/* ============================================
   CSS 变量系统 - 颜色、字体、间距、圆角、阴影
   ============================================ */

:root {
  /* 主色调 - 现代物流科技风📦 */
  --primary-color: #003D7A;
  --primary-light: #0052A3;
  --primary-dark: #002952;
  
  /* 辅色 - 物流绿 */
  --secondary-color: #00A859;
  --secondary-dark: #008547;
  
  /* 强调色 - 货运橙（活力、速度） */
  --accent-color: #FFA500;
  --accent-light: #FFB733;
  
  /* 警告/错误色 */
  --warning-color: #ff6b35;
  --danger-color: #e74c3c;
  
  /* 文字颜色 */
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-light: #999999;
  --text-white: #ffffff;
  
  /* 背景颜色 */
  --bg-white: #ffffff;
  --bg-light: #f9f9f9;
  --bg-gray: #f0f0f0;
  --bg-dark: #1a1a1a;
  
  /* 边框颜色 */
  --border-color: #ddd;
  --border-light: #efefef;
  
  /* 字体 */
  --font-family-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --font-family-heading: 'Microsoft YaHei', 'PingFang SC', sans-serif;
  
  /* 字体大小 */
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 28px;
  --font-size-4xl: 32px;
  --font-size-5xl: 40px;
  
  /* 字体粗细 */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;
  --spacing-2xl: 24px;
  --spacing-3xl: 32px;
  --spacing-4xl: 40px;
  --spacing-5xl: 48px;
  --spacing-6xl: 64px;
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.2);
  
  /* 过渡 */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* ============================================
   全局样式
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-main);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-white);
}

/* ============================================
   排版
   ============================================ */

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-lg);
  color: var(--text-primary);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}

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

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

/* ============================================
   导航栏
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--bg-white);
  box-shadow: var(--shadow-md);
  z-index: 1000;
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl) 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  gap: var(--spacing-4xl);
}

.navbar-logo {
  display: flex;
  align-items: center;
}

.navbar-logo a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-xs);
  color: var(--primary-color);
}

.navbar-logo a:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

.navbar-logo__name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.02em;
}

.navbar-logo__tagline {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-3xl);
  align-items: center;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-md) 0;
  display: block;
  transition: color var(--transition-fast);
}

.navbar-link:hover {
  color: var(--primary-color);
  text-decoration: none;
}

/* 下拉菜单 */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--spacing-md));
  left: 0;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.98) 45%, rgba(240, 247, 255, 0.98) 100%);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 40px rgba(0, 34, 68, 0.15);
  min-width: 240px;
  list-style: none;
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  overflow: hidden;
  backdrop-filter: blur(6px);
}

.dropdown-menu::before {
  content: "";
  position: absolute;
  top: -16px;
  left: var(--spacing-xl);
  width: 20px;
  height: 20px;
  transform: rotate(45deg);
  background: inherit;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  border-left: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 4px 0 0 0;
  box-shadow: -12px -12px 20px rgba(0, 34, 68, 0.08);
}

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

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

.dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  position: relative;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.dropdown-item::after {
  content: "→";
  font-size: var(--font-size-sm);
  color: var(--primary-light);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover {
  background: rgba(0, 102, 204, 0.12);
  color: var(--primary-dark);
  text-decoration: none;
  transform: translateX(4px);
}

.dropdown-item:hover::after {
  transform: translateX(4px);
  color: var(--primary-dark);
}

/* 移动菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: var(--spacing-xs);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-md);
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

/* ============================================
   主要内容区域
   ============================================ */

main {
  margin-top: 70px;
  min-height: calc(100vh - 70px);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ============================================
   英雄区域
   ============================================ */

.hero {
  position: relative;
  color: var(--text-white);
  padding: 140px 0 110px;
  overflow: hidden;
  --hero-background-image: none;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 68, 153, 0.9) 0%, rgba(0, 102, 204, 0.82) 100%), var(--hero-background-image, none);
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.18) 0%, transparent 55%),
              radial-gradient(circle at 80% 10%, rgba(255, 255, 255, 0.12) 0%, transparent 45%);
  opacity: 0.6;
  z-index: 0;
}

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

.hero-content {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.hero h1 {
  color: var(--text-white);
  margin-bottom: 0;
  font-size: var(--font-size-5xl);
}

.hero p {
  color: rgba(255, 255, 255, 0.92);
  font-size: var(--font-size-lg);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--spacing-5xl);
  align-items: center;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.14);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.hero-stat {
  padding: var(--spacing-2xl);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.hero-stat__value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-white);
}

.hero-stat__label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

.hero-image {
  display: grid;
  gap: var(--spacing-xl);
}

.hero-image__media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  min-height: 320px;
}

.hero-image__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 30%, rgba(0, 0, 0, 0.45) 100%);
}

.hero-image__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-image__caption {
  position: absolute;
  bottom: var(--spacing-xl);
  left: var(--spacing-xl);
  right: var(--spacing-xl);
  color: var(--text-white);
  z-index: 1;
}

.hero-image__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.12);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  letter-spacing: 0.04em;
}

.hero-insight {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-2xl);
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px);
}

.hero-insight__title {
  font-weight: var(--font-weight-semibold);
  color: var(--text-white);
}

.hero-insight__list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--font-size-sm);
}

.hero-home {
  --hero-background-image: url('../images/QuKV9Ji4KJDp.jpg');
}

/* ============================================
   按钮
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-2xl);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-medium);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-size: var(--font-size-base);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  text-decoration: none;
}

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

.btn-outline:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
  text-decoration: none;
}

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

.btn-white:hover {
  background-color: var(--secondary-color);
  text-decoration: none;
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-3xl);
  font-size: var(--font-size-lg);
}

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

/* ============================================
   卡片布局
   ============================================ */

.card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

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

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.card-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

/* ============================================
   Grid 布局
   ============================================ */

.grid {
  display: grid;
  gap: var(--spacing-2xl);
}

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

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

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

/* ============================================
   分区
   ============================================ */

.section {
  padding: var(--spacing-6xl) var(--spacing-lg);
  scroll-margin-top: 140px;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

.section-title h2 {
  margin-bottom: var(--spacing-lg);
}

.section-title p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

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

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

.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
  color: var(--text-white);
}

.section-dark p {
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   企业站点组件
   ============================================ */

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  background-color: rgba(0, 102, 204, 0.12);
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.section-header p {
  max-width: 600px;
  margin-bottom: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.feature-card {
  background-color: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: rgba(0, 102, 204, 0.12);
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
}

.feature-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
}

.feature-card__list li {
  position: relative;
  padding-left: 20px;
}

.feature-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
}

.feature-card__link {
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: auto;
}

.feature-card__link::after {
  content: "→";
  font-size: var(--font-size-base);
  transition: transform var(--transition-fast);
}

.feature-card__link:hover::after {
  transform: translateX(4px);
}

.split-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-5xl);
  align-items: center;
}

.split-section__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.split-section__media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  min-height: 360px;
}

.split-section__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.split-section__badge {
  position: absolute;
  top: var(--spacing-xl);
  left: var(--spacing-xl);
  background-color: rgba(255, 255, 255, 0.14);
  color: var(--text-white);
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.split-section__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3xl);
}

.metric {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.metric__value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
}

.metric__label {
  color: var(--text-secondary);
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--spacing-sm);
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text-secondary);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  border: 2px solid var(--primary-color);
}

.check-list--primary li::before {
  background-color: var(--primary-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.stat-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
}

.stat-card__value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
}

.stat-card__title {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.stat-card__desc {
  color: var(--text-secondary);
}

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

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  background-color: var(--secondary-color);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.tag--accent {
  background-color: rgba(0, 168, 107, 0.18);
  color: var(--accent-color);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.case-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.case-card__image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}

.case-card:hover .case-card__image img {
  transform: scale(1.05);
}

.case-card__content {
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.case-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  color: var(--text-secondary);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.process-step {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.process-step__index {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 102, 204, 0.12);
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--primary-color);
  font-weight: var(--font-weight-semibold);
}

.link-arrow::after {
  content: "→";
  transition: transform var(--transition-fast);
}

.link-arrow:hover::after {
  transform: translateX(4px);
}

.news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--spacing-4xl);
}

.news-feature {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.news-feature__image {
  height: 240px;
  overflow: hidden;
}

.news-feature__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.news-feature__content {
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.news-feature__meta {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

.news-list {
  display: grid;
  gap: var(--spacing-xl);
}

.news-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.news-card__meta {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

.callout-section {
  position: relative;
  background: linear-gradient(135deg, rgba(0, 68, 153, 0.92) 0%, rgba(0, 168, 107, 0.85) 100%);
  color: var(--text-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-5xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.callout-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 90% 10%, rgba(255, 255, 255, 0.2) 0%, transparent 55%);
  opacity: 0.6;
}

.callout-section > * {
  position: relative;
  z-index: 1;
}

.callout-section h2 {
  color: var(--text-white);
}

.callout-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.breadcrumb {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.breadcrumb li::after {
  content: "/";
  color: var(--border-color);
}

.breadcrumb li:last-child::after {
  content: "";
}

.breadcrumb a {
  color: inherit;
  font-weight: var(--font-weight-medium);
}

.breadcrumb a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.breadcrumb-on-dark {
  color: rgba(255, 255, 255, 0.78);
}

.breadcrumb-on-dark li::after {
  color: rgba(255, 255, 255, 0.4);
}

.breadcrumb-on-dark a:hover {
  color: var(--text-white);
}

.page-hero {
  position: relative;
  color: var(--text-white);
  padding: 150px 0 90px;
  overflow: hidden;
  --page-hero-image: none;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 68, 153, 0.9) 0%, rgba(0, 102, 204, 0.8) 100%), var(--page-hero-image, none);
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.16) 0%, transparent 45%),
              radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.12) 0%, transparent 40%);
  z-index: 0;
  opacity: 0.6;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

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

.page-hero p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 720px;
}

.page-hero__wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3xl);
}

.page-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.page-hero__number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
}

.page-hero--about {
  --page-hero-image: url('../images/0MtoTbPhc0dH.jpg');
}

.page-hero--business {
  --page-hero-image: url('../images/6XV6KvqAvnjg.jpg');
}

.page-hero--products {
  --page-hero-image: url('../images/Wmif2YdrQFNI.webp');
}

.page-hero--news {
  --page-hero-image: url('../images/jrjMKCwUBdlw.jpg');
}

.page-hero--careers {
  --page-hero-image: url('../images/LC5l9WXv53us.jpg');
}

.page-hero--contact {
  --page-hero-image: url('../images/uNtZKHcO97zk.jpg');
}

.content-grid {
  display: grid;
  gap: var(--spacing-4xl);
}

.content-grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.content-grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.content-card--highlight {
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.08) 0%, rgba(0, 168, 107, 0.1) 100%);
}

.data-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--spacing-md);
}

.data-list__item {
  display: flex;
  gap: var(--spacing-lg);
  color: var(--text-secondary);
}

.data-list__label {
  min-width: 120px;
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

.timeline {
  position: relative;
  padding-left: var(--spacing-4xl);
  display: grid;
  gap: var(--spacing-3xl);
}

.timeline::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 12px;
  width: 2px;
  background: var(--border-light);
}

.timeline-item {
  position: relative;
  padding: var(--spacing-3xl);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -var(--spacing-xl);
  top: var(--spacing-2xl);
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
  border: 3px solid var(--bg-white);
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.12);
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.certificate-card {
  background: var(--bg-white);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  justify-content: center;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--spacing-3xl);
  align-items: stretch;
}

.partner-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}

.news-listing {
  display: grid;
  gap: var(--spacing-3xl);
}

.news-item {
  padding: var(--spacing-3xl);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.news-item__meta {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

.news-item__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--primary-color);
  font-weight: var(--font-weight-semibold);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--spacing-4xl);
}

.contact-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.contact-card__item {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 102, 204, 0.12);
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.contact-map {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  min-height: 360px;
  background: url('../images/pKbWiFr1ML4o.png') center/cover no-repeat;
}

.contact-form {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group label {
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.16);
}

.job-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.job-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.job-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.benefit-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
}

.application-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-3xl);
}

.flow-step {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.flow-step__index {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 168, 107, 0.15);
  color: var(--accent-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
}

.control-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--spacing-4xl);
}

.control-card {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.control-card--accent {
  background: linear-gradient(160deg, rgba(0, 102, 204, 0.12) 0%, rgba(0, 168, 107, 0.15) 100%);
  border: 1px solid rgba(0, 102, 204, 0.2);
  box-shadow: var(--shadow-md);
}

.control-card__title {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.control-card__list {
  display: grid;
  gap: var(--spacing-sm);
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--text-secondary);
}

.control-card__list li {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.control-card__list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
  margin-top: var(--spacing-sm);
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-2xl);
}

.matrix-cell {
  position: relative;
  padding: var(--spacing-3xl);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  overflow: hidden;
}

.matrix-cell::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.12) 0%, rgba(0, 168, 107, 0.12) 100%);
  z-index: 0;
}

.matrix-cell > * {
  position: relative;
  z-index: 1;
}

.matrix-cell__title {
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.matrix-cell__meta {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

.matrix-cell__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
}

.partner-ribbon {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--spacing-2xl);
  align-items: center;
}

.partner-ribbon__item {
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--bg-white);
  text-align: center;
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.partner-ribbon__item span {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-light);
  margin-top: var(--spacing-xs);
}

.horizontal-timeline {
  position: relative;
  padding: var(--spacing-3xl) 0 0;
}

.horizontal-timeline__track {
  position: relative;
  height: 4px;
  background: linear-gradient(90deg, rgba(0, 102, 204, 0.15) 0%, rgba(0, 168, 107, 0.2) 100%);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-3xl);
}

.horizontal-timeline__items {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-4xl);
}

.horizontal-timeline__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-left: var(--spacing-xl);
}

.horizontal-timeline__item::before {
  content: "";
  position: absolute;
  top: -48px;
  left: var(--spacing-sm);
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.15);
}

.horizontal-timeline__year {
  font-weight: var(--font-weight-semibold);
  color: var(--primary-color);
}

.horizontal-timeline__content {
  background: var(--bg-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-sm);
}

.floating-contact {
  position: fixed;
  bottom: 32px;
  right: 32px;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  color: var(--text-white);
  padding: var(--spacing-sm) var(--spacing-2xl);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  z-index: 900;
}

.floating-contact:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
  text-decoration: none;
}
/* ============================================
   页脚
   ============================================ */

footer {
  background-color: var(--bg-dark);
  color: var(--text-white);
  padding: var(--spacing-5xl) var(--spacing-lg) var(--spacing-2xl);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-section h4 {
  color: var(--text-white);
  margin-bottom: var(--spacing-lg);
}

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

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

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--primary-light);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-2xl);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   响应式设计
   ============================================ */

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-layout {
    grid-template-columns: 1fr;
  }
  
  .feature-grid,
  .case-grid,
  .benefit-grid,
  .application-flow,
  .process-steps,
  .stats-grid,
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .split-section,
  .news-layout,
  .contact-grid,
  .content-grid--2,
  .certificate-grid,
  .partner-grid,
  .job-grid {
    grid-template-columns: 1fr;
  }
  
  .partner-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .control-grid {
    grid-template-columns: 1fr;
  }
  
  .horizontal-timeline__items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .partner-ribbon {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

}

@media (max-width: 768px) {
  .navbar-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--bg-white);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .navbar-menu.active {
    display: flex;
  }
  
  .menu-toggle {
    display: flex;
  }

  .navbar-item {
    width: 100%;
  }
  
  .navbar-link {
    padding: var(--spacing-sm) 0;
  }
  
  .dropdown-menu {
    position: static;
    margin-top: 0;
    border: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0 0 0 var(--spacing-md);
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: none;
    gap: 0;
  }
  
  .dropdown-menu::before {
    display: none;
  }
  
  .dropdown.open > .dropdown-menu {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .dropdown-item {
    border-radius: 0;
    padding: var(--spacing-sm) 0;
    transform: none;
  }
  
  .dropdown-item::after {
    display: none;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: var(--font-size-3xl);
  }
  
  h1 {
    font-size: var(--font-size-3xl);
  }
  
  h2 {
    font-size: var(--font-size-2xl);
  }
  
  .section {
    padding: var(--spacing-4xl) var(--spacing-lg);
  }
  
  .navbar-container {
    height: 60px;
  }
  
  main {
    margin-top: 60px;
    min-height: calc(100vh - 60px);
  }

  .hero {
    padding: 120px 0 80px;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
  }
  
  .feature-grid,
  .case-grid,
  .benefit-grid,
  .application-flow,
  .process-steps,
  .stats-grid,
  .certificate-grid,
  .partner-grid,
  .matrix-grid {
    grid-template-columns: 1fr;
  }
  
  .news-layout {
    grid-template-columns: 1fr;
  }
  
  .news-feature__image {
    height: 200px;
  }
  
  .split-section {
    grid-template-columns: 1fr;
  }
  
  .split-section__media {
    min-height: 280px;
  }
  
  .callout-section {
    padding: var(--spacing-4xl);
  }
  
  .callout-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .contact-grid,
  .content-grid--2,
  .news-layout,
  .job-grid {
    grid-template-columns: 1fr;
  }
  
  .breadcrumb {
    margin-bottom: var(--spacing-lg);
  }
  
  .control-grid,
  .horizontal-timeline__items {
    grid-template-columns: 1fr;
  }
  
  .partner-ribbon {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-xl);
  }
}

@media (max-width: 480px) {
  .navbar-logo__name {
    font-size: var(--font-size-lg);
  }
  
  .navbar-logo__tagline {
    font-size: var(--font-size-xs);
    letter-spacing: 0.04em;
  }
  
  .hero {
    padding: var(--spacing-4xl) var(--spacing-lg);
  }
  
  .hero h1 {
    font-size: var(--font-size-2xl);
  }
  
  .hero p {
    font-size: var(--font-size-base);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .btn {
    width: 100%;
  }
  
  .section-title h2 {
    font-size: var(--font-size-2xl);
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-2xl);
  }
  
  .hero-tagline {
    font-size: var(--font-size-xs);
  }
  
  .hero-image__media {
    min-height: 220px;
  }
  
  .callout-section {
    padding: var(--spacing-3xl);
  }
  
  .callout-actions {
    gap: var(--spacing-md);
  }
  
  .page-hero {
    padding: 120px 0 70px;
  }
  
  .partner-ribbon {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .horizontal-timeline__item::before {
    top: -40px;
  }
  
  .floating-contact {
    right: 16px;
    left: 16px;
    justify-content: center;
  }
}

/* ============================================
   实用类
   ============================================ */

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

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

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

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }
.mt-6 { margin-top: var(--spacing-2xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }
.mb-6 { margin-bottom: var(--spacing-2xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }
.p-6 { padding: var(--spacing-2xl); }

.hidden {
  display: none;
}

.visible {
  display: block;
}

.flex {
  display: flex;
}

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

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

.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

.text-muted {
  color: var(--text-light);
}

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

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

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

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

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

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

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

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


/* ============================================
   悬浮快捷操作
   ============================================ */

.floating-dock {
  position: fixed;
  right: 24px;
  bottom: 140px;
  display: grid;
  gap: var(--spacing-sm);
  z-index: 950;
}

.floating-dock__item {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.94);
  color: var(--primary-color);
  font-weight: var(--font-weight-medium);
  box-shadow: 0 12px 30px rgba(0, 34, 68, 0.16);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  backdrop-filter: blur(8px);
}

.floating-dock__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(0, 34, 68, 0.2);
  text-decoration: none;
}

.floating-dock__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(0, 102, 204, 0.12);
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
}

.floating-dock__label {
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.floating-dock__item--top {
  opacity: 0.2;
  pointer-events: none;
}

.floating-dock__item--top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 1024px) {
  .floating-dock {
    right: 16px;
    bottom: 120px;
  }
}

@media (max-width: 768px) {
  .floating-dock {
    right: 16px;
    bottom: 110px;
    gap: var(--spacing-xs);
  }
  .floating-dock__item {
    padding: var(--spacing-xs) var(--spacing-md);
    box-shadow: var(--shadow-lg);
  }
  .floating-dock__icon {
    width: 32px;
    height: 32px;
  }
}

@media (max-width: 480px) {
  .floating-dock {
    right: 12px;
    bottom: 100px;
  }
  .floating-dock__label {
    font-size: var(--font-size-xs);
  }
  .floating-dock__item {
    gap: var(--spacing-xs);
  }
}