.back-link{display:inline-flex;align-items:center;gap:8px;color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:600;margin-bottom:20px;transition:color .2s ease}.back-link:hover{color:var(--text-main)}.info-support-link{display:inline-flex;align-items:center;margin-top:24px;padding:0;background:transparent;color:#111827;border:none;border-radius:0;font-size:13px;font-weight:600;text-decoration:underline;box-shadow:none}.info-support-link:hover{color:#000000;background:transparent}.essays-info-section{margin:28px 0;padding:22px 0 0;border-top:1px solid var(--border-color)}.essays-info-section:first-of-type{margin-top:0;padding-top:0;border-top:none}.essays-info-section h2{margin:0 0 12px;font-size:22px;font-weight:800;letter-spacing:-.3px;color:var(--text-main)}.essays-info-section p{margin:0 0 12px;line-height:1.6}.essays-info-list{margin:0 0 16px;padding-left:20px;line-height:1.6}.essays-info-list li{margin-bottom:8px}.nav-list .nav-btn i{display:none}@media (max-width:1024px){body{overflow-y:auto}#app-container,.app-inner,body{height:auto}.app-inner{flex-direction:column}.sidebar{width:100%;height:auto;position:sticky;top:0;border-right:none;border-bottom:1px solid var(--border-color);padding:16px 16px 12px;box-shadow:0 2px 8px rgba(0,0,0,.05)}.sidebar .logo-brand{margin-bottom:12px}.nav-list{flex-direction:row;gap:18px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}.nav-list::-webkit-scrollbar{display:none}.nav-btn{width:auto;white-space:nowrap;margin-bottom:0;padding:8px 14px;font-size:13px;flex-shrink:0;position:relative}.nav-list .nav-btn:not(:last-child):after{content:"|";position:absolute;right:-12px;top:50%;transform:translateY(-50%);color:#9ca3af;font-weight:400;pointer-events:none;line-height:1}}.portal-free-notice{margin-bottom:20px;padding:16px 18px;background:#ffffff;border:1px solid #e5e7eb;border-left:4px solid #002664;box-shadow:0 4px 20px rgba(0,38,100,.05)}.portal-free-notice--compact{margin-top:14px;margin-bottom:0}.portal-free-notice-icon{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#f8fafc;color:#002664;font-size:18px}.portal-free-notice-body{flex:1;min-width:0}.portal-free-notice-kicker{margin:0 0 4px;font-size:14px;font-weight:700;letter-spacing:normal;text-transform:none;color:#002664}.portal-free-notice-text{margin:0;font-size:15px;line-height:1.5;color:#111827;font-weight:500}.portal-free-notice-link{display:inline-block;margin-top:8px;font-size:14px;font-weight:700;color:#002664;text-decoration:underline}.portal-free-notice-link:hover{color:#001a47}.essays-info-free-hero{margin:0 0 24px;padding:22px 24px;background:linear-gradient(135deg,#f8fafc,#ffffff);border:1px solid #e5e7eb;border-left:4px solid #002664}.essays-info-mission{margin:0 0 16px;font-size:clamp(18px,2.4vw,22px);line-height:1.4;font-weight:800;letter-spacing:-.2px;color:#002664}.essays-info-free-hero h2{margin:0 0 10px;font-size:24px;font-weight:800;letter-spacing:-.3px;color:var(--text-main)}.essays-info-free-hero>p{margin:0 0 14px;font-size:16px;line-height:1.6;color:#374151}.essays-info-vision-box{margin-top:20px;padding:18px 20px;background:#e0f2fe;border:1px solid #bae6fd;border-left:4px solid #0284c7}.essays-info-vision-box h3{margin:0 0 8px;font-size:17px;font-weight:800;color:#0284c7}.essays-info-vision-box p{margin:0 0 10px;line-height:1.6;color:#0c4a6e}.essays-info-vision-box p:last-child{margin-bottom:0}.essays-info-premium-box{margin-top:20px;padding:18px 20px;background:#f8fafc;border:1px solid var(--border-color)}.essays-info-premium-box h2{margin:0 0 10px;font-size:20px;font-weight:800;color:var(--text-main)}