* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html { background: #eceef2; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  min-height: 100vh;
  min-height: 100dvh;
  padding: calc(28px + env(safe-area-inset-top,0px)) 18px calc(24px + env(safe-area-inset-bottom,0px));
  color: #454a5c;
}

.bg-photo {
  position: fixed;
  inset: -20px;
  z-index: -2;
  background-image: url('bg_snow.jpg');
  background-size: cover;
  background-position: center;
  filter: blur(2px) brightness(1) contrast(1.02);
  transform: scale(1.1);
}
.bg-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: rgba(255,255,255,0.12);
}

.hero-title {
  font-family: 'Didot', 'Big Caslon', Georgia, 'Times New Roman', serif;
  font-size: 26px;
  letter-spacing: 0.5px;
  text-align: center;
  color: #4d4d55;
  margin-bottom: 20px;
}

.anniv-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 34px 20px;
  border-radius: 26px;
  background: rgba(255,255,255,0.45);
  backdrop-filter: blur(24px) saturate(1.7);
  -webkit-backdrop-filter: blur(24px) saturate(1.7);
  border: 1px solid rgba(255,255,255,0.5);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.6), 0 10px 35px rgba(0,0,0,0.07);
  text-decoration: none;
  color: inherit;
  margin-bottom: 16px;
}
.anniv-hero:active { transform: scale(0.98); }
.anniv-cn { font-size: 22px; font-weight: 600; color: #4d4d55; letter-spacing: 1px; }
.anniv-en { font-size: 10.5px; color: #9a97a3; letter-spacing: 3px; margin-top: 2px; }
.anniv-countdown { font-size: 11.5px; color: #a8a4b0; margin-top: 10px; }

.grid { display: grid; gap: 12px; margin-bottom: 12px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }

.tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 22px 10px;
  border-radius: 20px;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(160,170,205,0.2);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 10px rgba(80,90,130,0.05);
  transition: transform 0.12s;
}
.tile.small { padding: 16px 8px; }
.tile-active:active { transform: scale(0.96); }
.tile-soon { opacity: 0.55; }
.tile-icon { font-size: 22px; }
.tile-name { font-size: 13px; font-weight: 500; color: #565c74; }
.tile-sub { font-size: 10px; color: #9aa3c0; }