/* ==========================================
   益阳市弘源生物科技有限公司 官网
   首页自然有机主义风格样式
   ========================================== */

/* ========== 首屏：四季农田轮播 ========== */

.organic-hero {
  --hero-theme: linear-gradient(135deg, #DCFCE7 0%, #86EFAC 55%, #0EA5E9 100%);
  position: relative;
  padding: calc(var(--spacing-3xl) + 48px) 0 var(--spacing-3xl);
  background: var(--hero-theme);
  overflow: hidden;
}

.organic-hero::before,
.organic-hero::after {
  content: '';
  position: absolute;
  pointer-events: none;
}

.organic-hero::before {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.45) 0%, rgba(255, 255, 255, 0) 70%);
  top: -160px;
  right: -120px;
  filter: blur(6px);
}

.organic-hero::after {
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.4) 0%, rgba(34, 197, 94, 0) 70%);
  bottom: -120px;
  left: -80px;
  opacity: 0.7;
}

.hero-grid {
  display: grid;
  gap: var(--spacing-3xl);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--color-primary-dark);
  max-width: 560px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-full);
  background: rgba(255, 255, 255, 0.65);
  color: var(--color-secondary);
  font-size: var(--font-size-sm);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
  box-shadow: 0 10px 24px rgba(34, 197, 94, 0.18);
}

.hero-content h1 {
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.15;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-subtle);
  margin-bottom: var(--spacing-xl);
}

.hero-statistics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.hero-stat {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-md);
  box-shadow: 0 16px 32px rgba(15, 94, 52, 0.18);
  text-align: center;
}

.hero-stat strong {
  display: block;
  font-size: var(--font-size-4xl);
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-xs);
}

.hero-stat span {
  font-size: var(--font-size-sm);
  color: var(--color-secondary-dark);
  letter-spacing: 1px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.hero-buttons .btn {
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: var(--font-size-lg);
  box-shadow: 0 18px 36px rgba(34, 197, 94, 0.25);
}

.hero-buttons .btn.btn-outline {
  border-width: 2px;
  box-shadow: 0 14px 28px rgba(14, 165, 233, 0.18);
}

.hero-visual {
  position: relative;
  z-index: 1;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(15, 94, 52, 0.28);
}

.season-slider {
  position: relative;
  width: 100%;
  height: 460px;
}

.season-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(0.96) translateY(12px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  border-radius: 28px;
  overflow: hidden;
}

.season-slide.active {
  opacity: 1;
  transform: scale(1) translateY(0);
  z-index: 2;
}

.season-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.season-caption {
  position: absolute;
  inset: auto var(--spacing-lg) var(--spacing-lg);
  background: rgba(15, 76, 50, 0.75);
  color: var(--color-text-light);
  padding: var(--spacing-lg);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  box-shadow: 0 16px 32px rgba(15, 76, 50, 0.3);
}

.season-caption h3 {
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-2xl);
  color: var(--color-text-light);
}

.season-caption p {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  color: rgba(255, 255, 255, 0.85);
}

.season-selector {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-full);
  box-shadow: 0 18px 40px rgba(15, 94, 52, 0.2);
}

.season-control {
  border: none;
  background: transparent;
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.season-control:hover,
.season-control:focus {
  background: rgba(34, 197, 94, 0.16);
  outline: none;
}

.season-control.active {
  background: rgba(14, 165, 233, 0.18);
  color: var(--color-tertiary-dark);
  box-shadow: 0 12px 24px rgba(14, 165, 233, 0.2);
}

.hero-bottom-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 120px;
  background: url('../images/aux_modern_farm_02.jpg');
  background-size: cover;
  opacity: 0.15;
}

/* ========== 产品生态圈 ========== */

.product-ecosystem {
  position: relative;
}

.product-ecosystem .ecosystem-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: var(--spacing-2xl);
  align-items: stretch;
}

.ecosystem-core {
  background: linear-gradient(145deg, rgba(34, 197, 94, 0.16), rgba(14, 165, 233, 0.12));
  border-radius: 28px;
  padding: var(--spacing-2xl);
  box-shadow: 0 24px 48px rgba(15, 94, 52, 0.18);
  position: relative;
  overflow: hidden;
}

.ecosystem-core::after {
  content: '';
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.25), transparent 70%);
}

.ecosystem-core h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-primary-dark);
}

.ecosystem-core p {
  color: var(--color-subtle);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

.ecosystem-core ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--spacing-sm);
}

.ecosystem-core li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-primary-dark);
  font-size: var(--font-size-sm);
}

.ecosystem-core li::before {
  content: '•';
  color: var(--color-tertiary-dark);
  font-size: var(--font-size-xl);
}

.ecosystem-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.ecosystem-node {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 24px;
  padding: var(--spacing-xl) var(--spacing-lg);
  box-shadow: 0 18px 36px rgba(15, 94, 52, 0.14);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.ecosystem-node:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 48px rgba(14, 165, 233, 0.18);
}

.ecosystem-node img {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 12px 24px rgba(15, 94, 52, 0.18);
}

.ecosystem-node h4 {
  margin: 0;
  font-size: var(--font-size-2xl);
  color: var(--color-secondary);
}

.ecosystem-node p {
  color: var(--color-subtle);
  line-height: var(--line-height-relaxed);
  flex: 1;
}

.ecosystem-link {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-tertiary-dark);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
}

.ecosystem-link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.ecosystem-link:hover::after {
  transform: translateX(4px);
}

/* ========== 绿色认证墙 ========== */

.certification-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.cert-card {
  position: relative;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24px;
  padding: var(--spacing-xl);
  box-shadow: 0 18px 36px rgba(15, 94, 52, 0.12);
  border: 1px solid rgba(14, 165, 233, 0.08);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 52px rgba(34, 197, 94, 0.18);
}

.cert-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: rgba(34, 197, 94, 0.2);
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
}

.cert-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-xl);
  color: var(--color-primary-dark);
}

.cert-card p {
  color: var(--color-subtle);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
}

.cert-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-full);
  background: rgba(14, 165, 233, 0.12);
  color: var(--color-tertiary-dark);
  font-size: var(--font-size-xs);
  letter-spacing: 1px;
}

/* ========== 农户故事 ========== */

.farmer-stories {
  position: relative;
}

.stories-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.story-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 18px 36px rgba(15, 94, 52, 0.14);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.story-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 56px rgba(14, 165, 233, 0.18);
}

.story-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.story-content {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.story-content h3 {
  margin: 0;
  font-size: var(--font-size-xl);
  color: var(--color-secondary);
}

.story-content p {
  color: var(--color-subtle);
  line-height: var(--line-height-relaxed);
  flex: 1;
}

.story-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-primary-dark);
}

.story-meta span {
  background: rgba(34, 197, 94, 0.12);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
}

.stories-cta {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  align-items: center;
}

/* ========== 洞察速览 ========== */

.insights-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr) minmax(0, 0.8fr);
  gap: var(--spacing-lg);
  align-items: stretch;
}

.insight-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24px;
  padding: var(--spacing-xl);
  box-shadow: 0 16px 34px rgba(15, 94, 52, 0.12);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.insight-card.highlight {
  background: linear-gradient(150deg, rgba(14, 165, 233, 0.16), rgba(34, 197, 94, 0.12));
}

.insight-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-tertiary-dark);
  background: rgba(14, 165, 233, 0.18);
}

.insight-tag.accent {
  background: rgba(250, 204, 21, 0.25);
  color: var(--color-secondary);
}

.insight-card h3 {
  margin: 0;
  font-size: var(--font-size-2xl);
  color: var(--color-primary-dark);
}

.insight-card p {
  color: var(--color-subtle);
  line-height: var(--line-height-relaxed);
  flex: 1;
}

.insight-link {
  align-self: flex-start;
  color: var(--color-tertiary-dark);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
}

.insight-list {
  display: grid;
  gap: var(--spacing-md);
}

.insight-item {
  display: grid;
  gap: var(--spacing-xs);
  background: rgba(255, 255, 255, 0.9);
  padding: var(--spacing-lg);
  border-radius: 20px;
  box-shadow: 0 14px 28px rgba(15, 94, 52, 0.1);
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.insight-item:hover {
  transform: translateX(6px);
  box-shadow: 0 24px 40px rgba(14, 165, 233, 0.16);
}

.insight-item h3 {
  font-size: var(--font-size-lg);
  color: var(--color-primary-dark);
  margin: 0;
}

.insight-item time {
  font-size: var(--font-size-xs);
  color: var(--color-subtle);
}

.insight-side {
  background: rgba(15, 94, 52, 0.88);
  color: var(--color-text-light);
  border-radius: 24px;
  padding: var(--spacing-xl);
  box-shadow: 0 22px 44px rgba(15, 94, 52, 0.24);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.insight-side h3 {
  margin: 0;
  font-size: var(--font-size-xl);
}

.insight-side ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--spacing-sm);
}

.insight-side li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: var(--font-size-sm);
}

.insight-side li span {
  color: rgba(255, 255, 255, 0.75);
}

.insight-side li strong {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
}

.insight-side .insight-link {
  color: rgba(255, 255, 255, 0.88);
}

/* ========== CTA ========== */

.contact-cta {
  position: relative;
  overflow: hidden;
}

.contact-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(250, 204, 21, 0.18), transparent 60%),
              radial-gradient(circle at 80% 80%, rgba(14, 165, 233, 0.2), transparent 65%);
  opacity: 0.9;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  display: grid;
  gap: var(--spacing-xl);
}

.cta-content h2 {
  color: var(--color-text-light);
}

.cta-content p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-lg);
}

.cta-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.cta-actions .btn {
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

/* ========== 响应式调整 ========== */

@media (max-width: 1200px) {
  .hero-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }

  .hero-visual {
    order: -1;
  }

  .ecosystem-grid {
    grid-template-columns: 1fr;
  }

  .insights-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .insight-side {
    order: 3;
  }
}

@media (max-width: 1024px) {
  .hero-statistics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .certification-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stories-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .organic-hero {
    padding: var(--spacing-3xl) 0;
  }

  .hero-statistics {
    grid-template-columns: 1fr;
  }

  .season-slider {
    height: 360px;
  }

  .season-selector {
    bottom: var(--spacing-md);
    flex-wrap: wrap;
  }

  .ecosystem-cards {
    grid-template-columns: 1fr;
  }

  .certification-grid {
    grid-template-columns: 1fr;
  }

  .stories-grid {
    grid-template-columns: 1fr;
  }

  .insights-grid {
    grid-template-columns: 1fr;
  }

  .insight-card,
  .insight-item,
  .insight-side {
    padding: var(--spacing-lg);
  }

  .cta-content {
    text-align: left;
  }

  .cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
  }

  .season-selector {
    position: static;
    transform: none;
    margin: var(--spacing-md) auto 0;
    justify-content: center;
  }

  .season-control {
    padding: var(--spacing-xs) var(--spacing-md);
  }

  .hero-buttons .btn {
    width: 100%;
    text-align: center;
  }

  .stories-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
}