/* ======================================================================
   色盲模拟器 · 独立设计（光谱光学主题：青蓝 + 品红）
   浅色 = 光学白 + 棱镜光谱条；深色 = 暗室光谱
   ====================================================================== */
.cbs{
  --ink:#123033; --sub:#54707a; --faint:#9ab3ba;
  --bg:#f2f7f8; --card:#ffffff; --card2:#e9f2f4; --line:#d3e2e6; --line2:#e2ecef;
  --pri:#0d9488; --pri-2:#14b8a6; --pri-soft:#ddf2ef; --pri-ink:#0f5f58;
  --acc:#c026d3; --acc-soft:#f8e6fb; --acc-ink:#86198f;
  --amber:#b45309; --amber-soft:#fdf1e0;
  --red:#b42323; --red-soft:#fbe9e9;
  --ok:#156734;
  --r:14px;
  --shadow:0 1px 2px rgba(18,48,51,.05),0 10px 28px rgba(18,48,51,.07);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:15px; line-height:1.75;
  background:
    radial-gradient(860px 400px at 92% -130px, rgba(192,38,211,.08), transparent 60%),
    radial-gradient(700px 360px at -8% 130px, rgba(13,148,136,.10), transparent 60%),
    var(--bg);
  padding:0 16px 56px;
}
:root[data-theme="dark"] .cbs{
  --ink:#dcefef; --sub:#94b4bb; --faint:#5f828a;
  --bg:#0d1719; --card:#152225; --card2:#1b2c30; --line:#2a4248; --line2:#22383d;
  --pri:#2dd4bf; --pri-2:#5eead4; --pri-soft:rgba(45,212,191,.12); --pri-ink:#99f6e4;
  --acc:#e879f9; --acc-soft:rgba(232,121,249,.12); --acc-ink:#f0abfc;
  --amber:#fbbf24; --amber-soft:rgba(251,191,36,.10);
  --red:#f87171; --red-soft:rgba(248,113,113,.12);
  --ok:#4ade80;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.4);
}
.cbs *{box-sizing:border-box;}
.cbs b{font-weight:700;}
.cbs-wrap{max-width:1120px;margin:0 auto;}
.cbs code,.cbs input,.cbs textarea{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Consolas,monospace;}

/* ---------- Hero：棱镜光谱 ---------- */
.cbs-hero{margin-top:22px;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);background:var(--card);}
.cbs-prism{height:10px;background:linear-gradient(90deg,#7c3aed,#2563eb,#06b6d4,#10b981,#eab308,#f97316,#ef4444,#ec4899);}
.cbs-hero-b{padding:24px 28px 22px;display:flex;gap:22px;align-items:center;flex-wrap:wrap;}
.cbs-lens{width:96px;height:96px;border-radius:50%;flex:none;position:relative;
  background:conic-gradient(#ef4444,#eab308,#22c55e,#06b6d4,#3b82f6,#a855f7,#ef4444);
  box-shadow:0 0 0 4px var(--card),0 0 0 7px var(--pri);animation:cbsSpin 9s linear infinite;}
@keyframes cbsSpin{to{transform:rotate(360deg);}}
.cbs-lens::after{content:"";position:absolute;inset:26%;border-radius:50%;background:var(--card);box-shadow:inset 0 2px 6px rgba(0,0,0,.15);}
.cbs-hero h1{margin:0 0 6px;font-size:clamp(23px,3.4vw,31px);font-weight:900;line-height:1.3;}
.cbs-hero h1 span{color:var(--pri);}
.cbs-hero p{margin:0;color:var(--sub);font-size:14.5px;max-width:760px;}
.cbs-hero p em{font-style:normal;color:var(--pri-ink);font-weight:700;}

/* ---------- 工作台 ---------- */
.cbs-desk{display:grid;grid-template-columns:1fr 1.25fr;gap:18px;margin-top:20px;}
@media (max-width:920px){.cbs-desk{grid-template-columns:1fr;}}
.cbs-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;}
.cbs-card h2{margin:0 0 4px;font-size:16px;font-weight:800;display:flex;align-items:center;gap:8px;}
.cbs-card h2 .cbs-num{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:7px;background:var(--pri);color:#fff;font-size:12px;font-weight:800;}
:root[data-theme="dark"] .cbs-card h2 .cbs-num{color:#0d1719;}
.cbs-tip{font-size:12.5px;color:var(--sub);margin:0 0 12px;}
.cbs-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:10px 0;}
.cbs-chip{border:1px solid var(--line);background:var(--card2);color:var(--sub);border-radius:999px;padding:5px 14px;font-size:13px;cursor:pointer;font-weight:600;transition:all .15s;}
.cbs-chip:hover{border-color:var(--pri-2);color:var(--pri-ink);}
.cbs-chip.on{background:var(--pri);border-color:var(--pri);color:#fff;}
:root[data-theme="dark"] .cbs-chip.on{color:#0d1719;}
.cbs-btn{border:none;border-radius:10px;padding:9px 18px;font-size:14px;font-weight:800;cursor:pointer;transition:all .15s;}
.cbs-btn-go{background:var(--pri);color:#fff;}
:root[data-theme="dark"] .cbs-btn-go{color:#0d1719;}
.cbs-btn-go:hover{background:var(--pri-2);}
.cbs-btn-ghost{background:var(--card2);color:var(--pri-ink);border:1px solid var(--line);}
.cbs-btn-ghost:hover{border-color:var(--pri-2);}
.cbs-btn-acc{background:var(--acc);color:#fff;}
.cbs-btn-acc:hover{opacity:.88;}
.cbs-msg{margin-top:10px;font-size:13px;min-height:20px;font-weight:600;}
.cbs-msg.err{color:var(--red);}
.cbs-msg.ok{color:var(--pri);}

/* 单色输入 */
.cbs-hexrow{display:flex;gap:10px;align-items:center;}
.cbs-hex{flex:1;min-width:0;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--card2);color:var(--ink);font-size:14px;outline:none;}
.cbs-hex:focus{border-color:var(--pri-2);box-shadow:0 0 0 3px var(--pri-soft);}
.cbs-pick{width:46px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--card2);cursor:pointer;padding:3px;}
.cbs-swatch0{width:100%;height:74px;border-radius:10px;border:1px solid var(--line);margin-top:12px;display:flex;align-items:flex-end;justify-content:center;padding-bottom:6px;font-size:12px;font-weight:800;}
.cbs-quick{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px;}
.cbs-qc{width:26px;height:26px;border-radius:7px;border:1px solid rgba(0,0,0,.12);cursor:pointer;}

/* 图片输入 */
.cbs-drop{border:2px dashed var(--pri-2);border-radius:12px;background:var(--pri-soft);padding:22px 14px;text-align:center;font-size:13.5px;color:var(--pri-ink);cursor:pointer;transition:all .15s;}
.cbs-drop:hover{background:var(--card2);}
.cbs-file{display:none;}

/* ---------- 结果 ---------- */
.cbs-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:6px;}
@media (max-width:560px){.cbs-grid{grid-template-columns:1fr;}}
.cbs-res{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--card2);}
.cbs-res .cbs-band{height:64px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;text-shadow:0 1px 2px rgba(0,0,0,.25);}
.cbs-res .cbs-meta{padding:8px 12px;display:flex;align-items:center;justify-content:space-between;gap:8px;}
.cbs-res .cbs-meta b{font-size:13px;}
.cbs-res .cbs-meta small{display:block;font-size:11.5px;color:var(--sub);font-weight:400;}
.cbs-res .cbs-hexv{font-size:12.5px;color:var(--pri-ink);background:var(--pri-soft);border-radius:6px;padding:2px 8px;cursor:pointer;border:1px solid var(--line2);white-space:nowrap;}
.cbs-warn{margin-top:14px;border-radius:12px;padding:13px 16px;font-size:13.5px;border:1px solid var(--amber);background:var(--amber-soft);color:var(--amber);}
.cbs-warn b{display:block;margin-bottom:3px;}
.cbs-warn.good{border-color:var(--pri);background:var(--pri-soft);color:var(--pri-ink);}
.cbs-fix{margin-top:10px;border:1px solid var(--acc);background:var(--acc-soft);border-radius:12px;padding:13px 16px;font-size:13.5px;color:var(--acc-ink);}
.cbs-fix b{display:block;margin-bottom:6px;}
.cbs-fix .cbs-alt{display:inline-flex;align-items:center;gap:6px;margin-right:12px;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:4px 10px;font-size:12.5px;color:var(--ink);cursor:pointer;}
.cbs-fix .cbs-alt i{width:16px;height:16px;border-radius:4px;display:inline-block;border:1px solid rgba(0,0,0,.15);}

/* 图片结果 */
.cbs-imgwrap{margin-top:6px;}
.cbs-imgcell{margin-bottom:14px;}
.cbs-imgcell h3{margin:0 0 6px;font-size:13px;font-weight:800;color:var(--pri-ink);display:flex;align-items:center;justify-content:space-between;}
.cbs-imgcell h3 button{font-size:11.5px;padding:3px 10px;border-radius:7px;border:1px solid var(--line);background:var(--card2);color:var(--sub);cursor:pointer;font-weight:700;}
.cbs-imgcell h3 button:hover{color:var(--pri-ink);border-color:var(--pri-2);}
.cbs-imgcell canvas{width:100%;max-width:100%;display:block;border-radius:10px;border:1px solid var(--line);background:var(--card2);}
.cbs-empty{color:var(--faint);font-size:13.5px;text-align:center;padding:34px 0;}

/* ---------- FAQ ---------- */
.cbs-faq{margin-top:34px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:var(--shadow);}
.cbs-faq h2{margin:0 0 12px;font-size:19px;font-weight:900;}
.cbs-faq h3{margin:18px 0 6px;font-size:15.5px;font-weight:800;color:var(--pri-ink);}
.cbs-faq p{margin:0;color:var(--sub);font-size:14px;}
.cbs-faq p b{color:var(--ink);}

/* ===== 配色场景与强度模拟（新增） ===== */
.cbs2{margin-top:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;}
.cbs2 h2{margin:0 0 4px;font-size:16px;font-weight:800;}
.cbs2-tip{margin:0 0 10px;font-size:12.5px;color:var(--sub);}
.cbs2-presets{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;}
@media (max-width:820px){.cbs2-presets{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:480px){.cbs2-presets{grid-template-columns:1fr;}}
.cbs2-preset{text-align:left;border:1px solid var(--line);background:var(--card2);color:var(--ink);border-radius:10px;padding:7px 10px;cursor:pointer;font-size:12.5px;font-weight:700;line-height:1.45;transition:all .15s;}
.cbs2-preset:hover{border-color:var(--pri-2);}
.cbs2-preset.on{border-color:var(--pri);background:var(--pri-soft);}
.cbs2-preset small{display:flex;gap:3px;margin-top:4px;}
.cbs2-preset small i{width:14px;height:14px;border-radius:4px;border:1px solid rgba(0,0,0,.15);display:inline-block;}
.cbs2-row{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;margin:12px 0 10px;}
.cbs2-sev{display:flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--sub);}
.cbs2-sev input[type="range"]{width:150px;max-width:40vw;accent-color:var(--pri);}
.cbs2-sev b{color:var(--pri-ink);font-family:"JetBrains Mono",ui-monospace,Consolas,monospace;min-width:38px;}
.cbs2-viz svg{width:100%;height:auto;display:block;background:var(--card2);border:1px solid var(--line);border-radius:10px;}
.cbs2-note{fill:var(--faint);font-size:11.5px;text-anchor:middle;font-family:inherit;}
.cbs2-msg{margin-top:10px;font-size:13px;min-height:20px;font-weight:600;}
.cbs2-msg.err{color:var(--red);}
.cbs2-msg.ok{color:var(--pri);}