dianshang-qianduan/src/views/components/TrainingIntro.vue

<template>
  <section class="training-intro">
    <div class="training-intro__head">
      <div>
        <p class="training-intro__eyebrow">Training Brief</p>
        <h2>{{ displayTitle }}</h2>
      </div>
      <span class="training-intro__hint">实训说明</span>
    </div>
    <TrainingTaskBrief
      :background="briefBackground"
      :goals="remoteGoals"
      :requirements="briefRequirements"
      :material-name="remoteTask?.materialName"
      :material-url="remoteTask?.materialUrl"
    />

    <nav v-if="remoteSteps.length" class="step-indicator training-intro__steps" aria-label="实训步骤">
      <button
        v-for="(step, index) in remoteSteps"
        :key="`${step}-${index}`"
        type="button"
        :class="['step-tab', { active: activeStep === index }]"
        @click="activeStep = index"
      >
        <span>{{ step }}</span>
      </button>
    </nav>
  </section>
</template>

<script setup>
import { getTrainingTaskByKey } from "@/api/trainingTask";
import { parseTrainingArray, resolveTrainingTaskKey } from "@/views/training/taskKeyMap";
import TrainingTaskBrief from "@/views/components/TrainingTaskBrief.vue";

const route = useRoute();

const props = defineProps({
  title: {
    type: String,
    default: "实训任务",
  },
  taskKey: {
    type: String,
    default: "",
  },
});

const remoteTask = ref(null);
const activeStep = ref(0);
const currentTaskKey = computed(() => resolveTrainingTaskKey(route, props.taskKey));
const displayTitle = computed(() => remoteTask.value?.taskName || props.title);
const remoteGoals = computed(() => parseTrainingArray(remoteTask.value?.objectives));
const remoteSteps = computed(() => parseTrainingArray(remoteTask.value?.steps).slice(0, 4));
const briefBackground = computed(() => remoteTask.value?.background || "");
const briefRequirements = computed(() => remoteTask.value?.requirements || "");

watch(
  () => currentTaskKey.value,
  loadRemoteTask,
  { immediate: true }
);

async function loadRemoteTask(taskKey) {
  remoteTask.value = null;
  if (!taskKey) return;
  try {
    const res = await getTrainingTaskByKey(taskKey);
    remoteTask.value = res?.data || null;
  } catch (error) {
    remoteTask.value = null;
  }
}
</script>

<style lang="scss" scoped>
/* 教育蓝 · 精炼文档风：纯白画布 + 教育蓝点缀（对齐 new-product-survey） */
.training-intro {
  margin-bottom: 24px;
  overflow: hidden;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: none;

  &__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px 14px 24px;
    border-bottom: 1px solid #e5e7eb;
    position: relative;

    &::before {
      content: "";
      position: absolute;
      top: 0;
      bottom: 0;
      left: 0;
      width: 4px;
      background: #2563eb;
    }

    h2 {
      margin: 4px 0 0;
      color: #1f2937;
      font-size: var(--student-fs-display);
      line-height: 1.4;
      font-weight: 700;
      letter-spacing: -0.01em;
    }
  }

  &__eyebrow {
    margin: 0;
    color: #2563eb;
    font-size: var(--student-fs-caption);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-family: var(--student-font-data);
  }

  &__hint {
    flex: 0 0 auto;
    padding: 4px 10px;
    border: 1px solid #bfdbfe;
    border-radius: 999px;
    color: #1d4ed8;
    background: #eff6ff;
    font-size: var(--student-fs-caption);
    font-weight: 600;
  }

  &__body {
    display: grid;
    gap: 14px;
    margin: 0 24px 24px;
    padding: 18px 20px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    background: #fafbfc;
    color: #374151;
    font-size: var(--student-fs-body);
    line-height: 1.65;

    p,
    ol {
      margin: 0;
    }

    ol {
      padding-left: 18px;
    }
  }

  &__section + &__section {
    padding-top: 12px;
    border-top: 1px solid #e5e7eb;
  }

  &__subtitle {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: #1f2937;
      font-weight: 700;
  }

  &__steps {
    margin: 0 24px 20px !important;
  }
}

/* 步骤导航：胶囊分段 + 教育蓝激活态（覆盖全局墨黑 !important 规则） */
.training-intro__steps.step-indicator {
  display: flex !important;
  flex-wrap: nowrap !important;
  align-items: stretch !important;
  justify-content: center !important;
  gap: 0 !important;
  width: auto !important;
  padding: 0 !important;
  border: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;

  .step-tab {
    flex: 1 1 0 !important;
    max-width: 240px !important;
    min-width: 0 !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !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: 13px !important;
    font-weight: 600 !important;
    line-height: 1.3 !important;
    white-space: normal !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;
    }

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

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

      &:hover {
        background: #1d4ed8 !important;
        border-color: #1d4ed8 !important;
      }
    }
  }
}
</style>