/* 頻道.台灣 MVP — font1 字級系統（base 17px）*/
:root {
  --gold: #8A7340; --gold-deep: #6B5A3E; --ink: #2B2620; --muted: #7A7264;
  --bg: #FFFDF8; --card: #FFFFFF; --line: #E8E0D0; --accent-bg: #F5EFE2;
  --ok: #3E7C4F; --danger: #B4442C;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; }
body {
  font-family: "Noto Sans TC", "Microsoft JhengHei", -apple-system, sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
h1 { font-size: 1.65rem; font-weight: 700; line-height: 1.4; }
h2 { font-size: 1.3rem; font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 700; }
small, .muted { font-size: 0.82rem; color: var(--muted); }
a { color: var(--gold-deep); }

.wrap { max-width: 620px; margin: 0 auto; padding: 1.2rem; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 1.1rem 1.2rem; margin-bottom: 1rem;
}
.btn {
  display: inline-block; width: 100%; text-align: center; cursor: pointer;
  background: var(--gold); color: #fff; border: 0; border-radius: 12px;
  font-size: 1.05rem; font-weight: 700; padding: 0.85rem 1rem;
  font-family: inherit;
}
.btn:active { opacity: 0.85; }
.btn.secondary { background: var(--accent-bg); color: var(--gold-deep); }
.btn.small { width: auto; font-size: 0.88rem; padding: 0.45rem 0.9rem; border-radius: 9px; }
input, textarea {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; padding: 0.7rem 0.8rem;
  background: #fff; margin-bottom: 0.7rem;
}
input:focus, textarea:focus { outline: 2px solid var(--gold); border-color: var(--gold); }
label { display: block; font-size: 0.88rem; color: var(--muted); margin-bottom: 0.25rem; }

.points-bar {
  background: var(--accent-bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 0.7rem 1rem; margin-bottom: 1rem; font-size: 0.94rem;
}
.chips { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }
.chip {
  border: 1px solid var(--gold); color: var(--gold-deep); background: #fff;
  border-radius: 999px; padding: 0.3rem 0.85rem; font-size: 0.88rem; cursor: pointer;
  font-family: inherit;
}
.msg-row { margin-bottom: 0.6rem; display: flex; }
.msg-row.customer { justify-content: flex-end; }
.bubble {
  max-width: 78%; padding: 0.55rem 0.85rem; border-radius: 14px; font-size: 0.95rem;
  border: 1px solid var(--line); background: #fff;
}
.msg-row.customer .bubble { background: var(--accent-bg); border-color: var(--gold); }
.msg-row.merchant .bubble { background: #fff; }

.tabs { display: flex; gap: 0.4rem; margin-bottom: 1rem; }
.tab {
  flex: 1; text-align: center; padding: 0.55rem 0; border-radius: 10px; cursor: pointer;
  background: var(--accent-bg); color: var(--muted); font-size: 0.94rem; font-weight: 700;
  border: 0; font-family: inherit; position: relative;
}
.tab.active { background: var(--gold); color: #fff; }
.tab .dot {
  position: absolute; top: 4px; right: 10px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--danger);
}
.overlay {
  position: fixed; inset: 0; background: rgba(43,38,32,0.72); z-index: 50;
  display: flex; align-items: flex-end; justify-content: center;
}
.overlay .sheet {
  background: var(--bg); border-radius: 18px 18px 0 0; padding: 1.4rem 1.3rem 2rem;
  max-width: 620px; width: 100%;
}
.step { display: flex; gap: 0.7rem; align-items: flex-start; margin-bottom: 0.8rem; }
.step b {
  flex: 0 0 1.7rem; height: 1.7rem; border-radius: 50%; background: var(--gold);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 0.9rem;
}
.hero { text-align: center; padding: 2.2rem 0 1.4rem; }
.hero .logo { font-size: 2rem; font-weight: 900; color: var(--gold-deep); }
.hero .slogan { color: var(--muted); margin-top: 0.4rem; }
.stat-grid { display: flex; gap: 0.7rem; }
.stat { flex: 1; text-align: center; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 0.8rem 0.4rem; }
.stat .num { font-size: 1.5rem; font-weight: 900; color: var(--gold-deep); }
.err { color: var(--danger); font-size: 0.88rem; margin-bottom: 0.6rem; }
.ok-text { color: var(--ok); font-size: 0.88rem; }
.list-item { padding: 0.8rem 0.2rem; border-bottom: 1px solid var(--line); cursor: pointer; }
.list-item:last-child { border-bottom: 0; }
.hidden { display: none !important; }