/* 极简 Header：仅 Logo 左对齐，白底，底部 1px 浅灰描边 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  height: 50px;
  background: #ffffff;
  border-bottom: 1px solid var(--card-border, #e5e7eb);
  box-sizing: border-box;
}

.site-header__inner {
  width: 100%;
  max-width: 1280px;
  height: 50px;
  margin: 0 auto;
  padding-left: 50px;
  padding-right: 50px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  box-sizing: border-box;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  height: 34px;
  text-decoration: none;
  color: var(--text-primary, #111827);
}

.site-header__logo-img {
  display: block;
  height: 34px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.site-header__logo-text {
  font-family: var(--font-heading, 'Plus Jakarta Sans', sans-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--primary, #1E77FF);
  letter-spacing: -0.01em;
}

@media only screen and (max-width: 767px) {
  .site-header,
  .site-header__inner {
    height: 50px;
  }
  .site-header__inner {
    padding-left: 16px;
    padding-right: 16px;
  }
  .site-header__logo,
  .site-header__logo-img {
    height: 30px;
  }
  .site-header__logo-img {
    max-width: 180px;
  }
  .site-header__logo-text {
    font-size: 16px;
  }
}