:root{--bg: #ffffff;--bg-soft: #f7f7f5;--fg: #16181d;--muted: #6b7280;--line: #e8e8e4;--accent: #1a1a1a;--accent-blue: #4f6ef7;--radius: 10px;--radius-lg: 18px;--max-width: 1180px;--shadow: 0 1px 3px rgba(0,0,0,.04);--shadow-hover: 0 12px 28px rgba(0,0,0,.07);background:var(--bg);color:var(--fg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{min-height:100vh}img{max-width:100%;height:auto;display:block}a{color:var(--fg);text-decoration:none}a:hover{color:var(--accent-blue)}.content-container{max-width:var(--max-width);margin:0 auto;padding:0 28px}.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:12px 26px;border-radius:var(--radius);font-size:14px;font-weight:600;border:none;cursor:pointer;transition:transform .15s,box-shadow 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.btn{width:100%;text-align:center}.header-bar{padding:0 16px}.content-container{padding:0 18px}.contact-actions--compact{right:12px;bottom:10px;left:12px;display:grid;grid-template-columns:1fr 1fr;border-radius:16px}.contact-actions--compact .button{width:100%;border-radius:11px}}