:root {
  --bg: #f5f7ff;
  --text: #1f2937;
  --muted: #4b5563;
  --card: #ffffff;
  --border: #e5e7eb;
  --grain: #2563eb;
  --neural: #059669;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, #dbeafe 0%, transparent 40%),
    radial-gradient(circle at 85% 15%, #ccfbf1 0%, transparent 42%),
    var(--bg);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

.topbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #ffffffd9;
  color: var(--text);
  padding: 7px 12px;
  font-size: 0.9rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 16px rgba(31, 41, 55, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lang-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 22px rgba(31, 41, 55, 0.12);
}

.lang-icon {
  font-size: 1rem;
}

.lang-label {
  min-width: 1.8em;
  text-align: center;
  font-weight: 700;
}

.hero {
  text-align: center;
  margin-bottom: 36px;
}

.kicker {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

h1 {
  margin: 10px 0 6px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.subtitle {
  color: var(--muted);
  margin: 0 auto 22px;
  max-width: 680px;
}

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

.card {
  text-align: left;
  text-decoration: none;
  color: inherit;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  box-shadow: 0 12px 24px rgba(31, 41, 55, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 30px rgba(31, 41, 55, 0.12);
}

.card h2 {
  margin: 0 0 8px;
}

.card p {
  margin: 0 0 12px;
  color: var(--muted);
  min-height: 48px;
}

.card span {
  font-weight: 600;
}

.card.grain span {
  color: var(--grain);
}

.card.neuralnote span {
  color: var(--neural);
}

.gallery h3 {
  margin: 8px 0 14px;
  font-size: 1.35rem;
}

.photos {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.photos img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 14px;
  border: 1px solid var(--border);
}

@media (max-width: 820px) {
  .cta-grid,
  .photos {
    grid-template-columns: 1fr;
  }

  .card p {
    min-height: 0;
  }
}

@media (max-width: 560px) {
  .page {
    padding-top: 16px;
  }

  .topbar {
    margin-bottom: 8px;
  }

  .lang-toggle {
    padding: 7px 10px;
  }
}