/* Fluid gradient · seamless WPS AI */
:root {
  --bg: #fff8f5;
  --bg-soft: #ffe8df;
  --ink: #2a2438;
  --muted: #6d6478;
  --line: rgba(42, 36, 56, 0.1);
  --accent: #ff6b6b;
  --accent-2: #3ecfcf;
  --deep: #e85d4c;
  --panel: #ffffff;
  --dark: #2a2438;
  --ok: #3ecfcf;
  --peach: #ffb38a;
  --rose: #ff8fab;
  --radius: 22px;
  --shadow: 0 20px 50px rgba(255, 107, 107, 0.14);
  --font-display: Georgia, "Songti SC", "SimSun", serif;
  --font-body: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: Consolas, "Courier New", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(ellipse at 8% 0%, rgba(255, 179, 138, 0.45), transparent 42%),
    radial-gradient(ellipse at 92% 6%, rgba(62, 207, 207, 0.28), transparent 40%),
    radial-gradient(ellipse at 50% 30%, rgba(255, 143, 171, 0.18), transparent 50%),
    linear-gradient(180deg, #fff5f0 0%, var(--bg) 42%, #f5fffe 100%);
  font-family: var(--font-body);
  line-height: 1.68;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.nav { display: flex; align-items: center; gap: 1rem; min-height: 68px; }
.container { width: min(1120px, calc(100% - 2.5rem)); margin-inline: auto; }
.logo { display: inline-flex; align-items: center; gap: 0.65rem; color: var(--ink); font-weight: 700; }
.logo small {
  display: block; margin-top: 0.12rem; color: var(--accent);
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em;
}
.logo-mark {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(145deg, #ffb38a, #ff6b6b 50%, #3ecfcf);
  box-shadow: 0 0 0 4px rgba(255, 179, 138, 0.28);
}
.nav-links { display: flex; gap: 1.15rem; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 0.92rem; font-weight: 500; }
.nav-links a[aria-current="page"], .nav-links a:hover { color: var(--deep); }
.nav-cta, .btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 132px; min-height: 44px; padding: 0.7rem 1.15rem;
  border-radius: 999px; border: none;
  background: linear-gradient(120deg, #ff8fab, #ff6b6b 45%, #ffb38a);
  color: #fff; font-weight: 700;
  white-space: nowrap; word-break: keep-all; writing-mode: horizontal-tb;
  box-shadow: 0 12px 28px rgba(255, 107, 107, 0.28);
  transition: transform .2s ease, box-shadow .2s ease;
}
.nav-cta:hover, .btn:hover { transform: translateY(-1px); box-shadow: 0 16px 32px rgba(255, 107, 107, 0.36); }
.btn-secondary {
  background: transparent; color: var(--deep);
  border: 1.5px solid rgba(255, 107, 107, 0.35); box-shadow: none;
}
.section-dark .btn-secondary, .cta-panel .btn-secondary, .hero .btn-secondary {
  color: #fff; border-color: rgba(255, 255, 255, 0.45);
}
.btn-small { min-width: 110px; min-height: 40px; font-size: 0.9rem; }
.menu-toggle {
  display: none; width: 42px; height: 42px; margin-left: auto;
  border: 1px solid var(--line); background: #fff; border-radius: 50%;
}
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: var(--ink); }

.hero { padding: 4.4rem 0 2.8rem; position: relative; overflow: clip; }
.hero.flow-surface::before {
  content: ""; position: absolute; inset: -10% -5% auto -5%; height: 70%;
  background:
    radial-gradient(ellipse at 20% 40%, rgba(255, 179, 138, 0.55), transparent 55%),
    radial-gradient(ellipse at 70% 20%, rgba(62, 207, 207, 0.35), transparent 50%),
    radial-gradient(ellipse at 55% 70%, rgba(255, 143, 171, 0.4), transparent 55%);
  filter: blur(8px); animation: flowDrift 9s ease-in-out infinite alternate;
  pointer-events: none; z-index: 0;
}
@keyframes flowDrift {
  from { transform: translateX(-2%) translateY(0) scale(1); }
  to { transform: translateX(3%) translateY(2%) scale(1.04); }
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 2.5rem;
  align-items: center; position: relative; z-index: 1;
}
.live-badge {
  display: inline-flex; align-items: center; gap: 0.55rem;
  margin-bottom: 1rem; padding: 0.4rem 0.85rem; border-radius: 999px;
  background: rgba(255, 255, 255, 0.7); border: 1px solid rgba(255, 107, 107, 0.22);
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; color: var(--deep);
}
.live-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2);
  box-shadow: 0 0 0 0 rgba(62, 207, 207, .5); animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(62, 207, 207, .45); }
  70% { box-shadow: 0 0 0 10px rgba(62, 207, 207, 0); }
  100% { box-shadow: 0 0 0 0 rgba(62, 207, 207, 0); }
}
.hero h1, .page-hero h1, .title {
  margin: 0 0 0.9rem; font-family: var(--font-display); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.12; color: var(--ink);
}
.hero h1 { font-size: clamp(2.5rem, 5.4vw, 4rem); max-width: 11ch; }
.hero h1 span, .title span, .page-hero h1 span {
  background: linear-gradient(120deg, #ff6b6b, #ffb38a 45%, #3ecfcf);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-copy p, .intro { color: var(--muted); max-width: 40ch; }
.actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.5rem 0 1rem; }
.trust-row { display: flex; flex-wrap: wrap; gap: 0.65rem; }
.trust-row span {
  padding: 0.3rem 0.75rem; border-radius: 999px; background: rgba(255,255,255,0.85);
  border: 1px solid var(--line); font-size: 0.8rem; color: var(--muted);
}
.hero-visual { position: relative; align-self: center; }
.app-window {
  border-radius: 24px; border: 1px solid rgba(255, 107, 107, 0.18);
  background: #fff; box-shadow: var(--shadow); overflow: hidden;
}
.window-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.6rem 0.9rem; border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent);
}
.window-dots { display: flex; gap: 0.35rem; }
.window-dots i { width: 8px; height: 8px; border-radius: 50%; background: #ffb38a; display: block; }
.hero-visual img, .collab-media img, .scene-card img, .page-media img {
  display: block; width: 100%; height: auto; object-fit: contain; object-position: center;
  margin: 0; padding: 0; min-height: 0; max-height: none; clip-path: none; transform: none;
}
.presence-card {
  position: absolute; min-width: 180px; padding: 0.85rem 1rem;
  background: rgba(255,255,255,0.92); border: 1px solid var(--line);
  border-radius: 20px; box-shadow: var(--shadow); animation: floaty 4.8s ease-in-out infinite;
}
.presence-one { left: -0.5rem; bottom: 1.2rem; }
.presence-two { right: -0.3rem; top: 1.3rem; animation-delay: -1.5s; }
.presence-card strong { display: block; font-size: 0.92rem; }
.presence-card small { color: var(--muted); }
.presence-avatars { display: flex; gap: 0.3rem; margin-top: 0.45rem; }
.presence-avatars span {
  width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(145deg, #ff8fab, #3ecfcf); color: #fff; font-size: 0.68rem;
}
.sync-line {
  margin-top: 0.55rem; height: 3px; border-radius: 99px;
  background: linear-gradient(90deg, #ff6b6b, #ffb38a, #3ecfcf, transparent);
  background-size: 200% 100%; animation: sweep 2.2s linear infinite;
}
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes sweep { from { background-position: 0 0; } to { background-position: -200% 0; } }

.flow-wave {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.7rem; margin: 1rem auto;
}
.flow-wave span {
  padding: 1rem 0.85rem; text-align: center; border-radius: 22px; color: var(--muted);
  background: linear-gradient(160deg, rgba(255,255,255,0.95), rgba(255,232,223,0.7));
  border: 1px solid rgba(255, 107, 107, 0.14);
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em;
}
.flow-wave strong {
  display: block; color: var(--ink); font-size: 0.95rem; margin-top: 0.25rem;
  letter-spacing: 0; font-family: var(--font-body);
}

.mesh-ribbon {
  height: 56px; margin: 0.9rem auto 0; border-radius: 999px; position: relative; overflow: hidden;
  background: linear-gradient(90deg, #ffb38a, #ff8fab, #3ecfcf, #ff6b6b, #ffb38a);
  background-size: 300% 100%; animation: meshMove 6s linear infinite;
  opacity: 0.85;
}
.mesh-ribbon::after {
  content: ""; position: absolute; inset: 8px; border-radius: 999px;
  background: rgba(255, 248, 245, 0.72); backdrop-filter: blur(2px);
}
@keyframes meshMove { from { background-position: 0 0; } to { background-position: 300% 0; } }

.aurora-rail {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; margin: 1.1rem auto;
}
.aurora-rail article {
  padding: 1rem 1.05rem; background: rgba(255,255,255,0.88);
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(42, 36, 56, 0.05);
}
.aurora-rail b {
  display: block; font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 0.25rem;
}
.aurora-rail strong { display: block; margin-bottom: 0.25rem; }
.aurora-rail span { color: var(--muted); font-size: 0.88rem; }

.seam-banner {
  display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 1rem; margin: 1.2rem auto;
}
.seam-banner article {
  padding: 1.5rem 1.6rem; background: rgba(255,255,255,0.9);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.seam-banner .tap {
  background: linear-gradient(160deg, #ff6b6b, #ffb38a 50%, #3ecfcf);
  color: #fff; border: none; display: grid; place-items: center; text-align: center;
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.seam-banner .tap b { display: block; font-size: 2.1rem; color: #fff; }
.seam-banner small {
  font-family: var(--font-mono); letter-spacing: 0.1em; color: var(--accent); font-size: 0.72rem;
}

.seam-lane {
  display: flex; flex-wrap: wrap; gap: 0.55rem; align-items: center;
  padding: 0.9rem 1.1rem; margin: 1.1rem auto; background: rgba(255,255,255,0.88);
  border-radius: 999px; border: 1px dashed rgba(255, 107, 107, 0.35);
  font-family: var(--font-mono); font-size: 0.78rem;
}
.seam-lane .hub {
  padding: 0.4rem 0.75rem; border-radius: 999px;
  background: linear-gradient(120deg, #ff6b6b, #3ecfcf); color: #fff;
}
.seam-lane span {
  padding: 0.3rem 0.6rem; border-radius: 999px; background: var(--bg-soft); color: var(--muted);
}

.section { padding: 4.3rem 0; }
.section-white { background: rgba(255, 255, 255, 0.55); }
.section-dark {
  background: linear-gradient(145deg, #2a2438, #4a3558 45%, #2a6070);
  color: #fff;
}
.section-dark .intro { color: rgba(255, 255, 255, 0.8); }
.section-dark .title span { color: #ffb38a; }
.section-dark .eyebrow { color: #3ecfcf; }
.section-head {
  display: flex; justify-content: space-between; gap: 1.5rem;
  align-items: end; margin-bottom: 1.9rem;
}
.eyebrow {
  margin: 0 0 0.5rem; font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.14em; color: var(--accent); text-transform: uppercase;
}
.title { font-size: clamp(2rem, 3.8vw, 3rem); max-width: 12ch; }
.collab-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 2.2rem; align-items: center; }
.collab-media { position: relative; border-radius: 24px; overflow: hidden; }
.floating-note {
  position: absolute; left: 1rem; bottom: 1rem; padding: 0.8rem 1rem;
  background: #fff; border-radius: 18px; border-left: 4px solid var(--accent);
  box-shadow: var(--shadow); font-size: 0.9rem; color: var(--ink);
}
.floating-note span { color: var(--deep); font-weight: 700; }
.check-list { padding: 0; margin: 1rem 0 0; list-style: none; }
.check-list li {
  position: relative; padding: 0.5rem 0 0.5rem 1.4rem; border-bottom: 1px solid var(--line);
}
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 0.95rem;
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(120deg, #ff6b6b, #3ecfcf);
}

.download-grid, .feature-grid, .scene-grid, .pricing-grid, .quotes, .requirements, .help-grid { display: grid; gap: 1rem; }
.download-grid { grid-template-columns: repeat(4, 1fr); }
.feature-grid { grid-template-columns: repeat(3, 1fr); }
.scene-grid, .pricing-grid, .quotes, .requirements { grid-template-columns: repeat(3, 1fr); }
.download-card, .feature-card, .scene-card, .price-card, .quote, .requirement, .help-card, .article {
  background: rgba(255,255,255,0.92); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(42, 36, 56, 0.05);
}
.download-card, .feature-card, .price-card, .quote, .requirement, .help-card { padding: 1.25rem; }
.download-card .platform, .download-row .platform, .feature-icon, .article-num {
  display: inline-grid; place-items: center; min-width: 42px; min-height: 42px; padding: 0 0.5rem;
  border-radius: 14px; color: #fff; font-family: var(--font-mono); font-size: 0.76rem; font-weight: 700;
  background: linear-gradient(145deg, #ff8fab, #ff6b6b 50%, #3ecfcf);
}
.section-dark .download-card {
  background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.14); color: #fff;
}
.section-dark .download-card p { color: rgba(255, 255, 255, 0.78); }
.card-presence {
  display: inline-block; margin-bottom: 0.65rem; padding: 0.15rem 0.5rem; border-radius: 999px;
  background: rgba(255, 107, 107, 0.12); color: var(--deep);
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em;
}
.feature-card { transition: transform .2s ease, box-shadow .2s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-card h3, .download-card h3, .scene-copy h3, .price-card h3 { margin: 0.55rem 0; }
.feature-card p, .download-card p, .scene-copy p, .price-card li { color: var(--muted); }
.scene-card { overflow: hidden; display: flex; flex-direction: column; }
.scene-copy { padding: 1.15rem 1.25rem 1.35rem; }
.scene-copy small { font-family: var(--font-mono); color: var(--accent); letter-spacing: 0.08em; }
.scene-graphic {
  min-height: 150px;
  background:
    radial-gradient(circle at 30% 40%, rgba(255, 179, 138, 0.55), transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(62, 207, 207, 0.35), transparent 55%),
    linear-gradient(160deg, #ffe8df, #f5fffe);
}
.price-card.featured {
  transform: translateY(-8px); border: 2px solid rgba(255, 107, 107, 0.35);
  box-shadow: var(--shadow); background: linear-gradient(180deg, #fff, #fff5f0);
}
.plan { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--accent); }
.price { font-size: 1.8rem; font-weight: 700; }
.price small { font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.price-card ul { padding-left: 1.1rem; margin: 0.85rem 0 1.1rem; }
.quote-status {
  display: inline-block; margin-bottom: 0.7rem; font-family: var(--font-mono);
  font-size: 0.7rem; color: var(--accent-2); letter-spacing: 0.08em;
}
.quote blockquote { margin: 0 0 1rem; font-size: 1rem; color: var(--ink); }
.person { display: flex; align-items: center; gap: 0.7rem; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(145deg, #ff8fab, #3ecfcf); color: #fff; font-weight: 700;
}
.person small { color: var(--muted); }
.faq-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 2rem; }
.faq-item {
  border: 1px solid var(--line); background: #fff; border-radius: 18px;
  margin-bottom: 0.65rem; overflow: hidden;
}
.faq-question {
  width: 100%; display: flex; justify-content: space-between; gap: 1rem;
  padding: 1rem 1.1rem; border: 0; background: transparent;
  font: inherit; font-weight: 600; cursor: pointer; text-align: left;
}
.faq-answer { display: none; padding: 0 1.1rem 1rem; color: var(--muted); }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-question b { color: var(--accent); }
.cta-panel {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.7rem 1.9rem; color: #fff; border-radius: 24px;
  background: linear-gradient(120deg, #2a2438, #ff6b6b 55%, #3ecfcf);
}
.cta-panel h2 { margin: 0; font-size: clamp(1.5rem, 2.8vw, 2.2rem); }

.site-footer {
  background: #2a2438; color: rgba(255, 255, 255, 0.72); padding: 3rem 0 1.4rem;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 1.2rem; }
.footer-brand p { max-width: 32ch; color: rgba(255, 255, 255, 0.55); }
.footer-col h3 {
  margin: 0 0 0.7rem; font-family: var(--font-mono); font-size: 0.78rem;
  letter-spacing: 0.1em; color: #ffb38a;
}
.footer-col a { display: block; color: rgba(255, 255, 255, 0.68); margin: 0.35rem 0; font-size: 0.92rem; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  margin-top: 2rem; padding-top: 1rem; border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem; color: rgba(255, 255, 255, 0.42);
}

.page-hero {
  padding: 4rem 0 2.4rem;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(62, 207, 207, 0.28), transparent 45%),
    linear-gradient(180deg, #fff5f0, #fff8f5);
}
.page-hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2rem; align-items: center; }
.page-hero h1 { font-size: clamp(2.3rem, 5vw, 3.5rem); max-width: 12ch; }
.page-media {
  border-radius: 24px; border: 1px solid var(--line); overflow: hidden; box-shadow: var(--shadow);
}
.download-rows { display: grid; gap: 0.85rem; }
.download-row {
  display: grid; grid-template-columns: auto 1fr auto; gap: 1rem; align-items: center;
  padding: 1.15rem 1.25rem; background: #fff; border: 1px solid var(--line);
  border-radius: 20px; border-left: 4px solid var(--accent);
}
.help-hero .search-box { display: flex; gap: 0.6rem; margin-top: 1.2rem; max-width: 560px; }
.search-box input {
  flex: 1; min-height: 46px; padding: 0 1rem; border: 1px solid var(--line);
  border-radius: 999px; background: #fff; color: var(--ink);
}
.help-layout { display: grid; grid-template-columns: 220px 1fr; gap: 1.5rem; }
.help-nav {
  position: sticky; top: 88px; align-self: start; padding: 1rem;
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
}
.help-nav a {
  display: block; padding: 0.45rem 0; color: var(--muted); border-bottom: 1px solid var(--line);
}
.help-nav a:hover { color: var(--deep); }
.help-grid { grid-template-columns: repeat(2, 1fr); }
.help-card { color: inherit; transition: transform .2s ease; }
.help-card:hover { transform: translateY(-3px); }
.article-list { margin-top: 2.2rem; }
.article {
  display: grid; grid-template-columns: auto 1fr auto; gap: 1rem; align-items: center;
  padding: 1rem 1.1rem; margin-bottom: 0.7rem;
}
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .hero-grid, .collab-layout, .page-hero-grid, .faq-layout, .help-layout, .seam-banner,
  .aurora-rail, .download-grid, .feature-grid, .scene-grid, .pricing-grid,
  .quotes, .requirements, .help-grid, .footer-grid, .flow-wave { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .menu-toggle { display: inline-block; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; left: 0; right: 0; top: 68px;
    padding: 1rem 1.2rem 1.2rem; background: #fff; z-index: 60; border-bottom: 1px solid var(--line);
  }
  .presence-card { position: static; margin-top: 0.7rem; animation: none; }
  .download-row { grid-template-columns: 1fr; }
  .section-head, .cta-panel { flex-direction: column; align-items: flex-start; }
  .price-card.featured { transform: none; }
}
@media (max-width: 640px) {
  .hero-grid, .collab-layout, .page-hero-grid, .faq-layout, .help-layout, .seam-banner,
  .aurora-rail, .download-grid, .feature-grid, .scene-grid, .pricing-grid,
  .quotes, .requirements, .help-grid, .footer-grid, .flow-wave { grid-template-columns: 1fr; }
  .actions .btn, .download-card .btn, .download-row .btn {
    width: 100%; white-space: nowrap; word-break: keep-all; writing-mode: horizontal-tb;
  }
}

/* Hero media integrity — keep at end */
.hero-grid { align-items: center !important; }
.hero-visual, .hero-visual .app-window {
  align-self: center !important; height: auto !important; padding: 0 !important;
  margin-top: 0 !important; margin-bottom: 0 !important; overflow: visible !important;
}
.hero-visual img, .app-window img {
  display: block !important; width: 100% !important; height: auto !important;
  object-fit: contain !important; object-position: center !important;
  margin: 0 !important; padding: 0 !important; min-height: 0 !important; max-height: none !important;
  clip-path: none !important; transform: none !important;
}