*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-primary: #166eff;--color-primary-dark: #1258cc;--color-text: #1e1f29;--color-text-light: #555f6f;--color-text-gray: #889098;--color-bg: #fff;--color-bg-alt: #f8faff;--color-footer: #2d384e;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Helvetica Neue", Arial, sans-serif;--max-width: 1200px}html{scroll-behavior:smooth}body{font-family:var(--font-family);font-size:16px;line-height:1.6;color:var(--color-text);background-color:var(--color-bg)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}h1,h2,h3,h4{font-weight:600;line-height:1.3}h1{font-size:2.5rem}h2{font-size:2rem;margin-bottom:1rem}h3{font-size:1.5rem;margin-bottom:.75rem}h4{font-size:1.25rem;margin-bottom:.75rem}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:12px 28px;font-size:1rem;font-weight:500;text-align:center;border:none;border-radius:4px;cursor:pointer;transition:all .2s ease;text-decoration:none}.btn:hover{text-decoration:none}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-outline{background:transparent;color:var(--color-text);border:1px solid #e7e7e7}.btn-outline:hover{border-color:var(--color-primary);color:var(--color-primary)}.btn-large{padding:14px 36px;font-size:1.1rem}.btn-white{background:#fff;color:var(--color-primary)}.btn-white:hover{background:#f5f5f5}