/* =========================================================
   学院与专业介绍页（major-intro.htm）
   PC 端左右两列粘连：左卡（学院横排一行在上 + 专业一排两个在下）│ 右列介绍正文
   列表自然撑开、两列拉伸等高，不做列内滚动；
   专业按 本科/专科 分组，学院简介入口固定在列表上方；
   右列正文按需加载，带加载点动画 / 失败重试态。
   ≤992px 左卡整卡平铺，详情收为底部弹框
   ========================================================= */

/* ---------------- 页面底色带（news 区同款浅蓝，向下渐白并入页脚） ---------------- */
.mi-band {
  background: linear-gradient(180deg, #F5FBFE 0%, #EAF4FB 55%, #FFFFFF 100%);
  padding: 44px 0 84px;
}
.mi-section { display: flex; flex-direction: column; gap: 28px; }

/* ---------------- 区块标题（全区标题同款深蓝 + 两侧渐变短杠） ---------------- */
.mi-head { text-align: center; margin-bottom: 8px; }
.mi-title {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  font-size: clamp(24px, 1.9vw, 34px);
  font-weight: 700;
  color: #0F5E9C;
  letter-spacing: 3px;
}
.mi-title::before,
.mi-title::after {
  content: "";
  width: 46px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, #0988C5 0%, #4FC2DC 100%);
}
.mi-title::after { transform: scaleX(-1); }
.mi-sub { margin-top: 12px; font-size: 16px; color: #8C8C8C; letter-spacing: 1px; }

/* ---------------- 通用卡片（快捷导航卡同款白卡） ---------------- */
.mi-card {
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 12px 32px rgba(30, 90, 150, .08);
}
.mi-section [hidden] { display: none !important; }

/* =========================================================
   PC 左右两列粘连布局（默认样式即桌面，窄屏在下方响应式退化为竖排）：
   左卡 = 学院横排一行在上 + 专业列表（一排两个）在下；
   右列 = 介绍正文
   ========================================================= */
.mi-cols { display: flex; align-items: stretch; }
.mi-side-card {
  width: 400px;
  flex: none;
  padding: 18px 14px 16px;
  border-radius: 20px 0 0 20px;
  border-right: 1px solid #EAF2F8;
}
.mi-detail {
  flex: 1;
  min-width: 0;
  border-radius: 0 20px 20px 0;
  /* ≤992px 变身底部弹框（见响应式段） */
  scroll-margin-top: calc(var(--header-h) + 16px);
}

/* 列头：学院 / 专业 两个标签同款；专业列头括注提示（小一号浅色）、与上方学院行拉开 */
.mi-col-head {
  font-size: 15px;
  font-weight: 500;
  color: #8C8C8C;
  letter-spacing: 2px;
  padding: 6px 16px 12px;
  margin-bottom: 10px;
  border-bottom: 1px solid #EAF2F8;
}
.mi-col-head-majors { margin-top: 16px; }
.mi-col-sub {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  color: #A9BFCF;
}

/* ---------------- 第一级：学院（横排一行，名称在上徽标在下居中；
   左卡窄列里 7 字学院名单行放得下，学院增多自动同行分摊） ---------------- */
.mi-academy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  gap: 10px;
}
.mi-academy {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 58px;
  padding: 8px 6px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: #F3FAFE;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text);
  text-align: center;
  transition: background var(--tr), color var(--tr), border-color var(--tr), box-shadow .3s;
}
.mi-academy-name { white-space: normal; }
.mi-academy-count {
  flex: none;
  padding: 2px 7px;
  border-radius: 999px;
  background: #E1F2FC;
  font-size: 11px;
  font-weight: 400;
  color: #1E7BC8;
  transition: background var(--tr), color var(--tr);
}
.mi-academy:hover {
  background: #DFF3FC;
  color: #1E6FC0;
  border-color: #BFE3F7;
}

/* ---------------- 第二级：专业列（列表自然撑开，三列随之等高，
   与招生体系页同款行为——不做列内滚动，内容不藏进滚动区） ---------------- */
.mi-major-list { padding: 0 4px 0 2px; }

/* 学院简介入口：固定在专业列表上方，虚线描边与专业行区分 */
.mi-intro {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  min-height: 46px;
  margin-bottom: 12px;
  padding: 8px 14px;
  border: 1px dashed #9FD4EF;
  border-radius: 10px;
  background: #EDF7FD;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #0C6EA8;
  text-align: left;
  transition: background var(--tr), color var(--tr), border-color var(--tr), box-shadow .3s;
}
.mi-intro::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #18A3DC;
  box-shadow: 0 0 0 3px rgba(24, 163, 220, .16);
  transition: background .3s, box-shadow .3s;
}
.mi-intro:hover {
  background: #DFF3FC;
  border-color: #6FC2E8;
  color: #0A5C90;
}

/* 学院与专业选中态统一：侧栏标题同款主蓝渐变 */
.mi-academy.active,
.mi-intro.active,
.mi-major.active {
  background: linear-gradient(135deg, #0C81B9 0%, #29A4D1 55%, #4FC2DE 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 8px 18px rgba(14, 110, 160, .30);
}
.mi-academy.active .mi-academy-count { background: rgba(255, 255, 255, .24); color: #fff; }
.mi-intro.active { border-color: transparent; }
.mi-intro.active::before { background: #fff; box-shadow: 0 0 0 3px rgba(255, 255, 255, .32); }
.mi-academy:focus-visible,
.mi-intro:focus-visible,
.mi-major:focus-visible,
.mi-retry:focus-visible {
  outline: 2px solid #1E7BC8;
  outline-offset: 2px;
}

/* 分组标签：本科专业 / 专科专业 · 数量，后接细分隔线补齐整行 */
.mi-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 2px 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: #8C8C8C;
}
.mi-group .n { font-size: 12px; font-weight: 400; color: #A8BFCF; }
.mi-group::after { content: ""; flex: 1; height: 1px; background: #EAF2F8; }

/* 专业行：一排两个；长名称允许两行截断（完整名称见 title 与右列标题）；
   行首圆点与「学院简介」入口同款（绝对定位，不参与 -webkit-box 截断布局） */
.mi-major-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.mi-major {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  position: relative;
  min-height: 44px;
  padding: 9px 12px 9px 30px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: #F5FBFE;
  font-size: 15px;
  line-height: 1.55;
  color: var(--c-text2);
  text-align: left;
  transition: background var(--tr), color var(--tr), border-color var(--tr), box-shadow .3s;
}
.mi-major::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 50%;
  margin-top: -3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #18A3DC;
  box-shadow: 0 0 0 3px rgba(24, 163, 220, .16);
  transition: background .3s, box-shadow .3s;
}
.mi-major.active::before { background: #fff; box-shadow: 0 0 0 3px rgba(255, 255, 255, .32); }
.mi-major:hover {
  background: #DFF3FC;
  color: #1E6FC0;
  border-color: #9FC3EF;
}

/* ---------------- 第三级：介绍正文（文章页正文结构，顶部对齐） ---------------- */
.mi-detail { padding: 40px 48px 46px; }

/* 手机端弹框附属件（把手/关闭钮/遮罩）：桌面隐藏，手机样式在响应式段 */
.mi-sheet-bar { display: none; }
.mi-backdrop { display: none; }
/* 标题在上，meta（所属学院等）紧随其下，间距收紧 */
.mi-detail-title {
  font-size: 28px;
  line-height: 1.75;
  font-weight: 700;
  color: var(--c-text);
  text-align: center;
  margin-bottom: 8px;
}
.mi-detail-meta {
  margin-bottom: 28px;
  text-align: center;
  font-size: 13px;
  letter-spacing: 1px;
  color: #9B9B9B;
}
.mi-detail .article-body { max-width: 1000px; margin: 0 auto; }
/* 接口正文已剥内联样式，段落排版归这里管 */
.mi-content p { margin: 0 0 14px; text-indent: 2em; text-align: justify; }
.mi-content p:last-child { margin-bottom: 0; }
.mi-content a { color: var(--c-blue); }
.mi-content a:hover { text-decoration: underline; }

/* ---------------- 加载 / 失败 / 空态 ---------------- */
.mi-hint {
  padding: 26px 0;
  text-align: center;
  font-size: 14px;
  color: #9B9B9C;
  animation: miPulse 1.6s ease-in-out infinite;
}
.mi-loading {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 64px 0;
}
.mi-loading i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #4FC2DC;
  animation: miDot 1s ease-in-out infinite;
}
.mi-loading i:nth-child(2) { animation-delay: .15s; }
.mi-loading i:nth-child(3) { animation-delay: .3s; }
@keyframes miDot {
  0%, 100% { transform: translateY(0); opacity: .4; }
  50%      { transform: translateY(-8px); opacity: 1; }
}
@keyframes miPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: .45; }
}

/* 列表整卡加载失败：提示 + 重新加载按钮（正文级失败用小号同款按钮） */
.mi-fail { padding: 46px 24px; text-align: center; font-size: 16px; color: var(--c-text2); }
.mi-retry {
  margin-top: 18px;
  min-height: 42px;
  padding: 8px 30px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #0C81B9 0%, #29A4D1 55%, #4FC2DE 100%);
  color: #fff;
  font-size: 15px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: box-shadow .3s, opacity .3s;
}
.mi-retry:hover { box-shadow: 0 8px 18px rgba(14, 110, 160, .30); }
.mi-retry:disabled { opacity: .6; cursor: default; box-shadow: none; }
.mi-retry--sm { margin-top: 14px; min-height: 38px; padding: 6px 22px; font-size: 14px; letter-spacing: 1px; }
.mi-empty { padding: 48px 0; text-align: center; font-size: 15px; color: #9B9B9B; }

/* ---------------- 切换入场动画（重渲时轻浮起；
   只用 backwards 填充，动画结束后不占用 transform，悬停位移不受影响） ---------------- */
html.js .mi-anim { animation: miItemIn .5s cubic-bezier(.25, .7, .35, 1) backwards; }
@keyframes miItemIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html.js .mi-anim { animation: none; }
  .mi-hint { animation: none; }
  .mi-loading i { animation: none; opacity: .7; }
}

/* =========================================================
   响应式：≤992px 左卡整卡上下平铺（学院行在上、专业列表在下）；
   详情卡退场为「底部弹框」——遮罩 + 把手拖拽下滑关闭 + 右上角关闭钮
   ========================================================= */
@media (max-width: 992px) {
  .mi-band { padding: 32px 0 32px; }
  .mi-cols { flex-direction: column; }
  .mi-cols > .mi-card { border-radius: 16px; border-right: 0; }
  .mi-side-card { width: auto; padding: 16px 14px; }
  .mi-col-head { padding: 2px 4px 12px; }
  .mi-col-head-majors { margin-top: 12px; }

  .mi-academy { border-color: #DCEBF5; }

  .mi-major-list { padding: 0 2px; }
  .mi-intro { margin-bottom: 10px; }
  .mi-major-grid { grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); gap: 9px; }
  .mi-major {
    -webkit-line-clamp: 2;
    min-height: 48px;
    padding: 8px 10px 8px 26px;
    border-color: #E3E3E3;
    font-size: 14px;
    text-align: left;          /* 行首有圆点，文字随点左对齐 */
  }
  .mi-major::before { left: 9px; }

  /* ---------------- 底部弹框（第三级详情卡变身） ---------------- */
  .mi-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1200;
    background: rgba(15, 44, 80, .45);
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s, visibility 0s linear .3s;
  }
  .mi-backdrop.show {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
  }

  .mi-detail {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1201;
    display: flex;
    flex-direction: column;
    max-height: 84vh;
    padding: 0;                            /* 弹框整体贴边：滚动条随滚动区贴屏幕右缘 */
    border-radius: 20px 20px 0 0;
    box-shadow: 0 -12px 40px rgba(10, 50, 90, .25);
    transform: translateY(105%);
    visibility: hidden;                    /* 收起时不可见也不可聚焦 */
    transition: transform .38s cubic-bezier(.25, .7, .35, 1), visibility 0s linear .38s;
  }
  .mi-detail.sheet-open {
    transform: translateY(0);
    visibility: visible;
    transition-delay: 0s;
  }
  .mi-detail.dragging { transition: none; }

  /* 把手行：拖拽下滑关闭（touch-action:none 禁掉原生滚动手势抢占） */
  .mi-sheet-bar {
    display: block;
    position: relative;
    flex: none;
    min-height: 44px;
    padding: 12px 18px 4px;
    touch-action: none;
    cursor: grab;
  }
  .mi-sheet-bar:active { cursor: grabbing; }
  .mi-sheet-handle {
    display: block;
    width: 44px;
    height: 5px;
    margin: 0 auto;
    border-radius: 3px;
    background: #D6E6F2;
  }
  .mi-sheet-close {
    position: absolute;
    top: 5px;
    right: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid #E0EDF7;
    border-radius: 50%;
    background: #F3FAFE;
    color: #4A7FA8;
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    transition: background var(--tr), color var(--tr);
  }
  .mi-sheet-close:hover { background: #DFF3FC; color: #0C6EA8; }

  /* 弹框内标题/meta 自带左右留白（避让右上角关闭钮），
     正文区贴满弹框宽 → 滚动条贴屏幕右缘，文字靠内边距与滚动条分开 */
  .mi-detail-title { font-size: 22px; padding: 0 44px; margin-bottom: 5px; }
  .mi-detail-meta { margin-bottom: 14px; padding: 0 18px; }
  .mi-content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0 18px calc(34px + env(safe-area-inset-bottom)) 18px;
  }
  .mi-content::-webkit-scrollbar { width: 3px; }
  .mi-content::-webkit-scrollbar-thumb { border-radius: 2px; background: #BFDCEF; }
  .mi-content { scrollbar-width: thin; scrollbar-color: #BFDCEF transparent; }

  /* 弹框打开时锁背景滚动 */
  html.mi-sheet-lock, html.mi-sheet-lock body { overflow: hidden; }
}

@media (max-width: 768px) {
  .mi-band { padding: 26px 0 48px; }
  .mi-head { margin-bottom: 2px; }
  .mi-title { gap: 12px; letter-spacing: 2px; }
  .mi-title::before, .mi-title::after { width: 26px; }
  .mi-sub { font-size: 13px; letter-spacing: 0; }

  .mi-side-card { padding: 14px 12px 16px; }
  .mi-col-head { padding: 0 2px 10px; font-size: 14px; letter-spacing: 1px; }
  .mi-academy-grid { gap: 9px; }
  .mi-col-head-majors { margin-top: 10px; }

  .mi-intro { min-height: 44px; font-size: 14px; }
  .mi-major-grid { grid-template-columns: repeat(auto-fill, minmax(122px, 1fr)); }
  .mi-major { min-height: 46px; font-size: 13.5px; }

  .mi-detail-title { font-size: 20px; margin-bottom: 4px; }
  .mi-detail-meta { margin-bottom: 12px; font-size: 12px; }
  .mi-content { font-size: 16px; }
  .mi-content p { margin-bottom: 12px; }
}