:root{--primary:#1d4ed8;--primary-50:#eff6ff;--primary-100:#dbeafe;--text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--bg:#f6f7f9;--ok:#15803d;--ok-bg:#ecfdf5;--bad:#b91c1c;--bad-bg:#fef2f2;--warn:#b45309;--warn-bg:#fffbeb;--side:264px;--top:58px}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","WenQuanYi Micro Hei",sans-serif;color:var(--text);background:var(--bg);line-height:1.75;font-size:15px}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.topbar{position:fixed;top:0;left:0;right:0;height:var(--top);background:#0f2a5f;color:#fff;display:flex;align-items:center;gap:16px;padding:0 18px;z-index:30;box-shadow:0 1px 4px rgba(0,0,0,.15)}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:600;white-space:nowrap}.brand:hover{text-decoration:none}
.logo{background:#fff;color:#0f2a5f;font-weight:800;border-radius:6px;padding:2px 7px;font-size:14px;letter-spacing:.5px}
.search-wrap{flex:1;max-width:560px;margin-left:auto}
#searchInput{width:100%;padding:8px 14px;border-radius:20px;border:none;font-size:14px;outline:none;background:#fff}
.menu-btn{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer;padding:4px 8px}
.layout{display:flex;padding-top:var(--top);min-height:100vh}
.sidebar{position:fixed;top:var(--top);bottom:0;left:0;width:var(--side);background:#fff;border-right:1px solid var(--border);overflow-y:auto;padding:12px 0 40px;z-index:20}
.sidebar .sec{font-size:12px;color:var(--muted);padding:14px 20px 4px;font-weight:600;letter-spacing:1px}
.sidebar a.item{display:flex;align-items:center;gap:8px;padding:7px 20px;color:var(--text);font-size:14px;border-left:3px solid transparent}
.sidebar a.item:hover{background:var(--primary-50);text-decoration:none}
.sidebar a.item.active{background:var(--primary-50);border-left-color:var(--primary);color:var(--primary);font-weight:600}
.sidebar a.sub{display:block;padding:4px 20px 4px 46px;font-size:13px;color:#4b5563}
.sidebar a.sub.active{color:var(--primary);font-weight:600}
.sidebar .badge{margin-left:auto;font-size:11px;color:var(--muted)}
.main{flex:1;margin-left:var(--side);padding:28px 36px 60px;min-width:0}
.content{max-width:940px;margin:0 auto}
.card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:22px 26px;margin-bottom:18px}
h1{font-size:26px;margin:0 0 6px}h2{font-size:21px;margin:0 0 10px}h3{font-size:17px;margin:22px 0 8px;color:#0f2a5f}
.muted{color:var(--muted)}.small{font-size:13px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:8px}
table{border-collapse:collapse;width:100%;margin:10px 0 16px;font-size:14px;display:block;overflow-x:auto}
table tbody{display:table;width:100%}
th,td{border:1px solid var(--border);padding:7px 10px;text-align:left;vertical-align:top}
th{background:#f3f4f6;white-space:nowrap}
.note,.warn,.example{border-radius:8px;padding:10px 14px;margin:14px 0;font-size:14px}
.note{background:var(--primary-50);border-left:4px solid var(--primary)}
.warn{background:var(--warn-bg);border-left:4px solid #f59e0b}
.example{background:#f5f3ff;border-left:4px solid #7c3aed}
.example p{margin:4px 0}
.tag{display:inline-block;background:#7c3aed;color:#fff;font-size:12px;border-radius:4px;padding:0 7px;margin-right:6px;font-weight:600}
.flow{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:10px 0 16px}
.flow span{background:var(--primary-50);border:1px solid var(--primary-100);border-radius:6px;padding:4px 10px;font-size:13px}
.flow span:not(:last-child)::after{content:" →";color:var(--muted)}
.hero{background:linear-gradient(135deg,#0f2a5f,#1d4ed8);color:#fff;border-radius:12px;padding:30px 30px;margin-bottom:20px}
.hero h1{font-size:28px}.hero p{margin:4px 0;opacity:.92}
.paths{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:20px}
.path-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:22px;display:flex;flex-direction:column}
.path-card h2{display:flex;align-items:center;gap:8px}
.path-card ul{padding-left:20px;margin:6px 0 14px;flex:1}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.mod-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px 18px;display:flex;flex-direction:column}
.mod-card h3{margin:0 0 6px;font-size:16px}
.mod-card p{font-size:13px;color:#4b5563;margin:0 0 10px;flex:1}
.mod-card .actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{display:inline-block;border:1px solid var(--primary);background:var(--primary);color:#fff;border-radius:7px;padding:7px 16px;font-size:14px;cursor:pointer;font-family:inherit;line-height:1.4}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.btn.ghost{background:#fff;color:var(--primary)}
.btn.sm{padding:4px 10px;font-size:13px}
.btn.danger{background:#fff;color:var(--bad);border-color:#fca5a5}
.btn:disabled{opacity:.5;cursor:not-allowed}
.progress{height:6px;background:#e5e7eb;border-radius:4px;overflow:hidden;margin:4px 0 10px}
.progress>div{height:100%;background:var(--ok)}
.pager{display:flex;justify-content:space-between;gap:10px;margin-top:26px;flex-wrap:wrap}
mark{background:#fde68a;padding:0 1px;border-radius:2px}
.search-item{padding:12px 0;border-bottom:1px solid var(--border)}
.search-item .t{font-weight:600;font-size:16px}
.search-item .s{font-size:13px;color:#4b5563}
.plan-phase{margin-bottom:18px}
.plan-phase label{display:flex;gap:10px;align-items:flex-start;padding:6px 4px;border-bottom:1px dashed var(--border);cursor:pointer}
.plan-phase label.done span{color:var(--muted);text-decoration:line-through}
.plan-phase input{margin-top:6px;transform:scale(1.15)}
.form-row{display:flex;gap:14px;flex-wrap:wrap;margin:12px 0}
.form-row label{display:flex;flex-direction:column;font-size:13px;color:var(--muted);gap:4px;flex:1;min-width:180px}
input[type=text],input[type=password],input[type=url],input[type=date],select{padding:8px 10px;border:1px solid #d1d5db;border-radius:7px;font-size:14px;font-family:inherit}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;font-size:14px}
.kv dt{color:var(--muted)}.kv dd{margin:0}
.exam-bar{position:sticky;top:var(--top);z-index:10;background:#fff;border:1px solid var(--border);border-radius:10px;padding:10px 18px;margin-bottom:14px;display:flex;align-items:center;gap:14px;box-shadow:0 2px 6px rgba(0,0,0,.05)}
.exam-bar .timer{font-variant-numeric:tabular-nums;font-weight:700;font-size:18px;margin-left:auto}
.exam-bar .timer.low{color:var(--bad)}
.q{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px 20px;margin-bottom:12px}
.q .qh{font-weight:600;margin-bottom:8px}
.q .qtype{display:inline-block;font-size:12px;background:var(--primary-100);color:var(--primary);border-radius:4px;padding:0 6px;margin-right:6px;font-weight:600}
.q .qdiff{font-size:12px;color:var(--muted);margin-left:6px;font-weight:400}
.opt{display:flex;gap:10px;align-items:flex-start;padding:6px 10px;border-radius:7px;cursor:pointer;border:1px solid transparent}
.opt:hover{background:#f9fafb}
.opt input{margin-top:6px}
.opt.correct{background:var(--ok-bg);border-color:#86efac}
.opt.wrongpick{background:var(--bad-bg);border-color:#fca5a5}
.q.is-wrong{border-left:4px solid var(--bad)}.q.is-right{border-left:4px solid var(--ok)}
.explain{margin-top:8px;background:#f9fafb;border-radius:7px;padding:8px 12px;font-size:14px}
.pill{display:inline-block;white-space:nowrap;border-radius:20px;padding:1px 10px;font-size:12px;font-weight:600}
.pill.ok{background:var(--ok-bg);color:var(--ok)}.pill.bad{background:var(--bad-bg);color:var(--bad)}.pill.warn{background:var(--warn-bg);color:var(--warn)}.pill.info{background:var(--primary-50);color:var(--primary)}
.cert{border:3px double #0f2a5f;border-radius:12px;padding:30px 34px;background:#fff;text-align:center;margin-bottom:18px}
.cert .ct{font-size:28px;font-weight:800;letter-spacing:6px;color:#0f2a5f;margin-bottom:4px}
.cert .score{font-size:54px;font-weight:800;line-height:1.2}
.cert .score.ok{color:var(--ok)}.cert .score.bad{color:var(--bad)}
.cert .kv{max-width:460px;margin:14px auto;text-align:left}
.cert table{display:table;margin:14px auto 0;max-width:560px}
.msg{border-radius:8px;padding:10px 14px;margin:12px 0;font-size:14px}
.msg.ok{background:var(--ok-bg);color:#065f46}.msg.bad{background:var(--bad-bg);color:#7f1d1d}.msg.warn{background:var(--warn-bg);color:#78350f}.msg.info{background:var(--primary-50);color:#1e3a8a}
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin:12px 0}
.stat{background:#f9fafb;border:1px solid var(--border);border-radius:8px;padding:10px 14px}
.stat b{display:block;font-size:22px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:10px 0}
.overlay{display:none}
@media (max-width:860px){
  .menu-btn{display:block}
  .brand-text{display:none}
  .sidebar{transform:translateX(-100%);transition:transform .2s;box-shadow:2px 0 10px rgba(0,0,0,.15)}
  body.nav-open .sidebar{transform:none}
  body.nav-open .overlay{display:block;position:fixed;inset:var(--top) 0 0 0;background:rgba(0,0,0,.3);z-index:15}
  .main{margin-left:0;padding:16px 12px 50px}
  .card{padding:16px}
  .paths{grid-template-columns:1fr}
  .hero{padding:22px 18px}.hero h1{font-size:22px}
  .cert{padding:20px 14px}.cert .score{font-size:42px}
  .q{padding:12px 14px}
}
@media print{
  .no-print,.topbar,.sidebar,.overlay{display:none!important}
  .main{margin:0;padding:0}.layout{padding:0}
  body{background:#fff}
  .card,.cert{break-inside:avoid}
}

#adTable td:first-child{white-space:nowrap}