:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --surface-2: #efece4;
  --line: #ddd8cc;
  --text: #1f2a2e;
  --muted: #5f6b70;
  --accent: #0f7b6c;
  --accent-soft: #dcefeb;
  --on-accent: #ffffff;
  --warn: #b5462f;
  --warn-soft: #f8e1da;
  --ok: #2f7d32;
  --radius: 14px;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12171a; --surface: #1a2125; --surface-2: #222b30; --line: #33403f; --text: #eef1ef;
    --muted: #a3afb1; --accent: #3fb9a5; --accent-soft: #1d3a36; --on-accent: #0b1513;
    --warn: #f08a72; --warn-soft: #3b2420; --ok: #7cc47f; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #12171a; --surface: #1a2125; --surface-2: #222b30; --line: #33403f; --text: #eef1ef;
  --muted: #a3afb1; --accent: #3fb9a5; --accent-soft: #1d3a36; --on-accent: #0b1513;
  --warn: #f08a72; --warn-soft: #3b2420; --ok: #7cc47f; color-scheme: dark;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.6; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); }
.wrap { width: min(980px, 100% - 32px); margin-inline: auto; }
.muted { color: var(--muted); }
.hidden { display: none !important; }

/* ---------- landing ---------- */
.hero { padding: 48px 0 32px; }
.brand { font-weight: 700; color: var(--accent); letter-spacing: .04em; }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); line-height: 1.25; margin: 12px 0; }
.hero p { font-size: 1.08rem; color: var(--muted); max-width: 640px; }
.cta { display: inline-block; margin-top: 12px; background: var(--accent); color: var(--on-accent); padding: 14px 26px;
  border-radius: 999px; text-decoration: none; font-weight: 700; border: 0; cursor: pointer; }
.benefits { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 8px 0 32px; }
.benefit { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.benefit h3 { margin: 0 0 6px; font-size: 1.05rem; }
.benefit p { margin: 0; color: var(--muted); font-size: .95rem; }
.steps { counter-reset: step; list-style: none; padding: 0; display: grid; gap: 10px; margin: 0 0 36px; }
.steps li { counter-increment: step; display: flex; gap: 12px; align-items: center; }
.steps li::before { content: counter(step); flex: none; width: 30px; height: 30px; border-radius: 50%; display: grid;
  place-items: center; background: var(--accent-soft); color: var(--accent); font-weight: 700; }

.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 24px; margin-bottom: 48px; }
.form-card h2 { margin-top: 0; }
fieldset { border: 0; padding: 0; margin: 0 0 22px; }
legend, .label { font-weight: 700; margin-bottom: 8px; display: block; padding: 0; }
.req::after { content: " *"; color: var(--warn); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
input[type=text], input[type=tel], input[type=number], input[type=url], select, textarea {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
textarea { min-height: 90px; resize: vertical; }
label.field span { display: block; font-size: .92rem; margin-bottom: 4px; font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span { display: inline-block; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
  background: var(--surface); user-select: none; }
.chip input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.industry { margin-bottom: 12px; }
.industry .sub { font-size: .9rem; color: var(--muted); margin-bottom: 6px; }
.picked { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; min-height: 8px; }
.tag { background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 4px 6px 4px 12px; font-size: .9rem;
  display: inline-flex; align-items: center; gap: 4px; }
.tag button { border: 0; background: none; cursor: pointer; color: inherit; font-size: 1rem; line-height: 1; padding: 0 4px; }
.consent { display: flex; gap: 10px; align-items: flex-start; background: var(--surface-2); padding: 14px; border-radius: 12px; }
.consent input { margin-top: 5px; width: 18px; height: 18px; flex: none; }
.error { color: var(--warn); background: var(--warn-soft); padding: 10px 14px; border-radius: 10px; }
.thanks { text-align: center; padding: 40px 12px; }
.trap { position: absolute; left: -9999px; }
footer { padding: 24px 0 40px; color: var(--muted); font-size: .9rem; }

/* ---------- admin ---------- */
.admin header { padding: 20px 0 6px; display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.admin h1 { font-size: 1.4rem; margin: 0; }
.tabs { display: flex; gap: 6px; overflow-x: auto; padding: 10px 0 16px; }
.tabs button { flex: none; border: 1px solid var(--line); background: var(--surface); padding: 8px 16px; border-radius: 999px; cursor: pointer; }
.tabs button.active { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.panel { display: none; padding-bottom: 48px; }
.panel.active { display: block; }
.box { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; }
.box h2 { margin: 0 0 12px; font-size: 1.1rem; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.row > * { flex: 1 1 160px; }
.row > button { flex: 0 0 auto; }
.btn { border: 1px solid var(--accent); background: var(--accent); color: var(--on-accent); padding: 10px 16px; border-radius: 10px; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.small { padding: 5px 10px; font-size: .88rem; }
.btn.danger { border-color: var(--warn); color: var(--warn); background: transparent; }
.cards { display: grid; gap: 10px; }
.sup { border: 1px solid var(--line); border-radius: 12px; padding: 14px; background: var(--surface); }
.sup .top { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; align-items: baseline; }
.sup .name { font-weight: 700; font-size: 1.05rem; }
.sup .meta { color: var(--muted); font-size: .9rem; }
.sup .actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; align-items: center; }
.sup details { margin-top: 8px; font-size: .92rem; }
.badge { display: inline-block; font-size: .8rem; padding: 2px 10px; border-radius: 999px; background: var(--surface-2); }
.badge.fit0 { background: var(--accent); color: var(--on-accent); }
.badge.fit1 { background: var(--accent-soft); color: var(--accent); }
.badge.status-合作中 { color: var(--ok); }
.badge.status-停用 { color: var(--warn); }
.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { border-bottom: 1px solid var(--line); padding: 8px; text-align: left; white-space: nowrap; }
td.num { text-align: center; }
td.zero { background: var(--warn-soft); color: var(--warn); font-weight: 700; }
td.low { color: var(--warn); }
pre.post { white-space: pre-wrap; background: var(--surface-2); padding: 14px; border-radius: 10px; font-family: inherit; }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
  padding: 10px 18px; border-radius: 999px; opacity: 0; transition: opacity .2s; pointer-events: none; }
.toast.show { opacity: 1; }

.more { margin: 8px 0 16px; }
.more summary { cursor: pointer; color: #555; padding: 6px 0; }
.more .field { margin-top: 10px; display: block; }