.case-film { scroll-margin-top: 100px; display: grid; grid-template-columns: minmax(220px, 290px) minmax(0, 1fr); grid-template-areas: "player choices" "player followup"; align-items: start; column-gap: 36px; row-gap: 20px; margin: 30px 0 52px; padding: 32px; border: 1px solid #cad8d8; border-radius: 16px; background: #edf2ee; }
.case-film-player { grid-area: player; min-width: 0; margin: 0; align-self: center; }
.case-film video { display: block; width: 100%; height: auto; aspect-ratio: 9/16; background: #0a1929; border-radius: 14px; box-shadow: 0 12px 38px #183c5022; }
.case-film figcaption { margin-top: 10px; color: #617980; font-size: 12px; line-height: 1.8; text-align: center; }
.case-film-copy { grid-area: choices; min-width: 0; }
.case-film-copy h2 { margin: 10px 0 12px; font-size: clamp(24px, 3vw, 34px); line-height: 1.4; color: #244955; }
.case-film-copy > p, .case-film-followup > p { font-size: 14px; line-height: 1.8; color: #536f78; margin: 8px 0; }
.case-film-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 18px; }
.case-film-option { display: flex; flex-direction: column; justify-content: space-between; gap: 6px; padding: 12px; border: 1px solid #bdcfcb; border-radius: 8px; background: #f8fbf7; color: #285568; font-size: 13px; line-height: 1.6; text-decoration: none; }
.case-film-option > small { color: #577b68; font-size: 11px; white-space: nowrap; }
.case-film-option:hover, .case-film-option[aria-pressed="true"] { background: #dbece3; border-color: #47735f; box-shadow: inset 0 0 0 1px #47735f; }
.case-film-option[aria-pressed="true"] > small::after { content: " · 已选"; }
.case-film-full { grid-column: 1 / -1; flex-direction: row; align-items: center; min-height: 44px; padding-block: 9px; }
.case-film-followup { grid-area: followup; min-width: 0; }
.case-film-followup h3 { font-size: 17px; color: #244955; line-height: 1.6; margin: 0 0 8px; }
.case-film-followup .content-button { width: 100%; box-sizing: border-box; text-align: center; line-height: 1.7; }
.case-film-chapter-menu { margin-top: 18px; border-top: 1px solid #cad8d8; }
.case-film-chapter-menu > summary { display: flex; justify-content: space-between; align-items: center; cursor: pointer; min-height: 44px; font-size: 13px; color: #285568; list-style: none; }
.case-film-chapter-menu > summary::-webkit-details-marker { display: none; }
.case-film-chapters { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 8px 0; }
.case-film-chapters button { display: flex; align-items: center; gap: 8px; min-height: 48px; padding: 10px 8px; border: 1px solid #ccd9d5; border-radius: 8px; background: #f8fbf7; color: #285568; text-align: left; font: inherit; font-size: 12px; cursor: pointer; }
.case-film-chapters button:hover, .case-film-chapters button[aria-pressed="true"] { background: #dbece3; border-color: #709985; }
.case-film-chapters time { color: #577b68; font-size: 11px; font-variant-numeric: tabular-nums; }
.case-film :is(a, button, summary):focus-visible { outline: 3px solid #b27b37; outline-offset: 3px; }
.case-film-status { min-height: 22px; font-size: 12px !important; }
.case-film-note { margin-top: 16px !important; font-size: 12px !important; }
.case-film [hidden] { display: none !important; }
@media(max-width:700px) {
  .case-film { grid-template-columns: 1fr; grid-template-areas: "choices" "player" "followup"; gap: 20px; padding: 20px; margin: 22px 0 36px; }
  .case-film-player { width: min(100%, 236px); margin-inline: auto; }
  .case-film-copy h2 { font-size: 25px; }
  .case-film-copy > p { font-size: 13px; }
  .case-film-option { padding: 10px; font-size: 12px; }
  .case-film-full { padding-block: 9px; }
  .case-film-chapters { gap: 7px; }
}

.case-film-screen { position: relative; }
.case-film-play { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 9px; border: 0; border-radius: 14px; background: linear-gradient(transparent 25%, #05182088); color: white; font: inherit; cursor: pointer; text-shadow: 0 1px 4px #051820; }
.case-film-play > span { display: grid; place-items: center; width: 56px; height: 56px; padding-left: 3px; border: 1px solid #ffffffa6; border-radius: 50%; background: #123a36df; font-size: 21px; }
.case-film-play > strong { font-size: 15px; }
.case-film-play > small { font-size: 11px; }
.case-film-play:hover > span { background: #1c5b50; }

.case-film-picker > summary { display: none; }
.case-film-picker-hint { font-size: 12px; color: #456a60; white-space: nowrap; }
.case-film-picker-hint b { display: inline-block; transition: transform .15s ease; }
.case-film-picker[open] .case-film-picker-hint b { transform: rotate(180deg); }
.case-film-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.case-film-actions button { min-height: 44px; border: 1px solid #b6ccc3; border-radius: 7px; padding: 10px 12px; background: #f8fbf7; color: #285568; font: inherit; font-size: 12px; cursor: pointer; }
.case-film-actions button:hover { background: #dbece3; }
.case-film-picker { scroll-margin-top: 85px; }
@media (max-width: 700px) {
  .film-ready .case-film-picker > summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 56px; padding: 8px 10px; border: 1px solid #b6ccc3; border-radius: 8px; background: #f8fbf7; cursor: pointer; list-style: none; }
  .case-film-picker > summary::-webkit-details-marker { display: none; }
  .case-film-picker summary small { display: block; font-size: 10px; color: #617980; margin-bottom: 3px; }
  .case-film-picker summary strong { display: block; font-size: 14px; line-height: 1.5; color: #244955; }
  .film-compact .case-film-copy h2, .film-compact .case-film-copy > p:not(.category-label) { display: none; }
  .film-compact .case-film-copy > .category-label { margin-top: 0; margin-bottom: 10px; font-size: 12px; }
  .film-compact.case-film { gap: 16px; }
  .case-film-picker .case-film-options { margin-top: 8px; }
  .case-film-actions { margin-bottom: 12px; }
}

/* Keep the focused picker visible until the resize handler moves focus. */
.case-film-picker > summary:focus { display: flex; }

.case-film-single { background: #edf3ee; }
.case-film-single .case-film-duration { color: #2b6554; margin-top: 20px; font-weight: 600; }
.case-film-single .case-film-followup > .inline-link { display: inline-block; margin-top: 12px; font-size: 13px; }
@media (max-width: 700px) {
 .case-film-single .case-film-player { width: min(100%, 300px); }
 .case-film-single .case-film-copy h2 { max-width: 16em; }
}