diff --git a/app/src/main/java/com/lukouguoji/aerologic/page/log/detail/LogDetailActivity.kt b/app/src/main/java/com/lukouguoji/aerologic/page/log/detail/LogDetailActivity.kt
index 0ef3c5d..d4fd20a 100644
--- a/app/src/main/java/com/lukouguoji/aerologic/page/log/detail/LogDetailActivity.kt
+++ b/app/src/main/java/com/lukouguoji/aerologic/page/log/detail/LogDetailActivity.kt
@@ -2,10 +2,12 @@ package com.lukouguoji.aerologic.page.log.detail
 
 import android.content.Context
 import android.content.Intent
+import android.graphics.Paint
 import android.os.Bundle
 import android.util.TypedValue
 import android.view.Gravity
 import android.view.View
+import android.view.ViewGroup
 import android.widget.FrameLayout
 import android.widget.LinearLayout
 import android.widget.TextView
@@ -69,13 +71,33 @@ class LogDetailActivity : BaseBindingActivity<ActivityLogDetailBinding, LogDetai
 
         val colorBlue = 0xFF1C8CF5.toInt()
         val colorGray = 0xFFCCCCCC.toInt()
-        val colorGreen = 0xFF4CAF50.toInt()
         val dotSize = dp(10)
         val lineHeight = dp(2)
+        val labelHPadding = dp(6)
+        val alignBase = dp(15)
 
-        // 计算每个节点宽度：屏幕宽度的 80% 均分给所有节点
+        // 按"四个汉字 label"估算节点 label 宽度（含左右各 6dp padding）
+        val labelTextSizePx = TypedValue.applyDimension(
+            TypedValue.COMPLEX_UNIT_SP, 13f, resources?.displayMetrics
+        )
+        val fourCharTextWidth = Paint().apply { textSize = labelTextSizePx }
+            .measureText("测测测测").toInt()
+        val estimatedLabelWidth = fourCharTextWidth + labelHPadding * 2
+
+        // 计算每个节点宽度：屏幕宽度的 80% 均分给所有节点，并加上限避免步数少时单格过宽
         val screenWidth = resources!!.displayMetrics.widthPixels
-        val stepWidth = (screenWidth * 0.8 / steps.size).toInt()
+        val rawStepWidth = (screenWidth * 0.8 / steps.size).toInt()
+        val maxStepWidth = estimatedLabelWidth + dp(40)
+        val stepWidth = minOf(rawStepWidth, maxStepWidth)
+
+        // 让第一个 label（居中在 stepWidth 内）的左边缘对齐到卡片内 15dp 基准线
+        // labelLeftInStep = (stepWidth - estimatedLabelWidth) / 2
+        // 所需 ll_steps leftMargin = alignBase - labelLeftInStep
+        val labelLeftInStep = (stepWidth - estimatedLabelWidth) / 2
+        (container.layoutParams as? ViewGroup.MarginLayoutParams)?.let {
+            it.leftMargin = alignBase - labelLeftInStep
+            container.layoutParams = it
+        }
 
         // 找到最新节点在步骤列表中的索引
         val latestIndex = steps.indexOfFirst { it.code == latestCode }
@@ -87,7 +109,7 @@ class LogDetailActivity : BaseBindingActivity<ActivityLogDetailBinding, LogDetai
             val isFirst = i == 0
             val isLast = i == steps.size - 1
 
-            // 每个步骤的根容器
+            // 每个步骤的根容器（内部水平居中：label 与圆点都在 stepWidth 中心）
             val stepLayout = LinearLayout(this).apply {
                 orientation = LinearLayout.VERTICAL
                 gravity = Gravity.CENTER_HORIZONTAL
@@ -99,7 +121,7 @@ class LogDetailActivity : BaseBindingActivity<ActivityLogDetailBinding, LogDetai
                 text = step.name
                 setTextSize(TypedValue.COMPLEX_UNIT_SP, 13f)
                 gravity = Gravity.CENTER
-                setPadding(dp(6), dp(2), dp(6), dp(2))
+                setPadding(labelHPadding, dp(2), labelHPadding, dp(2))
                 if (isLatest) {
                     setBackgroundResource(R.drawable.bg_step_current_badge)
                     setTextColor(0xFFFFFFFF.toInt())
@@ -120,9 +142,8 @@ class LogDetailActivity : BaseBindingActivity<ActivityLogDetailBinding, LogDetai
                 ).apply { topMargin = dp(8) }
             }
 
-            // 左半连线（从左边缘到中心）
+            // 左半连线（从左边缘到圆点中心）
             if (!isFirst) {
-                // 如果当前节点索引 <= latestIndex，左半线为蓝色；否则为浅灰色
                 val leftLineColor = if (latestIndex >= 0 && i <= latestIndex) colorBlue else colorGray
                 val lineLeft = View(this).apply {
                     setBackgroundColor(leftLineColor)
@@ -138,9 +159,8 @@ class LogDetailActivity : BaseBindingActivity<ActivityLogDetailBinding, LogDetai
                 }
             }
 
-            // 右半连线（从中心到右边缘）
+            // 右半连线（从圆点中心到右边缘）
             if (!isLast) {
-                // 如果当前节点索引 < latestIndex，右半线为蓝色；否则为浅灰色
                 val rightLineColor = if (latestIndex >= 0 && i < latestIndex) colorBlue else colorGray
                 val lineRight = View(this).apply {
                     setBackgroundColor(rightLineColor)
@@ -156,7 +176,7 @@ class LogDetailActivity : BaseBindingActivity<ActivityLogDetailBinding, LogDetai
                 }
             }
 
-            // 圆点（叠加在连线之上）
+            // 圆点（居中叠加在连线之上）
             val dot = View(this).apply {
                 setBackgroundResource(
                     when {
diff --git a/app/src/main/res/layout/activity_log_detail.xml b/app/src/main/res/layout/activity_log_detail.xml
index fcd7eec..473fe48 100644
--- a/app/src/main/res/layout/activity_log_detail.xml
+++ b/app/src/main/res/layout/activity_log_detail.xml
@@ -32,65 +32,88 @@
                 <LinearLayout
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:background="@drawable/bg_white_radius_8"
-                    android:orientation="vertical"
-                    android:padding="15dp">
+                    android:orientation="vertical">
 
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="运单信息"
-                        android:textColor="#333333"
-                        android:textSize="16sp"
-                        android:textStyle="bold" />
+                    <!-- 标题区 -->
+                    <LinearLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="40dp"
+                        android:background="@drawable/bg_white_radius_top_8"
+                        android:gravity="center_vertical"
+                        android:paddingHorizontal="15dp">
 
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="运单信息"
+                            android:textColor="#333333"
+                            android:textSize="16sp"
+                            android:textStyle="bold" />
+                    </LinearLayout>
+
+                    <!-- 分割线（贯穿卡片宽度） -->
+                    <com.google.android.material.divider.MaterialDivider
+                        android:layout_width="match_parent"
+                        android:layout_height="1dp"
+                        android:background="#E7E7E7" />
+
+                    <!-- 内容区 -->
                     <LinearLayout
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
-                        android:layout_marginTop="12dp"
-                        android:orientation="horizontal">
+                        android:background="@drawable/bg_white_radius_bottom_8"
+                        android:orientation="vertical">
 
                         <LinearLayout
-                            android:layout_width="0dp"
+                            android:layout_width="match_parent"
                             android:layout_height="wrap_content"
-                            android:layout_weight="1"
+                            android:layout_marginHorizontal="15dp"
+                            android:layout_marginVertical="12dp"
                             android:orientation="horizontal">
 
-                            <TextView
-                                android:layout_width="wrap_content"
+                            <LinearLayout
+                                android:layout_width="0dp"
                                 android:layout_height="wrap_content"
-                                android:text="运单号："
-                                android:textColor="#666666"
-                                android:textSize="14sp" />
+                                android:layout_weight="1"
+                                android:orientation="horizontal">
 
-                            <TextView
-                                android:layout_width="wrap_content"
+                                <TextView
+                                    android:layout_width="wrap_content"
+                                    android:layout_height="wrap_content"
+                                    android:text="运单号："
+                                    android:textColor="#666666"
+                                    android:textSize="14sp" />
+
+                                <TextView
+                                    android:layout_width="wrap_content"
+                                    android:layout_height="wrap_content"
+                                    android:text="@{viewModel.waybillNo}"
+                                    android:textColor="#333333"
+                                    android:textSize="14sp" />
+
+                            </LinearLayout>
+
+                            <LinearLayout
+                                android:layout_width="0dp"
                                 android:layout_height="wrap_content"
-                                android:text="@{viewModel.waybillNo}"
-                                android:textColor="#333333"
-                                android:textSize="14sp" />
+                                android:layout_weight="1"
+                                android:orientation="horizontal">
 
-                        </LinearLayout>
+                                <TextView
+                                    android:layout_width="wrap_content"
+                                    android:layout_height="wrap_content"
+                                    android:text="运单类型："
+                                    android:textColor="#666666"
+                                    android:textSize="14sp" />
 
-                        <LinearLayout
-                            android:layout_width="0dp"
-                            android:layout_height="wrap_content"
-                            android:layout_weight="1"
-                            android:orientation="horizontal">
+                                <TextView
+                                    android:layout_width="wrap_content"
+                                    android:layout_height="wrap_content"
+                                    android:text="@{viewModel.waybillType}"
+                                    android:textColor="#333333"
+                                    android:textSize="14sp" />
 
-                            <TextView
-                                android:layout_width="wrap_content"
-                                android:layout_height="wrap_content"
-                                android:text="运单类型："
-                                android:textColor="#666666"
-                                android:textSize="14sp" />
-
-                            <TextView
-                                android:layout_width="wrap_content"
-                                android:layout_height="wrap_content"
-                                android:text="@{viewModel.waybillType}"
-                                android:textColor="#333333"
-                                android:textSize="14sp" />
+                            </LinearLayout>
 
                         </LinearLayout>
 
@@ -103,24 +126,47 @@
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="15dp"
-                    android:background="@drawable/bg_white_radius_8"
-                    android:orientation="vertical"
-                    android:padding="15dp">
-
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="流转状态"
-                        android:textColor="#333333"
-                        android:textSize="16sp"
-                        android:textStyle="bold" />
+                    android:orientation="vertical">
 
+                    <!-- 标题区 -->
+                    <LinearLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="40dp"
+                        android:background="@drawable/bg_white_radius_top_8"
+                        android:gravity="center_vertical"
+                        android:paddingHorizontal="15dp">
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="流转状态"
+                            android:textColor="#333333"
+                            android:textSize="16sp"
+                            android:textStyle="bold" />
+                    </LinearLayout>
+
+                    <!-- 分割线 -->
+                    <com.google.android.material.divider.MaterialDivider
+                        android:layout_width="match_parent"
+                        android:layout_height="1dp"
+                        android:background="#E7E7E7" />
+
+                    <!-- 内容区 -->
                     <LinearLayout
-                        android:id="@+id/ll_steps"
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
-                        android:layout_marginTop="12dp"
-                        android:orientation="horizontal" />
+                        android:background="@drawable/bg_white_radius_bottom_8"
+                        android:orientation="vertical">
+
+                        <LinearLayout
+                            android:id="@+id/ll_steps"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_marginHorizontal="15dp"
+                            android:layout_marginVertical="12dp"
+                            android:orientation="horizontal" />
+
+                    </LinearLayout>
 
                 </LinearLayout>
 
@@ -129,25 +175,48 @@
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="15dp"
-                    android:background="@drawable/bg_white_radius_8"
-                    android:orientation="vertical"
-                    android:padding="15dp">
+                    android:orientation="vertical">
 
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="操作详情"
-                        android:textColor="#333333"
-                        android:textSize="16sp"
-                        android:textStyle="bold" />
+                    <!-- 标题区 -->
+                    <LinearLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="40dp"
+                        android:background="@drawable/bg_white_radius_top_8"
+                        android:gravity="center_vertical"
+                        android:paddingHorizontal="15dp">
 
-                    <androidx.recyclerview.widget.RecyclerView
-                        android:id="@+id/rv_timeline"
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="操作详情"
+                            android:textColor="#333333"
+                            android:textSize="16sp"
+                            android:textStyle="bold" />
+                    </LinearLayout>
+
+                    <!-- 分割线 -->
+                    <com.google.android.material.divider.MaterialDivider
+                        android:layout_width="match_parent"
+                        android:layout_height="1dp"
+                        android:background="#E7E7E7" />
+
+                    <!-- 内容区 -->
+                    <LinearLayout
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
-                        android:layout_marginTop="12dp"
-                        android:nestedScrollingEnabled="false"
-                        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
+                        android:background="@drawable/bg_white_radius_bottom_8"
+                        android:orientation="vertical">
+
+                        <androidx.recyclerview.widget.RecyclerView
+                            android:id="@+id/rv_timeline"
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:layout_marginTop="12dp"
+                            android:layout_marginBottom="12dp"
+                            android:nestedScrollingEnabled="false"
+                            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
+
+                    </LinearLayout>
 
                 </LinearLayout>