:root{--primary-color:#c82c32;--secondary-color:#333;--light-color:#fff;--gray-color:#f5f5f5;--dark-gray-color:#666;--font-family:"Arial","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--secondary-color);font-family:var(--font-family);line-height:1.6}a{color:var(--primary-color);text-decoration:none;transition:all .3s ease}a:hover{color:#a52329}.container{margin:0 auto;max-width:1200px;padding:0 15px;width:100%}.btn{border-radius:4px;cursor:pointer;display:inline-block;font-weight:600;padding:10px 20px;text-align:center;transition:all .3s ease}.btn-primary{background-color:var(--primary-color);border:1px solid var(--primary-color);color:var(--light-color)}.btn-primary:hover{background-color:#a52329;border-color:#a52329;color:var(--light-color)}.btn-outline{background-color:transparent;border:1px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background-color:var(--primary-color);color:var(--light-color)}.section{padding:80px 0}.section-title{font-size:2.5rem;margin-bottom:20px;text-align:center}.section-subtitle{color:var(--dark-gray-color);font-size:1.2rem;margin-bottom:40px;text-align:center}.card{background-color:var(--light-color);border-radius:8px;box-shadow:0 4px 6px #0000001a;margin-bottom:30px;padding:30px;transition:all .3s ease}.card:hover{box-shadow:0 10px 20px #0000001a;transform:translateY(-5px)}.text-center{text-align:center}.mb-3{margin-bottom:1rem}.mb-5{margin-bottom:3rem}.mt-3{margin-top:1rem}.mt-5{margin-top:3rem}@media (max-width:768px){.section{padding:50px 0}.section-title{font-size:2rem}}