.app-banner{position:fixed;top:0;left:0;width:100%;background:#1a1a1a;color:#fff;padding:12px 0;text-align:center;z-index:10000;box-shadow:0 2px 10px rgb(0 0 0 / .3);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif}.app-banner-content{display:flex;align-items:center;justify-content:center;max-width:1200px;margin:0 auto;padding:0 20px}.app-logo{width:32px;height:32px;margin-right:12px;border-radius:8px;object-fit:cover}.app-banner-text{flex-grow:1;text-align:left}.app-banner h3{margin:0 0 4px 0;font-size:16px;font-weight:600;color:#fff}.app-banner p{margin:0;font-size:14px;opacity:.9;color:#e0e0e0}.download-btn{background:#007AFF;color:#fff;padding:8px 16px;border-radius:20px;text-decoration:none;font-weight:600;margin-left:15px;font-size:14px;white-space:nowrap;border:none;cursor:pointer;transition:background-color 0.2s ease}.download-btn:hover{background:#0056CC;color:#fff}.close-banner{background:none;border:none;color:#fff;font-size:20px;cursor:pointer;margin-left:15px;padding:0 8px;line-height:1;opacity:.7;transition:opacity 0.2s ease}.close-banner:hover{opacity:1}@media (max-width:768px){.app-banner-content{padding:0 15px;flex-wrap:nowrap}.app-banner h3{font-size:14px}.app-banner p{font-size:12px}.download-btn{font-size:12px;padding:6px 12px;margin-left:10px}.close-banner{margin-left:10px;font-size:18px}.app-logo{width:28px;height:28px;margin-right:10px}}@media (max-width:480px){.app-banner{padding:10px 0}.app-banner-content{flex-wrap:wrap;justify-content:space-between}.app-banner-text{flex-basis:calc(100% - 120px)}.download-btn{order:3;margin:8px auto 0;width:100%;text-align:center}}