/* ===== 冷氣選購指南 樣式表 ===== */
:root{
  --paper:#fbfbfb;
  --surface:#FFFFFF;
  --ink:#17181C;
  --ink-2:#4A4E56;
  --ink-3:#83878F;
  --line:#E4E4E0;
  --line-2:#D3D3CE;
  --brand:#ea1717;
  --brand-dark:#c80f0f;

  --accent:#2560D8;
  --accent-grad:linear-gradient(180deg,#649AFE 20%,#3375F3 100%);
  --accent-hover:#1F57C7;  --accent-deep:#14356E;
  --accent-soft:#EAF2FE;
  --accent-tint:#F0F6FF;
  --accent-tint-2:#CFE0FD;

  --ph-bg:#DCDCDA;
  --ph-logo:url("https://fs-f.ecimg.tw/img/h24/new/index/v1/images/logo/logo_pchome--24hWhiteLg-V2.svg");
  --ph-logo-size:clamp(11.25rem,22vw,17.5rem) auto;
  --ph-logo-pos:center center;

  --info:#2560D8;

  --r-sm:6px; --r:10px; --r-lg:16px;
  --shadow:0 1px 2px rgba(23,24,28,.06), 0 8px 24px -12px rgba(23,24,28,.14);
  --card-shadow:0 4px 16px rgba(23,24,28,.08);
  --wrap:1080px; --gut:20px;
  --header-h:102px;

  --footer-bg:#002B45;

  --promo-ratio: 1644 / 604;

  --sans:'Montserrat',-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Microsoft JhengHei",Roboto,sans-serif;

  --fs-scale:1;
  --fs-xs:   calc(0.75rem   * var(--fs-scale));  --fs-sm:   calc(0.875rem  * var(--fs-scale));  --fs-base: calc(1rem      * var(--fs-scale));  --fs-lg:   calc(1.125rem  * var(--fs-scale));  --fs-xl:   calc(1.375rem  * var(--fs-scale));  --fs-2xl:  clamp(calc(1.5rem * var(--fs-scale)), 3.4vw, calc(2rem * var(--fs-scale)));
}

@media(max-width:768px) {
  :root {
    --fs-xs:   calc(0.875rem  * var(--fs-scale));    --fs-sm:   calc(1rem      * var(--fs-scale));    --fs-base: calc(1.125rem  * var(--fs-scale));    --fs-lg:   calc(1.375rem  * var(--fs-scale));    --fs-xl:   calc(1.625rem  * var(--fs-scale));    --fs-2xl:  clamp(calc(1.375rem * var(--fs-scale)), 3.4vw, calc(1.75rem * var(--fs-scale)));
  }
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

[hidden]{display:none !important}

body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  font-size:var(--fs-base);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.scroll-lock{overflow:hidden}
body.nav-open{overflow:hidden}

a,button,select,summary{cursor:pointer}
img{display:block;max-width:100%}
ul{list-style:none}

:focus-visible{outline:1px solid var(--accent);outline-offset:1px;border-radius:4px}

/* ===== 水平溢出防護 ===== */.wrap > *,
.calc-body > *,
.subsidy-grid > *,
.tips > *,
.cspf-intro > *,
.energy-scale > *,
.result-stats > *,
.scale-track > *,
.conds-grid > *,
.field-grid > *{min-width:0}

img,svg,video,canvas,table{max-width:100%}

.card-name,.tip-desc,
.cmp-table td,.cmp-table th{overflow-wrap:anywhere}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.skip-link{
  position:fixed;top:0;left:0;z-index:10000;
  transform:translateY(-100%);
  background:var(--brand);color:#fff;
  padding:12px 20px;border-radius:0 0 var(--r) 0;
  font-size:var(--fs-sm);font-weight:800;
  text-decoration:none;
  box-shadow:0 4px 14px rgba(0,0,0,.28);
  transition:transform .18s ease;
}
.skip-link:focus{
  transform:translateY(0);
  outline:2px solid #fff;outline-offset:-6px;
}

.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.section{padding-block:60px;scroll-margin-top:calc(var(--header-h) + 12px)}
.section-alt{background:var(--surface)}
.section-tint{background:#f6f6f6}

.section-head{position:relative;text-align:center}
.section-head-main{display:inline-block;position:relative}
.section-link{
  position:absolute;left:100%;bottom:.42em;
  margin-left:12px;white-space:nowrap;
  display:inline-flex;align-items:center;gap:5px;
  font-size:var(--fs-base);font-weight:700;color:var(--accent);
  text-decoration:none;
  border-bottom:1.5px solid currentColor;padding-bottom:2px;
  transition:color .2s,transform .18s ease;
}
.section-link:hover{color:var(--accent-hover);transform:translateY(-3px)}
@media(max-width:860px){
  .section-link{
    position:static;margin:12px 0 0;
    font-size:var(--fs-sm);
  }
  .section-link:hover{transform:none}
}

.eyebrow{
  font-size:var(--fs-xs);font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:8px;
}
.section-title{
  font-size:clamp(1.75rem,4.6vw,2.625rem);font-weight:800;
  line-height:1.25;letter-spacing:-.01em;text-align:center;
}
.eyebrow{text-align:center}
.section-lede{color:var(--ink-2);margin:8px auto 0;max-width:56ch;text-align:center}
.sub-title{
  font-size:var(--fs-2xl);font-weight:800;letter-spacing:-.01em;
  margin:40px 0 14px;padding-left:13px;position:relative;line-height:1.35;
}
.sub-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;
  width:5px;border-radius:3px;background-color:var(--accent);
}
.sub-title:first-of-type{margin-top:28px}

/* ===== 捲動出現 ===== */.js-reveal .reveal{
  opacity:0;
  transform:translateY(34px);
  transition:opacity .75s cubic-bezier(.16,1,.3,1),
             transform .75s cubic-bezier(.16,1,.3,1);
  will-change:opacity,transform;
}
.js-reveal .reveal.is-visible{opacity:1;transform:none}

.js-reveal .reveal .subsidy-card,
.js-reveal .reveal .cspf-points li,
.js-reveal .reveal .conds-grid .cond-btn{
  opacity:0;transform:translateY(16px);
  transition:opacity .55s ease,transform .55s cubic-bezier(.16,1,.3,1);
}
.js-reveal .reveal.is-visible .subsidy-card,
.js-reveal .reveal.is-visible .cspf-points li,
.js-reveal .reveal.is-visible .conds-grid .cond-btn{opacity:1;transform:none}

.js-reveal .reveal.is-visible .subsidy-card:nth-child(1),
.js-reveal .reveal.is-visible .cspf-points li:nth-child(1),
.js-reveal .reveal.is-visible .conds-grid .cond-btn:nth-child(1){transition-delay:.10s}
.js-reveal .reveal.is-visible .subsidy-card:nth-child(2),
.js-reveal .reveal.is-visible .cspf-points li:nth-child(2),
.js-reveal .reveal.is-visible .conds-grid .cond-btn:nth-child(2){transition-delay:.18s}
.js-reveal .reveal.is-visible .subsidy-card:nth-child(3),
.js-reveal .reveal.is-visible .cspf-points li:nth-child(3),
.js-reveal .reveal.is-visible .conds-grid .cond-btn:nth-child(3){transition-delay:.26s}
.js-reveal .reveal.is-visible .subsidy-card:nth-child(4),
.js-reveal .reveal.is-visible .conds-grid .cond-btn:nth-child(4){transition-delay:.34s}

/* ===== Header:品牌列 + 錨點導覽 ===== */.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:var(--brand);
}

.header-brand{
  background:var(--brand-dark);
  font-size:var(--fs-xs);
  line-height:1;
}
.header-brand-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  height:44px;
}
.header-brand-left{display:flex;align-items:center;gap:0}
.header-brand a{color:#fff;text-decoration:none;font-weight:400}
.header-brand a:hover{color:#c3c3c3}

.header-logo{display:block;flex:none}
.logo-light{height:22px;width:auto;display:block}

.brand-links{display:flex;align-items:center;margin-left:14px}
.brand-links a{padding:0 10px;display:block}
.brand-links li:not(:last-child) a::after{
  content:"|";display:inline-block;padding-left:10px;color:#fff;opacity:.55;
}

.brand-app{position:relative;cursor:pointer;padding:0 10px}
.brand-app-text{color:#fff;font-weight:400}
.brand-app-qr{
  position:absolute;top:calc(100% + 8px);left:50%;
  transform:translateX(-50%);
  display:none;z-index:1000;
  width:130px;padding:8px;border-radius:10px;
  background:#fff;box-shadow:0 0 8px rgba(0,0,0,.2);
}
.brand-app-qr img{width:100%;display:block}
.brand-app:hover .brand-app-qr{display:block}

.brand-slogan{color:#fff;letter-spacing:.2em;font-weight:400}

@media(max-width:900px){
  .brand-links,.brand-app,.brand-slogan{display:none}
  .header-brand-inner{height:40px;justify-content:center}
}

.header-nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:calc(var(--header-h) - 44px);
}
.header-title{
  flex:none;color:#fff;text-decoration:none;
  font-size:var(--fs-base);font-weight:800;letter-spacing:-.01em;
  white-space:nowrap;
}
.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  display:block;padding:9px 13px;border-radius:var(--r);
  color:#fff;text-decoration:none;
  font-size:var(--fs-sm);font-weight:700;white-space:nowrap;
  transition:background .2s,color .2s,transform .18s ease;
}
.nav-link:hover{background:rgba(255,255,255,.16);transform:translateY(-3px)}
.nav-link.is-current{background:#fff;color:var(--brand)}
.nav-link.is-external{display:inline-flex;align-items:center;gap:4px}
.ext-icon{font-size:.9em}

.nav-toggle{
  display:none;flex:none;
  width:42px;height:42px;border:0;background:transparent;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle-bar{
  width:22px;height:2px;border-radius:2px;background:#fff;
  transition:transform .3s,opacity .3s;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav-backdrop{
  position:fixed;inset:0;z-index:190;
  background:rgba(0,0,0,.4);
}

@media(max-width:900px){
  :root{--header-h:96px}
  .header-nav-inner{height:calc(var(--header-h) - 40px)}

  .nav-toggle{display:flex;order:-1;margin-left:-10px}
  .header-nav-inner{justify-content:flex-start;gap:2px;position:relative}
  .header-title{
    order:0;margin-left:0;
    position:absolute;left:50%;transform:translateX(-50%);
    white-space:nowrap;
  }

  .site-nav{
    position:fixed;top:var(--header-h);left:0;
    width:min(78vw,300px);height:calc(100dvh - var(--header-h));
    background:var(--surface);
    box-shadow:8px 0 24px rgba(0,0,0,.18);
    transform:translateX(-100%);
    transition:transform .3s cubic-bezier(.16,1,.3,1);
    overflow-y:auto;padding:8px;margin-left:0;
  }
  body.nav-open .site-nav{transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{
    display:block;padding:14px 16px;border-radius:var(--r);
    color:var(--ink) !important;font-size:var(--fs-base);
  }
  .nav-link:hover{background:var(--paper);transform:none}
  .nav-link.is-current{background:transparent;color:var(--brand) !important}
  .nav-link.is-current:hover{background:var(--paper)}

  .nav-link.is-external{
    display:flex;
    margin:10px -8px 0;
    padding:18px 24px 16px;
    border-top:1px solid var(--line);
    border-radius:0;
    justify-content:space-between;
  }
  .site-nav :focus-visible{outline-color:var(--brand)}
}

/* ===== 1. 主視覺 ===== */.hero{
  border-radius:0 0 50% 50% / 0 0 var(--hero-curve) var(--hero-curve);
  overflow:hidden;
  position:relative;width:100%;
  height:var(--hero-h);
  display:flex;align-items:center;
  background-color:#fff;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}

/* ===== 主視覺底圖:季節切換 ===== */
.season_s .hero{background-image:url("./assets/common/hero-bg_s.svg?v=260929a")}
.season_w .hero{background-image:url("./assets/common/hero-bg_w.svg?v=260929a")}
@media(max-width:1220px){
  .season_s .hero{background-image:url("./assets/common/hero-bg-t_s.jpg?v=260929a")}
  .season_w .hero{background-image:url("./assets/common/hero-bg-t_w.jpg?v=260929a")}
}
@media(max-width:768px){
  .season_s .hero{background-image:url("./assets/common/hero-bg-m_s.jpg?v=260929a")}
  .season_w .hero{background-image:url("./assets/common/hero-bg-m_w.jpg?v=260929a")}
}
@media(max-width:1220px){
  .hero{border-radius:0}
}
@media(max-width:640px){.hero{min-height:min(78vh,560px)}}

.hero-content{
  position:relative;z-index:1;width:100%;
  color:#fff;
  padding-top:var(--hero-gap);
  padding-bottom:calc(var(--hero-art-gap) + var(--card-overlap) + var(--cue-gap) + var(--cue-h));
  text-align:center;
}
.hero-art{
  display:block;
  max-height:calc(var(--hero-h) - var(--hero-gap) - var(--hero-art-gap)
                  - var(--card-overlap) - var(--cue-gap) - var(--cue-h));
  max-width:min(100%, 60vw);
  width:auto;height:auto;
  margin:0 auto;
  filter:drop-shadow(0 2px 12px rgba(12,60,105,.28));
}
@media(max-width:1220px){
  .hero-art{
    max-width:88vw;
  }
}

.scroll-cue{
  position:absolute;left:50%;z-index:3;
  bottom:calc(var(--card-overlap) + var(--cue-gap));
  transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  text-decoration:none;color:#fff;
  animation:cueFloat 2.6s ease-in-out infinite;
}
.scroll-cue-text{
  font-size:var(--fs-sm);font-weight:800;letter-spacing:.14em;
  background:rgba(255,255,255,.02);
  border:1.5px solid rgba(255,255,255,.6);
  padding:9px 22px;border-radius:999px;
  backdrop-filter:blur(2px);
  transition:background .2s,border-color .2s;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.16);
}
.scroll-cue:hover .scroll-cue-text{background:rgba(255,255,255,.3);border-color:#fff}

.scroll-cue-mouse{
  width:22px;height:34px;border:2px solid rgba(255,255,255,.8);
  border-radius:999px;position:relative;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.16);
}
.scroll-cue-wheel{
  position:absolute;left:50%;top:7px;
  width:3px;height:7px;border-radius:2px;background:#fff;
  transform:translateX(-50%);
  animation:cueWheel 1.8s cubic-bezier(.4,0,.2,1) infinite;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.16);
}
.scroll-cue-arrow{
  width:11px;height:11px;
  border-right:2px solid rgba(255,255,255,.85);
  border-bottom:2px solid rgba(255,255,255,.85);
  transform:rotate(45deg);
  animation:cueArrow 1.8s ease-in-out infinite;
}

@keyframes cueFloat{
  0%,100%{transform:translate(-50%,0)}
  50%{transform:translate(-50%,-9px)}
}
@keyframes cueWheel{
  0%{opacity:0;top:6px}
  22%{opacity:1}
  70%{opacity:1;top:19px}
  100%{opacity:0;top:19px}
}
@keyframes cueArrow{
  0%,100%{opacity:.35;transform:rotate(45deg) translate(0,0)}
  50%{opacity:1;transform:rotate(45deg) translate(3px,3px)}
}
@media(max-width:1220px){
  .scroll-cue{display:none}
}

/* ===== 2. 計算機 ===== */
.calc-card{
  position:relative;z-index:2;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow);
  overflow:hidden;
}
.calc-body{padding:var(--card-pad)}

.field-label{font-size:var(--fs-sm);font-weight:700;display:block;margin-bottom:8px}
#size-label,#conds-label{font-size:var(--fs-base);font-weight:700;margin-bottom:12px}

.input{
  width:100%;height:48px;
  border:1.5px solid var(--line-2);border-radius:var(--r);
  padding:0 16px;
  font:700 var(--fs-base)/1 var(--sans);color:var(--ink);
  background:var(--surface);outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.input::placeholder{font-weight:500;color:var(--ink-3)}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-tint)}
.input::-webkit-outer-spin-button,
.input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.input[type=number]{-moz-appearance:textfield;appearance:textfield}

.size-tabs{margin-top:0}
.size-tabs .tab-list{width:fit-content;max-width:100%}
.size-tabs .tab{flex:0 0 auto;min-width:112px;font-size:var(--fs-base);padding:10px 22px}
@media(max-width:640px){
  .size-tabs .tab-list{width:100%}
  .size-tabs .tab{flex:1 1 0;min-width:0;padding:11px 12px}
}
.size-tabs .tab-panel{margin-top:12px}

.input-affix{position:relative}
.affix{
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  color:var(--ink-3);font-size:var(--fs-base);font-weight:600;pointer-events:none;
}
.input-affix .input{padding-right:44px}

.field-grid{
  display:grid;grid-template-columns:1fr auto 1fr;
  gap:10px;align-items:center;
}
.field-x{
  position:relative;flex:none;
  width:16px;height:16px;
  color:var(--ink-3);
}
.field-x::before,
.field-x::after{
  content:"";position:absolute;left:50%;top:50%;
  width:15px;height:2px;border-radius:2px;
  background:currentColor;
}
.field-x::before{transform:translate(-50%,-50%) rotate(45deg)}
.field-x::after{transform:translate(-50%,-50%) rotate(-45deg)}
@media(max-width:420px){
  .field-grid{gap:6px}
  .input-affix .affix{font-size:var(--fs-xs)}
}

.field-help{
  margin-top:6px;
  font-size:var(--fs-xs);
  color:var(--ink-3);
  line-height:1.6;
}

.input-hint-msg{
  font-size:var(--fs-sm);color:#B3271A;margin-top:8px;display:none;line-height:1.5;
  background:#FFF0F0;padding:9px 12px;border-radius:6px;border:1px solid #FFD0D0;
}
.input-hint-msg.show{display:block}
.sys-error-msg{
  display:none;font-size:var(--fs-base);font-weight:700;color:#E23B22;
  padding:0 var(--card-pad) 12px;line-height:1.5;
}

.sys-error-retry{
  margin-left:8px;
  border:1px solid currentColor;
  background:transparent;color:inherit;
  font-family:inherit;font-size:var(--fs-sm);font-weight:700;
  padding:4px 12px;border-radius:999px;
  transition:background .2s,opacity .2s;
}
.sys-error-retry:hover{background:rgba(226,59,34,.1)}
.sys-error-retry:disabled{opacity:.6}

.conds-wrapper{margin-top:20px}
.cond-btn{
  display:inline-flex;align-items:center;justify-content:center;height:48px;
  border:1.5px solid var(--line-2);border-radius:var(--r);
  background:var(--paper);color:var(--ink-2);
  font-family:inherit;font-size:var(--fs-base);font-weight:700;
  transition:background .2s,color .2s,border-color .2s,box-shadow .18s ease,transform .18s ease;
  user-select:none;
}
.cond-btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px);box-shadow:0 6px 14px rgba(37,96,216,.18)}
.cond-btn[aria-pressed="true"]{
  background-image:var(--accent-grad);background-color:var(--accent);color:#fff;border-color:var(--accent);
  box-shadow:0 2px 8px rgba(37,96,216,.3);
}
.conds-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:900px){.conds-grid{grid-template-columns:repeat(2,1fr)}}

.calc-actions{
  padding:0 var(--card-pad) var(--card-pad);
  display:grid;grid-template-columns:4fr 1fr;gap:10px;
}
.calc-actions .btn{min-width:0;padding:0 12px}
@media(max-width:640px){
  .calc-actions .btn{padding:0 8px}
  .calc-actions .btn:last-child{font-size:var(--fs-base)}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:50px;padding:0 26px;border:0;border-radius:var(--r);
  background-image:var(--accent-grad);background-color:var(--accent);
  color:#fff;
  font-family:inherit;font-size:var(--fs-base);font-weight:700;
  text-decoration:none;
  transition:background-color .2s,color .2s,border-color .2s,
             transform .18s ease,box-shadow .18s ease;
}
.btn:hover{
  background-image:none;background-color:var(--accent-hover);
  color:#fff;transform:translateY(-3px);
  box-shadow:0 8px 18px rgba(37,96,216,.18);
}
.btn:active{transform:translateY(-1px)}

.btn-ghost{background-image:none;background-color:transparent;color:var(--ink-2);border:1.5px solid var(--line-2)}
.btn-ghost:hover{
  background-image:var(--accent-grad);background-color:var(--accent);
  border-color:transparent;color:#fff;transform:translateY(-3px);
}
.more-btn{
  height:46px;
  background-image:var(--accent-grad);background-color:var(--accent);
  color:#fff;border:0;
}
.more-btn:hover{
  background-image:none;background-color:var(--accent-hover);
  color:#fff;border:0;
}

.result{
  display:grid;grid-template-rows:0fr;opacity:0;
  background:var(--accent-tint);
  transition:grid-template-rows .65s cubic-bezier(.16,1,.3,1),opacity .5s ease;
  overflow:hidden;
}
.result.is-on{grid-template-rows:1fr;opacity:1}
.result-inner{
  min-height:0;padding:0 var(--card-pad);overflow:hidden;
  transition:padding .65s cubic-bezier(.16,1,.3,1);
}
.result.is-on .result-inner{padding:var(--card-pad)}
.result-header-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
@media(max-width:860px){
  .result-header-row{flex-direction:column;align-items:flex-start;gap:6px}
  .result-disclaimer-text{line-height:1.6}
}
.result-heading{font-size:var(--fs-base);font-weight:700;color:var(--ink)}
.result-disclaimer-text{
  display:block;width:100%;
  margin-top:26px;
  font-size:var(--fs-xs);color:var(--ink-2);line-height:1.7;
}
.disclaimer-title{display:block;font-weight:700;color:var(--ink);margin-bottom:4px}
.disclaimer-list{display:block}
.disclaimer-list > span{
  display:block;
  padding-left:1.4em;text-indent:-1.4em;
}
.disclaimer-list > span + span{margin-top:3px}
.result-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:14px;margin:12px 0 16px}
@media(max-width:560px){
  .result-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .result-card:last-child{grid-column:1 / -1}
}

.result-card{
  background:var(--surface);padding:14px 16px;border-radius:var(--r);
  border:1px solid var(--line);text-align:center;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  opacity:0;transform:translateY(15px);
  transition:opacity .5s ease,transform .5s ease;
}
@supports(grid-template-rows:subgrid){
  .result-stats{grid-template-rows:auto auto}
  .result-card{display:grid;grid-row:span 2;grid-template-rows:subgrid;justify-items:center;align-items:center}
}
.result.is-on .result-card{opacity:1;transform:none}
.result.is-on .result-card:nth-child(1){transition-delay:.15s}
.result.is-on .result-card:nth-child(2){transition-delay:.25s}
.result.is-on .result-card:nth-child(3){transition-delay:.35s}
.result-card.is-primary{border-color:var(--accent);box-shadow:0 2px 10px rgba(37,96,216,.16)}
.result-card-title{
  font-size:var(--fs-xs);color:var(--ink-3);font-weight:700;
  line-height:1.4;margin-bottom:0;
}
.result-card-value{
  font-size:var(--fs-xl);font-weight:800;color:var(--accent-deep);
  line-height:1.25;font-variant-numeric:tabular-nums;
  overflow-wrap:anywhere;
}
.result-card-value.is-text{font-variant-numeric:normal}

.scale-section-title{font-size:var(--fs-sm);font-weight:700;color:var(--ink-2);margin:20px 0 8px}
.scale-track{
  display:grid;grid-template-columns:repeat(3,1fr);gap:10px;
  align-items:end;
  padding-top:13px;}
@media(max-width:560px){
  .scale-track{
    display:flex;flex-wrap:wrap;justify-content:center;
    gap:8px;
  }
  .scale-step{flex:0 1 calc(25% - 6px);min-width:0}
}
@media(max-width:440px){
  .scale-track{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
  .scale-step{flex:none}
}
@media(max-width:640px){.scale-track{gap:6px}}

.scale-step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:16px 8px 12px;text-align:center;position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  transition:background .25s,border-color .25s,transform .25s,box-shadow .25s;
}
@supports(grid-template-rows:subgrid){
  .scale-track{grid-template-rows:auto auto}
  .scale-step{display:grid;grid-row:span 2;grid-template-rows:subgrid;gap:2px;justify-items:center;align-items:center}
}

.scale-step.is-hit{
  background-image:var(--accent-grad);background-color:var(--accent);border-color:var(--accent);color:#fff;
  box-shadow:0 4px 14px rgba(37,96,216,.32);
}
.scale-step.is-hit p{color:#fff}

.scale-step{animation:stepIn .34s cubic-bezier(.16,1,.3,1) both}
.scale-step.is-out{animation:stepOut .22s ease both}
@keyframes stepIn{
  from{opacity:0;transform:translateY(10px) scale(.96)}
  to{opacity:1;transform:none}
}
@keyframes stepOut{
  from{opacity:1;transform:none}
  to{opacity:0;transform:translateY(8px) scale(.96)}
}

.scale-badge{
  position:absolute;top:0;left:50%;
  transform:translate(-50%,-50%);
  white-space:nowrap;
  font-size:var(--fs-xs);font-weight:800;line-height:1.2;
  background:linear-gradient(135deg,#B8891F 0%,#F0D583 10%,#D9AE3E 30%,#B8891F 100%);
  color:#fff ;padding:3px 10px;border-radius:999px;
  box-shadow:0 2px 6px rgba(0,0,0,.22);
}
@media(max-width:480px){
  .scale-badge{padding:2px 7px;font-size:calc(var(--fs-xs) * .92)}
}

.scale-ping{font-size:var(--fs-sm);font-weight:800;line-height:1.35;overflow-wrap:anywhere}
.scale-kw{font-size:var(--fs-xs);opacity:.85;font-variant-numeric:tabular-nums;line-height:1.35}
.scale-toggle-wrap{text-align:center;margin-top:12px}
.scale-toggle-btn{
  display:inline-flex;align-items:center;gap:7px;
  background:transparent;border:0;font-family:inherit;
  font-size:var(--fs-xs);color:var(--ink-3);font-weight:600;padding:6px 12px;transition:color .2s;
}
.scale-toggle-btn:hover{color:var(--accent)}

.toggle-arrow{
  width:9px;height:9px;flex:none;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  border-radius:0 0 2px 0;
  transform:translateY(-2px) rotate(45deg);
  transition:transform .28s cubic-bezier(.16,1,.3,1);
}
.scale-toggle-btn.is-open .toggle-arrow{transform:translateY(1px) rotate(225deg)}
.toggle-text{line-height:1}

/* ===== 3. 推薦商品 ===== */
.reco{
  display:grid;grid-template-rows:0fr;opacity:0;
  background:var(--surface);
  transition:grid-template-rows .65s cubic-bezier(.16,1,.3,1),opacity .5s ease;
  overflow:hidden;
}
.reco.is-on{grid-template-rows:1fr;opacity:1}
.reco-inner{
  min-height:0;overflow:hidden;
  padding:0 var(--card-pad);
  transition:padding .65s cubic-bezier(.16,1,.3,1);
}
.reco.is-on .reco-inner{padding:var(--card-pad)}
.reco-title{font-size:var(--fs-xl);font-weight:800;letter-spacing:-.01em;margin-top:2px}
.reco-meta{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:8px;margin-top:8px}
@media(max-width:860px){
  .reco-meta{flex-direction:column;align-items:flex-start;gap:6px}
}
.reco-meta .section-lede{margin:0;font-size:var(--fs-base);text-align:left}
.reco-note{margin:0;font-size:var(--fs-xs);color:var(--accent)}
.reco-more{
  display:grid;gap:10px;margin-top:24px;
  grid-template-columns:repeat(auto-fit,minmax(15.5rem,1fr));
}
.more-btn{width:100%;font-size:var(--fs-base);padding:0 16px;text-align:center}
.cards-container-wrapper{position:relative;margin-top:18px}

.reco-dots{display:none;justify-content:center;align-items:center;gap:8px;margin-top:16px}
.reco-dot{width:8px;height:8px;border-radius:50%;background:var(--line-2);border:0;padding:0;transition:all .3s ease}
.reco-dot.is-active{background-image:var(--accent-grad);background-color:var(--accent);width:24px;border-radius:999px}
.reco-arrow{display:none}

.grid{display:grid;gap:12px;grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:1000px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:768px){
  .calc-card,.card,.result-card,.scale-step,
  .subsidy-card,.warn-banner,.promo-slide,
  .fig-item,.tip,.cmp-wrap,.energy{border-radius:12px}

  .tab-list{margin-bottom:20px}

  #subsidy{padding-top:0}
  .tabs.size-tabs{margin-top:0}
}

@media(max-width:768px){
  .grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
    overflow:visible;
    margin-inline:0;padding-inline:0;padding-block:0;
  }
  .card{width:auto}
  .reco-dots{display:none}
  .reco-arrow{display:none}
}

@keyframes cardEntrance{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.card{
  height:100%;
  background:var(--surface);border:0;box-shadow:var(--card-shadow);
  border-radius:var(--r);overflow:hidden;text-decoration:none;
  display:flex;flex-direction:column;opacity:0;
  transition:transform .2s ease,box-shadow .2s ease;
}
.reco.is-on .card{animation:cardEntrance .6s cubic-bezier(.16,1,.3,1) forwards}
.reco.is-on .card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(37,96,216,.18)}

.card-thumb{
  aspect-ratio:1/1;position:relative;
  display:grid;place-items:center;
  background-color:var(--ph-bg);
  background-image:var(--ph-logo);
  background-size:62% auto;
  background-position:center;
  background-repeat:no-repeat;
}
.card-thumb img{width:100%;height:100%;object-fit:contain}

.thumb-mask{
  position:absolute;inset:0;z-index:2;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.45);
  color:#fff;font-size:var(--fs-base);font-weight:800;letter-spacing:.06em;
  text-shadow:0 1px 4px rgba(0,0,0,.5);
}
.card.is-soldout .card-name{color:var(--ink-2)}
.card.is-soldout{opacity:.86}
.card.is-soldout:hover{opacity:1}
.card-info{
  padding:12px 12px 14px;flex:1;
  display:flex;flex-direction:column;justify-content:flex-start;
}
.card-flags{
  display:flex;flex-wrap:wrap;gap:4px;
  margin-top:6px;
  margin-bottom:0;
}

.card-flag{
  display:inline-block;
  font-size:12px;font-weight:700;line-height:1.3;
  padding:2px 6px;border-radius:3px;
  background-image:var(--accent-grad);background-color:var(--accent);
  color:#fff;white-space:nowrap;
}
.card-flag.is-accent{
  background-image:none;
  background-color:var(--brand);
}
.card-flag.is-placeholder{
  visibility:hidden;
  background:none;border:0;
  min-height:1.4em;padding:2px 0;
}
.card-name{margin-bottom:0}

.card-name{
  font-size:var(--fs-sm);line-height:1.45;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:2.9em;
}
.cards-empty-title{font-size:var(--fs-base);font-weight:700;color:var(--ink)}
.cards-empty{
  grid-column:1/-1;width:100%;
  border:1px dashed var(--line-2);border-radius:var(--r);
  padding:28px 20px;text-align:center;color:var(--ink-2);font-size:var(--fs-base);line-height:1.8;
}

/* ===== 4. 補助專區 ===== */
.subsidy-grid{
  display:grid;gap:14px;margin-top:24px;
  grid-template-columns:repeat(2,minmax(0,1fr));
}
.subsidy-card{
  position:relative;display:flex;align-items:flex-end;
  border-radius:var(--r-lg);overflow:hidden;text-decoration:none;
  color:#fff;aspect-ratio:5 / 2;min-height:0;
  box-shadow:var(--card-shadow);
  transition:transform .22s ease,box-shadow .22s ease;
  isolation:isolate;
}
.subsidy-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(37,96,216,.22)}

.subsidy-card{
  background-color:var(--ph-bg);
  background-image:var(--ph-logo);
  background-size:var(--ph-logo-size);
  background-position:var(--ph-logo-pos);
  background-repeat:no-repeat;
}

.subsidy-img{
  position:absolute;inset:0;z-index:0;
  width:100%;height:100%;object-fit:cover;
}
.ext-arrow{font-size:var(--fs-sm);line-height:1;transition:transform .18s ease}

@media(max-width:640px){
  .subsidy-grid{grid-template-columns:1fr}
}

/* ===== 5. 精選活動輪播 ===== */
.promo{margin-top:24px}
.promo-wrap{position:relative}
.promo-track{
  display:flex;gap:12px;
  overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;
  border-radius:var(--r-lg);
  -ms-overflow-style:none;scrollbar-width:none;
}
.promo-track::-webkit-scrollbar{display:none}

.promo-slide{
  position:relative;flex:0 0 100%;scroll-snap-align:center;
  aspect-ratio:var(--promo-ratio);
  border-radius:var(--r-lg);overflow:hidden;
  display:grid;place-items:center;
  text-decoration:none;color:#fff;
  background-color:var(--ph-bg);
  background-image:var(--ph-logo);
  background-size:var(--ph-logo-size);
  background-position:var(--ph-logo-pos);
  background-repeat:no-repeat;
}
.promo-slide.is-loaded{
  background-image:var(--bg),var(--ph-logo);
  background-size:cover,var(--ph-logo-size);
  background-position:center,var(--ph-logo-pos);
  background-repeat:no-repeat,no-repeat;
}

.promo-label{
  position:absolute;width:1px;height:1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.promo-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;
  width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.94);border:1px solid var(--line);
  box-shadow:0 2px 12px rgba(0,0,0,.18);
  color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s,opacity .2s;
}
.promo-arrow::before{
  content:"";
  width:9px;height:9px;
  border-top:2px solid currentColor;
  border-right:2px solid currentColor;
  border-radius:0 2px 0 0;
}
.promo-arrow.prev::before{transform:translateX(2px) rotate(-135deg)}
.promo-arrow.next::before{transform:translateX(-2px) rotate(45deg)}
.promo-arrow:hover{background:#fff}
.promo-arrow.prev{left:4px}
.promo-arrow.next{right:4px}
@media(max-width:640px){
  .promo-arrow{width:34px;height:34px;font-size:var(--fs-base)}
  .promo-arrow.prev{left:-2px}
  .promo-arrow.next{right:-2px}
}

.promo-dots{display:flex;justify-content:center;gap:8px;margin-top:16px}
.promo-dot{
  width:8px;height:8px;border-radius:999px;border:0;padding:0;
  background:var(--line-2);transition:width .25s ease,background .25s ease;
}
.promo-dot.is-active{width:26px;background-image:var(--accent-grad);background-color:var(--accent)}

/* ===== 6. 選購指南 ===== */

.cmp-wrap{
  margin-top:16px;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;background:var(--paper);
}
.cmp-table{
  width:100%;border-collapse:collapse;font-size:var(--fs-base);
  table-layout:fixed;
}
.cmp-table th,.cmp-table td{overflow-wrap:anywhere;word-break:break-word}
.cmp-table th,.cmp-table td{
  padding:14px 18px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);
}
.cmp-table thead th{
  background:var(--ink);color:#fff;
  font-size:var(--fs-base);font-weight:800;white-space:nowrap;
  border-bottom:0;
  vertical-align:top;
}
.cmp-table thead th.is-pick{background-image:var(--accent-grad);background-color:var(--accent)}
.cmp-table thead th.cmp-key{width:22%}
.cmp-tag{
  display:inline-flex;align-items:center;gap:4px;margin-left:8px;
  background:linear-gradient(135deg,#F0D583 0%,#D9AE3E 52%,#B8891F 100%);
  color:#fff;
  font-size:var(--fs-xs);font-weight:800;padding:3px 9px;border-radius:999px;
  box-shadow:0 1px 3px rgba(0,0,0,.2);
  white-space:nowrap;
}
.cmp-tag::before{content:"★";font-size:var(--fs-xs);line-height:1}
.cmp-table tbody th[scope="row"]{
  font-weight:800;color:var(--ink);background:var(--surface);
  white-space:nowrap;width:22%;
}
.cmp-table tbody td{background:var(--surface);color:var(--ink-2);line-height:1.7}
.cmp-table tbody td.is-pick{
  background:var(--accent-tint);color:var(--ink);font-weight:600;
}
.cmp-table tbody tr:last-child th,
.cmp-table tbody tr:last-child td{border-bottom:0}

.cmp-2col thead th{width:50%}
.cmp-2col tbody td{width:50%}

.cmp-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp-table{min-width:0}

@media(max-width:860px){
  .cmp-table{font-size:var(--fs-sm)}
  .cmp-table tbody th[scope="row"]{
    font-size:var(--fs-sm);
    width:24%;white-space:normal;line-height:1.4;
  }

  .cmp-table thead th{
    font-size:var(--fs-base);white-space:normal;
  }
  .cmp-table thead th.cmp-key{width:24%}

  .cmp-table th,.cmp-table td{
    vertical-align:top;
    padding:11px 12px;
  }

  .cmp-tag{padding:3px 6px;gap:0;font-size:0}
  .cmp-tag::before{font-size:var(--fs-xs)}
}

@media(max-width:420px){
  .cmp-table{font-size:var(--fs-xs)}
  .cmp-table tbody th[scope="row"]{font-size:var(--fs-xs)}
  .cmp-table thead th{font-size:var(--fs-sm)}
  .cmp-table th,.cmp-table td{padding:10px 9px}
}

.cspf-intro{
  display:grid;gap:14px;margin-top:16px;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
}
@media(max-width:860px){.cspf-intro{grid-template-columns:1fr}}

.cspf-def{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px 22px;
}
.cspf-def-title{font-size:var(--fs-lg);font-weight:800;margin-bottom:10px;letter-spacing:-.01em}
.cspf-def p{font-size:var(--fs-base);color:var(--ink-2);line-height:1.85}
.cspf-def p + p{margin-top:8px}
.cspf-def strong{color:var(--ink);font-weight:800}

.cspf-points{display:flex;flex-direction:column;gap:10px}
.cspf-points li{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);padding:14px 18px;
  flex:1;
}
.cspf-num{
  flex:none;width:28px;height:28px;border-radius:50%;
  background:var(--info);color:#fff;
  font-size:var(--fs-sm);font-weight:800;
  display:grid;place-items:center;
}
.cspf-point-title{font-size:var(--fs-base);font-weight:800;margin-bottom:3px}
.cspf-points p:last-child{font-size:var(--fs-sm);color:var(--ink-2);line-height:1.65}

.energy{
  margin-top:16px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(1.125rem,3.4vw,1.5rem);
}
.energy-head{margin-bottom:16px}
.energy-title{font-size:var(--fs-lg);font-weight:800;letter-spacing:-.01em;line-height:1.35}
.energy-sub{font-size:var(--fs-sm);color:var(--ink-2);margin-top:4px}

.energy{
  --bulb:72px;
  --bulb-overlap:22px;
  --bar-h:40px;
  --cursor-w:6px;
  --cursor-h:9px;
}
.energy-scale-row{
  display:flex;align-items:center;gap:0;
  position:relative;
}

.energy-note{
  margin-top:20px;
  font-size:var(--fs-xs);color:var(--ink-3);line-height:1.7;
}
.energy-icon{
  flex:none;
  width:var(--bulb);
  aspect-ratio:1;
  margin-right:calc(var(--bulb-overlap) * -1);  position:relative;z-index:2;
  border-radius:50%;
  background-image:url("./assets/common/energy-icon.svg?v=260929a");
  background-size:contain;
  background-position:center;
  background-repeat:no-repeat;
}
@media(max-width:900px){
  .energy{--bulb:50px;--bulb-overlap:15px;--cursor-w:5px;--cursor-h:8px}
}
@media(max-width:640px){
  .energy{--bulb:50px;--bulb-overlap:18px;--bar-h:32px;--cursor-w:4px;--cursor-h:7px}

}
@keyframes cursorRunEven{
  0%              {transform:translateX(0)}
  25%, 41.7%      {transform:translateX(400%)}
  91.7%, 100%     {transform:translateX(0)}
}

.energy-scale{flex:1;min-width:0}

.energy-scale{
  display:grid;
  grid-template-columns:1fr 1.3fr 1.6fr 1.9fr 2.2fr;
  gap:0;
  border-radius:999px;
  overflow:hidden;}
.energy-step{
  height:var(--bar-h);
  display:flex;align-items:center;justify-content:center;
  color:#fff;
}
.energy-step:first-child{border-radius:999px 0 0 999px}
.energy-step:last-child{border-radius:0 999px 999px 0}

.lv-num{
  font-size:clamp(0.9375rem,2.2vw,1.125rem);font-weight:800;line-height:1;
  color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3);
}
.lv3 .lv-num,.lv4 .lv-num{text-shadow:0 1px 3px rgba(0,0,0,.5)}

.lv1{background:#128A3F}
.lv2{background:#5AAE3C}
.lv3{background:#E0C62B}
.lv4{background:#F08A1D}
.lv5{background:#E23B22}

.energy-cursor-row{
  display:grid;
  grid-template-columns:1fr 1.3fr 1.6fr 1.9fr 2.2fr;
  margin-top:0;
  margin-left:calc(var(--bulb) - var(--bulb-overlap));
  pointer-events:none;
}
.energy-cursor{
  grid-column:1;
  width:100%;height:var(--cursor-h);
  position:relative;
}
.js-reveal .energy.is-visible .energy-cursor{
  animation:cursorRun 4.8s linear 1 both;
}
.energy-cursor::before{
  content:"";position:absolute;
  left:50%;top:0;transform:translateX(-50%);
  width:0;height:0;
  border-left:var(--cursor-w) solid transparent;
  border-right:var(--cursor-w) solid transparent;
  border-bottom:var(--cursor-h) solid #128A3F;}
.js-reveal .energy.is-visible .energy-cursor::before{
  animation:cursorHue 4.8s linear 1 both;
}

@keyframes cursorRun{
  0%              {transform:translateX(0)}
  25%, 41.7%      {transform:translateX(640%)}
  91.7%, 100%     {transform:translateX(0)}
}
@keyframes cursorHue{
  0%,1.94%       {border-bottom-color:#128A3F}
  1.95%,7.02%    {border-bottom-color:#5AAE3C}
  7.03%,13.27%   {border-bottom-color:#E0C62B}
  13.28%,20.69%  {border-bottom-color:#F08A1D}
  20.70%,50.28%  {border-bottom-color:#E23B22}
  50.29%,65.13%  {border-bottom-color:#F08A1D}
  65.14%,77.63%  {border-bottom-color:#E0C62B}
  77.64%,87.78%  {border-bottom-color:#5AAE3C}
  87.79%,100%    {border-bottom-color:#128A3F}
}

.energy-icon{
  border-radius:50%;
  background-color:#128A3F;
}
.js-reveal .energy.is-visible .energy-icon{
  animation:bulbHue 4.8s linear 1 both;
}
@keyframes bulbHue{
  0%       {background-color:#128A3F}
  4.49%    {background-color:#5AAE3C}
  10.16%   {background-color:#E0C62B}
  16.99%   {background-color:#F08A1D}
  25%      {background-color:#E23B22}
  41.7%    {background-color:#E23B22}  57.72%   {background-color:#F08A1D}
  71.39%   {background-color:#E0C62B}
  82.72%   {background-color:#5AAE3C}
  91.7%    {background-color:#128A3F}
  100%     {background-color:#128A3F}}

.energy-legend{
  display:grid;
  grid-template-columns:1fr 1.3fr 1.6fr 1.9fr 2.2fr;
  margin-top:8px;
  margin-left:calc(var(--bulb) - var(--bulb-overlap));
  font-size:var(--fs-xs);font-weight:700;color:var(--ink-3);
  text-align:center;
}

@media(max-width:768px){
  .cspf-def p{font-size:var(--fs-sm)}
  .reco-meta .section-lede{font-size:var(--fs-sm)}
  .btn,.more-btn{font-size:var(--fs-sm)}
  .cond-btn{font-size:var(--fs-sm)}
  .tab{font-size:var(--fs-sm)}
}

@media(max-width:640px){
  .energy-scale,
  .energy-cursor-row,
  .energy-legend{grid-template-columns:repeat(5,1fr)}
  .energy-cursor{animation-name:cursorRunEven}
}

.energy-legend > span{white-space:nowrap}

@media(max-width:560px){
  .energy-legend{
    display:flex;justify-content:space-between;
    gap:8px;
  }
  .energy-legend > span:not(.legend-min):not(.legend-max){display:none}

  .energy-cursor-row{display:none}
}

.legend-min,.legend-max{
  justify-self:center;
  padding:3px 9px;border-radius:999px;
  display:inline-flex;align-items:center;gap:4px;
  white-space:nowrap;
  opacity:0;transform:translateY(3px);
}
.js-reveal .energy.is-visible .legend-min,
.js-reveal .energy.is-visible .legend-max{
  animation-duration:4.8s;
  animation-timing-function:linear;
  animation-fill-mode:both;
  animation-iteration-count:1;
}
.js-reveal .energy.is-visible .legend-min{animation-name:legendMin}
.js-reveal .energy.is-visible .legend-max{animation-name:legendMax}

.legend-min::after{
  content:"★";
  font-size:var(--fs-xs);line-height:1;
  width:0;overflow:hidden;opacity:0;
  order:-1;}

.legend-min{position:relative;z-index:0}
.legend-min::before{
  content:"";position:absolute;inset:0;z-index:-1;
  border-radius:999px;
  background:linear-gradient(135deg,#F0D583 0%,#D9AE3E 52%,#B8891F 100%);
  box-shadow:0 1px 3px rgba(0,0,0,.2);
  opacity:0;
}
.js-reveal .energy.is-visible .legend-min::before{
  animation:legendPill 4.8s linear 1 both;
}
.js-reveal .energy.is-visible .legend-min::after{
  animation:legendStar 4.8s linear 1 both;
}
@keyframes legendStar{
  0%,91.7%   {width:0;opacity:0}
  96%,100%   {width:1em;opacity:1}
}

@media(max-width:768px){
  .js-reveal .energy.is-visible .legend-min,
  .js-reveal .energy.is-visible .legend-min::before,
  .js-reveal .energy.is-visible .legend-min::after,
  .js-reveal .energy.is-visible .legend-max{animation:none}

  .legend-min{opacity:1;transform:none;color:#fff}
  .legend-min::before{opacity:1}
  .legend-min::after{width:1em;opacity:1}
  .legend-max{opacity:1;transform:none}
}
@keyframes legendPill{
  0%,91.7%   {opacity:0}
  96%,100%   {opacity:1}
}

@keyframes legendMin{
  0%          {opacity:0;transform:translateY(3px)}
  3%,91.7%    {opacity:1;transform:none;color:var(--ink-3)}
  96%         {opacity:1;transform:none;color:var(--ink-3)}
  99%,100%    {opacity:1;transform:none;color:#fff}
}
@keyframes legendMax{
  0%,20%      {opacity:0;transform:translateY(3px)}
  25%,100%    {opacity:1;transform:none}
}

.energy-scale{position:relative}
.energy-scale::after{
  content:"";
  position:absolute;inset:0;z-index:2;
  background:var(--surface);
  transform-origin:right center;
  transform:scaleX(1);
  transition:transform 1.2s linear;
  will-change:transform;
  pointer-events:none;
}
.js-reveal .energy.is-visible .energy-scale::after{transform:scaleX(0)}

.js-reveal .energy .energy-icon,
.js-reveal .energy .energy-legend{
  opacity:0;transition:opacity .4s ease;
}
.js-reveal .energy.is-visible .energy-icon{opacity:1;transition-delay:.1s}
.js-reveal .energy.is-visible .energy-legend{opacity:1;transition-delay:1.0s}

.tips{
  display:grid;gap:10px;margin-top:16px;
  grid-template-columns:repeat(2,minmax(0,1fr));
  counter-reset:none;
}
@media(max-width:768px){.tips{grid-template-columns:1fr}}
.tip{
  display:flex;gap:13px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);padding:15px 17px;
}
.tip:last-child{grid-column:1 / -1}
@media(max-width:768px){.tip:last-child{grid-column:auto}}
.tip-num{
  flex:none;width:26px;height:26px;border-radius:50%;
  background-image:var(--accent-grad);background-color:var(--accent);color:#fff;
  font-size:var(--fs-sm);font-weight:800;
  display:grid;place-items:center;margin-top:1px;
}
.tip-title{font-size:var(--fs-base);font-weight:800;margin-bottom:3px}
.tip-desc{font-size:var(--fs-sm);color:var(--ink-2);line-height:1.7}

/* ===== 7. 安裝須知(分頁) ===== */
.tabs{margin-top:24px}

.tab-list{
  position:relative;
  display:flex;gap:4px;
  background:var(--paper);border:1px solid var(--line);
  border-radius:999px;padding:4px;
  overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none;
}
.tab-ind{
  position:absolute;top:4px;bottom:4px;left:0;
  width:0;border-radius:999px;
  background-image:var(--accent-grad);background-color:var(--accent);
  box-shadow:0 2px 8px rgba(37,96,216,.28);
  transform:translateX(0);
  transition:transform .38s cubic-bezier(.16,1,.3,1),
             width .38s cubic-bezier(.16,1,.3,1);
  pointer-events:none;z-index:0;
}
.tab-list::-webkit-scrollbar{display:none}
.tab{
  position:relative;z-index:1;
  flex:1 1 0;min-width:96px;white-space:nowrap;
  border:0;background:transparent;border-radius:999px;
  padding:11px 20px;
  font-family:inherit;font-size:var(--fs-base);font-weight:700;color:var(--ink-3);
  transition:background .2s,color .2s,box-shadow .2s,transform .18s ease;
}
.tab:hover{color:var(--ink)}
.tab[aria-selected="true"]{background:transparent;color:#fff;box-shadow:none}

.tab-panel{
  margin-top:22px;
  animation:tabIn .3s cubic-bezier(.16,1,.3,1) both;
}
.tab-panel[hidden]{display:none}
@keyframes tabIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.panel-figs{display:grid;grid-template-columns:1fr;gap:10px}

.fig-item{
  border:1px solid var(--line);
  border-radius:var(--r);
  overflow:hidden;
  background:var(--surface);
}
.fig-item + .fig-item{margin-top:0}

.fig-toggle{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 18px;
  border:0;background:transparent;
  font-family:inherit;font-size:var(--fs-base);font-weight:700;
  color:var(--ink);text-align:left;
  transition:background .2s,color .2s;
}
.fig-toggle:hover{background:var(--accent-tint)}
.fig-toggle[aria-expanded="true"]{
  background:var(--accent-tint);
  color:var(--accent-deep);
}
.fig-toggle-arrow{
  flex:none;width:9px;height:9px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  border-radius:0 0 2px 0;
  transform:translateY(-2px) rotate(45deg);
  transition:transform .28s cubic-bezier(.16,1,.3,1);
}
.fig-toggle[aria-expanded="true"] .fig-toggle-arrow{
  transform:translateY(1px) rotate(225deg);
}

.fig-panel{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows .32s cubic-bezier(.16,1,.3,1);
}
.fig-panel.is-open{grid-template-rows:1fr}
.fig-panel-inner{overflow:hidden;min-height:0}
.fig-panel.is-open .fig-panel-inner{padding:0 18px 18px}

.panel-fig{
  display:block;width:100%;padding:0;border:0;background:transparent;
  line-height:0;  transition:transform .2s ease,box-shadow .2s ease;
}
.panel-img{
  display:block;width:100%;height:auto;  border-radius:var(--r-sm);
  background-color:var(--ph-bg);
  background-image:var(--ph-logo);
  background-size:var(--ph-logo-size);
  background-position:var(--ph-logo-pos);
  background-repeat:no-repeat;
}
@media(max-width:900px){
  .panel-fig{cursor:zoom-in}
  .panel-fig:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(37,96,216,.2)}
}
@media(min-width:901px){
  .panel-fig{pointer-events:none;cursor:default}
}
@media (prefers-reduced-motion: reduce){
  .fig-panel,.fig-toggle-arrow{transition:none}
}

.install-fixed{margin-top:40px}

/* ===== 離島警示 banner ===== */
.warn-banner{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  display:flex;align-items:center;
  aspect-ratio:5 / 1;min-height:0;
  background-color:var(--ph-bg);
  background-image:var(--ph-logo);
  background-size:var(--ph-logo-size);
  background-position:var(--ph-logo-pos);
  background-repeat:no-repeat;
}
.warn-banner-img{
  position:absolute;inset:0;z-index:0;
  width:100%;height:100%;object-fit:cover;
}
.lightbox{
  position:fixed;inset:0;z-index:300;
  display:flex;align-items:center;justify-content:center;
  padding:clamp(16px,4vw,48px);
  background:rgba(12,16,22,.86);
  opacity:0;transition:opacity .22s ease;
}
.lightbox.is-on{opacity:1}
.lightbox-img{
  max-width:100%;max-height:100%;
  border-radius:var(--r);
  box-shadow:0 20px 60px rgba(0,0,0,.5);
  transform:scale(.97);transition:transform .22s cubic-bezier(.16,1,.3,1);
}
.lightbox.is-on .lightbox-img{transform:none}
.lightbox-close{
  position:absolute;top:14px;right:16px;
  width:44px;height:44px;border-radius:50%;
  border:0;background:rgba(255,255,255,.16);color:#fff;
  font-size:1.625rem;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease;
}
.lightbox-close:hover{background:rgba(255,255,255,.3)}

.to-top{
  position:fixed;right:16px;bottom:18px;z-index:180;
  width:46px;height:46px;border-radius:50%;
  border:0;background:var(--brand);
  box-shadow:0 6px 18px rgba(200,15,15,.34);
  display:none;align-items:center;justify-content:center;
  opacity:0;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,background .2s ease;
}
.to-top.is-on{opacity:1;transform:none}
.to-top:active{background:var(--brand-dark)}
.to-top-arrow{
  width:11px;height:11px;
  border-top:2.5px solid #fff;border-left:2.5px solid #fff;
  transform:rotate(45deg) translate(1px,1px);
}
@media(max-width:640px){
  .to-top{display:flex}
}

/* ===== 8. 頁尾 ===== */
.footer-cta{background:white;padding-block:28px}
.footer-cta .wrap{
  display:flex;justify-content:center;flex-wrap:wrap;gap:14px;
}
.footer-cta-btn{
  flex:0 1 300px;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:56px;padding:12px 26px;
  background-image:var(--accent-grad);background-color:var(--accent);
  color:#fff;font-size:var(--fs-base);font-weight:800;
  border-radius:var(--r);text-decoration:none;
  box-shadow:0 4px 14px rgba(37,96,216,.28);
  transition:transform .2s ease,box-shadow .2s ease;
}
.footer-cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(37,96,216,.36)}

.cta-arrows{display:inline-flex;align-items:center;gap:2px;flex:none}
.cta-arrows i{
  width:7px;height:7px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(-45deg);
  opacity:.25;
  animation:ctaArrow 1.4s ease-in-out infinite;
}
.cta-arrows i:nth-child(2){animation-delay:.18s}
.cta-arrows i:nth-child(3){animation-delay:.36s}
@keyframes ctaArrow{
  0%,60%,100%{opacity:.25}
  30%{opacity:1}
}

@media(max-width:720px){
  .footer-cta .wrap{flex-direction:column;align-items:stretch}
  .footer-cta-btn{flex:1 1 auto;width:100%}
}
@media(max-width:560px){
  .footer-cta{padding-block:20px}
  .footer-cta .wrap{gap:10px}
  .footer-cta-btn{min-height:50px;font-size:var(--fs-sm);padding:12px 18px}
}
.site-footer{
  background:var(--footer-bg);color:#fff;
  padding:40px 0 20px;
  scroll-margin-top:var(--header-h);
}
.footer-top{
  display:flex;align-items:center;justify-content:space-between;
  gap:40px;padding-bottom:40px;
  max-width:900px;margin:0 auto;
}
.footer-left{display:flex;flex-direction:column;gap:10px}
.footer-logo{max-width:250px;height:auto;display:block}

.social-icons{display:flex;gap:36px;margin:0 auto}
.social-icons a{display:block;transition:opacity .2s}
.social-icons a:hover{opacity:.8}
.social-icons a img{width:28px;height:28px;display:block}
.social-icons a.line-icon img{width:30px;height:30px}

.footer-disclaimer{
  font-size:var(--fs-xs);line-height:1.6;max-width:800px;
  color:rgba(255,255,255,.9);
}
.footer-divider{
  border:0;border-top:1px solid rgba(255,255,255,.8);
  margin:0 0 10px;
}
.footer-bottom{
  text-align:center;font-size:var(--fs-xs);color:#eaeaea;line-height:1.6;
}

@media(max-width:768px){
  .footer-top{flex-direction:column;align-items:flex-start;gap:30px}
  .footer-left{margin:0 auto}
  .footer-disclaimer{margin:0 auto;text-align:center}
}

/* ===== 減少動態偏好 ===== */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  .card{opacity:1}
  .result-card{opacity:1;transform:none}
  .scroll-cue,.scroll-cue-wheel,.scroll-cue-arrow{animation:none}
  .tab-ind{transition:none}
  .lightbox,.lightbox-img{transition:none}
  .panel-fig:hover{transform:none}
  .scale-step,.scale-step.is-out{animation:none}
    .js-reveal .energy .energy-icon,
  .js-reveal .energy .energy-legend{opacity:1;transition:none}
  .js-reveal .reveal,
  .js-reveal .reveal .subsidy-card,
  .js-reveal .reveal .cspf-points li,
    .js-reveal .reveal .conds-grid .cond-btn{opacity:1;transform:none;transition-delay:0s}
  .btn:hover,.btn-ghost:hover,.cond-btn:hover,.tab:hover,.card:hover,
  .subsidy-card:hover,.social-icon:hover,.nav-link:hover,
  .reco-arrow:hover{transform:none}
  .promo-track,.grid{scroll-behavior:auto}
  .cta-arrows i{animation:none;opacity:.7}
  .skip-link{transition:none}
}

@media(min-width:901px) {
  .panel-fig {
    pointer-events: none;    cursor: default;
  }
  .panel-fig:hover {
    transform: none;
    box-shadow: none;
  }
}

/* ===== 主舞台與卡片的視覺風格 ===== */
.stage{
  padding-top:var(--header-h);
  position:relative;
  --card-overlap:140px;
  --cue-gap:24px;
  --cue-h:101px;
  --hero-gap:32px;
  --hero-curve:220px;
  --hero-h:clamp(678px, calc(35vw + 291px), 998px);
  --hero-art-gap:0px;
}
.calc-card{--card-pad:clamp(1.25rem,4vw,1.875rem)}
@media(max-width:560px){
  .calc-card{--card-pad:12px}
}
@media(max-width:1220px){
  .stage{
    --card-overlap:150px;
    --cue-gap:0px;
    --cue-h:0px;
    --hero-gap:16px;
    --hero-art-gap:30px;
    --hero-h:calc(0.70 * 100vw + 120px);
  }
}
@media(max-width:768px){
  .stage{--hero-h:590px}
}
.stage .section{
  position:relative;z-index:2;
  padding-top:0;
  margin-top:calc(var(--card-overlap) * -1);
}

.js-reveal .stage .reveal{opacity:1;transform:none}

.stage{padding-bottom:40px;background:#FFFFFF}

.calc-card{
  border:0;
  border-radius:24px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:
    0 2px 8px rgba(37,96,216,.10),
    0 28px 60px -22px rgba(37,96,216,.30);
  margin-top:32px;
}

.result{background:rgba(224,236,255,.72)}
.reco{background:rgba(255,255,255,.5)}

.result-card,
.scale-step{
  border:0;
  border-radius:16px;
  box-shadow:0 1px 3px rgba(37,96,216,.08), 0 10px 22px -12px rgba(37,96,216,.22);
}
.scale-step.is-hit{
  box-shadow:0 4px 10px rgba(37,96,216,.2), 0 16px 32px -14px rgba(37,96,216,.45);
}

.card{
  border-radius:16px;
  box-shadow:0 2px 6px rgba(37,96,216,.07), 0 14px 30px -16px rgba(37,96,216,.24);
}

.input,
.cond-btn{
  border-color:#D8E4FA;
  background-color:rgba(255,255,255,.9);
}

.cond-btn{border-width:1px}
.cond-btn:hover{border-width:1px}
.cond-btn[aria-pressed="true"]{
  background-image:none;
  background-color:var(--accent-soft);
  color:var(--accent-deep);
  border-width:1px;
  border-color:var(--accent);
  box-shadow:0 4px 12px rgba(37,96,216,.16);
}
.cond-btn[aria-pressed="true"]:hover{
  background-color:var(--accent-tint-2);
  color:var(--accent-deep);
}
.tab-list{
  background:rgba(233,241,255,.8);
  border-color:transparent;
}

@media(max-width:640px){
  .calc-card{border-radius:18px;margin-top:22px}
  .calc-card{
    -webkit-backdrop-filter:none;
    backdrop-filter:none;
    background:rgba(255,255,255,.96);
  }
}

@media (prefers-reduced-motion: reduce){
  .calc-card{-webkit-backdrop-filter:none;backdrop-filter:none}
}