*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --guide-ink: #162033;
  --guide-muted: #5d6b82;
  --guide-line: #dbe3ee;
  --guide-soft: #f6f8fb;
  --guide-blue: #2457b8;
  --guide-teal: #0f766e;
  --guide-gold: #b6852e;
  --guide-navy: #101f43;
  --guide-white: #fff;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans TC", sans-serif;
  color: var(--guide-ink);
  background: var(--guide-white);
  line-height: 1.72;
}

a {
  color: inherit;
}

.guide-container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.guide-hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  padding: 148px 0 82px;
  overflow: hidden;
  color: #fff;
  background: var(--guide-navy);
}

.guide-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(9, 17, 39, .94) 0%, rgba(9, 17, 39, .76) 43%, rgba(9, 17, 39, .22) 100%),
    var(--guide-hero-image, none) center / cover no-repeat;
}

.guide-hero .guide-container {
  position: relative;
  z-index: 1;
}

.guide-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
}

.guide-breadcrumb a {
  text-decoration: none;
}

.guide-eyebrow {
  margin: 0 0 12px;
  color: #b7e4dd;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.guide-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

.guide-hero .guide-lead {
  max-width: 760px;
  margin: 22px 0 0;
  color: rgba(255,255,255,.86);
  font-size: 18px;
}

.guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.guide-btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  padding: 10px 18px;
  font-weight: 800;
  text-decoration: none;
}

.guide-btn.primary {
  background: #fff;
  color: var(--guide-navy);
}

.guide-btn.secondary {
  border: 1px solid rgba(255,255,255,.46);
  color: #fff;
}

.guide-section {
  padding: 74px 0;
  border-bottom: 1px solid var(--guide-line);
}

.guide-section.soft {
  background: var(--guide-soft);
}

.guide-section h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.22;
  letter-spacing: 0;
}

.guide-section-lead {
  max-width: 820px;
  margin: 0 0 34px;
  color: var(--guide-muted);
  font-size: 17px;
}

.answer-panel {
  border-left: 5px solid var(--guide-teal);
  border-radius: 8px;
  padding: 24px 26px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(16, 31, 67, .08);
}

.answer-panel p {
  margin: 0;
  color: var(--guide-ink);
  font-size: 19px;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.guide-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.guide-card {
  border: 1px solid var(--guide-line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
}

.guide-card h3 {
  margin: 0;
  font-size: 21px;
  line-height: 1.35;
  letter-spacing: 0;
}

.guide-card p {
  margin: 10px 0 0;
  color: var(--guide-muted);
}

.guide-card ul,
.guide-checklist {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--guide-muted);
}

.guide-card li + li,
.guide-checklist li + li {
  margin-top: 6px;
}

.guide-kicker {
  margin: 0 0 8px;
  color: var(--guide-teal);
  font-size: 13px;
  font-weight: 800;
}

.guide-steps {
  display: grid;
  gap: 12px;
  counter-reset: guide-step;
}

.guide-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: start;
  border: 1px solid var(--guide-line);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
}

.guide-step::before {
  counter-increment: guide-step;
  content: counter(guide-step);
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--guide-navy);
  color: #fff;
  font-weight: 800;
}

.guide-step h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: 0;
}

.guide-step p {
  margin: 6px 0 0;
  color: var(--guide-muted);
}

.guide-table {
  overflow: hidden;
  border: 1px solid var(--guide-line);
  border-radius: 8px;
  background: #fff;
}

.guide-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--guide-line);
}

.guide-row:last-child {
  border-bottom: none;
}

.guide-row b {
  color: var(--guide-blue);
}

.guide-row span {
  color: var(--guide-muted);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--guide-line);
  border-radius: 8px;
  background: #fff;
  padding: 18px 20px;
}

.faq-item summary {
  cursor: pointer;
  color: var(--guide-ink);
  font-weight: 800;
}

.faq-item .ans {
  margin-top: 10px;
  color: var(--guide-muted);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.related-card {
  border: 1px solid var(--guide-line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
  text-decoration: none;
}

.related-card strong {
  display: block;
  color: var(--guide-ink);
  font-size: 19px;
}

.related-card span {
  display: block;
  margin-top: 8px;
  color: var(--guide-muted);
}

.guide-cta {
  background: var(--guide-navy);
  color: #fff;
  padding: 72px 0;
}

.guide-cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
}

.guide-cta h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.22;
  letter-spacing: 0;
}

.guide-cta p {
  margin: 10px 0 0;
  color: rgba(255,255,255,.76);
}

@media (max-width: 900px) {
  .guide-hero {
    min-height: 560px;
    padding: 128px 0 62px;
  }

  .guide-grid,
  .guide-grid.two,
  .related-list,
  .guide-cta-inner {
    grid-template-columns: 1fr;
  }

  .guide-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (max-width: 640px) {
  .guide-container {
    width: min(100% - 28px, 1120px);
  }

  .guide-hero {
    min-height: 540px;
  }

  .guide-section {
    padding: 56px 0;
  }

  .guide-step {
    grid-template-columns: 1fr;
  }

  .answer-panel {
    padding: 20px;
  }

  .answer-panel p {
    font-size: 17px;
  }
}