:root {
  --primary: #028090;
  --primary-light: #02a8b8;
  --primary-dark: #016670;
  --accent: #00c9a7;
  --accent-glow: rgba(0, 201, 167, 0.35);
  --navy: #0c1e2e;
  --navy-light: #152a3d;
  --text: #1a2b3c;
  --text-muted: #5a6d7e;
  --bg: #f4f8fa;
  --white: #ffffff;
  --border: rgba(2, 128, 144, 0.12);
  --shadow: 0 4px 24px rgba(12, 30, 46, 0.08);
  --shadow-lg: 0 12px 48px rgba(12, 30, 46, 0.14);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img { height: 42px; width: auto; }

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.02em;
}

.logo-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.nav { display: flex; align-items: center; gap: 32px; }

.nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav a:hover, .nav a.active { color: var(--primary); }

.nav a.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.header-slogan {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.back-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--primary);
  transition: color var(--transition);
}

.back-link:hover { color: var(--primary-dark); }

.hero-compact {
  padding-top: 100px;
  padding-bottom: 36px;
  background: linear-gradient(135deg, var(--navy) 0%, #0a3040 60%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
}

.hero-compact h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.hero-compact p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.65);
  max-width: 520px;
  margin: 0 auto;
}

.section-cases {
  padding: 48px 0 80px;
  background: var(--bg);
}

.footer-compact {
  padding: 32px 0;
}

.footer-compact-inner {
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.9;
}

.footer-info {
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-info p,
.footer-legal p {
  margin: 0;
}

.footer-compact-inner a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

.footer-compact-inner a:hover {
  color: var(--accent);
}

.footer-links-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.footer-sep {
  opacity: 0.35;
  user-select: none;
}

/* Legal Pages */
.legal-page {
  padding: 100px 0 60px;
  min-height: calc(100vh - 200px);
}

.breadcrumb-light {
  color: var(--text-muted);
  margin-bottom: 32px;
}

.breadcrumb-light a {
  color: var(--primary);
  transition: color var(--transition);
}

.breadcrumb-light a:hover { color: var(--primary-dark); }

.legal-header {
  text-align: center;
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.legal-header h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 12px;
}

.legal-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.legal-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 48px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.legal-content section {
  margin-bottom: 32px;
}

.legal-content section:last-child { margin-bottom: 0; }

.legal-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
}

.legal-content p {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 12px;
}

.legal-content ul {
  margin: 8px 0 12px 20px;
}

.legal-content li {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 6px;
}

@media (max-width: 768px) {
  .legal-content { padding: 28px 24px; }
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy) 0%, #0a3040 40%, var(--primary-dark) 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-bg::before {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.hero-bg::after {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(2, 128, 144, 0.25) 0%, transparent 70%);
  bottom: -80px;
  left: -80px;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -20px); }
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.hero-content { color: var(--white); }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 100px;
  font-size: 0.82rem;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(90deg, var(--accent), #5eead4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-slogan {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 12px;
  letter-spacing: 0.15em;
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--primary));
  color: var(--white);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  color: var(--white);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

/* Section */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(2, 128, 144, 0.08);
  color: var(--primary);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}

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

.service-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

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

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(2, 128, 144, 0.1), rgba(0, 201, 167, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 24px;
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Filter */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--white);
  border: 1.5px solid var(--border);
  transition: var(--transition);
}

.filter-btn:hover { border-color: var(--primary); color: var(--primary); }

.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(2, 128, 144, 0.3);
}

/* Case Cards */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.case-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.case-card.hidden { display: none; }

.case-cover {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--navy);
}

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

.case-card:hover .case-cover img { transform: scale(1.05); }

.case-cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 30, 46, 0.7) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: var(--transition);
}

.case-card:hover .case-cover-overlay { opacity: 1; }

.case-cover-overlay span {
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.case-service-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 5px 14px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  backdrop-filter: blur(8px);
}

.case-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }

.case-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.case-industry {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.case-highlight {
  font-size: 0.88rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 16px;
  padding: 10px 14px;
  background: rgba(2, 128, 144, 0.06);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.case-tag {
  padding: 4px 12px;
  background: var(--bg);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Showcase */
.showcase { background: var(--white); }

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.showcase-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--navy);
  position: relative;
  aspect-ratio: 16/9;
  cursor: pointer;
}

.showcase-item video,
.showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.showcase-item .play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.showcase-item:hover .play-icon { background: rgba(0, 0, 0, 0.15); }

.play-icon svg {
  width: 56px;
  height: 56px;
  fill: var(--white);
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}

.showcase-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 500;
}

.achievements {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.achievement-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.achievement-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 20px;
}

.about-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-info {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.info-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(2, 128, 144, 0.1), rgba(0, 201, 167, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.info-item strong {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.info-item span {
  font-size: 0.95rem;
  color: var(--navy);
  font-weight: 500;
}

.about-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-images img {
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.about-images img:first-child { grid-row: span 2; aspect-ratio: auto; }

/* Footer */
.footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-name { color: var(--white); }
.footer-brand .logo-sub { color: rgba(255,255,255,0.5); }

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.footer-links { display: flex; flex-direction: column; gap: 10px; }

.footer-links a {
  font-size: 0.88rem;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

/* Case Detail Page */
.case-hero {
  padding-top: 120px;
  padding-bottom: 60px;
  background: linear-gradient(135deg, var(--navy) 0%, #0a3040 60%, var(--primary-dark) 100%);
  color: var(--white);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 32px;
}

.breadcrumb a { color: rgba(255, 255, 255, 0.7); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: 0.4; }

.case-hero-content { max-width: 720px; }

.case-hero .service-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 201, 167, 0.15);
  border: 1px solid rgba(0, 201, 167, 0.3);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.case-hero h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.case-hero-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.case-hero-highlight {
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 600;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--accent);
  margin-bottom: 20px;
}

.case-hero-tags { display: flex; gap: 10px; flex-wrap: wrap; }

.case-hero-tags span {
  padding: 5px 14px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
}

.case-hero-summary {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.8;
  margin-top: 20px;
}

/* Slide Viewer */
.case-content { padding: 60px 0 100px; }

.viewer-layout {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 24px;
}

.slide-main {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
}

.slide-display {
  position: relative;
  aspect-ratio: 16/9;
  background: #e8eef2;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-in;
}

.slide-display img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.slide-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

.slide-nav button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--navy);
  transition: var(--transition);
}

.slide-nav button:hover { background: var(--primary); color: var(--white); }
.slide-nav button:disabled { opacity: 0.3; cursor: not-allowed; }

.slide-counter {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

.slide-thumbs {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 600px;
  overflow-y: auto;
  padding-right: 4px;
}

.slide-thumbs::-webkit-scrollbar { width: 4px; }
.slide-thumbs::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.thumb {
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  opacity: 0.6;
}

.thumb.active { border-color: var(--primary); opacity: 1; }
.thumb:hover { opacity: 1; }

.thumb img { aspect-ratio: 16/9; object-fit: cover; width: 100%; }

/* Slide Grid (mobile alt) */
.slide-grid {
  display: none;
  grid-template-columns: 1fr;
  gap: 20px;
}

.slide-grid-item {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.slide-grid-item img { width: 100%; }

/* Case Navigation */
.case-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.case-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
  max-width: 280px;
}

.case-nav-link:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.case-nav-link .arrow { font-size: 1.2rem; color: var(--primary); }

.case-nav-link .label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.case-nav-link .name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.lightbox.active { display: flex; }

.lightbox img {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.lightbox-close:hover { background: rgba(255, 255, 255, 0.2); }

.lightbox-prev, .lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }
.lightbox-prev:hover, .lightbox-next:hover { background: rgba(255, 255, 255, 0.2); }

/* Video Modal */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.video-modal.active { display: flex; }

.video-modal video {
  max-width: 90vw;
  max-height: 80vh;
  border-radius: 12px;
}

.video-modal .lightbox-close { position: absolute; }

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-stats { grid-template-columns: repeat(4, 1fr); }
  .services-grid, .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .achievements { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .viewer-layout { grid-template-columns: 1fr; }
  .slide-thumbs {
    flex-direction: row;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
  }
  .thumb { min-width: 120px; }
}

@media (max-width: 768px) {
  .header-slogan { display: none; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow);
  }
  .menu-toggle { display: flex; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .services-grid, .cases-grid, .showcase-grid { grid-template-columns: 1fr; }
  .achievements { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .viewer-layout .slide-thumbs { display: none; }
  .slide-grid { display: grid; }
  .slide-main { display: none; }
  .case-nav { flex-direction: column; gap: 16px; }
  .case-nav-link { max-width: 100%; width: 100%; }
}