/* 宸勝精密機械 — 全站樣式 ------------------------------------------- */

:root{
  --red:#E50012;
  --red-dark:#B8000E;
  --red-tint:#FDF2F3;
  --ink:#16191C;
  --ink-2:#4A5257;
  --ink-3:#6B7277;
  --line:#DDE1E3;
  --line-2:#EDF0F1;
  --bg:#FFFFFF;
  --bg-2:#F5F7F7;
  --bg-3:#EAEEEF;
  --steel:#2F4551;
  --wrap:1160px;
  --radius:2px;
}

*{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei","Hiragino Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block;}

a{color:var(--red);text-underline-offset:2px;}
a:hover{color:var(--red-dark);}
:focus-visible{outline:3px solid var(--red);outline-offset:2px;}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;}

.skip{
  position:absolute;left:-9999px;top:0;background:var(--red);color:#fff;
  padding:10px 16px;z-index:100;text-decoration:none;
}
.skip:focus{left:0;color:#fff;}

/* ---- header ---- */
.site-head{border-bottom:1px solid var(--line);background:var(--bg);}
.head-in{
  max-width:var(--wrap);margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);margin-right:auto;}
.brand img{width:40px;height:40px;flex:none;}
.brand b{display:block;font-size:17px;font-weight:700;line-height:1.25;letter-spacing:.01em;}
.brand span{display:block;font-size:12px;color:var(--ink-3);line-height:1.3;letter-spacing:.02em;}

.nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;}
.nav a{
  text-decoration:none;color:var(--ink-2);font-size:15px;font-weight:500;
  padding:8px 13px;border-radius:var(--radius);
}
.nav a:hover{background:var(--bg-2);color:var(--ink);}
.nav a[aria-current="page"]{color:var(--red);font-weight:700;}
.nav .lang{
  border:1px solid var(--line);margin-left:6px;font-size:14px;color:var(--ink-2);
}
.nav .lang:hover{border-color:var(--ink-3);}

/* ---- hero ---- */
.hero{
  background:var(--steel);
  color:#fff;
  padding:66px 0 60px;
  background-image:linear-gradient(180deg,#35505E 0%,#2A3E49 100%);
}
.hero h1{
  margin:0 0 14px;font-size:clamp(28px,4.6vw,44px);line-height:1.25;
  font-weight:700;letter-spacing:.01em;text-wrap:balance;
}
.hero .lede{margin:0 0 8px;font-size:clamp(17px,2.2vw,21px);color:#D7E1E6;max-width:34em;}
.hero .est{margin:0;font-size:14px;color:#9DB1BB;letter-spacing:.04em;}
.hero .btns{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap;}

.btn{
  display:inline-block;padding:12px 24px;border-radius:var(--radius);
  font-weight:700;font-size:15px;text-decoration:none;border:2px solid transparent;
}
.btn-primary{background:var(--red);color:#fff;border-color:var(--red);}
.btn-primary:hover{background:var(--red-dark);border-color:var(--red-dark);color:#fff;}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff;}
.btn-outline{border-color:var(--line);color:var(--ink);background:var(--bg);}
.btn-outline:hover{border-color:var(--ink-3);color:var(--ink);}

/* ---- sections ---- */
main{display:block;}
.sec{padding:56px 0;}
.sec-alt{background:var(--bg-2);}
.sec-head{margin:0 0 30px;}
.sec-head h2{
  margin:0 0 8px;font-size:clamp(22px,3.2vw,30px);font-weight:700;line-height:1.3;
  letter-spacing:.01em;text-wrap:balance;
}
.sec-head h2::after{
  content:"";display:block;width:44px;height:3px;background:var(--red);margin-top:12px;
}
.sec-head p{margin:14px 0 0;color:var(--ink-2);max-width:62ch;}

h3{font-size:19px;font-weight:700;margin:32px 0 12px;letter-spacing:.01em;}
.prose h2.sub{font-size:19px;font-weight:700;margin:32px 0 12px;letter-spacing:.01em;}
.prose h2.sub::after{content:none;}
p{margin:0 0 16px;}
.prose{max-width:66ch;}
.prose ul{padding-left:1.3em;margin:0 0 18px;}
.prose li{margin-bottom:8px;}

/* ---- product grid ---- */
.grid{
  display:grid;gap:22px;
  grid-template-columns:repeat(auto-fill,minmax(288px,1fr));
}
.card{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);
  text-decoration:none;color:var(--ink);display:flex;flex-direction:column;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.card:hover{border-color:var(--red);box-shadow:0 6px 20px rgba(22,25,28,.09);color:var(--ink);}
.card .thumb{background:var(--bg-2);border-bottom:1px solid var(--line-2);aspect-ratio:1/1;overflow:hidden;}
.card .thumb img{width:100%;height:100%;object-fit:contain;}
.card .body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:4px;flex:1;}
.card .name{font-size:18px;font-weight:700;line-height:1.35;}
.card .en{font-size:13px;color:var(--ink-3);letter-spacing:.02em;}
.card .sum{font-size:14px;color:var(--ink-2);line-height:1.65;margin-top:8px;}
.card .more{margin-top:auto;padding-top:14px;color:var(--red);font-size:14px;font-weight:700;}

/* ---- product page ---- */
.crumb{font-size:13px;color:var(--ink-3);padding:10px 0 0;}
.crumb a{display:inline-block;padding:6px 2px;}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--red);}

.p-head{padding:22px 0 34px;border-bottom:1px solid var(--line);margin-bottom:38px;}
.p-head h1{margin:0 0 6px;font-size:clamp(26px,4.2vw,38px);font-weight:700;line-height:1.25;}
.p-head .p-en{font-size:17px;color:var(--ink-3);letter-spacing:.03em;margin:0 0 14px;}
.p-head .p-sum{font-size:17px;color:var(--ink-2);max-width:60ch;margin:0;}

.p-layout{display:grid;gap:40px;grid-template-columns:minmax(0,1fr);}
@media (min-width:900px){ .p-layout{grid-template-columns:minmax(0,440px) minmax(0,1fr);gap:48px;} }

/* ---- 圖片輪播 ---- */
.viewer{position:relative;}
.track{
  display:flex;overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;scroll-behavior:smooth;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-2);
  scrollbar-width:none;-ms-overflow-style:none;
}
.track::-webkit-scrollbar{display:none;}
.track:focus-visible{outline:3px solid var(--red);outline-offset:2px;}
.slide{flex:0 0 100%;scroll-snap-align:center;aspect-ratio:1/1;}
.slide img{width:100%;height:100%;object-fit:contain;}

.viewer .nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.94);
  color:var(--ink);font-size:26px;line-height:1;padding:0 0 3px;
  cursor:pointer;display:none;align-items:center;justify-content:center;
  box-shadow:0 2px 8px rgba(22,25,28,.12);
}
.gallery.is-enhanced .viewer .nav{display:flex;}
.viewer .nav.prev{left:12px;}
.viewer .nav.next{right:12px;}
.viewer .nav:hover:not([disabled]){border-color:var(--red);color:var(--red);}
.viewer .nav[disabled]{opacity:.28;cursor:default;box-shadow:none;}

.count{
  position:absolute;right:12px;bottom:12px;margin:0;
  background:rgba(255,255,255,.94);border:1px solid var(--line);
  border-radius:20px;padding:3px 12px;font-size:12.5px;
  color:var(--ink-2);font-variant-numeric:tabular-nums;display:none;
}
.gallery.is-enhanced .count{display:block;}

.thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;}
.thumbs .thumb{
  width:74px;height:74px;padding:0;cursor:pointer;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;line-height:0;
}
.thumbs .thumb img{width:100%;height:100%;object-fit:contain;}
.thumbs .thumb:hover{border-color:var(--ink-3);}
.thumbs .thumb.is-active{border-color:var(--red);box-shadow:inset 0 0 0 1px var(--red);}

.zoom-hint{
  margin:10px 0 0;font-size:13px;color:var(--ink-3);display:none;
}
.gallery.is-zoomable .zoom-hint{display:block;}

/* ---- 點圖放大（燈箱） ---- */
.lightbox{
  position:fixed;inset:0;z-index:200;
  background:rgba(16,20,22,.93);
  display:flex;align-items:center;justify-content:center;
  padding:56px 20px;
}
.lightbox[hidden]{display:none;}
.lb-stage{
  width:100%;height:100%;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.lb-img{
  max-width:100%;max-height:100%;width:auto;height:auto;
  object-fit:contain;background:#fff;border-radius:var(--radius);
  cursor:zoom-out;touch-action:none;
  transform-origin:center center;
  transition:transform .12s ease-out;
}
.lightbox.is-zoomed .lb-img{cursor:grab;transition:none;}
.lightbox.is-zoomed .lb-img:active{cursor:grabbing;}

/* 底色刻意壓深：機台照片是白底，淺色按鈕會整個看不見 */
.lb-tools{
  position:absolute;top:14px;right:16px;z-index:2;
  display:flex;align-items:center;gap:8px;
}
.lb-btn{
  min-width:44px;height:44px;padding:0 12px;border-radius:22px;
  border:1px solid rgba(255,255,255,.45);background:rgba(16,20,22,.72);
  color:#fff;font-size:22px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-family:inherit;
}
.lb-btn:hover{background:rgba(16,20,22,.92);border-color:rgba(255,255,255,.75);}
.lb-level{
  font-size:14px;font-weight:700;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;min-width:66px;
}
.lb-close{font-size:28px;padding:0 0 3px;background:rgba(16,20,22,.86);}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);z-index:2;
  width:52px;height:52px;border-radius:50%;
  border:1px solid rgba(255,255,255,.45);background:rgba(16,20,22,.72);
  color:#fff;font-size:32px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;padding:0 0 4px;
}
.lb-nav:hover{background:rgba(16,20,22,.92);}
.lb-nav[hidden]{display:none;}
.lb-prev{left:16px;}
.lb-next{right:16px;}
.lb-count{
  position:absolute;bottom:18px;left:50%;transform:translateX(-50%);z-index:2;
  margin:0;color:#D6DEE1;font-size:14px;font-variant-numeric:tabular-nums;
  background:rgba(0,0,0,.35);border-radius:20px;padding:4px 14px;
}
.lb-count[hidden]{display:none;}
.lightbox :focus-visible{outline:3px solid #fff;outline-offset:2px;}

/* 手機：把上一張／下一張移到底部控制列，不要壓在照片上 */
@media (max-width:640px){
  .lightbox{padding:74px 8px 84px;}
  .lb-tools{top:12px;right:10px;left:10px;justify-content:flex-end;gap:6px;}
  .lb-btn{min-width:42px;height:42px;padding:0 10px;}
  .lb-level{min-width:60px;font-size:13px;}
  .lb-nav{
    top:auto;bottom:16px;transform:none;
    width:48px;height:48px;font-size:28px;
  }
  .lb-prev{left:24px;}
  .lb-next{right:24px;}
  .lb-count{bottom:30px;}
}

.block{margin-bottom:32px;}
.block h2{
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--red);margin:0 0 12px;
}
.block ul{margin:0;padding-left:1.25em;}
.block li{margin-bottom:9px;}
.block p{margin:0;}

/* ---- spec table ---- */
.spec-note{font-size:13.5px;color:var(--ink-3);margin:0 0 12px;line-height:1.6;}
.tbl-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);}
table{border-collapse:collapse;width:100%;min-width:400px;font-size:14.5px;}
th,td{padding:10px 15px;text-align:left;border-bottom:1px solid var(--line-2);}
thead th{
  background:var(--bg-3);font-weight:700;font-size:13px;letter-spacing:.06em;
  color:var(--ink-2);white-space:nowrap;border-bottom:1px solid var(--line);
}
tbody td{font-variant-numeric:tabular-nums;white-space:nowrap;}
tbody tr:last-child td{border-bottom:none;}
tbody tr:nth-child(even){background:var(--bg-2);}

/* ---- contact ---- */
.info-list{list-style:none;padding:0;margin:0;}
.info-list li{
  display:grid;grid-template-columns:96px 1fr;gap:14px;
  padding:13px 0;border-bottom:1px solid var(--line-2);align-items:baseline;
}
.info-list li:first-child{border-top:1px solid var(--line-2);}
.info-list .k{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;}
.info-list .v{font-size:16.5px;}
.info-list .v a{text-decoration:none;font-weight:700;display:inline-block;padding:5px 0;}
.info-list .v a:hover{text-decoration:underline;}

.map-box{
  margin-top:26px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--bg-2);overflow:hidden;
}
.map-box button{
  display:block;width:100%;padding:52px 20px;border:0;background:none;cursor:pointer;
  font:inherit;font-size:15px;font-weight:700;color:var(--ink-2);text-align:center;
}
.map-box button:hover{background:var(--bg-3);color:var(--red);}
.map-box iframe{display:block;width:100%;height:420px;border:0;}

.cta{background:var(--bg-3);border-top:1px solid var(--line);padding:44px 0;}
.cta-in{display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;}
.cta h2{margin:0 0 4px;font-size:22px;font-weight:700;}
.cta p{margin:0;color:var(--ink-2);font-size:15px;}

/* ---- footer ---- */
.site-foot{background:var(--steel);color:#C6D3D9;padding:40px 0 28px;font-size:14px;}
.foot-in{display:grid;gap:26px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));}
.site-foot b{color:#fff;display:block;font-size:15px;margin-bottom:8px;}
.site-foot .motto{color:#B4C4CB;font-style:normal;margin:0 0 4px;}
.site-foot a{color:#DCE6EA;text-decoration:none;}
.site-foot a:hover{color:#fff;text-decoration:underline;}
.site-foot ul{list-style:none;padding:0;margin:0;}
.site-foot li{margin-bottom:2px;}
.site-foot li a{display:inline-block;padding:7px 0;min-height:26px;}
.foot-bar{
  border-top:1px solid rgba(255,255,255,.15);margin-top:30px;padding-top:18px;
  font-size:12.5px;color:#9FB1B9;display:flex;gap:14px;flex-wrap:wrap;justify-content:space-between;
}

@media (max-width:640px){
  .sec{padding:42px 0;}
  .site-foot li a{padding:10px 0;min-height:32px;}
  .info-list .v a{display:inline-block;padding:6px 0;}
  .hero{padding:48px 0 44px;}
  .head-in{padding:12px 16px;gap:10px;}
  .brand b{font-size:15px;}
  .nav a{padding:7px 10px;font-size:14px;}
  .info-list li{grid-template-columns:1fr;gap:2px;}
  .cta-in{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;animation:none !important;}
}