diff --git a/public/admin.html b/public/admin.html
index 17d769a..f57716e 100644
--- a/public/admin.html
+++ b/public/admin.html
@@ -144,7 +144,6 @@
                 <span class="sim-slot__state" id="simSlot0State">--</span>
               </div>
               <span class="sim-slot__phone" id="simSlot0Phone">--</span>
-              <button class="button button--secondary button--compact" type="button" data-sim-switch="0">切到SIM1</button>
             </article>
 
             <article class="sim-slot" id="simSlot1">
@@ -153,7 +152,6 @@
                 <span class="sim-slot__state" id="simSlot1State">--</span>
               </div>
               <span class="sim-slot__phone" id="simSlot1Phone">--</span>
-              <button class="button button--secondary button--compact" type="button" data-sim-switch="1">切到SIM2</button>
             </article>
           </div>
         </div>
@@ -227,6 +225,10 @@
             <span>当前发送SIM</span>
             <strong id="sendSimLabel">--</strong>
           </p>
+          <div class="send-sim-picker" aria-label="选择发送SIM">
+            <button class="button button--secondary button--compact" type="button" data-sim-switch="0">SIM1</button>
+            <button class="button button--secondary button--compact" type="button" data-sim-switch="1">SIM2</button>
+          </div>
           <form id="smsForm" class="stack-form">
             <label class="field">
               <span class="field__label">目标号码</span>
@@ -419,4 +421,4 @@
   <script src="/assets/admin.js" type="module"></script>
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/public/assets/admin.css b/public/assets/admin.css
index 3702095..3d376a1 100644
--- a/public/assets/admin.css
+++ b/public/assets/admin.css
@@ -736,7 +736,7 @@ h3 {
 
 .sim-slot {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) auto;
+  grid-template-columns: minmax(0, 1fr);
   align-items: center;
   gap: 8px 12px;
   border: 1px solid var(--hairline);
@@ -751,8 +751,8 @@ h3 {
 }
 
 .sim-slot.is-active {
-  border-color: rgba(93, 184, 114, 0.55);
-  box-shadow: inset 3px 0 0 var(--success);
+  border-color: var(--surface-cream-strong);
+  background: var(--surface-soft);
 }
 
 .sim-slot__topline {
@@ -782,8 +782,8 @@ h3 {
 }
 
 .sim-slot.is-active .sim-slot__state {
-  background: rgba(93, 184, 114, 0.16);
-  color: #2f7c44;
+  background: var(--surface-cream-strong);
+  color: var(--body-strong);
 }
 
 .sim-slot__phone {
@@ -979,7 +979,7 @@ h3 {
   display: inline-flex;
   align-items: center;
   gap: 8px;
-  margin: -4px 0 var(--space-md);
+  margin: -4px 0 8px;
   padding: 0;
 }
 
@@ -997,6 +997,17 @@ h3 {
   overflow-wrap: anywhere;
 }
 
+.send-sim-picker {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin: 0 0 var(--space-md);
+}
+
+.send-sim-picker .button {
+  min-width: 96px;
+}
+
 .field {
   display: grid;
   gap: var(--space-xs);
diff --git a/public/assets/admin.js b/public/assets/admin.js
index de31eda..1b4da83 100644
--- a/public/assets/admin.js
+++ b/public/assets/admin.js
@@ -254,6 +254,11 @@ function renderSendSimLabel() {
   setText(elements.sendSimLabel, getActiveSimLabel());
 }
 
+function setSimSwitchStatus(message, type = '') {
+  setStatusMessage(elements.simStatus, message);
+  setStatusMessage(elements.smsStatus, message, type);
+}
+
 function getSimSlot(sim = {}, slotNumber) {
   return (sim.slots || []).find(slot => slot.slot === slotNumber) || {
     slot: slotNumber,
@@ -367,15 +372,15 @@ function renderSimStatus(sim = {}) {
     const unavailable = slotInfo.present === false;
     button.hidden = singleSlot;
     button.disabled = state.simBusy || Boolean(sim.switching) || !supported || isActive || unavailable;
-    button.textContent = isActive ? '正在使用' : `切到SIM${slot + 1}`;
+    button.textContent = isActive ? `SIM${slot + 1} 当前` : `切到SIM${slot + 1}`;
   });
 
   if (state.simBusy || sim.switching) {
-    setStatusMessage(elements.simStatus, '正在切换SIM...');
+    setSimSwitchStatus('正在切换SIM...');
   } else if (supported && activeSlot?.present === true) {
-    setStatusMessage(elements.simStatus, `当前 ${getSimDisplayLabel(activeSlot)}`, 'success');
+    setStatusMessage(elements.simStatus, `当前 ${getSimDisplayLabel(activeSlot)}`);
   } else if (supported && activeSlot?.present === false) {
-    setStatusMessage(elements.simStatus, `${getSimDisplayLabel(activeSlot)} 未就绪，请检查是否插卡`, 'error');
+    setStatusMessage(elements.simStatus, `${getSimDisplayLabel(activeSlot)} 未就绪，请检查是否插卡`);
   } else if (!supported) {
     setStatusMessage(elements.simStatus, '双卡不可用');
   } else {
@@ -867,10 +872,10 @@ async function switchSim(slot) {
       body: JSON.stringify({ slot: slotNumber })
     });
     renderSimStatus(result.data || {});
-    setStatusMessage(elements.simStatus, result.message || `已切换到SIM${slotNumber + 1}`, 'success');
+    setSimSwitchStatus(result.message || `已切换到SIM${slotNumber + 1}`, 'success');
     await refreshAll();
   } catch (err) {
-    setStatusMessage(elements.simStatus, err.message, 'error');
+    setSimSwitchStatus(err.message, 'error');
     await refreshSim().catch(() => {});
   } finally {
     state.simBusy = false;