:root{
  --navy:#173679; --navy-d:#0E2350; --navy-l:#2A57A8;
  --gold:#C8A052; --gold-l:#E2C173;
  --ink:#1B2430; --ink-2:#4A5568; --ink-3:#8A94A6;
  --bg:#F4F6FA; --card:#FFFFFF; --line:#E4E8EF;
  --ok:#1F9D6B; --warn:#D08A1E; --danger:#C0392B;
  --r:14px; --sh:0 2px 10px rgba(23,54,121,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"Noto Sans CJK SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg); color:var(--ink); -webkit-font-smoothing:antialiased;
  font-size:15px; line-height:1.65;
}
a{color:var(--navy);text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}

/* ── 顶栏 ── */
.topbar{
  height:64px; background:linear-gradient(100deg,#0E2350 0%,#173679 55%,#1D4691 100%);
  display:flex; align-items:center; padding:0 28px; gap:14px;
  position:sticky; top:0; z-index:50; box-shadow:0 2px 12px rgba(14,35,80,.25);
}
.topbar .brand{display:flex;align-items:center;gap:11px;color:#fff}
.topbar .brand svg{display:block}
.topbar .brand .t{font-size:17.5px;font-weight:700;letter-spacing:2.5px}
.topbar .brand .s{font-size:11px;color:#9FB2D4;letter-spacing:2px;margin-top:1px}
.topbar .spacer{flex:1}
.topbar .who{color:#C7D5EC;font-size:13.5px;letter-spacing:.5px}
.topbar .who b{color:#fff;font-weight:600}
.tb-btn{
  height:34px; padding:0 16px; border-radius:8px; border:1px solid rgba(255,255,255,.35);
  background:rgba(255,255,255,.08); color:#fff; font-size:13.5px; letter-spacing:1px;
  transition:.18s; display:inline-flex; align-items:center;
}
.tb-btn:hover{background:rgba(255,255,255,.2)}
.tb-btn.gold{background:linear-gradient(180deg,var(--gold-l),var(--gold));border-color:transparent;color:#3A2A06;font-weight:600}

/* ── 容器 ── */
.wrap{max-width:1180px;margin:0 auto;padding:26px 22px 60px}
.wrap.wide{max-width:1360px}
.page-h{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:20px;gap:16px;flex-wrap:wrap}
.page-h h1{font-size:22px;letter-spacing:1px}
.page-h .sub{font-size:13px;color:var(--ink-3);margin-top:4px;letter-spacing:.5px}

/* ── 卡片 ── */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh)}
.card-h{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.card-h h2{font-size:16px;letter-spacing:1px;display:flex;align-items:center;gap:9px}
.card-h h2::before{content:"";width:4px;height:15px;border-radius:2px;background:linear-gradient(180deg,var(--gold-l),var(--gold))}
.card-b{padding:20px}
.card-h .ops{display:flex;gap:8px}

/* ── 按钮 ── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 16px;border-radius:9px;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);font-size:13.5px;letter-spacing:.5px;transition:.16s;
  line-height:1;white-space:nowrap;vertical-align:middle;text-align:center;
  text-decoration:none;font-family:inherit;cursor:pointer;
}
.btn:hover{border-color:#C3CEDF;background:#F7F9FC}
.btn.primary{background:var(--navy);border-color:var(--navy);color:#fff}
.btn.primary:hover{background:var(--navy-l);border-color:var(--navy-l)}
.btn.gold{background:linear-gradient(180deg,var(--gold-l),var(--gold));border-color:transparent;color:#3A2A06;font-weight:600}
.btn.sm{height:30px;padding:0 12px;font-size:12.5px;border-radius:7px}
.btn.danger{color:var(--danger);border-color:#EED3CF}
.btn.danger:hover{background:#FDF3F2}

/* ── 表单 ── */
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--ink-3);letter-spacing:1px;margin-bottom:6px}
.inp{
  width:100%;height:40px;padding:0 13px;border:1px solid var(--line);border-radius:9px;
  background:#fff;color:var(--ink);outline:none;transition:.16s;
}
.inp:focus{border-color:var(--navy-l);box-shadow:0 0 0 3px rgba(42,87,168,.10)}
textarea.inp{height:auto;padding:10px 13px;resize:vertical;line-height:1.6}
select.inp{appearance:none;background:#fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' stroke='%238A94A6' stroke-width='1.6' fill='none' stroke-linecap='round'/></svg>") no-repeat right 13px center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 16px}

/* ── 表格 ── */
table.tb{width:100%;border-collapse:collapse;font-size:14px}
table.tb th{
  text-align:left;font-weight:500;font-size:12.5px;letter-spacing:1px;color:var(--ink-3);
  padding:11px 14px;border-bottom:1px solid var(--line);background:#FAFBFD;white-space:nowrap;
}
table.tb td{padding:12px 14px;border-bottom:1px solid #F0F3F7;vertical-align:middle}
table.tb tr:last-child td{border-bottom:none}
table.tb tr:hover td{background:#F8FAFD}

/* ── 标签 ── */
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;letter-spacing:.5px}
.tag.admin{background:#EAF0FB;color:#173679}
.tag.teacher{background:#EAF6F3;color:#1F7A62}
.tag.sales{background:#FDF3E4;color:#9A6B12}
.tag.tutor{background:#F0EDFA;color:#5445A8}
.tag.student{background:#EFF3F7;color:#4A5568}

/* ── 空态 ── */
.empty{text-align:center;padding:46px 20px;color:var(--ink-3);font-size:14px}
.empty .ico{font-size:30px;opacity:.35;margin-bottom:10px}

/* ── 提示条 ── */
.hint{background:#F7F9FC;border:1px solid var(--line);border-left:3px solid var(--gold);
      border-radius:8px;padding:11px 14px;font-size:13px;color:var(--ink-2);line-height:1.7}

/* ── 弹层 ── */
.modal-bg{position:fixed;top:0;left:0;right:0;bottom:0;width:100%;height:100%;
          background:rgba(16,26,45,.5);display:none;
          align-items:center;justify-content:center;z-index:100;padding:20px}
.modal-bg.on{display:flex}
.modal{background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:88vh;overflow:auto;
       box-shadow:0 24px 60px rgba(10,20,40,.28)}
.modal .mh{padding:18px 22px;border-bottom:1px solid var(--line);display:flex;
           align-items:center;justify-content:space-between}
.modal .mh h3{font-size:16px;letter-spacing:1px}
.modal .mb{padding:20px 22px}
.modal .mf{padding:14px 22px 20px;display:flex;justify-content:flex-end;gap:10px}
.x{width:30px;height:30px;border-radius:8px;border:none;background:transparent;color:var(--ink-3);font-size:19px}
.x:hover{background:#F0F3F7}

/* ── 登录页 ── */
.login-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(900px 460px at 78% 8%, rgba(42,87,168,.55), transparent 62%),
    radial-gradient(700px 420px at 12% 92%, rgba(200,160,82,.22), transparent 60%),
    linear-gradient(150deg,#0A1836 0%,#122C5C 48%,#0B1B3C 100%);
  padding:24px}
.login-card{width:100%;max-width:392px;background:#fff;border-radius:20px;padding:38px 34px 34px;
  box-shadow:0 30px 80px rgba(4,12,28,.45)}
.login-card .lg{display:flex;flex-direction:column;align-items:center;margin-bottom:26px}
.login-card .lg .n{font-size:20px;font-weight:700;letter-spacing:4px;color:var(--navy);margin-top:14px}
.login-card .lg .e{font-size:10.5px;color:#A6B0C0;letter-spacing:3px;margin-top:5px}
.login-err{background:#FDF3F2;border:1px solid #F0D6D2;color:#B03A2B;font-size:13px;
  padding:9px 13px;border-radius:8px;margin-bottom:14px;display:none}
.login-err.on{display:block}
.login-card .btn.primary{width:100%;height:44px;font-size:15px;letter-spacing:3px;text-indent:3px;margin-top:6px}
.login-foot{text-align:center;font-size:12px;color:#A6B0C0;margin-top:20px;letter-spacing:1px}

/* ── 首页 ── */
.hero{padding:34px 0 10px}
.hero h1{font-size:30px;letter-spacing:3px;color:var(--navy-d)}
.hero p{color:var(--ink-3);font-size:14px;letter-spacing:1px;margin-top:8px}

.poster-row{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:20px}
.poster-main{border-radius:16px;overflow:hidden;background:#122C5C;position:relative;min-height:328px;
  display:flex;align-items:center;justify-content:center}
.poster-main img{width:100%;height:100%;object-fit:cover;display:block}
.poster-main .ph{color:#8FA8D4;font-size:14px;letter-spacing:2px}
.poster-main .cap{position:absolute;left:0;right:0;bottom:0;padding:44px 22px 18px;
  background:linear-gradient(transparent,rgba(6,16,36,.86));color:#fff}
.poster-main .cap .t{font-size:19px;font-weight:700;letter-spacing:1.5px}
.poster-main .cap .s{font-size:12.5px;color:#C3D2E8;margin-top:5px;letter-spacing:1px}
.poster-list{display:flex;flex-direction:column;gap:9px;max-height:340px;overflow:auto}
.poster-item{border:1px solid var(--line);border-radius:11px;padding:11px 13px;background:#fff;
  cursor:pointer;transition:.15s;display:flex;gap:11px;align-items:center}
.poster-item:hover{border-color:#C3CEDF;background:#FAFCFF}
.poster-item.on{border-color:var(--navy);background:#F3F7FE;box-shadow:0 0 0 2px rgba(23,54,121,.08)}
.poster-item .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);flex:none;margin-top:6px}
.poster-item .tt{font-size:13.5px;font-weight:600;line-height:1.45}
.poster-item .ss{font-size:11.5px;color:var(--ink-3);margin-top:3px;letter-spacing:.5px}

/* 开班计划自动滚动 */
.scrollbox{max-height:320px;overflow:hidden;position:relative}
.scrollbox::after{content:"";position:absolute;left:0;right:0;bottom:0;height:34px;
  background:linear-gradient(transparent,#fff);pointer-events:none}
.sx-track{animation:up 26s linear infinite}
.scrollbox:hover .sx-track{animation-play-state:paused}
@keyframes up{from{transform:translateY(0)}to{transform:translateY(-50%)}}
@media (prefers-reduced-motion:reduce){.sx-track{animation:none}}

@media (max-width:900px){
  .poster-row{grid-template-columns:1fr}
  .grid2,.grid3{grid-template-columns:1fr}
  .topbar{padding:0 16px}
  .wrap{padding:18px 14px 48px}
  .hero h1{font-size:23px}
}

/* ── 工作台布局 ── */
.shell{display:flex;min-height:calc(100vh - 64px);align-items:flex-start}
.side{
  width:212px;flex:none;background:#fff;border-right:1px solid var(--line);
  padding:18px 12px;position:sticky;top:64px;height:calc(100vh - 64px);overflow:auto;
}
.side .grp{font-size:11px;color:#A6B0C0;letter-spacing:2px;padding:10px 12px 6px}
.side a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;
  color:var(--ink-2);font-size:14px;letter-spacing:.5px;transition:.15s;margin-bottom:2px;
}
.side a:hover{background:#F4F7FC;color:var(--navy)}
.side a.on{background:linear-gradient(100deg,#F0F5FE,#F7FAFF);color:var(--navy);font-weight:600;
  box-shadow:inset 3px 0 0 var(--gold)}
.side a .i{width:18px;text-align:center;opacity:.75}
.main{flex:1;min-width:0;padding:24px 26px 60px}

/* ── 统计卡 ── */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:var(--sh)}
.stat .k{font-size:12px;color:var(--ink-3);letter-spacing:1px}
.stat .v{font-size:26px;font-weight:700;color:var(--navy);margin-top:6px;letter-spacing:.5px}
.stat .v small{font-size:13px;font-weight:400;color:var(--ink-3);margin-left:4px}

/* ── 题库/视频卡 ── */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:16px}
.tile{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;
  box-shadow:var(--sh);transition:.18s;position:relative;overflow:hidden}
.tile:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(23,54,121,.12);border-color:#CFDAEA}
.tile .n{font-size:16px;font-weight:700;letter-spacing:1px;color:var(--ink)}
.tile .c{font-size:12.5px;color:var(--ink-3);margin-top:6px;letter-spacing:.5px}
.tile .go{margin-top:16px}
.tile::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;
  border-radius:50%;background:linear-gradient(135deg,rgba(200,160,82,.16),transparent 70%)}

.sec-title{font-size:15px;font-weight:600;letter-spacing:1px;margin:26px 0 12px;
  display:flex;align-items:center;gap:9px}
.sec-title::before{content:"";width:4px;height:14px;border-radius:2px;
  background:linear-gradient(180deg,var(--gold-l),var(--gold))}

video{width:100%;border-radius:10px;background:#000;display:block}
.vlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.vcard{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--sh)}
.vcard .vb{padding:14px 16px}
.vcard .vt{font-size:14.5px;font-weight:600;line-height:1.5}
.vcard .vd{font-size:12.5px;color:var(--ink-3);margin-top:5px;line-height:1.6}
.vcard .vf{display:flex;gap:8px;margin-top:12px}

/* ── 手机端适配 ── */
@media (max-width:900px){
  .shell{flex-direction:column;align-items:stretch;width:100%;max-width:100%}
  .main{width:100%;max-width:100%;flex:none}
  .card{max-width:100%}
  .side{width:100%;height:auto;position:static;display:flex;flex-wrap:nowrap;
        overflow-x:auto;padding:10px 12px;gap:6px;border-right:none;border-bottom:1px solid var(--line)}
  .side .grp{display:none}
  .side a{white-space:nowrap;margin-bottom:0;padding:8px 13px;gap:6px}
  .side a.on{box-shadow:inset 0 -3px 0 var(--gold);background:#F0F5FE}
  .main{padding:16px 12px 70px}
  .card-b{overflow-x:auto}
  table.tb{min-width:600px}
  .stats{grid-template-columns:1fr 1fr}
  .tiles,.vlist{grid-template-columns:1fr}
  .page-h h1{font-size:19px}
  .modal{max-width:100%}
  .card-grid{width:calc(100vw - 36px) !important;right:18px !important}
}
@media (max-width:640px){
  .topbar{gap:8px;padding:0 12px;height:56px}
  .topbar .brand .s{display:none}
  .topbar .brand .t{font-size:14.5px;letter-spacing:1px}
  .topbar .brand img{width:38px;height:26px}
  .topbar .who{display:none}
  .tb-btn{height:30px;padding:0 10px;font-size:12.5px;letter-spacing:0}
  .login-card{padding:30px 22px 26px}
  .hero h1{font-size:21px;letter-spacing:2px}
  .poster-main{min-height:220px}
  .qwrap{padding:14px 12px 80px}
  .qbar{padding:9px 10px;gap:7px}
  .card-btn{padding:0 10px;font-size:12.5px;height:34px}
}

/* 可点击的卡片：整块都能点 */
.tile.clickable{cursor:pointer}
.tile.clickable:hover .n{color:var(--navy)}
.tile.clickable:active{transform:translateY(0)}

/* ── 刷题界面（学员页内嵌 & 独立页共用） ── */
.qwrap{max-width:900px;margin:0 auto;padding:18px 16px 90px}
.qtop{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.qtop .bk{font-size:19px;font-weight:700;letter-spacing:1px}
.seg{display:inline-flex;background:#fff;border:1px solid var(--line);border-radius:10px;padding:3px;gap:3px}
.seg button{border:none;background:transparent;padding:7px 15px;border-radius:8px;font-size:13.5px;
  color:var(--ink-2);letter-spacing:.5px;transition:.15s;cursor:pointer}
.seg button.on{background:var(--navy);color:#fff;font-weight:600}
.qcard{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh);padding:26px 28px}
.qhead{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.qno{font-size:13px;color:var(--ink-3);letter-spacing:1px}
.qtext{font-size:17px;line-height:1.85;font-weight:600;letter-spacing:.3px;margin-bottom:20px}
.opt{display:flex;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:11px;
  margin-bottom:10px;cursor:pointer;transition:.15s;align-items:flex-start;background:#fff}
.opt:hover{border-color:#C3CEDF;background:#FAFCFF}
.opt .k{width:23px;height:23px;flex:none;border-radius:50%;border:1.5px solid #C6D0DE;color:var(--ink-3);
  font-size:13px;display:flex;align-items:center;justify-content:center;font-weight:600;margin-top:1px}
.opt .v{flex:1;line-height:1.7}
.opt.sel{border-color:var(--navy);background:#F3F7FE}
.opt.sel .k{background:var(--navy);border-color:var(--navy);color:#fff}
.opt.right{border-color:#1F9D6B;background:#F1FAF6}
.opt.right .k{background:#1F9D6B;border-color:#1F9D6B;color:#fff}
.opt.wrong{border-color:#C0392B;background:#FDF4F3}
.opt.wrong .k{background:#C0392B;border-color:#C0392B;color:#fff}
.opt.locked{cursor:default}
.fb{margin:-4px 0 16px;padding:11px 15px;border-radius:9px;font-size:14px;font-weight:600;letter-spacing:.5px}
.fb.ok{background:#F1FAF6;border:1px solid #B9E4D0;color:#1F7A62}
.fb.no{background:#FDF4F3;border:1px solid #F0D6D2;color:#B03A2B}
.expl{margin-top:16px;padding:14px 16px;background:#F7F9FC;border-left:3px solid var(--gold);
  border-radius:8px;font-size:14px;line-height:1.8;color:var(--ink-2)}
.expl b{color:var(--navy)}
.qbar{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);
  padding:12px 18px;display:flex;align-items:center;gap:12px;z-index:40;box-shadow:0 -4px 18px rgba(20,35,60,.07)}
.qbar .sp{flex:1}
.qbar .pg{font-size:13px;color:var(--ink-3);letter-spacing:1px}
.card-btn{border:1px solid var(--line);background:#fff;border-radius:9px;height:36px;padding:0 14px;
  font-size:13.5px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.card-btn:hover{border-color:#C3CEDF}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(42px,1fr));gap:8px;margin-top:14px}
.card-grid b{height:38px;border-radius:8px;border:1px solid var(--line);display:flex;align-items:center;
  justify-content:center;font-size:13px;font-weight:500;color:var(--ink-2);cursor:pointer;background:#fff}
.card-grid b.done{background:#EAF0FB;border-color:#C6D6F0;color:var(--navy)}
.card-grid b.cur{outline:2px solid var(--navy);outline-offset:1px}
.card-grid b.ok{background:#F1FAF6;border-color:#B9E4D0;color:#1F7A62}
.card-grid b.no{background:#FDF4F3;border-color:#F0D6D2;color:#B03A2B}
.result{text-align:center;padding:30px 20px}
.result .sc{font-size:52px;font-weight:700;color:var(--navy);letter-spacing:2px}
.result .sc small{font-size:18px;color:var(--ink-3);font-weight:400}
.result .msg{color:var(--ink-3);margin-top:8px;font-size:14px;letter-spacing:1px}
@media(max-width:640px){.qcard{padding:20px 18px}.qtext{font-size:16px}.qbar{padding:9px 10px;gap:7px}
  .card-btn{padding:0 10px;font-size:12.5px;height:34px}}

/* ── 开班计划：手机端横向滑动（修复右侧被裁切） ── */
@media (max-width:768px){
  .scrollbox{
    max-height:none;
    overflow-x:auto;
    overflow-y:visible;
    -webkit-overflow-scrolling:touch;
    padding-bottom:4px;
  }
  .scrollbox::after{display:none}
  #sxBox{scrollbar-width:thin}
  #sxBox::-webkit-scrollbar{height:5px}
  #sxBox::-webkit-scrollbar-thumb{background:#C6D6F0;border-radius:3px}
  #sxBox::-webkit-scrollbar-track{background:#F2F7FD;border-radius:3px}
}

/* 带表格的宽弹窗（实训记录 · 学员详情） */
#modalBg.wide .modal{max-width:900px}

/* 实训记录表格：8 列内容多，给足最小宽度；容器窄了就横向滚动，
   不截断日期、不重叠文字（固定布局 + 百分比在窄屏下会把列挤扁） */
#sec-trainings .card{width:fit-content;max-width:100%}
#sec-trainings .card-b{overflow-x:auto}
/* width:auto —— 表格按内容宽排，不强行铺满整页。
   铺满的话多余宽度会摊进各列，院校名称和起始日期之间就空出一大片 */
#sec-trainings table.tb{width:auto;min-width:900px;table-layout:auto}
#sec-trainings th,#sec-trainings td{white-space:nowrap}
#sec-trainings th:nth-child(1){width:64px}
#sec-trainings th:nth-child(2){width:130px}
#sec-trainings th:nth-child(3),
#sec-trainings th:nth-child(4){width:118px}
#sec-trainings th:nth-child(5){width:100px}
#sec-trainings th:nth-child(6){width:94px}
#sec-trainings th:nth-child(7){width:112px}
#sec-trainings th:nth-child(8){width:158px}

/* 引流信息 / 开班计划表格：和实训记录同一套思路
   —— 内容一行显示完整，不截断也不换行（换行会把行高撑高）；
      表格按内容宽排，容器窄了就横向滚动 */
#sec-leads .card,
#sec-schedules .card{width:fit-content;max-width:100%}
#sec-leads .card-b,
#sec-schedules .card-b{overflow-x:auto}
#sec-leads table.tb,
#sec-schedules table.tb{width:auto;table-layout:auto}
#sec-leads th,#sec-leads td,
#sec-schedules th,#sec-schedules td{white-space:nowrap}