/* ===========================================================================
   Equipium / 立廚  —  site stylesheet
   Palette per  Equipium_網站色彩規範_v1.md
   =========================================================================== */

:root{
  /* brand */
  --navy-100:#E8EBEF; --navy-300:#A4B0C1; --navy-500:#1B3A63;
  --navy-700:#142C4A; --navy-900:#0E1D32;
  --blue-100:#E9EFF7; --blue-300:#A5BFDF; --blue-500:#1E5FAE;
  --blue-700:#174783; --blue-900:#0F3057;
  --gray-50:#F5F5F4;  --gray-100:#E7E6E4; --gray-300:#B9B7B3;
  --gray-500:#7A7873;  --gray-700:#4A4946; --gray-900:#232323;
  --silver:#BCC0C4;    --bronze:#6E4B33;   --white:#FFFFFF;
  --success:#2E7D4F;   --error:#C23B33;    --warning:#B8791C;

  /* semantic */
  --bg:            var(--white);
  --bg-alt:        var(--gray-50);
  --bg-navy:       var(--navy-500);
  --text:          var(--gray-900);
  --text-soft:     var(--gray-500);
  --line:          var(--gray-300);
  --link:          var(--blue-500);
  --link-hover:    var(--blue-700);

  --maxw: 1200px;
  --pad: clamp(1rem, 4vw, 2.5rem);
  --radius: 4px;
  --shadow-sm: 0 1px 3px rgba(14,29,50,.08), 0 1px 2px rgba(14,29,50,.06);
  --shadow-md: 0 6px 24px rgba(14,29,50,.10);
  --font: "Helvetica Neue", Arial, "Noto Sans TC", "PingFang TC",
          "Microsoft JhengHei", "微軟正黑體", system-ui, sans-serif;
  --serif: "Noto Serif TC", "Songti TC", Georgia, "Times New Roman", serif;
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--text);background:var(--bg);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none}
a:hover{color:var(--link-hover);text-decoration:underline}
h1,h2,h3,h4{line-height:1.2;font-weight:700;color:var(--navy-700);margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4.5vw,3rem);letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,3.4vw,2.1rem)}
h3{font-size:1.2rem}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
section{padding-block:clamp(2.5rem,7vw,5rem)}
.bg-alt{background:var(--bg-alt)}
.bg-navy{background:var(--bg-navy);color:#fff}
.bg-navy h1,.bg-navy h2,.bg-navy h3{color:#fff}
.bg-navy a{color:#fff;text-decoration:underline}
.center{text-align:center}
.lead{font-size:1.15rem;color:var(--text-soft);max-width:60ch}
.center .lead{margin-inline:auto}
.eyebrow{
  display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--blue-500);margin-bottom:.6rem;
}
.bg-navy .eyebrow{color:var(--blue-300)}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- language visibility -----------------------------------------
   Default (html lang = zh-Hant, or anything not "en") shows Chinese only.
   html[lang="en"] shows English only.                                     */
html:not([lang="en"]) [data-lang="en"]{display:none}
html[lang="en"] [data-lang="zh"]{display:none}
/* avoid a flash of both before app.js runs */
html:not(.i18n-ready) [data-lang="en"]{display:none}

/* ---------- buttons ----------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;justify-content:center;
  padding:.8em 1.5em;border-radius:var(--radius);font-weight:700;font-size:1rem;
  border:2px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,color .15s;
  text-decoration:none;line-height:1;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--blue-500);color:#fff}
.btn-primary:hover{background:var(--blue-700);color:#fff}
.btn-primary:active{background:var(--blue-900)}
.btn-secondary{background:transparent;border-color:var(--navy-500);color:var(--navy-500)}
.btn-secondary:hover{background:var(--navy-100);color:var(--navy-500)}
.bg-navy .btn-secondary,.hero .btn-secondary{border-color:#fff;color:#fff}
.bg-navy .btn-secondary:hover,.hero .btn-secondary:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-lg{padding:1em 2em;font-size:1.05rem}

/* ---------- header / nav ---------------------------------------------------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line);
}
.site-header .bar{display:flex;align-items:center;gap:1.5rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.6rem;flex-shrink:0}
.brand img{height:30px;width:auto}
.brand:hover{text-decoration:none}
.nav{display:flex;align-items:center;gap:.2rem;margin-left:auto;flex-wrap:wrap}
.nav a{
  color:var(--gray-700);font-weight:600;font-size:.95rem;padding:.5rem .7rem;
  border-radius:var(--radius);white-space:nowrap;
}
.nav a:hover{color:var(--blue-700);background:var(--blue-100);text-decoration:none}
.nav a[aria-current="page"]{color:var(--blue-700)}
.lang-toggle{
  display:inline-flex;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;flex-shrink:0;
}
.lang-toggle button{
  background:#fff;border:0;padding:.45rem .7rem;font:inherit;font-size:.85rem;font-weight:700;
  color:var(--gray-500);cursor:pointer;
}
.lang-toggle button[aria-pressed="true"]{background:var(--navy-500);color:#fff}
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:var(--radius);width:44px;height:44px;cursor:pointer;padding:0;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:20px;height:2px;background:var(--navy-700);margin:0 auto;position:relative;transition:.2s;
}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0}

@media (max-width:1040px){
  .nav-toggle{display:block}
  .nav{
    position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--line);padding:.5rem var(--pad) 1.25rem;
    gap:.15rem;margin:0;box-shadow:var(--shadow-md);
    transform:translateY(-140%);transition:transform .25s ease;max-height:calc(100vh - 68px);overflow:auto;
  }
  .nav.open{transform:translateY(0)}
  .nav a{padding:.85rem .5rem;font-size:1.05rem;border-bottom:1px solid var(--gray-100)}
  .lang-toggle{align-self:flex-start;margin-top:.75rem}
}

/* ---------- hero ---------------------------------------------------------- */
.hero{position:relative;background:var(--navy-900);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(14,29,50,.94) 0%,rgba(14,29,50,.72) 45%,rgba(14,29,50,.30) 100%);z-index:1}
.hero > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.9}
.hero .container{position:relative;z-index:2;padding-block:clamp(3.5rem,10vw,7rem)}
.hero h1{color:#fff;max-width:18ch}
.hero p{color:var(--blue-300);font-size:1.2rem;max-width:52ch}
.hero .actions{display:flex;gap:1rem;flex-wrap:wrap;margin-top:1.8rem}

/* ---------- generic grid ------------------------------------------------- */
.grid{display:grid;gap:1.5rem}
.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid.cols-4{grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}

/* ---------- cards ------------------------------------------------------- */
.card{
  background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s,transform .18s,border-color .18s;
}
a.card:hover{text-decoration:none;box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--navy-300)}
.card .media{aspect-ratio:4/3;background:#fff;border-bottom:1px solid var(--gray-100);display:flex;align-items:center;justify-content:center}
.card .media img{width:100%;height:100%;object-fit:contain;padding:.8rem}
.card .body{padding:1.1rem 1.2rem 1.3rem;display:flex;flex-direction:column;gap:.35rem;flex:1}
.card .model{font-size:.78rem;font-weight:700;letter-spacing:.08em;color:var(--blue-500)}
.card h3{margin:0;font-size:1.08rem;color:var(--navy-700)}
.card p{margin:0;font-size:.92rem;color:var(--text-soft)}
.card .tag{margin-top:auto;padding-top:.6rem;font-size:.85rem;font-weight:700;color:var(--blue-500)}

/* ---------- category strip -------------------------------------------------- */
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:230px;display:flex;align-items:flex-end;color:#fff;background:var(--navy-700)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s}
.cat-card:hover{text-decoration:none}
.cat-card:hover img{transform:scale(1.04)}
.cat-card .cc-body{position:relative;padding:1.3rem 1.4rem;z-index:1;background:linear-gradient(0deg,rgba(14,29,50,.85),transparent)}
.cat-card h3{color:#fff;margin:0 0 .2rem}
.cat-card p{margin:0;color:var(--blue-300);font-size:.9rem}

/* ---------- feature list ------------------------------------------------- */
.features{display:grid;gap:1.4rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));list-style:none;padding:0;margin:0}
.features li{padding-left:0}
.features h3{display:flex;align-items:center;gap:.5rem;font-size:1.05rem;margin-bottom:.3rem}
.features h3::before{content:"";width:26px;height:3px;background:var(--blue-500);flex-shrink:0}
.features p{font-size:.95rem;color:var(--text-soft);margin:0}

/* ---------- product detail --------------------------------------------------- */
.pd-hero{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(1.5rem,5vw,3.5rem);align-items:start}
.pd-gallery{display:flex;flex-direction:column;gap:.8rem}
.pd-gallery .main{position:relative;background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3}
.pd-gallery .main img{width:100%;height:100%;object-fit:contain;padding:1rem}
.pd-badge{position:absolute;top:.6rem;right:.6rem;background:rgba(14,29,50,.92);color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.05em;padding:.28rem .6rem;border-radius:3px;pointer-events:none}
.pd-caption{text-align:center;font-size:.82rem;font-weight:600;letter-spacing:.05em;color:var(--gray-500);min-height:1.2em;margin:.15rem 0 0}
.pd-thumbs{display:flex;gap:.6rem;flex-wrap:wrap}
.pd-thumbs img{width:84px;height:64px;object-fit:contain;background:#fff;border-radius:3px;border:1px solid var(--gray-300);cursor:pointer;padding:3px}
.pd-thumbs img:hover{border-color:var(--blue-500)}
.pd-thumbs img.active{border-color:var(--blue-500);border-width:2px}
.pd-info .model{color:var(--blue-500);font-weight:700;letter-spacing:.08em;font-size:.85rem}
.pd-info h1{margin:.2rem 0 .4rem}
.pd-info .uses{font-size:.95rem;color:var(--text-soft)}
.codes-line{font-size:.92rem;margin:.2rem 0 .6rem;color:var(--gray-700)}
.codes-line b{color:var(--navy-700)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.4rem 0;border:1px solid var(--gray-100);border-radius:var(--radius)}
.spec-table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:640px}
.spec-table th,.spec-table td{text-align:left;padding:.7rem .9rem;border-bottom:1px solid var(--gray-100);vertical-align:top;white-space:nowrap}
.spec-table thead th{background:var(--navy-500);color:#fff;font-weight:700;position:sticky;top:0}
.spec-table tbody tr:nth-child(even){background:var(--gray-50)}
.spec-table tbody td strong{color:var(--navy-700);font-weight:700}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:.4rem 0 1rem}
.chip{background:var(--navy-100);color:var(--navy-700);font-size:.8rem;font-weight:700;padding:.3rem .7rem;border-radius:100px}
@media (max-width:820px){.pd-hero{grid-template-columns:1fr}}

/* ---------- filter bar --------------------------------------------------- */
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.8rem}
.filters button{
  background:#fff;border:1px solid var(--gray-300);border-radius:100px;padding:.45rem 1rem;
  font:inherit;font-size:.9rem;font-weight:600;color:var(--gray-700);cursor:pointer;transition:.15s;
}
.filters button:hover{border-color:var(--navy-500)}
.filters button[aria-pressed="true"]{background:var(--navy-500);color:#fff;border-color:var(--navy-500)}
.search-box{margin-left:auto;position:relative}
.search-box input{
  border:1px solid var(--gray-300);border-radius:100px;padding:.5rem 1rem;font:inherit;font-size:.9rem;min-width:200px;
}
.search-box input:focus{outline:2px solid var(--blue-300);border-color:var(--blue-500)}

/* ---------- steps / process ------------------------------------------------- */
.steps{counter-reset:step;display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));padding:0;list-style:none;margin:0}
.steps li{
  position:relative;background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);
  padding:1.4rem 1.2rem 1.3rem;
}
.steps li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--serif);font-size:1.6rem;font-weight:700;color:var(--blue-300);display:block;margin-bottom:.4rem;
}
.steps h3{font-size:1rem;margin:0 0 .3rem}
.steps p{font-size:.9rem;color:var(--text-soft);margin:0}

/* ---------- download list ---------------------------------------------------- */
.dl-list{list-style:none;padding:0;margin:0;display:grid;gap:.7rem}
.dl-list a,.dl-list button.dl-item{
  display:flex;align-items:center;gap:1rem;padding:1rem 1.2rem;background:#fff;
  border:1px solid var(--gray-100);border-radius:var(--radius);color:var(--text);font-weight:600;
  width:100%;text-align:left;font-family:inherit;font-size:1rem;cursor:pointer;
}
.dl-list a:hover,.dl-list button.dl-item:hover{text-decoration:none;border-color:var(--navy-300);box-shadow:var(--shadow-sm)}
.dl-list .ic{flex-shrink:0;width:38px;height:38px;background:var(--blue-100);color:var(--blue-700);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:800}
.dl-list .meta{margin-left:auto;font-size:.8rem;color:var(--text-soft);font-weight:600;white-space:nowrap}

/* ---------- report viewer dialog ---------------------------------------- */
.report-dialog{border:none;border-radius:10px;padding:0;max-width:900px;width:92vw;max-height:88vh;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.report-dialog::backdrop{background:rgba(10,20,35,.65)}
.report-dialog .rd-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 1.2rem;border-bottom:1px solid var(--gray-100);position:sticky;top:0;background:#fff;z-index:1}
.report-dialog .rd-title{margin:0;font-size:1rem;line-height:1.4}
.report-dialog .rd-close{border:none;background:transparent;font-size:1.7rem;line-height:1;cursor:pointer;color:var(--text-soft);padding:.1rem .5rem}
.report-dialog .rd-close:hover{color:var(--text)}
.report-dialog .rd-body{overflow-y:auto;max-height:calc(88vh - 58px);padding:1rem;background:var(--gray-50,#f1f5f9)}
.report-dialog .rd-body img{display:block;width:100%;height:auto;margin:0 0 .8rem;border:1px solid var(--gray-100);border-radius:4px;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}
.report-dialog .rd-body img:last-child{margin-bottom:0}

/* ---------- FAQ --------------------------------------------------------- */
.faq details{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);margin-bottom:.7rem;padding:0 1.2rem}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy-700);padding:1.1rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.3rem;color:var(--blue-500);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--gray-100)}
.faq .ans{padding:1rem 0 1.2rem;color:var(--text-soft)}

/* ---------- contact ---------------------------------------------------------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,5vw,3rem)}
@media (max-width:800px){.contact-grid{grid-template-columns:1fr}}
.field{margin-bottom:1rem}
.field label{display:block;font-weight:700;font-size:.9rem;margin-bottom:.35rem;color:var(--navy-700)}
.field input,.field textarea,.field select{
  width:100%;border:1px solid var(--gray-300);border-radius:var(--radius);padding:.7rem .9rem;font:inherit;font-size:1rem;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--blue-300);border-color:var(--blue-500)}
.info-block{display:grid;gap:1rem}
.info-block .row{display:flex;gap:.8rem;font-size:.98rem}
.info-block .row b{color:var(--navy-700);min-width:5.5em;flex-shrink:0}

/* ---------- footer --------------------------------------------------------- */
.site-footer{background:var(--navy-900);color:var(--blue-300);font-size:.92rem}
.site-footer .container{padding-block:3rem 2rem}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
@media (max-width:760px){.site-footer .cols{grid-template-columns:1fr 1fr}}
@media (max-width:460px){.site-footer .cols{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;margin:0 0 .9rem}
.site-footer a{color:var(--blue-300);display:block;padding:.2rem 0}
.site-footer a:hover{color:#fff}
.site-footer .brand-line{display:flex;align-items:center;gap:.6rem;margin-bottom:.8rem}
.site-footer .brand-chip{display:inline-flex;align-items:center;background:#fff;padding:1rem 1.6rem;border-radius:10px;line-height:0}
.site-footer .brand-chip img{height:64px;width:auto;display:block}
.site-footer .legal{border-top:1px solid rgba(255,255,255,.12);margin-top:2rem;padding-top:1.3rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;color:var(--navy-300)}
.social{display:flex;gap:.6rem;margin-top:.4rem}
.social a{border:1px solid rgba(255,255,255,.25);border-radius:var(--radius);padding:.3rem .6rem;font-size:.8rem;font-weight:700}

/* ---------- breadcrumb ------------------------------------------------------- */
.crumb{font-size:.85rem;color:var(--text-soft);padding-top:1.4rem}
.crumb a{color:var(--text-soft)}
.crumb a:hover{color:var(--blue-700)}

/* ---------- misc ---------------------------------------------------------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,5vw,3.5rem);align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow-md)}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.note{font-size:.85rem;color:var(--text-soft);border-left:3px solid var(--gray-300);padding-left:.9rem}
.form-status{font-size:.92rem;font-weight:600;padding:.8rem 1rem;border-radius:var(--radius);margin-bottom:1.2rem;border:1px solid currentColor}
.form-status.ok{color:var(--success);background:rgba(46,125,79,.08)}
.form-status.err{color:var(--error);background:rgba(194,59,51,.08)}
.tick-list{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
.tick-list li{position:relative;padding-left:1.6rem;font-size:.97rem}
.tick-list li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;background:var(--blue-500);border-radius:2px}
.prose>p,.prose>ul,.prose>ol{max-width:70ch}
.prose h2{margin-top:2rem}
hr{border:0;border-top:1px solid var(--gray-100);margin:2.5rem 0}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}