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

html, body { height: 100%; }

body {
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #0a0616;
  color: #fff;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 180px 20px 40px;
}

.notice {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1180px;
  margin-bottom: 16px;
  text-align: center;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: 2px;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.notice-sub {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 18px;
  width: 100%;
  max-width: 1180px;
  margin-bottom: 28px;
  text-align: center;
  font-size: 18px;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.75);
}

.notice-sub::before,
.notice-sub::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.35);
}

.notice-sub a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.notice-sub a:hover {
  color: #fff;
  text-decoration: underline;
}

@media (max-width: 768px) {
  .notice { font-size: 22px; margin-bottom: 12px; }
  .notice-sub { font-size: 12px; gap: 10px; margin-bottom: 20px; }
}

#sakura {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  background: #0a0616;
}

.wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1180px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(360px, 400px);
  gap: 32px;
  align-items: stretch;
}

.stage {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  background: rgba(22, 16, 38, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

.stage img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  opacity: 0;
  transition: opacity .9s ease;
}

.stage img.on { opacity: 1; }

.dots {
  position: absolute;
  bottom: 16px;
  left: 0;
  right: 0;
  display: flex;
  gap: 8px;
  justify-content: center;
  z-index: 2;
}

.dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: .3s;
}

.dots span.on { background: #fff; width: 22px; border-radius: 4px; }

.card {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 48px 40px 40px;
  text-align: center;
  background: rgba(22, 16, 38, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

.card h1 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #ffd7ef, #ffb3d9 45%, #c9b6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.card .sub {
  margin-top: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

.card .intro {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.9;
  text-align: left;
}

.dllist {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn {
  display: block;
  padding: 12px 20px;
  border-radius: 11px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, #ff79b0, #c86bff);
  box-shadow: 0 8px 22px rgba(200, 107, 255, 0.28);
  transition: transform .16s ease, box-shadow .16s ease, opacity .16s ease;
}

.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(200, 107, 255, 0.42); }

.btn:active { transform: translateY(0); }

.btn.alt {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: none;
  color: rgba(255, 255, 255, 0.85);
}

.btn.alt:hover { background: rgba(255, 255, 255, 0.14); box-shadow: none; }

@media (max-width: 900px) {
  .wrap {
    grid-template-columns: 1fr;
    max-width: 480px;
    gap: 22px;
  }
}

@media (max-width: 480px) {
  .card { padding: 36px 26px 30px; }
  .card h1 { font-size: 28px; }
}