@charset "utf-8";
/* ===== Base ===== */
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family: Arial, Helvetica, sans-serif;
  color:#222;
  background:#fff;
  line-height:1.6;
}
img{ max-width:100%; height:auto; display:block; }
a img{ display:block; }
a{ color:inherit; text-decoration:none; }
.wrap{
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 0 12px;
}

/* ===== Topbar ===== */
.topbar{ background:#fff; }
.topbar__inner{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 0;
}
.brand{ flex:0 0 auto; }
.topbar__right{ flex:1 1 auto; }
.lang{
  text-align:right;
  font-size:14px;
  margin-bottom:6px;
}
.headline{
  margin:0;
  font-size:20px;
  font-weight:bold;
}

/* ===== Banner + Nav ===== */
.banner{ padding-bottom:10px; }
.banner__frame{
  width:100%;
  overflow:hidden;
  border:0;
}
.banner__frame iframe{
  width:100%;
  max-width:980px;
  height:200px;
  border:0;
  display:block;
}

/* 五顆按鈕：桌機永遠同一排 */
.mainnav{
  margin-top:8px;
  display:grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap:6px;
  justify-items:center;
  align-items:center;
  width:100%;
}

.mainnav a{ display:block; width:100%; }
.mainnav img{ width:100%; height:auto; max-width:200px; } /* 200 可視情況調小 */


/* ===== Intro ===== */
.content{ padding: 10px 0 18px; }
.intro{
  display:grid;
  grid-template-columns: 170px 1fr;
  gap:14px;
  align-items:start;
}
.photo{
  width:170px;
  border:1px solid #ddd;
}
.intro__text p{ margin: 10px 0; }
.intro__icons{ display:flex; justify-content:flex-end; margin-top:10px; }

/* ===== Products ===== */
.rule{ border:0; border-top:1px solid #ddd; margin:18px 0; }
.subhead{
  font-size:16px;
  margin: 0 0 12px;
  font-weight:bold;
}
.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
  margin-bottom:10px;
}
.card{
  display:block;
  border:1px solid #eee;
  padding:6px;
  background:#fff;
}
.card img{ width:100%; }

.product-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
  margin: 10px 0 14px;
}

.product-item{
  border:1px solid #eee;
  background:#fff;
  padding:8px;
}

.product-item .card{
  border:0;
  padding:0;
}
/* 第二排跟第一排同樣三欄、同樣對齊 */
.product-grid--second{
  margin-top: 10px;
}

/* 手機一樣變單欄，圖跟下拉就會自然排好 */
@media (max-width: 900px){
  .product-grid--second{
    grid-template-columns: 1fr;
  }
}




/* Selects: 大、好按 */
.selects{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
  margin: 8px 0 14px;
}
.selects--single{ grid-template-columns: 1fr; max-width: 330px; }
.selectbox__label{
  display:block;
  font-size:13px;
  margin: 0 0 6px;
  color:#444;
}
.selectbox__select{
  width:100%;
  font-size:16px;         /* 手機避免縮放/字太小 */
  padding:12px 10px;      /* 好按 */
  border:1px solid #bbb;
  border-radius:8px;
  background:#fff;
}
/* 沒下拉的純圖片卡：不要被拉成滿版巨圖 */
.card--plain{
  max-width: 360px;     /* 你想更小就改 320 */
  margin: 0 auto;       /* 置中 */
  border: 1px solid #eee;
  padding: 6px;
  background: #fff;
}

.card--plain img{
  width: 100%;
  height: auto;
}

.cards--second{
  grid-template-columns: repeat(3, 1fr);
}


/* ===== Hotline ===== */
.hotline{ padding: 10px 0; }
.hotline__inner{
  border:1px solid #eee;
  padding:8px 10px;
}

/* ===== Footer ===== */
.footer__nav{
  background: url("../image/und.png") repeat-x;
  padding:14px 0;
}
.footer__navInner{
  text-align:center;
  font-size:14px;
}
.footer__info{
  padding:14px 0 22px;
}
.footer__company{
  text-align:center;
  font-size:13px;
  margin-bottom:10px;
}
.footer__social{
  display:flex;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
}
.footer__social img{ display:inline-block; }
.lanjis{
  text-align:center;
  font-size:12px;
}

/* ===== Back to top ===== */
.to-top{
  position:fixed;
  right:14px;
  bottom:14px;
  width:44px;
  height:44px;
  border-radius:999px;
  border:1px solid #aaa;
  background:#fff;
  cursor:pointer;
  display:none;
}
.to-top.is-show{ display:block; }

/* ===== RWD Breakpoints ===== */
@media (max-width: 900px){
  .cards{ grid-template-columns: 1fr; }
  .selects{ grid-template-columns: 1fr; }
  .selects--single{ max-width:none; }
  .intro{ grid-template-columns: 1fr; }
  .photo{ width:100%; max-width:420px; }
  .lang{ text-align:left; }
  .topbar__inner{ flex-direction:column; align-items:flex-start; }
  .headline{ font-size:18px; }
  .banner__frame iframe{ height:180px; }
  
}

@media (max-width: 900px){
  .product-grid{ grid-template-columns: 1fr; }
}


@media (max-width: 900px){
  .cards--second{
    grid-template-columns: repeat(2, 1fr); /* 手機兩欄 */
  }
}


/* ===== 第二排：桌機三欄、手機一欄 ===== */
.product-grid.product-grid--second{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  align-items: start;
  margin-top: 10px;
}

@media (max-width: 900px){
  .product-grid.product-grid--second{
    grid-template-columns: 1fr;
  }
}