:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-soft: #eef4ff;
  --text: #0f172a;
  --muted: #475569;
  --line: #dbe4f0;
  --primary: #0f172a;
  --primary-strong: #0b1533;
  --link: #1d4ed8;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 22px;
  --radius-sm: 14px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Text",
    "PingFang TC",
    "Noto Sans TC",
    "Microsoft JhengHei",
    sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(243, 246, 251, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.15;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.brand span {
  margin-top: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav a {
  color: var(--text);
  font-weight: 700;
  opacity: 0.88;
}

.nav a[aria-current="page"] {
  opacity: 1;
}

.section {
  padding: 42px 0;
}

.hero-section {
  padding-top: 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  align-items: center;
}

.hero-copy,
.hero-visual,
.card,
.note-box,
.reading {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 36px;
}

.hero-visual {
  padding: 26px;
  display: flex;
  justify-content: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: #dfeafe;
  color: #24459a;
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.2;
}

h1,
h2,
h3 {
  margin: 0 0 14px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 4rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 900;
}

h3 {
  font-size: 1.15rem;
  font-weight: 800;
}

.lead {
  font-size: 1.18rem;
  color: var(--muted);
  margin: 0 0 22px;
}

.muted,
.updated {
  color: var(--muted);
  font-size: 1rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 22px 0 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 1rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.18);
}

.button-primary:hover {
  background: var(--primary-strong);
}

.button-secondary {
  background: #fff;
  color: var(--text);
  border-color: var(--line);
}

.phone-card {
  width: min(100%, 380px);
  min-height: 460px;
  padding: 26px 26px 26px 26px;
  background: #fff;
  border-radius: 34px;
  border: 12px solid #0c1738;
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.14);
}

.phone-card p {
  margin-top: 0;
  margin-bottom: 14px;
}

.phone-card ul {
  margin: 14px 0 0 22px;
  padding: 0;
}

.card-grid {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.card-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: 24px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.note-box {
  padding: 22px 24px;
  background: var(--surface-soft);
  border-color: #bfd5ff;
}

.note-box p {
  margin: 0;
  color: #214289;
  font-weight: 700;
}

.reading {
  padding: 34px;
  max-width: 900px;
}

.reading p,
.reading ul {
  font-size: 1.05rem;
}

.reading p {
  margin: 0 0 18px;
}

.reading ul {
  margin: 0 0 22px 24px;
  padding: 0;
}

.reading li + li {
  margin-top: 8px;
}

.reading h2 {
  margin-top: 32px;
  margin-bottom: 12px;
  font-size: clamp(1.45rem, 2vw, 2rem);
}

.reading h3 {
  margin-top: 24px;
  margin-bottom: 10px;
  font-size: 1.18rem;
}

.site-footer {
  padding: 18px 0 28px;
  border-top: 1px solid var(--line);
  margin-top: 24px;
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-wrap p {
  margin: 0;
  color: var(--muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-nav a {
  font-weight: 700;
}

@media (max-width: 980px) {
  .hero-grid,
  .card-grid-3 {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-visual,
  .reading,
  .card {
    padding: 24px;
  }

  .phone-card {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .nav-wrap,
  .footer-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav,
  .footer-nav {
    gap: 14px;
    flex-wrap: wrap;
  }

  .container {
    width: min(var(--max), calc(100% - 22px));
  }

  .section {
    padding: 28px 0;
  }

  .hero-copy,
  .hero-visual,
  .reading,
  .card,
  .note-box {
    border-radius: 18px;
  }

  .button {
    width: 100%;
  }

  .button-row {
    align-items: stretch;
  }

  .reading {
    padding: 22px;
  }

  .reading p,
  .reading ul {
    font-size: 1rem;
  }
}