/* ====== 172 色盲色弱测试 · 石原氏色点盘：米白 + 墨绿 ====== */
.tsk.cbt{
  --tsk-bg:#f7f4ec;
  --tsk-card:#fffdf6;
  --tsk-card-2:#f3efe3;
  --tsk-ink:#262b22;
  --tsk-sub:#5f6857;
  --tsk-faint:#969d8c;
  --tsk-line:#e2ddcb;
  --tsk-line-2:#eee9d9;
  --tsk-brand:#3d7a5f;
  --tsk-brand-2:#b3652f;
  --tsk-brand-soft:#e7f0e9;
  --tsk-brand-ink:#2c5c46;
  --tsk-ok:#2f9e44;
  --tsk-ok-soft:#e6f4e9;
  --tsk-warn:#c9701e;
  --tsk-warn-soft:#faeedd;
  --tsk-bad:#c0392b;
  --tsk-bad-soft:#fae9e6;
  background:
    radial-gradient(680px 300px at 100% -10%, rgba(61,122,95,.08), transparent 60%),
    radial-gradient(500px 260px at -6% 6%, rgba(179,101,47,.07), transparent 58%),
    var(--tsk-bg);
}
:root[data-theme="dark"] .tsk.cbt{
  --tsk-bg:#14160f;
  --tsk-card:#1e211a;
  --tsk-card-2:#262a21;
  --tsk-ink:#eceee0;
  --tsk-sub:#b4bba9;
  --tsk-faint:#848a78;
  --tsk-line:#343a2c;
  --tsk-line-2:#2a2f24;
  --tsk-brand:#6fbf92;
  --tsk-brand-2:#e0955a;
  --tsk-brand-soft:rgba(111,191,146,.13);
  --tsk-brand-ink:#8fd3ab;
  --tsk-ok:#6fdc8c;
  --tsk-ok-soft:rgba(111,220,140,.12);
  --tsk-warn:#f0a35e;
  --tsk-warn-soft:rgba(240,163,94,.13);
  --tsk-bad:#ff9d92;
  --tsk-bad-soft:rgba(255,157,146,.12);
}
.cbt-hero{display:grid;grid-template-columns:minmax(0,1fr) 394px;gap:30px;padding:30px 0 24px;align-items:stretch;}
.cbt-hero-l{display:flex;flex-direction:column;}
.cbt-hero-l>.tsk-hs{flex:1 1 auto;}
.cbt-hero-l .tsk-h1 b{color:var(--tsk-brand-ink);}

/* 准备卡 */
.cbt-start{align-self:start;background:var(--tsk-card);border:1px solid var(--tsk-line);border-radius:14px;box-shadow:var(--tsk-shadow);overflow:hidden;}
.cbt-start-top{display:flex;justify-content:space-between;align-items:center;padding:15px 20px 12px;border-bottom:1px dashed var(--tsk-line);}
.cbt-start-top span{font-size:12.5px;font-weight:800;color:var(--tsk-ink);letter-spacing:.04em;}
.cbt-start-top i{font-style:normal;font:700 10px/1 var(--tsk-num);letter-spacing:.18em;color:var(--tsk-faint);}
.cbt-start-body{padding:12px 20px 18px;}
.cbt-prep{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;}
.cbt-prep li{position:relative;padding:9px 12px 9px 34px;background:var(--tsk-card-2);border:1px solid var(--tsk-line-2);border-radius:9px;font-size:12px;line-height:1.65;color:var(--tsk-sub);}
.cbt-prep li b{position:absolute;left:11px;top:9px;color:var(--tsk-brand-ink);font-weight:800;}
.cbt-err{margin-top:12px;padding:8px 12px;border-radius:8px;background:var(--tsk-bad-soft);border:1px solid var(--tsk-bad);color:var(--tsk-bad);font-size:12px;line-height:1.6;}
.cbt-start .tsk-btn-main{width:100%;margin-top:14px;background:linear-gradient(135deg,var(--tsk-brand),var(--tsk-brand-2));color:#fff;}
.cbt-start-foot{margin-top:10px;font-size:10.5px;line-height:1.7;color:var(--tsk-faint);}

/* 色点盘网格 */
.cbt-plates-sec{margin-top:6px;}
.cbt-plates{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:14px;}
.cbt-plates-empty{grid-column:1/-1;padding:26px;text-align:center;font-size:13px;color:var(--tsk-faint);background:var(--tsk-card);border:1px dashed var(--tsk-line);border-radius:12px;}
.cbt-plate{background:var(--tsk-card);border:1px solid var(--tsk-line);border-radius:12px;padding:12px;box-shadow:var(--tsk-shadow-sm);}
.cbt-plate canvas{display:block;width:100%;height:auto;border-radius:9px;background:#fff;}
.cbt-plate h4{margin:9px 0 2px;font-size:12.5px;font-weight:800;color:var(--tsk-ink);}
.cbt-plate p{font-size:10.5px;line-height:1.6;color:var(--tsk-faint);}
.cbt-ans{display:flex;align-items:center;gap:8px;margin-top:9px;flex-wrap:wrap;}
.cbt-ans input[type=text]{width:74px;height:30px;padding:0 9px;border:1px solid var(--tsk-line);border-radius:7px;background:var(--tsk-card-2);color:var(--tsk-ink);font:700 13px/30px var(--tsk-num);outline:none;}
.cbt-ans input[type=text]:focus{border-color:var(--tsk-brand);box-shadow:0 0 0 3px var(--tsk-brand-soft);}
.cbt-ans label{display:flex;align-items:center;gap:5px;font-size:11.5px;color:var(--tsk-sub);cursor:pointer;}
.cbt-ans input[type=checkbox],.cbt-ans input[type=radio]{accent-color:var(--tsk-brand);}
.cbt-submit{text-align:center;margin-top:16px;}
.cbt-submit .tsk-btn-main{background:linear-gradient(135deg,var(--tsk-brand),var(--tsk-brand-2));color:#fff;padding:11px 30px;}

/* 结果 */
.cbt-result{margin:4px 0 26px;background:var(--tsk-card);border:1px solid var(--tsk-line);border-radius:16px;box-shadow:var(--tsk-shadow);padding:22px 24px;}
.cbt-res-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));gap:11px;}
.cbt-res-card{background:var(--tsk-card-2);border:1px solid var(--tsk-line-2);border-radius:11px;padding:15px 17px;}
.cbt-res-card b{display:block;font:800 18px/1.3 var(--tsk-font);color:var(--tsk-ink);}
.cbt-res-card span{display:block;margin-top:5px;font-size:11.5px;font-weight:700;color:var(--tsk-faint);}
.cbt-res-card i{display:block;margin-top:3px;font-style:normal;font-size:10.5px;color:var(--tsk-sub);}
.cbt-res-card.cbt-main{background:var(--tsk-brand-soft);border-color:rgba(61,122,95,.3);}
.cbt-res-card.cbt-main b{color:var(--tsk-brand-ink);}
.cbt-alert{margin-top:13px;padding:12px 14px;border-radius:9px;background:var(--tsk-warn-soft);border:1px solid rgba(201,112,30,.3);font-size:12px;line-height:1.8;color:var(--tsk-sub);}
.cbt-alert b{color:var(--tsk-warn);}
.cbt-plan{margin-top:14px;overflow-x:auto;border-radius:11px;border:1px solid var(--tsk-line);}
.cbt-res-actions{display:flex;align-items:center;gap:10px;margin-top:14px;}
.cbt-res-actions .tsk-btn{border:1px solid var(--tsk-brand);color:var(--tsk-brand-ink);background:var(--tsk-brand-soft);}
.cbt-copy-tip{font-size:12px;color:var(--tsk-sub);}

.cbt-scroll{overflow-x:auto;border-radius:11px;box-shadow:var(--tsk-shadow-sm);}
.cbt-table{width:100%;min-width:560px;border-collapse:collapse;background:var(--tsk-card);}
.cbt-table.is-wide{border:1px solid var(--tsk-line);}
.cbt-table th,.cbt-table td{padding:10px 14px;font-size:12.5px;line-height:1.7;border-bottom:1px solid var(--tsk-line-2);text-align:left;}
.cbt-table thead th{background:var(--tsk-card-2);font-size:11px;font-weight:800;color:var(--tsk-brand-ink);letter-spacing:.04em;}
.cbt-table tbody tr:last-child td{border-bottom:0;}
.cbt-table tbody tr:hover td{background:var(--tsk-card-2);}
.cbt-strong{font-weight:800;color:var(--tsk-ink);}
.cbt-tag{display:inline-block;padding:2px 9px;border-radius:99px;background:var(--tsk-brand-soft);color:var(--tsk-brand-ink);font-size:11.5px;font-weight:800;}
.cbt-pass{color:var(--tsk-ok);font-weight:800;}
.cbt-fail{color:var(--tsk-bad);font-weight:800;}

.cbt-list{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(278px,1fr));gap:8px;}
.cbt-list li{position:relative;padding:12px 15px 12px 34px;background:var(--tsk-card);border:1px solid var(--tsk-line);border-radius:9px;font-size:12.5px;line-height:1.78;color:var(--tsk-sub);}
.cbt-list li::before{content:"◍";position:absolute;left:12px;top:10px;color:var(--tsk-brand);}

.cbt-myths{display:grid;grid-template-columns:repeat(auto-fit,minmax(278px,1fr));gap:11px;}
.cbt-myth{padding:16px 18px;background:var(--tsk-warn-soft);border:1px solid rgba(201,112,30,.28);border-radius:12px;}
.cbt-myth b{font-size:13px;color:var(--tsk-warn);}
.cbt-myth p{margin:6px 0 0;font-size:12.5px;line-height:1.8;color:var(--tsk-sub);}

@media (max-width:900px){
  .cbt-hero{grid-template-columns:1fr;gap:22px;}
  .cbt-start{align-self:stretch;}
  .cbt-plates{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));}
}