/**
 * landing-polish.css — 落地页深度优化：对比度、示意组件、计算器滑块
 */

/* ══════════════════════════════════════════════════════════════
   板块 = 底层卡片容器（lp-surface），不是 section 背景/分隔线
   ══════════════════════════════════════════════════════════════ */
.landing-page {
  --lp-surface-bg: rgba(15, 23, 42, 0.20);
  --lp-surface-border: rgba(255, 255, 255, 0.18);
  --lp-surface-shadow: 0 16px 48px rgba(0, 0, 0, 0.20);
  --lp-surface-blur: 14px;
  --lp-surface-radius: 18px;
  --lp-surface-inset-bg: rgba(15, 23, 42, 0.32);
  --lp-surface-inset-border: rgba(255, 255, 255, 0.12);
  --lp-text: #f1f5f9;
  --lp-text-secondary: rgba(226, 232, 240, 0.88);
  --lp-text-muted: rgba(203, 213, 225, 0.82);
  /* 各大板块 h2 统一字号（含对比区 header） */
  --lp-section-title-size: clamp(28px, 3.6vw, 40px);
  --lp-section-title-weight: 800;
  --lp-section-title-tracking: -0.03em;
  --lp-section-title-line: 1.22;

  --orb-glass-bg: var(--lp-surface-bg);
  --lp-card-bg: var(--lp-surface-bg);
  --orb-glass-border: var(--lp-surface-border);
  --lp-card-border: var(--lp-surface-border);
  --orb-glass-shadow: var(--lp-surface-shadow);
  --orb-glass-blur: var(--lp-surface-blur);
}

body.app-theme-light .landing-page {
  --lp-surface-bg: rgba(255, 255, 255, 0.20);
  --lp-surface-border: rgba(15, 23, 42, 0.16);
  --lp-surface-shadow: 0 12px 40px rgba(15, 23, 42, 0.06);
  --lp-surface-inset-bg: rgba(255, 255, 255, 0.32);
  --lp-surface-inset-border: rgba(15, 23, 42, 0.12);
  --lp-text: #1e293b;
  --lp-text-secondary: #334155;
  --lp-text-muted: #475569;
}

/* 各 section 最底层卡片 — 唯一主 surface，不透明度/圆角/阴影只在这里定义 */
.landing-page .lp-surface {
  background: var(--lp-surface-bg);
  border: 1px solid var(--lp-surface-border);
  border-radius: var(--lp-surface-radius);
  box-shadow: var(--lp-surface-shadow);
  backdrop-filter: blur(var(--lp-surface-blur));
  -webkit-backdrop-filter: blur(var(--lp-surface-blur));
}

/* 卡片内部的次级块（Before/After 小格、对比区音频卡、脚注等） */
.landing-page .lp-surface-inset {
  background: var(--lp-surface-inset-bg);
  border: 1px solid var(--lp-surface-inset-border);
  border-radius: 12px;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.landing-page .lp-surface--accent {
  box-shadow: var(--lp-surface-shadow), 0 0 0 1px rgba(99, 102, 241, 0.10);
  border-color: rgba(129, 140, 248, 0.28);
}

.landing-page .lp-langs-panel {
  padding: clamp(20px, 3vw, 28px);
}

.lp-section-header {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: clamp(28px, 4vw, 40px);
}

.lp-section-header h2 {
  margin-bottom: 12px;
}

.landing-page .lp-section-header h2,
.landing-page .orbvop-compare-header h2 {
  font-size: var(--lp-section-title-size);
  font-weight: var(--lp-section-title-weight);
  letter-spacing: var(--lp-section-title-tracking);
  line-height: var(--lp-section-title-line);
}

.lp-section-header p {
  margin-left: auto;
  margin-right: auto;
}

.stats-footnote,
.lp-compete-footnote {
  opacity: 0.88;
}

/* ── 统一卡片文字对比度 ── */
.lp-split-text p,
.lp-case-desc,
.langs-subtitle,
.langs-footnote,
.growth-header p,
.growth-placeholder,
.stat-label {
  color: var(--lp-text-muted);
}

.lp-split-text h3,
.lp-case-title {
  color: #f8fafc;
}

.landing-page .stat-number {
  color: #f1f5f9;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

body.app-theme-light .landing-page .stat-number {
  color: var(--lp-text);
  text-shadow: none;
}

body.app-theme-light .lp-schematic-label,
body.app-theme-light .lp-schematic-clone-col .tag {
  color: var(--lp-text);
}

body.app-theme-light .lp-schematic-vs {
  color: var(--lp-text-muted);
}

/* ── 创作者定位条 ── */
.lp-creator-strip {
  padding-top: 0;
}

.lp-creator-inner {
  background: var(--lp-card-bg);
  border: 1px solid var(--lp-card-border);
  border-radius: 24px;
  padding: clamp(28px, 4vw, 44px);
  text-align: center;
  box-shadow: var(--orb-glass-shadow);
  backdrop-filter: blur(var(--orb-glass-blur));
  -webkit-backdrop-filter: blur(var(--orb-glass-blur));
}

.lp-creator-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #c4b5fd;
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(129, 140, 248, 0.28);
  margin-bottom: 16px;
}

.lp-creator-inner h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.lp-creator-inner > p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--lp-text-secondary);
  max-width: 680px;
  margin: 0 auto 24px;
}

.lp-creator-pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 820px;
  margin: 0 auto;
}

@media (max-width: 720px) {
  .lp-creator-pillars {
    grid-template-columns: 1fr;
  }
}

.lp-creator-pillar {
  padding: 16px 14px;
  border-radius: 14px;
  background: rgba(2, 6, 23, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

.lp-creator-pillar strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 6px;
}

.lp-creator-pillar span {
  font-size: 13px;
  line-height: 1.55;
  color: var(--lp-text-muted);
}

.hero-creator-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #e0e7ff;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(168, 85, 247, 0.12));
  border: 1px solid rgba(129, 140, 248, 0.32);
}

/* ── 流程示意 ── */
.lp-schematic {
  position: relative;
  overflow: hidden;
  min-height: 220px;
}

.lp-schematic-inner {
  padding: 28px 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.lp-schematic-caption {
  display: block;
  padding: 10px 16px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--lp-text-muted);
  text-align: center;
}

.lp-schematic-track {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--lp-surface-inset-bg);
  border: 1px solid var(--lp-surface-inset-border);
}

.lp-schematic-track--vocal { border-color: rgba(129, 140, 248, 0.35); }
.lp-schematic-track--bgm { border-color: rgba(56, 189, 248, 0.28); }
.lp-schematic-track--speaker-a { border-color: rgba(129, 140, 248, 0.4); }
.lp-schematic-track--speaker-b { border-color: rgba(52, 211, 153, 0.35); }
.lp-schematic-track--speaker-c { border-color: rgba(251, 191, 36, 0.35); }

.lp-schematic-label {
  flex-shrink: 0;
  width: 52px;
  font-size: 11px;
  font-weight: 700;
  color: #f8fafc;
}

.lp-schematic-bars {
  flex: 1;
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 36px;
}

.lp-schematic-bars span {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, rgba(129, 140, 248, 0.95), rgba(99, 102, 241, 0.45));
  animation: lp-bar-pulse 2.4s ease-in-out infinite;
}

.lp-schematic-track--bgm .lp-schematic-bars span {
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.9), rgba(14, 165, 233, 0.4));
}

.lp-schematic-track--speaker-b .lp-schematic-bars span {
  background: linear-gradient(180deg, rgba(52, 211, 153, 0.9), rgba(16, 185, 129, 0.4));
}

.lp-schematic-track--speaker-c .lp-schematic-bars span {
  background: linear-gradient(180deg, rgba(251, 191, 36, 0.9), rgba(245, 158, 11, 0.4));
}

.lp-schematic-bars span:nth-child(odd) { height: 55%; }
.lp-schematic-bars span:nth-child(even) { height: 85%; }
.lp-schematic-bars span:nth-child(3n) { height: 40%; }

@keyframes lp-bar-pulse {
  0%, 100% { opacity: 0.75; transform: scaleY(0.92); }
  50% { opacity: 1; transform: scaleY(1); }
}

.lp-schematic-clone-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 10px;
  align-items: center;
  padding: 8px 0;
}

.lp-schematic-clone-col { text-align: center; }

.lp-schematic-clone-col .tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.lp-schematic-clone-col .tag--raw {
  color: #fca5a5;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.lp-schematic-clone-col .tag--orb {
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.28);
}

.lp-schematic-vs {
  font-size: 11px;
  font-weight: 800;
  color: rgba(203, 213, 225, 0.7);
}

.lp-schematic-pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 32px 20px;
}

.lp-schematic-pipeline-step {
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
  color: #f8fafc;
  background: rgba(99, 102, 241, 0.18);
  border: 1px solid rgba(129, 140, 248, 0.28);
}

.lp-schematic-pipeline-arrow {
  color: rgba(203, 213, 225, 0.55);
  font-size: 14px;
}

/* 首屏 Hero：演示视频 + 居中播放按钮 */
.hero-video-shell {
  position: relative;
  overflow: hidden;
  min-height: 100%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-video-shell--with-media {
  background: #020617;
}

.hero-video-player,
.hero-video-poster {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  border: none;
}

.hero-video-youtube {
  object-fit: unset;
}

.hero-video-play {
  position: relative;
  z-index: 2;
  width: 88px;
  height: 88px;
  border: 2px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #fff;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.hero-video-play:hover {
  transform: scale(1.08);
  background: rgba(99, 102, 241, 0.55);
  border-color: rgba(255, 255, 255, 0.45);
}

.hero-video-play svg {
  width: 36px;
  height: 36px;
  margin-left: 4px;
}

body.app-theme-light .hero-video-play {
  color: #0f172a;
  background: rgba(248, 250, 252, 0.72);
  border-color: rgba(15, 23, 42, 0.12);
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.12);
}

body.app-theme-light .hero-video-play:hover {
  color: #fff;
  background: rgba(99, 102, 241, 0.85);
  border-color: transparent;
}

.hero-video-empty {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 100%;
  min-height: 180px;
  padding: 24px 16px;
  box-sizing: border-box;
}

.hero-video-play--placeholder {
  cursor: default;
  opacity: 0.92;
  pointer-events: none;
}

.hero-video-play--placeholder:disabled {
  opacity: 0.92;
}

.lp-video-soon--below-play {
  position: static;
  transform: none;
  pointer-events: none;
}

.lp-video-soon {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: #e2e8f0;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.35);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  pointer-events: none;
  user-select: none;
}

.lp-video-soon--on-stage {
  position: absolute;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  z-index: 3;
  font-size: 12px;
  padding: 6px 12px;
}

body.app-theme-light .lp-video-soon {
  color: #334155;
  background: rgba(248, 250, 252, 0.88);
  border-color: rgba(148, 163, 184, 0.45);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
}

.compare-scrubber__play:disabled,
.compare-scrubber__range:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.lp-case-visual {
  aspect-ratio: 16/9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  background: linear-gradient(145deg, rgba(99, 102, 241, 0.12), rgba(2, 6, 23, 0.5));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.lp-case-visual-icon { font-size: 32px; line-height: 1; }

.lp-case-visual-metric {
  font-size: 22px;
  font-weight: 800;
  color: #f8fafc;
  letter-spacing: -0.02em;
}

.lp-case-visual-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--lp-text-muted);
}

.lp-case-card--featured .lp-case-visual {
  background: linear-gradient(145deg, rgba(99, 102, 241, 0.22), rgba(168, 85, 247, 0.08));
}

.lp-lipsync-note {
  margin-top: 20px;
  padding: 16px 18px;
  text-align: left;
}

.lp-lipsync-note strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 6px;
}

.lp-lipsync-note p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--lp-text-muted);
  margin: 0;
}

.feature-card-smart-clip {
  border-color: rgba(52, 211, 153, 0.28);
  box-shadow:
    0 0 0 1px rgba(52, 211, 153, 0.1),
    0 20px 40px rgba(0, 0, 0, 0.2),
    0 0 48px -12px rgba(52, 211, 153, 0.2);
}

.feature-badge-beta {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
  color: #6ee7b7;
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.28);
  vertical-align: middle;
}

.demo-note-inline {
  font-size: 12px;
  font-weight: 600;
  color: var(--lp-text-muted);
}

.growth-slider-wrap { grid-column: 1 / -1; }

.growth-slider-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.growth-slider-value {
  font-size: 22px;
  font-weight: 800;
  color: #f8fafc;
  font-variant-numeric: tabular-nums;
}

body.app-theme-light .growth-slider-value {
  color: var(--lp-text);
}

.growth-range {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  appearance: none;
  -webkit-appearance: none;
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.35), rgba(168, 85, 247, 0.45));
  outline: none;
  cursor: pointer;
}

.growth-range::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.45);
  cursor: grab;
}

.growth-range-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 11px;
  color: var(--lp-text-muted);
}

.growth-result-pct {
  display: inline-block;
  margin-left: 8px;
  font-size: 14px;
  font-weight: 700;
  color: #86efac;
}

.growth-section .growth-container {
  max-width: 560px;
}

/* ── YouTube 全流程四件套（流程式布局） ── */
.lp-workflow-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: workflow;
}

@media (max-width: 960px) {
  .lp-workflow-flow {
    grid-template-columns: 1fr 1fr;
  }
  .lp-workflow-arrow {
    display: none;
  }
}

@media (max-width: 520px) {
  .lp-workflow-flow {
    grid-template-columns: 1fr;
  }
}

.lp-workflow-step {
  --wf-accent: var(--orb-primary, #6366f1);
  position: relative;
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  border-top: 3px solid transparent;
}

.lp-workflow-step::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--wf-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.lp-workflow-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px -12px rgba(99, 102, 241, 0.45);
  border-color: rgba(99, 102, 241, 0.35);
}

.lp-workflow-step:hover::before {
  transform: scaleX(1);
}

.lp-workflow-step:hover .lp-workflow-icon {
  transform: scale(1.08);
}

.lp-workflow-index {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--wf-accent);
  opacity: 0.85;
}

.lp-workflow-icon {
  font-size: 26px;
  line-height: 1;
  display: block;
  margin-bottom: 2px;
  transition: transform 0.25s ease;
}

.lp-workflow-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: #f8fafc;
  margin: 0;
  letter-spacing: 0.01em;
}

.lp-workflow-kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--wf-accent);
  background: rgba(99, 102, 241, 0.12);
  padding: 3px 8px;
  border-radius: 999px;
  align-self: flex-start;
  letter-spacing: 0.02em;
}

.lp-workflow-desc {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  color: #f8fafc;
  margin: 4px 0 0;
}

.lp-workflow-hint {
  font-size: 12px;
  line-height: 1.55;
  color: var(--lp-text-muted);
  margin-top: auto;
}

.lp-workflow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--orb-primary, #6366f1);
  opacity: 0.6;
  user-select: none;
}

/* 浅色主题覆盖 */
body.app-theme-light .lp-workflow-step h3 {
  color: #0f172a;
}

body.app-theme-light .lp-workflow-desc {
  color: #0f172a;
}

body.app-theme-light .lp-workflow-step {
  background: rgba(255, 255, 255, 0.97);
  border-color: rgba(99, 102, 241, 0.15);
}

/* ── 字幕专区（流程式三步：识别 → 编辑 → 导出） ── */
.lp-subtitle-section {
  /* 自身建立堆叠上下文，避免被前一个 section 里溢出的 blur 装饰层盖住 */
  position: relative;
  z-index: 2;
  isolation: isolate;
}

.lp-subtitle-section .lp-section-header {
  position: relative;
  z-index: 2;
}

.lp-subtitle-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (max-width: 960px) {
  .lp-subtitle-flow {
    grid-template-columns: 1fr;
  }
  .lp-subtitle-arrow {
    display: none;
  }
}

.landing-page .lp-subtitle-step.lp-surface {
  --st-accent: var(--orb-primary, #6366f1);
  position: relative;
  z-index: 1;
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  border-top: 3px solid transparent;
  /* 实色底 + 关掉玻璃 blur，避免正文发虚 */
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: rgba(15, 23, 42, 0.94);
}

.lp-subtitle-step::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--st-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.lp-subtitle-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px -12px rgba(99, 102, 241, 0.45);
  border-color: rgba(99, 102, 241, 0.35);
}

.lp-subtitle-step:hover::before {
  transform: scaleX(1);
}

.lp-subtitle-step:hover .lp-subtitle-icon {
  transform: scale(1.08);
}

.lp-subtitle-index {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--st-accent);
  opacity: 0.85;
}

.lp-subtitle-icon {
  font-size: 26px;
  line-height: 1;
  display: block;
  margin-bottom: 2px;
  transition: transform 0.25s ease;
}

.lp-subtitle-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: #f8fafc;
  margin: 0;
  letter-spacing: 0.01em;
}

.lp-subtitle-step p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--lp-text-muted);
  margin: 0;
}

.lp-subtitle-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--orb-primary, #6366f1);
  opacity: 0.6;
  user-select: none;
}

.lp-subtitle-demo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
}

.lp-subtitle-demo-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid rgba(99, 102, 241, 0.45);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(168, 85, 247, 0.18));
  color: #f8fafc;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  box-shadow: 0 6px 22px -8px rgba(99, 102, 241, 0.55);
}

.lp-subtitle-demo-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(129, 140, 248, 0.85);
  box-shadow: 0 14px 32px -10px rgba(99, 102, 241, 0.65);
}

.lp-subtitle-demo-btn:active {
  transform: translateY(-1px) scale(0.99);
}

.lp-subtitle-demo-play {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: #4f46e5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.lp-subtitle-demo-play svg {
  width: 12px;
  height: 12px;
  margin-left: 1px;
}

.lp-subtitle-demo-hint {
  font-size: 12px;
  color: var(--lp-text-muted);
  letter-spacing: 0.01em;
}

/* 浅色主题覆盖 */
body.app-theme-light .landing-page .lp-subtitle-step.lp-surface h3,
body.app-theme-light .lp-subtitle-step h3 {
  color: #0f172a;
}

body.app-theme-light .landing-page .lp-subtitle-step.lp-surface {
  background: #ffffff;
  border-color: rgba(99, 102, 241, 0.15);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

body.app-theme-light .landing-page .lp-subtitle-step.lp-surface p,
body.app-theme-light .lp-subtitle-step p {
  color: #475569;
}

body.app-theme-light .lp-subtitle-demo-btn {
  color: #312e81;
}

body.app-theme-light .lp-subtitle-demo-play {
  background: #4f46e5;
  color: #fff;
}

.lp-faq-item {
  padding: 16px 18px;
}

.lp-faq-q {
  font-size: 14px;
  font-weight: 600;
  color: var(--lp-text);
  cursor: pointer;
  list-style: none;
  margin: 0;
}

.lp-faq-q::-webkit-details-marker {
  display: none;
}

.lp-faq-q::before {
  content: "▶";
  display: inline-block;
  margin-right: 8px;
  font-size: 10px;
  transition: transform 0.2s;
  vertical-align: middle;
}

details[open] .lp-faq-q::before {
  transform: rotate(90deg);
}

.lp-faq-a {
  font-size: 13px;
  line-height: 1.7;
  color: var(--lp-text-muted);
  margin: 10px 0 0 18px;
  padding: 0;
}

.lp-other-scenarios {
  margin-top: 20px;
  padding: 12px 16px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--lp-text-muted);
  text-align: center;
  border-style: dashed;
}

body.app-theme-light .lp-workflow-step h3,
body.app-theme-light .lp-split-text h3,
body.app-theme-light .lp-case-title,
body.app-theme-light .growth-header h3 {
  color: #0f172a;
}

body.app-theme-light .lp-workflow-hint,
body.app-theme-light .lp-other-scenarios,
body.app-theme-light .lp-split-text p,
body.app-theme-light .lp-case-desc,
body.app-theme-light .growth-header p {
  color: var(--lp-text-muted);
}

body.app-theme-light .lp-schematic-track,
body.app-theme-light .lp-proof-col {
  background: var(--lp-surface-inset-bg);
  border-color: var(--lp-surface-inset-border);
}

body.app-theme-light .lp-split-text h3,
body.app-theme-light .lp-case-title {
  color: #0f172a;
}

body.app-theme-light .hero-creator-subtitle {
  color: #4338ca;
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.18);
}

body.app-theme-light .lp-creator-inner > p,
body.app-theme-light .lp-creator-inner h2 {
  color: var(--lp-text-secondary);
}

body.app-theme-light .lp-creator-inner h2 {
  color: var(--lp-text);
}

body.app-theme-light .lp-creator-pillar strong {
  color: var(--lp-text);
}

body.app-theme-light .lp-creator-pillar span,
body.app-theme-light .lp-creator-badge {
  color: var(--lp-text-muted);
}

body.app-theme-light .lp-creator-badge {
  color: #4338ca;
}

/* 对比区 / Demo — 外层 compare-panel 已是 lp-surface；内层用 inset */
.orbvop-compare-panel .audio-card,
.orbvop-compare-panel .lp-lipsync-note,
.orbvop-compare-panel .orbvop-demo-video {
  background: var(--lp-surface-inset-bg) !important;
  border: 1px solid var(--lp-surface-inset-border) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.audio-desc,
.orbvop-compare-sub,
.orbvop-audio-header .demo-note-inline {
  color: var(--lp-text-muted);
}

.audio-card-header .audio-label,
.orbvop-compare-kicker {
  color: var(--lp-text-secondary);
}

body.app-theme-light .orbvop-compare-panel .audio-card,
body.app-theme-light .orbvop-compare-panel .lp-lipsync-note,
body.app-theme-light .orbvop-compare-panel .orbvop-demo-video {
  background: var(--lp-surface-inset-bg) !important;
  border-color: var(--lp-surface-inset-border) !important;
}

body.app-theme-light .audio-desc,
body.app-theme-light .orbvop-compare-sub {
  color: var(--lp-text-muted);
}

/* 免责声明 — 跟随 app 主题，不依赖 Tailwind dark: */
.lp-disclaimer {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  line-height: 1.55;
  opacity: 0.92;
}

body.app-theme-light .lp-disclaimer {
  color: #64748b;
}

body.app-theme-dark .lp-disclaimer {
  color: rgba(148, 163, 184, 0.88);
}

.growth-result-note {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.6875rem;
  line-height: 1.45;
}

body.app-theme-light .growth-result-note {
  color: #64748b;
}

body.app-theme-dark .growth-result-note {
  color: rgba(148, 163, 184, 0.82);
}

/* Hero 次级 CTA — 已合并至主按钮，类保留以防回滚 */

/* Lip-sync 立场带 — 外层卡片用 lp-surface，此处只保留内边距 */
.lp-lipsync-band-inner {
  padding: 16px 18px;
}

.lp-lipsync-band-inner strong {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
}

.lp-lipsync-band-inner p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  opacity: 0.92;
}

body.app-theme-light .lp-lipsync-band-inner strong {
  color: var(--lp-text);
}

body.app-theme-light .lp-lipsync-band-inner p {
  color: var(--lp-text-muted);
}

/* 竞品对比表 */
.lp-compete-table-wrap {
  overflow-x: auto;
}

.lp-compete-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.lp-compete-table th,
.lp-compete-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.lp-compete-table thead th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.85;
}

.lp-compete-table tbody th[scope="row"] {
  font-weight: 600;
  min-width: 140px;
}

.lp-compete-col-orb {
  background: rgba(99, 102, 241, 0.08);
}

body.app-theme-light .lp-compete-col-orb {
  background: rgba(99, 102, 241, 0.06);
  color: #4338ca;
}

.lp-compete-footnote {
  margin-top: 12px;
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ══════════════════════════════════════════════════════════════
   层叠兜底：压过 light-theme 等后加载样式，保证落地页卡片唯一来源
   ══════════════════════════════════════════════════════════════ */
body.app-theme-light .landing-page .lp-surface {
  background: var(--lp-surface-bg);
  border-color: var(--lp-surface-border);
  box-shadow: var(--lp-surface-shadow);
}

body.app-theme-light .landing-page .lp-surface-inset {
  background: var(--lp-surface-inset-bg);
  border-color: var(--lp-surface-inset-border);
}

body.app-theme-light .landing-page .lp-surface.lp-schematic,
body.app-theme-light .landing-page .lp-lipsync-band-inner.lp-surface {
  background: var(--lp-surface-bg);
  border-color: var(--lp-surface-border);
}

body.app-theme-light .landing-page .lp-lipsync-note.lp-surface-inset,
body.app-theme-light .landing-page .orbvop-compare-panel .audio-card.lp-surface-inset,
body.app-theme-light .landing-page .orbvop-compare-panel .lp-lipsync-note.lp-surface-inset {
  background: var(--lp-surface-inset-bg);
  border-color: var(--lp-surface-inset-border);
}

body.app-theme-light .landing-page .orbvop-compare-panel.lp-surface {
  background: var(--lp-surface-bg);
  border-color: var(--lp-surface-border);
}

/* 情感克隆对比区 — 收紧层级，避免文案叠罗汉 */
.orbvop-compare-panel .orbvop-demo-card {
  width: 100%;
  margin-top: 0;
  padding: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  border-radius: 16px;
}

.orbvop-compare-panel .orbvop-demo-video {
  width: 100%;
  max-width: none;
  margin: 0;
  box-shadow: none;
}

.orbvop-demo-caption {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--lp-text-muted);
  text-align: center;
  max-width: 480px;
  -webkit-font-smoothing: auto;
}

.orbvop-compare-panel .orbvop-lang {
  width: 100%;
  max-width: none;
}

.orbvop-compare-panel .orbvop-lang-label {
  font-size: 13px;
  margin-bottom: 6px;
  text-transform: none;
  letter-spacing: 0.01em;
  font-weight: 600;
  color: var(--lp-text-secondary);
  -webkit-font-smoothing: auto;
}

/* 双栏 16:9 + VS */
.orbvop-compare-stages {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.compare-stage {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  min-width: 0;
}

.compare-stage:hover {
  transform: translateY(-2px);
}

.compare-stage--active-audio {
  border-color: rgba(99, 102, 241, 0.45);
  box-shadow: 0 12px 32px -16px rgba(99, 102, 241, 0.55);
}

.compare-stage__header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.compare-stage__header .audio-label {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--lp-text-secondary, rgba(226, 232, 240, 0.9));
}

.compare-stage__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
  background: #0f172a;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.compare-stage__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #0f172a;
}

.compare-stages-vs {
  align-self: center;
  display: flex;
  align-items: center;
}

.compare-scrubber {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "play range"
    "hint hint";
  gap: 8px 14px;
  align-items: center;
  margin-top: 20px;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--lp-surface-inset-bg, rgba(15, 23, 42, 0.32));
  border: 1px solid var(--lp-surface-inset-border, rgba(255, 255, 255, 0.12));
}

.compare-scrubber__play {
  grid-area: play;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(99, 102, 241, 0.4);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(168, 85, 247, 0.2));
  color: #e0e7ff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.compare-scrubber__play:hover {
  transform: scale(1.04);
  box-shadow: 0 8px 22px -10px rgba(99, 102, 241, 0.65);
}

.compare-scrubber__play svg {
  width: 18px;
  height: 18px;
}

.compare-scrubber__range {
  grid-area: range;
  width: 100%;
  height: 8px;
  accent-color: #6366f1;
  cursor: pointer;
}

.compare-scrubber__hint {
  grid-area: hint;
  font-size: 12px;
  color: var(--lp-text-muted);
  line-height: 1.4;
}

.compare-lang-bar {
  margin-top: 18px;
  position: relative;
  z-index: 3;
  pointer-events: auto;
}

.compare-lang-bar .orbvop-lang-strip {
  pointer-events: auto;
}

.compare-lang-bar .orbvop-lang-pill {
  position: relative;
  z-index: 1;
  cursor: pointer;
  pointer-events: auto;
}

/* 迷你播放器示意：黑底字幕 vs 分色字幕（填满 16:9 框） */
.compare-stage__frame .compare-player-mock {
  position: absolute;
  inset: 0;
  border-radius: 0;
  min-height: 0;
  border: none;
  height: 100%;
  width: 100%;
}

.compare-player-mock {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  min-height: 112px;
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.compare-player-mock__stage {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 30% 40%, rgba(99, 102, 241, 0.22), transparent 55%),
    linear-gradient(145deg, #1e293b 0%, #0f172a 55%, #1e1b4b 100%);
}

.compare-player-mock--raw .compare-player-mock__stage {
  background:
    radial-gradient(ellipse 60% 50% at 50% 35%, rgba(100, 116, 139, 0.35), transparent 60%),
    linear-gradient(160deg, #334155 0%, #1e293b 100%);
  filter: saturate(0.75);
}

.compare-player-mock__caption {
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: 12px;
  z-index: 1;
  text-align: center;
  font-size: clamp(12px, 1.6vw, 14px);
  line-height: 1.35;
  font-weight: 500;
}

.compare-player-mock__caption--raw {
  background: rgba(0, 0, 0, 0.72);
  color: #f8fafc;
  padding: 6px 10px;
  border-radius: 2px;
}

.compare-player-mock__captions-orb {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 12px;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.compare-cap {
  font-size: clamp(12px, 1.6vw, 14px);
  line-height: 1.4;
  font-weight: 500;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.55);
}

.compare-cap--host {
  color: #60a5fa;
}

.compare-cap--guest {
  color: #4ade80;
}

.compare-dim-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.compare-dim-list li {
  position: relative;
  padding-left: 14px;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--lp-text-muted, rgba(148, 163, 184, 0.95));
}

.compare-dim-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.65);
}

.compare-dim-list--orb li {
  color: var(--lp-text-secondary, rgba(203, 213, 225, 0.95));
}

.compare-dim-list--orb li::before {
  background: rgba(99, 102, 241, 0.85);
}

body.app-theme-light .compare-stage__header .audio-label {
  color: #334155;
}

body.app-theme-light .compare-scrubber {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(15, 23, 42, 0.1);
}

body.app-theme-light .compare-scrubber__play {
  color: #312e81;
  background: rgba(99, 102, 241, 0.12);
}

body.app-theme-light .compare-player-mock {
  border-color: rgba(15, 23, 42, 0.12);
}

body.app-theme-light .compare-player-mock__caption--raw {
  background: rgba(15, 23, 42, 0.78);
}

body.app-theme-light .compare-dim-list li {
  color: #64748b;
}

body.app-theme-light .compare-dim-list--orb li {
  color: #334155;
}

@media (max-width: 900px) {
  .orbvop-compare-stages {
    grid-template-columns: 1fr;
  }

  .compare-stages-vs .vs-divider {
    flex-direction: row;
    width: 100%;
    padding: 4px 0;
  }

  .compare-stages-vs .vs-line {
    width: auto;
    flex: 1;
    height: 2px;
  }
}

body.app-theme-light .orbvop-demo-caption,
body.app-theme-light .orbvop-audio-lead {
  color: var(--lp-text-muted);
}

body.app-theme-light .hero-brand-slogan {
  color: var(--lp-text-muted);
}

body.app-theme-light .hero-tag {
  color: #4338ca;
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.18);
}

body.app-theme-light .stat-label,
body.app-theme-light .stat-label-line2 {
  color: var(--lp-text-secondary);
}

body.app-theme-light .stat-label-line2 {
  color: var(--lp-text-muted);
}

body.app-theme-light .orbvop-audio-header h3 {
  color: var(--lp-text);
}

body.app-theme-light .orbvop-compare-panel .audio-card-header .audio-label,
body.app-theme-light .orbvop-compare-kicker {
  color: var(--lp-text-secondary);
}