/* ====== 03 年龄问题计算器 · 青瓷绿 + 蜜桃橙 ====== */
.tsk.age{
  --tsk-bg:#f3f8f6;
  --tsk-card:#ffffff;
  --tsk-card-2:#f6fbf9;
  --tsk-ink:#19322e;
  --tsk-sub:#4e6a64;
  --tsk-faint:#879f99;
  --tsk-line:#d9e8e3;
  --tsk-line-2:#eaf4f0;
  --tsk-brand:#1f7a70;
  --tsk-brand-2:#135c54;
  --tsk-brand-soft:#e2f2ee;
  --tsk-brand-ink:#135c54;
  --tsk-peach:#e8845c;
  --tsk-peach-soft:#fdefe8;
  --tsk-shadow-sm:0 1px 2px rgba(25,50,46,.05),0 8px 18px rgba(25,50,46,.06);
  --tsk-shadow:0 2px 8px rgba(25,50,46,.08),0 22px 48px rgba(25,50,46,.10);
  background:
    radial-gradient(620px 300px at 100% -10%, rgba(232,132,92,.13), transparent 64%),
    radial-gradient(560px 280px at -6% 16%, rgba(31,122,112,.10), transparent 62%),
    var(--tsk-bg);
}
:root[data-theme="dark"] .tsk.age{
  --tsk-bg:#0d1615;
  --tsk-card:#14201e;
  --tsk-card-2:#1a2926;
  --tsk-ink:#e6f2ef;
  --tsk-sub:#a2bbb4;
  --tsk-faint:#77948d;
  --tsk-line:#253733;
  --tsk-line-2:#1e2e2a;
  --tsk-brand:#5fc0b2;
  --tsk-brand-2:#8ad7cc;
  --tsk-brand-soft:rgba(95,192,178,.14);
  --tsk-brand-ink:#8ad7cc;
  --tsk-peach:#ffa885;
  --tsk-peach-soft:rgba(255,168,133,.13);
}

/* ---- 首屏等高栅格 ---- */
.age-hero{display:grid;grid-template-columns:minmax(0,1fr) 394px;gap:30px;padding:30px 0 24px;align-items:stretch}
.age-hero-l{display:flex;flex-direction:column}
.age-hero-l>.tsk-hs{flex:1 1 auto}
@media (max-width:900px){.age-hero{grid-template-columns:1fr}}
.age-hero-l .tsk-h1 b{color:var(--tsk-peach)}

/* ---- 时光卡 ---- */
.age-card{position:relative;background:var(--tsk-card);border:1px solid var(--tsk-line);border-radius:18px;
  box-shadow:var(--tsk-shadow);padding:18px 20px 15px;overflow:hidden}
.age-card::before{content:"";position:absolute;right:-42px;top:-42px;width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle,var(--tsk-peach-soft) 0,transparent 70%);pointer-events:none}
.age-card-hd{display:flex;align-items:center;gap:10px;position:relative}
.age-clock{width:36px;height:36px;flex:none;display:grid;place-items:center;border-radius:50%;
  background:var(--tsk-brand-soft);font-size:17px;border:1px solid rgba(31,122,112,.2)}
.age-card-hd b{display:block;font-size:14.5px;font-weight:800}
.age-card-hd small{display:block;font-size:11.5px;color:var(--tsk-faint)}

.age-tabs{display:flex;gap:5px;margin-top:13px;padding:4px;border-radius:11px;background:var(--tsk-card-2);
  border:1px solid var(--tsk-line-2)}
.age-tab{flex:1;border:0;background:transparent;border-radius:8px;color:var(--tsk-sub);cursor:pointer;
  font:700 11.5px/1.4 var(--tsk-font);padding:8px 4px;transition:.16s;white-space:nowrap}
.age-tab:hover{color:var(--tsk-brand-ink)}
.age-tab.on{background:var(--tsk-brand);color:#fff;box-shadow:0 4px 10px rgba(31,122,112,.24)}
:root[data-theme="dark"] .age-tab.on{color:#0d1615}

.age-panel{padding-top:13px}
.age-row2{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.age-field{margin-top:9px}
.age-field label{display:block;margin-bottom:4px;font-size:11.5px;font-weight:800;color:var(--tsk-sub)}
.age-field input{width:100%;height:39px;border:1.5px solid var(--tsk-line);border-radius:9px;
  background:var(--tsk-card-2);color:var(--tsk-ink);font:800 14.5px/39px var(--tsk-num);padding:0 11px;outline:none;transition:.15s}
.age-field input:focus{border-color:var(--tsk-brand);box-shadow:0 0 0 3px var(--tsk-brand-soft)}
.age-field.bad input{border-color:var(--tsk-peach);background:var(--tsk-peach-soft)}
.age-note{margin:10px 0 0;padding:7px 10px;border-radius:7px;background:var(--tsk-card-2);
  border-left:2px solid var(--tsk-brand);font-size:10.8px;line-height:1.7;color:var(--tsk-faint)}
.age-err{display:none;margin:9px 0 0;padding:8px 11px;border-radius:8px;background:var(--tsk-peach-soft);
  color:var(--tsk-peach);font-size:12px;font-weight:700;line-height:1.65}
.age-err.show{display:block}
.age-acts{display:flex;gap:7px;margin-top:13px}
.age-acts .tsk-btn{padding:9px 13px;font-size:12.5px}
.age-acts .tsk-btn-main{flex:1;border:0;background:linear-gradient(135deg,var(--tsk-brand),var(--tsk-brand-2))}
.age-card-foot{margin:9px 0 0;font-size:10.5px;line-height:1.65;color:var(--tsk-faint)}

/* ---- 结果 ---- */
.age-result{margin:6px 0 28px;background:var(--tsk-card);border:1px solid var(--tsk-line);
  border-radius:18px;box-shadow:var(--tsk-shadow);padding:22px 24px 20px}
.age-res-hd{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.age-res-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px}
.age-res-card{background:var(--tsk-card-2);border:1px solid var(--tsk-line-2);border-radius:12px;padding:15px 17px 13px}
.age-res-card b{display:block;font:800 27px/1.12 var(--tsk-num);color:var(--tsk-ink);font-variant-numeric:tabular-nums}
.age-res-card span{display:block;margin-top:4px;font-size:11.5px;font-weight:800;color:var(--tsk-faint)}
.age-res-card i{display:block;margin-top:2px;font-style:normal;font-size:10.5px;color:var(--tsk-sub)}
.age-res-card.age-main-card{background:var(--tsk-peach-soft);border-color:rgba(232,132,92,.28)}
.age-res-card.age-main-card b{color:var(--tsk-peach)}
.age-alert{margin-top:13px;padding:11px 14px;border-radius:9px;background:var(--tsk-brand-soft);
  border-left:3px solid var(--tsk-brand);font-size:12.5px;line-height:1.8;color:var(--tsk-sub)}
.age-alert.is-bad{background:var(--tsk-peach-soft);border-left-color:var(--tsk-peach)}

/* ---- 时间轴 ---- */
.age-timeline{margin-top:18px;padding:16px 18px;border-radius:12px;border:1px dashed var(--tsk-line);
  background:linear-gradient(180deg,var(--tsk-card-2),var(--tsk-card))}
.age-timeline h3{margin:0 0 14px;color:var(--tsk-brand-ink)}
.age-tl{display:grid;grid-template-columns:1fr 110px 1fr;align-items:center;gap:8px}
.age-node{position:relative;padding:12px 14px 11px;border-radius:11px;background:var(--tsk-card);
  border:1px solid var(--tsk-line);box-shadow:var(--tsk-shadow-sm)}
.age-node .age-dot{position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:11px;height:11px;
  border-radius:50%;background:var(--tsk-brand);border:2px solid var(--tsk-card)}
.age-node-later .age-dot{background:var(--tsk-peach)}
.age-node b{display:block;font-size:12px;font-weight:800;color:var(--tsk-brand-ink);text-align:center}
.age-node-later b{color:var(--tsk-peach)}
.age-node p{margin-top:4px;font-size:12px;line-height:1.7;color:var(--tsk-sub);text-align:center}
.age-link{position:relative;text-align:center}
.age-link i{display:block;height:2px;background:linear-gradient(90deg,var(--tsk-brand),var(--tsk-peach));border-radius:99px}
.age-link em{display:block;margin-top:5px;font-style:normal;font-size:10.5px;line-height:1.5;color:var(--tsk-faint)}
.age-steps-wrap{margin-top:17px;padding-top:15px;border-top:1px dashed var(--tsk-line)}
.age-steps{margin:9px 0 0;padding:0;list-style:none;counter-reset:agestep;display:grid;gap:6px}
.age-steps li{counter-increment:agestep;position:relative;padding:8px 12px 8px 38px;border-radius:8px;
  background:var(--tsk-card-2);border:1px solid var(--tsk-line-2);font-size:12.8px;line-height:1.78;color:var(--tsk-sub)}
.age-steps li::before{content:counter(agestep);position:absolute;left:10px;top:8px;width:19px;height:19px;
  border-radius:50%;background:var(--tsk-brand);color:#fff;font:800 10.5px/19px var(--tsk-num);text-align:center}
.age-steps li b{color:var(--tsk-ink)}
.age-sub{margin-left:auto;font-size:11.5px;font-weight:700;color:var(--tsk-faint)}

/* ---- 公式卡 ---- */
.age-fmls{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:11px}
.age-fml{background:var(--tsk-card);border:1px solid var(--tsk-line);border-radius:12px;
  box-shadow:var(--tsk-shadow-sm);padding:16px 17px;position:relative;overflow:hidden}
.age-fml::after{content:"";position:absolute;right:-18px;top:-18px;width:54px;height:54px;border-radius:50%;
  background:var(--tsk-brand-soft)}
.age-tag{position:relative;z-index:1;display:inline-block;padding:2px 9px;border-radius:99px;
  background:var(--tsk-brand-soft);color:var(--tsk-brand-ink);font:800 11px/1.7 var(--tsk-num)}
.age-fml p{margin:8px 0;font-size:12.5px;line-height:1.75;color:var(--tsk-sub)}
.age-fml code{position:relative;z-index:1;display:block;padding:8px 10px;border-radius:7px;
  background:var(--tsk-card-2);color:var(--tsk-peach);font:800 11.5px/1.7 var(--tsk-num);word-break:break-all}

/* ---- 变式 ---- */
.age-var-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:11px}
.age-var-tip{font-size:11.5px;color:var(--tsk-faint)}
.age-variants{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:9px}
.age-variants .tsk-empty{grid-column:1/-1;background:var(--tsk-card);border:1px dashed var(--tsk-line);border-radius:10px}
.age-var-item{background:var(--tsk-card);border:1px solid var(--tsk-line);border-left:3px solid var(--tsk-brand);
  border-radius:10px;padding:12px 14px;box-shadow:var(--tsk-shadow-sm)}
.age-var-item .no{display:inline-block;margin-right:6px;padding:1px 7px;border-radius:99px;
  background:var(--tsk-brand-soft);color:var(--tsk-brand-ink);font:800 10.5px/1.8 var(--tsk-num)}
.age-var-item .q{font-size:12.8px;line-height:1.8;color:var(--tsk-sub)}
.age-var-item .q b{color:var(--tsk-ink)}
.age-var-item .ans{margin-top:6px;padding-top:6px;border-top:1px dashed var(--tsk-line-2);
  font-size:12px;line-height:1.7;color:var(--tsk-peach);font-weight:700}
.age-var-item .ans.is-hidden{display:none}
.age-var-item .ans b{color:var(--tsk-peach)}

/* ---- 自测 ---- */
.age-quiz{background:var(--tsk-card);border:1px solid var(--tsk-line);border-left:4px solid var(--tsk-peach);
  border-radius:12px;box-shadow:var(--tsk-shadow-sm);padding:17px 19px}
.age-question{margin:0 0 10px;font-size:14px;line-height:1.85;font-weight:700;color:var(--tsk-ink)}
.age-quiz-row{display:flex;flex-wrap:wrap;gap:8px}
.age-quiz-row input{width:150px;height:39px;padding:0 11px;border:1.5px solid var(--tsk-line);border-radius:8px;
  background:var(--tsk-card-2);color:var(--tsk-ink);font:800 14px/39px var(--tsk-num);outline:none}
.age-quiz-row input:focus{border-color:var(--tsk-brand);box-shadow:0 0 0 3px var(--tsk-brand-soft)}
.age-quiz-fb{margin:8px 0 0;min-height:19px;font-size:12.5px;font-weight:800}
.age-quiz-fb.ok{color:var(--tsk-brand-ink)}
.age-quiz-fb.no{color:var(--tsk-peach)}

@media (max-width:900px){
  .age-hero{grid-template-columns:1fr;gap:22px}
  .age-tl{grid-template-columns:1fr;gap:16px}
  .age-link{display:flex;align-items:center;gap:8px}
  .age-link i{flex:1}
  .age-link em{margin-top:0;flex:none}
}
@media (max-width:600px){
  .age-res-grid{grid-template-columns:1fr 1fr}
  .age-acts{flex-wrap:wrap}
  .age-acts .tsk-btn-main{flex:1 0 100%}
  .age-quiz-row input{flex:1 0 100%;width:100%}
}

/* ==========================================================
   *  细节打磨：键盘可达性、长数字换行、打印与动效降级
   *  说明：以下规则都限定在 .tsk 工具作用域内，不影响站内其它页面
   * ========================================================== */
.age .tsk-btn:focus-visible,
.age .age-tab:focus-visible,
.age .age-seg button:focus-visible{
    outline:2px solid var(--tsk-brand);
    outline-offset:2px;
}
.age input[type="number"]::-webkit-outer-spin-button,
.age input[type="number"]::-webkit-inner-spin-button{
    -webkit-appearance:none;
    margin:0;
}
.age input[type="number"]{
    -moz-appearance:textfield;
    appearance:textfield;
}
.age input::placeholder,
.age textarea::placeholder{
    color:var(--tsk-faint);
    opacity:1;
}
.age ::selection{
    background:var(--tsk-brand-soft);
    color:var(--tsk-brand-ink);
}
.age .age-res-card b,
.age .age-main-card b{
    font-variant-numeric:tabular-nums lining-nums;
    letter-spacing:-.01em;
    line-height:1.15;
}
.age .age-res-card b{
    overflow-wrap:anywhere;
}
.age .age-var-item .q,
.age .age-question,
.age .age-steps li{
    overflow-wrap:break-word;
    word-break:normal;
}
.age .age-table-wrap{
    scrollbar-width:thin;
    scrollbar-color:var(--tsk-line) transparent;
}
.age .age-table-wrap::-webkit-scrollbar{
    height:8px;
}
.age .age-table-wrap::-webkit-scrollbar-thumb{
    background:var(--tsk-line);
    border-radius:99px;
}
.age .age-table-wrap::-webkit-scrollbar-track{
    background:transparent;
}
.age .age-var-toolbar .tsk-btn,
.age .age-acts .tsk-btn,
.age .age-quiz-row .tsk-btn{
    touch-action:manipulation;
}
.age .age-var-item{
    transition:border-color .15s,box-shadow .15s;
}
.age .age-var-item:hover{
    border-color:var(--tsk-brand);
    box-shadow:var(--tsk-shadow-sm);
}
.age .age-panel:not(.on){
    display:none;
}
.age .age-result[hidden]{
    display:none;
}
.age .age-result{
    animation:age-rise .28s ease both;
}
@keyframes age-rise{
    from{opacity:0;transform:translateY(8px)}
    to{opacity:1;transform:none}
}
.age .age-alert b{
    font-weight:800;
}
.age .age-err.show{
    animation:age-shake .22s ease;
}
@keyframes age-shake{
    0%,100%{transform:translateX(0)}
    25%{transform:translateX(-3px)}
    75%{transform:translateX(3px)}
}
.age .tsk-empty{
    padding:18px 16px;
    text-align:center;
    color:var(--tsk-faint);
    font-size:12.5px;
    line-height:1.8;
}
.age .age-quiz-row input:disabled,
.age .age-acts .tsk-btn:disabled{
    opacity:.55;
    cursor:not-allowed;
}
.age .age-res-grid > .age-res-card:last-child:nth-child(odd){
    grid-column:span 2;
}
@media (max-width:420px){
    .age .age-res-grid{
        grid-template-columns:1fr;
    }
    .age .age-res-grid > .age-res-card:last-child:nth-child(odd){
        grid-column:auto;
    }
    .age .age-row2,
    .age .age-row3{
        grid-template-columns:1fr;
    }
}
@media (prefers-reduced-motion:reduce){
    .age *,
    .age *::before,
    .age *::after{
        animation-duration:.001ms!important;
        animation-iteration-count:1!important;
        transition-duration:.001ms!important;
        scroll-behavior:auto!important;
    }
}
@media print{
    .age{
        background:#fff!important;
        color:#111!important;
    }
    .age .tsk-crumb-bar,
    .age .age-acts,
    .age .age-var-toolbar,
    .age .age-quiz,
    .age .age-tabs{
        display:none!important;
    }
    .age .age-result{
        box-shadow:none!important;
        border:1px solid #ddd!important;
        animation:none!important;
    }
    .age .age-res-grid{
        grid-template-columns:repeat(2,minmax(0,1fr))!important;
    }
    .age .age-var-item{
        break-inside:avoid;
    }
    .age .age-table{
        font-size:11px!important;
    }
}