:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --background-color: #f8fafc;
    --sidebar-bg: #ffffff;
    --content-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

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

.settings-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* 侧边栏样式 */
.settings-sidebar {
    width: 280px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    margin-bottom: 4px;
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.nav-item:hover {
    background-color: var(--background-color);
    color: var(--text-primary);
}

.nav-item.active {
    background-color: #e0f2fe;
    color: var(--primary-color);
    font-weight: 500;
}

.nav-icon {
    font-size: 18px;
    margin-right: 12px;
}

.nav-text {
    font-size: 14px;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.btn-back {
    width: 100%;
    padding: 10px 16px;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-back:hover {
    background-color: #e2e8f0;
}

/* 主内容区域 */
.settings-content {
    flex: 1;
    overflow-y: auto;
    padding: 40px 60px;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.section-header {
    margin-bottom: 32px;
}

.section-header h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.section-description {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 提供商列表 */
.providers-list {
    display: grid;
    gap: 16px;
    margin-bottom: 24px;
}

.provider-card {
    background-color: var(--content-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s;
    cursor: pointer;
}

.provider-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.provider-card.configured {
    border-color: var(--success-color);
    background-color: #f0fdf4;
}

.provider-main {
    display: flex;
    align-items: center;
    flex: 1;
}

.provider-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-right: 16px;
    flex-shrink: 0;
}

.provider-info {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.provider-details h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.provider-details p {
    font-size: 13px;
    color: var(--text-secondary);
}

.provider-status {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.configured {
    background-color: #dcfce7;
    color: #166534;
}

.status-badge.not-configured {
    background-color: #fee2e2;
    color: #991b1b;
}

.btn-configure {
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-configure.secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-configure.secondary:hover {
    background-color: #eff6ff;
}

.btn-delete {
    padding: 8px 12px;
    background-color: transparent;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 8px;
}

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

/* 添加提供商按钮 */
.add-provider-section {
    margin-top: 24px;
}

.btn-primary {
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    padding: 12px 24px;
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* 通用设置 */
.setting-group {
    background-color: var(--content-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.setting-group h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.setting-item {
    margin-bottom: 20px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background-color: white;
    cursor: pointer;
    transition: all 0.2s;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.setting-actions {
    margin-top: 24px;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: white;
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s;
}

.modal-close:hover {
    background-color: var(--background-color);
    color: var(--text-primary);
}

.modal-body {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.required {
    color: var(--danger-color);
}

.input-with-toggle {
    position: relative;
    display: flex;
}

.form-input {
    width: 100%;
    padding: 10px 44px 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.toggle-visibility {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: background 0.2s;
}

.toggle-visibility:hover {
    background-color: var(--background-color);
}

.form-hint {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    max-height: 300px;
    overflow-y: auto;
    padding: 12px;
    background-color: var(--background-color);
    border-radius: 8px;
}

.model-chip {
    padding: 8px 12px;
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    text-align: center;
    transition: all 0.2s;
}

.model-chip:hover {
    border-color: var(--primary-color);
    background-color: #eff6ff;
}

.model-chip.custom-model {
    border-color: var(--success-color);
    background-color: #f0fdf4;
}

.model-chip.custom-model:hover {
    border-color: var(--success-color);
    background-color: #dcfce7;
}

/* 添加自定义模型区域 */
.add-custom-models-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px dashed var(--border-color);
}

.btn-text {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 14px;
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

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

#toggleIcon {
    display: inline-block;
    transition: transform 0.2s;
    font-size: 12px;
}

#toggleIcon.expanded {
    transform: rotate(90deg);
}

.custom-models-input {
    margin-top: 12px;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.custom-models-input textarea {
    width: 100%;
    resize: vertical;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .settings-sidebar {
        width: 100%;
        position: absolute;
        left: -100%;
        transition: left 0.3s;
        z-index: 100;
    }

    .settings-sidebar.active {
        left: 0;
    }

    .settings-content {
        padding: 20px;
    }

    .models-grid {
        grid-template-columns: 1fr;
    }
}

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

::-webkit-scrollbar-track {
    background: var(--background-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 临床模块 tabs 与 panel 样式 */
.module-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.module-tab {
    padding: 8px 12px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.18s;
}
.module-tab:hover { transform: translateY(-2px); }
.module-tab.active {
    background: linear-gradient(90deg, rgba(37,99,235,0.08), rgba(37,99,235,0.02));
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
}

.module-panels {
    margin-top: 12px;
}
.module-panel {
    background: var(--content-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 12px;
}
.module-panel.hidden { display: none; }
.module-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}
.module-keywords-display { color: var(--text-secondary); font-size: 13px; }
.module-keywords-display .kw-list { color: var(--text-primary); font-weight: 500; }
.module-requery { padding: 6px 10px; border-radius: 6px; background: var(--primary-color); color: #fff; border: none; cursor: pointer; }
.module-requery:hover { background: var(--primary-hover); }
/* 关键词 chips 样式 */
.keyword-chips {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.kw-chip {
    padding: 6px 10px;
    border-radius: 999px;
    background: #f1f5f9;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 13px;
}
.kw-chip:hover { background: #eef2ff; border-color: var(--primary-color); color: var(--primary-color); }

/* 历史按钮 */
.kw-history-btn { padding: 6px 8px; border-radius: 6px; background: transparent; border: 1px dashed var(--border-color); cursor: pointer; font-size: 12px; }

/* AI 补充 UI */
.ai-supplement-wrapper { display:flex; align-items:center; gap:8px; margin-top:8px; }
.ai-supplement-actions { display:flex; gap:8px; }
.ai-supplement-actions .btn { padding:6px 10px; border-radius:6px; cursor:pointer; }
.ai-supplement-actions .btn-primary { background: var(--primary-color); color: white; border: none; }
.ai-supplement-actions .btn-secondary { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); }

/* module panel card container */
.panel-card-container { display:flex; flex-direction:column; gap:12px; }