:root{--ink:#203a33;--muted:#7a8780;--green:#267258;--green-dark:#205c48;--mint:#edf4ed;--line:#e5e9e1;--bg:#f8f9f5;--white:#fff;--radius:20px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.65}button,input,textarea{font:inherit}button,a,input,textarea{ -webkit-tap-highlight-color:transparent}a{color:var(--green);text-decoration:none}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #87b399;outline-offset:4px}[hidden]{display:none!important}.header{height:94px;max-width:1180px;padding:0 30px;margin:auto;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid 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