/* ============================================================
 * mint-breeze 皮肤包样式（blue-white 派生，docs/10 皮肤包契约 §5）
 * 清新薄荷风：薄荷青品牌色 + 圆角 12px + 柔和阴影 + 卡片网格列表
 * + 几何圆点装饰与大留白；无纹理、无通栏大图、无复杂动效。
 * 轮播图设计尺寸约定：1920×560（管理端上传端按此引导裁剪）。
 * ============================================================ */
:root {
  --primary: #17A2A2;
  --primary-dark: #0F7C7C;
  --primary-light: #E6F6F6;
  --text: #2F3E3C;
  --text-light: #7D8F8C;
  --bg: #F5FBFA;
  --card-bg: #FFFFFF;
  --border: #DDF0EE;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-soft: 0 6px 18px rgba(15, 124, 124, .08);
  --shadow-hover: 0 12px 28px rgba(15, 124, 124, .14);
  --max-width: 1200px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--primary); }
img { max-width: 100%; }
time, .item-meta { color: var(--text-light); font-size: 13px; }
.empty { color: var(--text-light); text-align: center; padding: 32px 0; }

/* ===== 头部：细线顶栏 + 居中品牌行 + 白底导航（桌面吸顶） ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--card-bg);
  box-shadow: var(--shadow-soft);
}
/* 细线顶栏：院系切换在左、站内搜索在右；院系未配置时搜索仍靠右 */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  padding: 7px max(16px, calc((100% - var(--max-width)) / 2 + 16px));
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.top-bar .site-colleges { margin-right: auto; }
/* 居中品牌行：两侧几何圆点装饰（纯 CSS，无纹理） */
.brand-row {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 18px 16px 14px;
}
.brand-row::before, .brand-row::after {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 10px;
  opacity: .45;
  background-image:
    radial-gradient(circle, var(--primary) 2.2px, transparent 2.8px),
    radial-gradient(circle, var(--primary) 1.6px, transparent 2.2px),
    radial-gradient(circle, var(--primary) 1.1px, transparent 1.7px);
  background-repeat: no-repeat;
  background-position: left center, center center, right center;
}
.brand-row::before { left: 6%; }
.brand-row::after { right: 6%; }
.site-brand { display: flex; align-items: center; gap: 14px; }
.site-logo { height: 52px; }
.site-name {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--primary-dark);
}
.site-name:hover { color: var(--primary); }
.site-search { display: flex; align-items: center; }
.site-search input {
  border: 1px solid var(--border);
  border-right: none;
  border-radius: var(--radius-pill) 0 0 var(--radius-pill);
  padding: 7px 16px;
  width: 220px;
  outline: none;
  background: var(--card-bg);
  color: var(--text);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.site-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}
.site-search button {
  border: none;
  background: var(--primary);
  color: #fff;
  padding: 7px 20px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  cursor: pointer;
  transition: background .15s ease;
}
.site-search button:hover { background: var(--primary-dark); }

/* ===== 专业院系下拉（院系子站切换）：胶囊开关 + 圆角白卡面板 ===== */
.site-colleges { position: relative; }
.site-colleges .colleges-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  cursor: pointer;
  color: var(--primary-dark);
  font-weight: 600;
  white-space: nowrap;
  transition: border-color .15s ease, background .15s ease;
}
.site-colleges:hover .colleges-toggle {
  border-color: var(--primary);
  background: var(--primary-light);
}
.site-colleges .colleges-arrow { font-style: normal; font-size: 12px; color: var(--primary); }
.site-colleges .colleges-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  max-height: 420px;
  overflow-y: auto;
  margin: 0;
  padding: 8px 0;
  list-style: none;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  z-index: 110;
}
.site-colleges:hover .colleges-menu { display: block; }
.site-colleges .colleges-menu li a {
  display: block;
  margin: 0 8px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text);
  white-space: nowrap;
}
.site-colleges .colleges-menu li a:hover { background: var(--primary-light); color: var(--primary-dark); }
.site-colleges .colleges-menu li.active a { color: var(--primary); font-weight: 600; }

/* ===== 主导航：白底 + 柔和文字层级，当前项圆点标记 ===== */
.site-nav { background: var(--card-bg); border-top: 1px solid var(--border); }
.site-nav ul {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.site-nav li a {
  position: relative;
  display: block;
  padding: 13px 20px;
  color: var(--text);
  font-weight: 500;
}
.site-nav li a:hover { color: var(--primary); }
.site-nav li.active a { color: var(--primary); font-weight: 600; }
/* 几何圆点：当前栏目下方的小圆点 */
.site-nav li.active > a::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5px;
  width: 5px;
  height: 5px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: var(--primary);
}

/* ===== 二级下拉导航：圆角白卡面板 ===== */
.site-nav > ul > li { position: relative; }
.site-nav li.has-sub > a::after { content: " ▾"; font-size: 12px; opacity: .7; }
.site-nav ul.sub-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 168px;
  max-width: none;
  margin: 0;
  padding: 8px 0;
  list-style: none;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  z-index: 100;
}
.site-nav li:hover > .sub-nav { display: block; }
.site-nav .sub-nav li a {
  margin: 0 8px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-weight: 400;
  white-space: nowrap;
  background: none;
}
.site-nav .sub-nav li a:hover { background: var(--primary-light); color: var(--primary-dark); }
.site-nav .sub-nav li.active a { color: var(--primary); font-weight: 600; }

/* ===== 首页轮播：容器内圆角卡片（非通栏），几何圆点指示器 ===== */
.banner {
  position: relative;
  grid-column: 1 / -1; /* .home-main 是三列网格，轮播必须跨满整行，否则被塞进首列变窄条 */
  width: min(var(--max-width), calc(100% - 32px));
  margin: 24px auto 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.banner-slides { position: relative; height: 400px; }
.banner-slide { display: none; position: absolute; inset: 0; }
.banner-slide.active { display: block; }
.banner-slide img { width: 100%; height: 100%; object-fit: cover; }
.banner-title {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 20px;
  color: #fff;
  font-weight: 500;
  background: linear-gradient(transparent, rgba(20, 63, 61, .62));
}
.banner-dots {
  position: absolute;
  bottom: 14px; right: 20px;
  display: flex; gap: 8px;
}
.banner-dots button {
  width: 9px; height: 9px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, .55);
  cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}
.banner-dots button.active { background: #fff; transform: scale(1.25); }

/* ===== 首页区块：卡片网格（头条通栏 + 栏目块一行 3 张） ===== */
.home-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 16px 56px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.top-strip, .category-block {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 24px;
}
.top-strip { grid-column: 1 / -1; }
/* 栏目标题：几何圆点标记（环形点），标题中等粗细、层级柔和 */
.section-title, .block-head h2 {
  margin: 0 0 14px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .02em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::before, .block-head h2::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 3.5px var(--primary-light);
}
.block-head { display: flex; align-items: center; justify-content: space-between; }
.more {
  flex: none;
  font-size: 13px;
  color: var(--text-light);
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.more:hover {
  color: var(--primary-dark);
  border-color: var(--primary);
  background: var(--primary-light);
}
.top-strip ul, .block-list { list-style: none; margin: 0; padding: 0; }
.top-strip li, .block-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}
.top-strip li:last-child, .block-list li:last-child { border-bottom: none; }
.top-strip li a, .block-list li a {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.top-badge {
  flex: none;
  color: var(--primary-dark);
  background: var(--primary-light);
  font-size: 12px;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
}

/* ===== 列表页：卡片网格（默认一行 3 张；listLayout=row 切换行列表） ===== */
.list-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 16px 56px;
}
.breadcrumb { color: var(--text-light); font-size: 13px; margin-bottom: 14px; }
.breadcrumb a { margin-right: 8px; }
.breadcrumb span { margin-left: 8px; }
.page-title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: .02em;
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-title::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 3.5px var(--primary-light);
}
.article-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.article-list li {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.article-list li:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.item-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.article-list li:hover .item-title { color: var(--primary); }
.item-summary {
  color: var(--text-light);
  font-size: 13.5px;
  line-height: 1.7;
  margin: 0;
  flex: 1;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}
.item-meta {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}
/* 布局变体：传统行列表（themeParams listLayout=row，见 list.html classappend） */
.list-rows .article-list { display: block; }
.list-rows .article-list li { display: block; margin-bottom: 16px; }
.list-rows .item-summary { -webkit-line-clamp: 2; flex: none; }
.list-rows .item-meta { border-top: none; padding-top: 0; margin-top: 6px; }

/* ===== 分页：胶囊页码 ===== */
.pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 28px 0 4px;
}
.pagination a {
  min-width: 36px;
  text-align: center;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--card-bg);
  font-size: 14px;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.pagination a:hover { color: var(--primary-dark); border-color: var(--primary); }
.pagination a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== 详情/单页：整卡承载，正文舒适行距 ===== */
.detail-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 16px 56px;
}
.detail-main .article {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 36px 40px;
}
.article-title {
  margin: 4px 0 14px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: .02em;
  text-align: center;
}
.article-meta {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--text-light);
  font-size: 13px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.article-content { line-height: 1.9; font-size: 16px; padding-top: 22px; word-break: break-word; }
.article-content img { height: auto; border-radius: var(--radius-sm); }
.article-content table { border-collapse: collapse; width: 100%; }
.article-content table td, .article-content table th { border: 1px solid var(--border); padding: 6px 10px; }
.article-sibling { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; font-size: 14px; }
.article-sibling a {
  flex: 1 1 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 14px 18px;
  transition: transform .18s ease, box-shadow .18s ease, color .15s ease;
}
.article-sibling a:hover {
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* ===== 页脚：浅薄荷底 + 圆点分隔条（三态渲染逻辑不动） ===== */
.site-footer {
  margin-top: 40px;
  background: var(--primary-light);
  color: var(--text);
  border-top: 1px solid var(--border);
}
.site-footer::before {
  content: "";
  display: block;
  height: 8px;
  width: min(var(--max-width), calc(100% - 32px));
  margin: 18px auto 0;
  background-image: radial-gradient(circle, var(--primary) 1.6px, transparent 2.2px);
  background-size: 16px 8px;
  background-repeat: repeat-x;
  opacity: .4;
}
.footer-links {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.links-group { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; font-size: 13px; }
.group-name { font-weight: 600; margin-right: 4px; color: var(--primary-dark); }
.links-group a {
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  transition: background .15s ease, color .15s ease;
}
.links-group a:hover { background: rgba(255, 255, 255, .75); color: var(--primary-dark); }
.footer-info {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 16px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-light);
}
.footer-info p { margin: 4px 0; }

/* B4 友链 Logo：与名称并排小图（高度 ~20px，垂直居中；过宽截断不撑破页脚） */
.links-group a .link-logo {
  height: 20px;
  width: auto;
  max-width: 64px;
  object-fit: contain;
  vertical-align: middle;
  margin-right: 4px;
  border-radius: 4px;
}

/* ===== 平板（≤992px）：网格降为两列，隐藏品牌行圆点装饰 ===== */
@media (max-width: 992px) {
  .home-main { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand-row::before, .brand-row::after { display: none; }
}

/* ===== 移动端（≤768px）：取消吸顶，网格单列，导航横向滑动 ===== */
@media (max-width: 768px) {
  .site-header { position: static; }
  .top-bar { padding: 8px 14px; justify-content: flex-start; flex-wrap: wrap; }
  .top-bar .site-colleges { margin-right: 0; }
  .site-search { flex: 1; }
  .site-search input { flex: 1; width: auto; min-width: 0; }
  .brand-row { padding: 14px 16px 10px; }
  .site-logo { height: 40px; }
  .site-name { font-size: 22px; }
  .site-nav ul {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .banner-slides { height: 200px; }
  .home-main { grid-template-columns: minmax(0, 1fr); padding: 18px 14px 40px; }
  .article-list { grid-template-columns: minmax(0, 1fr); }
  .detail-main .article { padding: 22px 16px; }
  .article-title { font-size: 21px; }
  /* 触屏无 hover：子菜单静态平铺（缩进列表），不做浮层 */
  .site-nav ul.sub-nav {
    display: block;
    position: static;
    border: none;
    box-shadow: none;
    background: transparent;
    min-width: 0;
    padding: 0 0 6px;
  }
  .site-nav .sub-nav li a { margin: 0; padding: 8px 16px 8px 34px; border-radius: 0; color: var(--text-light); }
  .site-nav .sub-nav li a:hover { background: var(--primary-light); color: var(--primary-dark); }
}


/* ===== 左侧栏目导航（docs/11）：有二级节点的模块，栏目/文章页左侧展示兄弟目录 ===== */
.list-main.has-sidenav, .detail-main.has-sidenav { display: flex; align-items: flex-start; gap: 24px; }
.has-sidenav .list-body { flex: 1; min-width: 0; }
.side-nav { flex: none; width: 220px; background: var(--card-bg, #fff); border: 1px solid var(--border); overflow: hidden; }
.side-nav-head { background: var(--primary); color: #fff; font-size: 20px; font-weight: 700; text-align: center; padding: 18px 12px; letter-spacing: 2px; }
.side-nav-list { list-style: none; margin: 0; padding: 0; }
.side-nav-item + .side-nav-item { border-top: 1px dashed var(--border); }
.side-nav-item a { display: block; padding: 12px 16px; color: var(--text); text-decoration: none; font-size: 15px; transition: background .15s ease, color .15s ease; }
.side-nav-item a:hover { color: var(--primary); background: var(--bg); }
.side-nav-item.active a { background: var(--primary); color: #fff; font-weight: 600; text-decoration: none; }
/* 顶导航二级下拉当前项高亮（docs/11 顺带） */
.site-nav ul.sub-nav li.active a { color: var(--primary); }
@media (max-width: 768px) {
  .list-main.has-sidenav, .detail-main.has-sidenav { flex-direction: column; gap: 12px; }
  .side-nav { width: 100%; }
  .side-nav-list { display: flex; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .side-nav-item { flex: none; }
  .side-nav-item + .side-nav-item { border-top: none; border-left: 1px dashed var(--border); }
  .side-nav-item a { white-space: nowrap; }
}
@media print {
  .side-nav { display: none; }
  .list-main.has-sidenav, .detail-main.has-sidenav { display: block; }
}