/* 首页:普通滚动页,配色沿用 clone.css 的主题变量 */
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
.lp {
  --ink: #161242;
  --ink-soft: #5d5a78;
  --line: #e7e5f4;
  --tint: #f6f5fd;
  background: #fff;
  color: var(--ink);
  font-size: 16px;
}
.lp-wrap { width: min(1200px, 100%); margin: 0 auto; padding: 0 32px; }
.lp h1, .lp h2, .lp h3, .lp p { margin: 0; }

.lp-btn { display: inline-flex; align-items: center; justify-content: center; height: 52px; padding: 0 28px; border-radius: 12px; font-size: 16px; font-weight: 700; transition: transform .2s, box-shadow .2s, background .2s; }
.lp-btn:hover { transform: translateY(-1px); }
.lp-btn:focus-visible, .lp a:focus-visible { outline: 2px solid #5b4cee; outline-offset: 3px; }
.lp-btn-sm { height: 40px; padding: 0 18px; border-radius: 10px; font-size: 14px; }
.lp-btn-primary { background: var(--brand-gradient); color: #fff; box-shadow: 0 10px 22px rgba(91, 76, 238, .24); }
.lp-btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.lp-btn-ghost:hover { background: var(--tint); }
.lp-btn-light { background: #fff; color: var(--ink); }

.lp-nav { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, .86); backdrop-filter: blur(14px); border-bottom: 1px solid transparent; }
.lp-nav-row { display: flex; align-items: center; height: 72px; gap: 40px; }
.lp-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; }
.lp-brand img { border-radius: 50%; }
.lp-nav-links { display: flex; gap: 32px; font-size: 15px; color: var(--ink-soft); }
.lp-nav-links a:hover, .lp-nav-login:hover { color: var(--ink); }
.lp-nav-actions { display: flex; align-items: center; gap: 20px; margin-left: auto; }
.lp-nav-login { font-size: 15px; font-weight: 600; color: var(--ink-soft); }

.lp-hero { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 48px; align-items: end; padding-top: 72px; padding-bottom: 56px; }
.lp-hero h1 { font-size: clamp(52px, 8vw, 104px); line-height: 1.08; font-weight: 800; letter-spacing: -.01em; }
.lp-hero em { font-style: normal; background: var(--brand-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lp-hero-side { padding-bottom: 12px; }
.lp-hero-side p { font-size: 18px; line-height: 1.75; color: var(--ink-soft); }
.lp-hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.lp-stage {
  padding: 40px;
  border-radius: 28px;
  background:
    radial-gradient(60% 70% at 88% 8%, rgba(255, 255, 255, .22), transparent 70%),
    radial-gradient(70% 80% at 6% 100%, rgba(203, 74, 246, .55), transparent 70%),
    linear-gradient(145deg, #3a2be0 0%, #5b4cee 48%, #a13ff2 100%);
}
.lp-app { overflow: hidden; border-radius: 16px; background: #fff; box-shadow: 0 30px 60px rgba(22, 18, 66, .3); }
.lp-app-bar { display: flex; align-items: center; gap: 12px; height: 56px; padding: 0 24px; border-bottom: 1px solid var(--line); font-size: 14px; }
.lp-app-title { font-weight: 700; }
.lp-app-ratio { padding: 2px 8px; border-radius: 6px; background: var(--tint); font-size: 12px; color: var(--ink-soft); }
.lp-app-status { margin-left: auto; font-weight: 600; color: #5b4cee; }
.lp-app-status.is-done { color: #0f8a5f; }
.lp-app-body { display: grid; grid-template-columns: minmax(0, 1fr) 260px minmax(0, 1fr); }
.lp-pane { padding: 24px; }
.lp-pane h2 { margin-bottom: 16px; font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.lp-pane ol, .lp-pane ul { margin: 0; padding: 0; list-style: none; }
.lp-pane-script li { padding: 12px 14px; border-radius: 10px; font-size: 15px; line-height: 1.6; color: var(--ink-soft); transition: background .3s, color .3s; }
.lp-pane-script li.is-on { background: var(--tint); color: var(--ink); font-weight: 600; }
.lp-preview { display: flex; justify-content: center; padding: 24px 0; background: var(--tint); }
.lp-phone { position: relative; overflow: hidden; width: 200px; aspect-ratio: 9 / 16; border-radius: 14px; box-shadow: 0 12px 28px rgba(22, 18, 66, .16); }
.lp-phone video { display: block; width: 100%; height: 100%; object-fit: cover; }
.lp-sub { position: absolute; left: 6px; right: 6px; bottom: 36px; margin: 0; text-align: center; white-space: nowrap; font-size: 12px; line-height: 1.4; font-weight: 800; color: #fff; text-shadow: 0 0 3px #161242, 0 1px 3px #161242, 0 0 1px #161242; }
/* 卡拉 OK:同一句字幕叠一层高亮,宽度随播放进度增加 */
#demo-sub { position: relative; display: inline-block; }
#demo-sub::after { content: attr(data-text); position: absolute; top: 0; left: 0; overflow: hidden; width: var(--sung, 0%); color: #ffd84d; }
.lp-pane-steps li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.lp-pane-steps li:last-child { border-bottom: 0; }
.lp-pane-steps b { font-size: 15px; font-weight: 600; }
.lp-pane-steps span { grid-row: 2; font-size: 13px; color: var(--ink-soft); }
.lp-pane-steps i { grid-column: 2; grid-row: 1 / 3; align-self: center; font-style: normal; font-size: 13px; color: #9793a9; }
.lp-pane-steps li.is-active i { color: #5b4cee; font-weight: 600; }
.lp-pane-steps li.is-done i { color: #0f8a5f; }

.lp-tracks { position: relative; display: grid; gap: 6px; padding: 16px 24px 18px; border-top: 1px solid var(--line); }
.lp-track { display: grid; grid-template-columns: 44px minmax(0, 1fr); align-items: center; gap: 12px; font-size: 12px; color: var(--ink-soft); }
.lp-track > div { display: flex; gap: 3px; height: 18px; }
.lp-clip { display: flex; align-items: center; gap: 2px; width: 100%; height: 100%; overflow: hidden; border-radius: 4px; }
.lp-clip-video { background: #cfc9fb; }
.lp-clip-voice { padding: 0 4px; background: #efedff; }
.lp-clip-voice i { flex: 1; min-width: 1px; border-radius: 1px; background: #5b4cee; }
.lp-clip-bgm { background: #f3dcfd; }
.lp-subclips b { height: 100%; border-radius: 4px; background: #e2def9; }
.lp-playhead { position: absolute; top: 12px; bottom: 12px; left: 80px; width: 2px; background: #cb4af6; }

.lp-section { padding-top: 120px; }
.lp-title { font-size: clamp(32px, 4.2vw, 52px); line-height: 1.2; font-weight: 800; }
.lp-flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; margin: 56px 0 0; padding: 0; list-style: none; }
.lp-flow li { padding-top: 20px; border-top: 2px solid var(--ink); }
.lp-flow span { font-size: 14px; font-weight: 600; color: #5b4cee; }
.lp-flow h3 { margin-top: 12px; font-size: 24px; font-weight: 700; }
.lp-flow p { margin-top: 10px; font-size: 15px; line-height: 1.7; color: var(--ink-soft); }

.lp-bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; margin-top: 56px; }
.lp-cell { display: flex; flex-direction: column; justify-content: space-between; gap: 32px; grid-column: span 2; min-height: 300px; padding: 28px; border-radius: 20px; background: var(--tint); }
.lp-cell-wide { grid-column: span 4; flex-direction: row; align-items: stretch; }
.lp-cell-wide .lp-cell-copy { flex: 0 0 38%; }
.lp-cell-wide + .lp-cell { grid-column: span 2; }
.lp-cell h3 { font-size: 22px; font-weight: 700; }
.lp-cell-copy p { margin-top: 10px; font-size: 15px; line-height: 1.7; color: var(--ink-soft); }
.lp-shots { flex: 1; align-self: center; border-collapse: collapse; font-size: 14px; }
.lp-shots td { padding: 12px 10px; border-bottom: 1px solid var(--line); line-height: 1.5; vertical-align: top; }
.lp-shots tr:last-child td { border-bottom: 0; }
.lp-shots td:first-child { width: 48px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.lp-shots td:nth-child(2) { width: 52px; font-weight: 700; color: #5b4cee; }
.lp-wave { display: flex; align-items: center; gap: 3px; height: 88px; }
.lp-wave i { flex: 1; min-width: 2px; border-radius: 2px; background: #5b4cee; }
.lp-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.lp-chips span { padding: 8px 14px; border-radius: 999px; background: #fff; font-size: 14px; font-weight: 600; }
.lp-captions { display: flex; flex-direction: column; gap: 4px; font-size: 16px; color: #9793a9; }
.lp-captions .is-on { font-size: 20px; font-weight: 800; color: var(--ink); }
.lp-tunes { margin: 0; padding: 0; list-style: none; font-size: 15px; }
.lp-tunes li { padding: 10px 0; border-top: 1px solid var(--line); }

.lp-team { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 64px; }
.lp-lead { margin-top: 20px; max-width: 400px; font-size: 17px; line-height: 1.75; color: var(--ink-soft); }
.lp-rows { margin: 0; }
.lp-rows div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 24px; padding: 22px 0; border-top: 1px solid var(--line); }
.lp-rows div:last-child { border-bottom: 1px solid var(--line); }
.lp-rows dt { font-size: 16px; font-weight: 700; }
.lp-rows dd { margin: 0; font-size: 15px; line-height: 1.7; color: var(--ink-soft); }

.lp-end { margin-top: 120px; padding: 88px 0 32px; background: var(--ink); color: #fff; }
.lp-end-main { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 64px; align-items: end; }
.lp-end h2 { margin-bottom: 32px; font-size: clamp(36px, 5.4vw, 68px); line-height: 1.14; font-weight: 800; }
.lp-end-side { padding-bottom: 8px; }
.lp-end-side h3 { font-size: 20px; font-weight: 700; }
.lp-end-side p { margin-top: 10px; font-size: 15px; line-height: 1.7; color: rgba(255, 255, 255, .68); }
.lp-mail { display: inline-block; margin-top: 16px; padding-bottom: 2px; border-bottom: 1px solid rgba(255, 255, 255, .4); font-size: 18px; font-weight: 600; }
.lp-mail:hover { border-color: #fff; }
.lp-end-foot { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 72px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .14); font-size: 13px; color: rgba(255, 255, 255, .6); }
.lp-end-foot .lp-brand { font-size: 15px; color: #fff; }

[data-reveal] { transition: opacity .6s ease, transform .6s cubic-bezier(.16, 1, .3, 1); }
[data-reveal].is-pending { opacity: 0; transform: translateY(16px); }

@media (max-width: 1040px) {
  .lp-app-body { grid-template-columns: minmax(0, 1fr) 240px; }
  .lp-pane-script { display: none; }
  .lp-cell, .lp-cell-wide + .lp-cell { grid-column: span 3; }
  .lp-cell-wide { grid-column: span 6; }
  .lp-team { grid-template-columns: minmax(0, 1fr); gap: 40px; }
}
@media (max-width: 760px) {
  .lp-wrap { padding: 0 16px; }
  .lp-nav-row { height: 60px; }
  .lp-nav-links { display: none; }
  .lp-hero { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-top: 32px; padding-bottom: 32px; }
  .lp-hero-side { padding-bottom: 0; }
  .lp-hero-side p { font-size: 16px; }
  .lp-stage { padding: 12px; border-radius: 20px; }
  .lp-app-bar { padding: 0 16px; }
  .lp-app-body { grid-template-columns: minmax(0, 1fr); }
  .lp-pane-steps { padding: 12px 16px; }
  .lp-pane-steps h2 { display: none; }
  .lp-tracks { padding: 12px 16px 14px; }
  .lp-playhead { left: 72px; }
  @keyframes lp-play { to { left: calc(100% - 16px); } }
  .lp-section { padding-top: 72px; }
  .lp-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 16px; margin-top: 36px; }
  .lp-flow h3 { font-size: 20px; }
  .lp-bento { grid-template-columns: minmax(0, 1fr); margin-top: 36px; }
  .lp-cell, .lp-cell-wide, .lp-cell-wide + .lp-cell { grid-column: auto; min-height: 0; padding: 22px; gap: 24px; }
  .lp-cell-wide { flex-direction: column; }
  .lp-cell-wide .lp-cell-copy { flex: none; }
  .lp-shots { flex: none; width: 100%; }
  .lp-rows div { grid-template-columns: minmax(0, 1fr); gap: 4px; padding: 18px 0; }
  .lp-end { margin-top: 72px; padding-top: 56px; }
  .lp-end-main { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .lp-end-foot { margin-top: 48px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .lp-btn, [data-reveal] { transition: none; }
}