@keyframes subtle-glow {
  0%, 100% {
    box-shadow: 0 0 35px rgba(0, 255, 225, 0.15), 0 0 10px rgba(0, 255, 225, 0.1);
  }
  50% {
    box-shadow: 0 0 50px rgba(0, 255, 225, 0.25), 0 0 15px rgba(0, 255, 225, 0.15);
  }
}

.premium-content-wrapper {
    font-family: 'Pretendard', 'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;
    background: #0a192f;
    color: #a8b2d1;
    line-height: 1.8;
    word-break: keep-all;
    padding: 40px;
    border-radius: 20px;
    margin: 20px 0;
    border: 1px solid rgba(100, 255, 218, 0.15);
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.premium-title {
    font-size: 2.5em;
    font-weight: 800;
    color: #64ffda;
    text-align: center;
    margin-bottom: 40px;
    text-shadow: 0 0 10px rgba(100, 255, 218, 0.5), 0 0 2px rgba(100, 255, 218, 0.8);
}

.premium-content-wrapper h2 {
    font-size: 2.2em;
    font-weight: 700;
    color: #ccd6f6;
    text-align: center;
    padding-bottom: 20px;
    margin: 40px 0 30px 0;
    border-bottom: 1px solid #1f385a;
    position: relative;
}

.premium-content-wrapper h2::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: #64ffda;
    border-radius: 2px;
    box-shadow: 0 0 8px #64ffda;
}

.premium-content-wrapper h3 {
    font-size: 1.8em;
    font-weight: 600;
    color: #ccd6f6;
    margin: 35px 0 20px 0;
    padding-left: 15px;
    border-left: 4px solid #64ffda;
}

.premium-content-wrapper p {
    font-size: 1.1em;
    margin-bottom: 1.5em;
    text-align: justify;
}

.premium-content-wrapper strong {
    color: #64ffda;
    font-weight: 600;
}

.premium-content-wrapper u {
    text-decoration: none;
    background: linear-gradient(to top, rgba(100, 255, 218, 0.2) 45%, transparent 45%);
    font-weight: 500;
}

.info-highlight {
    background: #112240;
    border-left: 5px solid #64ffda;
    border-radius: 12px;
    padding: 25px;
    margin: 30px 0;
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.3);
}

.info-highlight p {
    color: #a8b2d1;
    margin: 0;
    font-size: 1.05em;
}

.premium-content-wrapper ul, .premium-content-wrapper ol {
    padding-left: 30px;
    margin: 25px 0;
}

.premium-content-wrapper li {
    margin-bottom: 12px;
    font-size: 1.1em;
}

.premium-content-wrapper ul li::marker {
    color: #64ffda;
}

.premium-image-wrapper {
    margin: 30px 0 !important;
    text-align: center !important;
}

.image-container {
    position: relative !important;
    display: inline-block !important;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5) !important;
    border-radius: 15px !important;
    overflow: hidden !important;
    border: 1px solid #1f385a !important;
}

.image-container img {
    width: 100% !important;
    max-width: 700px !important;
    height: auto !important;
    display: block !important;
    border-radius: 15px !important;
    opacity: 0.9;
}

.ai-disclaimer {
    position: absolute !important;
    bottom: 8px !important;
    right: 12px !important;
    background: rgba(10, 25, 47, 0.85) !important;
    color: #64ffda !important;
    padding: 4px 8px !important;
    border-radius: 12px !important;
    font-size: 11px !important;
    backdrop-filter: blur(5px) !important;
    border: 1px solid rgba(100, 255, 218, 0.2) !important;
}

.premium-purchase-section {
    text-align: center;
    margin: 40px 0;
    padding: 40px;
    background: radial-gradient(ellipse at center, rgba(17, 34, 64, 0.8) 0%, rgba(10, 25, 47, 0.9) 100%);
    border-radius: 20px;
    border: 1px solid rgba(100, 255, 218, 0.2);
    animation: subtle-glow 5s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.purchase-content {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.premium-purchase-section h3 {
    color: #fff !important;
    font-size: 1.8em !important;
    font-weight: 800 !important;
    margin-bottom: 15px !important;
    text-shadow: 0 0 8px rgba(100, 255, 218, 0.6) !important;
    border: none !important;
    padding: 0 !important;
}

.premium-purchase-section h3::after {
    display: none !important;
}

.premium-purchase-button {
    display: inline-block !important;
    padding: 18px 50px !important;
    font-size: 1.4em !important;
    font-weight: 700 !important;
    color: #0a192f !important;
    background: #64ffda !important;
    border: 1px solid #64ffda !important;
    border-radius: 50px !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 0 20px rgba(100, 255, 218, 0.4), 0 4px 10px rgba(0,0,0,0.3) !important;
    transform: translateY(0) !important;
    cursor: pointer !important;
}

.premium-purchase-button:hover {
    transform: translateY(-4px) !important;
    box-shadow: 0 0 30px rgba(100, 255, 218, 0.6), 0 8px 20px rgba(0,0,0,0.4) !important;
    background: #fff !important;
    color: #0a192f !important;
    text-decoration: none !important;
}

@media (max-width: 768px) {
    .premium-content-wrapper { padding: 20px; }
    .premium-title { font-size: 2em; }
    .premium-content-wrapper h2 { font-size: 1.8em; }
    .premium-content-wrapper h3 { font-size: 1.5em; }
    .premium-content-wrapper p { font-size: 1em; }
    .premium-purchase-section { margin: 30px 0 !important; padding: 25px !important; }
    .premium-purchase-section h3 { font-size: 1.5em !important; }
    .premium-purchase-button { padding: 15px 30px !important; font-size: 1.2em !important; }
    .image-container img { max-width: 100% !important; }
}