/* 冷氣噸數計算器頁（aircon-capacity.html）。沿用 theme-site／type／tp 的色票與字級，只加本頁零件。 */
.cap-page{--c-ink:#1D2A36;--c-ink2:#45525E;--c-mute:#5F676C;--c-sky:#2C6AA8;--c-sky-h:#23578C;--c-line:#E3DCC4;--c-line2:#DCD5BA;
  --c-bg:#FBF9EF;--c-bg2:#F4F0E1;--c-hi:#F4F0B8;--c-band:#E6EFF8;--mono:var(--f-mono,'IBM Plex Mono',monospace)}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.cap-page :focus-visible{outline:2px solid var(--c-sky);outline-offset:3px;border-radius:6px}

/* ---------- 頁首：公式字條 ---------- */
.cap-head .ph-title{max-width:16em}
.cap-page .cap-head{padding-bottom:clamp(28px,4vw,40px)}
.cap-formula{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 12px;margin-top:clamp(22px,3vw,32px);
  font:400 clamp(17px,2vw,22px)/1.4 var(--mono);color:var(--c-ink);letter-spacing:-.01em}
.cap-formula span{border-bottom:1px solid var(--c-line2);padding-bottom:2px}
.cap-formula i{font-style:normal;color:var(--c-sky)}
.cap-formula b{font-weight:500;background:var(--c-hi);color:#4A4510;padding:0 8px;border-radius:4px}

/* ---------- 計算器版面 ---------- */
.cap-calc{padding-top:clamp(40px,5vw,56px)!important}
.cap-calc .sec-label-row{margin-bottom:clamp(20px,3vw,32px)}
.cap-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,400px);gap:clamp(20px,3vw,36px);align-items:start}
.cap-inputs{display:flex;flex-direction:column;gap:14px;min-width:0}
.cap-card{background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:clamp(18px,2.4vw,28px)}
.cap-h3{display:flex;align-items:baseline;gap:12px;font:700 var(--t-sub,24px)/1.4 var(--f-serif);color:var(--c-ink);margin:0 0 6px}
.cap-k{font:500 12px/1 var(--mono);letter-spacing:.08em;color:var(--c-sky)}
.cap-noscript{background:#fff;border:1px solid var(--c-line);border-left:3px solid var(--c-sky);border-radius:12px;padding:16px 20px;margin-bottom:16px;line-height:1.9}

.fld{padding:16px 0;border-top:1px solid var(--c-line)}
.cap-h3+.fld,.cap-card>.hint+.ap-list{border-top:0}
.fld label,.fld legend{font-weight:500;font-size:16px;color:var(--c-ink)}
.fld-row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.fld-row>div:first-child{min-width:0}
.hint{font-size:14px;line-height:1.7;color:var(--c-mute);margin-top:4px;max-width:34em}
.err{font-size:14px;color:#A3302A;margin-top:6px}
.in-u{display:flex;align-items:center;border:1px solid var(--c-line2);border-radius:12px;background:var(--c-bg);transition:border-color .2s,box-shadow .2s}
.in-u:focus-within{border-color:var(--c-sky);box-shadow:0 0 0 3px rgba(44,106,168,.15)}
.in-u input{flex:1;min-width:0;border:0;background:none;font:400 16px/1 var(--mono);color:var(--c-ink);padding:12px 4px 12px 14px;outline:none;-moz-appearance:textfield}
.in-u input::-webkit-inner-spin-button,.st input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.in-u .u{font:500 13px/1 var(--mono);color:var(--c-mute);padding:0 14px 0 4px}
.in-u.sm{width:132px;flex:none}
.fld-ping .in-u{margin-top:10px;max-width:280px}
.fld-ping .in-u input{font-size:clamp(28px,3.4vw,36px);padding:14px 4px 14px 18px;letter-spacing:-.02em}
.fld-ping .in-u .u{font-size:16px}
input[aria-invalid="true"]{color:#A3302A}

.lw-btn{margin-top:12px;background:none;border:0;padding:10px 0;font:500 15px/1.4 var(--f-sans,inherit);color:var(--c-sky);cursor:pointer;
  text-decoration:underline;text-underline-offset:4px;min-height:44px}
.lw{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin-top:6px;padding:14px;border-radius:12px;background:var(--c-bg2)}
.lw[hidden]{display:none}
.lw label{font-size:14px}
.lw .in-u.sm{width:104px;background:#fff}
.lw-x{font:400 14px/1 var(--mono);color:var(--c-mute)}
.lw output{flex-basis:100%;font:500 14px/1.6 var(--mono);color:var(--c-sky);min-height:1.6em}

/* 數量加減 */
.st{display:flex;align-items:center;flex:none;border:1px solid var(--c-line2);border-radius:999px;background:var(--c-bg)}
.st-b{width:44px;height:44px;border:0;background:none;border-radius:50%;font:400 20px/1 var(--mono);color:var(--c-sky);cursor:pointer;transition:background .15s}
.st-b:hover{background:rgba(44,106,168,.08)}
.st input{width:44px;height:44px;padding:0;border:0;background:none;text-align:center;font:500 16px/1 var(--mono);color:var(--c-ink);-moz-appearance:textfield;outline:none}

/* 開關 */
.sw{flex:none;position:relative;width:60px;height:44px;padding:0;border:0;background:none;cursor:pointer;margin:0}
.sw::before{content:"";position:absolute;left:2px;top:6px;width:56px;height:32px;box-sizing:border-box;border-radius:999px;border:1px solid var(--c-line2);background:var(--c-bg2);transition:background .2s,border-color .2s}
.sw span{position:absolute;top:10px;left:6px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(29,42,54,.25);transition:transform .2s cubic-bezier(.3,.7,.2,1)}
.sw[aria-checked="true"]::before{background:var(--c-sky);border-color:var(--c-sky)}
.sw[aria-checked="true"] span{transform:translateX(24px)}
.cap-page .sw:focus-visible{outline:0}
.cap-page .sw:focus-visible::before{outline:2px solid var(--c-sky);outline-offset:3px}
.fld-sub{border-top:0;padding-top:0}

.chk{display:flex;align-items:center;gap:12px;border-top:0;padding-top:0}
.chk input{width:22px;height:22px;accent-color:var(--c-sky);flex:none}
.chk label{font-size:15px;font-weight:400;min-height:44px;display:flex;align-items:center}
.kit{border:0;border-top:1px solid var(--c-line);margin:0}
.kit legend{padding:16px 0 10px;float:left;width:100%}
.seg{clear:both;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:4px;background:var(--c-bg2);border-radius:14px}
.seg{position:relative}
.seg input{position:absolute;width:1px;height:1px;margin:0;opacity:0;pointer-events:none;clip:rect(0 0 0 0)}
.seg label{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:52px;padding:6px 8px;border-radius:10px;
  font-size:14px;font-weight:500;color:var(--c-ink2);cursor:pointer;transition:background .2s,color .2s;line-height:1.35}
.seg label b{font:500 12px/1.4 var(--mono);color:var(--c-sky)}
.seg input:checked+label{background:#fff;color:var(--c-ink);box-shadow:0 1px 3px rgba(29,42,54,.12)}
.seg input:focus-visible+label{outline:2px solid var(--c-sky);outline-offset:2px}

/* 進階、計算過程：可摺疊 */
.cap-adv>summary,.cap-steps>summary{list-style:none;cursor:pointer;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;position:relative;padding-right:44px;min-height:44px}
.cap-adv>summary::-webkit-details-marker,.cap-steps>summary::-webkit-details-marker,.qa>summary::-webkit-details-marker{display:none}
.cap-adv>summary .cap-h3,.cap-steps>summary .cap-h3{margin:0}
.adv-s{font-size:14px;color:var(--c-mute)}
.cap-adv>summary::after,.cap-steps>summary::after,.qa-i{content:"";position:absolute;right:0;top:50%;width:32px;height:32px;margin-top:-16px;border:1px solid var(--c-line2);border-radius:50%;
  background:linear-gradient(var(--c-sky),var(--c-sky)) center/12px 1.5px no-repeat,linear-gradient(var(--c-sky),var(--c-sky)) center/1.5px 12px no-repeat;transition:transform .25s,background-color .2s}
.cap-adv[open]>summary::after,.cap-steps[open]>summary::after,.qa[open] .qa-i{transform:rotate(45deg)}
.cap-adv[open]>summary{margin-bottom:8px}

/* 電器清單 */
.ap-list{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;margin-top:12px}
.ap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--c-line)}
.ap-t{min-width:0}
.ap-t label{display:block;cursor:pointer;font-size:15px;font-weight:500;color:var(--c-ink);line-height:1.5}
.ap-t small{display:block;font:400 12px/1.6 var(--mono);color:var(--c-mute);letter-spacing:.02em}
.ap-t em{font-style:normal;color:#7A5A12;background:var(--c-hi);padding:0 4px;border-radius:3px}
.ap-other{margin-top:4px}
.cap-src{margin-top:16px;font-size:13px;line-height:1.8;color:var(--c-mute)}
.cap-src a,.src{color:var(--c-sky);text-decoration:underline;text-underline-offset:3px}
.cap-src em{font-style:normal;color:#7A5A12;background:var(--c-hi);padding:0 4px;border-radius:3px}

/* ---------- 結果卡（深色） ---------- */
.cap-result{position:sticky;top:calc(var(--nav-h,56px) + 20px);background:var(--c-ink);color:#F6F3E6;border-radius:20px;padding:clamp(22px,2.6vw,32px);
  box-shadow:0 30px 60px -30px rgba(29,42,54,.55);overflow:hidden}
.cap-result::before{content:"";position:absolute;inset:0 0 auto auto;width:240px;height:240px;background:radial-gradient(circle at 70% 30%,rgba(244,240,184,.12),transparent 65%);pointer-events:none}
.res-t{font:500 12px/1 var(--mono);letter-spacing:.12em;color:rgba(246,243,230,.62);margin-bottom:18px}
.res-lead{font-size:15px;color:rgba(246,243,230,.82)}
.res-big{display:flex;align-items:baseline;gap:10px;margin:4px 0 6px;font:400 clamp(64px,8vw,96px)/1 var(--mono);letter-spacing:-.04em;color:#fff;font-variant-numeric:tabular-nums}
.res-u{font-size:22px;letter-spacing:0;color:var(--c-hi)}
.is-empty .res-big{color:rgba(246,243,230,.35)}
.is-over .res-big{font-size:clamp(48px,6vw,72px)}
.is-over .res-sub{color:var(--c-hi);font-weight:500}
.res-sub{font-size:15px;line-height:1.7;color:rgba(246,243,230,.86);min-height:1.7em}
.res-model{font-size:14px;line-height:1.7;color:rgba(246,243,230,.7);margin-top:6px;min-height:1.7em}

/* 級距尺 */
.rl{position:relative;height:58px;margin:18px 8px 6px}
.rl-track{position:absolute;left:0;right:0;top:22px;height:2px;background:rgba(246,243,230,.18);border-radius:2px}
.rl-tick{position:absolute;top:0;transform:translateX(-50%);font:500 11px/1 var(--mono);color:rgba(246,243,230,.55);padding-top:34px;transition:color .3s}
.rl-tick::before{content:"";position:absolute;left:50%;top:16px;width:2px;height:14px;margin-left:-1px;background:rgba(246,243,230,.35);border-radius:1px;transition:background .3s,height .3s,top .3s}
.rl-tick.on{color:var(--c-hi);font-weight:700;font-size:13px}
.rl-tick.on::before{top:12px;height:22px;width:3px;margin-left:-1.5px;background:var(--c-hi)}
.rl-mark{position:absolute;top:8px;width:0;height:0;margin-left:-6px;border:6px solid transparent;border-top:9px solid #fff;transition:left .35s cubic-bezier(.3,.7,.2,1)}
.rl-jump{position:absolute;top:22px;height:2px;background:var(--c-hi);transition:left .35s cubic-bezier(.3,.7,.2,1),width .35s cubic-bezier(.3,.7,.2,1)}
.is-empty .rl-mark,.is-empty .rl-jump{opacity:0}

.res-conv{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:rgba(246,243,230,.12);border-radius:12px;overflow:hidden;margin-top:14px}
.res-conv div{background:#24323F;padding:12px 14px}
.res-conv dt{font:500 11px/1.4 var(--mono);letter-spacing:.06em;color:rgba(246,243,230,.62)}
.res-conv dd{font:400 20px/1.3 var(--mono);color:#fff;font-variant-numeric:tabular-nums;margin-top:2px}
.res-note{font-size:12.5px;line-height:1.7;color:rgba(246,243,230,.62);margin-top:10px}
.res-act{display:flex;gap:8px;margin-top:16px}
.res-btn{flex:1;min-height:44px;border-radius:999px;border:1px solid rgba(246,243,230,.3);background:none;color:#F6F3E6;font:500 14px/1 var(--f-sans,inherit);cursor:pointer;transition:background .2s,border-color .2s}
.res-btn:hover{background:rgba(246,243,230,.08);border-color:rgba(246,243,230,.55)}
.is-empty .res-act{display:none}
.res-cta{margin-top:18px;padding-top:18px;border-top:1px solid rgba(246,243,230,.14);display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px}
.res-warn{flex-basis:100%;font-size:14px;line-height:1.7;color:#F6F3E6;margin-bottom:8px}
.res-cta .btn-line{flex-basis:100%;justify-content:center}
.res-link{font-size:14px;color:var(--c-hi);text-decoration:underline;text-underline-offset:4px;min-height:44px;display:inline-flex;align-items:center}
.cap-result :focus-visible{outline-color:var(--c-hi)}

/* 計算過程 */
.cap-steps{margin-top:16px;background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:clamp(18px,2.4vw,28px)}
.steps-wrap{margin-top:14px;overflow-x:auto}
.steps{width:100%;border-collapse:collapse;font-size:15px}
.steps th,.steps td{text-align:left;vertical-align:top;padding:12px 10px;border-top:1px solid var(--c-line);line-height:1.7}
.steps thead th{font:500 12px/1.4 var(--mono);letter-spacing:.08em;color:var(--c-mute);border-top:0}
.steps tbody th{white-space:nowrap;font-weight:500;color:var(--c-ink)}
.steps td:last-child{white-space:nowrap;text-align:right;font-family:var(--mono);color:var(--c-ink)}
.steps td small{display:block;font-size:13px;color:var(--c-mute)}
.steps .tot th,.steps .tot td{background:var(--c-bg);font-weight:500}
.steps .tot:last-child td:last-child{color:var(--c-sky)}

/* ---------- 教育段 ---------- */
.cap-edu{background:var(--c-bg2)!important}
.edu-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(28px,4vw,56px)}
.edu-b{border-top:1px solid var(--c-line2);padding:24px 0 30px}
.edu-b h3,.u-text h3,.why-kw h3{font:700 var(--t-sub,24px)/1.45 var(--f-serif);color:var(--c-ink);margin-bottom:12px;text-wrap:balance}
.edu-b p,.u-text p,.why-kw p,.see-also{font-size:16px;line-height:1.9;color:var(--c-ink2)}
.edu-b p+p,.u-text p+p{margin-top:12px}
.edu-b a,.u-text a,.why-kw a,.see-also a{color:var(--c-sky);text-decoration:underline;text-underline-offset:3px;font-weight:500}
a.src{display:inline;margin-left:6px;font-size:13px;font-weight:400;color:var(--c-mute)}
.mini{width:100%;border-collapse:collapse;margin:4px 0 14px}
.mini th,.mini td{padding:9px 0;border-bottom:1px solid var(--c-line);text-align:left;font-size:16px}
.mini th{font-weight:500;width:5em}
.mini td{font-family:var(--mono);color:var(--c-sky)}
.adds{list-style:none}
.adds li{display:grid;grid-template-columns:6.4em 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--c-line);align-items:baseline}
.adds b{font:400 18px/1.4 var(--mono);color:var(--c-sky);letter-spacing:-.02em}
.adds span{font-size:15px;line-height:1.75;color:var(--c-ink2)}

/* 單位與噸 */
.units-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(28px,5vw,72px);align-items:start}
.u-text h3:not(:first-child){margin-top:32px}
.u-eq{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;font:400 clamp(20px,2.4vw,26px)/1.4 var(--mono)!important;color:var(--c-ink)!important;letter-spacing:-.02em;margin-bottom:12px}
.u-eq i{font-style:normal;color:var(--c-sky)}
.tons{margin:0;background:#fff;border:1px solid var(--c-line);border-radius:20px;padding:clamp(20px,3vw,32px);position:sticky;top:calc(var(--nav-h,56px) + 24px)}
.ton{display:grid;grid-template-columns:1fr auto;gap:6px 12px;padding:14px 0;border-bottom:1px solid var(--c-line)}
.ton-n{font-weight:500;font-size:15px;color:var(--c-ink)}
.ton-n small{margin-left:8px;font:500 11px/1 var(--mono);color:var(--c-mute);border:1px solid var(--c-line2);border-radius:999px;padding:2px 6px}
.ton-v{font:400 15px/1.4 var(--mono);color:var(--c-ink);text-align:right}
.ton-bar{grid-column:1/-1;grid-row:2;height:10px;border-radius:999px;background:var(--c-bg2);position:relative;overflow:hidden}
.ton-bar::after{content:"";position:absolute;inset:0 auto 0 0;width:var(--w);background:var(--c-sky);border-radius:inherit;transform-origin:left;transition:transform .9s cubic-bezier(.3,.7,.2,1)}
.ton-bar.is-us::after{background:var(--c-ink)}
.is-ref .ton-bar::after{background:repeating-linear-gradient(135deg,var(--c-line2) 0 6px,transparent 6px 10px)}
.tons figcaption{margin-top:16px;font:400 14px/1.7 var(--f-sans,inherit);color:var(--c-ink2)}
.why-kw{margin-top:clamp(32px,4vw,48px)!important;padding:clamp(20px,3vw,32px);border-left:3px solid var(--c-sky);background:#fff;border-radius:0 16px 16px 0;max-width:760px!important;margin-left:max(0px,calc((100% - var(--tp-w,1120px))/2))!important}

/* 級距表 */
.cap-levels{background:var(--c-bg2)!important}
.tbl-wrap{overflow-x:auto;background:#fff;border:1px solid var(--c-line);border-radius:16px;margin-bottom:clamp(20px,3vw,32px)}
.lv{width:100%;border-collapse:collapse;min-width:560px}
.lv caption{caption-side:bottom;text-align:left;padding:12px 18px 16px;font-size:13px;line-height:1.7;color:var(--c-mute)}
.lv th,.lv td{padding:14px 18px;text-align:right;border-bottom:1px solid var(--c-line);font:400 15px/1.4 var(--mono);color:var(--c-ink2);white-space:nowrap}
.lv thead th{font:500 12px/1.4 var(--mono);letter-spacing:.06em;color:var(--c-mute);background:var(--c-bg)}
.lv th:first-child,.lv td:first-child{text-align:left}
.lv tbody th{color:var(--c-sky);font-weight:500;font-size:16px}
.lv td small{display:block;font:400 12px/1.4 var(--f-sans,inherit);color:#7A5A12}
.lv tbody tr:hover{background:var(--c-bg)}
.see-also{margin-top:8px}

/* FAQ */
.qa-list{border-top:1px solid var(--c-line2)}
.qa{border-bottom:1px solid var(--c-line2)}
.qa>summary{list-style:none;cursor:pointer;position:relative;padding:22px 52px 22px 0;min-height:44px}
.qa>summary h3{font:700 clamp(17px,2vw,19px)/1.6 var(--f-serif);color:var(--c-ink)}
.qa>summary:hover h3{color:var(--c-sky)}
.qa p{padding:0 52px 24px 0;font-size:16px;line-height:1.95;color:var(--c-ink2);max-width:46em}

/* CTA */
.cap-page .cta-fee{font-size:14px;line-height:1.8;color:var(--c-ink2);margin-top:20px}
.cap-page .cta-section .cta-btns{margin-top:24px}
.cap-page .cta-phone-line{margin-top:10px;font-size:14px;line-height:1.9}

/* 手機底部小條 */
.cap-bar{position:fixed;left:16px;right:84px;bottom:16px;z-index:98;display:none;align-items:center;justify-content:space-between;gap:12px;
  min-height:52px;padding:0 18px;border:0;border-radius:999px;background:var(--c-ink);color:#fff;font:500 15px/1.2 var(--f-sans,inherit);
  box-shadow:0 10px 30px -8px rgba(29,42,54,.5);cursor:pointer;transform:translateY(140%);transition:transform .3s cubic-bezier(.3,.7,.2,1)}
.cap-bar span:last-child{font:500 12px/1 var(--mono);color:var(--c-hi);white-space:nowrap}
.cap-bar span:first-child{overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-height:1.35;text-align:left}

@media (max-width:900px){
  .cap-grid{grid-template-columns:1fr}
  .cap-result{position:relative;top:auto}
  .units-grid{grid-template-columns:1fr}
  .tons{position:relative;top:auto}
  .cap-bar:not([hidden]){display:flex}
  body.cap-bar-on .cap-bar{transform:none}
}
@media (max-width:640px){
  .ap-list{grid-template-columns:1fr}
  .edu-cols{grid-template-columns:1fr}
}
@media (max-width:520px){
  .cap-card{border-radius:14px;padding:18px 16px}
  .fld-row{align-items:flex-start}
  .fld-row .sw,.fld-row .st,.fld-row .in-u.sm{margin-top:2px}
  .in-u.sm{width:112px}
  .seg{grid-template-columns:1fr}
  .seg label{flex-direction:row;gap:8px;min-height:44px}
  .res-big{font-size:64px}
  .steps,.steps td small{font-size:14px}
  .steps th,.steps td{padding:10px 6px}
  .adds li{grid-template-columns:5.6em 1fr}
  .qa>summary{padding-right:44px}
  .qa p{padding-right:0}
  .lv th,.lv td{padding:12px 12px}
}
@media (prefers-reduced-motion:reduce){
  .cap-page *,.cap-page *::before,.cap-page *::after{transition:none!important;animation:none!important}
}
/* 計算器區的 H2 縮一階，讓桌機首屏看得到輸入框 */
html body.cap-page .cap-calc .sec-cn{font-size:clamp(24px,2.4vw,32px)!important}
/* 手機有全站底部快捷列（nav.js 的 .fx-dock，≤768px）→ 小條放在它上面、左右撐滿 */
@media (max-width:768px){
  html.has-dock .cap-bar,html:has(.fx-dock) .cap-bar{left:12px;right:12px;bottom:calc(78px + env(safe-area-inset-bottom,0px))}
}
.cap-page .sec-cn{margin-left:0!important}
/* 級距尺：2.8、4.1 兩格太靠近鄰居，標籤往下錯開一排 */
.rl{height:70px}
.rl-tick:nth-of-type(2),.rl-tick:nth-of-type(4){padding-top:50px}
.rl-tick:nth-of-type(2)::before,.rl-tick:nth-of-type(4)::before{height:30px}
/* 電器清單：手機先列 4 項，其餘點開 */
.ap-more{display:none}
@media (max-width:900px){
  .ap-list:not(.all) .ap:nth-child(n+5){display:none}
  .ap-more{display:flex;align-items:center;justify-content:center;width:100%;min-height:48px;margin-top:4px;border:1px dashed var(--c-line2);border-radius:12px;
    background:none;font:500 15px/1.4 var(--f-sans,inherit);color:var(--c-sky);cursor:pointer}
}
/* 計算過程：窄螢幕改成「項目＋結果」一行、算法在下一行 */
@media (max-width:640px){
  .steps thead{display:none}
  .steps tr{display:grid;grid-template-columns:1fr auto;column-gap:12px;border-top:1px solid var(--c-line);padding:12px 4px}
  .steps th,.steps td{border:0;padding:0}
  .steps tbody th{grid-column:1;grid-row:1}
  .steps td:last-child{grid-column:2;grid-row:1}
  .steps td:nth-child(2){grid-column:1 / -1;grid-row:2;margin-top:4px;color:var(--c-ink2)}
  .steps td[colspan]{grid-column:1 / -1}
  .steps .tot th,.steps .tot td{background:none}
  .steps .tot{background:var(--c-bg)}
}
.cap-page .cta-phone-line{text-align:left}

/* ---------- 2026-11-04 設計評審第 1 輪修正（E-設計評審-第1輪 #1 #15–18） ---------- */
/* #1 結果卡：LINE CTA 移到大字＋級距尺正下方；換算改一排四格；桌機 sticky 時卡片不超出視窗，超出就卡片內捲 */
.res-t{margin-bottom:12px}
.res-big{font-size:clamp(56px,6vw,80px);margin:2px 0 4px}
.rl{margin:12px 8px 2px}
.res-cta{margin-top:12px;padding-top:14px;gap:2px 18px}
.res-warn{margin-bottom:6px}
.res-conv{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:14px}
.res-conv div{padding:9px 8px 10px}
.res-conv dt{font-size:10.5px;letter-spacing:.02em;white-space:nowrap}
.res-conv dd{font-size:15px;letter-spacing:-.02em;overflow-wrap:anywhere}
.res-note{font-size:12px;line-height:1.6;margin-top:8px}
.res-act{margin-top:12px}
@media (min-width:901px){
  .cap-result{max-height:calc(100vh - var(--nav-h,56px) - 36px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:rgba(246,243,230,.25) transparent}
  .cap-result::-webkit-scrollbar{width:6px}
  .cap-result::-webkit-scrollbar-thumb{background:rgba(246,243,230,.25);border-radius:3px}
}
@media (max-width:520px){
  .res-conv{grid-template-columns:repeat(2,minmax(0,1fr))}
  .res-conv div{padding:12px 14px}
  .res-conv dt{font-size:11px}
  .res-conv dd{font-size:20px}
}
/* #17 空狀態：用 calc.js 真算的範例，半透明預覽＋「範例」標籤 */
.res-demo{align-self:center;margin-left:4px;padding:4px 10px;border:1px dashed rgba(244,240,184,.55);border-radius:999px;
  font:500 12px/1.2 var(--mono);letter-spacing:.04em;color:var(--c-hi);white-space:nowrap}
.res-demo[hidden]{display:none}
.is-empty .res-u{opacity:.45}
.is-empty .res-conv dd{color:rgba(246,243,230,.38)}
.is-empty .rl-mark{opacity:.45}
.is-empty .rl-jump{opacity:1;background:repeating-linear-gradient(90deg,rgba(244,240,184,.55) 0 4px,transparent 4px 7px)}
.is-empty .rl-tick.on{color:rgba(244,240,184,.6)}
.is-empty .rl-tick.on::before{background:rgba(244,240,184,.45)}
.is-empty .res-model{color:rgba(246,243,230,.6)}
/* #18 級距表：手機不橫捲。每列上排「能力／末兩碼／坪數」，下排小字列 kcal/h、BTU/h、台灣噸（資料不消失）；說明移到表格下方不被裁 */
@media (max-width:520px){
  .tbl-wrap{overflow-x:visible}
  .lv{display:flex;flex-direction:column;min-width:0}
  .lv caption{order:9;display:block;padding:12px 14px 14px;border-top:1px solid var(--c-line)}
  .lv thead,.lv tbody{display:block}
  .lv tr{display:grid;grid-template-columns:1.05fr .9fr 1.15fr;column-gap:8px;padding:0 14px;border-bottom:1px solid var(--c-line)}
  .lv tbody tr:last-child{border-bottom:0}
  .lv thead tr{background:var(--c-bg)}
  .lv th,.lv td{padding:12px 0;border-bottom:0;text-align:left;white-space:normal}
  .lv thead th:nth-child(n+4){display:none}
  .lv tbody tr>:nth-child(-n+3){grid-row:1;padding-bottom:4px}
  .lv tbody tr>:nth-child(n+4){grid-row:2;padding:0 0 12px;font-size:12px;color:var(--c-mute);white-space:nowrap}
  .lv tbody tr>:nth-child(n+4)::before{content:attr(data-k);display:block;font-size:10.5px;letter-spacing:.04em;color:var(--c-mute);opacity:.8}
  .lv tbody tr>:nth-child(n+4){color:var(--c-ink2)}
}
@media (min-width:901px){
  .cap-result{padding:26px 28px 24px}
  .res-big{font-size:clamp(56px,5.4vw,72px)}
  .rl{margin-top:8px}
  .res-conv{margin-top:12px}
  .res-act{margin-top:10px}
}
/* 來源行內連結：手機擴大點擊區（不影響排版） */
@media (max-width:900px){html body.cap-page .cap-src a{padding:13px 0;margin:-13px 0}}

/* ---------- 2026-11-04 設計評審第 2 輪修正 ---------- */
/* N5 焦點框包住整個「輸入＋單位」，不從單位中間切過 */
.cap-page .in-u input:focus-visible{outline:0}
.cap-page .in-u:focus-within{outline:2px solid var(--c-sky);outline-offset:3px}

/* N4 結果卡：沒有型號說明時不佔位；指針上方標計算值；超過最大級距的區段畫斜線 */
.res-model:empty{display:none}
.rl{margin-top:22px}
.rl-val{position:absolute;top:-14px;transform:translateX(-50%);font:500 12px/1 var(--mono);color:#fff;white-space:nowrap;letter-spacing:-.01em;
  transition:left .35s cubic-bezier(.3,.7,.2,1)}
.rl-val.at-r{transform:translateX(calc(-100% + 8px))}
.rl-val.at-l{transform:translateX(-8px)}
.is-empty .rl-val{opacity:.45}
.rl-val:empty{display:none}
.rl-over{position:absolute;top:18px;height:10px;border-radius:2px;display:none;
  background:repeating-linear-gradient(135deg,rgba(244,240,184,.55) 0 3px,transparent 3px 7px)}
.is-over .rl-over{display:block}
.is-over .rl-val{color:var(--c-hi);font-size:13px;font-weight:700}
.is-over .rl-mark{border-top-color:var(--c-hi)}

/* hero 右欄：快速試算（≥1024px 才出現；平板與手機計算器就在正下方，不重複放） */
.cap-quick{display:none}
@media (min-width:1024px){
  .cap-page .cap-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,360px);column-gap:clamp(40px,5vw,72px);align-content:start}
  .cap-page .cap-head>:not(.cap-quick){grid-column:1}
  .cap-quick:not([hidden]){display:block;grid-column:2;grid-row:1 / span 4;align-self:center;position:relative;z-index:1;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;padding:20px 24px 20px;box-shadow:0 24px 48px -32px rgba(29,42,54,.35)}
}
.cq-t{font:500 12px/1 var(--mono);letter-spacing:.12em;color:var(--c-sky);margin:0 0 10px}
.cq-l{display:block;font:700 19px/1.4 var(--f-serif);color:var(--c-ink);margin-bottom:8px}
.cq-in{max-width:none}
.cq-in input{font-size:28px;padding:7px 4px 7px 16px;letter-spacing:-.02em}
.cq-in .u{font-size:16px}
.cq-lead{margin:12px 0 0;font-size:14px;color:var(--c-ink2);min-height:1.5em}
.cq-big{display:flex;align-items:baseline;gap:8px;margin:2px 0 0;font:400 44px/1.05 var(--mono);letter-spacing:-.04em;color:var(--c-ink);font-variant-numeric:tabular-nums}
.cq-u{font-size:18px;letter-spacing:0;color:var(--c-sky)}
.cq-sub{margin:4px 0 0;font-size:13.5px;line-height:1.6;color:var(--c-mute);min-height:1.6em}
.is-demo .cq-big{color:rgba(29,42,54,.35)}
.is-demo .cq-lead{color:var(--c-mute)}
.is-over .cq-big{font-size:40px}
.is-over .cq-sub{color:#7A5A12;font-weight:500}
.cq-rl{position:relative;height:48px;margin:8px 6px 0}
.cq-track{position:absolute;left:0;right:0;top:14px;height:2px;background:var(--c-line2);border-radius:2px}
.cq-jump{position:absolute;top:14px;height:2px;background:var(--c-sky);transition:left .35s cubic-bezier(.3,.7,.2,1),width .35s cubic-bezier(.3,.7,.2,1)}
.cq-mark{position:absolute;top:2px;width:0;height:0;margin-left:-5px;border:5px solid transparent;border-top:8px solid var(--c-ink);transition:left .35s cubic-bezier(.3,.7,.2,1)}
.cq-tick{position:absolute;top:0;transform:translateX(-50%);padding-top:26px;font:500 10.5px/1 var(--mono);color:var(--c-mute)}
.cq-tick::before{content:"";position:absolute;left:50%;top:10px;width:1.5px;height:10px;margin-left:-.75px;background:var(--c-line2)}
.cq-tick:nth-of-type(5),.cq-tick:nth-of-type(7){padding-top:38px}
.cq-tick:nth-of-type(5)::before,.cq-tick:nth-of-type(7)::before{height:22px}
.cq-tick.on{color:var(--c-sky);font-weight:700}
.cq-tick.on::before{background:var(--c-sky);width:2.5px;margin-left:-1.25px}
.is-demo .cq-jump{background:repeating-linear-gradient(90deg,rgba(44,106,168,.5) 0 4px,transparent 4px 7px)}
.is-demo .cq-mark{opacity:.4}
.is-over .cq-jump{display:none}
.cq-over{position:absolute;top:10px;height:10px;border-radius:2px;display:none;background:repeating-linear-gradient(135deg,rgba(122,90,18,.45) 0 3px,transparent 3px 7px)}
.is-over .cq-over{display:block}
.cq-go{display:flex;align-items:center;justify-content:center;width:100%;min-height:46px;margin-top:8px;border:0;border-radius:999px;background:var(--c-sky);color:#fff;
  font:500 15px/1.3 var(--f-sans,inherit);cursor:pointer;transition:background .2s}
.cq-go:hover{background:var(--c-sky-h)}