w20260408

<style>
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; background: #f5f6f7; }

  .sidebar-container {
    width: 100%;
    padding: 12px;
  }

  /* 欢迎区 */