*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --blue-deep: #0a1f6e;
  --blue-mid: #1a46c8;
  --blue-bright: #3b82f6;
  --blue-glow: #60a5fa;
  --green-accent: #22c55e;
  --white: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.72);
  --font-display: "Outfit", sans-serif;
  --font-body: "DM Sans", sans-serif;
}

body {
  font-family: var(--font-body);
  background: #0c2461;
  color: var(--white);
  line-height: 1.65;
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

address {
  font-style: normal;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 5vw;
  background: rgba(12, 36, 97, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}

.brand img {
  border-radius: 10px;
}

.site-header nav {
  display: flex;
  gap: 1.75rem;
}

.site-header nav a {
  font-size: 0.92rem;
  font-weight: 500;
  opacity: 0.85;
  transition: opacity 0.2s, color 0.2s;
}

.site-header nav a:hover,
.site-header nav a[aria-current="page"] {
  opacity: 1;
  color: var(--blue-glow);
}

.nav-toggle {
  display: none;
}

.nav-toggle-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Contact Hero */
.contact-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 4rem 5vw 3rem;
  background:
    radial-gradient(ellipse 70% 50% at 80% 20%, rgba(59, 130, 246, 0.2), transparent),
    linear-gradient(180deg, #123080 0%, #0c2461 100%);
}

.kicker {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-accent);
  margin-bottom: 1rem;
}

.contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.subtitle {
  font-size: 1.02rem;
  color: var(--text-muted);
  max-width: 480px;
}

.hero-visual img {
  margin: 0 auto;
  max-width: 360px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.35));
}

/* Contact Cards */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding: 3rem 5vw;
  max-width: 1100px;
  margin: 0 auto;
}

.contact-card {
  padding: 2rem 1.75rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(96, 165, 250, 0.22);
  transition: transform 0.25s, border-color 0.25s;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(96, 165, 250, 0.45);
}

.contact-card.wide {
  grid-column: span 1;
}

.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.35), rgba(26, 70, 200, 0.2));
  color: var(--blue-glow);
  margin-bottom: 1.25rem;
}

.contact-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.contact-card a {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--blue-glow);
  margin-bottom: 0.5rem;
  word-break: break-all;
}

.contact-card a:hover {
  color: var(--green-accent);
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.contact-card .highlight {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.contact-card address {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
}

/* Support Notice */
.support-notice {
  padding: 3rem 5vw 4rem;
}

.notice-inner {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(26, 70, 200, 0.4), rgba(59, 130, 246, 0.15));
  border: 1px solid rgba(96, 165, 250, 0.3);
}

.notice-img {
  flex-shrink: 0;
  max-width: 160px;
  border-radius: 16px;
  opacity: 0.85;
}

.notice-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.65rem);
  margin-bottom: 0.85rem;
}

.notice-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.notice-content p:last-child {
  margin-bottom: 0;
}

/* FAQ Preview */
.faq-preview {
  padding: 3rem 5vw 5rem;
  background: rgba(0, 0, 0, 0.15);
}

.faq-preview h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  text-align: center;
  margin-bottom: 2rem;
}

.faq-list {
  list-style: none;
  max-width: 680px;
  margin: 0 auto 1.5rem;
}

.faq-list li {
  padding: 1.1rem 1.25rem;
  margin-bottom: 0.5rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.95rem;
  position: relative;
  padding-right: 2.5rem;
  transition: background 0.2s;
}

.faq-list li:hover {
  background: rgba(255, 255, 255, 0.1);
}

.faq-list li::after {
  content: "›";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--blue-glow);
  opacity: 0.6;
}

.faq-note {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* Footer */
.site-footer {
  padding: 2.5rem 5vw;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.25);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer-tag {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 900px) {
  .contact-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .subtitle {
    margin: 0 auto;
  }

  .contact-cards {
    grid-template-columns: 1fr;
  }

  .notice-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .nav-toggle-btn {
    display: flex;
  }

  .site-header nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(12, 36, 97, 0.98);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .site-header nav a {
    padding: 1rem 5vw;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-toggle:checked ~ nav {
    max-height: 280px;
  }

  .nav-toggle:checked + .nav-toggle-btn span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle:checked + .nav-toggle-btn span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked + .nav-toggle-btn span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}