/* ============================================================
   Xi'an Vitality Biotechnology Co., Ltd.
   B2B Health Products Foreign Trade Website
   Design System: Modern Minimal × Soft Warm
   Primary Color: Plant Green (#3A7D44)
   ============================================================ */

/* CSS Variables - Design Tokens */
:root {
  /* Primary - Plant Green */
  --color-primary-50: #EDF7F1;
  --color-primary-100: #D4EDDA;
  --color-primary-200: #B2DFC0;
  --color-primary-300: #7FCA96;
  --color-primary-400: #4CAF50;
  --color-primary-500: #3A7D44;
  --color-primary-600: #2D6A4F;
  --color-primary-700: #1B5E3A;
  --color-primary-800: #14462B;
  --color-primary-900: #0D2E1C;

  /* Neutral */
  --color-white: #FFFFFF;
  --color-neutral-50: #F8FAF9;
  --color-neutral-100: #F0F2F1;
  --color-neutral-200: #E1E5E3;
  --color-neutral-300: #C5CCC8;
  --color-neutral-400: #9AA39D;
  --color-neutral-500: #6E7A73;
  --color-neutral-600: #4F5A54;
  --color-neutral-700: #3A423D;
  --color-neutral-800: #252B28;
  --color-neutral-900: #111613;

  /* Functional */
  --color-success: #2D6A4F;
  --color-warning: #F59E0B;
  --color-error: #DC2626;
  --color-info: #0EA5E9;
  --color-accent-gold: #C9A227;
  --color-chat-bubble: #E8F4FD;
  --color-chat-bg: #F5E6DE;
  --color-chat-header: #F0DCD2;

  /* Typography */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-accent: 'Montserrat', 'Inter', sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 960px;
  --container-padding-x: 24px;
  --section-padding-y: 96px;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 56px rgba(0,0,0,0.16);
  --shadow-green: 0 16px 40px rgba(58,125,68,0.12);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --transition-fast: all 0.15s ease;
  --transition-base: all 0.2s ease;
  --transition-slow: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-neutral-600);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-base);
}

ul, ol {
  list-style: none;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Typography */
/* Display-level typography uses Montserrat accent font */
.text-hero,
.hero h1,
.page-banner h1,
.section-title {
  font-family: var(--font-accent);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-neutral-800);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 48px; }
h2 { font-size: 36px; }
h3 { font-size: 28px; }
h4 { font-size: 22px; }
h5 { font-size: 18px; }

.text-hero {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-h1 { font-size: 48px; font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; }
.text-h2 { font-size: 36px; font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
.text-h3 { font-size: 28px; font-weight: 600; line-height: 1.25; letter-spacing: -0.01em; }
.text-h4 { font-size: 22px; font-weight: 600; line-height: 1.3; }
.text-body-lg { font-size: 18px; line-height: 1.7; }
.text-body-sm { font-size: 14px; line-height: 1.6; }
.text-small { font-size: 12px; font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase; }

.section-subtitle {
  color: var(--color-primary-500);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-neutral-800);
  margin-bottom: var(--space-6);
}

.section-desc {
  font-size: 18px;
  color: var(--color-neutral-500);
  max-width: 700px;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding-x);
  padding-right: var(--container-padding-x);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}

.section-bg-light {
  background: var(--color-neutral-50);
}

/* Topbar */
.topbar {
  background: var(--color-primary-700);
  color: var(--color-white);
  padding: 10px 0;
  font-size: 13px;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.topbar-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.topbar-social {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.topbar-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  transition: var(--transition-base);
}

.topbar-social a:hover {
  background: var(--color-white);
  color: var(--color-primary-700);
  transform: translateY(-2px);
}

.topbar-social svg {
  width: 14px;
  height: 14px;
}

/* Navigation */
.navbar {
  background: var(--color-primary-500);
  color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.navbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-mark {
  width: 44px;
  height: 44px;
  background: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-500);
  font-weight: 800;
  font-size: 20px;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 12px;
  font-weight: 500;
  opacity: 0.9;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-menu a {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-2) 0;
  position: relative;
}

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition-base);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 16px 32px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: var(--transition-base);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-primary-500);
  color: var(--color-white);
  border-color: var(--color-primary-500);
}

.btn-primary:hover {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-green);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.btn-secondary:hover {
  background: var(--color-primary-50);
  transform: translateY(-2px);
}

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

.btn-white:hover {
  background: rgba(255,255,255,0.15);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 12px;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 700px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 100%);
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.hero p {
  font-size: 20px;
  line-height: 1.6;
  margin-bottom: var(--space-8);
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-indicators {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-3);
  z-index: 3;
}

.hero-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition-base);
}

.hero-indicator.active {
  background: var(--color-white);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-header-left {
  text-align: left;
}

/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.category-card {
  background: var(--color-white);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-slow);
  text-align: center;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-green);
  border-color: var(--color-primary-200);
}

.category-image {
  height: 180px;
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-primary-100) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.category-image::before {
  content: '';
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-primary-200);
  opacity: 0.5;
}

.category-image svg {
  width: 48px;
  height: 48px;
  color: var(--color-primary-500);
  position: relative;
  z-index: 1;
}

.category-title {
  padding: var(--space-5);
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral-800);
}

/* Feature / Info Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: var(--transition-slow);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary-500);
}

/* Certificates & Factory */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
}

.gallery-item {
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary-100) 0%, var(--color-primary-200) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.gallery-item svg {
  width: 40px;
  height: 40px;
  color: var(--color-primary-600);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.cert-card {
  aspect-ratio: 3/4;
  background: var(--color-white);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.cert-card svg {
  width: 64px;
  height: 64px;
  color: var(--color-primary-500);
  margin-bottom: var(--space-4);
}

/* Product Page Layout */
.page-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-8);
}

.sidebar {
  background: var(--color-white);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  height: fit-content;
  position: sticky;
  top: 100px;
}

.sidebar-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-500);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-primary-100);
}

.category-tree li {
  margin-bottom: var(--space-1);
}

.category-tree a {
  display: block;
  padding: 10px var(--space-3);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-neutral-600);
  transition: var(--transition-base);
}

.category-tree a:hover,
.category-tree a.active {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  font-weight: 600;
}

.category-tree .has-children > a {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.subcategory {
  padding-left: var(--space-4);
  margin-top: var(--space-1);
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-slow);
  border: 1px solid var(--color-neutral-200);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-green);
}

.product-image {
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--color-neutral-50) 0%, var(--color-primary-50) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.product-image svg {
  width: 80px;
  height: 80px;
  color: var(--color-primary-300);
}

.product-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  background: var(--color-primary-500);
  color: var(--color-white);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.product-info {
  padding: var(--space-5);
}

.product-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-neutral-800);
  margin-bottom: var(--space-2);
}

.product-meta {
  font-size: 13px;
  color: var(--color-neutral-400);
  margin-bottom: var(--space-4);
}

.product-actions {
  display: flex;
  gap: var(--space-2);
}

.product-actions .btn {
  flex: 1;
  padding: 10px 12px;
  font-size: 11px;
}

/* Product Detail */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.product-gallery {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.product-main-image {
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--color-neutral-50) 0%, var(--color-primary-50) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-main-image svg {
  width: 160px;
  height: 160px;
  color: var(--color-primary-300);
}

.product-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  padding: var(--space-4);
}

.product-thumb {
  aspect-ratio: 1;
  background: var(--color-neutral-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-base);
}

.product-thumb:hover,
.product-thumb.active {
  border-color: var(--color-primary-500);
}

.product-thumb svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary-400);
}

.product-summary h1 {
  margin-bottom: var(--space-4);
}

.product-summary .price {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary-500);
  margin-bottom: var(--space-6);
}

.product-summary .desc {
  font-size: 16px;
  color: var(--color-neutral-500);
  margin-bottom: var(--space-6);
}

/* Spec Table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-8);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.spec-table th,
.spec-table td {
  padding: 14px var(--space-5);
  text-align: left;
  border-bottom: 1px solid var(--color-neutral-100);
}

.spec-table th {
  background: var(--color-primary-500);
  color: var(--color-white);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table tr:nth-child(even) {
  background: var(--color-neutral-50);
}

/* Detail Sections */
.detail-section {
  margin-bottom: var(--space-12);
}

.detail-section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-neutral-800);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-primary-100);
}

.video-placeholder {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-neutral-800) 0%, var(--color-neutral-900) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  gap: var(--space-4);
}

.video-placeholder svg {
  width: 64px;
  height: 64px;
}

/* FAQ */
.faq-item {
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--color-neutral-800);
  text-align: left;
  background: var(--color-white);
}

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

.faq-answer {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--color-neutral-500);
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* Blog */
.blog-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-8);
}

.blog-list {
  display: grid;
  gap: var(--space-6);
}

.blog-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-neutral-200);
  transition: var(--transition-slow);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.blog-image {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-primary-100) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-image svg {
  width: 48px;
  height: 48px;
  color: var(--color-primary-400);
}

.blog-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.blog-category {
  display: inline-block;
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
  width: fit-content;
}

.blog-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-neutral-800);
  margin-bottom: var(--space-3);
}

.blog-excerpt {
  color: var(--color-neutral-500);
  margin-bottom: var(--space-4);
}

.blog-meta {
  font-size: 13px;
  color: var(--color-neutral-400);
}

/* About Page */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.about-content h2 {
  margin-bottom: var(--space-5);
}

.about-content p {
  margin-bottom: var(--space-5);
  color: var(--color-neutral-500);
}

.about-video {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.stat-card {
  text-align: center;
  padding: var(--space-8);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-family: var(--font-accent);
  font-size: 40px;
  font-weight: 800;
  color: var(--color-primary-500);
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: 14px;
  color: var(--color-neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
}

.contact-info-card {
  background: var(--color-primary-500);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
}

.contact-info-card h2 {
  color: var(--color-white);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid rgba(255,255,255,0.2);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-item svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item strong {
  display: block;
  color: var(--color-white);
  margin-bottom: var(--space-1);
}

.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-neutral-200);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-neutral-700);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px var(--space-4);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-neutral-800);
  transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary-400);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* Footer */
.footer {
  background: var(--color-primary-900);
  color: var(--color-white);
  padding-top: var(--space-20);
  padding-bottom: var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand .logo-text {
  margin-bottom: var(--space-4);
}

.footer-brand p {
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-5);
  line-height: 1.7;
}

.footer-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-5);
  color: var(--color-white);
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--color-white);
  padding-left: var(--space-2);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}

.footer-social a:hover {
  background: var(--color-primary-500);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

/* Floating Chat Widget - Tea Drops Style */
.chat-widget {
  position: fixed;
  right: 24px;
  bottom: 120px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
}

.chat-toggle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-primary-500);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(58, 125, 68, 0.35);
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
}

.chat-toggle:hover {
  background: var(--color-primary-600);
  transform: scale(1.05);
}

.chat-toggle svg {
  width: 28px;
  height: 28px;
}

.chat-popup {
  position: absolute;
  bottom: 70px;
  right: 0;
  width: 340px;
  background: var(--color-chat-bg);
  border-radius: 24px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  overflow: hidden;
  display: none;
  font-family: var(--font-body);
}

.chat-widget.open .chat-popup {
  display: block;
  animation: chat-popup-in 0.3s ease-out;
}

@keyframes chat-popup-in {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.chat-header {
  background: var(--color-chat-header);
  padding: 22px 24px 18px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.chat-header h4 {
  color: var(--color-neutral-900);
  font-family: var(--font-accent);
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
  display: flex;
  align-items: center;
  gap: 8px;
}

.wave-emoji {
  display: inline-block;
  transform-origin: 70% 70%;
  animation: wave-hand 1.8s ease-in-out infinite;
}

@keyframes wave-hand {
  0% { transform: rotate(0deg); }
  15% { transform: rotate(14deg); }
  30% { transform: rotate(-8deg); }
  45% { transform: rotate(14deg); }
  60% { transform: rotate(-4deg); }
  75% { transform: rotate(10deg); }
  100% { transform: rotate(0deg); }
}

.chat-close {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  color: var(--color-neutral-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  line-height: 1;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
}

.chat-close:hover {
  background: rgba(0, 0, 0, 0.12);
  color: var(--color-neutral-900);
}

.chat-body {
  padding: 20px 24px 16px;
  min-height: 120px;
}

.chat-message {
  background: var(--color-white);
  padding: 16px 18px;
  border-radius: 18px 18px 18px 4px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-neutral-700);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.chat-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: 0 24px 24px;
}

.chat-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.chat-action-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.chat-action-btn.whatsapp { background: #25D366; }
.chat-action-btn.whatsapp:hover { background: #128C7E; }
.chat-action-btn.email { background: #0EA5E9; }
.chat-action-btn.email:hover { background: #0284C7; }
.chat-action-btn.inquiry { background: var(--color-primary-500); }
.chat-action-btn.inquiry:hover { background: var(--color-primary-600); }

.chat-action-icon svg {
  width: 16px;
  height: 16px;
}

/* Legacy chat-menu kept hidden (single-entry chat popup now replaces it) */
.chat-menu,
.chat-item,
.wechat-item,
.wechat-qr-popup { display: none; }

@media (max-width: 767px) {
  .chat-widget { right: 16px; bottom: 100px; }
  .chat-popup { width: calc(100vw - 32px); right: -8px; max-width: 360px; }
}
/* Page Banner */
.page-banner {
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 100%);
  color: var(--color-white);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-banner h1 {
  color: var(--color-white);
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Inquiry Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

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

.modal {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  background: var(--color-primary-500);
  color: var(--color-white);
  padding: var(--space-5) var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  color: var(--color-white);
  font-size: 20px;
}

.modal-close {
  color: var(--color-white);
}

.modal-body {
  padding: var(--space-6);
}

/* Utilities */
.text-center { text-align: center; }
.text-white { color: var(--color-white); }
.bg-light { background: var(--color-neutral-50); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

/* Responsive */
/* Accessibility: reduced-motion fallback */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-slide { transition: none; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 1279px) {
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1023px) {
  .text-hero { font-size: 42px; }
  .text-h1 { font-size: 38px; }
  .text-h2 { font-size: 30px; }
  .section { padding-top: 64px; padding-bottom: 64px; }
  .page-layout,
  .blog-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .product-detail-grid,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; gap: var(--space-8); }
}

@media (max-width: 767px) {
  /* Mobile: show key contact info (email/phone), hide person name */
  .topbar-inner { justify-content: center; }
  .topbar-left { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); }
  .topbar-left .topbar-item:nth-child(2) { display: none; } /* Hide "Alice" person line */
  .topbar-left .topbar-item { font-size: 12px; }
  .topbar-left .topbar-item svg { width: 14px; height: 14px; }
  .topbar-social { display: none; }
  .nav-menu,
  .nav-cta { display: none; }
  .mobile-menu-toggle { display: flex; }
  .nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--color-primary-600);
    padding: var(--space-6);
    gap: var(--space-4);
  }
  .text-hero { font-size: 32px; }
  .text-h1 { font-size: 30px; }
  .text-h2 { font-size: 24px; }
  .category-grid,
  .product-grid,
  .feature-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .blog-card { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .chat-widget { right: 16px; bottom: 80px; }
  .chat-popup { width: calc(100vw - 32px); right: -8px; }
}