:root{--ink:#17202a;--body:#354253;--muted:#788696;--line:#e1e7ee;--soft:#f6f9fc;--blue:#1769ff;--blue-dark:#0e53d6;--blue-soft:#eaf2ff;--radius:12px;--shadow:0 22px 55px #243f6024, 0 2px 8px #243f6014;color:var(--ink);font-synthesis:none;text-rendering:optimizelegibility;background:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;color:var(--body);background:#fff;margin:0;font-size:16px;line-height:1.75}a{color:inherit;text-decoration:none}.site-header{border-bottom:1px solid var(--line);background:#fffffff5}.header-inner,.footer-inner{width:min(1200px,100% - 64px);margin:0 auto}.header-inner{align-items:center;gap:44px;min-height:76px;display:flex}.brand,.footer-brand{color:var(--ink);letter-spacing:-.055em;font-size:25px;font-weight:760}.brand{align-items:center;gap:10px;display:inline-flex}.brand 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