:root {
  --av2-bg: #f4f8ff;
  --av2-surface: #ffffff;
  --av2-border: #d7e3f7;
  --av2-text: #1a2a44;
  --av2-muted: #4b6084;
  --av2-primary: #0c6bce;
  --av2-shadow: 0 20px 44px -30px rgba(19, 49, 103, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background:
    radial-gradient(circle at 90% -10%, rgba(12, 107, 206, 0.14) 0, transparent 44%),
    radial-gradient(circle at -10% 10%, rgba(41, 181, 122, 0.12) 0, transparent 32%),
    var(--av2-bg);
  color: var(--av2-text);
  font-family: "Public Sans", "Segoe UI", sans-serif;
  line-height: 1.6;
}

.av2-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
}

.av2-hero {
  border: 1px solid var(--av2-border);
  border-radius: 22px;
  background: linear-gradient(125deg, #ffffff, #eef5ff 52%, #f0fcff);
  box-shadow: var(--av2-shadow);
  padding: 1.7rem;
}

.av2-kicker {
  margin: 0;
  display: inline-block;
  border-radius: 999px;
  border: 1px solid #d5e4ff;
  background: #eaf2ff;
  color: #19458b;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.32rem 0.72rem;
}

.av2-hero h1 {
  margin: 0.84rem 0 0.5rem;
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: clamp(1.65rem, 4vw, 2.55rem);
  line-height: 1.15;
  max-width: 24ch;
}

.av2-hero p {
  margin: 0;
  color: var(--av2-muted);
  max-width: 72ch;
}

.av2-pill-row {
  margin-top: 0.92rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.av2-pill-row span {
  border: 1px solid var(--av2-border);
  border-radius: 999px;
  background: #f4f8ff;
  color: #1f4f92;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 0.34rem 0.7rem;
}

.av2-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.av2-card {
  border: 1px solid var(--av2-border);
  border-radius: 16px;
  background: var(--av2-surface);
  box-shadow: var(--av2-shadow);
  padding: 1rem;
}

.av2-card h2 {
  margin: 0;
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: clamp(1.08rem, 2.3vw, 1.45rem);
}

.av2-card p,
.av2-card li {
  color: var(--av2-muted);
}

.av2-card ul {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
}

.av2-card ul li + li {
  margin-top: 0.22rem;
}

.av2-wide {
  margin-top: 1rem;
}

.av2-category-grid {
  margin-top: 0.78rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.68rem;
}

.av2-category-grid article {
  border: 1px solid #dbe6f8;
  border-radius: 12px;
  background: #f8fbff;
  padding: 0.7rem 0.75rem;
}

.av2-category-grid h3 {
  margin: 0;
  color: #1e487f;
  font-size: 1rem;
}

.av2-category-grid p {
  margin: 0.32rem 0 0;
  font-size: 0.9rem;
}

.av2-detail-grid {
  margin-top: 0.72rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.66rem;
}

.av2-detail-grid article {
  border: 1px solid #dbe6f8;
  border-radius: 12px;
  background: #f9fbff;
  padding: 0.7rem 0.75rem;
}

.av2-detail-grid h3 {
  margin: 0;
  color: #1f487d;
  font-size: 0.98rem;
}

.av2-detail-grid p {
  margin: 0.32rem 0 0;
  font-size: 0.88rem;
}

.av2-links {
  margin-top: 0.78rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.58rem;
}

.av2-links a {
  text-decoration: none;
  border: 1px solid #c6d8fa;
  border-radius: 999px;
  background: #eef5ff;
  color: #184a8f;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 0.34rem 0.72rem;
}

.av2-faq-list {
  margin-top: 0.75rem;
  display: grid;
  gap: 0.5rem;
}

.av2-faq-list .faq-item {
  border: 1px solid #dbe6f8;
  border-radius: 11px;
  background: #f9fbff;
  padding: 0.56rem 0.66rem;
}

.av2-faq-list .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  color: #1b456f;
  font-weight: 600;
}

.av2-faq-list .faq-item summary::-webkit-details-marker { display: none; }

.faq-chevron {
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
}

.av2-faq-list .faq-item p {
  margin: 0.42rem 0 0;
  font-size: 0.9rem;
}

.av2-disclaimer {
  margin-top: 0.76rem;
  color: #5f6f89;
  font-size: 0.84rem;
}

/* ---------- ad card ---------- */
.av2-ad-card {
  margin-top: 1rem;
  border: 1px solid var(--av2-border);
  border-radius: 16px;
  background: var(--av2-surface);
  box-shadow: var(--av2-shadow);
  padding: 1rem;
}

.av2-ad-label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #7b8da8;
}

.av2-ad-card h2 {
  margin: 0.3rem 0 0;
  font-family: "Sora", sans-serif;
  font-size: clamp(1rem, 2vw, 1.28rem);
}

.av2-ad-slot {
  margin-top: 0.7rem;
  min-height: 100px;
  border: 1px dashed #c4d4ee;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f7faff;
}

.av2-ad-note {
  margin: 0.5rem 0 0;
  font-size: 0.78rem;
  color: #8193ad;
}

/* ---------- fade-section ---------- */
.fade-section.fade-ready {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 860px) {
  .av2-grid {
    grid-template-columns: 1fr;
  }

  .av2-category-grid {
    grid-template-columns: 1fr;
  }

  .av2-detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .av2-main {
    padding: 0.8rem 0.75rem 2rem;
  }

  .av2-hero,
  .av2-card {
    padding: 0.85rem;
  }

}