fix(vip): render points exchange description

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tests/widget-system/vip-points-exchange-modal.test.cjs

@@ -22,6 +22,7 @@ const test = require('node:test');
 const assert = require('node:assert');
 const fs = require('node:fs');
 const path = require('node:path');
+const { execFileSync } = require('node:child_process');
 
 const root = path.join(__dirname, '..', '..');
 const read = (...seg) => fs.readFileSync(path.join(root, ...seg), 'utf8');
@@ -80,6 +81,28 @@ test('弹窗壳随 wp_footer 全局输出且不进入 catalog 载荷', () => {
   assert.doesNotMatch(modal, /'vip_url'/);
 });
 
+test('我的积分盒恢复参考主题 muted-box 的背景、圆角与内边距', () => {
+  assert.match(vipCss, /\.modal\[data-aksrt-vip-points-modal\]\s+\.muted-box\.padding-h10\s*\{\s*background-color:\s*var\(--this-bg,\s*var\(--muted-border-color\)\);\s*border-radius:\s*var\(--main-radius\);\s*padding:\s*10px 15px;\s*\}/);
+  assert.match(vipCss, /\.modal\[data-aksrt-vip-points-modal\]\s+\.muted-box\.padding-10,\s*\.modal\[data-aksrt-vip-points-modal\]\s+\.aksrt-vip-points-desc\s*\{\s*background-color:\s*var\(--this-bg,\s*var\(--muted-border-color\)\);\s*border-radius:\s*var\(--main-radius\);\s*padding:\s*10px;\s*\}/);
+});
+
+test('后台兑换说明直接从 VIP 设置读取并作为富文本置于套餐与提交动作之间', () => {
+  assert.match(modal, /\$desc_text = trim\(\(string\) \(\$vip\['points_exchange'\]\['desc'\] \?\? ''\)\);/);
+  assert.match(modal, /aksrt-vip-points-desc/);
+  assert.match(modal, /wp_kses_post\(\$desc_text\)/);
+  assert.match(modal, /\. \$header\s*\. '<form class="" data-aksrt-vip-points-form>' \. \$user_box \. \$lists \. \$desc \. \$form/);
+  assert.match(vipCss, /\.modal\[data-aksrt-vip-points-modal\]\s+\.aksrt-vip-points-desc\s*\{[^}]*display:\s*block;[^}]*margin-top:\s*20px;[^}]*color:\s*var\(--muted-2-color,\s*#999\);/s);
+  assert.match(vipCss, /\.modal\[data-aksrt-vip-points-modal\]\s+\.muted-box\.padding-10,\s*\.modal\[data-aksrt-vip-points-modal\]\s+\.aksrt-vip-points-desc\s*\{[^}]*padding:\s*10px;/s);
+});
+
+test('兑换说明从后台设置实际输出，保留 HTML 并显示在卡片与 CTA 之间', () => {
+  const rendered = execFileSync(process.env.PHP_BINARY || 'php', [
+    path.join(__dirname, 'vip-points-exchange-description-harness.php'),
+  ], { encoding: 'utf8' });
+  assert.match(rendered, /class="muted-box muted-2-color padding-10 em09 mt20 aksrt-vip-points-desc"><p>后台配置的兑换说明<\/p><\/div>/);
+  assert.ok(rendered.indexOf('aksrt-vip-points-desc') < rendered.indexOf('data-aksrt-vip-points-submit'));
+});
+
 test('弹窗壳静止态必须被 vip-modal.css 显式隐藏（.flex 覆盖回归护栏）', () => {
   assert.match(vipCss, /\.modal\[data-aksrt-vip-points-modal\]\s*\{\s*display:\s*none;/);
   assert.match(vipCss, /\.modal\[data-aksrt-vip-points-modal\]\.in\s*\{\s*display:\s*flex;/);