846 lines
29 KiB
JavaScript
846 lines
29 KiB
JavaScript
class QAComponent extends HTMLElement {
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constructor() {
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super();
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this.attachShadow({ mode: 'open' });
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this.accessLevel = 0;
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this.questions = [];
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this.currentPage = 1;
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this.pageSize = 5; // 每页显示5个问题
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this.totalPages = 1;
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}
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connectedCallback() {
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this.checkUserAccess();
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this.loadQuestions();
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this.render();
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this.setupEventListeners();
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}
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async checkUserAccess() {
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try {
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const userInfo = localStorage.getItem('userInfo');
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if (userInfo) {
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const user = JSON.parse(userInfo);
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this.accessLevel = user.access_level || 0;
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}
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} catch (error) {
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console.error('获取用户权限失败:', error);
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this.accessLevel = 0;
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}
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}
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async loadQuestions() {
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try {
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console.log('Loading page:', this.currentPage);
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const response = await fetch(`/api/qa/questions?sort=desc`);
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const data = await response.json();
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if (data.success) {
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this.questions = data.questions;
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this.renderQuestions();
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} else {
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console.error('加载问题失败:', data.message);
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}
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} catch (error) {
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console.error('加载问题失败:', error);
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}
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}
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render() {
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this.shadowRoot.innerHTML = `
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<style>
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:host {
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display: block;
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height: 100%;
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overflow: auto;
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padding: 20px;
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box-sizing: border-box;
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font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
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background-color: #f5f7fa;
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--primary-color: #1890ff;
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--primary-hover: #40a9ff;
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--danger-color: #ff4d4f;
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--danger-hover: #ff7875;
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--success-color: #52c41a;
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--success-hover: #73d13d;
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}
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.qa-container {
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background-color: white;
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border-radius: 12px;
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box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
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padding: 24px;
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min-height: calc(100% - 40px);
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box-sizing: border-box;
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display: flex;
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flex-direction: column;
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}
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.qa-header {
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display: flex;
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justify-content: flex-end;
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align-items: center;
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margin-bottom: 24px;
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}
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.ask-question-btn {
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background-color: var(--primary-color);
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color: white;
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border: none;
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padding: 10px 20px;
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border-radius: 8px;
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cursor: pointer;
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font-size: 15px;
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display: flex;
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align-items: center;
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gap: 8px;
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transition: all 0.3s ease;
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box-shadow: 0 2px 8px rgba(24, 144, 255, 0.2);
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}
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.ask-question-btn:hover {
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background-color: var(--primary-hover);
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transform: translateY(-1px);
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box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
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}
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.qa-item {
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background-color: white;
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border-radius: 10px;
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padding: 20px;
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box-shadow: 0 2px 12px rgba(0,0,0,0.06);
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transition: all 0.3s ease;
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border: 1px solid #eef2f7;
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}
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.qa-item:hover {
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transform: translateY(-2px);
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box-shadow: 0 4px 16px rgba(0,0,0,0.08);
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}
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.qa-question {
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font-weight: 600;
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color: #2c3e50;
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margin-bottom: 12px;
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font-size: 18px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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}
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.qa-answer {
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color: #4a5568;
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line-height: 1.7;
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margin-top: 15px;
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padding-top: 15px;
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border-top: 1px solid #edf2f7;
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}
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.answer-btn {
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background-color: var(--primary-color);
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color: white;
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border: none;
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padding: 8px 16px;
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border-radius: 6px;
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cursor: pointer;
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font-size: 14px;
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margin-top: 12px;
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transition: all 0.3s ease;
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}
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.answer-btn:hover {
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background-color: var(--primary-hover);
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transform: translateY(-1px);
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}
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.delete-btn {
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background-color: var(--danger-color);
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color: white;
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border: none;
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padding: 6px 12px;
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border-radius: 6px;
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cursor: pointer;
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font-size: 13px;
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transition: all 0.3s ease;
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}
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.delete-btn:hover {
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background-color: var(--danger-hover);
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transform: translateY(-1px);
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}
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.question-meta {
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font-size: 13px;
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color: #718096;
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margin-top: 8px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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}
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.form-group input,
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.form-group textarea {
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width: 100%;
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padding: 12px;
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border: 1px solid #e2e8f0;
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border-radius: 8px;
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font-size: 15px;
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transition: all 0.3s ease;
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box-sizing: border-box;
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}
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.form-group input:focus,
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.form-group textarea:focus {
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border-color: var(--primary-color);
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box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
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outline: none;
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}
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.form-group textarea {
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min-height: 120px;
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max-height: 300px;
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resize: vertical;
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}
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.submit-btn {
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background-color: var(--success-color);
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color: white;
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padding: 10px 20px;
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border-radius: 8px;
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transition: all 0.3s ease;
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}
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.submit-btn:hover {
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background-color: var(--success-hover);
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transform: translateY(-1px);
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}
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.cancel-btn {
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background-color: var(--danger-color);
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color: white;
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padding: 10px 20px;
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border-radius: 8px;
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transition: all 0.3s ease;
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}
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.cancel-btn:hover {
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background-color: var(--danger-hover);
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transform: translateY(-1px);
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}
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.qa-content {
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flex: 1;
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display: flex;
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flex-direction: column;
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}
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.qa-list {
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flex: 1;
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display: flex;
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flex-direction: column;
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gap: 20px;
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}
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.question-form {
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display: none;
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background-color: #f8f9fa;
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border-radius: 8px;
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padding: 20px;
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margin-bottom: 20px;
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}
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.question-form.active {
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display: block;
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}
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.form-actions {
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display: flex;
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justify-content: flex-end;
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gap: 12px;
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margin-top: 24px;
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}
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.form-actions button {
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padding: 10px 20px;
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border: none;
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border-radius: 8px;
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cursor: pointer;
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font-size: 14px;
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transition: all 0.3s ease;
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outline: none;
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}
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.form-actions .submit-btn {
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background-color: var(--primary-color);
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color: white;
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}
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.form-actions .submit-btn:hover {
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background-color: var(--primary-hover);
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transform: translateY(-1px);
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}
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.form-actions .cancel-btn {
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background-color: var(--danger-color);
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color: white;
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}
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.form-actions .cancel-btn:hover {
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background-color: var(--danger-hover);
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transform: translateY(-1px);
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}
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.answer-form {
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display: none;
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margin-top: 10px;
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}
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.answer-form.active {
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display: block;
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}
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.answer-btn.hidden {
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display: none;
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}
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.modal-overlay {
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display: none;
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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background-color: rgba(0, 0, 0, 0.5);
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z-index: 1000;
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justify-content: center;
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align-items: center;
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}
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.modal-overlay.active {
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display: flex;
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}
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.modal-content {
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background-color: white;
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border-radius: 12px;
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padding: 24px;
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width: 90%;
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max-width: 500px;
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max-height: 90vh;
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overflow-y: auto;
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position: relative;
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box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
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}
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.modal-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 20px;
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}
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.modal-title {
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font-size: 20px;
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font-weight: 600;
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color: #2c3e50;
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}
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.modal-close {
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background: none;
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border: none;
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font-size: 24px;
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color: #718096;
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cursor: pointer;
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padding: 4px;
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line-height: 1;
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transition: color 0.3s ease;
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outline: none;
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}
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.modal-close:hover {
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color: var(--primary-color);
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}
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.question-form {
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display: block;
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background-color: transparent;
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padding: 0;
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margin: 0;
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}
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.form-group {
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margin-bottom: 20px;
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}
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.form-group label {
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display: block;
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margin-bottom: 8px;
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color: #4a5568;
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font-weight: 500;
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}
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.confirm-modal {
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display: none;
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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background-color: rgba(0, 0, 0, 0.5);
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z-index: 1001;
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justify-content: center;
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align-items: center;
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}
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.confirm-modal.active {
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display: flex;
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}
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.confirm-content {
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background-color: white;
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border-radius: 12px;
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padding: 24px;
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width: 90%;
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max-width: 400px;
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position: relative;
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box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
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}
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.confirm-title {
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font-size: 18px;
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font-weight: 600;
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color: #2c3e50;
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margin-bottom: 16px;
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}
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.confirm-message {
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color: #4a5568;
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margin-bottom: 24px;
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line-height: 1.5;
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}
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.confirm-actions {
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display: flex;
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justify-content: flex-end;
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gap: 12px;
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}
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.confirm-actions button {
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padding: 8px 16px;
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border: none;
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border-radius: 6px;
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cursor: pointer;
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font-size: 14px;
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transition: all 0.3s ease;
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outline: none;
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}
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.confirm-actions .confirm-btn {
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background-color: var(--danger-color);
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color: white;
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}
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.confirm-actions .confirm-btn:hover {
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background-color: var(--danger-hover);
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}
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.confirm-actions .cancel-btn {
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background-color: #e2e8f0;
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color: #4a5568;
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}
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.confirm-actions .cancel-btn:hover {
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background-color: #cbd5e0;
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}
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.pagination {
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display: flex;
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justify-content: center;
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align-items: center;
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margin-top: 30px;
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gap: 15px;
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padding: 15px 0;
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}
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.pagination-btn {
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padding: 8px 16px;
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border: 1px solid #ddd;
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border-radius: 6px;
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background-color: white;
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color: #2d3748;
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cursor: pointer;
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transition: all 0.3s ease;
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min-width: 80px;
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}
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.pagination-btn:hover:not(:disabled) {
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background-color: #f8f9fa;
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border-color: var(--primary-color);
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color: var(--primary-color);
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}
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.pagination-btn:disabled {
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background-color: #f8f9fa;
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color: #a0aec0;
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cursor: not-allowed;
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}
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.page-info {
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color: #4a5568;
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font-size: 14px;
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}
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</style>
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<div class="qa-container">
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<div class="qa-header">
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<button class="ask-question-btn">
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<img src="assets/icons/png/plus.png" alt="提问" width="16" height="16">
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提问
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</button>
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</div>
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<div class="qa-content">
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<div class="qa-list" id="qaList">
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<!-- 问题列表将通过JavaScript动态添加 -->
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</div>
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<div class="pagination" id="pagination">
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<!-- 分页按钮将通过JavaScript动态添加 -->
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</div>
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</div>
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</div>
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<div class="modal-overlay" id="questionModal">
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<div class="modal-content">
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<div class="modal-header">
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<div class="modal-title">提问</div>
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<button class="modal-close">×</button>
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</div>
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<div class="question-form">
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<div class="form-group">
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<label for="questionTitle">问题标题</label>
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<input type="text" id="questionTitle" placeholder="请输入问题标题">
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</div>
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<div class="form-group">
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<label for="questionContent">问题内容</label>
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<textarea id="questionContent" placeholder="请详细描述您的问题"></textarea>
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</div>
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<div class="form-actions">
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<button class="cancel-btn">取消</button>
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<button class="submit-btn">提交问题</button>
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</div>
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</div>
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</div>
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</div>
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<div class="confirm-modal" id="confirmModal">
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<div class="confirm-content">
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<div class="confirm-title">确认删除</div>
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<div class="confirm-message">确定要删除这个内容吗？此操作不可恢复。</div>
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<div class="confirm-actions">
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<button class="cancel-btn">取消</button>
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<button class="confirm-btn">确认删除</button>
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</div>
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</div>
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</div>
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`;
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}
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setupEventListeners() {
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const askQuestionBtn = this.shadowRoot.querySelector('.ask-question-btn');
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const modal = this.shadowRoot.querySelector('.modal-overlay');
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const modalClose = this.shadowRoot.querySelector('.modal-close');
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const cancelBtn = this.shadowRoot.querySelector('.cancel-btn');
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const submitBtn = this.shadowRoot.querySelector('.submit-btn');
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const closeModal = () => {
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modal.classList.remove('active');
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this.shadowRoot.getElementById('questionTitle').value = '';
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this.shadowRoot.getElementById('questionContent').value = '';
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};
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askQuestionBtn.addEventListener('click', () => {
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modal.classList.add('active');
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});
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modalClose.addEventListener('click', closeModal);
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cancelBtn.addEventListener('click', closeModal);
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// 点击模态框外部关闭
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modal.addEventListener('click', (e) => {
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if (e.target === modal) {
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closeModal();
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}
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});
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submitBtn.addEventListener('click', async () => {
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const title = this.shadowRoot.getElementById('questionTitle').value.trim();
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const content = this.shadowRoot.getElementById('questionContent').value.trim();
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if (!title || !content) {
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alert('请填写完整的问题信息');
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return;
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}
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try {
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const userInfo = JSON.parse(localStorage.getItem('userInfo') || '{}');
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const response = await fetch('/api/qa/questions', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({
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title,
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content,
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userInfo
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})
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});
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const data = await response.json();
|
|
if (data.success) {
|
|
closeModal();
|
|
await this.loadQuestions();
|
|
} else {
|
|
alert(data.message || '创建问题失败');
|
|
}
|
|
} catch (error) {
|
|
console.error('创建问题失败:', error);
|
|
alert('创建问题失败，请稍后重试');
|
|
}
|
|
});
|
|
}
|
|
|
|
async addAnswer(questionId, content) {
|
|
try {
|
|
const userInfo = JSON.parse(localStorage.getItem('userInfo') || '{}');
|
|
const response = await fetch(`/api/qa/questions/${questionId}/answers`, {
|
|
method: 'POST',
|
|
headers: {
|
|
'Content-Type': 'application/json'
|
|
},
|
|
body: JSON.stringify({
|
|
content,
|
|
userInfo
|
|
})
|
|
});
|
|
|
|
const data = await response.json();
|
|
if (data.success) {
|
|
await this.loadQuestions();
|
|
} else {
|
|
alert(data.message || '添加回答失败');
|
|
}
|
|
} catch (error) {
|
|
console.error('添加回答失败:', error);
|
|
alert('添加回答失败，请稍后重试');
|
|
}
|
|
}
|
|
|
|
async deleteQuestion(questionId) {
|
|
try {
|
|
const userInfo = JSON.parse(localStorage.getItem('userInfo') || '{}');
|
|
const response = await fetch(`/api/qa/questions/${questionId}`, {
|
|
method: 'DELETE',
|
|
headers: {
|
|
'Content-Type': 'application/json'
|
|
},
|
|
body: JSON.stringify({ userInfo })
|
|
});
|
|
|
|
const data = await response.json();
|
|
if (data.success) {
|
|
await this.loadQuestions();
|
|
} else {
|
|
alert(data.message || '删除问题失败');
|
|
}
|
|
} catch (error) {
|
|
console.error('删除问题失败:', error);
|
|
alert('删除问题失败，请稍后重试');
|
|
}
|
|
}
|
|
|
|
async deleteAnswer(answerId) {
|
|
try {
|
|
const userInfo = JSON.parse(localStorage.getItem('userInfo') || '{}');
|
|
const response = await fetch(`/api/qa/answers/${answerId}`, {
|
|
method: 'DELETE',
|
|
headers: {
|
|
'Content-Type': 'application/json'
|
|
},
|
|
body: JSON.stringify({ userInfo })
|
|
});
|
|
|
|
const data = await response.json();
|
|
if (data.success) {
|
|
await this.loadQuestions();
|
|
} else {
|
|
alert(data.message || '删除回答失败');
|
|
}
|
|
} catch (error) {
|
|
console.error('删除回答失败:', error);
|
|
alert('删除回答失败，请稍后重试');
|
|
}
|
|
}
|
|
|
|
showConfirmDialog(type, id) {
|
|
const modal = this.shadowRoot.querySelector('.confirm-modal');
|
|
const confirmBtn = modal.querySelector('.confirm-btn');
|
|
const cancelBtn = modal.querySelector('.cancel-btn');
|
|
const message = modal.querySelector('.confirm-message');
|
|
|
|
message.textContent = type === 'question' ?
|
|
'确定要删除这个问题吗？此操作不可恢复。' :
|
|
'确定要删除这个回答吗？此操作不可恢复。';
|
|
|
|
const closeModal = () => {
|
|
modal.classList.remove('active');
|
|
};
|
|
|
|
const handleConfirm = async () => {
|
|
if (type === 'question') {
|
|
await this.deleteQuestion(id);
|
|
} else {
|
|
await this.deleteAnswer(id);
|
|
}
|
|
closeModal();
|
|
};
|
|
|
|
// 移除旧的事件监听器
|
|
const newConfirmBtn = confirmBtn.cloneNode(true);
|
|
const newCancelBtn = cancelBtn.cloneNode(true);
|
|
confirmBtn.parentNode.replaceChild(newConfirmBtn, confirmBtn);
|
|
cancelBtn.parentNode.replaceChild(newCancelBtn, cancelBtn);
|
|
|
|
// 添加新的事件监听器
|
|
newConfirmBtn.addEventListener('click', handleConfirm);
|
|
newCancelBtn.addEventListener('click', closeModal);
|
|
|
|
modal.classList.add('active');
|
|
}
|
|
|
|
renderQuestions() {
|
|
const qaList = this.shadowRoot.getElementById('qaList');
|
|
|
|
if (this.questions.length === 0) {
|
|
qaList.innerHTML = '<div class="error">暂无问题</div>';
|
|
return;
|
|
}
|
|
|
|
this.totalPages = Math.ceil(this.questions.length / this.pageSize);
|
|
const startIndex = (this.currentPage - 1) * this.pageSize;
|
|
const endIndex = Math.min(startIndex + this.pageSize, this.questions.length);
|
|
const currentPageQuestions = this.questions.slice(startIndex, endIndex);
|
|
|
|
qaList.innerHTML = currentPageQuestions.map(question => `
|
|
<div class="qa-item">
|
|
<div class="qa-question">
|
|
<span>${question.title}</span>
|
|
<button class="delete-btn ${this.accessLevel >= 3 ? '' : 'hidden'}"
|
|
onclick="this.getRootNode().host.showConfirmDialog('question', ${question.id})">
|
|
删除
|
|
</button>
|
|
</div>
|
|
<div class="question-meta">
|
|
提问者：${question.author} | 时间：${question.created_at}
|
|
</div>
|
|
<div class="qa-content">${question.content}</div>
|
|
${question.answers.map(answer => `
|
|
<div class="qa-answer">
|
|
<div class="answer-content">${answer.content}</div>
|
|
<div class="question-meta">
|
|
<span>回答者：${answer.author} | 时间：${answer.created_at}</span>
|
|
<button class="delete-btn ${this.accessLevel >= 3 ? '' : 'hidden'}"
|
|
onclick="this.getRootNode().host.showConfirmDialog('answer', ${answer.id})">
|
|
删除
|
|
</button>
|
|
</div>
|
|
</div>
|
|
`).join('')}
|
|
<button class="answer-btn ${this.accessLevel >= 2 ? '' : 'hidden'}" data-question-id="${question.id}">
|
|
回答
|
|
</button>
|
|
<div class="answer-form" data-question-id="${question.id}">
|
|
<div class="form-group">
|
|
<textarea placeholder="请输入您的回答"></textarea>
|
|
</div>
|
|
<div class="form-actions">
|
|
<button class="cancel-btn">取消</button>
|
|
<button class="submit-btn">提交回答</button>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
`).join('');
|
|
|
|
// 添加分页
|
|
const pagination = this.shadowRoot.getElementById('pagination');
|
|
pagination.innerHTML = `
|
|
<button class="pagination-btn" id="prevPage" ${this.currentPage === 1 ? 'disabled' : ''}>
|
|
上一页
|
|
</button>
|
|
<span class="page-info">第 ${this.currentPage} 页 / 共 ${this.totalPages} 页</span>
|
|
<button class="pagination-btn" id="nextPage" ${this.currentPage === this.totalPages ? 'disabled' : ''}>
|
|
下一页
|
|
</button>
|
|
`;
|
|
|
|
// 添加分页按钮事件监听
|
|
this.addPaginationListeners();
|
|
|
|
// 重新绑定回答按钮的事件监听器
|
|
const answerBtns = qaList.querySelectorAll('.answer-btn');
|
|
answerBtns.forEach(btn => {
|
|
btn.addEventListener('click', () => {
|
|
const questionId = parseInt(btn.dataset.questionId);
|
|
const answerForm = qaList.querySelector(`.answer-form[data-question-id="${questionId}"]`);
|
|
answerForm.classList.add('active');
|
|
});
|
|
});
|
|
|
|
// 绑定回答表单的事件监听器
|
|
const answerForms = qaList.querySelectorAll('.answer-form');
|
|
answerForms.forEach(form => {
|
|
const questionId = parseInt(form.dataset.questionId);
|
|
const cancelBtn = form.querySelector('.cancel-btn');
|
|
const submitBtn = form.querySelector('.submit-btn');
|
|
const textarea = form.querySelector('textarea');
|
|
|
|
cancelBtn.addEventListener('click', () => {
|
|
form.classList.remove('active');
|
|
textarea.value = '';
|
|
});
|
|
|
|
submitBtn.addEventListener('click', () => {
|
|
const content = textarea.value.trim();
|
|
if (!content) {
|
|
alert('请输入回答内容');
|
|
return;
|
|
}
|
|
this.addAnswer(questionId, content);
|
|
form.classList.remove('active');
|
|
textarea.value = '';
|
|
});
|
|
});
|
|
}
|
|
|
|
// 添加分页按钮事件监听
|
|
addPaginationListeners() {
|
|
const prevButton = this.shadowRoot.getElementById('prevPage');
|
|
const nextButton = this.shadowRoot.getElementById('nextPage');
|
|
|
|
if (prevButton) {
|
|
prevButton.addEventListener('click', () => {
|
|
if (this.currentPage > 1) {
|
|
this.currentPage--;
|
|
this.renderQuestions();
|
|
}
|
|
});
|
|
}
|
|
|
|
if (nextButton) {
|
|
nextButton.addEventListener('click', () => {
|
|
if (this.currentPage < this.totalPages) {
|
|
this.currentPage++;
|
|
this.renderQuestions();
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
customElements.define('qa-component', QAComponent);
|