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var(--space-5) 0;padding-bottom:var(--space-2);border-bottom:2px solid #e8e8e8}.aal-list{padding-left:var(--space-5);margin:0}.aal-list li{font-size:var(--text-sm);line-height:2;color:#555}.aal-course-section{margin-bottom:28px}.aal-course-section-title{display:flex;align-items:center;gap:var(--space-2);font-size:var(--space-4);font-weight:600;color:#333;margin-bottom:14px}.aal-course-section-icon{font-size:18px}.aal-course-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.aal-course-card{display:block;padding:10px 14px;background:var(--color-white);border:1px solid #e0e0e0;border-radius:var(--radius-sm);text-decoration:none;transition:all .2s;cursor:pointer}.aal-course-card:hover{border-color:#4caf50;box-shadow:0 2px var(--space-2) #4caf501f}.aal-course-card-text{font-size:var(--text-sm);color:#4caf50;font-weight:500;line-height:1.4}.aal-show-more{display:inline-block;margin-top:10px;padding:4px var(--space-3);font-size:var(--space-3);color:#888;background:none;border:none;cursor:pointer;transition:color .2s}.aal-show-more:hover{color:#4caf50}.aal-all-tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-3)}.aal-tool-card{display:flex;align-items:center;gap:var(--space-3);padding:14px var(--space-4);background:var(--color-white);border:1px solid #e8e8e8;border-radius:10px;text-decoration:none;transition:all .2s;cursor:pointer}.aal-tool-card:hover{border-color:#4caf50;box-shadow:0 4px var(--space-3) #4caf501a;transform:translateY(-1px)}.aal-tool-icon{font-size:28px;flex-shrink:0}.aal-tool-info{min-width:0}.aal-tool-name{font-size:var(--text-sm);font-weight:600;color:#333;margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.aal-tool-desc{font-size:var(--space-3);color:#888;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.aal-footer{padding:var(--space-5) 40px;border-top:1px solid #e8e8e8;text-align:center;font-size:var(--space-3);color:#999;flex-shrink:0}.aal-footer a{color:#4caf50;text-decoration:none}.aal-footer a:hover{text-decoration:underline}.aal-iframe-wrapper{flex:1;display:flex;flex-direction:column;position:relative;min-height:0}.aal-iframe{flex:1;width:100%;border:none;min-height:calc(100vh - 48px);background:var(--color-white)}.aal-iframe-loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fafafa;z-index:10;gap:var(--space-4)}.aal-iframe-loading p{font-size:var(--text-sm);color:#888}.aal-loading-spinner{width:36px;height:36px;border:3px solid #e8e8e8;border-top-color:#4caf50;border-radius:var(--radius-full);animation:aal-spin .8s linear infinite}@keyframes aal-spin{to{transform:rotate(360deg)}}.aal-overlay{display:none}@media (max-width: 1200px){.aal-course-cards{grid-template-columns:repeat(3,1fr)}}@media (max-width: 900px){.aal-course-cards{grid-template-columns:repeat(2,1fr)}.aal-content{padding:var(--space-6) var(--space-5)}.aal-hero-body{flex-direction:column;align-items:center;text-align:center}}@media (max-width: 768px){.aal-sidebar{position:fixed;left:-260px;top:0;height:100vh;transition:left .3s ease;box-shadow:none;z-index:200}.aal-sidebar.open{left:0;box-shadow:4px 0 var(--space-5) #00000026}.aal-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;z-index:150}.aal-mobile-menu{display:block}.aal-course-cards{grid-template-columns:repeat(2,1fr)}.aal-all-tools{grid-template-columns:1fr}.aal-content{padding:var(--space-5) var(--space-4)}.aal-hero-title{font-size:22px}.aal-topbar{padding:0 var(--space-4)}.aal-topbar-center{display:none}.aal-topbar-nav{gap:var(--space-3)}}@media (max-width: 480px){.aal-course-cards{grid-template-columns:1fr}}.aal-sidebar::-webkit-scrollbar{width:4px}.aal-sidebar::-webkit-scrollbar-track{background:transparent}.aal-sidebar::-webkit-scrollbar-thumb{background:#ddd;border-radius:4px}.aal-sidebar::-webkit-scrollbar-thumb:hover{background:#bbb}