:root{--green:#154e37;--mid:#376c48;--muted:#557160;--light:#e9f0e4;--cream:#f8faf5;--ink:#1d3528}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Arial,"Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.75;background:white}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}h1,h2,h3,p{margin:0}h1{font-size:clamp(2.3rem,4.5vw,4.4rem);line-height:1.22;letter-spacing:-.04em}h2{font-size:clamp(1.9rem,3vw,3.1rem);line-height:1.32;letter-spacing:-.035em}h3{font-size:1.35rem;line-height:1.4}p{color:var(--muted)}.wrap{max-width:1180px;margin:auto;padding:0 28px}.section{padding:100px 0}.pale{background:var(--cream)}.mint{background:var(--light)}.dark{background:var(--green);color:white}.dark p{color:#d7eacb}.split{display:grid;grid-template-columns:1fr 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