/* ==========================================================================
   祥貿石業 SHANG MAO STONE — Hero Section
   for XOOPS · Bootstrap 5
   ========================================================================== */

:root{
  --bg:#ffffff;
  --paper:#f8f8f8;
  --ink:#141414;
  --ink-soft:#3a3a3a;
  --muted:#8b8881;
  --hairline:#1414141a;
  --hairline-strong:#14141433;

  --font-serif: "Noto Serif TC", "Cormorant Garamond", "Marcellus", serif;
  --font-display: "Cormorant Garamond", "Noto Serif TC", serif;
  --font-sans: "Archivo", "Noto Sans TC", system-ui, sans-serif;
  --font-zh: "Noto Sans TC", "Archivo", system-ui, sans-serif;
}

*{ -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; }

html, body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-weight:400;
}
body{ overflow-x:hidden; }
a{ color:inherit; text-decoration:none; }


/* ==========================================================================
   1. 頂部資訊條 Utility Bar
   ========================================================================== */
.utility-bar{
  border-bottom:1px solid var(--hairline);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--ink-soft);
  background:var(--bg);
}
.utility-bar .ub-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:34px; padding:0 32px;
}
.utility-bar .ub-left,
.utility-bar .ub-right{ display:flex; align-items:center; gap:24px; }
.utility-bar .ub-dot{
  width:5px; height:5px; border-radius:50%;
  background:#2f7a4d; display:inline-block;
  margin-right:8px; transform:translateY(-1px);
}
.utility-bar .ub-link{
  display:inline-flex; align-items:center; gap:6px;
  transition:opacity .2s;
}
.utility-bar .ub-link:hover{ opacity:.55; }
.utility-bar .lang-switch{ display:flex; gap:10px; }
.utility-bar .lang-switch span{ cursor:pointer; padding-bottom:2px; }
.utility-bar .lang-switch .active{ border-bottom:1px solid var(--ink); }


/* ==========================================================================
   2. 主選單 Main Navigation
   ========================================================================== */
.main-nav{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--bg);
  border-bottom:1px solid var(--hairline);
  transition: box-shadow .35s ease;
}
.main-nav .nav-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:84px;
  padding:0 32px;
  transition: height .35s ease;
}

/* Sticky 狀態：選單置頂後縮小 */
.main-nav.is-stuck{
  box-shadow: 0 1px 0 var(--hairline), 0 14px 28px -22px rgba(20,20,20,.18);
}
.main-nav.is-stuck .nav-inner{ height: 64px; }
.main-nav.is-stuck .brand-en{
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all .25s ease;
}
.main-nav.is-stuck .brand-mark{
  width: 30px; height: 30px;
  transition: all .3s ease;
}
.brand-mark, .brand-en{
  transition: all .35s ease;
}

/* Brand */
.brand{ display:flex; align-items:center; gap:14px; }
.brand-mark{
  width:36px; height:36px;
  border:1px solid var(--ink);
  position:relative;
  display:flex; align-items:center; justify-content:center;
}
.brand-mark::before, .brand-mark::after{
  content:""; position:absolute; background:var(--ink);
}
.brand-mark::before{ width:18px; height:1px; }
.brand-mark::after{ width:1px; height:18px; }
.brand-mark .bm-zh{
  position:absolute; inset:0; margin:auto;
  width:26px; height:26px; z-index:2;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-serif); font-size:14px; font-weight:500;
  color:var(--ink); background:var(--bg);
}
.brand-text{ display:flex; flex-direction:column; gap:4px; line-height:1; }
.brand-zh{
  font-family:var(--font-serif); font-weight:500;
  font-size:18px; letter-spacing:.22em;
  color:var(--ink);
}
.brand-en{
  font-family:var(--font-sans);
  font-size:9.5px; letter-spacing:.32em;
  color:var(--muted); text-transform:uppercase;
}

/* Nav links */
.nav-links{
  display:flex; gap:42px;
  align-items:center; justify-content:center;
}
.nav-link-item{
  position:relative;
  font-family:var(--font-zh);
  font-size:13.5px;
  letter-spacing:.18em;
  color:var(--ink);
  padding:6px 0;
  display:inline-flex; align-items:center; gap:6px;
}
.nav-link-item .nl-en{
  position:absolute;
  left:50%; top:100%;
  transform:translate(-50%, 4px);
  font-family:var(--font-sans);
  font-size:9px; letter-spacing:.3em; color:var(--muted);
  text-transform:uppercase;
  white-space:nowrap;
  opacity:0;
  transition: all .35s ease;
}
.nav-link-item:hover .nl-en{
  opacity:1; transform:translate(-50%, 10px);
}
.nav-link-item .nl-text{ position:relative; }
.nav-link-item .nl-text::after{
  content:""; position:absolute;
  left:50%; bottom:-3px;
  width:0; height:1px; background:var(--ink);
  transition: all .4s ease;
}
.nav-link-item:hover .nl-text::after{ width:100%; left:0; }
.nav-link-item .caret{
  font-size:8px; color:var(--muted);
  transition:transform .25s;
}
.nav-link-item.has-mega:hover .caret,
.nav-link-item.has-mega.is-open .caret{ transform:rotate(180deg); }

/* Nav actions */
.nav-actions{
  display:flex; justify-content:flex-end;
  align-items:center; gap:8px;
}
.icon-btn{
  width:38px; height:38px; border-radius:50%;
  border:1px solid transparent;
  display:inline-flex; align-items:center; justify-content:center;
  color:var(--ink);
  transition:all .25s;
}
.icon-btn:hover{ border-color:var(--hairline-strong); }
.icon-btn svg{ width:16px; height:16px; }

.cta-quote{
  margin-left:8px;
  font-family:var(--font-sans);
  font-size:11.5px; letter-spacing:.22em; text-transform:uppercase;
  padding:10px 18px;
  border:1px solid var(--ink);
  color:var(--ink);
  display:inline-flex; align-items:center; gap:10px;
  transition: all .3s;
}
.cta-quote:hover{ background:var(--ink); color:#fff; }
.cta-quote .dot{
  width:4px; height:4px; border-radius:50%;
  background:currentColor;
}


/* ==========================================================================
   3. 第二層選單 Mega Menu
   ========================================================================== */
.mega-wrap{
  position:absolute;
  left:0; right:0; top:100%;
  z-index:25;
  background:var(--bg);
  border-bottom:1px solid var(--hairline);
  box-shadow: 0 24px 40px -28px rgba(20,20,20,.18);
  opacity:0; visibility:hidden;
  transform: translateY(-8px);
  transition: opacity .35s ease, transform .35s ease, visibility 0s .35s linear;
  pointer-events:none;
}
.mega-wrap.is-open{
  opacity:1; visibility:visible;
  transform:translateY(0);
  transition: opacity .35s ease, transform .35s ease, visibility 0s linear;
  pointer-events:auto;
}
.mega-panel{
  display:none;
  padding: 44px 56px 52px;
  grid-template-columns: 1.2fr 1.2fr 1.2fr 1.6fr;
  gap: 56px;
}
.mega-panel.is-active{ display:grid; }

.mega-col h6{
  font-family:var(--font-sans);
  font-size:10.5px; letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--muted);
  margin: 0 0 18px;
  padding-bottom:14px;
  border-bottom:1px solid var(--hairline);
}
.mega-col ul{
  list-style:none; padding:0; margin:0;
  display:flex; flex-direction:column; gap:14px;
}
.mega-col li a{
  position:relative;
  display:flex; align-items:baseline; justify-content:space-between;
  gap:12px;
  font-family:var(--font-zh);
  font-size:14px; letter-spacing:.06em;
  color:var(--ink);
  padding:2px 0;
  transition: color .2s, transform .25s;
}
.mega-col li a .zh{ position:relative; }
.mega-col li a .zh::after{
  content:""; position:absolute;
  left:0; bottom:-3px;
  width:0; height:1px; background:var(--ink);
  transition: width .35s ease;
}
.mega-col li a:hover{ transform: translateX(4px); }
.mega-col li a:hover .zh::after{ width:100%; }
.mega-col li a .en{
  font-family:var(--font-sans);
  font-size:9.5px; letter-spacing:.28em;
  color:var(--muted); text-transform:uppercase;
  white-space:nowrap;
}
.mega-col li.is-new a::before{
  content:"NEW";
  position:absolute; left:-32px; top:7px;
  font-family:var(--font-sans);
  font-size:8.5px; letter-spacing:.24em;
  color:#a07333;
}

/* Featured card (right column) */
.mega-feature{
  display:grid; grid-template-rows: 1fr auto;
  gap:16px;
  position:relative;
}
.mega-feature .ft-img{
  position:relative; overflow:hidden;
  background:#eee;
  min-height: 240px;
}
.mega-feature .ft-img img{
  width:100%; height:100%; display:block;
  object-fit:cover;
  transition: transform .8s cubic-bezier(.2,0,.2,1);
}
.mega-feature:hover .ft-img img{ transform: scale(1.04); }
.mega-feature .ft-tag{
  position:absolute; left:16px; top:16px;
  font-family:var(--font-sans);
  font-size:9.5px; letter-spacing:.32em;
  background:rgba(255,255,255,.92);
  color:var(--ink);
  padding:6px 10px;
}
.mega-feature .ft-meta{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px;
}
.mega-feature .ft-meta .t-zh{
  font-family:var(--font-serif);
  font-size:18px; letter-spacing:.08em; line-height:1.3;
}
.mega-feature .ft-meta .t-en{
  font-family:var(--font-sans);
  font-size:10px; letter-spacing:.28em;
  color:var(--muted); text-transform:uppercase;
  margin-top:4px;
}
.mega-feature .ft-link{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-sans);
  font-size:10.5px; letter-spacing:.28em; text-transform:uppercase;
  color:var(--ink);
  border-bottom:1px solid var(--ink);
  padding-bottom:4px;
  transition: gap .25s;
}
.mega-feature .ft-link:hover{ gap:18px; }

/* Backdrop behind mega menu */
.mega-backdrop{
  position:fixed; inset:0; z-index:20;
  background: rgba(20,20,20,.35);
  opacity:0; visibility:hidden;
  transition: opacity .35s ease, visibility 0s .35s linear;
}
.mega-backdrop.is-open{
  opacity:1; visibility:visible;
  transition: opacity .35s ease, visibility 0s linear;
}


/* ==========================================================================
   4. 漢堡按鈕 Mobile Hamburger
   ========================================================================== */
.hamburger{
  display:none;
  width:42px; height:42px;
  align-items:center; justify-content:center;
  background:transparent; border:none; padding:0;
  position:relative; cursor:pointer;
}
.hamburger .bars{ position:relative; width:22px; height:14px; }
.hamburger .bars span{
  position:absolute; left:0; right:0;
  height:1px; background:var(--ink);
  transition: transform .35s ease, top .25s ease .1s, opacity .25s ease;
}
.hamburger .bars span:nth-child(1){ top:2px; }
.hamburger .bars span:nth-child(2){ top:7px; }
.hamburger .bars span:nth-child(3){ top:12px; }
.hamburger.is-open .bars span:nth-child(1){
  top:7px; transform:rotate(45deg);
  transition: top .25s ease, transform .35s ease .15s;
}
.hamburger.is-open .bars span:nth-child(2){ opacity:0; }
.hamburger.is-open .bars span:nth-child(3){
  top:7px; transform:rotate(-45deg);
  transition: top .25s ease, transform .35s ease .15s;
}


/* ==========================================================================
   5. 手機選單 Mobile Drawer
   ========================================================================== */
.mobile-drawer{
  position:fixed;
  top:0; right:0; bottom:0;
  z-index:60;
  width: min(440px, 92vw);
  background: var(--bg);
  transform: translateX(100%);
  transition: transform .55s cubic-bezier(.77,0,.18,1);
  display:flex; flex-direction:column;
  overflow:hidden;
}
.mobile-drawer.is-open{ transform: translateX(0); }

.drawer-backdrop{
  position:fixed; inset:0; z-index:55;
  background: rgba(20,20,20,.45);
  opacity:0; visibility:hidden;
  transition: opacity .35s ease, visibility 0s .35s linear;
}
.drawer-backdrop.is-open{
  opacity:1; visibility:visible;
  transition: opacity .35s ease, visibility 0s linear;
}

.drawer-head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 20px 24px;
  border-bottom:1px solid var(--hairline);
  flex-shrink:0;
}
.drawer-head .brand-zh{
  font-size:16px; letter-spacing:.2em;
  font-family:var(--font-serif); font-weight:500;
}
.drawer-head .brand-en{
  display:block;
  font-size:9px; letter-spacing:.3em;
  color:var(--muted); margin-top:4px;
}
.drawer-close{
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--hairline-strong);
  background:transparent;
  display:inline-flex; align-items:center; justify-content:center;
  color:var(--ink); cursor:pointer;
}
.drawer-close svg{ width:14px; height:14px; }

.drawer-body{
  flex:1; overflow-y:auto;
  padding: 12px 0 24px;
}

.m-item{ border-bottom:1px solid var(--hairline); }
.m-item-head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 22px 24px;
  cursor:pointer;
  position:relative;
}
.m-item-head .m-zh{
  font-family:var(--font-zh); font-weight:400;
  font-size:18px; letter-spacing:.14em;
  color:var(--ink);
}
.m-item-head .m-en{
  display:block;
  font-family:var(--font-sans);
  font-size:9.5px; letter-spacing:.3em;
  color:var(--muted); text-transform:uppercase;
  margin-top:6px;
}
.m-item-head .m-toggle{
  width:30px; height:30px;
  position:relative;
}
.m-item-head .m-toggle::before,
.m-item-head .m-toggle::after{
  content:""; position:absolute;
  background:var(--ink);
  transition:transform .35s ease;
}
.m-item-head .m-toggle::before{
  left:6px; right:6px; top:50%; height:1px;
}
.m-item-head .m-toggle::after{
  top:6px; bottom:6px; left:50%;
  width:1px; transform:translateX(-50%);
}
.m-item.is-open .m-item-head .m-toggle::after{
  transform:translateX(-50%) rotate(90deg);
}

.m-item-head.no-children .m-toggle{ display:none; }
.m-item-head.no-children::after{
  content:""; position:absolute;
  right:24px; top:50%; transform:translateY(-50%);
  width:18px; height:1px; background:var(--ink);
}
.m-item-head.no-children::before{
  content:""; position:absolute;
  right:24px; top:calc(50% - 4px);
  width:8px; height:8px;
  border-right:1px solid var(--ink);
  border-top:1px solid var(--ink);
  transform: rotate(45deg);
}

.m-sub{
  max-height:0; overflow:hidden;
  background: var(--paper);
  transition: max-height .5s cubic-bezier(.77,0,.18,1);
}
.m-item.is-open .m-sub{ max-height: 600px; }
.m-sub ul{
  list-style:none; margin:0;
  padding: 6px 24px 22px;
}
.m-sub ul li a{
  display:flex; align-items:baseline; justify-content:space-between;
  padding: 12px 0;
  font-family:var(--font-zh);
  font-size:14px; letter-spacing:.08em;
  color:var(--ink-soft);
  border-bottom:1px dashed var(--hairline);
}
.m-sub ul li:last-child a{ border-bottom:none; }
.m-sub ul li a .en{
  font-family:var(--font-sans);
  font-size:9px; letter-spacing:.26em;
  color:var(--muted); text-transform:uppercase;
}

.drawer-foot{
  border-top:1px solid var(--hairline);
  padding: 22px 24px 28px;
  display:flex; flex-direction:column; gap:18px;
  background:var(--bg);
  flex-shrink:0;
}
.drawer-foot .df-cta{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 18px;
  border:1px solid var(--ink);
  font-family:var(--font-sans);
  font-size:11px; letter-spacing:.24em; text-transform:uppercase;
}
.drawer-foot .df-cta:hover{ background:var(--ink); color:#fff; }
.drawer-foot .df-row{
  display:flex; align-items:center; justify-content:space-between;
  font-size:11.5px; letter-spacing:.18em;
  color:var(--ink-soft);
}
.drawer-foot .df-row a{ color:var(--ink); }
.drawer-foot .df-langs{ display:flex; gap:14px; }
.drawer-foot .df-langs span{
  cursor:pointer; padding-bottom:2px;
  font-size:11px; letter-spacing:.22em;
}
.drawer-foot .df-langs .active{ border-bottom:1px solid var(--ink); }
.drawer-foot .df-tel{
  font-family:var(--font-serif);
  font-size:22px; letter-spacing:.05em;
  color:var(--ink);
}
.drawer-foot .df-socials{ display:flex; gap:14px; }
.drawer-foot .df-socials a{
  width:34px; height:34px; border-radius:50%;
  border:1px solid var(--hairline-strong);
  display:inline-flex; align-items:center; justify-content:center;
  color:var(--ink);
}
.drawer-foot .df-socials svg{ width:13px; height:13px; }


/* ==========================================================================
   6. Hero 輪播 (滿版圖 + 置中文字)
   ========================================================================== */
.hero{
  position:relative;
  height: calc(100vh - 118px); /* utility 34 + nav 84 */
  min-height: 620px;
  overflow:hidden;
  background:#111;
}

/* Slides — fade transition */
.hero-slide{
  position:absolute; inset:0;
  opacity:0;
  transition: opacity 1.2s cubic-bezier(.77,0,.18,1);
  pointer-events:none;
}
.hero-slide.is-active{
  opacity:1; pointer-events:auto;
  z-index:2;
}
.hero-slide .img{
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  transform: scale(1.06);
  transition: transform 7s ease-out;
}
.hero-slide.is-active .img{ transform: scale(1.0); }

/* Gradient overlay */
.hero-tint{
  position:absolute; inset:0; z-index:3;
  background: linear-gradient(180deg,
    rgba(20,20,20,0.18) 0%,
    rgba(20,20,20,0)    25%,
    rgba(20,20,20,0)    55%,
    rgba(20,20,20,0.55) 100%);
  pointer-events:none;
}

/* Caption (置中) */
.hero-caption-wrap{
  position:absolute; inset:0; z-index:5;
  padding: 56px 56px 140px;
  display:flex; flex-direction:column;
  align-items:center; justify-content:flex-end;
  text-align:center;
  color:#fff;
  pointer-events:none;
}
.hero-caption{
  max-width: 720px;
  pointer-events:auto;
}
.caption-eyebrow{
  display:inline-flex; align-items:center; justify-content:center;
  gap:14px;
  font-family:var(--font-sans);
  font-size:10.5px; letter-spacing:.36em; text-transform:uppercase;
  color:rgba(255,255,255,.78);
  margin-bottom:28px;
}
.caption-eyebrow .line{
  width:36px; height:1px;
  background:rgba(255,255,255,.55);
  display:inline-block;
}
.caption-title{
  font-family:var(--font-serif);
  font-weight:300;
  font-size: clamp(40px, 5vw, 76px);
  line-height: 1.06;
  letter-spacing:.04em;
  margin:0 0 26px;
  text-wrap:pretty;
}
.caption-sub{
  font-family:var(--font-zh);
  font-weight:300;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing:.04em;
  color:rgba(255,255,255,.82);
  max-width: 480px;
  margin: 0 auto 38px;
}
.caption-meta{
  display:flex; justify-content:center; gap:36px;
  margin-bottom:36px;
  font-family:var(--font-sans);
  font-size:10.5px; letter-spacing:.28em; text-transform:uppercase;
  color:rgba(255,255,255,.7);
}
.caption-meta .m-key{
  display:block;
  font-size:9px; opacity:.6;
  margin-bottom:6px;
}
.caption-meta .m-val{
  font-family:var(--font-zh);
  font-size:13px; letter-spacing:.15em;
  color:#fff;
}

.caption-cta-row{
  display:flex; align-items:center; justify-content:center;
  gap:24px;
}
.caption-cta{
  display:inline-flex; align-items:center; gap:14px;
  font-family:var(--font-sans);
  font-size:11.5px; letter-spacing:.28em; text-transform:uppercase;
  color:#fff;
  padding:14px 0 12px;
  border-bottom:1px solid rgba(255,255,255,.55);
  transition: all .3s;
}
.caption-cta:hover{ gap:22px; border-color:#fff; }
.caption-cta .arrow{
  width:24px; height:1px; background:#fff;
  position:relative;
}
.caption-cta .arrow::after{
  content:""; position:absolute;
  right:0; top:50%;
  width:7px; height:7px;
  border-right:1px solid #fff; border-top:1px solid #fff;
  transform:translateY(-50%) rotate(45deg);
}
.caption-cta.secondary{
  border-bottom:none;
  opacity:.78;
}
.caption-cta.secondary:hover{ opacity:1; }

/* Caption entrance animation */
.hero-slide.is-active .caption-eyebrow{ animation: hero-rise .9s .15s both; }
.hero-slide.is-active .caption-title  { animation: hero-rise 1s .25s both; }
.hero-slide.is-active .caption-sub    { animation: hero-rise 1s .40s both; }
.hero-slide.is-active .caption-meta   { animation: hero-rise 1s .50s both; }
.hero-slide.is-active .caption-cta-row{ animation: hero-rise 1s .60s both; }
@keyframes hero-rise{
  from{ opacity:0; transform:translateY(18px); }
  to  { opacity:1; transform:translateY(0); }
}


/* ==========================================================================
   7. Hero 輔助元件 (數字、控制、底部資訊條、進度條)
   ========================================================================== */
.hero-index{
  position:absolute;
  top:36px; right:56px;
  z-index:6;
  display:flex; align-items:center; gap:18px;
  color:#fff;
  font-family:var(--font-sans);
  font-size:11px; letter-spacing:.28em;
}
.hero-index .cur{
  font-family:var(--font-display);
  font-size:34px; line-height:1;
  letter-spacing:.02em; font-weight:300;
}
.hero-index .sep{
  width:48px; height:1px;
  background:rgba(255,255,255,.55);
}
.hero-index .total{ opacity:.75; }

.hero-controls{
  position:absolute;
  right:56px; bottom:130px;
  z-index:7;
  display:flex; flex-direction:column; gap:10px;
}
.hero-controls .ctrl{
  width:48px; height:48px; border-radius:50%;
  border:1px solid rgba(255,255,255,.5);
  background:transparent; color:#fff;
  display:flex; align-items:center; justify-content:center;
  transition: all .3s;
  cursor:pointer;
}
.hero-controls .ctrl:hover{ background:#fff; color:var(--ink); }
.hero-controls .ctrl svg{ width:14px; height:14px; }

.hero-bottom{
  position:absolute;
  left:0; right:0; bottom:0;
  z-index:6;
  padding: 0 56px;
  height: 64px;
  display:flex; align-items:center; justify-content:space-between;
  color:#fff;
  border-top:1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(2px);
}
.hero-bottom .left,
.hero-bottom .right{
  display:flex; align-items:center; gap:24px;
  font-family:var(--font-sans);
  font-size:10.5px; letter-spacing:.28em; text-transform:uppercase;
  color:rgba(255,255,255,.78);
}
.hero-bottom .pin{ display:inline-flex; align-items:center; gap:8px; }
.hero-bottom .pin svg{ width:11px; height:11px; }
.hero-bottom .marquee-track{
  display:inline-flex; gap:32px; overflow:hidden;
  max-width:340px;
}
.hero-bottom .marquee-track > div{
  display:inline-flex; gap:32px;
  white-space:nowrap;
  animation: hero-marquee 22s linear infinite;
}
@keyframes hero-marquee{
  0%  { transform:translateX(0); }
  100%{ transform:translateX(-50%); }
}

.hero-progress{
  position:absolute;
  left:0; right:0; bottom:0;
  height:1px; z-index:8;
  background: rgba(255,255,255,.18);
}
.hero-progress .bar{
  height:100%; width:0%;
  background:#fff;
  transition: width .15s linear;
}


/* ==========================================================================
   8. 響應式 — Bootstrap 5 對齊 (xl = 1200px, sm = 576px)
   ========================================================================== */

/* 平板 / 手機 (< xl 1200px) */
@media (max-width: 1199.98px){
  .nav-links{ display:none; }
  .main-nav .nav-inner{
    grid-template-columns: 1fr auto;
    height:72px;
    padding: 0 20px;
  }
  .nav-actions .icon-btn[data-hide-mobile]{ display:none; }
  .nav-actions .cta-quote{ display:none; }
  .hamburger{ display:inline-flex; }

  .hero-caption-wrap{ padding: 40px 24px 120px; }
  .hero-index{ top:24px; right:24px; }
  .hero-index .cur{ font-size:26px; }
  .hero-index .sep{ width:32px; }
  .hero-controls{ right:18px; bottom:130px; }
  .hero-controls .ctrl{ width:42px; height:42px; }
  .hero-bottom{ padding:0 20px; height:56px; }
  .hero-bottom .left span:not(.pin){ display:none; }

  .utility-bar .ub-inner{ padding:0 18px; }
  .utility-bar{ font-size:10px; }
  .caption-meta{ flex-wrap:wrap; gap:18px 28px; }
}

/* 手機 (< sm 576px) */
@media (max-width: 575.98px){
  .utility-bar .ub-left span:not(:first-child){ display:none; }
  .utility-bar .ub-right .ub-link:not(.lang-switch *):not([href^="tel"]){ display:none; }

  .caption-eyebrow{
    font-size:9.5px; letter-spacing:.28em;
    margin-bottom:20px;
  }
  .caption-title{ font-size: 38px; }
  .caption-sub{ font-size:13.5px; }
  .caption-meta{ display:none; }

  .hero{ min-height: 560px; }
  .brand-en{ display:none; }
  .brand-mark{ width:32px; height:32px; }
  .brand-zh{ font-size:16px; letter-spacing:.18em; }
}


/* ==========================================================================
   9. 品牌故事 Brand Story
   ========================================================================== */
.brand-story{
  background: var(--bg);
  padding: 140px 56px 120px;
  position: relative;
}
.story-inner{
  max-width: 1440px;
  margin: 0 auto;
}

/* --- 9.1 區塊標頭 --- */
.story-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 100px;
  font-family: var(--font-sans);
  font-size: 11px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--muted);
}
.story-head .sh-index{
  display:inline-flex; align-items:center; gap:14px;
  color: var(--ink);
}
.story-head .sh-index .num{
  font-family: var(--font-display);
  font-size: 32px; line-height:1;
  letter-spacing: .04em; font-weight: 300;
}
.story-head .sh-index .line{
  width: 36px; height:1px; background: var(--ink); display:inline-block;
}
.story-head .sh-label{
  text-align: center;
}
.story-head .sh-stamp{
  display:inline-flex; align-items:center; gap:10px;
  color: var(--ink);
}
.story-head .sh-stamp .stamp{
  display:inline-flex; align-items:center; justify-content:center;
  border: 1px solid var(--ink); padding: 6px 10px;
  font-family: var(--font-serif); font-size: 11px; letter-spacing: .26em;
}

/* --- 9.2 主標 --- */
.story-headline{
  display:grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 48px;
  margin-bottom: 110px;
}
.story-headline .st-eyebrow{
  display:inline-flex; align-items:center; gap:14px;
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .36em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 32px;
}
.story-headline .st-eyebrow .line{
  width: 36px; height:1px; background: var(--muted); display:inline-block;
}
.story-title{
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(44px, 5.4vw, 84px);
  line-height: 1.04;
  letter-spacing: .03em;
  color: var(--ink);
  margin: 0;
  text-wrap: pretty;
  max-width: 14ch;
}
.story-headline .st-tagline{
  font-family: var(--font-display);
  font-style: italic; font-weight: 300;
  font-size: 22px; line-height: 1.4;
  color: var(--ink-soft);
  letter-spacing: .02em;
  max-width: 320px;
  margin: 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hairline);
}

/* --- 9.3 編輯體：左圖右文 --- */
.story-editorial{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-bottom: 140px;
}

/* 圖片組 — 單張主圖 + CSS 裝飾 */
.story-imgs{
  position: relative;
  padding: 0 36px 36px 0;
}

/* 後方錯位細線框 */
.story-imgs::before{
  content: "";
  position: absolute;
  inset: 36px 0 0 36px;
  border: 1px solid var(--hairline-strong);
  z-index: 0;
  pointer-events: none;
}

.story-imgs .img-main{
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--paper);
  margin: 0;
  z-index: 1;
}
.story-imgs .img-main img{
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 1.2s cubic-bezier(.2,0,.2,1);
}
.story-imgs:hover .img-main img{ transform: scale(1.03); }

/* 內嵌細白線框 (藝術相框) */
.story-imgs .img-main::after{
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255,255,255,.4);
  pointer-events: none;
  z-index: 2;
}

/* 四角架構線 (L 型) */
.story-imgs .img-corners span{
  position: absolute;
  width: 18px; height: 18px;
  border: 0 solid var(--ink);
  z-index: 3;
  pointer-events: none;
}
.story-imgs .img-corners .c-tl{ top: -1px; left: -1px; border-top-width:1px; border-left-width:1px; }
.story-imgs .img-corners .c-tr{ top: -1px; right: -1px; border-top-width:1px; border-right-width:1px; }
.story-imgs .img-corners .c-bl{ bottom: -1px; left: -1px; border-bottom-width:1px; border-left-width:1px; }
.story-imgs .img-corners .c-br{ bottom: -1px; right: -1px; border-bottom-width:1px; border-right-width:1px; }

/* 左側垂直旋轉標籤 */
.story-imgs .img-vlabel{
  position: absolute;
  left: -14px;
  top: 0;
  bottom: 36px;
  display: flex;
  align-items: center;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-sans);
  font-size: 10px; letter-spacing: .42em; text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  z-index: 4;
}
.story-imgs .img-vlabel::before{
  content: "";
  width: 1px;
  height: 28px;
  background: currentColor;
  display: block;
  margin-bottom: 16px;
}

/* 右上角圓形鋼印 */
.story-imgs .img-seal{
  position: absolute;
  top: -28px;
  right: 0;
  width: 96px; height: 96px;
  border-radius: 50%;
  border: 1px solid var(--ink);
  background: var(--bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  z-index: 5;
  text-align: center;
}
.story-imgs .img-seal::before{
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px dashed var(--hairline-strong);
  border-radius: 50%;
}
.story-imgs .img-seal .s-no{
  font-family: var(--font-display);
  font-style: italic;
  font-size: 26px;
  line-height: 1;
  color: var(--ink);
  letter-spacing: .02em;
}
.story-imgs .img-seal .s-year{
  font-family: var(--font-sans);
  font-size: 8.5px; letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 4px;
}

.story-imgs .img-tag{
  position: absolute;
  left: 20px; top: 20px;
  font-family: var(--font-sans);
  font-size: 9.5px; letter-spacing: .32em; text-transform: uppercase;
  background: rgba(255,255,255,.92);
  color: var(--ink);
  padding: 8px 12px;
  z-index: 6;
}
.story-imgs .img-caption{
  display:flex; justify-content:space-between; align-items:baseline;
  margin-top: 18px;
  padding-right: 36px;
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--muted);
}
.story-imgs .img-caption .ic-key{
  display:inline-flex; align-items:center; gap:10px;
}
.story-imgs .img-caption .ic-key::before{
  content:""; width:18px; height:1px; background:var(--muted); display:inline-block;
}

/* 文字內容 */
.story-text{
  padding-top: 24px;
  max-width: 520px;
}
.story-text .st-quote{
  font-family: var(--font-display);
  font-style: italic; font-weight: 300;
  font-size: 28px; line-height: 1.45;
  color: var(--ink);
  letter-spacing: .02em;
  margin: 0 0 36px;
  padding-left: 20px;
  border-left: 1px solid var(--ink);
}
.story-text .st-quote::before{
  content: "“";
  font-size: 32px;
  margin-left: -8px;
  color: var(--ink);
}
.story-text p{
  font-family: var(--font-zh);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: .04em;
  color: var(--ink-soft);
  margin: 0 0 22px;
  text-wrap: pretty;
}
.story-text .st-quote + p::first-letter{
  font-family: var(--font-serif);
  font-size: 56px;
  float: left;
  line-height: .92;
  padding: 6px 12px 0 0;
  color: var(--ink);
  font-weight: 400;
}

.story-signature{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap: 32px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
}
.story-signature .ss-name{
  font-family: var(--font-display);
  font-style: italic; font-weight: 400;
  font-size: 30px; line-height: 1;
  color: var(--ink);
  letter-spacing: .02em;
}
.story-signature .ss-role{
  display:block;
  margin-top: 8px;
  font-family: var(--font-sans);
  font-style: normal; font-size: 10px; letter-spacing: .32em;
  text-transform: uppercase; color: var(--muted);
}
.story-signature .ss-cta{
  display:inline-flex; align-items:center; gap: 14px;
  font-family: var(--font-sans);
  font-size: 11.5px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--ink);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--ink);
  transition: gap .25s;
}
.story-signature .ss-cta:hover{ gap: 22px; }

/* --- 9.4 數據列 --- */
.story-stats{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 120px;
}
.story-stats .stat{
  padding: 44px 28px;
  border-right: 1px solid var(--hairline);
  display:flex; flex-direction: column; gap: 18px;
}
.story-stats .stat:last-child{ border-right: none; }
.story-stats .stat .s-key{
  font-family: var(--font-sans);
  font-size: 10px; letter-spacing: .36em; text-transform: uppercase;
  color: var(--muted);
}
.story-stats .stat .s-val{
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(48px, 4.6vw, 72px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--ink);
  display:inline-flex; align-items: flex-start;
}
.story-stats .stat .s-val sup{
  font-size: 22px; top: 18px;
  margin-left: 4px; font-weight: 300;
  color: var(--muted);
}
.story-stats .stat .s-val .unit{
  font-family: var(--font-zh);
  font-size: 14px; letter-spacing: .15em;
  align-self: flex-end;
  margin-left: 8px;
  margin-bottom: 10px;
  color: var(--muted);
}
.story-stats .stat .s-desc{
  font-family: var(--font-zh);
  font-size: 13px; line-height: 1.6;
  letter-spacing: .06em;
  color: var(--ink-soft);
}

/* --- 9.5 年代軸 (水平捲動) --- */
.story-timeline{
  position: relative;
}
.story-timeline .tl-head{
  display:flex; justify-content:space-between; align-items: baseline;
  margin-bottom: 40px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hairline);
  gap: 24px;
}
.story-timeline .tl-head .tl-title-wrap h3{
  font-family: var(--font-serif);
  font-weight: 300; font-size: 26px;
  letter-spacing: .12em;
  color: var(--ink);
  margin: 0;
}
.story-timeline .tl-head .tl-en{
  display: block;
  margin-top: 8px;
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .36em;
  text-transform: uppercase; color: var(--muted);
}
.story-timeline .tl-controls{
  display: flex; align-items: center; gap: 8px;
}
.story-timeline .tl-btn{
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--hairline-strong);
  background: transparent;
  color: var(--ink);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all .3s ease;
}
.story-timeline .tl-btn:hover:not(:disabled){
  background: var(--ink); color: #fff; border-color: var(--ink);
}
.story-timeline .tl-btn:disabled{ opacity: .25; cursor: default; }
.story-timeline .tl-btn svg{ width: 14px; height: 14px; }

/* 視窗容器 + 軌道 */
.story-timeline .tl-viewport{
  position: relative;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  cursor: grab;
  /* 隱藏原生 scrollbar */
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.story-timeline .tl-viewport::-webkit-scrollbar{ display: none; }
.story-timeline .tl-viewport.is-dragging{ cursor: grabbing; scroll-behavior: auto; }
.story-timeline .tl-viewport.is-dragging *{ pointer-events: none; user-select: none; }

.story-timeline ol{
  list-style: none; padding: 0; margin: 0;
  display: flex;
  position: relative;
  /* 軌道虛線 */
}
.story-timeline ol::before{
  content: "";
  position: absolute;
  left: 0; right: 0; top: 28px;
  height: 1px;
  background: repeating-linear-gradient(
    to right,
    var(--hairline-strong) 0 4px,
    transparent 4px 8px
  );
  z-index: 0;
}
.story-timeline li{
  flex: 0 0 230px;
  position: relative;
  padding: 60px 32px 16px 0;
  z-index: 1;
}
.story-timeline li::before{
  content: "";
  position: absolute;
  left: 0; top: 23px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--ink);
  transition: all .3s ease;
}
.story-timeline li.is-current::before{
  background: var(--ink);
  box-shadow: 0 0 0 4px var(--bg), 0 0 0 5px var(--ink);
}
.story-timeline li:hover::before{
  background: var(--ink);
}
.story-timeline li .tl-year{
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 30px; line-height: 1;
  letter-spacing: .04em;
  color: var(--ink);
  margin-bottom: 14px;
  transition: color .3s ease;
}
.story-timeline li .tl-text{
  font-family: var(--font-zh);
  font-size: 13.5px; line-height: 1.65;
  letter-spacing: .06em;
  color: var(--ink-soft);
  max-width: 18ch;
  text-wrap: pretty;
}
.story-timeline li.is-current .tl-year{ color: var(--ink); font-weight: 400; }

/* 下方進度條 */
.story-timeline .tl-progress{
  position: relative;
  margin-top: 36px;
  height: 1px;
  background: var(--hairline);
}
.story-timeline .tl-progress .tl-progress-bar{
  position: absolute; top: -1px; left: 0;
  height: 3px;
  background: var(--ink);
  width: 0%;
  transition: width .25s cubic-bezier(.2,0,.2,1);
}
.story-timeline .tl-meta{
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 14px;
  font-family: var(--font-sans);
  font-size: 10px; letter-spacing: .3em; text-transform: uppercase;
  color: var(--muted);
}
.story-timeline .tl-meta .tl-meta-num{
  font-family: var(--font-display); font-size: 16px;
  letter-spacing: .04em; color: var(--ink); font-style: italic;
}


/* ==========================================================================
   10. 品牌故事 響應式
   ========================================================================== */
@media (max-width: 1199.98px){
  .brand-story{ padding: 100px 32px 90px; }
  .story-head{ margin-bottom: 64px; }
  .story-headline{
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 80px;
  }
  .story-headline .st-tagline{
    max-width: none;
    padding-bottom: 0;
    border-bottom: none;
    border-top: 1px solid var(--hairline);
    padding-top: 18px;
  }
  .story-editorial{
    grid-template-columns: 1fr;
    gap: 64px;
    margin-bottom: 90px;
  }
  .story-imgs{
    padding: 0 24px 24px 0;
    max-width: 540px;
    margin: 0 auto;
  }
  .story-imgs::before{ inset: 24px 0 0 24px; }
  .story-imgs .img-seal{
    width: 80px; height: 80px;
    top: -22px;
  }
  .story-imgs .img-seal .s-no{ font-size: 22px; }
  .story-imgs .img-vlabel{ left: -22px; font-size: 9px; }
  .story-text{ max-width: none; }
  .story-stats{
    grid-template-columns: repeat(2, 1fr);
    margin-bottom: 90px;
  }
  .story-stats .stat:nth-child(2n){ border-right: none; }
  .story-stats .stat:nth-child(-n+2){ border-bottom: 1px solid var(--hairline); }
  .story-timeline li{ flex-basis: 200px; }
}

@media (max-width: 575.98px){
  .brand-story{ padding: 72px 20px 70px; }
  .story-head{
    flex-direction: column; align-items: flex-start;
    gap: 18px;
    margin-bottom: 48px;
  }
  .story-head .sh-label{ text-align: left; }
  .story-headline{ margin-bottom: 60px; }
  .story-headline .st-tagline{ font-size: 18px; }
  .story-imgs .img-vlabel{ display: none; }
  .story-imgs .img-seal{ width: 64px; height: 64px; top: -16px; }
  .story-imgs .img-seal .s-no{ font-size: 18px; }
  .story-imgs .img-seal .s-year{ font-size: 7.5px; letter-spacing: .25em; }
  .story-text .st-quote{ font-size: 22px; padding-left: 16px; margin-bottom: 28px; }
  .story-text p:first-of-type::first-letter{ font-size: 44px; }
  .story-signature{ flex-direction: column; align-items: flex-start; gap: 20px; }
  .story-signature .ss-name{ font-size: 26px; }
  .story-stats{ grid-template-columns: 1fr; }
  .story-stats .stat{
    border-right: none !important;
    border-bottom: 1px solid var(--hairline);
    padding: 28px 16px;
  }
  .story-stats .stat:last-child{ border-bottom: none; }
  .story-timeline .tl-head h3,
  .story-timeline .tl-head .tl-title-wrap h3{ font-size: 22px; }
  .story-timeline li{ flex-basis: 180px; padding-right: 24px; }
  .story-timeline .tl-btn{ width: 38px; height: 38px; }
}


/* ==========================================================================
   11. 精選石材系列 Stone Collection
   ========================================================================== */
.stone-collection{
  background: var(--bg);
  padding: 140px 56px 130px;
  position: relative;
}
.collection-inner{
  max-width: 1440px;
  margin: 0 auto;
}

/* --- 11.1 區塊標頭 --- */
.collection-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 90px;
  font-family: var(--font-sans);
  font-size: 11px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--muted);
  gap: 24px;
}
.collection-head .ch-index{
  display:inline-flex; align-items:center; gap:14px; color: var(--ink);
}
.collection-head .ch-index .num{
  font-family: var(--font-display);
  font-size: 32px; line-height:1; letter-spacing: .04em; font-weight: 300;
}
.collection-head .ch-index .line{
  width: 36px; height:1px; background: var(--ink); display:inline-block;
}
.collection-head .ch-label{ text-align: center; }
.collection-head .ch-meta{
  display:inline-flex; align-items:center; gap:18px; color: var(--ink);
}
.collection-head .ch-meta .count{
  font-family: var(--font-display);
  font-size: 22px; font-style: italic; line-height:1;
  letter-spacing: .04em; color: var(--ink);
}
.collection-head .ch-meta .count-label{
  font-size: 10.5px; letter-spacing: .3em; color: var(--muted);
}

/* --- 11.2 主標 --- */
.collection-headline{
  display:grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 48px;
  margin-bottom: 56px;
}
.collection-headline .cl-eyebrow{
  display:inline-flex; align-items:center; gap:14px;
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .36em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
}
.collection-headline .cl-eyebrow .line{
  width: 36px; height:1px; background: var(--muted); display:inline-block;
}
.collection-title{
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(40px, 5vw, 76px);
  line-height: 1.06;
  letter-spacing: .03em;
  color: var(--ink);
  margin: 0;
  max-width: 16ch;
  text-wrap: pretty;
}
.collection-headline .cl-tagline{
  font-family: var(--font-display);
  font-style: italic; font-weight: 300;
  font-size: 20px; line-height: 1.5;
  color: var(--ink-soft);
  letter-spacing: .02em;
  max-width: 280px;
  margin: 0;
}

/* --- 11.3 工具列 --- */
.collection-toolbar{
  display:flex; align-items:center; justify-content:space-between;
  padding: 22px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 56px;
  font-family: var(--font-sans);
  font-size: 11px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--ink-soft);
  gap: 24px;
}
.collection-toolbar .ct-left{ display:inline-flex; align-items:center; gap: 24px; }
.collection-toolbar .ct-bullet{ display:inline-flex; align-items:center; gap: 10px; }
.collection-toolbar .ct-bullet::before{
  content:""; width: 6px; height: 6px; background: var(--ink); border-radius: 50%;
}
.collection-toolbar .ct-divider{
  width: 1px; height: 14px; background: var(--hairline-strong);
}
.collection-toolbar .ct-right{ display:inline-flex; align-items:center; gap: 24px; }
.collection-toolbar .ct-cta{
  display:inline-flex; align-items:center; gap: 12px;
  color: var(--ink);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  transition: gap .25s;
}
.collection-toolbar .ct-cta:hover{ gap: 22px; }


/* --- 11.4 商品網格 --- */
.collection-grid{
  margin-bottom: 64px;
  --bs-gutter-x: 32px;
  --bs-gutter-y: 64px;
}

/* --- 11.5 商品卡 --- */
.stone-card{
  position: relative;
  display: block;
  height: 100%;
}
.stone-card .sc-link{
  display:flex; flex-direction: column;
  height: 100%;
  color: var(--ink);
}
.stone-card .sc-img{
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--paper);
  margin: 0 0 20px;
}
.stone-card .sc-img img{
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.4s cubic-bezier(.2,0,.2,1);
}
.stone-card:hover .sc-img img{ transform: scale(1.05); }

/* 圖片內角架構線 (hover 顯現) */
.stone-card .sc-img::before,
.stone-card .sc-img::after{
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  z-index: 3;
  border: 0 solid rgba(255,255,255,.55);
  opacity: 0;
  transition: opacity .35s ease, width .35s ease, height .35s ease;
}
.stone-card .sc-img::before{
  top: 12px; left: 12px;
  border-top-width: 1px; border-left-width: 1px;
}
.stone-card .sc-img::after{
  bottom: 12px; right: 12px;
  border-bottom-width: 1px; border-right-width: 1px;
}
.stone-card:hover .sc-img::before,
.stone-card:hover .sc-img::after{
  opacity: 1; width: 24px; height: 24px;
}

/* 左上產地標籤 */
.stone-card .sc-origin{
  position: absolute;
  top: 14px; left: 14px;
  font-family: var(--font-sans);
  font-size: 9px; letter-spacing: .32em; text-transform: uppercase;
  background: rgba(255,255,255,.92);
  color: var(--ink);
  padding: 6px 10px;
  z-index: 4;
}

/* 右上序號 */
.stone-card .sc-no{
  position: absolute;
  top: 14px; right: 14px;
  font-family: var(--font-display);
  font-style: italic; font-weight: 300;
  font-size: 26px; line-height: 1;
  color: #fff;
  text-shadow: 0 1px 12px rgba(20,20,20,.45);
  letter-spacing: .02em;
  z-index: 4;
}

/* 底部暗色漸層 (hover 顯現) */
.stone-card .sc-tint{
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(20,20,20,.55) 100%);
  opacity: 0;
  transition: opacity .4s ease;
  pointer-events: none;
}
.stone-card:hover .sc-tint{ opacity: 1; }

/* Hover 觀片字樣 */
.stone-card .sc-view{
  position: absolute;
  left: 20px; bottom: 20px;
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .3em; text-transform: uppercase;
  color: #fff;
  opacity: 0; transform: translateY(8px);
  transition: opacity .45s ease, transform .45s ease;
  z-index: 4;
}
.stone-card .sc-view .arrow{
  width: 26px; height: 1px; background: #fff; position: relative;
}
.stone-card .sc-view .arrow::after{
  content:""; position: absolute; right: 0; top: 50%;
  width: 7px; height: 7px;
  border-right: 1px solid #fff; border-top: 1px solid #fff;
  transform: translateY(-50%) rotate(45deg);
}
.stone-card:hover .sc-view{ opacity: 1; transform: translateY(0); }

/* 卡片底部資訊 */
.stone-card .sc-body{ padding-right: 14px; }
.stone-card .sc-name{
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: .04em;
  color: var(--ink);
  margin: 0 0 8px;
  text-wrap: pretty;
  transition: color .25s ease;
}
.stone-card .sc-meta{
  display:flex; align-items: baseline; justify-content: space-between;
  gap: 16px;
}
.stone-card .sc-desc{
  display:inline-flex; align-items: baseline; gap: 8px;
  font-family: var(--font-zh);
  font-size: 13px; letter-spacing: .06em;
  color: var(--muted);
  line-height: 1.5;
}
.stone-card .sc-desc .bi{ color: var(--ink-soft); font-size: 11px; }
.stone-card .sc-arrow{
  display:inline-block; flex-shrink: 0;
  width: 16px; height: 16px;
  position: relative;
  transition: transform .35s ease;
}
.stone-card .sc-arrow::after{
  content:""; position: absolute;
  top: 50%; right: 4px;
  width: 7px; height: 7px;
  border-right: 1px solid var(--ink);
  border-top: 1px solid var(--ink);
  transform: translateY(-50%) rotate(45deg);
}
.stone-card:hover .sc-arrow{ transform: translateX(4px); }


/* --- 11.6 區塊底部 --- */
.collection-foot{
  display:flex; justify-content: space-between; align-items: center;
  padding-top: 44px;
  border-top: 1px solid var(--hairline);
  gap: 24px;
}
.collection-foot .cf-note{
  font-family: var(--font-display);
  font-style: italic; font-weight: 300;
  font-size: 18px; color: var(--ink-soft);
  letter-spacing: .02em;
  max-width: 520px;
}
.collection-foot .cf-cta{
  display:inline-flex; align-items: center; gap: 16px;
  padding: 16px 28px;
  border: 1px solid var(--ink);
  font-family: var(--font-sans);
  font-size: 11.5px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--ink);
  transition: all .3s;
}
.collection-foot .cf-cta:hover{ background: var(--ink); color: #fff; gap: 24px; }
.collection-foot .cf-cta .dot{
  width: 4px; height: 4px; border-radius: 50%; background: currentColor;
}


/* ==========================================================================
   12. Stone Collection 響應式
   ========================================================================== */
@media (max-width: 1199.98px){
  .stone-collection{ padding: 100px 32px 100px; }
  .collection-head{ margin-bottom: 56px; }
  .collection-headline{
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 40px;
  }
  .collection-headline .cl-tagline{
    max-width: none;
    padding-top: 16px;
    border-top: 1px solid var(--hairline);
  }
  .collection-toolbar{ margin-bottom: 44px; }
  .stone-card .sc-name{ font-size: 20px; }
  .collection-grid{ --bs-gutter-y: 48px; }
}

@media (max-width: 767.98px){
  .stone-collection{ padding: 80px 24px 80px; }
  .collection-head{
    flex-wrap: wrap; row-gap: 16px;
    margin-bottom: 40px;
  }
  .collection-head .ch-label{ text-align: left; flex: 1 1 100%; order: 3; }
  .collection-toolbar{
    flex-direction: column; align-items: flex-start; gap: 14px;
    padding: 18px 0;
  }
  .collection-toolbar .ct-divider{ display: none; }
  .stone-card .sc-no{ font-size: 22px; }
  .collection-foot{
    flex-direction: column; align-items: flex-start; gap: 24px;
  }
}

@media (max-width: 575.98px){
  .stone-collection{ padding: 64px 20px 64px; }
  .stone-card .sc-name{ font-size: 19px; }
  .stone-card .sc-img{ margin-bottom: 16px; }
  .collection-grid{ --bs-gutter-y: 40px; }
}


/* ==========================================================================
   13. Footer 頁尾
   ========================================================================== */

/* --- 13.1 Newsletter 訂閱條 (頁尾上方) --- */
.footer-newsletter{
  background: var(--paper);
  border-top: 1px solid var(--hairline);
  padding: 80px 56px;
}
.fn-inner{
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
}
.fn-text{
  display: flex; flex-direction: column; gap: 14px;
}
.fn-eyebrow{
  display:inline-flex; align-items:center; gap: 14px;
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .36em; text-transform: uppercase;
  color: var(--muted);
}
.fn-eyebrow .line{
  width: 36px; height: 1px; background: var(--muted); display: inline-block;
}
.fn-title{
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.15;
  letter-spacing: .04em;
  color: var(--ink);
  margin: 0;
  max-width: 14ch;
}
.fn-sub{
  font-family: var(--font-zh);
  font-weight: 300;
  font-size: 13.5px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--ink-soft);
  max-width: 40ch;
  margin: 0;
}

.fn-form{
  display: flex; flex-direction: column; gap: 14px;
}
.fn-field{
  position: relative;
  display: flex; align-items: center;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 6px;
}
.fn-field input{
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 12px 0;
  font-family: var(--font-zh);
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--ink);
}
.fn-field input::placeholder{
  color: var(--muted);
  font-style: italic;
}
.fn-field button{
  background: transparent;
  border: none; padding: 4px 0 4px 16px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--font-sans);
  font-size: 11px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--ink);
  transition: gap .25s ease;
}
.fn-field button:hover{ gap: 22px; }
.fn-field button .arrow{
  width: 28px; height: 1px; background: var(--ink); position: relative;
}
.fn-field button .arrow::after{
  content:""; position: absolute; right: 0; top: 50%;
  width: 7px; height: 7px;
  border-right: 1px solid var(--ink); border-top: 1px solid var(--ink);
  transform: translateY(-50%) rotate(45deg);
}
.fn-privacy{
  font-family: var(--font-sans);
  font-size: 10px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--muted);
}
.fn-privacy a{
  color: var(--ink-soft);
  border-bottom: 1px solid var(--hairline-strong);
  padding-bottom: 1px;
}


/* --- 13.2 主 Footer --- */
.site-footer{
  background: var(--bg);
  border-top: 1px solid var(--hairline);
  padding: 100px 56px 0;
}
.sf-inner{
  max-width: 1440px;
  margin: 0 auto;
}

/* 主要欄位網格 */
.sf-grid{
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr 1.2fr;
  gap: 56px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--hairline);
}

/* --- 13.3 品牌欄 --- */
.sf-brand{
  display: flex; flex-direction: column; gap: 28px;
}
.sf-brand-mark{
  display: inline-flex; align-items: center; gap: 14px;
}
.sf-brand-mark .bm-box{
  width: 44px; height: 44px;
  border: 1px solid var(--ink);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.sf-brand-mark .bm-box::before,
.sf-brand-mark .bm-box::after{
  content:""; position: absolute; background: var(--ink);
}
.sf-brand-mark .bm-box::before{ width: 22px; height: 1px; }
.sf-brand-mark .bm-box::after{ width: 1px; height: 22px; }
.sf-brand-mark .bm-box .bm-zh{
  position: absolute; inset: 0; margin: auto;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 16px; font-weight: 500;
  color: var(--ink); background: var(--bg);
  z-index: 2;
}
.sf-brand-mark .bm-text{
  display: flex; flex-direction: column; gap: 6px; line-height: 1;
}
.sf-brand-mark .bm-zh-name{
  font-family: var(--font-serif); font-weight: 500;
  font-size: 20px; letter-spacing: .22em;
  color: var(--ink);
}
.sf-brand-mark .bm-en-name{
  font-family: var(--font-sans);
  font-size: 10px; letter-spacing: .32em;
  color: var(--muted); text-transform: uppercase;
}
.sf-brand .sf-motto{
  font-family: var(--font-display);
  font-style: italic; font-weight: 300;
  font-size: 22px; line-height: 1.4;
  color: var(--ink);
  letter-spacing: .02em;
  margin: 0;
  max-width: 22ch;
}
.sf-brand .sf-desc{
  font-family: var(--font-zh);
  font-weight: 300;
  font-size: 13px; line-height: 1.85;
  letter-spacing: .04em;
  color: var(--ink-soft);
  margin: 0;
  max-width: 36ch;
}

.sf-socials{
  display: flex; gap: 12px;
  margin-top: 8px;
}
.sf-socials a{
  width: 40px; height: 40px;
  border: 1px solid var(--hairline-strong);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink);
  transition: all .25s ease;
}
.sf-socials a:hover{
  background: var(--ink); color: #fff; border-color: var(--ink);
}
.sf-socials svg{ width: 14px; height: 14px; }


/* --- 13.4 站點地圖欄 --- */
.sf-col h4{
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hairline);
}
.sf-col ul{
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 14px;
}
.sf-col li a{
  position: relative;
  display: inline-flex; align-items: baseline; gap: 10px;
  font-family: var(--font-zh);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--ink);
  transition: transform .25s ease;
}
.sf-col li a::before{
  content:""; width: 8px; height: 1px;
  background: var(--ink);
  opacity: 0;
  transition: opacity .25s ease, width .35s ease;
}
.sf-col li a:hover{ transform: translateX(4px); }
.sf-col li a:hover::before{ opacity: 1; width: 14px; }
.sf-col li a .sf-en{
  font-family: var(--font-sans);
  font-size: 9.5px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--muted);
}


/* --- 13.5 展示間欄 --- */
.sf-showroom{
  display: flex; flex-direction: column; gap: 24px;
}
.sf-showroom-item{
  display: flex; flex-direction: column; gap: 6px;
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--hairline-strong);
}
.sf-showroom-item:last-child{ border-bottom: none; padding-bottom: 0; }
.sf-showroom-item .sr-label{
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-sans);
  font-size: 9.5px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--muted);
}
.sf-showroom-item .sr-label::before{
  content:""; width: 5px; height: 5px; border-radius: 50%;
  background: #2f7a4d;
}
.sf-showroom-item .sr-name{
  font-family: var(--font-serif); font-weight: 400;
  font-size: 16px; letter-spacing: .08em;
  color: var(--ink);
  margin-top: 4px;
}
.sf-showroom-item .sr-addr{
  font-family: var(--font-zh);
  font-size: 12.5px; line-height: 1.7;
  letter-spacing: .04em;
  color: var(--ink-soft);
}
.sf-showroom-item .sr-coord{
  font-family: var(--font-sans);
  font-size: 9.5px; letter-spacing: .28em;
  color: var(--muted);
  margin-top: 4px;
}


/* --- 13.6 聯繫欄 --- */
.sf-contact{
  display: flex; flex-direction: column; gap: 22px;
}
.sf-contact-row{
  display: flex; flex-direction: column; gap: 6px;
}
.sf-contact-row .sc-label{
  font-family: var(--font-sans);
  font-size: 9.5px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--muted);
}
.sf-contact-row .sc-val{
  font-family: var(--font-serif);
  font-size: 18px; letter-spacing: .04em;
  color: var(--ink);
}
.sf-contact-row a.sc-val{
  transition: opacity .2s;
}
.sf-contact-row a.sc-val:hover{ opacity: .6; }
.sf-contact-row .sc-note{
  font-family: var(--font-zh);
  font-size: 12px; letter-spacing: .04em;
  color: var(--muted);
  margin-top: 4px;
}
.sf-hours-list{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  font-family: var(--font-zh);
  font-size: 12.5px; letter-spacing: .06em;
  color: var(--ink-soft);
}
.sf-hours-list dt{
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 10px; letter-spacing: .28em; text-transform: uppercase;
}
.sf-hours-list dd{ margin: 0; }


/* --- 13.7 底部法律條 --- */
.sf-bottom{
  display: flex; justify-content: space-between; align-items: center;
  padding: 32px 0;
  gap: 24px;
  flex-wrap: wrap;
  font-family: var(--font-sans);
  font-size: 10.5px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--muted);
}
.sf-bottom .sf-copyright{
  display: inline-flex; align-items: center; gap: 18px;
}
.sf-bottom .sf-copyright .sf-est{
  font-family: var(--font-display); font-style: italic;
  font-size: 14px; color: var(--ink-soft);
  letter-spacing: .02em;
}
.sf-bottom .sf-legal{
  display: inline-flex; align-items: center; gap: 22px;
}
.sf-bottom .sf-legal a{
  color: var(--ink-soft);
  transition: color .2s ease;
}
.sf-bottom .sf-legal a:hover{ color: var(--ink); }
.sf-bottom .sf-legal .sf-sep{
  width: 1px; height: 10px; background: var(--hairline-strong);
}
.sf-bottom .sf-lang{
  display: inline-flex; gap: 14px;
}
.sf-bottom .sf-lang span{
  cursor: pointer; padding-bottom: 2px;
}
.sf-bottom .sf-lang .active{
  border-bottom: 1px solid var(--ink);
  color: var(--ink);
}


/* --- 13.8 回到頂端浮動鈕 --- */
.sf-to-top{
  position: fixed;
  right: 32px; bottom: 32px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  border: none;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  visibility: hidden;
  transition: opacity .35s ease, transform .35s ease, visibility 0s .35s linear;
  z-index: 40;
  box-shadow: 0 14px 28px -14px rgba(20,20,20,.4);
}
.sf-to-top.is-visible{
  opacity: 1; transform: translateY(0); visibility: visible;
  transition: opacity .35s ease, transform .35s ease, visibility 0s linear;
}
.sf-to-top:hover{
  background: #000;
  transform: translateY(-2px);
}
.sf-to-top svg{ width: 16px; height: 16px; }
.sf-to-top::before{
  content: "TOP";
  position: absolute;
  bottom: -22px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-sans);
  font-size: 9px; letter-spacing: .32em;
  color: var(--muted);
}


/* ==========================================================================
   14. Footer 響應式
   ========================================================================== */
@media (max-width: 1199.98px){
  .footer-newsletter{ padding: 64px 32px; }
  .fn-inner{ grid-template-columns: 1fr; gap: 36px; }
  .site-footer{ padding: 80px 32px 0; }
  .sf-grid{
    grid-template-columns: 1fr 1fr;
    gap: 48px 40px;
    padding-bottom: 56px;
  }
  .sf-brand{ grid-column: 1 / -1; }
  .sf-to-top{ right: 20px; bottom: 20px; width: 46px; height: 46px; }
}

@media (max-width: 767.98px){
  .footer-newsletter{ padding: 48px 20px; }
  .fn-field input{ font-size: 15px; }
  .site-footer{ padding: 64px 20px 0; }
  .sf-grid{
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .sf-bottom{
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 24px 0;
  }
  .sf-bottom .sf-legal{
    flex-wrap: wrap; gap: 14px;
  }
  .sf-bottom .sf-legal .sf-sep{ display: none; }
}

@media (max-width: 575.98px){
  .fn-title{ font-size: 26px; }
  .sf-brand .sf-motto{ font-size: 18px; }
}