[Bug] Heading alignment "broken" when text spans multiple lines

[OverSamu]

Before submitting

• I am using the latest version of Quarkdown.
• I am using Java 17 or later (java -version).

Description

The paragraph numbering (rendered via ::before) is currently behaving as an inline element. When an heading contains a line break (.br) or wraps naturally, the second line starts below the number instead of remaining aligned with the first line of text.

Input

.doctype {paged}
.pageformat width:{10cm} height:{5cm} margin:{1cm}

# A multiline title

Actual output

Expected output

Operating system

No response

Additional context

No response