/* ========================================
   陕西韩城西韩工贸集团有限责任公司官网
   核心 CSS 系统 v1.0
   ======================================== */

/* ========== 1. CSS 变量系统 (根元素) ========== */
:root {
  /* 颜色变量 */
  --color-primary: #003366;           /* 深海蓝 - 主色 */
  --color-accent: #FF9900;            /* 活力金/橙 - 强调色 */
  --color-bg-light: #F8F8F8;          /* 浅灰色 - 背景 */
  --color-bg-dark: #1E1E1E;           /* 深灰色 - 深色背景 */
  --color-text-dark: #333333;         /* 深灰 - 主文字 */
  --color-text-light: #FFFFFF;        /* 白色 - 浅色背景上的文字 */
  --color-border: #DDDDDD;            /* 边框颜色 */
  --color-success: #28A745;           /* 成功绿 */
  --color-warning: #FFC107;           /* 警告黄 */
  --color-error: #DC3545;             /* 错误红 */
  --color-gradient-start: rgba(0, 51, 102, 0.92);
  --color-gradient-end: rgba(0, 51, 102, 0.75);
  --color-glass: rgba(255, 255, 255, 0.08);

  /* 字体变量 */
  --font-family-main: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: 'Arial Black', 'Microsoft YaHei', sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-xxl: 32px;
  --font-weight-normal: 400;
  --font-weight-bold: 700;

  /* 间距变量 */
  --spacing-unit: 8px;
  --spacing-xs: calc(var(--spacing-unit) * 0.5);    /* 4px */
  --spacing-sm: var(--spacing-unit);                /* 8px */
  --spacing-md: calc(var(--spacing-unit) * 2);      /* 16px */
  --spacing-lg: calc(var(--spacing-unit) * 3);      /* 24px */
  --spacing-xl: calc(var(--spacing-unit) * 4);      /* 32px */
  --spacing-xxl: calc(var(--spacing-unit) * 6);     /* 48px */

  /* 圆角变量 */
  --border-radius-base: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;

  /* 阴影变量 */
  --box-shadow-base: 0 4px 8px rgba(0, 0, 0, 0.1);
  --box-shadow-md: 0 8px 16px rgba(0, 0, 0, 0.15);
  --box-shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.2);

  /* 过渡效果 */
  --transition-base: all 0.3s ease;
  --transition-fast: all 0.15s ease;
  --transition-slow: all 0.5s ease;

  /* 响应式断点 */
  --breakpoint-mobile: 480px;
  --breakpoint-tablet: 768px;
  --breakpoint-desktop: 1024px;
  --breakpoint-wide: 1440px;
}

/* ========== 2. 全局样式重置 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family-main);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
  overflow-x: hidden;
  padding-top: 90px;
}

body.menu-open {
  overflow: hidden;
}

/* 清除默认链接样式 */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover {
  color: var(--color-accent);
}

/* 清除列表样式 */
ul, ol {
  list-style: none;
}

/* 清除按钮默认样式 */
button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* 清除输入框默认样式 */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* ========== 3. 响应式 Grid 布局系统 ========== */

/* 容器 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

/* Grid 系统 */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

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

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

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

/* Flex 布局 */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

/* ========== 4. 固定导航栏 ========== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 74px;
  background: rgba(2, 22, 48, 0.92);
  backdrop-filter: blur(14px);
  color: var(--color-text-light);
  z-index: 1000;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 153, 0, 0.6), transparent);
  pointer-events: none;
}

.navbar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-lg);
  max-width: 1420px;
  margin: 0 auto;
}

.navbar-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-light);
  text-decoration: none;
}

.navbar-logo-mark {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 153, 0, 0.85), rgba(255, 115, 0, 0.75));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: 18px;
  letter-spacing: 1px;
  box-shadow: 0 8px 16px rgba(255, 153, 0, 0.4);
}

.navbar-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.navbar-logo-title {
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 1px;
}

.navbar-logo-subtitle {
  font-size: 10px;
  letter-spacing: 2px;
  opacity: 0.65;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.navbar-dropdown {
  position: relative;
}

.navbar-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.78);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.5px;
  padding: var(--spacing-sm) 0;
  transition: var(--transition-base);
}

.navbar-dropdown-toggle::after {
  content: '▾';
  font-size: 10px;
  transform: translateY(-1px);
}

.navbar-dropdown:hover .navbar-dropdown-toggle,
.navbar-dropdown.open .navbar-dropdown-toggle {
  color: var(--color-accent);
}

.navbar-dropdown-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 0;
  min-width: 220px;
  background: rgba(8, 32, 64, 0.96);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition-fast);
  padding: var(--spacing-md) 0;
  backdrop-filter: blur(12px);
  z-index: 1001;
}

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

.navbar-dropdown-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--font-size-sm);
  transition: var(--transition-fast);
  position: relative;
}

.navbar-dropdown-link::before {
  content: '';
  position: absolute;
  inset: 0 0 0 16px;
  border-left: 2px solid transparent;
  transition: border-color 0.3s ease;
}

.navbar-dropdown-link:hover {
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.04);
}

.navbar-dropdown-link:hover::before,
.navbar-dropdown-link.active::before {
  border-color: var(--color-accent);
}

.navbar-dropdown-link.active {
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.04);
}

.navbar-menu .btn {
  margin-left: var(--spacing-md);
}

.navbar-menu .btn:hover {
  transform: translateY(-1px);
}

.navbar-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.78);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.5px;
  padding: var(--spacing-sm) 0;
  transition: var(--transition-base);
}

.navbar-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 153, 0, 0.9), rgba(255, 204, 0, 0.6));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--color-accent);
}

.navbar-link:hover::after,
.navbar-link.active::after {
  transform: scaleX(1);
}

/* 移动菜单按钮 */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  cursor: pointer;
}

/* ========== 5. 页面顶部间距 (固定导航栏) ========== */

/* ========== 6. 通用组件样式 ========== */

/* 按钮 */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  text-align: center;
  cursor: pointer;
  transition: var(--transition-base);
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background-color: #002244;
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

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

.btn-accent:hover {
  background-color: #FF8800;
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-xxl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* 卡片 */
.card {
  background-color: var(--color-text-light);
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-base);
  overflow: hidden;
  transition: var(--transition-base);
}

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

.card-header {
  padding: var(--spacing-lg);
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
}

/* 标题 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

h1 {
  font-size: var(--font-size-xxl);
}

h2 {
  font-size: var(--font-size-xl);
}

h3 {
  font-size: var(--font-size-lg);
}

/* 段落 */
p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

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

/* 分隔线 */
.divider {
  height: 2px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  margin: var(--spacing-lg) 0;
}

/* ========== 7. 英雄区 (Hero Section) ========== */

.hero {
  position: relative;
  height: 600px;
  background: radial-gradient(circle at top left, rgba(255, 153, 0, 0.3) 0%, rgba(0, 51, 102, 0.95) 45%, rgba(0, 24, 60, 1) 100%);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="1200" height="600" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

.hero-visual {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(46%, 560px);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.45;
  mix-blend-mode: screen;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-xl);
}

.hero-title {
  font-size: 48px;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

.hero-stats {
  position: absolute;
  inset: auto 5% 5% auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  backdrop-filter: blur(8px);
}

.hero-stats-item {
  text-align: left;
}

.hero-stats-value {
  font-size: 28px;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  display: block;
}

.hero-stats-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.hero-badge strong {
  font-size: var(--font-size-lg);
  color: var(--color-accent);
}
.section {
  padding: var(--spacing-xxl) 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.section-title {
  font-size: var(--font-size-xxl);
  color: var(--color-primary);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 72px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 2px;
}

.section-subtitle {
  max-width: 540px;
  color: #54657a;
  line-height: 1.8;
}

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

.section-dark {
  background: radial-gradient(circle at center, rgba(0, 51, 102, 0.92) 0%, rgba(4, 24, 56, 1) 60%, rgba(2, 16, 38, 1) 100%);
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}

.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="280" height="280" viewBox="0 0 200 200"><defs><linearGradient id="g" x1="0" y1="0" x2="1" y2="1"><stop offset="0" stop-color="rgba(255,153,0,0.08)"/><stop offset="1" stop-color="rgba(0,153,255,0.05)"/></linearGradient></defs><path d="M 0 100 Q 50 50 100 100 T 200 100" fill="none" stroke="url(%23g)" stroke-width="1" stroke-dasharray="4 6"/></svg>');
  opacity: 0.35;
  pointer-events: none;
}

.section-dark .section-title {
  color: var(--color-text-light);
}

.section-dark .section-title::after {
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

.section-dark .section-subtitle {
  color: rgba(255, 255, 255, 0.75);
}

.data-dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.data-card {
  position: relative;
  background: linear-gradient(160deg, var(--color-gradient-start), var(--color-gradient-end));
  color: var(--color-text-light);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 35, 90, 0.25);
}

.data-card::after {
  content: '';
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: calc(var(--border-radius-lg) - 6px);
  pointer-events: none;
}

.data-card-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: var(--spacing-lg);
}

.data-card-metric {
  font-size: 36px;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.data-card-label {
  font-size: var(--font-size-sm);
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.8;
}

.data-card-trend {
  margin-top: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.trend-up {
  color: #4cd964;
}

.trend-down {
  color: #ff5a5f;
}

.mini-bar-chart {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
  align-items: end;
  height: 40px;
  margin-top: var(--spacing-md);
}

.mini-bar {
  width: 100%;
  border-radius: 4px 4px 0 0;
  background: rgba(255, 255, 255, 0.4);
}

.mini-bar.positive {
  background: rgba(76, 217, 100, 0.8);
}

.mini-bar.warning {
  background: rgba(255, 204, 0, 0.8);
}

.mini-bar.negative {
  background: rgba(255, 90, 95, 0.8);
}

.data-progress {
  margin-top: var(--spacing-md);
}

.data-progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  overflow: hidden;
}

.data-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), #ffba4c);
  width: 0;
  transition: width 1.2s ease;
}

.data-progress-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-sm);
  opacity: 0.75;
  font-size: var(--font-size-sm);
}

.map-wrapper {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
  background: rgba(0, 0, 0, 0.35);
}

.map-image {
  width: 100%;
  height: 480px;
  object-fit: cover;
  opacity: 0.85;
}

.map-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, 0.75) 100%);
  padding: var(--spacing-xl);
  gap: var(--spacing-md);
}

.map-overlay h3 {
  color: var(--color-text-light);
  margin-bottom: 0;
}

.map-industries {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.map-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  font-size: var(--font-size-sm);
}

.map-chip span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.legend-energy { background: #4cd964; }
.legend-agri { background: #ffcc00; }
.legend-finance { background: #5ac8fa; }
.legend-hotel { background: #ff5a5f; }
.legend-trade { background: #8e8eff; }

.map-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-lg);
}

.map-stat-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  backdrop-filter: blur(6px);
}

.map-stat-value {
  font-size: 28px;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.map-stat-label {
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--font-size-sm);
}

.timeline {
  position: relative;
  margin-top: var(--spacing-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 18px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: var(--spacing-xl);
}

.timeline-dot {
  position: absolute;
  top: 4px;
  left: 12px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 6px rgba(255, 153, 0, 0.15);
}

.timeline-year {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.timeline-content {
  background: rgba(255, 255, 255, 0.85);
  border-left: 3px solid var(--color-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-base);
}

.timeline-content p {
  color: #444;
  margin-bottom: 0;
}

.glass-card {
  background: rgba(255, 255, 255, 0.65);
  box-shadow: 0 18px 35px rgba(0, 48, 96, 0.15);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(12px);
  padding: var(--spacing-xl);
}

.glass-card.dark {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--color-text-light);
}

.glass-card h3 {
  margin-bottom: var(--spacing-sm);
}

.glass-card p {
  margin-bottom: var(--spacing-md);
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 999px;
  font-size: var(--font-size-sm);
}

.glass-card.dark .stat-chip {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-text-light);
}

.tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.tab-nav a,
.tab-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  background: rgba(255, 255, 255, 0.9);
  transition: var(--transition-base);
}

.tab-nav a.active,
.tab-btn.active {
  background: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

.tab-panel {
  display: none;
  animation: fadeIn 0.4s ease-in-out;
}

.tab-panel.active {
  display: block;
}

.content-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.content-grid.reverse {
  grid-template-columns: 1fr 320px;
}

.content-grid .card,
.content-grid .glass-card {
  height: 100%;
}

.key-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-md);
}

.key-metric {
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  background: var(--color-bg-light);
  box-shadow: var(--box-shadow-base);
}

.key-metric strong {
  font-size: 28px;
  display: block;
  color: var(--color-primary);
}

.key-metric span {
  color: #5b6b7b;
  font-size: var(--font-size-sm);
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.highlight-card {
  background: var(--color-text-light);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-base);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.highlight-card img {
  height: 180px;
  object-fit: cover;
}

.highlight-card-body {
  padding: var(--spacing-lg);
}

.highlight-card h4 {
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

.highlight-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: #6a7a8d;
  margin-top: var(--spacing-md);
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.industry-card {
  background: var(--color-text-light);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-base);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-base);
}

.industry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--box-shadow-lg);
}

.industry-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.industry-card-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  flex: 1;
}

.industry-card-title {
  font-size: var(--font-size-lg);
  margin-bottom: 0;
}

.industry-card-desc {
  color: #5b6b7b;
  flex: 1;
}

.industry-card a {
  align-self: flex-start;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.timeline-legend {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.timeline-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
}

.timeline-legend span::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}

.cta-panel {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xxl);
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, rgba(255, 153, 0, 0.15), rgba(0, 51, 102, 0.9));
  color: var(--color-text-light);
  text-align: center;
  box-shadow: var(--box-shadow-lg);
}

.cta-panel h2 {
  color: var(--color-text-light);
}

.cta-panel .btn {
  margin-top: var(--spacing-md);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 51, 102, 0.08);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.news-item {
  background: var(--color-text-light);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-base);
  transition: var(--transition-base);
}

.news-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--box-shadow-lg);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: #7a8799;
  margin-bottom: var(--spacing-sm);
}

.news-tags {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}


.link-arrow,
.business-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  transition: var(--transition-fast);
}

.link-arrow::after,
.business-card-link::after {
  content: '→';
  transition: transform 0.3s ease;
}

.link-arrow:hover,
.business-card-link:hover {
  gap: var(--spacing-md);
}

.link-arrow:hover::after,
.business-card-link:hover::after {
  transform: translateX(2px);
}

.news-tag {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 51, 102, 0.08);
  color: var(--color-primary);
}

.page-hero {
  position: relative;
  padding: var(--spacing-xxl) 0;
  background: radial-gradient(circle at 15% 20%, rgba(255, 153, 0, 0.25) 0%, rgba(0, 35, 82, 0.95) 50%, rgba(0, 18, 46, 1) 100%);
  color: var(--color-text-light);
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="300" height="300" viewBox="0 0 100 100"><circle cx="20" cy="20" r="6" fill="rgba(255,255,255,0.08)"/><circle cx="70" cy="40" r="4" fill="rgba(255,153,0,0.2)"/><path d="M0,100 Q25,75 50,90 T100,70" fill="none" stroke="rgba(255,255,255,0.04)" stroke-width="2"/></svg>');
  opacity: 0.6;
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.page-hero h1 {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.85);
}

.breadcrumb {
  margin-top: var(--spacing-md);
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.breadcrumb a {
  color: var(--color-text-light);
  opacity: 0.8;
}

.breadcrumb span {
  opacity: 0.6;
}

.table-wrapper {
  overflow: auto;
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-base);
}

.table-note {
  font-size: var(--font-size-sm);
  color: #718096;
  margin-top: var(--spacing-sm);
}

/* ========== 8. 页脚 ========== */

.footer {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: var(--spacing-xxl) var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto var(--spacing-lg);
}

.footer-section h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
}

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

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--color-text-light);
  opacity: 0.8;
  transition: var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-accent);
  opacity: 1;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

/* ========== 9. 响应式设计 ========== */

/* 平板设备 (768px 及以上) */
@media (max-width: 768px) {
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .navbar-toggle {
    display: block;
  }

  .navbar-menu {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(5, 24, 50, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--spacing-md) 0;
  }

  .navbar-menu.is-open {
    display: flex;
  }

  .navbar-link,
  .navbar-dropdown-toggle {
    padding: var(--spacing-sm) var(--spacing-xl);
    width: 100%;
  }

  .navbar-dropdown {
    width: 100%;
  }

  .navbar-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: rgba(2, 16, 38, 0.85);
    border: none;
    box-shadow: none;
    padding: 0;
    display: none;
  }

  .navbar-dropdown.open .navbar-dropdown-menu {
    display: block;
  }

  .navbar-dropdown-link {
    padding: var(--spacing-sm) var(--spacing-xxl);
  }

  .hero {
    height: 400px;
    padding: var(--spacing-xl) 0;
  }

  .hero-visual {
    display: none;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-stats {
    position: static;
    grid-template-columns: repeat(2, 1fr);
    margin-top: var(--spacing-xl);
  }

  .content-grid,
  .content-grid.reverse {
    grid-template-columns: 1fr;
  }

  .data-dashboard {
    grid-template-columns: 1fr;
  }

  .map-wrapper {
    margin-bottom: var(--spacing-xl);
  }

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

  h1 {
    font-size: var(--font-size-xl);
  }

  h2 {
    font-size: var(--font-size-lg);
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}

/* 手机设备 (480px 及以下) */
@media (max-width: 480px) {
  :root {
    --font-size-base: 14px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
  }

  .navbar {
    height: 60px;
  }

  .navbar-content {
    padding: 0 var(--spacing-md);
  }

  .navbar-logo {
    font-size: var(--font-size-lg);
  }

  .navbar-logo img {
    height: 40px;
  }

  body {
    padding-top: 70px;
  }

  .hero {
    height: 300px;
  }

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

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .map-stats {
    grid-template-columns: 1fr;
  }

  .map-image {
    height: 320px;
  }

  .section-title {
    font-size: 26px;
  }

  .btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
  }

  .container {
    padding: 0 var(--spacing-sm);
  }
}

/* ========== 10. 工具类 ========== */

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.text-uppercase {
  text-transform: uppercase;
}

.text-lowercase {
  text-transform: lowercase;
}

.text-capitalize {
  text-transform: capitalize;
}

.text-muted {
  color: #999999;
}

.text-primary {
  color: var(--color-primary);
}

.text-accent {
  color: var(--color-accent);
}

.bg-primary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.bg-accent {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

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

.bg-dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
}

.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-sm); }
.m-2 { margin: var(--spacing-md); }
.m-3 { margin: var(--spacing-lg); }
.m-4 { margin: var(--spacing-xl); }
.m-5 { margin: var(--spacing-xxl); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mt-5 { margin-top: var(--spacing-xxl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-xxl); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }
.p-5 { padding: var(--spacing-xxl); }

.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }
.pt-4 { padding-top: var(--spacing-xl); }
.pt-5 { padding-top: var(--spacing-xxl); }

.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-xl); }
.pb-5 { padding-bottom: var(--spacing-xxl); }

.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-75 {
  opacity: 0.75;
}

.rounded {
  border-radius: var(--border-radius-md);
}

.shadow {
  box-shadow: var(--box-shadow-base);
}

.shadow-lg {
  box-shadow: var(--box-shadow-lg);
}

/* ========== 11. 动画 ========== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.animate-fadeIn {
  animation: fadeIn 0.5s ease-in;
}

.animate-slideInUp {
  animation: slideInUp 0.5s ease-out;
}

.animate-slideInDown {
  animation: slideInDown 0.5s ease-out;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* ========== 12. 表单样式 ========== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
}

.form-control {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-base);
  font-size: var(--font-size-base);
  transition: var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 51, 102, 0.1);
}

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

/* ========== 13. 表格样式 ========== */

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
}

th, td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  font-weight: var(--font-weight-bold);
}

tr:hover {
  background-color: var(--color-bg-light);
}

/* ========== 14. 特殊效果 ========== */

.parallax {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ========== 15. 滚动条样式 ========== */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--border-radius-base);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* ========== 结束 ========== */