/* 全站品牌标识：营销站 + 用户门户顶栏 / 登录卡 */
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}
.brand-mark:hover .brand-mark__zh {
  color: #93c5fd;
}
.brand-mark__icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #2563eb 0%, #7c3aed 55%, #06b6d4 100%);
  box-shadow: 0 4px 18px rgba(59, 130, 246, 0.35);
  flex-shrink: 0;
}
.brand-mark__glyph {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.04em;
}
.brand-mark__text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}
.brand-mark__row {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  flex-wrap: wrap;
}
.brand-mark__zh {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, #e0f2fe 0%, #93c5fd 50%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: color 0.2s;
}
.brand-mark__en {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #64748b;
}
.brand-mark__badge {
  font-size: 0.68rem;
  font-weight: 600;
  color: #94a3b8;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .brand-mark__badge {
    display: none;
  }
  .brand-mark__en {
    display: none;
  }
}

/* 用户门户顶栏（覆盖旧 .logo 纯文字） */
body.user-portal .header .brand-mark,
body.user-portal .header .logo.brand-mark {
  cursor: pointer;
}
body.user-portal .header .logo:not(.brand-mark) {
  font-size: 1.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, #38bdf8, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 登录 / 注册大卡居中品牌 */
.auth-card__brand {
  display: flex;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.auth-card__brand .brand-mark {
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.auth-card__brand .brand-mark__icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 16px;
}
.auth-card__brand .brand-mark__glyph {
  font-size: 1.5rem;
}
.auth-card__brand .brand-mark__text {
  align-items: center;
  text-align: center;
}
.auth-card__brand .brand-mark__zh {
  font-size: 1.75rem;
}
.auth-card__brand .brand-mark__badge {
  display: block;
  font-size: 0.8rem;
}

@media (max-width: 480px) {
  .auth-card__brand .brand-mark__icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 14px;
  }

  .auth-card__brand .brand-mark__glyph {
    font-size: 1.25rem;
  }
}