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

:root {
  --primary: #0055CC;
  --primary-dark: #003D99;
  --primary-light: #0077EE;
  --accent: #00B4D8;
  --accent2: #00A8CC;
  --bg-dark: #060D1F;
  --bg-card: #FFFFFF;
  --bg-card2: #F0F4FF;
  --text: #1A1A2E;
  --text-light: #64748B;
  --text-white: #E2E8F0;
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 2px 12px rgba(0,0,0,0.04);
  --shadow-lg: 0 8px 32px rgba(0,85,204,0.1);
  --transition: 0.2s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ===== 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 rgba(0,0,0,0.06);
  transition: var(--transition);
}
.header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 700; color: var(--text);
}
.logo img { height: 36px; }
.logo-text { display: flex; align-items: center; gap: 10px; }

.nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  display: inline-block; padding: 8px 18px; border-radius: 8px; font-size: 15px;
  color: var(--text-light); transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(0,85,204,0.06); }

/* Nav Dropdown */
.nav-dropdown { position: relative; }
.dropdown-menu {
  position: absolute; top: 100%; left: 0;
  background: #fff; border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  border: 1px solid var(--border-light);
  padding: 6px 0; min-width: 160px;
  opacity: 0; visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
  z-index: 1001;
}
.dropdown-wide { min-width: 170px; }
.dropdown-menu a {
  display: block; padding: 10px 20px; font-size: 14px;
  color: var(--text); white-space: nowrap;
  transition: var(--transition);
}
.dropdown-menu a:hover {
  color: var(--primary); background: rgba(0,85,204,0.06);
}
.nav-dropdown:hover .dropdown-menu {
  opacity: 1; visibility: visible;
}

.mobile-menu-btn {
  display: none; background: none; border: none; font-size: 24px;
  cursor: pointer; color: var(--text);
}

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  background: var(--bg-dark); color: var(--text-white);
  overflow: hidden; padding: 120px 0 80px;
}
.hero-bg { position: absolute; inset: 0; }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero-glow {
  position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.2;
}
.glow-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,85,204,0.4), transparent);
  top: -250px; right: -150px; animation: float 8s ease-in-out infinite;
}
.glow-2 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,180,216,0.25), transparent);
  bottom: -200px; left: -120px; animation: float 10s ease-in-out infinite reverse;
}
.glow-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,85,204,0.2), transparent);
  top: 50%; left: 50%; transform: translate(-50%,-50%);
  animation: float 12s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(40px, -25px); }
  66% { transform: translate(-20px, 15px); }
}
.hero .container { position: relative; z-index: 1; text-align: center; }

.hero-badge {
  display: inline-block; padding: 8px 24px;
  background: rgba(0,85,204,0.1); border: 1px solid rgba(0,85,204,0.25);
  border-radius: 50px; font-size: 13px; color: var(--accent);
  margin-bottom: 32px; letter-spacing: 0.5px;
}
.hero-title {
  font-size: 56px; font-weight: 800; line-height: 1.2; margin-bottom: 24px;
  letter-spacing: -0.5px;
}
.gradient-text {
  background: linear-gradient(135deg, #00B4D8, #0066FF, #00A8CC);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 18px; color: rgba(255,255,255,0.8);
  max-width: 600px; margin: 0 auto 40px;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; margin-bottom: 64px; }

.btn-primary {
  display: inline-block; padding: 14px 36px;
  background: linear-gradient(135deg, #0066FF, #0055CC);
  color: #fff; border: none; border-radius: 10px;
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: var(--transition); box-shadow: 0 4px 20px rgba(0,85,204,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,85,204,0.4); }

.btn-outline {
  display: inline-block; padding: 14px 36px;
  background: transparent; color: var(--white);
  border: 1px solid rgba(255,255,255,0.3); border-radius: 10px;
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: var(--transition);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(0,180,216,0.06); }

.hero-stats { display: flex; gap: 48px; justify-content: center; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-num {
  display: block; font-size: 36px; font-weight: 800;
  background: linear-gradient(135deg, #00B4D8, #FFFFFF);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 14px; color: rgba(255,255,255,0.65); margin-top: 4px; }

/* ===== Sections Common ===== */
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-block; padding: 6px 18px;
  background: rgba(0,85,204,0.08); color: var(--primary);
  border-radius: 50px; font-size: 13px; font-weight: 600;
  margin-bottom: 16px; letter-spacing: 0.5px;
  text-transform: uppercase;
}
.section-title { font-size: 40px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.5px; }
.section-desc { font-size: 17px; color: var(--text-light); max-width: 640px; margin: 0 auto; }

section { padding: 72px 0; }

/* ===== Platform ===== */
.platform { background: var(--gray-50); }
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.platform-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 32px 24px; box-shadow: var(--shadow);
  transition: var(--transition); border: 1px solid var(--border-light);
}
.platform-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.platform-icon { width: 44px; height: 44px; border-radius: 10px; background: rgba(0,85,204,0.08); color: var(--primary); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.platform-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.platform-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ===== Solutions ===== */
.solutions .container { max-width: 80%; }
.solution-cards { display: flex; flex-direction: column; gap: 32px; }
.solution-card {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  align-items: center; background: var(--white);
  border-radius: var(--radius-lg); padding: 36px;
  box-shadow: var(--shadow); border: 1px solid var(--border-light);
}
.solution-card.reverse { direction: rtl; }
.solution-card.reverse .solution-content { direction: ltr; }

.solution-content h3 { font-size: 28px; font-weight: 800; margin-bottom: 8px; }
.solution-subtitle { color: var(--primary); font-weight: 600; margin-bottom: 16px; font-size: 18px; }
.solution-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.solution-features li { font-size: 18px; color: var(--text-light); line-height: 1.7; padding-left: 16px; position: relative; }
.solution-features li::before {
  content: ''; position: absolute; left: 0; top: 12px;
  width: 6px; height: 6px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}
.solution-features li strong { color: var(--text); }

.btn-text {
  color: var(--primary); font-weight: 600; font-size: 18px;
  transition: var(--transition);
}
.btn-text:hover { gap: 12px; color: var(--primary-dark); }

.solution-image {
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-lg);
  min-height: 320px; display: flex; align-items: center; justify-content: center;
}

/* Abstract tech backgrounds for solution cards */
.park-bg {
  background: linear-gradient(160deg, #060D1F 0%, #0a1830 40%, #0c1a35 100%);
  position: relative; overflow: hidden;
}
.park-bg::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 25% 25%, rgba(0,130,255,0.15) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 60%, rgba(0,180,216,0.1) 0%, transparent 50%),
    radial-gradient(circle at 60% 35%, rgba(0,200,255,0.08) 0%, transparent 40%);
}
.park-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,150,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,150,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 40% 30%, black 40%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 40% 30%, black 40%, transparent 70%);
}

.comm-bg {
  background:
    radial-gradient(ellipse at 70% 30%, rgba(124,58,237,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 30% 70%, rgba(6,182,212,0.1) 0%, transparent 50%),
    linear-gradient(160deg, #0a0f1e 0%, #0f1028 50%, #0c1225 100%);
  position: relative;
}
.comm-bg::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(124,58,237,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
}
.comm-bg::after {
  content: ''; position: absolute; width: 180px; height: 180px;
  top: 50%; left: 50%; transform: translate(-50%,-50%);
  background: radial-gradient(circle, rgba(124,58,237,0.12), transparent 70%);
  border-radius: 50%;
}

.cwad-bg {
  background:
    radial-gradient(ellipse at 50% 30%, rgba(14,165,233,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 70%, rgba(56,189,248,0.08) 0%, transparent 50%),
    linear-gradient(160deg, #080f1e 0%, #0f1a30 50%, #0a1425 100%);
  position: relative;
}
.cwad-bg::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.04) 1px, transparent 1px);
  background-size: 36px 36px;
}
.cwad-bg::after {
  content: ''; position: absolute; width: 180px; height: 180px;
  top: 50%; left: 50%; transform: translate(-50%,-50%);
  background: radial-gradient(circle, rgba(14,165,233,0.12), transparent 70%);
  border-radius: 50%;
}

.solution-image img { width: 100%; height: 100%; object-fit: cover; }

.img-placeholder {
  display: flex; align-items: center; justify-content: center;
  width: 100%; min-height: 320px; background: linear-gradient(135deg, #E8F0FE, #DBEAFE);
  color: var(--primary); font-size: 16px; font-weight: 600;
  border-radius: var(--radius);
}

/* ===== Cases ===== */
.cases { 
  background: linear-gradient(180deg, #060D1F 0%, #0A1628 40%, #0D1F3C 100%);
  padding: 72px 0 80px;
  position: relative;
  overflow: hidden;
}
.cases::before {
  content: '';
  position: absolute; top: -30%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(ellipse, rgba(0,102,255,0.1) 0%, transparent 65%);
  pointer-events: none;
}
.cases::after {
  content: '';
  position: absolute; bottom: -20%; right: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,180,216,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cases .section-header .section-tag { background: rgba(0,180,216,0.12); color: #66CBFF; }
.cases .section-header .section-title { color: #fff; }
.cases .section-header .section-desc { color: rgba(226,232,240,0.65); }

.case-grid { 
  display: grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: 22px; 
  max-width: 1140px; 
  margin: 0 auto; 
  position: relative; 
  z-index: 1;
}
.case-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 60%, rgba(0,85,204,0.04) 100%);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  cursor: pointer;
  backdrop-filter: blur(2px);
}
.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,102,255,0.5);
  box-shadow: 0 14px 48px rgba(0,85,204,0.25), 0 0 0 1px rgba(0,102,255,0.15) inset;
  background: linear-gradient(180deg, rgba(255,255,255,0.07) 0%, rgba(0,85,204,0.06) 50%, rgba(0,180,216,0.08) 100%);
}
.case-card.featured {
  grid-column: span 2;
  background: linear-gradient(180deg, rgba(0,102,255,0.08) 0%, rgba(0,85,204,0.04) 50%, rgba(0,180,216,0.06) 100%);
  border-color: rgba(0,102,255,0.25);
}
.case-image {
  height: 220px;
  background: linear-gradient(135deg, #0A1628, #0D1F3C);
  overflow: hidden;
  position: relative;
}
.case-card.featured .case-image { height: 250px; }
.case-image img { 
  width: 100%; height: 100%; object-fit: cover; 
  transition: transform 0.6s ease;
}
.case-card:hover .case-image img { transform: scale(1.06); }
.case-image .img-placeholder { 
  min-height: 220px; font-size: 14px; 
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.2); background: linear-gradient(135deg, #0A1628, #0D1F3C);
}
/* Image gradient overlay - blends image into card bg */
.case-image::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 70px;
  background: linear-gradient(to top, rgba(6,13,31,0.95), rgba(10,22,40,0.5), transparent);
  pointer-events: none;
  z-index: 1;
}
.case-image::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(6,13,31,0.2) 100%);
  pointer-events: none;
  z-index: 1;
}
/* Case info area */
.case-info { 
  padding: 18px 22px 22px; 
  position: relative;
  z-index: 2;
}
.case-tag {
  display: inline-block; padding: 4px 12px;
  background: linear-gradient(135deg, rgba(0,102,255,0.2), rgba(0,180,216,0.12));
  color: #80B8FF;
  border: 1px solid rgba(0,102,255,0.2);
  border-radius: 50px; font-size: 11px; font-weight: 600; 
  letter-spacing: 0.6px; margin-bottom: 10px;
  text-transform: uppercase;
}
.case-info h4 { 
  font-size: 17px; font-weight: 700; color: #F0F4FF; 
  margin-bottom: 6px; letter-spacing: 0.3px;
  line-height: 1.3;
}
.case-desc { 
  font-size: 13px; color: rgba(200,210,230,0.55); 
  line-height: 1.65; margin-top: 4px;
}
.case-highlights {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: 12px; padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.case-highlights span {
  display: inline-block; 
  padding: 5px 10px; 
  background: rgba(0,180,216,0.1); 
  color: #73C8E8;
  border: 1px solid rgba(0,180,216,0.12);
  border-radius: 5px; 
  font-size: 11px;
}
/* Stats / metrics */
.case-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
  margin-top: 12px; padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.case-stat {
  text-align: center;
  padding: 10px 4px;
  background: linear-gradient(180deg, rgba(0,102,255,0.08), rgba(0,180,216,0.04));
  border: 1px solid rgba(0,102,255,0.1);
  border-radius: 8px;
  transition: all 0.3s;
}
.case-card:hover .case-stat {
  background: linear-gradient(180deg, rgba(0,102,255,0.12), rgba(0,180,216,0.06));
  border-color: rgba(0,102,255,0.2);
}
.case-stat-val { 
  display: block; font-size: 17px; font-weight: 800; 
  background: linear-gradient(135deg, #66CBFF, #00B4D8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.3px;
}
.case-stat-label { 
  display: block; font-size: 10px; color: rgba(180,200,220,0.45); 
  margin-top: 3px; letter-spacing: 0.3px;
}

/* Case card smooth entrance animation */
.case-card {
  opacity: 0; animation: caseFadeIn 0.5s ease forwards;
}
.case-card:nth-child(1) { animation-delay: 0.05s; }
.case-card:nth-child(2) { animation-delay: 0.1s; }
.case-card:nth-child(3) { animation-delay: 0.15s; }
.case-card:nth-child(4) { animation-delay: 0.2s; }
.case-card:nth-child(5) { animation-delay: 0.25s; }
.case-card:nth-child(6) { animation-delay: 0.3s; }
.case-card:nth-child(7) { animation-delay: 0.35s; }
.case-card:nth-child(8) { animation-delay: 0.4s; }
.case-card:nth-child(9) { animation-delay: 0.45s; }
@keyframes caseFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .case-card.featured { grid-column: span 2; }
}
@media (max-width: 768px) {
  .cases { padding: 48px 0 56px; }
  .case-grid { grid-template-columns: 1fr; gap: 16px; }
  .case-card.featured { grid-column: span 1; }
  .case-image { height: 200px; }
  .case-card.featured .case-image { height: 200px; }
}

/* ===== Strength ===== */
.strength { padding: 48px 0; background: linear-gradient(135deg, #060D1F, #0D1A35); }
.strength .section-header .section-tag { background: rgba(0,180,216,0.1); color: var(--accent); }
.strength .section-header .section-title { color: #fff; }
.strength-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; max-width: 1000px; margin: 0 auto; }
.strength-item { text-align: center; padding: 12px 8px; }
.strength-num { display: block; font-size: 22px; font-weight: 800; color: var(--accent); margin-bottom: 2px; }
.strength-label { font-size: 11px; color: var(--text-light); }

/* ===== About (卡片阶梯) ===== */
.about-content { display: block; }

/* about section 横向渐变背景 */
.about {
  background: linear-gradient(180deg, #fff 0%, rgba(0,85,204,0.02) 40%, rgba(0,180,216,0.05) 100%);
}

.timeline {
  position: relative;
  padding: 20px 0 60px;
  overflow-x: visible;
}

.timeline-svg { display: none; }

.timeline-track {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: nowrap;
  position: relative;
  z-index: 1;
}

.timeline-item:nth-child(n+9) { display: none; }

.timeline-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  min-width: 0;
  padding: 20px 10px 16px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid rgba(0,85,204,0.1);
  box-shadow: 0 2px 16px rgba(0,0,0,0.04);
  transition: transform .35s, box-shadow .35s;
  opacity: 0;
  animation: card-slide-up 0.5s ease-out forwards;
}
/* 逐级抬升 */
.timeline-item:nth-child(1) { margin-top: 200px; animation-delay: 0.05s; }
.timeline-item:nth-child(2) { margin-top: 170px; animation-delay: 0.12s; }
.timeline-item:nth-child(3) { margin-top: 140px; animation-delay: 0.19s; }
.timeline-item:nth-child(4) { margin-top: 110px; animation-delay: 0.26s; }
.timeline-item:nth-child(5) { margin-top: 75px;  animation-delay: 0.33s; }
.timeline-item:nth-child(6) { margin-top: 45px;  animation-delay: 0.40s; }
.timeline-item:nth-child(7) { margin-top: 20px;  animation-delay: 0.47s; }
.timeline-item:nth-child(8) { margin-top: 0;     animation-delay: 0.54s; }

.timeline-item:hover {
  animation: none;
  opacity: 1;
  transform: translateY(-8px);
  box-shadow: 0 8px 30px rgba(0,85,204,0.15);
  border-color: rgba(0,85,204,0.3);
}

@keyframes card-slide-up {
  0%   { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* 年份 — 顶部装饰线 */
.year {
  font-size: 26px; font-weight: 900;
  color: var(--primary);
  letter-spacing: 1px;
  text-align: center;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--primary);
  width: 50px;
}

.timeline-item p {
  font-size: 12px; color: var(--text-light);
  line-height: 1.7;
  text-align: center;
  margin: 0;
}

.about-image {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about-image img { width: 100%; }
.about-image .img-placeholder { min-height: 400px; }

.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 64px; }
.cert-item {
  text-align: center; padding: 24px;
  background: var(--gray-50); border-radius: var(--radius);
  border: 1px solid var(--border-light); font-size: 14px;
  line-height: 1.6; color: var(--text-light);
}
.cert-icon { color: var(--primary); display: flex; justify-content: center; margin-bottom: 8px; }

/* ===== Contact ===== */
.contact { background: var(--gray-50); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; flex-direction: column; gap: 4px; }
.contact-label { font-size: 13px; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.5px; }
.contact-value { font-size: 16px; font-weight: 600; }

.contact-form form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 14px 16px;
  border: 1px solid var(--border); border-radius: 10px;
  font-size: 15px; font-family: inherit; transition: var(--transition);
  background: var(--white);
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,85,204,0.12);
}
.contact-form textarea { resize: vertical; }

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark); color: var(--text-white);
  padding: 64px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand h4 { font-size: 20px; margin-bottom: 8px; }
.footer-brand p { font-size: 14px; color: var(--text-light); }
.footer-links h5 { font-size: 14px; margin-bottom: 16px; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.5px; }
.footer-links a { display: block; font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 10px; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); }
.qr-placeholder {
  width: 100px; height: 100px; background: rgba(255,255,255,0.1);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: var(--text-light); margin-top: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px; text-align: center;
  font-size: 13px; color: rgba(255,255,255,0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-card { grid-template-columns: 1fr; gap: 32px; padding: 32px; }
  .solution-card.reverse { direction: ltr; }
  .strength-grid { grid-template-columns: repeat(4, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .about-content { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-title { font-size: 40px; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 32px; }
  .hero-stats { gap: 24px; }
  .hero-stats .stat-item { min-width: 120px; }
  .stat-num { font-size: 28px; }
  .section-title { font-size: 28px; }
  .platform-grid { grid-template-columns: 1fr; }
  .strength-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .strength-num { font-size: 20px; }
  .case-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .nav.open { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--border); padding: 16px 24px; box-shadow: var(--shadow-lg); }
  .mobile-menu-btn { display: block; }
  .nav .dropdown-menu {
    position: static; transform: none; box-shadow: none; border: none;
    opacity: 1; visibility: visible; padding: 0 0 0 16px;
    background: transparent;
  }
  .nav .dropdown-menu a { font-size: 14px; padding: 8px 16px; }
  .hero { min-height: auto; padding: 100px 0 60px; }
  section { padding: 60px 0; }
}

/* ===== Credentials Carousel ===== */
.credentials {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F4FF 100%);
  padding-top: 80px; padding-bottom: 80px;
  position: relative; overflow: hidden;
}
.credentials::before {
  content: ''; position: absolute; top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,85,204,0.04), transparent);
  border-radius: 50%; pointer-events: none;
}

.credentials .container { max-width: 80%; }
.cred-wrap {
  display: flex; align-items: center; gap: 12px;
}
.cred-stage {
  overflow: hidden; flex: 1;
  position: relative;
}
.cred-track {
  display: flex; gap: 16px;
  transition: transform 0.4s cubic-bezier(0.25,0.1,0.25,1);
  padding: 12px 0;
}
.cred-item {
  flex: 0 0 calc((100% - 80px) / 6);
  background: #fff;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  padding: 10px;
  aspect-ratio: 3/4;
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  border: 1px solid #e8ecf1;
}
.cred-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,85,204,0.12);
  border-color: rgba(0,85,204,0.2);
}
.cred-item img { max-width: 100%; max-height: 100%; object-fit: contain; }

.cred-arrow {
  flex: 0 0 42px; width: 42px; height: 42px;
  border-radius: 50%; border: 1px solid #dde4ee;
  background: #fff; font-size: 22px; color: #475569;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all 0.3s ease; z-index: 2;
}
.cred-arrow:hover {
  background: var(--primary); color: #fff; border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(0,85,204,0.25);
}

@media (max-width: 768px) {
  .cred-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .cred-item { padding: 16px; }
}

/* ===== Architecture Diagram ===== */
.arch-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #fff 0%, #f0f4ff 40%, #e8f0fe 100%);
  position: relative;
  overflow: hidden;
}
.arch-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 700px; height: 700px;
  background: radial-gradient(ellipse, rgba(0,85,204,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.arch-diagram {
  /* max-width: 820px; */
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* Level blocks (top 4 tiers) */
.arch-level {
  width: 100%;
  text-align: center;
  padding: 22px 28px;
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}
.arch-level:hover {
  transform: translateY(-2px);
}
.arch-level-label {
  font-size: 18px;
  font-weight: 800;
  color: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 6px;
}
.arch-level-icon {
  font-size: 20px;
}
.arch-level-desc {
  font-size: 13px;
  color: #64748b;
  margin: 0;
}

/* Tier-specific backgrounds */
.arch-level-app {
  background: linear-gradient(135deg, rgba(99,102,241,0.06), rgba(139,92,246,0.04));
  border: 1px solid rgba(99,102,241,0.12);
  box-shadow: 0 1px 3px rgba(99,102,241,0.06);
}
.arch-level-app .arch-level-label { color: #4f46e5; }
.arch-level-app:hover { box-shadow: 0 4px 20px rgba(99,102,241,0.12); }

.arch-level-knowledge {
  background: linear-gradient(135deg, rgba(14,165,233,0.06), rgba(6,182,212,0.04));
  border: 1px solid rgba(14,165,233,0.12);
  box-shadow: 0 1px 3px rgba(14,165,233,0.06);
}
.arch-level-knowledge .arch-level-label { color: #0284c7; }
.arch-level-knowledge:hover { box-shadow: 0 4px 20px rgba(14,165,233,0.12); }

.arch-level-scene {
  background: linear-gradient(135deg, rgba(16,185,129,0.06), rgba(20,184,166,0.04));
  border: 1px solid rgba(16,185,129,0.12);
  box-shadow: 0 1px 3px rgba(16,185,129,0.06);
}
.arch-level-scene .arch-level-label { color: #059669; }
.arch-level-scene:hover { box-shadow: 0 4px 20px rgba(16,185,129,0.12); }

.arch-level-engine {
  background: linear-gradient(135deg, rgba(245,158,11,0.06), rgba(249,115,22,0.04));
  border: 1px solid rgba(245,158,11,0.12);
  box-shadow: 0 1px 3px rgba(245,158,11,0.06);
}
.arch-level-engine .arch-level-label { color: #d97706; }
.arch-level-engine:hover { box-shadow: 0 4px 20px rgba(245,158,11,0.12); }

/* Scene tags */
.arch-scene-tags {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}
.arch-scene-tags span {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(16,185,129,0.08);
  color: #059669;
  border: 1px solid rgba(16,185,129,0.15);
  transition: all 0.25s ease;
}
.arch-scene-tags span:hover {
  background: rgba(16,185,129,0.16);
  border-color: rgba(16,185,129,0.3);
}
.arch-scene-plus {
  background: rgba(16,185,129,0.15) !important;
  color: #047857 !important;
  font-weight: 700 !important;
}

/* Engine grid */
.arch-engine-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-top: 10px;
}
.arch-engine-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 6px;
  border-radius: 8px;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(245,158,11,0.1);
  transition: all 0.25s ease;
  cursor: default;
}
.arch-engine-item:hover {
  background: #fff;
  border-color: rgba(245,158,11,0.3);
  box-shadow: 0 2px 12px rgba(245,158,11,0.1);
  transform: translateY(-2px);
}
.arch-engine-icon {
  font-size: 20px;
}
.arch-engine-name {
  font-size: 12px;
  font-weight: 600;
  color: #475569;
}

/* Chevron connector between levels */
.arch-chevron {
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 8px solid #cbd5e1;
  margin: 2px 0;
}

/* Bridge connector */
.arch-bridge {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 6px 0;
}
.arch-bridge-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, #cbd5e1 30%, #cbd5e1 70%, transparent);
}
.arch-bridge-label {
  padding: 0 20px;
  font-size: 12px;
  font-weight: 600;
  color: #94a3b8;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

/* Core platform wrap */
.arch-core-wrap {
  width: 100%;
}

.arch-platform {
  background: linear-gradient(135deg, #0055CC, #0066FF);
  padding: 36px 40px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 8px 40px rgba(0,85,204,0.25), 0 0 0 4px rgba(0,85,204,0.08);
  transition: box-shadow 0.3s ease;
}
.arch-platform:hover {
  box-shadow: 0 12px 48px rgba(0,85,204,0.35), 0 0 0 6px rgba(0,85,204,0.12);
}
.arch-platform-label {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}
.arch-platform-subtitle {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 20px;
}
.arch-platform-capabilities {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}
.arch-cap-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  transition: all 0.25s ease;
  cursor: default;
}
.arch-cap-item:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.35);
  transform: translateY(-2px);
}
.arch-cap-icon {
  font-size: 22px;
}
.arch-cap-name {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

/* Device layer */
.arch-device {
  width: 100%;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 24px 28px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: box-shadow 0.3s ease;
}
.arch-device:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.arch-device-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 14px;
}
.arch-device-icon {
  font-size: 20px;
}
.arch-device-title {
  font-size: 16px;
  font-weight: 700;
  color: #334155;
}
.arch-device-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 14px;
}
.arch-device-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #334155;
  transition: all 0.25s ease;
  cursor: default;
}
.arch-device-item:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
  transform: translateY(-1px);
}
.arch-device-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.arch-protocols {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}
.arch-protocols span {
  padding: 4px 10px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  font-size: 11px;
  color: #64748b;
  font-weight: 500;
}

@media (max-width: 768px) {
  .arch-section { padding: 60px 0; }
  .arch-level { padding: 16px 14px; }
  .arch-level-label { font-size: 16px; }
  .arch-engine-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .arch-engine-item { padding: 8px 4px; }
  .arch-engine-icon { font-size: 18px; }
  .arch-engine-name { font-size: 11px; }
  .arch-platform { padding: 24px 20px; }
  .arch-platform-capabilities {
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
  }
  .arch-cap-item { padding: 10px 6px; }
  .arch-cap-icon { font-size: 18px; }
  .arch-cap-name { font-size: 11px; }
  .arch-platform-label { font-size: 18px; }
  .arch-device { padding: 16px 14px; }
  .arch-device-item { padding: 6px 12px; font-size: 12px; }
}

@media (max-width: 480px) {
  .arch-engine-grid { grid-template-columns: repeat(3, 1fr); }
  .arch-platform-capabilities { grid-template-columns: repeat(3, 1fr); }
  .arch-bridge-label { font-size: 11px; padding: 0 10px; }
}

/* ===== Gene Banner ===== */
.gene-banner { padding: 36px 0; background: var(--bg-dark); color: #fff; text-align: center; }
.gene-headline { font-size: 20px; font-weight: 800; margin-bottom: 4px; }
.gene-sub { font-size: 14px; color: var(--text-light); margin-bottom: 18px; }
.gene-cards { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.gene-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 24px 36px; text-align: center; }
.gene-num { display: block; font-size: 18px; font-weight: 800; color: var(--accent); margin-bottom: 6px; }
.gene-label { font-size: 13px; color: var(--text-light); }

@media (max-width: 768px) {
  .gene-cards { flex-direction: column; align-items: center; }
  .gene-headline { font-size: 18px; }
}

/* ===== Float Consult Button ===== */
.float-consult {
  position: fixed; bottom: 32px; right: 32px; z-index: 999;
  display: flex; align-items: center; gap: 8px;
  padding: 14px 22px;
  background: linear-gradient(135deg, #0066FF, #0055CC);
  color: #fff; border-radius: 50px;
  font-size: 14px; font-weight: 600;
  box-shadow: 0 4px 24px rgba(0,85,204,0.35);
  cursor: pointer; transition: transform 0.3s, box-shadow 0.3s;
}
.float-consult:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(0,85,204,0.5); }

@media (max-width: 768px) {
  .float-consult { bottom: 80px; right: 16px; padding: 12px 18px; font-size: 13px; }
}

/* ===== Industry Trends Timeline ===== */
.industry-trends {
  padding: 80px 0;
  background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
}

.trends-timeline {
  max-width: 800px;
  margin: 48px auto 0;
  position: relative;
  padding-left: 40px;
}

.trends-timeline::before {
  content: '';
  position: absolute;
  left: 15px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #0055CC 0%, #00B4D8 50%, #0055CC40 100%);
}

.tl-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 32px;
}

.tl-item:last-child { margin-bottom: 0; }

.tl-dot {
  position: absolute;
  left: -31px; top: 6px;
  width: 14px; height: 14px;
  background: #0055CC;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 3px #0055CC30;
}

.tl-item:last-child .tl-dot {
  background: linear-gradient(135deg, #0055CC, #00B4D8);
  box-shadow: 0 0 0 3px #00B4D840;
  animation: tl-pulse 2s infinite;
}

@keyframes tl-pulse {
  0%, 100% { box-shadow: 0 0 0 3px #00B4D840; }
  50% { box-shadow: 0 0 0 8px #00B4D810; }
}

.tl-year {
  display: inline-block;
  font-size: 13px; font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #0055CC, #0066FF);
  padding: 3px 14px; border-radius: 20px;
  margin-bottom: 8px;
}

.tl-content h4 {
  font-size: 17px; font-weight: 700;
  color: #0f172a;
  margin: 6px 0 4px;
}

.tl-content p {
  font-size: 14px; color: #475569;
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 768px) {
  .industry-trends { padding: 48px 0; }
  .trends-timeline { padding-left: 28px; }
  .tl-item { padding-left: 20px; margin-bottom: 28px; }
  .tl-dot { left: -19px; width: 12px; height: 12px; }
  .tl-content h4 { font-size: 15px; }
  .tl-content p { font-size: 13px; }
}

/* ===== Footer SEO ===== */
.footer-seo { text-align: center; padding: 16px 0; }
.footer-seo p { font-size: 11px; color: rgba(255,255,255,0.25); line-height: 1.8; }