:root{--brand: #4F46E5;--brand-500: #6366F1;--brand-600: #4F46E5;--brand-soft: #EEF2FF;--consult: #2563EB;--red: #E5484D;--yellow: #F5B942;--green: #30A46C;--text-main: #1F2937;--text-sub: #4B5563;--bg-white: #FFFFFF;--bg-gray: #F9FAFB;--footer-top: #111827;--footer-bottom: #020617;--radius: 10px;--radius-pill: 999px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;color:var(--text-main);background:var(--bg-white);line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--brand);text-decoration:none}h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:600}p{margin:0}.container{max-width:1160px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:16px;font-weight:500;padding:12px 24px;border-radius:var(--radius);cursor:pointer;border:1.5px solid transparent;transition:all .2s 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