/* 首页专属样式（page-home.css）—— 站点级共享样式见 base.css */

.hero {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2.25rem, 5vw, 3.5rem);
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
}

.hero__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.hero__title {
  margin: 0 0 1.1rem;
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  font-weight: 700;
  letter-spacing: -.02em;
}

.hero__num {
  white-space: nowrap;
  box-shadow: inset 0 -.28em 0 rgba(224, 67, 28, .18);
}

.hero__lead {
  margin: 0 0 1.6rem;
  max-width: 46ch;
  color: var(--ink-2);
  font-size: 1.05rem;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; }

.hero__notes {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.4rem;
  margin: 1.8rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
  font-size: .88rem;
  color: var(--muted);
}
.hero__notes li { display: flex; align-items: center; gap: .45rem; }
.hero__notes li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  flex: none;
}

.hero__media img { display: block; width: 100%; border: 1px solid var(--line-strong); border-radius: var(--radius); }

@media (min-width: 900px) {
  .hero__inner { grid-template-columns: 1.05fr .95fr; }
}

/* 能力概览条压在首屏下沿 */
.capability-strip { margin-top: clamp(2rem, 5vw, 3rem); }

/* 业务方向卡片 */
.scope-card__tag {
  align-self: flex-start;
  padding: .2rem .55rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--muted);
}

/* 首页新闻预览 */
.news-preview { display: grid; gap: 0; }
.news-preview .post:first-child { border-top: 1px solid var(--line); }

/* 服务承诺条 */
.assure {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem 2.5rem;
}
.assure__item h3 { margin: 0 0 .4rem; font-size: 1.02rem; }
.assure__item p { margin: 0; color: var(--muted); font-size: .93rem; }

/* ---------- 首页视频 banner 区（15 秒车间影像） ---------- */
.banner-video { padding: clamp(2.5rem, 6vw, 4rem) 0 0; }

.banner-video__head { margin-bottom: clamp(1.25rem, 3vw, 1.75rem); }

.banner-video__frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
  max-height: 620px;
}

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

.banner-video__cover {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(23, 25, 28, .2) 0%, rgba(23, 25, 28, .58) 100%);
  transition: opacity .25s ease;
}

.banner-video__play {
  display: none;
  align-items: center;
  gap: .7rem;
  padding: .85rem 1.55rem;
  border: 1px solid #fff;
  border-radius: 999px;
  background: rgba(255, 255, 255, .93);
  color: var(--ink);
  font-family: inherit;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .16s ease;
}
.banner-video__play:hover { background: #fff; }
.banner-video__play svg { width: 18px; height: 18px; fill: currentColor; flex: none; }
.banner-video__frame.is-ready .banner-video__play { display: inline-flex; }
.banner-video__frame.is-playing .banner-video__cover { opacity: 0; pointer-events: none; }

.banner-video__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: .6rem 1.1rem;
  background: rgba(23, 25, 28, .74);
  color: #fff;
  font-size: .82rem;
  letter-spacing: .06em;
}
.banner-video__frame.is-playing .banner-video__caption { display: none; }

.banner-video__meta { margin: 1rem 0 0; color: var(--muted); font-size: .88rem; }