/* =========================================================================
   Asia Pallet Pool Ltd — pallets.com.tw
   Hand-written, framework-free. Theme: "Blueprint Grid".
   A dark navy masthead + footer anchor a calm blueprint-grid canvas, with
   ruled spec cards and a dark contact titleblock. One sans stack (CJK +
   Latin). Trilingual. Zero JavaScript. Main nav wraps (never scrolls/clips).
   ========================================================================= */

:root {
  /* Colours — cool blue-grey "blueprint" canvas; 20-year navy primary.
     Red reserved for NEW/SALE tags only. */
  --c-bg:            #EAEEF2;   /* blueprint paper */
  --c-surface:       #FFFFFF;   /* ruled cards */
  --c-panel:         #DCE3EA;   /* technical panel fill */
  --c-border:        #B4C0CC;   /* keyline */
  --c-border-strong: #5E7184;   /* strong grid rule */
  --c-ink:           #15212E;   /* blueprint near-black */
  --c-ink-soft:      #33424F;
  --c-muted:         #465A6B;   /* WCAG AA on --c-bg and --c-panel */
  --c-link:          #000080;   /* 20-year brand anchor */
  --c-link-hover:    #0A1F8A;
  --c-link-visited:  #4A4A8A;
  --c-accent:        #C0392B;   /* 特惠 / NEW tag ONLY */
  --c-success:       #2E7D32;

  /* Dark anchors — masthead, nav, contact titleblock, footer */
  --c-anchor:        #15212E;
  --c-anchor-2:      #1C2C3C;
  --c-anchor-rule:   #2E4456;

  /* Type — ONE reliable system stack for CJK + Latin. No artificial spacing. */
  --f-sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC",
             "Microsoft JhengHei", "Noto Sans TC", "Noto Sans SC", Arial, sans-serif;
  --f-mono:  ui-monospace, "SF Mono", "Menlo", "Courier New", monospace;
  --f-brand: "Century Gothic", "Avenir Next", "URW Gothic L", var(--f-sans);

  /* Type scale — mobile first. Restrained sizes: TW buyers distrust big display type. */
  --fs-xs:  12px;
  --fs-sm:  13px;
  --fs-base:15px;
  --fs-md:  16px;
  --fs-lg:  18px;
  --fs-xl:  22px;
  --fs-xxl: 26px;

  /* Rhythm */
  --lh-cjk:    1.7;     /* body copy */
  --lh-ui:     1.45;    /* tables, panels, labels, nav */
  --lh-latin:  1.55;
  --lh-tight:  1.25;    /* headings */

  --sp-0: 0;
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;

  --max-w:  1100px;
  --gutter: 20px;      /* page side margin; widened on desktop below */
  --radius: 2px;
}

@media (min-width: 768px) {
  :root {
    --fs-base:16px;
    --fs-md:  17px;
    --fs-lg:  19px;
    --fs-xl:  24px;
    --fs-xxl: 28px;
    --gutter: 40px;
  }
}

/* ---------- Reset-lite ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-cjk);
  letter-spacing: 0;
  line-break: strict;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
:lang(en) { line-height: var(--lh-latin); }
img { max-width: 100%; height: auto; display: block; }
a {
  color: var(--c-link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
a:visited { color: var(--c-link-visited); }
a:hover   { color: var(--c-link-hover); }
a[href^="mailto:"], code { overflow-wrap: anywhere; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--f-sans);
  font-weight: 700;
  color: var(--c-ink);
  line-height: var(--lh-tight);
  letter-spacing: 0;
  margin: var(--sp-5) 0 var(--sp-3);
}
h1 { font-size: var(--fs-xxl); }
h2 { font-size: var(--fs-xl);  }
h3 { font-size: var(--fs-lg);  }
h4 { font-size: var(--fs-md);  }
p  { margin: 0 0 var(--sp-4); }
small, .small { font-size: var(--fs-sm); color: var(--c-ink-soft); }
.lead { font-size: var(--fs-md); color: var(--c-ink-soft); margin-bottom: var(--sp-5); }
.muted { color: var(--c-ink-soft); }
:is(.spec-table, .stat-strip dd, .contact-line__phone, .mono-tnum) {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- Layout primitives ---------- */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter); }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: var(--sp-5); }
@media (min-width: 900px) {
  .grid-2 { grid-template-columns: 2fr 1fr; gap: var(--sp-6); }
  .grid-2--even { grid-template-columns: 1fr 1fr; }
}

/* ---------- Skip link (keyboard-only users) ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--c-ink); color: #fff;
  padding: 10px 14px; font-size: var(--fs-sm); z-index: 100;
}
.skip-link:focus { left: var(--sp-3); top: var(--sp-3); }

/* ---------- Masthead: dark navy header + nav read as ONE anchor ---------- */
.site-header {
  background: var(--c-anchor);
  position: sticky; top: 0; z-index: 10;
}
.site-header__inner { max-width: var(--max-w); margin: 0 auto; }
.site-header__top {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
  padding: 14px var(--gutter);
}
.site-header__brand { display: grid; gap: 2px; text-decoration: none; }
.site-header__brand b { font-size: var(--fs-lg); font-weight: 700; letter-spacing: 0.01em; color: #FFFFFF; }
.site-header__brand span { font-size: var(--fs-xs); color: #9DB1C2; }
.site-header__brand:hover b { color: #CBD8E6; }
.site-header__tools { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; flex-shrink: 0; }
.site-header__lang { display: flex; gap: 2px; font-size: var(--fs-sm); }
.site-header__reps { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.site-header__rep {
  display: inline-flex; align-items: baseline; gap: 8px;
  text-decoration: none; color: #CBD8E6; font-size: var(--fs-sm);
  white-space: nowrap; line-height: 1.3; font-variant-numeric: tabular-nums;
}
.site-header__rep-role { color: #9DB1C2; font-size: var(--fs-xs); }
.site-header__rep b { color: #FFFFFF; font-weight: 700; }
.site-header__rep:hover { color: #FFFFFF; }
.site-header__rep:hover b { text-decoration: underline; }
.site-header__lang a, .site-header__lang-off { padding: 2px 6px; text-decoration: none; color: #CBD8E6; }
.site-header__lang a[aria-current="true"] { color: #FFFFFF; font-weight: 700; }
.site-header__lang-off { color: #7388A0; cursor: default; }
.site-header__cta {
  display: inline-flex; align-items: center; min-height: 40px;
  padding: 0 var(--sp-3); background: #FFFFFF; color: var(--c-anchor);
  text-decoration: none; white-space: nowrap; font-weight: 700;
  font-variant-numeric: tabular-nums;
  border: 1px solid var(--c-anchor); box-shadow: 2px 2px 0 var(--c-link);
}
.site-header__cta:hover { background: var(--c-bg); color: var(--c-anchor); }
@media (max-width: 767px) {
  .site-header { position: static; }
  .site-header__top { flex-wrap: wrap; gap: var(--sp-2); }
  .site-header__tools { width: 100%; align-items: flex-start; }
}

/* ---------- Nav (wraps at all widths; never scrolls or clips) ---------- */
.site-nav {
  background: var(--c-anchor-2);
  border-bottom: 1px solid var(--c-anchor-rule);
  box-shadow: inset 0 1px 0 var(--c-anchor-rule);
}
.site-nav__inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter);
  display: flex; flex-wrap: wrap; gap: 0 22px;
  font-size: var(--fs-sm); line-height: var(--lh-ui);
}
.site-nav__inner a {
  text-decoration: none; color: #CBD8E6;
  padding: 10px var(--sp-1); min-height: 44px;
  display: inline-flex; align-items: center;
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.site-nav__inner a:hover { color: #FFFFFF; border-bottom-color: #7388A0; }
.site-nav__inner a[aria-current="page"] { color: #FFFFFF; border-bottom-color: #FFFFFF; font-weight: 700; }
@media (max-width: 767px) {
  .site-nav__inner { gap: 0 var(--sp-4); }
  .site-nav__inner a { padding: 10px var(--sp-3); }
}

/* ---------- Hero — titleblock framed on the blueprint ---------- */
.hero {
  border: 1px solid var(--c-border-strong); border-left: 4px solid var(--c-link);
  background: rgba(255, 255, 255, .80);
  padding: 24px 20px 18px; margin: 0 0 32px;
}
.hero h1 { margin: 0 0 var(--sp-3); color: var(--c-ink); }
.hero__sub { font-size: var(--fs-md); color: var(--c-ink-soft); max-width: 40em; margin: 0 0 var(--sp-3); }
.hero__meta { font-size: var(--fs-sm); color: var(--c-muted); display: flex; flex-wrap: wrap; gap: var(--sp-1) var(--sp-3); }
.hero__meta span { position: relative; }
.hero__meta span + span::before { content: "·"; margin-right: var(--sp-3); color: var(--c-border-strong); }

/* ---------- Blueprint canvas — faint grid behind main content ---------- */
main.wrap {
  background-color: var(--c-bg);
  background-image:
    linear-gradient(to right, rgba(94, 113, 132, .10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(94, 113, 132, .10) 1px, transparent 1px);
  background-size: 32px 32px; background-position: -1px -1px;
  padding-top: 32px; padding-bottom: 48px;
}
@media (max-width: 767px) { main.wrap { background-size: 24px 24px; } }

/* ---------- Spec stat-strip ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: 0 0 32px;
  padding: 0;
  background: var(--c-border-strong);
  border: 1px solid var(--c-border-strong);
}
@media (min-width: 640px) { .stat-strip { grid-template-columns: repeat(4, 1fr); } }
.stat-strip > div { background: var(--c-surface); padding: 14px 16px; margin: 0; }
.stat-strip dt {
  font-size: var(--fs-xs); color: var(--c-muted);
  text-transform: uppercase; letter-spacing: .04em; margin: 0 0 2px; line-height: var(--lh-ui);
}
.stat-strip dd {
  margin: 0; font-size: var(--fs-lg); font-weight: 700; color: var(--c-link);
  white-space: nowrap; line-height: 1.2; font-variant-numeric: tabular-nums;
}

/* ---------- Product category list (ruled spec cards) ---------- */
.cat-list { display: grid; grid-template-columns: 1fr; gap: var(--sp-3); padding: 0; list-style: none; margin: 0; }
@media (min-width: 640px) { .cat-list { grid-template-columns: 1fr 1fr; } }
.cat-list li {
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
  position: relative;
  box-shadow: 3px 3px 0 rgba(94, 113, 132, .18);
  transition: box-shadow .12s, border-color .12s, transform .12s;
}
.cat-list li:hover {
  background: var(--c-surface); border-color: var(--c-link);
  box-shadow: 3px 3px 0 var(--c-link); transform: translate(-1px, -1px);
}
.cat-list h3 { margin: 0; font-size: var(--fs-md); font-weight: 700; line-height: 1.3; }
.cat-list h3 a {
  text-decoration: none; color: var(--c-link);
  display: block; padding: var(--sp-3) var(--sp-5) var(--sp-1) var(--sp-4);
  min-height: 44px;
}
.cat-list h3 a::after {
  content: "→"; position: absolute; right: var(--sp-3); top: var(--sp-3);
  color: var(--c-border-strong); font-weight: 400;
}
.cat-list li:hover h3 a::after { color: var(--c-link); }
.cat-list h3 a:hover { text-decoration: underline; }
.cat-list p { margin: 0; padding: 0 var(--sp-4) var(--sp-3); font-size: var(--fs-sm); color: var(--c-ink-soft); }
.tag {
  display: inline-block; font-size: var(--fs-xs);
  background: var(--c-accent); color: #fff; padding: 1px 6px;
  margin-left: var(--sp-2); vertical-align: middle;
  font-family: var(--f-brand); letter-spacing: 0.04em;
}

/* ---------- Spec table ---------- */
.spec-table-wrap {
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  margin: var(--sp-4) 0; border: 1px solid var(--c-border-strong);
}
.spec-table-wrap .spec-table { margin: 0; border: 0; min-width: 460px; }
.spec-table {
  width: 100%; border-collapse: collapse;
  font-size: var(--fs-sm); line-height: var(--lh-ui);
  margin: var(--sp-4) 0; background: var(--c-surface);
  font-variant-numeric: tabular-nums;
}
.spec-table caption {
  caption-side: top; text-align: left; font-weight: 700;
  padding: var(--sp-2) 0; color: var(--c-ink-soft); font-size: var(--fs-sm);
}
.spec-table th, .spec-table td {
  border: 1px solid var(--c-border-strong);
  padding: var(--sp-2) var(--sp-3);
  text-align: left; vertical-align: top;
}
.spec-table th { background: var(--c-panel); font-weight: 700; color: var(--c-ink); }
.spec-table tbody tr:nth-child(even) td { background: #F2F5F8; }

/* ---------- Photo figure / grid ---------- */
figure { margin: 0 0 var(--sp-4); }
figure img { border: 1px solid var(--c-border-strong); background: var(--c-panel); }
figcaption { font-size: var(--fs-xs); color: var(--c-muted); padding: var(--sp-1) 0 0; line-height: var(--lh-ui); }
.photo-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3); margin: var(--sp-4) 0;
}
@media (min-width: 640px)  { .photo-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .photo-grid { grid-template-columns: repeat(4, 1fr); } }
.photo-grid figure { margin: 0; }
.photo-grid figure img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; }

/* ---------- Sidebar ---------- */
.sidebar { display: flex; flex-direction: column; gap: var(--sp-4); }
.sidebar .panel { background: var(--c-panel); border: 1px solid var(--c-border-strong); padding: var(--sp-4); }
.sidebar .panel h3 { margin: 0 0 var(--sp-3); font-size: var(--fs-md); font-weight: 700; }
.sidebar .panel ul { list-style: none; padding: 0; margin: 0; }
.sidebar .panel li { margin: 0; padding: var(--sp-1) 0; }

/* ---------- Contact lines (aligned label | name | phone grid) ---------- */
.panel__intro { margin: 0 0 var(--sp-3); color: var(--c-ink-soft); font-size: var(--fs-sm); line-height: var(--lh-ui); }
.contact-lines, .contact-channels { margin: 0; display: grid; gap: 0; }
.contact-line,
.contact-channels > div {
  display: grid;
  grid-template-columns: 4.5em minmax(0, 1fr);
  column-gap: var(--sp-3);
  align-items: baseline;
  padding: var(--sp-2) 0;
  border-top: 1px solid var(--c-border);
}
.contact-line:first-child { border-top: 0; }
.contact-line dt,
.contact-channels dt {
  margin: 0; color: var(--c-muted);
  font-size: var(--fs-xs); font-weight: 700;
  line-height: var(--lh-ui); letter-spacing: 0;
}
.contact-line dd,
.contact-channels dd { margin: 0; min-width: 0; line-height: var(--lh-ui); }
.contact-line__link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: var(--sp-3); align-items: center;
  min-height: 40px; text-decoration: none;
}
.contact-line__name { color: var(--c-ink); min-width: 0; }
.contact-line__phone {
  color: var(--c-link); font-weight: 700; white-space: nowrap;
  font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1;
}
.contact-line__link:hover .contact-line__phone { text-decoration: underline; }
.contact-channels {
  margin-top: var(--sp-2); padding-top: var(--sp-2);
  border-top: 1px solid var(--c-border-strong);
}
.contact-channels dt { align-self: center; }
.contact-channels a, .contact-channels code { overflow-wrap: anywhere; }
@media (max-width: 390px) {
  .contact-line, .contact-channels > div { grid-template-columns: 3.5em minmax(0, 1fr); column-gap: var(--sp-2); }
  .contact-line__link { grid-template-columns: 1fr; gap: 0; align-items: start; min-height: 0; padding: 4px 0; }
}

/* ---------- Contact block (page foot) — dark ruled titleblock anchor ---------- */
.contact-block {
  background: var(--c-anchor-2); color: #D6E0EA;
  border-top: 4px solid var(--c-link);
  padding: 48px 0; margin-top: 0;
}
.contact-block h2 { margin-top: 0; color: #FFFFFF; }
.contact-grid { display: grid; grid-template-columns: 1fr; gap: var(--sp-5); }
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-grid dl { margin: 0; }
.contact-grid dt { font-size: var(--fs-xs); color: var(--c-muted); letter-spacing: 0; margin-top: var(--sp-2); }
.contact-grid dd { margin: 0 0 var(--sp-1); font-size: var(--fs-sm); }
.contact-grid dd a { font-variant-numeric: tabular-nums; }

.contact-people { display: grid; grid-template-columns: 1fr; gap: var(--sp-3); margin-top: var(--sp-4); }
@media (min-width: 640px) { .contact-people { grid-template-columns: 1fr 1fr; } }
.contact-person {
  display: grid; grid-template-columns: 4.5em minmax(0, 1fr); column-gap: var(--sp-3); align-items: baseline;
  padding: var(--sp-3); border: 1px solid var(--c-border); background: var(--c-panel);
}
.contact-person__role { margin: 0; color: var(--c-muted); font-size: var(--fs-xs); font-weight: 700; line-height: var(--lh-ui); }
.contact-person__body { min-width: 0; }
.contact-person__name { display: block; font-size: var(--fs-md); font-weight: 700; line-height: 1.3; }
.contact-person a { font-weight: 700; font-variant-numeric: tabular-nums; }

/* dark theme overrides scoped to the contact block */
.contact-block dt { color: #A9BDCE; }
.contact-block dd { color: #E3EAF1; }
.contact-block a { color: #CFE0F2; }
.contact-block a:hover { color: #FFFFFF; }
.contact-block .contact-line { border-top-color: var(--c-anchor-rule); }
.contact-block .contact-line__name { color: #E3EAF1; }
.contact-block .contact-line__phone { color: #FFFFFF; }
.contact-block .contact-channels { border-top-color: #3A5468; }
.contact-block .contact-person { background: var(--c-anchor); border: 1px solid var(--c-anchor-rule); }
.contact-block .contact-person__role { color: #A9BDCE; }
.contact-block .contact-person__name { color: #FFFFFF; }
.contact-block .contact-person a { color: #CFE0F2; }
.contact-block .line-block { background: var(--c-anchor); border: 1px solid var(--c-anchor-rule); }
.contact-block .line-block__text { color: #D6E0EA; }
.contact-block .line-block__text a { color: #CFE0F2; }

/* ---------- LINE block ---------- */
.line-block { display: flex; gap: var(--sp-4); align-items: center; border: 1px solid var(--c-border); background: var(--c-panel); padding: var(--sp-3); }
.line-block img.qr { width: 96px; height: 96px; flex-shrink: 0; }
.line-block__text { font-size: var(--fs-sm); line-height: var(--lh-ui); }
.line-block__text b { font-family: var(--f-brand); }

/* ---------- Footer — continuous dark anchor ---------- */
.site-footer {
  background: var(--c-anchor); color: #A9BDCE;
  font-size: var(--fs-sm); line-height: var(--lh-ui);
  padding: 40px 0 var(--sp-5); margin-top: 0;
}
.site-footer a { color: #CFE0F2; }
.site-footer a:hover { color: #FFFFFF; }
.site-footer__cols {
  max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter);
  display: grid; grid-template-columns: 1fr; gap: var(--sp-5);
}
@media (min-width: 768px) { .site-footer__cols { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer__col h4 {
  margin: 0 0 var(--sp-2); color: #FFFFFF; font-size: var(--fs-xs);
  font-weight: 700; letter-spacing: 0;
}
.site-footer__col p { margin: 0 0 var(--sp-2); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 4px; }
.site-footer__bottom {
  max-width: var(--max-w); margin: var(--sp-5) auto 0;
  padding: var(--sp-3) var(--gutter) 0;
  border-top: 1px solid var(--c-anchor-rule); font-size: var(--fs-xs); color: #8AA0B2;
  font-variant-numeric: tabular-nums;
}

/* ---------- Utility ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.no-underline { text-decoration: none; }

/* ---------- Print ---------- */
@media print {
  .trust-bar, .site-nav, .skip-link { display: none; }
  .site-header { position: static; border-bottom: 1px solid #000; }
  body { background: #fff; color: #000; }
  a { color: #000; }
  .site-footer { background: #fff; color: #000; margin-top: var(--sp-5); }
  .site-footer a, .site-footer__col h4, .site-footer__bottom { color: #000; }
  .site-footer__bottom { border-top-color: #000; }
}