/* ===========================
   天源生物 - 企业官网样式
   设计风格：简约奢华、自然有机
   =========================== */

/* CSS Variables - 设计系统 */
:root {
  /* 主色调 - 自然有机感 */
  --color-primary: #2C4A3E;        /* 深森林绿 - 代表天然 */
  --color-primary-light: #3D6B5A;
  --color-primary-dark: #1A3329;
  
  /* 辅助色 */
  --color-accent: #C9A96E;         /* 金色 - 奢华感 */
  --color-accent-light: #D4B97A;
  
  /* 中性色 */
  --color-cream: #FAF8F5;          /* 暖米色 - 背景 */
  --color-white: #FFFFFF;
  --color-gray-100: #F5F3F0;
  --color-gray-200: #E8E4DF;
  --color-gray-300: #D1CBC4;
  --color-gray-400: #A89F95;
  --color-gray-500: #7A7168;
  --color-gray-600: #5C5550;
  --color-gray-700: #3D3733;
  --color-black: #1A1A1A;
  
  /* 字体 */
  --font-display: 'Playfair Display', 'Noto Serif SC', Georgia, serif;
  --font-body: 'Source Sans Pro', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 8rem;
  
  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.6s ease;
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
  
  /* 布局 */
  --max-width: 1200px;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-gray-700);
  background-color: var(--color-cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-gray-700);
}

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

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

/* ===========================
   Header & Navigation
   =========================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-mark {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  border-radius: 50%;
  transition: transform var(--transition-base);
}

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

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.logo-subtitle {
  font-size: 0.7rem;
  color: var(--color-gray-400);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-600);
  padding: var(--spacing-xs) 0;
  position: relative;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

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

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

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

.nav-cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: 0.6rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

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

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

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 32px;
  position: relative;
  z-index: 1001;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  position: absolute;
  left: 4px;
  transition: all var(--transition-base);
}

.mobile-menu-btn span:nth-child(1) { top: 8px; }
.mobile-menu-btn span:nth-child(2) { top: 15px; }
.mobile-menu-btn span:nth-child(3) { top: 22px; }

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg);
  top: 15px;
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg);
  top: 15px;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
  background: linear-gradient(135deg, var(--color-cream) 0%, #F0EDE8 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(44, 74, 62, 0.03) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  animation: fadeInUp 0.8s ease-out;
}

.hero-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-sm);
  padding: 0.4rem 1rem;
  border: 1px solid var(--color-accent);
  border-radius: 2px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary-dark);
  line-height: 1.2;
}

.hero-title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-base);
  letter-spacing: 0.02em;
}

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

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

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

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

.hero-visual {
  position: relative;
  animation: fadeInRight 0.8s ease-out 0.2s both;
}

.hero-image {
  width: 100%;
  height: 500px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image::before {
  content: '天源生物';
  font-family: var(--font-display);
  font-size: 3rem;
  color: rgba(255, 255, 255, 0.1);
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.2em;
}

.hero-stats {
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-sm);
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
}

.stat-item {
  text-align: center;
  padding: 0 var(--spacing-md);
  border-right: 1px solid var(--color-gray-200);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===========================
   Sections - Common
   =========================== */
.section {
  padding: var(--spacing-xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-xs);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-sm);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-gray-500);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===========================
   About Section
   =========================== */
.about {
  background: var(--color-white);
}

.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-image {
  width: 100%;
  height: 500px;
  background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-200) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-image::before {
  content: '2009';
  font-family: var(--font-display);
  font-size: 8rem;
  color: rgba(44, 74, 62, 0.05);
  position: absolute;
}

.about-content {
  padding-left: var(--spacing-md);
}

.about-content .section-tag,
.about-content .section-title,
.about-content .section-desc {
  text-align: left;
}

.about-content .section-desc {
  margin: 0;
}

.about-features {
  margin-top: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about-feature {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.about-feature-icon {
  width: 48px;
  height: 48px;
  background: var(--color-cream);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.about-feature-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 0.3rem;
}

.about-feature-desc {
  font-size: 0.95rem;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* ===========================
   Services Section
   =========================== */
.services {
  background: var(--color-cream);
}

.services-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.service-card {
  background: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md);
  border-radius: 8px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 64px;
  height: 64px;
  background: var(--color-cream);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.service-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-sm);
}

.service-desc {
  font-size: 0.95rem;
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}

.service-link:hover {
  gap: 0.8rem;
}

/* ===========================
   Products Section
   =========================== */
.products {
  background: var(--color-white);
}

.products-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.product-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  background: var(--color-cream);
  border-radius: 8px;
  overflow: hidden;
  transition: all var(--transition-base);
}

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

.product-image {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.product-image-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.2);
  letter-spacing: 0.1em;
}

.product-info {
  padding: var(--spacing-md);
}

.product-category {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.product-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-xs);
}

.product-desc {
  font-size: 0.9rem;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* ===========================
   Contact Section
   =========================== */
.contact {
  background: var(--color-primary-dark);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(201, 169, 110, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.contact-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
  z-index: 1;
}

.contact .section-tag {
  color: var(--color-accent-light);
}

.contact .section-title {
  color: var(--color-white);
}

.contact .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

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

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

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.contact-value {
  font-size: 1rem;
  color: var(--color-white);
  line-height: 1.6;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
}

.form-input,
.form-textarea {
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-submit {
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-base);
  margin-top: var(--spacing-xs);
}

.contact-submit:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(201, 169, 110, 0.3);
}

/* ===========================
   Footer
   =========================== */
.footer {
  background: var(--color-black);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.footer-social {
  display: flex;
  gap: var(--spacing-xs);
}

.footer-social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

.footer-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-link {
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

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

/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.fade-in-up-delay-1 { animation-delay: 0.1s; }
.fade-in-up-delay-2 { animation-delay: 0.2s; }
.fade-in-up-delay-3 { animation-delay: 0.3s; }
.fade-in-up-delay-4 { animation-delay: 0.4s; }

/* ===========================
   Page Hero (子页面)
   =========================== */
.page-hero {
  padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 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='0.03'%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");
  pointer-events: none;
}

.page-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

.page-hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.page-hero-desc {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===========================
   Breadcrumb
   =========================== */
.breadcrumb {
  padding: var(--spacing-sm) 0;
  background: var(--color-gray-100);
  font-size: 0.85rem;
  color: var(--color-gray-400);
}

.breadcrumb-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.breadcrumb-link {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.breadcrumb-link:hover {
  color: var(--color-accent);
}

.breadcrumb-separator {
  margin: 0 0.5rem;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
  .hero-inner,
  .about-inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .hero-visual {
    order: -1;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  
  .nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(250, 248, 245, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    z-index: 999;
  }
  
  .nav.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-stats {
    position: relative;
    bottom: auto;
    left: auto;
    transform: none;
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .product-card {
    grid-template-columns: 1fr;
  }
  
  .product-image {
    min-height: 150px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
}

/* ===========================
   Google Fonts Import
   =========================== */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Source+Sans+Pro:wght@300;400;500;600;700&family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');