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

/* Banner */
.banner {
  position: relative;
  height: 520px;
  background: linear-gradient(135deg, #003d7a 0%, #0056ae 50%, #1e88e5 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.banner-bg {
  position: absolute;
  inset: 0;
  background-image: url("../images/banner.svg");
  background-size: cover;
  background-position: center;
  opacity: 0.85;
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(0, 45, 95, 0.7) 0%,
    rgba(0, 86, 174, 0.4) 60%,
    rgba(0, 86, 174, 0.1) 100%
  );
}

.banner-content {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 640px;
}

.banner-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  font-size: 12px;
  letter-spacing: 3px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.banner-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.banner-title span {
  display: block;
  font-size: 22px;
  font-weight: 300;
  letter-spacing: 8px;
  opacity: 0.9;
  margin-top: 8px;
}

.banner-subtitle {
  font-size: 16px;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 520px;
}

.banner-actions {
  display: flex;
  gap: 14px;
}

.banner-actions .btn {
  padding: 12px 32px;
  font-size: 15px;
}

.btn-white {
  background: #fff;
  color: var(--color-primary);
}
.btn-white:hover {
  background: var(--color-bg-soft);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: #fff;
}

/* 简介区 */
.intro-section {
  padding: 80px 0 60px;
  text-align: center;
}

.intro-title {
  font-size: 36px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 28px;
  letter-spacing: 2px;
}

.intro-title span {
  color: var(--color-primary);
  font-weight: 700;
}

.intro-desc {
  font-size: 16px;
  color: var(--color-text-soft);
  line-height: 2;
  max-width: 880px;
  margin: 0 auto 48px;
}

.intro-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.intro-feature {
  text-align: center;
  padding: 32px 16px;
  transition: all var(--transition);
}

.intro-feature:hover {
  transform: translateY(-4px);
}

.intro-feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  box-shadow: 0 8px 20px rgba(0, 86, 174, 0.2);
}

.intro-feature h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.intro-feature p {
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.7;
}

/* 业务范围 */
.business-section {
  background: var(--color-bg-soft);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.business-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.business-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.business-card-pic {
  background: var(--color-bg-dark);
  overflow: hidden;
  position: relative;
}

.business-card-pic img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.business-card:hover .business-card-pic img {
  transform: scale(1.06);
}

.business-card-body {
  padding: 28px 24px;
}

.business-card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.business-card-title::before {
  content: "";
  width: 4px;
  height: 18px;
  background: var(--color-primary);
  border-radius: 2px;
}

.business-card-subtitle {
  font-size: 12px;
  color: var(--color-primary);
  letter-spacing: 2px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.business-card-text {
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 18px;
}

.business-card-link {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}

.business-card:hover .business-card-link {
  gap: 12px;
}

/* 运营网络 */
.network-section {
  background: #fff;
}

.network-data {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.network-data-item {
  text-align: center;
  padding: 32px 16px;
  background: linear-gradient(135deg, #f7f9fc 0%, #e9f0fa 100%);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  border: 1px solid var(--color-border);
}

.network-data-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.network-data-num {
  font-size: 42px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
  font-family: var(--font-sans);
}

.network-data-num small {
  font-size: 18px;
  font-weight: 400;
  margin-left: 2px;
}

.network-data-label {
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.5;
}

.network-map {
  height: auto;
  min-height: 520px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--color-border);
  padding: 18px 18px 12px;
}

/* 基地 Tab */
.map-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.map-tab {
  padding: 6px 16px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: #fff;
  font-size: 13px;
  color: var(--color-text-soft);
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: inherit;
}

.map-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.map-tab.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(0, 86, 174, 0.3);
}

.network-map img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* 新闻资讯 */
.news-section {
  background: var(--color-bg-soft);
}

.news-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
}

.news-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.news-card-large {
  display: flex;
  flex-direction: column;
}

.news-card-pic {
  height: 200px;
  overflow: hidden;
  background: var(--color-bg-dark);
  position: relative;
}

.news-card-large .news-card-pic {
  height: 280px;
}

.news-card-pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-card:hover .news-card-pic img {
  transform: scale(1.06);
}

.news-card-date {
  position: absolute;
  bottom: 0;
  left: 0;
  background: rgba(0, 86, 174, 0.85);
  color: #fff;
  padding: 8px 14px;
  font-size: 12px;
  letter-spacing: 1px;
}

.news-card-body {
  padding: 24px;
}

.news-card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.news-card-large .news-card-body h3 {
  font-size: 20px;
  -webkit-line-clamp: 2;
}

.news-card:hover .news-card-body h3 {
  color: var(--color-primary);
}

.news-card-text {
  color: var(--color-text-mute);
  font-size: 13px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  text-align: center;
  margin-top: 40px;
}

/* 合作伙伴 */
.partners-section {
  background: #fff;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 90px;
  gap: 16px;
}

.partner-card {
  height: 90px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-soft);
  letter-spacing: 1px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  cursor: pointer;
  padding: 6px 10px;
  overflow: hidden;
  box-sizing: border-box;
}

.partner-card img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 56px;
  object-fit: contain;
  transition: transform var(--transition);
}

.partner-card:hover img {
  transform: scale(1.06);
}

.partner-card.partner-text {
  text-align: center;
}

.partner-card:hover {
  background: #fff;
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, #003d7a 0%, #0056ae 100%);
  color: #fff;
  padding: 72px 0;
  text-align: center;
}

.cta-title {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.cta-desc {
  font-size: 16px;
  opacity: 0.85;
  margin-bottom: 32px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* 响应式 */
@media (max-width: 992px) {
  .banner-title {
    font-size: 36px;
  }
  .business-grid {
    grid-template-columns: 1fr;
  }
  .intro-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .network-data {
    grid-template-columns: repeat(3, 1fr);
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .banner {
    height: 420px;
  }
  .banner-title {
    font-size: 28px;
  }
  .banner-title span {
    font-size: 16px;
  }
  .intro-title {
    font-size: 24px;
  }
  .network-data {
    grid-template-columns: repeat(2, 1fr);
  }
  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-title {
    font-size: 24px;
  }
}