:root {
  --bg: #0a0a0f;
  --bg-card: #14141c;
  --text: #f2f2f5;
  --muted: #a8a8b8;
  --accent: #ff0050;
  --accent-2: #a100ff;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #6eb6ff; }
a:hover { color: #9ed0ff; }

.wrap { width: min(var(--max), 92vw); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}
.logo {
  font-weight: 800;
  font-size: 1.35rem;
  text-decoration: none;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
}
.nav a:hover { color: var(--text); }

.hero {
  padding: 3.5rem 0 2.5rem;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255, 0, 80, 0.22), transparent),
    radial-gradient(ellipse 50% 40% at 90% 20%, rgba(161, 0, 255, 0.15), transparent);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
}
.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}
.lead { color: var(--muted); font-size: 1.08rem; max-width: 38rem; }
.hero-visual {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  min-height: 280px;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1028, #2a1038 45%, #3d0f2e);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.hero-visual img {
  width: 100%;
  height: auto;
  min-height: 280px;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.hero-visual figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2.5rem 1.25rem 1rem;
  font-size: 0.85rem;
  color: #e8e8ee;
  background: linear-gradient(transparent, rgba(10, 10, 15, 0.92));
}

.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px rgba(255, 0, 80, 0.35);
}
.btn-primary:hover { filter: brightness(1.08); color: #fff; }
.btn-ghost {
  color: var(--text);
  border: 1px solid var(--line);
  background: transparent;
}
.btn-ghost:hover { background: rgba(255,255,255,0.05); color: #fff; }

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-top: 1.25rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.trust-strip strong { color: var(--text); }

section { padding: 2.75rem 0; }
section:nth-child(even) { background: rgba(255,255,255,0.02); }
h2 {
  font-size: clamp(1.45rem, 3vw, 1.95rem);
  margin: 0 0 0.75rem;
  line-height: 1.25;
}
h3 { font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }
p { margin: 0 0 1rem; }

.toc {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0 2rem;
}
.toc h2 { font-size: 1.1rem; margin-bottom: 0.75rem; }
.toc ol { margin: 0; padding-left: 1.2rem; }
.toc li { margin: 0.35rem 0; }
.toc a { text-decoration: none; font-weight: 600; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}
.link-card {
  display: block;
  padding: 1.15rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s;
}
.link-card:hover {
  border-color: rgba(255, 0, 80, 0.45);
  transform: translateY(-2px);
  color: inherit;
}
.link-card h3 { margin: 0 0 0.35rem; color: #fff; font-size: 1.05rem; }
.link-card p { margin: 0; font-size: 0.92rem; color: var(--muted); }

.table-wrap { overflow-x: auto; margin: 1rem 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  border: 1px solid var(--line);
  padding: 0.65rem 0.85rem;
  text-align: left;
}
th { background: var(--bg-card); }

.faq details {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 0.65rem;
}
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { margin: 0.75rem 0 0; color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 5rem;
  font-size: 0.92rem;
  color: var(--muted);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
}
.footer-grid h4 { color: var(--text); margin: 0 0 0.65rem; font-size: 0.95rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin: 0.35rem 0; }
.footer-grid a { color: var(--muted); text-decoration: none; }
.footer-grid a:hover { color: var(--text); }
.footer-bottom { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--line); }

.badge-18 {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: #2a1020;
  color: #ff8cb0;
  font-size: 0.75rem;
  font-weight: 800;
  vertical-align: middle;
  margin-left: 0.35rem;
}

.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  padding: 0.65rem;
  background: rgba(10, 10, 15, 0.96);
  border-top: 1px solid var(--line);
  gap: 0.5rem;
}
.sticky-cta .btn { flex: 1; padding: 0.75rem; font-size: 0.92rem; }
@media (max-width: 768px) {
  .sticky-cta { display: flex; }
  body { padding-bottom: 4.5rem; }
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--text); }

.promo-box {
  background: linear-gradient(135deg, rgba(255,0,80,0.12), rgba(161,0,255,0.12));
  border: 1px dashed rgba(255,0,80,0.4);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.promo-code {
  font-family: ui-monospace, monospace;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #fff;
}

.content-narrow { max-width: 42rem; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 2.75rem;
  margin-bottom: 1.25rem;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}