release: bump version to 0.27.4

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

VERSION

@@ -1 +1 @@
-0.27.3
+0.27.4

docs/CHANGELOG.md

@@ -8,6 +8,13 @@ This project follows the repository versioning rule:
 - `improvement` -> `+0.0.1`（bugfix + 小功能混合）
 - `bugfix` -> `+0.0.1`
 
+## [0.27.4] — 2026-04-14
+
+### 🔧 Improvements
+- info-card 改为懒加载动态挂载：页面初始 DOM 不再含隐藏的 `#info-panel` 节点，仅首次点击交互元素时创建
+
+---
+
 ## [0.27.3] — 2026-04-14
 
 ### 🔧 Improvements

docs/version-history.md

@@ -16,12 +16,13 @@
 ## Current Version
 
 - `main` 当前主线历史推导到：`0.16.5`
-- `dev` 当前开发分支历史推导到：`0.27.3`
+- `dev` 当前开发分支历史推导到：`0.27.4`
 
 ## Timeline
 
 | Version | Type | Branch | Commit | Summary |
 | --- | --- | --- | --- | --- |
+| `0.27.4` | improvement | `dev` | — | info-card 懒加载动态挂载，页面初始不再有隐藏节点 |
 | `0.27.3` | improvement | `dev` | — | TV panel 折叠方向稳定、视频跳动修复、图例折叠按钮修复、搜索图标调整 |
 | `0.27.2` | improvement | `dev` | — | 修复 brand copy 宽度问题，提取 --brand-copy-width CSS 变量 |
 | `0.27.1` | improvement | `dev` | — | HUD 面板拖拽 L 形边界约束、brand 组件整体缩放、图层面板宽度优化、搜索叉叉修复 |

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "planet-frontend",
-  "version": "0.27.3",
+  "version": "0.27.4",
   "private": true,
   "packageManager": "bun@1",
   "dependencies": {

frontend/public/earth/index.html

@@ -145,20 +145,7 @@
       </div>
     </div>
 
-    <!-- Floating detail panel — positioned near click by JS -->
-    <div id="info-panel" class="hud-panel hud-panel-info hud-panel-draggable" aria-live="polite">
-      <div id="info-card" class="info-card">
-        <div class="info-card-header hud-panel-drag-handle">
-          <span class="info-card-icon" id="info-card-icon">🛰️</span>
-          <h3 id="info-card-title">详情</h3>
-          <button class="info-card-close hud-panel-close" type="button" aria-label="关闭详情">
-            <span class="material-symbols-rounded">close</span>
-          </button>
-        </div>
-        <div id="info-card-content" class="info-card-content"></div>
-      </div>
-      <div id="error-message" class="hud-error-message"></div>
-    </div>
+    <div id="error-message" class="hud-error-message"></div>
 
     <div id="right-toolbar-group" class="earth-toolbar-group">
       <div id="control-toolbar" class="earth-toolbar">

frontend/public/earth/js/info-card.js

@@ -2,6 +2,7 @@
 import { showStatusMessage } from './ui.js';
 
 let currentType = null;
+let cardMounted = false;
 
 const CARD_CONFIG = {
   cable: {
@@ -105,6 +106,138 @@ function getPanel() {
   return document.getElementById('info-panel');
 }
 
+function setupInfoCardDrag(panel) {
+  const app = document.getElementById('container');
+  if (!app) return;
+
+  const handle = panel.querySelector('.hud-panel-drag-handle');
+  if (!handle) return;
+
+  let isDragging = false;
+  let startPointerX = 0;
+  let startPointerY = 0;
+  let startLeft = 0;
+  let startTop = 0;
+
+  const stopDragging = () => {
+    isDragging = false;
+    panel.classList.remove('is-dragging');
+    document.body.style.userSelect = '';
+  };
+
+  const onMove = (event) => {
+    if (!isDragging) return;
+    const appRect = app.getBoundingClientRect();
+    const panelRect = panel.getBoundingClientRect();
+    const nextLeft = Math.min(
+      Math.max(startLeft + (event.clientX - startPointerX), 0),
+      appRect.width - panelRect.width,
+    );
+    const nextTop = Math.min(
+      Math.max(startTop + (event.clientY - startPointerY), 0),
+      appRect.height - panelRect.height,
+    );
+    panel.style.left = `${nextLeft}px`;
+    panel.style.top = `${nextTop}px`;
+  };
+
+  handle.addEventListener('pointerdown', (event) => {
+    if (event.target.closest('.hud-panel-close, .info-card-close')) return;
+    isDragging = true;
+    startPointerX = event.clientX;
+    startPointerY = event.clientY;
+    const appRect = app.getBoundingClientRect();
+    const panelRect = panel.getBoundingClientRect();
+    startLeft = panelRect.left - appRect.left;
+    startTop = panelRect.top - appRect.top;
+    panel.style.left = `${startLeft}px`;
+    panel.style.top = `${startTop}px`;
+    panel.style.right = 'auto';
+    panel.style.bottom = 'auto';
+    panel.classList.add('is-dragging');
+    document.body.style.userSelect = 'none';
+    handle.setPointerCapture?.(event.pointerId);
+  });
+
+  handle.addEventListener('pointermove', onMove);
+  handle.addEventListener('pointerup', stopDragging);
+  handle.addEventListener('pointercancel', stopDragging);
+  handle.addEventListener('lostpointercapture', stopDragging);
+}
+
+function mountCard() {
+  if (cardMounted) return;
+
+  const container = document.getElementById('container');
+  if (!container) return;
+
+  const panel = document.createElement('div');
+  panel.id = 'info-panel';
+  panel.className = 'hud-panel hud-panel-info';
+  panel.setAttribute('aria-live', 'polite');
+  panel.innerHTML = `
+    <div id="info-card" class="info-card">
+      <div class="info-card-header hud-panel-drag-handle">
+        <span class="info-card-icon" id="info-card-icon">🛰️</span>
+        <h3 id="info-card-title">详情</h3>
+        <button class="info-card-close hud-panel-close" type="button" aria-label="关闭详情">
+          <span class="material-symbols-rounded">close</span>
+        </button>
+      </div>
+      <div id="info-card-content" class="info-card-content"></div>
+    </div>
+  `;
+
+  container.appendChild(panel);
+
+  const card = panel.querySelector('#info-card');
+  const content = panel.querySelector('#info-card-content');
+
+  // Prevent pointer events from reaching the earth canvas
+  const stopEvent = (event) => { event.stopPropagation(); };
+  [
+    'mousemove', 'mousedown', 'mouseup', 'click', 'dblclick', 'wheel',
+    'pointerdown', 'pointerup', 'pointermove',
+    'touchstart', 'touchmove', 'touchend',
+  ].forEach((evt) => card.addEventListener(evt, stopEvent, { passive: false }));
+
+  // Close button
+  const closeBtn = card.querySelector('.info-card-close');
+  if (closeBtn) {
+    closeBtn.addEventListener('click', (event) => {
+      event.stopPropagation();
+      hideInfoCard();
+    });
+  }
+
+  // Copy value on label click
+  content.addEventListener('click', async (event) => {
+    const label = event.target.closest('.info-card-label');
+    if (!label) return;
+
+    const property = label.closest('.info-card-property');
+    const valueEl = property?.querySelector('.info-card-value');
+    const value = valueEl?.textContent?.trim();
+
+    if (!value || value === '-') {
+      showStatusMessage('无可复制内容', 'warning');
+      return;
+    }
+
+    try {
+      await navigator.clipboard.writeText(value);
+      showStatusMessage(`已复制${label.textContent}：${value}`, 'success');
+    } catch (error) {
+      console.error('Copy failed:', error);
+      showStatusMessage('复制失败', 'error');
+    }
+  });
+
+  setupInfoCardDrag(panel);
+
+  cardMounted = true;
+}
+
 function positionPanel(panel, x, y) {
   if (!panel) return;
   const margin = 12;
@@ -142,71 +275,8 @@ function hidePanel() {
   if (panel) panel.classList.remove('is-visible');
 }
 
-export function initInfoCard() {
-  const card = document.getElementById('info-card');
-  const content = document.getElementById('info-card-content');
-  if (!card || !content) return;
-
-  if (card.dataset.interactionBound !== 'true') {
-    const stopEvent = (event) => {
-      event.stopPropagation();
-    };
-
-    [
-      'mousemove',
-      'mousedown',
-      'mouseup',
-      'click',
-      'dblclick',
-      'wheel',
-      'pointerdown',
-      'pointerup',
-      'pointermove',
-      'touchstart',
-      'touchmove',
-      'touchend',
-    ].forEach((eventName) => {
-      card.addEventListener(eventName, stopEvent, { passive: false });
-    });
-
-    // Close button wires the panel hide
-    const closeBtn = card.querySelector('.info-card-close');
-    if (closeBtn) {
-      closeBtn.addEventListener('click', (event) => {
-        event.stopPropagation();
-        hideInfoCard();
-      });
-    }
-
-    card.dataset.interactionBound = 'true';
-  }
-
-  if (content.dataset.copyBound === 'true') return;
-
-  content.addEventListener('click', async (event) => {
-    const label = event.target.closest('.info-card-label');
-    if (!label) return;
-
-    const property = label.closest('.info-card-property');
-    const valueEl = property?.querySelector('.info-card-value');
-    const value = valueEl?.textContent?.trim();
-
-    if (!value || value === '-') {
-      showStatusMessage('无可复制内容', 'warning');
-      return;
-    }
-
-    try {
-      await navigator.clipboard.writeText(value);
-      showStatusMessage(`已复制${label.textContent}：${value}`, 'success');
-    } catch (error) {
-      console.error('Copy failed:', error);
-      showStatusMessage('复制失败', 'error');
-    }
-  });
-
-  content.dataset.copyBound = 'true';
-}
+// No-op: event binding now happens lazily in mountCard()
+export function initInfoCard() {}
 
 export function setInfoCardNoBorder(noBorder = true) {
   const card = document.getElementById('info-card');
@@ -222,6 +292,8 @@ export function showInfoCard(type, data, options = {}) {
     return;
   }
 
+  mountCard();
+
   currentType = type;
   const card = document.getElementById('info-card');
   const icon = document.getElementById('info-card-icon');

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "planet"
-version = "0.27.3"
+version = "0.27.4"
 description = "智能星球计划 - 态势感知系统"
 requires-python = ">=3.14"
 dependencies = [

uv.lock

@@ -475,7 +475,7 @@ wheels = [
 
 [[package]]
 name = "planet"
-version = "0.27.3"
+version = "0.27.4"
 source = { virtual = "." }
 dependencies = [
     { name = "aiofiles" },