/* ============================================================
   热轧作业区考试系统 — 全局样式
   主题：浅色 / 深色 + 玻璃拟态 + 流畅微交互
   ============================================================ */

:root {
  --bg: #f1f5f9;
  --bg-grad-1: #e0e7ff;
  --bg-grad-2: #fce7f3;
  --bg-grad-3: #d1fae5;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: rgba(15, 23, 42, 0.08);
  --primary: #4f46e5;
  --primary-2: #7c3aed;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.18);
  --radius: 16px;
}
[data-theme="dark"] {
  --bg: #0b1120;
  --bg-grad-1: #1e1b4b;
  --bg-grad-2: #312e81;
  --bg-grad-3: #0f172a;
  --surface: rgba(30, 41, 59, 0.62);
  --surface-solid: #111827;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.16);
  --primary: #818cf8;
  --primary-2: #a78bfa;
  --shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 10% -10%, var(--bg-grad-1), transparent 60%),
    radial-gradient(1000px 500px at 110% 10%, var(--bg-grad-2), transparent 55%),
    radial-gradient(900px 600px at 50% 120%, var(--bg-grad-3), transparent 60%);
  background-attachment: fixed;
  transition: background-color .4s, color .4s;
}
a { color: var(--primary); text-decoration: none; }

/* 学习中心 / 游戏化 子导航 —— 玻璃质感分段控件 */
.gam-nav{
  display:flex;gap:6px;margin-bottom:18px;flex-wrap:wrap;
  padding:5px;border-radius:14px;
  background:var(--surface);
  border:1px solid var(--border);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 4px 16px rgba(15,23,42,.06);
  width:fit-content;max-width:100%;
}
.gam-nav a{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:10px;
  text-decoration:none;color:var(--muted);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:color .25s cubic-bezier(.16,1,.3,1),
             background .25s cubic-bezier(.16,1,.3,1),
             transform .25s cubic-bezier(.16,1,.3,1),
             box-shadow .25s cubic-bezier(.16,1,.3,1);
}
.gam-nav a .emo{font-size:16px;line-height:1;filter:grayscale(.2);transition:filter .25s}
.gam-nav a:hover{color:var(--text);background:var(--border);transform:translateY(-1px)}
.gam-nav a:hover .emo{filter:none}
.gam-nav a.active{
  color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 6px 18px -6px var(--primary);
  font-weight:700;
}
.gam-nav a.active .emo{filter:none}
@media(max-width:760px){
  .gam-nav{width:100%}
  .gam-nav a{flex:1 1 auto;justify-content:center;padding:9px 10px}
}

/* 布局 */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 250px; flex-shrink: 0;
  background: var(--surface);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-right: 1px solid var(--border);
  padding: 22px 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar .brand {
  display: flex; align-items: center; gap: 12px; padding: 6px 10px 18px;
  font-weight: 800; font-size: 17px; letter-spacing: .5px;
}
.sidebar .brand .logo {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  display: grid; place-items: center; color: #fff; font-size: 20px;
  box-shadow: 0 8px 20px -6px var(--primary);
}
.nav-group-title { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); padding: 14px 12px 6px; }
.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 12px; margin: 3px 0; border-radius: 11px;
  color: var(--text); font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all .2s cubic-bezier(.16,1,.3,1);
}
.nav-item:hover { background: var(--border); transform: translateX(2px); }
.nav-item.active { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; box-shadow: 0 10px 22px -10px var(--primary); }
.nav-item .ico { width: 20px; text-align: center; opacity: .9; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 64px; display: flex; align-items: center; gap: 14px;
  padding: 0 26px; background: var(--surface); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.topbar .title { font-size: 18px; font-weight: 700; }
.topbar .actions { display: flex; align-items: center; gap: 14px; }
/* 主题切换 / 通知铃铛：桌面端靠右常驻，手机端紧贴标题（不再塞进汉堡菜单） */
.topbar-quick { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.content { padding: 26px; flex: 1; }

/* 玻璃卡片 */
.glass {
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card { padding: 20px; margin-bottom: 20px; }
.card h3 { margin: 0 0 14px; font-size: 16px; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px){ .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);} }
@media (max-width: 760px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .sidebar{display:none;}
  .content{padding:16px;}
  /* 顶栏：允许换行，按钮不被压窄导致文字竖排 */
  .topbar{flex-wrap:wrap;height:auto;padding:10px 14px;gap:10px;}
  .topbar .actions{flex-wrap:wrap;gap:8px;justify-content:flex-start;}
  .title{font-size:16px;min-width:0;}
  .btn{white-space:nowrap;flex-shrink:0;}
  .user-chip{font-size:13px;}
  /* 表格：窄屏横向滚动，避免单元格被挤压、中文逐字换行(竖排) */
  .table,table{display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap;}
  /* 卡片/表单内长文本允许正常换行，不被强制压缩 */
  .card,.q-card,.glass{padding-left:16px;padding-right:16px;}
  /* 分页/操作区换行 */
  .pager,.row-actions{display:flex;flex-wrap:wrap;gap:8px;}
}

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 7px; justify-content: center;
  padding: 9px 16px; border-radius: 11px; border: 1px solid var(--border);
  background: var(--surface-solid); color: var(--text); font-weight: 600; font-size: 14px;
  cursor: pointer; transition: all .2s cubic-bezier(.16,1,.3,1);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; border: none; box-shadow: 0 10px 22px -10px var(--primary); }
.btn-success { background: var(--success); color: #fff; border: none; }
.btn-danger { background: var(--danger); color: #fff; border: none; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 11px; font-size: 13px; border-radius: 9px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
a.btn { text-decoration: none; }

/* 表单 */
.input, select.input, textarea.input {
  width: 100%; padding: 10px 13px; border-radius: 11px;
  border: 1px solid var(--border); background: var(--surface-solid); color: var(--text);
  font-size: 14px; outline: none; transition: border .2s, box-shadow .2s;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent); }
.filter-bar { margin-bottom:14px; }
.filter-row { display:flex; gap:10px; align-items:flex-end; flex-wrap:wrap; }
.filter-item { flex:1; min-width:140px; }
.filter-item .input { width:100%; box-sizing:border-box; }
.filter-btn { flex-shrink:0; align-self:flex-end; margin-left:auto; }
.filter-count { display:inline-flex; align-items:center; gap:6px; margin-top:10px; padding:7px 14px; background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary); border-radius:10px; font-size:13px; font-weight:500; }
.filter-count b { font-size:15px; font-weight:700; }
label.fld { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 6px; color: var(--muted); }
.form-row { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
@media (max-width:760px){ .form-row{grid-template-columns:1fr;} }
@media (max-width:760px){ .filter-item{min-width:45%;} .filter-btn{margin-left:0; width:100%;} }

/* 表格 */
.table, .tbl { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px; }
.table th, .tbl th { text-align: left; padding: 12px 14px; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--border); font-size: 12.5px; text-transform: uppercase; letter-spacing: .4px; }
.table td, .tbl td { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.table tbody tr, .tbl tbody tr { transition: background .15s; }
.table tbody tr:hover, .tbl tbody tr:hover { background: color-mix(in srgb, var(--primary) 6%, transparent); }

/* 成绩统计·考试列表：考试多了改为内部滚动，避免整页过长；表头吸顶 */
.exam-list-scroll { max-height: 440px; overflow-y: auto; overflow-x: auto; }
.exam-list-scroll > table > thead > tr > th { position: sticky; top: 0; background: var(--surface-solid); z-index: 2; }

/* 题库批量操作栏 */
.batch-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px 16px;
  padding: 12px 14px; margin-bottom: 14px;
  background: color-mix(in srgb, var(--primary) 7%, var(--surface-solid));
  border: 1px solid var(--border); border-radius: 14px;
  backdrop-filter: blur(8px);
}
.batch-bar .chk-all { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; cursor: pointer; white-space: nowrap; }
.batch-bar .chk-all input { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
.batch-bar .sel-info { color: var(--muted); font-size: 13px; white-space: nowrap; }
.batch-bar .sel-info b { color: var(--primary); font-size: 15px; }
.batch-bar .batch-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-left: auto; }
.batch-bar .batch-set { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.batch-bar .batch-set .input { padding: 7px 11px; font-size: 13px; border-radius: 9px; }
.batch-bar #chkAllHead { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
.table td:first-child .chk-row, .table th:first-child #chkAllHead { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
@media (max-width: 760px){
  .batch-bar { gap: 8px 10px; }
  .batch-bar .batch-actions { margin-left: 0; width: 100%; }
  .batch-bar .batch-set { width: 100%; }
  .batch-bar .batch-set .input { flex: 1 1 auto; min-width: 90px; }
}

/* 徽章 */
.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-primary { background: color-mix(in srgb, var(--primary) 16%, transparent); color: var(--primary); }
.badge-success { background: color-mix(in srgb, var(--success) 16%, transparent); color: var(--success); }
.badge-warning { background: color-mix(in srgb, var(--warning) 18%, transparent); color: #b45309; }
.badge-danger  { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); }
.badge-muted   { background: var(--border); color: var(--muted); }

/* 统计卡 */
.stat { padding: 20px; }
.stat .num { font-size: 30px; font-weight: 800; letter-spacing: -.5px; }
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 4px; }
.stat .ico { font-size: 22px; float: right; opacity: .8; }

/* 主题切换 */
.theme-toggle { width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface-solid); cursor: pointer; font-size: 18px; display: grid; place-items: center; transition: transform .3s; }
.theme-toggle:hover { transform: rotate(20deg) scale(1.05); }

/* 用户菜单 */
.user-chip { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.avatar { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg,var(--primary),var(--primary-2)); color:#fff; display:grid; place-items:center; font-weight:700; }

/* 登录页 */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: 100%; max-width: 420px; padding: 36px; }
.login-head { display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: 22px; }
.login-card .logo { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg,var(--primary),var(--primary-2)); display: grid; place-items: center; color: #fff; font-size: 28px; position: relative; overflow: hidden; flex: 0 0 auto; margin-bottom: 14px; box-shadow: 0 10px 24px -12px var(--primary); }
.login-title { margin: 0 0 5px; font-size: 22px; font-weight: 800; line-height: 1.3; letter-spacing: .5px; color: var(--text); position: relative; z-index: 2; }
.login-sub { margin: 0; font-size: 13px; color: var(--muted); }

/* 提示 */
.flash { padding: 12px 16px; border-radius: 12px; margin-bottom: 16px; font-size: 14px; font-weight: 500; }
.flash-success { background: color-mix(in srgb, var(--success) 16%, transparent); color: var(--success); }
.flash-error { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); }
.flash-info { background: color-mix(in srgb, var(--primary) 14%, transparent); color: var(--primary); }

/* 进度条 */
.progress { height: 8px; border-radius: 999px; background: var(--border); overflow: hidden; }
.progress > i { display: block; height: 100%; background: linear-gradient(90deg,var(--primary),var(--primary-2)); transition: width .4s; }

/* 动画 */
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.fade-up { animation: fadeUp .5s cubic-bezier(.16,1,.3,1) both; }
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:.5;} }
.pulse { animation: pulse 1.4s infinite; }

/* 考试答题 */
.exam-timer { font-variant-numeric: tabular-nums; font-weight: 800; font-size: 20px; }
.q-card { padding: 20px; margin-bottom: 16px; }
.opt { display: block; padding: 11px 14px; border: 1px solid var(--border); border-radius: 11px; margin: 8px 0; cursor: pointer; transition: all .18s; }
.opt:hover { border-color: var(--primary); }
.opt.sel { background: color-mix(in srgb, var(--primary) 12%, transparent); border-color: var(--primary); }
.magnetic { transition: transform .25s cubic-bezier(.16,1,.3,1); }
.magnetic:hover { transform: translateY(-3px) scale(1.02); }

/* 树 */
.tree-item { padding: 8px 10px; border-radius: 9px; }
.tree-item:hover { background: var(--border); }

/* ===== 移动端：顶栏汉堡菜单 ===== */
.menu-toggle { display:none; align-items:center; justify-content:center; width:42px; height:42px; border-radius:12px; border:1px solid var(--border); background:var(--surface-solid); font-size:20px; cursor:pointer; }
.desktop-only { display:flex; }
.mobile-only { display:none; }
[x-cloak]{ display:none !important; }
/* 导航抽屉：桌面默认隐藏，仅移动端启用（用类选择器，避免被 #id 特异性盖死） */
.nav-drawer, .nav-scrim { display:none; }
.nav-drawer .drawer-head { display:flex; align-items:center; justify-content:space-between; padding:6px 6px 14px; }
.nav-drawer .drawer-head .brand { padding:0; font-size:16px; }
.nav-drawer .nav-close { width:38px; height:38px; margin:0; }
.user-chip { position:relative; }
.user-dropdown { display:none; position:absolute; right:0; top:48px; width:172px; padding:8px; z-index:55; border-radius:14px; }
.user-dropdown.open { display:block; }
.dropdown-item { display:block; padding:9px 11px; border-radius:9px; text-decoration:none; color:var(--text); font-size:14px; font-weight:500; }
.dropdown-item:hover { background:var(--border); }

@media (max-width: 760px){
  .topbar { position:relative; }
  .menu-toggle { display:inline-flex; margin-left:auto; }
  /* 主题切换 / 通知铃铛：手机端紧贴标题，用户汉堡按钮仍推到最右 */
  .topbar-quick { margin-left: 12px; }
  /* 移动端导航抽屉（修复：手机端看不到系统导航菜单） */
  .nav-toggle { display:inline-flex; margin-left:0; }
  .nav-drawer {
    display:block; position:fixed; top:0; left:0; height:100vh; width:268px; max-width:84vw;
    transform:translateX(-100%); transition:transform .32s cubic-bezier(.16,1,.3,1);
    z-index:70; overflow-y:auto; padding:18px 14px;
    background:var(--surface-solid); border-right:1px solid var(--border);
    box-shadow:0 20px 50px -16px rgba(2,6,23,.5);
  }
  .nav-drawer.open { transform:translateX(0); }
  .nav-scrim {
    display:block; position:fixed; inset:0; background:rgba(2,6,23,.45);
    opacity:0; pointer-events:none; transition:opacity .3s; z-index:65;
  }
  .nav-scrim.open { opacity:1; pointer-events:auto; }
  .topbar .actions{
    display:none; position:absolute; top:58px; right:12px;
    flex-direction:column; align-items:stretch; gap:8px; min-width:190px;
    background:var(--surface-solid); border:1px solid var(--border);
    border-radius:14px; padding:12px; box-shadow:var(--shadow); z-index:60;
  }
  .topbar .actions.nav-open { display:flex; }
  .topbar .actions .btn { width:100%; justify-content:flex-start; }
  .topbar .user-chip { width:100%; }
  .desktop-only { display:none !important; }
  .mobile-only { display:inline-flex !important; }

  /* 个人中心·成长概览卡：手机端 2×2 网格对齐，消掉 flex 换行错位 */
  .pf-overview { display:grid !important; grid-template-columns:repeat(2,1fr); gap:14px; align-items:stretch; text-align:center; }
  .pf-overview > div { min-width:0 !important; }
  .pf-progress { min-width:0 !important; }

  /* 成绩等表格：移动端卡片化，标签固定窄宽(左) / 值占剩余(右，可换行)，操作按钮整行不溢出，卡片铺满 */
  .table.responsive, table.responsive { display:block; width:100%; border:0; box-sizing:border-box; white-space:normal; overflow:visible; }
  .table.responsive thead, table.responsive thead { display:none; }
  .table.responsive tbody tr, table.responsive tbody tr {
    display:block; width:100%; box-sizing:border-box; margin-bottom:14px; padding:14px 14px;
    background:var(--surface-solid); border:1px solid var(--border);
    border-radius:16px; box-shadow:var(--shadow);
  }
  .table.responsive tbody td, table.responsive tbody td {
    display:flex; align-items:flex-start; gap:10px;
    padding:11px 2px; border-bottom:1px solid var(--border); text-align:right;
    white-space:normal; word-break:break-word; overflow-wrap:anywhere;
  }
  .table.responsive tbody tr td:last-child, table.responsive tbody tr td:last-child { border-bottom:none; padding-bottom:2px; }
  .table.responsive tbody td::before, table.responsive tbody td::before {
    content:attr(data-label); flex:0 0 76px; font-size:13px; font-weight:600; color:var(--muted);
    text-align:left; letter-spacing:.3px;
  }
  /* 操作列：按钮独占整行，避免 flex 下 width:100% + 全局 flex-shrink:0 撑出卡片 */
  .table.responsive tbody td[data-label="操作"], table.responsive tbody td[data-label="操作"] { display:block; text-align:left; padding-top:6px; }
  .table.responsive tbody td[data-label="操作"]::before, table.responsive tbody td[data-label="操作"]::before { display:none; }
  .table.responsive tbody td[data-label="操作"] .btn, table.responsive tbody td[data-label="操作"] .btn { width:100%; justify-content:center; margin-top:4px; }
}

/* ===== 线性图标（SVG sprite）统一样式 ===== */
.icon{
  width:1.25em; height:1.25em;
  display:inline-block; flex:0 0 auto;
  vertical-align:-0.22em;
  fill:none; stroke:currentColor; stroke-width:2;
  stroke-linecap:round; stroke-linejoin:round; overflow:visible;
}
/* 导航图标 */
.nav-item .ico{display:inline-flex; align-items:center; justify-content:center}
.nav-item .ico .icon{width:20px; height:20px; vertical-align:middle}
/* 统计卡右上角图标 */
.stat .ico .icon{width:24px; height:24px; vertical-align:middle}
/* 主题切换按钮 */
.theme-toggle .icon{width:20px; height:20px}

/* 个人中心·成长概览卡（桌面：flex 横排，进度条撑满剩余） */
.pf-overview { display:flex; flex-wrap:wrap; gap:22px; align-items:center; padding:18px; margin-bottom:20px; }
.pf-progress { flex:1; min-width:200px; }
/* 品牌 logo 区 */
.logo .icon{width:1em; height:1em}
.brand .logo .icon{width:1em; height:1em}
/* 下拉菜单项 */
.dropdown-item .icon{width:1.1em; height:1.1em; margin-right:8px; vertical-align:-0.2em}
/* 按钮内图标 */
.btn .icon{margin-right:6px; vertical-align:-0.18em}
.btn.btn-sm .icon{margin-right:4px}
/* 标题/段落中独立图标轻微收紧间距 */
h1 .icon,h2 .icon,h3 .icon{vertical-align:-0.28em}

/* ===== 导入模板列说明表 ===== */
.col-help{margin:14px 0}
.col-help-table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.5}
.col-help-table th{
  text-align:left;padding:10px 12px;
  background:color-mix(in srgb,var(--primary) 10%,transparent);
  color:var(--text);font-weight:600;border:1px solid var(--border);
  white-space:nowrap;
}
.col-help-table td{
  padding:10px 12px;border:1px solid var(--border);
  color:var(--text);vertical-align:top;
  word-break:break-word;overflow-wrap:anywhere;
}
.col-help-table tbody tr:nth-child(even){background:color-mix(in srgb,var(--primary) 4%,transparent)}
.col-help-table td code{background:color-mix(in srgb,var(--primary) 10%,transparent);padding:1px 5px;border-radius:4px;font-size:12px}
.col-help-note{margin-top:8px;color:var(--muted);font-size:13px}

/* ============================================================
   知识点范围折叠下拉（按岗位浮层，高度受控，零外部依赖）
   浮层在触发器下方弹出，max-height 50vh + 内部滚动，
   不会撑爆页面，也不会无限遮挡。
   ============================================================ */
/* 含知识点折叠下拉的卡片：抬升层叠等级，确保浮层盖在下方题目卡片之上
   （.glass 的 backdrop-filter 会创建层叠上下文，不抬升则被后续 .glass 题目卡片覆盖） */
.kp-scope{position:relative;z-index:50}

.kp-cs{position:relative;width:100%;min-width:220px}
.kp-cs-trigger{
  width:100%;display:flex;align-items:center;gap:8px;
  text-align:left;cursor:pointer;font:inherit;
}
.kp-cs-label{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kp-cs-caret{transition:transform .25s cubic-bezier(.16,1,.3,1);flex:0 0 auto;opacity:.7}
.kp-cs.open .kp-cs-caret{transform:rotate(180deg)}

.kp-cs-panel{
  position:absolute;left:0;right:0;top:calc(100% + 6px);
  z-index:60;padding:8px;border-radius:14px;
  max-height:50vh;overflow-y:auto;
  background:var(--surface);
  border:1px solid var(--border);
  box-shadow:0 8px 30px rgba(0,0,0,.14),0 2px 8px rgba(0,0,0,.08);
  opacity:0;visibility:hidden;transform:translateY(-6px) scale(.98);
  transition:opacity .2s cubic-bezier(.16,1,.3,1),
             transform .2s cubic-bezier(.16,1,.3,1),
             visibility .2s;
  /* 自定义滚动条 */
  scrollbar-width:thin;scrollbar-color:var(--border) transparent;
}
.kp-cs-panel::-webkit-scrollbar{width:6px}
.kp-cs-panel::-webkit-scrollbar-track{background:transparent}
.kp-cs-panel::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.kp-cs-panel.open{opacity:1;visibility:visible;transform:none}

.kp-cs-search{padding:2px 4px 6px;position:sticky;top:0;background:var(--surface);z-index:2}
.kp-cs-search input{width:100%;font-size:13px}

.kp-cs-opts{padding:1px 0}
.kp-cs-opt{
  display:flex;align-items:center;gap:7px;
  padding:7px 10px;border-radius:9px;cursor:pointer;
  border:1px solid transparent;font-size:13px;color:var(--text);
  transition:background .15s,color .15s,border-color .15s;
}
.kp-cs-opt:hover{background:var(--border)}
.kp-cs-opt.selected{
  background:color-mix(in srgb,var(--primary) 12%,transparent);
  border-color:color-mix(in srgb,var(--primary) 35%,transparent);
  color:var(--primary);font-weight:600;
}
.kp-cs-otext{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kp-cs-tag{flex:0 0 auto;font-size:11px;color:var(--muted);margin-left:4px;white-space:nowrap}
.kp-cs-opt.selected .kp-cs-tag{color:color-mix(in srgb,var(--primary) 75%,transparent)}

.kp-cs-group{margin-top:2px}
.kp-cs-group + .kp-cs-group{border-top:1px solid var(--border);padding-top:3px}
.kp-cs-ghead{
  width:100%;display:flex;align-items:center;gap:6px;
  padding:7px 6px;border:none;background:transparent;cursor:pointer;
  border-radius:8px;color:var(--text);font:inherit;text-align:left;
  transition:background .15s;
}
.kp-cs-ghead:hover{background:var(--border)}
.kp-cs-chev{flex:0 0 auto;font-size:10px;color:var(--muted);transition:transform .2s cubic-bezier(.16,1,.3,1)}
.kp-cs-group[data-open="1"] .kp-cs-chev{transform:rotate(90deg)}
.kp-cs-gname{flex:1;font-weight:600;font-size:12px;letter-spacing:.2px}
.kp-cs-count{font-size:11px;color:var(--muted);white-space:nowrap}
.kp-cs-gbody{display:none;padding:1px 1px 3px}
.kp-cs-group[data-open="1"] .kp-cs-gbody{display:block}
.kp-cs-gbody .kp-cs-opt{padding-left:16px}

/* 补考标记徽标：出现在补考考卷右上角 */
.makeup-badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 11px;border-radius:999px;
  font-size:12px;font-weight:800;letter-spacing:.5px;color:#fff;
  background:linear-gradient(135deg,#f59e0b 0%,#ef4444 100%);
  box-shadow:0 2px 10px rgba(239,68,68,.35);
  vertical-align:middle;white-space:nowrap;
}
.makeup-badge svg{width:13px;height:13px;flex:none}
.makeup-badge-corner{
  position:absolute;top:12px;right:14px;z-index:5;
}
.makeup-pass-badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 11px;border-radius:999px;
  font-size:12px;font-weight:800;letter-spacing:.5px;color:#fff;
  background:linear-gradient(135deg,#10b981 0%,#059669 100%);
  box-shadow:0 2px 10px rgba(16,185,129,.35);
  vertical-align:middle;white-space:nowrap;
}
.makeup-pass-badge svg{width:13px;height:13px;flex:none}

/* 成绩单：首考 / 补考 / 最终 三分对照 */
.attempt-pair{
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;
  margin:18px 0 10px;
}
.attempt-cell{
  flex:1 1 0;min-width:120px;max-width:200px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  border-radius:16px;padding:14px 10px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:4px;
  transition:transform .25s cubic-bezier(.16,1,.3,1),box-shadow .25s,border-color .25s;
}
.attempt-cell:hover{transform:translateY(-2px)}
.attempt-label{font-size:12px;font-weight:700;letter-spacing:.5px;color:var(--muted)}
.attempt-value{font-size:30px;font-weight:800;line-height:1.1;color:var(--text)}
.attempt-cell-result{background:rgba(255,255,255,.05)}
.attempt-cell-result .attempt-value{color:var(--primary)}
.attempt-note{font-size:12px;font-weight:700}
.attempt-note:empty{display:none}
.attempt-cell.is-final{
  border-color:transparent;
  background:linear-gradient(135deg,rgba(16,185,129,.16) 0%,rgba(5,150,105,.10) 100%);
  box-shadow:0 6px 22px rgba(16,185,129,.28);
  position:relative;
}
.attempt-cell.is-final::after{
  content:"最终";position:absolute;top:-9px;left:50%;transform:translateX(-50%);
  background:linear-gradient(135deg,#10b981 0%,#059669 100%);color:#fff;
  font-size:10px;font-weight:800;letter-spacing:.5px;padding:2px 9px;border-radius:999px;
  box-shadow:0 2px 8px rgba(16,185,129,.4);
}
.attempt-tip{
  margin:0 auto 4px;max-width:560px;text-align:center;
  font-size:13px;font-weight:600;color:var(--muted);
  background:rgba(255,255,255,.03);border:1px dashed var(--border);
  border-radius:10px;padding:8px 12px;
}
/* 小屏堆叠 */
@media (max-width:560px){
  .attempt-pair{gap:8px}
  .attempt-cell{min-width:0;max-width:none;padding:10px 6px}
  .attempt-value{font-size:24px}
}

/* 通知中心：行布局 + 删除按钮 */
.notif-row{display:flex;align-items:stretch;border-bottom:1px solid var(--border);overflow:hidden}
.notif-row:last-child{border-bottom:none}
.notif-main{display:flex;gap:12px;flex:1;min-width:0;padding:14px 16px;text-decoration:none;color:inherit;align-items:center}
.notif-main:hover{background:rgba(99,102,241,0.04)}
.notif-del{display:flex;align-items:center;justify-content:center;flex:none;padding:0 16px;color:var(--muted);text-decoration:none;border-left:1px solid var(--border)}
.notif-del:hover{color:#ef4444;background:rgba(239,68,68,0.08)}
.notif-del.disabled{color:var(--border);background:transparent;cursor:not-allowed;opacity:.55}
.notif-del.disabled:hover{color:var(--border);background:transparent}