/* 汽材通 AutosConnect - 樣式(手機優先) */
:root {
  --bg: #f4f6f9; --card: #fff; --ink: #1d2733; --muted: #6a7686; --line: #d9dfe7;
  --pri: #1f5fa8; --pri-ink: #fff; --buy: #b8510d; --sell: #1b7a3a; --warn: #b42318;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Microsoft JhengHei", "PingFang TC", sans-serif; }
a { color: var(--pri); }
.top { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  justify-content: space-between; padding: 10px 16px; background: var(--pri); color: var(--pri-ink); }
.top .brand { color: var(--pri-ink); text-decoration: none; font-weight: 700; font-size: 18px; }
.top small { font-weight: 400; opacity: .8; font-size: 12px; border: 1px solid #fff8; border-radius: 10px; padding: 0 6px; }
/* 英文名稱 AutosConnect(#59):不加外框,與「試營運」標籤區隔;手機太窄時隱藏 */
.top small.en { border: 0; padding: 0; font-size: 13px; letter-spacing: .3px; }
@media (max-width: 380px) { .top small.en { display: none; } }
#nav { display: flex; flex-wrap: wrap; gap: 6px; }
#nav a, #nav button { color: var(--pri-ink); background: #ffffff22; border: 0; border-radius: 6px; padding: 6px 10px;
  text-decoration: none; font: inherit; font-size: 14px; cursor: pointer; }
main { max-width: 880px; margin: 0 auto; padding: 16px; }
h2 { margin: 4px 0 12px; font-size: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 12px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; }
.row > * { flex: 1 1 200px; }
label { display: block; font-size: 14px; color: var(--muted); margin: 8px 0 4px; }
label.req::after { content: " *"; color: var(--warn); }
input, select, textarea { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 6px; font: inherit; background: #fff; }
textarea { min-height: 80px; }
.check { display: flex; align-items: center; gap: 6px; margin-top: 10px; color: var(--ink); }
.check input { width: auto; }
button.btn { background: var(--pri); color: var(--pri-ink); border: 0; border-radius: 6px; padding: 10px 16px; font: inherit; cursor: pointer; }
button.btn.ghost { background: transparent; color: var(--pri); border: 1px solid var(--pri); }
button.btn.small { padding: 5px 10px; font-size: 14px; }
button.btn.danger { background: var(--warn); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.search { display: flex; gap: 8px; margin-bottom: 10px; }
.search input { flex: 1; font-size: 17px; }
.chip { display: inline-block; background: #eaf1fb; color: var(--pri); border-radius: 10px; padding: 1px 8px; margin: 2px 2px 0 0; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.filters select { width: auto; }
.post { display: flex; gap: 12px; }
.post img { width: 96px; height: 96px; object-fit: cover; border-radius: 6px; border: 1px solid var(--line); flex: none; }
.post .body { flex: 1; min-width: 0; }
.tag { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 10px; color: #fff; margin-right: 6px; }
.tag.buy { background: var(--buy); } .tag.sell { background: var(--sell); }
.tag.state { background: var(--muted); }
.title { font-weight: 700; }
.meta { color: var(--muted); font-size: 14px; }
.price { font-weight: 700; color: var(--warn); }
.contact a { margin-right: 10px; }
.ac { position: relative; }
.ac ul { position: absolute; left: 0; right: 0; top: 100%; z-index: 9; list-style: none; margin: 2px 0 0; padding: 0;
  background: #fff; border: 1px solid var(--line); border-radius: 6px; max-height: 240px; overflow: auto; box-shadow: 0 4px 12px #0002; }
.ac li { padding: 7px 10px; cursor: pointer; }
.ac li:hover, .ac li.on { background: #eaf1fb; }
.ac .picked { font-size: 13px; color: var(--sell); margin-top: 3px; }
.hint { font-size: 13px; color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 30px 0; }
#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: #1d2733; color: #fff;
  padding: 10px 16px; border-radius: 8px; max-width: 90vw; z-index: 20; }
#toast.err { background: var(--warn); }
.photo-prev { max-width: 160px; max-height: 160px; display: block; margin-top: 6px; border-radius: 6px; }
@media (max-width: 520px) { .post img { width: 72px; height: 72px; } }
.badge { display: inline-block; min-width: 18px; margin-left: 4px; padding: 0 5px; border-radius: 9px; background: #e5484d; color: #fff; font-size: 12px; text-align: center; }
.card.unread { border-left: 4px solid var(--pri); }
.bindcode { font-size: 32px; font-weight: 700; letter-spacing: 6px; color: var(--pri); margin: 6px 0; }
.actions select { width: auto; min-width: 90px; }
.actions { align-items: center; }
.card.warn { border-color: #f0b429; background: #fff8e6; }