:root {
  --color-primary: #0D5C3F;
  --color-primary-light: #1A7A56;
  --color-primary-dark: #083D2B;
  --color-gold: #B8953A;
  --color-gold-light: #D4AF4E;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F6F3;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #5C5C5C;
  --color-border: #E5E2DC;
}

body {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', 'Noto Serif SC', serif;
}

.font-body-en { font-family: 'Inter', sans-serif; }
.font-body-cn { font-family: 'Noto Sans SC', sans-serif; }
.font-heading { font-family: 'Playfair Display', 'Noto Serif SC', serif; }

.divider-gold {
  width: 60px;
  height: 2px;
  background: var(--color-gold);
}

.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* 导入Google字体 */

/* 通用页面Hero */
.page-hero {
  position: relative;
  padding-top: 5rem;
  padding-bottom: 4rem;
}
@media (min-width: 1024px) {
  .page-hero { padding-bottom: 6rem; }
}
.page-hero-bg {
  position: absolute;
  inset: 0;
}
.page-hero-bg img {
  width: 100%;
  height: 600px;
  object-fit: cover;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8,61,43,0.85) 0%, rgba(13,92,63,0.7) 100%);
}
.page-hero-content {
  position: relative;
  z-index: 10;
  max-width: 1440px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  padding-top: 6rem;
}
@media (min-width: 1024px) {
  .page-hero-content {
    padding-left: 3rem;
    padding-right: 3rem;
  }
}
.page-hero-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1rem;
  display: block;
}
.page-hero-title {
  font-family: 'Noto Serif SC', 'Playfair Display', serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}
@media (min-width: 768px) {
  .page-hero-title { font-size: 3rem; }
}
@media (min-width: 1024px) {
  .page-hero-title { font-size: 3.75rem; }
}
.page-hero-desc {
  font-family: 'Noto Sans SC', 'Inter', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.7);
  max-width: 48rem;
}
@media (min-width: 768px) {
  .page-hero-desc { font-size: 1.125rem; }
}

/* 章节通用样式 */
.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
}
@media (min-width: 1024px) {
  .section { padding-top: 8rem; padding-bottom: 8rem; }
}
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
@media (min-width: 1024px) {
  .section-header { margin-bottom: 4rem; }
}
.section-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
  display: block;
}
.section-divider {
  width: 48px;
  height: 2px;
  background: var(--color-gold);
  margin: 0 auto 2rem;
}
.section-title {
  font-family: 'Noto Serif SC', 'Playfair Display', serif;
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text-primary);
}
@media (min-width: 768px) {
  .section-title { font-size: 2.25rem; }
}
@media (min-width: 1024px) {
  .section-title { font-size: 3rem; }
}
.section-subtitle {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-top: 0.75rem;
}
.section-desc {
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 48rem;
  margin: 1.5rem auto 0;
}

/* 导航栏 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  transition: all 0.3s;
  background: var(--color-primary);
}
.site-header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
@media (min-width: 1024px) {
  .site-header-inner {
    padding-left: 3rem;
    padding-right: 3rem;
  }
}
.nav-desktop {
  display: none;
  align-items: center;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .nav-desktop { display: flex; }
}
.nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  transition: color 0.3s;
  text-decoration: none;
}
.nav-link:hover { color: #FFFFFF; }
.nav-link.active { color: #FFFFFF; }

/* 页脚 */
.site-footer {
  background: var(--color-primary-dark);
}
.site-footer-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
@media (min-width: 1024px) {
  .site-footer-inner {
    padding: 4rem 3rem;
  }
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
}
.footer-title {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-links a {
  font-family: 'Noto Sans SC', 'Inter', sans-serif;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: color 0.3s;
}
.footer-links a:hover { color: #FFFFFF; }
.footer-text {
  font-family: 'Noto Sans SC', 'Inter', sans-serif;
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.5);
}
.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; }
}
.footer-copy {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 0.3s;
  border-radius: 0.125rem;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
}
.btn-primary:hover { gap: 0.75rem; }
.btn-outline-white {
  border: 1px solid rgba(255,255,255,0.4);
  color: #FFFFFF;
}
.btn-outline-white:hover {
  background: #FFFFFF;
  color: #064e3b;
}
.btn-link {
  color: var(--color-primary);
  padding: 0;
  background: transparent;
}
.btn-link:hover { gap: 0.75rem; }

/* 卡片通用 */
.card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  transition: all 0.3s;
}
.card:hover {
  box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

/* 产品图片灯箱 */
#image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(0,0,0,0.9);
}
#image-lightbox.flex { display: flex; }
#image-lightbox.hidden { display: none; }
.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 3rem;
  height: 3rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transition: background 0.3s;
  background: transparent;
  border: none;
  cursor: pointer;
}
.lightbox-close:hover { background: rgba(255,255,255,0.2); }
.lightbox-content {
  max-width: 64rem;
  width: 100%;
}
.lightbox-img {
  width: 100%;
  height: auto;
  max-height: 80vh;
  object-fit: contain;
}
.lightbox-title {
  text-align: center;
  color: #FFFFFF;
  margin-top: 1rem;
  font-size: 1.125rem;
  font-family: 'Noto Serif SC', serif;
}

/* 容器 */
.container-fy {
  max-width: 1440px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
@media (min-width: 1024px) {
  .container-fy {
    padding-left: 3rem;
    padding-right: 3rem;
  }
}