/* 方案3：折叠清单。只作用于已完成原表单重排的筹备阶段。 */
/* clip 保留卡片裁切，同时避免 hidden 创建滚动容器而截断吸底保存栏。 */
body.tp-preparation-active .management-shell .workspace-card { overflow: clip; }
body.tp-preparation-active .workspace-shell.tp-preparation-shell {
  grid-template-columns: minmax(0, 1fr) !important;
  column-gap: 0;
}
body.tp-preparation-active .tp-preparation-shell > .tf-checklist,
body.tp-preparation-active .tp-preparation-shell > .tf-task-title,
body.tp-preparation-active .tp-preparation-shell .basic-section > .management-summary-grid { display: none !important; }
body.tp-preparation-active .tp-preparation-shell > .basic-section {
  grid-column: 1 / -1 !important;
  grid-row: 2 !important;
  width: 100%;
}
body.tp-preparation-active .basic-section > app-tournament-basics-editor { margin-top: 0 !important; }
body.tp-preparation-active .tp-preparation-form {
  display: block !important;
  border: 0 !important;
  border-radius: 0 !important;
  padding: 0 !important;
  background: transparent;
}
.tp-heading { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 16px; padding: 14px 24px 12px; }
.tp-heading h2 { font: 650 32px/1.4 'Noto Serif SC', 'Source Han Serif SC', serif; color: var(--tf-ink); margin: 0; }
.tp-heading p { margin: 0; color: var(--tf-muted); font-size: 13px; }
.tp-event-status { color: var(--tf-warm); font-size: 12px; margin-left: auto; }
.tp-settings-list { display: grid; grid-template-columns: minmax(0, 1fr); min-width: 0; width: 100%; gap: 8px; padding: 0 24px; }
.tp-settings-section { min-width: 0; width: 100%; max-width: 100%; border: 1px solid var(--tf-line); border-radius: 6px; background: transparent; overflow: clip; }
.tp-settings-section[open] { background: var(--tf-active); border-color: color-mix(in srgb, var(--tf-accent) 22%, var(--tf-line)); }
html:not(.light-mode) .tp-settings-section[open] { background: color-mix(in srgb, var(--tf-active) 50%, var(--tf-panel)); }
.tp-settings-summary { display: flex; align-items: center; gap: 14px; padding: 12px 18px; min-height: 56px; cursor: pointer; list-style: none; color: var(--tf-ink); }
.tp-settings-summary::-webkit-details-marker { display: none; }
.tp-settings-summary:focus-visible { outline: 2px solid var(--tf-accent); outline-offset: -3px; }
.tp-icon { display: inline-block; width: 20px; height: 20px; flex: 0 0 20px; background: currentColor; mask: var(--tp-icon) center / contain no-repeat; }
.tp-group-title { font-size: 17px; font-weight: 650; flex: 0 0 140px; }
.tp-group-preview { font-size: 13px; color: var(--tf-muted); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; min-width: 0; flex: 1; }
.tp-settings-summary > .tp-icon:last-child { margin-left: auto; width: 16px; height: 16px; flex-basis: 16px; }
.tp-settings-section[open] > summary { color: var(--tf-accent); }
.tp-settings-section[open] > summary > .tp-group-preview { visibility: hidden; }
.tp-settings-section[open] > summary > .tp-icon:last-child { transform: rotate(180deg); }
.tp-settings-body { display: grid; gap: 16px 24px; padding: 2px 30px 20px 52px; grid-template-columns: repeat(12, minmax(0, 1fr)); }
.tp-settings-body > label { min-width: 0; grid-column: span 6 !important; }
.tp-settings-body .meta-label { font-size: 13px !important; line-height: 1.6; font-weight: 500; color: var(--tf-muted); }
body.tp-preparation-active .tp-settings-body .field { margin-top: 6px !important; min-height: 46px; padding: 9px 12px; font-size: 16px; border: 1px solid var(--tf-line); border-radius: 5px; background: color-mix(in srgb, var(--tf-panel) 88%, white); color: var(--tf-ink); width: 100%; }
.tp-settings-body .field:focus-visible { outline: 2px solid var(--tf-accent); outline-offset: 2px; }
.tp-settings-body [data-tp-field='name'], .tp-settings-body [data-tp-field='organizerName'] { grid-column: span 6 !important; }
.tp-settings-body [data-tp-field='startDate'], .tp-settings-body [data-tp-field='endDate'], .tp-settings-body [data-tp-field='registrationDeadline'] { grid-column: span 4 !important; }
.tp-settings-body [data-tp-field='minTeams'], .tp-settings-body [data-tp-field='maxTeams'], .tp-settings-body [data-tp-field='teamSize'], .tp-settings-body [data-tp-field='rewardElo'] { grid-column: span 3 !important; }
.tp-settings-body [data-tp-field='description'], .tp-settings-body [data-tp-field='rules'], .tp-settings-body > .rules-panel { grid-column: 1 / -1 !important; }
.tp-settings-body textarea[name='description'] { min-height: 130px !important; resize: vertical; }
.tp-settings-body textarea[name='rules'] { min-height: 320px !important; line-height: 1.75; resize: vertical; }
.tp-poster-preview { width: 88px; height: 44px; object-fit: cover; border-radius: 4px; flex: 0 0 88px; }
[data-tp-group='poster'] .tp-settings-body > div { grid-column: 1 / -1; margin: 0 !important; display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }
[data-tp-group='poster'] .tp-settings-body img { width: 120px; height: 80px; object-fit: cover; }
.tp-preparation-form > .danger-zone { margin: 10px 24px 0 !important; background: transparent !important; border: 1px solid var(--tf-line) !important; border-radius: 6px !important; padding: 0 !important; }
.tp-preparation-form > .danger-zone > summary { display: flex; align-items: center; gap: 14px; padding: 12px 18px; min-height: 56px; color: var(--tf-muted); }
.tp-preparation-form > .danger-zone > summary > span:nth-child(2) { display: flex; align-items: center; gap: 26px; flex: 1; }
.tp-preparation-form > .danger-zone strong { font-size: 15px; color: var(--tf-ink); }
.tp-preparation-form > .danger-zone small { margin: 0; color: var(--tf-muted); font-size: 12px; }
.tp-preparation-form > .danger-zone .danger-zone__body { padding: 14px 18px; }
.tp-save-footer { position: sticky; bottom: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 24px; margin-top: 14px; background: var(--tf-bg); border-top: 1px solid var(--tf-line); }
.tp-timezone { color: var(--tf-muted); font-size: 12px; }
.tp-save-footer .primary-button { margin: 0; min-height: 46px; padding: 10px 24px; box-shadow: none; }
body.tp-preparation-active .tf-context { padding: 10px 24px; }
body.tp-preparation-active .tf-context h1 { margin-bottom: 8px; }
@media (max-width: 1100px) {
  .tp-group-title { flex-basis: 112px; }
  .tp-settings-body { padding-left: 32px; gap: 18px; }
  .tp-settings-body .field { font-size: 14px; padding-left: 9px; padding-right: 9px; }
}
@media (max-width: 700px) {
  .tp-heading { padding: 18px 0 12px; gap: 6px 10px; }
  .tp-heading h2 { font-size: 23px; }
  .tp-heading p { font-size: 12px; }
  .tp-settings-list { padding: 0; gap: 8px; }
  .tp-settings-summary { padding: 12px; gap: 10px; flex-wrap: wrap; }
  .tp-group-title { flex: 1; font-size: 15px; }
  .tp-settings-summary > .tp-group-preview { order: 2; flex: 0 0 calc(100% - 30px); margin-left: 30px; font-size: 12px; white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .tp-settings-section[open] > summary > .tp-group-preview { display: none; }
  .tp-poster-preview { order: 1; width: 64px; height: 40px; flex-basis: 64px; }
  [data-tp-group='poster'] > summary > .tp-group-preview { flex-basis: calc(100% - 100px); margin-left: 0; }
  .tp-settings-body { grid-template-columns: minmax(0, 1fr); gap: 16px; padding: 2px 14px 20px; }
  .tp-settings-body > label, .tp-settings-body > label[data-tp-field] { grid-column: 1 / -1 !important; }
  .tp-settings-body .field { font-size: 16px; min-width: 0; max-width: 100%; }
  .tp-settings-body textarea[name='rules'] { min-height: 280px !important; }
  .tp-preparation-form > .danger-zone { margin-left: 0 !important; margin-right: 0 !important; }
  .tp-preparation-form > .danger-zone > summary { padding: 12px; gap: 10px; }
  .tp-preparation-form > .danger-zone > summary > span:nth-child(2) { display: block; }
  .tp-preparation-form > .danger-zone small { display: block; margin-top: 3px; }
  .tp-save-footer { padding: 12px 0; }
  .tp-save-footer .primary-button { padding: 10px 18px; }
  body.tp-preparation-active .tf-context { padding: 14px; }
  body.tp-preparation-active .tf-context h2 { font-size: 15px; }
  body.tp-preparation-active .tf-context strong { font-size: 13px; margin-bottom: 3px; }
  body.tp-preparation-active .tf-context-tools { margin-top: 8px; }
}