/* 一分钟宣传片：不加标题，片头在首屏底部露出；沿用首页 1120px 内容轴线。 */
.section.film {
  position: relative;
  z-index: 2;
  margin-top: -24px;
  padding-top: 0;
  padding-bottom: 32px;
}

.film__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  background: #f4f1ed;
  box-shadow: 0 36px 70px -44px rgba(60, 40, 30, 0.45);
}

.film__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.film__sound {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-pill);
  background: rgba(36, 38, 34, 0.72);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: background 0.2s ease;
}

.film__sound:hover {
  background: var(--color-brand);
}

.film__sound:focus-visible {
  outline: 3px solid rgba(180, 39, 45, 0.35);
  outline-offset: 3px;
}

.film__sound .film__sound-on,
.film__sound[aria-pressed='true'] .film__sound-off {
  display: none;
}

.film__sound[aria-pressed='true'] .film__sound-on {
  display: inline;
}

.film + .section {
  padding-top: 48px;
}

@media (max-width: 768px) {
  .section.film {
    margin-top: -12px;
  }

  .film__frame {
    border-radius: var(--radius-lg);
  }

  .film__sound {
    right: 12px;
    bottom: 12px;
    padding: 7px 12px 7px 10px;
    font-size: 13px;
  }
}