/* ===================================================
   index.css - 首页专属样式
   =================================================== */

/* ===================================================
   Hero Layout
   =================================================== */

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  min-height: calc(100vh - var(--nav-height));
  padding: var(--spacing-3xl) 0;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.4);
  font-size: var(--font-size-xs);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* ===================================================
   Hero Visual - Floating Cards
   =================================================== */

.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 460px;
}

.hero-cards {
  position: relative;
  width: 360px;
  height: 360px;
}

.hero-card {
  position: absolute;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: default;
}

.hero-card:hover {
  transform: scale(1.05) translateY(-4px) !important;
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
  background: rgba(255,255,255,0.13);
}

.hero-card__icon { font-size: 2rem; }
.hero-card__label { font-size: var(--font-size-base); font-weight: 700; color: white; }
.hero-card__sub { font-size: var(--font-size-xs); color: rgba(255,255,255,0.6); }

.hero-card--1 {
  top: 0; left: 0;
  width: 160px;
  animation: float1 4s ease-in-out infinite;
}
.hero-card--2 {
  top: 0; right: 0;
  width: 160px;
  animation: float2 4.5s ease-in-out infinite;
}
.hero-card--3 {
  bottom: 40px; left: 0;
  width: 160px;
  animation: float3 5s ease-in-out infinite;
}
.hero-card--4 {
  bottom: 0; right: 0;
  width: 170px;
  animation: float4 3.8s ease-in-out infinite;
}

/* Center glow orb */
.hero-cards::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,180,216,0.3), transparent 70%);
  filter: blur(20px);
}

@keyframes float1 {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes float2 {
  0%,100% { transform: translateY(-8px); }
  50% { transform: translateY(4px); }
}
@keyframes float3 {
  0%,100% { transform: translateY(4px); }
  50% { transform: translateY(-10px); }
}
@keyframes float4 {
  0%,100% { transform: translateY(-4px); }
  50% { transform: translateY(8px); }
}

/* ===================================================
   Partner Bar
   =================================================== */

.partner-bar {
  background: white;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--spacing-lg) 0;
  overflow: hidden;
}

.partner-bar .container {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.partner-bar__label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
  flex-shrink: 0;
  padding-right: var(--spacing-lg);
  border-right: 1px solid var(--color-border);
}

.partner-bar__track-wrap {
  flex: 1;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
}

.partner-bar__track {
  display: flex;
  gap: var(--spacing-xl);
  animation: scroll-left 25s linear infinite;
  width: max-content;
}

.partner-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
  background: var(--color-bg-light);
  transition: all var(--transition-fast);
  cursor: default;
}

.partner-badge:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(10, 90, 170, 0.04);
}

/* ===================================================
   animate-on-scroll visibility
   =================================================== */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================================
   Process Steps
   =================================================== */

.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  overflow-x: auto;
  padding-bottom: var(--spacing-md);
}

.process-step {
  flex: 1;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  min-width: 160px;
  position: relative;
}

.process-step__num {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11px;
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.4;
  letter-spacing: 0.05em;
}

.process-step__icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.process-step__title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.process-step__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.process-step__arrow {
  display: flex;
  align-items: center;
  padding-top: 60px;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* ===================================================
   Case Grid
   =================================================== */

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

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

.cta-banner {
  position: relative;
  background: var(--gradient-primary);
  padding: var(--spacing-4xl) 0;
  overflow: hidden;
  text-align: center;
}

.cta-banner__bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.cta-banner__content { position: relative; z-index: 1; }

.cta-banner__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: white;
  margin-bottom: var(--spacing-md);
}

.cta-banner__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--spacing-2xl);
}

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

/* ===================================================
   News Cards
   =================================================== */

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.news-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.news-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
  border-color: rgba(10,90,170,0.15);
}

.news-card__date {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.news-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(10,90,170,0.07);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-sm);
}

.news-card__title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.news-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.news-card__link:hover { color: var(--color-primary-light); }

/* ===================================================
   Responsive
   =================================================== */

@media (max-width: 1024px) {
  .hero-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__visual { display: none; }
  .hero__subtitle { margin: 0 auto var(--spacing-2xl); }
  .hero__actions { justify-content: center; }
  .hero__stats { justify-content: center; }

  .case-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .process-steps { flex-direction: column; align-items: center; }
  .process-step__arrow { transform: rotate(90deg); padding-top: 0; }
  .cta-banner__title { font-size: var(--font-size-2xl); }
  .partner-bar__label { display: none; }
}