:root{
  --bg:#070b18;
  --bg2:#0d1428;
  --card:rgba(20,29,54,.82);
  --card2:rgba(28,39,70,.72);
  --line:rgba(120,150,220,.18);
  --txt:#e8eeff;
  --txt2:#9fb0d4;
  --txt3:#6d7ea6;
  --acc:#39d0ff;
  --acc2:#6a8cff;
  --ok:#38e0a5;
  --warn:#ffc857;
  --bad:#ff6b81;
  --radius:16px;
  font-synthesis-weight:none;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  background:
    radial-gradient(1100px 700px at 12% -10%, rgba(58,110,255,.28), transparent 60%),
    radial-gradient(900px 600px at 100% 0%, rgba(0,208,255,.18), transparent 55%),
    linear-gradient(180deg,var(--bg),var(--bg2) 60%,#070a14);
  color:var(--txt);
  font-family:"Microsoft YaHei UI","Microsoft YaHei","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit}
a{color:var(--acc)}

/* ---------------- topbar ---------------- */
.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:18px;
  padding:12px 26px;
  background:rgba(8,12,24,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.4px;white-space:nowrap}
.brand .bolt{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04101f;font-size:17px;
  box-shadow:0 6px 20px rgba(57,208,255,.35);
}
.brand small{display:block;font-weight:400;font-size:11px;color:var(--txt3);letter-spacing:0}
.nav{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav button{
  background:transparent;border:1px solid transparent;color:var(--txt2);
  padding:8px 14px;border-radius:10px;cursor:pointer;font-size:14px;transition:.18s;
}
.nav button:hover{background:rgba(120,160,255,.1);color:var(--txt)}
.nav button.active{background:rgba(57,208,255,.14);border-color:rgba(57,208,255,.35);color:#dff6ff}
.user-chip{display:flex;align-items:center;gap:8px;margin-left:8px;padding-left:12px;border-left:1px solid var(--line);font-size:13px;color:var(--txt2);white-space:nowrap}
.auth-wrap{display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:16px;align-items:start;max-width:960px;margin:24px auto 0}
@media (max-width:900px){.auth-wrap{grid-template-columns:1fr}}

main{max-width:1180px;margin:0 auto;padding:26px 26px 70px}
.view{display:none;animation:fade .25s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

h1{font-size:30px;margin:6px 0 8px;letter-spacing:.5px}
h2{font-size:19px;margin:0 0 14px}
h3{font-size:15px;margin:0 0 8px}
p{line-height:1.75;color:var(--txt2)}
.muted{color:var(--txt3);font-size:13px}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:0 18px 44px rgba(2,6,18,.4);
}
.card+.card{margin-top:16px}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){.g2,.g3,.g4{grid-template-columns:1fr}}

.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(38,60,130,.75),rgba(16,24,48,.85));
  border:1px solid rgba(120,160,255,.22);border-radius:22px;padding:30px 32px;
}
.hero:after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,208,255,.35),transparent 65%);
}
.hero h1{font-size:34px}
.hero p{max-width:660px;color:#c4d3f5}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);background:rgba(120,160,255,.09);color:var(--txt);
  padding:11px 20px;border-radius:12px;cursor:pointer;font-size:15px;transition:.18s;
}
.btn:hover{background:rgba(120,160,255,.18);transform:translateY(-1px)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn.primary{
  background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04101f;font-weight:700;border:none;
  box-shadow:0 12px 28px rgba(57,208,255,.28);
}
.btn.primary:hover{filter:brightness(1.06)}
.btn.ghost{background:transparent}
.btn.danger{background:rgba(255,107,129,.14);border-color:rgba(255,107,129,.42);color:#ffd7dd}
.btn.rec{background:linear-gradient(135deg,#ff6b81,#ff9a5a);color:#2a0a10;font-weight:700;border:none}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:9px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

.stat{background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.stat b{display:block;font-size:26px;letter-spacing:.5px}
.stat span{color:var(--txt3);font-size:12.5px}

.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  border:1px solid var(--line);background:rgba(120,160,255,.07);color:var(--txt2);
  padding:7px 14px;border-radius:999px;cursor:pointer;font-size:13.5px;transition:.16s;user-select:none;
}
.chip:hover{color:var(--txt)}
.chip.on{background:linear-gradient(135deg,rgba(57,208,255,.28),rgba(106,140,255,.28));border-color:rgba(57,208,255,.6);color:#eaf9ff;font-weight:600}

label.field{display:block;margin-bottom:14px}
label.field>span{display:block;font-size:13px;color:var(--txt2);margin-bottom:7px}
select,input[type=text],input[type=number],textarea{
  width:100%;background:rgba(9,14,28,.85);border:1px solid var(--line);color:var(--txt);
  border-radius:11px;padding:10px 12px;font-size:14px;font-family:inherit;outline:none;
}
select:focus,input:focus,textarea:focus{border-color:rgba(57,208,255,.6)}
textarea{resize:vertical;line-height:1.7}
.switch{display:flex;align-items:center;gap:10px;padding:9px 0;font-size:14px;color:var(--txt2);cursor:pointer}
.switch input{appearance:none;width:42px;height:23px;border-radius:99px;background:rgba(120,160,255,.2);position:relative;cursor:pointer;transition:.2s;flex:none}
.switch input:checked{background:linear-gradient(135deg,var(--acc),var(--acc2))}
.switch input:after{content:"";position:absolute;width:17px;height:17px;border-radius:50%;background:#eaf3ff;top:3px;left:3px;transition:.2s}
.switch input:checked:after{left:22px}

/* ---------------- 面试间 ---------------- */
.room-top{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.progress{flex:1;min-width:220px;height:8px;border-radius:99px;background:rgba(120,160,255,.16);overflow:hidden}
.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--acc),var(--acc2));width:0;transition:.4s}
.timer{font-variant-numeric:tabular-nums;font-size:15px;color:var(--txt2);border:1px solid var(--line);padding:6px 12px;border-radius:10px}
.timer.hot{color:#ffd7dd;border-color:rgba(255,107,129,.5);background:rgba(255,107,129,.12)}

.interviewer{display:flex;gap:18px;align-items:center}
.avatar{
  position:relative;width:78px;height:78px;border-radius:22px;flex:none;
  background:linear-gradient(135deg,#2b3f7d,#16204a);display:grid;place-items:center;
  border:1px solid rgba(140,175,255,.3);font-size:34px;
}
.avatar.speaking{animation:pulse 1.5s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(57,208,255,.5)}70%{box-shadow:0 0 0 20px rgba(57,208,255,0)}100%{box-shadow:0 0 0 0 rgba(57,208,255,0)}}
.wave{display:flex;gap:3px;align-items:flex-end;height:26px}
.wave i{width:4px;background:linear-gradient(180deg,var(--acc),var(--acc2));border-radius:99px;height:8px;transition:height .12s}
.state-txt{font-size:13px;color:var(--acc);letter-spacing:.4px}
.question-box{
  margin-top:16px;background:linear-gradient(135deg,rgba(30,46,96,.7),rgba(15,23,45,.6));
  border:1px solid rgba(120,160,255,.25);border-radius:16px;padding:22px 24px;
}
.question-box .q{font-size:20px;line-height:1.7;font-weight:600}
.tag{display:inline-block;font-size:12px;padding:3px 10px;border-radius:8px;background:rgba(120,160,255,.16);color:#c9d9ff;margin-right:6px}
.tag.cat{background:rgba(57,208,255,.16);color:#bff0ff}

.answer-area{margin-top:16px}
.meter{display:flex;gap:3px;height:34px;align-items:flex-end;margin:10px 0 6px}
.meter i{flex:1;background:linear-gradient(180deg,rgba(57,208,255,.9),rgba(106,140,255,.5));height:4px;border-radius:99px;transition:height .08s}
.live{min-height:120px;font-size:15px;line-height:1.8}
.hint{font-size:12.5px;color:var(--txt3)}

.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;padding:4px 9px;border-radius:8px;background:rgba(120,160,255,.14);color:var(--txt2)}
.badge.ok{background:rgba(56,224,165,.16);color:#a9f5da}
.badge.warn{background:rgba(255,200,87,.16);color:#ffe6a8}
.badge.bad{background:rgba(255,107,129,.16);color:#ffced6}

/* ---------------- 报告 ---------------- */
.score-hero{display:flex;gap:26px;align-items:center;flex-wrap:wrap}
.score-ring{position:relative;width:150px;height:150px;flex:none}
.score-ring svg{transform:rotate(-90deg)}
.score-ring .val{position:absolute;inset:0;display:grid;place-items:center;flex-direction:column}
.score-ring .val b{font-size:38px;line-height:1}
.score-ring .val span{font-size:12px;color:var(--txt3);margin-top:4px}

.qcard{border:1px solid var(--line);border-radius:14px;background:var(--card2);padding:16px 18px;margin-bottom:12px}
.qcard header{display:flex;gap:10px;align-items:flex-start;justify-content:space-between}
.qcard .qt{font-size:15.5px;font-weight:600;line-height:1.6}
.qcard .score{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums}
.kv{display:grid;grid-template-columns:76px 1fr;gap:6px 12px;font-size:13.5px;margin-top:10px}
.kv b{color:var(--txt3);font-weight:400}
.ul{margin:6px 0 0;padding-left:18px;font-size:13.5px;color:var(--txt2);line-height:1.8}
.ul li{margin-bottom:2px}
.ref{font-size:13px;color:var(--txt2);background:rgba(9,14,28,.6);border:1px dashed var(--line);border-radius:10px;padding:10px 12px;line-height:1.8;margin-top:8px}
details summary{cursor:pointer;color:var(--acc);font-size:13px;margin-top:10px;outline:none}

.list-item{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--card2);margin-bottom:9px}
.list-item.owner{border-color:rgba(57,208,255,.5)}
.list-item .qi{flex:1;font-size:14.5px;line-height:1.6}
.drop{
  border:2px dashed rgba(120,160,255,.4);border-radius:16px;padding:34px;text-align:center;
  background:rgba(120,160,255,.05);cursor:pointer;transition:.2s;
}
.drop:hover,.drop.over{background:rgba(57,208,255,.1);border-color:rgba(57,208,255,.6)}
.toast{
  position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);
  background:rgba(12,20,40,.95);border:1px solid rgba(57,208,255,.4);color:var(--txt);
  padding:12px 20px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:200;
  box-shadow:0 16px 40px rgba(0,0,0,.5);max-width:80vw;
}
.notice{
  margin-top:16px;padding:14px 18px;border-radius:14px;font-size:14px;line-height:1.7;
  background:rgba(255,200,87,.12);border:1px solid rgba(255,200,87,.42);color:#ffe6a8;
}
.modal{
  position:fixed;inset:0;background:rgba(4,8,18,.72);backdrop-filter:blur(3px);
  display:none;align-items:center;justify-content:center;z-index:300;padding:20px;
}
.modal.show{display:flex}
.modal-box{
  width:min(440px,100%);background:linear-gradient(160deg,rgba(28,39,70,.98),rgba(14,21,42,.98));
  border:1px solid rgba(120,160,255,.3);border-radius:18px;padding:24px 26px;
  box-shadow:0 24px 60px rgba(0,0,0,.55);
}
.toast.show{opacity:1;transform:translateX(-50%)}
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.25);border-top-color:var(--acc);border-radius:50%;display:inline-block;animation:spin .8s linear infinite;vertical-align:-2px}
@keyframes spin{to{transform:rotate(360deg)}}

@media print{
  body{background:#fff;color:#111}
  .topbar,.nav,.btn,.no-print{display:none!important}
  .card,.qcard{background:#fff;border-color:#ddd;box-shadow:none;color:#111}
  .muted,.kv b,p{color:#444}
  .view{display:none!important}
  #view-report{display:block!important}
}