:root{
  --bg:#0B1424; --bg2:#0E1A2E; --panel:#121F38; --panel2:#16263F;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.16);
  --text:#F2F5F9; --muted:#93A2BA; --dim:#5D6C84;
  --gold:#E3B341; --gold2:#F2C85E; --golddim:rgba(227,179,65,.13);
  --ok:#5BC47C; --bad:#E27272;
  --serif:"Noto Serif SC",Georgia,"Songti SC",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --radius:16px;
  --shadow:0 18px 50px rgba(2,8,20,.45);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans); color:var(--text); background:
    radial-gradient(1100px 520px at 50% -12%, rgba(227,179,65,.08), transparent 62%),
    radial-gradient(900px 460px at 95% 108%, rgba(74,124,205,.10), transparent 60%),
    var(--bg);
  min-height:100vh; -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(227,179,65,.35)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ===== 顶栏 ===== */
.topbar{
  position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;
  padding:14px 26px;background:rgba(11,20,36,.82);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.brand{font-family:var(--serif);font-weight:900;font-size:18px;letter-spacing:.06em;cursor:pointer;user-select:none}
.brand:hover{opacity:.85}
.brand b{color:var(--gold);font-weight:900}
.timer-chip{
  font-variant-numeric:tabular-nums;font-weight:500;font-size:14px;letter-spacing:.04em;
  padding:8px 16px;border:1px solid var(--line2);border-radius:999px;color:var(--muted);
  display:flex;align-items:center;gap:8px;
}
.timer-chip svg{width:15px;height:15px}
.timer-chip.warn{border-color:rgba(227,179,65,.55);color:var(--gold)}
.timer-chip.danger{border-color:rgba(226,114,114,.6);color:var(--bad);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.55}}

/* ===== 视图容器 ===== */
.view{display:none}
.view.active{display:block;animation:fadein .35s ease}
@keyframes fadein{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ===== 开始页 ===== */
#view-start{min-height:100vh;padding:60px 20px}
#view-start.active{display:flex;align-items:center;justify-content:center}
.start-inner{position:relative;max-width:680px;width:100%;text-align:center}
.rings{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);width:560px;max-width:88vw;opacity:.5;pointer-events:none;color:var(--gold)}
.rings circle{fill:none;stroke:currentColor;opacity:.07}
h1{font-family:var(--serif);font-weight:900;font-size:clamp(40px,7vw,64px);line-height:1.15;letter-spacing:.02em;margin-bottom:18px}
h1 .hl{color:var(--gold)}
.sub{font-size:clamp(15px,2.2vw,17px);color:var(--muted);line-height:1.9;max-width:520px;margin:0 auto 34px}
.chips{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.chip{
  border:1px solid var(--line2);background:rgba(255,255,255,.03);border-radius:999px;
  padding:10px 20px;font-size:14px;color:var(--text);
}
.chip b{color:var(--gold);font-weight:700;font-size:16px;margin-right:6px}
.rules{
  text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 30px;margin-bottom:38px;box-shadow:var(--shadow);
}
.rules h2{font-family:var(--serif);font-size:17px;font-weight:700;margin-bottom:16px;letter-spacing:.03em}
.rules h2::before{content:"";display:inline-block;width:10px;height:10px;background:var(--gold);margin-right:10px;border-radius:2px;transform:rotate(45deg)}
.rules ul{list-style:none}
.rules li{position:relative;padding:7px 0 7px 26px;color:var(--muted);font-size:14.5px;line-height:1.75}
.rules li::before{content:"";position:absolute;left:2px;top:16px;width:5px;height:5px;border-radius:50%;background:var(--gold);opacity:.8}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:16px;letter-spacing:.06em;
  padding:16px 44px;transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.btn:active{transform:scale(.98)}
.btn-gold{background:linear-gradient(180deg,var(--gold2),var(--gold));color:#1A1205;box-shadow:0 12px 32px rgba(227,179,65,.28)}
.btn-gold:hover{box-shadow:0 16px 40px rgba(227,179,65,.4);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--line2);color:var(--text);padding:16px 34px}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.foot{margin-top:34px;font-size:12.5px;color:var(--dim);line-height:1.8;max-width:520px;margin-left:auto;margin-right:auto}

/* ===== 测试页 ===== */
.progress-strip{height:3px;background:rgba(255,255,255,.07);position:sticky;top:63px;z-index:39}
.progress-strip i{display:block;height:100%;background:linear-gradient(90deg,var(--gold),var(--gold2));width:0%;transition:width .3s ease}
.test-wrap{max-width:1080px;margin:0 auto;padding:30px 22px 90px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start}
.qcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px 36px 30px}
.qmeta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}
.qnum{font-family:var(--serif);font-weight:900;font-size:15px;color:var(--gold);letter-spacing:.08em}
.qcat{font-size:12.5px;font-weight:500;padding:5px 12px;border-radius:999px;letter-spacing:.05em}
.qdiff{display:flex;gap:5px;margin-left:auto}
.qdiff span{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.14)}
.qdiff span.on{background:var(--gold)}
.qt{font-family:var(--serif);font-size:clamp(20px,2.6vw,25px);font-weight:700;line-height:1.65;margin-bottom:6px}
.stem{margin:20px 0 8px;color:var(--text)}
.seq{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.matrix{display:grid;gap:12px}
.matrix .mrow{display:flex;gap:16px;align-items:center}
.cell{width:54px;height:54px;display:flex;align-items:center;justify-content:center}
.cell .shp{width:44px;height:44px}
.qm{font-family:var(--serif);font-size:30px;color:var(--gold);font-weight:700}
.opts{display:grid;gap:12px;margin-top:24px}
.opt{
  display:flex;align-items:center;gap:14px;width:100%;text-align:left;
  border:1px solid var(--line2);border-radius:12px;padding:15px 18px;
  font-size:15.5px;color:var(--text);background:rgba(255,255,255,.02);
  transition:border-color .15s ease,background .15s ease,transform .15s ease;
}
.opt:hover{border-color:var(--gold);background:var(--golddim);transform:translateX(3px)}
.opt.sel{border-color:var(--gold);background:var(--golddim)}
.opt .rl{
  flex:none;width:30px;height:30px;border-radius:50%;border:1px solid var(--line2);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--muted);
}
.opt.sel .rl{background:var(--gold);border-color:var(--gold);color:#1A1205}
.opt .shp{width:38px;height:38px}
.opt-t{line-height:1.6}
.navrow{display:flex;justify-content:space-between;gap:14px;margin-top:30px}
.btn-nav{border:1px solid var(--line2);padding:13px 30px;border-radius:999px;font-size:14.5px;font-weight:600;letter-spacing:.05em;transition:all .15s ease}
.btn-nav:hover{border-color:var(--gold);color:var(--gold)}
.btn-next{background:linear-gradient(180deg,var(--gold2),var(--gold));color:#1A1205;border:none}
.btn-next:hover{color:#1A1205;transform:translateY(-2px);box-shadow:0 10px 26px rgba(227,179,65,.3)}
.btn-prev:disabled{opacity:.35;pointer-events:none}

/* 侧栏 */
.side{display:grid;gap:18px;position:sticky;top:86px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{font-family:var(--serif);font-size:15px;font-weight:700;margin-bottom:14px;letter-spacing:.03em}
.big-num{font-family:var(--serif);font-weight:900;font-size:40px;color:var(--gold);line-height:1}
.side .stat-row{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:12px}
.side .stat-row small{color:var(--muted);font-size:12.5px}
.pbar{height:8px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
.pbar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--gold),var(--gold2));transition:width .3s ease}
.palette{display:grid;grid-template-columns:repeat(8,1fr);gap:8px}
.pbtn{
  aspect-ratio:1;border-radius:9px;border:1px solid var(--line2);font-size:13px;font-weight:600;
  color:var(--muted);display:flex;align-items:center;justify-content:center;transition:all .12s ease;
}
.pbtn:hover{border-color:var(--gold);color:var(--gold)}
.pbtn.done{background:var(--golddim);border-color:rgba(227,179,65,.5);color:var(--gold)}
.pbtn.cur{border-color:var(--gold);background:var(--gold);color:#1A1205}
.btn-submit{width:100%;padding:14px;border-radius:12px;background:linear-gradient(180deg,var(--gold2),var(--gold));color:#1A1205;font-weight:700;font-size:15px;letter-spacing:.08em;transition:all .15s ease}
.btn-submit:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(227,179,65,.3)}

/* ===== 结果页 ===== */
.res-wrap{max-width:940px;margin:0 auto;padding:40px 22px 90px}
.hist-note{
  max-width:940px;margin:0 auto 18px;text-align:center;font-size:13px;color:var(--muted);
  border:1px dashed var(--line2);border-radius:10px;padding:10px 16px;
}
.res-head{display:grid;grid-template-columns:340px 1fr;gap:24px;align-items:stretch;margin-bottom:24px}
.gauge-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 20px 20px;display:flex;flex-direction:column;align-items:center}
.gauge-card svg{width:100%;max-width:320px}
.iq-num{font-family:var(--serif);font-weight:900;font-size:52px;color:var(--gold);line-height:1;letter-spacing:.02em}
.iq-label{font-size:12.5px;color:var(--muted);letter-spacing:.3em;margin-top:6px}
.band-tag{margin-top:14px;font-size:13.5px;font-weight:700;padding:7px 20px;border-radius:999px;border:1px solid rgba(227,179,65,.5);color:var(--gold);background:var(--golddim);letter-spacing:.1em}
.sum-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 28px;display:flex;flex-direction:column;justify-content:center}
.sum-card h2{font-family:var(--serif);font-size:20px;font-weight:900;margin-bottom:8px;letter-spacing:.02em}
.part-link{font-size:12.5px;color:var(--gold);letter-spacing:.06em;margin-bottom:6px}
.sum-card .band-desc{color:var(--muted);font-size:14.5px;line-height:1.85;margin-bottom:20px}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.kpi{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;padding:14px 12px;text-align:center}
.kpi b{display:block;font-family:var(--serif);font-weight:900;font-size:22px;color:var(--text);margin-bottom:3px}
.kpi span{font-size:12px;color:var(--muted)}
.res-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 28px;margin-bottom:24px}
.res-card h3{font-family:var(--serif);font-size:16px;font-weight:700;margin-bottom:18px;letter-spacing:.03em}
.res-grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}
.res-grid2 .res-card{margin-bottom:0}
.radar{width:100%;max-width:330px;margin:0 auto;display:block}
.radar-legend{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:12px}
.radar-legend span{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.radar-legend i{width:8px;height:8px;border-radius:50%;display:inline-block}
.ana-block{border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px}
.ana-block:last-child{margin-bottom:0}
.ana-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.ana-tag{font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:99px;letter-spacing:.05em;flex:none}
.ana-name{font-family:var(--serif);font-weight:700;font-size:15px}
.ana-pct{margin-left:auto;font-weight:700;font-size:14px;color:var(--gold);font-variant-numeric:tabular-nums}
.ana-desc{font-size:13.5px;color:var(--muted);line-height:1.85}
.diff-note{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.8;padding:12px 16px;background:rgba(255,255,255,.03);border-radius:10px}
.trend-delta{font-size:13.5px;color:var(--muted);margin-bottom:14px}
.trend{width:100%;height:auto;display:block}
details.faq{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:24px;overflow:hidden}
details.faq[open]{border-color:var(--line2)}
details.faq summary{list-style:none;cursor:pointer;padding:17px 22px;display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:15px;font-weight:700;color:var(--text)}
details.faq summary::-webkit-details-marker{display:none}
details.faq .arr{margin-left:auto;color:var(--dim);transition:transform .2s ease;font-family:var(--sans)}
details.faq[open] .arr{transform:rotate(90deg)}
.faq-body{padding:4px 22px 20px;border-top:1px dashed var(--line);font-size:13.5px;color:var(--muted);line-height:2}
.faq-body b{color:var(--gold)}
.cat-row{display:grid;grid-template-columns:64px 1fr 92px;align-items:center;gap:16px;padding:9px 0}
.cat-name{font-size:14px;font-weight:600}
.cat-bar{height:10px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
.cat-bar i{display:block;height:100%;border-radius:99px;transition:width .6s ease}
.cat-val{font-size:13px;color:var(--muted);text-align:right;font-variant-numeric:tabular-nums}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.legend span{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:7px}
.legend i{width:9px;height:9px;border-radius:2px;display:inline-block}
/* 答题回顾 */
.rev{display:grid;gap:12px}
.rev-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.rev-head h3{margin-bottom:0}
.rev-stats{font-size:13px;color:var(--muted);letter-spacing:.02em}
.rev-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px}
.rev-filters,.rev-cats{display:flex;flex-wrap:wrap;gap:6px}
.fbtn,.cbtn{
  font-size:12.5px;padding:6px 14px;border-radius:999px;border:1px solid var(--line2);
  color:var(--muted);transition:all .15s ease;background:rgba(255,255,255,.02);
}
.fbtn:hover,.cbtn:hover{border-color:var(--gold);color:var(--gold)}
.fbtn.on,.cbtn.on{background:var(--gold);border-color:var(--gold);color:#1A1205;font-weight:700}
.rev-ctrl{display:flex;gap:8px;margin-left:auto}
.rev-ctrl .btn-nav{padding:7px 16px;font-size:12.5px}
.rev-sum .ua{font-size:12px;color:var(--muted);font-weight:500}
.rev-sum .state.none{color:var(--dim)}
@media (max-width:640px){
  .rev-ctrl{margin-left:0;width:100%}
  .rev-ctrl .btn-nav{flex:1}
}
details.rev-item{background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:12px;overflow:hidden}
details.rev-item[open]{border-color:var(--line2)}
.rev-sum{display:flex;align-items:center;gap:12px;padding:15px 18px;cursor:pointer;list-style:none}
.rev-sum::-webkit-details-marker{display:none}
.rev-sum .rn{font-family:var(--serif);font-weight:700;font-size:14px;color:var(--gold);min-width:34px}
.rev-sum .rc{font-size:11.5px;padding:3px 10px;border-radius:99px;font-weight:500}
.rev-sum .state{margin-left:auto;font-size:12.5px;font-weight:600;display:flex;align-items:center;gap:6px}
.rev-sum .state .dot{width:8px;height:8px;border-radius:50%}
.rev-sum .arr{margin-left:8px;color:var(--dim);font-size:12px;transition:transform .2s ease}
details[open] .rev-sum .arr{transform:rotate(90deg)}
.rev-body{padding:4px 18px 20px;border-top:1px dashed var(--line)}
.rev-q{font-family:var(--serif);font-size:16px;font-weight:600;line-height:1.7;margin:16px 0 6px}
.rev-opts{display:grid;gap:8px;margin-top:14px}
.rop{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:10px;padding:11px 14px;font-size:14px;color:var(--muted)}
.rop .shp{width:32px;height:32px}
.rop .rl{flex:none;width:24px;height:24px;border-radius:50%;border:1px solid var(--line2);display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:700}
.rop-ok{border-color:rgba(91,196,124,.5);background:rgba(91,196,124,.08);color:var(--text)}
.rop-ok .rl{background:var(--ok);border-color:var(--ok);color:#0B1424}
.rop-bad{border-color:rgba(226,114,114,.55);background:rgba(226,114,114,.07);color:var(--text)}
.rop-bad .rl{background:var(--bad);border-color:var(--bad);color:#0B1424}
.tag{font-size:11px;font-weight:700;margin-left:auto;padding:3px 10px;border-radius:99px;flex:none}
.tag-ok{background:rgba(91,196,124,.15);color:var(--ok)}
.tag-bad{background:rgba(226,114,114,.15);color:var(--bad)}
.explain{margin-top:16px;background:rgba(227,179,65,.07);border-left:3px solid var(--gold);border-radius:0 10px 10px 0;padding:13px 16px;font-size:13.5px;color:var(--muted);line-height:1.8}
.explain b{color:var(--gold)}
.res-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px;margin-bottom:24px}

/* ===== 弹窗 & 提示 ===== */
.modal-mask{position:fixed;inset:0;z-index:100;background:rgba(4,9,18,.72);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;padding:20px}
.modal-mask.show{display:flex}
.modal{background:var(--panel2);border:1px solid var(--line2);border-radius:18px;max-width:420px;width:100%;padding:30px;box-shadow:var(--shadow)}
.modal h3{font-family:var(--serif);font-size:19px;font-weight:900;margin-bottom:12px}
.modal p{color:var(--muted);font-size:14.5px;line-height:1.8;margin-bottom:8px}
.modal .m-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:22px}
#toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);z-index:120;
  background:var(--panel2);border:1px solid var(--line2);border-radius:999px;
  padding:12px 26px;font-size:14px;color:var(--text);box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transition:all .3s ease;white-space:nowrap;
}
#toast.show{opacity:1;transform:translate(-50%,0)}
#toast.gold{color:var(--gold);border-color:rgba(227,179,65,.5)}

.shp{width:44px;height:44px;display:block;flex:none;color:var(--text)}
.hidden{display:none!important}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .test-wrap{grid-template-columns:1fr;padding-top:22px}
  .side{position:static;grid-template-columns:1fr 1fr}
  .side .card:first-child{grid-column:1/-1}
  .res-head{grid-template-columns:1fr}
  .palette{grid-template-columns:repeat(10,1fr)}
  .res-grid2{grid-template-columns:1fr}
  .kpis{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .qcard{padding:24px 20px}
  .navrow{flex-direction:column}
  .btn-nav{width:100%}
  .side{grid-template-columns:1fr}
  .kpis{grid-template-columns:1fr 1fr}
  .cat-row{grid-template-columns:52px 1fr 76px;gap:10px}
  .modal .m-actions{flex-direction:column-reverse}
  .modal .m-actions .btn{width:100%}
}