.dm-prep-detail .dm-preparation-detail-hero { margin-top: 34px; align-items: center; }
.dm-prep-detail .dm-preparation-detail-hero > div { max-width: 760px; }
.dm-prep-detail .dm-preparation-detail-hero h1 { max-width: 780px; line-height: 1.12; }
.dm-prep-detail .dm-preparation-guide-card { background: #ecf6f2; border: 1px solid #d9eee5; border-radius: 18px; padding: 30px; }
.dm-prep-detail .dm-preparation-guide-card h2 { font-size: 23px; }
.dm-prep-related-jump { display: inline-flex; align-items: center; gap: 9px; font-size: 15px; text-decoration: none; }
.dm-prep-related-jump .dm-icon { width: 19px; height: 19px; }
.dm-prep-related-jump > span { display: inline-grid; place-items: center; min-width: 26px; height: 26px; padding: 0 6px; color: var(--dm-action); background: #e2f2eb; border-radius: 50%; font-size: 13px; font-weight: 600; }
.dm-prep-related-jump .dm-icon:last-child { margin-left: 4px; }
.dm-prep-reading-grid { display: grid; grid-template-columns: 218px minmax(0, 1fr); gap: clamp(32px, 5vw, 74px); align-items: start; margin-top: 72px; }
.dm-prep-reading-aside { position: sticky; top: 28px; min-width: 0; }
.dm-prep-reading-nav { display: grid; gap: 3px; border-left: 1px solid var(--dm-border); padding: 2px 0; }
.dm-prep-reading-nav strong { display: block; padding: 0 0 15px 18px; color: var(--dm-ink); font-size: 14px; line-height: 1.4; }
.dm-prep-reading-nav a { display: block; margin-left: -1px; padding: 10px 16px; border-left: 2px solid transparent; color: var(--dm-muted); text-decoration: none; font-size: 14px; line-height: 1.4; }
.dm-prep-reading-nav a:hover, .dm-prep-reading-nav a:focus-visible { border-left-color: var(--dm-action); color: var(--dm-action); background: #f4f9f6; }
.dm-prep-detail .dm-instruction-copy { max-width: none; min-width: 0; }
.dm-prep-article-heading { display: flex; gap: 15px; align-items: center; margin-bottom: 26px; }
.dm-prep-article-heading > .dm-icon { width: 42px; height: 42px; padding: 10px; color: var(--dm-action); background: #e5f4ed; border-radius: 12px; }
.dm-prep-article-heading h2 { margin: 0; font-size: clamp(28px, 2.8vw, 36px); }
.dm-prep-intro { max-width: 780px; padding: 24px 30px; border-left: 3px solid var(--dm-action); background: #f5faf7; border-radius: 0 12px 12px 0; color: #4f6073; }
.dm-prep-intro p + p { margin-top: 12px; }
.dm-prep-intro strong { color: var(--dm-ink); }
.dm-prep-reading-section { margin-top: 60px; scroll-margin-top: 28px; }
.dm-prep-section-heading { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 22px; }
.dm-prep-section-heading > span { display: grid; place-items: center; flex: none; width: 44px; height: 44px; background: #e6f3ec; border-radius: 13px; color: var(--dm-action); font-size: 15px; font-weight: 700; line-height: 1; }
.dm-prep-detail .dm-prep-section-heading h3 { max-width: 720px; padding-top: 2px; font-size: clamp(23px, 2.3vw, 30px); line-height: 1.25; }
.dm-prep-section-content { max-width: none; font-size: 16px; line-height: 1.65; }
.dm-prep-section-content > p { max-width: 780px; }
.dm-prep-section-content > ul { list-style: none; padding: 0; margin: 20px 0 0; }
.dm-prep-reading-section--list .dm-prep-section-content > ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; counter-reset: prep-rule; }
.dm-prep-reading-section--list .dm-prep-section-content > ul > li { position: relative; counter-increment: prep-rule; min-width: 0; margin: 0; padding: 22px 22px 22px 55px; border: 1px solid #e2ece7; border-radius: 13px; background: #f8fbf9; color: #53637b; }
.dm-prep-reading-section--list .dm-prep-section-content > ul > li::before { content: counter(prep-rule, decimal-leading-zero); position: absolute; top: 23px; left: 19px; color: var(--dm-action); font-size: 13px; font-weight: 700; }
.dm-prep-section-content li strong, .dm-prep-section-content p strong { color: var(--dm-ink); font-weight: 600; }
.dm-prep-reading-section--details .dm-prep-section-content { border-top: 1px solid var(--dm-border); }
.dm-prep-reading-section--details .dm-prep-section-content > p { display: block; padding: 20px 0; margin: 0; border-bottom: 1px solid var(--dm-border); color: #53637b; }
.dm-prep-reading-section--details .dm-prep-section-content > p strong { display: block; margin-bottom: 7px; font-size: 17px; line-height: 1.4; }
.dm-prep-reading-section--list .dm-prep-section-content > p { margin: 0 0 18px; }
.dm-prep-reading-section--list .dm-prep-section-content > p strong { color: var(--dm-ink); }
.dm-prep-detail .dm-instruction-warning { margin-top: 42px; }
.dm-prep-detail #instruction-tests { margin-top: 78px; scroll-margin-top: 28px; }
.dm-prep-detail .dm-program-composition { columns: 2; column-gap: 38px; }
.dm-prep-detail .dm-program-composition li { break-inside: avoid; }
.dm-prep-detail .dm-instruction-photo { grid-column: 2; width: 100%; max-width: 420px; }
@media (max-width: 1000px) {
  .dm-prep-reading-grid { grid-template-columns: 180px minmax(0, 1fr); gap: 28px; }
  .dm-prep-reading-section--list .dm-prep-section-content > ul { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 800px) {
  .dm-prep-detail .dm-preparation-detail-hero { margin-top: 26px; }
  .dm-prep-detail .dm-preparation-guide-card { max-width: none; }
  .dm-prep-reading-grid { display: block; margin-top: 46px; }
  .dm-prep-reading-aside { position: static; margin-bottom: 35px; }
  .dm-prep-reading-nav { display: flex; gap: 8px; overflow-x: auto; border: 0; padding-bottom: 10px; scrollbar-width: thin; }
  .dm-prep-reading-nav strong { display: none; }
  .dm-prep-reading-nav a { flex: none; max-width: 240px; margin: 0; padding: 9px 13px; border: 1px solid var(--dm-border); border-radius: 8px; line-height: 1.35; }
  .dm-prep-reading-nav a:hover, .dm-prep-reading-nav a:focus-visible { border-color: var(--dm-action); }
  .dm-prep-article-heading > .dm-icon { width: 38px; height: 38px; }
  .dm-prep-intro { padding: 19px 21px; }
  .dm-prep-reading-section { margin-top: 45px; }
  .dm-prep-detail .dm-program-composition { columns: 1; }
}
@media (max-width: 540px) {
  .dm-prep-detail .dm-preparation-guide-card { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 1px 13px; padding: 18px; }
  .dm-prep-detail .dm-preparation-guide-card > .dm-icon { grid-row: span 2; width: 25px; height: 25px; margin: 1px 0 0; }
  .dm-prep-detail .dm-preparation-guide-card h2 { font-size: 17px; }
  .dm-prep-detail .dm-preparation-guide-card p { margin-top: 4px; font-size: 14px; line-height: 1.45; }
  .dm-prep-detail .dm-preparation-guide-card .dm-button { grid-column: 2; margin-top: 13px; }
  .dm-prep-section-heading { gap: 13px; }
  .dm-prep-section-heading > span { width: 38px; height: 38px; border-radius: 10px; }
  .dm-prep-reading-section--list .dm-prep-section-content > ul > li { padding: 18px 18px 18px 48px; }
  .dm-prep-reading-section--list .dm-prep-section-content > ul > li::before { top: 19px; left: 17px; }
}