/* ========================================
   GZTPSS.com - New Design System v2.0
   Guangzhou Huabaotang Biotechnology Co., Ltd.
   Brand: GZTPSS | Cosmetics OEM/ODM Manufacturer
   ======================================== */

/* ===== Design Tokens ===== */
:root {
  /* Colors */
  --color-primary: #1a3c34;
  --color-primary-light: #2a5448;
  --color-primary-dark: #0f2820;
  --color-gold: #c9a86c;
  --color-gold-light: #dcbd88;
  --color-gold-dark: #a8894f;
  --color-cream: #f7f3ea;
  --color-cream-dark: #ede6d4;
  --color-white: #ffffff;
  --color-ink: #1a1a1a;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #e0e0e0;
  --color-success: #2d8659;
  --color-danger: #e74c3c;
  --color-accent: #e94560;

  /* Typography */
  --font-heading: 'Montserrat', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  /* Sizing */
  --max-width: 1280px;
  --header-height: 72px;
  --header-top-height: 36px;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 80px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.18);

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

ul, ol { list-style: none; }

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

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

/* ===== Container ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Section ===== */
.section {
  padding: var(--space-2xl) 0;
}

.section--cream {
  background: var(--color-cream);
}

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

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-xl);
}

.section-header .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

.section--dark .section-header h2 {
  color: var(--color-white);
}

.section-header p {
  font-size: 17px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.section--dark .section-header p {
  color: rgba(255,255,255,0.75);
}

.section-header .divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-dark));
  margin: var(--space-md) auto 0;
  border-radius: 2px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-primary-dark);
  box-shadow: 0 8px 24px rgba(201, 168, 108, 0.3);
}

.btn-primary:hover {
  background: var(--color-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(201, 168, 108, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

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

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

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
}

.header-top {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  padding: 8px 0;
}

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

.header-top .contact-info {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.header-top .contact-info span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-selector {
  position: relative;
}

.lang-btn {
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--color-gold);
  background: rgba(255,255,255,0.1);
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sm);
  min-width: 150px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
}

.lang-selector:hover .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown a {
  display: block;
  padding: 8px 20px;
  color: var(--color-text) !important;
  font-size: 14px;
}

.lang-dropdown a:hover {
  background: var(--color-cream);
  color: var(--color-primary) !important;
}

.header-main {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  padding: 12px 0;
}

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 44px;
  width: auto;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.logo-text .sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Navigation */
.nav-menu {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-menu > a {
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text);
  padding: 8px 0;
  position: relative;
}

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

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

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

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-label {
  cursor: pointer;
  font-weight: 500;
  font-size: 15px;
  padding: 8px 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-dropdown-label::after {
  content: '\25BC';
  font-size: 8px;
  opacity: 0.5;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  min-width: 220px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text);
}

.nav-dropdown-menu a:hover {
  background: var(--color-cream);
  color: var(--color-primary);
}

.nav-dropdown-menu a::after { display: none; }

.nav-cta {
  background: var(--color-gold);
  color: var(--color-primary-dark) !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--color-gold-light);
  transform: translateY(-1px);
}

.nav-cta::after { display: none !important; }

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--header-top-height) + 40px) 0 60px;
  background:
    linear-gradient(135deg, rgba(15, 40, 32, 0.92) 0%, rgba(26, 60, 52, 0.82) 50%, rgba(15, 28, 24, 0.68) 100%),
    url('/images/hero-banner-new.png') center / cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to top, rgba(255,255,255,0.06), transparent);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 820px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-light);
  margin-bottom: 20px;
}

.hero-eyebrow::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--color-gold);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5.5vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 20px;
  text-wrap: balance;
}

.hero h1 .highlight {
  color: var(--color-gold-light);
}

.hero-tagline {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(255,255,255,0.88);
  margin-bottom: 12px;
}

.hero-categories {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 32px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 32px;
  max-width: 700px;
}

.hero-fact {
  padding: 16px 14px;
  background: rgba(15, 40, 32, 0.5);
  backdrop-filter: blur(4px);
}

.hero-fact .label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 4px;
}

.hero-fact .value {
  display: block;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Trust Bar ===== */
.trust-bar {
  background: var(--color-white);
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}

.trust-bar .container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-light);
  font-size: 14px;
  font-weight: 600;
}

.trust-item .icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.trust-item strong {
  color: var(--color-primary);
  font-weight: 700;
}

/* ===== Product Categories ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

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

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.category-card:hover img {
  transform: scale(1.08);
}

.category-card .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,40,32,0.88) 0%, rgba(15,40,32,0.2) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
}

.category-card .cat-name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}

.category-card .cat-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 12px;
}

.category-card .cat-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gold-light);
}

.category-card .cat-link::after {
  content: '\2192';
  transition: var(--transition);
}

.category-card:hover .cat-link::after {
  transform: translateX(4px);
}

.category-card .moq-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--color-gold);
  color: var(--color-primary-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

/* ===== OEM Service ===== */
.oem-flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.oem-step {
  text-align: center;
  position: relative;
}

.oem-step .step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  border: 3px solid var(--color-gold);
}

.oem-step .step-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.oem-step .step-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
}

.oem-step::after {
  content: '\2192';
  position: absolute;
  top: 16px;
  right: -12px;
  color: var(--color-gold);
  font-size: 18px;
  opacity: 0.5;
}

.oem-step:last-child::after {
  display: none;
}

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

.oem-feature {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.oem-feature:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.oem-feature .feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}

.oem-feature h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.oem-feature p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ===== Factory Showcase ===== */
.factory-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.factory-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.factory-images img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.factory-images img:first-child {
  grid-column: span 2;
}

.factory-info h3 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.factory-info p {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  line-height: 1.7;
}

.factory-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.factory-stat {
  border-left: 3px solid var(--color-gold);
  padding-left: 16px;
}

.factory-stat .num {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  color: var(--color-primary);
}

.factory-stat .label {
  font-size: 14px;
  color: var(--color-text-light);
}

/* ===== Why Choose Us ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.advantage-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid transparent;
}

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

.advantage-card .icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-cream), var(--color-cream-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 32px;
}

.advantage-card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  transition: var(--transition);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 24px;
  color: var(--color-gold);
  transition: var(--transition);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  background: var(--color-cream);
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
  background:
    linear-gradient(135deg, rgba(15,40,32,0.95), rgba(26,60,52,0.9)),
    url('/images/factory.webp') center / cover no-repeat;
  padding: var(--space-2xl) 0;
  text-align: center;
}

.cta-section .container {
  max-width: 700px;
}

.cta-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Contact quick info */
.contact-quick {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.contact-quick-item {
  text-align: center;
  padding: 24px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
}

.contact-quick-item .icon {
  font-size: 28px;
  margin-bottom: 8px;
}

.contact-quick-item .label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 4px;
}

.contact-quick-item .value {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
}

/* ===== Footer ===== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand .logo-text {
  color: var(--color-white);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.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;
  font-size: 16px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--color-gold);
  color: var(--color-primary-dark);
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-gold);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
}

.footer-bottom a:hover {
  color: var(--color-gold);
}

/* ===== Floating Contact ===== */
.floating-contact {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  cursor: pointer;
}

.floating-btn:hover {
  transform: scale(1.1);
}

.floating-btn.wechat {
  background: #07c160;
  color: white;
}

.floating-btn.whatsapp {
  background: #25d366;
  color: white;
}

.floating-btn.top {
  background: var(--color-primary);
  color: var(--color-gold);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-menu { display: none; }
  .mobile-menu-btn { display: flex; }

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

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

  .oem-step::after { display: none; }

  .factory-showcase {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .container { padding: 0 20px; }

  .section { padding: 48px 0; }

  .header-top .contact-info {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 140px 0 48px;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .category-grid,
  .advantages-grid,
  .oem-features,
  .factory-stats,
  .contact-quick {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .trust-bar .container {
    flex-direction: column;
  }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}