/* base.css - 重置+工具类 */
/* 太原市斯航网络科技有限公司 - 全局基础样式 */

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

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

body {
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #333333;
  background-color: #F5F2F0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: #3E2723;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  word-wrap: break-word;
}

a {
  color: #4DB6AC;
  text-decoration: none;
  -webkit-transition: color 0.3s ease;
  -moz-transition: color 0.3s ease;
  -ms-transition: color 0.3s ease;
  transition: color 0.3s ease;
}

a:hover {
  color: #3E2723;
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  border: 0;
  -ms-interpolation-mode: bicubic;
  display: block;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 2rem;
}

li {
  margin-bottom: 0.5rem;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
  margin-bottom: 1rem;
}

th, td {
  padding: 0.75rem;
  border: 1px solid #D5CFCB;
  text-align: left;
}

th {
  background-color: #3E2723;
  color: #FFFFFF;
  font-weight: 600;
}

tr:nth-child(even) {
  background-color: #F5F2F0;
}

input, textarea, select, button {
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

button {
  cursor: pointer;
  border: none;
  outline: none;
}

/* ===== 清除浮动 ===== */
.clearfix:before,
.clearfix:after {
  content: "";
  display: table;
}
.clearfix:after {
  clear: both;
}
.clearfix {
  zoom: 1;
}

/* ===== 工具类 ===== */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.float-left { float: left; }
.float-right { float: right; }

.hidden { display: none; }
.visible { display: block; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

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

.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }

.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }

/* 文字颜色工具类 */
.color-primary { color: #3E2723; }
.color-accent { color: #4DB6AC; }
.color-white { color: #FFFFFF; }
.color-gray { color: #666666; }

/* 背景色工具类 */
.bg-primary { background-color: #3E2723; }
.bg-accent { background-color: #4DB6AC; }
.bg-dark { background-color: #261A17; }
.bg-light { background-color: #F5F2F0; }

/* 圆角 */
.rounded {
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  border-radius: 4px;
}

/* 阴影 */
.shadow {
  -webkit-box-shadow: 0 2px 8px rgba(38, 26, 23, 0.1);
  -moz-box-shadow: 0 2px 8px rgba(38, 26, 23, 0.1);
  box-shadow: 0 2px 8px rgba(38, 26, 23, 0.1);
}

/* 省略号 */
.ellipsis {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 多行省略 */
.ellipsis-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ellipsis-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}