.about-container{max-width:1200px;margin:0 auto;padding:40px 20px;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif;color:#333;line-height:1.6;background-color:#f5f5f5}.about-title{font-size:2.5rem;text-align:center;margin-bottom:40px;color:#1a1a1a;position:relative;padding-bottom:15px}.about-title:after{content:"";position:absolute;width:80px;height:3px;background-color:#0070f3;bottom:0;left:50%;transform:translateX(-50%)}.about-section{margin-bottom:40px;background-color:#fff;border-radius:8px;padding:25px;box-shadow:0 2px 10px rgba(0,0,0,.05)}.about-section p{text-indent:2em;margin-bottom:15px;font-size:1.1rem}.about-section h3{font-size:1.5rem;color:#0070f3;margin-top:25px;margin-bottom:15px;font-weight:600}@media (max-width:767px){.about-container{padding:20px 15px}.about-title{font-size:1.8rem;margin-bottom:25px;padding-bottom:10px}.about-title:after{width:60px;height:2px}.about-section{padding:15px;margin-bottom:20px}.about-section p{font-size:.95rem;margin-bottom:12px}.about-section h3{font-size:1.2rem;margin-top:20px;margin-bottom:10px}}@media (max-width:768px){.about-title{font-size:2rem}.about-section h2{font-size:1.5rem}.about-section p{font-size:1rem}}.footer{background-color:#f8f9fa;border-top:1px solid #e0e0e0;padding:15px 0;text-align:center;color:#666;font-size:14px;margin-top:40px}.footer p{margin:0}.footer a{color:#666666;text-decoration:none}.footer a:hover{color:#333;text-decoration:underline}