* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Open Sans', 'Helvetica Neue', sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #4A90E2, #5BA0F2);
    border-radius: 0 0 100% 0;
    z-index: 1;
}

.profile-section {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
}

.profile-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 4px solid white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.main-title {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.subtitle {
    font-size: 16px;
    color: #4A90E2;
    font-weight: 400;
}

.promo-banner {
    background: linear-gradient(135deg, #4A90E2, #5BA0F2);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 25px;
    color: white;
    position: relative;
    overflow: hidden;
}

.promo-banner::after {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.promo-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 5px;
}

.promo-content p {
    font-size: 14px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.promo-cta {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.promo-cta:hover {
    background: white;
    color: #4A90E2;
}

.click-icon {
    position: absolute;
    bottom: 15px;
    right: 20px;
    font-size: 20px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

.social-links {
    margin-bottom: 25px;
}

.link-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    margin-bottom: 10px;
    background: #f8f9fa;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.link-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.link-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 18px;
    font-weight: bold;
}

.link-icon.youtube {
    background: #ff0000;
    color: white;
}

.link-icon.twitter {
    background: #000000;
    color: white;
}

.link-icon.line {
    background: #00c300;
    color: white;
}

.link-icon.note {
    background: #41c9b4;
    color: white;
}

.link-icon.book {
    background: #8b4513;
    color: white;
}

.link-item span {
    font-size: 16px;
    font-weight: 500;
}

.contact-section {
    text-align: center;
}

.contact-cta {
    background: #4A90E2;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.contact-cta:hover {
    background: #3a7bc8;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.3);
}

.accent-shape {
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 100px;
    height: 100px;
    background: #ffd700;
    border-radius: 50%;
    z-index: 0;
}

@media (max-width: 768px) {
    .container {
        max-width: 350px;
    }
    
    .card {
        padding: 30px 20px;
    }
    
    .main-title {
        font-size: 22px;
    }
    
    .promo-content h2 {
        font-size: 24px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 450px;
    }
    
    .card {
        padding: 50px 40px;
    }
}