/**
 * Landing Page Styles - Modern & Creative
 */

/* ========================================
  Base
  ======================================== */

:root {
  --orb-glass-bg: rgba(15, 23, 42, 0.20);
  --orb-glass-border: rgba(255, 255, 255, 0.14);
  --lp-card-bg: var(--orb-glass-bg);
  --lp-card-border: var(--orb-glass-border);
  --lp-text-secondary: rgba(226, 232, 240, 0.88);
  --lp-text-muted: rgba(203, 213, 225, 0.82);
  --orb-glass-shadow: 0 16px 48px rgba(0, 0, 0, 0.20);
  --orb-glass-blur: 14px;
  --orb-sheen: linear-gradient(135deg, rgba(255, 255, 255, 0.06), transparent 38%);
}

.landing-page {
  min-height: 100vh;
  overflow-x: visible; /* 增长计算器爆表时允许数字溢出（桌面端） */
  max-width: 100%;
  background:
    radial-gradient(1400px 1000px at 15% -15%, rgba(56, 189, 248, 0.18) 0%, transparent 55%),
    radial-gradient(1200px 900px at 88% 5%, rgba(168, 85, 247, 0.18) 0%, transparent 50%),
    radial-gradient(1000px 800px at 55% 115%, rgba(236, 72, 153, 0.15) 0%, transparent 52%),
    radial-gradient(800px 600px at 5% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(900px 700px at 95% 60%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #020617 0%, #0b1220 35%, #0f172a 100%);
  color: #e5e7eb;
  position: relative;
  z-index: 0;
  padding-top: 16px;
  margin-top: -16px;
}

/* Emergency maintenance banner (ORBVOP_MAINTENANCE_MODE) */
.landing-maintenance-banner {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  margin: 0 16px 8px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(251, 191, 36, 0.45);
  background: rgba(120, 53, 15, 0.88);
  color: #fffbeb;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(8px);
}

.landing-maintenance-banner__title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.landing-maintenance-banner__body {
  font-size: 0.875rem;
  line-height: 1.45;
  opacity: 0.95;
  flex: 1 1 12rem;
}

.hero-upload.is-maintenance,
.hero-upload.hero-cta-primary.is-maintenance {
  opacity: 0.62;
  cursor: not-allowed;
  filter: grayscale(0.25);
}

.hero-upload.is-maintenance:hover,
.hero-upload.hero-cta-primary.is-maintenance:hover {
  transform: none;
  box-shadow: none;
}

body.app-theme-light .landing-maintenance-banner {
  background: rgba(254, 243, 199, 0.96);
  border-color: rgba(217, 119, 6, 0.55);
  color: #78350f;
  box-shadow: 0 6px 18px rgba(120, 53, 15, 0.12);
}

.landing-page::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    /* 边角暗角氛围 */
    radial-gradient(ellipse 120% 100% at 50% 50%, transparent 35%, rgba(0, 0, 0, 0.12) 100%),
    /* 微妙光晕 */
    radial-gradient(1200px 700px at 20% 0%, rgba(255, 255, 255, 0.05), transparent 55%),
    radial-gradient(900px 520px at 85% 22%, rgba(255, 255, 255, 0.04), transparent 60%),
    radial-gradient(600px 400px at 50% 90%, rgba(99, 102, 241, 0.04), transparent 65%),
    /* 全局网格 */
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 80px 80px, 80px 80px;
  mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0,0,0,1) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0) 100%);
  opacity: 0.38;
}

/* 全局动态扫光层 */
.landing-page::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(99, 102, 241, 0.04) 25%,
    rgba(168, 85, 247, 0.06) 50%,
    rgba(99, 102, 241, 0.04) 75%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: globalSheen 14s ease-in-out infinite;
  mix-blend-mode: overlay;
}

@keyframes globalSheen {
  0%, 100% { background-position: 200% 0; }
  50% { background-position: -200% 0; }
}

.landing-page a {
  color: inherit;
}

/* 滚动时 section 分隔线扫光 */
.section-sheen {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.3), transparent);
  opacity: 0;
  transform: translateX(-100%);
  transition: opacity 0.5s ease;
}

.lp-section:hover .section-sheen {
  opacity: 1;
  animation: sectionSheen 2s ease-out forwards;
}

@keyframes sectionSheen {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.landing-page section {
  position: relative;
  z-index: 1;
}

.landing-page :is(.demo-container, .features-container, .compare-container, .langs-container, .cta-container, .success-container, .trend-container, .stats-container, .growth-container) {
  width: 100%;
  position: relative;
  z-index: 1;
}

.landing-page :is(.demo-header h2, .success-header h2, .compare-container h2, .langs-container h2, .cta-container h2) {
  letter-spacing: -0.03em;
}

.landing-page :is(.demo-header p, .success-header p, .compare-container > p, .langs-subtitle, .cta-container p) {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
  Landing Layout System (Premium rhythm)
  ======================================== */

.lp-section {
  padding: clamp(64px, 8vw, 88px) clamp(20px, 4vw, 32px);
  position: relative;
  /* 独立 stacking context：让 .lp-section::before / ::after 上的 z-index: -1
     安全地退到 section 背景之下，而不是溢出后盖在卡片/文字之上 */
  isolation: isolate;
}

.lp-section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: min(980px, calc(100vw - 64px));
  height: 120px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(99, 102, 241, 0.12), transparent 68%);
  filter: blur(12px);
  opacity: 0.28;
  pointer-events: none;
  z-index: -1;
}

.lp-section::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: min(820px, calc(100vw - 84px));
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--lp-divider, rgba(255, 255, 255, 0.10)), transparent);
  opacity: 0.22;
  pointer-events: none;
  z-index: -1;
}

.lp-section:first-of-type::before {
  display: none;
}

.lp-section:first-of-type::after {
  display: none;
}

/* Landing Scroll Reveal polish */
.landing-page .sr {
  will-change: opacity, transform;
  opacity: 0;
  transform: translateY(26px);
}

.landing-page .sr.visible {
  opacity: 1;
  transform: translateY(0);
}

.landing-page .sr[data-sr] {
  transition: opacity 0.8s cubic-bezier(0.2, 0.9, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.9, 0.2, 1);
}

.lp-container {
  max-width: 1120px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.compare-section-pro .lp-container {
  max-width: 1320px;
}

.lp-section-header {
  text-align: center;
  margin-bottom: 56px;
  position: relative;
  z-index: 1;
}

.lp-section-header h2 {
  font-size: var(--lp-section-title-size, clamp(28px, 3.6vw, 40px));
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 14px;
  letter-spacing: -0.03em;
  line-height: 1.22;
}

.lp-section-header p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--lp-text-secondary);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.lp-toggle {
  margin: 18px auto 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(226, 232, 240, 0.90);
  font-size: 13px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.lp-toggle:hover {
  background: rgba(99, 102, 241, 0.14);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
  transform: translateY(-1px);
}

.lp-toggle:active {
  transform: translateY(0);
}

.lp-toggle-icon {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(99, 102, 241, 0.22);
  color: rgba(224, 231, 255, 0.95);
  font-weight: 900;
  line-height: 1;
}

.orbvop-compare-header {
  text-align: center;
  margin-bottom: 24px;
}

.orbvop-compare-header h2 {
  font-size: var(--lp-section-title-size, clamp(28px, 3.6vw, 40px));
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
  letter-spacing: -0.03em;
  line-height: 1.22;
}

.orbvop-compare-header p {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(226, 232, 240, 0.78);
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.orbvop-compare-toggle {
  margin: 14px auto 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(226, 232, 240, 0.90);
  font-size: 13px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.orbvop-compare-toggle:hover {
  background: rgba(99, 102, 241, 0.14);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
  transform: translateY(-1px);
}

.orbvop-compare-toggle-icon {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(99, 102, 241, 0.22);
  color: rgba(224, 231, 255, 0.95);
  font-weight: 900;
  line-height: 1;
}

.orbvop-compare-panel {
  position: relative;
  isolation: isolate;
  margin-top: 18px;
  padding: clamp(24px, 3vw, 32px);
  container-type: inline-size;
  max-width: 100%;
  overflow-x: hidden;
}

.orbvop-compare-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    var(--orb-sheen),
    radial-gradient(600px 220px at 22% 0%, rgba(99, 102, 241, 0.10), transparent 60%);
  opacity: 0.35;
  pointer-events: none;
}

.orbvop-compare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: stretch;
}

/* 旧双列布局保留类名兼容；新结构用 .orbvop-compare-stages */
.orbvop-compare-stages {
  width: 100%;
}

.orbvop-compare-grid > * {
  min-width: 0;
}

@container (max-width: 1100px) {
  .orbvop-compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .orbvop-compare-panel {
    padding: 26px;
  }
}

@media (max-width: 1100px) {
  .orbvop-compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.orbvop-compare-kicker {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(224, 231, 255, 0.92);
  margin-bottom: 8px;
}

.orbvop-compare-sub {
  font-size: 14px;
  line-height: 1.65;
  color: var(--lp-text-muted);
}

.orbvop-demo-card {
  margin-top: 16px;
  display: grid;
  gap: 12px;
  justify-items: start;
}

.orbvop-demo-video {
  aspect-ratio: 16/9;
  max-height: 340px;
  width: min(100%, 480px);
  max-width: 100%;
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.25);
}

.orbvop-demo-video .video-overlay {
  left: 50%;
  transform: translateX(-50%);
  right: auto;
  top: 50%;
  bottom: auto;
  translate: 0 -50%;
  text-align: center;
  flex-direction: column;
  gap: 6px;
  padding: 14px 18px;
}

.orbvop-demo-overlay-note {
  font-size: 12px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.80);
}

.orbvop-demo-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 14px;
  font-size: 13px;
  font-weight: 500;
  color: #a5b4fc;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.orbvop-demo-note svg {
  width: 18px;
  height: 18px;
}

.orbvop-lang {
  position: relative;
  width: min(100%, 480px);
}

.orbvop-lang-label {
  font-size: 13px;
  font-weight: 700;
  color: rgba(226, 232, 240, 0.80);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.orbvop-lang-strip {
  display: inline-flex;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  max-height: 46px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  min-width: 0;
  flex: 1 1 auto;
  overscroll-behavior-x: contain;
  max-inline-size: 100%;
  scrollbar-width: none;
  cursor: grab;
  user-select: none;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  touch-action: pan-x;
}

.orbvop-lang-strip.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
}

.orbvop-lang-strip::-webkit-scrollbar {
  height: 0;
}

.orbvop-lang-strip::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.25);
  border-radius: 999px;
}

.orbvop-lang-strip:hover::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.28);
}

.orbvop-lang-fade {
  position: absolute;
  top: 30px;
  bottom: 0;
  width: 42px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.orbvop-lang-fade.left {
  left: 0;
  background: linear-gradient(90deg, rgba(2, 6, 23, 0.95), rgba(2, 6, 23, 0));
}

.orbvop-lang-fade.right {
  right: 0;
  background: linear-gradient(270deg, rgba(2, 6, 23, 0.95), rgba(2, 6, 23, 0));
}

.orbvop-lang.has-overflow .orbvop-lang-fade {
  opacity: 1;
}

.orbvop-lang.is-at-start .orbvop-lang-fade.left {
  opacity: 0;
}

.orbvop-lang.is-at-end .orbvop-lang-fade.right {
  opacity: 0;
}

.orbvop-lang-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(2, 6, 23, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(226, 232, 240, 0.86);
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  scroll-snap-align: start;
  white-space: nowrap;
}

.orbvop-lang-pill:hover {
  border-color: rgba(99, 102, 241, 0.45);
  background: rgba(99, 102, 241, 0.10);
}

.orbvop-lang-pill.active {
  border-color: rgba(99, 102, 241, 0.75);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.28), rgba(168, 85, 247, 0.18));
  color: #f8fafc;
}

.orbvop-lang-pill .lang-flag {
  font-size: 14px;
}

.orbvop-lang-pill .lang-name {
  font-size: 12px;
  font-weight: 600;
}

.orbvop-audio-header h3 {
  font-size: 18px;
  font-weight: 800;
  color: rgba(226, 232, 240, 0.92);
  margin: 0 0 12px;
}

.orbvop-audio-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}

.orbvop-audio-tabs::-webkit-scrollbar {
  height: 6px;
}

.orbvop-audio-tabs::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.25);
  border-radius: 999px;
}

.orbvop-audio-tab {
  padding: 10px 16px;
  background: rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.78);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.orbvop-audio-tab:hover {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.3);
  color: rgba(226, 232, 240, 0.92);
}

.orbvop-audio-tab.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.30), rgba(168, 85, 247, 0.20));
  border-color: rgba(99, 102, 241, 0.55);
  color: #e0e7ff;
}

.orbvop-audio-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.orbvop-audio-compare > * {
  min-width: 0;
}

.orbvop-vs {
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbvop-compare-panel .vs-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 8px;
}

.orbvop-compare-panel .vs-line {
  width: 2px;
  height: 72px;
  background: linear-gradient(180deg, transparent, rgba(99, 102, 241, 0.6), transparent);
}

.orbvop-compare-panel .vs-text {
  font-size: 18px;
  font-weight: 900;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding: 6px 14px;
  border-radius: 8px;
}

@container (max-width: 760px) {
  .orbvop-audio-compare {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .orbvop-vs .vs-divider {
    flex-direction: row;
    gap: 12px;
  }

  .orbvop-compare-panel .vs-line {
    width: 70px;
    height: 2px;
  }
}

/* Compare section header polish */
.compare-section-pro .lp-section-header {
  margin-bottom: 32px;
}

.compare-section-pro .lp-section-header p {
  max-width: 780px;
}

.compare-section-pro .lp-toggle {
  margin-top: 18px;
}

/* Neutralize legacy grid header styles if any remain in DOM */
.compare-section-pro .compare-pro-header {
  margin: 0;
  text-align: inherit;
}

.compare-section-pro .compare-pro-header h2 {
  font-size: inherit;
  font-weight: inherit;
  background: none;
  -webkit-text-fill-color: currentColor;
  color: inherit;
  margin-bottom: 0;
}

.compare-section-pro .compare-pro-header p {
  font-size: inherit;
  color: inherit;
}

.lp-detail-panel {
  margin-top: 24px;
  padding: 32px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(2, 6, 23, 0.78), rgba(2, 6, 23, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.10);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.lp-detail-panel .compare-pro-container {
  background: transparent;
}

.lp-detail-panel * {
  color-scheme: dark;
}

.lp-detail-panel .demo-player-wrapper {
  width: 100%;
}

.lp-expand-enter-active,
.lp-expand-leave-active {
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.lp-expand-enter-from,
.lp-expand-leave-to {
  opacity: 0;
  transform: translateY(-6px);
}

.lp-detail-block {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 24px;
}

.lp-detail-title {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(224, 231, 255, 0.92);
  margin-bottom: 10px;
}

.lp-detail-subtitle {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(226, 232, 240, 0.72);
}

.lp-detail-divider {
  height: 1px;
  max-width: 980px;
  margin: 28px auto;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.10), transparent);
}

.lp-feature-rows {
  background: linear-gradient(180deg, rgba(2,6,23,0.57) 0%, rgba(2,6,23,0.71) 100%);
}

.lp-split-row {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  padding: 28px;
  margin: 0 auto 18px;
  border-radius: 20px;
  background: var(--orb-glass-bg);
  border: 1px solid var(--orb-glass-border);
  box-shadow: var(--orb-glass-shadow);
  backdrop-filter: blur(var(--orb-glass-blur));
  -webkit-backdrop-filter: blur(var(--orb-glass-blur));
}

.lp-split-row.step-advantage {
  isolation: isolate;
  border-color: rgba(99, 102, 241, 0.28);
  box-shadow: 0 36px 120px rgba(0, 0, 0, 0.34), 0 0 0 1px rgba(99, 102, 241, 0.10);
}

.lp-split-row.step-advantage::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    radial-gradient(700px 260px at 18% 0%, rgba(99, 102, 241, 0.18), transparent 60%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 40%);
  opacity: 0.85;
  pointer-events: none;
}

.lp-split-row.step-advantage .lp-kicker {
  color: rgba(224, 231, 255, 0.95);
}

.lp-split-row.step-advantage h3 {
  text-shadow: 0 18px 70px rgba(99, 102, 241, 0.24);
}

.lp-split-row.step-advantage .lp-bullet {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.22);
  color: rgba(226, 232, 240, 0.92);
}

.lp-split-row.step-advantage .lp-bullets {
  gap: 10px;
}

.lp-split-row.step-advantage .lp-bullet {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 999px;
  border-width: 1px;
  background: rgba(15, 23, 42, 0.35);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(calc(var(--orb-glass-blur) - 6px));
  -webkit-backdrop-filter: blur(calc(var(--orb-glass-blur) - 6px));
}

.lp-split-row.step-advantage .lp-bullet::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.9);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18);
}

.lp-split-row:last-child {
  margin-bottom: 0;
}

.lp-split-row.reverse {
  grid-template-areas: "media text";
}

.lp-split-row.reverse .lp-split-text {
  grid-area: text;
}

.lp-split-row.reverse .lp-split-media {
  grid-area: media;
}

.lp-split-text {
  max-width: 520px;
}

.lp-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.22);
  color: rgba(224, 231, 255, 0.9);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.lp-split-text h3 {
  font-size: 22px;
  font-weight: 800;
  color: #f8fafc;
  line-height: 1.25;
  margin-bottom: 10px;
}

.lp-split-text p {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(226, 232, 240, 0.72);
}

.lp-split-row.step-advantage .lp-split-text p {
  color: rgba(226, 232, 240, 0.82);
}

.lp-bullets {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.lp-bullet {
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(2, 6, 23, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(226, 232, 240, 0.82);
  font-size: 13px;
}

.lp-split-media {
  border-radius: 18px;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lp-split-row.step-advantage .lp-split-media {
  isolation: isolate;
}

.lp-split-media.placeholder-slot {
  border-style: solid;
  border-color: rgba(255, 255, 255, 0.10);
  background-image:
    radial-gradient(900px 420px at 18% 0%, rgba(99, 102, 241, 0.16), transparent 62%),
    radial-gradient(700px 320px at 90% 20%, rgba(56, 189, 248, 0.12), transparent 58%),
    linear-gradient(180deg, rgba(2, 6, 23, 0.40), rgba(2, 6, 23, 0.68));
  box-shadow: 0 30px 120px rgba(0, 0, 0, 0.40), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.lp-split-media.placeholder-slot::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(transparent 0%, transparent 96%, rgba(255, 255, 255, 0.06) 100%),
    linear-gradient(90deg, transparent 0%, transparent 96%, rgba(255, 255, 255, 0.05) 100%);
  background-size: 22px 22px;
  opacity: 0.35;
  pointer-events: none;
}

.lp-split-media.placeholder-slot::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(98deg, transparent 42%, rgba(255, 255, 255, 0.06) 50%, transparent 58%);
  transform: translateX(-25%) rotate(4deg);
  transform-origin: center center;
  opacity: 0;
  transition: transform 0.75s cubic-bezier(0.28, 0.72, 0.28, 1), opacity 0.35s ease;
  pointer-events: none;
}

.lp-split-row:hover .lp-split-media.placeholder-slot::after {
  opacity: 0.5;
  transform: translateX(25%) rotate(4deg);
}

.lp-media-inner {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 26px;
}

.lp-placeholder-hint {
  font-size: 12px;
  font-weight: 600;
  color: rgba(203, 213, 225, 0.92);
  letter-spacing: 0.06em;
}

.lp-media-label {
  font-size: 13px;
  font-weight: 600;
  color: rgba(241, 245, 249, 0.92);
}

.lp-split-media.placeholder-slot .lp-media-label {
  font-size: 13px;
  letter-spacing: 0.01em;
  color: rgba(226, 232, 240, 0.86);
  background: rgba(2, 6, 23, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.10);
  padding: 10px 12px;
  border-radius: 999px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(calc(var(--orb-glass-blur) - 6px));
  -webkit-backdrop-filter: blur(calc(var(--orb-glass-blur) - 6px));
}

@media (max-width: 900px) {
  .lp-split-row.step-advantage::before {
    opacity: 0.5;
  }

  .lp-split-row.step-advantage .lp-split-media {
    overflow: hidden;
  }

  .lp-split-row.step-advantage .lp-media-inner {
    padding: 28px;
  }
}

/* Cases (Success stories) */
.lp-cases {
  background: linear-gradient(180deg, rgba(2,6,23,0.74) 0%, rgba(2,6,23,0.88) 100%);
}

.lp-case-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 18px;
}

.lp-case-card {
  overflow: hidden;
}

.lp-case-card--featured {
  grid-row: span 2;
}

.lp-case-media {
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lp-case-body {
  padding: 18px 18px 20px;
}

.lp-case-title {
  font-size: 16px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 8px;
}

.lp-case-metric {
  font-size: 14px;
  color: rgba(224, 231, 255, 0.92);
  margin-bottom: 10px;
}

.lp-case-desc {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(226, 232, 240, 0.72);
}

.lp-case-meta {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(148, 163, 184, 0.85);
}

@media (max-width: 900px) {
  .lp-case-grid {
    grid-template-columns: 1fr;
  }

  .lp-case-card--featured {
    grid-row: auto;
  }

  .lp-split-row {
    grid-template-columns: 1fr;
    grid-template-areas: initial;
    gap: 32px;
  }

  /* Step 02 移动端：卡片移到文字下方，和 01、03 一致 */
  .lp-split-row.reverse {
    grid-template-columns: 1fr;
    grid-template-areas: "text" "media";
    gap: 32px;
  }

  /* Step 02 单独加大间距 */
  .lp-split-row.step-advantage {
    gap: 36px;
  }

  .lp-split-text {
    max-width: none;
  }

  .lp-section {
    padding: 76px 20px;
  }
}

.text-gradient {
  background: var(--orbvop-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   Hero Section - Full Screen
   ======================================== */

.hero-full {
  position: relative;
  min-height: min(100vh, 880px);
  max-height: 1080px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 32px 32px 64px;
  overflow: hidden;
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

/* 几何图形（orb、geo）强制置底，暗色罩层在内容与几何之间，克制 */
.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 85% 65% at 50% 45%, transparent 35%, rgba(2, 6, 23, 0.18) 85%);
  pointer-events: none;
  z-index: -1;
}

.hero-geo {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.7;
  z-index: -2;
}

.hero-geo-rings {
  position: absolute;
  width: 960px;
  height: 960px;
  left: -30%;
  top: -20%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 40% 40%, rgba(99, 102, 241, 0.06), transparent 62%),
    radial-gradient(circle at 70% 70%, rgba(168, 85, 247, 0.04), transparent 66%);
  filter: blur(0.2px);
  transform: rotate(-10deg);
}

.hero-geo-rings::before,
.hero-geo-rings::after {
  content: '';
  position: absolute;
  inset: 120px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
  opacity: 0.28;
}

.hero-geo-rings::after {
  inset: 220px;
  opacity: 0.15;
}

.hero-geo-grid {
  position: absolute;
  inset: -20px;
  opacity: 0.08;
  transform: perspective(900px) rotateX(58deg) rotateZ(-12deg) translateY(-4%);
  transform-origin: 50% 25%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(520px 380px at 48% 12%, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 68%);
}

/* 置顶几何体：在内容之上 */
.hero-geo-foreground {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.hero-geo-foreground-rings {
  position: absolute;
  width: 680px;
  height: 680px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(-8deg);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
  opacity: 0.25;
}

.hero-geo-foreground-prism {
  position: absolute;
  width: 200px;
  height: 120px;
  right: 18%;
  top: 28%;
  opacity: 0.18;
  z-index: 1;
}

.hero-geo-prism {
  position: absolute;
  width: 360px;
  height: 220px;
  right: -50px;
  top: 22%;
  opacity: 0.22;
  transform: rotate(12deg);
  background:
    linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(168, 85, 247, 0.03) 55%, transparent);
  clip-path: polygon(12% 8%, 92% 0%, 100% 82%, 22% 100%, 0% 44%);
  border: 1px solid rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

@media (prefers-reduced-motion: reduce) {
  .hero-geo-grid {
    transform: none;
  }
  .placeholder-slot::after {
    animation: none;
  }
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.28;
}

.hero-orb-1 {
  top: -10%;
  left: 10%;
  width: 600px;
  height: 600px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.5), rgba(168, 85, 247, 0.35));
  animation: float1 24s ease-in-out infinite;
}

.hero-orb-2 {
  bottom: -10%;
  right: 0%;
  width: 520px;
  height: 520px;
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.35), rgba(168, 85, 247, 0.3));
  animation: float2 30s ease-in-out infinite;
}

.hero-orb-3 {
  top: 32%;
  right: 18%;
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.35), rgba(236, 72, 153, 0.25));
  animation: float3 22s ease-in-out infinite;
}

@keyframes float1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(24px, 16px) scale(1.05); }
}

@keyframes float2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-16px, -20px) scale(1.02); }
}

@keyframes float3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(12px, -16px) scale(0.98); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.hero-content > .hero-brand { margin-bottom: 18px; }
.hero-content > .hero-tag    { margin-bottom: 24px; }
.hero-content > .hero-creator-subtitle { margin-bottom: 8px; }
.hero-content > .hero-headline { margin-bottom: 18px; }
.hero-content > .hero-desc    { margin-bottom: 24px; }
.hero-content > .hero-trust-strip { margin-bottom: 24px; }
.hero-content > .hero-upload { margin-top: 4px; }

@media (min-width: 1200px) {
  .hero-content {
    margin-left: 0;
    margin-right: auto;
    text-align: left;
    align-items: flex-start;
  }
  .hero-content > .hero-brand,
  .hero-content > .hero-tag,
  .hero-content > .hero-trust-strip {
    margin-left: 0;
  }
  .hero-content > .hero-desc { margin-left: 0; margin-right: 0; }
}

.hero-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px 8px 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.10);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  margin-bottom: 4px;
}

.hero-brand::before {
  content: "";
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, #f8fafc 0%, #a5b4fc 38%, #6366f1 65%, #312e81 100%);
  box-shadow:
    0 0 0 2px rgba(99, 102, 241, 0.35),
    0 4px 14px rgba(99, 102, 241, 0.45);
  flex-shrink: 0;
}

.hero-brand-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(248, 250, 252, 0.92);
  text-transform: uppercase;
}

.hero-brand-slogan {
  font-size: 12px;
  color: rgba(203, 213, 225, 0.78);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding-left: 12px;
  border-left: 1px solid rgba(148, 163, 184, 0.30);
  line-height: 1.2;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px 7px 14px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(168, 85, 247, 0.14));
  border: 1px solid rgba(129, 140, 248, 0.42);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: #c7d2fe;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.18), inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.hero-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #a5b4fc;
  box-shadow: 0 0 0 3px rgba(165, 180, 252, 0.20), 0 0 12px rgba(165, 180, 252, 0.7);
  animation: heroTagPulse 2.4s ease-in-out infinite;
}

@keyframes heroTagPulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(165, 180, 252, 0.20), 0 0 12px rgba(165, 180, 252, 0.7); }
  50%      { box-shadow: 0 0 0 6px rgba(165, 180, 252, 0.10), 0 0 18px rgba(165, 180, 252, 0.95); }
}

.hero-creator-subtitle {
  font-size: 14px;
  color: rgba(167, 139, 250, 0.92);
  font-weight: 500;
  margin: 0 0 4px;
  letter-spacing: 0.01em;
}

.hero-headline {
  font-size: clamp(40px, 6.2vw, 64px);
  font-weight: 800;
  line-height: 1.04;
  color: #f8fafc;
  margin: 8px 0 14px;
  letter-spacing: -0.035em;
  text-wrap: balance;
  text-shadow: 0 0 60px rgba(99, 102, 241, 0.18);
}

.hero-headline .text-gradient {
  background: linear-gradient(120deg, #818cf8 0%, #c084fc 50%, #f0abfc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-headline .text-gradient:empty {
  display: none;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.6;
  color: rgba(203, 213, 225, 0.82);
  margin: 0 auto 22px;
  max-width: 540px;
  text-wrap: pretty;
}

.hero-sellpoints {
  list-style: none;
  padding: 0;
  margin: 0 0 32px 0;
  max-width: 520px;
}

.hero-sellpoints li {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(226, 232, 240, 0.72);
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.sellpoint-icon {
  color: #6366f1;
  font-size: 10px;
  flex-shrink: 0;
  margin-top: 6px;
}

/* Upload Button */
/* Hero Upload CTA — 单按钮形态：图标 + 标题 + 格式提示 */
.hero-upload {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 520px;
  padding: 38px 36px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.22) 0%, rgba(168, 85, 247, 0.18) 50%, rgba(15, 23, 42, 0.72) 100%);
  border: 1px solid rgba(99, 102, 241, 0.42);
  border-radius: 18px;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background 0.3s ease;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow:
    0 18px 50px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(99, 102, 241, 0.10),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
  text-align: center;
  color: #e5e7eb;
}

.hero-upload::before {
  content: "";
  position: absolute;
  inset: -2px;
  background: radial-gradient(600px 160px at 20% 0%, rgba(255, 255, 255, 0.10), transparent 55%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.hero-upload::after {
  content: "";
  position: absolute;
  top: -40%;
  left: -60%;
  width: 140%;
  height: 160%;
  background: linear-gradient(120deg, transparent 35%, rgba(255, 255, 255, 0.12) 48%, transparent 62%);
  transform: translateX(-18%) rotate(6deg);
  opacity: 0;
  transition: transform 0.65s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.35s ease;
  pointer-events: none;
}

.hero-upload:hover {
  border-color: rgba(129, 140, 248, 0.85);
  transform: translateY(-3px);
  box-shadow:
    0 26px 70px rgba(99, 102, 241, 0.28),
    0 0 0 1px rgba(99, 102, 241, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.hero-upload:hover::before {
  opacity: 0.95;
}

.hero-upload:hover::after {
  opacity: 0.85;
  transform: translateX(40%) rotate(6deg);
}

.hero-upload:active {
  transform: translateY(-1px) scale(0.995);
}

.hero-upload.is-dragging {
  border-color: rgba(56, 189, 248, 0.95);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.18) 0%, rgba(99, 102, 241, 0.20) 100%);
  box-shadow:
    0 0 0 2px rgba(56, 189, 248, 0.45),
    0 24px 60px rgba(56, 189, 248, 0.22);
}

.hero-upload-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.35), rgba(168, 85, 247, 0.35));
  color: #f8fafc;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.35), inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.hero-upload-icon svg {
  width: 28px;
  height: 28px;
}

.hero-upload .upload-text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #f8fafc;
  margin-bottom: 0;
  line-height: 1.2;
}

.hero-upload .upload-hint {
  font-size: 14px;
  font-weight: 500;
  color: rgba(203, 213, 225, 0.82);
  margin-bottom: 0;
  line-height: 1.5;
}

.hero-upload .upload-hint-psd-soon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(167, 139, 250, 0.12);
  border: 1px solid rgba(167, 139, 250, 0.32);
  color: #c4b5fd;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.hero-upload-beta-row {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 2px;
}

.hero-upload .upload-hint-psd-soon::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #c4b5fd;
  box-shadow: 0 0 8px rgba(196, 181, 253, 0.85);
}

/* Hero Video */
.hero-video {
  position: absolute;
  right: 4%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  display: none;
}

@media (min-width: 1200px) {
  .hero-video {
    display: block;
  }
}

/* 仅手机端：演示视频移到上传区下方；电脑端保持右侧 */
@media (max-width: 767px) {
  .hero-video {
    display: block !important;
    position: static;
    transform: none;
    margin-top: 32px;
    width: 100%;
    max-width: 560px;
  }

  .hero-full {
    flex-direction: column;
    justify-content: center;
  }

  .hero-video .video-frame {
    width: 100%;
    margin: 0 auto;
  }
}

.video-frame {
  position: relative;
  width: 770px;
  aspect-ratio: 16/9;
  isolation: isolate;
}

.video-placeholder {
  width: 100%;
  height: 100%;
  border-radius: var(--lp-surface-radius, 18px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.video-placeholder:not(.lp-surface) {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.75), rgba(15, 23, 42, 0.9));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.play-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.play-icon:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.12);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.play-icon:active {
  transform: scale(1.02);
}

.play-icon svg {
  width: 34px;
  height: 34px;
  color: white;
  margin-left: 4px;
}

.video-label {
  font-size: 17px;
  font-weight: 500;
  color: rgba(226, 232, 240, 0.75);
}

.video-placeholder .lp-placeholder-hint {
  font-size: 14px;
  font-weight: 600;
  color: rgba(148, 163, 184, 0.85);
  letter-spacing: 0.06em;
  margin-top: 6px;
}

.video-glow {
  position: absolute;
  inset: -20px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(168, 85, 247, 0.2));
  border-radius: 24px;
  z-index: -1;
  filter: blur(40px);
}

/* Scroll Hint */
.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(148, 163, 184, 0.9);
  font-size: 13px;
  animation: bounce 2s ease-in-out infinite;
}

.scroll-hint svg {
  width: 20px;
  height: 20px;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========================================
   Demo Section
   ======================================== */

.demo-section {
  padding: 120px 32px;
  background: linear-gradient(180deg, rgba(2,6,23,0.0) 0%, rgba(2,6,23,0.25) 15%, rgba(2,6,23,0.45) 100%);
}

.demo-container {
  max-width: 1000px;
  margin: 0 auto;
}

.demo-header {
  text-align: center;
  margin-bottom: 48px;
}

.demo-header h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
}

.demo-header p {
  font-size: 17px;
  color: rgba(226, 232, 240, 0.7);
}

.demo-video-large {
  margin-bottom: 48px;
}

.video-placeholder-large {
  aspect-ratio: 16/9;
  max-width: 800px;
  margin: 0 auto;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
}

.play-btn-large {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.play-btn-large:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 40px rgba(99, 102, 241, 0.5);
}

.play-btn-large svg {
  width: 36px;
  height: 36px;
  color: white;
  margin-left: 4px;
}

.video-info {
  text-align: center;
}

.video-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: white;
  margin-bottom: 4px;
}

.video-duration {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* Demo Steps */
.demo-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 12px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.step-num {
  font-size: 28px;
  font-weight: 800;
  color: rgba(165, 180, 252, 0.95);
  letter-spacing: -0.02em;
}

.step-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 2px;
}

.step-content p {
  font-size: 13px;
  color: rgba(203, 213, 225, 0.85);
}

.step-arrow {
  color: rgba(148, 163, 184, 0.6);
}

.step-arrow svg {
  width: 24px;
  height: 24px;
}

/* ========================================
   Features Section
   ======================================== */

.features-section {
  padding: 100px 32px;
  background: linear-gradient(180deg, rgba(2,6,23,0.45) 0%, rgba(2,6,23,0.62) 100%);
  position: relative;
  overflow: visible;
}

.features-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(99, 102, 241, 0.06) 1px, transparent 1px);
  background-size: 120px 100%;
  mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,1) 10%, rgba(0,0,0,1) 90%, transparent 100%);
  pointer-events: none;
  opacity: 0.5;
  z-index: 0;
}

.features-section::after {
  content: '';
  position: absolute;
  bottom: 10%;
  right: 8%;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(99, 102, 241, 0.12);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.features-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 0; /* 预留光效溢出空间 */
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: minmax(200px, auto);
  gap: 24px;
  position: relative;
  z-index: 1;
  overflow: visible;
}

@media (max-width: 980px) {
  .features-container {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: auto;
    min-height: 0;
  }
}

@media (max-width: 620px) {
  .features-container {
    grid-template-columns: 1fr;
  }
}

.features-section .feature-card {
  min-height: 200px;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.feature-card {
  background: var(--lp-card-bg);
  border: 1px solid var(--lp-card-border);
  border-radius: 16px;
  padding: 28px;
  position: relative;
  transition: all 0.3s ease;
  overflow: visible; /* 允许 hover 光效（::before 光晕、icon::after、box-shadow）溢出，避免割裂 */
  backdrop-filter: blur(var(--orb-glass-blur));
  -webkit-backdrop-filter: blur(var(--orb-glass-blur));
}

/* 多说话人识别：有质感的光效突出 */
.feature-card-highlight {
  border-color: rgba(129, 140, 248, 0.28);
  box-shadow:
    0 0 0 1px rgba(129, 140, 248, 0.12),
    0 20px 40px rgba(0, 0, 0, 0.2),
    0 0 60px -12px rgba(129, 140, 248, 0.25);
}

.feature-card-highlight::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 80% at 50% -20%, rgba(129, 140, 248, 0.22), transparent 55%),
    radial-gradient(ellipse 80% 60% at 100% 100%, rgba(99, 102, 241, 0.12), transparent 50%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.06) 0%, transparent 45%);
  pointer-events: none;
}

.feature-card-highlight .feature-icon {
  border-color: rgba(129, 140, 248, 0.38);
  box-shadow:
    0 0 0 1px rgba(129, 140, 248, 0.2),
    0 12px 32px rgba(0, 0, 0, 0.25),
    0 0 28px -4px rgba(129, 140, 248, 0.35);
  background: rgba(99, 102, 241, 0.12);
}

.feature-card-highlight:hover {
  border-color: rgba(129, 140, 248, 0.4);
  box-shadow:
    0 0 0 1px rgba(129, 140, 248, 0.18),
    0 24px 48px rgba(0, 0, 0, 0.22),
    0 0 80px -10px rgba(129, 140, 248, 0.35);
}

.feature-card-highlight:hover .feature-icon {
  box-shadow:
    0 0 0 1px rgba(129, 140, 248, 0.3),
    0 14px 36px rgba(0, 0, 0, 0.28),
    0 0 36px -2px rgba(129, 140, 248, 0.45);
}

.feature-card-adv::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(520px 220px at 16% 0%, rgba(129, 140, 248, 0.24), transparent 62%),
    radial-gradient(520px 240px at 92% 18%, rgba(56, 189, 248, 0.10), transparent 60%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 40%);
  opacity: 0.82;
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-6px) perspective(800px) rotateX(0.5deg);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(99, 102, 241, 0.03);
}

.features-section .feature-card:hover::after {
  opacity: 0.75;
  transform: translateX(46%) rotate(8deg);
}

.feature-card:hover .feature-icon {
  transform: scale(1.08);
}

.feature-icon {
  transition: transform 0.3s ease;
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: rgba(2, 6, 23, 0.35);
  border: 1px solid var(--orb-glass-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(calc(var(--orb-glass-blur) - 4px));
  -webkit-backdrop-filter: blur(calc(var(--orb-glass-blur) - 4px));
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: rgba(248, 250, 252, 0.96);
}

.feature-card-adv .feature-icon {
  border-color: rgba(129, 140, 248, 0.34);
  box-shadow:
    0 18px 56px rgba(0, 0, 0, 0.34),
    0 0 0 4px rgba(99, 102, 241, 0.10);
}

.feature-icon.variant-a {
  background: rgba(99, 102, 241, 0.16);
  border-color: rgba(99, 102, 241, 0.22);
}

.feature-icon.variant-b {
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.22);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--lp-text-muted);
  margin-bottom: 16px;
}

.features-section .feature-card h3 {
  letter-spacing: -0.01em;
}

.features-section .feature-card p {
  line-height: 1.65;
}

.feature-coming {
  font-size: 12px;
  color: rgba(129, 140, 248, 0.9);
  font-weight: 600;
  margin-left: 2px;
}

.features-section .feature-card .feature-psd-soon {
  margin: 0.4rem 0 0;
  font-size: 12px;
  line-height: 1.45;
  color: rgba(167, 139, 250, 0.95);
  font-weight: 600;
}

.feature-source {
  font-size: 12px;
  color: rgba(148, 163, 184, 0.85);
}

/* ========================================
   Compare Section
   ======================================== */

.compare-section {
  padding: 100px 32px;
  background: linear-gradient(180deg, rgba(2,6,23,0.70) 0%, rgba(2,6,23,0.82) 100%);
  position: relative;
}

.compare-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(99, 102, 241, 0.04) 20px, rgba(99, 102, 241, 0.04) 21px);
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, rgba(0,0,0,1) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.6;
  z-index: 0;
}

.compare-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.compare-container h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 8px;
}

.compare-container > p {
  font-size: 17px;
  color: rgba(226, 232, 240, 0.72);
  margin-bottom: 48px;
}

.compare-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.compare-card {
  flex: 1;
  min-width: 280px;
  max-width: 360px;
}

.compare-video {
  aspect-ratio: 16/9;
  margin-bottom: 16px;
}

.video-placeholder-compare {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e293b, #334155);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.video-placeholder-compare:hover {
  transform: scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.video-placeholder-compare svg {
  width: 48px;
  height: 48px;
  color: white;
  opacity: 0.8;
}

.compare-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.7);
}

.label-tag {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
}

.label-tag.original {
  background: rgba(99, 102, 241, 0.1);
  color: #6366f1;
}

.label-tag.cloned {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

.compare-arrow {
  color: #cbd5e1;
}

.compare-arrow svg {
  width: 32px;
  height: 32px;
}

.compare-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.compare-note svg {
  width: 18px;
  height: 18px;
  color: #f59e0b;
}

/* ========================================
   Languages Section
   ======================================== */

.langs-section {
  padding: 100px 32px;
  background: linear-gradient(180deg, rgba(2,6,23,0.78) 0%, rgba(99,102,241,0.08) 70%, rgba(168,85,247,0.06) 100%);
  position: relative;
  z-index: 2;
}

.langs-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 3;
}

.langs-container h2 {
  font-size: 32px;
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
}

.langs-subtitle {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.lang-tag-highlight {
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.langs-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  box-sizing: border-box;
}

.lang-tag {
  padding: 10px 18px;
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(226, 232, 240, 0.88);
  transition: all 0.2s ease;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.lang-tag:hover {
  background: rgba(99, 102, 241, 0.14);
  border-color: rgba(99, 102, 241, 0.35);
  transform: translateY(-2px);
}

.langs-footnote {
  text-align: center;
  font-size: 13px;
  color: rgba(148, 163, 184, 0.85);
  margin-top: 20px;
  margin-bottom: 0;
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
  padding: 120px 32px;
  background: linear-gradient(180deg, rgba(2,6,23,0.78) 0%, rgba(2,6,23,0.88) 100%);
}

.cta-container {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-container h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
}

.cta-container p {
  font-size: 17px;
  color: rgba(226, 232, 240, 0.72);
  margin-bottom: 32px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.cta-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.cta-btn:active {
  transform: translateY(-2px) scale(0.98);
}

.cta-btn svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Growth Calculator Easter Eggs (Enhanced)
   ======================================== */

.growth-calculator.has-easter {
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 8px 40px rgba(99, 102, 241, 0.2);
}

.growth-easter-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.1));
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 16px;
  overflow: hidden;
}

.easter-emoji {
  font-size: 48px;
  margin-bottom: 12px;
  animation: easter-emoji-bounce 0.6s ease-out;
}

@keyframes easter-emoji-bounce {
  0% { transform: scale(0) rotate(-20deg); opacity: 0; }
  50% { transform: scale(1.3) rotate(10deg); }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

.easter-content {
  text-align: center;
  z-index: 1;
}

.easter-message {
  font-size: 20px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 4px;
  animation: easter-text-pop 0.5s ease-out 0.2s both;
}

.easter-sub {
  font-size: 14px;
  color: rgba(226, 232, 240, 0.7);
  animation: easter-text-pop 0.5s ease-out 0.3s both;
}

@keyframes easter-text-pop {
  0% { transform: translateY(10px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

.easter-progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(15, 23, 42, 0.3);
  border-radius: 2px;
  margin-top: 16px;
  overflow: hidden;
}

.easter-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #6366f1, #a855f7, #ec4899);
  border-radius: 2px;
  transition: width 0.5s ease-out;
  animation: progress-glow 2s ease-in-out infinite;
}

@keyframes progress-glow {
  0%, 100% { box-shadow: 0 0 5px rgba(99, 102, 241, 0.5); }
  50% { box-shadow: 0 0 15px rgba(168, 85, 247, 0.8); }
}

.easter-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.easter-particles .particle {
  position: absolute;
  font-size: 16px;
  animation: particle-float 2s ease-in-out infinite;
  animation-delay: var(--delay);
}

.easter-particles .particle:nth-child(1) { left: 10%; top: 20%; }
.easter-particles .particle:nth-child(2) { left: 25%; top: 70%; }
.easter-particles .particle:nth-child(3) { left: 50%; top: 10%; }
.easter-particles .particle:nth-child(4) { left: 70%; top: 60%; }
.easter-particles .particle:nth-child(5) { left: 85%; top: 30%; }
.easter-particles .particle:nth-child(6) { left: 40%; top: 80%; }

@keyframes particle-float {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.6; }
  50% { transform: translateY(-15px) rotate(180deg); opacity: 1; }
}

/* Easter Egg Effects */
.growth-easter-container.cosmic {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.15), rgba(236, 72, 153, 0.1));
  animation: cosmic-pulse 1.5s ease-in-out infinite;
}

@keyframes cosmic-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.3); }
  50% { box-shadow: 0 0 40px rgba(168, 85, 247, 0.5); }
}

.growth-easter-container.explosion {
  animation: explosion-shake 0.5s ease-out;
}

@keyframes explosion-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px) rotate(-1deg); }
  40% { transform: translateX(5px) rotate(1deg); }
  60% { transform: translateX(-3px) rotate(-0.5deg); }
  80% { transform: translateX(3px) rotate(0.5deg); }
}

.growth-easter-container.shake {
  animation: shake-effect 0.4s ease-out;
}

@keyframes shake-effect {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

.growth-easter-container.float .easter-emoji {
  animation: float-emoji 2s ease-in-out infinite;
}

@keyframes float-emoji {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.growth-easter-container.pulse {
  animation: pulse-effect 1s ease-in-out;
}

@keyframes pulse-effect {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

.growth-easter-container.bounce .easter-emoji {
  animation: bounce-emoji 0.6s ease-out infinite;
}

@keyframes bounce-emoji {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Input Easter State */
.growth-input.input-easter {
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Easter Fade Transition */
.easter-fade-enter-active {
  animation: easter-enter 0.5s ease-out;
}

.easter-fade-leave-active {
  animation: easter-leave 0.3s ease-in;
}

@keyframes easter-enter {
  0% { transform: scale(0.8) translateY(-20px); opacity: 0; }
  100% { transform: scale(1) translateY(0); opacity: 1; }
}

@keyframes easter-leave {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0; }
}

/* ========================================
   Header Styles (Premium)
   ======================================== */

:root {
  /* 含上传页副标题折行时顶栏占位，避免 #app 主区被遮挡或与顶栏切换时大幅跳动 */
  --app-header-offset: 90px;
}

.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 11000;
  isolation: isolate;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Reserve space for fixed header */
#app {
  padding-top: var(--app-header-offset);
}

body.app-theme-dark .app-header {
  background: rgba(2, 6, 23, 0.62);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    0 10px 32px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px 24px 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  box-sizing: border-box;
}

.brand {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

/* 顶栏显目标签：内测中 */
.header-free-beta-pill {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: 0.4rem;
  background: linear-gradient(135deg, #10b981, #059669);
  color: #f0fdf4;
  box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.5);
  white-space: nowrap;
  line-height: 1.2;
}

body.app-theme-dark .header-free-beta-pill {
  background: linear-gradient(135deg, #059669, #047857);
  box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.4);
}

.brand:hover {
  opacity: 0.85;
}

.brand:hover .logo-svg {
  transform: scale(1.08);
}

.logo-wrapper {
  width: 36px;
  height: 36px;
  position: relative;
  flex-shrink: 0;
}

.logo-svg {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 8px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.brand-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-width: 0;
}

.brand-name {
  font-size: 18px;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.brand-tagline {
  font-size: 10px;
  color: #94a3b8;
  letter-spacing: 0.02em;
  line-height: 1;
  text-align: left;
}

body.app-theme-dark .brand-tagline {
  color: rgba(148, 163, 184, 0.78);
}

.nav-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 14px;
  min-width: 0;
}

.nav-breadcrumb--with-lane {
  align-items: center;
}

/* 单线路起点 pill（首页流 / 草稿流分列，互不并排「抢视线」） */
.nav-breadcrumb--lane-solo {
  gap: 12px;
}

/* 主面包屑 + 旁路草稿/上传（语义分离） */
.nav-cluster {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 18px;
  flex: 1;
  min-width: 0;
  justify-content: flex-start;
}

.nav-cluster-main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  min-width: 0;
  flex: 1;
}

@media (min-width: 768px) {
  .nav-cluster-main {
    /* 与副标题行组合时保持顶栏垂直占位稳定，减轻路由切换时抖动 */
    min-height: 52px;
    justify-content: center;
  }
}

.nav-upload-hint {
  margin: 0;
  padding: 0 2px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.35;
  color: #64748b;
  max-width: min(420px, 100%);
}

body.app-theme-dark .nav-upload-hint {
  color: rgba(148, 163, 184, 0.92);
}

/* 手机端：辅助文案隐藏；具体折行/占位见 mobile.css + syncAppHeaderOffset.js */
@media (max-width: 767px) {
  .brand-tagline,
  .nav-upload-hint,
  .nav-cross-sub {
    display: none;
  }
}

.nav-cross-link {
  flex-shrink: 0;
}

.nav-cross-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px dashed rgba(100, 116, 139, 0.42);
  background: rgba(248, 250, 252, 0.72);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  text-align: left;
  max-width: 220px;
  -webkit-tap-highlight-color: transparent;
}

@media (max-width: 767px) {
  .nav-cross-btn {
    flex-direction: row;
    align-items: center;
    padding: 6px 10px;
    max-width: none;
  }
}

.nav-cross-main {
  font-size: 13px;
  font-weight: 700;
  color: #475569;
  letter-spacing: 0.02em;
}

.nav-cross-sub {
  font-size: 10px;
  font-weight: 500;
  color: #94a3b8;
  line-height: 1.25;
}

.nav-cross-btn:hover {
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.07);
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.12);
}

.nav-cross-btn--muted {
  border-style: solid;
  border-color: rgba(148, 163, 184, 0.38);
}

body.app-theme-dark .nav-cross-btn {
  background: rgba(15, 23, 42, 0.58);
  border-color: rgba(148, 163, 184, 0.22);
}

body.app-theme-dark .nav-cross-btn:hover {
  border-color: rgba(129, 140, 248, 0.45);
  box-shadow: 0 2px 14px rgba(99, 102, 241, 0.2);
}

body.app-theme-dark .nav-cross-main {
  color: #e2e8f0;
}

body.app-theme-dark .nav-cross-sub {
  color: rgba(148, 163, 184, 0.88);
}

.nav-lane-root--solo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-lane-root-pill {
  appearance: none;
  border: none;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #4338ca;
  background: linear-gradient(145deg, rgba(99, 102, 241, 0.14), rgba(34, 211, 238, 0.16));
  border: 1px solid rgba(99, 102, 241, 0.32);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  transition: color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}

.nav-lane-root-pill:hover {
  color: #3730a3;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.2);
}

body.app-theme-dark .nav-lane-root-pill {
  color: #e0e7ff;
  background: linear-gradient(145deg, rgba(99, 102, 241, 0.28), rgba(34, 211, 238, 0.14));
  border-color: rgba(129, 140, 248, 0.38);
  box-shadow: none;
}

body.app-theme-dark .nav-lane-root-pill:hover {
  color: #fff;
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.28);
}

/* 顶栏：首页 / 草稿 线路切换（仅 Header） */
.nav-lane-switch {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 0;
  padding: 3px;
  border-radius: 9999px;
  background: rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.28);
}

body.app-theme-dark .nav-lane-switch {
  background: rgba(15, 23, 42, 0.45);
  border-color: rgba(148, 163, 184, 0.18);
}

.nav-lane-tab {
  appearance: none;
  border: none;
  background: transparent;
  padding: 6px 12px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  color: #64748b;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}

body.app-theme-dark .nav-lane-tab {
  color: rgba(148, 163, 184, 0.85);
}

.nav-lane-tab:hover {
  color: #6366f1;
  background: rgba(99, 102, 241, 0.08);
}

body.app-theme-dark .nav-lane-tab:hover {
  color: #e2e8f0;
  background: rgba(99, 102, 241, 0.12);
}

.nav-lane-tab.is-active {
  color: #4f46e5;
  background: rgba(99, 102, 241, 0.14);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.2);
}

body.app-theme-dark .nav-lane-tab.is-active {
  color: #c7d2fe;
  background: rgba(99, 102, 241, 0.22);
  box-shadow: none;
}

.nav-lane-slash {
  padding: 0 1px;
  font-size: 13px;
  font-weight: 500;
  color: #cbd5e1;
  user-select: none;
}

body.app-theme-dark .nav-lane-slash {
  color: rgba(148, 163, 184, 0.45);
}

/* 顶栏主导航：首页 → 草稿 → 上传 及流程尾（.nav-arrow 为分隔） */
.nav-segmented {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  padding: 3px;
  border-radius: 9999px;
  background: rgba(15, 23, 42, 0.05);
  border: 1px solid rgba(148, 163, 184, 0.28);
  gap: 1px;
}

body.app-theme-dark .nav-segmented {
  background: rgba(15, 23, 42, 0.4);
  border-color: rgba(148, 163, 184, 0.14);
}

.nav-item-seg {
  -webkit-tap-highlight-color: transparent;
}

.nav-seg-gap {
  display: block;
  width: 1px;
  min-width: 1px;
  height: 14px;
  background: rgba(148, 163, 184, 0.4);
  flex-shrink: 0;
}

body.app-theme-dark .nav-seg-gap {
  background: rgba(148, 163, 184, 0.25);
}

.nav-item-seg.active {
  color: #4f46e5;
  background: rgba(99, 102, 241, 0.14);
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

body.app-theme-dark .nav-item-seg.active {
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.2);
  box-shadow: none;
}

.nav-flow-tail {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: #94a3b8;
  font-weight: 500;
  letter-spacing: 0.02em;
  min-width: 0;
}

body.app-theme-dark .nav-flow-tail {
  color: rgba(148, 163, 184, 0.75);
}

.nav-flow-dot {
  color: #cbd5e1;
  font-weight: 400;
  user-select: none;
}

body.app-theme-dark .nav-flow-dot {
  color: rgba(148, 163, 184, 0.45);
}

.nav-flow-step {
  white-space: nowrap;
}

.nav-flow-step--current {
  color: #6366f1;
  font-weight: 600;
}

body.app-theme-dark .nav-flow-step--current {
  color: #a5b4fc;
}

.nav-item {
  color: #64748b;
  cursor: pointer;
  transition: color 0.2s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  padding: 6px 10px;
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid transparent;
  background: transparent;
  -webkit-tap-highlight-color: transparent;
}

body.app-theme-dark .nav-item {
  color: rgba(148, 163, 184, 0.90);
}

.nav-item:hover {
  color: #6366f1;
  background: rgba(99, 102, 241, 0.05);
}

body.app-theme-dark .nav-item:hover {
  background: rgba(99, 102, 241, 0.10);
}

.nav-item:focus-visible {
  outline: none;
  border-color: rgba(99, 102, 241, 0.45);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.18);
}

.nav-item.active {
  color: #4f46e5;
  font-weight: 700;
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.28);
  box-shadow: inset 0 -2px 0 0 rgba(99, 102, 241, 0.55);
}

body.app-theme-dark .nav-item.active {
  color: #c7d2fe;
  background: rgba(99, 102, 241, 0.2);
  border-color: rgba(129, 140, 248, 0.35);
  box-shadow: inset 0 -2px 0 0 rgba(165, 180, 252, 0.65);
}

/* 顶栏「账户」：深浅色可读 + 当前页态 */
.header-auth-entry {
  appearance: none;
  margin-right: 8px;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(248, 250, 252, 0.95);
  color: #475569;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}

.header-auth-entry:hover {
  color: #4338ca;
  border-color: rgba(99, 102, 241, 0.45);
  background: rgba(99, 102, 241, 0.08);
}

.header-auth-entry:focus-visible {
  outline: none;
  border-color: rgba(99, 102, 241, 0.55);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.header-auth-entry.is-active {
  color: #4f46e5;
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.1);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.22);
}

body.app-theme-dark .header-auth-entry {
  border-color: rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.55);
  color: #e2e8f0;
}

body.app-theme-dark .header-auth-entry:hover {
  color: #e0e7ff;
  border-color: rgba(129, 140, 248, 0.45);
  background: rgba(99, 102, 241, 0.15);
}

body.app-theme-dark .header-auth-entry.is-active {
  color: #c7d2fe;
  border-color: rgba(129, 140, 248, 0.55);
  background: rgba(99, 102, 241, 0.22);
  box-shadow: 0 0 0 1px rgba(129, 140, 248, 0.35);
}

.nav-arrow {
  width: 16px;
  height: 16px;
  color: #cbd5e1;
}

body.app-theme-dark .nav-arrow {
  color: rgba(148, 163, 184, 0.55);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.error-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 8px;
  font-size: 13px;
  color: #ef4444;
}

.error-badge svg {
  width: 16px;
  height: 16px;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(168, 85, 247, 0.03));
  border: 1px solid rgba(99, 102, 241, 0.1);
  border-radius: 10px;
  font-size: 13px;
}

body.app-theme-dark .status-badge {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(168, 85, 247, 0.07));
  border-color: rgba(99, 102, 241, 0.18);
  box-shadow: 0 18px 56px rgba(0, 0, 0, 0.22);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: statusPulse 2s ease-in-out infinite;
}

.status-dot.online {
  background: #22c55e;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.status-dot.offline {
  background: #f59e0b;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.status-text {
  font-weight: 500;
  color: rgba(226, 232, 240, 0.86);
}

.status-gpu {
  color: rgba(148, 163, 184, 0.85);
  font-size: 12px;
}

/* ========================================
   Premium Decorations
   ======================================== */

.hero-full::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.3), transparent);
}

.section-divider {
  height: 1px;
  position: relative;
  background: linear-gradient(90deg, transparent, var(--lp-divider, rgba(148, 163, 184, 0.22)), transparent);
  margin: 0 auto;
  max-width: min(820px, calc(100vw - 48px));
  opacity: 0.35;
}

.section-divider::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.10), transparent);
  filter: blur(0.5px);
  opacity: 0;
  transform: translateX(-50%);
  animation: orbDividerSweep 12s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
  pointer-events: none;
}

.section-divider:hover::after {
  opacity: 0.12;
}

@keyframes orbDividerSweep {
  0% { transform: translateX(-50%) translateX(-18%); opacity: 0; }
  15% { opacity: 0.22; }
  50% { opacity: 0.22; }
  85% { opacity: 0; }
  100% { transform: translateX(-50%) translateX(18%); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .section-divider::after {
    animation: none;
  }
}

/* Floating particles animation */
@keyframes floatParticle {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.3; }
  50% { transform: translateY(-20px) rotate(180deg); opacity: 0.6; }
}

/* Glass morphism cards */
.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* Gradient text animation */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.animated-gradient {
  background: linear-gradient(135deg, #6366f1, #a855f7, #ec4899, #6366f1);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 5s ease infinite;
}

/* ========================================
   Compare Section Pro (Advanced Design)
   ======================================== */

.compare-section-pro {
  padding: clamp(64px, 8vw, 88px) clamp(20px, 4vw, 32px);
  background: transparent;
}

.compare-pro-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.lp-detail-panel .compare-pro-container {
  max-width: none;
}

@media (max-width: 1024px) {
  .compare-pro-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.compare-pro-header {
  grid-column: 1 / -1;
  text-align: center;
  margin-bottom: 40px;
}

.compare-pro-header h2 {
  font-size: 40px;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.compare-pro-header p {
  font-size: 18px;
  color: rgba(226, 232, 240, 0.72);
}

/* Demo Player */
.demo-player-wrapper {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.demo-player {
  width: 100%;
  max-width: 720px;
}

.lp-compare-left .demo-player {
  max-width: none;
}

.video-screen {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.video-screen:hover {
  box-shadow: 0 50px 100px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(99, 102, 241, 0.2);
  transform: translateY(-4px);
}

.video-screen.is-playing {
  box-shadow: 0 50px 100px rgba(99, 102, 241, 0.35), 0 0 0 2px rgba(99, 102, 241, 0.4);
}

.video-content {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-poster {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(168, 85, 247, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
}

.poster-gradient {
  position: absolute;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.25); opacity: 0.9; }
}

.play-btn-main {
  width: 100px;
  height: 100px;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.play-btn-main:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: scale(1.12);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.3);
  border-color: rgba(255, 255, 255, 0.4);
}

.play-btn-main svg {
  width: 44px;
  height: 44px;
  color: white;
  margin-left: 0;
}

.video-overlay {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px 24px;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.overlay-label {
  font-size: 14px;
  font-weight: 600;
  color: white;
}

/* Language Switcher */
.language-switcher {
  width: 100%;
  max-width: 520px;
}

.lang-label {
  font-size: 14px;
  font-weight: 700;
  color: rgba(226, 232, 240, 0.80);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.lang-dropdown {
  position: relative;
  width: 100%;
}

.lang-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  color: rgba(226, 232, 240, 0.90);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.lang-trigger:hover {
  border-color: rgba(99, 102, 241, 0.55);
  background: rgba(99, 102, 241, 0.10);
}

.lang-trigger-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.lang-trigger-icon {
  opacity: 0.8;
  font-size: 14px;
  line-height: 1;
}

.lang-menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
}

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  padding: 8px;
  border-radius: 16px;
  background: rgba(2, 6, 23, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.lang-option {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.lang-option:hover {
  background: rgba(99, 102, 241, 0.14);
  border-color: rgba(99, 102, 241, 0.25);
}

.lang-option.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.26), rgba(168, 85, 247, 0.16));
  border-color: rgba(99, 102, 241, 0.55);
  color: #f8fafc;
}

.lang-flag {
  font-size: 24px;
}

.lang-name {
  font-size: 15px;
}

.lang-dropdown .lang-flag {
  font-size: 18px;
}

.lang-dropdown .lang-name {
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.demo-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 28px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 14px;
  font-size: 14px;
  font-weight: 500;
  color: #a5b4fc;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.demo-note svg {
  width: 18px;
  height: 18px;
}

/* Audio Compare Section */
.audio-compare-section {
  grid-column: 1 / -1;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 40px;
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  container-type: inline-size;
  position: relative;
}

.audio-compare-section::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(99, 102, 241, 0.06), transparent 60%);
  pointer-events: none;
}

.lp-compare-left .language-switcher {
  max-width: none;
}

.lp-detail-panel {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  container-type: inline-size;
}

.audio-compare-header {
  text-align: center;
  margin-bottom: 24px;
}

.audio-compare-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: rgba(226, 232, 240, 0.9);
  margin-bottom: 0;
  letter-spacing: 0.02em;
}

.audio-compare-header p {
  font-size: 14px;
  color: rgba(226, 232, 240, 0.60);
}

.compare-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 28px;
  justify-content: center;
  flex-wrap: wrap;
}

.lp-compare-right .compare-tabs {
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
  padding-bottom: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.lp-compare-right .compare-tabs::-webkit-scrollbar {
  height: 6px;
}

.lp-compare-right .compare-tabs::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.25);
  border-radius: 999px;
}

.compare-tab {
  padding: 10px 20px;
  background: rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(226, 232, 240, 0.75);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.lp-compare-right .compare-tab {
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  white-space: nowrap;
}

.compare-tab:hover {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.3);
  color: rgba(226, 232, 240, 0.9);
}

.compare-tab.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(168, 85, 247, 0.2));
  border-color: rgba(99, 102, 241, 0.5);
  color: #e0e7ff;
  font-weight: 600;
}

/* Audio Compare Grid - 左卡片 | 中间VS+视频 | 右卡片 */
.audio-compare-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
}

.audio-compare-grid > * {
  min-width: 0;
}

.audio-compare-middle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 0 12px;
}

.audio-compare-middle .vs-divider {
  flex-direction: row;
  gap: 12px;
}

.audio-compare-middle .vs-line {
  width: 40px;
  height: 2px;
}

.audio-compare-middle .vs-text {
  font-size: 20px;
  padding: 8px 16px;
}

.audio-compare-grid .cover-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.audio-compare-grid .cover-card-visual {
  aspect-ratio: 16/9;
  width: 100%;
  max-width: 200px;
  margin: 0 auto;
  background: linear-gradient(135deg, #2c3e50, #2c3e50);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.78);
}

@media (max-width: 1024px) {
  .lp-compare-right .audio-compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .lp-compare-right .vs-divider {
    flex-direction: row;
    gap: 12px;
  }

  .lp-compare-right .vs-line {
    width: 60px;
    height: 2px;
  }
  
  .audio-compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .audio-compare-middle {
    order: -1;
    padding: 0;
  }
}

@container (max-width: 640px) {
  .audio-compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .vs-divider {
    flex-direction: row;
    gap: 12px;
  }

  .vs-line {
    width: 60px;
    height: 2px;
  }
  
  .audio-compare-middle {
    order: -1;
  }
}

@media (max-width: 768px) {
  .audio-compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .vs-divider {
    flex-direction: row;
    gap: 12px;
  }

  .vs-line {
    width: 60px;
    height: 2px;
  }
  
  .audio-compare-middle {
    order: -1;
  }
}

.vs-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 8px;
}

.vs-line {
  width: 2px;
  height: 60px;
  background: linear-gradient(180deg, transparent, rgba(99, 102, 241, 0.6), transparent);
}

.vs-text {
  font-size: 18px;
  font-weight: 900;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding: 6px 14px;
  border-radius: 8px;
  background-color: rgba(99, 102, 241, 0.1);
}

/* Audio Card — 默认布局；视觉由 lp-surface-inset / compare 内规则提供 */
.audio-card {
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  transition: border-color 0.25s ease, transform 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.lp-compare-right .audio-card {
  border-radius: 16px;
}

.audio-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.15);
}

.audio-card.playing {
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.2);
}

.audio-card-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.audio-tag {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.audio-tag.raw {
  background: rgba(148, 163, 184, 0.12);
  color: rgba(226, 232, 240, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.audio-tag.processed {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(168, 85, 247, 0.2));
  color: #c7d2fe;
  border: 1px solid rgba(99, 102, 241, 0.35);
}

.audio-label {
  font-size: 16px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.85);
}

/* Audio Visualizer */
.audio-visualizer {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 5px;
  height: 64px;
  padding: 8px 0;
}

.wave-bar {
  width: 6px;
  background: linear-gradient(180deg, #818cf8, #a78bfa);
  border-radius: 3px;
  transition: height 0.3s ease;
}

.audio-card.playing .wave-bar {
  animation: wave 1s ease-in-out infinite;
}

@keyframes wave {
  0%, 100% { height: 20%; }
  50% { height: 80%; }
}

.audio-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(226, 232, 240, 0.65);
  max-width: 280px;
  margin: 0 auto;
}

/* Audio Play Button */
.audio-play-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 14px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  margin-top: auto;
}

.audio-play-btn:hover {
  background: rgba(99, 102, 241, 0.18);
  border-color: rgba(99, 102, 241, 0.45);
  transform: translateY(-2px);
}

.audio-play-btn svg {
  width: 18px;
  height: 18px;
}

.audio-play-btn.processed {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(168, 85, 247, 0.15));
  border-color: rgba(99, 102, 241, 0.45);
  color: #e0e7ff;
}

.audio-play-btn.processed:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.1));
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

/* ========================================
   Trend Section
   ======================================== */

.trend-section {
  padding: 100px 32px;
  background: linear-gradient(180deg, rgba(2,6,23,0.55) 0%, rgba(2,6,23,0.68) 100%);
  position: relative;
}

.trend-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(99, 102, 241, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(99, 102, 241, 0.08) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(0,0,0,1) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.6;
  z-index: -1;
}

.trend-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 40%, rgba(99, 102, 241, 0.04) 50%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

.trend-section.trend-compact {
  padding: 56px 32px;
}
.trend-compact .trend-container {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.trend-title {
  font-size: 22px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 20px;
  line-height: 1.4;
}
.trend-icons {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.trend-icon-label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.72);
}

.trend-container {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.trend-header {
  text-align: center;
  margin-bottom: 48px;
}

.trend-header h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
}

.trend-header p {
  font-size: 17px;
  color: rgba(226, 232, 240, 0.72);
}

.trend-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.trend-card {
  background: var(--orb-glass-bg);
  border: 1px solid var(--orb-glass-border);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(var(--orb-glass-blur));
  -webkit-backdrop-filter: blur(var(--orb-glass-blur));
  position: relative;
  overflow: hidden;
}

.trend-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 38%);
  opacity: 0.0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.trend-card::after {
  content: "";
  position: absolute;
  top: -40%;
  left: -70%;
  width: 160%;
  height: 170%;
  background: linear-gradient(120deg, transparent 38%, rgba(255, 255, 255, 0.08) 50%, transparent 62%);
  transform: translateX(-12%) rotate(8deg);
  opacity: 0;
  transition: transform 0.75s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.35s ease;
  pointer-events: none;
}

.trend-card:hover {
  transform: translateY(-6px) perspective(800px) rotateX(0.5deg);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(99, 102, 241, 0.03);
}

.trend-card:hover .trend-icon {
  transform: scale(1.08);
}

.trend-icon {
  transition: transform 0.3s ease;
}

.trend-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.trend-icon svg {
  width: 28px;
  height: 28px;
  color: white;
}

.trend-icon.variant-a {
  background: rgba(99, 102, 241, 0.16);
  border-color: rgba(99, 102, 241, 0.22);
}

.trend-icon.variant-b {
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.22);
}

.trend-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 12px;
}

.trend-card p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(226, 232, 240, 0.72);
  margin-bottom: 16px;
}

.trend-source {
  font-size: 12px;
  color: rgba(148, 163, 184, 0.85);
}

/* Placeholder slots - 预留视频/图片/Logo 位 */
.placeholder-slot {
  border: 1px dashed rgba(148, 163, 184, 0.45);
  position: relative;
  background-image:
    linear-gradient(135deg, rgba(99, 102, 241, 0.10), rgba(168, 85, 247, 0.06)),
    radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.12), transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.10), transparent 55%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.placeholder-slot::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    transparent 0%,
    rgba(255, 255, 255, 0.06) 25%,
    rgba(255, 255, 255, 0.02) 50%,
    rgba(255, 255, 255, 0.06) 75%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: placeholderShimmer 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes placeholderShimmer {
  0%, 100% { background-position: 100% 0; }
  50% { background-position: -100% 0; }
}

.placeholder-slot::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.7;
  background:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(circle at 50% 50%, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 68%);
}

/* Success Story Section */
.success-section {
  padding: 88px 32px 100px;
  background: linear-gradient(180deg, rgba(2,6,23,0.55) 0%, rgba(2,6,23,0.72) 100%);
  position: relative;
}

.success-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, rgba(168, 85, 247, 0.12) 0%, transparent 25%),
    radial-gradient(circle at 90% 80%, rgba(99, 102, 241, 0.10) 0%, transparent 25%);
  pointer-events: none;
  z-index: 0;
}

.success-section::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 5%;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(168, 85, 247, 0.15);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.success-header {
  margin-bottom: 40px;
}

.success-container {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.success-header {
  text-align: center;
  margin-bottom: 48px;
}

.success-header h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
}

.success-header p {
  font-size: 17px;
  color: rgba(226, 232, 240, 0.72);
}

.success-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.success-card {
  background: rgba(15, 23, 42, 0.55);
  border-radius: 16px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 0;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.success-card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

@media (max-width: 600px) {
  .success-card {
    grid-template-columns: 1fr;
  }
}

.success-card-visual {
  min-height: 140px;
  background: linear-gradient(135deg, #e0e7ff, #ede9fe);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  text-align: center;
  font-size: 12px;
  color: #6366f1;
}

.success-card-content {
  padding: 24px;
}

.success-card-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 8px;
}

.success-stat {
  font-size: 15px;
  color: #6366f1;
  margin-bottom: 8px;
}

.success-stat strong {
  font-weight: 800;
}

.success-card-content p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(226, 232, 240, 0.72);
  margin-bottom: 8px;
}

.success-source {
  font-size: 11px;
  color: rgba(148, 163, 184, 0.85);
}

/* Growth Calculator Section */
/* 爆表彩蛋时允许数字溢出屏幕：body 解除 overflow-x 限制（故意保留） */
body:has(.growth-result-easter) {
  overflow-x: visible !important;
}

.growth-section {
  padding: 96px 32px;
  background: linear-gradient(180deg, rgba(2,6,23,0.74) 0%, rgba(2,6,23,0.88) 100%);
  position: relative;
  overflow: visible;
}

.growth-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 90% 60% at 50% 40%, rgba(99, 102, 241, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 50% 60%, rgba(168, 85, 247, 0.05) 0%, transparent 60%),
    linear-gradient(45deg, rgba(99, 102, 241, 0.05) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(99, 102, 241, 0.05) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(99, 102, 241, 0.05) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(99, 102, 241, 0.05) 75%);
  background-size: 100% 100%, 100% 100%, 60px 60px, 60px 60px, 60px 60px, 60px 60px;
  background-position: 0 0, 0 0, 0 0, 0 30px, 30px -30px, -30px 0px;
  mask-image: radial-gradient(circle at 50% 50%, rgba(0,0,0,1) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.5;
  z-index: 0;
}

.growth-container {
  max-width: 480px;
  margin: 0 auto;
  position: relative;
  overflow: visible;
}

.growth-calculator {
  padding: 32px;
  overflow: visible;
  position: relative;
  z-index: 1;
}

.growth-header {
  text-align: center;
  margin-bottom: 24px;
}

.growth-header h3 {
  font-size: 22px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 8px;
}

.growth-header p {
  font-size: 14px;
  color: rgba(226, 232, 240, 0.80);
}

.growth-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

@media (max-width: 480px) {
  .growth-form {
    grid-template-columns: 1fr;
  }
}

.growth-input-wrap label,
.growth-select-wrap label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.72);
  margin-bottom: 6px;
}

.growth-input,
.growth-select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--lp-surface-inset-border, rgba(255, 255, 255, 0.10));
  border-radius: 10px;
  font-size: 15px;
  transition: border-color 0.2s ease;
  background: var(--lp-surface-inset-bg, rgba(2, 6, 23, 0.42));
  color: rgba(226, 232, 240, 0.88);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  pointer-events: auto;
  position: relative;
  z-index: 10;
}

.growth-input:focus,
.growth-select:focus {
  outline: none;
  border-color: #6366f1;
}

.growth-result {
  text-align: center;
  padding: 24px 28px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(168, 85, 247, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  overflow: visible;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.growth-result-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(226, 232, 240, 0.65);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.growth-result-value {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, #818cf8, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  overflow: visible;
  word-break: normal;
  text-overflow: clip;
  flex-shrink: 0;
  display: inline-block;
  max-width: none;
  width: auto;
}

/* 爆表彩蛋：允许数字溢出，不换行不裁剪 */
.growth-result-easter {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: visible;
}

.growth-result-easter .growth-result-value {
  font-size: 22px;
}

.growth-easter-msg {
  display: block;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.6);
  font-style: italic;
  letter-spacing: 0.08em;
  margin-top: 12px;
  animation: growth-easter-fade-in 1.2s ease-out forwards;
}

@keyframes growth-easter-fade-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.growth-result-overflow {
  position: relative;
  overflow: visible;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: none;
}

.overflow-bg-text {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: clamp(60px, 20vw, 140px);
  font-weight: 900;
  color: rgba(15, 23, 42, 0.25);
  letter-spacing: 0.05em;
  white-space: nowrap;
  user-select: none;
  z-index: 0;
  animation: overflow-bg-pulse 3s ease-in-out infinite;
}

@keyframes overflow-bg-pulse {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.02); }
}

.overflow-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.overflow-content .growth-result-label {
  color: rgba(226, 232, 240, 0.5);
}

.overflow-content .growth-result-value {
  font-size: 24px;
  opacity: 0.9;
}

.overflow-content .growth-easter-msg {
  font-size: 16px;
  color: rgba(226, 232, 240, 0.75);
  font-weight: 600;
  font-style: normal;
  margin-top: 8px;
}

.growth-placeholder {
  text-align: center;
  padding: 18px 0;
  color: rgba(226, 232, 240, 0.70);
  font-size: 14px;
}

.growth-clear-message {
  text-align: center;
  padding: 32px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(168, 85, 247, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 14px;
  animation: clear-message-pulse 0.5s ease-out;
}

.growth-clear-message span {
  font-size: 18px;
  font-weight: 600;
  background: linear-gradient(135deg, #818cf8, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@keyframes clear-message-pulse {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Cover Compare (mockup) */
.cover-compare-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .cover-compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.cover-card {
  text-align: center;
}

.cover-card-visual {
  aspect-ratio: 16/9;
  max-width: 280px;
  margin: 0 auto 12px;
  background: linear-gradient(135deg, #2c3e50, #2c3e50);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.78);
}

.cover-placeholder-text {
  font-size: 12px;
  opacity: 0.8;
}

.cover-card-label {
  font-size: 13px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.72);
}

.cover-compare-note {
  text-align: center;
  font-size: 13px;
  color: rgba(148, 163, 184, 0.85);
}

/* ========================================
   Footer
   ======================================== */

.site-footer {
  padding: 60px 24px 80px;
  background: transparent;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.68);
}

.footer-brand {
  font-weight: 700;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-divider {
  margin: 0 8px;
  color: #e2e8f0;
}

.footer-legal-link {
  color: rgba(129, 230, 254, 0.95);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.footer-legal-link:hover {
  color: #f8fafc;
}

/* ========================================
   Stats Section
   ======================================== */

.stats-section {
  padding: 80px 32px;
  background: transparent;
  position: relative;
}

.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(99, 102, 241, 0.3) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,1) 20%, rgba(0,0,0,1) 80%, transparent 100%);
  pointer-events: none;
  opacity: 0.22;
  z-index: -1;
}

/* .stats-section::after removed - decorative square */

.stats-section.stats-compact {
  padding: 120px 32px;
}
.stats-compact .stats-container {
  max-width: 1120px;
  margin: 0 auto;
  text-align: center;
}
.stats-footnote {
  text-align: center;
  font-size: 12px;
  color: rgba(148, 163, 184, 0.88);
  margin-top: 32px;
  margin-bottom: 0;
  margin-left: auto;
  margin-right: auto;
  padding: 0 12px;
  background: none;
  border: none;
  border-radius: 0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  display: block;
  max-width: min(100%, 36rem);
  line-height: 1.55;
  white-space: normal;
  word-break: break-word;
}

.stats-container {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.stats-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  width: 100%;
}
@media (max-width: 1024px) {
  .stats-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .stats-grid-3 {
    grid-template-columns: 1fr;
  }
}

.stats-grid-6 {
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .stats-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stats-grid-6 {
    grid-template-columns: 1fr;
  }
}

.stat-item {
  text-align: center;
  padding: 32px 24px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.6), rgba(168, 85, 247, 0.6), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--lp-surface-shadow, var(--orb-glass-shadow)), 0 0 0 1px rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.22);
}

.stat-item:hover::before {
  opacity: 1;
}

.stat-item:hover .stat-number {
  transform: scale(1.08);
}

.stat-number {
  font-size: 48px;
  font-weight: 900;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  display: inline-block;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.88);
  margin-bottom: 4px;
  line-height: 1.45;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}

.stat-label-line2 {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(148, 163, 184, 0.92);
}

.stat-source {
  font-size: 12px;
  color: rgba(148, 163, 184, 0.85);
}

/* ========================================
   CTA Section (Updated)
   ======================================== */

.cta-section {
  padding: clamp(64px, 8vw, 88px) clamp(20px, 4vw, 32px);
  background: transparent;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 200px;
  background: radial-gradient(ellipse 100% 100% at 50% 100%, rgba(99, 102, 241, 0.08), transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

.cta-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(180deg, transparent 85%, rgba(99, 102, 241, 0.04) 100%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

.cta-container {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-container h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 12px;
}

.cta-container p {
  font-size: 17px;
  color: rgba(226, 232, 240, 0.72);
  margin-bottom: 32px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.cta-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.cta-btn:active {
  transform: translateY(-2px) scale(0.98);
}

.cta-btn svg {
  width: 20px;
  height: 20px;
}

/* ── FAQ ──────────────────────────────────────────────────── */
.lp-faq-list {
  border-radius: 16px;
  overflow: hidden;
  margin-top: 32px;
}

.lp-faq-item {
  border-bottom: 1px solid rgba(99, 102, 241, 0.12);
}

.lp-faq-item:last-child {
  border-bottom: none;
}

.lp-faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  list-style: none;
  color: #cbd5e1;
  transition: background 0.15s;
}

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

.lp-faq-q::before {
  content: '+';
  font-size: 18px;
  font-weight: 700;
  color: #818cf8;
  transition: transform 0.2s;
  flex-shrink: 0;
}

details[open] .lp-faq-q::before {
  transform: rotate(45deg);
}

.lp-faq-q:hover {
  background: rgba(99, 102, 241, 0.06);
}

.lp-faq-a {
  padding: 0 24px 20px 48px;
  font-size: 14px;
  line-height: 1.7;
  color: #cbd5e1;
}

.lp-faq-disclaimer {
  margin-top: 16px;
  font-size: 12px;
  color: #64748b;
  line-height: 1.6;
}