/* ========================================
   星羽创媒 官方网站 - 主样式表
   Design: Tech Innovation Theme
   Colors: Electric Blue + Neon Cyan + Dark Gray
   ======================================== */

/* === CSS Variables === */
:root {
  --primary: #0066ff;
  --primary-light: #00ffff;
  --primary-dark: #0052cc;
  --accent: #00ffff;
  --dark: #0a0a0a;
  --dark-2: #1e1e1e;
  --dark-3: #2d2d2d;
  --dark-card: #1e1e1e;
  --text: #ffffff;
  --text-dim: #b0b0b0;
  --text-muted: #808080;
  --white: #FFFFFF;
  --gradient-primary: linear-gradient(135deg, #0066ff, #00ffff);
  --gradient-dark: linear-gradient(180deg, #0a0a0a, #1e1e1e);
  --gradient-card: linear-gradient(180deg, #1e1e1e, #2d2d2d);
  --gradient-neon: linear-gradient(135deg, #00ffff, #0066ff);
  --gradient-glow: linear-gradient(135deg, rgba(0,255,255,0.1), rgba(0,102,255,0.1));
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(0,102,255,0.15);
  --shadow-neon: 0 0 20px rgba(0,255,255,0.3);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-cn: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-en: 'Inter', 'SF Pro Display', system-ui, sans-serif;
}

/* === Reset & Base === */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-cn);
  background: var(--dark);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

.container,
.section-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Section Common === */
section {
  padding: 100px 0;
  position: relative;
}

.section {
  padding: 100px 0;
  position: relative;
}

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

.section-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary-light);
  background: rgba(34,211,238,0.1);
  border: 1px solid rgba(34,211,238,0.2);
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-title,
.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
  color: var(--white);
  background: linear-gradient(135deg, var(--white), var(--text-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 400;
}

/* === Navigation === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10,14,23,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 10px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.nav-logo .logo-text {
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--white);
}

.nav-logo .logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  gap: 32px;
  align-items: center;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  padding: 4px 0;
  text-decoration: none;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* === Hero Section === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(0,102,255,0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 20%, rgba(0,255,255,0.06) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(0,102,255,0.04) 0%, transparent 50%);
  animation: heroBgFloat 20s ease-in-out infinite alternate;
}

@keyframes heroBgFloat {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-2%, -1%); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,255,255,0.1);
  border: 1px solid rgba(0,255,255,0.25);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--primary-light);
  margin-bottom: 28px;
  font-weight: 500;
  box-shadow: 0 0 20px rgba(0,255,255,0.15);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--primary-light);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
  box-shadow: 0 0 10px rgba(0,255,255,0.5);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.hero-title .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-dim);
  margin-bottom: 36px;
  line-height: 1.8;
  max-width: 480px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-cn);
  white-space: nowrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-cn);
  white-space: nowrap;
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0,102,255,0.3), 0 0 40px rgba(0,255,255,0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0,102,255,0.45), 0 0 60px rgba(0,255,255,0.2);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-cn);
  white-space: nowrap;
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(0,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--primary-light);
  color: var(--primary-light);
  background: rgba(0,255,255,0.05);
  box-shadow: 0 0 20px rgba(0,255,255,0.15);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  width: 100%;
  max-width: 460px;
  background: var(--gradient-card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 30px;
  right: 30px;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0.5;
}

.hero-card .stat-row {
  display: flex;
  gap: 32px;
  margin-bottom: 32px;
}

.hero-card .stat {
  text-align: center;
  flex: 1;
}

.hero-card .stat-number {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-en);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.hero-card .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-card .tag {
  padding: 6px 14px;
  background: rgba(0,255,255,0.08);
  border: 1px solid rgba(0,255,255,0.15);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--primary-light);
  transition: var(--transition);
}

.hero-card .tag:hover {
  background: rgba(0,255,255,0.15);
  box-shadow: 0 0 15px rgba(0,255,255,0.2);
}

/* === About Section === */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  align-items: start;
}

.about-intro {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.about-intro h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.about-intro h3 .icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.about-intro p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.9;
}

.about-points {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about-point .point-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: rgba(0,255,255,0.08);
  border: 1px solid rgba(0,255,255,0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 0 15px rgba(0,255,255,0.1);
}

.about-point h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.about-point p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* === Capabilities === */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.capability-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.capability-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,255,255,0.2);
  box-shadow: var(--shadow-glow), 0 0 30px rgba(0,255,255,0.1);
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-neon);
  opacity: 0;
  transition: var(--transition);
}

.capability-card:hover::before {
  opacity: 1;
}

.capability-card .card-icon {
  width: 52px;
  height: 52px;
  background: rgba(0,255,255,0.1);
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  box-shadow: 0 0 20px rgba(0,255,255,0.1);
}

.capability-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.capability-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}

.capability-card .card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.capability-card .feature-tag {
  font-size: 0.75rem;
  padding: 4px 12px;
  background: rgba(255,255,255,0.04);
  border-radius: 50px;
  color: var(--text-muted);
}

.capability-synergy {
  margin-top: 48px;
  background: var(--gradient-card);
  border: 1px solid rgba(0,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.capability-synergy::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0,255,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.capability-synergy h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--white);
}

.capability-synergy .synergy-formula {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: var(--font-en);
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 16px 0;
  text-shadow: 0 0 30px rgba(0,255,255,0.3);
}

.capability-synergy p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* === Cases Section === */
.cases-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 22px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50px;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-cn);
}

.filter-btn:hover,
.filter-btn.active {
  background: rgba(0,255,255,0.1);
  border-color: rgba(0,255,255,0.3);
  color: var(--primary-light);
  box-shadow: 0 0 15px rgba(0,255,255,0.1);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 24px;
}

.case-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  cursor: pointer;
}

.case-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0,255,255,0.2);
  box-shadow: var(--shadow-glow), 0 0 30px rgba(0,255,255,0.1);
}

.case-card .case-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 12px;
  background: rgba(0,255,255,0.1);
  color: var(--primary-light);
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: 50px;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.case-card p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}

.case-card .case-result {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* === GEO Section === */
.geo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.geo-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.geo-info p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 24px;
}

.geo-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.geo-compare .geo-box {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 20px;
}

.geo-box h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-dim);
}

.geo-box ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.geo-box ul li {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.geo-box ul li::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--primary-light);
  border-radius: 50%;
  min-width: 4px;
}

.geo-steps {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.geo-steps h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.step-num {
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: var(--gradient-neon);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  font-family: var(--font-en);
  box-shadow: 0 0 20px rgba(0,255,255,0.2);
}

.step-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.step-item p {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* === Team Section === */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.team-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0,255,255,0.2);
  box-shadow: 0 0 20px rgba(0,255,255,0.1);
}

.team-card .avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient-neon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 auto 16px;
  color: var(--white);
  box-shadow: 0 0 30px rgba(0,255,255,0.2);
}

.team-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 0.78rem;
  color: var(--primary-light);
  margin-bottom: 12px;
}

.team-card .bio {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* === Process Section === */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.process-card {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}

.process-card .process-num {
  width: 48px;
  height: 48px;
  background: var(--gradient-neon);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: var(--font-en);
  font-size: 1.1rem;
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 30px rgba(0,255,255,0.2);
}

.process-card::after {
  content: '';
  position: absolute;
  top: 24px;
  left: calc(50% + 40px);
  width: calc(100% - 80px);
  height: 1px;
  background: rgba(255,255,255,0.1);
  z-index: 0;
}

.process-card:last-child::after {
  display: none;
}

.process-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.process-card p {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.process-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.process-feature {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}

.process-feature:hover {
  border-color: rgba(0,255,255,0.2);
  box-shadow: 0 0 20px rgba(0,255,255,0.1);
}

.process-feature .pf-icon {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.process-feature h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--primary-light);
}

.process-feature p {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* === Training Section === */
.training-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.training-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.training-card:hover {
  transform: translateY(-3px);
  border-color: rgba(34,211,238,0.2);
}

.training-card .tc-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.training-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.training-card p {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* === Contact Section === */
.contact-section {
  background: var(--dark-2);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.contact-info h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.contact-info .contact-desc {
  color: var(--text-dim);
  margin-bottom: 32px;
  font-size: 1rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-item .ci-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: rgba(0,255,255,0.1);
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 0 15px rgba(0,255,255,0.1);
}

.contact-item .ci-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-item .ci-value {
  font-size: 0.95rem;
  font-weight: 500;
}

.contact-qr {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
}

.contact-qr .qr-placeholder {
  width: 160px;
  height: 160px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact-qr p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* === Footer === */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.04);
  padding: 28px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* === Scroll To Top === */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--gradient-neon);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  box-shadow: 0 4px 16px rgba(0,102,255,0.4), 0 0 30px rgba(0,255,255,0.2);
  border: none;
  color: var(--white);
  font-size: 1.2rem;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* === Animations === */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
}

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }
.delay-4 { transition-delay: 0.6s; }

/* === Responsive === */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-desc {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .capabilities-grid {
    grid-template-columns: 1fr;
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .geo-grid {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-card::after {
    display: none;
  }

  .training-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .process-features {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10,14,23,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 100px 32px 40px;
    gap: 24px;
    transition: var(--transition);
    border-left: 1px solid rgba(255,255,255,0.06);
  }

  .nav-menu.active {
    right: 0;
  }

  body.menu-open {
    overflow: hidden;
  }

  .nav-toggle {
    display: flex;
  }

  section,
  .section {
    padding: 64px 0;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .geo-compare {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 100px 0 60px;
  }
}

/* ========== Scroll Reveal Animations ========== */
.reveal-hidden {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.revealed {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.reveal-child {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-child.revealed {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* ========== Hero Particles ========== */
@keyframes heroFloat {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) translateX(40px) scale(0.3);
    opacity: 0;
  }
}

.particle {
  will-change: transform, opacity;
}

/* ========== Process Timeline ========== */
.process-progress-fill {
  width: 0;
  transition: width 2s cubic-bezier(0.4, 0, 0.2, 1);
}

.process-step.active {
  opacity: 1;
  transform: scale(1.05);
}

.process-step.active .step-num {
  background: var(--gradient-primary);
  color: #fff;
}

/* ========== Nav Toggle Animation ========== */
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ========== Case Card Filter Transitions ========== */
.case-card {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

/* ========== Nav CTA Button ========== */
.nav-cta {
  background: var(--gradient-neon);
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 24px;
  font-weight: 600 !important;
  box-shadow: 0 0 20px rgba(0,255,255,0.2);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,255,255,0.3), 0 0 40px rgba(0,255,255,0.2);
}