/* 中国联通网上营业厅 - 全局公共样式 */

/* CSS变量 */
:root {
  --primary-red: #D50036;
  --primary-red-dark: #B8002E;
  --primary-red-light: #FFEBEE;
  --primary-blue: #0066CC;
  --gray-dark: #333333;
  --gray-medium: #666666;
  --gray-light: #999999;
  --gray-lighter: #F5F5F5;
  --bg-color: #F5F5F5;
  --white: #FFFFFF;
  --border-color: #E5E5E5;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray-dark);
  background-color: var(--bg-color);
  margin: 0;
  padding: 0;
}

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: inherit;
}

input, select, textarea {
  font-family: inherit;
  outline: none;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* 按钮样式 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--primary-red) 0%, #FF1744 100%);
  color: var(--white);
  border-radius: 25px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(213, 0, 54, 0.3);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(213, 0, 54, 0.4);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background-color: transparent;
  color: var(--primary-red);
  border: 2px solid var(--primary-red);
  border-radius: 25px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline:hover {
  background: linear-gradient(135deg, var(--primary-red) 0%, #FF1744 100%);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(213, 0, 54, 0.3);
}

.btn-block {
  display: block;
  width: 100%;
}

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-red { color: var(--primary-red); }
.text-gray { color: var(--gray-medium); }
.text-sm { font-size: 12px; }
.text-lg { font-size: 18px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.font-bold { font-weight: bold; }
.font-medium { font-weight: 500; }

.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }

.p-4 { padding: 16px; }
.p-6 { padding: 24px; }
.py-4 { padding-top: 16px; padding-bottom: 16px; }
.py-6 { padding-top: 24px; padding-bottom: 24px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.px-6 { padding-left: 24px; padding-right: 24px; }

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

.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }

.rounded { border-radius: 8px; }
.rounded-lg { border-radius: 12px; }

.shadow { box-shadow: var(--shadow-card); }
.overflow-hidden { overflow: hidden; }
.hidden { display: none; }
.block { display: block; }

/* 响应式设计 */
@media (max-width: 768px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}