/* ======================================================
   现代化CSS样式 - 基于Tailwind CSS理念
   ====================================================== */

/* 基础重置和变量 */
:root {
  /* 颜色变量 */
  --color-primary: #2563eb;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-secondary: #4b5563;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #3b82f6;
  
  /* 中性色 */
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-black: #000000;
  
  /* 排版 */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  
  /* 间距 */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 5rem;
  
  /* 圆角 */
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* 过渡 */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  line-height: 1.5;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 排版 */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-gray-900);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--color-gray-600);
}

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

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

/* 容器和布局 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* 网格和弹性布局辅助类 */
.flex {
  display: flex;
}

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

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

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

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

.gap-4 {
  gap: 1rem;
}

.gap-6 {
  gap: 1.5rem;
}

.gap-8 {
  gap: 2rem;
}

/* 间距辅助类 */
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.py-21 { padding-top: 7rem; padding-bottom: 5rem; }

.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

/* 颜色辅助类 */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-info { color: var(--color-info); }

.text-white { color: var(--color-white); }
.text-gray-50 { color: var(--color-gray-50); }
.text-gray-100 { color: var(--color-gray-100); }
.text-gray-200 { color: var(--color-gray-200); }
.text-gray-300 { color: var(--color-gray-300); }
.text-gray-400 { color: var(--color-gray-400); }
.text-gray-500 { color: var(--color-gray-500); }
.text-gray-600 { color: var(--color-gray-600); }
.text-gray-700 { color: var(--color-gray-700); }
.text-gray-800 { color: var(--color-gray-800); }
.text-gray-900 { color: var(--color-gray-900); }
.text-black { color: var(--color-black); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-success { background-color: var(--color-success); }
.bg-warning { background-color: var(--color-warning); }
.bg-danger { background-color: var(--color-danger); }
.bg-info { background-color: var(--color-info); }

.bg-white { background-color: var(--color-white); }
.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }
.bg-gray-200 { background-color: var(--color-gray-200); }
.bg-gray-300 { background-color: var(--color-gray-300); }
.bg-gray-400 { background-color: var(--color-gray-400); }
.bg-gray-500 { background-color: var(--color-gray-500); }
.bg-gray-600 { background-color: var(--color-gray-600); }
.bg-gray-700 { background-color: var(--color-gray-700); }
.bg-gray-800 { background-color: var(--color-gray-800); }
.bg-gray-900 { background-color: var(--color-gray-900); }
.bg-black { background-color: var(--color-black); }

/* 圆角辅助类 */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

/* 阴影辅助类 */
.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  user-select: none;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-gray-700);
  border-color: var(--color-gray-700);
  text-decoration: none;
}

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

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

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

/* 卡片样式 */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.card-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-gray-200);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--color-gray-200);
}

/* 表单样式 */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  line-height: 1.5;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  background-clip: padding-box;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-gray-400);
  opacity: 1;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.form-row .form-group {
  flex: 1;
  min-width: 200px;
  margin-bottom: 0;
}

/* 导航栏样式 */
.navbar {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

.navbar-brand {
  display: flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
  text-decoration: none;
}

.navbar-brand img {
  height: 2.5rem;
  margin-right: 0.75rem;
}

.navbar-nav {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1rem;
}

.nav-item .nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-gray-700);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-weight: 500;
  border-radius: var(--radius-md);
}

.nav-item .nav-link:hover,
.nav-item .nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-blue-50);
}

/* 响应式汉堡菜单 */
.navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.navbar-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--color-gray-800);
  border-radius: 3px;
  transition: all var(--transition-fast);
}

/* 英雄区域样式 */
.hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 6rem 0;
  color: var(--color-white);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  color: var(--color-white);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 3xl;
}

/* 部分区域通用样式 */
.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-subtitle {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

/* 特色卡片样式 */
.feature-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

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

.feature-card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
  background-color: var(--color-blue-50);
  color: var(--color-primary);
  font-size: 2rem;
  border-radius: 50%;
}

/* 产品卡片样式 */
.product-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

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

.product-card .product-image {
  position: relative;
  padding-bottom: 75%;
  overflow: hidden;
}

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

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

.product-card .product-content {
  padding: 1.5rem;
}

.product-card .product-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--color-gray-900);
}

.product-card .product-description {
  margin-bottom: 1rem;
  color: var(--color-gray-600);
}

/* 常见问题手风琴样式 */
.faq-item {
  border-bottom: 1px solid var(--color-gray-200);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.5rem 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-900);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-question .icon {
  margin-left: 1rem;
  transition: transform var(--transition-normal);
}

.faq-question.active .icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding-bottom: 0;
}

.faq-answer.active {
  max-height: 500px;
  padding-bottom: 1.5rem;
}

/* 页脚样式 */
.footer {
  background-color: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: 4rem 0 2rem;
}

.footer a {
  color: var(--color-gray-300);
  transition: color var(--transition-fast);
}

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

.footer-title {
  color: var(--color-white);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.footer-logo img {
  height: 2.5rem;
  margin-right: 0.75rem;
}

.footer-logo .brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-gray-800);
  color: var(--color-gray-300);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.social-links a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-gray-800);
  text-align: center;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.75rem;
  }
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }
  
  .navbar-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    background-color: var(--color-white);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-normal);
    z-index: 1000;
  }
  
  .navbar-nav.active {
    right: 0;
  }
  
  .hero {
    padding: 4rem 0;
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .hero p {
    font-size: 1.125rem;
  }
  
  .form-row {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 15px;
  }
  
  .hero h1 {
    font-size: 1.875rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}

/* 动画和过渡 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.fade-in {
  animation: fadeIn 0.8s ease-out;
}

.slide-in-right {
  animation: slideInFromRight 0.8s ease-out;
}

.slide-in-left {
  animation: slideInFromLeft 0.8s ease-out;
}

.pulse {
  animation: pulse 2s infinite;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-400);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-500);
}

/* 辅助类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.font-normal { font-weight: 400; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-none { display: none; }

.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }

.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }

.user-select-none { user-select: none; }

/* 页脚样式 */
.footer {
  background-color: var(--color-gray-900);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0 var(--spacing-2xl);
  margin-top: var(--spacing-4xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  md:grid-template-columns: repeat(2, 1fr);
  lg:grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-6);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-content {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-section {
  margin-bottom: var(--spacing-6);
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.footer-logo .logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  margin-right: var(--spacing-md);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  padding: var(--spacing-xs);
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
}

.footer-description {
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-4);
  line-height: 1.6;
  padding-right: 10%;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-gray-800);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.social-links a:hover {
  background-color: var(--color-primary);
  transform: translateY(-3px);
  text-decoration: none;
}

.footer-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--spacing-4);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 2px;
  background-color: var(--color-primary);
}

.footer-links {
  list-style: none;
  padding-top: 5%;
}
.contact-info{
  padding-top: 5%;
}

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

.footer-links a {
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--color-white);
  transform: translateX(3px);
  text-decoration: none;
}

.contact-info p {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-400);
  line-height: 1.6;
}

.contact-info i {
  margin-right: var(--spacing-md);
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 4px;
}

.footer-bottom {
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--color-gray-800);
  display: flex;
  flex-direction: column;
  md:flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.footer-copyright {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  padding-top: 1%;
}

.footer-legal {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-legal a {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-white);
  text-decoration: none;
}

/* 响应式调整 */
@media (max-width: 640px) {
  .footer {
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
  }
  
  .footer-logo .logo {
    width: 40px;
    height: 40px;
  }
  
  .brand-name {
    font-size: 1.25rem;
  }
  
  .footer-title {
    font-size: 1rem;
  }
  
  .contact-info p {
    font-size: 0.875rem;
  }
}

/* 打印样式 */
@media print {
  * {
    color-adjust: exact;
  }
  
  body {
    background-color: white;
    color: black;
  }
  
  .navbar,
  .btn,
  .footer {
    display: none;
  }
  
 .tab-active h2{
    font-size: 1.5rem;
    padding-bottom: 20px;
    color: #131b48;
    
  }
 .tab-active p{
    color: #000;
  }
 
 
}