:root {
  --color-primary: #5f1f22;
  --color-primary-dark: #4a181a;
  --color-primary-light: #7a2d31;
  --color-secondary: #F5F37C;
  --color-secondary-dark: #d4d25a;
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #666666;
  --color-border: #e0e0e0;
  --color-dark-bg: #5f1f22;
  --color-light-bg: #f8f8f8;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-size-display: clamp(40px, 5vw, 64px);
  --font-size-h1: clamp(32px, 4vw, 48px);
  --font-size-h2: clamp(24px, 3vw, 36px);
  --font-size-h3: clamp(18px, 2vw, 24px);
  --font-size-body: 16px;
  --font-size-caption: 14px;
  --font-size-small: 12px;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 80px;
  --space-4xl: 120px;
  --content-width: 1300px;
  --header-height: 100px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --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);
  --transition-fast: 150ms ease-out;
  --transition-base: 250ms ease-out;
  --transition-slow: 400ms ease-out;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 9999;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 16px;
}

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0;
  width: 100%;
}

.topline {
  display: inline-block;
  background-color: var(--color-secondary);
  color: var(--color-text);
  font-size: var(--font-size-caption);
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 2px;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.topline-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

.topline-dark {
  background-color: #5f1f22;
  color: #ffffff;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: var(--font-size-body);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

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

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-text);
  border-color: var(--color-secondary);
}

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

.btn-outline-light {
  background-color: transparent;
  color: #ffffff;
  border-color: #ffffff;
}

.btn-outline-light:hover {
  background-color: #ffffff;
  color: var(--color-text);
  transform: translateY(-2px);
}

.btn-arrow {
  transition: transform var(--transition-fast);
  font-size: 1.2em;
}

.btn:hover .btn-arrow,
.card-link:hover .btn-arrow {
  transform: translateX(4px);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--color-border);
}

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

.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-logo img {
  height: 66px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: calc(var(--space-lg) + 30px);
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: var(--font-size-body);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  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-arrow {
  font-size: 0.8em;
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-arrow {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background-color: #ffffff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  padding: var(--space-xs) 0;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  margin-top: var(--space-xs);
}

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

.dropdown-menu a {
  display: block;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-caption);
  color: var(--color-text);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.header-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
  border-radius: 1px;
}

.header-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.header-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
  margin-top: var(--header-height);
}

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

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

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.75) 0%,
    rgba(0, 0, 0, 0.5) 40%,
    rgba(0, 0, 0, 0.2) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0;
  width: 100%;
}

.hero-title {
  font-size: var(--font-size-display);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  max-width: 700px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
  max-width: 600px;
  font-weight: 400;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-small);
  z-index: 2;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.4);
  position: relative;
  overflow: hidden;
}

.hero-scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  50% { top: 100%; }
  100% { top: 100%; }
}

.product-overview {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: var(--font-size-h1);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.3px;
}

.section-subtitle {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.product-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

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

.product-card-image {
  position: relative;
  padding-top: 100%;
  overflow: hidden;
  background-color: var(--color-light-bg);
}

.product-card-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card-image img {
  transform: scale(1.05);
}

.product-card-content {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.product-card-desc {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-caption);
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--transition-fast);
  margin-top: auto;
}

.card-link:hover {
  gap: 10px;
}

.strength {
  padding: var(--space-4xl) 0;
  background-color: var(--color-dark-bg);
  background-image: url('/AppUpload/Image/5e818ae593e44d9897757d7fd9df472e.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.strength::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(95, 31, 34, 0.75);
  z-index: 0;
}

.strength-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.strength-content .section-title {
  color: #ffffff;
}

.strength-text {
  font-size: var(--font-size-body);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

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

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.stat-item:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(245, 243, 124, 0.3);
  transform: translateY(-2px);
}

.stat-number {
  display: block;
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  color: var(--color-secondary);
  line-height: 1;
  margin-bottom: var(--space-xs);
  letter-spacing: -1px;
}

.stat-unit {
  font-size: 0.6em;
  font-weight: 700;
}

.stat-label {
  font-size: var(--font-size-caption);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.product-overview .product-list-card-desc {
  display: none;
}

.product-showcase {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg);
}

.showcase-item {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.showcase-item:last-child {
  margin-bottom: 0;
}

.showcase-item.showcase-right {
  grid-template-columns: 1fr 1.2fr;
}

.showcase-item.showcase-right .showcase-image {
  order: 2;
}

.showcase-item.showcase-right .showcase-content {
  order: 1;
}

.showcase-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  padding-top: 56.25%;
  background-color: var(--color-light-bg);
  box-shadow: var(--shadow-md);
}

.showcase-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.showcase-image:hover img {
  transform: scale(1.03);
}

.showcase-title {
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.showcase-desc {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.about-teaser {
  padding: var(--space-4xl) 0;
  background-color: var(--color-light-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  padding-top: 56.25%;
  background-color: var(--color-bg);
  box-shadow: var(--shadow-md);
}

.about-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.about-image:hover img {
  transform: scale(1.03);
}

.about-text {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
}

.contact-cta {
  padding: var(--space-3xl) 0;
  background-color: var(--color-primary);
  color: #ffffff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(245, 243, 124, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.contact-cta-content {
  position: relative;
  z-index: 1;
}

.contact-cta-title {
  font-size: var(--font-size-h1);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.3px;
}

.contact-cta-subtitle {
  font-size: var(--font-size-body);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
}

.contact-cta-phone {
  margin-bottom: var(--space-lg);
}

.contact-cta-phone a {
  font-size: var(--font-size-h1);
  font-weight: 800;
  color: var(--color-secondary);
  transition: opacity var(--transition-fast);
  display: inline-block;
  letter-spacing: -0.5px;
}

.contact-cta-phone a:hover {
  opacity: 0.85;
}

.site-footer {
  padding: var(--space-3xl) 0 var(--space-lg);
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-about {
  max-width: 400px;
}

.footer-logo {
  height: 100px;
  width: auto;
  margin-bottom: var(--space-sm);
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-desc {
  font-size: var(--font-size-caption);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
}

.footer-title {
  font-size: var(--font-size-body);
  font-weight: 600;
  color: #ffffff;
  margin-bottom: var(--space-sm);
  letter-spacing: 0.3px;
}

.footer-links li,
.footer-contact li {
  margin-bottom: var(--space-xs);
}

.footer-links a,
.footer-contact a {
  font-size: var(--font-size-caption);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--color-secondary);
}

.footer-contact li {
  font-size: var(--font-size-caption);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: var(--font-size-small);
  color: rgba(255, 255, 255, 0.4);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

/* ===== PAGE HERO (Inner Pages) ===== */
.page-hero {
  position: relative;
  height: 50vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  overflow: hidden;
  margin-top: var(--header-height);
}

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

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

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.75) 0%,
    rgba(0, 0, 0, 0.5) 50%,
    rgba(0, 0, 0, 0.3) 100%
  );
  z-index: 1;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0;
  width: 100%;
}

.page-hero-title {
  font-size: var(--font-size-display);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.5px;
}

.page-hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
  max-width: 650px;
  font-weight: 400;
}

/* ===== CATEGORY NAV ===== */
.category-nav {
  background-color: var(--color-primary);
  position: sticky;
  top: var(--header-height);
  z-index: 999;
  border-bottom: 3px solid var(--color-secondary);
}

.category-nav-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0;
}

.category-nav-link {
  flex: 1;
  text-align: center;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-caption);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
  letter-spacing: 0.3px;
}

.category-nav-link:hover,
.category-nav-link.active {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.08);
  border-bottom-color: var(--color-secondary);
}

/* ===== CATEGORY SECTION ===== */
.category-section {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg);
  scroll-margin-top: calc(var(--header-height) + 52px);
}

.category-section--alt {
  background-color: var(--color-light-bg);
}

.category-section--dark {
  background-color: var(--color-dark-bg);
  color: #ffffff;
}

.category-section--dark .section-title {
  color: #ffffff;
}

.category-section--dark .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.category-header {
  margin-bottom: var(--space-xl);
}

.category-desc {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.8;
  max-width: 700px;
  margin-bottom: var(--space-lg);
}

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

/* ===== SUBCATEGORY GRID ===== */
.subcategory-grid {
  display: grid;
  gap: var(--space-md);
}

.subcategory-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.subcategory-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

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

/* ===== SUBCATEGORY CARD ===== */
.subcategory-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

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

.subcategory-card-image {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background-color: var(--color-light-bg);
}

.subcategory-card-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.subcategory-card:hover .subcategory-card-image img {
  transform: scale(1.05);
}

.subcategory-card-content {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.subcategory-card-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.subcategory-card-desc {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  line-height: 1.6;
  flex: 1;
}

/* ===== COMPACT SUBCATEGORY CARD ===== */
.subcategory-card--compact {
  text-align: center;
}

.subcategory-card--compact .subcategory-card-image {
  padding-top: 75%;
}

.subcategory-card--compact .subcategory-card-content {
  padding: var(--space-sm) var(--space-md);
}

.subcategory-card--compact .subcategory-card-title {
  font-size: var(--font-size-body);
  margin-bottom: 0;
}

.category-section--dark .subcategory-card {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

.category-section--dark .subcategory-card:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(245, 243, 124, 0.3);
  transform: translateY(-4px);
}

.category-section--dark .subcategory-card-title {
  color: #ffffff;
}

.category-section--dark .subcategory-card-image {
  background-color: rgba(255, 255, 255, 0.05);
}

/* ===== CATEGORY SHOWCASE ===== */
.category-showcase {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.category-showcase--reverse {
  grid-template-columns: 1fr 1.1fr;
}

.category-showcase--reverse .category-showcase-image {
  order: 2;
}

.category-showcase--reverse .category-showcase-content {
  order: 1;
}

.category-showcase-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  padding-top: 56.25%;
  background-color: var(--color-light-bg);
  box-shadow: var(--shadow-md);
}

.category-showcase-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.category-showcase-image:hover img {
  transform: scale(1.03);
}

.category-showcase-title {
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.category-showcase-desc {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

/* ===== CATEGORY FEATURES LIST ===== */
.category-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.category-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--font-size-caption);
  color: var(--color-text);
  line-height: 1.5;
}

.category-feature-item::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  min-width: 6px;
  background-color: var(--color-secondary);
  border-radius: 1px;
  margin-top: 7px;
}

/* ===== PRODUCTS LAYOUT (Sidebar + Grid) ===== */
.products-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-xl) 0 var(--space-4xl);
  min-height: 80vh;
}

.products-sidebar {
  background-color: #FAF7F2;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  position: sticky;
  top: calc(var(--header-height) + 24px);
  align-self: start;
  max-height: calc(100vh - var(--header-height) - 48px);
  overflow-y: auto;
}

.products-sidebar::-webkit-scrollbar {
  width: 4px;
}

.products-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.products-sidebar::-webkit-scrollbar-thumb {
  background-color: #d4cfc7;
  border-radius: 2px;
}

.sidebar-title {
  font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 3px double var(--color-primary);
  letter-spacing: 0.08em;
}

.sidebar-close {
  display: none;
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.sidebar-close:hover {
  background-color: rgba(95, 31, 34, 0.08);
  color: var(--color-primary);
}

.category-tree-all {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 16px;
  font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  font-size: var(--font-size-body);
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  margin-bottom: 0;
  border-left: 4px solid transparent;
  cursor: pointer;
  border-bottom: 1px solid rgba(95, 31, 34, 0.1);
  letter-spacing: 0.04em;
}

.category-tree-all:hover {
  background-color: rgba(95, 31, 34, 0.04);
}

.category-tree-all.active {
  color: var(--color-primary);
  background-color: rgba(95, 31, 34, 0.08);
  border-left-color: var(--color-primary);
}

.category-tree-all .count {
  font-family: var(--font-family);
  font-size: var(--font-size-small);
  font-weight: 400;
  color: var(--color-muted);
  background-color: rgba(95, 31, 34, 0.06);
  padding: 2px 10px;
  border-radius: 10px;
}

.category-tree-all.active .count {
  color: var(--color-primary);
  background-color: rgba(95, 31, 34, 0.12);
}

.category-tree-item {
  border-bottom: 1px solid rgba(95, 31, 34, 0.1);
}

.category-tree-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 14px 16px;
  font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  font-size: var(--font-size-body);
  font-weight: 600;
  color: var(--color-text);
  border-radius: 0;
  transition: all var(--transition-base);
  border-left: 4px solid transparent;
  cursor: pointer;
  text-align: left;
  background: transparent;
  border-top: none;
  border-right: none;
  border-bottom: none;
  letter-spacing: 0.04em;
}

.category-tree-btn:hover {
  background-color: rgba(95, 31, 34, 0.04);
}

.category-tree-btn.active {
  color: var(--color-primary);
  background-color: rgba(95, 31, 34, 0.08);
  border-left-color: var(--color-primary);
}

.category-tree-arrow {
  font-size: 12px;
  transition: transform var(--transition-base);
  color: var(--color-muted);
  flex-shrink: 0;
  width: 16px;
  text-align: center;
  line-height: 1;
}

.category-tree-btn.active .category-tree-arrow {
  color: var(--color-primary);
}

.category-tree-item.open .category-tree-arrow {
  transform: rotate(90deg);
}

.category-tree-children {
  display: none;
  padding-left: 0;
  margin-bottom: 0;
  background-color: rgba(95, 31, 34, 0.02);
}

.category-tree-item.open .category-tree-children {
  display: block;
}

.category-tree-child {
  display: block;
  width: 100%;
  padding: 10px 16px 10px 44px;
  font-size: var(--font-size-caption);
  font-weight: 400;
  color: var(--color-muted);
  border-radius: 0;
  transition: all var(--transition-base);
  border-left: 4px solid transparent;
  margin-left: 0;
  cursor: pointer;
  background: transparent;
  border-top: none;
  border-right: none;
  border-bottom: none;
  text-align: left;
  position: relative;
}

.category-tree-child::before {
  content: '·';
  position: absolute;
  left: 28px;
  color: var(--color-primary);
  font-size: 16px;
  line-height: 1;
}

.category-tree-child:hover {
  color: var(--color-text);
  background-color: rgba(95, 31, 34, 0.04);
}

.category-tree-child.active {
  color: var(--color-primary);
  font-weight: 600;
  border-left-color: var(--color-primary);
  background-color: rgba(95, 31, 34, 0.06);
}

.products-main {
  padding-left: var(--space-xl);
}

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

.product-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.product-list-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

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

.product-list-card-image {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--color-light-bg);
}

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

.product-list-card:hover .product-list-card-image img {
  transform: scale(1.05);
}

.product-list-card-content {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-list-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.product-list-card-desc {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: var(--space-sm);
}

.product-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: var(--font-size-body);
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pagination-numbers {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.pagination-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: var(--font-size-body);
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-num:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-num.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.sidebar-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-caption);
  font-weight: 600;
  margin-bottom: var(--space-md);
  cursor: pointer;
  border: none;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1001;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.sidebar-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* ===== ABOUT TIMELINE ===== */
.about-timeline {
  padding: var(--space-4xl) 0;
  background-color: var(--color-light-bg);
}

.timeline-scroll {
  padding: var(--space-lg) 0;
}

.timeline-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  position: relative;
}

.timeline-track::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-border);
  z-index: 0;
}

.timeline-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.timeline-card-year {
  font-size: var(--font-size-h3);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.3px;
  text-align: center;
  z-index: 1;
  background: var(--color-light-bg);
  padding: 0 var(--space-sm);
}

.timeline-card-connector {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
  margin-bottom: var(--space-sm);
  z-index: 1;
}

.timeline-card-body {
  background: var(--color-bg);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  width: 100%;
}

.timeline-year {
  font-size: var(--font-size-h3);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.3px;
}

.timeline-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.timeline-desc {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.8;
}

/* ===== ABOUT CAPABILITY (Background Image + White Cards) ===== */
.about-capability {
  position: relative;
  padding: var(--space-4xl) 0;
  overflow: hidden;
}

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

.capability-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.capability-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  z-index: 1;
}

.capability-content {
  position: relative;
  z-index: 2;
}

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

.capability-header .section-title {
  color: #ffffff;
}

.capability-header .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

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

.capability-card {
  background-color: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.capability-card-icon {
  width: 56px;
  height: 56px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
}

.capability-card-icon svg {
  width: 28px;
  height: 28px;
}

.capability-card-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.capability-card-desc {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  line-height: 1.6;
}

/* ===== ABOUT INTRO (Left Text + Right Image) ===== */
.about-intro {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg);
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-intro-text .section-title {
  text-align: left;
}

.about-intro-text .topline {
  display: inline-block;
}

.about-intro-desc {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.8;
  margin-top: var(--space-md);
}

.about-intro-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-intro-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ===== ABOUT MARKET (Dark Section) ===== */
.about-market {
  padding: var(--space-4xl) 0;
  background-color: var(--color-dark-bg);
  background-image: url('/AppUpload/Image/338e71db5b3245a0b376a412878e79bf.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #ffffff;
  position: relative;
}

.about-market::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(95, 31, 34, 0.85);
  z-index: 0;
}

.about-market .container {
  position: relative;
  z-index: 1;
}

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

.market-header .section-title {
  color: #ffffff;
}

.market-header .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
  margin-left: auto;
  margin-right: auto;
}

.market-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.market-stat {
  text-align: center;
  padding: var(--space-lg);
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.market-stat:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(245, 243, 124, 0.3);
  transform: translateY(-2px);
}

.market-stat-number {
  display: block;
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  color: var(--color-secondary);
  line-height: 1;
  margin-bottom: var(--space-xs);
  letter-spacing: -1px;
}

.market-stat-unit {
  font-size: 0.5em;
  font-weight: 700;
}

.market-stat-label {
  font-size: var(--font-size-caption);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

/* ===== ABOUT VALUES ===== */
.about-values {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg);
}

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

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.value-item {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.value-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 0 0 2px 2px;
}

.value-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.value-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.value-desc {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  line-height: 1.6;
}

@media (max-width: 1299px) {
  .container {
    padding: 0 32px;
  }
  
  .header-inner {
    padding: 0 32px;
  }
  
  .hero-content {
    padding: 0 32px;
  }
}

@media (max-width: 1024px) {
  .container {
    padding: 0 32px;
  }

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

  .subcategory-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .subcategory-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .category-showcase,
  .category-showcase--reverse {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .category-showcase--reverse .category-showcase-image {
    order: 0;
  }

  .category-showcase--reverse .category-showcase-content {
    order: 0;
  }

  .category-features {
    grid-template-columns: 1fr;
  }
  
  .strength-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .showcase-item,
  .showcase-item.showcase-right {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .showcase-item.showcase-right .showcase-image {
    order: 0;
  }
  
  .showcase-item.showcase-right .showcase-content {
    order: 0;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .products-layout {
    grid-template-columns: 220px 1fr;
  }

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

  .products-main {
    padding-left: var(--space-lg);
  }

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

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

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

  .product-detail-title {
    font-size: 40px;
  }
}

@media (max-width: 767px) {
  :root {
    --header-height: 60px;
    --space-3xl: 24px;
    --space-4xl: 32px;
  }

  .container {
    padding: 0 16px;
  }
  
  .header-inner {
    padding: 0 16px;
  }
  
  .hero-content {
    padding: 0 16px;
  }
  
  .header-logo img {
    height: 36px;
  }

  .header-menu-btn {
    display: flex;
  }
  
  .header-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ffffff;
    padding: var(--space-md);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: visible;
    z-index: 999;
    display: block;
    height: calc(100vh - var(--header-height));
  }
  
  .header-nav.open {
    transform: translateX(0);
  }
  
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    display: flex;
    height: 100%;
    justify-content: flex-start;
  }
  
  .nav-item {
    width: 100%;
    flex-shrink: 0;
  }
  
  .nav-link {
    display: block;
    padding: 14px 12px;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
    text-align: left;
  }
  
  .nav-dropdown .dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    padding-left: var(--space-md);
    display: none;
    margin-top: 0;
  }
  
  .nav-dropdown.open .dropdown-menu {
    display: block;
  }

  /* ===== 首页移动端优化 ===== */
  
  /* Hero Banner - 调整为更适合移动端的宽高比 */
  .hero {
    height: auto;
    min-height: auto;
    aspect-ratio: 16 / 9;
    margin-top: var(--header-height);
  }

  .hero-bg img {
    object-position: center;
  }

  .hero-scroll {
    display: none;
  }

  /* Section 标题优化 */
  .section-header {
    margin-bottom: 20px;
  }

  .section-title {
    font-size: 22px;
    margin-bottom: 6px;
    line-height: 1.3;
  }

  .section-subtitle {
    font-size: 13px;
    line-height: 1.5;
  }

  .topline {
    font-size: 11px;
    margin-bottom: 6px;
    padding: 3px 8px;
  }

  /* 产品网格 - 2列紧凑布局 */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .product-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 首页核心产品板块 - 2列布局 */
  .product-overview .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .product-card-content {
    padding: 10px;
  }

  .product-card-title {
    font-size: 13px;
    margin-bottom: 4px;
    line-height: 1.3;
  }

  .product-card-desc {
    font-size: 11px;
    line-height: 1.4;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .card-link {
    font-size: 11px;
  }

  /* 核心产品列表卡片 */
  .product-list-card-content {
    padding: 10px;
  }

  .product-list-card-title {
    font-size: 13px;
    margin-bottom: 4px;
    line-height: 1.3;
  }

  .product-list-card-desc {
    font-size: 11px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  /* 企业实力 Section */
  .strength-grid {
    gap: 20px;
  }

  .strength-content .section-title {
    font-size: 22px;
  }

  .strength-text {
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 16px;
  }

  /* 统计数据 - 横向3列紧凑布局 */
  .strength-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }

  .stat-item {
    padding: 10px 6px;
  }

  .stat-number {
    font-size: 22px;
    margin-bottom: 4px;
  }

  .stat-unit {
    font-size: 0.5em;
  }

  .stat-label {
    font-size: 10px;
  }

  /* 产品系列 Section */
  .product-showcase {
    padding: var(--space-3xl) 0;
  }

  /* 关于我们 Section */
  .about-teaser {
    padding: var(--space-3xl) 0;
  }

  .about-grid {
    gap: 16px;
  }

  .about-image {
    border-radius: var(--radius-sm);
  }

  .about-content .section-title {
    font-size: 22px;
  }

  .about-text {
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 6px;
  }

  .about-content .btn {
    padding: 10px 20px;
    font-size: 13px;
    margin-top: 8px;
  }

  /* Section 整体间距 */
  .product-overview,
  .strength,
  .product-showcase,
  .about-teaser {
    padding: var(--space-3xl) 0;
  }

  /* ===== 其他页面移动端适配 ===== */

  .about-intro-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .about-intro-image {
    order: -1;
  }

  .about-intro-text .section-title {
    font-size: 22px;
  }

  .about-intro-desc {
    font-size: 13px;
    line-height: 1.6;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-about {
    max-width: 100%;
  }

  .footer-logo {
    height: 40px;
    margin-bottom: 12px;
  }

  .footer-desc {
    font-size: 12px;
  }

  .footer-title {
    font-size: 14px;
    margin-bottom: 10px;
  }

  .footer-links a,
  .footer-contact a,
  .footer-contact li {
    font-size: 12px;
  }

  .footer-links li,
  .footer-contact li {
    margin-bottom: 6px;
  }

  .footer-bottom {
    font-size: 11px;
    padding-top: 16px;
  }

  .products-layout {
    grid-template-columns: 1fr;
    padding: var(--space-lg) 0 var(--space-2xl);
  }

  .products-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    max-height: 100vh;
    background-color: #FAF7F2;
    z-index: 1002;
    padding: var(--space-lg);
    padding-top: var(--space-xl);
    border-radius: 0;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .products-sidebar.open {
    transform: translateX(0);
  }

  .sidebar-toggle {
    display: inline-flex;
    margin-bottom: var(--space-sm);
  }

  .sidebar-close {
    display: flex;
  }

  .sidebar-overlay {
    display: block;
  }

  .products-main {
    padding-left: 0;
  }

  /* 产品列表页网格 - 2列布局 */
  .products-main .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .product-list-card-image {
    aspect-ratio: 1/1;
  }

  .product-pagination {
    gap: 6px;
    margin-top: var(--space-lg);
  }

  .pagination-btn,
  .pagination-num {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .capability-card {
    padding: var(--space-md);
  }

  .capability-card-icon {
    width: 44px;
    height: 44px;
    margin-bottom: 10px;
  }

  .capability-card-icon svg {
    width: 22px;
    height: 22px;
  }

  .capability-card-title {
    font-size: 16px;
  }

  .capability-card-desc {
    font-size: 12px;
  }

  .market-stats {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .market-stat {
    padding: var(--space-md);
  }

  .market-stat-number {
    font-size: 32px;
  }

  .market-stat-label {
    font-size: 12px;
  }

  .values-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .value-item {
    padding: var(--space-md);
  }

  .value-title {
    font-size: 16px;
  }

  .value-desc {
    font-size: 12px;
  }

  .timeline-track {
    grid-template-columns: 1fr;
  }

  .contact-cta-phone a {
    font-size: var(--font-size-h2);
  }

  /* 产品详情页移动端 */
  .product-breadcrumb {
    padding: var(--space-xs) 0;
    margin-top: var(--header-height);
  }

  .breadcrumb-list {
    font-size: 11px;
    gap: 6px;
  }

  .product-detail-hero {
    padding: var(--space-lg) 0;
  }

  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .product-detail-title {
    font-size: 22px;
    line-height: 1.3;
  }

  .product-detail-body {
    font-size: 13px;
    line-height: 1.7;
  }

  .product-detail-actions {
    flex-direction: column;
  }

  .product-detail-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 20px;
    font-size: 14px;
  }

  .product-detail-thumbnails {
    gap: 6px;
    padding: 8px;
  }

  .product-detail-thumbnail {
    width: 52px;
    height: 52px;
  }

  .product-features-section,
  .product-specs-section,
  .product-specs-table-section {
    padding: var(--space-xl) 0;
  }

  .product-features-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .product-features-section .product-feature-item {
    padding: var(--space-sm);
  }

  .product-feature-icon {
    width: 32px;
    height: 32px;
  }

  .product-feature-icon svg {
    width: 16px;
    height: 16px;
  }

  .product-feature-text {
    font-size: 13px;
  }

  .product-specs-table th,
  .product-specs-table td {
    padding: 10px 12px;
    font-size: 13px;
  }

  .product-specs-compare-table th,
  .product-specs-compare-table td {
    padding: 8px 10px;
    font-size: 12px;
  }

  .product-specs-compare-table {
    min-width: 100%;
  }

  /* 联系页移动端 */
  .contact-section {
    padding: var(--space-2xl) 0;
  }

  .contact-card-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .contact-card-row {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  .contact-card {
    padding: var(--space-md);
  }

  .contact-card-icon {
    width: 44px;
    height: 44px;
  }

  .contact-card-icon svg {
    width: 20px;
    height: 20px;
  }

  .contact-card-title {
    font-size: 12px;
  }

  .contact-card-value {
    font-size: 14px;
  }

  .contact-map-section {
    padding: var(--space-2xl) 0;
  }

  .contact-map {
    height: 220px;
  }

  /* Page Hero 移动端 */
  .page-hero {
    min-height: 200px;
    height: auto;
    aspect-ratio: 16 / 9;
    margin-top: var(--header-height);
  }

  .page-hero-title {
    font-size: 22px;
    line-height: 1.3;
  }

  .page-hero-subtitle {
    font-size: 13px;
    line-height: 1.5;
  }

  /* 按钮移动端 */
  .btn {
    padding: 10px 20px;
    font-size: 13px;
  }

  .btn-primary,
  .btn-outline-light {
    padding: 10px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .reveal {
    opacity: 1;
    transform: none;
  }
  
  html {
    scroll-behavior: auto;
  }
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}

/* ===== PRODUCT DETAIL PAGE ===== */
.product-breadcrumb {
  background-color: var(--color-light-bg);
  padding: var(--space-sm) 0;
  margin-top: var(--header-height);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  flex-wrap: wrap;
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.breadcrumb-list li:not(:last-child)::after {
  content: '→';
  color: var(--color-muted);
}

.breadcrumb-list a {
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

.breadcrumb-list a:hover {
  color: var(--color-primary);
}

.breadcrumb-list li[aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

.product-detail-hero {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 4fr 3fr;
  gap: var(--space-xl);
  align-items: start;
}

.product-detail-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-color: var(--color-light-bg);
}

.product-detail-main-image {
  width: 100%;
}

.product-detail-main-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.product-detail-video {
  width: 100%;
  height: auto;
  display: block;
  max-height: 600px;
  object-fit: contain;
  background-color: #000;
}

.product-detail-video-wrapper {
  position: relative;
}

.product-detail-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  pointer-events: none;
  transition: background-color var(--transition-fast);
}

.product-detail-video-wrapper:hover .product-detail-play-btn {
  background-color: rgba(0, 0, 0, 0.8);
}

.product-detail-thumb-video {
  position: relative;
  width: 100%;
  height: 100%;
}

.product-detail-thumb-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  pointer-events: none;
}

.product-detail-thumbnails {
  display: flex;
  gap: 8px;
  padding: 12px;
  overflow-x: auto;
  background-color: var(--color-bg);
}

.product-detail-thumbnail {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  background: none;
  padding: 0;
}

.product-detail-thumbnail:hover {
  border-color: var(--color-primary);
}

.product-detail-thumbnail.active {
  border-color: var(--color-primary);
}

.product-detail-thumbnail img,
.product-detail-thumbnail video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-detail-thumb-badge {
  position: absolute;
  top: 2px;
  left: 2px;
  background-color: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 10px;
  padding: 1px 4px;
  border-radius: 2px;
  line-height: 1.4;
}

.product-detail-no-image {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
  color: var(--color-muted);
  font-size: var(--font-size-body);
}

.product-detail-body {
  font-size: var(--font-size-body);
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
}

.product-detail-body img {
  max-width: 100%;
  height: auto;
}

.product-detail-body p {
  margin-bottom: var(--space-sm);
}

.product-detail-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.product-detail-title {
  font-size: 52px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.product-detail-desc {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
}

.product-detail-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.product-detail-content .product-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--font-size-caption);
  color: var(--color-text);
  line-height: 1.5;
}

.product-detail-content .product-feature-item::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  min-width: 6px;
  background-color: #5f1f22;
  border-radius: 1px;
  margin-top: 7px;
}

.product-features-section .product-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.product-features-section .product-feature-item::before {
  display: none;
}

.product-detail-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

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

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

.product-specs-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-light-bg);
}

.product-specs-table-wrapper {
  overflow-x: auto;
  margin-top: var(--space-lg);
}

.product-specs-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.product-specs-table thead {
  background-color: #5f1f22;
  color: #ffffff;
}

.product-specs-table th {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-weight: 600;
  font-size: var(--font-size-body);
}

.product-specs-table td {
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-body);
}

.product-specs-table tbody tr:hover {
  background-color: var(--color-light-bg);
}

.product-specs-table td:first-child {
  font-weight: 500;
  color: var(--color-muted);
}

.product-specs-table td:last-child {
  font-weight: 600;
  color: var(--color-text);
}

/* 技术参数表格（多型号对比） */
.product-specs-table-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-light-bg);
}

.product-specs-table-scroll {
  overflow-x: auto;
  margin-top: var(--space-lg);
}

.product-specs-compare-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
  min-width: 600px;
}

.product-specs-compare-table th,
.product-specs-compare-table td {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-body);
  text-align: center;
}

.product-specs-compare-table th.specs-table-label {
  text-align: left;
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-light-bg);
  min-width: 120px;
}

.product-specs-compare-table tbody tr:first-child th,
.product-specs-compare-table tbody tr:first-child td {
  font-weight: 700;
  background-color: var(--color-primary);
  color: #ffffff;
}

.product-specs-compare-table tbody tr:first-child th.specs-table-label {
  background-color: var(--color-primary-dark);
}

@media (max-width: 767px) {
  .product-specs-compare-table th,
  .product-specs-compare-table td {
    padding: 8px 12px;
    font-size: 13px;
  }
}

/* 产品特点模块 */
.product-features-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg);
}

.product-features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.product-features-section .product-feature-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.product-feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-feature-text {
  font-size: var(--font-size-body);
  color: var(--color-text);
  line-height: 1.6;
  padding-top: 8px;
}

@media (max-width: 767px) {
  .product-features-list {
    grid-template-columns: 1fr;
  }
}

.product-related-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg);
}

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

@media (max-width: 1024px) {
  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .product-detail-title {
    font-size: 32px;
  }

  .product-detail-hero {
    padding: var(--space-xl) 0;
  }

  .product-specs-section,
  .product-features-section,
  .product-specs-table-section {
    padding: var(--space-2xl) 0;
  }

  .product-detail-thumbnails {
    gap: 6px;
    padding: 8px;
  }

  .product-detail-thumbnail {
    width: 64px;
    height: 64px;
  }
}

@media (max-width: 767px) {
  .product-detail-actions {
    flex-direction: column;
  }

  .product-detail-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .product-detail-title {
    font-size: 24px;
  }

  .product-detail-hero {
    padding: var(--space-lg) 0;
  }

  .product-specs-section,
  .product-features-section,
  .product-specs-table-section {
    padding: var(--space-xl) 0;
  }

  .product-features-list {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .product-feature-item {
    padding: var(--space-sm);
  }

  .product-specs-compare-table th,
  .product-specs-compare-table td {
    padding: 6px 8px;
    font-size: 12px;
  }

  .product-specs-compare-table {
    min-width: 100%;
  }

  .product-detail-thumbnails {
    gap: 4px;
    padding: 6px;
  }

  .product-detail-thumbnail {
    width: 48px;
    height: 48px;
  }

  .contact-section {
    padding: var(--space-2xl) 0;
  }

  .contact-card {
    padding: var(--space-md);
  }

  .contact-card-icon {
    width: 44px;
    height: 44px;
  }

  .contact-map-section {
    padding: var(--space-2xl) 0;
  }

  .contact-map {
    height: 220px;
  }

  .page-hero {
    min-height: 240px;
  }

  .page-hero-title {
    font-size: 24px;
  }

  .page-hero-subtitle {
    font-size: 14px;
  }

  .section-title {
    font-size: 20px;
    margin-bottom: 12px;
  }

  .section-subtitle {
    font-size: 13px;
    line-height: 1.5;
  }

  .stat-item {
    padding: var(--space-md);
  }

  .stat-number {
    font-size: 24px;
  }

  .stat-label {
    font-size: 12px;
  }

  .stat-item {
    padding: 12px;
  }

  .footer-logo {
    height: 44px;
  }

  .footer-col {
    margin-bottom: 16px;
  }

  .footer-links li,
  .footer-contact li {
    margin-bottom: 6px;
  }
}

/* ===== CONTACT PAGE ===== */
.contact-section {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg);
}

.contact-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: 40px;
}

.contact-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  text-align: center;
}

.contact-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.contact-card--wide {
  grid-column: 1 / -1;
}

.contact-card-row {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  align-self: start;
}

.contact-card-icon {
  width: 56px;
  height: 56px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  color: var(--color-secondary);
}

.contact-card-title {
  font-size: var(--font-size-caption);
  font-weight: 600;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.3px;
}

.contact-card-value {
  font-size: var(--font-size-body);
  color: var(--color-text);
  line-height: 1.6;
  font-weight: 500;
}

.contact-card-value a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.contact-card-value a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.contact-map-section {
  padding: var(--space-3xl) 0;
  background-color: var(--color-light-bg);
}

.map-container {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.contact-map {
  width: 100%;
  height: 400px;
}

.map-placeholder {
  position: relative;
  padding-top: 40%;
  background-color: var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-placeholder-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-lg);
}

.map-icon {
  font-size: 48px;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.map-address {
  font-size: var(--font-size-body);
  color: var(--color-text);
  line-height: 1.6;
  font-weight: 500;
  margin-bottom: 4px;
}

.map-company {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  line-height: 1.5;
}

@media (max-width: 1024px) {
  .contact-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-card--wide {
    grid-column: auto;
  }
}