diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseCarController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseCarController.java
index 299722a8..f9513e6d 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseCarController.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseCarController.java
@@ -1,6 +1,7 @@
 package com.ruoyi.web.controller.tyre;
 
 import java.util.List;
+import java.util.Map;
 
 import com.ruoyi.common.utils.ShiroUtils;
 import org.apache.shiro.authz.annotation.RequiresPermissions;
@@ -13,7 +14,6 @@ import com.ruoyi.common.annotation.Log;
 import com.ruoyi.common.enums.BusinessType;
 import com.ruoyi.system.domain.BaseCar;
 import com.ruoyi.system.domain.CarCheckLifecycleDTO;
-import com.ruoyi.system.domain.CarLatestMaintenanceDTO;
 import com.ruoyi.system.domain.CarLifecycleDTO;
 import com.ruoyi.system.domain.CarLifecycleQuery;
 import com.ruoyi.system.domain.CarMileageLifecycleDTO;
@@ -206,14 +206,14 @@ public class BaseCarController extends BaseController
     }
 
     /**
-     * 查询车辆最近一次维保前后对比。
+     * 查询车辆轮位最新维护数据。
      */
     @RequiresPermissions("system:car:view")
     @GetMapping("/lifecycle/{carNo}/latest-maintenance")
     @ResponseBody
     public AjaxResult latestMaintenance(@PathVariable("carNo") String carNo)
     {
-        CarLatestMaintenanceDTO latestMaintenance = baseCarLifecycleService.selectLatestMaintenance(buildLifecycleQuery(carNo));
+        List<Map> latestMaintenance = baseCarLifecycleService.selectLatestWheelPositionMaintenance(buildLifecycleQuery(carNo));
         return AjaxResult.success(latestMaintenance);
     }
 
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseTyreController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseTyreController.java
index 84136f6a..07a036e8 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseTyreController.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tyre/BaseTyreController.java
@@ -406,8 +406,8 @@ public class BaseTyreController extends BaseController
             return "error/404";
         }
 
-        // 与 PDA 时间线接口保持同一个 service 返回结构；列表页传 tyreId，PDA 仍可传 keyParam。
-        Map resultMap = baseTyreService.pdaQueryTyreTimeLine(baseTyre);
+        // Web 详情抽屉在 PDA 原时间线外补充里程/花纹统计，避免改动老 PDA 接口返回契约。
+        Map resultMap = baseTyreService.selectTyreDetailForWeb(baseTyre);
         if (resultMap == null || resultMap.isEmpty()) {
             return "error/404";
         }
diff --git a/ruoyi-admin/src/main/resources/templates/tyre/car/car.html b/ruoyi-admin/src/main/resources/templates/tyre/car/car.html
index 801f4f6b..dd081d9d 100644
--- a/ruoyi-admin/src/main/resources/templates/tyre/car/car.html
+++ b/ruoyi-admin/src/main/resources/templates/tyre/car/car.html
@@ -152,7 +152,7 @@
     <div class="lifecycle-drawer-mask" id="lifecycleDrawerMask" onclick="closeLifecycleDrawer()"></div>
     <div class="lifecycle-drawer" id="lifecycleDrawer">
         <div class="lifecycle-drawer-header">
-            <div class="lifecycle-drawer-title" id="lifecycleDrawerTitle">车辆全生命周期</div>
+            <div class="lifecycle-drawer-title" id="lifecycleDrawerTitle">车辆详情</div>
             <button type="button" class="lifecycle-drawer-close" onclick="closeLifecycleDrawer()" title="关闭">×</button>
         </div>
         <iframe id="lifecycleFrame" src="about:blank"></iframe>
@@ -234,7 +234,7 @@
                 $.modal.alertWarning("车牌号为空，无法查看生命周期报表");
                 return;
             }
-            $("#lifecycleDrawerTitle").text("车辆全生命周期 - " + carNo);
+            $("#lifecycleDrawerTitle").text("车辆详情 - " + carNo);
             $("#lifecycleFrame").attr("src", prefix + "/lifecycle/view/" + encodeURIComponent(carNo));
             $("#lifecycleDrawerMask").show();
             $("#lifecycleDrawer").addClass("open");
@@ -247,6 +247,28 @@
             $("#lifecycleFrame").attr("src", "about:blank");
         }
 
+        function openMaintenanceOrderDetailTabFromLifecycle(orderId, orderNo) {
+            var normalizedOrderId = $.common.nullToStr(orderId);
+            if (!/^\d+$/.test(normalizedOrderId)) {
+                // 子 iframe 传来的主键只作为导航参数使用，父页再校验一次避免拼接异常详情地址。
+                $.modal.alertWarning("工单ID无效，无法打开维保工单详情");
+                return;
+            }
+            var tabTitle = buildMaintenanceOrderDetailTitle(orderNo);
+            // 页签必须由车辆列表所在主 iframe 发起，RuoYi 才能把详情页挂到后台主框架，而不是抽屉 iframe 内部。
+            $.modal.openTab(tabTitle, ctx + "tyre/order/edit/" + encodeURIComponent(normalizedOrderId));
+            closeLifecycleDrawer();
+        }
+
+        function buildMaintenanceOrderDetailTitle(orderNo) {
+            var text = $.common.nullToStr(orderNo);
+            if (!text || text === "-") {
+                return "维保工单详情";
+            }
+            // 页签标题不承载 HTML，去掉尖括号可避免异常工单号影响主框架页签 DOM。
+            return "维保工单详情 - " + text.replace(/[<>]/g, "");
+        }
+
         function escapeHtml(value) {
             return String(value)
                 .replace(/&/g, "&amp;")
diff --git a/ruoyi-admin/src/main/resources/templates/tyre/car/lifecycle.html b/ruoyi-admin/src/main/resources/templates/tyre/car/lifecycle.html
index 991706b7..3e19bbce 100644
--- a/ruoyi-admin/src/main/resources/templates/tyre/car/lifecycle.html
+++ b/ruoyi-admin/src/main/resources/templates/tyre/car/lifecycle.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html lang="zh" xmlns:th="http://www.thymeleaf.org">
 <head>
-    <th:block th:include="include :: header('车辆全生命周期')" />
+    <th:block th:include="include :: header('车辆详情')" />
     <style>
         .detail-shell {
             padding: 15px;
@@ -187,8 +187,8 @@
 
         .compare-tyre-card {
             position: relative;
-            width: 66px;
-            min-height: 126px;
+            width: 90px;
+            min-height: 174px;
             padding: 24px 6px 8px;
             border-radius: 8px 8px 16px 16px;
             background: #2f4050;
@@ -432,7 +432,8 @@
     </div>
 
     <div class="row">
-        <div class="col-lg-4 col-md-5 col-sm-12">
+        <!-- 暂时隐藏基础信息与当前装车轮胎，避免车辆详情对话框出现左右分栏导致主视图宽度不足。 -->
+        <!--<div class="col-lg-4 col-md-5 col-sm-12">
             <div class="info-card">
                 <div class="section-title"><i class="fa fa-bookmark"></i>基本信息</div>
                 <table class="info-table" id="vehicleInfo"></table>
@@ -444,11 +445,11 @@
                     <div class="text-center text-muted-dash" style="padding: 40px 0;">正在加载...</div>
                 </div>
             </div>
-        </div>
+        </div>-->
 
-        <div class="col-lg-8 col-md-7 col-sm-12">
+        <div class="col-lg-12 col-md-12 col-sm-12">
             <div class="info-card">
-                <div class="section-title"><i class="fa fa-wrench"></i>最近一次维保</div>
+                <div class="section-title"><i class="fa fa-wrench"></i>轮位视图</div>
                 <div id="latestMaintenance">
                     <div class="text-center text-muted-dash" style="padding: 48px 0;">正在加载...</div>
                 </div>
@@ -456,12 +457,12 @@
 
             <div class="timeline-card">
                 <div class="timeline-header">
-                    <span class="title clickable-title" onclick="goMaintenanceList()">保养信息</span>
-                    <span class="mini-tip">按时间倒序展示维保工单</span>
+                    <span class="title">生命周期</span>
+                    <span class="mini-tip">按时间倒序展示维保工单，点击记录打开维保工单详情页签</span>
                 </div>
                 <ul class="life-list" id="timelineList"></ul>
                 <div class="text-center text-muted-dash" id="emptyTimeline" style="display: none; padding: 80px 0;">
-                    暂无保养信息
+                    暂无生命周期
                 </div>
             </div>
         </div>
@@ -472,11 +473,11 @@
 <script th:inline="javascript">
     var prefix = ctx + "tyre/car";
     var carNo = $("#carNo").val();
-    var POSITION_ORDER = ["左前轮", "右前轮", "左外轮", "左内轮", "右内轮", "右外轮"];
+    var POSITION_ORDER = ["左前轮", "右前轮", "右内轮", "右外轮", "左内轮", "左外轮"];
 
     $(function () {
         loadLifecycle();
-        loadLatestMaintenance();
+        loadWheelPositionView();
         // 兜底关闭父窗口 loading，避免 iframe 加载时序导致遮罩残留。
         if (window.parent && window.parent !== window && window.parent.$ && window.parent.$.modal) {
             window.parent.$.modal.closeLoading();
@@ -491,20 +492,21 @@
             }
             var data = result.data || {};
             renderSummary(data);
-            renderVehicleInfo(data.car || {});
-            renderMountedTyres(data.mountedTyres || []);
+            // 基本信息与当前装车轮胎已从页面隐藏，保留汇总和生命周期即可让主内容与对话框等宽。
+            // renderVehicleInfo(data.car || {});
+            // renderMountedTyres(data.mountedTyres || []);
             // 维保历史已合并到生命周期聚合接口，页面不再额外调用独立列表接口，避免同一车牌重复查数。
             renderTimeline(data.maintenanceList || []);
         });
     }
 
-    function loadLatestMaintenance() {
+    function loadWheelPositionView() {
         $.get(prefix + "/lifecycle/" + encodeURIComponent(carNo) + "/latest-maintenance", function (result) {
             if (result.code != web_status.SUCCESS) {
-                $("#latestMaintenance").html('<div class="text-center text-muted-dash" style="padding: 48px 0;">维保对比加载失败</div>');
+                $("#latestMaintenance").html('<div class="text-center text-muted-dash" style="padding: 48px 0;">轮位视图加载失败</div>');
                 return;
             }
-            renderLatestMaintenance(result.data || {});
+            renderWheelPositionView(result.data || []);
         });
     }
 
@@ -565,7 +567,12 @@
         $("#emptyTimeline").hide();
         var html = [];
         $.each(maintenanceRows, function (index, item) {
-            html.push('<li class="life-item">');
+            var orderId = item.orderId == null ? item.id : item.orderId;
+            // 生命周期页嵌在车辆抽屉 iframe 中，只把业务主键交给父页，由父页接管主框架页签与抽屉关闭。
+            html.push('<li class="life-item clickable-title" data-order-id="'
+                + encodeURIComponent(displayValue(orderId)) + '" data-order-no="'
+                + encodeURIComponent(displayValue(item.orderNo))
+                + '" onclick="openMaintenanceOrderDetail(this)" title="打开维保工单详情页签">');
             html.push('<span class="life-dot maintenance">维</span>');
             html.push('<div class="life-time">' + safeText(item.maintainDate) + '</div>');
             html.push('<div class="life-title">' + safeText(eventTitle(item)) + '</div>');
@@ -575,35 +582,13 @@
         $("#timelineList").html(html.join(""));
     }
 
-    function renderLatestMaintenance(data) {
-        var order = data.order;
-        if (!order) {
-            $("#latestMaintenance").html('<div class="text-center text-muted-dash" style="padding: 48px 0;">暂无维保记录</div>');
+    function renderWheelPositionView(rows) {
+        if (!rows || !rows.length) {
+            $("#latestMaintenance").html('<div class="text-center text-muted-dash" style="padding: 48px 0;">暂无轮位维护数据</div>');
             return;
         }
-
         var html = [];
-        html.push('<div class="maintenance-summary">');
-        html.push(metaCell("工单号", order.orderNo));
-        html.push(metaCell("维保类型", orderTypeFormatter(order.typeCode)));
-        html.push(metaCell("状态", statusFormatter(order.status)));
-        html.push(metaCell("维修站点", order.factoryName));
-        html.push(metaCell("保养日期", order.maintainDate));
-        html.push(metaCell("录入里程", order.inputMileage == null ? "-" : order.inputMileage + " km"));
-        html.push(metaCell("上次里程", order.lastMileage == null ? "-" : order.lastMileage + " km"));
-        if (order.description) {
-            html.push('<div>补充说明：' + safeText(order.description) + '</div>');
-        }
-        html.push('</div>');
-
-        html.push('<div class="maintenance-compare">');
-        html.push('<div class="maintenance-side"><div class="maintenance-side-title">维保前</div>');
-        html.push(renderCompareTyres(data.tireDetailsBefore || []));
-        html.push('</div>');
-        html.push('<div class="maintenance-side"><div class="maintenance-side-title">维保后</div>');
-        html.push(renderCompareTyres(data.tireDetailsAfter || []));
-        html.push('</div>');
-        html.push('</div>');
+        html.push(renderCompareTyres(rows));
         $("#latestMaintenance").html(html.join(""));
     }
 
@@ -615,10 +600,10 @@
         html.push(createTyreCard(data[1], "右前轮"));
         html.push('</div>');
         html.push('<div class="axle-row"><div class="axle-label">2</div>');
-        html.push(createTyreCard(data[2], "左外轮"));
-        html.push(createTyreCard(data[3], "左内轮"));
-        html.push(createTyreCard(data[4], "右内轮"));
-        html.push(createTyreCard(data[5], "右外轮"));
+        html.push(createTyreCard(data[2], "右内轮"));
+        html.push(createTyreCard(data[3], "右外轮"));
+        html.push(createTyreCard(data[4], "左内轮"));
+        html.push(createTyreCard(data[5], "左外轮"));
         html.push('</div>');
         return html.join("");
     }
@@ -637,7 +622,10 @@
                 spec: displayValue(item.spec),
                 dot: displayValue(item.dot),
                 depth: item.depth == null || item.depth === "" ? "-" : item.depth + " mm",
-                status: displayValue(item.status)
+                status: displayValue(item.status),
+                orderNo: displayValue(item.orderNo),
+                maintainDate: displayValue(item.maintainDate),
+                inputMileage: item.inputMileage == null ? "-" : item.inputMileage + " km"
             };
         });
         return result;
@@ -656,6 +644,9 @@
             '<div>' + safeText(tyre.spec) + '</div>',
             '<div>' + safeText(tyre.dot) + '</div>',
             '<div class="compare-depth">' + safeText(tyre.depth) + '</div>',
+            '<div>工单：' + safeText(tyre.orderNo) + '</div>',
+            '<div>日期：' + safeText(tyre.maintainDate) + '</div>',
+            '<div>里程：' + safeText(tyre.inputMileage) + '</div>',
             '</div>',
             '</div>'
         ].join("");
@@ -832,9 +823,26 @@
         return displayValue(value);
     }
 
-    function goMaintenanceList() {
-        // ctx 由 include.html 注入且自带尾斜杠，按项目既有写法直接拼接相对路径。
-        window.open(ctx + "tyre/order", "_blank");
+    function openMaintenanceOrderDetail(target) {
+        var orderId = decodeURIComponent($(target).attr("data-order-id") || "");
+        var orderNo = decodeURIComponent($(target).attr("data-order-no") || "");
+        if (!/^\d+$/.test(orderId)) {
+            // 没有有效工单主键时禁止拼接详情 URL，避免无意义请求或路径污染。
+            $.modal.alertWarning("该维保记录缺少有效工单ID，无法打开详情");
+            return;
+        }
+        // 生命周期页嵌在车辆列表抽屉 iframe 中，必须交给父页打开主框架页签并关闭抽屉。
+        if (window.parent && typeof window.parent.openMaintenanceOrderDetailTabFromLifecycle === "function") {
+            window.parent.openMaintenanceOrderDetailTabFromLifecycle(orderId, orderNo);
+            return;
+        }
+        // 兜底：若未来生命周期页被独立打开，仍按 RuoYi 页签方式进入对应工单详情。
+        $.modal.openTab(buildMaintenanceOrderDetailTitle(orderNo), ctx + "tyre/order/edit/" + encodeURIComponent(orderId));
+    }
+
+    function buildMaintenanceOrderDetailTitle(orderNo) {
+        var text = displayValue(orderNo);
+        return text == "-" ? "维保工单详情" : "维保工单详情 - " + text;
     }
 </script>
 </body>
diff --git a/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html b/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html
index a57ffdf3..35918300 100644
--- a/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html
+++ b/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html
@@ -277,10 +277,13 @@
 <body>
 <div class="detail-shell"
      th:with="resultBase=${resultMap['resultBase']},
-              recordWarehousingList=${resultMap['recordWarehousingList']},
-              recordTyreInstallList=${resultMap['recordTyreInstallList']},
-              bizMaintenanceOrder=${resultMap['bizMaintenanceOrder']},
-              bizOrderTireDetailList=${resultMap['bizMaintenanceOrder'] == null ? null : resultMap['bizMaintenanceOrder'].bizOrderTireDetailList}">
+               recordWarehousingList=${resultMap['recordWarehousingList']},
+               recordTyreInstallList=${resultMap['recordTyreInstallList']},
+               recordTyreMileageList=${resultMap['recordTyreMileageList']},
+               totalMileage=${resultMap['totalMileage']},
+               currentPatternDepth=${resultMap['currentPatternDepth']},
+               bizMaintenanceOrder=${resultMap['bizMaintenanceOrder']},
+               bizOrderTireDetailList=${resultMap['bizMaintenanceOrder'] == null ? null : resultMap['bizMaintenanceOrder'].bizOrderTireDetailList}">
     <div class="summary-panel">
         <div class="summary-main">
             <div>
@@ -316,14 +319,24 @@
                 <div class="info-label">轮胎花纹</div>
                 <div class="info-value" th:text="${#strings.isEmpty(resultBase.tyrePattern) ? '-' : resultBase.tyrePattern}">-</div>
             </div>
-            <div class="info-cell">
-                <div class="info-label">轮胎类别</div>
-                <div class="info-value" th:text="${#strings.isEmpty(resultBase.tyreType) ? '-' : @dict.getLabel('tyre_type', resultBase.tyreType)}">-</div>
-            </div>
+<!--            <div class="info-cell">-->
+<!--                <div class="info-label">轮胎类别</div>-->
+<!--                <div class="info-value" th:text="${#strings.isEmpty(resultBase.tyreType) ? '-' : @dict.getLabel('tyre_type', resultBase.tyreType)}">-</div>-->
+<!--            </div>-->
             <div class="info-cell">
                 <div class="info-label">初始花纹深度</div>
                 <div class="info-value" th:text="${#strings.isEmpty(resultBase.patternDepth) ? '-' : resultBase.patternDepth + ' mm'}">-</div>
             </div>
+            <div class="info-cell">
+                <div class="info-label">轮胎总行驶里程</div>
+                <!-- 后端按 record_tyre_mileage.mileage 累加；空值说明无有效里程段，不在前端猜测。 -->
+                <div class="info-value" th:text="${#strings.isEmpty(totalMileage) ? '-' : totalMileage + ' km'}">-</div>
+            </div>
+            <div class="info-cell">
+                <div class="info-label">当前剩余花纹</div>
+                <!-- 当前花纹取装卸记录最新一条非空 pattern_depth，保持与装卸业务录入口径一致。 -->
+                <div class="info-value" th:text="${#strings.isEmpty(currentPatternDepth) ? '-' : currentPatternDepth + ' mm'}">-</div>
+            </div>
             <div class="info-cell">
                 <div class="info-label">标准气压</div>
                 <div class="info-value" th:text="${#strings.isEmpty(resultBase.pressure) ? '-' : resultBase.pressure}">-</div>
@@ -374,6 +387,7 @@
         <div class="life-summary">
             <span class="life-count" th:text="${'出入库记录：' + (#lists.isEmpty(recordWarehousingList) ? 0 : #lists.size(recordWarehousingList))}">出入库记录：0</span>
             <span class="life-count" th:text="${'装卸车记录：' + (#lists.isEmpty(recordTyreInstallList) ? 0 : #lists.size(recordTyreInstallList))}">装卸车记录：0</span>
+            <span class="life-count" th:text="${'里程使用记录：' + (#lists.isEmpty(recordTyreMileageList) ? 0 : #lists.size(recordTyreMileageList))}">里程使用记录：0</span>
             <span class="life-count" th:text="${'维保工单：' + (bizMaintenanceOrder == null ? 0 : 1)}">维保工单：0</span>
             <span class="life-count" th:if="${bizMaintenanceOrder != null}" th:text="${'维保轮胎明细：' + (#lists.isEmpty(bizOrderTireDetailList) ? 0 : #lists.size(bizOrderTireDetailList))}">维保轮胎明细：0</span>
         </div>
@@ -392,6 +406,7 @@
                         <div th:text="${#strings.isEmpty(item.tyreRfid) ? 'RFID：-' : 'RFID：' + item.tyreRfid}">RFID：-</div>
                         <div th:text="${#strings.isEmpty(item.tyreBrand) ? '品牌：-' : '品牌：' + item.tyreBrand}">品牌：-</div>
                         <div th:text="${#strings.isEmpty(item.tyreModel) ? '规格：-' : '规格：' + item.tyreModel}">规格：-</div>
+                        <div th:text="${#strings.isEmpty(item.deptName) ? '入库场站：-' : '入库场站：' + item.deptName}">入库场站：-</div>
                         <div class="life-remark" th:if="${!#strings.isEmpty(item.remark)}" th:text="${'备注：' + item.remark}">备注：-</div>
                     </div>
                 </li>
@@ -413,15 +428,42 @@
                         <div th:text="${#strings.isEmpty(item.createBy) ? '操作人：-' : '操作人：' + item.createBy}">操作人：-</div>
                         <div th:text="${#strings.isEmpty(item.carNo) ? '车辆：-' : '车辆：' + item.carNo}">车辆：-</div>
                         <div th:text="${#strings.isEmpty(item.wheelPostion) ? '轮位：-' : '轮位：' + item.wheelPostion}">轮位：-</div>
-                        <div th:text="${item.mileage == null ? '里程：-' : '里程：' + item.mileage + ' km'}">里程：-</div>
+                        <div th:text="${item.mileage == null ? '车辆里程：-' : '车辆里程：' + item.mileage + ' km'}">车辆里程：-</div>
                         <div th:text="${#strings.isEmpty(item.patternDepth) ? '花纹深度：-' : '花纹深度：' + item.patternDepth + ' mm'}">花纹深度：-</div>
-                        <div th:text="${#strings.isEmpty(item.carTeam) ? '车队：-' : '车队：' + item.carTeam}">车队：-</div>
+                        <!-- 三项归属已由装卸记录查询返回，缺哪项省略哪项，避免历史脏数据展示整行占位。 -->
+                        <div th:if="${!#strings.isEmpty(item.team) or !#strings.isEmpty(item.company) or !#strings.isEmpty(item.carTeam)}">
+                            <span th:if="${!#strings.isEmpty(item.team)}" th:text="${'修理厂：' + item.team}">修理厂：-</span>
+                            <span th:if="${!#strings.isEmpty(item.company)}" th:text="${' / 分公司：' + item.company}"> / 分公司：-</span>
+                            <span th:if="${!#strings.isEmpty(item.carTeam)}" th:text="${' / 车队：' + item.carTeam}"> / 车队：-</span>
+                        </div>
                         <div class="life-remark" th:if="${!#strings.isEmpty(item.remark)}" th:text="${'备注：' + item.remark}">备注：-</div>
                     </div>
                 </li>
             </ul>
         </div>
 
+        <div class="life-section" th:if="${!#lists.isEmpty(recordTyreMileageList)}">
+            <div class="life-section-title">里程使用记录</div>
+            <ul class="life-list">
+                <li class="life-item" th:each="seg : ${recordTyreMileageList}">
+                    <span class="life-dot"></span>
+                    <div class="life-title-row">
+                        <div class="life-title" th:text="${seg.mileage == null ? '单程行驶里程：-' : '单程行驶里程：' + seg.mileage + ' km'}">单程行驶里程：-</div>
+                        <div class="life-time" th:text="${seg.startTime == null ? '-' : #dates.format(seg.startTime, 'yyyy-MM-dd HH:mm:ss')}">-</div>
+                    </div>
+                    <div class="life-meta">
+                        <div th:text="${seg.endTime == null ? '卸下时间：-' : '卸下时间：' + #dates.format(seg.endTime, 'yyyy-MM-dd HH:mm:ss')}">卸下时间：-</div>
+                        <div th:text="${seg.mileage == null ? '该程行驶里程：-' : '该程行驶里程：' + seg.mileage + ' km'}">该程行驶里程：-</div>
+                        <div th:text="${#strings.isEmpty(seg.patternDepth) ? '本程剩余花纹：-' : '本程剩余花纹：' + seg.patternDepth + ' mm'}">本程剩余花纹：-</div>
+                        <div th:text="${#strings.isEmpty(seg.wearDepth) ? '该程花纹磨损：-' : '该程花纹磨损：' + seg.wearDepth + ' mm'}">该程花纹磨损：-</div>
+                        <div th:text="${#strings.isEmpty(seg.createBy) ? '记录人：-' : '记录人：' + seg.createBy}">记录人：-</div>
+                        <div th:text="${seg.createTime == null ? '记录时间：-' : '记录时间：' + #dates.format(seg.createTime, 'yyyy-MM-dd HH:mm:ss')}">记录时间：-</div>
+                        <div class="life-remark" th:if="${!#strings.isEmpty(seg.remark)}" th:text="${'备注：' + seg.remark}">备注：-</div>
+                    </div>
+                </li>
+            </ul>
+        </div>
+
         <div class="life-section" th:if="${bizMaintenanceOrder != null}">
             <div class="life-section-title">维保工单</div>
             <ul class="life-list">
@@ -462,6 +504,7 @@
                         <div th:text="${#strings.isEmpty(bizMaintenanceOrder.updateBy) ? '完成操作人：-' : '完成操作人：' + bizMaintenanceOrder.updateBy}">完成操作人：-</div>
                         <div class="life-remark" th:if="${!#strings.isEmpty(bizMaintenanceOrder.description)}" th:text="${'补充说明：' + bizMaintenanceOrder.description}">补充说明：-</div>
                         <div class="life-remark" th:if="${!#strings.isEmpty(bizMaintenanceOrder.remark)}" th:text="${'备注：' + bizMaintenanceOrder.remark}">备注：-</div>
+                        <div class="life-remark">如该工单涉及多条轮胎明细，请以维保工单详情页为完整明细来源。</div>
 
                         <div class="tire-detail-list" th:if="${!#lists.isEmpty(bizOrderTireDetailList)}">
                             <div class="tire-detail-title">轮胎执行明细</div>
@@ -481,7 +524,7 @@
             </ul>
         </div>
 
-        <div class="empty-life" th:if="${#lists.isEmpty(recordWarehousingList) and #lists.isEmpty(recordTyreInstallList) and bizMaintenanceOrder == null}">
+        <div class="empty-life" th:if="${#lists.isEmpty(recordWarehousingList) and #lists.isEmpty(recordTyreInstallList) and #lists.isEmpty(recordTyreMileageList) and bizMaintenanceOrder == null}">
             暂无生命周期记录
         </div>
     </div>
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/domain/CarLatestMaintenanceDTO.java b/ruoyi-system/src/main/java/com/ruoyi/system/domain/CarLatestMaintenanceDTO.java
deleted file mode 100644
index c1f04d55..00000000
--- a/ruoyi-system/src/main/java/com/ruoyi/system/domain/CarLatestMaintenanceDTO.java
+++ /dev/null
@@ -1,57 +0,0 @@
-package com.ruoyi.system.domain;
-
-import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-/**
- * 车辆最近一次维保对比DTO。
- * <p>
- * 用于车辆生命周期抽屉展示最近一条维保工单的“维保前/维保后”轮位快照。
- * 明细直接复用工单详情页既有 Map 结构，避免新建一套字段口径。
- * </p>
- */
-public class CarLatestMaintenanceDTO implements Serializable
-{
-    private static final long serialVersionUID = 1L;
-
-    /** 最近一次维保工单概要；车辆无维保记录时为空。 */
-    private CarMaintenanceLifecycleDTO order;
-
-    /** 维保前轮胎布局，字段同 BizOrderTireDetailMapper.selectBaseTrieInstall / selectBizOrderTireDetail。 */
-    private List<Map> tireDetailsBefore = new ArrayList<>();
-
-    /** 维保后轮胎布局，字段同 BizOrderTireDetailMapper.selectBizOrderTireDetail。 */
-    private List<Map> tireDetailsAfter = new ArrayList<>();
-
-    public CarMaintenanceLifecycleDTO getOrder()
-    {
-        return order;
-    }
-
-    public void setOrder(CarMaintenanceLifecycleDTO order)
-    {
-        this.order = order;
-    }
-
-    public List<Map> getTireDetailsBefore()
-    {
-        return tireDetailsBefore;
-    }
-
-    public void setTireDetailsBefore(List<Map> tireDetailsBefore)
-    {
-        this.tireDetailsBefore = tireDetailsBefore;
-    }
-
-    public List<Map> getTireDetailsAfter()
-    {
-        return tireDetailsAfter;
-    }
-
-    public void setTireDetailsAfter(List<Map> tireDetailsAfter)
-    {
-        this.tireDetailsAfter = tireDetailsAfter;
-    }
-}
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BizOrderTireDetailMapper.java b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BizOrderTireDetailMapper.java
index 7276ffa2..69926499 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BizOrderTireDetailMapper.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BizOrderTireDetailMapper.java
@@ -4,6 +4,7 @@ import java.util.List;
 import java.util.Map;
 
 import com.ruoyi.system.domain.BizOrderTireDetail;
+import org.apache.ibatis.annotations.Param;
 
 /**
  * 工单轮胎执行明细Mapper接口
@@ -64,4 +65,12 @@ public interface BizOrderTireDetailMapper
     List<Map> selectBizOrderTireDetail(BizOrderTireDetail bizOrderTireDetail);
 
     List<Map> selectBaseTrieInstall(String plateNumber);
+
+    /**
+     * 查询车辆全部维保轮胎明细，Service 层按轮位截取最新一条。
+     *
+     * @param plateNumber 车牌号
+     * @return 车辆维保轮胎明细列表
+     */
+    List<Map> selectCarMaintenanceTireDetails(@Param("plateNumber") String plateNumber);
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseCarLifecycleService.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseCarLifecycleService.java
index b6533a08..9ded12d5 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseCarLifecycleService.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseCarLifecycleService.java
@@ -1,8 +1,8 @@
 package com.ruoyi.system.service;
 
 import java.util.List;
+import java.util.Map;
 import com.ruoyi.system.domain.CarCheckLifecycleDTO;
-import com.ruoyi.system.domain.CarLatestMaintenanceDTO;
 import com.ruoyi.system.domain.CarLifecycleDTO;
 import com.ruoyi.system.domain.CarLifecycleQuery;
 import com.ruoyi.system.domain.CarMileageLifecycleDTO;
@@ -46,10 +46,10 @@ public interface IBaseCarLifecycleService
     public List<CarMileageLifecycleDTO> selectMileageList(CarLifecycleQuery query);
 
     /**
-     * 查询车辆最近一次维保工单的维保前后轮胎对比。
+     * 查询车辆 6 个轮位各自最新一条维护数据。
      *
      * @param query 生命周期查询参数
-     * @return 最近一次维保对比数据；无维保时返回空壳DTO
+     * @return 固定轮位维护数据列表
      */
-    public CarLatestMaintenanceDTO selectLatestMaintenance(CarLifecycleQuery query);
+    public List<Map> selectLatestWheelPositionMaintenance(CarLifecycleQuery query);
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseTyreService.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseTyreService.java
index 4e6de736..7e3dd4cc 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseTyreService.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/IBaseTyreService.java
@@ -86,4 +86,12 @@ public interface IBaseTyreService
 
 
     Map pdaQueryTyreTimeLine(BaseTyre baseTyre);
+
+    /**
+     * 查询 Web 详情抽屉数据。
+     * <p>
+     * 先复用 PDA 原时间线结构，再补充 Web 专用的里程/花纹统计字段，避免影响老 PDA 客户端。
+     * </p>
+     */
+    Map selectTyreDetailForWeb(BaseTyre baseTyre);
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseCarLifecycleServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseCarLifecycleServiceImpl.java
index 9c4aa11c..91ebb5f7 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseCarLifecycleServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseCarLifecycleServiceImpl.java
@@ -1,15 +1,16 @@
 package com.ruoyi.system.service.impl;
 
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import com.ruoyi.common.annotation.DataScope;
 import com.ruoyi.common.exception.ServiceException;
 import com.ruoyi.common.utils.StringUtils;
-import com.ruoyi.system.domain.BizMaintenanceOrder;
-import com.ruoyi.system.domain.BizOrderTireDetail;
 import com.ruoyi.system.domain.CarCheckLifecycleDTO;
-import com.ruoyi.system.domain.CarLatestMaintenanceDTO;
 import com.ruoyi.system.domain.CarLifecycleDTO;
 import com.ruoyi.system.domain.CarLifecycleQuery;
 import com.ruoyi.system.domain.CarLifecycleSummaryDTO;
@@ -17,7 +18,6 @@ import com.ruoyi.system.domain.CarMaintenanceLifecycleDTO;
 import com.ruoyi.system.domain.CarMileageLifecycleDTO;
 import com.ruoyi.system.domain.CarTyreInstallLifecycleDTO;
 import com.ruoyi.system.mapper.BaseCarLifecycleMapper;
-import com.ruoyi.system.mapper.BizMaintenanceOrderMapper;
 import com.ruoyi.system.mapper.BizOrderTireDetailMapper;
 import com.ruoyi.system.service.IBaseCarLifecycleService;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -34,11 +34,13 @@ import org.springframework.stereotype.Service;
 @Service
 public class BaseCarLifecycleServiceImpl implements IBaseCarLifecycleService
 {
-    @Autowired
-    private BaseCarLifecycleMapper baseCarLifecycleMapper;
+    /**
+     * 生命周期轮位视图固定按 WheelPosition 字典的 6 个业务轮位展示。
+     */
+    private static final List<String> WHEEL_POSITION_ORDER = Arrays.asList("左前轮", "右前轮", "右内轮", "右外轮", "左内轮", "左外轮");
 
     @Autowired
-    private BizMaintenanceOrderMapper bizMaintenanceOrderMapper;
+    private BaseCarLifecycleMapper baseCarLifecycleMapper;
 
     @Autowired
     private BizOrderTireDetailMapper bizOrderTireDetailMapper;
@@ -63,16 +65,27 @@ public class BaseCarLifecycleServiceImpl implements IBaseCarLifecycleService
     @DataScope(deptAlias = "d", userAlias = "u")
     public CarLifecycleDTO selectLifecycle(CarLifecycleQuery query)
     {
+        // 1. 校验权限并回填 carId，确保后续查询已授权且使用精确主键
         CarLifecycleSummaryDTO car = buildAuthorizedCar(query);
+        // 2. 初始化生命周期 DTO 容器
         CarLifecycleDTO dto = new CarLifecycleDTO();
+        // 3. 写入车辆主档概要信息
         dto.setCar(car);
+        // 4. 查询当前装车的轮胎列表
         dto.setMountedTyres(baseCarLifecycleMapper.selectMountedTyres(query));
+        // 5. 查询最近发生的事件时间线
         dto.setRecentEvents(baseCarLifecycleMapper.selectRecentEvents(query));
+        // 6. 查询维保工单历史列表
         dto.setMaintenanceList(baseCarLifecycleMapper.selectMaintenanceList(query));
+        // 7. 统计装卸记录总条数
         dto.setInstallCount(baseCarLifecycleMapper.countInstallRecords(query));
+        // 8. 统计维保工单总条数
         dto.setMaintenanceCount(baseCarLifecycleMapper.countMaintenanceOrders(query));
+        // 9. 统计质检记录总条数
         dto.setCheckCount(baseCarLifecycleMapper.countCheckRecords(query));
+        // 10. 统计里程记录总条数
         dto.setMileageCount(baseCarLifecycleMapper.countMileageRecords(query));
+        // 11. 返回聚合后的生命周期数据
         return dto;
     }
 
@@ -96,50 +109,51 @@ public class BaseCarLifecycleServiceImpl implements IBaseCarLifecycleService
     }
 
     /**
-     * 查询车辆最近一次维保的前后轮胎对比。
+     * 查询车辆 6 个轮位各自最新一条维护数据。
      * <p>
-     * 先走 buildAuthorizedCar 统一权限闸口，再复用维保列表排序和工单详情页的轮胎明细SQL，避免重复造查询口径。
+     * 轮位视图只服务车辆生命周期抽屉，不改维保工单详情页；SQL 拉取该车全部维保轮胎明细，
+     * Java 按固定轮位顺序截取每个轮位第一条，避免在 SQL 中使用 TOP / LIMIT / ROW_NUMBER 等方言差异写法。
      * </p>
      */
     @Override
     @DataScope(deptAlias = "d", userAlias = "u")
-    public CarLatestMaintenanceDTO selectLatestMaintenance(CarLifecycleQuery query)
+    public List<Map> selectLatestWheelPositionMaintenance(CarLifecycleQuery query)
     {
         buildAuthorizedCar(query);
-        CarLatestMaintenanceDTO dto = new CarLatestMaintenanceDTO();
-        List<CarMaintenanceLifecycleDTO> maintenanceList = baseCarLifecycleMapper.selectMaintenanceList(query);
-        if (maintenanceList == null || maintenanceList.isEmpty())
+        List<Map> detailRows = bizOrderTireDetailMapper.selectCarMaintenanceTireDetails(query.getCarNo());
+        Map<String, Map> latestByPosition = new LinkedHashMap<>();
+        Set<String> expectedPositions = new HashSet<>(WHEEL_POSITION_ORDER);
+        if (detailRows != null)
         {
-            return dto;
-        }
-
-        CarMaintenanceLifecycleDTO latest = maintenanceList.get(0);
-        dto.setOrder(latest);
-        if (latest.getOrderId() != null)
-        {
-            BizOrderTireDetail afterQuery = new BizOrderTireDetail();
-            afterQuery.setOrderId(latest.getOrderId());
-            dto.setTireDetailsAfter(emptyIfNull(bizOrderTireDetailMapper.selectBizOrderTireDetail(afterQuery)));
-        }
-
-        if (latest.getOrderId() != null && !StringUtils.isBlank(latest.getPlateNumber()))
-        {
-            BizMaintenanceOrder probe = new BizMaintenanceOrder();
-            probe.setOrderId(latest.getOrderId());
-            // 上一条工单SQL同时依赖 orderId 与 plateNumber，缺车牌会导致无法命中上一条记录。
-            probe.setPlateNumber(latest.getPlateNumber());
-            BizMaintenanceOrder previousOrder = bizMaintenanceOrderMapper.selectBizMaintenanceOrderByOrderIdBefore(probe);
-            if (previousOrder != null && previousOrder.getOrderId() != null)
+            for (Map row : detailRows)
             {
-                BizOrderTireDetail beforeQuery = new BizOrderTireDetail();
-                beforeQuery.setOrderId(previousOrder.getOrderId());
-                dto.setTireDetailsBefore(emptyIfNull(bizOrderTireDetailMapper.selectBizOrderTireDetail(beforeQuery)));
-                return dto;
+                String position = row == null || row.get("position") == null ? null : String.valueOf(row.get("position"));
+                if (!expectedPositions.contains(position) || latestByPosition.containsKey(position))
+                {
+                    continue;
+                }
+                latestByPosition.put(position, row);
             }
         }
 
-        dto.setTireDetailsBefore(emptyIfNull(bizOrderTireDetailMapper.selectBaseTrieInstall(latest.getPlateNumber())));
-        return dto;
+        List<Map> result = new ArrayList<>();
+        for (String position : WHEEL_POSITION_ORDER)
+        {
+            Map row = latestByPosition.get(position);
+            if (row == null)
+            {
+                row = new LinkedHashMap();
+                row.put("position", position);
+                row.put("status", "empty");
+            }
+            else if (row.get("status") == null)
+            {
+                // 维保后视图只关心该轮位最后一次维护快照；状态为空按普通维护数据展示。
+                row.put("status", "normal");
+            }
+            result.add(row);
+        }
+        return result;
     }
 
     /**
@@ -223,21 +237,21 @@ public class BaseCarLifecycleServiceImpl implements IBaseCarLifecycleService
      */
     private void validateQuery(CarLifecycleQuery query)
     {
+        // 1. 校验查询对象和车牌号不能为空
         if (query == null || StringUtils.isBlank(query.getCarNo()))
         {
             throw new ServiceException("车牌号不能为空");
         }
+        // 2. 去除车牌号前后空格，规范化输入
         String carNo = query.getCarNo().trim();
+        // 3. 校验车牌号长度不超过数据库字段定义（varchar(50)）
         if (carNo.length() > 50)
         {
             // base_car.car_no 当前按 varchar(50) 设计，超长路径参数直接拒绝更利于定位异常调用。
             throw new ServiceException("车牌号长度超过限制");
         }
+        // 4. 将规范化后的车牌号写回查询对象，供后续SQL使用
         query.setCarNo(carNo);
     }
 
-    private List<Map> emptyIfNull(List<Map> list)
-    {
-        return list == null ? new ArrayList<>() : list;
-    }
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java
index c4ec6e0b..4e01403f 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java
@@ -18,18 +18,15 @@ import com.ruoyi.system.mapper.BaseTyreMapper;
 import com.ruoyi.system.mapper.RecordTyreInstallMapper;
 import com.ruoyi.system.mapper.RecordWarehousingMapper;
 import com.ruoyi.system.service.IBaseTyreService;
-import com.sun.jna.platform.mac.SystemB;
+import com.ruoyi.system.util.TyreLifecycleCalc;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.math.BigDecimal;
+import java.util.*;
 import java.util.stream.Collectors;
 
 import static com.ruoyi.common.utils.ShiroUtils.getLoginName;
@@ -57,6 +54,10 @@ public class BaseTyreServiceImpl implements IBaseTyreService
     @Autowired
     private BizMaintenanceOrderMapper bizMaintenanceOrderMapper;
     private static final Logger log = LoggerFactory.getLogger(BaseTyreServiceImpl.class);
+
+    @Autowired
+    private RecordTyreMileageMapper recordTyreMileageMapper;
+
     /**
      * 查询轮胎基础信息
      * 
@@ -304,4 +305,122 @@ public class BaseTyreServiceImpl implements IBaseTyreService
             return map;
         }
     }
+
+    @Override
+    public Map selectTyreDetailForWeb(BaseTyre baseTyre)
+    {
+        // 1. 调用 PDA 查询方法获取轮胎时间线基础数据（包含入库、安装等流转记录）
+        Map map = pdaQueryTyreTimeLine(baseTyre);
+        // 2. 若基础数据为空，直接返回，避免后续空指针异常
+        if (map == null || map.isEmpty())
+        {
+            return map;
+        }
+
+        // 3. 初始化里程相关字段默认值，确保返回结构完整
+        map.put("recordTyreMileageList", new ArrayList<>());
+        map.put("totalMileage", null);
+        map.put("currentPatternDepth", null);
+
+        // 4. 获取轮胎基础信息对象，并校验类型正确性
+        Object resultBaseObj = map.get("resultBase");
+        if (!(resultBaseObj instanceof BaseTyre))
+        {
+            return map;
+        }
+
+        // 5. 提取轮胎实体和 RFID（EPC）编码
+        BaseTyre resultBase = (BaseTyre) resultBaseObj;
+        String tyreRfid = resultBase.getTyreEpc();
+        // 6. RFID 为空时清空流转列表并返回，避免展示错误数据
+        if (StringUtils.isBlank(tyreRfid))
+        {
+            // 原 PDA 方法历史上会在 EPC 为空时按空条件查流转表；Web 详情必须置空，避免误把全量历史展示给用户。
+            map.put("recordWarehousingList", new ArrayList<>());
+            map.put("recordTyreInstallList", new ArrayList<>());
+            return map;
+        }
+
+        // 7. 转换安装记录列表并计算当前花纹深度
+        List<RecordTyreInstall> installList = castInstallList(map.get("recordTyreInstallList"));
+        map.put("currentPatternDepth", TyreLifecycleCalc.currentPatternDepth(installList));
+
+        // 8. 构造里程查询对象并执行查询
+        RecordTyreMileage query = new RecordTyreMileage();
+        query.setTyreRfid(tyreRfid);
+        List<RecordTyreMileage> mileageList = recordTyreMileageMapper.selectRecordTyreMileageList(query);
+        // 9. 若无里程记录，直接返回当前已组装的数据
+        if (mileageList == null || mileageList.isEmpty())
+        {
+            return map;
+        }
+
+        // 10. 解析初始花纹深度，并计算各段磨损量
+        BigDecimal initialDepth = TyreLifecycleCalc.parseDepth(resultBase.getPatternDepth());
+        Map<Long, String> wearMap = TyreLifecycleCalc.computeSegmentWears(initialDepth, mileageList);
+        // 11. 初始化总里程累加器和标志位
+        BigDecimal totalMileage = BigDecimal.ZERO;
+        boolean hasMileage = false;
+
+        // 12. 按开始时间降序、ID 降序对里程记录排序，确保时间线正确
+        mileageList.sort(Comparator
+                .comparing(RecordTyreMileage::getStartTime, Comparator.nullsLast(Comparator.reverseOrder()))
+                .thenComparing(RecordTyreMileage::getId, Comparator.nullsLast(Comparator.reverseOrder())));
+
+        // 13. 遍历里程记录，构造前端展示用的 VO 列表
+        List<Map<String, Object>> mileageVoList = new ArrayList<>(mileageList.size());
+        for (RecordTyreMileage item : mileageList)
+        {
+            Map<String, Object> vo = new HashMap<>();
+            vo.put("id", item.getId()); // 记录主键
+            vo.put("tyreRfid", item.getTyreRfid()); // 轮胎 RFID
+            vo.put("startTime", item.getStartTime()); // 里程开始时间
+            vo.put("endTime", item.getEndTime()); // 里程结束时间
+            vo.put("mileage", item.getMileage()); // 行驶里程数
+            vo.put("patternDepth", item.getPatternDepth()); // 当时花纹深度
+            vo.put("createBy", item.getCreateBy()); // 创建人
+            vo.put("createTime", item.getCreateTime()); // 创建时间
+            vo.put("updateBy", item.getUpdateBy()); // 更新人
+            vo.put("updateTime", item.getUpdateTime()); // 更新时间
+            vo.put("remark", item.getRemark()); // 备注信息
+            vo.put("tyreBrand", item.getTyreBrand()); // 轮胎品牌
+            vo.put("tyreNo", item.getTyreNo()); // 轮胎编号
+            vo.put("wearDepth", item.getId() == null ? null : wearMap.get(item.getId())); // 磨损深度（从计算结果取）
+            // 14. 累加有效里程值（mileage 为 Long 类型，表示该段 km 差值）
+            if (item.getMileage() != null)
+            {
+                // mileage 实体类型是 Long，表示该程 km 差值，直接累加可避免 varchar 花纹解析逻辑误入里程路径。
+                totalMileage = totalMileage.add(BigDecimal.valueOf(item.getMileage()));
+                hasMileage = true;
+            }
+            mileageVoList.add(vo);
+        }
+
+        // 15. 将组装好的里程列表和总里程写入返回 Map
+        map.put("recordTyreMileageList", mileageVoList);
+        map.put("totalMileage", hasMileage ? totalMileage.stripTrailingZeros().toPlainString() : null);
+        // 16. 返回完整的轮胎详情数据
+        return map;
+    }
+
+    private List<RecordTyreInstall> castInstallList(Object value)
+    {
+        // 1. 初始化空结果列表，用于存放转换后的安装记录
+        List<RecordTyreInstall> result = new ArrayList<>();
+        // 2. 校验入参是否为 List 类型，若不是则直接返回空列表
+        if (!(value instanceof List<?>))
+        {
+            return result;
+        }
+        // 3. 遍历列表，筛选出 RecordTyreInstall 类型的元素并加入结果
+        for (Object item : (List<?>) value)
+        {
+            if (item instanceof RecordTyreInstall)
+            {
+                result.add((RecordTyreInstall) item);
+            }
+        }
+        // 4. 返回类型安全的安装记录列表
+        return result;
+    }
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/util/TyreLifecycleCalc.java b/ruoyi-system/src/main/java/com/ruoyi/system/util/TyreLifecycleCalc.java
index ae5f5778..55ac3fe7 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/util/TyreLifecycleCalc.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/util/TyreLifecycleCalc.java
@@ -24,6 +24,7 @@ public final class TyreLifecycleCalc
 
     private TyreLifecycleCalc()
     {
+        // 私有构造器，禁止外部实例化，工具类保持静态方法调用
     }
 
     /**
@@ -34,22 +35,28 @@ public final class TyreLifecycleCalc
      */
     public static String currentPatternDepth(List<RecordTyreInstall> installRecords)
     {
+        // 1. 空列表校验，无记录时返回 null
         if (installRecords == null || installRecords.isEmpty())
         {
             return null;
         }
+        // 2. 初始化最新记录变量
         RecordTyreInstall latest = null;
+        // 3. 遍历所有装卸记录，寻找最新一条有效花纹深度
         for (RecordTyreInstall item : installRecords)
         {
+            // 跳过空对象或无花纹深度的记录
             if (item == null || isBlank(item.getPatternDepth()))
             {
                 continue;
             }
+            // 4. 比较时间先后，保留更晚的记录
             if (latest == null || after(item, latest))
             {
                 latest = item;
             }
         }
+        // 5. 返回最新记录的花纹深度，去除前后空格
         return latest == null ? null : latest.getPatternDepth().trim();
     }
 
@@ -63,12 +70,15 @@ public final class TyreLifecycleCalc
     public static Map<Long, String> computeSegmentWears(BigDecimal initialDepth,
                                                          List<RecordTyreMileage> mileageList)
     {
+        // 1. 初始化磨损结果 Map，用于存储每条记录的磨损值
         Map<Long, String> wearMap = new HashMap<>();
+        // 2. 空列表校验，直接返回空 Map
         if (mileageList == null || mileageList.isEmpty())
         {
             return wearMap;
         }
 
+        // 3. 过滤掉空对象，构建待排序列表
         List<RecordTyreMileage> sortedList = new ArrayList<>();
         for (RecordTyreMileage item : mileageList)
         {
@@ -77,29 +87,37 @@ public final class TyreLifecycleCalc
                 sortedList.add(item);
             }
         }
+        // 4. 按开始时间升序、ID 升序排序，确保时间线正确
         sortedList.sort(Comparator
                 .comparing(RecordTyreMileage::getStartTime, Comparator.nullsLast(Comparator.naturalOrder()))
                 .thenComparing(RecordTyreMileage::getId, Comparator.nullsLast(Comparator.naturalOrder())));
 
+        // 5. 初始化前一段花纹深度为初始深度
         BigDecimal previousDepth = initialDepth;
+        // 6. 遍历排序后的里程记录，逐段计算磨损
         for (RecordTyreMileage item : sortedList)
         {
+            // 解析当前记录的花纹深度
             BigDecimal currentDepth = parseDepth(item.getPatternDepth());
             String wearDepth = null;
+            // 7. 若前后深度均有效，计算差值作为本段磨损
             if (previousDepth != null && currentDepth != null)
             {
                 wearDepth = formatDecimal(previousDepth.subtract(currentDepth));
             }
+            // 8. 将磨损值存入 Map，以记录 ID 为键
             if (item.getId() != null)
             {
                 wearMap.put(item.getId(), wearDepth);
             }
+            // 9. 更新前一段深度为当前深度（脏数据不更新，避免污染后续计算）
             if (currentDepth != null)
             {
                 // 当前段脏数据不更新 prev，避免一条坏花纹深度污染后续所有段。
                 previousDepth = currentDepth;
             }
         }
+        // 10. 返回各段磨损值映射
         return wearMap;
     }
 
@@ -112,17 +130,21 @@ public final class TyreLifecycleCalc
      */
     public static BigDecimal parseDepth(String value)
     {
+        // 1. 空值校验，空白字符串直接返回 null
         if (isBlank(value))
         {
             return null;
         }
+        // 2. 去除前后空格，规范化输入
         String trimmed = value.trim();
         try
         {
+            // 3. 尝试将字符串解析为 BigDecimal
             return new BigDecimal(trimmed);
         }
         catch (NumberFormatException ex)
         {
+            // 4. 解析失败时记录警告日志，返回 null 避免异常传播
             log.warn("轮胎花纹深度无法解析，已按空值处理：{}", trimmed);
             return null;
         }
@@ -136,56 +158,68 @@ public final class TyreLifecycleCalc
      */
     public static BigDecimal sumMileage(List<RecordTyreMileage> mileageList)
     {
+        // 1. 空列表校验，直接返回 null
         if (mileageList == null || mileageList.isEmpty())
         {
             return null;
         }
+        // 2. 初始化累加器和有效数据标志
         BigDecimal total = BigDecimal.ZERO;
         boolean hasMileage = false;
+        // 3. 遍历里程记录，累加有效里程值
         for (RecordTyreMileage item : mileageList)
         {
+            // 跳过空对象和空里程值，仅累加有效数据
             if (item != null && item.getMileage() != null)
             {
                 total = total.add(BigDecimal.valueOf(item.getMileage()));
                 hasMileage = true;
             }
         }
+        // 4. 返回累加结果，无有效数据时返回 null
         return hasMileage ? total : null;
     }
 
     private static boolean after(RecordTyreInstall left, RecordTyreInstall right)
     {
+        // 1. 优先比较创建时间，两者均不为空时按时间先后判断
         if (left.getCreateTime() != null && right.getCreateTime() != null)
         {
             int compare = left.getCreateTime().compareTo(right.getCreateTime());
             if (compare != 0)
             {
-                return compare > 0;
+                return compare > 0; // 大于 0 表示 left 时间更晚
             }
         }
+        // 2. 仅 left 有创建时间，说明 left 更晚
         else if (left.getCreateTime() != null)
         {
             return true;
         }
+        // 3. 仅 right 有创建时间，说明 right 更晚
         else if (right.getCreateTime() != null)
         {
             return false;
         }
 
+        // 4. 创建时间相同或无创建时间时，比较 ID 作为兜底，ID 大者视为更晚
         if (left.getId() != null && right.getId() != null)
         {
             return left.getId().compareTo(right.getId()) > 0;
         }
+        // 5. 仅 left 有 ID 时，left 视为更晚
         return left.getId() != null && right.getId() == null;
     }
 
     private static String formatDecimal(BigDecimal value)
     {
+        // 空值直接返回 null，非空时去除末尾零并转为纯文本字符串（避免科学计数法）
         return value == null ? null : value.stripTrailingZeros().toPlainString();
     }
 
     private static boolean isBlank(String value)
     {
+        // 校验字符串是否为 null 或去除空格后为空
         return value == null || value.trim().isEmpty();
     }
 }
diff --git a/ruoyi-system/src/main/resources/mapper/tyre/BizOrderTireDetailMapper.xml b/ruoyi-system/src/main/resources/mapper/tyre/BizOrderTireDetailMapper.xml
index f494ec87..79f05729 100644
--- a/ruoyi-system/src/main/resources/mapper/tyre/BizOrderTireDetailMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/tyre/BizOrderTireDetailMapper.xml
@@ -140,4 +140,31 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         </foreach>
     </delete>
 
-</mapper>
\ No newline at end of file
+
+
+
+
+
+        <select id="selectCarMaintenanceTireDetails" resultType="java.util.Map" parameterType="String">
+        SELECT
+            bt.tyre_brand as brand,
+            bt.tyre_model as spec,
+            botd.tire_code as dot,
+            botd.tread_depth as depth,
+            sdd.dict_label as position,
+            botd.tire_status as status,
+            bmo.order_id as orderId,
+            bmo.order_no as orderNo,
+            bmo.maintain_date as maintainDate,
+            bmo.input_mileage as inputMileage,
+            bmo.last_mileage as lastMileage,
+            bmo.description as description
+        FROM biz_maintenance_order bmo
+            INNER JOIN biz_order_tire_detail botd ON botd.order_id = bmo.order_id
+            LEFT JOIN base_tyre bt ON bt.tyre_id = botd.tire_id
+            LEFT JOIN sys_dict_data sdd ON sdd.dict_code = botd.position_id AND sdd.dict_type = 'WheelPosition'
+        WHERE bmo.plate_number = #{plateNumber}
+        ORDER BY bmo.maintain_date DESC, bmo.order_id DESC, botd.detail_id DESC
+    </select>
+
+</mapper>