/* 官网落地页：对齐客户端八爪鱼配色 */
:root {
  --bg-base: #0f1117;
  --bg-surface: #161922;
  --bg-elevated: #1e2230;
  --bg-hover: #252a3a;
  --border: #2a3042;
  --text: #e8eaf0;
  --text-muted: #8b93a7;
  --accent: #4f8cff;
  --accent-hover: #3a7aef;
  --success: #34d399;
  --danger: #f87171;
  --font-display: "Syne", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Syne", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body.landing {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(79, 140, 255, 0.22), transparent 55%),
    radial-gradient(900px 520px at 92% 8%, rgba(52, 211, 153, 0.1), transparent 50%),
    linear-gradient(180deg, #12151e 0%, var(--bg-base) 42%, #0c0e14 100%);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.lp-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem clamp(1.25rem, 4vw, 3rem);
  background: rgba(15, 17, 23, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(42, 48, 66, 0.85);
}

.lp-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.lp-brand img {
  border-radius: 9px;
  box-shadow: 0 0 0 1px rgba(79, 140, 255, 0.35);
}

.lp-nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.lp-nav-links a:hover,
.lp-nav-link-btn:hover { color: var(--text); }

.lp-nav-link-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  padding: 0;
}

.lp-nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.95rem;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  transition: background 0.18s ease, transform 0.18s ease;
}

.lp-nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.lp-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  min-height: calc(100vh - 64px);
  padding: clamp(2.5rem, 7vh, 5rem) clamp(1.25rem, 4vw, 3rem) clamp(3rem, 8vh, 5.5rem);
  overflow: hidden;
}

.lp-hero-glow {
  position: absolute;
  inset: 10% 35% auto auto;
  width: min(520px, 55vw);
  height: min(520px, 55vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.28), transparent 68%);
  filter: blur(8px);
  pointer-events: none;
  animation: lp-pulse 7s ease-in-out infinite;
}

.lp-hero-copy {
  position: relative;
  z-index: 1;
  animation: lp-rise 0.7s ease-out both;
}

.lp-brand-hero {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.5vw, 4.4rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1;
  background: linear-gradient(120deg, #e8eaf0 20%, #4f8cff 70%, #34d399 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lp-hero-copy h1 {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.35rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

.lp-lead {
  margin: 0 0 1.6rem;
  max-width: 34rem;
  color: var(--text-muted);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.65;
}

.lp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.lp-hero-meta {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.lp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.lp-btn-primary {
  background: var(--accent);
  color: #fff;
}

.lp-btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.lp-btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.lp-btn-ghost:hover {
  border-color: #3d8bfd;
  background: rgba(79, 140, 255, 0.08);
}

.lp-btn-disabled {
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-color: var(--border);
  cursor: not-allowed;
}

.lp-hero-stage {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 268px 220px;
  grid-template-rows: 500px auto;
  gap: 0.75rem 0.85rem;
  align-items: stretch;
  justify-content: end;
  width: min(520px, 100%);
  margin-left: auto;
  animation: lp-rise 0.85s 0.12s ease-out both;
}

.lp-phone {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  overflow: hidden;
}

.lp-phone-main {
  grid-column: 1;
  grid-row: 1;
  position: relative;
  width: 268px;
  height: 500px;
  max-width: 100%;
  border: 2px solid #3d8bfd;
  box-shadow:
    0 0 0 1px rgba(61, 139, 253, 0.35),
    0 0 28px rgba(61, 139, 253, 0.22),
    0 24px 60px rgba(0, 0, 0, 0.45);
}

.lp-phone-body {
  position: relative;
  flex: 1;
  min-height: 0;
}

.lp-phone-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 0.45rem 0.55rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  flex-shrink: 0;
}

.lp-stage-live {
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #0b1f3a;
  background: #3d8bfd;
}

.lp-phone-sync {
  font-size: 0.62rem;
  color: var(--success);
  font-weight: 600;
}

.lp-thumb-tag {
  font-size: 0.58rem;
  color: var(--text-muted);
}

.lp-wx {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: #11151d;
}

.lp-app {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: #11151d;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 0;
}

.lp-app.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  z-index: 1;
}

.lp-wx-title {
  padding: 0.45rem 0.55rem;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  border-bottom: 1px solid rgba(42, 48, 66, 0.8);
  background: #161b26;
  flex-shrink: 0;
  height: 2rem;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lp-wx-chat {
  flex: 1;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 0.55rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background:
    radial-gradient(400px 200px at 50% 0%, rgba(79, 140, 255, 0.08), transparent 60%),
    #0e1219;
}

.lp-wx-msg {
  max-width: 86%;
  padding: 0.38rem 0.55rem;
  border-radius: 10px;
  font-size: 0.72rem;
  line-height: 1.4;
  word-break: break-word;
}

.lp-wx-msg.them {
  align-self: flex-start;
  background: #2a3142;
  color: var(--text);
}

.lp-wx-msg.me {
  align-self: flex-end;
  background: #2f6fed;
  color: #fff;
}

.lp-wx-msg.is-new {
  animation: lp-bubble-in 0.28s ease-out;
}

.lp-wx-input {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.45rem;
  border-top: 1px solid var(--border);
  background: #161b26;
  flex-shrink: 0;
  height: 2.6rem;
  box-sizing: border-box;
}

.lp-wx-field {
  flex: 1;
  min-width: 0;
  height: 1.75rem;
  min-height: 1.75rem;
  max-height: 1.75rem;
  display: flex;
  align-items: center;
  padding: 0 0.45rem;
  border-radius: 8px;
  background: #0f131a;
  border: 1px solid transparent;
  font-size: 0.72rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  box-sizing: border-box;
}

.lp-wx-field [data-demo-draft] {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: bottom;
}

.lp-phone.is-focused .lp-wx-field {
  border-color: rgba(79, 140, 255, 0.55);
  box-shadow: inset 0 0 0 1px rgba(79, 140, 255, 0.12);
}

.lp-wx-caret {
  display: none;
  width: 1px;
  height: 0.9em;
  margin-left: 1px;
  background: #9ec1ff;
  animation: lp-caret 0.9s steps(1) infinite;
}

.lp-phone.is-focused .lp-wx-caret,
.lp-phone.is-typing .lp-wx-caret {
  display: inline-block;
}

.lp-wx-send {
  flex-shrink: 0;
  padding: 0.28rem 0.5rem;
  border-radius: 7px;
  background: #2f6fed;
  color: #fff;
  font-size: 0.68rem;
  font-weight: 600;
  transition: transform 0.12s ease, filter 0.12s ease;
}

.lp-wx-send.is-press {
  transform: scale(0.92);
  filter: brightness(1.15);
}

.lp-demo-cursor {
  position: absolute;
  left: 0;
  top: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: rgba(79, 140, 255, 0.55);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.25);
  pointer-events: none;
  opacity: 0;
  transition: transform 0.28s ease, opacity 0.2s ease;
  z-index: 5;
}

.lp-stage-rail {
  grid-column: 2;
  grid-row: 1;
  display: grid;
  grid-template-columns: repeat(2, 104px);
  grid-template-rows: repeat(5, 94px);
  gap: 0.4rem;
  width: 220px;
  height: 500px;
  overflow-y: auto;
  overflow-x: hidden;
  align-content: start;
  padding-right: 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(79, 140, 255, 0.35) transparent;
}

.lp-phone-thumb {
  width: 104px;
  height: 94px;
  opacity: 0.92;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.lp-phone-thumb .lp-phone-bar {
  padding: 0.22rem 0.3rem;
  height: 1.35rem;
  box-sizing: border-box;
}

.lp-phone-thumb .lp-wx-title {
  display: none;
}

.lp-phone-thumb.is-pulse {
  border-color: #6aa8ff;
  box-shadow: 0 0 0 1px rgba(106, 168, 255, 0.35);
}

.lp-wx-mini .lp-wx-title {
  font-size: 0.55rem;
  padding: 0.25rem 0.3rem;
}

.lp-wx-mini .lp-wx-chat {
  padding: 0.3rem;
  gap: 0.25rem;
}

.lp-wx-mini .lp-wx-msg {
  font-size: 0.48rem;
  padding: 0.2rem 0.3rem;
  border-radius: 6px;
  max-width: 92%;
}

.lp-wx-mini .lp-wx-input {
  padding: 0.15rem 0.22rem;
  height: 1.45rem;
}

.lp-wx-mini .lp-wx-field {
  height: 1.1rem;
  min-height: 1.1rem;
  max-height: 1.1rem;
  font-size: 0.48rem;
  padding: 0 0.28rem;
  border-radius: 5px;
}

.lp-wx-mini .lp-wx-send { display: none; }

.lp-feed-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background: #0a0c12;
}

.lp-feed-clip {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0.7rem 0.65rem 0.85rem;
  opacity: 0;
  transform: translateY(18%);
  transition: opacity 0.28s ease, transform 0.35s ease;
  background:
    linear-gradient(180deg, transparent 35%, rgba(0, 0, 0, 0.72) 100%),
    linear-gradient(145deg, #2a4a7a 0%, #1a2338 45%, #0f141f 100%);
}

.lp-feed-clip[data-clip="1"] {
  background:
    linear-gradient(180deg, transparent 35%, rgba(0, 0, 0, 0.72) 100%),
    linear-gradient(155deg, #3d2a5c 0%, #1e2740 50%, #10151f 100%);
}

.lp-feed-clip.is-active {
  opacity: 1;
  transform: translateY(0);
  z-index: 1;
}

.lp-feed-stage.is-swiping .lp-feed-clip.is-active {
  animation: lp-feed-in 0.4s ease-out;
}

.lp-feed-badge {
  align-self: flex-start;
  margin-bottom: auto;
  margin-top: 0.55rem;
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
  font-size: 0.58rem;
  font-weight: 700;
  color: #0b1f3a;
  background: rgba(158, 193, 255, 0.95);
}

.lp-feed-caption {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.35;
  color: #f2f4f8;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.45);
}

.lp-feed-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 0.4rem 0.5rem;
  border-top: 1px solid var(--border);
  background: #161b26;
  flex-shrink: 0;
  height: 2.6rem;
  box-sizing: border-box;
}

.lp-feed-like {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  padding: 0;
  cursor: default;
  font: inherit;
}

.lp-feed-heart {
  font-size: 0.95rem;
  line-height: 1;
  transition: transform 0.2s ease, color 0.2s ease;
}

.lp-feed-like em {
  font-style: normal;
  font-size: 0.72rem;
  font-weight: 600;
}

.lp-feed-like.is-liked {
  color: #ff6b8a;
}

.lp-feed-like.is-liked .lp-feed-heart {
  color: #ff4d6d;
}

.lp-feed-like.is-pop .lp-feed-heart {
  animation: lp-like-pop 0.38s ease-out;
}

.lp-feed-hint {
  font-size: 0.62rem;
  color: var(--text-muted);
}

.lp-wx-mini .lp-feed-badge {
  font-size: 0.45rem;
  margin-top: 0.3rem;
  padding: 0.08rem 0.25rem;
}

.lp-wx-mini .lp-feed-caption {
  font-size: 0.48rem;
}

.lp-wx-mini .lp-feed-actions {
  padding: 0.15rem 0.3rem;
  height: 1.45rem;
}

.lp-wx-mini .lp-feed-heart { font-size: 0.7rem; }
.lp-wx-mini .lp-feed-like em { font-size: 0.48rem; }
.lp-wx-mini .lp-feed-hint { display: none; }

.lp-demo-caption {
  grid-column: 1 / -1;
  grid-row: 2;
  margin: 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

@keyframes lp-caret {
  50% { opacity: 0; }
}

@keyframes lp-bubble-in {
  from { opacity: 0; transform: translateY(6px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes lp-feed-in {
  from { opacity: 0.4; transform: translateY(28%); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes lp-like-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.45); }
  100% { transform: scale(1); }
}

.lp-section {
  padding: clamp(3.5rem, 9vh, 5.5rem) clamp(1.25rem, 4vw, 3rem);
  max-width: 1080px;
  margin: 0 auto;
}

.lp-section-head {
  margin-bottom: 2rem;
  max-width: 36rem;
}

.lp-section-head h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
}

.lp-section-head p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.6;
}

.lp-adv-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.lp-adv-list li {
  padding: 1.15rem 1.2rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background:
    linear-gradient(165deg, rgba(79, 140, 255, 0.08), transparent 55%),
    rgba(22, 25, 34, 0.92);
  min-height: 100%;
}

.lp-adv-list strong {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.55rem;
  font-size: 1.02rem;
  color: var(--text);
  line-height: 1.35;
}

.lp-adv-list span {
  display: block;
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.9rem;
}

.lp-ico {
  flex: 0 0 auto;
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 8px;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.35), transparent 45%),
    linear-gradient(145deg, rgba(79, 140, 255, 0.55), rgba(52, 211, 153, 0.28));
  box-shadow:
    0 0 0 1px rgba(158, 193, 255, 0.35),
    0 0 14px rgba(79, 140, 255, 0.45);
  position: relative;
}

.lp-ico::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: #f4f7ff;
  opacity: 0.95;
  filter: drop-shadow(0 0 4px rgba(158, 193, 255, 0.8));
}

.lp-ico-hd::before {
  width: 0.72rem;
  height: 0.52rem;
  border-radius: 2px;
  box-shadow: inset 0 0 0 1.5px #f4f7ff;
  background: transparent;
  filter: none;
}
.lp-ico-hd::after {
  content: "2K";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 0.42rem;
  font-weight: 800;
  font-style: normal;
  color: #f4f7ff;
  letter-spacing: -0.02em;
  text-shadow: 0 0 6px rgba(158, 193, 255, 0.9);
}

.lp-ico-grid::before {
  width: 0.7rem;
  height: 0.7rem;
  background:
    linear-gradient(#f4f7ff 0 0) 0 0 / 40% 40%,
    linear-gradient(#f4f7ff 0 0) 100% 0 / 40% 40%,
    linear-gradient(#f4f7ff 0 0) 0 100% / 40% 40%,
    linear-gradient(#f4f7ff 0 0) 100% 100% / 40% 40%;
  background-repeat: no-repeat;
  filter: drop-shadow(0 0 4px rgba(158, 193, 255, 0.8));
}

.lp-ico-sync::before {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: transparent;
  box-shadow: inset 0 0 0 1.6px #f4f7ff;
  filter: drop-shadow(0 0 4px rgba(158, 193, 255, 0.8));
}
.lp-ico-sync::after {
  content: "";
  position: absolute;
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: #f4f7ff;
  top: 0.28rem;
  right: 0.28rem;
  box-shadow: 0 0 6px rgba(158, 193, 255, 0.9);
}

.lp-ico-cluster::before {
  width: 0.22rem;
  height: 0.22rem;
  border-radius: 50%;
  box-shadow:
    -0.28rem 0.22rem 0 #f4f7ff,
    0.28rem 0.22rem 0 #f4f7ff,
    0 -0.26rem 0 #f4f7ff,
    0 0 6px rgba(158, 193, 255, 0.85);
  filter: none;
}

.lp-ico-script::before {
  width: 0.55rem;
  height: 0.7rem;
  border-radius: 1px;
  background: #f4f7ff;
  clip-path: polygon(0 0, 70% 0, 100% 30%, 100% 100%, 0 100%);
}
.lp-ico-script::after {
  content: "";
  position: absolute;
  width: 0.32rem;
  height: 1.5px;
  background: rgba(15, 17, 23, 0.55);
  top: 0.62rem;
  left: 0.48rem;
  box-shadow: 0 3px 0 rgba(15, 17, 23, 0.55), 0 6px 0 rgba(15, 17, 23, 0.55);
}

.lp-ico-moon::before {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 50%;
  background: #f4f7ff;
  box-shadow: inset -0.18rem -0.05rem 0 0.02rem rgba(30, 40, 70, 0.85);
}

.lp-scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.lp-scene-list li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 1.2rem 1.15rem;
  border-radius: 14px;
  border: 1px solid rgba(79, 140, 255, 0.28);
  background:
    linear-gradient(160deg, rgba(52, 211, 153, 0.08), transparent 50%),
    rgba(22, 25, 34, 0.9);
}

.lp-scene-list strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1rem;
  color: var(--text);
}

.lp-scene-list span {
  display: block;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.lp-scene-ico {
  flex: 0 0 auto;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 12px;
  position: relative;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.28), transparent 42%),
    linear-gradient(145deg, rgba(79, 140, 255, 0.5), rgba(52, 211, 153, 0.22));
  box-shadow:
    0 0 0 1px rgba(158, 193, 255, 0.3),
    0 0 18px rgba(79, 140, 255, 0.35);
}

.lp-scene-ico::before,
.lp-scene-ico::after {
  content: "";
  position: absolute;
  background: #f4f7ff;
  filter: drop-shadow(0 0 5px rgba(158, 193, 255, 0.85));
}

.lp-scene-ico-video::before {
  width: 0.95rem;
  height: 0.7rem;
  border-radius: 3px;
  inset: 0;
  margin: auto;
  box-shadow: inset 0 0 0 1.5px #f4f7ff;
  background: transparent;
  filter: drop-shadow(0 0 5px rgba(158, 193, 255, 0.85));
}
.lp-scene-ico-video::after {
  width: 0;
  height: 0;
  background: transparent;
  border-style: solid;
  border-width: 0.22rem 0 0.22rem 0.36rem;
  border-color: transparent transparent transparent #f4f7ff;
  inset: 0;
  margin: auto;
  left: 0.12rem;
  filter: drop-shadow(0 0 4px rgba(158, 193, 255, 0.9));
}

.lp-scene-ico-chat::before {
  width: 1rem;
  height: 0.72rem;
  border-radius: 0.35rem;
  inset: 0;
  margin: auto;
  top: -0.12rem;
}
.lp-scene-ico-chat::after {
  width: 0.28rem;
  height: 0.28rem;
  background: transparent;
  border-left: 0.28rem solid #f4f7ff;
  border-top: 0.22rem solid transparent;
  bottom: 0.55rem;
  left: 0.72rem;
  filter: none;
}

.lp-scene-ico-work::before {
  width: 1rem;
  height: 0.7rem;
  border-radius: 2px;
  inset: 0;
  margin: auto;
  top: -0.15rem;
  box-shadow: inset 0 0 0 1.5px #f4f7ff;
  background: transparent;
  filter: drop-shadow(0 0 5px rgba(158, 193, 255, 0.85));
}
.lp-scene-ico-work::after {
  width: 0.55rem;
  height: 0.12rem;
  border-radius: 2px;
  bottom: 0.62rem;
  left: 0;
  right: 0;
  margin: auto;
}

.lp-section-head-center {
  max-width: none;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.lp-section-head-center h1,
.lp-section-head-center h2 {
  font-family: var(--font-display);
}

.lp-page {
  padding-top: 1rem;
}

.lp-nav-links a.is-active {
  color: var(--text);
}

.lp-price-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
  align-items: stretch;
}

.lp-price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.35rem 1.3rem 1.4rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  background:
    linear-gradient(165deg, rgba(79, 140, 255, 0.07), transparent 50%),
    rgba(22, 25, 34, 0.94);
}

.lp-price-card.is-featured {
  border-color: rgba(79, 140, 255, 0.65);
  box-shadow:
    0 0 0 1px rgba(79, 140, 255, 0.18),
    0 18px 40px rgba(0, 0, 0, 0.28);
  background:
    linear-gradient(165deg, rgba(79, 140, 255, 0.16), transparent 55%),
    rgba(22, 25, 34, 0.98);
}

.lp-price-badge {
  position: absolute;
  top: 0.95rem;
  right: 0.95rem;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #0b1f3a;
  background: #4f8cff;
  box-shadow: 0 0 12px rgba(79, 140, 255, 0.45);
}

.lp-price-head h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.lp-price-head p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 18rem;
}

.lp-price-limit {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
}

.lp-price-limit strong {
  color: #9ec1ff;
  font-size: 1.15rem;
}

.lp-price-feats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.lp-price-feats li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.lp-price-feats li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: #4f8cff;
  box-shadow: 0 0 8px rgba(79, 140, 255, 0.7);
}

.lp-price-tiers {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.15rem;
}

.lp-price-tier {
  display: grid;
  grid-template-columns: 3.2rem 1fr auto;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(15, 17, 23, 0.55);
}

.lp-price-tier.is-best {
  border-color: rgba(79, 140, 255, 0.45);
  background: rgba(79, 140, 255, 0.1);
}

.lp-price-tier > span {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.lp-price-tier strong {
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: 0.01em;
}

.lp-price-tier strong span {
  margin-left: 0.1rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
}

.lp-price-tier em {
  font-style: normal;
  font-size: 0.78rem;
  color: #7dd3b0;
  justify-self: end;
}

.lp-price-cta {
  margin-top: auto;
  width: 100%;
}

.lp-price-note {
  margin: 1.1rem 0 0;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.lp-price-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
  justify-content: center;
}

.lp-inline-link {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  padding: 0;
}

.lp-inline-link:hover,
.lp-price-note a:hover {
  text-decoration: underline;
}

.lp-price-note a {
  color: var(--accent);
}

.lp-foot-meta a {
  color: var(--accent);
}

.lp-foot-meta a:hover {
  text-decoration: underline;
}

.lp-section-download {
  max-width: 860px;
}

.lp-release-notes {
  margin: -0.5rem 0 1.25rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.lp-download-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.lp-download-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.2rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(22, 25, 34, 0.88);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.lp-download-row.is-recommended {
  border-color: rgba(79, 140, 255, 0.55);
  box-shadow: 0 0 0 1px rgba(79, 140, 255, 0.12);
}

.lp-download-row.is-unavailable {
  opacity: 0.72;
}

.lp-download-info {
  flex: 1;
  min-width: 0;
}

.lp-download-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
  flex-shrink: 0;
}

.lp-download-fallback {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.lp-download-fallback:hover {
  color: var(--text);
}

.lp-download-info h3 {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lp-download-info h3 em {
  font-style: normal;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  background: rgba(79, 140, 255, 0.2);
  color: #9ec1ff;
}

.lp-download-info p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.lp-empty {
  color: var(--text-muted);
}

.lp-steps {
  margin: 2rem 0 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 0.92rem;
}

.lp-foot {
  padding: 2.5rem clamp(1.25rem, 4vw, 3rem) 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
}

.lp-foot-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
}

.lp-foot-brand img { border-radius: 7px; }

.lp-foot p { margin: 0.25rem 0; font-size: 0.9rem; }

.lp-foot-meta {
  margin-top: 0.85rem !important;
  font-size: 0.8rem !important;
  opacity: 0.85;
}

.lp-foot-link {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  padding: 0;
}

.lp-foot-link:hover { text-decoration: underline; }

.lp-contact-dialog {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 0;
  background: var(--bg-surface);
  color: var(--text);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55);
  max-width: calc(100vw - 2rem);
}

.lp-contact-dialog::backdrop {
  background: rgba(8, 10, 16, 0.72);
  backdrop-filter: blur(4px);
}

.lp-contact-panel {
  margin: 0;
  padding: 1.25rem 1.35rem 1.5rem;
  width: min(320px, 86vw);
}

.lp-contact-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.lp-contact-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.lp-contact-close {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  font-size: 0.82rem;
  cursor: pointer;
}

.lp-contact-close:hover {
  color: var(--text);
  border-color: #3d8bfd;
}

.lp-contact-tip {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.lp-contact-qr {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: #fff;
}

@keyframes lp-rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes lp-pulse {
  0%, 100% { opacity: 0.75; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

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

  .lp-hero-stage {
    justify-content: start;
    margin-left: 0;
    width: min(440px, 100%);
    grid-template-columns: 220px 180px;
    grid-template-rows: 420px auto;
  }

  .lp-phone-main {
    width: 220px;
    height: 420px;
  }

  .lp-stage-rail {
    width: 180px;
    height: 420px;
    grid-template-columns: repeat(2, 86px);
    grid-template-rows: repeat(5, 78px);
  }

  .lp-phone-thumb {
    width: 86px;
    height: 78px;
  }

  .lp-adv-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
  }

  .lp-scene-list {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .lp-price-grid {
    grid-template-columns: 1fr;
  }

  .lp-nav-links { display: none; }

  .lp-nav .lp-nav-cta { margin-left: auto; }
}

@media (max-width: 560px) {
  .lp-download-row {
    flex-direction: column;
    align-items: stretch;
  }

  .lp-download-row .lp-btn {
    width: 100%;
  }

  .lp-download-actions {
    align-items: stretch;
  }

  .lp-download-fallback {
    text-align: center;
  }

  .lp-adv-list {
    grid-template-columns: 1fr;
  }

  .lp-scene-list {
    grid-template-columns: 1fr;
  }
}