:root{
  --bg-0:#05101f;
  --bg-1:#081a33;
  --bg-2:#0b2545;
  --glass:rgba(255,255,255,0.05);
  --glass-strong:rgba(255,255,255,0.09);
  --border:rgba(120,170,255,0.18);
  --border-strong:rgba(120,170,255,0.35);
  --primary:#2f7bff;
  --primary-2:#1e90ff;
  --cyan:#22d3ee;
  --text:#e8f1ff;
  --muted:#9fb6d6;
  --ok:#34d399;
  --warn:#fbbf24;
  --danger:#f87171;
  --shadow:0 18px 50px rgba(0,0,0,0.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(47,123,255,0.25), transparent 60%),
    radial-gradient(1000px 500px at 100% 0%, rgba(34,211,238,0.18), transparent 55%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1) 55%, var(--bg-2));
  background-attachment:fixed;
  min-height:100vh;
}
a{color:var(--cyan);text-decoration:none}
button{font-family:inherit;cursor:pointer}

/* ===== 登录页 ===== */
.login-wrap{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;overflow:hidden}
#particles{position:fixed;top:0;left:0;width:100vw;height:100vh;display:block;z-index:0}
.login-card{
  position:relative;z-index:1;width:min(92vw,400px);
  background:var(--glass-strong);backdrop-filter:blur(18px);
  border:1px solid var(--border-strong);border-radius:20px;
  padding:38px 34px;box-shadow:var(--shadow);
}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.brand .logo{
  width:44px;height:44px;border-radius:12px;overflow:hidden;display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(37,99,235,0.45);
}
.brand .logo img{width:100%;height:100%;display:block}
.brand h1{font-size:21px;font-weight:800;letter-spacing:1px;line-height:1.2;
  background:linear-gradient(135deg,#2f7bff,#22d3ee);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.brand .sub{font-size:12px;color:var(--muted);margin-top:2px}
.login-card h2{margin:18px 0 4px;font-size:22px}
.login-card .tip{color:var(--muted);font-size:13px;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}
.input{
  width:100%;padding:12px 14px;border-radius:11px;font-size:14px;color:var(--text);
  background:rgba(255,255,255,0.06);border:1px solid var(--border);outline:none;transition:.2s;
}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,123,255,0.18);background:rgba(255,255,255,0.09)}
.row-between{display:flex;align-items:center;justify-content:space-between;font-size:13px;margin-bottom:18px}
.remember{display:flex;align-items:center;gap:7px;color:var(--muted)}
.link{color:var(--cyan);cursor:pointer}
.btn{
  width:100%;padding:12px 16px;border:none;border-radius:11px;font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));transition:.2s;
  box-shadow:0 10px 24px rgba(47,123,255,0.35);
}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(47,123,255,0.5)}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn.ghost{background:rgba(255,255,255,0.07);border:1px solid var(--border);box-shadow:none}
.btn.danger{background:linear-gradient(135deg,#ef4444,#f87171);box-shadow:0 10px 24px rgba(239,68,68,0.3)}
.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary);box-shadow:none;flex:1;width:auto}
.btn-outline:hover{background:rgba(47,123,255,0.08);transform:none;box-shadow:none}
.btn.sm{padding:7px 12px;font-size:13px;width:auto;border-radius:9px}
.demo-box{margin-top:20px;padding-top:16px;border-top:1px dashed var(--border)}
.demo-box .t{font-size:12px;color:var(--muted);margin-bottom:10px}
.demo-acc{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:6px 11px;font-size:12px;border-radius:20px;border:1px solid var(--border);background:rgba(255,255,255,0.05);color:var(--text);cursor:pointer;transition:.15s}
.chip:hover{border-color:var(--primary);background:rgba(47,123,255,0.15)}

/* ===== 登录页 · 浅色科技蓝主题（仅 login.html 生效，不影响后台深色界面）===== */
.login-wrap{
  background:
    radial-gradient(1100px 520px at 12% -8%, rgba(47,123,255,0.20), transparent 60%),
    radial-gradient(900px 460px at 100% 0%, rgba(34,211,238,0.16), transparent 55%),
    linear-gradient(160deg, #eef4ff 0%, #f6faff 55%, #e7f0ff 100%);
}
.login-wrap .login-card{
  background:rgba(255,255,255,0.80);
  border:1px solid rgba(47,123,255,0.22);
  box-shadow:0 22px 60px rgba(31,76,168,0.18);
  color:#0f2a4d;
}
.login-wrap .brand h1{color:transparent;background:linear-gradient(135deg,#1d4ed8,#0ea5e9);-webkit-background-clip:text;background-clip:text}
.login-wrap .brand .sub{color:#5b7290}
.login-wrap .login-card h2{color:#0f2a4d}
.login-wrap .login-card .tip{color:#5b7290}
.login-wrap .field label{color:#5b7290}
.login-wrap .input{
  background:rgba(255,255,255,0.92);
  border:1px solid rgba(47,123,255,0.25);
  color:#0f2a4d;
}
.login-wrap .input::placeholder{color:#93a7c2}
.login-wrap .input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,123,255,0.18);background:#fff}
.login-wrap .remember{color:#5b7290}
.login-wrap .link{color:#1e63eb}
.login-wrap .demo-box{border-top:1px dashed rgba(47,123,255,0.25)}
.login-wrap .demo-box .t{color:#5b7290}
.login-wrap .chip{background:rgba(47,123,255,0.08);border:1px solid rgba(47,123,255,0.25);color:#0f2a4d}
.login-wrap .chip:hover{border-color:var(--primary);background:rgba(47,123,255,0.16)}
/* 强对比按钮：深饱和蓝 */
.login-wrap .btn{
  background:linear-gradient(135deg,#2563eb,#1d4ed8);
  color:#fff;
  box-shadow:0 12px 26px rgba(29,78,216,0.45);
}
.login-wrap .btn:hover{box-shadow:0 16px 34px rgba(29,78,216,0.6)}
.login-wrap .btn.ghost{background:rgba(47,123,255,0.08);border:1px solid rgba(47,123,255,0.30);color:#1e63eb;box-shadow:none}
.login-wrap #status{color:#1e63eb}
.login-wrap #errMsg{color:#dc2626}
.login-wrap .switch{margin-top:16px;text-align:center;font-size:13px;color:#5b7290}
.login-wrap .switch b{color:#1e63eb;cursor:pointer}
.login-wrap .switch b:hover{text-decoration:underline}

/* ===== 大模型智能匹配 ===== */
.tag{display:inline-block;padding:3px 11px;border-radius:20px;font-size:12px;font-weight:600;vertical-align:middle}
.tag-blue{background:rgba(37,99,235,.12);color:#1d4ed8;border:1px solid rgba(37,99,235,.3)}
.tag-amber{background:rgba(245,158,11,.15);color:#b45309;border:1px solid rgba(245,158,11,.35)}
.tag-green{background:rgba(22,163,74,.12);color:#15803d;border:1px solid rgba(22,163,74,.3)}
.match-list{display:flex;flex-direction:column;gap:12px}
.match-card{background:linear-gradient(135deg,rgba(37,99,235,.07),rgba(14,165,233,.07));border:1px solid var(--border);border-radius:14px;padding:14px 16px}
.match-head{display:flex;justify-content:space-between;align-items:center;gap:14px}
.match-name{font-weight:700;font-size:16px;color:var(--text)}
.match-score{display:flex;align-items:center;gap:8px;min-width:170px}
.score-bar{flex:1;height:8px;border-radius:6px;background:rgba(37,99,235,.15);overflow:hidden}
.score-bar span{display:block;height:100%;background:linear-gradient(90deg,#2563eb,#0ea5e9);border-radius:6px}
.match-score b{color:#1d4ed8;font-size:14px;min-width:26px;text-align:right}
.match-meta{color:var(--muted);font-size:13px;margin:8px 0 6px}
.match-reason{font-size:13px;color:#0f2a4d;background:rgba(255,255,255,.6);border:1px solid var(--border);border-radius:8px;padding:8px 10px;margin-bottom:10px}

/* ===== 后台 · 浅色科技蓝主题（与登录页一致，作用于 index.html 的 body.theme-light）===== */
body.theme-light{
  --glass:rgba(255,255,255,0.72);
  --glass-strong:rgba(255,255,255,0.85);
  --border:rgba(47,123,255,0.18);
  --border-strong:rgba(47,123,255,0.32);
  --text:#0f2a4d;
  --muted:#5b7290;
  --shadow:0 18px 50px rgba(31,76,168,0.12);
}
body.theme-light .app{
  background:linear-gradient(160deg,#eef4ff 0%,#f6faff 55%,#e7f0ff 100%);
  background-attachment:fixed;
}
body.theme-light .sidebar{background:rgba(255,255,255,0.90);border-right:1px solid var(--border)}
body.theme-light .topbar{background:rgba(255,255,255,0.85)}
body.theme-light .nav-item{color:var(--muted)}
body.theme-light .nav-item:hover{background:rgba(47,123,255,0.08);color:var(--text)}
body.theme-light .input{background:rgba(255,255,255,0.92);color:#0f2a4d}
body.theme-light .input:focus{background:#fff}
body.theme-light .input::placeholder{color:#93a7c2}
body.theme-light .modal-mask{background:rgba(15,42,77,0.32)}
body.theme-light .modal{background:linear-gradient(160deg,#ffffff,#f2f7ff);color:var(--text)}
body.theme-light .toast{background:rgba(255,255,255,0.97);color:#0f2a4d}
body.theme-light tr:hover td{background:rgba(47,123,255,0.06)}
body.theme-light .bar-track{background:rgba(47,123,255,0.12)}
body.theme-light .msg.them{background:rgba(47,123,255,0.08);border:1px solid var(--border)}
body.theme-light .btn.ghost{
  background:rgba(255,255,255,0.85);
  border:1.5px solid rgba(47,123,255,0.35);
  color:#1e63eb;
  box-shadow:0 2px 8px rgba(30,99,235,0.12);
}
body.theme-light .btn.ghost:hover{
  background:rgba(47,123,255,0.08);
  border-color:var(--primary);
}
body.theme-light .btn-outline{
  background:#fff;
  border-color:rgba(47,123,255,0.45);
  color:#1e63eb;
  box-shadow:0 2px 8px rgba(30,99,235,0.10);
}
body.theme-light .btn-outline:hover{
  background:rgba(47,123,255,0.06);
}

/* ===== 立体退出按钮 ===== */
.btn-logout{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 18px;border:none;border-radius:10px;
  font-size:14px;font-weight:700;color:#fff;
  letter-spacing:1px;
  background:linear-gradient(180deg,#ef4444 0%,#dc2626 45%,#b91c1c 100%);
  box-shadow:
    0 4px 0 #7f1d1d,
    0 6px 12px rgba(185,28,28,0.35),
    inset 0 1px 0 rgba(255,255,255,0.25);
  cursor:pointer;transition:.15s;position:relative;top:0;
  user-select:none;
}
.btn-logout:hover{
  top:-2px;
  box-shadow:
    0 6px 0 #7f1d1d,
    0 10px 20px rgba(185,28,28,0.45),
    inset 0 1px 0 rgba(255,255,255,0.3);
}
.btn-logout:active{
  top:2px;
  box-shadow:
    0 2px 0 #7f1d1d,
    0 3px 6px rgba(185,28,28,0.3),
    inset 0 1px 0 rgba(255,255,255,0.15);
}

/* ===== 描边按钮（浅色主题下可见）===== */
.btn-outline{
  background:rgba(255,255,255,0.85);
  border:1.5px solid rgba(47,123,255,0.35);
  color:#1e63eb;
  box-shadow:0 2px 8px rgba(30,99,235,0.12);
}
.btn-outline:hover{
  background:rgba(47,123,255,0.08);
  border-color:var(--primary);
  box-shadow:0 4px 12px rgba(30,99,235,0.2);
}

/* ===== 应用布局 ===== */
.app{display:flex;min-height:100vh}
.sidebar{
  width:236px;flex-shrink:0;padding:20px 14px;
  background:rgba(6,18,38,0.65);backdrop-filter:blur(14px);border-right:1px solid var(--border);
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
}
.sidebar .brand{margin:6px 6px 22px}
.nav{flex:1;display:flex;flex-direction:column;gap:4px;overflow:auto}
.nav-item{
  display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:11px;
  color:var(--muted);font-size:14px;cursor:pointer;transition:.15s;border:1px solid transparent;
}
.nav-item:hover{background:rgba(255,255,255,0.05);color:var(--text)}
.nav-item.active{background:linear-gradient(135deg,rgba(47,123,255,0.28),rgba(34,211,238,0.16));color:#fff;border-color:var(--border-strong)}
.nav-item .ic{width:20px;text-align:center}
.sidebar .foot{font-size:12px;color:var(--muted);padding:10px 6px 0;border-top:1px solid var(--border)}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{
  height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 26px;
  border-bottom:1px solid var(--border);background:rgba(6,18,38,0.4);backdrop-filter:blur(10px);
  position:sticky;top:0;z-index:5;
}
.topbar .page-title{font-size:17px;font-weight:600}
.topbar .user{display:flex;align-items:center;gap:12px}
.avatar{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--cyan));
}
.content{padding:26px;max-width:1280px;width:100%}
.nav-toggle{display:none}
.nav-overlay{display:none}

/* ===== 卡片 / 统计 ===== */
.card{background:var(--glass);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px;margin-bottom:22px}
.stat-card{background:linear-gradient(150deg,var(--glass-strong),var(--glass));border:1px solid var(--border);border-radius:16px;padding:18px 20px;position:relative;overflow:hidden}
.stat-card::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(47,123,255,0.4),transparent 70%)}
.stat-card .label{color:var(--muted);font-size:13px}
.stat-card .val{font-size:30px;font-weight:700;margin-top:6px}
.stat-card .val small{font-size:14px;color:var(--muted);font-weight:400}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .sidebar{
    position:fixed;top:0;left:0;height:100vh;width:244px;z-index:60;
    transform:translateX(-100%);transition:transform .25s ease;
    box-shadow:0 0 40px rgba(0,0,0,.45);
  }
  .sidebar.open{transform:translateX(0)}
  .nav-toggle{
    display:flex;align-items:center;justify-content:center;
    width:40px;height:40px;margin-right:12px;border-radius:10px;
    border:1px solid var(--border);background:var(--glass);color:var(--text);
    cursor:pointer;font-size:18px;line-height:1;flex-shrink:0;
  }
  .nav-overlay{
    display:block;position:fixed;inset:0;background:rgba(0,0,0,.45);
    z-index:50;opacity:0;pointer-events:none;transition:opacity .25s;
  }
  .nav-overlay.show{opacity:1;pointer-events:auto}
  .main{width:100%}
  .content{padding:16px}
  .topbar{padding:0 16px}
}

/* ===== 表格 ===== */
.table-wrap{overflow:auto;border-radius:14px;border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-weight:600;background:rgba(255,255,255,0.03);font-size:13px;position:sticky;top:0}
tr:hover td{background:rgba(255,255,255,0.03)}
td .actions{display:flex;gap:8px;flex-wrap:wrap}

/* ===== 徽章 ===== */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;border:1px solid var(--border)}
.badge.ok{color:var(--ok);border-color:rgba(52,211,153,.4);background:rgba(52,211,153,.12)}
.badge.warn{color:var(--warn);border-color:rgba(251,191,36,.4);background:rgba(251,191,36,.12)}
.badge.danger{color:var(--danger);border-color:rgba(248,113,113,.4);background:rgba(248,113,113,.12)}
.badge.info{color:var(--cyan);border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.12)}
.badge.muted{color:var(--muted)}

/* ===== 表单 ===== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:700px){.form-grid{grid-template-columns:1fr}}
select.input,textarea.input{width:100%}
textarea.input{resize:vertical;min-height:80px}
.form-actions{display:flex;gap:10px;margin-top:8px}

/* ===== 模态 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(3,10,20,0.6);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal-mask.show{display:flex}
.modal{width:min(94vw,560px);max-height:86vh;overflow:auto;background:linear-gradient(160deg,var(--bg-1),var(--bg-2));border:1px solid var(--border-strong);border-radius:18px;padding:24px;box-shadow:var(--shadow)}
.modal h3{margin-bottom:16px}
.modal .close{float:right;cursor:pointer;color:var(--muted);font-size:20px}
.modal-actions{display:flex;gap:12px;margin-top:18px}
.modal-actions .btn{flex:1;width:auto}

/* ===== 工具 ===== */
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:100;padding:12px 20px;border-radius:11px;font-size:14px;background:rgba(8,26,51,0.95);border:1px solid var(--border-strong);box-shadow:var(--shadow);opacity:0;transition:.3s;pointer-events:none}
.toast.show{opacity:1;top:28px}
.toast.err{border-color:rgba(248,113,113,.5)}
.toast.ok{border-color:rgba(52,211,153,.5)}
.empty{text-align:center;color:var(--muted);padding:40px 0}
.stars{color:var(--warn);letter-spacing:2px}
.muted{color:var(--muted)}
.section-title{font-size:15px;font-weight:600;margin:24px 0 12px;display:flex;align-items:center;gap:8px}
.tag{display:inline-block;padding:2px 9px;border-radius:7px;background:rgba(47,123,255,.15);border:1px solid var(--border);font-size:12px;margin:2px 4px 2px 0;color:var(--text)}
.bar-row{display:flex;align-items:center;gap:12px;margin-bottom:12px;font-size:13px}
.bar-row .name{width:120px;color:var(--muted)}
.bar-track{flex:1;height:10px;background:rgba(255,255,255,.06);border-radius:6px;overflow:hidden}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--cyan));border-radius:6px}
.bar-row .num{width:48px;text-align:right}
.teacher-card{display:flex;gap:14px;background:var(--glass);border:1px solid var(--border);border-radius:14px;padding:16px;margin-bottom:14px;cursor:pointer;transition:.15s}
.teacher-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.teacher-card .ava{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--cyan));display:grid;place-items:center;font-weight:700;flex-shrink:0}
.chat{display:flex;flex-direction:column;gap:10px;max-height:420px;overflow:auto;padding:6px}
.msg{max-width:72%;padding:10px 13px;border-radius:13px;font-size:14px}
.msg.me{align-self:flex-end;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}
.msg.them{align-self:flex-start;background:rgba(255,255,255,.08);border:1px solid var(--border)}

/* ===== 智能分析报告 ===== */
.report-box{border:1px solid var(--border);border-radius:16px;padding:22px 26px;background:var(--glass);margin-top:6px}
.md-body{font-size:14.5px;line-height:1.85;color:var(--text)}
.md-body h2{font-size:19px;margin:22px 0 10px;padding-left:12px;border-left:4px solid var(--primary);color:var(--text)}
.md-body h3{font-size:16px;margin:18px 0 8px;color:var(--text)}
.md-body h4{font-size:15px;margin:14px 0 6px;color:var(--text)}
.md-body p{margin:8px 0}
.md-body ul,.md-body ol{margin:8px 0;padding-left:24px}
.md-body li{margin:5px 0}
.md-body b{color:var(--primary);font-weight:700}

/* 浅色主题下报告可读性 */
body.theme-light .report-box{background:#fff;border-color:#dbe6f7}
body.theme-light .md-body{color:#1e2b45}
body.theme-light .md-body h2,.body.theme-light .md-body h3,.body.theme-light .md-body h4{color:#13294b}
body.theme-light .md-body b{color:#1d4ed8}

/* ===== 管理驾驶舱 ECharts 图表 ===== */
.dash{margin-top:18px;display:flex;flex-direction:column;gap:16px}
.dash-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.dash-row-wide{grid-template-columns:2fr 1fr}
.chart-card{position:relative;border-radius:16px;padding:14px 16px 10px;background:linear-gradient(160deg,#ffffff 0%,#eef4ff 100%);border:1px solid rgba(47,123,255,.20);box-shadow:0 8px 22px rgba(31,76,168,.10);overflow:hidden}
.chart-card::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 80% at 50% -10%,rgba(47,123,255,.14),transparent 60%);pointer-events:none}
.chart-title{font-size:14.5px;font-weight:600;color:#0f2a4d;margin-bottom:6px;letter-spacing:.5px;position:relative}
.chart{height:280px;width:100%;position:relative}
.chart-lg{height:320px}
@media(max-width:1100px){.dash-row,.dash-row-wide{grid-template-columns:1fr}}