dianshang-qianduan/src/views/demand/index.vue

<template>
    <div class="industry-demand-page student-training-shell">
        <TrainingTaskToolbar />
        <main class="training-core">
            <section class="task-header">
                <h1 class="task-title">{{ taskTitle }}</h1>
            </section>

            <TrainingTaskBrief :background="taskBackground" :goals="taskGoals" :requirements="taskRequirement"
                :show-material="false" />

            <section class="task-card">
                <div class="workbench-head workbench-head--actions-only">
                    <div class="workbench-actions">
                        <TrainingMaterialButton :material-name="taskConfig?.materialName"
                            :material-url="taskConfig?.materialUrl" :training-data-name="taskConfig?.trainingDataName"
                            :training-data-url="taskConfig?.trainingDataUrl"
                            :guide-manual-name="taskConfig?.guideManualName"
                            :guide-manual-url="taskConfig?.guideManualUrl" :ai-manual-name="taskConfig?.aiManualName"
                            :ai-manual-url="taskConfig?.aiManualUrl" />
                        <button type="button" class="outline-action" @click="exportOutcome">
                            <el-icon>
                                <Download />
                            </el-icon>
                            导出实训成果
                        </button>
                    </div>
                </div>

                <nav v-if="trainingSteps.length" class="step-indicator" aria-label="行业需求分析步骤">
                    <template v-for="(step, index) in trainingSteps" :key="`${index}-${step}`">
                        <button type="button"
                            :class="['step-tab', { active: currentStep === index + 1, complete: currentStep > index + 1 }]"
                            :aria-label="`切换至第 ${index + 1} 步：${step}`"
                            :aria-current="currentStep === index + 1 ? 'step' : undefined"
                            @click="changeStep(index + 1)">
                            <span class="step-marker" aria-hidden="true">{{ String(index + 1).padStart(2, "0") }}</span>
                            <span class="step-copy">
                                <strong class="step-name" :title="step">{{ step }}</strong>
                                <span class="step-action">{{ currentStep === index + 1 ? "当前步骤" : "点击切换" }} <span
                                        aria-hidden="true">→</span></span>
                            </span>
                        </button>
                        <span v-if="index < trainingSteps.length - 1" class="step-connector" aria-hidden="true"></span>
                    </template>
                </nav>

                <section class="step-card industry-demand-step-card">
                    <div v-if="activeStepName" class="step-title-row">
                        <div>
                            <p class="section-eyebrow">Step {{ String(currentStep).padStart(2, "0") }}</p>
                            <h3>{{ activeStepName }}</h3>
                        </div>
                    </div>

                    <div class="background-block">
                        <h4>背景信息</h4>
                        <p v-for="line in backgroundLines" :key="line">{{ line }}</p>
                    </div>

                    <p class="task-desc">请根据以上信息进行PEST分析，进行上述各项内容归类。</p>

                    <div class="pest-grid">
                        <article v-for="item in pestItems" :key="item.key" class="pest-card">
                            <div class="pest-card__title">{{ item.label }}</div>
                            <textarea v-model="form.pest[item.key]" class="pest-input"
                                :placeholder="item.placeholder" />
                        </article>
                    </div>

                    <label class="field-block">
                        <span>通过PEST模型对智能健身镜进行分析，总结该行业核心机遇与挑战，给出合适的战略决策。</span>
                        <textarea v-model="form.strategy" class="long-textarea" placeholder="填写PEST综合分析、行业机遇挑战和战略决策" />
                    </label>

                    <div class="comparison-block">
                        <p class="comparison-title">机会与挑战对比：</p>
                        <div class="comparison-table">
                            <div class="comparison-row comparison-head">
                                <div>维度</div>
                                <div>机会点</div>
                                <div>风险点</div>
                            </div>
                            <div v-for="row in form.comparisons" :key="row.dimension" class="comparison-row">
                                <div class="dimension-cell">{{ row.dimension }}</div>
                                <textarea v-model="row.opportunity" :placeholder="row.opportunityHint" />
                                <textarea v-model="row.risk" :placeholder="row.riskHint" />
                            </div>
                        </div>
                    </div>

                    <label class="field-block">
                        <span>分析结论：</span>
                        <textarea v-model="form.conclusion" class="long-textarea"
                            placeholder="填写最终分析结论、适合进入的细分方向和后续产品建议" />
                    </label>

                    <div v-if="trainingSteps.length" class="step-actions">
                        <el-button class="step-action-btn step-action-btn--previous" :disabled="currentStep === 1"
                            @click="previousStep">
                            <el-icon>
                                <ArrowLeft />
                            </el-icon>
                            上一步
                        </el-button>
                        <el-button class="step-action-btn step-action-btn--save" :loading="saving"
                            @click="saveCurrentProgress">
                            <el-icon>
                                <CircleCheck />
                            </el-icon>
                            保存当前进度
                        </el-button>
                        <el-button class="step-action-btn step-action-btn--next"
                            :disabled="currentStep === trainingSteps.length" @click="nextStep">
                            下一步
                            <el-icon>
                                <ArrowRight />
                            </el-icon>
                        </el-button>
                    </div>

                    <div class="training-actions">
                        <el-button class="training-action training-action--submit" :loading="saving"
                            @click="submitTask">提交任务</el-button>
                        <el-button class="training-action training-action--reset"
                            @click="resetTraining">重新实训</el-button>
                    </div>
                </section>
            </section>
        </main>

        <TrainingAiSidebar :study-tip="`当前任务建议：先把背景信息拆到政治、经济、社会、技术四类，再总结机会、风险与战略决策。`" :progress-items="progressItems" />
    </div>
</template>

<script setup>
import TrainingAiSidebar from "@/views/components/TrainingAiSidebar.vue"
import TrainingMaterialButton from "@/views/components/TrainingMaterialButton.vue"
import TrainingTaskBrief from "@/views/components/TrainingTaskBrief.vue"
import { getTrainingTaskByKey } from "@/api/trainingTask"
import { parseTrainingArray } from "@/views/training/taskKeyMap"
import { getStudentTrainingAnswer, saveStudentTrainingAnswer } from "@/api/studentTrainingAnswer"
import { ArrowLeft, ArrowRight, CircleCheck, Download } from "@element-plus/icons-vue"
import TrainingTaskToolbar from "@/views/components/TrainingTaskToolbar.vue"

const TASK_KEY = "industry-demand-analysis"
const { proxy } = getCurrentInstance()

const taskConfig = ref(null)
const saving = ref(false)
const currentStep = ref(1)

const defaultGoals = [
    "掌握PEST模型在行业需求分析中的应用方法",
    "能够从政策、经济、社会、技术四个维度识别行业机会与风险",
    "形成适合产品开发和市场进入的战略建议",
]

const defaultRequirement = "PEST分析用于从宏观环境拆解行业需求，帮助判断产品机会、外部约束和市场进入策略。"
const defaultBackground = "以智能健身镜行业为例，结合政策标准、市场规模、消费趋势和技术条件，完成行业需求分析与战略判断。"

const backgroundLines = [
    "中国“健康中国2030”规划推动家庭健身设备普及，对符合GB/T 38644-2020标准的企业给予15%税收减免。",
    "欧盟CE认证新增EN 62368-1安全标准，并强制要求碳足迹披露（SPI倡议）。",
    "美国FCC认证与关税政策（如25%对华加征关税）驱动供应链向越南、墨西哥转移，利用RCEP规则规避成本。",
    "欧盟《数字健身法案》要求用户数据本地化存储，中国《数据安全法》强制端侧数据处理，避免隐私泄露风险。",
    "2024年全球市场规模达3.51亿美元，预计2031年突破5亿美元（CAGR 5.1%）。",
    "成本结构优化：中国供应链成本较北美低37%，珠三角地区形成显示面板、传感器、ODM组装一体化产业链。",
    "“硬件+订阅”主导：头部厂商ARPU值达18美元/月（如数智引力），商用场景（酒店、健身房）渗透率超60%（如Tempo）。",
    "关税冲击应对：康冠科技采用“中国核心部件+墨西哥组装”模式，降低关税影响。",
    "居家健身刚需化：疫情后62%用户倾向家庭场景训练，智能健身镜租约使用频次达4.7次。",
    "内容需求精细化：Z世代青睐个性化课程（如亲子互动、广场舞），推动课程库扩充至200+品类。",
    "都市人群对“精准健康管理”需求激增，设备需集成体脂、骨骼点追踪（精度±0.5°）及生理指标监测功能。",
    "动作捕捉：3D结构光摄像头+多模态传感器，实现128个骨骼点实时追踪（商汤科技算法精度98.6%）。",
    "交互体验：防眩光AG玻璃（BOE）、双频WiFi6保障4K流畅稳定性，响应延迟<0.5秒。",
    "SDK开放平台（如康冠科技接入200+健身APP）构建软硬件闭环，支持与穿戴设备（心率带、手表）数据同步。",
]

const pestItems = [
    { key: "political", label: "政治环境", placeholder: "归类政策、认证、关税、数据合规等因素" },
    { key: "economic", label: "经济环境", placeholder: "归类市场规模、成本、商业模式、供应链等因素" },
    { key: "social", label: "社会环境", placeholder: "归类用户需求、消费趋势、健康管理和场景变化" },
    { key: "technology", label: "技术环境", placeholder: "归类动作捕捉、交互体验、SDK开放和设备互联能力" },
]

function createComparisons() {
    return [
        {
            dimension: "政策",
            opportunity: "",
            risk: "",
            opportunityHint: "中国税收减免、欧盟碳足迹政策催生绿色技术需求",
            riskHint: "认证成本上升",
        },
        {
            dimension: "经济",
            opportunity: "",
            risk: "",
            opportunityHint: "家庭场景ARPU值年增xx，商用场景留存率提升xx",
            riskHint: "关税致北美市场出货量降18%",
        },
        {
            dimension: "技术",
            opportunity: "",
            risk: "",
            opportunityHint: "端侧AI降低隐私风险，模块化设计使维修成本降xx",
            riskHint: "通用大模型直接调用致内容失控",
        },
        {
            dimension: "社会",
            opportunity: "",
            risk: "",
            opportunityHint: "银发经济（太极课程）、亲子经济（体感游戏）打开增量市场",
            riskHint: "高价订阅制引发抵触",
        },
    ]
}

function createForm() {
    return {
        pest: {
            political: "",
            economic: "",
            social: "",
            technology: "",
        },
        strategy: "",
        comparisons: createComparisons(),
        conclusion: "",
    }
}

const form = ref(createForm())

const taskTitle = computed(() => taskConfig.value?.taskName || "行业需求分析")
const taskBackground = computed(() => taskConfig.value?.background || defaultBackground)
const taskGoals = computed(() => parseArray(taskConfig.value?.objectives, defaultGoals))
const taskRequirement = computed(() => taskConfig.value?.requirements || defaultRequirement)
const trainingSteps = computed(() => parseTrainingArray(taskConfig.value?.steps, []))
const activeStepName = computed(() => trainingSteps.value[currentStep.value - 1] || trainingSteps.value[0] || "")

watch(trainingSteps, (steps) => {
    if (steps.length && currentStep.value > steps.length) {
        currentStep.value = steps.length
    }
})

const progressItems = computed(() => [
    { text: "进行中：PEST四维度归类", status: "doing" },
    { text: "进行中：机会与风险对比", status: "doing" },
    { text: form.value.conclusion ? "已填写：分析结论" : "待完成：分析结论", status: form.value.conclusion ? "done" : "" },
])

onMounted(async () => {
    await loadTaskConfig()
    await loadSavedAnswer()
})

async function loadTaskConfig() {
    try {
        const res = await getTrainingTaskByKey(TASK_KEY)
        taskConfig.value = res?.data || null
    } catch (error) {
        taskConfig.value = null
    }
}

async function loadSavedAnswer() {
    try {
        const res = await getStudentTrainingAnswer(TASK_KEY)
        const answer = res?.data
        if (answer?.currentStep && Number(answer.currentStep) > 0) {
            currentStep.value = Number(answer.currentStep)
        }
        if (answer?.step1Answer) {
            applySavedAnswer(answer.step1Answer)
        }
    } catch (error) {
        // Keep the page usable even when the answer endpoint is unavailable.
    }
}

function parseArray(value, fallback) {
    if (Array.isArray(value)) {
        return value.length ? value : fallback
    }
    if (!value) {
        return fallback
    }
    try {
        const parsed = JSON.parse(value)
        return Array.isArray(parsed) && parsed.length ? parsed : fallback
    } catch (error) {
        const list = String(value)
            .split(/[，,|]/)
            .map((item) => item.trim())
            .filter(Boolean)
        return list.length ? list : fallback
    }
}

function applySavedAnswer(value) {
    try {
        const parsed = JSON.parse(value)
        if (!parsed || typeof parsed !== "object") return
        const nextForm = createForm()
        nextForm.pest = {
            ...nextForm.pest,
            ...(parsed.pest || {}),
        }
        nextForm.strategy = parsed.strategy || ""
        nextForm.conclusion = parsed.conclusion || ""
        if (Array.isArray(parsed.comparisons)) {
            const savedByDimension = parsed.comparisons.reduce((map, row) => {
                if (row?.dimension) {
                    map[row.dimension] = row
                }
                return map
            }, {})
            nextForm.comparisons = createComparisons().map((row) => ({
                ...row,
                opportunity: savedByDimension[row.dimension]?.opportunity || "",
                risk: savedByDimension[row.dimension]?.risk || "",
            }))
        }
        form.value = nextForm
    } catch (error) {
        // Ignore malformed historical answers.
    }
}

function buildOutcome() {
    return {
        title: taskTitle.value,
        pest: form.value.pest,
        strategy: form.value.strategy,
        comparisons: form.value.comparisons.map((row) => ({
            dimension: row.dimension,
            opportunity: row.opportunity,
            risk: row.risk,
        })),
        conclusion: form.value.conclusion,
    }
}

function buildAnswerPayload(saveAction = "SAVE") {
    return {
        step1Answer: JSON.stringify(buildOutcome()),
        currentStep: currentStep.value,
        submitted: saveAction === "SUBMIT",
        saveAction,
    }
}

async function saveAnswer(saveAction = "SAVE", silent = false) {
    if (saving.value) return
    saving.value = true
    try {
        await saveStudentTrainingAnswer(TASK_KEY, buildAnswerPayload(saveAction))
        if (!silent) {
            proxy?.$modal?.msgSuccess(saveAction === "SUBMIT" ? "提交成功" : "已保存")
        }
    } catch (error) {
        if (!silent) {
            proxy?.$modal?.msgError?.(saveAction === "SUBMIT" ? "提交失败" : "保存失败")
        }
    } finally {
        saving.value = false
    }
}

function saveCurrentProgress() {
    return saveAnswer("SAVE")
}

function changeStep(targetStep) {
    const maxStep = trainingSteps.value.length
    if (!maxStep) return
    const next = Math.min(Math.max(Number(targetStep) || 1, 1), maxStep)
    if (next === currentStep.value) return
    currentStep.value = next
    void saveAnswer("SAVE", true)
}

function previousStep() {
    changeStep(currentStep.value - 1)
}

function nextStep() {
    changeStep(currentStep.value + 1)
}

function submitTask() {
    return saveAnswer("SUBMIT")
}

async function resetTraining() {
    form.value = createForm()
    await saveAnswer("RESET")
}

function exportOutcome() {
    const blob = new Blob([JSON.stringify(buildOutcome(), null, 2)], { type: "application/json;charset=utf-8" })
    const url = URL.createObjectURL(blob)
    const link = document.createElement("a")
    link.href = url
    link.download = `${taskTitle.value}-实训成果.json`
    document.body.appendChild(link)
    link.click()
    document.body.removeChild(link)
    URL.revokeObjectURL(url)
    proxy?.$modal?.msgSuccess("导出成功")
}
</script>

<style lang="scss" scoped>
.industry-demand-page {
    --student-accent: #2563eb;
    --student-accent-deep: #1d4ed8;
    --student-accent-light: #3b82f6;
    --student-accent-soft: #eff6ff;
    --student-danger: #ef4444;
    --student-success: #2ba471;
    --student-layer-1: #1d4ed8;
    --student-layer-2: #3b82f6;
    --student-layer-3: #93c5fd;
    --student-panel-border: #e5e7eb;
    --student-card-bg: #ffffff;
    --student-panel-bg: #fafbfc;
    --student-text: #1f2937;
    --student-text-secondary: #6b7280;
    --el-color-primary: #2563eb;
    --el-color-primary-light-3: #60a5fa;
    --el-color-primary-light-5: #93c5fd;
    --el-color-primary-light-7: #bfdbfe;
    --el-color-primary-light-8: #dbeafe;
    --el-color-primary-light-9: #eff6ff;
    --el-color-primary-dark-2: #1d4ed8;
    --el-input-hover-border-color: #3b82f6;
    --el-input-focus-border-color: #2563eb;
    --el-input-focus-ring-color: rgba(59, 130, 246, 0.15);
    --el-textarea-hover-border-color: #3b82f6;
    --el-textarea-focus-border-color: #2563eb;

    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(720px, 1fr) 340px;
    gap: 24px;
    width: 100%;
    max-width: 100%;
    min-height: calc(100vh - 106px);
    margin: 0;
    padding: 24px 24px 32px;
    color: var(--student-text);
    background: #ffffff;
}

.training-core {
    display: grid;
    gap: 10px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

/* ===== 任务头：独立白卡 + 左侧教育蓝竖条 ===== */
.task-header {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 10px;
    padding: 18px 20px 18px 24px;
    border: 1px solid var(--student-panel-border);
    border-radius: 12px;
    background: var(--student-card-bg);
    overflow: hidden;

    &::before {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        width: 4px;
        background: var(--student-accent);
    }
}


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

.goal-bg,
.task-card,
.step-card {
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    display: grid;
    gap: 10px;
}

.goal-bg {

    p,
    li {
        color: #374151;
        font-size: var(--student-fs-body);
        line-height: 1.8;
    }

    p,
    ol {
        margin: 0;
    }

    ol {
        padding-left: 18px;
    }
}

.subtitle-icon {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: var(--student-text);
    font-weight: 800;
}

.subtitle-icon--spaced {
    margin-top: 12px;
}

.workbench-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--student-panel-border);

    h3 {
        margin: 4px 0 8px;
        color: var(--student-text);
        font-size: var(--student-fs-h1);
        font-weight: 800;
        line-height: 1.3;
    }
}

.workbench-actions {
    display: flex;
    flex: 0 0 auto;
    flex-wrap: wrap;
    margin-left: auto;
    justify-content: flex-end;
    gap: 10px;
}

.section-eyebrow {
    margin: 0;
    color: #2563eb;
    font-size: var(--student-fs-caption);
    font-weight: 800;
    line-height: 1.4;
}

.workbench-description {
    margin: 0;
    color: #374151;
    font-size: var(--student-fs-body);
    font-weight: 400;
    line-height: 1.8;
}

.outline-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    height: 36px;
    padding: 0 14px;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    color: var(--student-text);
    background: #eff6ff;
    font-size: var(--student-fs-button);
    font-weight: 800;

    &:hover:not(.is-disabled) {
        transform: translateY(-1px);
        border-color: #2563eb;
        background: #dbeafe;
    }
}

.step-indicator {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0;
    width: calc(100% + 24px);
    margin: 0 -12px 32px;
    padding: 18px 22px;
    border: 1px solid var(--student-panel-border);
    border-radius: 18px;
    background:
        linear-gradient(90deg, #eef5fc, #eef5fc),
        #f0f6fd;
    box-shadow: inset 0 1px 0 rgba(37, 99, 235, 0.08);
    overflow-x: auto;
    scrollbar-width: thin;
}

.step-tab {
    display: flex;
    flex: 1 0 145px;
    align-items: center;
    min-width: 0;
    min-height: 66px;
    padding: 8px 10px;
    border: 1px solid var(--student-panel-border);
    border-radius: 8px;
    color: #6b7280;
    background: #f0f6fd;
    box-shadow: inset 0 1px 0 rgba(37, 99, 235, 0.04);
    font-family: inherit;
    font-size: var(--student-fs-body);
    font-weight: 800;
    cursor: pointer;
    text-align: left;
    transition: transform 0.2s ease, color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;

    &:hover {
        border-color: #2563eb;
        color: var(--student-text);
        background: #eff6ff;
        box-shadow: 0 7px 18px rgba(30, 60, 100, 0.10), inset 0 1px 0 rgba(37, 99, 235, 0.16);
        transform: translateY(-2px);

        .step-action {
            color: #1d4ed8;
        }
    }

    &:focus-visible {
        outline: 2px solid #2563eb;
        outline-offset: 4px;
    }

    &.active {
        border-color: #2563eb;
        color: var(--student-text);
        background: linear-gradient(115deg, rgba(37, 99, 235, 0.14), rgba(37, 99, 235, 0.08));
        box-shadow: 0 0 18px rgba(37, 99, 235, 0.22), inset 0 1px 0 rgba(37, 99, 235, 0.2);

        .step-marker {
            border-color: #2563eb;
            color: #ffffff;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.14), 0 0 18px rgba(37, 99, 235, 0.4);
        }
    }

    &.complete {
        color: #374151;

        .step-marker {
            border-color: #2563eb;
            color: #ffffff;
            background: #2563eb;
            box-shadow: 0 0 12px #2563eb;
        }
    }
}

.step-marker {
    display: inline-flex;
    flex: 0 0 38px;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid #bfdbfe;
    border-radius: 50%;
    color: #6b7280;
    background: #f0f6fd;
    box-shadow: inset 0 0 12px rgba(37, 99, 235, 0.08);
    font-size: var(--student-fs-caption);
    font-weight: 900;
    letter-spacing: 0.04em;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.step-copy {
    display: grid;
    gap: 4px;
    min-width: 0;
    margin-left: 10px;
}

.step-name {
    display: -webkit-box;
    overflow: hidden;
    color: inherit;
    font-size: var(--student-fs-body);
    font-weight: 800;
    line-height: 1.25;
    text-overflow: ellipsis;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.step-action {
    color: #1d4ed8;
    font-size: var(--student-fs-caption);
    font-weight: 800;
    letter-spacing: 0.06em;
    line-height: 1;
    transition: color 0.2s ease;
}

.step-connector {
    position: relative;
    flex: 0 1 40px;
    min-width: 18px;
    height: 2px;
    margin: 0 8px;
    overflow: visible;
    background: var(--student-panel-border);
}

.step-connector::after {
    position: absolute;
    top: 50%;
    right: -1px;
    width: 6px;
    height: 6px;
    border-top: 1px solid #2563eb;
    border-right: 1px solid #2563eb;
    content: "";
    transform: translateY(-50%) rotate(45deg);
}

.step-tab.complete+.step-connector {
    background: #2563eb;
    box-shadow: 0 0 9px rgba(37, 99, 235, 0.3);

    &::after {
        border-color: #2563eb;
    }
}

.step-card {
    margin-bottom: 0;
}

.step-title-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 14px;

    h3 {
        margin: 4px 0 0;
        color: var(--student-text);
        font-size: var(--student-fs-h2);
        font-weight: 900;
    }
}

.background-block {
    padding: 16px;
    border: 1px solid var(--student-panel-border);
    border-radius: 22px;
    background: #f8fbfe;

    h4 {
        margin: 0 0 12px;
        color: #374151;
        font-size: var(--student-fs-body);
        font-weight: 800;
    }

    p {
        margin: 0 0 8px;
        color: #374151;
        font-size: var(--student-fs-body);
        line-height: 1.72;
    }

    p:last-child {
        margin-bottom: 0;
    }
}

.task-desc {
    margin: 22px 0 18px;
    color: #374151;
    font-size: var(--student-fs-body);
    line-height: 1.8;
}

.pest-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin: 20px 0;
}

.pest-card {
    min-height: 196px;
    padding: 16px;
    border: 1px solid var(--student-panel-border);
    border-radius: 20px;
    background: #f8fbfe;
}

.pest-card__title {
    min-height: 22px;
    margin-bottom: 12px;
    color: var(--student-text);
    font-size: var(--student-fs-body);
    font-weight: 800;
}

.pest-input,
.long-textarea,
.comparison-row textarea {
    width: 100%;
    border: 1px solid #c9d8e8;
    outline: none;
    resize: vertical;
    color: #374151;
    background: #ffffff;
    font-size: var(--student-fs-body);
    line-height: 1.65;
    transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;

    &::placeholder {
        color: #6b7280;
        opacity: 0.9;
    }

    &:focus {
        border-color: #2563eb;
        background: #ffffff;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.13);
    }
}

.pest-input {
    min-height: 128px;
    padding: 12px 14px;
    border-radius: 14px;
}

.field-block {
    display: block;
    margin-top: 22px;

    span {
        display: block;
        margin-bottom: 10px;
        color: #374151;
        font-size: var(--student-fs-body);
        line-height: 1.8;
    }
}

.long-textarea {
    min-height: 150px;
    padding: 14px 16px;
    border-radius: 14px;
}

.comparison-block {
    margin-top: 26px;
}

.comparison-title {
    margin: 0 0 12px;
    color: #374151;
    font-size: var(--student-fs-body);
    font-weight: 800;
}

.comparison-table {
    overflow: hidden;
    border: 1px solid var(--student-panel-border);
    border-radius: 22px;
    background: #f8fbfe;
}

.comparison-row {
    display: grid;
    grid-template-columns: 140px minmax(0, 1fr) minmax(0, 1fr);
    border-top: 1px solid var(--student-panel-border);

    >div,
    >textarea {
        min-height: 76px;
        border: 0;
        border-right: 1px solid var(--student-panel-border);
        border-radius: 0;
    }

    >textarea {
        padding: 16px;
        text-align: center;
    }

    > :last-child {
        border-right: 0;
    }
}

.comparison-head {
    border-top: 0;
    color: var(--student-text);
    background: #dbeafe;
    font-weight: 900;

    div {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 48px;
    }
}

.dimension-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--student-text);
    font-weight: 800;
}

.training-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 52px;
    margin-top: 36px;
}

.training-actions :deep(.training-action) {
    min-width: 172px;
    height: 36px;
    min-height: 36px;
    padding: 0 14px;
    border: 1px solid #2563eb;
    border-radius: 8px;
    color: #374151;
    background: #eff6ff;
    box-shadow: none;
    font-size: var(--student-fs-h1);
    font-weight: 900;
    line-height: 1;
    letter-spacing: 0;
    text-shadow: none;
}

.training-actions :deep(.training-action span) {
    display: inline-flex;
    align-items: center;
    color: inherit;
    font-size: inherit;
    line-height: 1;
}

.training-actions :deep(.training-action--submit),
.training-actions :deep(.training-action--reset),
.training-actions :deep(.training-action--export) {
    border-color: #2563eb;
    color: #374151;
    background: #eff6ff;
}

.training-actions :deep(.training-action:hover:not(.is-disabled)) {
    border-color: #1d4ed8;
    color: var(--student-text);
    background: #dbeafe;
}

.step-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 22px;
}

.step-actions :deep(.step-action-btn) {
    min-height: 36px;
    height: 36px;
    padding: 0 14px;
    border-radius: 8px;
    font-size: var(--student-fs-button);
    font-weight: 800;
}

.step-actions :deep(.step-action-btn--previous) {
    border-color: #bfdbfe;
    color: var(--student-text);
    background: #eff6ff;
}

.step-actions :deep(.step-action-btn--save),
.step-actions :deep(.step-action-btn--next) {
    border-color: #2563eb;
    color: #ffffff;
    background: linear-gradient(95deg, #2563eb, #1d4ed8);
}

.step-actions :deep(.step-action-btn:hover:not(.is-disabled)) {
    transform: translateY(-1px);
}

.step-actions :deep(.step-action-btn.is-disabled) {
    opacity: 0.45;
    cursor: not-allowed;
}

@media (max-width: 1100px) {
    .industry-demand-page {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .pest-grid {
        grid-template-columns: 1fr;
        margin: 20px 0;
    }

    .industry-demand-page {
        padding: 14px 14px 18px;
    }

    .training-core {
        padding: 18px;
        border-radius: 24px;
    }

    .workbench-head,
    .workbench-actions,
    .step-title-row {
        flex-direction: column;
        align-items: stretch;
    }

    .workbench-actions :deep(.material-download),
    .workbench-actions .outline-action {
        width: 100%;
    }

    .step-indicator {
        width: 100%;
        margin: 0 0 32px;
        padding: 16px;
        overflow: visible;
        flex-direction: column;
        align-items: stretch;
        border-radius: 20px;
    }

    .step-tab {
        flex: 0 0 auto;
        width: 100%;
        min-width: 0;
    }

    .step-connector {
        flex: 0 0 20px;
        align-self: flex-start;
        width: 2px;
        min-width: 0;
        height: 20px;
        margin: 4px 0 4px 18px;
    }

    .step-connector::after {
        top: auto;
        right: auto;
        bottom: -1px;
        left: 50%;
        transform: translateX(-50%) rotate(135deg);
    }

    .step-actions,
    .training-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
    }

    .step-actions :deep(.step-action-btn),
    .training-actions :deep(.training-action) {
        width: 100%;
    }

    .comparison-row {
        grid-template-columns: 92px minmax(0, 1fr) minmax(0, 1fr);
    }
}

.workbench-head--actions-only {
    justify-content: flex-end;
    margin-bottom: 18px;
    padding-bottom: 0;
    border-bottom: 0;
}
</style>

<style lang="scss">
/* ============================================================
 * 画布背景
 * ============================================================ */
#app .studentLayout .app-main:has(.industry-demand-page) {
    background: #ffffff !important;
}

/* ============================================================
 * 步骤导航：分段连接胶囊
 * ============================================================ */
#app .studentLayout section.app-main:has(.industry-demand-page) .step-indicator {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: stretch !important;
    justify-content: center !important;
    gap: 0 !important;
    width: 100% !important;
    margin: 0 0 20px !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 {


        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 8px !important;
        min-width: 0 !important;
        height: auto !important;
        min-height: 40px !important;
        margin: 0 !important;
        padding: 8px 14px !important;
        border: 1px solid #e5e7eb !important;
        border-right: none !important;
        border-radius: 0 !important;
        background: #ffffff !important;
        box-shadow: none !important;
        color: #6b7280 !important;
        font-size: var(--student-fs-body) !important;
        font-weight: 600 !important;
        line-height: 1.3 !important;
        white-space: nowrap !important;
        text-align: center !important;
        cursor: pointer;
        transition: all 0.16s ease !important;

        &:first-child {
            border-radius: 8px 0 0 8px !important;
        }

        &:last-child {
            border-radius: 0 8px 8px 0 !important;
            border-right: 1px solid #e5e7eb !important;
        }

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

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

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

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

        &:hover:not(.active):not(.complete) {
            border-color: #2563eb !important;
            background: #eff6ff !important;
            color: #2563eb !important;
            z-index: 1 !important;

            .step-marker {
                background: #2563eb !important;
                color: #ffffff !important;
            }
        }

        &.complete:not(.active) {
            border-color: #e5e7eb !important;
            color: #374151 !important;

            .step-marker {
                background: rgba(43, 164, 113, 0.12) !important;
                color: #16915f !important;
            }

            &:hover {
                border-color: #2ba471 !important;
                background: #f0fdf6 !important;
                z-index: 1 !important;

                .step-marker {
                    background: #2ba471 !important;
                    color: #ffffff !important;
                }
            }
        }

        &.active {
            border-color: #2563eb !important;
            background: #2563eb !important;
            color: #ffffff !important;
            font-weight: 700 !important;
            z-index: 2 !important;

            .step-marker {
                background: #ffffff !important;
                color: #2563eb !important;
            }

            &:hover {
                background: #1d4ed8 !important;
                border-color: #1d4ed8 !important;
            }
        }
    }
}

/* 窄屏：横向滑动 */
@media (max-width: 900px) {
    #app .studentLayout section.app-main:has(.industry-demand-page) .step-indicator {
        justify-content: flex-start !important;
        overflow-x: auto !important;
    }

    #app .studentLayout section.app-main:has(.industry-demand-page) .step-indicator .step-tab {
        flex: 0 0 140px !important;
        max-width: none !important;
    }
}

/* ============================================================
 * 共用组件换肤：TrainingMaterialButton + outline-action → 教育蓝
 * ============================================================ */
.industry-demand-page .workbench-actions .material-button.el-button {
    height: 34px !important;
    min-height: 34px !important;
    border: 1px solid rgba(37, 99, 235, 0.35) !important;
    border-radius: 8px !important;
    color: #2563eb !important;
    background: #ffffff !important;
    font-size: var(--student-fs-body) !important;
    font-weight: 600 !important;
    transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease !important;

    &:hover {
        border-color: #2563eb !important;
        color: #2563eb !important;
        background: #eff6ff !important;
        box-shadow: 0 2px 6px rgba(37, 99, 235, 0.12) !important;
    }

    &.is-plain {
        border-color: #e5e7eb !important;
        color: #9ca3af !important;

        &:hover {
            border-color: #e5e7eb !important;
            color: #9ca3af !important;
            background: #ffffff !important;
            box-shadow: none !important;
        }
    }
}

#app .studentLayout section.app-main:has(.industry-demand-page) .workbench-actions>button.outline-action {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    height: 34px !important;
    min-height: 34px !important;
    padding: 0 14px !important;
    border: 1px solid rgba(37, 99, 235, 0.35) !important;
    border-radius: 8px !important;
    color: #2563eb !important;
    background: #ffffff !important;
    font-size: var(--student-fs-body) !important;
    font-weight: 600 !important;
    line-height: 1 !important;
    transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease !important;
}

#app .studentLayout section.app-main:has(.industry-demand-page) .workbench-actions>button.outline-action:hover {
    border-color: #2563eb !important;
    color: #2563eb !important;
    background: #eff6ff !important;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.12) !important;
    transform: none !important;
}

/* ============================================================
 * step-actions + training-actions（本页用 el-button :deep 覆盖）
 * ============================================================ */
#app .studentLayout section.app-main:has(.industry-demand-page) .step-actions .el-button,
#app .studentLayout section.app-main:has(.industry-demand-page) .training-actions .el-button {
    height: 34px !important;
    min-height: 34px !important;
    border-radius: 8px !important;
    font-weight: 700 !important;
    font-size: var(--student-fs-body) !important;
    border: 1px solid rgba(37, 99, 235, 0.35) !important;
    background: #ffffff !important;
    color: #2563eb !important;
    padding: 0 14px !important;
    transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease, color 0.16s ease !important;
    box-shadow: none !important;
}

#app .studentLayout section.app-main:has(.industry-demand-page) .step-actions .el-button:hover:not(.is-disabled),
#app .studentLayout section.app-main:has(.industry-demand-page) .training-actions .el-button:hover:not(.is-disabled) {
    transform: translateY(-1px) !important;
    border-color: #2563eb !important;
    background: #eff6ff !important;
    color: #2563eb !important;
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.12) !important;
}

#app .studentLayout section.app-main:has(.industry-demand-page) .step-actions .step-action-btn--save.el-button,
#app .studentLayout section.app-main:has(.industry-demand-page) .step-actions .step-action-btn--next.el-button,
#app .studentLayout section.app-main:has(.industry-demand-page) .training-actions .training-action--submit.el-button {
    border-color: #2563eb !important;
    background: #2563eb !important;
    color: #ffffff !important;
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.28) !important;
}

#app .studentLayout section.app-main:has(.industry-demand-page) .step-actions .step-action-btn--save.el-button:hover:not(.is-disabled),
#app .studentLayout section.app-main:has(.industry-demand-page) .step-actions .step-action-btn--next.el-button:hover:not(.is-disabled),
#app .studentLayout section.app-main:has(.industry-demand-page) .training-actions .training-action--submit.el-button:hover:not(.is-disabled) {
    border-color: #1d4ed8 !important;
    background: #1d4ed8 !important;
    color: #ffffff !important;
    box-shadow: 0 5px 14px rgba(29, 78, 216, 0.32) !important;
}

#app .studentLayout section.app-main:has(.industry-demand-page) .training-actions .training-action--reset.el-button {
    border-color: #e5e7eb !important;
    background: #f3f4f6 !important;
    color: #374151 !important;
    box-shadow: none !important;
}

#app .studentLayout section.app-main:has(.industry-demand-page) .training-actions .training-action--reset.el-button:hover:not(.is-disabled) {
    border-color: #2563eb !important;
    background: #eff6ff !important;
    color: #2563eb !important;
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.12) !important;
}

#app .studentLayout section.app-main:has(.industry-demand-page) .step-actions .el-button.is-disabled,
#app .studentLayout section.app-main:has(.industry-demand-page) .training-actions .el-button.is-disabled {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    transform: none !important;
}
</style>