:root{--base: #a2c1b4;--bg: #f5faf7;--surface: #ffffff;--text: #1c2b25;--muted: #5f7068;--accent: #a2c1b4;--accent-deep: #6fa68c;--accent-ink: #3f7a63;--card-shadow: 0 10px 30px rgba(63, 122, 99, .12);--line: #dcebe4}:root[data-theme=dark]{--bg: #101a16;--surface: #1a2722;--text: #eaf4ef;--muted: #97aea4;--accent: #a2c1b4;--accent-deep: #82b89f;--accent-ink: #a2c1b4;--card-shadow: 0 10px 30px rgba(0, 0, 0, .45);--line: #2a3a33}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;transition:background .3s ease,color .3s ease}img{max-width:100%;display:block}h1,h2,h3{line-height:1.2;margin:0 0 .5em}section{padding:5rem 1.5rem}.wrap{max-width:1040px;margin:0 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