:root{
  --bg:#eef1f8; --card:#ffffff; --primary:#4f46e5; --primary-d:#4338ca;
  /* --muted 原 #6b7280 在 --bg/#eef1f8(4.28) 与 --soft/#f3f4f6(4.39) 上低于 4.5:1，
     压深到 #606a78：白底 5.48、页面底 4.85、软底 4.98、#fafafa 5.25，全部达 AA。
     注意 --gray(#9ca3af) 保持原值 —— 它用作 .st-UNSIGNED 徽章底色，浅灰是有意为之。 */
  --text:#1f2937; --muted:#606a78; --border:#e5e7eb; --soft:#f3f4f6;
  --green:#16a34a; --orange:#ea580c; --blue:#2563eb; --purple:#7c3aed;
  --red:#dc2626; --brown:#92400e; --gray:#9ca3af;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px}
a{color:var(--primary);text-decoration:none}
button{font-family:inherit;cursor:pointer}
.btn{background:var(--primary);color:#fff;border:none;padding:8px 16px;border-radius:8px;font-size:14px;transition:.15s}
.btn:hover{background:var(--primary-d)}
.btn.secondary{background:#fff;color:var(--text);border:1px solid var(--border)}
/* 课件操作按钮：不同操作不同底色，便于一眼区分 */
/* 注：注释里的数值是「白字对比度」。.btn.sm 字号 13px 属正常文本，
      所有底色均已压到 ≥4.5:1（WCAG AA）。改色时请同步复核对比度，别只看颜色好不好看。 */
.btn.play{background:var(--blue)}          /* 播放 蓝      5.17:1 */
.btn.play:hover{background:#1d4ed8}
.btn.prep{background:#0c847a}              /* 备课 青      4.57:1 */
.btn.prep:hover{background:#0f766e}
.btn.dl{background:var(--purple)}          /* 下载 紫      5.70:1 */
.btn.dl:hover{background:#6d28d9}
.btn.conv{background:#07809e}              /* 转PDF 天蓝   4.57:1 */
.btn.conv:hover{background:#0e7490}
.btn.hw{background:#cb4c0a}                /* 作业 橙      4.59:1 */
.btn.hw:hover{background:#c2410c}
.btn.send{background:#be185d}              /* 发送作业 玫红 6.07:1 */
.btn.send:hover{background:#9d174d}

/* 发送作业弹窗：发送班级下拉（亮色加粗醒目）+「确认班级」两态按钮 */
.hw-cls-row{display:flex;align-items:center;gap:10px}
.hw-cls-row select.hw-cls-select{
  flex:1 1 auto;min-width:0;
  font-size:17px;font-weight:800;letter-spacing:.5px;
  color:#c2410c;                       /* 亮橙红，醒目防选错 */
  background:#fff7ed;
  border:2px solid #fb923c;border-radius:8px;
  padding:9px 12px;cursor:pointer;
}
.hw-cls-row select.hw-cls-select:focus{outline:none;border-color:#ea580c;box-shadow:0 0 0 3px rgba(234,88,12,.25)}
.hw-cls-row select.hw-cls-select option{font-weight:700;color:#c2410c;background:#fff7ed}
.hw-cls-confirm{flex:0 0 auto;font-size:15px;font-weight:700;padding:10px 16px;border-radius:8px;color:#fff;cursor:pointer;transition:background .15s,box-shadow .15s}
.hw-cls-confirm.is-red{background:#dc2626;box-shadow:0 1px 4px rgba(220,38,38,.45)}
.hw-cls-confirm.is-red:hover{background:#b91c1c}
.hw-cls-confirm.is-green{background:#16a34a;cursor:not-allowed;opacity:.92;box-shadow:none}
.btn.edit{background:var(--primary)}       /* 编辑 靛蓝    6.29:1 */
.btn.edit:hover{background:var(--primary-d)}
.btn.perm{background:#475569}              /* 授权/设班长 石板灰 7.58:1 */
.btn.perm:hover{background:#334155}
.btn.ok{background:#12873d}                /* 确认/发放 绿 4.61:1 */
.btn.ok:hover{background:#15803d}
.btn.warn{background:#cb4c0a}              /* 禁用/驳回 橙 4.59:1 */
.btn.warn:hover{background:#c2410c}
.btn.nav{background:var(--blue)}           /* 查看/跳转/点名 蓝 5.17:1 */
.btn.nav:hover{background:#1d4ed8}
.btn.danger{background:var(--red)}         /* 删除 红      4.83:1 */
.btn.danger:hover{background:#b91c1c}
.btn.sm{padding:4px 10px;font-size:13px;border-radius:6px}
.btn.xs{padding:3px 9px;font-size:12px;border-radius:6px;background:var(--accent-soft,#eef2ff);color:var(--accent,#4338ca);border:1px solid var(--accent-border,#c7d2fe)}
.btn:disabled{opacity:.5;cursor:not-allowed}
input,select,textarea{font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--border);border-radius:8px;outline:none;background:#fff;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.15)}
label{font-size:13px;color:var(--muted);display:block;margin:8px 0 4px}

/* 顶栏 */
.topbar{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 1px 0 var(--border),0 2px 12px rgba(15,23,42,.05);padding:12px 22px;position:sticky;top:0;z-index:10}
.topbar .brand{font-weight:800;font-size:16px;display:flex;align-items:center;gap:9px;letter-spacing:.2px}
.topbar .brand::before{content:'';flex:0 0 auto;width:11px;height:11px;border-radius:4px;background:linear-gradient(135deg,var(--primary),var(--purple));box-shadow:0 0 0 4px rgba(79,70,229,.13)}
.topbar .who{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:10px}
.topbar .who #who{white-space:nowrap}
/* 顶栏「个人中心」入口 */
.top-link{display:inline-flex;align-items:center;gap:4px;padding:5px 12px;border-radius:8px;background:#eef2ff;color:var(--primary);font-weight:600;font-size:13px;white-space:nowrap;transition:.15s}
.top-link:hover{background:#e0e7ff}
/* 顶栏日期（个人中心左侧，四端通用） */
.topbar .top-date{font-size:21px;font-weight:800;color:var(--primary);white-space:nowrap;letter-spacing:.5px;font-variant-numeric:tabular-nums;text-shadow:0 1px 0 rgba(255,255,255,.6)}
@media (max-width:760px){.topbar .top-date{font-size:15px}}
.container{max-width:1200px;margin:18px auto;padding:0 18px}

/* 标签页：分段式导航（浅灰轨道 + 主色浅底活动胶囊） */
.tabs{display:inline-flex;gap:4px;margin:4px 0 18px;padding:4px;background:#e3e7f1;border:1px solid #d8dde9;border-radius:12px;max-width:100%;overflow-x:auto;scrollbar-width:none;box-shadow:inset 0 1px 2px rgba(15,23,42,.04)}
.tabs::-webkit-scrollbar{display:none}
.tab{padding:7px 16px;border-radius:9px;background:transparent;border:none;color:var(--muted);cursor:pointer;font-size:14px;font-weight:500;white-space:nowrap;transition:color .15s,background .15s,box-shadow .15s}
.tab:hover{color:var(--text);background:rgba(255,255,255,.65)}
.tab.on{background:#eef2ff;color:var(--primary);font-weight:600;box-shadow:inset 0 0 0 1px rgba(79,70,229,.22),0 1px 3px rgba(15,23,42,.10)}
.tab.on:hover{background:#e6ecff}
.panel{display:none}
.panel.on{display:block}
/* ============ 左侧纵向菜单布局（四端通用） ============ */
/* 全幅布局：侧边栏贴页面最左、主区占满剩余全部空间（同知识手册 manual-wrap 风格） */
.container.side-layout{max-width:none;width:100%;margin:0;padding:0;display:flex;gap:0;align-items:stretch}
.sidenav{flex:0 0 269px;position:sticky;top:54px;height:calc(100vh - 54px);background:var(--card,#fff);border-right:1px solid var(--border,#e5e7eb);overflow-y:auto}
.sidenav .tabs{display:flex;flex-direction:column;width:100%;margin:0;padding:8px;overflow:visible;background:transparent;border:none;box-shadow:none;border-radius:0}
.sidenav .tab{padding:13px 16px;text-align:left;font-size:16px}
.sidenav .side-manual{display:block;margin-top:6px;padding:13px 16px;border-radius:10px;text-align:left;font-size:16px;font-weight:500;color:var(--muted);text-decoration:none;transition:color .15s,background .15s}
.sidenav .side-manual:hover{background:#eef2ff;color:var(--primary)}
.sidenav .side-manual.on{background:linear-gradient(135deg,var(--primary),#6366f1);color:#fff}
.sidenav .side-manual-sub{padding:2px 0 8px;border-bottom:1px solid var(--border,#e5e7eb);margin-bottom:6px}
/* 手册目录（分类/文档）：小字号 + 单行省略，四端统一 */
.sidenav .side-manual-sub .mtree-cat{position:relative;display:flex;align-items:center;gap:4px;padding:8px 12px 8px 16px;font-size:14px;font-weight:700;color:#1a1a1a}
.sidenav .side-manual-sub .mtree-caret{position:static;flex:0 0 auto;font-size:11px;color:#9ca3af;width:13px;text-align:center}
.sidenav .side-manual-sub .mtree-name{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidenav .side-manual-sub .mtree-count{margin-left:0;flex:0 0 auto;font-size:11px;font-weight:600;color:#9ca3af;background:#f3f4f6;border-radius:999px;padding:1px 7px}
.sidenav .side-manual-sub .mtree-list{padding-left:0;margin:0}
.sidenav .side-manual-sub .mtree-item{position:relative;padding:8px 12px 8px 24px;font-size:12px;font-weight:500;color:#374151;border-radius:8px;margin:1px 8px;line-height:1.35;transition:.12s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidenav .side-manual-sub .mtree-item:hover{background:#eef2ff;color:var(--primary)}
.sidenav .side-manual-sub .mtree-item.on{background:linear-gradient(135deg,#eef2ff,#e0e7ff);color:var(--primary);font-weight:700;box-shadow:inset 0 0 0 1.5px rgba(79,70,229,.35)}
.manual-sub-loading{padding:12px 10px;color:#9ca3af;font-size:14px}
/* 「🔍 搜索」按钮：知识手册一级菜单行右侧（行内 chip，点击弹搜索框） */
.sidenav .side-manual.manual-searchable{display:flex;align-items:center}
.sidenav .side-manual .manual-search-chip{margin-left:auto;flex:0 0 auto;display:inline-flex;align-items:center;gap:3px;font-size:11.5px;font-weight:600;line-height:1;color:#6b7280;background:#f3f4f6;border:1px solid #e5e7eb;border-radius:999px;padding:4px 9px;cursor:pointer;font-family:inherit;transition:.15s}
.sidenav .side-manual:hover .manual-search-chip{background:#fff;color:var(--primary);border-color:#c7d2fe}
.sidenav .side-manual.on .manual-search-chip{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.5)}
.sidenav .side-manual.on:hover .manual-search-chip{background:rgba(255,255,255,.28)}
/* 手册搜索弹窗 */
.manual-search-mask{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:9998;align-items:flex-start;justify-content:center;padding:12vh 16px 0}
.manual-search-box{width:min(560px,94vw);background:#fff;border-radius:14px;box-shadow:0 24px 60px rgba(15,23,42,.28);overflow:hidden}
.manual-search-input-row{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid #e5e7eb}
.manual-search-icon{font-size:15px}
.manual-search-input{flex:1 1 auto;min-width:0;border:none;outline:none;font-size:15.5px;color:#1f2937;background:transparent}
.manual-search-input::placeholder{color:#9ca3af}
.manual-search-close{flex:0 0 auto;border:none;background:#f3f4f6;color:#6b7280;width:26px;height:26px;border-radius:50%;cursor:pointer;font-size:12px;line-height:1}
.manual-search-close:hover{background:#e5e7eb;color:#111827}
.manual-search-results{max-height:52vh;overflow:auto;padding:8px}
.manual-search-empty{padding:26px 12px;text-align:center;color:#9ca3af;font-size:13px}
.manual-search-item{display:flex;align-items:center;gap:9px;padding:10px 12px;border-radius:9px;cursor:pointer;font-size:14px;color:#1f2937;transition:.12s}
.manual-search-item:hover{background:#eef2ff;color:var(--primary,#4f46e5)}
.manual-search-item .ms-icon{flex:0 0 auto;font-size:14px}
.manual-search-item .ms-col{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:3px}
.manual-search-item .ms-row{display:flex;align-items:center;gap:8px;min-width:0}
.manual-search-item .ms-title{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.manual-search-item .ms-cat{flex:0 0 auto;max-width:45%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11.5px;font-weight:600;color:#6b7280;background:#f3f4f6;border-radius:999px;padding:3px 9px}
.manual-search-item .ms-snippet{font-size:12px;line-height:1.5;color:#6b7280;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;word-break:break-all}
.manual-search-item.has-snippet{align-items:flex-start}
.manual-search-item.has-snippet .ms-icon{margin-top:2px}
/* 搜索正文命中跳转后的关键字高亮 */
.md-body mark.ms-hit,#manual-inline-doc mark.ms-hit{background:#fef08a;color:#92400e;border-radius:3px;padding:0 2px}
/* 文档问题反馈：轻量弹窗（教师/学生/管理端通用，不依赖各端 #modal） */
.manual-fb-mask{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:9998;align-items:center;justify-content:center}
.manual-fb-box{background:#fff;border-radius:14px;padding:22px 24px;width:min(520px,92vw);box-shadow:0 18px 50px rgba(15,23,42,.28)}
.manual-fb-box h3{margin:0 0 6px;font-size:16px;color:#1a1a1a}
.manual-fb-box .manual-fb-doc{margin:0 0 10px;font-size:13px;color:#6b7280;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.manual-fb-box textarea{width:100%;min-height:110px;resize:vertical;box-sizing:border-box}
.manual-fb-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}
/* 反馈状态徽章（管理端「知识反馈处理」） */
.fb-badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.fb-pending{background:#fef3c7;color:#92400e}
.fb-processing{background:#dbeafe;color:#1d4ed8}
.fb-done{background:#d1fae5;color:#047857}
/* 内嵌手册主区视图：占满 main-col */
.manual-inline-panel{display:none;min-height:calc(100vh - 54px)}
.manual-inline-panel.on{display:block}
.manual-inline-panel .doc-shell{min-height:calc(100vh - 56px);max-width:none;width:100%}
.manual-inline-panel .doc-shell .manual-toc{top:56px} /* 内嵌版页面整体滚动，避开 sticky 顶栏 */
.sidenav .tab:hover{background:#eef2ff;color:var(--primary)}
.sidenav .tab:not(.sub-tab).on{background:linear-gradient(135deg,var(--primary),#6366f1);color:#fff;box-shadow:0 4px 12px rgba(79,70,229,.3)}
.sidenav .tab:not(.sub-tab).on:hover{background:var(--primary)}
/* 一级菜单的二级子菜单（学生管理等） */
.sidenav .tab .sub-arrow{float:right;font-style:normal;font-size:15px;opacity:.75;transition:transform .2s}
.sidenav .tab.has-sub.on .sub-arrow{transform:rotate(180deg)}
.tab-sub{display:none;flex-direction:column;padding:2px 0 8px}
.tab-sub.open{display:flex}
.tab-sub .sub-tab{position:relative;padding:13px 14px 13px 38px;font-size:16px;font-weight:500;color:#374151;border-radius:10px;margin:2px 10px}
.tab-sub .sub-tab::before{content:'';position:absolute;left:19px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:#c7d2fe;transition:background .15s,box-shadow .15s}
.tab-sub .sub-tab:hover{background:#eef2ff;color:var(--primary)}
.tab-sub .sub-tab:hover::before{background:var(--primary)}
.tab-sub .sub-tab.on{background:linear-gradient(135deg,#eef2ff,#e0e7ff);color:var(--primary);font-weight:700;box-shadow:inset 0 0 0 1.5px rgba(79,70,229,.35)}
.tab-sub .sub-tab.on::before{background:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.18)}
.main-col{flex:1;min-width:0;padding:18px 22px 40px}
@media (max-width:900px){
  .container.side-layout{flex-direction:column;gap:10px;padding:0 12px}
  .sidenav{position:static;flex:none;width:100%;height:auto;border-right:none;background:transparent;border-radius:12px;border:1px solid var(--border,#e5e7eb)}
  .sidenav .tabs{flex-direction:row;overflow-x:auto;scrollbar-width:none}
  .sidenav .tabs::-webkit-scrollbar{display:none}
  .sidenav .tab{white-space:nowrap;padding:7px 14px;font-size:14px}
  .sidenav .side-manual{white-space:nowrap;padding:7px 14px;font-size:14px;margin-top:0}
  .sidenav .tab.on{background:#eef2ff;color:var(--primary);box-shadow:inset 0 0 0 1px rgba(79,70,229,.22),0 1px 3px rgba(15,23,42,.10)}
  .tab-sub{flex-direction:row;padding:2px 6px}
  .tab-sub .sub-tab{white-space:nowrap;padding:9px 14px;font-size:15px;margin:0}
  .tab-sub .sub-tab::before{display:none}
  .main-col{padding:0 0 24px}
}

/* 卡片/区块 */
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:16px}
.card h3{margin:0 0 12px;font-size:15px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.row>*{flex:1;min-width:160px}
.actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}

/* 表格 */
table{width:100%;border-collapse:collapse;font-size:13px;background:#fff;border-radius:10px;overflow:hidden}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}
th{background:var(--soft);color:var(--muted);font-weight:600}
tr:hover td{background:#fafbff}

/* 状态徽章 */
.badge{display:inline-block;padding:2px 10px;border-radius:12px;font-size:12px;font-weight:600;color:#fff}
/* 徽章同为白字 12px，属正常文本，底色按 4.5:1 压暗（同 .btn 的取值，语义色一致）；
   .st-UNSIGNED 有意保留浅灰的「中性/未激活」观感，不适用该门槛。改色请复核对比度。 */
.st-PRESENT{background:#12873d} /* 出勤 4.61:1 */ .st-LATE{background:#cb4c0a} /* 迟到 4.59:1 */
.st-LEAVE{background:var(--blue)} .st-EARLY{background:var(--purple)}
.st-ABSENT{background:var(--red)} .st-CHEAT{background:var(--brown)}
.st-UNSIGNED{background:var(--gray)}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;vertical-align:middle}

/* 学生卡片（看板） */
.board{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
/* 积分商城卡片稍宽：保证「申请兑换」按钮与「积分/库存」信息同一行 */
#mall.board{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
/* 教师端商城：固定每行 6 个商品，避免 7 列时文字/按钮被挤出去 */
#t-mall.board{grid-template-columns:repeat(6,1fr)}
@media (max-width:1280px){#t-mall.board{grid-template-columns:repeat(4,1fr)}}
@media (max-width:900px){#t-mall.board{grid-template-columns:repeat(3,1fr)}}
.scard{border:2px solid var(--border);border-radius:12px;padding:14px;background:#fff;cursor:pointer;transition:.12s;position:relative}
.scard:hover{border-color:var(--primary)}
.scard.s-PRESENT{border-color:var(--green);background:#f0fdf4}
.scard.s-LATE{border-color:var(--orange);background:#fff7ed}
.scard.s-LEAVE{border-color:var(--blue);background:#eff6ff}
.scard.s-EARLY{border-color:var(--purple);background:#f5f3ff}
.scard.s-ABSENT{border-color:var(--red);background:#fef2f2}
.scard.s-CHEAT{border-color:var(--brown);background:#fef7ed}
.scard.s-UNSIGNED{border-color:var(--gray);background:#fafafa}
.scard .nm{font-size:16px;font-weight:700}
/* 学生端商城卡片：商品图（与管理端 p-card-img 同款裁剪） */
.scard .mall-img{height:110px;margin:-14px -14px 10px;border-radius:10px 10px 0 0;overflow:hidden;background:#f3f4f6;display:flex;align-items:center;justify-content:center}
.scard .mall-img img{width:100%;height:100%;object-fit:cover}
.scard .no{color:var(--muted);font-size:12px;margin-top:2px}
/* 卡片右上角三组积分：已有分(蓝) / 课勤分(绿) / 奖惩分(+橙 −红 0灰)，全部加粗 */
.scard .pts3{position:absolute;top:8px;right:10px;text-align:right;font-size:11px;line-height:1.5;font-weight:700}
.scard .pts3 .pt-have{color:#2563eb}
.scard .pts3 .pt-att{color:#059669}
.scard .pts3 .pt-adj.pos{color:#d97706}
.scard .pts3 .pt-adj.neg{color:#dc2626}
.scard .pts3 .pt-adj.zero{color:#9ca3af}
.scard .sb{margin-top:8px}
.scard .ptbtn{position:absolute;bottom:8px;right:8px;display:flex;gap:8px}
.ptbtn button{width:36px;height:36px;border-radius:10px;border:2px solid currentColor;background:#fff;font-size:24px;font-weight:800;line-height:1;cursor:pointer}
.ptbtn button.minus{color:#dc2626} .ptbtn button.plus{color:#2563eb}

/* 大口令 */
.token-box{text-align:center;padding:18px;background:#111827;border-radius:14px;font-size:48px;letter-spacing:4px;font-weight:800;font-family:monospace;white-space:nowrap}
.token-box .tok-label{font-size:34px;color:#ffffff;letter-spacing:2px;font-weight:800}
.token-box .tok-sid{color:#fbbf24}
.token-box .tok-code{color:#22c55e;letter-spacing:8px}
.token-box .tok-sep{color:#9ca3af;font-weight:400;margin:0 12px}
.token-meta{text-align:center;color:var(--muted);margin-top:6px}

/* 登录 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:30px;width:360px;box-shadow:0 10px 40px rgba(0,0,0,.08)}
.login-card h2{margin:0 0 4px}
.login-card .sub{color:var(--muted);font-size:13px;margin-bottom:18px}
.msg{color:var(--red);font-size:13px;min-height:18px;margin-top:8px}

/* ---------- 学生端签到卡（美化版） ---------- */
.sign-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:26px 26px 18px;box-shadow:0 12px 40px rgba(15,23,42,.08);position:relative;overflow:hidden}
.sign-card::before{content:'';position:absolute;top:0;left:0;right:0;height:6px;background:linear-gradient(90deg,var(--primary),var(--purple),#06b6d4)}
.sign-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.sign-icon{flex:0 0 auto;width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,#eef2ff,#e0e7ff);display:flex;align-items:center;justify-content:center;font-size:28px;box-shadow:inset 0 0 0 1px rgba(79,70,229,.15)}
.sign-sub{font-size:14px;color:var(--muted)}
.sign-field{display:flex;gap:12px;align-items:center;background:var(--soft);border:1px solid var(--border);border-radius:14px;padding:12px 14px;margin-bottom:12px;transition:.15s}
.sign-field:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.sign-field-ico{flex:0 0 auto;font-size:24px}
.sign-field-body{flex:1}
.sign-field-body label{margin:0 0 4px;font-weight:600}
.sign-field input{background:#fff;font-size:16px;font-weight:600;padding:9px 12px;letter-spacing:1px}
/* 占位提示文字调淡（避免看起来像已输入） */
.sign-field input::placeholder{color:#c3cad4;font-weight:400;opacity:1}
.sign-btn{display:block;width:-moz-fit-content;width:fit-content;margin:16px auto 0;padding:11px 42px;font-size:15px;font-weight:700;border-radius:999px;background:linear-gradient(135deg,var(--primary),#6366f1);box-shadow:0 6px 16px rgba(79,70,229,.3);transition:.15s}
.sign-btn:hover{background:linear-gradient(135deg,var(--primary-d),#4f46e5);transform:translateY(-1px);box-shadow:0 8px 20px rgba(79,70,229,.35)}
.sign-btn:active{transform:translateY(0)}
.sign-msg{text-align:center;font-size:14px;font-weight:600;min-height:0}
.sign-msg:empty{margin:0}
.sign-msg.ok{color:var(--green);background:#ecfdf5;border:1px solid #a7f3d0;border-radius:10px;padding:9px 10px;margin-top:12px}
.sign-msg.err{color:var(--red);background:#fef2f2;border:1px solid #fecaca;border-radius:10px;padding:9px 10px;margin-top:12px}
.sign-tip{margin-top:12px;text-align:center;font-size:12px;color:var(--muted)}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;z-index:50}
.modal-mask.on{display:flex}
.modal{background:#fff;border-radius:14px;padding:22px;width:500px;max-width:92vw;max-height:88vh;overflow:auto}
.modal h3{margin:0 0 12px}
.muted{color:var(--muted)}
.pill{display:inline-block;background:var(--soft);border-radius:12px;padding:2px 10px;font-size:12px;color:var(--muted);margin:2px}

/* 上传弹窗：拖拽区 + 文件列表 */
.dropzone{border:2px dashed var(--border);border-radius:12px;padding:26px 16px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s;margin-top:4px;background:var(--soft)}
.dropzone:hover,.dropzone.on{border-color:var(--primary);background:#eef2ff;color:var(--primary)}
.ufile{display:flex;gap:8px;align-items:center;margin-top:8px}
.ufile input.u-title{flex:1.2}
.ufile .muted{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ufile button{flex:0 0 auto}

/* 课件拖拽排序 */
tr[draggable]{cursor:grab}
tr.dragging{opacity:.45}
tr.drop-over td{background:#eef2ff !important;box-shadow:inset 0 2px 0 var(--primary)}
.drag-cell{color:var(--muted);font-size:16px;text-align:center;cursor:grab;user-select:none} /* 原 var(--gray) 仅 2.54:1，拖拽把手看不清 */

/* 授权弹窗 */
.perm-grid{display:flex;gap:14px;flex-wrap:wrap}
.perm-grid label{margin:0}
.grant-row{display:flex;align-items:center;gap:8px;justify-content:space-between;border:1px solid var(--border);border-radius:8px;padding:6px 10px;margin-top:6px;font-size:13px;flex-wrap:wrap}
.grant-row span:first-child{flex:1;min-width:200px}
/* 授权列表分页条：居中，条数说明与翻页按钮同一行 */
.grant-pager{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:10px;flex-wrap:wrap}
.grant-pager .muted{font-size:12px}
.mini-select{width:auto;padding:4px 8px;font-size:12px;border-radius:6px}
/* 列表分页工具栏（每页条数选择）：浮于表格上方右侧 */
.pg-toolbar{display:flex;align-items:center;justify-content:flex-end;gap:6px;margin:8px 0 6px;font-size:14px;color:var(--muted,#6b7280)}
.pg-toolbar label{margin:0 2px 0 0;white-space:nowrap;flex:none;font-size:14px;color:inherit}
.pg-toolbar .pg-size{width:auto;flex:none;padding:4px 8px;font-size:14px;border-radius:6px;border:1px solid var(--border,#e5e7eb);background:#fff}
.pg-toolbar .pg-custom{flex:none}
.pg-toolbar .pg-custom input{width:72px;padding:4px 8px;font-size:14px;border-radius:6px;border:1px solid var(--border,#e5e7eb)}
/* ---------- 列表通用搜索栏 + 表头点击排序（table-tools.js） ---------- */
.tt-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 0 2px}
.tt-bar .tt-label{font-size:14px;color:var(--muted,#6b7280);white-space:nowrap}
.tt-bar .tt-row{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.tt-bar .tt-q{width:220px;flex:0 0 220px;padding:8px 12px;font-size:14px;border:1px solid var(--border,#e5e7eb);border-radius:8px;background:#fff}
.tt-bar .tt-q:focus{outline:none;border-color:var(--primary,#4f46e5);box-shadow:0 0 0 2px rgba(79,70,229,.15)}
table th.tt-sortable{cursor:pointer;user-select:none;white-space:nowrap}
table th.tt-sortable:hover{color:var(--primary,#4f46e5)}
table th.tt-sorted{color:var(--primary,#4f46e5)}
table th .tt-arrow{font-size:10px;margin-left:3px}

/* 独立手写的分页条数下拉（积分列表/宠物学生总览等）：标签与下拉同行、下拉自适应宽度 */
.pg-size-wrap{display:flex;align-items:center;gap:6px}
.pg-size-wrap label{margin:0;white-space:nowrap;font-size:12px;color:var(--muted,#6b7280)}
.pg-size-wrap select{width:auto}

/* 课表日期：两行显示、字号缩小约1/3 */
.sc-date{font-size:inherit;line-height:1.35;display:inline-block;white-space:nowrap;text-align:left}

/* ---------- 帮学生兑换：圆圈单选学生列表 ---------- */
.rf-stu-list{max-height:240px;overflow:auto;border:1px solid #e5e7eb;border-radius:10px;background:#fff}
.rf-stu-item{display:flex;align-items:center;gap:10px;padding:8px 12px;cursor:pointer;border-bottom:1px solid #f3f4f6;transition:background .12s}
.rf-stu-item:last-child{border-bottom:none}
.rf-stu-item:hover{background:#f5f3ff}
.rf-stu-item.active{background:#eef2ff}
.rf-radio{flex:none;width:20px;height:20px;border-radius:50%;border:2px solid #c7cbd4;background:#fff;display:inline-flex;align-items:center;justify-content:center;transition:border-color .15s,box-shadow .15s;box-sizing:border-box}
.rf-radio i{width:10px;height:10px;border-radius:50%;background:transparent;transform:scale(.4);transition:transform .15s,background .15s}
.rf-stu-item:hover .rf-radio{border-color:#818cf8}
.rf-stu-item.active .rf-radio{border-color:#4f46e5;box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.rf-stu-item.active .rf-radio i{background:#4f46e5;transform:scale(1)}
.rf-stu-no{font-size:13px;color:#6b7280;font-variant-numeric:tabular-nums;white-space:nowrap}
.rf-stu-name{font-size:14px;font-weight:600;color:#111827;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rf-stu-pts{font-size:12px;font-weight:700;color:#d97706;white-space:nowrap}
.rf-stu-empty{padding:14px;text-align:center;font-size:13px}

/* ---------- 右下角消息队列提示（toast，自动消失免点击） ---------- */
.toast-wrap{position:fixed;right:22px;bottom:22px;z-index:120;display:flex;flex-direction:column;gap:10px;align-items:flex-end;pointer-events:none}
.toast{max-width:380px;background:#111827;color:#fff;padding:12px 16px;border-radius:10px;font-size:14px;line-height:1.5;box-shadow:0 10px 28px rgba(0,0,0,.28);opacity:0;transform:translateY(10px);transition:opacity .25s,transform .25s}
.toast.on{opacity:1;transform:translateY(0)}
.toast.ok{border-left:4px solid #10b981}
.toast.err{border-left:4px solid #ef4444}

/* 大弹窗（上传/授权） */
.modal.wide{width:560px}

/* ---------- 作业弹窗：富文本编辑器 / 只读富文本 / 宽弹窗 ---------- */
.modal.xwide{width:820px}
/* 文档预览大弹窗：宽度为 xwide 的 1.5 倍，高度几乎占满整个浏览器视口 */
.modal.pfull{width:1230px;max-width:96vw;height:94vh;max-height:94vh;display:flex;flex-direction:column;overflow:hidden;padding:18px 22px}
.modal.pfull h3{flex:0 0 auto}
.modal.pfull .full-scroll{flex:1 1 auto;min-height:0;overflow:auto}
.modal.pfull .actions{flex:0 0 auto}
/* 全屏编辑弹窗（文档双栏编辑：左 Markdown 右预览）——几乎占满整个浏览器视口 */
.modal.full{width:96vw;max-width:96vw;height:94vh;max-height:94vh;display:flex;flex-direction:column;overflow:hidden;padding:18px 22px}
.modal.full h3{flex:0 0 auto}
.modal.full .full-scroll{flex:1 1 auto;min-height:0;overflow:auto}
.modal.full .actions{flex:0 0 auto}
.hw-meta{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:10px;font-size:14px}
.hw-meta .ro-item{background:#f3f4f6;border-radius:8px;padding:6px 12px}
.hw-meta .ro-item b{font-weight:600;color:var(--muted);margin-right:6px;font-size:12px} /* 原硬编码 #6b7280，在 #f3f4f6 上仅 4.39:1 */

.rt-bar{display:flex;gap:4px;align-items:center;border:1px solid #e5e7eb;border-bottom:none;border-radius:8px 8px 0 0;background:#f9fafb;padding:5px 8px}
.rt-bar button{min-width:30px;height:28px;border:1px solid transparent;background:transparent;border-radius:6px;cursor:pointer;font-size:14px;line-height:1;color:#111827}
.rt-bar button:hover{background:#e5e7eb}
.rt-bar input[type=color]{width:30px;height:28px;border:none;background:transparent;cursor:pointer;padding:0}
.rt-area{min-height:130px;max-height:320px;overflow:auto;border:1px solid #e5e7eb;border-radius:0 0 8px 8px;padding:10px 12px;background:#fff;
  font-size:15px;line-height:1.7;outline:none;white-space:pre-wrap}
.rt-area:focus{border-color:#6366f1}
.rt-area img{max-width:100%}
.rt-area ul,.rt-area ol{padding-left:1.6em}
.rt-ro{border:1px solid #e5e7eb;border-radius:8px;padding:10px 12px;background:#fafafa;font-size:15px;line-height:1.7;min-height:44px;white-space:pre-wrap}
.rt-ro img{max-width:100%}
.rt-ro ul,.rt-ro ol{padding-left:1.6em}
.rt-ro:empty::after{content:'（未配置）';color:var(--muted)} /* 原 #9ca3af 在 #fafafa 上仅 2.43:1 */

/* ---------- 学生端「待完成 / 已完成 作业」（教师发送，按班级关联） ---------- */
/* 待完成作业：上方名称按钮区（自动换行），下方一次只显示一个作业详情，点击按钮切换 */
.hw-tabbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.hw-tab-btn{padding:6px 14px;border-radius:8px;border:1px solid var(--border);background:#fff;color:inherit;
  font-size:13px;line-height:1.5;cursor:pointer;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hw-tab-btn:hover{border-color:var(--primary)}
.hw-tab-btn.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.hw-tab-btn.done{opacity:.72}
.hw-post{border:1px solid var(--border);border-radius:10px;padding:12px 14px;background:#fff;display:flex;flex-direction:column}
.hw-post-head{display:flex;gap:8px;flex-wrap:wrap;align-items:baseline;margin-bottom:6px;padding-bottom:8px;border-bottom:1px dashed var(--border)}
.hw-course{font-weight:600;font-size:15px}
.hw-title{color:var(--muted);font-size:14px}
.hw-post-body{margin:2px 0}
.hw-post-row{margin:4px 0;line-height:1.7;word-break:break-word}
.hw-post-row > b{flex-shrink:0}
.hw-rich{display:inline}
.hw-rich img{max-width:100%}
.hw-rich p{margin:2px 0}
.hw-post-foot{margin-top:8px;font-size:12px;color:var(--muted)}
.hw-post-ops{margin-top:10px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.hw-cd{font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums}
.hw-cd.hw-over{color:var(--red)}
.hw-done{color:#12873d;font-weight:600}

/* 作业列表分页条：居中，页码与说明同一行（与授权弹窗 .grant-pager 观感一致） */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:12px;flex-wrap:wrap}
.pager .muted{font-size:12px}
/* 已完成作业表：末列（操作/详情）居中且不换行 */
#s-hw-done-table th:last-child,#s-hw-done-table td:last-child{text-align:center;white-space:nowrap}

/* ---------- 弹窗元信息竖排变体（vstack）：课程/课件名称各占一行 ---------- */
.hw-meta.vstack{display:block}
.hw-meta.vstack .ro-item{display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,#f8fafc,#eef2f7);border:1px solid var(--border);border-radius:10px;padding:9px 14px;margin-bottom:8px;font-size:14px;box-shadow:0 1px 2px rgba(31,41,55,.04)}
.hw-meta.vstack .ro-item:last-child{margin-bottom:0}
.hw-meta.vstack .ro-item b{flex:0 0 auto;font-weight:600;font-size:12px;color:var(--muted);letter-spacing:.5px}
.hw-meta.vstack .ro-item .ro-val{flex:1;font-weight:600;color:var(--text);word-break:break-all;line-height:1.5}

/* ---------- 课件表：文件信息并入标题单元格（第二行小字） ---------- */
.cw-file-line{font-size:12px;color:var(--muted);margin-top:2px;line-height:1.6;word-break:break-all}
.cw-file-line .badge{margin-left:4px;vertical-align:1px}


/* ---------- 宠物陪伴系统（学生端 / 管理端共用） ---------- */
.badge.normal{background:#6b7280}
.badge.rare{background:#2563eb}
.badge.legend{background:linear-gradient(135deg,#f59e0b,#e11d48)}

/* 领养选择网格 */
.pet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-bottom:6px}
.pet-opt{border:1px solid var(--border);border-radius:12px;padding:12px;text-align:center;cursor:pointer;background:#fff;transition:.15s}
.pet-opt:hover{box-shadow:0 4px 14px rgba(31,41,55,.1)}
.pet-opt.on{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary) inset}
.pet-emoji{font-size:34px;line-height:1.2}
.pet-name{font-weight:600;margin:4px 0}
.pet-cost{font-size:12px;color:var(--primary);margin-top:6px;font-weight:600}

/* 宠物饲养卡片 */
.pet-card{border:1px solid var(--border);border-radius:14px;padding:18px;text-align:center;background:linear-gradient(135deg,#f8fafc,#eef2f7)}
.pet-big{line-height:1;filter:drop-shadow(0 4px 8px rgba(31,41,55,.15))}
.pet-title{font-size:20px;font-weight:700;margin:6px 0 2px}
.pet-stage{font-size:12px;background:var(--primary);color:#fff;border-radius:10px;padding:1px 8px;vertical-align:2px;font-weight:600}
.pet-bubble{display:inline-block;margin:6px 0 10px;padding:4px 12px;border-radius:12px;font-size:13px}
.pet-bubble.ok{background:#e7f6ec;color:#12873d}
.pet-bubble.warn{background:#fff4e0;color:#b76e00}
.pet-bubble.crit{background:#fdeaea;color:#d63b3b;font-weight:600}

/* 成长值进度条（六期进化） */
.pet-growth{max-width:420px;margin:10px auto 4px;text-align:left;background:#fff;border:1px solid #eef0f3;border-radius:12px;padding:10px 12px}
.pet-growth-head{display:flex;justify-content:space-between;align-items:center;font-size:13px}
.pet-growth-stage{font-weight:700;color:#1f2937}
.pet-growth-val{font-size:12px;color:var(--muted)}
.pet-growth-bar{height:10px;background:#eef0f3;border-radius:6px;overflow:hidden;margin:7px 0 4px}
.pet-growth-fill{height:100%;border-radius:6px;background:linear-gradient(90deg,#60a5fa,#a78bfa,#f472b6);transition:width .4s}
.pet-growth-tip{font-size:12px}

/* 3D 宠物画布 */
#pet3d-box{position:relative;height:250px;max-width:460px;margin:4px auto;border-radius:14px;
  background:radial-gradient(ellipse at 50% 78%,#fef3c7 0%,#e0f2fe 60%,transparent 100%);overflow:hidden}
#pet3d-preview{position:relative;height:210px;max-width:460px;margin:0 auto 10px;border-radius:14px;
  background:radial-gradient(ellipse at 50% 78%,#fef3c7 0%,#e0f2fe 60%,transparent 100%);overflow:hidden}
#pet3d-box canvas,#pet3d-preview canvas{outline:none}

/* 四维属性条 */
.attrs{text-align:left;max-width:420px;margin:8px auto}
.attr{display:flex;align-items:center;gap:8px;margin:6px 0}
.attr-l{width:54px;font-size:13px;color:var(--muted);text-align:right}
.attr-bar{flex:1;height:10px;background:#eef0f3;border-radius:6px;overflow:hidden}
.attr-bar i{display:block;height:100%;border-radius:6px;transition:width .3s}
.attr-v{width:30px;text-align:right;font-size:13px;font-weight:600}
.pet-actions{margin-top:12px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}

/* 顶栏「个人中心」悬停下拉菜单（个人信息 / 修改密码） */
.pf-wrap{position:relative;display:inline-block}
.pf-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:150px;background:#fff;
  border:1px solid #e5e7eb;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.12);
  padding:6px;display:none;z-index:2000;animation:pfDrop .18s ease}
.pf-wrap.open .pf-menu{display:block}
@keyframes pfDrop{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.pf-item{padding:9px 14px;border-radius:8px;font-size:14px;cursor:pointer;white-space:nowrap;color:#374151}
.pf-item:hover{background:#eef2ff;color:var(--primary,#4f6ef7)}
.pf-item.danger{color:#dc2626}
.pf-item.danger:hover{background:#fee2e2;color:#b91c1c}
.pf-menu::before{content:'';position:absolute;top:-5px;right:22px;width:10px;height:10px;
  background:#fff;border-left:1px solid #e5e7eb;border-top:1px solid #e5e7eb;transform:rotate(45deg)}

/* 积分商城：视图切换（列表/卡片）+ 卡片视图 + 图片上传弹窗 */
.view-toggle{display:inline-flex;border:1px solid #e5e7eb;border-radius:10px;overflow:hidden;background:#fff}

/* 开关式切换（系统配置：单点登录等） */
.switch{position:relative;display:inline-block;width:46px;height:26px;flex:0 0 auto}
.switch input{opacity:0;width:0;height:0}
.switch .slider{position:absolute;cursor:pointer;inset:0;background:#cbd5e1;border-radius:999px;transition:.18s}
.switch .slider:before{content:"";position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.18s;box-shadow:0 1px 2px rgba(0,0,0,.2)}
.switch input:checked + .slider{background:#4f46e5}
.switch input:checked + .slider:before{transform:translateX(20px)}
.switch input:focus-visible + .slider{outline:2px solid #4f46e5;outline-offset:2px}
.vt-btn{border:none;background:transparent;padding:7px 16px;font-size:13px;cursor:pointer;color:#6b7280;transition:.15s}
.vt-btn.on{background:var(--primary,#4f6ef7);color:#fff;font-weight:600}
#p-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:14px}
.p-card{background:#fff;border:1px solid #e5e7eb;border-radius:14px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05);transition:transform .15s,box-shadow .15s;display:flex;flex-direction:column}
.p-card[draggable]{cursor:grab}
.p-card.dragging{opacity:.45}
.p-card.drop-over{outline:2px dashed var(--primary,#4f46e5);outline-offset:2px}
.p-card:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,.1)}
.p-card-img{height:150px;background:#f3f4f6;display:flex;align-items:center;justify-content:center;flex:none}
.p-card-img img{width:100%;height:100%;object-fit:cover}
.p-ph{font-size:52px;line-height:1}
.p-ph.big{font-size:64px}
.p-card-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.p-card-name{font-weight:700;font-size:15px;color:#111827;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.p-card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px}
.p-chip{display:inline-block;background:#eef2ff;color:var(--primary,#4f6ef7);border-radius:999px;padding:2px 10px;font-size:12px}
.p-card-desc{font-size:13px;color:#6b7280;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.p-card-nums{display:flex;align-items:baseline;gap:10px;font-size:13px}
.p-price{color:#111827}
.p-cost{color:var(--primary,#4f6ef7)}
.p-stock{color:#059669}
.p-card-btns{margin-top:auto;display:flex;gap:6px;flex-wrap:wrap;padding-top:6px}
.pi-preview{display:flex;align-items:center;justify-content:center;height:180px;background:#f3f4f6;border-radius:10px;margin-bottom:10px;overflow:hidden}
.pi-preview img{max-width:100%;max-height:100%;border-radius:8px}

/* ── 积分规则悬停提示按钮（学生端商城 / 管理端商城 / 教师端点名签到页共用）── */
.pts-rule{position:relative;display:inline-block}
.pts-rule-btn{padding:7px 14px;border-radius:8px;border:1px solid #d97706;background:#fffbeb;color:#92400e;font-size:13px;font-weight:700;cursor:default;white-space:nowrap}
.pts-rule-btn:hover{background:#fef3c7}
.pts-rule-pop{display:none;position:absolute;top:calc(100% + 8px);right:0;z-index:999;width:440px;max-width:82vw;background:#fff;border:1px solid #fcd34d;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.16);padding:12px 14px;text-align:left;cursor:default}
.pts-rule:hover .pts-rule-pop,.pts-rule-pop:hover{display:block}
.pts-rule::after{content:'';position:absolute;top:100%;right:0;width:440px;max-width:82vw;height:10px}
.pts-rule-pop .pr-title{font-size:15px;font-weight:800;color:#92400e;margin-bottom:8px;padding-bottom:6px;border-bottom:2px solid #fde68a}
.pts-rule-pop .pr-item{font-size:13px;line-height:1.8;color:#374151;margin-bottom:2px}
.pts-rule-pop .pr-plus{color:#059669}
.pts-rule-pop .pr-minus{color:#dc2626}
.pts-rule-pop .pr-zero{color:#9ca3af}

/* ============ 知识手册 阅读器 ============ */
.manual-wrap{display:flex;gap:0;min-height:calc(100vh - 56px);background:var(--bg,#f3f4f6)}
.manual-side{width:280px;flex:0 0 280px;background:var(--card,#fff);border-right:1px solid var(--border,#e5e7eb);display:flex;flex-direction:column;max-height:calc(100vh - 56px);position:sticky;top:56px}
.manual-side-head{padding:12px;border-bottom:1px solid var(--border,#e5e7eb)}
.manual-side-head input{width:100%;padding:9px 12px;border:1px solid var(--border,#e5e7eb);border-radius:8px;font-size:13px;outline:none}
.manual-side-head input:focus{border-color:var(--primary,#4f46e5);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.manual-tree{flex:1;overflow:auto;padding:8px 6px 24px}
.mtree-group{margin-bottom:4px}
.mtree-cat{display:flex;align-items:center;gap:6px;padding:7px 10px;font-weight:700;font-size:14px;color:#1a1a1a;cursor:pointer;border-radius:8px;user-select:none}
.mtree-cat:hover{background:#f3f4f6}
.mtree-caret{font-size:11px;color:#9ca3af;width:12px;text-align:center;flex:0 0 auto}
.mtree-name{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mtree-count{margin-left:auto;font-size:11px;font-weight:600;color:#9ca3af;background:#f3f4f6;border-radius:999px;padding:1px 8px}
.mtree-list{margin:2px 0 6px;padding-left:14px}
.mtree-item{padding:6px 10px;font-size:12px;color:#4b5563;border-radius:7px;cursor:pointer;line-height:1.35;transition:.12s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mtree-item:hover{background:#eef2ff;color:#4338ca}
.mtree-item.on{background:var(--primary,#4f46e5);color:#fff;font-weight:600}
.mtree-empty{padding:18px 12px;color:#9ca3af;font-size:13px;text-align:center}
.manual-main{flex:1;overflow:auto;max-height:calc(100vh - 56px);position:relative}
.manual-loading{padding:60px;text-align:center;color:#9ca3af;font-size:15px}
/* 文档 + 本页目录 融合容器（MacDown 风格）：同一大卡片，中间竖线分隔 */
.doc-shell{display:flex;align-items:stretch;max-width:none;width:100%;margin:0 auto;background:var(--card,#fff);box-shadow:0 1px 3px rgba(15,23,42,.06);min-height:100%}
.doc-shell .md-body{flex:1 1 auto;min-width:0;max-width:none;margin:0;background:none;box-shadow:none;padding:28px 44px 90px}
.doc-shell .manual-toc{position:sticky;top:0;align-self:flex-start;flex:0 0 225px;width:225px;background:none;border:0;border-left:1px solid var(--border,#e5e7eb);border-radius:0;box-shadow:none;padding:28px 14px 60px}
.md-body{overflow-wrap:break-word;font-size:16px}
.md-head{margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--border,#e5e7eb)}
.md-body h1{font-size:28px;margin:0 0 4px;font-weight:800}
.md-body h2{font-size:22px;margin:30px 0 12px;padding-top:8px;border-top:1px dashed #eef0f4;font-weight:800;color:#111827}
.md-body h3{font-size:18px;margin:22px 0 10px;font-weight:700;color:#1f2937}
.md-body p{line-height:1.9;margin:10px 0;color:#1f2937}
.md-cat{display:inline-block;font-size:12px;font-weight:700;color:#4f46e5;background:#eef2ff;border-radius:999px;padding:2px 12px;margin-bottom:10px}
.md-body ul,.md-body ol{padding-left:22px;margin:10px 0;line-height:1.9;color:#1f2937}
.md-body li{margin:4px 0}
.md-body strong{color:#111827}
.md-body a{color:#4f46e5;text-decoration:none;border-bottom:1px solid rgba(79,70,229,.3)}
.md-body a:hover{border-bottom-color:#4f46e5}
/* 图片自适应：最大不超过正文宽度（避免大图撑破页面布局），等比缩放；detail 图可用「右键→新标签页打开图片」看原图 */
.md-body img{max-width:100%;height:auto;display:inline-block;border-radius:8px;vertical-align:middle}
.md-body p img{display:block;margin:10px auto;max-width:100%}
/* Docusaurus 迁移文档的 figure/details/admonition 引用块 */
.md-body figure{margin:14px auto;text-align:center}
.md-body figure img{display:block;margin:0 auto}
.md-body figcaption{font-size:13px;color:#6b7280;margin-top:6px}
.md-body details{margin:10px 0;padding:8px 12px;background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px}
.md-body summary{cursor:pointer;font-weight:600;color:#4f46e5}
.md-body sup{font-size:.72em;vertical-align:super;line-height:0}
/* 行内代码：只作用于非代码块内的 code（排除 pre 里的，否则代码块每行都被套上粉字+灰底） */
.md-body :not(pre) > code{background:#f3f4f6;border:1px solid #e5e7eb;border-radius:5px;padding:1px 6px;font-size:.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#1f2937;font-weight:500}
.md-body pre.hljs{background:#0f172a;color:#e2e8f0;border-radius:10px;padding:14px 16px;overflow:auto;font-size:14px;line-height:1.6;margin:14px 0}
.md-body pre.hljs code{display:block;background:none;border:0;padding:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#e2e8f0;font-size:inherit}
/* highlight.js 代码高亮配色（深色底） */
.md-body pre.hljs .hljs-comment,.md-body pre.hljs .hljs-quote{color:#94a3b8;font-style:italic}
.md-body pre.hljs .hljs-keyword,.md-body pre.hljs .hljs-selector-tag,.md-body pre.hljs .hljs-literal,.md-body pre.hljs .hljs-meta{color:#c792ea}
.md-body pre.hljs .hljs-string,.md-body pre.hljs .hljs-regexp,.md-body pre.hljs .hljs-addition{color:#7ee787}
.md-body pre.hljs .hljs-number,.md-body pre.hljs .hljs-symbol,.md-body pre.hljs .hljs-bullet{color:#f78c6c}
.md-body pre.hljs .hljs-title,.md-body pre.hljs .hljs-section,.md-body pre.hljs .hljs-name{color:#82aaff}
.md-body pre.hljs .hljs-attr,.md-body pre.hljs .hljs-attribute,.md-body pre.hljs .hljs-variable,.md-body pre.hljs .hljs-template-variable{color:#ffcb6b}
.md-body pre.hljs .hljs-type,.md-body pre.hljs .hljs-built_in,.md-body pre.hljs .hljs-class .hljs-title{color:#67e8f9}
.md-body pre.hljs .hljs-deletion{color:#f87171}
.md-body pre.hljs .hljs-emphasis{font-style:italic}
.md-body pre.hljs .hljs-strong{font-weight:700}
.md-body blockquote{margin:14px 0;padding:10px 16px;background:#f8fafc;border-left:4px solid #c7d2fe;color:#475569;border-radius:0 8px 8px 0;line-height:1.8}
.md-body table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14.5px;overflow:hidden;border-radius:10px;box-shadow:0 0 0 1px var(--border,#e5e7eb)}
/* 宽表格兜底：内容过宽时表格内部横向滚动，不再撑破正文布局 */
.md-body table{display:block;max-width:100%;overflow-x:auto}
.md-body th,.md-body td{border:1px solid var(--border,#e5e7eb);padding:9px 12px;text-align:left}
.md-body th{background:#f3f4f6;font-weight:700;color:#111827}
.md-body tr:nth-child(even) td{background:#fafafa}
.md-body .header-anchor{opacity:0;color:#c7d2fe;text-decoration:none;border:0;margin-right:4px;font-weight:400}
.md-body h2:hover .header-anchor,.md-body h3:hover .header-anchor{opacity:1}
.md-body .err{color:#dc2626;font-weight:600}
/* 右侧浮动目录 */
.manual-toc{max-height:calc(100vh - 120px);overflow:auto}
.toc-title{font-size:12px;font-weight:800;color:#9ca3af;margin-bottom:8px;letter-spacing:.04em}
.toc-link{display:block;font-size:12.5px;color:#4b5563;text-decoration:none;padding:4px 8px;border-radius:6px;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.toc-link:hover{background:#eef2ff;color:#4338ca}
.toc-link.on{background:#eef2ff;color:#4338ca;font-weight:600}
.toc-link.lvl-3{margin-left:14px;font-size:12px;color:#6b7280}
@media (max-width:1380px){.doc-shell .manual-toc{display:none!important}}
/* 标题自动编号（1.1 / 1.1.1） */
.md-body .hd-num{margin-right:9px;color:#111827}
.md-body h3 .hd-num{color:#374151}

/* ---------- 知识手册：在线新建 / 编辑（教师与管理员） ---------- */
.sidenav .side-manual-sub .mtree-tools{display:flex;gap:6px;padding:8px 10px 4px}
.sidenav .side-manual-sub .mtree-tools button{flex:1;font-size:12.5px;font-weight:600;padding:6px 4px;border:1px solid var(--border,#e5e7eb);background:#fff;border-radius:8px;cursor:pointer;color:#374151;transition:.12s;white-space:nowrap}
.sidenav .side-manual-sub .mtree-tools button:hover{border-color:var(--primary,#4f46e5);color:var(--primary,#4f46e5);background:#eef2ff}
.manual-editor{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.manual-ed-bar{display:flex;gap:8px;align-items:center}
.manual-ed-bar .manual-ed-title{flex:1;padding:8px 12px;font-size:14px;border:1px solid var(--border,#e5e7eb);border-radius:8px}
.manual-ed-ta{width:100%;min-height:56vh;resize:vertical;padding:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;line-height:1.7;border:1px solid var(--border,#e5e7eb);border-radius:10px;background:#fbfcfe;color:#111827;box-sizing:border-box}
.manual-ed-ta:focus{outline:2px solid rgba(79,70,229,.35);border-color:var(--primary,#4f46e5)}
.manual-inline-panel .md-head{display:flex;align-items:center;gap:10px}
.manual-edit-btn{margin-left:auto;flex:none}