/* ============================================
   GREEN HOUSE CLEANING - PROFESSIONAL DESIGN SYSTEM v2
   ============================================ */

:root {
  /* Premium Color Palette */
  --color-primary: #0E8F5E;
  --color-primary-dark: #0A6D49;
  --color-primary-light: #1BA76B;
  --color-dark: #0B3B2E;
  --color-light: #37C871;
  --color-mint: #BDF0CF;
  --color-mint-light: #D8F5E1;
  --color-accent: #12B88D;

  /* Neutral Palette - Premium */
  --color-white: #FFFFFF;
  --color-gray-50: #FAFBFC;
  --color-gray-100: #F3F5F7;
  --color-gray-200: #E8ECEF;
  --color-gray-300: #D1D9E0;
  --color-gray-400: #A8B5C1;
  --color-gray-500: #7B8A98;
  --color-gray-600: #546471;
  --color-gray-700: #3A4551;
  --color-gray-800: #232E39;
  --color-text: #1A2332;

  /* Status Colors */
  --color-success: #10B981;
  --color-error: #EF4444;
  --color-warning: #F59E0B;

  /* Typography */
  --font-family-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-zh: 'Noto Sans SC', 'PingFang SC', 'HiraginoSansGB', sans-serif;

  --font-size-h1: clamp(2.5rem, 6vw, 4rem);
  --font-size-h2: clamp(1.75rem, 4.5vw, 2.75rem);
  --font-size-h3: clamp(1.375rem, 3.5vw, 2rem);
  --font-size-h4: 1.25rem;
  --font-size-h5: 1.125rem;
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;
  --font-size-xs: 0.75rem;

  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.55;
  --line-height-relaxed: 1.75;
  --line-height-loose: 1.95;

  /* Spacing Scale */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 2.5rem;
  --space-3xl: 3rem;
  --space-4xl: 4rem;
  --space-5xl: 5rem;
  --space-6xl: 6rem;

  /* Radius - Premium Curves */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-2xl: 2.5rem;
  --radius-full: 9999px;

  /* Shadows - Premium Depth */
  --shadow-xs: 0 1px 2px 0 rgba(11, 59, 46, 0.05);
  --shadow-sm: 0 2px 4px 0 rgba(11, 59, 46, 0.08);
  --shadow-md: 0 4px 12px 0 rgba(11, 59, 46, 0.12);
  --shadow-lg: 0 8px 24px 0 rgba(11, 59, 46, 0.15);
  --shadow-xl: 0 12px 32px 0 rgba(11, 59, 46, 0.18);
  --shadow-2xl: 0 20px 48px 0 rgba(11, 59, 46, 0.22);
  --shadow-none: 0 0 0 0 transparent;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0E8F5E 0%, #0A6D49 100%);
  --gradient-primary-light: linear-gradient(135deg, #1BA76B 0%, #0E8F5E 100%);
  --gradient-mint: linear-gradient(135deg, #BDF0CF 0%, #37C871 100%);
  --gradient-subtle: linear-gradient(180deg, rgba(14, 143, 94, 0.05) 0%, transparent 100%);

  /* Transitions */
  --transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index Scale */
  --z-dropdown: 100;
  --z-fixed: 200;
  --z-modal: 300;
  --z-popover: 400;
  --z-tooltip: 500;
}

/* ============================================
   RESET & BASE
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-body), var(--font-family-zh);
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading), var(--font-family-zh);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-snug);
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--font-size-h2);
  margin-bottom: var(--space-2xl);
}

h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--space-lg);
}

h4 {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
}

h5 {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-semibold);
}

p {
  margin-bottom: var(--space-md);
  line-height: var(--line-height-relaxed);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: 500;
}

a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   BUTTONS - PREMIUM
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
  gap: var(--space-sm);
  font-family: inherit;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left var(--transition-normal);
  z-index: -1;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(14, 143, 94, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 8px 25px rgba(14, 143, 94, 0.35);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(14, 143, 94, 0.2);
}

.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: rgba(14, 143, 94, 0.05);
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-small);
}

.btn-lg {
  padding: 1.125rem 2.5rem;
  font-size: var(--font-size-h5);
}

/* ============================================
   CONTAINER & GRID
   ============================================ */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }
}

.grid {
  display: grid;
  gap: var(--space-2xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* ============================================
   CARDS - PREMIUM
   ============================================ */

.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-gray-100);
  position: relative;
  overflow: hidden;
}


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

.card-compact {
  padding: var(--space-xl);
}

/* ============================================
   PRICING CARDS - PROFESSIONAL REDESIGN
   ============================================ */

.pricing-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
}

/* Non-featured cards - clean and minimal */
.pricing-card:not(.popular) {
  background: var(--color-white);
}

.pricing-card:not(.popular):hover {
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow-md);
}

/* Featured card - elevated and highlighted */
.pricing-card.popular {
  background: linear-gradient(135deg, rgba(14, 143, 94, 0.08) 0%, rgba(55, 200, 113, 0.04) 100%);
  border-color: var(--color-primary);
  border-width: 2px;
  box-shadow: 0 20px 40px rgba(14, 143, 94, 0.15);
}

@media (min-width: 768px) {
  .pricing-card.popular {
    transform: scale(1.05);
  }
}

/* Most Popular badge */
.pricing-card.popular::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 0.375rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(14, 143, 94, 0.25);
  z-index: 10;
}

/* Service icon */
.pricing-card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
  text-align: center;
}

/* Service title */
.pricing-card-title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-md);
  text-align: center;
  letter-spacing: -0.01em;
}

/* Price display - three-layer structure */
.pricing-card-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin: var(--space-xl) 0;
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--color-gray-200);
  border-top: 1px solid var(--color-gray-200);
}

.pricing-card-currency {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-600);
  opacity: 0.7;
}

.pricing-card-amount {
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

.pricing-card-period {
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-600);
  opacity: 0.7;
  margin-left: 0.25rem;
}

/* Tier details and options */
.pricing-card-tiers {
  font-size: 0.9rem;
  color: var(--color-gray-700);
  text-align: center;
  margin: var(--space-lg) 0;
  line-height: var(--line-height-normal);
  font-weight: 500;
}

/* Service description */
.pricing-card-description {
  color: var(--color-gray-600);
  font-size: 0.95rem;
  line-height: var(--line-height-relaxed);
  flex-grow: 1;
  margin-bottom: var(--space-xl);
  text-align: center;
}

/* CTA Button */
.pricing-card-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  width: 100%;
  box-shadow: 0 4px 15px rgba(14, 143, 94, 0.25);
  letter-spacing: 0.3px;
}

.pricing-card-cta:hover {
  box-shadow: 0 8px 24px rgba(14, 143, 94, 0.35);
  transform: translateY(-2px);
}

.pricing-card-cta:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(14, 143, 94, 0.2);
}

/* ============================================
   PRICING SECTION - SERVICE DETAIL PAGE
   ============================================ */

.pricing-detail-section {
  background: linear-gradient(135deg, var(--color-mint-light) 0%, rgba(189, 240, 207, 0.3) 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl) var(--space-2xl);
  margin: var(--space-3xl) 0;
  border: 1px solid var(--color-mint);
  box-shadow: 0 8px 24px rgba(14, 143, 94, 0.08);
}

.pricing-detail-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.pricing-detail-header h2 {
  margin-bottom: var(--space-2xl);
  color: var(--color-dark);
}

/* Price display with three-layer structure */
.pricing-detail-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
  margin: var(--space-2xl) 0;
}

.pricing-detail-currency {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-600);
  opacity: 0.7;
}

.pricing-detail-amount {
  font-size: clamp(2.75rem, 8vw, 3.75rem);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

.pricing-detail-period {
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-600);
  opacity: 0.7;
}

.pricing-detail-tiers {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: var(--space-xl) 0;
  line-height: var(--line-height-snug);
  opacity: 0.85;
}

.pricing-detail-description {
  font-size: 1rem;
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
  margin: var(--space-lg) 0 var(--space-xl);
}

.pricing-detail-note {
  font-size: 0.9rem;
  color: var(--color-gray-700);
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: rgba(14, 143, 94, 0.06);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   SECTIONS
   ============================================ */

section {
  padding: var(--space-5xl) 0;
  position: relative;
  overflow: hidden;
}

@media (max-width: 768px) {
  section {
    padding: var(--space-4xl) 0;
  }
}

section.bg-light {
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

section.bg-mint {
  background: linear-gradient(135deg, var(--color-mint-light) 0%, var(--color-mint) 100%);
}

section.bg-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
}

section.bg-primary h1,
section.bg-primary h2,
section.bg-primary h3 {
  color: var(--color-white);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-100);
  position: sticky;
  top: 0;
  z-index: var(--z-fixed);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

header:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gray-100), transparent);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
  gap: var(--space-xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
  text-decoration: none;
  transition: all var(--transition-normal);
}

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

.logo img {
  height: 42px;
  width: auto;
  transition: transform var(--transition-normal);
}

.logo:hover img {
  transform: scale(1.05);
}

.nav {
  display: flex;
  gap: var(--space-2xl);
  align-items: center;
  flex: 1;
  margin-left: var(--space-xl);
}

.nav a {
  color: var(--color-gray-600);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  position: relative;
  padding-bottom: 0.25rem;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

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

.nav a:hover::after {
  width: 100%;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--font-size-h4);
  cursor: pointer;
  color: var(--color-dark);
  transition: all var(--transition-fast);
}

.nav-mobile-toggle:hover {
  color: var(--color-primary);
  transform: scale(1.1);
}

.lang-switch {
  display: flex;
  gap: var(--space-2xs);
  align-items: center;
  background: var(--color-gray-100);
  padding: 0.375rem;
  border-radius: var(--radius-lg);
}

.lang-switch a {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  color: var(--color-gray-600);
  margin: 0;
}

.lang-switch a.active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(14, 143, 94, 0.2);
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: var(--space-md);
    background: var(--color-white);
    padding: var(--space-xl);
    border-top: 1px solid var(--color-gray-100);
    box-shadow: var(--shadow-lg);
    margin-left: 0;
  }

  .nav.active {
    display: flex;
  }

  .nav-mobile-toggle {
    display: block;
  }
}

/* ============================================
   HERO SECTION - PREMIUM
   ============================================ */

.hero {
  padding: var(--space-5xl) 0;
  background: linear-gradient(135deg, #F0FFFE 0%, #E8F7F3 50%, #F9FAFB 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14, 143, 94, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(55, 200, 113, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(30px); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  margin-bottom: var(--space-lg);
  line-height: 1.14;
  font-size: clamp(2.1rem, 4.6vw, 3.15rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero-text p {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  margin-bottom: var(--space-2xl);
  line-height: var(--line-height-relaxed);
  max-width: 95%;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.hero-contact {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-gray-200);
  font-weight: 500;
  color: var(--color-gray-700);
}

.hero-contact > div:first-child > div:first-child,
.hero-contact > div:last-child > div:first-child {
  font-size: 0.75rem;
  color: var(--color-gray-600);
  margin-bottom: 0.5rem;
}

.hero-contact a {
  color: var(--color-primary);
  font-weight: 600;
}

.hero-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1000px;
}

.hero-image svg {
  width: 100%;
  max-width: 520px;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(11, 59, 46, 0.15));
  animation: hover-float 4s ease-in-out infinite;
}

@keyframes hover-float {
  0%, 100% { transform: translateY(0px) rotateZ(0deg); }
  50% { transform: translateY(-20px) rotateZ(2deg); }
}

@media (max-width: 768px) {
  .hero {
    padding: var(--space-4xl) 0;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }

  .hero-image {
    order: -1;
  }

  .hero-text p {
    font-size: 1rem;
  }
}

/* ============================================
   SERVICE CARDS
   ============================================ */

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-gray-100);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
  border-color: var(--color-primary);
}

.service-card-icon {
  width: 90px;
  height: 90px;
  margin: 0 auto var(--space-xl);
  background: linear-gradient(135deg, var(--color-mint) 0%, rgba(55, 200, 113, 0.6) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(189, 240, 207, 0.3);
  transition: all var(--transition-normal);
}

.service-card:hover .service-card-icon {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 8px 25px rgba(189, 240, 207, 0.4);
}

.service-card h3 {
  margin-bottom: var(--space-md);
  font-size: var(--font-size-h4);
  text-align: center;
}

.service-card p {
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
  flex-grow: 1;
  font-size: 0.95rem;
  line-height: var(--line-height-relaxed);
  text-align: center;
}

.service-card a {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-gray-100);
  width: 100%;
  justify-content: center;
  transition: all var(--transition-fast);
}

.service-card:hover a {
  color: var(--color-primary-dark);
}

/* ============================================
   WHY CHOOSE US SECTION
   ============================================ */

.reason-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.reason-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  box-shadow: 0 4px 12px rgba(14, 143, 94, 0.2);
  transition: all var(--transition-normal);
}

.reason-item:hover .reason-icon {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(14, 143, 94, 0.3);
}

.reason-content h4 {
  margin-bottom: var(--space-sm);
  color: var(--color-dark);
}

.reason-content p {
  color: var(--color-gray-600);
  font-size: 0.95rem;
  margin: 0;
  line-height: var(--line-height-relaxed);
}

/* ============================================
   SERVICE AREAS
   ============================================ */

.area-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.area-chip {
  background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-mint-light) 100%);
  color: var(--color-dark);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: var(--font-size-small);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(189, 240, 207, 0.3);
  transition: all var(--transition-fast);
  display: inline-block;
  letter-spacing: 0.3px;
}

.area-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(189, 240, 207, 0.4);
}

/* ============================================
   FAQ SECTION
   ============================================ */

.faq-item {
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-lg) 0;
  transition: all var(--transition-normal);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  color: var(--color-dark);
  font-size: 1rem;
  padding: var(--space-md);
  margin: calc(-1 * var(--space-md));
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

.faq-toggle {
  transition: transform var(--transition-normal);
  font-size: 1.25rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.faq-toggle.active {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  margin-top: 0;
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
  padding: 0;
  background: transparent;
  border-radius: 0;
  border-left: none;
  transition: max-height var(--transition-normal), margin-top var(--transition-normal), padding var(--transition-normal);
}

@keyframes slideDown {
  from {
    opacity: 0;
    max-height: 0;
  }
  to {
    opacity: 1;
    max-height: 500px;
  }
}

.faq-answer.active {
  max-height: 500px;
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--color-primary);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background: linear-gradient(180deg, var(--color-dark) 0%, #091D1A 100%);
  color: var(--color-white);
  padding: var(--space-5xl) 0 var(--space-2xl);
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(14, 143, 94, 0.3), transparent);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  font-size: 1rem;
  letter-spacing: 0.5px;
}

.footer-section a {
  color: var(--color-gray-400);
  font-size: var(--font-size-small);
  display: block;
  margin-bottom: var(--space-md);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.footer-section a:hover {
  color: var(--color-primary);
  padding-left: 0.25rem;
}

.footer-nap {
  font-size: var(--font-size-small);
  color: var(--color-gray-400);
  line-height: var(--line-height-relaxed);
}

.footer-nap strong {
  color: var(--color-white);
  display: block;
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

.social-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 143, 94, 0.15);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  color: var(--color-white);
  font-weight: bold;
  border: 1px solid rgba(14, 143, 94, 0.3);
}

.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary-light);
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(14, 143, 94, 0.3);
}

.social-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  display: block;
}

.footer-bottom {
  border-top: 1px solid rgba(14, 143, 94, 0.2);
  padding-top: var(--space-2xl);
  text-align: center;
  color: var(--color-gray-500);
  font-size: var(--font-size-small);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.text-primary {
  color: var(--color-primary);
}

.text-dark {
  color: var(--color-dark);
}

.text-gray {
  color: var(--color-gray-600);
}

.text-small {
  font-size: var(--font-size-small);
}

/* Spacing Utilities */
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

/* ============================================
   SERVICE DETAIL PAGES
   ============================================ */

.service-detail-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: var(--space-4xl) 0;
  position: relative;
  overflow: hidden;
}

.service-detail-header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.service-detail-header::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.service-detail-header h1 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
}

.service-detail-header p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-h5);
  position: relative;
  z-index: 1;
}

/* ============================================
   BREADCRUMB
   ============================================ */

.breadcrumb {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  margin-bottom: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-white);
}

/* ============================================
   CHECKLIST
   ============================================ */

.checklist {
  list-style: none;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  margin-bottom: 0.65rem;
  padding-left: 0;
  line-height: 1.5;
  color: var(--color-gray-700);
}

.checklist li::before {
  content: '';
  flex: 0 0 auto;
  width: 1.35rem;
  height: 1.35rem;
  margin-top: 0.1rem;
  border-radius: 50%;
  background-color: rgba(14, 143, 94, 0.12);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230E8F5E' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 0.8rem 0.8rem;
  transition: background-color var(--transition-fast);
}

.checklist li:hover::before {
  background-color: rgba(14, 143, 94, 0.2);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.contact-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-mint-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(189, 240, 207, 0.3);
}

.contact-item h3 {
  font-size: var(--font-size-h5);
  margin-bottom: var(--space-sm);
  color: var(--color-dark);
}

.contact-item p {
  color: var(--color-gray-600);
  font-size: var(--font-size-small);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 640px) {
  :root {
    --space-5xl: 3.5rem;
    --space-4xl: 2.5rem;
  }

  h1 { font-size: 1.875rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .hero-contact {
    flex-direction: column;
    gap: var(--space-md);
  }

  .hero-contact > div {
    width: 100%;
  }
}

/* ============================================
   PRICING CARDS v2 — polished (overrides)
   ============================================ */
.pricing-card{ padding: var(--space-xl) var(--space-xl) var(--space-lg); }
.pricing-card.popular{ transform: none !important; }   /* no scale → aligns in grid */
.pricing-card.popular::before{ top:-13px; }
.pricing-card-icon{ font-size: 2.1rem; margin-bottom: var(--space-sm); }
.pricing-card-title{ margin-bottom: var(--space-xs); }

.pricing-card-price{
  display:flex; flex-direction:column; align-items:center; gap:3px;
  margin: var(--space-md) 0;
  padding: var(--space-md) 0;
  border-top:1px solid var(--color-gray-200);
  border-bottom:1px solid var(--color-gray-200);
}
.pc-lead{ font-size:.68rem; font-weight:700; letter-spacing:1.6px; text-transform:uppercase; color:var(--color-gray-400); }
.pc-main{ display:flex; align-items:baseline; gap:.18rem; }
.pc-cur{ font-size:1.35rem; font-weight:700; color:var(--color-primary); }
.pc-amt{ font-size:clamp(2.6rem,6vw,3.4rem); font-weight:800; line-height:1; color:var(--color-primary); letter-spacing:-.02em; }
.pc-unit{ font-size:1.05rem; font-weight:600; color:var(--color-gray-500); }

.pricing-card-tiers{ margin:0 0 var(--space-sm); font-size:.85rem; color:var(--color-gray-600); font-weight:600; }
.pricing-card-description{ margin-bottom: var(--space-lg); font-size:.9rem; }
.pricing-card-cta{ margin-top:auto; }

/* ===== Service detail page — price panel ===== */
.service-price{
  max-width:560px; margin:0 auto; text-align:center;
  background:var(--color-white); border:1px solid var(--color-gray-200);
  border-radius:var(--radius-2xl); padding:var(--space-2xl) var(--space-xl);
  box-shadow:var(--shadow-md);
  display:flex; flex-direction:column; align-items:center; gap:4px;
}
.service-price .pc-main{ margin-top:2px; }
.service-price .pc-amt{ font-size:clamp(3rem,8vw,4rem); }
.service-price .pc-cur{ font-size:1.6rem; }
.service-price .pc-unit{ font-size:1.15rem; }
.service-price-tiers{ font-weight:600; color:var(--color-gray-700); margin:var(--space-sm) 0 0; font-size:.95rem; }
.service-price-note{ color:var(--color-gray-500); font-size:.88rem; line-height:1.6; margin:var(--space-md) 0 0; max-width:470px; }
.service-price .btn{ margin-top:var(--space-lg); }

/* ===== Hero branded illustration + animation ===== */
.hero-illustration{ width:100%; height:auto; display:block; }
.hero-illustration .house{ animation: heroBob 5s ease-in-out infinite; will-change: transform; }
@keyframes heroBob{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-10px); } }
.hero-illustration .spark{ transform-box: fill-box; transform-origin:center; animation: twinkle 2.6s ease-in-out infinite; }
.hero-illustration .spark.s2{ animation-delay:.9s; }
.hero-illustration .spark.s3{ animation-delay:1.6s; }
@keyframes twinkle{ 0%,100%{ opacity:.35; transform:scale(.7); } 50%{ opacity:1; transform:scale(1.15); } }
@media (prefers-reduced-motion: reduce){ .hero-illustration .house,.hero-illustration .spark{ animation:none; } }

/* ===== Mobile header fit — stop narrow-phone horizontal overflow ===== */
@media (max-width: 768px){
  .header-content{ gap: var(--space-md); }
  .logo{ font-size: 1rem; gap: var(--space-xs); min-width: 0; }
  .logo span{ white-space: nowrap; }
  .logo img{ height: 30px; }
  .lang-switch{ padding: 0.2rem; gap: 2px; }
  .lang-switch a{ padding: 0.3rem 0.5rem; font-size: 0.75rem; }
  .nav-mobile-toggle{ font-size: 1.4rem; }
}
@media (max-width: 340px){
  .logo span{ display: none; }            /* ultra-narrow: show logo mark only */
}

/* ===== Two-box pricing (service detail pages) ===== */
.pricing-pair{
  display:grid; grid-template-columns:repeat(2, minmax(0,1fr));
  gap:var(--space-xl); max-width:760px; margin:0 auto;
}
@media (max-width: 680px){ .pricing-pair{ grid-template-columns:1fr; max-width:430px; } }

/* ===== Footer brand logo (click → home) ===== */
.footer-logo{
  display:inline-flex; align-items:center; gap:var(--space-sm);
  margin-bottom:var(--space-2xl); font-weight:700; font-size:1.2rem;
  color:var(--color-white); text-decoration:none;
}
.footer-logo img{ height:40px; width:auto; border-radius:8px; }
.footer-logo:hover{ opacity:.85; }

/* ===== Localize "Most Popular" badge on Chinese pages ===== */
html[lang="zh-CN"] .pricing-card.popular::before{ content: '最受欢迎'; }

/* ===== "Request a Quote" price box (no RM amount) ===== */
.pc-quote{ font-size:1.6rem; font-weight:800; line-height:1.15; color:var(--color-primary); letter-spacing:-.01em; }

/* ===== Footer social icons — override .footer-section a (higher specificity) ===== */
.footer-section a.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
}
.footer-section a.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  transform: translateY(-3px);
}
.footer-section a.social-link svg {
  width: 20px;
  height: 20px;
  fill: #fff;
  display: block;
}