dianshang-qianduan/src/views/product/structure.vue

<template>
  <div class="architecture-page student-training-shell">
    <main class="architecture-core">
      <section class="task-header">
        <div class="task-head-main">
          <span class="task-badge"><el-icon><Operation /></el-icon> 核心实训 · 产品规划与设计</span>
          <h1 class="task-title">{{ taskTitle }}</h1>
          <p class="task-brief">
            <span class="task-brief-text">{{ taskBackground }}</span>
            <button type="button" class="task-brief-toggle" @click="briefOpen = !briefOpen">
              {{ briefOpen ? "收起" : "展开目标与要求" }}
            </button>
            <span v-if="briefOpen" class="task-brief-more">
              <b>实训目标</b>
              <ul><li v-for="goal in taskGoals" :key="goal">{{ goal }}</li></ul>
              <b>实训要求</b>
              <p>{{ taskRequirement }}</p>
            </span>
          </p>
        </div>
        <div class="architecture-toolbar">
          <TrainingMaterialButton :material-name="taskConfig?.materialName" :material-url="taskConfig?.materialUrl" />
          <button type="button" class="outline-action" @click="exportOutcome"><el-icon><Download /></el-icon>导出实训成果</button>
        </div>
      </section>

      <section class="architecture-workbench">
        <nav class="step-indicator" aria-label="产品架构设计步骤">
          <template v-for="(step, index) in trainingSteps" :key="`${step}-${index}`">
            <button type="button" :class="['step-tab', { active: currentStep === index + 1, complete: currentStep > index + 1 }]" @click="switchStep(index + 1)">
              <span class="step-marker">{{ String(index + 1).padStart(2, '0') }}</span>
              <span class="step-copy"><strong class="step-name">{{ step }}</strong><span class="step-action">{{ currentStep === index + 1 ? '当前步骤' : '点击切换' }} →</span></span>
            </button>
            <span v-if="index < trainingSteps.length - 1" class="step-connector" aria-hidden="true"></span>
          </template>
        </nav>

        <section v-if="currentStep === 1" class="architecture-step-card">
          <div class="step-title-row"><div><p class="section-eyebrow">Step 01</p><h3>{{ trainingSteps[0] }}</h3></div><span class="step-chip">拖拽排序判题</span></div>
          <p class="step-desc">智能硬件产品通常采用模块化分层架构，从物理硬件到用户功能分为 4 层。请将卡片拖拽为<strong>从底层到顶层</strong>的正确顺序；排序正确后才能进入下一步。</p>

          <div class="architecture-workspace">
            <div class="order-rail" aria-hidden="true"><span>底层</span><i></i><span>顶层</span></div>
            <div class="layer-list" role="list" aria-label="产品架构层级排序">
              <article v-for="(layer, index) in layerOrder" :key="layer.id" class="layer-card" :class="{ dragging: dragLayerId === layer.id }" draggable="true" role="listitem" @dragstart="onDragStart(layer.id)" @dragend="dragLayerId = ''" @dragover.prevent @drop="onDrop(layer.id)">
                <span class="layer-position">{{ index + 1 }}</span>
                <span class="drag-handle" title="拖拽排序">⋮⋮</span>
                <div class="layer-copy"><h4>{{ layer.name }}</h4><p>{{ layer.description }}</p></div>
                <div class="move-actions">
                  <button type="button" :disabled="index === 0 || checking" title="上移" @click="moveLayer(index, -1)">↑</button>
                  <button type="button" :disabled="index === layerOrder.length - 1 || checking" title="下移" @click="moveLayer(index, 1)">↓</button>
                </div>
              </article>
            </div>
          </div>

          <p v-if="checkResult" class="result-message" :class="{ success: checkResult.allCorrect }">{{ checkResult.message || (checkResult.allCorrect ? '排序正确，已解锁下一步。' : `当前仅 ${checkResult.correctPositionCount}/${checkResult.totalCount} 个位置正确，请继续调整。`) }}</p>
          <div class="task-actions">
            <button type="button" class="btn-nav btn-submit" :disabled="checking" @click="checkAndSave">{{ checking ? '判题中…' : '检查排序并保存' }}</button>
            <button type="button" class="btn-nav" :disabled="checking" @click="shuffleLayers"><el-icon><RefreshLeft /></el-icon>重新打乱</button>
            <button type="button" class="btn-nav btn-primary" :disabled="!stepOnePassed" @click="goNextStep">进入第 2 步<el-icon><ArrowRight /></el-icon></button>
          </div>
        </section>

        <section v-else-if="currentStep === 2" class="architecture-step-card">
          <div class="step-title-row"><div><p class="section-eyebrow">Step 02</p><h3>{{ trainingSteps[1] }}</h3></div><span class="step-chip">操作链路排序</span></div>
          <p class="step-desc">产品运行时，用户操作产生的信号会经过硬件感知、驱动传递、算法处理和应用功能触发，最终再由硬件产生效果。请将以下动作按一次完整运行链路的正确顺序排列。</p>

          <div class="flow-workspace">
            <div class="flow-caption"><span>操作发起</span><i></i><span>效果反馈</span></div>
            <div class="flow-list" role="list" aria-label="产品运行操作链路排序">
              <article v-for="(action, index) in flowOrder" :key="action.id" class="flow-card" :class="{ dragging: dragFlowId === action.id }" draggable="true" role="listitem" @dragstart="onFlowDragStart(action.id)" @dragend="dragFlowId = ''" @dragover.prevent @drop="onFlowDrop(action.id)">
                <span class="layer-position">{{ index + 1 }}</span>
                <span class="drag-handle" title="拖拽排序">⋮⋮</span>
                <div class="layer-copy"><h4>{{ action.name }}</h4><p>{{ action.description }}</p></div>
                <div class="move-actions">
                  <button type="button" :disabled="index === 0 || checking" title="上移" @click="moveFlow(index, -1)">↑</button>
                  <button type="button" :disabled="index === flowOrder.length - 1 || checking" title="下移" @click="moveFlow(index, 1)">↓</button>
                </div>
              </article>
            </div>
          </div>

          <p v-if="stepTwoCheckResult" class="result-message" :class="{ success: stepTwoCheckResult.allCorrect }">{{ stepTwoCheckResult.message || (stepTwoCheckResult.allCorrect ? '排序正确，已解锁下一步。' : `当前仅 ${stepTwoCheckResult.correctPositionCount}/${stepTwoCheckResult.totalCount} 个位置正确，请继续调整。`) }}</p>
          <div class="task-actions">
            <button type="button" class="btn-nav btn-submit" :disabled="checking" @click="checkAndSaveStepTwo">{{ checking ? '判题中…' : '检查排序并保存' }}</button>
            <button type="button" class="btn-nav" :disabled="checking" @click="shuffleFlow"><el-icon><RefreshLeft /></el-icon>重新打乱</button>
            <button type="button" class="btn-nav btn-primary" :disabled="!stepTwoPassed" @click="goNextStep">进入第 3 步<el-icon><ArrowRight /></el-icon></button>
          </div>
        </section>

        <section v-else-if="currentStep === 3" class="architecture-step-card">
          <div class="step-title-row"><div><p class="section-eyebrow">Step 03</p><h3>{{ trainingSteps[2] }}</h3></div><span class="step-chip">场景链路分析</span></div>
          <p class="step-desc">根据本实训案例资料，至少选择 3 个典型的工作场景，分析产品架构各层级在场景中的具体工作。每一行需完整填写，系统会将这些内容作为后续架构方案设计的依据。</p>

          <div class="scene-toolbar">
            <span>已完成 {{ completedScenarioCount }} 个场景 <em>（至少 3 个，空白行不参与校验）</em></span>
            <div class="scene-toolbar__actions">
              <button type="button" class="btn-nav" :disabled="scenarioRows.length >= 10 || checking" @click="addScenarioRow">增加一行</button>
              <button type="button" class="btn-nav" :disabled="scenarioRows.length <= 3 || checking" @click="removeScenarioRow">删除一行</button>
              <button type="button" class="btn-nav" @click="exportOutcome"><el-icon><Download /></el-icon>导出</button>
            </div>
          </div>

          <div class="scenario-table-wrap">
            <table class="scenario-table">
              <thead><tr><th>序号</th><th>用户场景</th><th>硬件物理层<br><small>（感知什么）</small></th><th>驱动感知层<br><small>（传递什么）</small></th><th>算法处理层<br><small>（处理什么）</small></th><th>应用功能层<br><small>（触发什么）</small></th><th>驱动感知层<br><small>（输出什么）</small></th><th>硬件物理层<br><small>（产生什么效果）</small></th></tr></thead>
              <tbody>
                <tr v-for="(row, index) in scenarioRows" :key="row.id">
                  <td class="scenario-index">{{ index + 1 }}</td>
                  <td><el-input v-model="row.userScenario" type="textarea" :autosize="{ minRows: 3, maxRows: 6 }" :placeholder="index === 0 ? '例如：用户说「小美，开灯」' : '填写典型用户场景'" /></td>
                  <td><el-input v-model="row.hardwareSense" type="textarea" :autosize="{ minRows: 3, maxRows: 6 }" :placeholder="index === 0 ? '例如：麦克风阵列采集到声音信号' : '硬件感知到什么'" /></td>
                  <td><el-input v-model="row.driverTransmit" type="textarea" :autosize="{ minRows: 3, maxRows: 6 }" :placeholder="index === 0 ? '例如：音频采集驱动将声音转为数字信号' : '驱动层传递什么'" /></td>
                  <td><el-input v-model="row.algorithmProcess" type="textarea" :autosize="{ minRows: 3, maxRows: 6 }" :placeholder="index === 0 ? '例如：唤醒词检测与命令词匹配' : '算法层处理什么'" /></td>
                  <td><el-input v-model="row.applicationTrigger" type="textarea" :autosize="{ minRows: 3, maxRows: 6 }" :placeholder="index === 0 ? '例如：触发语音开关灯功能' : '应用层触发什么'" /></td>
                  <td><el-input v-model="row.driverOutput" type="textarea" :autosize="{ minRows: 3, maxRows: 6 }" :placeholder="index === 0 ? '例如：LED 调光驱动输出 PWM 信号' : '驱动层输出什么'" /></td>
                  <td><el-input v-model="row.hardwareEffect" type="textarea" :autosize="{ minRows: 3, maxRows: 6 }" :placeholder="index === 0 ? '例如：灯珠点亮并输出亮度和色温' : '硬件产生什么效果'" /></td>
                </tr>
              </tbody>
            </table>
          </div>

          <p v-if="stepThreeCheckResult" class="result-message" :class="{ success: stepThreeCheckResult.valid }">{{ stepThreeCheckResult.message }}</p>
          <div class="task-actions">
            <button type="button" class="btn-nav btn-submit" :disabled="checking" @click="checkAndSaveStepThree">{{ checking ? '校验中…' : '校验并保存' }}</button>
            <button type="button" class="btn-nav btn-primary" :disabled="!stepThreePassed" @click="goNextStep">进入第 4 步<el-icon><ArrowRight /></el-icon></button>
          </div>
        </section>

        <section v-else-if="currentStep === 4" class="architecture-step-card">
          <div class="step-title-row"><div><p class="section-eyebrow">Step 04</p><h3>{{ trainingSteps[3] }}</h3></div><span class="step-chip">核心功能架构图</span></div>
          <p class="step-desc">根据案例资料，选取 3 个核心功能绘制四层架构的逻辑调用关系图。每张图应从应用功能层向下标注算法、驱动及硬件单元，并以箭头标注信号流向。</p>
          <section class="architecture-image-grid">
            <article v-for="(image, index) in architectureImages" :key="image.key" class="architecture-image-card" :class="{ uploading: uploadingArchitectureImage === index }">
              <div class="architecture-image-card__head"><span>架构图 {{ index + 1 }}</span><small>{{ image.url ? '已上传' : '待上传' }}</small></div>
              <label class="architecture-image-trigger">
                <input type="file" accept="image/png,image/jpeg,image/webp,image/gif" :disabled="uploadingArchitectureImage !== null || checking" @change="uploadArchitectureImage($event, index)" />
                <el-icon><Upload /></el-icon>
                <strong>{{ uploadingArchitectureImage === index ? '上传中…' : image.url ? '替换架构图' : `上传架构图 ${index + 1}` }}</strong>
                <span>PNG、JPG、WEBP 或 GIF</span>
              </label>
              <figure v-if="image.url" class="architecture-image-preview">
                <el-image :src="image.url" :preview-src-list="[image.url]" fit="cover" preview-teleported />
                <figcaption><span>{{ image.name || `架构图 ${index + 1}` }}</span><button type="button" @click="clearArchitectureImage(index)">移除</button></figcaption>
              </figure>
            </article>
          </section>
          <section class="architecture-guide"><h4>参考工具及方案</h4><ol><li>下载模板，按应用功能层、算法处理层、驱动感知层、硬件物理层补全逻辑调用关系。</li><li>每张图围绕一个核心功能绘制，使用箭头清晰标注信号流向。</li></ol><button type="button" @click="downloadArchitectureTemplate">下载模板</button></section>
          <p v-if="stepFourCheckResult" class="result-message" :class="{ success: stepFourCheckResult.valid }">{{ stepFourCheckResult.message }}</p>
          <div class="task-actions"><button type="button" class="btn-nav" :disabled="uploadingArchitectureImage !== null || checking" @click="saveStepFour">保存进度</button><button type="button" class="btn-nav btn-submit" :disabled="uploadingArchitectureImage !== null || checking" @click="checkAndSaveStepFour">{{ checking ? '校验中…' : '校验并完成实训' }}</button></div>
        </section>
        <section v-else class="architecture-step-card placeholder-card"><p class="section-eyebrow">Step {{ String(currentStep).padStart(2, '0') }}</p><h3>{{ trainingSteps[currentStep - 1] }}</h3></section>
      </section>
    </main>

    <TrainingAiSidebar study-tip="先识别物理硬件、驱动感知、算法处理和应用功能各自职责，再从底层到顶层排序。" reference-title="分层判断提示" reference-text="· 硬件物理层：实体元器件与电路基础<br />· 驱动感知层：信号采集、转换与驱动<br />· 算法处理层：数据处理、识别与决策<br />· 应用功能层：用户可直接感知和操作的功能" :progress-items="progressItems" />
  </div>
</template>

<script setup>
import { ArrowLeft, ArrowRight, Download, Operation, RefreshLeft, Upload } from "@element-plus/icons-vue";
import { checkProductArchitectureDesignStepOne, checkProductArchitectureDesignStepTwo, checkProductArchitectureDesignStepThree, checkProductArchitectureDesignStepFour, getStudentTrainingAnswer, saveStudentTrainingAnswer, uploadStudentTrainingFile } from "@/api/studentTrainingAnswer";
import { getTrainingTaskByKey } from "@/api/trainingTask";
import { parseTrainingArray } from "@/views/training/taskKeyMap";
import TrainingAiSidebar from "@/views/components/TrainingAiSidebar.vue";
import TrainingMaterialButton from "@/views/components/TrainingMaterialButton.vue";
import { SCENARIO_FIELDS, getCompletedScenarioCount, getRowsForScenarioValidation, getScenarioValidationMessage } from "./productArchitectureScenarioValidation.mjs";

const { proxy } = getCurrentInstance();
const TASK_KEY = "product-structure";
const PRODUCT_ARCHITECTURE_TEMPLATE_URL = "/file/training-materials/product-architecture/13.产品架构图绘制模版.pptx";
const DEFAULT_STEPS = ["智能硬件分层架构", "产品运行操作链路", "产品场景架构分析", "架构评审与优化"];
const LAYERS = [
  { id: "hardware-physical", name: "硬件物理层", description: "产品的物理基础，包含电源模块、主控芯片、传感器、LED灯珠等实体元器件。" },
  { id: "driver-sensing", name: "驱动感知层", description: "连接硬件与算法的中间层，负责信号采集、转换与输出驱动。" },
  { id: "algorithm-processing", name: "算法处理层", description: "数据处理与决策的核心层，负责语音识别、信号分析、控制策略等算法逻辑。" },
  { id: "application-function", name: "应用功能层", description: "面向用户的功能呈现层，是用户能直接感知和操作的功能集合。" },
];
const FLOW_ACTIONS = [
  { id: "user-action", name: "用户做了一个操作", description: "用户在产品或应用中发起一次操作。" },
  { id: "hardware-senses", name: "硬件感知到信号", description: "传感器或硬件模块捕获用户操作形成的输入信号。" },
  { id: "driver-transmits", name: "驱动层传递信号", description: "驱动与感知层完成信号采集、转换并向上层传递。" },
  { id: "algorithm-processes", name: "算法层处理数据", description: "算法层对输入数据进行识别、分析和决策。" },
  { id: "application-triggers", name: "应用层触发功能", description: "应用功能层依据算法结果触发对应的产品功能。" },
  { id: "driver-outputs", name: "驱动层输出指令", description: "驱动层将功能指令转化为可执行的控制输出。" },
  { id: "hardware-effects", name: "硬件产生效果", description: "硬件执行指令并形成用户可感知的最终效果。" },
];
const fallbackTask = {
  title: "产品架构设计", background: "智能硬件产品采用模块化分层架构。通过本实训理解各层职责和层间关系，为后续功能与技术方案设计建立基础。",
  goals: ["理解智能硬件的四层模块化架构", "区分各层的核心职责", "建立从物理硬件到用户功能的系统化思维"],
  requirement: "将四层架构按「从底层到顶层」排序；判题通过后方可进入下一步。",
};

const taskConfig = ref(null);
const briefOpen = ref(false);
const currentStep = ref(1);
const layerOrder = ref(shuffle(duplicateLayers()));
const dragLayerId = ref("");
const checking = ref(false);
const stepOnePassed = ref(false);
const checkResult = ref(null);
const flowOrder = ref(shuffle(duplicateFlowActions()));
const dragFlowId = ref("");
const stepTwoPassed = ref(false);
const stepTwoCheckResult = ref(null);
const scenarioRows = ref(createScenarioRows(3));
const stepThreePassed = ref(false);
const stepThreeCheckResult = ref(null);
const architectureImages = ref(createArchitectureImages());
const uploadingArchitectureImage = ref(null);
const stepFourPassed = ref(false);
const stepFourCheckResult = ref(null);
const taskTitle = computed(() => taskConfig.value?.taskName || fallbackTask.title);
const taskBackground = computed(() => taskConfig.value?.background || fallbackTask.background);
const taskGoals = computed(() => parseTrainingArray(taskConfig.value?.objectives, fallbackTask.goals));
const taskRequirement = computed(() => taskConfig.value?.requirements || fallbackTask.requirement);
const trainingSteps = computed(() => parseTrainingArray(taskConfig.value?.steps, DEFAULT_STEPS));
const progressItems = computed(() => trainingSteps.value.map((text, index) => ({ text, status: index + 1 < currentStep.value ? "done" : index + 1 === currentStep.value ? "doing" : "" })));
const completedScenarioCount = computed(() => getCompletedScenarioCount(scenarioRows.value));

onMounted(async () => { await loadTaskConfig(); await loadSavedProgress(); });

function duplicateLayers() { return LAYERS.map((item) => ({ ...item })); }
function duplicateFlowActions() { return FLOW_ACTIONS.map((item) => ({ ...item })); }
function createScenarioRow() { return { id: `scenario-${Date.now()}-${Math.random().toString(36).slice(2, 8)}`, userScenario: "", hardwareSense: "", driverTransmit: "", algorithmProcess: "", applicationTrigger: "", driverOutput: "", hardwareEffect: "" }; }
function createScenarioRows(total) { return Array.from({ length: total }, () => createScenarioRow()); }
function createArchitectureImages() { return [1, 2, 3].map((index) => ({ key: `architecture-${index}`, url: "", name: "" })); }
function shuffle(items) {
  const result = [...items];
  for (let index = result.length - 1; index > 0; index -= 1) { const target = Math.floor(Math.random() * (index + 1)); [result[index], result[target]] = [result[target], result[index]]; }
  return result;
}
function normalizeOrder(ids) {
  if (!Array.isArray(ids) || ids.length !== LAYERS.length || new Set(ids).size !== LAYERS.length) return null;
  const found = Object.fromEntries(LAYERS.map((item) => [item.id, item]));
  return ids.every((id) => found[id]) ? ids.map((id) => ({ ...found[id] })) : null;
}
function normalizeFlowOrder(ids) {
  if (!Array.isArray(ids) || ids.length !== FLOW_ACTIONS.length || new Set(ids).size !== FLOW_ACTIONS.length) return null;
  const found = Object.fromEntries(FLOW_ACTIONS.map((item) => [item.id, item]));
  return ids.every((id) => found[id]) ? ids.map((id) => ({ ...found[id] })) : null;
}
async function loadTaskConfig() { try { taskConfig.value = (await getTrainingTaskByKey(TASK_KEY))?.data || null; } catch (_) { taskConfig.value = null; } }
async function loadSavedProgress() {
  try {
    const answer = (await getStudentTrainingAnswer(TASK_KEY))?.data;
    const saved = parseSavedAnswer(answer?.step1Answer);
    const stepTwoSaved = parseSavedAnswer(answer?.step2Answer);
    const stepThreeSaved = parseSavedAnswer(answer?.step3Answer);
    const stepFourSaved = parseSavedAnswer(answer?.step4Answer);
    const order = normalizeOrder(saved?.layerIds);
    if (order) layerOrder.value = order;
    stepOnePassed.value = Boolean(saved?.passed);
    checkResult.value = saved?.checkResult || null;
    const flow = normalizeFlowOrder(stepTwoSaved?.actionIds);
    if (flow) flowOrder.value = flow;
    stepTwoPassed.value = Boolean(stepTwoSaved?.passed);
    stepTwoCheckResult.value = stepTwoSaved?.checkResult || null;
    const scenarios = normalizeScenarioRows(stepThreeSaved?.rows);
    if (scenarios) scenarioRows.value = scenarios;
    stepThreePassed.value = Boolean(stepThreeSaved?.passed);
    stepThreeCheckResult.value = stepThreeSaved?.checkResult || null;
    const images = normalizeArchitectureImages(stepFourSaved?.images);
    if (images) architectureImages.value = images;
    stepFourPassed.value = Boolean(stepFourSaved?.passed);
    stepFourCheckResult.value = stepFourSaved?.checkResult || null;
    const savedStep = Number(answer?.currentStep || saved?.currentStep);
    if (savedStep > 1) currentStep.value = Math.min(savedStep, trainingSteps.value.length);
  } catch (_) { /* Keep the randomized local state when no saved answer exists. */ }
}
function parseSavedAnswer(raw) { if (!raw) return null; try { return typeof raw === "string" ? JSON.parse(raw) : raw; } catch (_) { return null; } }
function normalizeScenarioRows(rows) {
  if (!Array.isArray(rows) || rows.length < 3 || rows.length > 10) return null;
  return rows.map((row) => ({ id: row?.id || createScenarioRow().id, ...SCENARIO_FIELDS.reduce((result, field) => ({ ...result, [field]: String(row?.[field] || "") }), {}) }));
}
function normalizeArchitectureImages(images) {
  if (!Array.isArray(images) || images.length !== 3) return null;
  return images.map((image, index) => ({ key: `architecture-${index + 1}`, url: String(image?.url || ""), name: String(image?.name || "") }));
}
function buildStepOneAnswer() { return { layerIds: layerOrder.value.map((item) => item.id), passed: stepOnePassed.value, checkResult: checkResult.value, updatedAt: new Date().toISOString() }; }
function buildStepTwoAnswer() { return { actionIds: flowOrder.value.map((item) => item.id), passed: stepTwoPassed.value, checkResult: stepTwoCheckResult.value, updatedAt: new Date().toISOString() }; }
function buildStepThreeAnswer() { return { rows: scenarioRows.value.map((row) => ({ ...row })), passed: stepThreePassed.value, checkResult: stepThreeCheckResult.value, updatedAt: new Date().toISOString() }; }
function buildStepFourAnswer() { return { images: architectureImages.value.map((image) => ({ ...image })), passed: stepFourPassed.value, checkResult: stepFourCheckResult.value, updatedAt: new Date().toISOString() }; }
function buildAnswer() { return { currentStep: currentStep.value, step1: buildStepOneAnswer(), step2: buildStepTwoAnswer(), step3: buildStepThreeAnswer(), step4: buildStepFourAnswer() }; }
async function persist(saveAction = "SAVE") { await saveStudentTrainingAnswer(TASK_KEY, { saveAction, currentStep: currentStep.value, step1Answer: JSON.stringify(buildStepOneAnswer()), step2Answer: JSON.stringify(buildStepTwoAnswer()), step3Answer: JSON.stringify(buildStepThreeAnswer()), step4Answer: JSON.stringify(buildStepFourAnswer()), submitted: stepFourPassed.value && saveAction === "SUBMIT" }); }
function onDragStart(id) { if (!checking.value) dragLayerId.value = id; }
function onDrop(targetId) {
  const fromIndex = layerOrder.value.findIndex((item) => item.id === dragLayerId.value); const toIndex = layerOrder.value.findIndex((item) => item.id === targetId);
  if (fromIndex < 0 || toIndex < 0 || fromIndex === toIndex) return;
  const next = [...layerOrder.value]; const [moving] = next.splice(fromIndex, 1); next.splice(toIndex, 0, moving); layerOrder.value = next; checkResult.value = null; stepOnePassed.value = false;
}
function moveLayer(index, direction) { const target = index + direction; if (target < 0 || target >= layerOrder.value.length) return; const next = [...layerOrder.value]; [next[index], next[target]] = [next[target], next[index]]; layerOrder.value = next; checkResult.value = null; stepOnePassed.value = false; }
function shuffleLayers() { layerOrder.value = shuffle(duplicateLayers()); checkResult.value = null; stepOnePassed.value = false; }
function onFlowDragStart(id) { if (!checking.value) dragFlowId.value = id; }
function onFlowDrop(targetId) {
  const fromIndex = flowOrder.value.findIndex((item) => item.id === dragFlowId.value); const toIndex = flowOrder.value.findIndex((item) => item.id === targetId);
  if (fromIndex < 0 || toIndex < 0 || fromIndex === toIndex) return;
  const next = [...flowOrder.value]; const [moving] = next.splice(fromIndex, 1); next.splice(toIndex, 0, moving); flowOrder.value = next; stepTwoCheckResult.value = null; stepTwoPassed.value = false;
}
function moveFlow(index, direction) { const target = index + direction; if (target < 0 || target >= flowOrder.value.length) return; const next = [...flowOrder.value]; [next[index], next[target]] = [next[target], next[index]]; flowOrder.value = next; stepTwoCheckResult.value = null; stepTwoPassed.value = false; }
function shuffleFlow() { flowOrder.value = shuffle(duplicateFlowActions()); stepTwoCheckResult.value = null; stepTwoPassed.value = false; }
function addScenarioRow() { if (scenarioRows.value.length >= 10) return; scenarioRows.value.push(createScenarioRow()); stepThreeCheckResult.value = null; stepThreePassed.value = false; }
function removeScenarioRow() { if (scenarioRows.value.length <= 3) return; scenarioRows.value.pop(); stepThreeCheckResult.value = null; stepThreePassed.value = false; }
async function checkAndSave() {
  if (checking.value) return;
  checking.value = true;
  try {
    const response = await checkProductArchitectureDesignStepOne(layerOrder.value.map((item) => item.id));
    checkResult.value = response?.data || null; stepOnePassed.value = Boolean(checkResult.value?.allCorrect);
    await persist("SAVE");
    if (stepOnePassed.value) proxy?.$modal?.msgSuccess("排序正确，已保存并解锁下一步"); else proxy?.$modal?.msgWarning("排序尚未正确，请继续调整");
  } catch (error) { proxy?.$modal?.msgError(error?.message || "判题失败，请稍后重试"); } finally { checking.value = false; }
}
async function checkAndSaveStepTwo() {
  if (checking.value) return;
  checking.value = true;
  try {
    const response = await checkProductArchitectureDesignStepTwo(flowOrder.value.map((item) => item.id));
    stepTwoCheckResult.value = response?.data || null; stepTwoPassed.value = Boolean(stepTwoCheckResult.value?.allCorrect);
    await persist("SAVE");
    if (stepTwoPassed.value) proxy?.$modal?.msgSuccess("排序正确，已保存并解锁下一步"); else proxy?.$modal?.msgWarning("排序尚未正确，请继续调整");
  } catch (error) { proxy?.$modal?.msgError(error?.message || "判题失败，请稍后重试"); } finally { checking.value = false; }
}
async function checkAndSaveStepThree() {
  if (checking.value) return;
  const validationMessage = getScenarioValidationMessage(scenarioRows.value);
  if (validationMessage) {
    stepThreePassed.value = false;
    stepThreeCheckResult.value = { valid: false, message: validationMessage };
    proxy?.$modal?.msgWarning(validationMessage);
    return;
  }
  checking.value = true;
  try {
    const response = await checkProductArchitectureDesignStepThree(getRowsForScenarioValidation(scenarioRows.value).map((row) => ({ ...row })));
    stepThreeCheckResult.value = response?.data || null; stepThreePassed.value = Boolean(stepThreeCheckResult.value?.valid);
    await persist("SAVE");
    if (stepThreePassed.value) proxy?.$modal?.msgSuccess("场景架构分析已保存并解锁下一步"); else proxy?.$modal?.msgWarning("请至少完整填写 3 个典型工作场景");
  } catch (error) { proxy?.$modal?.msgError(error?.message || "校验失败，请稍后重试"); } finally { checking.value = false; }
}
async function uploadArchitectureImage(event, index) {
  const file = event.target.files?.[0];
  if (!file) return;
  if (!/^image\/(png|jpeg|webp|gif)$/i.test(file.type)) { proxy?.$modal?.msgError?.("请上传 PNG、JPG、JPEG、WEBP 或 GIF 格式的架构图"); event.target.value = ""; return; }
  uploadingArchitectureImage.value = index;
  try {
    const formData = new FormData(); formData.append("file", file);
    const response = await uploadStudentTrainingFile(formData);
    const url = response?.url || response?.fileName || "";
    if (!url) throw new Error("上传结果缺少文件地址");
    architectureImages.value[index] = { ...architectureImages.value[index], url, name: response?.originalFilename || file.name };
    stepFourPassed.value = false; stepFourCheckResult.value = null;
    await persist("SAVE");
    proxy?.$modal?.msgSuccess(`架构图 ${index + 1} 上传成功`);
  } catch (error) { proxy?.$modal?.msgError?.(error?.message || "架构图上传失败"); } finally { uploadingArchitectureImage.value = null; event.target.value = ""; }
}
function clearArchitectureImage(index) { architectureImages.value[index] = { ...architectureImages.value[index], url: "", name: "" }; stepFourPassed.value = false; stepFourCheckResult.value = null; }
async function saveStepFour() { if (uploadingArchitectureImage.value !== null) return; await persist("SAVE"); proxy?.$modal?.msgSuccess("第 4 步进度已保存"); }
async function checkAndSaveStepFour() {
  if (checking.value || uploadingArchitectureImage.value !== null) return;
  checking.value = true;
  try {
    const response = await checkProductArchitectureDesignStepFour(architectureImages.value.map((image) => image.url));
    stepFourCheckResult.value = response?.data || null; stepFourPassed.value = Boolean(stepFourCheckResult.value?.valid);
    await persist(stepFourPassed.value ? "SUBMIT" : "SAVE");
    if (stepFourPassed.value) proxy?.$modal?.msgSuccess("产品架构设计实训已完成"); else proxy?.$modal?.msgWarning("请上传完整的三张核心功能架构图");
  } catch (error) { proxy?.$modal?.msgError(error?.message || "校验失败，请稍后重试"); } finally { checking.value = false; }
}
function downloadArchitectureTemplate() {
  downloadBuiltInFile(PRODUCT_ARCHITECTURE_TEMPLATE_URL, "13.产品架构图绘制模版.pptx");
}
function downloadBuiltInFile(url, fileName) {
  const link = document.createElement("a");
  link.href = url;
  link.download = fileName;
  document.body.appendChild(link);
  link.click();
  document.body.removeChild(link);
}
async function goNextStep() {
  if ((currentStep.value === 1 && !stepOnePassed.value) || (currentStep.value === 2 && !stepTwoPassed.value) || (currentStep.value === 3 && !stepThreePassed.value)) return;
  currentStep.value = Math.min(currentStep.value + 1, trainingSteps.value.length); await persist("SAVE");
}
function switchStep(step) {
  if (step > 1 && !stepOnePassed.value) { proxy?.$modal?.msgWarning("请先完成第 1 步排序并判题通过"); return; }
  if (step > 2 && !stepTwoPassed.value) { proxy?.$modal?.msgWarning("请先完成第 2 步排序并判题通过"); return; }
  if (step > 3 && !stepThreePassed.value) { proxy?.$modal?.msgWarning("请先完成第 3 步场景架构分析并校验通过"); return; }
  currentStep.value = step;
}
function exportOutcome() { const blob = new Blob([JSON.stringify(buildAnswer(), null, 2)], { type: "application/json;charset=utf-8" }); const url = URL.createObjectURL(blob); const link = document.createElement("a"); link.href = url; link.download = `${taskTitle.value}-实训成果.json`; link.click(); URL.revokeObjectURL(url); }
</script>

<style lang="scss" scoped>
/* ===== 页面级令牌（墨黑极简主题） ===== */
.architecture-page {
  --student-accent: #1f2937;
  --student-accent-deep: #111827;
  --student-accent-light: #4b5563;
  --student-accent-soft: #f3f4f6;
  --student-danger: #d9554c;
  --student-success: #4a9d6e;
  --student-layer-1: #374151;
  --student-layer-2: #43a294;
  --student-layer-3: #8b6fc0;
  --student-panel-border: #e5e7eb;
  --student-card-bg: #ffffff;
  --student-panel-bg: #fafbfc;
  --student-text: #1f2937;
  --student-text-secondary: #6b7280;
  --student-fs-display: 17px;
  --student-fs-h1: 15px;
  --student-fs-h2: 14px;
  --student-fs-h3: 13px;
  --student-fs-body: 13px;
  --student-fs-body-sm: 12px;
  --student-fs-caption: 11px;
  --student-fs-button: 13px;
  --student-fs-button-lg: 13px;
  --student-fs-data: 14px;

  min-width: 0;
  color: var(--student-text);
  background: #ffffff;
}

.architecture-core {
  display: grid;
  gap: 10px;
  align-content: start;
  min-width: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

/* ===== task-header ===== */
.task-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  padding: 16px;
  border: 1px solid #e7e9ed;
  border-radius: 16px;
  background: #ffffff;
}

.task-head-main {
  display: grid;
  justify-items: start;
  gap: 8px;
  min-width: 0;
  flex: 1 1 auto;
}

.task-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  border: 1px solid var(--student-panel-border);
  border-radius: 999px;
  color: var(--student-accent-deep);
  background: var(--student-accent-soft);
  font-size: 12px;
  font-weight: 700;
}

.task-title {
  margin: 0;
  color: var(--student-text);
  font-size: var(--student-fs-display);
  font-weight: 700;
  line-height: 1.35;
}

.task-brief {
  margin: 0;
  color: var(--student-text-secondary);
  font-size: 12px;
  line-height: 1.6;
}

.task-brief-text {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
}

.task-brief-toggle {
  padding: 0;
  border: 0;
  color: var(--student-accent-deep);
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  &:hover { text-decoration: underline; }
}

.task-brief-more {
  display: grid;
  gap: 6px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--student-panel-border);
  b { color: var(--student-text); font-size: 12px; }
  ul { display: grid; gap: 4px; margin: 0; padding-left: 18px; }
  p { margin: 0; }
}

.architecture-toolbar {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  max-width: 100%;
}

/* ===== workbench ===== */
.architecture-workbench {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  display: grid;
  gap: 10px;
}

.architecture-step-card {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  display: grid;
  gap: 10px;
}

.step-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.step-title-row h3 {
  margin: 4px 0 0;
  color: var(--student-text);
  font-size: var(--student-fs-h1);
  font-weight: 700;
  line-height: 1.35;
}

.step-chip {
  border: 1px solid var(--student-panel-border);
  border-radius: 6px;
  padding: 3px 10px;
  color: var(--student-text-secondary);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.section-eyebrow {
  margin: 0;
  color: var(--student-text-secondary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.step-desc {
  margin: 10px 0;
  color: var(--student-text-secondary);
  font-size: var(--student-fs-body);
  line-height: 1.6;
}

/* ===== 排序工作区 ===== */
.architecture-workspace {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 18px;
  max-width: 950px;
  margin: 0 auto;
}

.order-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--student-text-secondary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.order-rail i {
  flex: 1;
  width: 2px;
  margin: 9px 0;
  background: var(--student-panel-border);
  position: relative;
}

.order-rail i::before,
.order-rail i::after {
  content: "";
  position: absolute;
  left: -4px;
  border: 5px solid transparent;
}

.order-rail i::before {
  top: -1px;
  border-bottom-color: var(--student-panel-border);
}

.order-rail i::after {
  bottom: -1px;
  border-top-color: var(--student-panel-border);
}

.layer-list {
  display: grid;
  gap: 14px;
}

.layer-card {
  display: grid;
  grid-template-columns: 32px 22px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 17px 18px;
  border: 1px solid var(--student-panel-border);
  border-radius: 14px;
  background: #ffffff;
  cursor: grab;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.layer-card:hover,
.layer-card.dragging {
  border-color: var(--student-accent);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.layer-position {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: var(--student-accent-soft);
  color: var(--student-accent);
  font-weight: 700;
}

.drag-handle {
  color: var(--student-text-secondary);
  font-size: 20px;
  letter-spacing: -5px;
  transform: rotate(90deg);
}

.layer-copy h4 {
  margin: 0 0 6px;
  color: var(--student-text);
  font-size: 15px;
  font-weight: 700;
}

.layer-copy p {
  margin: 0;
  color: var(--student-text-secondary);
  font-size: 13px;
  line-height: 1.65;
}

.move-actions {
  display: grid;
  gap: 6px;
}

.move-actions button {
  width: 32px;
  min-height: 28px;
  padding: 0;
  border: 1px solid var(--student-panel-border);
  border-radius: 7px;
  background: #ffffff;
  color: var(--student-text);
  font: inherit;
  cursor: pointer;
  transition: border-color 0.16s ease, background 0.16s ease;
}

.move-actions button:hover:not(:disabled) {
  border-color: var(--student-accent);
  background: var(--student-accent-soft);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ===== flow workspace ===== */
.flow-workspace {
  max-width: 1000px;
  margin: 0 auto;
}

.flow-caption {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  color: var(--student-text-secondary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.flow-caption i {
  flex: 1;
  height: 1px;
  background: var(--student-panel-border);
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.flow-card {
  display: grid;
  grid-template-columns: 32px 22px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 17px 18px;
  border: 1px solid var(--student-panel-border);
  border-radius: 14px;
  background: #ffffff;
  cursor: grab;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.flow-card:hover,
.flow-card.dragging {
  border-color: var(--student-accent);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

/* ===== scene toolbar ===== */
.scene-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
  color: var(--student-text);
  font-weight: 700;
  font-size: var(--student-fs-body);
}

.scene-toolbar em {
  color: var(--student-text-secondary);
  font-style: normal;
  font-size: var(--student-fs-body-sm);
  font-weight: 400;
}

.scene-toolbar__actions {
  display: flex;
  gap: 8px;
}

/* ===== 表格 ===== */
.scenario-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--student-panel-border);
  border-radius: 10px;
}

.scenario-table {
  width: 100%;
  min-width: 1400px;
  border-collapse: collapse;
  table-layout: fixed;
}

.scenario-table th,
.scenario-table td {
  border: 1px solid var(--student-panel-border);
}

.scenario-table th {
  padding: 10px 8px;
  color: var(--student-text);
  background: #fafbfc;
  font-size: var(--student-fs-body-sm);
  font-weight: 800;
  text-align: left;
  line-height: 1.45;
}

.scenario-table th small {
  color: var(--student-text-secondary);
  font-size: 11px;
  font-weight: 600;
}

.scenario-table td {
  padding: 6px 8px;
  vertical-align: top;
}

.scenario-table th:first-child,
.scenario-table td:first-child {
  width: 52px;
}

.scenario-table th:nth-child(2),
.scenario-table td:nth-child(2) {
  width: 170px;
}

.scenario-index {
  color: var(--student-text-secondary);
  font-weight: 700;
  text-align: center;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
}

.scenario-table :deep(.el-textarea__inner) {
  min-height: 72px !important;
  border: 0;
  border-radius: 0;
  color: var(--student-text);
  background: transparent;
  box-shadow: none;
  padding: 6px 8px;
  font-size: var(--student-fs-body);
  line-height: 1.55;
  resize: vertical;
}

.scenario-table :deep(.el-textarea__inner:focus) {
  outline: 2px solid rgba(31, 41, 55, 0.2);
  outline-offset: -2px;
}

.scenario-table :deep(.el-textarea__inner::placeholder) {
  color: var(--student-text-secondary);
}

.scenario-table tr:last-child td {
  border-bottom: 0;
}

.scenario-table th:last-child,
.scenario-table td:last-child {
  border-right: 0;
}

/* ===== 架构图上传 ===== */
.architecture-image-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.architecture-image-card {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--student-panel-border);
  border-radius: 12px;
  background: #ffffff;
}

.architecture-image-card__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 13px;
  color: var(--student-text);
  font-weight: 700;
}

.architecture-image-card__head small {
  color: var(--student-text-secondary);
  font-size: 11px;
  font-weight: 500;
}

.architecture-image-trigger {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 7px;
  min-height: 154px;
  border: 1px dashed var(--student-accent);
  border-radius: 10px;
  color: var(--student-text);
  background: var(--student-accent-soft);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.16s ease, background 0.16s ease;
}

.architecture-image-trigger:hover {
  border-color: var(--student-accent-deep);
  background: #ffffff;
}

.architecture-image-trigger input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.architecture-image-trigger .el-icon {
  font-size: 24px;
  color: var(--student-accent);
}

.architecture-image-trigger span {
  color: var(--student-text-secondary);
  font-size: var(--student-fs-body-sm);
}

.architecture-image-preview {
  margin: 13px 0 0;
}

.architecture-image-preview :deep(.el-image) {
  display: block;
  width: 100%;
  height: 170px;
  overflow: hidden;
  border: 1px solid var(--student-panel-border);
  border-radius: 8px;
  background: #fff;
  cursor: zoom-in;
}

.architecture-image-preview figcaption {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-top: 9px;
  color: var(--student-text-secondary);
  font-size: var(--student-fs-body-sm);
}

.architecture-image-preview figcaption span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.architecture-image-preview button,
.architecture-guide button {
  border: 1px solid var(--student-accent);
  border-radius: 6px;
  padding: 4px 12px;
  color: #ffffff;
  background: var(--student-accent);
  font: inherit;
  font-size: var(--student-fs-body-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.16s ease;
}

.architecture-image-preview button {
  border: 1px solid var(--student-panel-border);
  background: #ffffff;
  color: var(--student-text);
}

.architecture-image-preview button:hover {
  border-color: var(--student-danger);
  color: var(--student-danger);
}

.architecture-guide {
  margin-top: 20px;
  padding: 12px 14px;
  border-left: 3px solid var(--student-accent);
  border-radius: 0 8px 8px 0;
  color: var(--student-text-secondary);
  background: var(--student-accent-soft);
  font-size: var(--student-fs-body);
  line-height: 1.7;
}

.architecture-guide h4 {
  margin: 0 0 8px;
  color: var(--student-text);
  font-size: var(--student-fs-h2);
  font-weight: 700;
}

.architecture-guide ol {
  margin: 0 0 10px;
  padding-left: 20px;
}

.architecture-guide li {
  margin: 4px 0;
}

/* ===== result ===== */
.result-message {
  margin: 16px 0 0;
  padding: 10px 14px;
  border: 1px solid #e8d5b0;
  border-radius: 8px;
  color: #8a4b08;
  background: rgba(245, 124, 0, 0.08);
  font-size: var(--student-fs-body);
}

.result-message.success {
  border-color: #c2e0cf;
  color: #2f6a4a;
  background: rgba(74, 157, 110, 0.1);
}

/* ===== 按钮 ===== */
.outline-action,
.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid rgba(31, 41, 55, 0.4);
  border-radius: 10px;
  color: var(--student-text);
  background: #ffffff;
  font: inherit;
  font-size: var(--student-fs-button);
  font-weight: 700;
  cursor: pointer;
  text-shadow: none;
  transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.outline-action:hover:not(:disabled),
.btn-nav:hover:not(:disabled) {
  border-color: var(--student-accent);
  background: var(--student-accent-soft);
  color: var(--student-accent);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(31, 41, 55, 0.12);
}

.btn-submit,
.btn-primary {
  border-color: var(--student-accent);
  color: #ffffff;
  background: var(--student-accent);
  box-shadow: 0 3px 10px rgba(31, 41, 55, 0.28);
}

.btn-submit:hover:not(:disabled),
.btn-primary:hover:not(:disabled) {
  border-color: var(--student-accent-deep);
  background: var(--student-accent-deep);
  color: #ffffff;
  box-shadow: 0 5px 14px rgba(17, 24, 39, 0.32);
}

.task-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 18px;
}

/* ===== placeholder ===== */
.placeholder-card {
  min-height: 200px;
  padding: 40px 20px;
  text-align: center;
  border: 1px dashed var(--student-panel-border);
  border-radius: 10px;
  background: var(--student-panel-bg);
}

.placeholder-card h3 {
  margin: 8px 0 0;
  color: var(--student-text);
  font-size: var(--student-fs-h2);
  font-weight: 700;
}

/* ===== 响应式 ===== */
@media (max-width: 1000px) {
  .architecture-image-grid { grid-template-columns: 1fr; }
}

@media (max-width: 840px) {
  .flow-list { grid-template-columns: 1fr; }
  .scene-toolbar { align-items: flex-start; flex-direction: column; }
  .scene-toolbar__actions { width: 100%; }
  .scene-toolbar__actions .btn-nav { flex: 1; }
}

@media (max-width: 720px) {
  .architecture-page { padding: 12px; }
  .architecture-workspace { grid-template-columns: 1fr; }
  .order-rail { display: none; }
  .layer-card { grid-template-columns: 30px 17px minmax(0, 1fr); }
  .move-actions { grid-column: 3; grid-template-columns: repeat(2, 32px); justify-content: flex-end; }
  .flow-card { grid-template-columns: 30px 17px minmax(0, 1fr); }
  .flow-card .move-actions { grid-column: 3; grid-template-columns: repeat(2, 32px); }
  .task-header { flex-direction: column; align-items: flex-start; }
  .architecture-toolbar { width: 100%; justify-content: flex-start; flex-wrap: wrap; }
}
</style>

<style lang="scss">
/* ===== 画布 + 行高 ===== */
#app .studentLayout .app-main:has(.architecture-page) {
  background: #ffffff !important;
}
#app .studentLayout .app-main:has(.architecture-page) .architecture-page {
  line-height: 1.55 !important;
}

/* ===== 步骤导航：按钮切换风 ===== */
#app .studentLayout section.app-main:has(.architecture-page) .step-indicator {
  display: flex !important;
  flex-wrap: nowrap !important;
  align-items: stretch !important;
  justify-content: center !important;
  gap: 10px !important;
  width: 100% !important;
  margin: 4px 0 16px !important;
  padding: 0 !important;
  border: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;

  .step-connector { display: none !important; }

  .step-tab {
    flex: 0 0 auto !important;
    min-width: auto !important;
    max-width: none !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    height: auto !important;
    min-height: 42px !important;
    margin: 0 !important;
    padding: 8px 14px !important;
    border: 1px solid #e5e7eb !important;
    border-radius: 8px !important;
    background: #ffffff !important;
    box-shadow: none !important;
    color: #6b7280 !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    line-height: 1.3 !important;
    letter-spacing: 0 !important;
    white-space: nowrap !important;
    text-align: center !important;
    cursor: pointer;
    transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease !important;

    .step-marker {
      display: inline-flex !important;
      align-items: center !important;
      justify-content: center !important;
      flex: 0 0 auto !important;
      min-width: 22px !important;
      width: auto !important;
      height: 22px !important;
      padding: 0 5px !important;
      border: none !important;
      border-radius: 6px !important;
      background: #f3f4f6 !important;
      color: #6b7280 !important;
      font-family: ui-monospace, "SF Mono", Consolas, monospace !important;
      font-size: 12px !important;
      font-weight: 700 !important;
      line-height: 1 !important;
      transition: background-color 0.16s ease, color 0.16s ease !important;
    }

    .step-copy {
      display: flex !important;
      flex-direction: column !important;
      gap: 0 !important;
      min-width: 0 !important;
    }

    .step-name {
      overflow: hidden !important;
      text-overflow: ellipsis !important;
      white-space: normal !important;
      line-height: 1.3 !important;
      color: inherit !important;
    }

    .step-action { display: none !important; }

    &:hover:not(.active):not(.complete) {
      border-color: #1f2937 !important;
      background: #f9fafb !important;
      color: #1f2937 !important;
      .step-marker { background: #1f2937 !important; color: #ffffff !important; }
    }

    &.complete:not(.active) {
      border-color: #dce9e2 !important;
      color: #374151 !important;
      .step-marker { background: rgba(74, 157, 110, 0.12) !important; color: #3f8a5f !important; }
      &:hover {
        border-color: #4a9d6e !important;
        background: #f9fafb !important;
        .step-marker { background: #4a9d6e !important; color: #ffffff !important; }
      }
    }

    &.active {
      border-color: #1f2937 !important;
      background: #1f2937 !important;
      color: #ffffff !important;
      font-weight: 700 !important;
      .step-marker { background: #ffffff !important; color: #1f2937 !important; }
      &:hover {
        background: #111827 !important;
        border-color: #111827 !important;
      }
    }
  }
}

/* ===== 窄屏 ===== */
@media (max-width: 900px) {
  #app .studentLayout section.app-main:has(.architecture-page) .step-indicator {
    justify-content: flex-start !important;
    gap: 8px !important;
    overflow-x: auto !important;
  }
  #app .studentLayout section.app-main:has(.architecture-page) .step-indicator .step-tab {
    flex: 0 0 auto !important;
    max-width: none !important;
  }
}

/* ===== 顶部工具栏按钮换肤 ===== */
.architecture-page .material-button.el-button,
.architecture-page .outline-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  color: #374151;
  background: #ffffff;
  box-shadow: none;
  text-shadow: none;
  font-size: 13px;
  font-weight: 600;
  transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
}

.architecture-page .material-button.el-button .el-icon,
.architecture-page .outline-action .el-icon {
  font-size: 14px;
  color: inherit;
}

.architecture-page .material-button.el-button:hover,
.architecture-page .material-button.el-button:focus,
.architecture-page .outline-action:hover:not(:disabled),
.architecture-page .outline-action:focus:not(:disabled) {
  border-color: #1f2937;
  color: #1f2937;
  background: #f9fafb;
  box-shadow: 0 2px 6px rgba(17, 24, 39, 0.1);
}

.architecture-page .material-button.el-button.is-loading {
  border-color: #d1d5db;
  color: #374151;
  background: #ffffff;
}
</style>