@font-face {
  font-family: 'Source Han Sans CN';
  src: url('/fonts/SourceHanSansCN-ExtraLight.otf') format('opentype');
  font-weight: 200;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Source Han Sans CN';
  src: url('/fonts/SourceHanSansCN-Light.otf') format('opentype');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Source Han Sans CN';
  src: url('/fonts/SourceHanSansCN-Normal.otf') format('opentype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Source Han Sans CN';
  src: url('/fonts/SourceHanSansCN-Medium.otf') format('opentype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Source Han Sans CN';
  src: url('/fonts/SourceHanSansCN-Bold.otf') format('opentype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Source Han Sans CN';
  src: url('/fonts/SourceHanSansCN-Heavy.otf') format('opentype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

/* 全局字体样式 */
html, body {
  font-family: 'Source Han Sans CN', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  color:#001320;
}
.header-border {
  height: 74px;
}

.centered-container {
  display: flex;           /* 因为 items-center 需要 flex 容器 */
  align-items: center;     /* items-center：垂直居中对齐 */
  height: 74px;            /* h-[74px] */
  justify-content: space-between; /* justify-between */
}

/* logo */
.site-logo {
  width: 56px;          /* w-[56px] */
  height: 56px;         /* h-[56px] */
  object-fit: contain;  /* object-contain */
  transition-colors
}

/* nav */
.nav{
  display: flex;           /* 因为 items-center 需要 flex 容器 */
  align-items: center;     /* items-center：垂直居中对齐 */
  gap: 40px;              /* space-x-[60px] */
}


/* 通用导航栏字体样式 */
.nav-link {
  font-size: 18px;       /* 手机端默认字号 */
  line-height: 100%;     /* 手机端行高 */
  font-weight: 500;            /* font-medium */
  color:#001320;
  text-align: center;
  item-align: center;
  height: 100%;
}

.title-box {                /* 占父容器50% */
  font-weight: 400;           /* Regular */
  font-size: 16px;            /* 字号16px */
  line-height: 21px;          /* 行高21px */
}

/* 首页轮播图标题字体样式 */
.title-medium-title-left {
  font-weight: 500;       /* Medium */
  font-size: 30px;        /* 字号30px */
  text-align: left;
}

/* 首页轮播图描述字体样式 */
.title-medium-left-18 {
  font-weight: 500;       /* Medium */
  font-size: 18px;        /* 字号18px */
  text-align: left;
}
.title-medium-left-16 {
  font-weight: 500;       /* Medium */
  font-size: 16px;        /* 字号16px */
  text-align: left;

}

.title-medium-left-24 {
  font-weight: 500;       /* Medium */
  font-size: 24px;        /* 字号24px */
  text-align: left;
}

.description-medium-left-12 {
  font-weight: 500;       /* Medium */
  font-size: 12px;        /* 字号12px */
  text-align: left;
}

.description-medium-left-14 {
  font-weight: 500;       /* Medium */
  font-size: 14px;        /* 字号14px */
  text-align: left;
}
.description-medium-left-16 {
  font-weight: 500;       /* Medium */
  font-size: 16px;        /* 字号16px */
  text-align: left;
}

.description-medium-center-16 {
  font-weight: 500;       /* Medium */
  font-size: 16px;        /* 字号16px */
  text-align: center;
}

/* 首页轮播图标题字体样式 */
.title-medium-title-center {
  font-weight: 500;       /* Medium */
  font-size: 30px;        /* 字号30px */
  text-align: center;
}

.title-medium-center-12 {
  font-weight: 500;       /* Medium */
  font-size: 12px;        /* 字号12px */
  text-align: center;
}

/* 首页轮播图描述字体样式 */
.title-medium-center-18 {
  font-weight: 500;       /* Medium */
  font-size: 18px;        /* 字号18px */
  text-align: center;
}

/* 首页轮播图描述字体样式 */
.title-medium-center-24 {
  font-weight: 500;       /* Medium */
  font-size: 24px;        /* 字号24px */
  text-align: center;
}