/* Deep ocean blue · stable secure cloud sync WPS Office官网 */
:root {
  --bg: #071525;
  --bg-soft: #0c2438;
  --ink: #e6f2f8;
  --muted: #7f9bb0;
  --line: rgba(30, 107, 154, 0.22);
  --accent: #1a6b9a;
  --accent-2: #2ec4b6;
  --deep: #041018;
  --panel: rgba(10, 30, 48, 0.92);
  --dark: #041018;
  --ok: #2ec4b6;
  --violet: #5ec8e8;
  --cyan: #3aa8d4;
  --radius: 14px;
  --shadow: 0 0 40px rgba(26, 107, 154, 0.32);
  --font-display: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-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 12% 8%, rgba(26, 107, 154, 0.32), transparent 42%),
    radial-gradient(ellipse at 88% 0%, rgba(46, 196, 182, 0.2), transparent 40%),
    radial-gradient(ellipse at 50% 70%, rgba(58, 168, 212, 0.1), transparent 50%),
    linear-gradient(180deg, #041018 0%, #071525 45%, #0b2236 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(7, 11, 24, 0.86);
  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-2);
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em;
}
.logo-mark {
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(145deg, #2ec4b6, #1a6b9a 55%, #5ec8e8);
  box-shadow: 0 0 18px rgba(46, 196, 182, 0.45);
}
.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: #fff; text-shadow: 0 0 12px rgba(46, 196, 182, 0.55); }
.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, #2ec4b6, #1a6b9a 50%, #5ec8e8);
  color: #041018; font-weight: 700;
  white-space: nowrap; word-break: keep-all; writing-mode: horizontal-tb;
  box-shadow: 0 0 28px rgba(26, 107, 154, 0.45);
  transition: transform .2s ease, box-shadow .2s ease;
}
.nav-cta:hover, .btn:hover { transform: translateY(-1px); box-shadow: 0 0 36px rgba(46, 196, 182, 0.55); }
.btn-secondary {
  background: transparent; color: var(--accent-2);
  border: 1.5px solid rgba(46, 196, 182, 0.45); box-shadow: none;
}
.section-dark .btn-secondary, .cta-panel .btn-secondary, .hero .btn-secondary {
  color: #fff; border-color: rgba(255, 255, 255, 0.35);
}
.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: var(--panel); border-radius: 10px;
}
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: var(--ink); }

.hero { padding: 4.2rem 0 2.6rem; position: relative; overflow: clip; }
.hero.ocean-surface::before {
  content: ""; position: absolute; inset: -8% -5% auto -5%; height: 75%;
  background:
    radial-gradient(ellipse at 25% 40%, rgba(26, 107, 154, 0.45), transparent 55%),
    radial-gradient(ellipse at 70% 20%, rgba(46, 196, 182, 0.35), transparent 50%),
    radial-gradient(ellipse at 55% 75%, rgba(58, 168, 212, 0.28), transparent 55%);
  filter: blur(10px); animation: oceanPulse 7s ease-in-out infinite alternate;
  pointer-events: none; z-index: 0;
}
@keyframes oceanPulse {
  from { opacity: 0.75; transform: scale(1); }
  to { opacity: 1; transform: scale(1.05); }
}
.hero-grid, .hero-copy, .hero-visual { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 2.2rem; align-items: center; }
.live-badge {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.35rem 0.75rem; margin-bottom: 1rem;
  border: 1px solid rgba(46, 196, 182, 0.35); border-radius: 999px;
  background: rgba(16, 22, 48, 0.85);
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--accent-2);
  box-shadow: 0 0 16px rgba(46, 196, 182, 0.2);
}
.live-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #2ec4b6;
  box-shadow: 0 0 0 4px rgba(46, 196, 182, 0.25);
  animation: pulseDot 1.6s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1, .title, .page-hero h1 {
  margin: 0 0 0.85rem; font-family: var(--font-display);
  font-weight: 800; line-height: 1.12; letter-spacing: -0.02em;
  color: #fff;
}
.hero h1 { font-size: clamp(2.4rem, 5.2vw, 3.7rem); max-width: 12ch; }
.hero h1 span, .title span, .page-hero h1 span {
  background: linear-gradient(90deg, #2ec4b6, #5ec8e8);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-copy p, .intro {
  margin: 0 0 1.2rem; color: var(--muted); max-width: 46ch; font-size: 1.02rem;
}
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.1rem; }
.trust-row { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.trust-row span {
  padding: 0.28rem 0.65rem; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(16, 22, 48, 0.75); color: var(--muted); font-size: 0.82rem;
}
.app-window {
  border-radius: 16px; overflow: hidden; border: 1px solid rgba(26, 107, 154, 0.35);
  background: #0c2438; box-shadow: 0 0 40px rgba(26, 107, 154, 0.32);
}
.window-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.8rem; padding: 0.55rem 0.8rem; background: #0a2034; color: rgba(232, 236, 255, 0.65);
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em;
}
.window-dots { display: flex; gap: 0.35rem; }
.window-dots i { width: 8px; height: 8px; border-radius: 50%; background: #1a6b9a; display: block; }
.window-dots i:nth-child(1) { background: #2ec4b6; }
.window-dots i:nth-child(2) { background: #2ec4b6; }
.window-dots i:nth-child(3) { background: #5ec8e8; }
.hero-visual { position: relative; }
.presence-card {
  position: absolute; padding: 0.75rem 0.9rem;
  background: rgba(12, 18, 42, 0.92); border: 1px solid rgba(46, 196, 182, 0.35);
  border-radius: 12px; box-shadow: 0 0 24px rgba(46, 196, 182, 0.2);
  animation: floatCard 4.5s ease-in-out infinite;
}
.presence-one { left: -0.6rem; bottom: 1.2rem; }
.presence-two { right: -0.4rem; top: 1.4rem; animation-delay: 1.2s; }
.presence-card strong { display: block; font-size: 0.92rem; color: #fff; }
.presence-card small { color: var(--muted); font-size: 0.78rem; }
.presence-avatars { display: flex; margin-top: 0.45rem; }
.presence-avatars span {
  width: 26px; height: 26px; margin-right: -6px; border-radius: 50%;
  display: grid; place-items: center; font-size: 0.7rem; color: #041018;
  background: linear-gradient(145deg, #2ec4b6, #1a6b9a); border: 2px solid #0c2438;
}
.sync-line {
  margin-top: 0.5rem; height: 3px; border-radius: 999px;
  background: linear-gradient(90deg, #2ec4b6, #1a6b9a, transparent);
  box-shadow: 0 0 10px rgba(46, 196, 182, 0.6);
  animation: syncSweep 2.2s linear infinite;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes syncSweep {
  from { opacity: 0.55; }
  to { opacity: 1; }
}

.ocean-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.7rem;
  margin: 0.4rem auto 1.2rem;
}
.ocean-strip span {
  display: grid; gap: 0.15rem; padding: 0.85rem 1rem;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--cyan);
  box-shadow: inset 0 0 20px rgba(26, 107, 154, 0.08);
}
.ocean-strip strong { font-family: var(--font-body); font-size: 0.95rem; color: #fff; }
.ocean-band {
  height: 3px; margin: 0 auto 1.4rem; border-radius: 999px;
  background: linear-gradient(90deg, transparent, #2ec4b6, #1a6b9a, #5ec8e8, transparent);
  box-shadow: 0 0 16px rgba(26, 107, 154, 0.55);
}
.tide-rail {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem;
  margin: 0 auto 1.6rem;
}
.tide-rail article {
  padding: 1rem 1.05rem; background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  position: relative; overflow: hidden;
}
.tide-rail article::after {
  content: ""; position: absolute; right: -10px; top: -10px; width: 54px; height: 54px;
  border: 3px solid rgba(46, 196, 182, 0.35); border-radius: 50%;
  border-top-color: #2ec4b6; border-right-color: #1a6b9a;
}
.tide-rail b {
  display: block; margin-bottom: 0.35rem;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: var(--accent-2);
}
.tide-rail strong { display: block; margin-bottom: 0.25rem; font-size: 1rem; color: #fff; }
.tide-rail span { color: var(--muted); font-size: 0.88rem; }
.ocean-banner {
  display: grid; grid-template-columns: 1.4fr 0.6fr; gap: 1rem;
  margin: 0 auto 1.8rem; padding: 1.4rem 1.5rem;
  background: linear-gradient(120deg, #0a2034, #0f4a68 55%, #156080);
  color: #fff; border-radius: 16px; border: 1px solid rgba(26, 107, 154, 0.35);
  box-shadow: var(--shadow);
}
.ocean-banner small {
  display: block; margin-bottom: 0.45rem;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--cyan);
}
.ocean-banner strong { font-size: clamp(1.4rem, 2.5vw, 1.9rem); line-height: 1.25; }
.ocean-banner p { margin: 0.6rem 0 0; color: rgba(232, 236, 255, 0.7); max-width: 42ch; }
.ocean-banner .tap {
  display: grid; place-items: center; border-left: 1px solid rgba(255, 255, 255, 0.12);
}
.ocean-banner .tap div { text-align: center; font-family: var(--font-mono); letter-spacing: 0.08em; }
.ocean-banner .tap b {
  display: block; font-size: 2.4rem; line-height: 1;
  background: linear-gradient(90deg, #2ec4b6, #5ec8e8);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ocean-lane { display: flex; flex-wrap: wrap; gap: 0.55rem; margin: 0 auto 2rem; }
.ocean-lane span {
  padding: 0.55rem 0.85rem; background: var(--panel); border: 1px solid var(--line);
  border-radius: 999px; font-size: 0.88rem; color: var(--muted);
}
.ocean-lane .hub {
  background: linear-gradient(120deg, rgba(46, 196, 182, 0.2), rgba(26, 107, 154, 0.35));
  color: #fff; border-color: rgba(46, 196, 182, 0.4);
}
.ocean-lane b { margin-right: 0.35rem; font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent-2); }

.section { padding: 5.2rem 0; position: relative; }
.section-white { background: rgba(10, 16, 36, 0.72); }
.section-dark {
  color: #fff;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(26, 107, 154, 0.25), transparent 45%),
    linear-gradient(160deg, #041018 0%, #0e3a55 55%, #082438 100%);
}
.section-head {
  display: flex; justify-content: space-between; gap: 1.5rem; align-items: end;
  margin-bottom: 1.8rem;
}
.eyebrow {
  display: inline-flex; margin: 0 0 0.55rem;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em;
  color: var(--accent-2); text-transform: uppercase;
}
.title { font-size: clamp(1.8rem, 3.4vw, 2.6rem); max-width: 14ch; }
.section-dark .intro { color: rgba(232, 236, 255, 0.7); }

.feature-grid, .download-grid, .scene-grid, .pricing-grid, .quotes, .requirements, .help-grid {
  display: grid; gap: 1rem;
}
.feature-grid { grid-template-columns: repeat(3, 1fr); }
.download-grid, .quotes, .pricing-grid, .requirements { grid-template-columns: repeat(3, 1fr); }
.download-grid { grid-template-columns: repeat(4, 1fr); }
.scene-grid { grid-template-columns: repeat(3, 1fr); }

.feature-card, .download-card, .scene-card, .price-card, .quote, .requirement, .help-card, .article {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
}
.section-dark .download-card {
  background: rgba(255, 255, 255, 0.04); border-color: rgba(26, 107, 154, 0.25); color: #fff;
}
.section-dark .download-card p { color: rgba(232, 236, 255, 0.68); }
.feature-card { position: relative; overflow: hidden; }
.feature-card:hover { border-color: rgba(46, 196, 182, 0.45); box-shadow: 0 0 24px rgba(26, 107, 154, 0.2); }
.card-presence {
  position: absolute; top: 0.85rem; right: 0.9rem;
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--violet);
}
.feature-icon, .platform {
  width: 42px; height: 42px; margin-bottom: 0.75rem; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(145deg, rgba(46, 196, 182, 0.2), rgba(26, 107, 154, 0.35));
  color: #2ec4b6; font-weight: 700; font-family: var(--font-mono); font-size: 0.85rem;
  box-shadow: 0 0 16px rgba(46, 196, 182, 0.25);
}
.feature-card h3, .download-card h3, .scene-card h3, .price-card h3 { margin: 0 0 0.45rem; font-size: 1.08rem; color: #fff; }
.feature-card p, .download-card p, .scene-card p, .price-card li { color: var(--muted); }
.platform {
  width: auto; min-width: 42px; padding: 0 0.55rem; margin-bottom: 0.7rem;
}

.scene-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.scene-card img { width: 100%; height: auto; display: block; }
.scene-copy { padding: 1.05rem 1.15rem; }
.scene-copy small {
  display: block; margin-bottom: 0.35rem;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; color: var(--accent-2);
}
.scene-graphic {
  min-height: 140px; margin: 0 1.15rem 1.15rem; border-radius: 10px;
  background:
    radial-gradient(circle at 30% 40%, rgba(46, 196, 182, 0.35), transparent 45%),
    radial-gradient(circle at 70% 60%, rgba(26, 107, 154, 0.4), transparent 50%),
    linear-gradient(135deg, #0a2034, #0f4a68);
}

.quote { position: relative; }
.quote-status {
  display: inline-block; margin-bottom: 0.7rem;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; color: var(--accent-2);
}
.quote blockquote { margin: 0 0 1rem; font-size: 1rem; line-height: 1.6; color: #fff; }
.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, #2ec4b6, #1a6b9a); color: #041018; font-weight: 700;
  box-shadow: 0 0 14px rgba(46, 196, 182, 0.4);
}
.person strong { display: block; font-size: 0.95rem; color: #fff; }
.person small { color: var(--muted); font-size: 0.8rem; }

.price-card .plan {
  display: inline-block; margin-bottom: 0.5rem;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: var(--accent-2);
}
.price { margin: 0.4rem 0 0.9rem; font-size: 1.7rem; font-weight: 700; color: #fff; }
.price small { font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.price-card ul { margin: 0 0 1.1rem; padding-left: 1.1rem; }
.price-card li { margin: 0.35rem 0; }
.price-card.featured {
  transform: translateY(-8px);
  border: 1px solid rgba(46, 196, 182, 0.55);
  box-shadow: 0 0 36px rgba(26, 107, 154, 0.35);
  background: linear-gradient(180deg, rgba(26, 20, 80, 0.95), rgba(12, 18, 42, 0.98));
}

.collab-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
.collab-media {
  border-radius: 14px; overflow: hidden; border: 1px solid rgba(26, 107, 154, 0.35); position: relative;
  box-shadow: var(--shadow);
}
.floating-note {
  position: absolute; left: 1rem; bottom: 1rem;
  padding: 0.55rem 0.8rem; background: rgba(7, 11, 24, 0.9); color: #fff;
  border-radius: 8px; font-family: var(--font-mono); font-size: 0.72rem;
  border: 1px solid rgba(46, 196, 182, 0.35);
}
.floating-note span { color: var(--accent-2); margin-right: 0.35rem; }
.check-list { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.check-list li { margin: 0.4rem 0; }

.faq-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 2rem; align-items: start; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); margin-bottom: 0.65rem; overflow: hidden; }
.faq-question {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 0.95rem 1.05rem; border: 0; background: transparent; color: #fff;
  font-weight: 600; text-align: left; cursor: pointer;
}
.faq-answer { display: none; padding: 0 1.05rem 1rem; color: var(--muted); }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-question b { color: var(--accent-2); }
.cta-panel {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.7rem 1.9rem; color: #fff; border-radius: 16px;
  background: linear-gradient(120deg, #0a2034, #1a6b9a 55%, #2ec4b6);
  box-shadow: var(--shadow);
}
.cta-panel h2 { margin: 0; font-size: clamp(1.5rem, 2.8vw, 2.2rem); }

.site-footer {
  background: #041018; color: rgba(232, 236, 255, 0.68); padding: 3rem 0 1.4rem;
  border-top: 1px solid var(--line);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 1.2rem; }
.footer-brand p { max-width: 32ch; color: rgba(232, 236, 255, 0.5); }
.footer-col h3 {
  margin: 0 0 0.7rem; font-family: var(--font-mono); font-size: 0.78rem;
  letter-spacing: 0.1em; color: var(--accent-2);
}
.footer-col a { display: block; color: rgba(232, 236, 255, 0.65); 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, 0.08);
  font-size: 0.85rem; color: rgba(232, 236, 255, 0.4);
}

.page-hero {
  padding: 4rem 0 2.4rem;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(26, 107, 154, 0.32), transparent 45%),
    linear-gradient(180deg, #041018, #071525);
}
.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: 16px; border: 1px solid rgba(26, 107, 154, 0.35); 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: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; border-left: 4px solid var(--accent-2);
}
.download-row h2 { margin: 0 0 0.25rem; color: #fff; font-size: 1.1rem; }
.download-row p { margin: 0; color: var(--muted); }
.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: var(--panel); 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: var(--panel); border: 1px solid var(--line); border-radius: 14px;
}
.help-nav a {
  display: block; padding: 0.45rem 0; color: var(--muted); border-bottom: 1px solid var(--line);
}
.help-nav a:hover { color: #fff; }
.help-grid { grid-template-columns: repeat(2, 1fr); }
.help-card { color: inherit; transition: transform .2s ease; }
.help-card:hover { transform: translateY(-3px); }
.help-card h2 { color: #fff; margin: 0.4rem 0; font-size: 1.1rem; }
.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;
}
.article h3 { margin: 0 0 0.25rem; color: #fff; font-size: 1rem; }
.article p { margin: 0; color: var(--muted); }
.article-num {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent-2); font-weight: 700;
}
.requirement h3 { margin: 0 0 0.4rem; color: #fff; }
.requirement p { margin: 0; color: var(--muted); }
.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, .ocean-banner,
  .tide-rail, .download-grid, .feature-grid, .scene-grid, .pricing-grid,
  .quotes, .requirements, .help-grid, .footer-grid, .ocean-strip { 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: #0a2034; 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, .ocean-banner,
  .tide-rail, .download-grid, .feature-grid, .scene-grid, .pricing-grid,
  .quotes, .requirements, .help-grid, .footer-grid, .ocean-strip { 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;
}