.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.3) saturate(0.8);
}
.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(13,13,18,0.95) 0%, rgba(13,13,18,0.6) 40%, rgba(13,13,18,0.85) 100%);
}
.hero-mesh {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(59,130,246,0.6) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(99,102,241,0.5) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(139,92,246,0.4) 0%, transparent 50%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  padding-top: 72px;
  width: 100%;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  min-height: calc(100vh - 72px);
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
}
.hero-left {}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 100px;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.2);
  color: #93C5FD;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp 0.8s 0.3s forwards;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #3B82F6;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}
.hero h1 {
  font-size: clamp(2.8rem, 6.5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s forwards;
}
.hero h1 .line2 {
  background: var(--accent-grad2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  max-width: 500px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.8s 0.7s forwards;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.9s forwards;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-right {
  position: relative;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}
.hero-card-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero-stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 24px 28px;
  backdrop-filter: blur(10px);
  transition: all 0.4s;
  cursor: default;
}
.hero-stat-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(59,130,246,0.3);
  transform: translateX(-8px);
}
.hero-stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--accent-grad2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  margin-top: 4px;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.3);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  z-index: 3;
}
.hero-scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  position: relative;
}
.hero-scroll-mouse::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px; height: 8px;
  background: rgba(59,130,246,0.8);
  border-radius: 2px;
  animation: scroll-wheel 2s infinite;
}
@keyframes scroll-wheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

.about { padding: 120px 0; background: var(--bg); }
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 900px) { .about-layout { grid-template-columns: 1fr; gap: 48px; } }
.about-img-wrap {
  position: relative;
}
.about-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
}
.about-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}
.about-img:hover img { transform: scale(1.05); }
.about-float-card {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 20px 28px;
  box-shadow: var(--shadow-lg);
}
.about-float-card .eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.about-float-card .value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--dark);
}
@media (max-width: 900px) {
  .about-float-card { bottom: -16px; right: 16px; }
}
.about-text { font-size: 0.95rem; line-height: 2; color: var(--text2); margin-top: 20px; }
.about-text p { margin-bottom: 16px; }

.marquee-section {
  padding: 40px 0;
  background: var(--bg-alt);
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.marquee-track {
  display: flex;
  gap: 60px;
  animation: marquee 30s linear infinite;
  width: max-content;
}
.marquee-item {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text3);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 60px;
  opacity: 0.4;
}
.marquee-item .sep {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.business { padding: 120px 0; background: var(--bg); }
.business-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 64px;
}
@media (max-width: 768px) { .business-grid { grid-template-columns: 1fr; } }
.biz-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  padding: 44px 40px;
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
}
.biz-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: var(--accent-grad);
  opacity: 0;
  transition: opacity 0.4s;
}
.biz-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.biz-card:hover::before { opacity: 1; }
.biz-card-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4.5rem;
  font-weight: 800;
  -webkit-text-stroke: 1px var(--border2);
  color: transparent;
  line-height: 1;
  margin-bottom: 20px;
  transition: all 0.4s;
}
.biz-card:hover .biz-card-num {
  -webkit-text-stroke: 1px var(--accent);
  color: var(--accent-glow);
}
.biz-card-en {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 6px;
}
.biz-card-cn {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark);
}
.biz-card-desc {
  font-size: 0.88rem;
  color: var(--text2);
  line-height: 1.7;
}
.biz-card-arrow {
  position: absolute;
  bottom: 32px; right: 32px;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s;
  color: var(--text3);
}
.biz-card:hover .biz-card-arrow {
  background: var(--accent-grad);
  color: #fff;
  transform: translate(4px, -4px);
}

.cases { padding: 120px 0; background: var(--bg-alt); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}
@media (max-width: 900px) { .cases-grid { grid-template-columns: 1fr; } }
.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  transition: all 0.5s;
}
.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.case-card-img {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.case-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}
.case-card:hover .case-card-img img { transform: scale(1.08); }
.case-card-img .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,13,18,0.6) 0%, transparent 60%);
}
.case-card-img .tag {
  position: absolute;
  bottom: 16px; left: 16px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  color: var(--accent);
}
.case-card-body { padding: 28px; }
.case-card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
  transition: color 0.3s;
}
.case-card:hover .case-card-body h3 { color: var(--accent); }
.case-card-body .desc {
  font-size: 0.85rem;
  color: var(--text2);
  line-height: 1.7;
  margin-top: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.case-card-body .link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.4s;
}
.case-card:hover .link { opacity: 1; transform: translateY(0); }

.contact { padding: 120px 0; background: var(--dark); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact .section-heading { color: #fff; }
.contact .section-desc { color: rgba(255,255,255,0.5); }
.contact-items { margin-top: 40px; }
.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  align-items: flex-start;
}
.contact-icon-box {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent);
}
.contact-icon-box svg { width: 20px; height: 20px; }
.contact-item-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 4px;
}
.contact-item-value {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}
.contact-item-value a { color: rgba(255,255,255,0.75); }
.contact-item-value a:hover { color: #fff; }
.contact-form-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-form-box h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 28px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (max-width: 500px) { .form-grid { grid-template-columns: 1fr; } }
.form-field { margin-bottom: 16px; }
.form-field label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255,255,255,0.4);
  margin-bottom: 8px;
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.3s, background 0.3s;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent);
  background: rgba(59,130,246,0.05);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: rgba(255,255,255,0.2); }
.form-field textarea { resize: vertical; min-height: 110px; }
.btn-submit-form {
  width: 100%;
  padding: 16px;
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.4s;
  letter-spacing: 0.05em;
}
.btn-submit-form:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(59,130,246,0.35);
}

.cta-section {
  padding: 100px 0;
  background: var(--bg);
  text-align: center;
}
.cta-section .section-heading { max-width: 600px; margin: 0 auto 16px; }
.cta-section .section-desc { max-width: 500px; margin: 0 auto 40px; text-align: center; }