:root{--bg: #f6fafd;--surface: #ffffff;--ink: #17344c;--muted: #56708a;--line: #d9e7f1;--accent: #2a76ab;--brand: #3685bb;--brand-deep: #1f5f8f;--price: #c0456f;--pink: #fbe3ec;--soft: #e7f2fa;--tile: #e2f0fa;--blue: #dcecf8;--peach: #fdecf1;--focus: #d14b7a;--code-bg: #edf4f9;--radius: 18px;color-scheme:light}:root[data-theme=dark]{--bg: #0f1d2a;--surface: #152738;--ink: #e8f1f8;--muted: #a5bccf;--line: #29425a;--accent: #8cc4ec;--brand: #4f9bd0;--brand-deep: #163f60;--price: #f4a3c0;--pink: #3d2633;--soft: #1b3248;--tile: #1d354b;--blue: #1d3a52;--peach: #3a2834;--focus: #f4a3c0;--code-bg: #13283a;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:40px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Be Vietnam Pro,Segoe 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