:root{--bg: #f4f6f9;--surface: #ffffff;--surface-2: #f8fafc;--border: #dfe4ea;--text: #1c2430;--muted: #5f6b7a;--primary: #1f4e79;--primary-2: #2b6cb0;--primary-soft: #e6eef7;--ok: #1f7a4d;--ok-soft: #e4f4ea;--warn: #9a5b00;--warn-soft: #fdf1dc;--bad: #b42318;--bad-soft: #fde8e7;--info: #155e75;--info-soft: #e0f2f7;--radius: 10px;--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);--sidebar: 252px;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Sarabun,Noto Sans Thai,system-ui,sans-serif;font-size:15px;line-height:1.55;background:var(--bg);color:var(--text)}a{color:var(--primary-2);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:22px;margin:0}h2{font-size:18px;margin:0 0 12px}h3{font-size:16px;margin:0 0 8px}small,.muted{color:var(--muted)}code{background:var(--surface-2);padding:1px 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