/* 字幕模板页 */
.sbt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 22px 18px; }
.sbt-card { cursor: pointer; }
.sbt-thumb { position: relative; border-radius: 14px; overflow: hidden; box-shadow: 0 2px 10px rgba(20, 32, 70, .08); transition: transform .15s, box-shadow .15s; }
.sbt-card:hover .sbt-thumb { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(20, 32, 70, .18); }
.sbt-card.chosen .sbt-thumb { outline: 3px solid var(--brand); outline-offset: 2px; }
.sbt-use {
  position: absolute; left: 12px; right: 12px; bottom: 12px; height: 42px; border-radius: 10px;
  display: grid; place-items: center; background: rgba(24, 28, 40, .88); color: #fff; font-weight: 600;
  opacity: 0; transform: translateY(6px); transition: all .15s;
}
.sbt-card:hover .sbt-use { opacity: 1; transform: none; }
.sbt-badge { position: absolute; left: 10px; top: 10px; font-style: normal; font-size: 12px; padding: 2px 10px; border-radius: 99px; background: var(--brand); color: #fff; }
.sbt-meta { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-top: 10px; }
.sbt-meta b { font-size: 14.5px; }
.sbt-meta span { font-size: 12px; color: var(--mute); white-space: nowrap; }
.sbt-desc { margin: 2px 0 0; font-size: 12.5px; color: var(--mute); line-height: 1.5; }

/* 9:16 预览框：里面放 1080×1920 的画布，按 --s 缩放 */
.sbt-frame { position: relative; aspect-ratio: 9 / 16; overflow: hidden; background: #1c1f26 center / cover no-repeat; }
.sbt-stage { position: absolute; left: 0; top: 0; width: 1080px; height: 1920px; transform-origin: 0 0; transform: scale(var(--s, .2)); pointer-events: none; }
.sbt-stage .st { display: inline-grid; }
.sbt-stage .st > span { grid-area: 1 / 1; white-space: nowrap; }

/* 放大编辑 */
.sbt-edit { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 24px; align-items: start; }
.sbt-edit-pv .sbt-frame { border-radius: 14px; }
.sbt-edit-form { display: flex; flex-direction: column; gap: 16px; }
.sbt-bgsel { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--sub); white-space: nowrap; }
.sbt-bgsel .select { width: auto; min-width: 220px; }
.sbt-bgpick { display: flex; gap: 8px; flex-wrap: wrap; }
.sbt-bgpick button { width: 46px; height: 82px; border-radius: 8px; background-size: cover; background-position: center; border: 2px solid transparent; box-shadow: 0 0 0 1px var(--line); }
.sbt-bgpick button.on { border-color: var(--brand); box-shadow: 0 0 0 2px var(--brand-soft); }
.sbt-tip { display: flex; align-items: center; gap: 6px; margin: 0; font-size: 12.5px; color: var(--mute); }
.sbt-tip .ic { width: 14px; height: 14px; }

@media (max-width: 860px) {
  .sbt-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 12px; }
  .sbt-use { opacity: 1; transform: none; height: 34px; font-size: 13px; }
  .sbt-edit { grid-template-columns: 1fr; }
  .sbt-edit-pv { max-width: 300px; margin: 0 auto; width: 100%; }
}