/*
 * 文件: css/home/home-demo.css
 * 引用: index.html
 * 区块: .home-demo — 智能控制在线演示预览
 */

.home-demo {
  padding: 80px 0 88px;
  background: linear-gradient(180deg, #e8eff7 0%, #f0f4f8 100%);
  position: relative;
  overflow: hidden;
}

.home-demo::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(29, 81, 152, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 20% 100%, rgba(252, 107, 0, 0.04) 0%, transparent 60%);
}

.home-demo .container {
  position: relative;
  z-index: 1;
}

/* 头部 */
.home-demo__head {
  text-align: center;
  margin-bottom: 48px;
}

.home-demo__head h2 {
  margin: 0 0 8px;
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 700;
  color: #1a2a3a;
  letter-spacing: 0.02em;
}

.home-demo__head p {
  margin: 0;
  font-size: 15px;
  color: rgba(26, 42, 58, 0.6);
  line-height: 1.7;
}

.home-demo__head .head-line {
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, #1D5198, #FC6B00);
  margin: 16px auto 0;
  border-radius: 2px;
}

/* 统计卡片网格 */
.home-demo__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.home-demo-stat {
  background: #fff;
  border: 1px solid rgba(29, 81, 152, 0.1);
  border-radius: 16px;
  padding: 24px;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(28px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.home-demo-stat.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.home-demo-stat:hover {
  background: #fff;
  border-color: rgba(29, 81, 152, 0.25);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(29, 81, 152, 0.1);
}

.home-demo-stat__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}

.home-demo-stat__icon--blue {
  background: rgba(0, 212, 255, 0.12);
  color: #00d4ff;
}

.home-demo-stat__icon--green {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
}

.home-demo-stat__icon--yellow {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
}

.home-demo-stat__icon--red {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
}

.home-demo-stat__value {
  font-size: 1.7rem;
  font-weight: 700;
  color: #1a2a3a;
  margin-bottom: 4px;
  line-height: 1.2;
}

.home-demo-stat__label {
  font-size: 0.82rem;
  color: rgba(26, 42, 58, 0.55);
  line-height: 1.5;
}

/* 快捷控制区域 */
.home-demo__controls-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #1a2a3a;
}

.home-demo__controls-title::before {
  content: '';
  width: 4px;
  height: 18px;
  background: linear-gradient(180deg, #00d4ff, #1D5198);
  border-radius: 2px;
}

.home-demo__controls {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.home-demo-device {
  background: #fff;
  border: 1px solid rgba(29, 81, 152, 0.1);
  border-radius: 14px;
  padding: 20px 16px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(28px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.home-demo-device.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.home-demo-device::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--demo-accent, #1D5198);
  opacity: 0;
  transition: opacity 0.3s;
}

.home-demo-device:hover::before {
  opacity: 1;
}

.home-demo-device:hover {
  background: #fff;
  transform: translateY(-3px);
  border-color: rgba(29, 81, 152, 0.2);
  box-shadow: 0 8px 24px rgba(29, 81, 152, 0.1);
}

.home-demo-device__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin: 0 auto 10px;
}

.home-demo-device__name {
  font-weight: 600;
  font-size: 0.9rem;
  color: #1a2a3a;
  margin-bottom: 4px;
}

.home-demo-device__status {
  font-size: 0.78rem;
  color: rgba(26, 42, 58, 0.5);
}

/* CTA */
.home-demo__cta {
  text-align: center;
}

.home-demo__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1D5198, #0e3a73);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.home-demo__btn:hover {
  background: linear-gradient(135deg, #FC6B00, #e55f00);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(252, 107, 0, 0.25);
}

/* 响应式 */
@media (max-width: 992px) {
  .home-demo {
    padding: 64px 0 72px;
  }

  .home-demo__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .home-demo__controls {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .home-demo-stat {
    padding: 20px;
  }
}

@media (max-width: 576px) {
  .home-demo__stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .home-demo__controls {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .home-demo-stat__value {
    font-size: 1.4rem;
  }

  .home-demo-device {
    padding: 16px 12px;
  }
}

/* 减少动效 */
@media (prefers-reduced-motion: reduce) {
  .home-demo-stat,
  .home-demo-device {
    opacity: 1;
    transform: none;
    transition: background 0.2s, border-color 0.2s;
  }
}