:root {
  --blue-900: #1716a4;
  --blue-800: #2326c5;
  --violet: #6137ee;
  --violet-2: #7c5cff;
  --gold: #ffd21f;
  --gold-2: #ffbe17;
  --ink: #151c45;
  --muted: #5c6387;
  --soft: #f5f7ff;
  --line: #dfe3f5;
  --white: #fff;
  --shadow: 0 22px 60px rgba(30, 33, 120, .14);
  --radius: 8px;
  --container: 1760px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  background: #f7f8ff;
  color: var(--ink);
  font-family: Inter, "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }
h2, h3, p { margin: 0; }

.wrap {
  width: min(100%, var(--container));
  margin: 0 auto;
  padding: 0 clamp(24px, 4.8vw, 96px);
}

body > header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: linear-gradient(135deg, #1716a4 0%, #2b2ad2 52%, #4628c8 100%);
  color: #fff;
  box-shadow: 0 16px 38px rgba(36, 28, 190, .16);
}
.nav {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  color: #fff;
  font-size: 24px;
  font-weight: 900;
}
.navlinks {
  display: flex;
  align-items: center;
  gap: 34px;
  color: rgba(255, 255, 255, .9);
  font-size: 14px;
  font-weight: 800;
  flex-wrap: wrap;
}
.navlinks a {
  position: relative;
  padding: 10px 0;
}
.navlinks a::after {
  position: absolute;
  right: 0;
  bottom: 1px;
  left: 0;
  height: 3px;
  border-radius: 999px;
  background: #fff;
  content: "";
  opacity: 0;
  transform: scaleX(.25);
  transition: .18s ease;
}
.navlinks a:hover::after,
.navlinks a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.breadcrumb {
  color: var(--muted);
  font-size: 14px;
  margin: 22px auto 0;
}
.breadcrumb a {
  color: var(--blue-800);
  font-weight: 800;
}

.hero {
  position: relative;
  margin: 10px;
  overflow: hidden;
  border-radius: 22px;
  background: radial-gradient(circle at 80% 40%, rgba(124, 92, 255, .62), transparent 28%),
    linear-gradient(135deg, #1716a4 0%, #2b2ad2 52%, #4628c8 100%);
  color: #fff;
  box-shadow: 0 30px 90px rgba(36, 28, 190, .22);
}
.hero::after {
  position: absolute;
  right: clamp(-210px, -9vw, -120px);
  bottom: clamp(-260px, -12vw, -160px);
  width: clamp(620px, 45vw, 980px);
  height: clamp(620px, 45vw, 980px);
  border: clamp(64px, 5vw, 104px) solid rgba(255, 255, 255, .08);
  border-radius: 999px;
  content: "";
}
.hero .wrap {
  position: relative;
  z-index: 1;
  min-height: clamp(380px, 30vw, 560px);
  display: grid;
  align-content: center;
  padding-top: clamp(62px, 7vw, 118px);
  padding-bottom: clamp(72px, 8vw, 130px);
}
.eyebrow {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  background: rgba(255, 255, 255, .16);
  padding: 10px 18px;
  color: rgba(255, 255, 255, .94);
  font-size: 13px;
  font-weight: 900;
}
.hero h1 {
  max-width: 980px;
  margin: 22px 0 18px;
  font-size: clamp(48px, 5.1vw, 96px);
  font-weight: 900;
  line-height: 1.05;
}
.lead {
  max-width: 900px;
  color: rgba(255, 255, 255, .82);
  font-size: clamp(18px, 1.1vw, 23px);
  font-weight: 600;
  line-height: 1.9;
}
.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: #312200;
  font-weight: 900;
  box-shadow: 0 14px 30px rgba(255, 197, 28, .28);
  transition: transform .16s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn.secondary,
.cta .btn {
  border: 1px solid rgba(255, 255, 255, .24);
  background: rgba(255, 255, 255, .16);
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .18);
}

main section { padding: clamp(52px, 5vw, 92px) 0; }
h2 {
  margin-bottom: 24px;
  color: var(--blue-900);
  font-size: clamp(30px, 2.4vw, 48px);
  font-weight: 900;
  line-height: 1.18;
}
h3 {
  color: var(--ink);
  font-size: 22px;
  font-weight: 900;
  line-height: 1.35;
}
p { color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 1.8vw, 30px);
}
.card, .step, .figure, .faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.card {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: clamp(24px, 2.1vw, 34px);
}
.card h2, .card h3 {
  margin: 0;
  font-size: clamp(21px, 1.35vw, 28px);
}
.card p {
  font-size: 15px;
  line-height: 1.8;
}
.card > a:last-child,
.product-detail-link {
  color: var(--blue-800);
  font-weight: 900;
}

.content { max-width: 980px; }
.content p { margin: 0 0 18px; }
.content h2 { margin-top: 42px; }
.content h3 { margin-top: 28px; }
.toc {
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #eef1ff;
  padding: 20px 24px;
}
.toc a {
  display: block;
  margin: 6px 0;
  color: var(--blue-800);
  font-weight: 800;
}
.steps { display: grid; gap: 14px; }
.step { padding: 22px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid var(--line); padding: 13px; text-align: left; vertical-align: top; }
th { background: #eef1ff; color: var(--blue-900); }
ul, ol { padding-left: 24px; }
.checklist { list-style: none; padding-left: 0; }
.checklist li { position: relative; margin: 10px 0; padding-left: 28px; color: var(--muted); }
.checklist li::before { position: absolute; left: 0; color: var(--violet); font-weight: 900; content: "✓"; }
.figure { margin: 28px 0; padding: 18px; }
.figure img { display: block; width: 100%; height: auto; border-radius: var(--radius); }
.note {
  border-left: 5px solid var(--gold);
  border-radius: var(--radius);
  background: #fff8d7;
  padding: 18px 20px;
}
.meta, .updated { color: var(--muted); font-size: 13px; }
.tag {
  display: inline-block;
  width: fit-content;
  border-radius: 999px;
  background: #ececff;
  color: var(--violet);
  padding: 4px 11px;
  font-size: 13px;
  font-weight: 900;
}
.download-card {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}
.download-card ul {
  margin: 0;
  color: var(--muted);
}
.cta {
  border-radius: 18px;
  background: radial-gradient(circle at 92% 24%, rgba(255, 255, 255, .2), transparent 26%),
    linear-gradient(135deg, var(--blue-900), var(--violet));
  color: #fff;
  padding: clamp(28px, 3vw, 46px);
}
.cta h2, .cta p { color: #fff; }
.answer-section { padding-top: 28px; padding-bottom: 0; }
.answer-box {
  border: 1px solid #d9d9ef;
  border-left: 5px solid var(--violet);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #eef0ff, #f7f5ff);
  padding: 20px 24px;
}
.answer-box strong { display: block; margin-bottom: 8px; color: var(--violet); font-size: 15px; }
.answer-box p { color: var(--blue-900); font-size: 18px; line-height: 1.75; }
.faq details { padding: 15px 18px; margin: 12px 0; box-shadow: 0 10px 26px rgba(30,33,120,.06); }
.faq summary { color: var(--blue-900); font-weight: 900; cursor: pointer; }
.faq details p { margin: 12px 0 0; }
.legal { max-width: 980px; }
.legal h2 { margin-top: 36px; }
.muted { color: var(--muted); }

footer {
  margin: 10px;
  margin-top: clamp(40px, 4vw, 74px);
  border-radius: 22px 22px 0 0;
  background: #11143f;
  color: #dfe3ff;
  padding: 34px 0;
}
footer a { color: #fff; font-weight: 800; }

@media (max-width: 980px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav { align-items: flex-start; flex-direction: column; padding-top: 18px; padding-bottom: 18px; }
  .navlinks { gap: 18px; }
}

@media (max-width: 760px) {
  .wrap { padding: 0 20px; }
  .hero { margin: 0; border-radius: 0; }
  .hero .wrap { min-height: auto; padding-top: 52px; padding-bottom: 64px; }
  .hero h1 { font-size: 42px; }
  .lead { font-size: 18px; }
  .grid, .download-card { grid-template-columns: 1fr; }
  main section { padding: 42px 0; }
  footer { margin-right: 0; margin-left: 0; border-radius: 0; }
}