function kpiCard(label, value, unit, desc, trend, widthPercent, tone = "up") {
      /**
       * 集团级页面渲染模块。
       * 负责集团总览、集团上线率卡片、企业分析、指标分析和集团上线统计弹窗。
       */
      return `
        <article class="kpi-card">
          ${trend ? `<div class="kpi-trend ${tone === "down" ? "down" : ""}">${trend}</div>` : ""}
          <div class="kpi-label">${label}</div>
          <div class="kpi-value">${value}<span class="kpi-unit">${unit}</span></div>
          <div class="risk-band"><span style="width:${clamp(widthPercent, 0, 100)}%"></span></div>
          <div class="kpi-desc">${desc}</div>
        </article>
      `;
    }

    function clickableKpiCard(label, value, unit, desc, action, widthPercent, trend = "") {
      return `
        <article class="kpi-card chart-click" data-action="${action}">
          ${trend ? `<div class="kpi-trend">${trend}</div>` : ""}
          <div class="kpi-label">${label}</div>
          <div class="kpi-value">${value}<span class="kpi-unit">${unit}</span></div>
          <div class="risk-band"><span style="width:${clamp(widthPercent, 0, 100)}%"></span></div>
          <div class="kpi-desc">${desc}</div>
        </article>
      `;
    }

    /**
     * 集团项目上线率卡片。
     * 数值只来自集团监控接口，接口失败时显示错误状态。
     */
    function onlineKpiCard(summary) {
      const trendText = projectMasterDataState.loading ? "加载中" : `${toSafeNumber(summary.onlineRate).toFixed(2)}%`;
      const statusText = projectMasterDataState.error
        ? `接口请求失败：${projectMasterDataState.error}`
        : "上线项目/申请不用/应使用项目/项目总数";
      return `
        <article class="kpi-card chart-click" data-action="group-online-stats">
          <div class="kpi-trend">${trendText}</div>
          <div class="kpi-label">集团项目上线率</div>
          <div class="kpi-value">${summary.proInfoText || `${summary.onlineActual}/${summary.noNeedProjectCount}/${summary.onlineExpected}`}</div>
          <div class="risk-band"><span style="width:${clamp(summary.onlineRate, 0, 100)}%"></span></div>
          <div class="kpi-desc">${statusText}</div>
        </article>
      `;
    }

    /**
     * 面包屑渲染。
     * 根据 state.view 组合集团、企业、项目、指标穿透层级，并附带当前维度和系统，方便用户确认筛选上下文。
     */
    function renderBreadcrumbs() {
      const parts = [`<span class="crumb clickable" data-action="group">集团总览</span>`];
      if (state.view === "enterprise" || state.view === "project") {
        parts.push(`<span>›</span><span class="crumb clickable" data-action="enterprise" data-enterprise="${state.enterpriseName}">${state.enterpriseName}</span>`);
      }
      if (state.view === "project") {
        const projectName = projectMonitoringState.data?.MetricProjectInfo?.ProjectShortName
          || projectMonitoringState.data?.MetricProjectInfo?.ProjectName
          || "项目明细";
        parts.push(`<span>›</span><span class="crumb">${projectName}</span>`);
      }
      if (state.view === "indicatorTrend" || state.view === "indicatorEnterprise" || state.view === "indicatorProject") {
        const indicator = getSelectedIndicator();
        parts.push(`<span>›</span><span class="crumb clickable" data-action="indicator-trend">${indicator.name}</span>`);
      }
      if (state.view === "indicatorProject") {
        parts.push(`<span>›</span><span class="crumb">${state.enterpriseName}</span>`);
      }
      parts.push(`<span class="crumb">当前维度：${dimLabel()}</span>`);
      parts.push(`<span class="crumb">当前系统：${systemLabel()}</span>`);
      breadcrumbs.innerHTML = parts.join("");
    }

    /**
     * 全局主渲染入口。
     * 事件模块只改 state，然后调用 render；这里集中决定当前应该渲染哪个视图，避免分散刷新局部 DOM。
     */
    function render() {
      applySystemVisibility();
      document.querySelectorAll("[data-dim]").forEach((button) => {
        button.classList.toggle("active", button.dataset.dim === state.dimension);
      });
      document.querySelectorAll("[data-system]").forEach((button) => {
        button.classList.toggle("active", button.dataset.system === state.system);
      });
      renderBreadcrumbs();
      updateDataDateDisplay();
      if (state.view === "group") renderGroupView();
      if (state.view === "enterprise") renderEnterpriseView();
      if (state.view === "project") renderProjectView();
      if (state.view === "indicatorTrend") app.innerHTML = renderIndicatorTrendView();
      if (state.view === "indicatorProject") app.innerHTML = renderIndicatorProjectView();
      renderDrillModal();
    }

    /**
     * 集团总览主视图。
     * 顶部卡片展示集团汇总，中部图表支持企业下钻，底部指标区支持指标穿透和集团报告预览。
     */
    function renderGroupView() {
      const summary = groupSummary();
      const indicators = getWarningIndicators();
      const analysisIndicators = projectMasterDataState.metricDatas.length ? projectMasterDataState.metricDatas : indicators;
      const activeEnterprises = getGroupEnterpriseModels();

      app.innerHTML = `
        <section class="kpi-grid">
          ${onlineKpiCard(summary)}
          ${clickableKpiCard("预立项项目数", fmtNumber(summary.preProjectTotal), "个", "点击查看集团项目上线统计。", "group-online-stats", clamp(summary.preProjectTotal / 2, 0, 100))}
          ${clickableKpiCard("待建项目数", fmtNumber(summary.pendingTotal), "个", "点击查看集团项目上线统计。", "group-online-stats", clamp(summary.pendingTotal, 0, 100))}
          ${clickableKpiCard("未达标项目数", fmtNumber(summary.belowStandardProjects), "个", "指标使用率低于 80% 的项目。", "below-standard-projects", clamp(100 - summary.belowStandardProjects, 0, 100))}
          ${clickableKpiCard("项目指标使用率", fmtPercent(summary.usageRate), "", "点击查看单位项目指标使用情况。", "group-unit-metric-usages", summary.usageRate)}
          ${kpiCard("项目指标准确率", fmtPercent(summary.accuracyRate), "", "", "", summary.accuracyRate)}
        </section>

        <section class="indicator-strip">
          ${renderFocusIndicators(indicators.slice(0, 8), 0, { highlightHigh: false })}
        </section>

        <article class="panel trend-panel group-trend-panel">
          <div class="panel-header">
            <div>
              <h2 class="panel-title">集团三率趋势曲线</h2>
              <div class="panel-note">近 7 日集团上线率、使用率、准确率变化。</div>
            </div>
            <div class="legend">
              <span class="legend-item"><span class="dot" style="background:${COLORS.online}"></span>上线</span>
              <span class="legend-item"><span class="dot" style="background:${COLORS.usage}"></span>使用</span>
              <span class="legend-item"><span class="dot" style="background:${COLORS.accuracy}"></span>准确</span>
            </div>
          </div>
          <div class="chart-box">${renderGroupTrendChart(activeEnterprises)}</div>
        </article>

        <section class="group-bottom-grid">
          <div class="group-left-stack">
            <article class="panel">
              <div class="panel-header">
                <div>
                  <h2 class="panel-title">企业分析</h2>
                  <div class="panel-note">按${dimLabel()}展示${systemLabel()}系统的企业上线率、使用率、准确率。点击企业柱子下钻到企业看板。</div>
                </div>
                <div class="legend">
                  <span class="legend-item"><span class="dot" style="background:${COLORS.online}"></span>上线率</span>
                  <span class="legend-item"><span class="dot" style="background:${COLORS.usage}"></span>使用率</span>
                  <span class="legend-item"><span class="dot" style="background:${COLORS.accuracy}"></span>准确率</span>
                </div>
              </div>
              <div class="chart-box">${activeEnterprises.length ? renderGroupedRateChart(activeEnterprises, "enterprise", { height: 132 }) : '<div class="empty-state compact-empty">暂无企业分析数据</div>'}</div>
            </article>

            <article class="panel usage-report-panel chart-click" data-action="group-online-stats">
              <div class="panel-header">
                <div>
                  <h2 class="panel-title">集团在建项目使用分析报告</h2>
                </div>
                <div class="panel-tools">
                  <button type="button" class="more-btn" data-action="group-online-stats">查看</button>
                </div>
              </div>
            </article>
          </div>
          <article class="panel risk-panel">
            <div class="panel-header">
              <div>
                <h2 class="panel-title">指标分析</h2>
              </div>
              <div class="panel-tools">
                <button type="button" class="more-btn" data-action="more-indicators">更多</button>
              </div>
            </div>
            ${renderIndicatorAnalysis(analysisIndicators)}
          </article>
        </section>
      `;
    }

    /**
     * 顶部重点指标条。
     * 每张指标卡都带 data-indicator，事件代理会据此打开指标趋势或企业内项目穿透弹窗。
     */
    function renderFocusIndicators(items, offset, options = {}) {
      const highlightHigh = options.highlightHigh !== false;
      return items.map((item, index) => `
        <article class="warning-card chart-click ${highlightHigh && offset + index < 2 ? "high" : ""}" title="${item.name}" data-indicator="${escapeHtmlAttr(item.name)}" data-indicator-field="${escapeHtmlAttr(resolveMetricField(item.name, item.field))}">
          <div class="warning-name">${item.name}</div>
          <div class="warning-lines">
            <span>指标使用率：<strong>${item.usageRate}%</strong></span>
            <span>使用项目数：<strong>${item.projects}</strong></span>
          </div>
        </article>
      `).join("");
    }

    /**
     * 指标分析中的迷你进度条。
     * value 控制条宽，displayValue 控制右侧展示文案，便于同一组件同时展示百分比和项目数量。
     */
    function miniRate(label, value, color, displayValue = `${Math.round(value)}%`) {
      return `
        <div class="mini-bar">
          <span>${label}</span>
          <span class="mini-track"><span style="width:${value}%;background:${color}"></span></span>
          <strong>${displayValue}</strong>
        </div>
      `;
    }

    /**
     * 集团指标分析列表。
     * 以项目覆盖量、使用率、准确率三条迷你进度条展示指标风险，用于快速挑出需要穿透的指标。
     */
    function renderIndicatorAnalysis(indicators) {
      const maxProjects = Math.max(...indicators.map((item) => item.projects), 1);
      return `
        <div class="risk-summary">
          ${indicators.slice(0, 8).map((item) => {
            return `
              <div class="risk-item" data-indicator="${escapeHtmlAttr(item.name)}" data-indicator-field="${escapeHtmlAttr(resolveMetricField(item.name, item.field))}">
                <div class="risk-name">${item.name}</div>
                <div class="risk-bars">
                  ${miniRate("项目", Math.round((item.projects / maxProjects) * 100), COLORS.online, item.projects)}
                  ${miniRate("使用", item.usageRate, COLORS.usage)}
                  ${miniRate("准确", indicatorAccuracy(item), COLORS.accuracy)}
                </div>
              </div>
            `;
          }).join("")}
        </div>
      `;
    }

    /**
     * 企业指标分析列表。
     * 与集团指标列表共用展示结构，但风险文案更偏整改和跟踪，用于企业页面的责任短板展示。
     */
    function renderEnterpriseIndicatorAnalysis(items) {
      const maxProjects = Math.max(...items.map((item) => item.projects), 1);
      return `
        <div class="risk-summary">
          ${items.map((item) => {
            return `
              <div class="risk-item" data-indicator="${escapeHtmlAttr(item.name)}" data-indicator-field="${escapeHtmlAttr(resolveMetricField(item.name, item.field))}">
                <div class="risk-name">${item.name}</div>
                <div class="risk-bars">
                  ${miniRate("项目", Math.round((item.projects / maxProjects) * 100), COLORS.online, item.projects)}
                  ${miniRate("使用", item.usageRate, COLORS.usage)}
                  ${miniRate("准确", item.accuracyRate, COLORS.accuracy)}
                </div>
              </div>
            `;
          }).join("")}
        </div>
      `;
    }

    /**
     * 集团上线统计弹窗表格。
     * 表格行统一从 getProjectMasterRecords 读取接口数据。
     * 国际、生态单位在这里加 green-row，高亮规则集中在表格渲染层。
     */
    function renderUsageReportTable(list) {
      const rows = getProjectMasterRecords();
      const summary = getProjectMasterSummary();
      const statusText = projectMasterDataState.loading
        ? `<div class="table-status">正在获取接口数据...</div>`
        : projectMasterDataState.error
          ? `<div class="table-status error">接口请求失败：${projectMasterDataState.error}</div>`
          : "";
      if (!rows.length) {
        return `${statusText}<div class="empty-state">暂无集团项目上线统计数据</div>`;
      }
      const bodyRows = rows.map((row) => ({
        unit: row.name,
        cells: [
          row.onlineAutoTotal,
          row.onlineReportedTotal,
          fmtFixedPercent(row.onlineRate || projectMasterOnlineRate(row), 2),
          row.total,
          row.linkedTotal,
          row.preProjectTotal,
          row.pendingTotal,
          Math.max(row.total - row.linkedTotal - row.preProjectTotal - row.pendingTotal, 0),
          row.noNeedTotal,
          row.noNeedCompletedTotal,
          row.noNeedStoppedTotal,
          row.noNeedRestrictedTotal,
          row.masterProjectCount
        ],
        webUrl: resolveProjectMasterWebUrl(row)
      }));
      return `
        ${statusText}
        <div class="table-wrap">
          <table class="project-master-table">
            <thead>
              <tr>
                <th rowspan="2">企业简称</th>
                <th colspan="2">上线项目数</th>
                <th rowspan="2">上线率</th>
                <th colspan="5">应使用项目数</th>
                <th colspan="4">申请不用</th>
                <th rowspan="2">主数据项目数</th>
              </tr>
              <tr>
                <th>自动取值</th>
                <th>定期填报</th>
                <th>总数</th>
                <th>已关联项目</th>
                <th>预立项项目</th>
                <th>待建项目</th>
                <th>条件受限</th>
                <th>总数</th>
                <th>已完工</th>
                <th>停缓建</th>
                <th>条件受限</th>
              </tr>
            </thead>
            <tbody>
              ${bodyRows.map((row) => {
                const unit = row.unit || "";
                const rowClass = [
                  unit.includes("国际") || unit.includes("生态") ? "green-row" : ""
                ].filter(Boolean).join(" ");
                const unitCell = /^https?:\/\//i.test(row.webUrl)
                  ? `<a class="table-link" href="${escapeHtmlAttr(row.webUrl)}" target="_blank" rel="noopener noreferrer">${unit}</a>`
                  : unit;
                return `
                <tr class="${rowClass}">
                  <td>${unitCell}</td>
                  ${row.cells.map((cell) => `<td class="num">${cell}</td>`).join("")}
                </tr>
              `;
              }).join("")}
              <tr class="summary-row">
                <td>合计</td>
                ${["onlineAutoTotal", "onlineReportedTotal"].map((key) => `<td class="num">${rows.reduce((sum, row) => sum + toSafeNumber(row[key]), 0)}</td>`).join("")}
                <td class="num">${fmtFixedPercent(summary.onlineRate, 2)}</td>
                <td class="num">${rows.reduce((sum, row) => sum + toSafeNumber(row.total), 0)}</td>
                <td class="num">${rows.reduce((sum, row) => sum + toSafeNumber(row.linkedTotal), 0)}</td>
                <td class="num">${summary.preProjectTotal}</td>
                <td class="num">${summary.pendingTotal}</td>
                <td class="num">${rows.reduce((sum, row) => sum + Math.max(row.total - row.linkedTotal - row.preProjectTotal - row.pendingTotal, 0), 0)}</td>
                <td class="num">${summary.noNeedProjectCount}</td>
                <td class="num">${rows.reduce((sum, row) => sum + toSafeNumber(row.noNeedCompletedTotal), 0)}</td>
                <td class="num">${rows.reduce((sum, row) => sum + toSafeNumber(row.noNeedStoppedTotal), 0)}</td>
                <td class="num">${rows.reduce((sum, row) => sum + toSafeNumber(row.noNeedRestrictedTotal), 0)}</td>
                <td class="num">${rows.reduce((sum, row) => sum + toSafeNumber(row.masterProjectCount), 0)}</td>
              </tr>
            </tbody>
          </table>
        </div>
      `;
    }

    function renderBelowStandardProjectListModal() {
      const enterprise = state.enterpriseName ? getEnterprise(state.enterpriseName) : null;
      const rows = getBelowStandardProjects(enterprise);
      const title = enterprise ? `${enterprise.name} · 未达标项目清单` : "集团未达标项目清单";
      if (!rows.length) {
        return `
          <section class="panel drill-panel">
            <div class="panel-header"><div><h2 class="panel-title">${title}</h2></div></div>
            <div class="empty-state">当前暂无指标使用率低于 80% 的项目。</div>
          </section>
        `;
      }
      return `
        <section class="panel drill-panel">
          <div class="panel-header">
            <div>
              <h2 class="panel-title">${title}</h2>
              <div class="panel-note">点击项目行进入项目级看板。</div>
            </div>
          </div>
          <div class="table-wrap">
            <table>
              <thead>
                <tr>
                  <th>单位</th>
                  <th>项目名称</th>
                  <th>指标使用率</th>
                  <th>是否上线</th>
                  <th>最近更新</th>
                  <th>责任人</th>
                </tr>
              </thead>
              <tbody>
                ${rows.map(({ enterprise: item, project }) => `
                  <tr class="clickable-row" data-project="${project.id}" data-project-unit-id="${escapeHtmlAttr(project.unitId || "")}" data-project-enterprise="${item.name}">
                    <td>${item.name}</td>
                    <td>${project.name}</td>
                    <td class="num">${fmtPercent(project.usageRate)}</td>
                    <td>${project.created ? '<span class="status-pill ok">已上线</span>' : '<span class="status-pill bad">未上线</span>'}</td>
                    <td>${project.lastUpdate}</td>
                    <td>${project.owner}</td>
                  </tr>
                `).join("")}
              </tbody>
            </table>
          </div>
        </section>
      `;
    }

    function renderUnitMetricUsageModal() {
      const rows = getUnitMetricUsageRecords();
      if (!rows.length) {
        return `
          <section class="panel drill-panel">
            <div class="panel-header"><div><h2 class="panel-title">项目指标使用率</h2></div></div>
            <div class="empty-state">当前暂无单位项目指标使用数据。</div>
          </section>
        `;
      }
      return `
        <section class="panel drill-panel">
          <div class="panel-header">
            <div>
              <h2 class="panel-title">项目指标使用率</h2>
            </div>
          </div>
          <div class="table-wrap">
            <table>
              <thead>
                <tr>
                  <th>单位简称</th>
                  <th>QHSE在建项目数</th>
                  <th>活跃项目数</th>
                  <th>使用率</th>
                  <th>日期</th>
                </tr>
              </thead>
              <tbody>
                ${rows.map((row) => {
                  const unitName = row.abbreviation || row.unitName || "";
                  const webUrl = resolveUnitMetricUsageWebUrl(row);
                  const unitCell = /^https?:\/\//i.test(webUrl)
                    ? `<a class="table-link" href="${escapeHtmlAttr(webUrl)}" target="_blank" rel="noopener noreferrer">${unitName}</a>`
                    : unitName;
                  return `
                    <tr>
                      <td>${unitCell}</td>
                      <td class="num">${row.qhseTotal}</td>
                      <td class="num">${row.activeNum}</td>
                      <td class="num">${fmtPercent(row.usageRate)}</td>
                      <td>${formatApiDate(row.date)}</td>
                    </tr>
                  `;
                }).join("")}
              </tbody>
            </table>
          </div>
        </section>
      `;
    }

    /**
     * “集团项目上线统计”弹窗内容。
     * 弹窗标题由 core 模块 renderDrillModal 设置，这里只负责面板主体和表格。
     */
    function renderGroupOnlineStatsModal() {
      return `
        <section class="panel drill-panel">
          <div class="panel-header">
            <div>
              <h2 class="panel-title">集团项目上线统计</h2>
            </div>
          </div>
          ${renderUsageReportTable()}
        </section>
      `;
    }