diff --git a/inc/getBasic.inc.php b/inc/getBasic.inc.php
index 6c8d9c3..cb0a4b6 100644
--- a/inc/getBasic.inc.php
+++ b/inc/getBasic.inc.php
@@ -100,8 +100,6 @@ function tscodeToName($ts_code){
     return $ts_code;
 }
 
-}
-
 function getBasicExtData($ts_code,$item,$day_st,$day_end){
 $mysqli = get_mysqli_connection();
 $allowed_items = ['total_mv','circ_mv','total_mv_all','circ_mv_all','pe_ttm','pb','ps','total_share','float_share','free_share'];
diff --git a/index-2.php b/index-2.php
index b030b87..20fab5d 100644
--- a/index-2.php
+++ b/index-2.php
@@ -196,112 +196,67 @@
             </div>
             <!-- 研究报告数据卡片 -->
             <div class="bg-white rounded-xl shadow-md p-6 card-hover">
-                <div class="flex items-center mb-6">
+                <div class="flex items-center mb-4">
                     <div class="w-10 h-10 rounded-full bg-indigo-100 flex items-center justify-center mr-3">
                         <i class="fa-solid fa-file-text text-indigo-600"></i>
                     </div>
                     <h3 class="text-lg font-semibold">研究报告</h3>
                 </div>
-                
-                <div class="mb-4 text-gray-600">
-                    <p>以下是最新的市场研究报告，点击可查看详情。</p>
-                </div>
-                
-                <div class="space-y-3">
-                    <?php
-                    // 扫描research目录下的HTML文件并提取标题
-                    $researchDir = __DIR__ . '/research';
-                    $htmlFiles = glob($researchDir . '/*.html');
-
-                            // 新增：扫描子目录中的index.html文件
-                            $subDirs = glob($researchDir . '/*', GLOB_ONLYDIR);
-                            foreach ($subDirs as $dir) {
-                                $indexFile = $dir . '/index.html';
-                                if (file_exists($indexFile)) {
-                                    $htmlFiles[] = $indexFile;
-                                }
-                            }
-                            
-                            if (!empty($htmlFiles)) {
-                                foreach ($htmlFiles as $file) {
-                                    $fileName = basename($file);
-                                    $filePath = str_replace(__DIR__ . '/', '', $file);
-                            
-                                    // 读取文件内容
-                                    $content = file_get_contents($file);
-
-                                    // 提取title标签内容
-                            preg_match('/<title>(.*?)<\/title>/i', $content, $matches);
-                            $title = !empty($matches[1]) ? $matches[1] : $fileName;
-                            
-                            // 输出链接
-                            echo '<a href="' . $filePath . '" target="_blank"
-                                   class="flex items-center p-3 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all">
-                                    <i class="fa-solid fa-file-pdf text-red-500 w-6"></i>
-                                    <span>' . htmlspecialchars($title) . '</span>
-                                  </a>';
-                        }
-                        
-                    } else {
-                        echo '<div class="p-3 border border-gray-200 rounded-lg text-gray-500">
-                                <i class="fa-solid fa-info-circle mr-2"></i>暂无研究报告
-                              </div>';
+                <p class="text-gray-600 text-sm mb-4">按日期查看研究报告。</p>
+                <?php
+                $researchDir = __DIR__ . '/research';
+                $dateDirs = [];
+                foreach (glob($researchDir . '/*', GLOB_ONLYDIR) as $d) {
+                    $bn = basename($d);
+                    if (preg_match('/^\d{8}$/', $bn)) {
+                        $dateDirs[] = $bn;
                     }
-                    ?>
-                </div>
-            
-        </div>
-
-        <div class="bg-white rounded-xl shadow-md p-6 card-hover">
-                <div class="flex items-center mb-6">
-                    <div class="w-10 h-10 rounded-full bg-indigo-100 flex items-center justify-center mr-3">
-                        <i class="fa-solid fa-file-text text-indigo-600"></i>
+                }
+                rsort($dateDirs);
+                if (empty($dateDirs)): ?>
+                    <div class="p-4 border border-gray-200 rounded-lg text-gray-500 text-center">
+                        <i class="fa-solid fa-inbox mr-2"></i>暂无日期归档的研究报告
                     </div>
-                    <h3 class="text-lg font-semibold">PDF报告</h3>
-                </div>
-                
-                <div class="mb-4 text-gray-600">
-                    <p>以下是最新的市场研究报告，点击可查看详情。</p>
-                </div>
-                
-                <div class="space-y-3">
-    
-                <a href="/research/ai_industry_report_kimi.pdf" target="_blank"
-                        class="flex items-center p-3 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all">
-                        <i class="fa-solid fa-file-pdf text-red-500 w-6"></i>
-                        <span>中国AI产业链深度研究报告</span>
-                        </a>
-                <a href="/research/ai_supply_chain_companys.pdf" target="_blank"
-                        class="flex items-center p-3 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all">
-                        <i class="fa-solid fa-file-pdf text-red-500 w-6"></i>
-                        <span>AI产业链上市公司护城河深度分析</span>
-                        </a>
-                <a href="/research/rongbai_vs_dangsheng.pdf" target="_blank"
-                        class="flex items-center p-3 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all">
-                        <i class="fa-solid fa-file-pdf text-red-500 w-6"></i>
-                        <span>容百科技VS当升科技-三季报(豆包)</span>
-                        </a>
-                <a href="/research/rongbai_vs_dangsheng_qwen.pdf" target="_blank"
-                        class="flex items-center p-3 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all">
-                        <i class="fa-solid fa-file-pdf text-red-500 w-6"></i>
-                        <span>容百科技与当升科技 2025 年三季报投资价值深度对比分析(千问)</span>
-                        </a>
-                <a href="/research/li_ore_2501_2511.pdf" target="_blank"
-                        class="flex items-center p-3 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all">
-                        <i class="fa-solid fa-file-pdf text-red-500 w-6"></i>
-                        <span>2025 年 1-11 月全球锂电行业供求关系深度研究报告(豆包)</span>
-                        </a>
-                <a href="/research/歌尔股份经营与AR行业分析.pdf" target="_blank"
-                        class="flex items-center p-3 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all">
-                        <i class="fa-solid fa-file-pdf text-red-500 w-6"></i>
-                        <span>歌尔股份经营与AR行业分析(千问)</span>
-                        </a>
-                </div>
-            
-        </div>
-                
-                
+                <?php else: ?>
+                    <div class="mb-4">
+                        <select id="reportDate" name="reportDate"
+                                class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary/50"
+                                onchange="showReportGroup(this.value)">
+                            <option value="">-- 选择日期 --</option>
+                            <?php foreach ($dateDirs as $d): ?>
+                            <option value="<?= $d ?>"><?= substr($d,0,4).'-'.substr($d,4,2).'-'.substr($d,6,2) ?></option>
+                            <?php endforeach; ?>
+                        </select>
+                    </div>
+                    <?php foreach ($dateDirs as $d):
+                        $htmls = glob("$researchDir/$d/*.html");
+                        if (empty($htmls)) continue;
+                    ?>
+                    <div class="report-group" id="report-<?= $d ?>" style="display:none;">
+                        <div class="text-xs text-gray-400 mb-2 font-medium"><?= substr($d,0,4).'-'.substr($d,4,2).'-'.substr($d,6,2) ?></div>
+                        <div class="space-y-2">
+                        <?php foreach ($htmls as $f):
+                            $content = file_get_contents($f);
+                            preg_match('/<title>(.*?)<\/title>/i', $content, $m);
+                            $title = !empty($m[1]) ? $m[1] : basename($f);
+                            $relPath = ltrim(str_replace(__DIR__, '', $f), '/');
+                        ?>
+                            <a href="/<?= $relPath ?>" target="_blank"
+                               class="flex items-center p-2 border border-gray-200 rounded-lg hover:bg-gray-50 transition-all text-sm">
+                                <i class="fa-solid fa-file-lines text-indigo-500 w-5 mr-2"></i>
+                                <span><?= htmlspecialchars($title) ?></span>
+                            </a>
+                        <?php endforeach; ?>
+                        </div>
+                    </div>
+                    <?php endforeach; ?>
+                <?php endif; ?>
             </div>
+
+
+	            </div>
+	        </div>
+	    </main>
         </div>
     </main>
 
@@ -329,7 +284,15 @@
             console.log(url);
             window.open(url);
         }
-        
+
+        function showReportGroup(date) {
+            document.querySelectorAll('.report-group').forEach(el => el.style.display = 'none');
+            if (date) {
+                const target = document.getElementById('report-' + date);
+                if (target) target.style.display = 'block';
+            }
+        }
+
         // 股票搜索功能
         document.getElementById('search-stock').addEventListener('click', function() {
             const stockCode = document.getElementById('ts_code').value.trim();