/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

/* 现代化标题栏 */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.logo-icon {
    width: 24px;
    height: 24px;
    color: white;
}

.title {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.image-count {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

/* 主要内容区域 */
.main {
    padding: 40px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.description {
    text-align: center;
    margin-bottom: 40px;
}

.description p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
}

/* 图片网格 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.image-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
}

.image-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.image-container {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
}

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

.image-card:hover .image-container img {
    transform: scale(1.1);
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.overlay-icon {
    width: 32px;
    height: 32px;
    color: white;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    padding: 8px;
    backdrop-filter: blur(10px);
}

.image-info {
    padding: 16px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.image-title {
    font-size: 12px;
    font-weight: 500;
    color: #475569;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 加载状态 */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: rgba(255, 255, 255, 0.9);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading p {
    font-size: 16px;
    font-weight: 500;
}

/* 模态框 */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 24px;
    max-width: 800px;
    max-height: 90vh;
    width: 100%;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    transition: all 0.2s ease;
    z-index: 10;
}

.modal-close:hover {
    background: white;
    transform: scale(1.1);
}

.modal-close svg {
    width: 24px;
    height: 24px;
    color: #666;
}

.modal-image-container {
    position: relative;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.modal-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 12px;
}

.modal-info {
    padding: 32px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.modal-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 24px;
}

.modal-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: #64748b;
}

.detail-icon {
    width: 16px;
    height: 16px;
    color: #667eea;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-container {
        height: 70px;
        padding: 0 16px;
    }
    
    .title {
        font-size: 24px;
    }
    
    .logo {
        width: 40px;
        height: 40px;
    }
    
    .logo-icon {
        width: 20px;
        height: 20px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 16px;
    }
    
    .modal-content {
        margin: 20px;
        border-radius: 16px;
    }
    
    .modal-info {
        padding: 24px;
    }
    
    .modal-title {
        font-size: 20px;
    }
    
    .modal-details {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 12px;
    }
    
    .header-left {
        gap: 12px;
    }
    
    .title {
        font-size: 20px;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}