/* 合作准备与问答分栏呈现，手机依阅读顺序排列。 */
.service-preparation { width: calc(100% - 144px); max-width: 1296px; padding: 64px 0; }
.service-preparation .preparation-eyebrow { display: flex; align-items: center; gap: 18px; margin: 0 0 24px; color: #bd2d2d; font-size: 16px; line-height: 1.6; }
.service-preparation .preparation-eyebrow::before { content: ""; width: 38px; height: 1px; background: #bd2d2d; flex-shrink: 0; }
.service-preparation > h2 { font-size: 52px; line-height: 1.35; }
.service-preparation .preparation-layout { display: grid; grid-template-columns: 1fr 1.08fr; align-items: start; gap: 96px; margin-top: 44px; }
.service-preparation .preparation-items { margin: 0; padding: 32px 0 0; list-style: none; }
.service-preparation .preparation-item { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 30px; }
.service-preparation .preparation-item + .preparation-item { margin-top: 40px; }
.service-preparation .preparation-number { color: #bd2d2d; font-size: 30px; line-height: 1.4; }
.service-preparation .preparation-item h3 { margin: 0 0 14px; font-size: 28px; line-height: 1.4; }
.service-preparation .preparation-item p { max-width: 440px; margin: 0; color: #6c6961; font-size: 21px; line-height: 1.9; }
.service-preparation .questions-heading { margin: 0 0 20px; color: #6c6961; font-size: 21px; line-height: 1.5; font-weight: 400; }
.service-preparation .question-list { border-top: 1px solid #dedbd3; }
.service-preparation .question-item { border-bottom: 1px solid #dedbd3; }
.service-preparation .question-heading { margin: 0; font-weight: 700; }
.service-preparation .question-toggle { display: flex; align-items: start; justify-content: space-between; gap: 20px; width: 100%; padding: 24px 0; border: 0; background: transparent; color: #242422; font-size: 26px; line-height: 1.5; text-align: left; }
.service-preparation .question-toggle:hover { color: #bd2d2d; }
.service-preparation .question-toggle:focus-visible { outline-offset: 4px; }
.service-preparation .question-indicator { flex-shrink: 0; color: #bd2d2d; font-size: 28px; line-height: 1.4; }
.service-preparation .question-answer { display: grid; grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows .22s ease, opacity .18s ease; }
.service-preparation .question-item.is-open .question-answer { grid-template-rows: 1fr; opacity: 1; }
.service-preparation .question-answer-inner { min-height: 0; overflow: hidden; }
.service-preparation .question-answer-inner p { margin: 0; padding: 0 36px 26px 0; color: #6c6961; font-size: 21px; line-height: 1.9; }
@media (max-width: 1280px) { .service-preparation .preparation-layout { gap: 64px; } }
@media (max-width: 1150px) {
  .service-preparation { width: calc(100% - 88px); }
  .service-preparation > h2 { font-size: 46px; }
  .service-preparation .preparation-layout { gap: 56px; }
  .service-preparation .preparation-item { grid-template-columns: 44px minmax(0, 1fr); gap: 24px; }
  .service-preparation .preparation-item h3 { font-size: 26px; }
  .service-preparation .preparation-item p, .service-preparation .question-answer-inner p { font-size: 19px; }
  .service-preparation .question-toggle { font-size: 23px; }
}
@media (max-width: 980px) {
  .service-preparation { width: calc(100% - 64px); }
  .service-preparation > h2 { font-size: 42px; }
  .service-preparation .preparation-layout { grid-template-columns: 1fr; gap: 48px; }
  .service-preparation .preparation-items { padding-top: 0; }
  .service-preparation .preparation-item p { max-width: none; }
}
@media (max-width: 700px) {
  .service-preparation { width: calc(100% - 44px); padding: 44px 0 48px; }
  .service-preparation .preparation-eyebrow { gap: 14px; margin-bottom: 18px; font-size: 14px; }
  .service-preparation .preparation-eyebrow::before { width: 30px; }
  .service-preparation > h2 { font-size: 34px; }
  .service-preparation .preparation-layout { gap: 36px; margin-top: 32px; }
  .service-preparation .preparation-item { grid-template-columns: 36px minmax(0, 1fr); gap: 18px; }
  .service-preparation .preparation-item + .preparation-item { margin-top: 30px; }
  .service-preparation .preparation-number { font-size: 24px; }
  .service-preparation .preparation-item h3 { margin-bottom: 12px; font-size: 24px; }
  .service-preparation .preparation-item p, .service-preparation .question-answer-inner p { font-size: 17px; }
  .service-preparation .questions-heading { font-size: 19px; }
  .service-preparation .question-toggle { gap: 16px; padding: 20px 0; font-size: 20px; }
  .service-preparation .question-indicator { font-size: 24px; }
  .service-preparation .question-answer-inner p { padding-right: 28px; padding-bottom: 22px; }
}
@media (prefers-reduced-motion: reduce) { .service-preparation .question-answer { transition: none; } }