/* ============================================
   蜂巢涌动传媒科技 - 官网样式
   暗夜金辉配色方案
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary: #050507;
  --bg-secondary: #0a0a0f;
  --bg-tertiary: #0f0f18;
  --bg-card: #0d0d14;
  --bg-card-hover: #121220;
  --border-color: rgba(245, 158, 11, 0.08);
  --border-hover: rgba(245, 158, 11, 0.2);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --gold-100: #fef3c7;
  --gold-200: #fde68a;
  --gold-300: #fcd34d;
  --gold-400: #fbbf24;
  --gold-500: #f59e0b;
  --gold-600: #d97706;
  --gold-700: #b45309;
  --gold-800: #92400e;
  --accent: var(--gold-500);
  --accent-dark: var(--gold-700);
  --accent-light: var(--gold-300);
  --gradient-main: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #b45309 100%);
  --gradient-text: linear-gradient(135deg, #fde68a 0%, #f59e0b 40%, #d97706 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(217, 119, 6, 0.08));
  --shadow-glow: 0 0 80px rgba(245, 158, 11, 0.06);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-card-hover: 0 8px 40px rgba(245, 158, 11, 0.08), 0 4px 20px rgba(0, 0, 0, 0.4);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --container-max: 1200px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

::selection {
  background: rgba(245, 158, 11, 0.25);
  color: #fff;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Utility ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.hide-mobile { display: inline; }
.text-left { text-align: left; }

/* ---------- Section Common ---------- */
.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  padding: 6px 18px;
  border: 1px solid var(--border-color);
  border-radius: 100px;
  background: rgba(245, 158, 11, 0.04);
}

.section-title {
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(5, 5, 7, 0.8);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1001;
}

.logo-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.logo-icon.small { width: 28px; height: 28px; }
.logo-icon svg { width: 100%; height: 100%; }

.logo-text {
  font-size: 18px;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 100px;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--gold-200);
  background: rgba(245, 158, 11, 0.06);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

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

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 24px 80px;
  overflow: hidden;
}

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

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245, 158, 11, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 158, 11, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, #000 20%, transparent 70%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  animation: orbFloat 25s ease-in-out infinite;
}

.hero-orb-1 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.2), transparent 65%);
  top: -20%;
  left: -15%;
}

.hero-orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(217, 119, 6, 0.18), transparent 65%);
  top: 15%;
  right: -12%;
  animation-delay: -8s;
}

.hero-orb-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.12), transparent 65%);
  bottom: -8%;
  left: 35%;
  animation-delay: -16s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(25px, -25px) scale(1.04); }
  66% { transform: translate(-15px, 15px) scale(0.96); }
}

.hero-particles {
  position: absolute;
  inset: 0;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(245, 158, 11, 0.35);
  border-radius: 50%;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-20vh) scale(1); opacity: 0; }
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  background: rgba(245, 158, 11, 0.06);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gold-400);
  margin-bottom: 36px;
  letter-spacing: 0.5px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

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

.hero-title {
  font-size: clamp(38px, 7vw, 68px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 28px;
}

.hero-desc {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 44px;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 100px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--gradient-main);
  color: #000;
  box-shadow: 0 4px 24px rgba(245, 158, 11, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 36px rgba(245, 158, 11, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-outline:hover {
  background: rgba(245, 158, 11, 0.06);
  border-color: var(--accent);
  color: var(--gold-200);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 44px;
  font-size: 16px;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
}

.stat-item { text-align: center; }

.stat-number {
  font-size: 36px;
  font-weight: 900;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-suffix {
  font-size: 26px;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-color);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
  animation: scrollPulse 2.5s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.2; transform: scaleY(0.6); }
  50% { opacity: 0.8; transform: scaleY(1); }
}

/* ---------- Services Section ---------- */
.services {
  padding: 140px 0;
  background: var(--bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.15), transparent);
}

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

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

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-main);
  opacity: 0;
  transition: var(--transition);
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 100% 80% at 50% 0%, rgba(245, 158, 11, 0.03), transparent);
  opacity: 0;
  transition: var(--transition);
}

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

.service-card:hover::before,
.service-card:hover::after {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  color: var(--accent);
  transition: var(--transition);
  position: relative;
  z-index: 1;
}

.service-card:hover .card-icon {
  background: rgba(245, 158, 11, 0.12);
  transform: scale(1.08);
}

.card-icon svg { width: 30px; height: 30px; }

.card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
  position: relative;
  z-index: 1;
}

.card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.card-tags span {
  padding: 4px 14px;
  font-size: 11px;
  font-weight: 600;
  color: var(--gold-400);
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.08);
  border-radius: 100px;
  letter-spacing: 0.3px;
}

/* ---------- Advantages Section ---------- */
.advantages {
  padding: 140px 0;
  background: var(--bg-primary);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.adv-item {
  padding: 40px 28px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.adv-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-main);
  opacity: 0;
  transition: var(--transition);
}

.adv-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.adv-item:hover::after { opacity: 1; }

.adv-number {
  font-size: 52px;
  font-weight: 900;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(217, 119, 6, 0.08));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
  line-height: 1;
}

.adv-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.adv-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- About Section ---------- */
.about {
  padding: 140px 0;
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
  height: 420px;
}

.about-card-stack {
  position: absolute;
  width: 100%;
  height: 100%;
}

.about-card {
  position: absolute;
  width: 200px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}

.about-card:hover {
  border-color: var(--border-hover);
  transform: scale(1.05) !important;
  box-shadow: var(--shadow-card-hover);
}

.about-card-1 {
  top: 8%;
  left: 5%;
  z-index: 3;
  animation: cardFloat1 7s ease-in-out infinite;
}

.about-card-2 {
  top: 38%;
  right: 5%;
  z-index: 2;
  animation: cardFloat2 7s ease-in-out infinite;
  animation-delay: -2.3s;
}

.about-card-3 {
  bottom: 5%;
  left: 22%;
  z-index: 1;
  animation: cardFloat3 7s ease-in-out infinite;
  animation-delay: -4.6s;
}

@keyframes cardFloat1 {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-14px) rotate(0deg); }
}

@keyframes cardFloat2 {
  0%, 100% { transform: translateY(0) rotate(2deg); }
  50% { transform: translateY(-16px) rotate(0deg); }
}

@keyframes cardFloat3 {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

.about-card-icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
}

.about-card-icon svg { width: 100%; height: 100%; }

.about-card span {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.about-content .section-tag {
  display: inline-block;
}

.about-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 20px;
}

.about-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 36px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text-primary);
  font-weight: 500;
}

.about-feature svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ---------- CTA Section ---------- */
.cta-section {
  padding: 140px 0;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(245, 158, 11, 0.04), transparent);
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta-content p {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 44px;
  line-height: 1.7;
}

/* ---------- Contact Section ---------- */
.contact {
  padding: 140px 0;
  background: var(--bg-secondary);
}

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

.contact-card {
  text-align: center;
  padding: 48px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.contact-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, 0.06);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.contact-card:hover .contact-icon {
  background: rgba(245, 158, 11, 0.12);
  transform: scale(1.08);
}

.contact-icon svg { width: 28px; height: 28px; }

.contact-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.contact-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* WeChat Card */
.wechat-id {
  font-size: 20px;
  font-weight: 700;
  color: var(--gold-300);
  letter-spacing: 1px;
  margin-bottom: 16px;
  font-family: 'Inter', var(--font-sans);
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--gold-400);
  background: rgba(245, 158, 11, 0.06);
  border: 1px solid rgba(245, 158, 11, 0.12);
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.btn-copy:hover {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.25);
}

.btn-copy.copied {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  border-color: rgba(74, 222, 128, 0.2);
}

/* QR Code Card */
.qrcode-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.qrcode-inner {
  width: 140px;
  height: 140px;
  background: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  transition: var(--transition);
}

.contact-card:hover .qrcode-inner {
  transform: scale(1.03);
}

.qrcode-inner svg {
  width: 100%;
  height: 100%;
  color: var(--bg-primary);
}

.qrcode-tip {
  font-size: 12px;
  color: var(--text-muted);
}

/* Contact Info Card */
.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

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

.info-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, 0.06);
  border-radius: var(--radius-sm);
  color: var(--accent);
  transition: var(--transition);
}

.contact-card:hover .info-icon {
  background: rgba(245, 158, 11, 0.12);
}

.info-icon svg {
  width: 20px;
  height: 20px;
}

.info-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.info-value {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
}

/* ---------- Footer ---------- */
.footer {
  padding: 48px 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.footer-icp {
  font-size: 12px;
  color: var(--text-muted);
  opacity: 0.6;
}

/* ---------- FAQ Section ---------- */
.faq {
  padding: 140px 0;
  background: var(--bg-primary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-item.active {
  border-color: rgba(245, 158, 11, 0.15);
}

.faq-question {
  font-size: 16px;
  font-weight: 600;
  padding: 24px 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
  user-select: none;
  line-height: 1.6;
  color: var(--text-primary);
}

.faq-question:hover {
  color: var(--gold-300);
}

.faq-question::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--accent);
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  content: '−';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  padding: 0 28px 24px;
}

.faq-answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

@media (max-width: 768px) {
  .faq {
    padding: 96px 0;
  }

  .faq-question {
    font-size: 15px;
    padding: 20px 20px;
  }

  .faq-answer p {
    font-size: 14px;
    padding: 0 20px 20px;
  }
}

/* ---------- Animations ---------- */
.animate-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.9s ease forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.25s; }
.animate-in:nth-child(3) { animation-delay: 0.4s; }
.animate-in:nth-child(4) { animation-delay: 0.55s; }
.animate-in:nth-child(5) { animation-delay: 0.7s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about-grid {
    gap: 48px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(5, 5, 7, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    padding: 100px 32px 32px;
    gap: 4px;
    transition: var(--transition);
    border-left: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-link {
    padding: 14px 20px;
    font-size: 16px;
    border-radius: var(--radius-md);
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: 100svh;
    padding: 100px 20px 60px;
  }

  .hero-title {
    font-size: clamp(32px, 8vw, 52px);
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-number {
    font-size: 28px;
  }

  .hide-mobile { display: none; }

  .services-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-visual {
    height: 260px;
  }

  .about-card {
    width: 155px;
    padding: 20px;
  }

  .about-card-1 { top: 0; left: 0; }
  .about-card-2 { top: 30%; right: 0; }
  .about-card-3 { bottom: 0; left: 18%; }

  .contact-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .contact-info-list {
    gap: 20px;
  }

  .info-item {
    gap: 12px;
  }

  .section-header {
    margin-bottom: 48px;
  }

  .services,
  .advantages,
  .about,
  .cta-section,
  .contact {
    padding: 96px 0;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .service-card { padding: 32px 24px; }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .qrcode-inner {
    width: 120px;
    height: 120px;
  }
}