:root {
    --primary-color: #007bff;
    --secondary-color: #e50914;
    --success-color: #198754;
    --warning-color: #fd7e14;
    --danger-color: #dc3545;
    --info-color: #20c997;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #6c757d;
    --darker-gray: #495057;
    --darkest-gray: #343a40;
    --text-color: #333;
    --heading-color: #212529;
    --white-color: #ffffff;
    --body-font: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --base-font-size: 16px;
    --border-radius: 0.5rem;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--body-font); line-height: 1.7; color: var(--text-color); background-color: var(--light-gray); font-weight: 400; font-size: var(--base-font-size); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 15px; }
a { text-decoration: none; color: var(--primary-color); transition: all 0.2s ease; }
a:hover { color: #0056b3; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; vertical-align: middle; }
h1, h2, h3, h4, h5, h6 { font-weight: 600; color: var(--heading-color); line-height: 1.4; margin-bottom: 1rem; }
h1 { font-size: 2.5rem; font-weight: 700; text-align: center; margin-bottom: 1.5rem; color: var(--secondary-color);}
h2 { font-size: 1.75rem; font-weight: 700; color: var(--primary-color); border-bottom: 2px solid var(--medium-gray); padding-bottom: 0.75rem; margin-bottom: 1.5rem;}
h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--darkest-gray); font-weight: 600;}
p { margin-bottom: 1rem; color: var(--darker-gray); }
p:last-child { margin-bottom: 0; }
ul { list-style: none; padding-left: 0; margin-bottom: 0;}
li { margin-bottom: 0.75rem; }
section { padding: 3rem 0; }
.section-bg-white { background-color: var(--white-color); }
.section-bg-light { background-color: var(--light-gray); }
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.icon { display: inline-block; width: 18px; height: 18px; background-color: var(--medium-gray); border-radius: 3px; vertical-align: -3px; margin-right: 6px; }

/* Header styles removed as header is removed */

.breadcrumb { background-color: var(--medium-gray); padding: 0.75rem 0; font-size: 0.9rem; margin-bottom: 3rem; /* Removed margin-top potentially needed if header was present */ }
.breadcrumb a { color: var(--dark-gray); }
.breadcrumb a:hover { color: var(--primary-color); }
.breadcrumb span { margin: 0 0.5rem; color: var(--dark-gray); }
.breadcrumb strong { color: var(--darkest-gray); font-weight: 600; }

.platform-section { padding-top: 0; }
.page-description { max-width: 750px; margin-left: auto; margin-right: auto; margin-bottom: 3.5rem; color: var(--dark-gray); text-align: center;}

.platform-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.platform-item { background-color: var(--white-color); border: 1px solid var(--medium-gray); border-radius: var(--border-radius); padding: 2rem; box-shadow: 0 3px 7px rgba(0,0,0,0.05); }
.platform-item h2 { font-size: 1.5rem; margin-bottom: 1rem; color: var(--primary-color); text-align: left; border-bottom: none; padding-bottom: 0; }
.platform-item .platform-description { font-size: 0.9rem; color: var(--dark-gray); margin-bottom: 1.5rem; text-align: left;}

.link-list { list-style: none; padding-left: 0; }
.link-list li { border-bottom: 1px dashed var(--medium-gray); padding-bottom: 1rem; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.75rem; }
.link-list li:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.link-list .link-favicon { width: 16px; height: 16px; background-color: var(--medium-gray); border-radius: 2px; flex-shrink: 0; }
.link-content-wrapper { flex-grow: 1; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.link-main-info { display: flex; flex-wrap: wrap; align-items: center; gap: 0 0.5rem; }
.link-list .site-link { font-weight: 600; color: var(--heading-color); font-size: 1rem; }
.link-list .site-link:hover { color: var(--primary-color); text-decoration: underline; }
.link-list .site-desc { font-size: 0.85rem; color: var(--dark-gray); white-space: nowrap; }
.link-list .detail-link-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: var(--dark-gray);
    text-decoration: none;
    border: 1px solid var(--medium-gray);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    white-space: nowrap;
    transition: all 0.2s ease;
    flex-shrink: 0;
}
.link-list .detail-link-icon svg {
    width: 1em;
    height: 1em;
    fill: currentColor;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}
.link-list .detail-link-icon:hover {
    background-color: #e7f3ff;
    border-color: var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
}
.link-list .detail-link-icon:hover svg {
    opacity: 1;
}

.faq-section { background-color: var(--light-gray); padding-bottom: 5rem;}
.faq-section h2 { color: var(--info-color); }
.faq-container { max-width: 850px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--medium-gray); }
.faq-item:last-child { border-bottom: none; }
.faq-item summary { padding: 1.5rem 0; font-size: 1.1rem; font-weight: 600; color: var(--darkest-gray); cursor: pointer; list-style: none; position: relative; padding-right: 2.5rem; transition: color 0.2s ease;}
.faq-item summary:hover { color: var(--primary-color); }
.faq-item summary::after { content: '+'; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 1.5rem; color: var(--primary-color); transition: transform 0.2s ease; }
.faq-item[open] summary::after { content: '−'; transform: translateY(-50%) rotate(180deg); }
.faq-item[open] summary { color: var(--primary-color); }
.faq-answer { padding: 0.5rem 0 1.75rem 0; font-size: 0.95rem; color: var(--darker-gray); line-height: 1.8; }
.faq-answer p { margin-bottom: 1rem; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-item summary::-webkit-details-marker { display: none; }

/* Footer styles removed as footer is removed */

@media (max-width: 992px) {
    h1 { font-size: 2.25rem; } h2 { font-size: 1.6rem; }
    .platform-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; } h2 { font-size: 1.5rem; }
    /* Header styles removed */
    section { padding: 2rem 0; }
    h1 { margin-bottom: 1rem;}
    .page-description { margin-bottom: 2.5rem; font-size: 0.95rem; }
    .breadcrumb { margin-bottom: 1.5rem; }
    .platform-grid { gap: 1.5rem;}
    .platform-item { padding: 1.5rem; }
    .link-list .link-main-info { flex-wrap: nowrap; }
    .link-list .link-main-info .site-desc { white-space: normal; }
    .link-list .detail-link-icon { margin-left: 0.5rem; }

     .faq-item summary { font-size: 1rem; padding-right: 1.5rem; }
     .faq-answer { font-size: 0.9rem; }
}