/* ============================================================
   喜雀集团官网 v6.0 - 高端墨绿金典风
   设计语言：深邃墨绿 · 鎏金点缀 · 高端质感
   ============================================================ */

/* ---------- CSS 变量 ---------- */
:root {
  /* 品牌色 - 墨绿金典 */
  --color-primary: #1E4D40;        /* 主色-深墨绿 */
  --color-primary-light: #2E6D5C;  /* 主色-浅墨绿 */
  --color-primary-dark: #12362B;   /* 主色-深 */
  --color-primary-bg: #1A4437;     /* 页面背景-墨绿 */
  --color-primary-bg-light: #235244; /* 浅色块背景 */
  --color-accent: #C9A962;         /* 点缀-鎏金 */
  --color-accent-light: #E0C98F;   /* 点缀-浅金 */
  --color-accent-dark: #A88B4A;    /* 点缀-深金 */

  /* 中性色 - 适配深色背景 */
  --color-white: #FFFFFF;
  --color-gray-50: #F5F2EA;        /* 米白偏金 */
  --color-gray-100: #E8E4D8;
  --color-gray-200: #D4CFC0;
  --color-gray-300: #B8B3A3;
  --color-gray-400: #9A9588;
  --color-gray-500: #7A7568;
  --color-gray-600: #5A574D;
  --color-gray-700: #3D3B33;
  --color-gray-800: #2A2924;
  --color-gray-900: #1A1915;

  /* 功能色 */
  --color-success: #3D9970;
  --color-warning: #E0C98F;
  --color-danger: #C25450;
  --color-info: #5B8FB9;

  /* 字体 */
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-num: 'DIN Alternate', 'Helvetica Neue', Arial, sans-serif;

  /* 字号 */
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-md: 18px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 32px;
  --fs-3xl: 42px;
  --fs-4xl: 56px;

  /* 间距 */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 96px;
  --space-3xl: 128px;

  /* 布局 */
  --container-width: 1200px;
  --nav-height: 80px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.15);

  /* 动效 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 0.2s;
  --duration-base: 0.3s;
  --duration-slow: 0.5s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--color-gray-100);
  background: var(--color-primary-bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--duration-fast) var(--ease); }
a:hover { color: var(--color-accent); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; font-size: inherit; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); font-weight: 600; line-height: 1.3; color: var(--color-white); }
p { margin-bottom: var(--space-sm); }

/* ---------- 通用工具 ---------- */
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 var(--space-md); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* 滚动显现 */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.reveal.visible { 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; }

/* ---------- 顶部信息条 ---------- */
.top-bar {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--fs-xs);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.top-bar-left span { margin-right: var(--space-md); }
.top-bar a { color: rgba(255, 255, 255, 0.8); }
.top-bar a:hover { color: var(--color-accent); }

/* ---------- 导航栏 ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  transition: box-shadow var(--duration-base) var(--ease);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}
.nav-logo-img {
  height: 44px;
  width: auto;
}
.nav-logo-text {
  display: flex;
  flex-direction: column;
}
.nav-logo-cn {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 2px;
}
.nav-logo-en {
  font-size: 11px;
  color: var(--color-gray-500);
  letter-spacing: 3px;
  text-transform: uppercase;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-item {
  position: relative;
}
.nav-link {
  display: block;
  padding: 0 var(--space-md);
  line-height: var(--nav-height);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-gray-800);
  transition: color var(--duration-fast) var(--ease);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--duration-base) var(--ease);
}
.nav-link:hover,
.nav-item.active .nav-link {
  color: var(--color-primary);
}
.nav-link:hover::after,
.nav-item.active .nav-link::after {
  width: 30px;
}
.nav-cta {
  padding: 10px 28px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--duration-base) var(--ease);
  margin-left: var(--space-md);
}
.nav-cta:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ---------- Hero Banner ---------- */
.hero {
  position: relative;
  height: 560px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}
.hero .container {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}
.hero-content {
  max-width: 640px;
  color: var(--color-white);
}
.hero-eyebrow {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: var(--fs-xs);
  letter-spacing: 2px;
  margin-bottom: var(--space-md);
}
.hero-title {
  font-family: var(--font-serif);
  font-size: var(--fs-4xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}
.hero-title em {
  font-style: normal;
  color: var(--color-accent);
}
.hero-desc {
  font-size: var(--fs-md);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-lg);
}
.hero-buttons {
  display: flex;
  gap: var(--space-sm);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 36px;
  font-size: var(--fs-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--duration-base) var(--ease);
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  color: var(--color-white);
}

/* ---------- 今日要闻跑马灯 ---------- */
.news-ticker {
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
  padding: 14px 0;
  overflow: hidden;
}
.news-ticker .container {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.ticker-label {
  flex-shrink: 0;
  padding: 4px 12px;
  background: var(--color-danger);
  color: var(--color-white);
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.ticker-track {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
}
.ticker-content {
  display: inline-block;
  animation: tickerScroll 30s linear infinite;
}
.ticker-item {
  display: inline-block;
  margin-right: 60px;
  font-size: var(--fs-sm);
  color: var(--color-gray-700);
}
.ticker-item span {
  color: var(--color-accent-dark);
  font-weight: 600;
  margin-right: 8px;
}
@keyframes tickerScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- 通用区块标题 ---------- */
.section {
  padding: var(--space-2xl) 0;
}
.section-gray {
  background: var(--color-gray-50);
}
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}
.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  color: var(--color-accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  font-weight: 600;
}
.section-title {
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}
.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  margin: var(--space-sm) auto 0;
}
.section-desc {
  font-size: var(--fs-sm);
  color: var(--color-gray-300);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- 产品矩阵 ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  transition: all var(--duration-base) var(--ease);
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--duration-base) var(--ease);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}
.product-card:hover::before {
  transform: scaleX(1);
}
.product-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  transition: all var(--duration-base) var(--ease);
}
.product-card:hover .product-icon {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  transform: scale(1.1);
}
.product-name {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}
.product-desc {
  font-size: var(--fs-sm);
  color: var(--color-gray-600);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.product-more {
  font-size: var(--fs-sm);
  color: var(--color-accent-dark);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.product-more::after {
  content: '→';
  transition: transform var(--duration-fast) var(--ease);
}
.product-card:hover .product-more::after {
  transform: translateX(4px);
}

/* ---------- 关于集团 ---------- */
.about-section {
  background: var(--color-white);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.about-image {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}
.about-image::after {
  content: '';
  position: absolute;
  top: 20px; left: 20px; right: -20px; bottom: -20px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  z-index: -1;
}
.about-content .section-label { text-align: left; }
.about-content .section-title { text-align: left; }
.about-content .section-title::after { margin-left: 0; }
.about-content p {
  color: var(--color-gray-700);
  line-height: 1.9;
  margin-bottom: var(--space-md);
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-gray-200);
}
.about-stat-num {
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.about-stat-label {
  font-size: var(--fs-xs);
  color: var(--color-gray-600);
}

/* ---------- 新闻中心 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.news-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration-base) var(--ease);
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gray-300);
}
.news-thumb {
  height: 180px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  position: relative;
  overflow: hidden;
}
.news-thumb::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.3));
}
.news-cat {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 2;
  padding: 4px 10px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.news-body { padding: var(--space-md); }
.news-date {
  font-size: var(--fs-xs);
  color: var(--color-gray-500);
  margin-bottom: 8px;
}
.news-title {
  font-family: var(--font-serif);
  font-size: var(--fs-md);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-gray-900);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--duration-fast) var(--ease);
}
.news-card:hover .news-title { color: var(--color-accent-dark); }
.news-summary {
  font-size: var(--fs-sm);
  color: var(--color-gray-600);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-more-link {
  text-align: center;
  margin-top: var(--space-lg);
}
.news-more-link a {
  display: inline-block;
  padding: 12px 40px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  transition: all var(--duration-base) var(--ease);
}
.news-more-link a:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ---------- 新闻Tab列表（墨绿金典风格） ---------- */
.news-section {
  background: var(--color-primary-bg);
  padding-top: 30px;
  padding-bottom: 30px;
}
.news-section .section-header {
  margin-bottom: 24px;
}
.news-section .section-title {
  font-size: 24px;
  color: var(--color-white);
}
.news-section .section-label {
  margin-bottom: 8px;
  color: var(--color-accent);
}
.news-section .section-desc {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-gray-400);
}
.news-tabs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 24px;
  margin-top: 0;
}
.news-tab-block {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-bg-light) 0%, var(--color-primary-bg) 100%);
  padding: 20px 22px 14px;
  border: none;
  border-radius: 8px;
  overflow: hidden;
}
.news-tab-block::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent) 0%, transparent 60%);
}
.news-tab-block::after {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--color-accent) 0%, transparent 60%);
}
.news-tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  padding-left: 4px;
  border-bottom: none;
  margin-bottom: 0;
  position: relative;
  z-index: 1;
}
.news-tab-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent-light);
  margin: 0;
  position: relative;
  padding-left: 0;
}
.news-tab-title::before {
  display: none;
}
.news-tab-more {
  font-size: 12px;
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
.news-tab-more:hover {
  color: var(--color-accent-light);
}
.news-tab-nav {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  margin: 8px 0 4px;
  border-radius: 2px;
}
.news-tab-nav.news-tab-nav-4 .news-tab-item {
  flex: 1;
  padding: 7px 6px;
  font-size: 12px;
}
.news-tab-item {
  flex: 1;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--color-gray-400);
  cursor: pointer;
  text-align: center;
  font-weight: 500;
  transition: all 0.2s;
  user-select: none;
}
.news-tab-item:hover {
  color: var(--color-accent);
}
.news-tab-item.active {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-weight: 600;
}
.news-tab-content {
  min-height: auto;
}
.news-tab-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: none;
}
.news-tab-list.active {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 16px;
}
.news-tab-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 2px;
  border-bottom: 1px dashed rgba(201, 169, 98, 0.15);
  transition: background 0.2s;
}
.news-tab-list li:hover {
  background: rgba(201, 169, 98, 0.08);
}
.news-tab-list li:last-child,
.news-tab-list li:nth-last-child(2) {
  border-bottom: none;
}
.news-tab-list li a {
  flex: 1;
  color: var(--color-gray-200);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s;
}
.news-tab-list li a:hover {
  color: var(--color-accent-light);
}
.news-tab-tag {
  color: var(--color-accent);
  font-weight: 500;
  margin-right: 3px;
  font-size: 12px;
}
.news-tab-date {
  color: var(--color-gray-500);
  font-size: 12px;
  margin-left: 8px;
  flex-shrink: 0;
  font-family: var(--font-num);
}

/* 响应式 */
@media (max-width: 900px) {
  .news-tabs-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* ---------- 合作客户 ---------- */
.clients-section {
  background: var(--color-white);
}
.clients-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--color-gray-200);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.client-item {
  background: var(--color-white);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-base) var(--ease);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  height: 80px;
}
.client-item:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

/* ---------- CTA 区块 ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: var(--space-xl) 0;
  text-align: center;
  color: var(--color-white);
}
.cta-title {
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-white);
}
.cta-desc {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-lg);
}
.cta-section .btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.cta-section .btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: var(--space-xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
}
.footer-brand p {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--space-sm);
}
.footer-col h4 {
  font-family: var(--font-serif);
  font-size: var(--fs-md);
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-weight: 600;
}
.footer-col a {
  display: block;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.6);
  padding: 5px 0;
  transition: color var(--duration-fast) var(--ease);
}
.footer-col a:hover {
  color: var(--color-accent);
}
.footer-contact-item {
  display: flex;
  gap: 10px;
  font-size: var(--fs-sm);
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.6);
}
.footer-contact-item strong {
  color: var(--color-white);
  font-weight: 500;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-md) 0;
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.4);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  background: var(--color-gray-50);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-gray-200);
  font-size: var(--fs-sm);
  color: var(--color-gray-600);
}
.breadcrumb a { color: var(--color-gray-600); }
.breadcrumb a:hover { color: var(--color-accent-dark); }
.breadcrumb .current { color: var(--color-primary); font-weight: 500; }
.breadcrumb-sep { margin: 0 8px; color: var(--color-gray-400); }

/* ---------- 内页通用 ---------- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  padding: var(--space-xl) 0;
  color: var(--color-white);
  text-align: center;
}
.page-header h1 {
  font-family: var(--font-serif);
  font-size: var(--fs-3xl);
  color: var(--color-white);
  margin-bottom: var(--space-xs);
}
.page-header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-sm);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  :root { --container-width: 100%; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .clients-grid { grid-template-columns: repeat(4, 1fr); }
  .hero { height: 480px; }
  .hero-title { font-size: var(--fs-3xl); }
  .nav-menu { display: none; }
}

@media (max-width: 768px) {
  :root {
    --space-2xl: 64px;
    --space-xl: 48px;
  }
  .products-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .clients-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .hero { height: 400px; }
  .hero-title { font-size: var(--fs-2xl); }
  .hero-desc { font-size: var(--fs-sm); }
  .top-bar { display: none; }
  .section-title { font-size: var(--fs-xl); }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}