update select video

backend/templates/index.html

@@ -353,8 +353,20 @@
           <p class="map-hint">点击地图节点，进入对应维度的视频流</p>
         </section>
         <section class="video-browser">
-          <div class="filter-row ability-filters" id="ability-filters"></div>
-          <div class="filter-row discipline-filters" id="discipline-filters"></div>
+          <div class="filter-row">
+            <div class="filter-dropdown" id="ability-filter">
+              <button class="filter-dropdown-toggle" id="ability-toggle" aria-expanded="false" aria-haspopup="listbox">
+                <span id="ability-label">全部维度</span><b>▾</b>
+              </button>
+              <div class="filter-dropdown-panel hidden" id="ability-panel" role="listbox"></div>
+            </div>
+            <div class="filter-dropdown" id="discipline-filter">
+              <button class="filter-dropdown-toggle" id="discipline-toggle" aria-expanded="false" aria-haspopup="listbox">
+                <span id="discipline-label">全部专业</span><b>▾</b>
+              </button>
+              <div class="filter-dropdown-panel hidden" id="discipline-panel" role="listbox"></div>
+            </div>
+          </div>
           <div class="video-section-heading"><div><span class="kicker">VIDEO STREAM</span><h2 id="video-stream-title">全部视频</h2></div><span id="video-result-count">0 条内容</span></div>
           <div id="video-list" class="video-grid loading">正在读取视频流…</div>
         </section>