.botjia-top-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  background: rgba(10,15,26,.88);
  backdrop-filter: blur(18px);
}
.botjia-top-nav__inner {
  width: min(1180px, calc(100% - 40px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.botjia-top-nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  text-decoration: none;
}
.botjia-top-nav__mark {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 140, 255, 0.3);
}
.botjia-top-nav__mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.botjia-top-nav__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.botjia-top-nav__name {
  font-size: 16px;
  font-weight: 700;
  color: #f0f4f8;
  letter-spacing: 2px;
}
.botjia-top-nav__slogan {
  font-size: 10px;
  color: #3b82f6;
  letter-spacing: 3px;
  margin-top: 2px;
}
.botjia-top-nav__links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #94a3b8;
  font-size: 14px;
  white-space: nowrap;
}
.botjia-top-nav__links a {
  color: inherit;
  text-decoration: none;
  transition: color .2s;
  white-space: nowrap;
}
.botjia-top-nav__links a:hover,
.botjia-top-nav__links a.active {
  color: #3b82f6;
}
.botjia-top-nav__links a.active {
  font-weight: 600;
}
.botjia-top-nav__more {
  position: relative;
  display: flex;
  align-items: center;
}
.botjia-top-nav__more-button {
  width: 28px;
  height: 28px;
  display: grid;
  grid-template-columns: repeat(2, 4px);
  grid-template-rows: repeat(2, 4px);
  place-content: center;
  gap: 5px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  transition: background .2s;
}
.botjia-top-nav__more-button span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #94a3b8;
  transition: background .2s;
}
.botjia-top-nav__more-button:hover {
  background: rgba(148, 163, 184, 0.06);
}
.botjia-top-nav__more-button:hover span {
  background: #cbd5e1;
}
.botjia-top-nav__more.open .botjia-top-nav__more-button {
  background: rgba(59, 130, 246, 0.1);
}
.botjia-top-nav__more.open .botjia-top-nav__more-button span {
  background: #60a5fa;
}
.botjia-top-nav__more-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: max-content;
  min-width: 0;
  padding: 5px;
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 10px;
  background: rgba(12, 19, 34, 0.96);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(16px);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity .16s, transform .16s;
}
.botjia-top-nav__more-menu::before {
  content: '';
  position: absolute;
  top: -5px;
  right: 10px;
  width: 9px;
  height: 9px;
  background: rgba(12, 19, 34, 0.96);
  border-left: 1px solid rgba(148, 163, 184, 0.16);
  border-top: 1px solid rgba(148, 163, 184, 0.16);
  transform: rotate(45deg);
}
.botjia-top-nav__more.open .botjia-top-nav__more-menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.botjia-top-nav__more.closing .botjia-top-nav__more-menu {
  display: none;
  opacity: 0;
  pointer-events: none;
}
.botjia-top-nav__more-menu a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 9px;
  border-radius: 8px;
  color: #f0f4f8;
  white-space: nowrap;
  font-size: 13px;
}
.botjia-top-nav__more-menu a:hover {
  background: rgba(59, 130, 246, 0.12);
  color: #fff;
}
.botjia-top-nav__more-menu a + a {
  margin-top: 2px;
}
.botjia-top-nav__more-menu a::after {
  content: '›';
  margin-left: 0;
  color: #64748b;
  font-size: 16px;
  line-height: 1;
}