/* =============================================
   欧义官网 - 多设备安全资产守护
   配色：深色(#0a0e1c) + 守护蓝(#2563eb) + 安全金(#f59e0b) + 体验绿(#10b981) + 紫(#7c3aed) + 白
   ============================================= */

/* ===== CSS Variables ===== */
:root {
  --bg-dark: #0a0e1c;
  --bg-card: #111827;
  --bg-card-hover: #1a2235;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --blue-dark: #1d4ed8;
  --gold: #f59e0b;
  --gold-light: #fbbf24;
  --green: #10b981;
  --green-light: #34d399;
  --purple: #7c3aed;
  --purple-light: #8b5cf6;
  --white: #ffffff;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --transition: 0.3s ease;
}

/* ===== Reset ===== */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-dark);
  color: var(--gray-300);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

/* ===== Utility ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section-title { font-size: 2.25rem; font-weight: 700; color: var(--white); text-align: center; margin-bottom: 0.75rem; }
.section-subtitle { font-size: 1.1rem; color: var(--gray-400); text-align: center; margin-bottom: 3rem; max-width: 700px; margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); }
  50% { box-shadow: 0 0 0 18px rgba(37, 99, 235, 0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes scanLine {
  0% { top: -10%; }
  100% { top: 110%; }
}
@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px rgba(37, 99, 235, 0.3), 0 0 20px rgba(37, 99, 235, 0.1); }
  50% { box-shadow: 0 0 10px rgba(37, 99, 235, 0.6), 0 0 40px rgba(37, 99, 235, 0.2); }
}
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* ===== Header & Navigation ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10, 14, 28, 0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}
.site-header.scrolled { background: rgba(10, 14, 28, 0.95); box-shadow: var(--shadow); }
.site-header.header-hidden { transform: translateY(-100%); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-text { font-size: 1.5rem; font-weight: 800; color: var(--white); letter-spacing: 2px; }
.logo-text span { color: var(--blue); }
.logo-shield {
  width: 36px; height: 42px; background: linear-gradient(135deg, var(--blue), var(--purple));
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}
.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-menu a {
  color: var(--gray-400); font-size: 0.95rem; font-weight: 500; transition: var(--transition); position: relative;
}
.nav-menu a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--blue); transition: width var(--transition);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--white); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.nav-download {
  padding: 8px 20px; background: linear-gradient(135deg, var(--blue), var(--purple));
  color: var(--white) !important; border-radius: 8px; font-weight: 600 !important;
  transition: var(--transition) !important;
}
.nav-download:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4); }
.nav-download::after { display: none !important; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { display: block; width: 28px; height: 2px; background: var(--white); transition: var(--transition); border-radius: 2px; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Buttons ===== */
.btn {
  display: inline-block; padding: 14px 36px; border-radius: 10px; font-weight: 600; font-size: 1rem;
  transition: var(--transition); text-align: center; cursor: pointer; border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: var(--white); box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5); }
.btn-gold { background: linear-gradient(135deg, var(--gold), var(--gold-light)); color: #000; font-weight: 700; }
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5); }
.btn-outline {
  border: 2px solid var(--blue); color: var(--blue); background: transparent;
}
.btn-outline:hover { background: var(--blue); color: var(--white); transform: translateY(-3px); }
.btn-lg { padding: 18px 48px; font-size: 1.15rem; border-radius: 12px; }
.cta-btn { animation: pulse 2s infinite; }

/* ===== Hero Section ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 80px; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(124, 58, 237, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(16, 185, 129, 0.08) 0%, transparent 40%);
}
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 600;
  background: rgba(37, 99, 235, 0.15); color: var(--blue-light); border: 1px solid rgba(37, 99, 235, 0.3);
  margin-bottom: 20px;
}
.hero h1 { font-size: 3rem; font-weight: 800; color: var(--white); line-height: 1.2; margin-bottom: 20px; }
.hero h1 span { background: linear-gradient(135deg, var(--blue-light), var(--purple-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-desc { font-size: 1.15rem; color: var(--gray-400); margin-bottom: 32px; line-height: 1.8; max-width: 520px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
  position: relative; display: flex; align-items: center; justify-content: center;
}
.hero-img {
  border-radius: 16px; box-shadow: var(--shadow-lg); animation: float 6s ease-in-out infinite;
}
.hero-glow {
  position: absolute; width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.2) 0%, transparent 70%);
  animation: glow 4s ease-in-out infinite; z-index: -1;
}

/* ===== Stats Bar ===== */
.stats-bar {
  background: var(--bg-card); border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 32px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-item { padding: 16px; }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--white); margin-bottom: 6px; }
.stat-number.blue { color: var(--blue); }
.stat-number.gold { color: var(--gold); }
.stat-number.green { color: var(--green); }
.stat-number.purple { color: var(--purple); }
.stat-label { font-size: 0.9rem; color: var(--gray-500); }

/* ===== Features Section ===== */
.features { padding: 100px 0; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.feature-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px; padding: 36px 28px; transition: var(--transition);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--purple), var(--green));
  transform: scaleX(0); transition: transform 0.4s ease;
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { transform: translateY(-8px); box-shadow: 0 12px 30px rgba(0,0,0,0.4); border-color: rgba(37,99,235,0.2); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.5rem;
}
.feature-icon.blue { background: rgba(37,99,235,0.15); color: var(--blue); }
.feature-icon.gold { background: rgba(245,158,11,0.15); color: var(--gold); }
.feature-icon.green { background: rgba(16,185,129,0.15); color: var(--green); }
.feature-icon.purple { background: rgba(124,58,237,0.15); color: var(--purple); }
.feature-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.feature-card p { font-size: 0.95rem; color: var(--gray-400); line-height: 1.7; }

/* ===== Multi-Device Section ===== */
.multi-device { padding: 100px 0; background: linear-gradient(180deg, transparent, rgba(37,99,235,0.03), transparent); }
.device-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 48px; flex-wrap: wrap; }
.device-tab {
  padding: 12px 28px; border-radius: 30px; font-size: 0.95rem; font-weight: 600;
  color: var(--gray-400); background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition); cursor: pointer;
}
.device-tab:hover { color: var(--white); border-color: var(--blue); }
.device-tab.active { background: var(--blue); color: var(--white); border-color: var(--blue); }
.device-content { display: flex; align-items: center; gap: 60px; }
.device-panel { display: none; width: 100%; }
.device-panel.active { display: flex; align-items: center; gap: 60px; animation: fadeInUp 0.5s ease; }
.device-panel .device-img { flex: 0 0 45%; }
.device-panel .device-img img { border-radius: 16px; box-shadow: var(--shadow-lg); }
.device-panel .device-info { flex: 1; }
.device-panel .device-info h3 { font-size: 1.75rem; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.device-panel .device-info p { color: var(--gray-400); margin-bottom: 24px; line-height: 1.8; }
.device-panel .device-info ul { margin-bottom: 24px; }
.device-panel .device-info ul li {
  padding: 8px 0; color: var(--gray-300); display: flex; align-items: center; gap: 10px;
}
.device-panel .device-info ul li::before {
  content: ''; display: inline-block; width: 8px; height: 8px; background: var(--green);
  border-radius: 50%; flex-shrink: 0;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 100px 0; text-align: center;
  background: linear-gradient(180deg, transparent, rgba(37,99,235,0.05), rgba(124,58,237,0.05), transparent);
}
.cta-section h2 { font-size: 2.5rem; font-weight: 800; color: var(--white); margin-bottom: 16px; }
.cta-section p { font-size: 1.15rem; color: var(--gray-400); margin-bottom: 36px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }

/* ===== Page Hero (Sub pages) ===== */
.page-hero {
  padding: 140px 0 80px; text-align: center; position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(37,99,235,0.12) 0%, transparent 60%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: 2.75rem; font-weight: 800; color: var(--white); margin-bottom: 16px; }
.page-hero h1 span { background: linear-gradient(135deg, var(--blue-light), var(--purple-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.page-hero .hero-desc { font-size: 1.1rem; color: var(--gray-400); max-width: 600px; margin: 0 auto; }

/* ===== About Page ===== */
.about-section { padding: 80px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-grid img { border-radius: 16px; box-shadow: var(--shadow-lg); }
.about-text h2 { font-size: 2rem; font-weight: 700; color: var(--white); margin-bottom: 20px; }
.about-text p { color: var(--gray-400); line-height: 1.8; margin-bottom: 16px; }
.timeline { padding: 80px 0; position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, var(--blue), var(--purple), var(--green));
}
.timeline-item {
  display: flex; margin-bottom: 48px; position: relative;
}
.timeline-item:nth-child(odd) { flex-direction: row; }
.timeline-item:nth-child(even) { flex-direction: row-reverse; }
.timeline-dot {
  position: absolute; left: 50%; top: 8px; width: 16px; height: 16px;
  border-radius: 50%; transform: translateX(-50%); z-index: 1;
  background: var(--blue); border: 3px solid var(--bg-dark);
}
.timeline-content {
  width: 45%; background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px; padding: 24px 28px;
}
.timeline-content h3 { font-size: 1.1rem; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.timeline-content .time { font-size: 0.85rem; color: var(--blue); margin-bottom: 8px; }
.timeline-content p { color: var(--gray-400); font-size: 0.95rem; }
.security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.security-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px; padding: 28px 24px; text-align: center; transition: var(--transition);
}
.security-card:hover { transform: translateY(-5px); border-color: rgba(37,99,235,0.3); }
.security-card .s-icon { font-size: 2rem; margin-bottom: 14px; }
.security-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.security-card p { font-size: 0.9rem; color: var(--gray-400); }

/* ===== Team ===== */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px; padding: 28px 20px; text-align: center; transition: var(--transition);
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.team-avatar { width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 16px; object-fit: cover; }
.team-card h4 { font-size: 1.05rem; color: var(--white); margin-bottom: 4px; }
.team-card .role { font-size: 0.85rem; color: var(--blue); margin-bottom: 8px; }
.team-card p { font-size: 0.85rem; color: var(--gray-400); }

/* ===== Services Page ===== */
.services-section { padding: 80px 0; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.service-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px; padding: 36px 28px; transition: var(--transition);
}
.service-card:hover { transform: translateY(-8px); box-shadow: 0 12px 30px rgba(0,0,0,0.4); }
.service-icon { font-size: 2.25rem; margin-bottom: 20px; }
.service-card h3 { font-size: 1.25rem; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.service-card p { color: var(--gray-400); line-height: 1.7; margin-bottom: 16px; }
.service-card ul { margin-bottom: 20px; }
.service-card ul li { color: var(--gray-400); padding: 4px 0; font-size: 0.9rem; padding-left: 18px; position: relative; }
.service-card ul li::before { content: ''; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; background: var(--blue); border-radius: 50%; }
.service-table {
  width: 100%; border-collapse: collapse; margin-top: 40px; border-radius: 12px; overflow: hidden;
}
.service-table th, .service-table td { padding: 14px 20px; text-align: left; }
.service-table thead { background: var(--blue); }
.service-table thead th { color: var(--white); font-weight: 600; }
.service-table tbody tr { background: var(--bg-card); border-bottom: 1px solid rgba(255,255,255,0.03); }
.service-table tbody tr:hover { background: var(--bg-card-hover); }
.service-table tbody td { color: var(--gray-300); }

/* ===== FAQ Page ===== */
.faq-section { padding: 80px 0; }
.faq-toolbar { display: flex; gap: 16px; margin-bottom: 36px; flex-wrap: wrap; justify-content: center; }
.faq-search {
  flex: 1; max-width: 500px; padding: 14px 20px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.1); background: var(--bg-card); color: var(--white);
  font-size: 1rem; outline: none; transition: var(--transition);
}
.faq-search:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.faq-search::placeholder { color: var(--gray-500); }
.faq-filters { display: flex; gap: 8px; flex-wrap: wrap; }
.faq-filter-btn {
  padding: 10px 20px; border-radius: 8px; background: var(--bg-card); color: var(--gray-400);
  border: 1px solid rgba(255,255,255,0.05); font-size: 0.9rem; cursor: pointer; transition: var(--transition);
}
.faq-filter-btn:hover, .faq-filter-btn.active { background: var(--blue); color: var(--white); border-color: var(--blue); }
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-list details {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px; margin-bottom: 12px; transition: var(--transition);
}
.faq-list details:hover { border-color: rgba(37,99,235,0.2); }
.faq-list details[open] { border-color: var(--blue); }
.faq-list summary {
  padding: 18px 24px; font-weight: 600; color: var(--white); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; user-select: none;
  font-size: 1rem;
}
.faq-list summary::after {
  content: '+'; font-size: 1.5rem; color: var(--blue); transition: var(--transition); font-weight: 300;
}
.faq-list details[open] summary::after { content: '−'; transform: rotate(180deg); }
.faq-list .faq-answer { padding: 0 24px 20px; color: var(--gray-400); line-height: 1.8; font-size: 0.95rem; }

/* ===== Contact Page ===== */
.contact-section { padding: 80px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-form-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px; padding: 40px 36px;
}
.contact-form-card h2 { font-size: 1.5rem; font-weight: 700; color: var(--white); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.9rem; color: var(--gray-400); margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 14px 16px; border-radius: 10px; font-size: 1rem;
  border: 1px solid rgba(255,255,255,0.1); background: var(--bg-dark); color: var(--white);
  outline: none; transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
.form-group textarea { resize: vertical; min-height: 140px; }
.form-group input.error, .form-group textarea.error { border-color: #ef4444; }
.form-error { color: #ef4444; font-size: 0.8rem; margin-top: 6px; display: block; }
.form-success { background: rgba(16,185,129,0.15); color: var(--green); padding: 14px 20px; border-radius: 10px; margin-top: 16px; font-weight: 500; }
.contact-info-side { padding-top: 20px; }
.contact-info-side h2 { font-size: 1.5rem; font-weight: 700; color: var(--white); margin-bottom: 20px; }
.contact-methods { margin-bottom: 40px; }
.contact-method {
  display: flex; align-items: flex-start; gap: 16px; padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.contact-method:last-child { border-bottom: none; }
.cm-icon { font-size: 1.5rem; width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cm-icon.blue { background: rgba(37,99,235,0.15); }
.cm-icon.gold { background: rgba(245,158,11,0.15); }
.cm-icon.green { background: rgba(16,185,129,0.15); }
.cm-icon.purple { background: rgba(124,58,237,0.15); }
.cm-info h4 { font-size: 1rem; font-weight: 600; color: var(--white); margin-bottom: 4px; }
.cm-info p { font-size: 0.9rem; color: var(--gray-400); }
.social-links { display: flex; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; }
.social-link {
  width: 44px; height: 44px; border-radius: 10px; background: var(--bg-card);
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.05); color: var(--gray-400);
}
.social-link:hover { background: var(--blue); color: var(--white); transform: translateY(-3px); }
.business-section { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; padding: 28px; }
.business-section h3 { font-size: 1.15rem; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.business-section ul li { padding: 8px 0; color: var(--gray-400); font-size: 0.95rem; }

/* ===== Footer ===== */
.site-footer {
  background: rgba(17, 24, 39, 0.8); border-top: 1px solid rgba(255,255,255,0.05);
  padding: 48px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-brand .logo-text { font-size: 1.3rem; margin-bottom: 12px; }
.footer-brand p { color: var(--gray-500); font-size: 0.9rem; line-height: 1.7; }
.footer-col h4 { font-size: 1rem; font-weight: 600; color: var(--white); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--gray-500); font-size: 0.9rem; padding: 6px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--blue); }
.footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-bottom p { color: var(--gray-500); font-size: 0.85rem; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { max-width: 100%; }
  .hero-buttons { justify-content: center; }
  .hero-visual { order: -1; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .device-panel.active { flex-direction: column; text-align: center; }
  .device-panel .device-img { flex: none; width: 100%; max-width: 400px; }
}

@media (max-width: 768px) {
  .section-title { font-size: 1.75rem; }
  .hero h1 { font-size: 2rem; }
  .hero { padding: 100px 0 60px; min-height: auto; }
  .nav-menu {
    position: fixed; top: 72px; left: 0; right: 0; background: rgba(10,14,28,0.98);
    flex-direction: column; gap: 0; padding: 20px;
    backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.05);
    transform: translateY(-100%); opacity: 0; pointer-events: none; transition: var(--transition);
    max-height: calc(100vh - 72px); overflow-y: auto;
  }
  .nav-menu.active { transform: translateY(0); opacity: 1; pointer-events: all; }
  .nav-menu a { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.03); }
  .nav-toggle { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .timeline::before { left: 24px; }
  .timeline-item, .timeline-item:nth-child(even) { flex-direction: row; }
  .timeline-content { width: calc(100% - 60px); margin-left: 50px; }
  .timeline-dot { left: 24px; }
  .page-hero h1 { font-size: 2rem; }
  .cta-section h2 { font-size: 1.75rem; }
}

/* ===== Print ===== */
@media print {
  .site-header, .site-footer, .cta-section, .nav-download { display: none; }
  body { background: #fff; color: #000; }
}