:root {
  --color-text: #1a1a1a;
  --color-text-light: #555555;
  --color-accent: #1d5f8a;
  --color-accent-dark: #123f5c;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fb;
  --color-border: #dfe5ea;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  line-height: 1.7;
  background: var(--color-bg);
}

.article-wrapper {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--color-text-light);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

header.article-header {
  margin-bottom: 36px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 28px;
}

h1 {
  font-family: var(--font-serif);
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0 0 16px;
  color: var(--color-text);
  font-weight: 700;
}

.article-meta {
  font-size: 14px;
  color: var(--color-text-light);
}

.lede {
  font-size: 1.15rem;
  color: var(--color-text-light);
  margin-top: 18px;
  line-height: 1.6;
}

article h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin: 44px 0 18px;
  color: var(--color-text);
  border-left: 3px solid var(--color-accent);
  padding-left: 14px;
}

article h3 {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  margin: 26px 0 10px;
  color: var(--color-accent-dark);
}

article p {
  margin: 0 0 18px;
  font-size: 1.02rem;
  color: var(--color-text);
}

article strong {
  color: var(--color-text);
}

article ul,
article ol {
  margin: 0 0 20px;
  padding-left: 22px;
}

article ul li,
article ol li {
  margin-bottom: 8px;
  font-size: 1.02rem;
}

article a {
  color: var(--color-accent);
  text-decoration: underline;
}

article a:hover {
  color: var(--color-accent-dark);
}

hr.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 40px 0;
}

.answer-box {
  border: 1px solid var(--color-border);
  border-radius: 7px;
  padding: 20px 22px;
  margin: 24px 0 30px;
  background: #ffffff;
}

.answer-box .answer-title {
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 8px;
}

.answer-box p {
  margin: 0;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 28px;
  font-size: 0.88rem;
}

.compare-table th,
.compare-table td {
  border: 1px solid var(--color-border);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}

.compare-table th {
  background: var(--color-bg-alt);
  font-weight: 700;
}

.compare-table tr:nth-child(even) {
  background: #fbfcfd;
}

.checklist-box {
  border: 1px solid var(--color-border);
  border-radius: 7px;
  padding: 18px 20px;
  margin: 20px 0 24px;
  background: var(--color-bg-alt);
}

.checklist-heading {
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 8px;
  font-size: 0.98rem;
}

.checklist-box ul {
  margin: 0;
  padding-left: 20px;
}

.checklist-box ul li {
  font-size: 0.94rem;
  margin-bottom: 6px;
}

.checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 20px 0 28px;
}

.product-box {
  border-left: 3px solid var(--color-accent);
  padding: 18px 20px;
  margin: 26px 0;
  background: var(--color-bg-alt);
}

.product-box .product-name {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-accent-dark);
  margin-bottom: 12px;
}

.product-box p {
  margin: 0 0 10px;
  font-size: 0.97rem;
}

.product-box p:last-child {
  margin: 0;
}

.flow-box {
  text-align: center;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 10px;
  margin: 24px 0 28px;
  font-weight: 700;
  color: var(--color-accent-dark);
  font-size: 0.94rem;
}

.cta-box {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 26px 26px;
  margin: 40px 0;
  background: #ffffff;
}

.cta-box h3 {
  margin-top: 0;
  color: var(--color-text);
  font-size: 1.25rem;
}

.cta-box p {
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.cta-button {
  display: inline-block;
  background: var(--color-accent-dark);
  color: #ffffff;
  text-decoration: none;
  padding: 11px 24px;
  border-radius: 5px;
  font-weight: 700;
  font-size: 0.95rem;
}

.cta-button:hover {
  background: var(--color-accent);
  color: #ffffff;
}

.inline-cta {
  font-style: italic;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  margin-top: 36px;
}

.inline-cta a {
  font-style: normal;
  font-weight: 600;
}

.faq-list {
  margin-top: 8px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 4px;
  font-weight: 700;
  font-size: 1.02rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--color-accent-dark);
}

.faq-icon::before {
  width: 10px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 10px;
  transition: transform 0.2s ease;
}

details[open] > summary .faq-icon::after {
  transform: scaleY(0);
}

.faq-answer-wrap {
  padding: 0 4px 20px;
}

.faq-answer {
  color: var(--color-text-light);
  font-size: 0.98rem;
  margin: 0;
}

.related-articles {
  margin-top: 50px;
  padding-top: 10px;
}

.related-articles h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  border-left: 3px solid var(--color-accent);
  padding-left: 14px;
  margin: 0 0 16px;
}

.related-articles ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-articles li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0;
}

.related-articles li:last-child {
  border-bottom: none;
}

.related-articles a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.98rem;
}

.related-articles a:hover {
  color: var(--color-accent);
}

.related-articles a::before {
  content: "→ ";
  color: var(--color-accent);
}

footer.article-footer {
  margin-top: 50px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-light);
}

@media (max-width: 600px) {

  .article-wrapper {
    padding: 32px 16px 60px;
  }

  h1 {
    font-size: 1.4rem;
  }

  article h2 {
    font-size: 1.15rem;
  }

  .compare-table {
    font-size: 0.72rem;
  }

  .compare-table th,
  .compare-table td {
    padding: 6px 5px;
  }

  .checklist-grid {
    grid-template-columns: 1fr;
  }
}