/* style.css - 优化样式文件 */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --success-color: #4cc9f0;
    --danger-color: #f72585;
    --warning-color: #fca311;
    --dark-color: #14213d;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --light-gray: #e9ecef;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e7ec 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* 头部样式 */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
    overflow: hidden;
}

.header-content {
    padding: 25px 30px;
    position: relative;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    margin-bottom: 15px;
}

.header-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 15px;
    border-radius: 20px;
    width: fit-content;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--gray-color);
}

.status-indicator.connected {
    background-color: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 25px;
    margin-bottom: 30px;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--box-shadow-hover);
}

/* 主内容区域 */
.main-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
}

/* 上传区域 */
.upload-section h2 {
    color: var(--dark-color);
    margin-bottom: 20px;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

#uploadForm {
    display: flex;
    flex-direction: column;
}

.upload-area {
    border: 2px dashed var(--light-gray);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    margin-bottom: 20px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.05);
}

.upload-area i {
    font-size: 3.5rem;
    color: var(--gray-color);
    margin-bottom: 15px;
    transition: var(--transition);
}

.upload-area:hover i {
    color: var(--primary-color);
}

.upload-area p {
    color: var(--dark-color);
    font-weight: 500;
    margin-bottom: 5px;
}

.upload-hint {
    color: var(--gray-color);
    font-size: 0.9rem;
}

#fileInput {
    display: none;
}

.upload-progress {
    margin-bottom: 20px;
    display: none;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background-color: var(--light-gray);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--success-color) 100%);
    border-radius: 5px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    text-align: center;
    display: block;
    color: var(--dark-color);
    font-size: 0.9rem;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    text-decoration: none;
    font-size: 0.95rem;
}

.btn i {
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #3651d4;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.btn-secondary {
    background-color: var(--light-gray);
    color: var(--dark-color);
}

.btn-secondary:hover {
    background-color: #dde1e7;
    transform: translateY(-2px);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #3ab7d9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 201, 240, 0.3);
}

.btn-upload {
    background-color: var(--primary-color);
    color: white;
    padding: 15px;
    font-size: 1.1rem;
}

.btn-upload:hover {
    background-color: #3651d4;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #e31272;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(247, 37, 133, 0.3);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* 素材区域 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.section-header h2 {
    color: var(--dark-color);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 15px;
    color: var(--gray-color);
}

.search-box input {
    padding: 10px 15px 10px 40px;
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    width: 250px;
    font-size: 0.9rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.material-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    position: relative;
}

.material-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.material-card.selected {
    outline: 3px solid var(--primary-color);
}

.material-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    cursor: pointer;
    transition: var(--transition);
}

.material-image:hover {
    opacity: 0.9;
}

.material-info {
    padding: 15px;
}

.material-title {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.material-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray-color);
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.material-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.checkbox-container {
    display: flex;
    align-items: center;
}

.checkbox-container input {
    margin-right: 8px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-container label {
    cursor: pointer;
    font-size: 0.9rem;
}

.loading-state, .empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-color);
}

.loading-state i {
    font-size: 2rem;
    margin-bottom: 15px;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 20px 0 10px;
}

#pageInfo {
    font-weight: 600;
    color: var(--dark-color);
}

/* 页脚样式 */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-top: 30px;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    overflow: auto;
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background-color: white;
    margin: 5% auto;
    width: 90%;
    max-width: 900px;
    border-radius: var(--border-radius);
    animation: modalFadeIn 0.3s;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

@keyframes modalFadeIn {
    from {opacity: 0; transform: translateY(-50px);}
    to {opacity: 1; transform: translateY(0);}
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--dark-color);
    font-size: 1.5rem;
}

.close-modal {
    font-size: 28px;
    font-weight: bold;
    color: var(--gray-color);
    cursor: pointer;
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--danger-color);
}

.modal-body {
    padding: 25px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 25px;
}

#modalImage {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.image-info {
    background-color: var(--light-color);
    padding: 20px;
    border-radius: var(--border-radius);
}

.image-info h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
    font-size: 1.2rem;
}

.info-item {
    margin-bottom: 15px;
}

.info-item label {
    display: block;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.info-value {
    color: var(--gray-color);
    word-break: break-all;
    font-size: 0.95rem;
}

.info-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.95rem;
}

.info-link:hover {
    text-decoration: underline;
}

.modal-footer {
    padding: 20px 25px;
    border-top: 1px solid var(--light-gray);
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

/* 加载遮罩 */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.loading-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.loading-content i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.loading-content p {
    color: var(--dark-color);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .section-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .materials-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .modal-body {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
}

@media (max-width: 576px) {
    body {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .materials-grid {
        grid-template-columns: 1fr;
    }
    
    .upload-area {
        padding: 25px;
    }
    
    .btn {
        padding: 10px 18px;
        font-size: 0.9rem;
    }
    
    .section-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box input {
        width: 100%;
    }
}

/* SweetAlert2 自定义样式 */
.swal2-popup {
    border-radius: 12px !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.swal2-title {
    font-family: 'Poppins', sans-serif !important;
    font-weight: 600 !important;
}

.swal2-confirm {
    background-color: var(--primary-color) !important;
    border-radius: 8px !important;
    padding: 10px 24px !important;
}

.swal2-cancel {
    border-radius: 8px !important;
    padding: 10px 24px !important;
}

.swal2-html-container {
    font-family: 'Poppins', sans-serif !important;
}