#app{font-family:Avenir,Helvetica,Arial,sans-serif;text-align:center;color:#2c3e50;margin-top:20px}nav{padding:20px}nav a{font-weight:700;color:#2c3e50;text-decoration:none;margin:0 10px}nav a.router-link-exact-active{color:#42b983}:root{--primary-color: #1e6fba;--primary-dark: #155a9a;--primary-light: #4a90e2;--secondary-color: #f0f7ff;--background-color: #f5f4f2;--text-color: #333;--text-light: #666;--white: #ffffff;--border-color: #e1ecf7;--shadow: 0 4px 12px rgba(30, 111, 186, .15);--gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%)}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Microsoft YaHei,sans-serif}body{color:var(--text-color);background-color:var(--background-color);line-height:1.6}a{text-decoration:none;color:inherit}ul{list-style:none}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:12px 28px;background:var(--gradient);color:var(--white);border-radius:4px;font-weight:600;transition:all .3s ease;border:none;cursor:pointer;box-shadow:0 2px 8px #1e6fba4d;text-decoration:none}.btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px #1e6fba66}.section-title{text-align:center;margin-bottom:60px}.section-title h2{font-size:2.5rem;color:var(--primary-color);margin-bottom:15px;position:relative;display:inline-block}.section-title h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:80px;height:4px;background-color:var(--primary-color);border-radius:2px}.section-title p{color:var(--text-light);max-width:600px;margin:0 auto;font-size:1.1rem}