:root {
  /* AXON 標準色 */
  --black: #101820;   /* Pantone Black 6C */
  --lime:  #CEDF00;   /* Pantone 389C */
  --gray:  #9FA2A3;   /* Pantone 422C（裝飾用，文字對比不足） */
  /* 介面用色 */
  --paper: #FFFFFF;
  --ink: var(--black);
  --mute: #6E7273;    /* 加深的 422C，用於次要文字 */
  --line: #E2E3E3;
  --moss: var(--black); /* 互動強調（hover、focus） */
  --serif: "Noto Serif TC", "Noto Serif CJK TC", "Songti TC", "PMingLiU", serif;
  --sans: "Noto Sans TC", "Noto Sans CJK TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: .04em;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--moss); outline-offset: 3px; }

/* Top banner：黑色橫幅（呼應名片正面） */
.banner {
  position: sticky; top: 0; z-index: 20;
  background: var(--black); color: #fff;
  display: flex; align-items: center; gap: 40px;
  padding: 0 56px; height: 76px;
}
.banner .home { display: flex; align-items: center; margin-right: auto; }
.banner .logo { height: 30px; width: auto; }
.banner .home-text { font-size: 22px; letter-spacing: .1em; }
.topbar { display: flex; gap: 2.2em; font-size: 14px; }
.topbar a { color: #C9CBCC; padding: 4px 0; border-bottom: 2px solid transparent; }
.topbar a:hover { color: #fff; }
.topbar a[aria-current="page"] { color: #fff; border-color: var(--lime); }
.dots { display: grid; grid-template-columns: repeat(3, 7px); gap: 3px; }
.dots i { width: 7px; height: 7px; border-radius: 50%; display: block; }
.dots .l { background: var(--lime); } .dots .g { background: var(--gray); } .dots .w { background: #fff; }
.banner a:focus-visible { outline-color: var(--lime); }

main { padding: 72px 56px 96px; min-height: 70vh; max-width: 1440px; margin: 0 auto; }

.hero { margin-bottom: 96px; max-width: 40em; }
.hero h1 { font-family: var(--serif); font-weight: 400; font-size: 44px; line-height: 1.4; letter-spacing: .12em; }
.hero-en { margin-top: 10px; font-size: 15px; letter-spacing: .14em; color: var(--mute); }
.hero-en::before { content: ""; display: inline-block; width: 28px; height: 10px; border-radius: 999px; background: var(--lime); margin-right: 12px; vertical-align: 0; }
.hero-sub { margin-top: 28px; font-size: 16px; max-width: 30em; }
.page-title { font-family: var(--serif); font-size: 26px; font-weight: 400; margin-bottom: 40px; letter-spacing: .12em; }

/* Category filter: 中文 + English */
.filter { display: flex; flex-wrap: wrap; gap: .7em 1em; margin: 0 -14px 56px; font-size: 14px; }
.en { font-size: .82em; letter-spacing: .08em; margin-left: .3em; }
.filter .en, .meta .en { color: var(--mute); }
.filter button[aria-pressed="true"] .en { color: inherit; }
.meta dd a:hover { color: var(--moss); }
.filter button {
  background: none; border: 0; font: inherit; color: var(--mute); cursor: pointer; letter-spacing: inherit;
  padding: 5px 14px; border-radius: 999px;
}
.filter button:hover { color: var(--ink); background: #F1F2F2; }
.filter button[aria-pressed="true"]:hover { background: var(--lime); }
.filter button[aria-pressed="true"] { color: var(--ink); background: var(--lime); }

/* Works grid: uneven heights, like a pinned wall */
.grid { columns: 3 280px; column-gap: 40px; }
.card { break-inside: avoid; margin-bottom: 56px; display: block; }
.card img { width: 100%; background: var(--line); transition: opacity .3s; }
.card:hover img { opacity: .85; }
.card:hover .ttl { box-shadow: inset 0 -6px 0 var(--lime); }
.card .cat { margin-top: 14px; font-size: 12px; color: var(--mute); }
.card .ttl { font-family: var(--serif); font-size: 16px; font-weight: 400; line-height: 1.6; }
.more { display: inline-block; margin-top: 8px; font-size: 14px; border-bottom: 1px solid var(--ink); }

/* Single work */
.work-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 56px; margin-bottom: 64px; }
.work-head h1 { font-family: var(--serif); font-size: 28px; font-weight: 400; line-height: 1.5; }
.meta { display: grid; grid-template-columns: auto 1fr; gap: 4px 20px; margin-top: 28px; font-size: 13px; }
.meta dt { color: var(--mute); }
.work-desc { max-width: 34em; font-size: 15px; }
.work-images { display: grid; gap: 32px; }
.pager { display: flex; justify-content: space-between; gap: 24px; margin-top: 72px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 14px; }
.pager a:hover { color: var(--moss); }

/* Services / about / contact */
.list { max-width: 44em; }
.list > div { display: grid; grid-template-columns: 9em 1fr; gap: 24px; padding: 28px 0; border-top: 1px solid var(--line); }
.list h2 { font-family: var(--serif); font-size: 18px; font-weight: 400; }
.prose { max-width: 34em; font-size: 16px; }
.prose p + p { margin-top: 1.2em; }

footer {
  padding: 32px 56px 48px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  font-size: 12px; color: var(--mute);
}
footer nav { display: flex; gap: 1.6em; }
footer a:hover { color: var(--ink); }

.line-btn {
  position: fixed; right: 24px; bottom: 24px; z-index: 10;
  background: var(--lime); color: var(--ink); font-size: 13px; font-weight: 400;
  padding: 10px 18px; border-radius: 999px;
}
.line-btn:hover { background: var(--ink); color: var(--lime); }

.notice { color: var(--mute); }

@media (max-width: 760px) {
  .banner { height: 60px; padding: 0 20px; gap: 18px; }
  .banner .logo { height: 22px; }
  .topbar { gap: 1.2em; font-size: 13px; }
  .dots { display: none; }
  main { padding: 40px 20px 72px; }
  .hero { margin-bottom: 56px; }
  .hero h1 { font-size: 28px; letter-spacing: .08em; }
  .hero-sub { font-size: 15px; }
  .grid { column-gap: 0; }
  .work-head { grid-template-columns: 1fr; gap: 24px; }
  .list > div { grid-template-columns: 1fr; gap: 6px; }
  footer { padding: 24px 20px 80px; }
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }