/* 移动端导航：全屏侧边栏（首页 / 资讯页共用，隔离顶栏内联样式） */

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #141827;
  cursor: pointer;
  flex: 0 0 auto;
}

.nav-toggle-lines {
  display: grid;
  gap: 6px;
  width: 22px;
}

.nav-toggle-lines span {
  display: block;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(17, 24, 39, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: opacity 240ms ease, visibility 240ms ease;
}

.mobile-nav-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 130;
  width: 100%;
  max-width: 100%;
  height: 100dvh;
  background: #fff;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 280ms ease;
}

.mobile-nav-drawer.is-open {
  transform: translateX(0);
}

.mobile-nav-head {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 64px;
  padding: 0 16px;
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
}

.mobile-nav-head .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1 1 auto;
}

.mobile-nav-head .brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  object-fit: contain;
  mix-blend-mode: multiply;
  filter: saturate(1.06);
}

.mobile-nav-head .brand-name {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
  min-width: 0;
}

.mobile-nav-head .brand-cn {
  font-size: 18px;
  font-weight: 800;
  color: #141827;
}

.mobile-nav-head .brand-en {
  font-size: 10px;
  font-weight: 600;
  color: #4f586b;
  text-transform: uppercase;
}

.mobile-nav-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: #141827;
  cursor: pointer;
}

.mobile-nav-close svg {
  width: 22px;
  height: 22px;
  stroke-width: 2;
}

.mobile-nav-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  background: #fff;
  border-bottom: 1px solid rgba(118, 112, 176, 0.13);
}

.mobile-nav-drawer .menu--drawer {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0;
  margin: 0;
  padding: 0;
  flex: none;
  min-width: 0;
}

.mobile-nav-drawer .menu--drawer a {
  position: relative;
  display: block;
  padding: 22px 24px 20px;
  color: #242b3b;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.4;
  white-space: nowrap;
  background: #fff;
  border-bottom: 1px solid rgba(118, 112, 176, 0.1);
  transition: color 180ms ease;
}

.mobile-nav-drawer .menu--drawer a:hover,
.mobile-nav-drawer .menu--drawer a.active {
  color: #4f35e7;
  background: #fff;
}

.mobile-nav-drawer .menu--drawer a::after,
.mobile-nav-drawer .menu--drawer a.active::after {
  content: none;
  display: none;
}

.mobile-nav-foot {
  flex: 0 0 auto;
  padding: 20px 24px calc(24px + env(safe-area-inset-bottom, 0px));
  background: #fff;
}

body.mobile-nav-open {
  overflow: hidden;
}

@media (max-width: 920px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  .mobile-nav-head .brand {
    gap: 8px;
  }

  .mobile-nav-head .brand-mark {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
  }

  .mobile-nav-head .brand-name {
    gap: 2px;
  }

  .mobile-nav-head .brand-cn {
    font-size: 15px;
    line-height: 1.05;
    white-space: nowrap;
  }

  .mobile-nav-head .brand-en {
    font-size: 8.5px;
    letter-spacing: 0;
    white-space: nowrap;
  }
}

@media (max-width: 480px) {
  .mobile-nav-head .brand {
    gap: 7px;
  }

  .mobile-nav-head .brand-mark {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .mobile-nav-head .brand-cn {
    font-size: 14px;
  }

  .mobile-nav-head .brand-en {
    font-size: 8px;
  }
}