/* ============================================
   首页样式
   ============================================ */

/* ---- Hero 轮播 ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero__carousel {
  position: absolute;
  inset: 0;
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero__slide--active {
  opacity: 1;
}

.hero__slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.hero__slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6,24,66,0.85) 0%, rgba(10,36,99,0.7) 50%, rgba(30,58,123,0.6) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: var(--space-32) 0;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(var(--color-accent-rgb), 0.15);
  border: 1px solid rgba(var(--color-accent-rgb), 0.3);
  border-radius: var(--radius-full);
  color: var(--color-accent-light);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-size: var(--text-7xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.hero__title span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: var(--text-xl);
  color: var(--color-gray-300);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-10);
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* 轮播指示器 */
.hero__indicators {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-3);
  z-index: 3;
}

.hero__indicator {
  width: 40px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  padding: 0;
}

.hero__indicator--active {
  background: var(--color-accent-light);
  width: 60px;
}

/* 装饰粒子 */
.hero__particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero__particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(var(--color-accent-rgb), 0.3);
  animation: float-particle 8s infinite ease-in-out;
}

@keyframes float-particle {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.3; }
  25% { transform: translateY(-30px) translateX(15px); opacity: 0.6; }
  50% { transform: translateY(-60px) translateX(-10px); opacity: 0.3; }
  75% { transform: translateY(-30px) translateX(20px); opacity: 0.5; }
}

/* ---- 企业简介速览 ---- */
.intro__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.intro__item {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  border-radius: var(--radius-xl);
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
}

.intro__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: transparent;
}

.intro__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
  background: linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.1), rgba(var(--color-accent-rgb), 0.03));
  color: var(--color-accent);
}

.intro__icon svg {
  width: 32px;
  height: 32px;
}

.intro__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.intro__desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: var(--leading-relaxed);
}

/* ---- 产品矩阵 ---- */
.products-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-10);
}

.products-section__more {
  font-size: var(--text-sm);
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  text-decoration: none;
  transition: gap var(--transition-fast);
}

.products-section__more:hover {
  gap: var(--space-2);
}

.products-category {
  margin-bottom: var(--space-12);
}

.products-category__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.products-category__title::before {
  content: '';
  width: 4px;
  height: 28px;
  border-radius: 2px;
  background: var(--gradient-accent);
}

.products-category__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* ---- 产业服务 ---- */
.services-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.service-flow__item {
  position: relative;
  padding: var(--space-8);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.service-flow__item:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-4px);
}

.service-flow__num {
  font-family: var(--font-en);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: rgba(var(--color-accent-rgb), 0.15);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.service-flow__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.service-flow__desc {
  font-size: var(--text-sm);
  color: var(--color-gray-300);
  line-height: var(--leading-relaxed);
}

.service-flow__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.service-flow__tag {
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(var(--color-accent-rgb), 0.15);
  color: var(--color-accent-light);
}

/* ---- 案例缩略 ---- */
.cases-preview__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.case-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

.case-card__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.case-card__body {
  padding: var(--space-6);
}

.case-card__client {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-2);
}

.case-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.case-card__desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: var(--leading-relaxed);
}

/* ---- 企业优势 ---- */
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.advantage-item {
  text-align: center;
  padding: var(--space-8) var(--space-5);
}

.advantage-item__icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  box-shadow: 0 8px 24px rgba(var(--color-primary-rgb), 0.3);
}

.advantage-item__icon svg {
  width: 32px;
  height: 32px;
}

.advantage-item__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.advantage-item__desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: var(--leading-relaxed);
}

/* ---- CTA ---- */
.cta {
  background: var(--gradient-hero);
  padding: var(--space-20) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(var(--color-accent-rgb), 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.cta__title {
  font-size: var(--text-4xl);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  position: relative;
}

.cta__desc {
  font-size: var(--text-lg);
  color: var(--color-gray-300);
  margin-bottom: var(--space-10);
  position: relative;
}

.cta__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  position: relative;
}

/* ---- 统计数字条 ---- */
.stats-bar {
  background: var(--color-primary);
  padding: var(--space-12) 0;
}

.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

/* ---- 响应式 ---- */
@media (max-width: 1199px) {
  .hero__title { font-size: var(--text-5xl); }
  .intro__grid { grid-template-columns: repeat(2, 1fr); }
  .products-category__grid { grid-template-columns: repeat(2, 1fr); }
  .services-flow { grid-template-columns: repeat(2, 1fr); }
  .advantages__grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .hero { min-height: auto; padding: 120px 0 80px; }
  .hero__title { font-size: var(--text-3xl); }
  .hero__desc { font-size: var(--text-base); }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .intro__grid { grid-template-columns: 1fr; }
  .products-category__grid { grid-template-columns: 1fr; }
  .services-flow { grid-template-columns: 1fr; }
  .cases-preview__grid { grid-template-columns: 1fr; }
  .advantages__grid { grid-template-columns: 1fr; }
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
  .cta__title { font-size: var(--text-2xl); }
}