/* theme:auto font:system prefix:k405 */
/* Auto-generated from inline critical CSS */
:root {
  --bg-dark:#060f0e;
  --bg-dark-2:#0d1a18;
  --bg-card:#142522;
  --text-white:#f0f6fc;
  --text-muted:#8b949e;
  --border:#1a3530;
  --accent:#14b8a6;
  
  --bg-section: color-mix(in srgb, var(--bg-dark) 92%, white);
  --border-dark: color-mix(in srgb, var(--border) 60%, transparent);
  --border-light: var(--border);
  --text-body: var(--text-muted);
  --text-dark: var(--text-white);
  --bg-light: var(--bg-dark);
  --radius-btn: 8px;
  --radius-card: 12px;
  --radius-badge: 20px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, Arial, sans-serif; background: var(--bg-dark); color: var(--text-white); line-height: 1.8; }
a { color: inherit; text-decoration: none; }

/* Header */
header { position: sticky; top: 0; z-index: 100; background: var(--bg-dark); padding: 0 20px; }
header .k405-header-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 60px; }
header.k405-scrolled { backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--border); }
.k405-logo { font-size: 20px; font-weight: 700; color: var(--text-white); }
.k405-logo span { color: var(--accent); }
nav { display: flex; gap: 28px; align-items: center; }
nav a { color: var(--text-muted); font-size: 14px; font-weight: 500; transition: opacity 0.2s; }
nav a:hover { color: var(--text-white); }
.k405-burger { display: none; background: none; border: none; color: var(--text-white); font-size: 22px; cursor: pointer; }

/* Hero */
.k405-hero { background: var(--bg-dark); color: var(--text-white); padding: 40px 20px 24px; contain: layout; }
.k405-hero-inner { max-width: 900px; margin: 0 auto; }
.k405-date-badge { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: var(--radius-badge); padding: 4px 14px; font-size: 12px; color: var(--text-muted); margin-bottom: 20px; flex-wrap: wrap; }
.k405-date-sep { opacity: .4; }
.k405-hero h1 { font-size: clamp(24px, 5vw, 44px); font-weight: 800; line-height: 1.15; margin-bottom: 20px; max-width: 720px; }
.k405-hero-sub { font-size: 17px; line-height: 1.75; color: var(--text-muted); max-width: 620px; margin-bottom: 32px; display: block; }

/* Buttons */
.k405-cta-btn, .btn-primary, .cta-btn, .btn-cta, .btn-claim {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #fff; padding: 14px 28px;
  border-radius: var(--radius-btn); font-weight: 700; font-size: 16px;
  border: none; cursor: pointer; text-decoration: none;
  transition: opacity 0.2s; box-shadow: 0 4px 14px rgba(0,0,0,.25);
  margin-bottom: 24px;
}
.k405-cta-btn:hover, .btn-primary:hover, .cta-btn:hover { opacity: 0.88; transform: translateY(-1px); }

/* TOC */
.k405-toc-block { background: rgba(255,255,255,.05); border: 1px solid var(--border); border-radius: var(--radius-card); max-width: 900px; margin: 0 auto 16px; overflow: hidden; contain: layout; min-height: 54px; }
.k405-toc-toggle { width: 100%; display: flex; align-items: center; gap: 10px; padding: 14px 20px; background: none; border: none; cursor: pointer; font-size: 15px; font-weight: 600; color: var(--text-white); text-align: left; }
.k405-toc-toggle:hover { background: rgba(255,255,255,.04); }
.k405-toc-toggle-icon { font-size: 16px; color: var(--accent); }
.k405-toc-arrow { margin-left: auto; font-size: 12px; color: var(--text-muted); transition: transform .25s; }
.k405-toc-block.k405-open .k405-toc-arrow { transform: rotate(180deg); }
.k405-toc-list { display: none; padding: 0 20px 16px; border-top: 1px solid var(--border); }
.k405-toc-block.k405-open .k405-toc-list { display: block; }
.k405-toc-link { display: flex; align-items: baseline; gap: 10px; padding: 9px 0; font-size: 14px; color: var(--text-muted); border-bottom: 1px solid var(--border); text-decoration: none; transition: color .2s; }
.k405-toc-link:last-child { border-bottom: none; }
.k405-toc-link:hover { color: var(--accent); }
.k405-toc-num { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 11px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; }

/* Content */
.k405-content-wrap { max-width: 900px; margin: 0 auto; padding: 0 20px 80px; }
.k405-content-section { padding-top: 56px; border-top: 1px solid var(--border); margin-top: 48px; }
.k405-content-section:first-child { border-top: none; margin-top: 0; }
.k405-content-section h2 { font-size: 26px; font-weight: 700; color: var(--text-white); margin-bottom: 20px; }
.k405-content-section h3 { font-size: 20px; font-weight: 600; color: var(--text-white); margin: 28px 0 12px; }
.k405-content-section p { font-size: 16px; line-height: 1.8; color: var(--text-muted); margin-bottom: 16px; }
.k405-section-img { width: 100%; height: 300px; object-fit: cover; border-radius: 10px; margin-bottom: 24px; display: block; }

/* Tables */
.k405-table-wrap { overflow-x: auto; border-radius: 10px; border: 1px solid var(--border); margin-bottom: 24px; }
.k405-table-wrap table { width: 100%; border-collapse: collapse; font-size: 14px; }
.k405-table-wrap thead tr { background: rgba(255,255,255,.08); color: var(--text-white); }
.k405-table-wrap thead th { padding: 12px 16px; font-weight: 600; text-align: left; }
.k405-table-wrap tbody tr:nth-child(even) { background: rgba(255,255,255,.03); }
.k405-table-wrap tbody td { padding: 10px 16px; border-bottom: 1px solid var(--border); color: var(--text-muted); }
.k405-table-wrap tbody td:first-child { font-weight: 600; color: var(--text-white); }

/* Lists */
.k405-content-section ul, .k405-content-section ol { padding-left: 0; list-style: none; margin-bottom: 20px; }
.k405-content-section ul li, .k405-content-section ol li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; font-size: 16px; line-height: 1.6; color: var(--text-muted); }
.k405-content-section ul li::before { content: "✓"; color: var(--accent); font-weight: 700; flex-shrink: 0; margin-top: 3px; }
.k405-content-section ul li.k405-term-item { display: block; background: rgba(255,255,255,.04); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; margin-bottom: 10px; }
.k405-content-section ul li.k405-term-item::before { display: none; }
.k405-term-label { display: block; font-weight: 700; font-size: 15px; color: var(--text-white); margin-bottom: 4px; }
.k405-term-desc { font-size: 15px; color: var(--text-muted); line-height: 1.6; }
.k405-content-section ol { counter-reset: ol-counter; }
.k405-content-section ol li { counter-increment: ol-counter; }
.k405-content-section ol li::before { content: counter(ol-counter); background: var(--accent); color: white; width: 22px; height: 22px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }

/* FAQ */
.k405-faq-item { margin-bottom: 10px; }
.k405-faq-question { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; background: rgba(255,255,255,.05); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius-card); cursor: pointer; font-weight: 600; font-size: 15px; color: var(--text-white); }
.k405-faq-icon { color: var(--accent); transition: transform 0.2s; margin-left: 12px; flex-shrink: 0; }
.k405-faq-answer { display: none; padding: 14px 20px; font-size: 15px; color: var(--text-muted); line-height: 1.7; border: 1px solid var(--border); border-top: none; border-radius: 0 0 var(--radius-card) var(--radius-card); }
.k405-faq-item.k405-open .k405-faq-answer { display: block; }
.k405-faq-item.k405-open .k405-faq-icon { transform: rotate(45deg); }

/* Footer */
footer { background: var(--bg-dark); color: var(--text-muted); padding: 40px 20px 24px; font-size: 14px; }
.k405-footer-inner { max-width: 900px; margin: 0 auto; }
.k405-footer-top { margin-bottom: 24px; }
.k405-footer-links-section { display: flex; gap: 40px; flex-wrap: wrap; margin-bottom: 20px; }
.k405-footer-links-col { min-width: 140px; }
.k405-footer-links-col a { display: block; color: var(--text-muted); padding: 3px 0; font-size: 13px; transition: color .2s; }
.k405-footer-links-col a:hover { color: var(--accent); }
.k405-footer-rg-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.k405-footer-rg-badge { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: 20px; padding: 4px 12px; font-size: 12px; color: var(--text-muted); }
.k405-footer-age { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; background: #dc2626; color: #fff; font-size: 11px; font-weight: 700; }
.k405-footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; }
.k405-footer-copy { font-size: 13px; color: var(--text-muted); }
.k405-footer-disclaimer { font-size: 12px; color: var(--text-muted); opacity: .6; margin-top: 8px; line-height: 1.6; }

/* Section generic */
section { padding: 0; }

/* Responsive */
@media (max-width: 768px) {
  .k405-burger { display: block; }
  nav { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: var(--bg-dark); flex-direction: column; justify-content: center; align-items: center; gap: 32px; z-index: 200; }
  nav.k405-open { display: flex; }
  nav a { font-size: 20px; }
  .k405-hero h1 { font-size: 26px; }
  .k405-content-section h2 { font-size: 22px; }
  .k405-footer-links-section { flex-direction: column; gap: 20px; }
  .k405-table-wrap { font-size: 13px; }
}