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

body {
    font-family: 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
    background: linear-gradient(135deg, #f5f5dc 0%, #ffffff 100%);
    min-height: 100vh;
    line-height: 1.6;
    color: #333;
    padding-bottom: 100px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: transparent;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    padding-top: 20px;
}

.title {
    font-size: 28px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 10px;
    animation: fadeInDown 1s ease-out;
}

.subtitle {
    font-size: 16px;
    color: #7f8c8d;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.profile-section {
    text-align: center;
    margin-bottom: 40px;
    animation: fadeIn 1.2s ease-out 0.6s both;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, #3498db, #2980b9);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: white;
    font-weight: bold;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
}

.avatar:hover {
    transform: scale(1.05);
}

.intro-text {
    font-size: 18px;
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 15px;
}

.description {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    text-align: left;
    margin-bottom: 30px;
}

.features {
    margin-bottom: 40px;
    animation: fadeInUp 1.5s ease-out 0.9s both;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(45deg, #e74c3c, #c0392b);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 20px;
    color: white;
    flex-shrink: 0;
}

.feature-text {
    flex: 1;
}

.feature-title {
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.feature-desc {
    color: #666;
    font-size: 14px;
}

.community-image {
    width: 100%;
    max-width: 500px;
    margin: 30px auto;
    display: block;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    animation: fadeIn 1.8s ease-out 1.2s both;
}

.highlight-section {
    background: rgba(255, 255, 255, 0.8);
    padding: 25px;
    border-radius: 20px;
    margin-bottom: 40px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    animation: fadeInUp 2s ease-out 1.5s both;
}

.highlight-title {
    font-size: 20px;
    font-weight: bold;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 20px;
}

.benefits {
    list-style: none;
}

.benefits li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: #555;
}

.benefits li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #27ae60;
    font-weight: bold;
    font-size: 18px;
}

.cta-button {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(45deg, #e74c3c, #c0392b);
    color: white;
    padding: 18px 40px;
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    animation: pulse 2s infinite, slideInUp 2.5s ease-out 2s both;
    width: max-content;
}

.cta-button:hover {
    transform: translateX(-50%) translateY(-3px);
    box-shadow: 0 12px 35px rgba(231, 76, 60, 0.5);
    background: linear-gradient(45deg, #c0392b, #e74c3c);
}

.cta-button:active {
    transform: translateX(-50%) translateY(-1px);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(100px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
    }
    50% {
        box-shadow: 0 8px 35px rgba(231, 76, 60, 0.6);
    }
    100% {
        box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .title {
        font-size: 24px;
    }
    
    .avatar {
        width: 100px;
        height: 100px;
        font-size: 40px;
    }
    
    .cta-button {
        padding: 15px 35px;
        font-size: 16px;
    }
}