:root {
  color-scheme: dark;
  --bg: #080c09;
  --panel: #101713;
  --line: rgba(226, 238, 228, 0.17);
  --text: #f0f5ef;
  --muted: #a9b5aa;
  --accent: #8cff66;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 84% 8%, rgba(82, 211, 95, 0.12), transparent 31rem),
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 52px 52px, 52px 52px, auto;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang HK", "Noto Sans TC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.privacy-header {
  min-height: 76px;
  padding: 0 clamp(22px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.09em;
  text-decoration: none;
}

.brand-logo {
  position: relative;
  width: 60px;
  height: 31px;
  flex: 0 0 auto;
  overflow: hidden;
  background: #153f46;
  border: 1px solid rgba(140, 255, 102, 0.32);
  border-radius: 2px;
}

.brand-logo img {
  position: absolute;
  top: 0;
  left: -16px;
  width: auto;
  max-width: none;
  height: 100%;
}

.back-link {
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.back-link:hover {
  color: var(--accent);
}

main {
  width: min(1040px, calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(64px, 10vw, 128px) 0 72px;
}

.eyebrow,
.updated {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  max-width: 850px;
  margin: 18px 0 28px;
  font-size: clamp(3rem, 7.8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.07em;
}

.lead {
  max-width: 700px;
  margin: 0 0 clamp(64px, 10vw, 108px);
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.8;
}

section {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 24px;
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

section > span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  font-weight: 700;
}

h2 {
  margin: -7px 0 12px;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  letter-spacing: -0.035em;
}

section p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}

.english-note {
  margin-top: 36px;
}

.contact-panel {
  margin-top: 70px;
  padding: clamp(24px, 5vw, 42px);
  border: 1px solid rgba(140, 255, 102, 0.42);
  background: linear-gradient(135deg, rgba(140, 255, 102, 0.1), rgba(140, 255, 102, 0.02));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.contact-panel p {
  margin: 0 0 8px;
  color: var(--muted);
}

.contact-panel strong {
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.contact-panel a {
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #071008;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.updated {
  margin-top: 28px;
  color: #738077;
  letter-spacing: 0.06em;
  text-transform: none;
}

@media (max-width: 620px) {
  .privacy-header {
    min-height: 66px;
  }

  .brand-logo {
    width: 54px;
    height: 28px;
  }

  .brand-logo img {
    left: -14px;
  }

  .brand-name {
    display: none;
  }

  main {
    width: min(100% - 32px, 1040px);
    padding-top: 52px;
  }

  h1 {
    font-size: clamp(2.7rem, 15vw, 4.8rem);
  }

  section {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
  }

  .contact-panel {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}