-card .action-icon{background:linear-gradient(135deg,#fa709a,#fee140)}.action-content h3{font-size:1.2rem;font-weight:600;color:var(--color-text-primary);margin-bottom:0.5rem}.action-content p{color:var(--color-text-muted);font-size:0.9rem;line-height:1.5}.empty-state{text-align:center;padding:6rem 2rem;color:var(--color-gray-600);background:white;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--color-gray-200);max-width:600px;margin:4rem auto}.empty-icon{font-size:5rem;color:var(--color-primary);opacity:0.2;margin-bottom:2rem;animation:float 6s ease-in-out infinite}.empty-state h3{font-size:1.75rem;font-weight:700;color:var(--color-gray-800);margin-bottom:1rem}.empty-state p{font-size:1.1rem;margin-bottom:2.5rem;line-height:1.6;color:var(--color-gray-600)}@keyframes float{0%{transform:translateY(0px)}50%{transform:translateY(-10px)}100%{transform:translateY(0px)}}.section{position:relative}.section-header{text-align:center;margin-bottom:2rem;position:relative}.section-title{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.section-subtitle{font-size:1.2rem;color:var(--color-text-muted);max-width:600px;margin:0 auto 2rem;line-height:1.6}.section-actions{position:absolute;right:0;top:50%;transform:translateY(-50%)}.view-all-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:white;padding:0.8rem 1.5rem;border-radius:25px;text-decoration:none;font-weight:500;display:inline-flex;align-items:center;gap:0.5rem;transition:all 0.3s ease}.view-all-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(102,126,234,0.3)}@media (max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr);gap:1rem}.stat-item{padding:1.5rem 1rem}.stat-number{font-size:2rem}.featured-grid,.categories-grid,.albums-grid{grid-template-columns:1fr;gap:1.5rem}.recent-grid{grid-template-columns:repeat(2,1fr);gap:1rem}.quick-actions{grid-template-columns:1fr;gap:1rem}.action-card{padding:1.5rem;flex-direction:column;text-align:center}.section-header{position:relative}.section-actions{position:static;transform:none;margin-top:1rem}.section-title{font-size:2rem}.section-subtitle{font-size:1rem}}@media (max-width:480px){.recent-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1rem}}.breadcrumb-section{padding:var(--space-4) 0;border-bottom:1px solid var(--color-gray-200)}.breadcrumb{display:flex;align-items:center;gap:var(--space-2);font-size:0.9rem;color:var(--color-gray-600)}.breadcrumb a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-ease)}.breadcrumb a:hover{color:var(--color-primary-dark)}.photo-detail-section{padding:var(--space-8) 0}.photo-detail-grid{display:grid;grid-template-columns:2fr 1fr;gap:var(--space-8);max-width:1400px;margin:0 auto}.photo-main{position:relative}.photo-wrapper{position:relative;background:white;border-radius:var(--border-radius-lg);overflow:hidden;border:1px solid var(--color-gray-200)}.main-photo{width:100%;height:auto;display:block;max-height:80vh;object-fit:contain}.nav-arrow{position:absolute;top:50%;transform:translateY(-50%);width:50px;height:50px;background:rgba(0,0,0,0.7);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:1.25rem;transition:all var(--transition-ease);z-index:10}.nav-arrow:hover{background:rgba(0,0,0,0.9);color:white;transform:translateY(-50%) scale(1.1)}.nav-prev{left:var(--space-4)}.nav-next{right:var(--space-4)}.photo-actions{display:flex;gap:var(--space-3);margin-top:var(--space-4);justify-content:center}.action-btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--color-gray-100);border:1px solid var(--color-gray-300);border-radius:var(--border-radius-md);color:var(--color-gray-700);text-decoration:none;font-weight:500;transition:all var(--transition-ease);cursor:pointer}.action-btn:hover{background:var(--color-primary);border-color:var(--color-primary);color:white;transform:translateY(-2px)}.photo-info{background:white;border:1px solid var(--color-gray-200);border-radius:var(--border-radius-lg);padding:var(--space-6);height:fit-content;position:sticky;top:var(--space-4)}.photo-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:var(--space-4);flex-wrap:wrap;gap:var(--space-2)}.photo-title{font-size:1.75rem;font-weight:700;color:var(--color-gray-900);margin:0;line-height:1.3}.featured-badge{display:inline-flex;align-items:center;gap:var(--space-1);background:linear-gradient(135deg,var(--color-accent),var(--color-accent-light));color:white;padding:var(--space-1) var(--space-3);border-radius:var(--border-radius-full);font-size:0.75rem;font-weight:600;text-transform:uppercase;letter-spacing:0}.photo-description{color:var(--color-gray-700);line-height:1.6;margin-bottom:var(--space-6);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-gray-200)}.photo-metadata{margin-bottom:var(--space-6)}.meta-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-2) 0;border-bottom:1px solid var(--color-gray-100)}.meta-item:last-child{border-bottom:none}.meta-label{font-weight:600;color:var(--color-gray-600);font-size:0.9rem}.meta-value{color:var(--color-gray-800);font-weight:500;text-align:right}.category-link{color:var(--color-primary);text-decoration:none;transition:color var(--transition-ease)}.category-link:hover{color:var(--color-primary-dark)}.photo-tags{margin-bottom:var(--space-6);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-gray-200)}.tags-label{display:block;font-weight:600;color:var(--color-gray-600);font-size:0.9rem;margin-bottom:var(--space-3)}.tags-list{display:flex;flex-wrap:wrap;gap:var(--space-2)}.tag{background:var(--color-gray-100);color:var(--color-gray-700);padding:var(--space-1) var(--space-3);border-radius:var(--border-radius-full);font-size:0.8rem;font-weight:500}.admin-actions{background:var(--color-bg-secondary);padding:var(--space-4);border-radius:var(--border-radius-md);border:1px solid var(--color-gray-200)}.admin-actions h4{font-size:1rem;font-weight:600;color:var(--color-gray-700);margin-bottom:var(--space-3)}.admin-buttons{display:flex;flex-direction:column;gap:var(--space-2)}.admin-btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border:1px solid transparent;border-radius:var(--border-radius-sm);font-size:0.875rem;font-weight:500;text-decoration:none;cursor:pointer;transition:all var(--transition-ease)}.edit-btn{background:var(--color-info);color:white}.edit-btn:hover{background:var(--color-info-dark);color:white}.delete-btn{background:var(--color-error);color:white}.delete-btn:hover{background:#c53030;color:white}.feature-btn{background:var(--color-accent);color:white}.feature-btn:hover{background:var(--color-accent-dark);color:white}.related-photos-section{padding:var(--space-12) 0;background:var(--color-bg-secondary)}.related-photos-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-4);margin-top:var(--space-6)}.related-photo-item{position:relative;border-radius:var(--border-radius-lg);overflow:hidden;transition:transform var(--transition-ease)}.related-photo-item:hover{transform:translateY(-4px)}.related-photo-item .photo-wrapper{position:relative;padding-bottom:75%;overflow:hidden}.related-photo-item img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform var(--transition-ease)}.related-photo-item:hover img{transform:scale(1.05)}.related-photo-item .photo-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,0.8));color:white;padding:var(--space-4)}.related-photo-item .photo-info h4{font-size:1rem;font-weight:600;margin-bottom:var(--space-1)}.related-photo-item .photo-date{font-size:0.875rem;opacity:0.9}.photo-link{text-decoration:none;color:inherit}.back-section{padding:var(--space-8) 0;background:white}.back-link-wrapper{text-align:center}.back-link{display:inline-flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-6);background:var(--color-gray-100);border:2px solid var(--color-gray-200);border-radius:var(--border-radius-lg);color:var(--color-gray-700);text-decoration:none;font-weight:600;transition:all var(--transition-ease)}.back-link:hover{background:var(--color-primary);border-color:var(--color-primary);color:white;transform:translateY(-2px)}@media (max-width:1024px){.photo-detail-grid{grid-template-columns:1fr;gap:var(--space-6)}.photo-info{position:static}.related-photos-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--space-3)}}@media (max-width:768px){.photo-detail-section{padding:var(--space-4) 0}.photo-detail-grid{gap:var(--space-4)}.photo-info{padding:var(--space-4)}.photo-title{font-size:1.5rem}.photo-actions{flex-direction:column}.nav-arrow{width:40px;height:40px;font-size:1rem}.nav-prev{left:var(--space-2)}.nav-next{right:var(--space-2)}.meta-item{flex-direction:column;align-items:flex-start;gap:var(--space-1)}.meta-value{text-align:left}}@media (max-width:480px){.breadcrumb{font-size:0.8rem;flex-wrap:wrap}.photo-header{flex-direction:column;align-items:flex-start}.related-photos-grid{grid-template-columns:repeat(2,1fr)}}.grouped-photos-section{padding:3rem 0;background:var(--color-bg-secondary)}.grouped-photos-section .section-title{margin-bottom:2rem;color:var(--color-text-primary);font-weight:600}.grouped-photos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;max-width:1200px;margin:0 auto}.grouped-photo-item{position:relative;border-radius:12px;overflow:hidden;transition:all 0.3s ease}.grouped-photo-item:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,0,0,0.15)}.grouped-photo-item.current{border:3px solid #667eea;box-shadow:0 0 0 3px #667eea,0 10px 30px rgba(102,126,234,0.3)}.grouped-photo-item .photo-wrapper{position:relative;width:100%;height:200px;overflow:hidden}.grouped-photo-item .photo-wrapper img{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease}.grouped-photo-item:hover .photo-wrapper img{transform:scale(1.05)}.current-indicator{position:absolute;top:10px;right:10px;background:#667eea;color:white;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0.8rem;z-index:10}.grouped-photo-item .photo-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,0.7));color:white;padding:1rem;transform:translateY(100%);transition:transform 0.3s ease}.grouped-photo-item:hover .photo-overlay{transform:translateY(0)}.grouped-photo-item .photo-info h4{font-size:0.9rem;font-weight:600;margin-bottom:0.3rem;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.grouped-photo-item .photo-date{font-size:0.8rem;opacity:0.9}@media (max-width:768px){.grouped-photos-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:0.8rem}.grouped-photo-item .photo-wrapper{height:150px}}@media (max-width:480px){.grouped-photos-grid{grid-template-columns:repeat(2,1fr);gap:0.5rem}.grouped-photo-item .photo-wrapper{height:120px}}.research-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(420px,1fr));gap:var(--space-6);margin-top:var(--space-6)}.research-list{display:flex;flex-direction:column;gap:var(--space-4);margin-top:var(--space-6)}.research-card{background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--border-radius-xl);overflow:hidden;transition:all var(--transition-ease);box-shadow:var(--shadow-card)}.research-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--color-primary-light)}.research-card .card-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--color-border-light)}.research-card .author-info{display:flex;align-items:center;gap:var(--space-3)}.research-card .author-avatar{width:40px;height:40px;border-radius:var(--border-radius-full);object-fit:cover;border:2px solid var(--color-border-light)}.research-card .author-avatar.placeholder{background:linear-gradient(135deg,var(--color-primary-light),var(--color-accent-light));display:flex;align-items:center;justify-content:center;color:white;font-size:0.875rem}.research-card .author-details h4{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-1) 0;line-height:1.2}.research-card .affiliation{font-size:var(--font-size-sm);color:var(--color-text-muted);font-weight:var(--font-weight-normal)}.research-card .post-date{font-size:var(--font-size-sm);color:var(--color-text-muted);font-weight:var(--font-weight-medium)}.research-card .image-slider{position:relative;background:var(--color-bg-secondary);overflow:hidden}.research-card .slider-container{position:relative;width:100%;overflow:hidden}.research-card .slides-wrapper{display:flex;transition:transform 0.3s ease;width:100%}.research-card .slide{position:relative;width:100%;flex-shrink:0;padding-bottom:56.25%;overflow:hidden}.research-card .slide img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform var(--transition-ease)}.research-card:hover .slide img{transform:scale(1.02)}.research-card .slider-navigation{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-3);pointer-events:none}.research-card .slider-btn{width:36px;height:36px;background:rgba(0,0,0,0.6);border:none;border-radius:var(--border-radius-full);color:white;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);pointer-events:all;opacity:0;transform:scale(0.9)}.research-card:hover .slider-btn{opacity:1;transform:scale(1)}.research-card .slider-btn:hover{background:rgba(0,0,0,0.8);transform:scale(1.1)}.research-card .slider-btn i{font-size:0.875rem}.research-card .slider-indicators{position:absolute;bottom:var(--space-3);left:50%;transform:translateX(-50%);display:flex;gap:var(--space-2);z-index:10}.research-card .indicator{width:8px;height:8px;border:none;border-radius:var(--border-radius-full);background:rgba(255,255,255,0.5);cursor:pointer;transition:all var(--transition-fast)}.research-card .indicator.active{background:white;transform:scale(1.2)}.research-card .indicator:hover{background:rgba(255,255,255,0.8)}.research-card .no-image-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,var(--color-gray-100),var(--color-gray-200));display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--color-text-muted);gap:var(--space-2)}.research-card .no-image-placeholder i{font-size:2.5rem;opacity:0.5}.research-card .no-image-placeholder span{font-size:var(--font-size-md);font-weight:var(--font-weight-medium);opacity:0.7}.research-card .slide-caption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,0.7));color:white;padding:var(--space-4) var(--space-4) var(--space-3);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);opacity:0;transition:opacity var(--transition-ease)}.research-card:hover .slide-caption{opacity:1}.research-card .featured-badge{position:absolute;top:var(--space-3);right:var(--space-3);background:linear-gradient(135deg,#ffd700,#ffed4a);color:#8b5a00;padding:var(--space-1) var(--space-2);border-radius:var(--border-radius-full);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);box-shadow:0 2px 8px rgba(255,215,0,0.3);z-index:5}.research-card .photo-count-badge{position:absolute;top:var(--space-3);left:var(--space-3);background:rgba(0,0,0,0.7);color:white;padding:var(--space-1) var(--space-2);border-radius:var(--border-radius-lg);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);display:flex;align-items:center;gap:var(--space-1);backdrop-filter:blur(10px);z-index:5}.research-card .photo-count-badge i{font-size:var(--font-size-xs)}.research-card .card-content{padding:var(--space-5)}.research-card .content-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-3) 0;line-height:var(--line-height-tight)}.research-card .content-description{font-size:var(--font-size-md);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);margin-bottom:var(--space-4)}.research-card .content-tags{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-5)}.research-card .content-tags .tag{background:var(--color-tag-bg);color:var(--color-tag-text);padding:var(--space-1) var(--space-2);border-radius:var(--border-radius-full);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);transition:all var(--transition-fast)}.research-card .content-tags .tag:hover{background:var(--color-primary-light);color:var(--color-primary-dark);transform:translateY(-1px)}.research-card .card-actions{display:flex;justify-content:space-between;align-items:center;padding-top:var(--space-4);border-top:1px solid var(--color-border-light)}.research-card .action-group{display:flex;gap:var(--space-3);align-items:center}.research-card .action-btn{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-2) var(--space-3);border:none;background:transparent;color:var(--color-text-muted);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--border-radius-md);cursor:pointer;transition:all var(--transition-fast);text-decoration:none}.research-card .action-btn:hover{background:var(--color-bg-secondary);color:var(--color-text-primary);transform:translateY(-1px)}.research-card .action-btn.liked{color:#dc3545}.research-card .action-btn.active{background:var(--color-primary-light);color:var(--color-primary-dark)}.research-card .action-btn .count{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);min-width:16px;text-align:center}.research-card .comments-section{border-top:1px solid var(--color-border-light);background:var(--color-bg-tertiary)}.research-card .comment-preview{padding:var(--space-4) var(--space-5);max-height:200px;overflow-y:auto}.research-card .comment-item{display:flex;gap:var(--space-3);margin-bottom:var(--space-3)}.research-card .comment-item:last-child{margin-bottom:0}.research-card .comment-avatar{width:32px;height:32px;border-radius:var(--border-radius-full);flex-shrink:0}.research-card .comment-avatar.placeholder{background:var(--color-gray-300);display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);font-size:0.75rem}.research-card .comment-content{flex:1;min-width:0}.research-card .comment-author{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-1)}.research-card .comment-text{font-size:var(--font-size-md);color:var(--color-text-secondary);line-height:var(--line-height-normal);margin-bottom:var(--space-1);word-wrap:break-word}.research-card .comment-time{font-size:var(--font-size-sm);color:var(--color-text-muted)}.research-card .comment-input{padding:var(--space-4) var(--space-5);border-top:1px solid var(--color-border-light);display:flex;gap:var(--space-3)}.research-card .comment-field{flex:1;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border-medium);border-radius:var(--border-radius-lg);font-size:var(--font-size-md);background:var(--color-bg);transition:border-color var(--transition-fast)}.research-card .comment-field:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(var(--color-primary-rgb),0.1)}.research-card .comment-submit{padding:var(--space-2) var(--space-4);background:var(--color-primary);color:white;border:none;border-radius:var(--border-radius-lg);font-size:var(--font-size-md);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.research-card .comment-submit:hover{background:var(--color-primary-dark);transform:translateY(-1px)}@media (max-width:1024px){.research-grid{grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:var(--space-5)}}@media (max-width:768px){.research-grid{grid-template-columns:1fr;gap:var(--space-4)}.research-card .card-header{padding:var(--space-3) var(--space-4)}.research-card .card-content{padding:var(--space-4)}.research-card .comment-preview,.research-card .comment-input{padding:var(--space-3) var(--space-4)}.research-card .card-actions{flex-direction:column;gap:var(--space-3);align-items:stretch}.research-card .action-group{justify-content:center}.research-card .content-title{font-size:var(--font-size-lg)}}@media (max-width:480px){.research-card .author-info{gap:var(--space-2)}.research-card .author-avatar{width:32px;height:32px}.research-card .card-header{flex-direction:column;align-items:flex-start;gap:var(--space-2)}.research-card .content-tags{gap:var(--space-1)}.research-card .comment-input{flex-direction:column;gap:var(--space-2)}}.research-card .comments-section{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--color-border,#e5e7eb);background:var(--color-background-light,#f9fafb);border-radius:0 0 12px 12px;margin:0 -1.5rem -1.5rem;padding:1rem 1.5rem 1.5rem}.research-card .comment-preview{max-height:300px;overflow-y:auto;margin-bottom:1rem}.research-card .comment-item{display:flex;gap:0.75rem;padding:0.75rem;background:white;border-radius:8px;margin-bottom:0.5rem;transition:background-color 0.2s}.research-card .comment-item:hover{background:var(--color-background,#f9fafb)}.research-card .comment-item:last-child{margin-bottom:0}.research-card .comment-avatar{width:32px;height:32px;border-radius:50%;overflow:hidden;flex-shrink:0;display:flex;align-items:center;justify-content:center}.research-card .comment-avatar img{width:100%;height:100%;object-fit:cover}.research-card .comment-avatar.placeholder{background:var(--color-primary-light,#dbeafe);color:var(--color-primary,#3b82f6)}.research-card .comment-avatar i{font-size:0.875rem}.research-card .comment-content{flex:1;min-width:0}.research-card .comment-author{font-size:0.875rem;font-weight:600;color:var(--color-text,#1f2937);margin-bottom:0.25rem}.research-card .comment-text{font-size:0.875rem;color:var(--color-text-secondary,#6b7280);line-height:1.5;margin-bottom:0.25rem;word-wrap:break-word}.research-card .comment-time{font-size:0.75rem;color:var(--color-text-tertiary,#9ca3af)}.research-card .comment-more{text-align:center;padding:0.5rem}.research-card .more-link{font-size:0.875rem;color:var(--color-primary,#3b82f6);text-decoration:none;font-weight:500;transition:color 0.2s}.research-card .more-link:hover{color:var(--color-primary-dark,#2563eb);text-decoration:underline}.research-card .no-comments{text-align:center;padding:1.5rem;color:var(--color-text-secondary,#6b7280)}.research-card .no-comments p{margin:0;font-size:0.875rem}.research-card .comment-input-section{display:flex;gap:0.5rem;align-items:center}.research-card .comment-input{flex:1;padding:0.625rem 1rem;border:1px solid var(--color-border,#e5e7eb);border-radius:20px;font-size:0.875rem;background:white;transition:border-color 0.2s,box-shadow 0.2s}.research-card .comment-input:focus{outline:none;border-color:var(--color-primary,#3b82f6);box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.research-card .comment-input:disabled{background:var(--color-background,#f3f4f6);cursor:not-allowed}.research-card .comment-submit-btn{width:36px;height:36px;border-radius:50%;border:none;background:var(--color-primary,#3b82f6);color:white;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s;flex-shrink:0}.research-card .comment-submit-btn:hover:not(:disabled){background:var(--color-primary-dark,#2563eb);transform:scale(1.05)}.research-card .comment-submit-btn:disabled{background:var(--color-text-tertiary,#9ca3af);cursor:not-allowed;opacity:0.5}.research-card .comment-submit-btn i{font-size:0.875rem}.research-card .login-notice{text-align:center;margin-top:0.75rem;font-size:0.75rem;color:var(--color-text-secondary,#6b7280)}.research-card .login-notice a{color:var(--color-primary,#3b82f6);text-decoration:none;font-weight:500}.research-card .login-notice a:hover{text-decoration:underline}.submit-btn:hover,.photo-slider .slider-btn:hover,.stat-item:hover,.featured-photo:hover,.photo-btn:hover,.category-card:hover,.category-btn:hover,.album-card:hover,.album-btn:hover,.recent-photo:hover,.recent-photo .photo-btn:hover,.action-card:hover,.view-all-btn:hover,.nav-arrow:hover,.action-btn:hover,.related-photo-item:hover,.back-link:hover,.grouped-photo-item:hover,.research-card:hover,.research-card .slider-btn:hover,.research-card .content-tags .tag:hover,.research-card .action-btn:hover,.research-card .comment-submit:hover,.research-card .comment-submit-btn:hover:not(:disabled){transform:none}.featured-photo:hover img,.album-card:hover .album-cover img,.recent-photo:hover img,.related-photo-item:hover img,.grouped-photo-item:hover .photo-wrapper img,.research-card:hover .slide img{transform:none}.floating-photo{animation:none}@media (max-width:768px){.research-card .comments-section{margin:0 -1rem -1rem;padding:1rem}.research-card .comment-item{gap:0.5rem;padding:0.625rem}.research-card .comment-avatar{width:28px;height:28px}.research-card .comment-author{font-size:0.8125rem}.research-card .comment-text{font-size:0.8125rem}.research-card .comment-input{padding:0.5rem 0.875rem;font-size:0.8125rem}.research-card .comment-submit-btn{width:32px;height:32px}}.filter-section{background:white;border:1px solid var(--color-gray-200);border-radius:var(--border-radius-lg);padding:var(--space-6);margin-bottom:var(--space-8);box-shadow:0 2px 4px rgba(0,0,0,0.05)}.filter-row{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);margin-bottom:var(--space-4)}.search-box{flex:1;max-width:500px}.search-form{display:flex;gap:var(--space-2)}.search-input-group{display:flex;flex:1;position:relative}.search-input{flex:1;padding:var(--space-3) var(--space-4);border:2px solid var(--color-gray-200);border-radius:var(--border-radius-md) 0 0 var(--border-radius-md);font-size:1rem;transition:all var(--transition-ease)}.search-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(242,170,60,0.1)}.search-btn{padding:var(--space-3) var(--space-4);background:var(--color-primary);color:white;border:2px solid var(--color-primary);border-radius:0 var(--border-radius-md) var(--border-radius-md) 0;cursor:pointer;transition:all var(--transition-ease);border-left:none}.search-btn:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark)}.filter-controls{display:flex;align-items:center;gap:var(--space-4)}.sort-control{display:flex;align-items:center;gap:var(--space-2)}.sort-control label{font-weight:600;color:var(--color-gray-700);font-size:0.9rem}.sort-control select{padding:var(--space-2) var(--space-3);border:2px solid var(--color-gray-200);border-radius:var(--border-radius-md);font-size:0.9rem;background:white;cursor:pointer;transition:all var(--transition-ease)}.sort-control select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(242,170,60,0.1)}.view-control{display:flex;border:2px solid var(--color-gray-200);border-radius:var(--border-radius-md);overflow:hidden}.view-btn{padding:var(--space-2) var(--space-3);background:white;border:none;cursor:pointer;transition:all var(--transition-ease);color:var(--color-gray-600)}.view-btn:hover,.view-btn.active{background:var(--color-primary);color:white}.view-btn + .view-btn{border-left:1px solid var(--color-gray-200)}.category-filter{padding-top:var(--space-4);border-top:1px solid var(--color-gray-200)}.category-tabs{display:flex;flex-wrap:wrap;gap:var(--space-2)}.category-tab{padding:var(--space-2) var(--space-4);background:var(--color-gray-100);color:var(--color-gray-700);text-decoration:none;border-radius:var(--border-radius-md);font-size:0.9rem;font-weight:500;transition:all var(--transition-ease);white-space:nowrap}.category-tab:hover{background:var(--color-gray-200)}.category-tab.active{background:var(--color-primary);color:white}.results-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-6);padding:var(--space-4);background:var(--color-bg-secondary);border-radius:var(--border-radius-md);border:1px solid var(--color-gray-200)}.results-count{font-size:0.95rem;color:var(--color-gray-700);font-weight:500}.results-filters{display:flex;gap:var(--space-2);flex-wrap:wrap}.filter-tag{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-3);background:var(--color-primary);color:white;border-radius:var(--border-radius-md);font-size:0.85rem;font-weight:500}.remove-filter{color:white;text-decoration:none;padding:var(--space-1);border-radius:50%;transition:background var(--transition-ease)}.remove-filter:hover{background:rgba(255,255,255,0.2)}@media (max-width:768px){.filter-row{flex-direction:column;align-items:stretch;gap:var(--space-3)}.search-box{max-width:none}.filter-controls{justify-content:space-between;flex-wrap:wrap;gap:var(--space-3)}.category-tabs{justify-content:center}.results-info{flex-direction:column;gap:var(--space-3);align-items:flex-start}}@media (max-width:480px){.filter-section{padding:var(--space-4)}.filter-controls{flex-direction:column;align-items:stretch}.sort-control{justify-content:space-between}.view-control{align-self:center}.category-tabs{flex-direction:column;gap:var(--space-1)}.category-tab{text-align:center}}