*,:before,:after{box-sizing:border-box}[hidden]{display:none!important}body{font-family:var(--cwz-font-body,system-ui, -apple-system, sans-serif);background:var(--cwz-bg,#f2f4f7);color:var(--cwz-text,#1a1a1a);margin:0;padding:40px 20px 80px;line-height:1.6}#choiwaza-header{margin-bottom:32px}#choiwaza-footer{margin-top:48px}.page-title{font:700 22px var(--cwz-font-body,sans-serif);color:var(--cwz-text-strong,#1a1a1a);text-align:center;margin:0 0 6px}.page-lead{font:400 13px/1.7 var(--cwz-font-body,sans-serif);color:var(--cwz-text-dim,#555);text-align:center;margin:0 0 24px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.tool-error{border:1px solid var(--cwz-danger,#d64545);background:var(--cwz-danger-bg,#fdecec);color:var(--cwz-danger,#b23434);border-radius:8px;margin:12px 0 0;padding:10px 14px;font-size:13px}.actions{flex-wrap:wrap;gap:8px;margin-top:24px;margin-bottom:24px;display:flex}#result-area{margin-top:24px}.input-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px;display:grid}.input-col{flex-direction:column;gap:6px;min-width:0;display:flex}.input-label{font:600 12px var(--cwz-font-body,sans-serif);color:var(--cwz-text-dim,#555)}.diff-input{border:1px solid var(--cwz-border,#ddd);background:var(--cwz-card-bg,#fff);width:100%;min-height:220px;color:var(--cwz-text,#1a1a1a);font:400 13px/1.6 var(--cwz-font-mono,ui-monospace, SFMono-Regular, Menlo, monospace);resize:vertical;border-radius:8px;padding:10px 12px}.diff-input:focus-visible{outline:2px solid var(--cwz-accent,#2563eb);outline-offset:1px}.result-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px;display:flex}.diff-stats{flex-wrap:wrap;gap:8px;display:flex}.stat{font:600 12px var(--cwz-font-body,sans-serif);border:1px solid var(--cwz-border,#ddd);border-radius:999px;padding:2px 10px}.stat-added{color:#166534;background:#22c55e1f;border-color:#22c55e59}.stat-removed{color:#991b1b;background:#ef44441f;border-color:#ef444459}.diff-view{border:1px solid var(--cwz-border,#ddd);background:var(--cwz-card-bg,#fff);font:400 13px/1.6 var(--cwz-font-mono,ui-monospace, SFMono-Regular, Menlo, monospace);border-radius:8px;max-height:480px;overflow:auto}.diff-view:focus-visible{outline:2px solid var(--cwz-accent,#2563eb);outline-offset:1px}.diff-line{min-width:max-content;padding:0 10px;display:flex}.diff-mark{-webkit-user-select:none;user-select:none;color:var(--cwz-text-dim,#555);flex:0 0 16px}.diff-text{white-space:pre}.diff-del{background:#ef444424}.diff-del .diff-mark,.diff-del .diff-text{color:#991b1b}.diff-add{background:#22c55e24}.diff-add .diff-mark,.diff-add .diff-text{color:#166534}