:root {
  --bg-top: #2f4cb7;
  --bg-mid: #1a2f87;
  --bg-bottom: #081544;
  --surface: rgba(113, 133, 255, 0.18);
  --surface-strong: rgba(129, 146, 255, 0.24);
  --text-main: #f3f6ff;
  --text-soft: rgba(243, 246, 255, 0.78);
  --text-muted: rgba(243, 246, 255, 0.54);
  --line: rgba(243, 246, 255, 0.14);
  --accent-coral: #ff6f88;
  --accent-cyan: #2ec7ff;
  --accent-violet: #8b74ff;
  --shadow: 0 22px 70px rgba(5, 10, 38, 0.55);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
}

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

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--text-main);
  background: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-mid) 38%, var(--bg-bottom) 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

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

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
  padding: 0 20px;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  background: rgba(10, 20, 70, 0.86);
}

.nav-back-custom,
.nav-btn-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--text-soft);
}

.nav-btn-custom {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  transition: border-color 0.22s, background 0.22s, color 0.22s;
}

.nav-btn-custom:hover,
.nav-back-custom:hover {
  color: #fff;
}

.nav-btn-custom:hover {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.12);
}

.hero {
  position: relative;
  padding: 90px 0 36px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 20% 0%, rgba(46, 199, 255, 0.22), transparent 48%),
    radial-gradient(circle at 84% 10%, rgba(255, 111, 136, 0.2), transparent 52%);
}

.hero-wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 34px;
  align-items: center;
}

.hero-copy {
  background: rgba(10, 24, 88, 0.38);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 30px;
  box-shadow: var(--shadow);
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #ffd8e0;
  border: 1px solid rgba(255, 111, 136, 0.32);
  background: rgba(255, 111, 136, 0.14);
}

.hero h1 {
  margin: 16px 0 10px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.05;
  letter-spacing: -1.2px;
}

.hero p {
  margin: 0 0 20px;
  font-size: 17px;
  line-height: 1.62;
  color: var(--text-soft);
}

.hero-bullets {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 9px;
  color: var(--text-soft);
  font-size: 15px;
}

.hero-actions {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: 999px;
  background: linear-gradient(135deg, #38d3ff, #7f86ff);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #081544;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(46, 199, 255, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(46, 199, 255, 0.42);
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.hero-orbit {
  position: absolute;
  inset: 0;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  background: #0b1c67;
  box-shadow: var(--shadow);
}

.hero-orbit img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.82;
}

.floating-card {
  position: absolute;
  background: rgba(11, 27, 88, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  padding: 10px 14px;
  backdrop-filter: blur(8px);
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 10px 30px rgba(6, 12, 44, 0.44);
  animation: floatCard 4.8s ease-in-out infinite;
}

.floating-card:nth-child(2) {
  top: 24px;
  left: 18px;
}

.floating-card:nth-child(3) {
  top: 68px;
  right: 14px;
  animation-delay: 0.9s;
}

.floating-card:nth-child(4) {
  bottom: 22px;
  left: 44px;
  animation-delay: 1.6s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.showcase {
  padding: 34px 0 20px;
}

.showcase-panel {
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: rgba(10, 20, 72, 0.42);
  padding: 18px;
  box-shadow: var(--shadow);
}

.showcase-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.showcase-tab {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-soft);
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.showcase-tab.active {
  color: #fff;
  border-color: rgba(46, 199, 255, 0.52);
  background: linear-gradient(135deg, rgba(46, 199, 255, 0.26), rgba(139, 116, 255, 0.2));
}

.showcase-content {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 18px;
}

.showcase-preview {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  min-height: 380px;
  background: rgba(255, 255, 255, 0.04);
}

.showcase-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.showcase-copy {
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  padding: 20px 22px;
}

.showcase-copy h3 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.8px;
}

.showcase-copy p {
  margin: 0 0 14px;
  color: var(--text-soft);
  line-height: 1.6;
}

.showcase-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.showcase-list li {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-soft);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
}

.artwall {
  padding: 32px 0 80px;
}

.artwall-title {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 34px);
}

.artwall-subtitle {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: 15px;
}

.artwall-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.artwall-card {
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  transition: transform 0.25s ease, border-color 0.25s ease;
  padding: 12px 12px 14px;
}

.artwall-card:hover {
  transform: translateY(-4px);
  border-color: rgba(46, 199, 255, 0.44);
}

.artwall-image-wrap {
  border-radius: 16px;
  overflow: hidden;
  background: rgba(7, 19, 69, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.artwall-card img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: contain;
}

.artwall-card h3 {
  margin: 12px 4px 2px;
  font-size: 17px;
  letter-spacing: -0.3px;
}

.footer {
  border-top: 1px solid var(--line);
  background: rgba(7, 13, 44, 0.72);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  min-height: 82px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.footer-logo img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.footer-links {
  display: inline-flex;
  gap: 18px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 12px;
}

.page-header {
  text-align: center;
  padding: 90px 0 36px;
}

.page-title {
  margin: 12px 0 10px;
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: -1px;
}

.page-subtitle {
  color: var(--text-soft);
}

.privacy-section {
  padding: 0 0 84px;
}

.privacy-card {
  background: rgba(10, 24, 88, 0.4);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: clamp(24px, 4vw, 56px);
  box-shadow: var(--shadow);
}

.privacy-card h2 {
  margin: 28px 0 10px;
  color: var(--accent-cyan);
}

.privacy-card h2:first-child {
  margin-top: 0;
}

.privacy-card p,
.privacy-card li {
  color: var(--text-soft);
  line-height: 1.72;
}

.privacy-card ul {
  margin: 0;
  padding-left: 20px;
}

.privacy-card a {
  color: #9de7ff;
}

@media (max-width: 980px) {
  .hero-wrap,
  .showcase-content {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 320px;
  }

  .showcase-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .artwall-image-wrap,
  .artwall-card img {
    min-height: 320px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(1120px, calc(100% - 28px));
  }

  .nav {
    padding: 0 12px;
  }

  .hero-copy {
    padding: 22px 18px;
  }

  .hero p {
    font-size: 15px;
  }

  .showcase-panel {
    padding: 12px;
  }

  .showcase-copy h3 {
    font-size: 24px;
  }

  .artwall-grid {
    grid-template-columns: 1fr;
  }

  .artwall-image-wrap,
  .artwall-card img {
    min-height: 300px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 0;
  }
}