:root {
  /* Colors */
  --color-primary: #0052cc;
  --color-primary-dark: #091e42;
  --color-primary-light: #deebff;
  --color-accent-purple: #6554c0;
  --color-accent-teal: #008da6;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f5f7;
  --color-text-body: #42526e;
  --color-text-heading: #172b4d;
  --color-text-muted: #6b778c;
  --color-border: #dfe1e6;
  --color-white: #ffffff;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 16px;
  --font-h1: clamp(2.5rem, 5vw, 4rem);
  --font-h2: clamp(2rem, 4vw, 3rem);
  --font-h3: clamp(1.5rem, 3vw, 2.25rem);
  --font-h4: 1.25rem;

  /* Spacing */
  --container-max: 1280px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-section: clamp(60px, 10vw, 120px);

  /* Shadows & Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(9, 30, 66, 0.25);
  --shadow-md: 0 4px 8px -2px rgba(9, 30, 66, 0.25), 0 0 0 1px rgba(9, 30, 66, 0.08);
  --shadow-lg: 0 12px 24px -6px rgba(9, 30, 66, 0.25), 0 0 0 1px rgba(9, 30, 66, 0.08);
  --shadow-hover: 0 16px 32px -8px rgba(9, 30, 66, 0.3), 0 0 0 1px rgba(9, 30, 66, 0.08);

  /* Card Design Variables */
  --card-radius: 20px;
  --card-bg: #ffffff;
  --card-border-color: rgba(226, 232, 240, 0.8);
  --card-shadow-sm: 0 2px 4px rgba(148, 163, 184, 0.05);
  --card-shadow-hover: 0 20px 40px -4px rgba(148, 163, 184, 0.15), 0 8px 16px -4px rgba(148, 163, 184, 0.1);
  
  /* Icon Gradients */
  --grad-purple: linear-gradient(135deg, #8B5CF6 0%, #6366F1 100%);
  --grad-orange: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);
  --grad-teal: linear-gradient(135deg, #14B8A6 0%, #06B6D4 100%);
  --grad-blue: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
  --grad-pink: linear-gradient(135deg, #EC4899 0%, #DB2777 100%);
  --grad-indigo: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
  --grad-cyan: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%);
  --grad-red: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
  /* Online Status Colors */
  --status-online-bg: #e3fcef;
  --status-online-text: #006644;
}

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

body {
  font-family: var(--font-family);
  color: var(--color-text-body);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* Utility */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Background Animation */
.background-container {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: radial-gradient(circle at top, #ffffff 0%, #f4f5f7 100%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s infinite ease-in-out;
}

.orb-1 {
  width: 60vw;
  height: 60vw;
  top: -20vw;
  right: -10vw;
  background: radial-gradient(circle, rgba(222, 235, 255, 0.8), rgba(255, 255, 255, 0));
}

.orb-2 {
  width: 50vw;
  height: 50vw;
  bottom: -10vw;
  left: -10vw;
  background: radial-gradient(circle, rgba(240, 230, 255, 0.8), rgba(255, 255, 255, 0));
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, 40px); }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(9, 30, 66, 0.05);
  height: 70px;
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text-heading);
  letter-spacing: -0.02em;
}

.nav-list {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-heading);
}

.nav-link:hover {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header-container .mobile-header-login {
  display: none;
}

.mobile-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  right: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md);
  display: none;
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-menu.is-open {
  display: flex;
}

.mobile-nav-list {
  display: grid;
  gap: var(--spacing-sm);
}

.mobile-nav-list .nav-link {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(148, 163, 184, 0.12);
}

.mobile-menu .btn {
  width: 100%;
  justify-content: center;
}

.user-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(9, 30, 66, 0.08);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--color-text-heading);
  position: relative;
}

.user-badge img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  cursor: pointer;
}

.points-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-white);
  color: var(--color-text-body);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 10px 12px;
  font-size: 0.8125rem;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.points-tooltip.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.points-tooltip.success { color: #027a48; }
.points-tooltip.error { color: #b42318; }
.points-tooltip.warn { color: #b54708; }
.points-tooltip.info { color: #1d4ed8; }

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8125rem;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
}

.bar {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-heading);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: #0047b3;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-text-heading);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg-alt);
  border-color: #c1c7d0;
}

.btn-ghost {
  color: var(--color-text-heading);
}

.btn-ghost:hover {
  background-color: rgba(9, 30, 66, 0.04);
}

.btn-text {
  padding: 0;
  color: var(--color-primary);
  font-weight: 600;
}

.btn-text:hover {
  text-decoration: underline;
}

/* Hero Section */
.hero-section {
  padding: var(--spacing-section) 0;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.hero-title {
  font-size: var(--font-h1);
  line-height: 1.1;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-body);
  margin-bottom: var(--spacing-xl);
  max-width: 540px;
}

.pill-badge {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.metric-item {
  text-align: left;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-heading);
}

.metric-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

/* Glass Card */
.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.feature-card {
  position: relative;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.card-header h2 {
  font-size: 1.5rem;
  color: var(--color-text-heading);
}

.feature-list {
  margin: var(--spacing-lg) 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-body);
}

.check-icon {
  color: var(--color-accent-teal);
  font-weight: bold;
}

/* Section */
.section {
  padding: var(--spacing-section) 0;
}

.highlight-bg {
  background-color: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
}

.section-header h2 {
  font-size: var(--font-h2);
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.product-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border-color);
  border-radius: var(--card-radius);
  padding: var(--spacing-lg);
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.4s ease,
              background-color 0.4s ease;
  box-shadow: var(--card-shadow-sm);
  overflow: hidden;
  /* GSAP compatibility: removed !important to allow entrance animations */
}

.product-card:hover {
  transform: translateY(-8px) !important;
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(99, 102, 241, 0.3); /* Subtle accent on hover */
}

/* Card Badge */
.card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: 999px;
  background-color: var(--color-bg-alt);
  color: var(--color-text-muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  z-index: 2;
  transition: all 0.3s ease;
}

.product-card:hover .card-badge {
  background-color: var(--color-white);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.card-badge.upcoming {
  background-color: #f1f5f9;
  color: #64748b;
}

/* Online Card Styling */
.product-card.online {
  border-color: rgba(0, 82, 204, 0.2);
  background: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(240, 247, 255, 0.4) 100%);
}

.product-card.online:hover {
  border-color: var(--color-primary);
  box-shadow: 0 20px 40px -4px rgba(0, 82, 204, 0.15), 0 8px 16px -4px rgba(0, 82, 204, 0.1);
}

.product-card.online .card-badge.online {
  background-color: var(--status-online-bg);
  color: var(--status-online-text);
  box-shadow: 0 0 0 1px rgba(0, 102, 68, 0.1);
}

/* Card Icon Wrapper */
.card-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: white;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.1);
}

.product-card:hover .card-icon-wrapper {
  transform: scale(1.1) rotate(-3deg);
}

.card-icon-wrapper svg {
  width: 28px;
  height: 28px;
  stroke-width: 2px;
}

/* Gradient Variants */
.gradient-purple { background: var(--grad-purple); box-shadow: 0 10px 20px -5px rgba(139, 92, 246, 0.4); }
.gradient-orange { background: var(--grad-orange); box-shadow: 0 10px 20px -5px rgba(245, 158, 11, 0.4); }
.gradient-teal { background: var(--grad-teal); box-shadow: 0 10px 20px -5px rgba(20, 184, 166, 0.4); }
.gradient-blue { background: var(--grad-blue); box-shadow: 0 10px 20px -5px rgba(59, 130, 246, 0.4); }
.gradient-pink { background: var(--grad-pink); box-shadow: 0 10px 20px -5px rgba(236, 72, 153, 0.4); }
.gradient-indigo { background: var(--grad-indigo); box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.4); }
.gradient-cyan { background: var(--grad-cyan); box-shadow: 0 10px 20px -5px rgba(6, 182, 212, 0.4); }
.gradient-red { background: var(--grad-red); box-shadow: 0 10px 20px -5px rgba(239, 68, 68, 0.4); }

/* Typography */
.product-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.01em;
  transition: color 0.3s ease;
}

.product-card:hover h3 {
  color: var(--color-primary);
}

.product-card p {
  font-size: 0.9375rem;
  color: var(--color-text-body);
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
  line-height: 1.6;
}

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto; /* Push tags to bottom */
}

.tag {
  font-size: 0.75rem;
  padding: 6px 12px;
  background-color: #f1f5f9;
  color: #64748b;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.product-card:hover .tag {
  background-color: #e2e8f0;
  color: #475569;
}

/* Capability Grid */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.capability-card h4 {
  font-size: 1.125rem;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: 16px;
}

.capability-card h4::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

/* Footer */
.site-footer {
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-white);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  font-weight: 700;
  color: var(--color-text-heading);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-copyright {
  text-align: center;
  color: #8993a4;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  z-index: 200;
  backdrop-filter: blur(8px);
}

.modal-overlay.is-open {
  display: flex;
}

.modal-card {
  width: min(420px, 100%);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px -12px rgba(15, 23, 42, 0.35);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.modal-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  color: var(--color-text-heading);
  font-size: 1.125rem;
}

.wechat-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.12);
}

.modal-subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.modal-body {
  display: flex;
  justify-content: center;
  align-items: center;
}

.qr-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.qr-placeholder {
  width: 220px;
  height: 220px;
  background: var(--color-bg-alt);
  border-radius: 16px;
  border: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.03);
}

.qr-placeholder.is-wxlogin {
  width: 320px;
  height: 380px;
  padding: 0;
  border: none;
  background: transparent;
  box-shadow: none;
}

.qr-placeholder.is-wxlogin #wxLoginContainer,
.qr-placeholder.is-wxlogin .wx_login,
.qr-placeholder.is-wxlogin .impowerBox,
.qr-placeholder.is-wxlogin iframe {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.qr-placeholder.is-wxlogin iframe {
  border: 0;
}

.qr-placeholder img {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  object-fit: contain;
}

.qr-loading,
.qr-error {
  text-align: center;
  padding: 0 var(--spacing-md);
}

.qr-error {
  color: #b42318;
}

.qr-hint {
  display: grid;
  gap: 4px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.qr-step {
  line-height: 1.4;
}

.modal-footer {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-list, .header-actions {
    display: none;
  }

  .header-container .mobile-header-login {
    display: inline-flex;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 16px;
    border-radius: 999px;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-metrics {
    justify-content: center;
  }

  .hero-visual {
    margin-top: var(--spacing-xl);
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
}

.pay-hero {
  padding: var(--spacing-section) 0;
}

.pay-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.pay-hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.pay-hero-card {
  display: flex;
  align-items: center;
}

.pay-summary {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.pay-summary-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-heading);
}

.pay-summary-list {
  display: grid;
  gap: 8px;
  color: var(--color-text-body);
  font-size: 0.95rem;
}

.pay-summary-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.pay-section .section-header {
  margin-bottom: var(--spacing-xl);
}

.pay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.pay-card {
  border: 1px solid var(--card-border-color);
  border-radius: var(--card-radius);
  padding: var(--spacing-lg);
  background: var(--color-white);
  box-shadow: var(--card-shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.pay-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(0, 82, 204, 0.3);
}

.pay-card.is-selected {
  border-color: var(--color-primary);
  box-shadow: 0 20px 40px -4px rgba(0, 82, 204, 0.2);
}

.pay-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.pay-card-header h3 {
  font-size: 1.125rem;
  color: var(--color-text-heading);
}

.pay-price {
  font-weight: 700;
  color: var(--color-primary);
}

.pay-points {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-heading);
}

.pay-card-footer {
  margin-top: auto;
}

.pay-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--spacing-lg);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
}

.pay-form-wrapper {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: var(--spacing-2xl);
  align-items: start;
}

.pay-form-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  display: grid;
  gap: var(--spacing-lg);
}

.pay-form-header h3 {
  font-size: 1.5rem;
  color: var(--color-text-heading);
  margin-bottom: 6px;
}

.pay-form-header p {
  color: var(--color-text-muted);
}

.pay-form {
  display: grid;
  gap: var(--spacing-md);
}

.pay-field {
  display: grid;
  gap: 6px;
  font-size: 0.95rem;
  color: var(--color-text-heading);
}

.pay-field input {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.95rem;
  color: var(--color-text-body);
}

.pay-selected {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 600;
}

.pay-qr-card {
  border: 1px dashed var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-md);
  justify-items: center;
  text-align: center;
  background: #f8fafc;
}

.pay-qr-placeholder {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.pay-qr-image {
  width: 240px;
  height: 240px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: var(--color-white);
}

.pay-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.pay-status {
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 600;
}

.pay-status.success {
  background: #ecfdf3;
  color: #027a48;
}

.pay-status.error {
  background: #fef3f2;
  color: #b42318;
}

.pay-status.warn {
  background: #fffaeb;
  color: #b54708;
}

.pay-status.info {
  background: #eff6ff;
  color: #1d4ed8;
}

.pay-result {
  background: #0f172a;
  color: #e2e8f0;
  padding: 16px;
  border-radius: 12px;
  overflow: auto;
  font-size: 0.85rem;
  line-height: 1.5;
  max-height: 320px;
}

.pay-guide {
  display: grid;
  gap: var(--spacing-lg);
}

.pay-guide-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--spacing-md);
}

.pay-guide-card h4 {
  color: var(--color-text-heading);
  font-size: 1.125rem;
}

.pay-guide-card ol,
.pay-guide-card ul {
  display: grid;
  gap: 6px;
  padding-left: 18px;
  color: var(--color-text-body);
  font-size: 0.95rem;
}

@media (max-width: 1024px) {
  .pay-hero-grid {
    grid-template-columns: 1fr;
  }

  .pay-form-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .pay-hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

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

.learn-section .section-header h2 {
  color: var(--color-text-heading);
}

.learn-layout {
  display: grid;
  gap: var(--spacing-xl);
}

.learn-list-card,
.learn-preview-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(9, 30, 66, 0.06);
  padding: var(--spacing-lg);
}

.learn-list-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--spacing-lg);
}

.learn-list-header h3,
.learn-preview-header h3 {
  font-size: 1.1rem;
  color: var(--color-text-heading);
}

.learn-status {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.learn-list {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.learn-item {
  display: grid;
}

.learn-card {
  text-align: left;
  border-radius: 20px;
  overflow: hidden;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(15, 23, 42, 0.08);
  display: grid;
  grid-template-rows: auto 1fr;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  height: 100%;
}

.learn-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(15, 23, 42, 0.16);
}

.learn-card.is-active {
  border-color: rgba(0, 82, 204, 0.45);
  box-shadow: 0 16px 32px -18px rgba(0, 82, 204, 0.35), 0 0 0 1px rgba(0, 82, 204, 0.3);
}

.learn-card-media {
  height: 180px;
  background: linear-gradient(135deg, rgba(14, 116, 144, 0.85), rgba(99, 102, 241, 0.8));
  display: flex;
  align-items: flex-start;
  padding: 16px;
}

.learn-card-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.88);
  color: var(--color-text-heading);
}

.learn-card-body {
  padding: 16px 18px 18px;
  display: grid;
  gap: 8px;
}

.learn-card-title {
  font-size: 1.05rem;
  color: var(--color-text-heading);
  line-height: 1.4;
}

.learn-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-body);
}

.learn-card-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.learn-preview-card {
  display: grid;
  gap: var(--spacing-md);
  grid-template-rows: auto 1fr;
}

.learn-preview {
  width: 100%;
  min-height: 520px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 16px;
  background: #f8fafc;
}

@media (max-width: 1024px) {
  .learn-list {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

@media (max-width: 640px) {
  .learn-card-media {
    height: 150px;
  }
}