/**
     * 项目级页面渲染模块。
     * 展示单个项目的上线状态、指标启用数量、准确数量和预警指标，并列出项目下所有治理指标。
     */
    function renderProjectView() {
      const enterprise = getEnterprise(state.enterpriseName);
      const project = getProjectById(state.projectId);
      const rows = buildIndicatorRows(project);
      const enabledCount = rows.filter((row) => row.enabled).length;
      const accurateCount = rows.filter((row) => row.enabled && !row.isWarning).length;
      const warningIndicatorCount = rows.filter((row) => row.isWarning).length;

      app.innerHTML = `
        <section class="metric-cards">
          ${miniMetric("项目上线状态", project.systemStatus, "", project.created ? "已创建项目档案并进入系统" : "未创建项目档案，需先完成上线")}
          ${miniMetric("指标使用数量", `${enabledCount}/${rows.length}`, "", "项目内治理指标动没动")}
          ${miniMetric("数据准确数量", `${accurateCount}/${rows.length}`, "", "数据准不准")}
          ${miniMetric("预警指标", warningIndicatorCount, "项", "")}
        </section>

        <section class="project-layout">
          <article class="panel">
            <div class="panel-header">
              <div>
                <h2 class="panel-title">项目信息</h2>
              </div>
            </div>
            <div class="field-list">
              ${fieldRow("所属企业", enterprise.name)}
              ${fieldRow("项目名称", project.name)}
              ${fieldRow("系统状态", project.systemStatus)}
              ${fieldRow("开工日期", project.startDate)}
              ${fieldRow("最近更新", project.lastUpdate)}
            </div>
          </article>

          <article class="panel">
            <div class="panel-header">
              <div>
                <h2 class="panel-title">指标分析</h2>
              </div>
            </div>
            ${renderIndicatorTable(rows)}
          </article>
        </section>
      `;
    }

    /**
     * 统一弹窗渲染入口。
     * state.drillView 决定展示集团上线统计、企业项目清单、指标项目穿透或指标趋势；
     * 关闭弹窗时清空 body，避免旧内容残留到下一次打开。
     */
    function renderDrillModal() {
      if (!state.drillOpen) {
        drillModal.hidden = true;
        drillModalBody.innerHTML = "";
        return;
      }
      const indicator = getSelectedIndicator();
      drillModal.hidden = false;
      if (state.drillView === "groupOnlineStats") {
        drillModalTitle.textContent = "集团项目上线统计";
        drillModalBody.innerHTML = renderGroupOnlineStatsModal();
        return;
      }
      if (state.drillView === "enterpriseProjectList") {
        drillModalTitle.textContent = `${state.enterpriseName} · 项目清单`;
        drillModalBody.innerHTML = renderEnterpriseProjectListModal(state.drillListType);
        return;
      }
      drillModalTitle.textContent = `${indicator.name} · 指标穿透分析`;
      if (state.drillView === "project") {
        drillModalBody.innerHTML = renderIndicatorProjectView();
        return;
      }
      drillModalBody.innerHTML = renderIndicatorTrendView();
    }