/* AI机器人专业建设案例样式 */

/* Hero */
.case-hero { padding: 90px 0 30px; text-align: center; }
.case-hero-inner { text-align: center; }
.case-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 3px;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.case-hero h1 {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 10px;
}
.case-hero p { font-size: 15px; color: var(--text-2); margin-bottom: 20px; }
.case-hero-stats { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; }
.case-hero-stats div { text-align: center; }
.case-hero-stats b {
  display: block;
  font-size: 26px;
  font-weight: 800;
  background: linear-gradient(120deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.case-hero-stats span { font-size: 12px; color: var(--text-3); }

/* 方案区块 */
.pd-section { padding: 14px 0; }
.pd-section.alt { background: rgba(255, 255, 255, 0.02); }

/* 方案标题 */
.pd-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.pd-num {
  font-size: 22px;
  font-weight: 900;
  background: linear-gradient(120deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.pd-title h2 {
  font-size: 20px;
  font-weight: 800;
}

/* 图片展示 */
.pd-imgs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  max-width: 760px;
  margin: 0 auto 8px;
}
.pd-img-box {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.35);
}
.pd-img-box img {
  width: 100%;
  height: 240px;
  object-fit: contain;
  display: block;
}
.pd-img-label {
  padding: 6px 10px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  text-align: center;
  margin: 0;
}

/* 课程内容（在图片下方） */
.pd-course {
  max-width: 760px;
  margin: 6px auto 0;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.pd-course h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.pd-course-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
  margin: 0;
}

/* 单图展示 */
.pd-imgs.single {
  grid-template-columns: 1fr;
  max-width: 500px;
}

/* 仓库物流场景适配（竖图填充） */
.pd-img-box.cover img {
  object-fit: cover;
  object-position: center;
}

/* CTA */
.case-cta { padding: 40px 0; text-align: center; }
.case-cta-inner { text-align: center; }
.case-cta h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; margin-bottom: 10px; }
.case-cta p { font-size: 14px; color: var(--text-2); margin-bottom: 20px; }

/* 响应式 */
@media (max-width: 600px) {
  .pd-imgs { grid-template-columns: 1fr; }
  .pd-img-box img { height: 260px; }
  .case-hero-stats { gap: 16px; }
  .pd-title { flex-direction: column; gap: 6px; align-items: flex-start; }
}