:root{
  --navy:#063676;            /* 品牌主色 · 取自 Logo 實際色值 */
  --navy-deep:#041F45;
  --navy-ink:#07162E;
  --balsa:#D8BE94;           /* 巴沙木端面色 · 取自實拍 */
  --balsa-dim:#B9996A;
  --paper:#F3F5F8;
  --surface:#FFFFFF;
  --surface-2:#EAEEF3;
  --ink:#0C1420;
  --ink-2:#48525F;
  --ink-3:#77818E;
  --line:#D9E0E8;
  --line-strong:#B9C4D1;
  --ok:#1C6E51;
  --on-navy:#FFFFFF;
  --pend:#9A6512;
  --pend-bg:#FBF1DC;
  --shadow:0 1px 2px rgba(6,54,118,.06), 0 8px 24px -12px rgba(6,54,118,.18);
  --sans:"Source Sans 3","Noto Sans TC",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --cond:"Saira Condensed","Noto Sans TC",-apple-system,"PingFang SC",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --maxw:1160px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#0A121E; --surface:#101C2C; --surface-2:#16253A;
    --ink:#E9EEF5; --ink-2:#A9B6C6; --ink-3:#7E8DA0;
    --line:#22344B; --line-strong:#334966;
    --navy:#5C9BEA; --navy-deep:#0B1B31; --navy-ink:#07121F;
    --balsa:#E0C79F; --balsa-dim:#C4A87C;
    --pend-bg:#2C2312; --pend:#E0B767; --on-navy:#07162E;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px -14px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"]{
  --paper:#0A121E; --surface:#101C2C; --surface-2:#16253A;
  --ink:#E9EEF5; --ink-2:#A9B6C6; --ink-3:#7E8DA0;
  --line:#22344B; --line-strong:#334966;
  --navy:#5C9BEA; --navy-deep:#0B1B31; --navy-ink:#07121F;
  --balsa:#E0C79F; --balsa-dim:#C4A87C;
  --pend-bg:#2C2312; --pend:#E0B767; --on-navy:#07162E;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px -14px rgba(0,0,0,.7);
}

*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
section{padding-block:clamp(48px,7vw,88px)}
h1,h2,h3{font-family:var(--cond);font-weight:700;letter-spacing:.01em;text-wrap:balance;margin:0}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.15}
h3{font-size:19px;line-height:1.3}
p{margin:0;text-wrap:pretty}
.eyebrow{font-family:var(--cond);font-weight:600;font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--navy)}
.lede{color:var(--ink-2);max-width:62ch;font-size:17px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.sec-head{display:flex;flex-direction:column;gap:10px;margin-bottom:34px}

/* ---------- 待確認佔位 ---------- */
.pend{display:inline-flex;align-items:center;gap:5px;background:var(--pend-bg);color:var(--pend);
  font-family:var(--mono);font-size:11.5px;font-weight:500;padding:1px 7px;border-radius:3px;
  border:1px dashed currentColor;white-space:nowrap;vertical-align:middle}

/* ---------- 頂欄 ---------- */
.utility{background:var(--navy-ink);color:#9FB4D2;font-size:13px}
.utility .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:38px;flex-wrap:wrap}
.utility a{text-decoration:none;color:#C8D7EC}
.utility a:hover{color:#fff}
.lang{display:flex;gap:2px;font-family:var(--cond);letter-spacing:.1em;font-size:12px}
.lang span,.lang a{padding:2px 9px;border-radius:2px}
.lang .on{background:rgba(255,255,255,.14);color:#fff}

header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--surface) 88%,transparent);
  backdrop-filter:saturate(150%) blur(12px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:28px;min-height:66px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.brand svg{width:30px;height:auto;color:var(--navy)}
.brand b{font-family:var(--cond);font-size:20px;letter-spacing:.14em;font-weight:700;line-height:1}
.brand small{display:block;font-size:10.5px;letter-spacing:.12em;color:var(--ink-3);font-family:var(--cond);margin-top:2px}
nav.main{margin-left:auto;display:flex;gap:26px;font-size:15px}
nav.main a{text-decoration:none;color:var(--ink-2);padding-block:6px;border-bottom:2px solid transparent}
nav.main a:hover{color:var(--navy);border-bottom-color:var(--navy)}
@media(max-width:860px){nav.main{display:none}}

/* ---------- 按鈕 · chevron 母題取自名片 ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--cond);font-weight:600;font-size:16px;
  letter-spacing:.06em;padding:12px 26px;text-decoration:none;border:1.5px solid transparent;position:relative;
  clip-path:polygon(0 0,100% 0,100% 100%,14px 100%,0 calc(100% - 14px));transition:.18s ease}
.btn-primary{background:var(--navy);color:var(--on-navy)}
.btn-primary:hover{background:var(--navy-deep)}
.btn-ghost{border-color:currentColor;color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}

/* ---------- Hero ---------- */
.hero{background:var(--navy-ink);color:#EAF1FB;position:relative;overflow:hidden;padding-block:0}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:0;align-items:stretch}
.hero-copy{padding:clamp(40px,5vw,74px) 20px clamp(46px,5vw,78px);max-width:640px;margin-left:auto;width:100%}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.08;color:#fff;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--balsa)}
.hero-sub{color:#A9C0DE;font-size:17px;max-width:46ch;margin-bottom:26px}
.slogan{font-family:var(--cond);letter-spacing:.2em;font-size:12.5px;text-transform:uppercase;color:var(--balsa);margin-bottom:16px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.hero-media{position:relative;min-height:340px}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:var(--pos,50% 50%)}
.hero-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,var(--navy-ink) 0 6%,rgba(7,22,46,.55) 34%,rgba(7,22,46,.12) 70%)}
.hero-chips{display:grid;grid-template-columns:repeat(4,auto);justify-content:start;
  border-top:1px solid rgba(255,255,255,.14);padding-top:18px}
.hero-chips div{padding-right:clamp(14px,2.2vw,26px);margin-right:clamp(14px,2.2vw,26px);
  border-right:1px solid rgba(255,255,255,.14)}
.hero-chips div:last-child{border-right:0;margin-right:0;padding-right:0}
@media(max-width:640px){
  .hero-chips{grid-template-columns:repeat(2,1fr);row-gap:18px}
  .hero-chips div:nth-child(2n){border-right:0;margin-right:0;padding-right:0}
}
.hero-chips b{display:block;font-family:var(--mono);font-size:19px;font-weight:600;color:#fff;font-variant-numeric:tabular-nums}
.hero-chips span{font-size:12.5px;color:#8FA8C9;letter-spacing:.04em}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-media{min-height:230px;order:-1}
  .hero-media::after{background:linear-gradient(180deg,rgba(7,22,46,.25),var(--navy-ink) 96%)}
  .hero-copy{margin-left:0;max-width:none}
}

/* ---------- 應用 ---------- */
.apps{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(24px,4vw,56px);align-items:start}
.app-primary{position:relative}
.app-primary figure{margin:0;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}
.app-primary img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;object-position:var(--pos,50% 50%)}
.app-primary figcaption{padding:14px 18px;font-size:13.5px;color:var(--ink-2);border-top:1px solid var(--line)}
.app-list{display:flex;flex-direction:column}
.app-row{display:grid;grid-template-columns:auto 1fr;gap:16px;padding-block:18px;border-bottom:1px solid var(--line)}
.app-row:first-child{padding-top:0}
.app-row .k{font-family:var(--mono);font-size:12px;color:var(--navy);padding-top:4px}
.app-row h3{margin-bottom:3px}
.app-row p{font-size:14.5px;color:var(--ink-2)}
@media(max-width:820px){.apps{grid-template-columns:1fr}}

/* ---------- 價值鏈 ---------- */
.chain-sec{background:var(--navy-ink);color:#E6EEFA}
.chain-sec .eyebrow{color:var(--balsa)}
.chain-sec h2{color:#fff}
.chain-sec .lede{color:#A9C0DE}
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(232px,1fr);gap:14px;overflow-x:auto;
  scroll-snap-type:x mandatory;padding-bottom:14px;scrollbar-width:thin}
.step{scroll-snap-align:start;background:#0D1D35;border:1px solid #1B3050}
.step img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;object-position:var(--pos,50% 50%);filter:saturate(.92)}
.step .body{padding:14px 16px 18px}
.step .n{font-family:var(--mono);font-size:11.5px;color:var(--balsa);letter-spacing:.1em}
.step h3{color:#fff;font-size:17px;margin:4px 0 5px}
.step p{font-size:13.5px;color:#9BB2D0;line-height:1.55}
.rail-hint{font-size:12.5px;color:#7E97B8;margin-top:8px;font-family:var(--mono)}

/* 端面紋理帶 */
.band{aspect-ratio:2400/356;min-height:130px;max-height:320px;overflow:hidden;position:relative;background:var(--navy-ink)}
.band img{width:100%;height:100%;object-fit:cover;object-position:var(--pos,50% 50%)}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--navy-ink),transparent 12%,transparent 88%,var(--navy-ink))}

/* ---------- 產品形態 ---------- */
.prods{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:900px){.prods{grid-template-columns:repeat(2,1fr)}}
@media(max-width:470px){.prods{grid-template-columns:1fr}}
.prod{background:var(--surface);border:1px solid var(--line);display:flex;flex-direction:column}
.prod img{width:100%;height:auto;aspect-ratio:1;object-fit:cover;object-position:var(--pos,50% 50%)}
.prod .body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.prod .code{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--navy);font-weight:600}
.prod h3{font-size:18px}
.prod p{font-size:14px;color:var(--ink-2);flex:1}
.prod dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:3px 10px;font-size:13px;border-top:1px solid var(--line);padding-top:10px}
.prod dt{color:var(--ink-3)}
.prod dd{margin:0;font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 參數表 ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--line);background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:14.5px}
caption{text-align:left;padding:14px 18px;font-size:13px;color:var(--ink-3);border-bottom:1px solid var(--line)}
th,td{text-align:left;padding:11px 18px;border-bottom:1px solid var(--line)}
thead th{font-family:var(--cond);font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-navy);background:var(--navy);border-bottom:0}
tbody tr:last-child td{border-bottom:0}
td.num{font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap}
tbody tr:nth-child(even){background:color-mix(in srgb,var(--surface-2) 45%,transparent)}

/* ---------- QC ---------- */
.qc{display:grid;grid-template-columns:1fr 340px;gap:clamp(24px,4vw,48px);align-items:start}
@media(max-width:900px){.qc{grid-template-columns:1fr}}
.defects{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
@media(max-width:620px){.defects{grid-template-columns:repeat(2,1fr)}}
.defect{background:var(--surface);padding:14px 14px 16px}
.defect b{display:block;font-family:var(--cond);font-size:15px;letter-spacing:.06em;color:var(--ink)}
.defect span{font-size:12.5px;color:var(--ink-3);font-family:var(--mono)}
.trace{background:var(--surface);border:1px solid var(--line);padding:20px}
.trace img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;object-position:var(--pos,50% 50%);margin-bottom:16px}
.trace ol{margin:0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:9px;font-size:14px}
.trace li{display:grid;grid-template-columns:22px 1fr;gap:8px;color:var(--ink-2)}
.trace li b{font-family:var(--mono);color:var(--navy);font-weight:600;font-size:13px}
.greenline{display:inline-block;width:26px;height:3px;background:#2E8B57;vertical-align:middle;margin-inline:2px;border-radius:2px}

/* ---------- 貿易方式 ---------- */
.trade{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--navy);
  padding:clamp(24px,3.5vw,38px);display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,40px)}
@media(max-width:780px){.trade{grid-template-columns:1fr}}
.trade ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:10px;color:var(--ink-2);font-size:15px}
.trade ul b{color:var(--ink)}

/* ---------- 聯繫 ---------- */
.contact-sec{background:var(--navy-ink);color:#E6EEFA}
.contact-sec h2{color:#fff}
.contact-sec .eyebrow{color:var(--balsa)}
.people{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:22px}
@media(max-width:620px){.people{grid-template-columns:1fr}}
.person{background:#0D1D35;border:1px solid #1B3050;padding:22px 24px}
.person .role{font-family:var(--cond);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--balsa);margin-bottom:8px}
.person .nm{font-family:var(--cond);font-size:23px;font-weight:700;color:#fff;letter-spacing:.04em}
.person .nm small{font-size:15px;color:#A9C0DE;margin-left:8px;letter-spacing:.1em}
.person dl{margin:14px 0 0;display:grid;grid-template-columns:auto 1fr;gap:7px 14px;font-size:14px}
.person dt{color:#7E97B8;font-family:var(--cond);letter-spacing:.1em;font-size:12px;text-transform:uppercase;padding-top:2px}
.person dd{margin:0;font-family:var(--mono);color:#DCE7F6;word-break:break-all}
.addr{background:#0D1D35;border:1px solid #1B3050;padding:22px 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:700px){.addr{grid-template-columns:1fr}}
.addr dt{font-family:var(--cond);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#7E97B8;margin-bottom:6px}
.addr dd{margin:0;font-size:14.5px;color:#DCE7F6;line-height:1.55}

footer.site{background:#050E1C;color:#6E85A3;font-size:13px;padding-block:28px}
footer.site .wrap{display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;align-items:center}
footer.site .fl{display:flex;align-items:center;gap:10px}
footer.site b{color:#93A9C6;font-family:var(--cond);letter-spacing:.12em;font-weight:600}

/* ---------- 葉片剖面示意圖（原創 SVG） ---------- */
.bladefig{--sk:var(--navy);--cr:var(--balsa);--sp:#0E3160;--web:#2A5C96;--void:var(--surface);
  margin:0;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .bladefig{--sp:#9CC0EC;--web:#5C9BEA}}
:root[data-theme="dark"] .bladefig{--sp:#9CC0EC;--web:#5C9BEA}
.bladefig svg{display:block;width:100%;height:auto;background:var(--surface)}
.bladefig .lead{stroke:var(--line-strong);stroke-width:1;fill:none}
.bladefig .dot{fill:var(--line-strong)}
.bladefig .lb{font-family:var(--sans);font-size:14px;font-weight:600;fill:var(--ink)}
.bladefig .lb-en{font-family:var(--cond);font-size:11px;letter-spacing:.12em;fill:var(--ink-3)}
.bladefig .lb-core{fill:var(--balsa-dim);font-weight:700}
.bladefig .edge{font-family:var(--cond);font-size:11px;letter-spacing:.14em;fill:var(--ink-3)}
.bladefig figcaption{padding:14px 18px;font-size:13.5px;color:var(--ink-2);border-top:1px solid var(--line)}

/* ---------- 關於我們 ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.5vw,32px);margin-top:clamp(32px,4vw,52px)}
@media(max-width:820px){.pillars{grid-template-columns:1fr}}
.pillars article{border-top:3px solid var(--navy);padding-top:18px;display:flex;flex-direction:column;gap:8px}
.pillars .n{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--balsa-dim);font-weight:600}
.pillars h3{font-size:21px}
.pillars p{font-size:14.5px;color:var(--ink-2);line-height:1.7}
.about-close{margin-top:clamp(28px,3.5vw,42px);padding-top:22px;border-top:1px solid var(--line);
  font-size:17px;line-height:1.75;color:var(--ink);max-width:34em;text-wrap:balance}

.about{display:grid;grid-template-columns:1.3fr .7fr;gap:clamp(24px,4vw,56px);align-items:start}
@media(max-width:820px){.about{grid-template-columns:1fr}}
.about > div{display:flex;flex-direction:column;gap:14px}
.about p{color:var(--ink-2);font-size:16px;max-width:62ch}
.about figure{margin:0;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}
.about figure img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;object-position:var(--pos,50% 50%)}
.about figcaption{padding:12px 16px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line)}

/* ---------- 產地佈局表（深色區內） ---------- */
.origins{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(20px,3vw,40px);align-items:start;margin-top:36px}
@media(max-width:820px){.origins{grid-template-columns:1fr}}
.chain-sec .tablewrap{border-color:#1B3050;background:#0D1D35}
.chain-sec table{min-width:360px}
.chain-sec caption{color:#7E97B8;border-bottom-color:#1B3050}
.chain-sec th,.chain-sec td{border-bottom-color:#1B3050}
.chain-sec tbody td{color:#DCE7F6}
.chain-sec tbody tr:nth-child(even){background:rgba(255,255,255,.035)}
.origins p{font-size:14.5px;color:#9BB2D0;line-height:1.75}

:where(a,button,[tabindex]):focus-visible{outline:2px solid var(--balsa);outline-offset:3px}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}