* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

body {
    background-color: #f0f8ff;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
    background: linear-gradient(135deg, #3498db, #1a5276);
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    z-index: 0;
    animation: float 8s infinite ease-in-out;
}

.container::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    z-index: 0;
    animation: float 6s infinite ease-in-out reverse;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
    100% {
        transform: translateY(0) rotate(0deg);
    }
}

.header {
    text-align: center;
    padding: 20px 0;
    position: relative;
    z-index: 1;
}

.logo-container {
    width: 90px;
    height: 90px;
    margin: 0 auto;
    position: relative;
}

.logo {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
    animation: pulse 2s infinite ease-in-out;
    border-radius: 22%;
    overflow: hidden;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
    }
    50% {
        transform: scale(1.05);
        filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.4));
    }
    100% {
        transform: scale(1);
        filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
    }
}

.header h1 {
    color: white;
    font-size: 28px;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    margin-top: 10px;
}

.content {
    background-color: white;
    border-radius: 20px;
    padding: 25px;
    margin-top: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.congratulation {
    text-align: center;
    margin-bottom: 30px;
}

.congratulation h2 {
    font-size: 24px;
    color: #3498db;
    margin-bottom: 15px;
}

.offer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.highlight {
    font-size: 36px;
    font-weight: bold;
    color: #e74c3c;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    animation: highlight 2s infinite ease-in-out;
}

@keyframes highlight {
    0%, 100% {
        transform: scale(1);
        color: #e74c3c;
    }
    50% {
        transform: scale(1.1);
        color: #ff5e3a;
    }
}

.vip {
    font-size: 28px;
    font-weight: bold;
    color: #3498db;
}

.price {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.old-price {
    text-decoration: line-through;
    color: #95a5a6;
    font-size: 16px;
}

.new-price {
    font-size: 20px;
    color: #2c3e50;
}

.new-price strong {
    color: #e74c3c;
    font-size: 26px;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 30px 0;
}

.app-store-btn, .vip-activate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    padding: 15px 20px;
    border-radius: 12px;
    font-weight: bold;
    font-size: 18px;
    transition: all 0.3s ease;
    gap: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.app-store-btn {
    background-color: #000000;
    color: white;
    animation: pulse-light 2s infinite ease-in-out;
}

.vip-activate-btn {
    background-color: #e74c3c;
    color: white;
    animation: bounce 2s infinite;
}

@keyframes pulse-light {
    0% {
        transform: scale(1);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }
}

.app-store-btn:hover, .vip-activate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    animation: none;
}

.app-store-btn:active, .vip-activate-btn:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-8px);
    }
    60% {
        transform: translateY(-4px);
    }
}

.features {
    display: flex;
    justify-content: space-around;
    margin: 30px 0;
}

.feature {
    text-align: center;
    flex: 1;
    animation: fadeInUp 0.5s ease-out;
    animation-fill-mode: both;
}

.feature:nth-child(1) {
    animation-delay: 0.3s;
}

.feature:nth-child(2) {
    animation-delay: 0.5s;
}

.feature:nth-child(3) {
    animation-delay: 0.7s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-icon {
    font-size: 30px;
    margin-bottom: 10px;
}

.feature p {
    font-size: 14px;
    color: #7f8c8d;
}

.note {
    text-align: center;
    margin-top: 20px;
    color: #95a5a6;
    font-size: 14px;
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .content {
        padding: 20px;
    }
    
    .highlight {
        font-size: 30px;
    }
    
    .vip {
        font-size: 24px;
    }
    
    .app-store-btn, .vip-activate-btn {
        padding: 12px 20px;
        font-size: 16px;
    }
}