MediaWiki:Mainpage.css：修订间差异

/* 首页样式：仅在首页生效 */
body.page-Main_Page .banner {
  height: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #8B0000, #B22222); /* 改进对比度 */
  color: white;
  font-weight: bold;
  border-radius: 12px;
  padding: 12px 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  text-align: center;
}

body.page-Main_Page .banner-text {
  margin: 0;
  line-height: 1.4;
}

body.page-Main_Page .banner .chinese-text {
  font-size: 24px;
  font-weight: 700;
}

body.page-Main_Page .banner .english-text {
  font-size: 16px;
  font-weight: 500;
  opacity: 0.9;
}

/* 当屏幕宽度大于 768px（如平板和大屏幕设备） */
@media screen and (min-width: 768px) {
  body.page-Main_Page .banner .chinese-text {
    font-size: 28px;
  }

  body.page-Main_Page .banner .english-text {
    font-size: 18px;
  }
}

/* 当屏幕宽度小于 480px（如手机设备） */
@media screen and (max-width: 480px) {
  body.page-Main_Page .banner .chinese-text {
    font-size: 20px;
  }

  body.page-Main_Page .banner .english-text {
    font-size: 14px;
  }
}

/* 内容块样式 */
body.page-Main_Page .content-box {
  margin: 10px;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid #e0e0e0;
  -webkit-transition: -webkit-transform 0.3s ease, box-shadow 0.3s ease;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform; /* 性能优化 */
  backface-visibility: hidden; /* 性能优化 */
}

body.page-Main_Page .content-box:hover {
  -webkit-transform: translateY(-5px);
  -moz-transform: translateY(-5px);
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

body.page-Main_Page .content-box:focus {
  outline: 2px solid #0066cc; /* 可访问性改进 */
  outline-offset: 2px;
}

body.page-Main_Page .content-box h2 {
  position: relative;
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 2px solid red;
}

body.page-Main_Page .content-box p {
  line-height: 1.6;
}

/* Flex 容器 */
body.page-Main_Page .flex-container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

body.page-Main_Page .flex-container .content-box {
  flex: 1;
  max-width: 33.33%;
  box-sizing: border-box;
}

/* 移动端优化 */
@media (max-width: 768px) {
  body.page-Main_Page .flex-container {
    flex-direction: column;
    gap: 15px; /* 统一间距 */
  }

  body.page-Main_Page .flex-container .content-box {
    max-width: none; /* 移除限制 */
    width: 100%;
    margin-bottom: 0; /* 统一使用 gap */
  }

  body.page-Main_Page .banner .chinese-text,
  body.page-Main_Page .banner .english-text {
    text-align: center;
  }

  body.page-Main_Page .banner .chinese-text {
    font-size: 20px;
  }

  body.page-Main_Page .banner .english-text {
    font-size: 14px;
  }
}

/* 为减少动画的用户提供支持 */
@media (prefers-reduced-motion: reduce) {
  body.page-Main_Page .content-box {
    -webkit-transition: none;
    transition: none;
  }

  body.page-Main_Page .content-box:hover {
    -webkit-transform: none;
    -moz-transform: none;
    transform: none;
  }
}

/* 暗色模式覆盖（Citizen: night） */
.skin-theme-clientpref-night body.page-Main_Page .banner {
  background: linear-gradient(135deg, #3a0c0c, #5a1a1a);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.45);
}

.skin-theme-clientpref-night body.page-Main_Page .content-box {
  border-color: #2f2f2f;
  background-color: #1c1c1c;
}

.skin-theme-clientpref-night body.page-Main_Page .content-box:hover {
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.55);
}

.skin-theme-clientpref-night body.page-Main_Page .content-box:focus {
  outline-color: #5ea0ff;
}

.skin-theme-clientpref-night body.page-Main_Page .content-box h2 {
  border-bottom-color: #b94a4a;
}