/* ========== RESET & BASE ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #06060f;
  color: #e2e8f0;
  overflow-x: hidden;
  line-height: 1.6;
}
::selection { background: rgba(0, 212, 255, .35); color: #fff; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0a0a1a; }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #00d4ff, #7c3aed); border-radius: 3px; }

/* ========== FONTS ========== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ========== PARTICLES CANVAS ========== */
#particles-canvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}

/* ========== PAGE BANNER ========== */
.page-banner {
  position: relative; z-index: 1; min-height: 40vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 140px 24px 80px;
}
.page-banner .hero-glow {
  position: absolute; width: 500px; height: 500px; border-radius: 50%;
  filter: blur(120px); opacity: .2; pointer-events: none;
  top: 10%; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, #00d4ff 0%, #7c3aed 50%, transparent 70%);
  animation: glowPulse 6s ease-in-out infinite alternate;
}
.page-banner h1 {
  font-size: clamp(36px, 5vw, 56px); font-weight: 900; letter-spacing: -1px;
  margin-bottom: 16px; animation: fadeUp .8s .15s ease both;
}
.page-banner h1 .gradient-text {
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 50%, #f472b6 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-banner p {
  max-width: 600px; font-size: 16px; color: rgba(255,255,255,.45);
  animation: fadeUp .8s .3s ease both;
}
.page-banner .breadcrumb {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 24px; font-size: 13px; color: rgba(255,255,255,.3);
  animation: fadeUp .8s ease both;
}
.page-banner .breadcrumb a { color: rgba(0, 212, 255, .6); text-decoration: none; transition: color .3s; }
.page-banner .breadcrumb a:hover { color: #00d4ff; }
@keyframes glowPulse {
  0% { opacity: .12; transform: translateX(-50%) scale(1); }
  100% { opacity: .25; transform: translateX(-50%) scale(1.15); }
}

/* ========== NAV ========== */
nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 0 40px; height: 72px;
  display: flex; align-items: center; justify-content: space-between;
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  background: rgba(6, 6, 15, .6);
  border-bottom: 1px solid rgba(255,255,255,.04);
  transition: .35s ease;
}
nav.scrolled { background: rgba(6, 6, 15, .85); box-shadow: 0 4px 40px rgba(0,0,0,.5); }
.nav-logo {
  display: flex; align-items: center; gap: 12px;
  font-size: 22px; font-weight: 800; letter-spacing: 2px;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}
.nav-logo svg { width: 32px; height: 32px; }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  text-decoration: none; color: rgba(255,255,255,.6);
  font-size: 14px; font-weight: 500; letter-spacing: .5px;
  position: relative; transition: color .3s;
  padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, #00d4ff, #7c3aed);
  transition: width .35s ease;
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: #fff; }
.nav-links a.active::after { width: 100%; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.nav-toggle span { width: 24px; height: 2px; background: #e2e8f0; border-radius: 2px; transition: .3s; }

/* ========== HERO ========== */
.hero {
  position: relative; z-index: 1; min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  padding: 80px 24px 40px;
}
.hero-glow {
  position: absolute; width: 600px; height: 600px; border-radius: 50%;
  filter: blur(140px); opacity: .15; pointer-events: none;
  top: 0%; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, #00d4ff 0%, #7c3aed 50%, transparent 70%);
  animation: glowPulse 6s ease-in-out infinite alternate;
}
.hero-lightbox { width: 100%; max-width: 920px; margin-bottom: 56px; }
.lightbox-viewport { overflow: hidden; border-radius: 20px; }
.lightbox-track {
  display: flex; transition: transform .6s cubic-bezier(.65, .05, .36, 1);
}
.lightbox-slide {
  flex: 0 0 100%; min-width: 100%; display: flex; align-items: center; gap: 40px; padding: 24px 32px;
}
.lightbox-left { flex: 0 0 38%; }
.lightbox-right { flex: 1; display: flex; justify-content: center; }
.lightbox-badge {
  display: inline-block; font-size: 13px; font-weight: 600;
  padding: 5px 14px; border-radius: 20px; margin-bottom: 14px;
  background: rgba(0, 212, 255, .08); color: #00d4ff;
  border: 1px solid rgba(0, 212, 255, .12);
}
.lightbox-title {
  font-size: clamp(26px, 3.5vw, 40px); font-weight: 900; margin-bottom: 10px;
  background: linear-gradient(135deg, #fff 0%, #00d4ff 50%, #7c3aed 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.lightbox-desc { font-size: 14px; color: rgba(255,255,255,.5); margin-bottom: 16px; line-height: 1.6; }
.lightbox-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.lightbox-tags span {
  font-size: 12px; padding: 4px 12px; border-radius: 20px;
  background: rgba(255,255,255,.04); color: rgba(255,255,255,.5);
  border: 1px solid rgba(255,255,255,.06);
}
.lightbox-dots { display: flex; justify-content: center; gap: 10px; margin-top: 16px; }
.lightbox-dot {
  width: 8px; height: 8px; border-radius: 50%; cursor: pointer;
  background: rgba(255,255,255,.15); transition: all .3s;
}
.lightbox-dot.active { width: 28px; border-radius: 4px; background: linear-gradient(90deg, #00d4ff, #7c3aed); }

.hero-text { text-align: center; flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 20px; border-radius: 100px; font-size: 13px; font-weight: 500;
  background: rgba(0, 212, 255, .08); border: 1px solid rgba(0, 212, 255, .15);
  color: #00d4ff; letter-spacing: 1px; margin-bottom: 20px;
  animation: fadeUp .8s ease both;
}
.hero-text h1 {
  font-size: clamp(40px, 7vw, 72px); font-weight: 900; line-height: 1.1;
  letter-spacing: -2px; margin-bottom: 18px;
  animation: fadeUp .8s .15s ease both;
}
.hero-text h1 .gradient-text {
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 50%, #f472b6 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-text p {
  max-width: 620px; font-size: 16px; color: rgba(255,255,255,.5);
  font-weight: 400; line-height: 1.6; margin: 0 auto 28px;
  animation: fadeUp .8s .3s ease both;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; animation: fadeUp .8s .45s ease both; }
.scroll-indicator {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 12px; color: rgba(255,255,255,.25); animation: fadeUp 1s .8s ease both;
}
.scroll-dot {
  width: 6px; height: 6px; border-radius: 50%; background: #00d4ff;
  animation: scrollDown 1.8s ease infinite;
}
@keyframes scrollDown { 0%,100% { transform: translateY(0); opacity: 1; } 50% { transform: translateY(10px); opacity: .3; } }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 36px; border-radius: 100px; font-size: 15px; font-weight: 600;
  text-decoration: none; transition: all .35s; cursor: pointer; border: none;
}
.btn-primary {
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  color: #fff; box-shadow: 0 4px 30px rgba(0, 212, 255, .25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 50px rgba(0, 212, 255, .35); }
.btn-outline {
  background: transparent; color: #e2e8f0;
  border: 1px solid rgba(255,255,255,.15);
}
.btn-outline:hover { border-color: #00d4ff; color: #00d4ff; transform: translateY(-2px); }
.scroll-indicator {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,.25); font-size: 12px; letter-spacing: 2px;
  animation: fadeUp .8s .6s ease both;
}
.scroll-dot {
  width: 2px; height: 32px; border-radius: 2px;
  background: linear-gradient(180deg, #00d4ff, transparent);
  animation: scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot { 0% { opacity: 0; transform: scaleY(.3); } 50% { opacity: 1; } 100% { opacity: 0; transform: scaleY(1); } }

/* ========== SECTIONS COMMON ========== */
section { position: relative; z-index: 1; padding: 120px 40px; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 72px; }
.section-tag {
  display: inline-block; padding: 6px 18px; border-radius: 100px;
  font-size: 12px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase;
  background: rgba(0, 212, 255, .06); border: 1px solid rgba(0, 212, 255, .1);
  color: #00d4ff; margin-bottom: 20px;
}
.section-header h2 {
  font-size: clamp(32px, 4vw, 48px); font-weight: 800; letter-spacing: -1px;
  margin-bottom: 16px; line-height: 1.15;
}
.section-header p { font-size: 16px; color: rgba(255,255,255,.4); line-height: 1.7; }

/* ========== SOFTWARE PRODUCTS ========== */
.products-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px; max-width: 1200px; margin: 0 auto;
}
.product-card {
  position: relative; border-radius: 20px; padding: 40px 32px;
  background: linear-gradient(145deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  border: 1px solid rgba(255,255,255,.04);
  backdrop-filter: blur(12px); transition: all .5s cubic-bezier(.23,1,.32,1);
  cursor: default; overflow: hidden;
}
.product-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(0, 212, 255, .04), rgba(124, 58, 237, .04));
  opacity: 0; transition: opacity .5s;
}
.product-card:hover { transform: translateY(-8px); border-color: rgba(0, 212, 255, .15); box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.product-card:hover::before { opacity: 1; }
.product-card .icon {
  width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px; position: relative;
  background: linear-gradient(135deg, rgba(0, 212, 255, .1), rgba(124, 58, 237, .1));
  border: 1px solid rgba(255,255,255,.06);
}
.product-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; position: relative; }
.product-card p { font-size: 14px; color: rgba(255,255,255,.4); line-height: 1.7; position: relative; }
.product-card .tag-group { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; position: relative; }
.product-card .tag {
  padding: 4px 14px; border-radius: 100px; font-size: 12px; font-weight: 500;
  background: rgba(0, 212, 255, .06); border: 1px solid rgba(0, 212, 255, .08);
  color: rgba(0, 212, 255, .7);
}

/* ========== AI TECH SHARING ========== */
.tech-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px; max-width: 1200px; margin: 0 auto;
}
.tech-card {
  border-radius: 20px; padding: 36px; position: relative;
  background: linear-gradient(145deg, rgba(255,255,255,.02), transparent);
  border: 1px solid rgba(255,255,255,.04);
  transition: all .5s cubic-bezier(.23,1,.32,1); cursor: default;
  overflow: hidden;
}
.tech-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(124, 58, 237, .3), transparent);
  opacity: 0; transition: opacity .5s;
}
.tech-card:hover { transform: translateY(-6px); border-color: rgba(124, 58, 237, .15); box-shadow: 0 16px 48px rgba(0,0,0,.3); }
.tech-card:hover::after { opacity: 1; }
.tech-card .date {
  font-size: 12px; color: rgba(255,255,255,.25); letter-spacing: 1px; margin-bottom: 16px;
}
.tech-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; line-height: 1.4; }
.tech-card p { font-size: 14px; color: rgba(255,255,255,.4); line-height: 1.7; margin-bottom: 20px; }
.tech-card .read-more {
  font-size: 13px; color: #7c3aed; font-weight: 600; text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px; transition: gap .3s;
}
.tech-card .read-more:hover { gap: 12px; }

/* ========== AI PHOTOGRAPHY ========== */
.photo-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  max-width: 1200px; margin: 0 auto;
}
.photo-item {
  position: relative; border-radius: 16px; overflow: hidden;
  aspect-ratio: 4/3; cursor: pointer;
  background: linear-gradient(145deg, rgba(255,255,255,.02), transparent);
  border: 1px solid rgba(255,255,255,.04);
  transition: all .5s cubic-bezier(.23,1,.32,1);
}
.photo-item:nth-child(2) { aspect-ratio: 3/4; grid-row: span 2; }
.photo-item:nth-child(5) { aspect-ratio: 3/4; grid-row: span 2; }
.photo-item .photo-bg {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s cubic-bezier(.23,1,.32,1);
}
.photo-item:hover { border-color: rgba(0, 212, 255, .15); transform: translateY(-4px); box-shadow: 0 16px 48px rgba(0,0,0,.4); }
.photo-item:hover .photo-bg { transform: scale(1.08); }
.photo-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 24px; background: linear-gradient(0deg, rgba(6,6,15,.9) 0%, transparent 100%);
  opacity: 0; transform: translateY(12px); transition: all .4s ease;
}
.photo-item:hover .photo-overlay { opacity: 1; transform: translateY(0); }
.photo-overlay h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.photo-overlay p { font-size: 13px; color: rgba(255,255,255,.5); }

/* ========== SOLUTIONS ========== */
.solutions-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px; max-width: 1200px; margin: 0 auto;
}
.solution-card {
  border-radius: 20px; padding: 40px 32px; text-align: center;
  background: linear-gradient(145deg, rgba(255,255,255,.02), transparent);
  border: 1px solid rgba(255,255,255,.04);
  transition: all .5s cubic-bezier(.23,1,.32,1); cursor: default;
  position: relative; overflow: hidden;
}
.solution-card::before {
  content: ''; position: absolute; inset: 0; border-radius: 20px; opacity: 0;
  background: linear-gradient(145deg, rgba(0, 212, 255, .03), rgba(124, 58, 237, .03));
  transition: opacity .5s;
}
.solution-card:hover { transform: translateY(-8px); border-color: rgba(0, 212, 255, .12); box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.solution-card:hover::before { opacity: 1; }
.solution-card .s-icon {
  font-size: 40px; margin-bottom: 20px; position: relative;
  display: inline-block;
}
.solution-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; position: relative; }
.solution-card p { font-size: 14px; color: rgba(255,255,255,.4); line-height: 1.7; position: relative; }
.solution-card .s-list {
  list-style: none; margin-top: 20px; position: relative;
  text-align: left;
}
.solution-card .s-list li {
  padding: 8px 0; font-size: 14px; color: rgba(255,255,255,.5);
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,.03);
}
.solution-card .s-list li::before {
  content: '\203A'; font-size: 18px; color: #00d4ff; font-weight: 700;
}

/* ========== DOWNLOAD SECTION ========== */
.download-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px; max-width: 1200px; margin: 0 auto;
}
.download-card {
  border-radius: 20px; padding: 32px; position: relative;
  background: linear-gradient(145deg, rgba(255,255,255,.02), transparent);
  border: 1px solid rgba(255,255,255,.04);
  transition: all .5s cubic-bezier(.23,1,.32,1); cursor: default;
  display: flex; flex-direction: column;
}
.download-card:hover { transform: translateY(-6px); border-color: rgba(0, 212, 255, .12); box-shadow: 0 16px 48px rgba(0,0,0,.3); }
.download-card .d-header {
  display: flex; align-items: flex-start; gap: 16px; margin-bottom: 16px;
}
.download-card .d-icon {
  width: 48px; height: 48px; border-radius: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  background: linear-gradient(135deg, rgba(0, 212, 255, .1), rgba(124, 58, 237, .1));
  border: 1px solid rgba(255,255,255,.06);
}
.download-card .d-info { flex: 1; min-width: 0; }
.download-card .d-info h3 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.download-card .d-info .desc { font-size: 13px; color: rgba(255,255,255,.4); line-height: 1.5; }
.download-card .d-meta {
  display: flex; gap: 16px; margin: 12px 0 16px; padding: 10px 0;
  border-top: 1px solid rgba(255,255,255,.03);
  border-bottom: 1px solid rgba(255,255,255,.03);
}
.download-card .d-meta span {
  font-size: 12px; color: rgba(255,255,255,.3);
  display: flex; align-items: center; gap: 4px;
}
.download-card .d-meta span strong { color: rgba(255,255,255,.6); font-weight: 600; }
.download-card .d-systems { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.download-card .d-systems .sys-tag {
  padding: 3px 12px; border-radius: 100px; font-size: 11px; font-weight: 500;
  background: rgba(0, 212, 255, .05); border: 1px solid rgba(0, 212, 255, .08);
  color: rgba(0, 212, 255, .6);
}
.download-card .d-actions {
  display: flex; gap: 10px; margin-top: auto;
}
.download-card .d-actions .btn-download {
  flex: 1; padding: 10px 20px; border-radius: 100px; font-size: 13px; font-weight: 600;
  text-decoration: none; text-align: center; transition: all .3s;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  color: #fff; border: none; cursor: pointer;
}
.download-card .d-actions .btn-download:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(0, 212, 255, .25); }
.download-card .d-actions .btn-other {
  padding: 10px 16px; border-radius: 100px; font-size: 13px; font-weight: 500;
  text-decoration: none; text-align: center; transition: all .3s;
  background: transparent; color: rgba(255,255,255,.5);
  border: 1px solid rgba(255,255,255,.08);
}
.download-card .d-actions .btn-other:hover { border-color: rgba(0, 212, 255, .2); color: #00d4ff; }

/* ========== ABOUT PAGE ========== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; max-width: 1200px; margin: 0 auto; align-items: center;
}
.about-image {
  border-radius: 20px; overflow: hidden; aspect-ratio: 4/3;
  background: linear-gradient(145deg, rgba(0, 212, 255, .03), rgba(124, 58, 237, .03));
  border: 1px solid rgba(255,255,255,.04);
  display: flex; align-items: center; justify-content: center;
}
.about-content h3 { font-size: 28px; font-weight: 800; margin-bottom: 20px; }
.about-content p { font-size: 15px; color: rgba(255,255,255,.45); line-height: 1.8; margin-bottom: 16px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  max-width: 1200px; margin: 80px auto 0;
}
.stat-card { text-align: center; padding: 32px 20px; border-radius: 16px;
  background: linear-gradient(145deg, rgba(255,255,255,.02), transparent);
  border: 1px solid rgba(255,255,255,.04);
}
.stat-card .num { font-size: 36px; font-weight: 900;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-card .label { font-size: 14px; color: rgba(255,255,255,.4); margin-top: 8px; }
.team-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px; max-width: 1200px; margin: 0 auto;
}
.team-card {
  border-radius: 20px; padding: 32px 24px; text-align: center;
  background: linear-gradient(145deg, rgba(255,255,255,.02), transparent);
  border: 1px solid rgba(255,255,255,.04);
  transition: all .5s cubic-bezier(.23,1,.32,1);
}
.team-card:hover { transform: translateY(-6px); border-color: rgba(0, 212, 255, .12); box-shadow: 0 16px 48px rgba(0,0,0,.3); }
.team-card .avatar {
  width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px;
  background: linear-gradient(135deg, rgba(0, 212, 255, .1), rgba(124, 58, 237, .1));
  border: 2px solid rgba(0, 212, 255, .1);
}
.team-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.team-card .role { font-size: 13px; color: rgba(0, 212, 255, .6); margin-bottom: 8px; }
.team-card p { font-size: 13px; color: rgba(255,255,255,.35); line-height: 1.6; }

/* ========== FOOTER ========== */
footer {
  position: relative; z-index: 1; padding: 80px 40px 40px;
  border-top: 1px solid rgba(255,255,255,.03);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; max-width: 1200px; margin: 0 auto 60px;
}
.footer-brand h3 {
  font-size: 24px; font-weight: 800; margin-bottom: 16px;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.35); line-height: 1.7; max-width: 340px; }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 20px; color: #e2e8f0; letter-spacing: 1px; }
.footer-col a {
  display: block; font-size: 14px; color: rgba(255,255,255,.35); text-decoration: none;
  padding: 6px 0; transition: color .3s;
}
.footer-col a:hover { color: #00d4ff; }
.footer-bottom {
  max-width: 1200px; margin: 0 auto; padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.03);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: rgba(255,255,255,.2);
}

/* ========== ANIMATIONS ========== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; transform: translateY(40px); transition: all .8s cubic-bezier(.23,1,.32,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .photo-item:nth-child(2), .photo-item:nth-child(5) { grid-row: span 1; aspect-ratio: 4/3; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: rgba(6,6,15,.95);
    backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,.04);
    padding: 16px 0; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 24px; font-size: 15px; }
  .nav-toggle { display: flex; }
  section { padding: 80px 20px; }
  .hero { padding: 100px 20px 60px; }
  .page-banner { padding: 120px 20px 60px; min-height: 30vh; }
  .photo-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .products-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .about-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .team-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .photo-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .team-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}

/* ========== AUTH NAV BUTTON ========== */
.nav-auth-btn {
  padding: 8px 24px; border-radius: 100px; font-size: 14px; font-weight: 600;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  color: #fff; border: none; cursor: pointer; transition: all .3s; white-space: nowrap;
}
.nav-auth-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(0, 212, 255, .25); }

/* ========== NAV USER ========== */
.nav-user { position: relative; }
.nav-user-avatar {
  width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; cursor: pointer; transition: all .3s;
  background: linear-gradient(135deg, rgba(0, 212, 255, .15), rgba(124, 58, 237, .15));
  border: 1px solid rgba(0, 212, 255, .2); color: #00d4ff; overflow: hidden; flex-shrink: 0;
}
img.nav-user-avatar { object-fit: cover; }
.nav-user-menu {
  position: absolute; top: 100%; right: 0; margin-top: 12px;
  min-width: 200px; border-radius: 16px; padding: 16px;
  background: rgba(10, 10, 26, .95); backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.06); box-shadow: 0 16px 48px rgba(0,0,0,.4);
  opacity: 0; visibility: hidden; transform: translateY(-8px); transition: all .3s; z-index: 100;
}
.nav-user:hover .nav-user-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-user-info { font-size: 13px; color: rgba(255,255,255,.5); margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,.06); }
.nav-logout-btn {
  width: 100%; padding: 8px 16px; border-radius: 8px; font-size: 13px; font-weight: 500;
  background: rgba(255, 100, 100, .08); border: 1px solid rgba(255, 100, 100, .15);
  color: #ff6b6b; cursor: pointer; transition: all .3s;
}
.nav-logout-btn:hover { background: rgba(255, 100, 100, .15); }

/* ========== AUTH MODAL ========== */
.auth-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 9999; display: flex; align-items: center; justify-content: center;
  background: rgba(6, 6, 15, .7); backdrop-filter: blur(8px);
  opacity: 0; visibility: hidden; transition: all .35s ease;
}
.auth-overlay.open { opacity: 1; visibility: visible; }
.auth-modal {
  width: 100%; max-width: 400px; margin: 20px; padding: 40px 36px;
  border-radius: 24px; position: relative;
  background: linear-gradient(145deg, rgba(20, 20, 40, .95), rgba(10, 10, 26, .95));
  border: 1px solid rgba(255,255,255,.06); box-shadow: 0 32px 80px rgba(0,0,0,.5);
  transform: translateY(24px) scale(.96); transition: all .4s cubic-bezier(.23,1,.32,1);
}
.auth-overlay.open .auth-modal { transform: translateY(0) scale(1); }
.auth-modal::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; border-radius: 24px 24px 0 0;
  background: linear-gradient(90deg, transparent, #00d4ff, #7c3aed, transparent);
}
.auth-close {
  position: absolute; top: 16px; right: 16px; width: 32px; height: 32px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.04); border: none; color: rgba(255,255,255,.4);
  font-size: 20px; cursor: pointer; transition: all .3s;
}
.auth-close:hover { background: rgba(255,255,255,.08); color: #fff; }
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-logo svg { width: 40px; height: 40px; }
.auth-logo h2 {
  font-size: 20px; font-weight: 700; margin-top: 12px;
  background: linear-gradient(135deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* Auth Tabs */
.auth-tabs { display: flex; gap: 4px; margin-bottom: 28px; padding: 4px;
  background: rgba(255,255,255,.03); border-radius: 100px; border: 1px solid rgba(255,255,255,.04); }
.auth-tab {
  flex: 1; padding: 10px; border-radius: 100px; font-size: 14px; font-weight: 600;
  background: transparent; border: none; color: rgba(255,255,255,.4); cursor: pointer; transition: all .3s;
}
.auth-tab.active { background: linear-gradient(135deg, #00d4ff, #7c3aed); color: #fff; box-shadow: 0 2px 12px rgba(0, 212, 255, .2); }

/* Auth Forms */
.auth-form { display: none; flex-direction: column; gap: 16px; }
.auth-form.active { display: flex; animation: fadeUp .4s ease; }
.auth-field { position: relative; }
.auth-field input {
  width: 100%; padding: 14px 18px; border-radius: 12px; font-size: 15px;
  background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06);
  color: #e2e8f0; outline: none; transition: all .3s; box-sizing: border-box;
}
.auth-field input::placeholder { color: rgba(255,255,255,.25); }
.auth-field input:focus { border-color: rgba(0, 212, 255, .3); background: rgba(0, 212, 255, .02); }
.auth-code-field { display: flex; gap: 10px; }
.auth-code-field input { flex: 1; }
.auth-send-code {
  padding: 14px 18px; border-radius: 12px; font-size: 13px; font-weight: 600; white-space: nowrap;
  background: rgba(0, 212, 255, .08); border: 1px solid rgba(0, 212, 255, .12);
  color: #00d4ff; cursor: pointer; transition: all .3s;
}
.auth-send-code:hover:not(:disabled) { background: rgba(0, 212, 255, .12); }
.auth-send-code:disabled { opacity: .5; cursor: not-allowed; }
.auth-submit {
  margin-top: 4px; padding: 14px; border-radius: 12px; font-size: 15px; font-weight: 700;
  background: linear-gradient(135deg, #00d4ff, #7c3aed); color: #fff;
  border: none; cursor: pointer; transition: all .3s;
}
.auth-submit:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(0, 212, 255, .25); }
.auth-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }

/* Auth Divider */
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 24px 0;
  color: rgba(255,255,255,.2); font-size: 13px; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: rgba(255,255,255,.06); }

/* Social Login Buttons */
.auth-social { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 4px; }

/* ========== DEMO WINDOW (shared) ========== */
.demo-window {
  width: 100%; max-width: 440px; border-radius: 14px; overflow: hidden;
  background: rgba(8, 8, 20, .9); border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 16px 50px rgba(0,0,0,.4);
}
.demo-titlebar {
  display: flex; gap: 8px; padding: 10px 14px;
  background: rgba(255,255,255,.03); border-bottom: 1px solid rgba(255,255,255,.04);
}
.demo-titlebar span { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,.1); }
.demo-titlebar span:nth-child(1) { background: #ff5f57; }
.demo-titlebar span:nth-child(2) { background: #febc2e; }
.demo-titlebar span:nth-child(3) { background: #28c840; }
.demo-content { padding: 16px; }

/* 影Go Demo - Real Images */
.demo-img-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.demo-img-wrap { position: relative; width: 140px; height: 105px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.demo-img-real { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
.demo-img-label {
  position: absolute; bottom: 4px; left: 4px;
  font-size: 10px; color: rgba(255,255,255,.8); padding: 2px 8px; border-radius: 10px;
  background: rgba(0,0,0,.55); backdrop-filter: blur(4px);
}
.demo-arrow { font-size: 20px; color: #00d4ff; animation: arrowPulse 1.5s ease infinite; }
@keyframes arrowPulse { 0%,100% { transform: translateX(0); } 50% { transform: translateX(4px); } }
.demo-tools { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.demo-tool {
  font-size: 11px; padding: 4px 10px; border-radius: 6px;
  background: rgba(255,255,255,.03); color: rgba(255,255,255,.4);
  border: 1px solid rgba(255,255,255,.04); transition: all .3s;
}
.demo-tool.active { background: rgba(0,212,255,.08); color: #00d4ff; border-color: rgba(0,212,255,.15); }
.demo-progress { height: 3px; border-radius: 2px; background: rgba(255,255,255,.06); overflow: hidden; }
.demo-progress-bar {
  height: 100%; width: 0; border-radius: 2px;
  background: linear-gradient(90deg, #00d4ff, #7c3aed);
  animation: progressFill 2.5s ease infinite;
}
@keyframes progressFill { 0% { width: 0; } 60% { width: 100%; } 100% { width: 100%; opacity: 0; } }

/* 火眼金睛 Demo */
.demo-searchbar {
  display: flex; align-items: center; gap: 8px; padding: 10px 14px; margin-bottom: 12px;
  border-radius: 8px; background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
}
.demo-search-icon { font-size: 14px; }
.demo-search-text { font-size: 13px; color: #e2e8f0; }
.demo-cursor { color: #00d4ff; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }
.demo-results { display: flex; flex-direction: column; gap: 6px; margin-bottom: 8px; }
@keyframes resultAppear { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }
.demo-result-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 12px;
  border-radius: 6px; background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.03); transition: all .3s; opacity: 0;
}
.lightbox-slide .demo-result-item { animation: resultAppear .4s ease both; }
.demo-result-item:hover { background: rgba(0,212,255,.04); border-color: rgba(0,212,255,.08); }
.demo-result-icon { font-size: 16px; flex-shrink: 0; }
.demo-result-info { flex: 1; min-width: 0; }
.demo-result-name { font-size: 12px; color: #e2e8f0; margin-bottom: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.demo-result-path { font-size: 10px; color: rgba(255,255,255,.3); }
.demo-result-size { font-size: 10px; color: rgba(0,212,255,.5); flex-shrink: 0; }
.demo-search-status { font-size: 11px; color: rgba(255,255,255,.3); text-align: center; padding: 2px; }
.lightbox-slide .demo-search-status { animation: resultAppear .6s .6s ease both; }

/* Placeholder Demo */
.demo-placeholder {
  text-align: center; padding: 50px 20px;
  border: 2px dashed rgba(255,255,255,.06); border-radius: 16px; width: 100%; max-width: 440px;
}
.demo-placeholder-icon { font-size: 48px; margin-bottom: 12px; }
.demo-placeholder p { font-size: 16px; color: rgba(255,255,255,.3); }

@media (max-width: 768px) {
  .lightbox-slide { flex-direction: column; gap: 16px; text-align: center; padding: 16px; }
  .lightbox-left { flex: none; width: 100%; }
  .lightbox-right { width: 100%; }
  .lightbox-tags { justify-content: center; }
  .hero-text h1 { font-size: clamp(28px, 8vw, 42px); }
  .demo-img-wrap { width: 110px; height: 85px; }
}
.auth-social-btn {
  width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); color: rgba(255,255,255,.5);
  cursor: pointer; transition: all .3s; text-decoration: none; flex-shrink: 0;
}
.auth-social-btn:hover { background: rgba(255,255,255,.08); transform: translateY(-2px); color: #fff; }
.auth-social-btn svg { width: 22px; height: 22px; }
.auth-social-btn.wx:hover { color: #07c160; border-color: rgba(7, 193, 96, .25); }
.auth-social-btn.qq:hover { color: #12b7f5; border-color: rgba(18, 183, 245, .25); }
.auth-social-btn.github:hover { color: #fff; border-color: rgba(255,255,255,.2); }
.auth-social-btn.more:hover { color: #00d4ff; border-color: rgba(0, 212, 255, .25); }

/* Auth Message */
.auth-message { margin-top: 4px; padding: 10px 16px; border-radius: 10px; font-size: 13px;
  display: none; align-items: center; gap: 8px; }
.auth-message.show { display: flex; animation: fadeUp .3s ease; }
.auth-message.error { background: rgba(255, 100, 100, .08); border: 1px solid rgba(255, 100, 100, .12); color: #ff8888; }
.auth-message.success { background: rgba(0, 200, 100, .08); border: 1px solid rgba(0, 200, 100, .12); color: #66dd88; }

/* Auth Responsive */
@media (max-width: 480px) {
  .auth-modal { margin: 16px; padding: 32px 24px; }
  .nav-auth-btn { padding: 6px 16px; font-size: 13px; }
}