:root {
  --ink: #16130f;
  --ink-soft: #3a342c;
  --paper: #f4efe6;
  --paper-2: #ebe4d6;
  --seal: #c23b22;
  --seal-dark: #9a2c19;
  --gold: #c4a574;
  --bar: #111110;
  --ok: #2c6e49;
  --bad: #9b2335;
  --font-sans: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti TC", "Noto Serif TC", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.65;
}
a { color: var(--seal-dark); }
a:hover { color: var(--seal); }
.sr-only, .skip {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 20;
  background: #fff;
  padding: 8px 12px;
}

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.nav, .foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 7vw;
  flex-wrap: wrap;
}
.nav {
  border-bottom: 1px solid rgba(22, 19, 15, 0.08);
  background: color-mix(in srgb, var(--paper) 88%, white);
  position: sticky;
  top: 0;
  z-index: 5;
}
.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
}
.brand strong { display: block; font-size: 1.05rem; letter-spacing: 0.12em; }
.brand small { color: var(--ink-soft); letter-spacing: 0.18em; text-transform: uppercase; font-size: 0.68rem; }
.mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: var(--seal);
  color: var(--paper);
  font-family: var(--font-serif);
  font-weight: 700;
}
.nav nav, .foot nav { display: flex; gap: 18px; flex-wrap: wrap; }
.nav nav a, .foot nav a { color: var(--ink-soft); text-decoration: none; }
.nav nav a.router-link-active, .nav nav a:hover, .foot nav a:hover { color: var(--ink); }

main { flex: 1; padding: 8px 7vw 64px; }
.hero { padding: 48px 0 24px; max-width: 720px; }
.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--seal-dark);
  margin: 0 0 12px;
}
h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; line-height: 1.25; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 0 0 12px; }
h1 span { display: block; font-size: 0.38em; letter-spacing: 0.28em; text-transform: uppercase; color: var(--ink-soft); margin-top: 8px; }
.tagline { font-size: 1.25rem; margin: 0 0 16px; }
.lead { color: var(--ink-soft); margin: 0 0 28px; }
.hero-actions, .pay-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 16px 0; }

.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  padding: 10px 16px;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.ghost { border-color: rgba(22, 19, 15, 0.25); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn small { font-size: 0.75rem; font-weight: 400; opacity: 0.8; }
.btn.google {
  flex-direction: row;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.caption-demo { margin: 40px 0 0; }
.caption-bar {
  background: var(--bar);
  color: #f4efe6;
  padding: 18px 22px;
  max-width: 520px;
}
.cap-zh { display: block; font-size: 1.35rem; }
.cap-src { display: block; font-size: 0.85rem; opacity: 0.7; margin-top: 6px; }
.caption-demo figcaption { font-size: 0.85rem; color: var(--ink-soft); margin-top: 8px; }

.band { padding: 28px 0 8px; }
.pillars { list-style: none; padding: 0; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.pillars h3 { margin: 0 0 8px; font-size: 1.1rem; }
.pillars p { margin: 0; color: var(--ink-soft); }

.section-head { max-width: 640px; margin-bottom: 28px; }
.pricing { padding: 36px 0; }
.plan-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.plan {
  background: var(--paper-2);
  padding: 22px;
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.plan.featured { background: var(--ink); color: var(--paper); }
.plan.featured .twd, .plan.featured .blurb, .plan.featured .hours { color: rgba(244, 239, 230, 0.78); }
.plan h3 { margin: 0; }
.price { margin: 0; display: flex; align-items: baseline; gap: 8px; }
.price strong { font-size: 1.8rem; font-family: var(--font-serif); }
.badge {
  position: absolute;
  top: 12px;
  right: 12px;
  margin: 0;
  background: var(--seal);
  color: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 3px 8px;
}
.plan .btn { margin-top: auto; }
.plan.featured .btn.primary { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.fine { font-size: 0.88rem; color: var(--ink-soft); }
.anchor { margin-top: 36px; max-width: 680px; }
.anchor ul { padding-left: 1.1rem; }

.faq { padding: 12px 0 48px; max-width: 680px; }
.faq dl { margin: 0; }
.faq dt { font-weight: 650; margin-top: 18px; }
.faq dd { margin: 6px 0 0; color: var(--ink-soft); }

.foot {
  border-top: 1px solid rgba(22, 19, 15, 0.08);
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.legal, .narrow, .account-page { max-width: 720px; padding: 36px 0 48px; }
.legal-body h2, .legal h2 { margin-top: 1.6em; }
.lede { font-size: 1.05rem; color: var(--ink-soft); }

.auth-card, .account-card {
  background: var(--paper-2);
  padding: 24px;
  max-width: 480px;
}
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tabs button {
  border: 0;
  background: transparent;
  padding: 6px 0;
  font: inherit;
  cursor: pointer;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
}
.tabs button.on { color: var(--ink); border-bottom-color: var(--seal); }
.stack { display: grid; gap: 12px; }
.stack label { display: grid; gap: 6px; font-size: 0.9rem; }
.stack input {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid rgba(22, 19, 15, 0.2);
  background: #fff;
}
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stats dt { font-size: 0.78rem; color: var(--ink-soft); }
.stats dd { margin: 0; font-size: 1.15rem; font-family: var(--font-serif); }
.banner { padding: 10px 12px; }
.banner.ok { background: color-mix(in srgb, var(--ok) 16%, white); }
.banner.bad { background: color-mix(in srgb, var(--bad) 16%, white); }

@media (max-width: 640px) {
  .nav, .foot, main { padding-left: 20px; padding-right: 20px; }
  .stats { grid-template-columns: 1fr; }
}