/* Webido CTR — Chinese Article Styles */
:root {
  --navy:   #1B3A5C;
  --blue:   #2E75B6;
  --lblue:  #D5E8F0;
  --gold:   #D4AC0D;
  --dark:   #2C3E50;
  --gray:   #5D6D7E;
}

/* Hero Banner */
.zh-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  color: white;
  padding: 80px 24px;
  text-align: center;
}
.zh-hero__label {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border-radius: 4px;
  padding: 4px 12px;
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.zh-hero__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
}
.zh-hero__meta {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 8px;
}

/* Article Container */
.zh-article {
  font-family: 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
}
.zh-article__container {
  max-width: 780px;
  margin: 60px auto;
  padding: 0 24px;
}
.zh-article h2 {
  color: var(--navy);
  font-size: 1.6rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--lblue);
}
.zh-article h3 {
  color: var(--blue);
  font-size: 1.2rem;
  margin-top: 1.8rem;
  margin-bottom: 0.8rem;
}
.zh-article p {
  line-height: 1.85;
  color: var(--dark);
  font-size: 1.05rem;
  margin-bottom: 1rem;
}
.zh-article ul, .zh-article ol {
  margin: 1rem 0;
  padding-left: 1.5em;
  color: var(--dark);
  line-height: 1.85;
  font-size: 1.05rem;
}
.zh-article li {
  margin-bottom: 0.5rem;
}
.zh-article strong {
  color: var(--navy);
}
.zh-article blockquote {
  border-left: 4px solid var(--blue);
  background: #f8fbfd;
  padding: 16px 24px;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--dark);
}

/* TOC Box */
.zh-toc {
  background: var(--lblue);
  border-left: 4px solid var(--blue);
  padding: 20px 28px;
  margin-bottom: 40px;
  border-radius: 4px;
}
.zh-toc__title {
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  font-size: 1.1rem;
}
.zh-toc ul { list-style: none; padding: 0; }
.zh-toc li { margin-bottom: 8px; }
.zh-toc a { color: var(--blue); text-decoration: none; }
.zh-toc a:hover { text-decoration: underline; }

/* Callout Box */
.zh-callout {
  background: #EBF5FB;
  border: 1px solid var(--lblue);
  border-radius: 6px;
  padding: 20px 24px;
  margin: 24px 0;
}
.zh-callout p {
  margin-bottom: 0.5rem;
}
.zh-callout p:last-child {
  margin-bottom: 0;
}

/* Formula Box */
.zh-formula {
  background: var(--navy);
  color: white;
  padding: 24px 32px;
  border-radius: 6px;
  margin: 24px 0;
  text-align: center;
  font-size: 1.1rem;
  line-height: 1.8;
}
.zh-formula strong {
  color: var(--gold);
}

/* Tables */
.zh-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}
.zh-table th {
  background: var(--navy);
  color: white;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
.zh-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #e0e0e0;
  color: var(--dark);
  line-height: 1.6;
}
.zh-table tr:nth-child(even) td {
  background: #f8fbfd;
}

/* CTA Section */
.zh-cta {
  background: var(--navy);
  color: white;
  padding: 64px 24px;
  text-align: center;
  margin-top: 80px;
}
.zh-cta__title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.zh-cta__sub {
  font-size: 1rem;
  opacity: 0.85;
  margin-bottom: 32px;
}
.zh-cta__features {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.zh-cta__btn {
  display: inline-block;
  background: var(--gold);
  color: #1a1a1a;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 16px 40px;
  border-radius: 4px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.zh-cta__btn:hover { opacity: 0.9; }
.zh-cta__note {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-top: 16px;
}

/* Author Box */
.zh-author {
  background: #f8fbfd;
  border: 1px solid var(--lblue);
  border-radius: 6px;
  padding: 24px 28px;
  margin-top: 3rem;
}
.zh-author__title {
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  font-size: 1.05rem;
}
.zh-author p {
  font-size: 0.95rem;
  line-height: 1.7;
}
.zh-author a {
  color: var(--blue);
}

/* Mobile */
@media (max-width: 640px) {
  .zh-hero { padding: 60px 20px; }
  .zh-article__container { margin: 40px auto; }
  .zh-cta { padding: 48px 20px; }
  .zh-cta__title { font-size: 1.4rem; }
  .zh-table { font-size: 0.85rem; }
  .zh-table th, .zh-table td { padding: 8px 10px; }
}