/* ====================================
   SPACESAMP — 太空健康食品官网全局样式
   设计理念：淡绿色主题 + 科技绿渐变强调
   ==================================== */

/* ---- CSS 变量系统 ---- */
:root {
  /* 主色调 — 淡绿色背景 */
  --color-bg-deep: #f3faf4;
  --color-bg-card: rgba(243, 250, 244, 0.9);
  --color-bg-glass: rgba(240, 250, 242, 0.8);
  --color-surface: #f6fcf7;
  
  /* 科技强调色（以绿色为主基调） */
  --color-cyan: #2e7d32;
  --color-violet: #1b5e20;
  --color-teal: #00897b;
  --color-pink: #e91e63;
  --color-gold: #f9a825;
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #43a047 0%, #1b5e20 100%);
  --gradient-hero: linear-gradient(180deg, rgba(243,250,244,0) 0%, rgba(243,250,244,0.7) 50%, #f3faf4 100%);
  --gradient-card-border: linear-gradient(135deg, rgba(67,160,71,0.3), rgba(27,94,32,0.3));
  --gradient-glow: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(46,125,50,0.06), transparent 40%);
  
  /* 文字 — 深色文字适配浅色底 */
  --color-text-primary: #1a1a2e;
  --color-text-secondary: rgba(26,26,46,0.55);
  --color-text-accent: #0097a7;
  
  /* 字体 */
  --font-hero: 'Bebas Neue', sans-serif;
  --font-display: 'Rajdhani', sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-body: 'Barlow', sans-serif;
  --font-mono: 'Space Mono', monospace;
  
  /* 间距 */
  --section-padding: 120px 0;
  --container-width: 1200px;
  
  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---- 全局重置与基础 ---- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-deep);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 浅色主题下的装饰粒子 canvas */
#star-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ---- 通用容器 ---- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  position: relative;
  z-index: 1;
}

/* ---- 通用标题 ---- */
.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 16px;
  padding: 6px 16px;
  border: 1px solid rgba(46, 125, 50, 0.2);
  border-radius: 20px;
  background: rgba(46, 125, 50, 0.06);
}

.section-subtitle::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(46, 125, 50, 0.4);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.6); }
}

.section-title {
  font-family: var(--font-hero);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.section-description {
  max-width: 640px;
  margin: 20px auto 0;
  color: var(--color-text-secondary);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
}

/* ---- 导航栏 ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-smooth);
}

.navbar.scrolled {
  padding: 12px 0;
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(46, 125, 50, 0.08);
  box-shadow: 0 2px 20px rgba(46, 125, 50, 0.06);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  position: relative;
}

/* SVG 风格 Logo 用 CSS 实现 */
.nav-logo-icon::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(46, 125, 50, 0.2);
}

.nav-logo-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-violet);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(106, 61, 232, 0.2);
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 3px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 36px;
}

.nav-menu a {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
  transition: width var(--transition-smooth);
}

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

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

.nav-cta {
  padding: 10px 24px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  color: #ffffff;
  background: var(--gradient-primary);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 16px rgba(46, 125, 50, 0.25);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(46, 125, 50, 0.35);
}

/* 汉堡菜单按钮 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-smooth);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Hero 区 ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

.hero-content {
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 28px;
  padding: 8px 20px;
  border: 1px solid rgba(46, 125, 50, 0.2);
  border-radius: 24px;
  background: rgba(46, 125, 50, 0.06);
  animation: fadeInDown 1s 0.2s both;
}

.hero-title {
  font-family: var(--font-hero);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 400;
  letter-spacing: 5px;
  text-transform: uppercase;
  line-height: 1.0;
  margin-bottom: 24px;
  color: var(--color-text-primary);
  animation: fadeInUp 1s 0.4s both;
}

.hero-title .gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.8;
  animation: fadeInUp 1s 0.6s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s 0.8s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  color: #ffffff;
  background: var(--gradient-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 24px rgba(46, 125, 50, 0.25);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 36px rgba(46, 125, 50, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text-primary);
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn-secondary:hover {
  border-color: var(--color-cyan);
  background: rgba(46, 125, 50, 0.06);
  transform: translateY(-3px);
}

/* Hero 底部滚动提示 */
.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeInUp 1s 1.2s both;
}

.hero-scroll-indicator span {
  font-size: 0.65rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-cyan), transparent);
  animation: scroll-pulse 2s infinite;
}

@keyframes scroll-pulse {
  0% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.5); }
  100% { opacity: 1; transform: scaleY(1); }
}

/* ---- 关于我们 ---- */
.about {
  padding: var(--section-padding);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
}

.about-image-wrapper::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient-card-border);
  border-radius: 18px;
  z-index: -1;
}

.about-image-wrapper img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 16px;
  display: block;
}

.about-text h3 {
  font-family: var(--font-hero);
  font-size: 2.2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text p {
  font-family: var(--font-serif);
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}

.stat-item {
  text-align: center;
  padding: 20px 12px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.stat-number {
  font-family: var(--font-hero);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-cyan);
  display: block;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

/* ---- 产品展示 ---- */
.products {
  padding: var(--section-padding);
  background: linear-gradient(180deg, transparent, rgba(126,87,194,0.04), transparent);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  position: relative;
  background: var(--color-bg-card);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition-smooth);
  cursor: pointer;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  z-index: 0;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.product-card:hover::before {
  opacity: 1;
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: rgba(46, 125, 50, 0.2);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08),
              0 0 40px rgba(46, 125, 50, 0.06);
}

.product-card-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

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

.product-card-image .product-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(46, 125, 50, 0.2);
  border-radius: 4px;
  color: var(--color-cyan);
}

.product-card-content {
  position: relative;
  padding: 24px;
  z-index: 1;
}

.product-card-content h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 1px;
  color: var(--color-text-primary);
}

.product-card-content p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.product-card-footer .learn-more {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-cyan);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.product-card-footer .learn-more:hover {
  color: var(--color-violet);
}

.product-card-footer .product-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(46, 125, 50, 0.08);
  border: 1px solid rgba(46, 125, 50, 0.12);
  font-size: 1rem;
}

/* ---- 太空餐厅 ---- */
.restaurant {
  padding: var(--section-padding);
}

.restaurant-showcase {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  margin-top: 60px;
}

.restaurant-showcase::before {
  content: '';
  position: absolute;
  inset: -3px;
  background: var(--gradient-card-border);
  border-radius: 22px;
  z-index: -1;
}

.restaurant-showcase img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: 20px;
  display: block;
}

.restaurant-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 48px;
  background: linear-gradient(to top, rgba(26,26,46,0.9) 0%, rgba(26,26,46,0.5) 50%, transparent 100%);
}

.restaurant-overlay h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 1px;
  color: #ffffff;
}

.restaurant-overlay p {
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  font-size: 1rem;
  line-height: 1.7;
}

.restaurant-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}

.restaurant-feature {
  padding: 32px 24px;
  background: var(--color-bg-card);
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  text-align: center;
  transition: all var(--transition-smooth);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.restaurant-feature:hover {
  border-color: rgba(0, 151, 167, 0.15);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.restaurant-feature .feature-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
  display: block;
}

.restaurant-feature h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 1px;
  color: var(--color-text-primary);
}

.restaurant-feature p {
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* ---- 可持续发展 ---- */
.sustainability {
  padding: var(--section-padding);
  background: linear-gradient(180deg, transparent, rgba(94,53,177,0.03), transparent);
}

.sustainability-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.sustainability-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.sustainability-content h3 {
  font-family: var(--font-hero);
  font-size: 2.2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sustainability-content p {
  font-family: var(--font-serif);
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  font-size: 1rem;
}

.sustainability-pillars {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.pillar-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition-fast);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
}

.pillar-item:hover {
  border-color: rgba(0, 151, 167, 0.15);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(0, 151, 167, 0.08);
  font-size: 1.3rem;
  flex-shrink: 0;
}

.pillar-text h5 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 2px;
  color: var(--color-text-primary);
}

.pillar-text p {
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* ---- 页脚 ---- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding: 64px 0 32px;
  background: #faf8ff;
}

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

.footer-brand p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(0, 0, 0, 0.02);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  background: rgba(46, 125, 50, 0.06);
}

.footer-section h4 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: 20px;
}

.footer-section ul {
  list-style: none;
}

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

.footer-section a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-cyan);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: var(--color-text-secondary);
  font-size: 0.8rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color var(--transition-fast);
}

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

/* ---- 滚动渐显动画 ---- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* 入场动画关键帧 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .about-grid,
  .sustainability-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }
  
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: rgba(248, 245, 253, 0.98);
    backdrop-filter: blur(24px);
    padding: 80px 32px 32px;
    gap: 24px;
    transition: right var(--transition-smooth);
    border-left: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.06);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-cta {
    display: none;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .restaurant-features {
    grid-template-columns: 1fr;
  }
  
  .restaurant-showcase img {
    height: 300px;
  }
  
  .restaurant-overlay {
    padding: 24px;
  }
  
  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }
}

@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr;
  }
  
  .stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
}