/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --error-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* 头部导航 */
.main-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    box-shadow: var(--shadow);
}

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

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* 认证页面 */
.auth-box {
    max-width: 450px;
    margin: 80px auto;
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.auth-box .logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-box .logo h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.auth-form h2 {
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

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

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

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

.btn-secondary:hover {
    background: #475569;
}

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

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

.btn-block {
    width: 100%;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* 提示框 */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--error-color);
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--primary-color);
}

/* 仪表板 */
.dashboard h1 {
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    font-size: 3rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.action-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.card h3 {
    margin-bottom: 1rem;
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.card-primary {
    border-left: 4px solid var(--primary-color);
}

.card-warning {
    border-left: 4px solid var(--warning-color);
}

/* 页面标题 */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-secondary);
}

/* API Keys 管理 */
.api-keys-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.api-key-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.model-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.model-header h3 {
    color: var(--text-primary);
}

.model-id {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: var(--bg-color);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}

.model-info {
    margin-bottom: 1rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

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

.info-item .value {
    color: var(--text-primary);
    font-size: 0.9rem;
}

.key-status {
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-configured {
    background: #d1fae5;
    color: #065f46;
}

.status-unconfigured {
    background: #fee2e2;
    color: #991b1b;
}

.key-preview {
    font-family: monospace;
    font-size: 0.9rem;
}

.key-actions {
    display: flex;
    gap: 0.5rem;
}

.edit-form {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.form-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.help-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.help-section h2 {
    margin-bottom: 1rem;
}

.help-section ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.help-section li {
    margin-bottom: 0.5rem;
}

/* 图片上传 */
.upload-section {
    margin-bottom: 2rem;
}

.upload-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.upload-box {
    position: relative;
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    min-height: 300px;
    cursor: pointer;
    transition: all 0.3s;
}

.upload-box:hover {
    border-color: var(--primary-color);
}

.upload-box.dragover {
    border-color: var(--primary-color);
    background: #eff6ff;
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 300px;
    padding: 2rem;
    text-align: center;
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.upload-text strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.upload-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.image-preview {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 300px;
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 6px;
}

.remove-image {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--danger-color);
    color: white;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.upload-tips {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.upload-tips h3 {
    margin-bottom: 1rem;
}

.upload-tips ul {
    margin-left: 1.5rem;
}

.upload-tips li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.models-info {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.models-info h3 {
    margin-bottom: 1rem;
}

.models-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.model-tag {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
}

.model-tag.configured {
    background: #d1fae5;
    color: #065f46;
}

.model-tag.selected {
    background: #fef3c7;
    color: #92400e;
}

.model-tag.unconfigured {
    background: #f1f5f9;
    color: #64748b;
}

.model-legend {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* 处理页面 */
.processing-page {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.processing-page h1 {
    margin-bottom: 1rem;
}

.uploaded-images {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 2rem 0;
}

.uploaded-images img {
    max-width: 300px;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.analysis-progress {
    margin: 3rem 0;
}

.progress-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.model-name {
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    width: 0;
    background: var(--primary-color);
    transition: width 0.5s;
}

.progress-item.processing .progress-fill {
    background: var(--warning-color);
}

.progress-item.completed .progress-fill {
    background: var(--success-color);
}

.progress-item.error .progress-fill {
    background: var(--error-color);
}

.status-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

#completion-message {
    margin-top: 3rem;
    padding: 2rem;
    background: #d1fae5;
    border-radius: 8px;
}

#completion-message h2 {
    color: var(--success-color);
    margin-bottom: 1rem;
}

/* 结果页面 */
.results-page {
    max-width: 1000px;
    margin: 0 auto;
}

.analysis-date {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.analysis-images-display {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.analysis-images-display h3 {
    margin-bottom: 1rem;
}

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

.images-grid img {
    width: 100%;
    height: auto;
    border-radius: 6px;
}

.ai-results {
    margin-bottom: 2rem;
}

.ai-results h2 {
    margin-bottom: 1.5rem;
}

.result-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.model-badge {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: var(--bg-color);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}

.result-content {
    line-height: 1.8;
}

.analysis-text {
    color: var(--text-primary);
    white-space: pre-wrap;
}

.error-message {
    color: var(--error-color);
    padding: 1rem;
    background: #fee2e2;
    border-radius: 6px;
}

.summary-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.summary-section h2 {
    margin-bottom: 1.5rem;
}

.summary-card {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
}

.summary-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.summary-model {
    font-weight: 600;
    color: var(--primary-color);
}

.summary-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.summary-content {
    line-height: 1.8;
    white-space: pre-wrap;
}

.summary-form {
    margin-top: 1.5rem;
}

.model-selection {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.model-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.model-option:hover:not(.disabled) {
    border-color: var(--primary-color);
}

.model-option.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.model-option input[type="radio"] {
    margin-right: 1rem;
}

.option-content {
    flex: 1;
}

.option-content strong {
    display: block;
    margin-bottom: 0.25rem;
}

.option-content small {
    color: var(--text-secondary);
}

.actions-footer {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

/* 历史记录 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
}

.empty-state h2 {
    margin-bottom: 1rem;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.history-card {
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s;
}

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

.card-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--bg-color);
}

.card-images img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 4px;
}

.card-info {
    padding: 1rem;
}

.card-date {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.has-summary {
    color: var(--success-color);
}

.card-actions {
    padding: 0 1rem 1rem;
}

.recent-analysis {
    margin-top: 3rem;
}

.recent-analysis h2 {
    margin-bottom: 1.5rem;
}

.analysis-list {
    display: grid;
    gap: 1rem;
}

.analysis-item {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.analysis-item .analysis-images {
    display: flex;
    gap: 0.5rem;
}

.analysis-item .analysis-images img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
}

.analysis-info {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.analysis-info .analysis-date {
    color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .main-nav {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .stats-grid,
    .action-cards,
    .upload-grid,
    .images-grid {
        grid-template-columns: 1fr;
    }
    
    .auth-box {
        margin: 20px;
        padding: 2rem;
    }
}