:root {
  --ogp-ink-0a7f: #0b1020;
  --ogp-surface-1c3d: rgba(255,255,255,0.08);
  --ogp-surface-2f91: rgba(255,255,255,0.14);
  --ogp-accent-7b2e: #7c5cff;
  --ogp-accent2-4d8a: #22c55e;
  --ogp-warm-9e31: #ffb020;
  --ogp-border-6a0c: rgba(255,255,255,0.18);
  --ogp-shadow-3f6b: 0 18px 60px rgba(0,0,0,0.45);
  --ogp-radius-8c2a: 18px;
  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-display: 'Georgia', 'Times New Roman', serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-base);
  line-height: 1.7;
  color: #e8e8e8;
  background: linear-gradient(135deg, var(--ogp-ink-0a7f) 0%, #1a1f3a 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--ogp-accent-7b2e);
  text-decoration: none;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

a:hover {
  color: var(--ogp-warm-9e31);
  text-shadow: 0 0 8px rgba(124, 92, 255, 0.4);
}

a:focus-visible {
  outline: 3px solid var(--ogp-accent2-4d8a);
  outline-offset: 4px;
  border-radius: 4px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: #ffffff;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  margin-top: 2.5rem;
}

h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
}

p {
  margin-bottom: 1.2rem;
}

ul, ol {
  margin-left: 1.5rem;
  margin-bottom: 1.2rem;
}

li {
  margin-bottom: 0.5rem;
}

.site-header-home, .site-header-faq, .site-header-about {
  background: var(--ogp-surface-1c3d);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ogp-border-6a0c);
  padding: 1.2rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--ogp-shadow-3f6b);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-branding {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ogp-warm-9e31);
  letter-spacing: 0.02em;
  text-shadow: 0 2px 12px rgba(255, 176, 32, 0.3);
}

.main-nav-home, .main-nav-faq, .main-nav-about {
  display: flex;
  gap: 1.8rem;
  flex-wrap: wrap;
}

.nav-link {
  font-size: 1.05rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: background 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.nav-link:hover {
  background: var(--ogp-surface-2f91);
  transform: translateY(-2px);
}

.nav-link.active {
  background: var(--ogp-accent-7b2e);
  color: #ffffff;
}

.crumb-faq-7c1f, .crumb-about-3e5b {
  max-width: 1200px;
  margin: 1.5rem auto 0;
  padding: 0 1.5rem;
}

.crumb-faq-7c1f ol, .crumb-about-3e5b ol {
  list-style: none;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin: 0;
  padding: 0.8rem 1.2rem;
  background: var(--ogp-surface-1c3d);
  border-radius: var(--ogp-radius-8c2a);
  border: 1px solid var(--ogp-border-6a0c);
}

.crumb-faq-7c1f li, .crumb-about-3e5b li {
  margin: 0;
  display: flex;
  align-items: center;
}

.crumb-faq-7c1f li:not(:last-child)::after, .crumb-about-3e5b li:not(:last-child)::after {
  content: '/';
  margin-left: 0.8rem;
  color: var(--ogp-border-6a0c);
}

.wrap-home-3a71, .wrap-faq-0e6a, .wrap-about-8d20 {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  flex: 1;
}

.hero-home-6d8b {
  background: linear-gradient(145deg, var(--ogp-surface-1c3d) 0%, var(--ogp-surface-2f91) 100%);
  border: 1px solid var(--ogp-border-6a0c);
  border-radius: var(--ogp-radius-8c2a);
  padding: 3rem 2.5rem;
  margin-bottom: 3rem;
  box-shadow: var(--ogp-shadow-3f6b);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-home-6d8b h1 {
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, var(--ogp-warm-9e31) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-intro {
  font-size: 1.15rem;
  line-height: 1.8;
  color: #d0d0d0;
}

.content-section-home-a, .content-section-home-b, .content-section-home-c, .content-section-home-d {
  background: var(--ogp-surface-1c3d);
  border: 1px solid var(--ogp-border-6a0c);
  border-radius: var(--ogp-radius-8c2a);
  padding: 2.5rem 2rem;
  margin-bottom: 2.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.content-section-home-a:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 72px rgba(0,0,0,0.5);
}

.content-section-home-b {
  background: linear-gradient(155deg, var(--ogp-surface-1c3d) 0%, rgba(124, 92, 255, 0.05) 100%);
}

.content-section-home-b:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: 0 28px 80px rgba(124, 92, 255, 0.25);
}

.content-section-home-c {
  background: linear-gradient(165deg, var(--ogp-surface-1c3d) 0%, rgba(34, 197, 94, 0.05) 100%);
}

.content-section-home-c:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 64px rgba(34, 197, 94, 0.2);
}

.content-section-home-d {
  background: linear-gradient(175deg, var(--ogp-surface-1c3d) 0%, rgba(255, 176, 32, 0.05) 100%);
}

.content-section-home-d:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 68px rgba(255, 176, 32, 0.2);
}

.intro-faq, .intro-about {
  background: var(--ogp-surface-2f91);
  border: 1px solid var(--ogp-border-6a0c);
  border-radius: var(--ogp-radius-8c2a);
  padding: 2.8rem 2.5rem;
  margin-bottom: 3rem;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 12px 48px rgba(0,0,0,0.35);
}

.mission-about, .values-about, .process-about, .tech-about {
  background: var(--ogp-surface-1c3d);
  border: 1px solid var(--ogp-border-6a0c);
  border-radius: var(--ogp-radius-8c2a);
  padding: 2.2rem 2rem;
  margin-bottom: 2.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.mission-about {
  background: linear-gradient(140deg, var(--ogp-surface-1c3d) 0%, rgba(124, 92, 255, 0.06) 100%);
}

.values-about {
  background: linear-gradient(150deg, var(--ogp-surface-1c3d) 0%, rgba(34, 197, 94, 0.06) 100%);
}

.process-about {
  background: linear-gradient(160deg, var(--ogp-surface-1c3d) 0%, rgba(255, 176, 32, 0.06) 100%);
}

.tech-about {
  background: linear-gradient(170deg, var(--ogp-surface-1c3d) 0%, rgba(124, 92, 255, 0.08) 100%);
}

.table-section-home, .table-section-faq, .table-section-about {
  margin: 3rem 0;
}

.tbl-home-1c4e, .tbl-faq-5a3c, .tbl-about-9c11 {
  width: 100%;
  border-collapse: collapse;
  background: var(--ogp-surface-1c3d);
  border-radius: var(--ogp-radius-8c2a);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  margin-top: 1.5rem;
}

.tbl-home-1c4e caption, .tbl-faq-5a3c caption, .tbl-about-9c11 caption {
  font-size: 1.2rem;
  font-weight: 600;
  padding: 1.2rem;
  background: var(--ogp-surface-2f91);
  color: var(--ogp-warm-9e31);
  text-align: left;
  border-bottom: 2px solid var(--ogp-border-6a0c);
}

.tbl-home-1c4e thead, .tbl-faq-5a3c thead, .tbl-about-9c11 thead {
  background: linear-gradient(135deg, var(--ogp-accent-7b2e) 0%, rgba(124, 92, 255, 0.7) 100%);
}

.tbl-home-1c4e th, .tbl-faq-5a3c th, .tbl-about-9c11 th {
  padding: 1rem 1.2rem;
  text-align: left;
  font-weight: 600;
  color: #ffffff;
  border-bottom: 2px solid var(--ogp-border-6a0c);
}

.tbl-home-1c4e td, .tbl-faq-5a3c td, .tbl-about-9c11 td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--ogp-border-6a0c);
  color: #d8d8d8;
}

.tbl-home-1c4e tbody tr:hover, .tbl-faq-5a3c tbody tr:hover, .tbl-about-9c11 tbody tr:hover {
  background: var(--ogp-surface-2f91);
  transition: background 0.3s ease;
}

.tbl-faq-5a3c thead {
  background: linear-gradient(140deg, var(--ogp-accent2-4d8a) 0%, rgba(34, 197, 94, 0.7) 100%);
}

.tbl-about-9c11 thead {
  background: linear-gradient(145deg, var(--ogp-warm-9e31) 0%, rgba(255, 176, 32, 0.7) 100%);
}

.accordion-section-faq {
  margin: 3rem 0;
}

.acc-faq-2d90 {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.acc-faq-2d90 details {
  background: var(--ogp-surface-1c3d);
  border: 1px solid var(--ogp-border-6a0c);
  border-radius: var(--ogp-radius-8c2a);
  padding: 1.5rem;
  transition: background 0.3s ease, transform 0.2s ease;
}

.acc-faq-2d90 details:hover {
  background: var(--ogp-surface-2f91);
  transform: translateX(4px);
}

.acc-faq-2d90 details[open] {
  background: linear-gradient(135deg, var(--ogp-surface-2f91) 0%, rgba(124, 92, 255, 0.08) 100%);
  border-color: var(--ogp-accent-7b2e);
}

.acc-faq-2d90 summary {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ogp-warm-9e31);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  transition: color 0.3s ease;
}

.acc-faq-2d90 summary::-webkit-details-marker {
  display: none;
}

.acc-faq-2d90 summary::before {
  content: '▶';
  display: inline-block;
  transition: transform 0.3s ease;
  color: var(--ogp-accent-7b2e);
}

.acc-faq-2d90 details[open] summary::before {
  transform: rotate(90deg);
}

.acc-faq-2d90 summary:hover {
  color: var(--ogp-accent-7b2e);
}

.acc-faq-2d90 summary:focus-visible {
  outline: 3px solid var(--ogp-accent2-4d8a);
  outline-offset: 4px;
  border-radius: 6px;
}

.acc-faq-2d90 details div {
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--ogp-border-6a0c);
  color: #d0d0d0;
  line-height: 1.8;
}

.links-section-home, .links-section-faq, .links-section-about {
  background: var(--ogp-surface-1c3d);
  border: 1px solid var(--ogp-border-6a0c);
  border-radius: var(--ogp-radius-8c2a);
  padding: 2.5rem 2rem;
  margin: 3rem 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.auth-links-home, .auth-links-faq, .auth-links-about {
  list-style: none;
  margin: 1.5rem 0 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-links-home li, .auth-links-faq li, .auth-links-about li {
  padding: 1rem 1.2rem;
  background: var(--ogp-surface-2f91);
  border-radius: 10px;
  border: 1px solid var(--ogp-border-6a0c);
  transition: background 0.3s ease, transform 0.2s ease;
}

.auth-links-home li:hover, .auth-links-faq li:hover, .auth-links-about li:hover {
  background: linear-gradient(135deg, var(--ogp-surface-2f91) 0%, rgba(124, 92, 255, 0.1) 100%);
  transform: translateX(6px);
}

.cta-section-home, .next-section-faq, .cta-about {
  background: linear-gradient(135deg, var(--ogp-surface-2f91) 0%, rgba(124, 92, 255, 0.1) 100%);
  border: 1px solid var(--ogp-accent-7b2e);
  border-radius: var(--ogp-radius-8c2a);
  padding: 2.5rem 2rem;
  margin: 3rem 0;
  text-align: center;
  box-shadow: 0 12px 48px rgba(124, 92, 255, 0.2);
}

.cta-section-home h2, .next-section-faq h2, .cta-about h2 {
  color: var(--ogp-warm-9e31);
  margin-bottom: 1.5rem;
}

.site-footer-home, .site-footer-faq, .site-footer-about {
  background: var(--ogp-surface-1c3d);
  border-top: 1px solid var(--ogp-border-6a0c);
  padding: 2rem 1.5rem;
  margin-top: auto;
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  color: #a0a0a0;
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  h2 {
    font-size: 1.6rem;
  }
  .header-container {
    flex-direction: column;
    align-items: flex-start;
  }
  .main-nav-home, .main-nav-faq, .main-nav-about {
    gap: 1rem;
  }
  .hero-home-6d8b {
    padding: 2rem 1.5rem;
  }
  .content-section-home-a, .content-section-home-b, .content-section-home-c, .content-section-home-d,
  .intro-faq, .intro-about, .mission-about, .values-about, .process-about, .tech-about {
    padding: 1.8rem 1.5rem;
  }
  .tbl-home-1c4e, .tbl-faq-5a3c, .tbl-about-9c11 {
    font-size: 0.9rem;
  }
  .tbl-home-1c4e th, .tbl-home-1c4e td,
  .tbl-faq-5a3c th, .tbl-faq-5a3c td,
  .tbl-about-9c11 th, .tbl-about-9c11 td {
    padding: 0.8rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }
  h2 {
    font-size: 1.4rem;
  }
  .site-branding {
    font-size: 1.5rem;
  }
  .nav-link {
    font-size: 0.95rem;
    padding: 0.4rem 0.8rem;
  }
  .tbl-home-1c4e, .tbl-faq-5a3c, .tbl-about-9c11 {
    display: block;
    overflow-x: auto;
  }
}

@media print {
  body {
    background: white;
    color: black;
  }
  .site-header-home, .site-header-faq, .site-header-about,
  .site-footer-home, .site-footer-faq, .site-footer-about,
  .crumb-faq-7c1f, .crumb-about-3e5b {
    display: none;
  }
  a {
    color: black;
    text-decoration: underline;
  }
  .hero-home-6d8b, .content-section-home-a, .content-section-home-b,
  .content-section-home-c, .content-section-home-d,
  .intro-faq, .intro-about, .mission-about, .values-about,
  .process-about, .tech-about {
    background: white;
    border: 1px solid #ccc;
    box-shadow: none;
  }
}