:root{--primary-color:#00529B;--accent-color:#F39C12;--text-color:#333333;--text-light:#666666;--bg-light:#F8F9FA;--border-color:#EAEAEA;--container-width:1200px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text-color);line-height:1.6;background:#fff}a{text-decoration:none;color:inherit;transition:color .3s}img{max-width:100%;height:auto;display:block}ul{list-style:none}.container{max-width:var(--container-width);margin:0 auto;padding:0 15px}.section{padding:60px 0}.bg-light{background-color:var(--bg-light)}.btn{display:inline-block;padding:12px 28px;border-radius:4px;font-weight:bold;font-size:15px;transition:all .3s;cursor:pointer;border:none}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:#003d75;color:#fff}.btn-accent{background:var(--accent-color);color:#fff}.btn-accent:hover{background:#d68910;color:#fff}.btn-outline{border:2px solid 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