/* ==========================================================================
   Pixel Level Intro Cutscene (关卡像素开场动画系统)
   序章：黑屏白字打字机介绍历史背景 -> 像素动画三幕式剧场（全自动播放）
   ========================================================================== */

/* 全屏黑屏打字序章 */
.px-blackout-screen {
  position: absolute;
  inset: 0;
  z-index: 100;
  background: #000000;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px 32px;
  box-sizing: border-box;
  overflow: hidden;
  font-family: var(--sans, "Cascadia Mono", "Consolas", monospace);
  cursor: pointer;
  user-select: none;
}

/* 复古 CRT 扫描线与暗部噪点 */
.px-blackout-screen::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.45) 50%),
    linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
  background-size: 100% 4px, 6px 100%;
  z-index: 2;
}

/* 退出黑屏动画：像素消隐/扫描线收拢 */
.px-blackout-screen.px-prologue-exit {
  animation: px-blackout-out 0.38s steps(6, end) forwards;
  pointer-events: none;
}

@keyframes px-blackout-out {
  0% {
    opacity: 1;
    filter: brightness(1);
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    filter: brightness(2) contrast(1.5);
  }
  100% {
    opacity: 0;
    transform: scale(1.02);
    visibility: hidden;
  }
}

/* 序章顶部栏 */
.px-prologue-header {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.px-prologue-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #8fa0bc;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.px-prologue-tag i {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #f6cc78;
  box-shadow: 0 0 6px #f6cc78;
  animation: px-blink 1s steps(2, end) infinite;
}

/* 序章中央文字展示区 */
.px-prologue-stage {
  position: relative;
  z-index: 3;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px 0;
}

.px-prologue-box {
  max-width: 760px;
  width: 100%;
  border-left: 3px solid #f6cc78;
  padding: 22px 28px;
  background: rgba(255, 255, 255, 0.02);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
  box-sizing: border-box;
}

.px-prologue-era {
  color: #f6cc78;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.px-prologue-era .px-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #f6cc78;
}

.px-prologue-title {
  color: #ffffff;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.05em;
  margin: 0 0 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 12px;
}

.px-prologue-body {
  color: #ffffff;
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: 0.03em;
  word-break: break-word;
  min-height: 120px;
  text-shadow: 0 0 2px rgba(255, 255, 255, 0.4);
}

.px-typed-text {
  white-space: pre-wrap;
}

.px-caret {
  display: inline-block;
  width: 9px;
  color: #f6cc78;
  font-weight: 900;
  margin-left: 2px;
  animation: px-blink 0.6s steps(2, end) infinite;
  vertical-align: baseline;
}

/* 序章底部控制与提示 */
.px-prologue-footer {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 14px;
  font-size: 11px;
}

.px-prologue-hint {
  color: #6c7d98;
}

.px-prologue-hint kbd {
  background: #1a2233;
  color: #c0d0e6;
  padding: 1px 5px;
  border: 1px solid #334466;
  font-family: inherit;
  font-size: 10px;
}

.px-prologue-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #a0b4d0;
  font-weight: 600;
}

.px-prologue-status .px-status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #39d353;
  box-shadow: 0 0 6px #39d353;
  animation: px-blink 1.2s steps(2, end) infinite;
}

/* ==========================================================================
   像素剧场本体 (三幕式动画)
   ========================================================================== */

.px-intro-theater {
  position: absolute;
  inset: 0;
  z-index: 80;
  background: var(--event-bg, #141c2e);
  color: var(--event-text, #f0f4fc);
  font-family: var(--sans, "Cascadia Mono", "Consolas", monospace);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  box-sizing: border-box;
  animation: px-fade-in 0.3s steps(4, end);
}

@keyframes px-fade-in {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

/* 自动播放顶部进度条 */
.px-intro-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(0, 0, 0, 0.4);
  z-index: 10;
}

.px-intro-progress-fill {
  height: 100%;
  background: var(--event-gold, #f6cc78);
  width: 0%;
  box-shadow: 0 0 6px var(--event-gold, #f6cc78);
  transition: width 0.1s linear;
}

/* 剧场顶部控制栏 */
.px-intro-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--event-panel, #1b263b);
  border-bottom: 2px solid var(--event-line, #384c72);
  box-shadow: 0 3px 0 #0004;
}

.px-intro-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--event-gold, #f6cc78);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.px-intro-tag i {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--event-gold, #f6cc78);
  box-shadow: 0 0 5px var(--event-gold, #f6cc78);
  animation: px-blink 1.2s steps(2, end) infinite;
}

.px-intro-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.px-intro-toggle-play {
  background: var(--event-bg, #141c2e);
  color: var(--event-gold, #f6cc78);
  border: 1px solid var(--event-line, #384c72);
  border-radius: 0;
  padding: 5px 10px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 2px 2px 0 #0004;
  transition: transform 0.1s;
}

.px-intro-toggle-play:hover {
  filter: brightness(1.15);
  border-color: var(--event-gold, #f6cc78);
}

.px-intro-toggle-play:active {
  transform: translateY(2px);
  box-shadow: none;
}

.px-intro-skip {
  background: var(--event-bg, #141c2e);
  color: var(--event-dim, #8ba2c4);
  border: 1px solid var(--event-line, #384c72);
  border-radius: 0;
  padding: 5px 12px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 2px 2px 0 #0004;
  transition: transform 0.1s;
}

.px-intro-skip:hover {
  color: var(--event-gold, #f6cc78);
  border-color: var(--event-gold, #f6cc78);
}

.px-intro-skip:active {
  transform: translateY(2px);
  box-shadow: none;
}

/* 剧场核心舞台视口 */
.px-intro-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

/* 幕 1：物理学家登场 */
.px-act-person {
  display: flex;
  align-items: center;
  gap: 32px;
  max-width: 780px;
  width: 100%;
  background: var(--event-panel, #1b263b);
  border: 2px solid var(--event-line, #384c72);
  box-shadow:
    0 0 0 4px var(--event-bg, #141c2e),
    0 0 0 6px var(--event-line, #384c72),
    6px 6px 0 #0005;
  padding: 24px 30px;
  position: relative;
  animation: px-slide-up 0.35s steps(4, end);
}

.px-person-frame {
  flex-shrink: 0;
  width: 130px;
  height: 140px;
  background: var(--event-bg, #141c2e);
  border: 2px solid var(--event-line, #384c72);
  box-shadow: inset 0 0 0 2px var(--event-panel, #1b263b), 3px 3px 0 #0004;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.px-person-frame .px-portrait {
  width: 90px;
  height: 95px;
  filter: drop-shadow(2px 2px 0 #0006);
}

.px-person-era-badge {
  position: absolute;
  bottom: -10px;
  background: var(--event-gold, #f6cc78);
  color: var(--event-bg, #141c2e);
  font-size: 9px;
  font-weight: 800;
  padding: 2px 6px;
  box-shadow: 1px 1px 0 #0006;
}

.px-person-info {
  flex: 1;
}

.px-person-info .px-kicker {
  color: var(--event-gold, #f6cc78);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.px-person-info h2 {
  font-size: 28px;
  margin: 4px 0 2px;
  color: var(--event-text, #f0f4fc);
  letter-spacing: 0.05em;
}

.px-person-info .px-english {
  font-size: 11px;
  color: var(--event-dim, #8ba2c4);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.px-person-info .px-role-badge {
  display: inline-block;
  background: color-mix(in srgb, var(--event-gold, #f6cc78) 18%, transparent);
  border: 1px solid var(--event-gold, #f6cc78);
  color: var(--event-gold, #f6cc78);
  font-size: 11px;
  padding: 2px 8px;
  margin-bottom: 12px;
}

.px-person-quote {
  font-size: 13px;
  line-height: 1.6;
  color: var(--event-text, #f0f4fc);
  background: var(--event-bg, #141c2e);
  border-left: 3px solid var(--event-gold, #f6cc78);
  padding: 8px 12px;
  margin: 0;
}

/* 幕 2：历史故事与危机 */
.px-act-story {
  display: flex;
  flex-direction: column;
  max-width: 820px;
  width: 100%;
  background: var(--event-panel, #1b263b);
  border: 2px solid var(--event-line, #384c72);
  box-shadow:
    0 0 0 4px var(--event-bg, #141c2e),
    0 0 0 6px var(--event-line, #384c72),
    6px 6px 0 #0005;
  animation: px-slide-up 0.35s steps(4, end);
  overflow: hidden;
}

.px-story-scene-wrapper {
  background: var(--event-bg, #141c2e);
  border-bottom: 2px solid var(--event-line, #384c72);
  padding: 12px 16px;
  display: flex;
  justify-content: center;
  position: relative;
  min-height: 180px;
}

.px-story-scene-wrapper .px-scene {
  max-height: 200px;
  width: 100%;
  max-width: 620px;
  image-rendering: pixelated;
}

.px-story-dialogue {
  padding: 18px 24px;
}

.px-story-dialogue .px-kicker {
  color: var(--event-gold, #f6cc78);
  font-size: 10px;
  letter-spacing: 0.15em;
}

.px-story-dialogue h3 {
  font-size: 20px;
  color: var(--event-text, #f0f4fc);
  margin: 4px 0 10px;
}

.px-story-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--event-dim, #8ba2c4);
  margin-bottom: 12px;
}

.px-story-npc-box {
  background: var(--event-bg, #141c2e);
  border: 1px solid var(--event-line, #384c72);
  border-left: 3px solid #ed947f;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.px-story-npc-box small {
  color: #ed947f;
  font-weight: 700;
  font-size: 11px;
}

.px-story-npc-box span {
  font-size: 12px;
  color: var(--event-text, #f0f4fc);
}

/* 幕 3：任务挑战与物理定律 */
.px-act-mission {
  display: flex;
  flex-direction: column;
  max-width: 780px;
  width: 100%;
  background: var(--event-panel, #1b263b);
  border: 2px solid var(--event-line, #384c72);
  box-shadow:
    0 0 0 4px var(--event-bg, #141c2e),
    0 0 0 6px var(--event-line, #384c72),
    6px 6px 0 #0005;
  padding: 24px 30px;
  animation: px-slide-up 0.35s steps(4, end);
}

.px-mission-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--event-line, #384c72);
  padding-bottom: 10px;
  margin-bottom: 16px;
}

.px-mission-header h3 {
  font-size: 20px;
  color: var(--event-gold, #f6cc78);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.px-mission-header span {
  font-size: 11px;
  color: var(--event-dim, #8ba2c4);
}

.px-mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 18px;
}

.px-mission-card {
  background: var(--event-bg, #141c2e);
  border: 1px solid var(--event-line, #384c72);
  box-shadow: 2px 2px 0 #0003;
  padding: 12px 14px;
}

.px-mission-card small {
  display: block;
  font-size: 10px;
  color: var(--event-gold, #f6cc78);
  font-weight: 700;
  margin-bottom: 4px;
}

.px-mission-card p {
  font-size: 12px;
  line-height: 1.6;
  color: var(--event-text, #f0f4fc);
  margin: 0;
}

.px-mission-formula {
  grid-column: 1 / -1;
  background: var(--event-bg, #141c2e);
  border: 1px solid var(--event-gold, #f6cc78);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.px-mission-formula strong {
  font-size: 11px;
  color: var(--event-dim, #8ba2c4);
}

.px-mission-formula code {
  color: var(--event-gold, #f6cc78);
  font-size: 14px;
  font-weight: 700;
}

/* 剧场底部操作与步进栏 */
.px-intro-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--event-panel, #1b263b);
  border-top: 2px solid var(--event-line, #384c72);
  box-shadow: 0 -3px 0 #0004;
}

.px-intro-steps {
  display: flex;
  gap: 8px;
}

.px-step-pill {
  border: 1px solid var(--event-line, #384c72);
  background: var(--event-bg, #141c2e);
  color: var(--event-dim, #8ba2c4);
  font-family: inherit;
  font-size: 11px;
  padding: 5px 12px;
  border-radius: 0;
  cursor: pointer;
  box-shadow: 2px 2px 0 #0003;
  transition: all 0.1s;
}

.px-step-pill:hover {
  color: var(--event-text, #f0f4fc);
  border-color: var(--event-text, #f0f4fc);
}

.px-step-pill.active {
  background: var(--event-gold, #f6cc78);
  color: var(--event-bg, #141c2e);
  border-color: var(--event-gold, #f6cc78);
  font-weight: 800;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,0.3), 2px 2px 0 #0003;
}

.px-intro-actions {
  display: flex;
  gap: 12px;
}

.px-intro-btn-next,
.px-intro-btn-start {
  background: var(--event-gold, #f6cc78);
  color: var(--event-bg, #141c2e);
  border: 2px solid var(--event-gold, #f6cc78);
  border-radius: 0;
  font-family: inherit;
  font-size: 13px;
  font-weight: 800;
  padding: 8px 18px;
  cursor: pointer;
  box-shadow: 0 3px 0 color-mix(in srgb, var(--event-gold, #f6cc78) 40%, #000);
  transition: transform 0.1s, filter 0.1s;
}

.px-intro-btn-next:hover,
.px-intro-btn-start:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.px-intro-btn-next:active,
.px-intro-btn-start:active {
  transform: translateY(3px);
  box-shadow: none;
}

.px-btn-countdown {
  display: inline-block;
  opacity: 0.85;
  margin-left: 4px;
  font-variant-numeric: tabular-nums;
}

@keyframes px-slide-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes px-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* 响应式适配 */
@media (max-width: 700px) {
  .px-blackout-screen {
    padding: 16px;
  }
  .px-prologue-box {
    padding: 16px;
  }
  .px-prologue-title {
    font-size: 20px;
  }
  .px-prologue-body {
    font-size: 14px;
  }
  .px-act-person {
    flex-direction: column;
    text-align: center;
    gap: 16px;
    padding: 16px;
  }
  .px-person-frame {
    width: 100px;
    height: 110px;
  }
  .px-person-quote {
    text-align: left;
  }
  .px-story-scene-wrapper {
    min-height: 140px;
    padding: 6px;
  }
  .px-mission-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .px-intro-footer {
    padding: 10px 14px;
    flex-wrap: wrap;
    gap: 10px;
  }
  .px-intro-steps {
    order: 2;
    width: 100%;
    justify-content: center;
  }
  .px-intro-actions {
    order: 1;
    width: 100%;
  }
  .px-intro-btn-next,
  .px-intro-btn-start {
    width: 100%;
  }
}