.guide-hub, .guide-article { padding-bottom: 40px; }
.guide-hub h1, .guide-article h1 { font-family: Georgia, "Noto Serif TC", "Songti TC", serif; font-size: clamp(34px, 4.4vw, 60px); font-weight: 500; letter-spacing: -.035em; line-height: 1.2; text-wrap: balance; margin: 20px 0; }
.guide-hub-hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; padding: 64px 0 56px; border-bottom: 1px solid var(--line); }
.guide-lead { color: var(--muted); max-width: 620px; line-height: 1.9; font-size: 17px; }
.guide-hub-hero aside { border-left: 1px solid var(--line); padding-left: 36px; align-self: center; }
.guide-volume { font-family: Georgia, serif; font-size: 28px; color: var(--teal); }
.guide-hub-hero aside p { font-size: 14px; line-height: 1.9; }
.guide-hub-hero small { color: var(--muted); display: block; font-size: 12px; }
.guide-topic-nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px 26px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.guide-topic-nav a { display: flex; gap: 12px; align-items: baseline; font-size: 13px; text-decoration: none; }
.guide-topic-nav span { color: var(--teal); font-family: Georgia, serif; }
.guide-topic-nav a:hover, .guide-topic a:hover { color: var(--teal); }
.guide-directory { display: grid; grid-template-columns: 1fr 1fr; }
.guide-topic { padding: 38px 38px 34px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 24px; }
.guide-topic:nth-child(even) { padding-left: 38px; padding-right: 0; border-left: 1px solid var(--line); }
.guide-topic-heading { display: flex; align-items: baseline; gap: 16px; }
.guide-topic-number { font-family: Georgia, serif; font-size: 26px; color: var(--teal); }
.guide-topic h2 { font-size: 23px; margin: 0; font-weight: 600; }
.guide-topic h2 a { text-decoration: none; }
.guide-topic > p { color: var(--muted); font-size: 14px; margin: 14px 0 22px; }
.guide-topic ul { padding-left: 18px; margin: 0 0 24px; }
.guide-topic li { padding: 5px 0; font-size: 14px; }
.guide-topic li::marker { color: #a0b7ae; }
.guide-topic li a { text-underline-offset: 5px; text-decoration-color: var(--line); }
.guide-read { display: inline-flex; align-items: center; gap: 20px; color: var(--teal); font-size: 13px; font-weight: 600; text-decoration: none; border-bottom: 1px solid #0f766e55; padding-bottom: 6px; }
.guide-breadcrumb { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; font-size: 12px; color: var(--muted); }
.guide-article-hero { padding: 40px 0; border-bottom: 1px solid var(--line); }
.guide-article-layout { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 64px; padding-top: 40px; }
.guide-contents { position: sticky; top: 28px; align-self: start; display: grid; gap: 16px; }
.guide-contents p { color: var(--muted); font-size: 12px; margin: 0 0 6px; }
.guide-contents a { font-size: 13px; text-decoration: none; line-height: 1.8; }
.guide-contents a:hover { color: var(--teal); }
.guide-answers section { padding: 0 0 36px; margin-bottom: 34px; border-bottom: 1px solid var(--line); scroll-margin-top: 28px; }
.guide-answer-number { color: var(--teal); font-family: Georgia, serif; font-size: 16px; }
.guide-answers h2 { font-size: 23px; line-height: 1.5; margin: 10px 0 16px; text-wrap: balance; }
.guide-answers section p { line-height: 2; max-width: 760px; margin: 0; }
.guide-status { font-size: 12px; color: var(--muted); }
.guide-related { padding: 24px; background: #e8ece3; margin-top: 28px; }
.guide-related h2 { font-size: 16px; margin: 0 0 14px; }
.guide-related a { display: inline-block; margin: 5px 20px 5px 0; color: var(--teal); font-size: 14px; text-underline-offset: 4px; }
.guide-footer { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 18px 28px; font-size: 12px; color: var(--muted); }
@media (max-width: 900px) { .guide-hub-hero { gap: 36px; } .guide-article-layout { grid-template-columns: 210px minmax(0, 1fr); gap: 32px; } }
@media (max-width: 760px) {
  .guide-hub-hero { grid-template-columns: 1fr; gap: 24px; padding: 36px 0; }
  .guide-hub-hero aside { padding: 22px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .guide-topic-nav { grid-template-columns: 1fr 1fr; gap: 16px; }
  .guide-directory, .guide-article-layout { grid-template-columns: 1fr; }
  .guide-topic, .guide-topic:nth-child(even) { padding: 28px 0; border-left: 0; }
  .guide-contents { position: static; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
  .guide-article-hero { padding: 28px 0; }
  .guide-answers h2 { font-size: 21px; }
}