:root {
  /* 护眼配色：降饱和蓝 + 暖米绿背景，减少蓝光与强对比 */
  --theme-primary: #5e9bc7;
  --theme-primary-dark: #4a7da8;
  --theme-primary-light: #8fbbda;
  --theme-bg: #f0f4ed;
  --theme-footer-bg: #eef2e6;
  --theme-border: #d8dfd6;
  --theme-text-muted: #6b7a8c;
  --theme-warm-white: #faf9f3;
}

body,
html {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  background: var(--theme-bg);
  color: #3b3b3b;
}

.logo {
  width: 30px;
  height: auto;
  vertical-align: middle;
  margin-right: 10px;
  flex-shrink: 0;
}

.header {
  width: 100%;
  height: auto;
  min-height: 3.2rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--theme-warm-white);
  border-bottom: 1px solid var(--theme-border);
  padding: 8px 16px;
  z-index: 211;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  color: #3b3b3b;
}

.brand-sub {
  font-size: 12px;
  color: var(--theme-text-muted);
}

main {
  padding-top: 4.5rem;
}

.content1 {
  width: 100%;
  background: var(--theme-bg);
  text-align: center;
  margin-top: 3.5rem;
  padding-bottom: 3rem;
}

.content4 {
  width: 100%;
  background: var(--theme-warm-white);
}

.company-content {
  font-size: 12px;
  color: #3b3b3b;
  text-align: center;
  margin-top: 7px;
}

.pcshow {
  display: none;
}

.container {
  width: auto;
  max-width: 680px;
  padding: 0 15px;
}

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

/* Bootstrap 5 主题覆盖 */
.btn-primary {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--theme-primary);
  --bs-btn-border-color: var(--theme-primary);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--theme-primary-dark);
  --bs-btn-hover-border-color: var(--theme-primary-dark);
  --bs-btn-active-color: #fff;
  --bs-btn-active-bg: var(--theme-primary-dark);
  --bs-btn-active-border-color: var(--theme-primary-dark);
}

.card {
  border-color: var(--theme-border);
  background: var(--theme-warm-white);
  box-shadow: 0 4px 12px rgba(90, 110, 95, 0.06);
}

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

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