/* 2026-10-06 場景 checkpoint-restore：處置會留下來。上方是處置按鈕列（時間軸），中間是舞台：三欄並列（進信前｜進信後的信箱｜協作空間的第二落點）加右側固定的「事件單」；
   下方是目前這一步的說明卡。每按一步，信箱多一封信、事件單多一行，前面的不會消失（.on 累積，目前這一步另標 .new）。
   不只靠顏色：擋下＝✕＋虛線、撤回＝↩＋虛線、無害檔＝✓、放回＝↩＋實線；協作空間的落點永遠虛線（只是問「有沒有第二份」，不替產品宣稱）。
   沒有 JS：全部都是 .on，舞台停在最後一步，四張卡並列。 */
.page-blocks .cr { display: grid; gap: 1.25rem; margin-top: clamp(2rem, 5vw, 3.5rem); color: var(--paper); }
.page-blocks .cr :is(.cr-btn, .cr-say, .cr-play)[hidden] { display: none; }
.page-blocks .cr-cap { order: -2; margin: 0; color: var(--muted-on-dark); font-size: .875rem; font-weight: 700; letter-spacing: .08em; }
.page-blocks .cr-steps { display: grid; grid-template-columns: repeat(var(--n, 4), minmax(0, 1fr)); gap: clamp(.75rem, 1.6vw, 1.25rem); margin: 0; padding: 0; list-style: none; }
.page-blocks .cr[data-count="3"] { --n: 3; }
.page-blocks .cr[data-count="2"] { --n: 2; }
.page-blocks .cr-card { display: flex; flex-direction: column; gap: .875rem; height: 100%; padding: clamp(1.25rem, 2.6vw, 1.75rem); border: 1px solid var(--on-dark-line); border-radius: var(--r-card); background: color-mix(in srgb, var(--paper) 4%, var(--deeper)); }
.page-blocks .cr-h { display: flex; gap: .75rem; margin: 0; color: var(--paper); font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 800; line-height: 1.25; }
.page-blocks .cr-h b, .page-blocks .cr-btn b, .page-blocks .cr-t b { color: var(--accent); font-family: "Inter Tight", var(--font-body); font-size: .875em; letter-spacing: .12em; }
.page-blocks .cr-do { display: grid; gap: .25rem; margin: 0; }
.page-blocks .cr-do b, .page-blocks .cr-not b { color: var(--muted-on-dark); font-size: .875rem; font-weight: 700; letter-spacing: .08em; }
.page-blocks .cr-do span { color: var(--paper); font-size: 1.0625rem; }
.page-blocks .cr-not { display: grid; gap: .25rem; margin: auto 0 0; padding: .75rem 1rem; border: 1px dashed var(--on-dark-line); border-radius: var(--radius-m); color: var(--paper); }
.page-blocks .cr-not span::before { content: "✕ " / ""; color: var(--accent); font-weight: 800; }
.page-blocks .cr-say { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.page-blocks .cr-play { justify-self: start; min-height: 2.75rem; padding: 0 1.25rem; border: 1px solid var(--on-dark-line); border-radius: var(--r-pill); background: none; color: var(--muted-on-dark); font: inherit; cursor: pointer; }
.page-blocks .cr-play:hover { border-color: var(--accent); color: var(--paper); }
.page-blocks .cr :is(.cr-play, .cr-btn):focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
/* 舞台 */
.page-blocks .cr-stage { display: grid; grid-template-columns: minmax(0, 1fr) minmax(14rem, .38fr); gap: 1rem; order: -1; }
.page-blocks .cr-lanes { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.25fr) minmax(0, .9fr); border: 1px solid var(--on-dark-line); border-radius: var(--r-card); background: color-mix(in srgb, var(--paper) 4%, var(--deeper)); overflow: hidden; }
.page-blocks .cr-lane { position: relative; display: grid; align-content: start; gap: .75rem; min-height: 15rem; padding: 1rem; }
.page-blocks .cr-lane + .cr-lane { border-left: 2px dashed var(--on-dark-line); }
.page-blocks .cr-lane--box { background: repeating-linear-gradient(0deg, transparent 0 1.75rem, color-mix(in srgb, var(--accent) 14%, transparent) 1.75rem calc(1.75rem + 1px)), color-mix(in srgb, var(--accent) 6%, transparent); border-left-color: var(--accent); }
.page-blocks .cr-lab { margin: 0; color: var(--muted-on-dark); font-size: .875rem; font-weight: 700; letter-spacing: .08em; }
.page-blocks .cr-lane--box .cr-lab { color: var(--accent); }
.page-blocks .cr-mails, .page-blocks .cr-apps, .page-blocks .cr-ticket ol { display: grid; gap: .625rem; margin: 0; padding: 0; list-style: none; }
.page-blocks .cr-mail { position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .625rem; padding: .625rem .75rem; border: 2px solid var(--accent); border-radius: var(--radius-s); background: var(--deeper); font-size: .9375rem; font-weight: 700; line-height: 1.3; }
.page-blocks .cr-mail i { position: relative; width: 1.5rem; height: 1rem; border: 2px solid var(--accent); border-radius: .125rem; overflow: hidden; }
.page-blocks .cr-mail i::before { content: ""; position: absolute; left: 50%; top: -.45rem; width: .8rem; height: .8rem; translate: -50% 0; rotate: 45deg; border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent); }
.page-blocks .cr-mail b { color: var(--accent-spark, var(--accent)); font-size: 1.125rem; }
.page-blocks .cr-mail--stop, .page-blocks .cr-mail--back { border-style: dashed; }
.page-blocks .cr-mail--stop b::before { content: "✕" / ""; }
.page-blocks .cr-mail--back b::before, .page-blocks .cr-mail--home b::before { content: "↩" / ""; }
.page-blocks .cr-mail--clean b::before { content: "✓" / ""; }
.page-blocks .cr-gate { position: absolute; inset: 0 0 0 auto; width: 0; border-right: 3px solid var(--accent); }
.page-blocks .cr-ask { margin: 0; color: var(--paper); font-size: .9375rem; font-weight: 700; }
.page-blocks .cr-apps { display: flex; flex-wrap: wrap; gap: .5rem; }
.page-blocks .cr-apps li { padding: .375rem .875rem; border: 1px dashed var(--muted-on-dark); border-radius: var(--r-pill); color: var(--muted-on-dark); font-size: .875rem; font-weight: 700; }
.page-blocks .cr-ticket { display: grid; align-content: start; gap: .75rem; padding: 1rem; border: 1px solid var(--accent); border-radius: var(--r-card); background: color-mix(in srgb, var(--accent) 7%, var(--deeper)); }
.page-blocks .cr-t { display: flex; gap: .625rem; align-items: baseline; padding-bottom: .625rem; border-bottom: 1px solid var(--on-dark-line); font-size: .9375rem; font-weight: 700; }
.page-blocks .cr-t::after { content: "✓" / ""; margin-left: auto; color: var(--accent); }
/* 有 JS：沒到的步驟隱藏／變虛線，到過的保留 */
.page-blocks .cr.is-live .cr-steps { gap: 0 clamp(.5rem, 1.2vw, 1rem); }
.page-blocks .cr.is-live .cr-step { display: contents; }
.page-blocks .cr.is-live .cr-btn { display: grid; grid-row: 2; align-content: start; gap: .25rem; width: 100%; min-height: 3.5rem; padding: .75rem 0 .5rem; border: 0; border-top: 3px solid var(--on-dark-line); background: none; color: var(--muted-on-dark); font: inherit; font-size: 1.0625rem; font-weight: 600; text-align: left; cursor: pointer; transition: border-color .3s var(--ease), color .3s var(--ease); }
.page-blocks .cr.is-live .cr-btn:hover { color: var(--paper); }
.page-blocks .cr.is-live .cr-btn[aria-current="true"] { border-top-color: var(--accent); color: var(--paper); font-weight: 800; }
.page-blocks .cr.is-live .cr-card { grid-column: 1 / -1; grid-row: 4; height: auto; }
.page-blocks .cr.is-live .cr-step:not(.on) .cr-card { display: none; }
.page-blocks .cr.is-live .cr-h { display: none; }
.page-blocks .cr.is-live .cr-mail:not(.on) { display: none; }
.page-blocks .cr.is-live .cr-t:not(.on) { border-bottom-style: dashed; color: transparent; }
.page-blocks .cr.is-live .cr-t:not(.on) b { color: var(--muted-on-dark); }
.page-blocks .cr.is-live .cr-t:not(.on)::after { content: none; }
.page-blocks .cr.is-live .cr-mail.new, .page-blocks .cr.is-live .cr-t.new { background: color-mix(in srgb, var(--accent) 18%, var(--deeper)); }
.page-blocks .cr:not(.is-live) .cr-steps { margin-top: 0; }
.page-blocks .cr.is-live .cr-stage { order: 0; grid-row: 3; }
.page-blocks .cr.is-live .cr-steps { display: contents; }
.page-blocks .cr.is-live .cr-cap { order: 0; grid-row: 1; grid-column: 1 / -1; margin-bottom: .5rem; }
.page-blocks .cr.is-live { grid-template-columns: repeat(var(--n, 4), minmax(0, 1fr)); gap: 0 clamp(.5rem, 1.2vw, 1rem); }
.page-blocks .cr.is-live .cr-stage, .page-blocks .cr.is-live .cr-card { grid-column: 1 / -1; }
.page-blocks .cr.is-live .cr-stage { margin: 1.25rem 0; }
.page-blocks .cr.is-live .cr-card { margin-bottom: 1.25rem; }
.page-blocks .cr.is-live .cr-play { grid-row: 5; grid-column: 1 / -1; }
@media (prefers-reduced-motion: no-preference) { html:not([data-motion="off"]) .page-blocks .cr.is-live :is(.cr-mail.new, .cr-t.new) { animation: cr-in .5s var(--ease) backwards; } }
@keyframes cr-in { from { opacity: 0; translate: -1rem 0; } }
@media (max-width: 61.99rem) {
  .page-blocks .cr-stage { grid-template-columns: minmax(0, 1fr); }
  .page-blocks .cr-lanes { grid-template-columns: minmax(0, 1fr); }
  .page-blocks .cr-lane { min-height: 0; }
  .page-blocks .cr-lane + .cr-lane { border-left: 0; border-top: 2px dashed var(--on-dark-line); }
  .page-blocks .cr-gate { display: none; }
}
@media (max-width: 47.99rem) {
  .page-blocks .cr:not(.is-live) .cr-steps { grid-template-columns: minmax(0, 1fr); }
  .page-blocks .cr.is-live .cr-btn span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .page-blocks .cr.is-live .cr-h { display: flex; }
}
@media (prefers-reduced-motion: reduce) { html .page-blocks .cr .cr-btn { transition: none; } }
html[data-motion="off"] .page-blocks .cr .cr-btn { transition: none; }
.page-blocks .pp-scene--checkpoint-restore .pp-eyebrow { font-size: .8125rem; }

/* 段落換行更平均，窄螢幕不留一兩個字的短尾行。 */
.page-blocks [data-scene] p { text-wrap: pretty; }