*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background-color:#f5f5f5}.app-header{position:fixed;top:0;left:0;right:0;background-color:#fff;box-shadow:0 2px 4px #0000001a;z-index:1000;border-bottom:1px solid #e0e0e0}.header-content{max-width:1200px;margin:0 auto;padding:15px 20px;display:flex;justify-content:space-between;align-items:center}.header-title{font-size:24px;color:#4ecdc4;margin:0;font-weight:700;text-shadow:1px 1px 2px rgba(0,0,0,.1);transition:transform .3s ease,color .3s ease;display:flex;align-items:center;gap:8px}.header-title:hover{color:#45b7aa;transform:scale(1.05)}.header-title:before{content:"\1f6d2";font-size:28px;animation:bounce 2s infinite}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-5px)}60%{transform:translateY(-3px)}}.header-actions{display:flex;gap:12px;align-items:center}.header-btn{padding:8px 16px;border:none;border-radius:6px;background-color:#4ecdc4;color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .3s ease,transform .2s ease}.header-btn:hover{background-color:#45b7aa;transform:translateY(-1px)}.app-main{max-width:1200px;margin:0 auto;padding:90px 20px 20px}#app{min-height:100vh;background-color:#f5f5f5}@media (max-width: 767px){.header-content{padding:12px 15px}.header-title{font-size:20px}.header-title:before{font-size:24px}.header-actions{gap:8px}.header-btn{padding:6px 12px;font-size:12px}.app-main{padding:80px 15px 15px}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000}.modal-content{background-color:#fff;border-radius:10px;padding:24px;width:90%;max-width:400px;box-shadow:0 4px 12px #00000026;text-align:center}.modal-content h3{font-size:20px;color:#2c3e50;margin-bottom:20px;font-weight:600}.customer-service-info{margin-bottom:24px}.customer-service-info p{margin-bottom:12px;color:#7f8c8d;font-size:16px}.customer-service-info strong{color:#4ecdc4;font-weight:600}.modal-actions{display:flex;justify-content:center}.close-btn{padding:10px 24px;border:none;border-radius:6px;background-color:#4ecdc4;color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .3s ease,transform .2s ease}.close-btn:hover{background-color:#45b7aa;transform:translateY(-1px)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}