:root{--ink: #14202c;--ink-soft: #47586a;--line: #dce3ea;--bg: #ffffff;--bg-soft: #f4f7fa;--bg-softer: #eef3f7;--brand: #0b4f8a;--brand-dark: #083c69;--brand-tint: #e7f0f8;--accent: #c8501e;--accent-dark: #a53f14;--ok: #1f7a4d;--warn-bg: #fff7e6;--warn-line: #f0d089;--warn-ink: #8a6316;--radius: 10px;--radius-sm: 6px;--shadow: 0 1px 3px rgba(20,32,44,.08), 0 6px 20px rgba(20,32,44,.06);--maxw: 1160px;--font: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;overflow-wrap:break-word}img,svg{max-width:100%;height:auto;display:block}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{line-height:1.3;color:var(--ink);margin:0 0 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