.qr-main {
  padding-bottom: 3.5rem;
}

.qr-hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 110px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.qr-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  animation: qr-shimmer 3s ease-in-out infinite;
}

.qr-hero .particle {
  position: absolute;
  width: 7px;
  height: 7px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.15) 70%, transparent 100%);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.45);
  animation: qr-float 7s ease-in-out infinite;
}

.qr-hero .particle:nth-child(1) { top: 18%; left: 10%; animation-delay: 0s; }
.qr-hero .particle:nth-child(2) { top: 60%; left: 18%; animation-delay: 0.8s; width: 9px; height: 9px; }
.qr-hero .particle:nth-child(3) { top: 30%; left: 80%; animation-delay: 1.4s; }
.qr-hero .particle:nth-child(4) { top: 74%; left: 72%; animation-delay: 2.1s; width: 5px; height: 5px; }
.qr-hero .particle:nth-child(5) { top: 40%; left: 52%; animation-delay: 2.8s; width: 10px; height: 10px; }
.qr-hero .particle:nth-child(6) { top: 14%; left: 62%; animation-delay: 3.5s; }
.qr-hero .particle:nth-child(7) { top: 82%; left: 34%; animation-delay: 4.2s; width: 6px; height: 6px; }
.qr-hero .particle:nth-child(8) { top: 24%; left: 40%; animation-delay: 4.8s; width: 8px; height: 8px; }

.qr-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.qr-eyebrow {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(248, 250, 252, 0.9);
}

.qr-hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  color: #fff;
  margin: 0 0 16px;
  line-height: 1.2;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.qr-subtitle {
  font-size: clamp(16px, 2.4vw, 20px);
  color: #f8f8f8;
  margin: 0 auto;
  max-width: 620px;
  line-height: 1.62;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.qr-section {
  padding: 36px 0 0;
  background: var(--surface);
}

.qr-section .wrap {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.qr-intro {
  text-align: center;
  margin-bottom: 34px;
}

.qr-intro h2 {
  margin: 0;
  font-size: clamp(24px, 3.5vw, 34px);
  color: var(--text);
}

.qr-intro h2::after {
  content: '';
  display: block;
  width: 64px;
  height: 4px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
}

.qr-intro p {
  margin: 14px auto 0;
  max-width: 640px;
  color: var(--muted);
  line-height: 1.6;
}

.qr-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.qr-card {
  background: var(--surface);
  border: 1.5px solid rgba(226, 232, 240, 0.85);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.07);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.qr-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 36px rgba(108, 43, 217, 0.16), 0 8px 16px rgba(0, 0, 0, 0.09);
  border-color: rgba(108, 43, 217, 0.45);
}

.qr-image-link {
  display: block;
  background: linear-gradient(140deg, #f8fafc 0%, #eef2ff 100%);
  padding: 16px;
}

.qr-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 14px;
  background: #fff;
  transition: transform 0.35s ease;
}

.qr-card:hover .qr-image {
  transform: scale(1.05);
}

.qr-content {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.qr-content h3 {
  margin: 0;
  font-size: 1.07rem;
  color: var(--text);
  line-height: 1.35;
}

.qr-content p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.qr-open-btn {
  align-self: flex-start;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.28s ease;
}

.qr-open-btn::after {
  content: '→';
  transition: transform 0.2s ease;
}

.qr-open-btn:hover {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 22px rgba(108, 43, 217, 0.28);
}

.qr-open-btn:hover::after {
  transform: translateX(3px);
}

@media (max-width: 1199px) {
  .qr-gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 899px) {
  .qr-hero {
    padding: 95px 0;
  }

  .qr-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .qr-hero {
    padding: 78px 0;
  }

  .qr-main {
    padding-bottom: 2.6rem;
  }

  .qr-section {
    padding-top: 26px;
  }

  .qr-intro {
    margin-bottom: 24px;
  }

  .qr-gallery {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .qr-content {
    padding: 16px 16px 18px;
  }

  .qr-open-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .qr-hero {
    padding: 70px 0 64px;
  }

  .qr-eyebrow {
    font-size: 0.78rem;
  }

  .qr-hero h1 {
    font-size: clamp(28px, 9vw, 36px);
  }

  .qr-subtitle {
    font-size: 1rem;
  }

  .qr-image-link {
    padding: 12px;
  }
}

@keyframes qr-float {
  0%, 100% { transform: translateY(0) translateX(0) scale(1); opacity: 0.65; }
  50% { transform: translateY(-25px) translateX(10px) scale(1.15); opacity: 1; }
}

@keyframes qr-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}