body, html {
  height: 100%;
  margin: 0;
  padding: 0;
}

.fullscreen-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  overflow: hidden;
}

.bg-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.18);
  z-index: 2;
}

.fullscreen-bg img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 1;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 64px;
  background: rgba(0,0,0,0.6);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.navbar ul {
  list-style: none;
  margin: 0;
  padding: 0 64px 0 0; /* 右侧内边距加大，左侧为0 */
  display: flex;
  gap: 24px;
  justify-content: flex-end;
  width: 100%;
  /* 新增：整体往左移动一些 */
  transform: translateX(-40px);
}

.navbar li {
  display: flex;
  align-items: center;
}

.navbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #ffffff;
  text-decoration: none;
  font-size: 14px;
  padding: 4px 8px;
  transition: background 0.2s, color 0.2s;
  border-radius: 4px;
}

.navbar a:hover {
  background: #fff;
  color: #222;
  /*opacity: 0.5;*/
}

.navbar img {
  width: 60px;
  height: 30px;
  margin-bottom: 4px;
  object-fit: contain;
  display: block;
}

.navbar li:last-child a {
  width: 64px; /* 原本32px，这里加大2倍 */
  height: 30px;
  justify-content: center;
}

.navbar li:last-child img {
  width: 128px;
  height: 64px;
}

.navbar li:last-child a:hover {
  background: none;
  color: inherit;
}