/* ============ 品牌宣传横幅 ============ */
.promo-band {
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px 40px 0;
}
.promo-frame {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 1983 / 793;
  background: var(--surface);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}
.promo-frame > a {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 2;
}
.promo-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 文字说明移到图片下方，不再覆盖 artwork */
.promo-cap {
  margin-top: 24px;
  padding: 28px 34px;
  font-family: var(--font-display);
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
}
.promo-cap h3 {
  font-size: clamp(18px, 2.6vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}
.promo-cap p {
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 10px;
  line-height: 1.7;
  max-width: 640px;
}
.promo-tag {
  font-size: 10px;
  letter-spacing: 3px;
  font-weight: 500;
  text-transform: uppercase;
  padding: 7px 13px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 100px;
  background: rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(8px);
  flex-shrink: 0;
  color: #fff;
}