@charset "UTF-8";

/* === base.css - 重置+变量+工具类（全局加载） === */

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #F0F4F8;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
}

a {
  text-decoration: none;
  color: inherit;
}

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

ul, ol {
  list-style: none;
}

/* CSS Variables */
:root {
  --primary: #0D1B2A;
  --secondary: #F77F00;
  --dark-bg: #08121C;
  --page-bg: #F0F4F8;
  --white: #FFFFFF;
  --text-dark: #333333;
  --text-muted: #666666;
  --border-color: #C8D5E0;
  --transition: all 0.3s ease;
}

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

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

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

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

.d-flex {
  display: flex;
}

.d-block {
  display: block;
}

.d-none {
  display: none;
}

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

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

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

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

.gap-10 {
  gap: 10px;
}

.gap-20 {
  gap: 20px;
}

.gap-30 {
  gap: 30px;
}

.mt-10 {
  margin-top: 10px;
}

.mt-20 {
  margin-top: 20px;
}

.mt-30 {
  margin-top: 30px;
}

.mb-10 {
  margin-bottom: 10px;
}

.mb-20 {
  margin-bottom: 20px;
}

.mb-30 {
  margin-bottom: 30px;
}

.pt-20 {
  padding-top: 20px;
}

.pt-40 {
  padding-top: 40px;
}

.pt-60 {
  padding-top: 60px;
}

.pb-20 {
  padding-bottom: 20px;
}

.pb-40 {
  padding-bottom: 40px;
}

.pb-60 {
  padding-bottom: 60px;
}

/* Color utilities */
.color-primary {
  color: var(--primary);
}

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

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

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

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

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

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

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

/* Clearfix */
.clearfix::after {
  content: "";
  display: table;
  clear: both;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Print */
@media print {
  .no-print {
    display: none !important;
  }
}