/* 产品介绍页专用样式 */

/* 顶部 Hero（产品页） */
.product-hero-section { 
  position: relative; 
  margin-top: var(--header-height);
  height: 45vh;
  min-height: 360px;
  overflow: hidden;
}

.product-hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../images/banner/02.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.product-hero-overlay { 
  position: absolute; 
  inset: 0; 
  display: flex;
  align-items: center;
  pointer-events: none; 
  padding: 0 5%; 
  z-index: 2; 
}

.product-hero-content { 
  max-width: 1000px; 
  text-align: left; 
  width: 100%; 
  pointer-events: auto; 
}

.product-hero-title { 
  font-size: 2.4rem; 
  color: #fff; 
  text-shadow: 2px 2px 6px rgba(148, 142, 255, 0.5), 0 0 15px rgba(148, 142, 255, 0.3); 
  margin-bottom: 0.8rem; 
}

.product-hero-subtitle { 
  color: rgba(255,255,255,0.95); 
  margin-bottom: 1.2rem; 
  text-shadow: 2px 2px 6px rgba(148, 142, 255, 0.5), 0 0 15px rgba(148, 142, 255, 0.3);
}

/* 主体模块 */
.product-page { padding: 5rem 5%;margin-top: 0; }
.product-container { max-width: 1200px; margin: 0 auto; }
.product-hero { margin-top: 2rem; background: #fff; border-radius: 20px; padding: 2rem; box-shadow: 0 12px 32px rgba(148,142,255,0.2); }
.product-hero-header { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  gap: 1rem; 
  margin-bottom: 1.5rem;
}

.product-tabs { 
  display: flex; 
  gap: 0.6rem; 
  background: rgba(148,142,255,0.08); 
  padding: 6px; 
  border-radius: 999px; 
}

.product-tab { 
  appearance: none; 
  border: 0; 
  background: transparent; 
  color: var(--text-dark); 
  padding: 0.5rem 1rem; 
  border-radius: 999px; 
  cursor: pointer; 
  font-weight: 600; 
  transition: all 0.3s ease;
}

.product-tab:hover {
  background: rgba(148,142,255,0.15);
}

.product-tab.active { 
  background: var(--gradient-1); 
  color: #fff; 
}

.product-hero-header .section-title {
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
  position: relative;
  display: inline-block;
}

.product-hero-header .section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--gradient-1);
  border-radius: 2px;
}
.product-hero-body { margin-top: 1.5rem; }
.device-frame { display: none; }

/* 照片墙 swiper */
.product-gallery-swiper { 
  width: 100%; 
  height: 420px; 
  overflow: hidden;
}

.product-gallery-swiper .swiper-wrapper {
  display: flex;
  align-items: center;
}

.gallery-slide { 
  overflow: hidden; 
  border-radius: 14px; 
  /* box-shadow: 0 8px 24px rgba(0,0,0,0.15); */
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-slide img { 
  width: 100%; 
  height: 100%; 
  object-fit: contain; 
  display: block; 
}

/* coverflow: 使用 slidesPerView:auto 时需要固定 slide 宽度 */
.product-gallery-swiper .swiper-slide { 
  width: 400px; 
  flex-shrink: 0;
}

@media (max-width: 768px){
  .product-gallery-swiper { height: 360px; }
  .product-gallery-swiper .swiper-slide { width: 600px; }
}
/* 产品简介区域 */
.product-intro { 
  margin-top: 5rem; 
  padding: 4rem 3rem;
  background: linear-gradient(135deg, rgba(255,255,255,1) 0%, rgba(247,247,255,0.8) 100%);
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(148,142,255,0.18);
  position: relative;
  overflow: hidden;
}

.product-intro::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(148,142,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.product-intro .section-title {
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

.product-intro .section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--gradient-1);
  border-radius: 2px;
}

.intro-text { 
  color: var(--text-light); 
  line-height: 2.2;
  font-size: 1.15rem;
  width: 100%;
  max-width: 100%;
  position: relative;
  z-index: 1;
  letter-spacing: 0.3px;
}

/* 技术与数据安全保障区域 */
.product-assurance { 
  margin-top: 5rem;
  padding: 4rem 3rem;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(148,142,255,0.18);
  position: relative;
  overflow: hidden;
}

.product-assurance::before {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(111,106,255,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.product-assurance .section-title {
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 3rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.product-assurance .section-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: var(--gradient-1);
  border-radius: 2px;
}

.assurance-cards { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
  gap: 2rem; 
  margin-top: 3rem;
  position: relative;
  z-index: 1;
}

.assurance-card { 
  background: linear-gradient(135deg, #fff 0%, #fafaff 100%);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  box-shadow: 0 10px 30px rgba(148,142,255,0.18);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(148,142,255,0.1);
  position: relative;
  overflow: hidden;
}

.assurance-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.assurance-card:hover::before {
  transform: scaleX(1);
}

.assurance-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(148,142,255,0.3);
  border-color: rgba(148,142,255,0.3);
}

.assurance-card h4 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
  position: relative;
  padding-left: 2rem;
}

.assurance-card h4::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  background: var(--gradient-1);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
}

.assurance-card p {
  color: var(--text-light);
  line-height: 1.9;
  font-size: 1rem;
  margin-top: 0.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .device-frame { height: 360px; }
  
  .product-hero-header .section-title {
    font-size: 2rem;
  }
  
  .product-intro {
    margin-top: 3rem;
    padding: 2.5rem 1.5rem;
  }
  
  .product-intro .section-title {
    font-size: 2rem;
  }
  
  .intro-text {
    font-size: 1rem;
    line-height: 2;
  }
  
  .product-assurance {
    margin-top: 3rem;
    padding: 2.5rem 1.5rem;
  }
  
  .product-assurance .section-title {
    font-size: 2rem;
  }
  
  .assurance-cards {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
  }
  
  .assurance-card {
    padding: 2rem 1.5rem;
  }
  
  .assurance-card h4 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .product-hero-header .section-title {
    font-size: 1.75rem;
  }
  
  .product-intro {
    padding: 2rem 1.2rem;
  }
  
  .product-intro .section-title {
    font-size: 1.75rem;
  }
  
  .product-assurance {
    padding: 2rem 1.2rem;
  }
  
  .product-assurance .section-title {
    font-size: 1.75rem;
  }
  
  .assurance-card {
    padding: 1.5rem 1.2rem;
  }
}