.check-method { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
.check-method article { padding: 22px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.method-number { font-size: 13px; color: var(--accent); font-weight: 600; }
.check-method h3 { font-size: 21px; margin: 16px 0 12px; }
.check-method p { font-size: 15px; margin: 0; color: var(--muted); }
.source-facts ul { padding-left: 20px; margin-bottom: 0; }
.source-facts li + li { margin-top: 10px; }
.review-choice { margin-bottom: 0; }
.review-item { margin-bottom: 16px; }
.sentence-feedback { margin: 10px 0 0 36px; padding: 12px 16px; border-left: 2px solid var(--accent); color: var(--ink); font-size: 15px; }
.worked-example { margin-top: 24px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.worked-example summary { cursor: pointer; padding: 20px; font-weight: 600; min-height: 44px; }
.worked-content { padding: 0 22px 22px; }
.worked-content h3 { font-size: 21px; }
#method, #exercise { scroll-margin-top: 28px; }
@media (max-width: 700px) { .check-method { grid-template-columns: 1fr; } .check-method article { padding: 20px; } .check-method h3 { margin-top: 8px; } .sentence-feedback { margin-left: 0; } }