.about-intro-page{background:#fff}.about-banner{position:relative;height:270px;overflow:hidden}.about-banner .banner-bg{position:absolute;inset:0;background:linear-gradient(135deg,#1a5f9e,#2980b9,#3498db);background-size:cover;background-position:center}.about-banner .banner-overlay{position:absolute;inset:0;background:linear-gradient(135deg,#1a5f9ebf,#2980b9b3,#3498dba6);z-index:1}.about-banner .banner-content{position:relative;z-index:2;height:100%;display:flex;align-items:center;justify-content:center}.about-banner .banner-title{font-size:36px;font-weight:700;color:#fff;letter-spacing:4px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.about-content-section{padding:40px 0;background:#f8f9fa}.about-content-section .content-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;gap:30px}.about-sidebar{width:25%;flex-shrink:0}.about-sidebar .sidebar-nav{background:#fff;border-radius:8px;box-shadow:0 2px 12px #00000014;overflow:hidden}.about-sidebar .nav-item{display:flex;align-items:center;padding:18px 24px;color:#333;text-decoration:none;font-size:16px;border-bottom:1px solid #f0f0f0;transition:all .3s ease}.about-sidebar .nav-item:last-child{border-bottom:none}.about-sidebar .nav-item:hover{background:#f5f9fc;color:#1a5f9e}.about-sidebar .nav-item.active{background:linear-gradient(90deg,#1a5f9e,#2980b9);color:#fff}.about-sidebar .nav-icon{margin-right:12px;font-size:14px}.about-sidebar .nav-text{font-weight:500}.about-main{flex:1;min-width:0}.about-main .content-header{background:#fff;border-radius:8px 8px 0 0;padding:24px 30px;border-bottom:2px solid #1a5f9e;display:flex;align-items:center;justify-content:space-between}.about-main .content-title{font-size:24px;font-weight:700;color:#333;margin:0}.about-main .breadcrumb{font-size:14px;color:#666}.about-main .breadcrumb a{color:#1a5f9e;text-decoration:none}.about-main .breadcrumb a:hover{text-decoration:underline}.about-main .breadcrumb .separator{margin:0 8px;color:#999}.about-main .article-content{background:#fff;border-radius:0 0 8px 8px;padding:40px 30px;box-shadow:0 2px 12px #00000014}.about-main .article-content p{font-size:16px;line-height:2;color:#444;text-indent:2em;margin-bottom:20px}.about-main .article-content p:last-child{margin-bottom:0}@media(max-width:768px){.about-banner{height:180px}.about-banner .banner-title{font-size:24px;letter-spacing:2px}.about-content-section .content-container{flex-direction:column}.about-sidebar{width:100%}.about-main .content-header{flex-direction:column;align-items:flex-start;gap:12px}.about-main .article-content{padding:24px 20px}.about-main .article-content p{font-size:15px;line-height:1.8}}