/* ============================================
   Homepage Styles
   ============================================ */


/* ============================================
   Hero Slideshow
   ============================================ */
.hero {
  position: relative;
  width: 100%;
  height: 640px;
  min-height: 520px;
  overflow: hidden;
  background-color: var(--color-dark, #1a1a2e);
}

.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease-in-out, visibility 1s ease-in-out;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(0, 180, 216, 0.18) 0%, transparent 55%);
  pointer-events: none;
}

.hero-slide-1 {
  background: linear-gradient(135deg, #0a1a3a 0%, #1a3a8a 45%, #1a73e8 100%);
  animation: heroSlide1 15s infinite;
}

.hero-slide-2 {
  background: linear-gradient(135deg, #0c2240 0%, #1557b0 45%, #00b4d8 100%);
  animation: heroSlide2 15s infinite;
}

.hero-slide-3 {
  background: linear-gradient(135deg, #1a1a2e 0%, #1a73e8 50%, #00b4d8 100%);
  animation: heroSlide3 15s infinite;
}

@keyframes heroSlide1 {
  0%, 30% { opacity: 1; visibility: visible; }
  33%, 100% { opacity: 0; visibility: hidden; }
}

@keyframes heroSlide2 {
  0%, 32% { opacity: 0; visibility: hidden; }
  35%, 64% { opacity: 1; visibility: visible; }
  66%, 100% { opacity: 0; visibility: hidden; }
}

@keyframes heroSlide3 {
  0%, 64% { opacity: 0; visibility: hidden; }
  67%, 95% { opacity: 1; visibility: visible; }
  98%, 100% { opacity: 0; visibility: hidden; }
}

.hero-slide-inner {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding: var(--space-xl, 48px) 0;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm, 14px);
  font-weight: 600;
  color: var(--color-accent, #00b4d8);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: var(--space-md, 16px);
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease forwards;
}

.hero-title {
  font-size: var(--font-size-5xl, 48px);
  font-weight: 800;
  color: var(--color-white, #ffffff);
  line-height: 1.2;
  margin-bottom: var(--space-md, 16px);
  letter-spacing: -0.5px;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.8s 0.15s ease forwards;
}

.hero-subtitle {
  font-size: var(--font-size-lg, 18px);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
  margin-bottom: var(--space-xl, 48px);
  max-width: 640px;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.8s 0.3s ease forwards;
}

.hero-cta {
  font-size: var(--font-size-base, 16px);
  padding: 14px var(--space-xl, 48px);
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.8s 0.45s ease forwards;
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-dots {
  position: absolute;
  bottom: var(--space-lg, 24px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm, 8px);
  z-index: 5;
}

.hero-dot {
  width: 36px;
  height: 4px;
  border-radius: var(--border-radius-full, 9999px);
  border: none;
  background-color: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  padding: 20px 0;
  background-clip: content-box;
  transition: all var(--transition-normal, 0.3s ease);
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hero-dot.active {
  background-color: var(--color-white, #ffffff);
  width: 56px;
  height: 4px;
}

.hero-scroll-cue {
  position: absolute;
  bottom: var(--space-md, 16px);
  right: var(--space-xl, 48px);
  z-index: 5;
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--border-radius-full, 9999px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 6px;
  text-decoration: none;
}

.hero-scroll-line {
  width: 2px;
  height: 8px;
  background-color: var(--color-white, #ffffff);
  border-radius: 2px;
  animation: scrollLine 1.6s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}


/* ============================================
   核心能力 (Core Capability)
   ============================================ */
.section-capability {
  background-color: var(--color-white, #ffffff);
}

.capability-card {
  text-align: center;
  padding: var(--space-xl, 48px) var(--space-lg, 24px);
  border: 1px solid var(--color-border, #e0e0e0);
  position: relative;
  overflow: hidden;
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary, #1a73e8), var(--color-accent, #00b4d8));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal, 0.3s ease);
}

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

.capability-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-lg, 24px);
  border-radius: var(--border-radius-lg, 16px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-light, #e8f0fe), var(--color-white, #ffffff));
  color: var(--color-primary, #1a73e8);
  transition: all var(--transition-normal, 0.3s ease);
}

.capability-card:hover .capability-icon {
  background: linear-gradient(135deg, var(--color-primary, #1a73e8), var(--color-accent, #00b4d8));
  color: var(--color-white, #ffffff);
  transform: rotate(-6deg) scale(1.05);
}

.capability-icon svg {
  width: 36px;
  height: 36px;
}

.capability-title {
  font-size: var(--font-size-lg, 18px);
  font-weight: 700;
  color: var(--color-dark, #1a1a2e);
  margin-bottom: var(--space-sm, 8px);
}

.capability-desc {
  font-size: var(--font-size-sm, 14px);
  color: var(--color-text-muted, #666666);
  line-height: 1.6;
  margin: 0;
}


/* ============================================
   关于我们简介 (About Preview)
   ============================================ */
.section-about {
  background-color: var(--color-bg-light, #f5f7fa);
  position: relative;
  overflow: hidden;
}

.section-about::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxl, 80px);
  align-items: center;
  position: relative;
}

.about-image {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--border-radius-lg, 16px);
  overflow: hidden;
}

.about-image-inner {
  position: relative;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0c2240 0%, #1a73e8 50%, #00b4d8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-lg, 16px);
  overflow: hidden;
}

.about-image-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.18) 0%, transparent 35%),
    radial-gradient(circle at 75% 65%, rgba(0, 180, 216, 0.35) 0%, transparent 45%),
    repeating-linear-gradient(45deg, transparent 0 14px, rgba(255, 255, 255, 0.04) 14px 16px);
}

.about-image-content {
  position: relative;
  z-index: 2;
}

.about-image-badge {
  background-color: rgba(255, 255, 255, 0.95);
  padding: var(--space-lg, 24px) var(--space-xl, 48px);
  border-radius: var(--border-radius-md, 8px);
  text-align: center;
  box-shadow: var(--shadow-lg);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs, 4px);
}

.about-image-badge-num {
  font-size: var(--font-size-5xl, 48px);
  font-weight: 800;
  color: var(--color-primary, #1a73e8);
  line-height: 1;
}

.about-image-badge-num sup {
  font-size: 0.6em;
  vertical-align: super;
}

.about-image-badge-text {
  font-size: var(--font-size-sm, 14px);
  font-weight: 600;
  color: var(--color-text-muted, #666666);
  letter-spacing: 2px;
}

.about-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm, 14px);
  font-weight: 600;
  color: var(--color-primary, #1a73e8);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: var(--space-md, 16px);
}

.about-heading {
  font-size: var(--font-size-3xl, 32px);
  font-weight: 700;
  color: var(--color-dark, #1a1a2e);
  line-height: 1.3;
  margin-bottom: var(--space-lg, 24px);
}

.about-desc {
  font-size: var(--font-size-base, 16px);
  color: var(--color-text-muted, #666666);
  line-height: 1.8;
  margin-bottom: var(--space-xl, 48px);
}

.about-cta {
  padding: 14px var(--space-xl, 48px);
}


/* ============================================
   数据统计 (Stats Counter)
   ============================================ */
.section-stats {
  background:
    linear-gradient(135deg, #0c2240 0%, #1a3a8a 50%, #1a73e8 100%);
  color: var(--color-white, #ffffff);
  position: relative;
  overflow: hidden;
}

.section-stats::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(0, 180, 216, 0.18) 0%, transparent 35%),
    radial-gradient(circle at 85% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 40%);
  pointer-events: none;
}

.section-stats .section-title h2 {
  color: var(--color-white, #ffffff);
}

.section-stats .section-title h2::after {
  background-color: var(--color-accent, #00b4d8);
}

.stats-grid {
  position: relative;
  z-index: 2;
}

.stats-grid .stat-item {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: var(--space-xl, 48px) var(--space-md, 16px);
  position: relative;
}

.stats-grid .stat-item:hover {
  background-color: rgba(255, 255, 255, 0.14);
  border-color: var(--color-accent, #00b4d8);
  transform: translateY(-6px);
}

.stats-grid .stat-item .stat-number {
  color: var(--color-white, #ffffff);
  font-size: var(--font-size-5xl, 48px);
}

.stats-grid .stat-item .stat-suffix {
  display: inline-block;
  font-size: var(--font-size-2xl, 24px);
  font-weight: 700;
  color: var(--color-accent, #00b4d8);
  margin-left: 2px;
  vertical-align: top;
  line-height: 1.1;
}

.stats-grid .stat-item .stat-label {
  color: rgba(255, 255, 255, 0.85);
  text-transform: none;
  letter-spacing: 1px;
  margin-top: var(--space-sm, 8px);
}


/* ============================================
   Products / News Cards (Homepage)
   ============================================ */
.home-products-grid,
.home-news-grid {
  align-items: stretch;
}

.home-products-grid .card,
.home-news-grid .card {
  height: 100%;
}

.section-cta {
  text-align: center;
  margin-top: var(--space-xl, 48px);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-xxl, 80px) var(--space-lg, 24px);
  color: var(--color-text-muted, #666666);
  font-size: var(--font-size-base, 16px);
  background-color: var(--color-bg-light, #f5f7fa);
  border: 1px dashed var(--color-border, #e0e0e0);
  border-radius: var(--border-radius-md, 8px);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--space-md, 16px);
  display: block;
  opacity: 0.4;
}


/* ============================================
   Partners Grid
   ============================================ */
.home-partners-grid {
  gap: var(--space-md, 16px);
}

.partner-logo-tile {
  flex-direction: column;
  gap: var(--space-xs, 4px);
}

.partner-logo-img {
  display: block;
  max-height: 36px;
  max-width: 80%;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
}

.partner-name-fallback {
  color: var(--color-text-muted, #666666);
  font-weight: 700;
  font-size: var(--font-size-base, 16px);
  letter-spacing: 1px;
  text-align: center;
  line-height: 1.2;
}


/* ============================================
   Final CTA
   ============================================ */
.section-final-cta {
  background-color: var(--color-white, #ffffff);
  padding: var(--space-xl, 48px) 0 var(--space-xxl, 80px);
}

.final-cta-card {
  position: relative;
  border-radius: var(--border-radius-lg, 16px);
  padding: var(--space-xxl, 80px) var(--space-xl, 48px);
  text-align: center;
  color: var(--color-white, #ffffff);
  background:
    linear-gradient(135deg, #0c2240 0%, #1a73e8 50%, #00b4d8 100%);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.final-cta-decor {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0%, transparent 70%);
}

.final-cta-decor-1 {
  width: 320px;
  height: 320px;
  top: -120px;
  right: -100px;
}

.final-cta-decor-2 {
  width: 240px;
  height: 240px;
  bottom: -80px;
  left: -60px;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.32) 0%, transparent 70%);
}

.final-cta-title {
  position: relative;
  z-index: 2;
  font-size: var(--font-size-3xl, 32px);
  font-weight: 800;
  margin-bottom: var(--space-md, 16px);
  letter-spacing: -0.3px;
}

.final-cta-subtitle {
  position: relative;
  z-index: 2;
  font-size: var(--font-size-lg, 18px);
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: var(--space-xl, 48px);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta-btn {
  position: relative;
  z-index: 2;
  padding: 14px var(--space-xxl, 80px);
  font-size: var(--font-size-base, 16px);
}


/* ============================================
   Responsive
   ============================================ */
@media (max-width: 992px) {
  .hero {
    height: 560px;
  }
  .hero-title {
    font-size: var(--font-size-4xl, 40px);
  }
  .about-grid {
    gap: var(--space-xl, 48px);
  }
  .about-heading {
    font-size: var(--font-size-2xl, 24px);
  }
  .home-partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .hero {
    height: 520px;
    min-height: 480px;
  }
  .hero-title {
    font-size: var(--font-size-3xl, 32px);
  }
  .hero-subtitle {
    font-size: var(--font-size-base, 16px);
  }
  .hero-scroll-cue {
    display: none;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl, 48px);
  }
  .about-image {
    max-width: 480px;
    margin: 0 auto;
  }
  .home-partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .final-cta-card {
    padding: var(--space-xl, 48px) var(--space-md, 16px);
  }
  .final-cta-title {
    font-size: var(--font-size-2xl, 24px);
  }
  .final-cta-subtitle {
    font-size: var(--font-size-base, 16px);
  }
}

@media (max-width: 576px) {
  .hero {
    height: 480px;
    min-height: 440px;
  }
  .hero-slide-inner {
    padding: var(--space-md, 16px) 0;
  }
  .hero-title {
    font-size: var(--font-size-2xl, 24px);
  }
  .hero-eyebrow {
    font-size: var(--font-size-xs, 12px);
    letter-spacing: 2px;
  }
  .hero-dots {
    bottom: var(--space-md, 16px);
  }
  .hero-dot {
    width: 24px;
  }
  .hero-dot.active {
    width: 36px;
  }
  .stats-grid .stat-item .stat-number {
    font-size: var(--font-size-4xl, 40px);
  }
}