/* ZiyouFly Official — style.css
   Design tokens from DESIGN.md: dark navy + mint palette, Manrope + Noto Sans SC */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css');

:root {
  /* ── Brand palette (DESIGN.md) ─────────────────────────────────── */
  --navy-950:    #061A2D;
  --navy-900:    #071E33;
  --teal-800:    #0B3C4D;
  --mint-500:    #3DE0B7;
  --mint-300:    #79EBD0;
  --surface:     #F8FAF8;
  --surface-muted: #EEF7F4;
  --text-dark:   #0A1D31;
  --text-light:  #F4F8F7;
  --text-muted:  #8FA4B3;
  --border:      #D9E4E2;
  /* ── Aliases ────────────────────────────────────────────────────── */
  --primary:     var(--mint-500);
  --primary-h:   var(--mint-300);
  --bg:          var(--surface);
  --text:        var(--text-dark);
  /* ── Radii ──────────────────────────────────────────────────────── */
  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   20px;
  --radius-xl:   28px;
  --radius-pill: 100px;
  /* ── Shadow ─────────────────────────────────────────────────────── */
  --shadow-card: 0 2px 16px rgba(10,29,49,.08), 0 1px 4px rgba(10,29,49,.05);
  --shadow-lg:   0 8px 40px rgba(10,29,49,.14);
  --shadow-mint: 0 4px 24px rgba(61,224,183,.18);
  /* ── Spacing ────────────────────────────────────────────────────── */
  --sp-xs:  8px;
  --sp-sm:  16px;
  --sp-md:  24px;
  --sp-lg:  48px;
  --sp-xl:  80px;
  --sp-2xl: 120px;
  /* ── Transition ─────────────────────────────────────────────────── */
  --tr: .18s ease;
}

/* ─── RESET ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; overflow-x: hidden; max-width: 100%; }
body {
  font-family: 'Manrope', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  font-size: 17px; line-height: 1.65; color: var(--text); background: var(--bg);
}
/* Chinese locale — set on body so font-family is *inherited* by children, not explicit.
   Inherited values lose to any explicit rule, so Font Awesome's
   .fa-solid/.fa-brands { font-family: "Font Awesome 6 Free/Brands" }
   still wins on icon elements. */
:lang(zh) body { font-family: 'Noto Sans SC', 'Microsoft YaHei', 'Manrope', sans-serif; }

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: none; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4 { margin-top: 0; line-height: 1.15; }
p { margin-top: 0; }

/* ─── HEADER ─────────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--navy-900);
  border-bottom: 1px solid rgba(61,224,183,.12);
  transition: background var(--tr), box-shadow var(--tr);
}
.site-header.scrolled {
  background: rgba(7,30,51,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 24px rgba(0,0,0,.25);
}
.nav {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center;
  padding: 0 var(--sp-lg); height: 68px; gap: var(--sp-sm);
}
.brand { display: flex; align-items: center; flex-shrink: 0; }
.logo { height: 36px; width: auto; max-width: 160px; object-fit: contain; }

.nav-links {
  display: flex; align-items: center; gap: 2px;
  flex: 1; justify-content: center;
}
.nav-links > li > a {
  color: rgba(244,248,247,.78); font-size: 15px; font-weight: 550;
  padding: 8px 14px; border-radius: var(--radius-sm);
  transition: color var(--tr), background var(--tr);
  white-space: nowrap;
}
.nav-links > li > a:hover { color: var(--mint-500); background: rgba(61,224,183,.08); }

.mobile-lang { display: none; }

.nav-right { display: flex; align-items: center; gap: var(--sp-sm); flex-shrink: 0; margin-left: auto; }

/* ─── DROPDOWN / LANG SWITCHER ───────────────────────────────────────────── */
.dropdown { position: relative; }
.dropdown-panel {
  position: absolute; top: 100%; right: 0;
  margin-top: 0; padding-top: 8px;
  display: none; min-width: 140px; z-index: 1000;
}
.dropdown-panel-inner {
  background: var(--navy-900); border: 1px solid rgba(61,224,183,.2);
  border-radius: var(--radius-md); overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.dropdown:hover .dropdown-panel,
.dropdown:focus-within .dropdown-panel { display: block; }
.dropdown-panel a {
  display: block; padding: 10px 18px;
  color: var(--text-light); font-size: 14px; font-weight: 500;
  transition: background var(--tr), color var(--tr); white-space: nowrap;
}
.dropdown-panel a:hover { background: rgba(61,224,183,.1); color: var(--mint-500); }

.lang-btn {
  background: none; border: 1px solid rgba(244,248,247,.25);
  color: rgba(244,248,247,.85); padding: 7px 14px;
  border-radius: var(--radius-sm); cursor: pointer;
  font-size: 14px; font-weight: 550; display: flex; align-items: center; gap: 7px;
  transition: border-color var(--tr), color var(--tr);
  font-family: inherit;
}
.lang-btn:hover { border-color: var(--mint-500); color: var(--mint-500); }

/* ─── CTA BUTTONS ────────────────────────────────────────────────────────── */
.btn-cta {
  background: var(--mint-500); color: var(--navy-950);
  padding: 10px 22px; border-radius: var(--radius-md);
  font-size: 15px; font-weight: 700; display: inline-block;
  transition: background var(--tr), box-shadow var(--tr), transform var(--tr);
  white-space: nowrap;
}
.btn-cta:hover { background: var(--mint-300); box-shadow: var(--shadow-mint); transform: translateY(-1px); }

.btn-cta-lg {
  background: var(--mint-500); color: var(--navy-950);
  padding: 16px 40px; border-radius: var(--radius-md);
  font-size: 17px; font-weight: 700; display: inline-block;
  transition: background var(--tr), box-shadow var(--tr), transform var(--tr);
}
.btn-cta-lg:hover { background: var(--mint-300); box-shadow: var(--shadow-mint); transform: translateY(-2px); }

.btn-outline-lg {
  background: transparent; color: var(--text-light);
  border: 2px solid rgba(244,248,247,.35);
  padding: 14px 36px; border-radius: var(--radius-md);
  font-size: 17px; font-weight: 600; display: inline-block;
  transition: border-color var(--tr), color var(--tr), background var(--tr);
}
.btn-outline-lg:hover { border-color: var(--mint-500); color: var(--mint-500); background: rgba(61,224,183,.06); }

.btn-price-cta {
  display: block; width: 100%; text-align: center;
  background: var(--mint-500); color: var(--navy-950);
  padding: 14px 24px; border-radius: var(--radius-md);
  font-size: 16px; font-weight: 700; margin-top: var(--sp-md);
  transition: background var(--tr), box-shadow var(--tr), transform var(--tr);
}
.btn-price-cta:hover { background: var(--mint-300); box-shadow: var(--shadow-mint); transform: translateY(-1px); }

/* ─── HAMBURGER ──────────────────────────────────────────────────────────── */
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--text-light); font-size: 22px; padding: 6px; order: 99;
}

/* ─── HERO ───────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy-950) 0%, #08263C 60%, var(--teal-800) 100%);
  color: var(--text-light); padding: var(--sp-2xl) 0;
  position: relative; overflow: hidden; min-height: min(900px, 100svh);
  display: flex; align-items: center;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(61,224,183,.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 var(--sp-lg);
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-lg);
  align-items: center; position: relative; width: 100%;
}
.hero-text { display: flex; flex-direction: column; gap: var(--sp-sm); }
.hero-text h1 {
  font-size: clamp(44px, 6vw, 80px); font-weight: 780;
  line-height: 1.02; color: var(--text-light); margin-bottom: 0;
  letter-spacing: -.02em;
}
.hero-text p { font-size: clamp(17px, 2vw, 20px); color: var(--text-muted); max-width: 520px; }
.hero-cta-group { display: flex; gap: var(--sp-sm); align-items: center; flex-wrap: wrap; margin-top: var(--sp-xs); }
.hero-note { font-size: 14px; color: var(--text-muted); display: flex; align-items: center; gap: 8px; margin-top: var(--sp-xs); }
.hero-note i { color: var(--mint-500); }

/* ─── HERO GLOBE (northline-assets/hero-globe.png) ─────────────────────────── */
.globe-wrap { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-globe-img {
  width: 100%; max-width: 620px; height: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 40px rgba(61,224,183,.18));
}
.hero-status-card {
  position: absolute; bottom: 12%; left: 4%;
  display: flex; align-items: center; gap: 12px;
  background: rgba(7,30,51,.92); border: 1px solid rgba(61,224,183,.35);
  border-radius: 16px; padding: 12px 18px;
  backdrop-filter: blur(8px); box-shadow: 0 4px 24px rgba(0,0,0,.3);
  pointer-events: none;
}
.status-dot {
  width: 18px; height: 18px; border-radius: 50%; flex-shrink: 0;
  background: var(--mint-500);
  box-shadow: 0 0 0 4px rgba(61,224,183,.25);
}
.status-label { color: var(--text-light); font-size: 14px; font-weight: 700; line-height: 1.3; }
.status-sub { color: var(--text-muted); font-size: 12px; line-height: 1.3; }
/* hero wave overlay */
.hero-wave {
  position: absolute; bottom: 0; left: 0; width: 100%;
  height: auto; pointer-events: none; opacity: .55;
  object-fit: cover;
}

/* ─── ANIMATIONS ─────────────────────────────────────────────────────────── */
@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: .7; }
  100% { transform: scale(1.8); opacity: 0; }
}
.pulse-ring { animation: pulse-ring 2.6s ease-out infinite; transform-origin: center; }
.pulse-delay { animation: pulse-ring 2.6s ease-out 1.3s infinite; transform-origin: center; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { opacity: 0; animation: fade-up .55s ease forwards; }
.fade-up.visible { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .pulse-ring, .pulse-delay { animation: none; }
  .fade-up { opacity: 1; animation: none; }
}

/* ─── TRUST BAR ──────────────────────────────────────────────────────────── */
.trust-bar {
  background: var(--surface-muted);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: var(--sp-md) var(--sp-sm);
}
.trust-bar-inner {
  display: flex; align-items: center; justify-content: center;
  gap: var(--sp-lg); flex-wrap: wrap;
}
.trust-item { text-align: center; }
.trust-num { font-size: 30px; font-weight: 800; color: var(--navy-900); display: block; line-height: 1; }
.trust-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; margin-top: 6px; display: block; }
.trust-divider { width: 1px; height: 44px; background: var(--border); }

/* ─── SECTIONS ───────────────────────────────────────────────────────────── */
.section { padding: var(--sp-2xl) 0; }
.section-dark { background: var(--navy-900); color: var(--text-light); }
.section-muted { background: var(--surface-muted); }
.container { max-width: 1280px; margin: 0 auto; padding: 0 var(--sp-lg); }
.section-head { margin-bottom: var(--sp-lg); }
.section-head h2 { font-size: clamp(32px, 4vw, 50px); font-weight: 780; margin-bottom: var(--sp-sm); }
.section-sub { font-size: 18px; color: var(--text-muted); max-width: 640px; margin-bottom: 0; }
.section-dark .section-sub { color: rgba(244,248,247,.65); }
.text-center { text-align: center; }
.text-center .section-sub { margin-left: auto; margin-right: auto; }

/* ─── FEATURES ───────────────────────────────────────────────────────────── */
.features-section { background: var(--surface); }
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-md);
  margin-top: var(--sp-lg);
}
.feature-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: var(--sp-lg) var(--sp-md);
  box-shadow: var(--shadow-card);
  transition: transform var(--tr), box-shadow var(--tr);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feat-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: rgba(61,224,183,.1); display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-md); border: 1px solid rgba(61,224,183,.2);
}
.feat-icon i { font-size: 22px; color: var(--mint-500); }
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--navy-900); margin-bottom: var(--sp-xs); }
.feature-card p { font-size: 15px; color: var(--text-muted); margin: 0; line-height: 1.6; }

/* ─── NETWORK ────────────────────────────────────────────────────────────── */
.network-section { padding: var(--sp-2xl) 0; }
.network-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-lg); align-items: center;
}
.network-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.server-map-img { width: 100%; max-width: 600px; height: auto; object-fit: contain; border-radius: var(--radius-lg); }
.network-content h2 { font-size: clamp(28px, 3.5vw, 42px); font-weight: 780; color: var(--text-light); margin-bottom: var(--sp-sm); }
.network-content > p { color: rgba(244,248,247,.7); margin-bottom: var(--sp-md); }
.check-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: var(--sp-lg); }
.check-list li { display: flex; align-items: flex-start; gap: 12px; color: rgba(244,248,247,.85); font-size: 16px; }
.check-list li i { color: var(--mint-500); margin-top: 2px; flex-shrink: 0; }

/* ─── PLATFORMS ──────────────────────────────────────────────────────────── */
.platforms-section { }
.platforms-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-xl); align-items: center;
}
.platforms-content { display: flex; flex-direction: column; gap: var(--sp-md); }
.platforms-content h2 { font-size: clamp(28px, 3.5vw, 44px); font-weight: 780; color: var(--text-dark); margin: 0; }
.platforms-content .section-sub { color: var(--text-muted); font-size: 17px; max-width: 480px; margin: 0; }
.platforms-icons {
  display: flex; flex-wrap: wrap; gap: var(--sp-md);
}
.platform-item {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  min-width: 64px;
}
.platform-item i { font-size: 28px; color: var(--navy-900); }
.platform-item span { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.platforms-visual { position: relative; display: flex; justify-content: flex-end; }
.device-mockup-wrap { position: relative; display: inline-block; }
.device-mockup-img { width: 100%; max-width: 560px; height: auto; object-fit: contain; }
/* app UI overlay card */
.app-ui-card {
  position: absolute; bottom: 14%; right: 4%;
  background: var(--navy-900); border-radius: 20px;
  padding: 24px 28px; min-width: 210px;
  box-shadow: 0 12px 48px rgba(0,0,0,.4);
  border: 1px solid rgba(61,224,183,.2);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.app-power-ring {
  width: 60px; height: 60px; border-radius: 50%;
  background: rgba(61,224,183,.12); border: 2px solid var(--mint-500);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 20px rgba(61,224,183,.3);
}
.app-power-ring i { font-size: 22px; color: var(--mint-500); }
.app-connected { font-size: 18px; font-weight: 700; color: var(--mint-500); letter-spacing: .01em; }
.app-latency { font-size: 13px; color: var(--text-muted); }
.app-server-row {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  border-top: 1px solid rgba(255,255,255,.08); padding-top: 10px; width: 100%; text-align: center;
}
.app-server-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
.app-server-val { font-size: 14px; font-weight: 600; color: var(--text-light); }
/* legacy grid kept for download page platform list */
.platforms-grid {
  display: flex; flex-wrap: wrap; gap: var(--sp-md); justify-content: center;
  margin: var(--sp-lg) 0;
}
.platform-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--sp-lg) var(--sp-md); text-align: center;
  box-shadow: var(--shadow-card);
  transition: transform var(--tr), box-shadow var(--tr);
}
.platform-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.platform-card i { font-size: 44px; color: var(--navy-900); margin-bottom: var(--sp-sm); display: block; }
.platform-card span { font-size: 16px; font-weight: 600; color: var(--text-dark); }
.cta-wrap { display: flex; justify-content: center; margin-top: var(--sp-lg); }

/* ─── PRICING ────────────────────────────────────────────────────────────── */
.pricing-section { background: var(--surface); }
.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-md);
  margin-top: var(--sp-lg); align-items: start;
}
.pricing-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-xl);
  padding: var(--sp-lg); box-shadow: var(--shadow-card); position: relative;
  transition: transform var(--tr), box-shadow var(--tr);
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card.featured {
  background: var(--navy-900); border-color: var(--mint-500);
  color: var(--text-light); box-shadow: var(--shadow-mint);
  transform: scale(1.03);
}
.pricing-card.featured:hover { transform: scale(1.03) translateY(-4px); }
.price-badge {
  display: inline-block; background: var(--mint-500); color: var(--navy-950);
  font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: var(--radius-pill);
  text-transform: uppercase; letter-spacing: .5px; margin-bottom: var(--sp-sm);
}
.pricing-card h3 { font-size: 18px; font-weight: 700; margin-bottom: var(--sp-sm); }
.pricing-card.featured h3 { color: var(--text-light); }
.price-amount { font-size: 42px; font-weight: 800; color: var(--navy-900); margin-bottom: var(--sp-md); line-height: 1; }
.pricing-card.featured .price-amount { color: var(--mint-500); }
.per-mo { font-size: 16px; font-weight: 500; color: var(--text-muted); margin-left: 4px; vertical-align: middle; }
.pricing-card.featured .per-mo { color: rgba(244,248,247,.55); }
.price-feats { display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--sp-md); }
.price-feats li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--text-muted); }
.pricing-card.featured .price-feats li { color: rgba(244,248,247,.75); }
.price-feats li i { color: var(--mint-500); flex-shrink: 0; margin-top: 2px; }
.pricing-card.featured .btn-price-cta { background: var(--mint-500); color: var(--navy-950); }
.pricing-card:not(.featured) .btn-price-cta { background: var(--navy-900); color: #fff; }
.pricing-card:not(.featured) .btn-price-cta:hover { background: var(--teal-800); box-shadow: none; }
.price-note { font-size: 14px; color: var(--text-muted); margin-top: var(--sp-md); }

/* ─── FAQ ────────────────────────────────────────────────────────────────── */
.faq-section { background: var(--surface); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 2px; }
.faq-item { border-radius: var(--radius-md); overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 18px var(--sp-md); cursor: pointer;
  font-size: 16px; font-weight: 600; color: var(--navy-900);
  display: flex; justify-content: space-between; align-items: center;
  transition: background var(--tr), border-color var(--tr); gap: var(--sp-sm);
  font-family: inherit;
}
.faq-q:hover { background: var(--surface-muted); border-color: var(--mint-500); }
.faq-icon { transition: transform var(--tr); flex-shrink: 0; color: var(--text-muted); font-size: 14px; }
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-item.open .faq-q { border-color: var(--mint-500); background: var(--surface-muted); }
.faq-a {
  display: none; padding: var(--sp-md) var(--sp-md) var(--sp-md);
  background: var(--surface-muted);
  border: 1px solid var(--border); border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}
.faq-a p { color: var(--text-muted); margin: 0; font-size: 15px; line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* ─── FINAL CTA — inset card ─────────────────────────────────────────────── */
.cta-final-section { padding: var(--sp-2xl) 0; }
.cta-final-card {
  background: var(--navy-900);
  border-radius: 28px;
  padding: 60px 72px;
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-lg);
  position: relative; overflow: hidden;
}
.cta-card-text { flex: 1; position: relative; z-index: 2; }
.cta-card-text h2 {
  font-size: clamp(26px, 3.5vw, 40px); font-weight: 780;
  color: var(--text-light); margin-bottom: 14px;
}
.cta-card-text p {
  color: rgba(244,248,247,.72); font-size: 17px; line-height: 1.6; margin-bottom: 6px;
}
.cta-card-text p:last-child { margin-bottom: 0; }
.cta-card-btn { flex-shrink: 0; position: relative; z-index: 2; }
/* cta-orbits.png bleeds off right */
.cta-orbits-img {
  position: absolute; right: -60px; top: 50%; transform: translateY(-50%);
  width: 55%; max-width: 600px; height: auto;
  object-fit: contain; pointer-events: none; opacity: .45;
}

/* ─── PAGE HERO DARK ─────────────────────────────────────────────────────── */
.page-hero-dark {
  background: var(--navy-900);
  padding: var(--sp-xl) 0;
  position: relative; overflow: hidden;
}
.page-hero-dark::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(61,224,183,.06) 0%, transparent 70%);
}
.page-hero-dark h1 {
  font-size: clamp(36px, 5vw, 56px); font-weight: 780; color: var(--text-light);
  margin-bottom: var(--sp-sm); position: relative;
}
.page-hero-dark p { font-size: 18px; color: var(--text-muted); max-width: 640px; position: relative; margin-bottom: 0; }
.page-hero-dark .container { position: relative; }

/* ─── DOWNLOAD PAGE ──────────────────────────────────────────────────────── */
.dl-plat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-md);
  margin-top: var(--sp-lg);
}
.dl-plat-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--sp-lg) var(--sp-md); text-align: center; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; align-items: center; gap: var(--sp-sm);
}
.dl-plat-card i { font-size: 48px; color: var(--navy-900); }
.dl-plat-card span { font-size: 18px; font-weight: 700; color: var(--text-dark); }

.steps-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-md); margin-top: var(--sp-lg);
}
.step-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--sp-lg); box-shadow: var(--shadow-card); position: relative;
}
.step-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--mint-500); color: var(--navy-950);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800; margin-bottom: var(--sp-sm);
}
.step-card h3 { font-size: 18px; font-weight: 700; color: var(--navy-900); margin-bottom: var(--sp-xs); }
.step-card p  { font-size: 15px; color: var(--text-muted); margin: 0; }

.compat-table { width: 100%; border-collapse: collapse; margin-top: var(--sp-lg); }
.compat-table tr { border-bottom: 1px solid var(--border); }
.compat-table td { padding: 14px var(--sp-sm); font-size: 15px; color: var(--text-dark); }
.compat-table td:first-child { color: var(--navy-900); width: 35%; }

/* ─── CONTACT PAGE ───────────────────────────────────────────────────────── */
.channels-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-md); margin-top: var(--sp-lg);
}
.channel-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--sp-lg) var(--sp-md); box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: var(--sp-sm);
}
.chan-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: rgba(61,224,183,.1); display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(61,224,183,.2);
}
.chan-icon i { font-size: 22px; color: var(--mint-500); }
.channel-card h3 { font-size: 18px; font-weight: 700; color: var(--navy-900); margin: 0; }
.channel-card p { font-size: 15px; color: var(--text-muted); margin: 0; flex: 1; }

/* ─── PROSE (privacy/terms) ──────────────────────────────────────────────── */
.prose-inner { max-width: 840px; margin: 0 auto; }
.prose-inner div { margin-bottom: var(--sp-lg); }
.prose-inner h2 { font-size: 22px; font-weight: 700; color: var(--navy-900); margin-bottom: var(--sp-sm); }
.prose-inner p { font-size: 16px; color: var(--text-muted); line-height: 1.75; }

/* ─── FOOTER ─────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy-950);
  color: rgba(244,248,247,.7);
  padding-top: var(--sp-xl);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--sp-lg);
  padding-bottom: var(--sp-xl);
  border-bottom: 1px solid rgba(61,224,183,.1);
}
.logo-footer { height: 32px; width: auto; max-width: 140px; object-fit: contain; margin-bottom: var(--sp-sm); }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 280px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--text-light); text-transform: uppercase; letter-spacing: .5px; margin-bottom: var(--sp-sm); }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 14px; color: rgba(244,248,247,.6); transition: color var(--tr); }
.footer-col ul li a:hover { color: var(--mint-500); }
.footer-bottom { padding: var(--sp-md) 0; text-align: center; font-size: 13px; }

/* ─── HEADER SCROLLED (JS sets class) ──────────────────────────────────── */

/* ─── MOBILE MENU ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* §11: remove right padding so hamburger reaches nav edge */
  .nav { position: relative; padding: 0 0 0 var(--sp-sm); }
  .nav-links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: center;
    height: auto; max-height: none; overflow: visible;
    background: var(--navy-900);
    border-bottom: 1px solid rgba(61,224,183,.12);
    box-shadow: 0 8px 24px rgba(0,0,0,.25);
    padding: var(--sp-sm) 0; z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links > li { width: 100%; }
  .nav-links > li:not(.mobile-lang) > a { display: block; width: 100%; text-align: center; padding: 14px 0; font-size: 16px; border-radius: 0; }
  /* §12: keep language links inline and single-line inside mobile menu */
  .mobile-lang { display: flex; justify-content: center; gap: var(--sp-sm); padding: var(--sp-sm) 0; width: 100%; }
  .nav-links .mobile-lang > a { display: inline-flex; width: auto; padding: 0 12px; white-space: nowrap; font-size: 14px; font-weight: 600; line-height: 2.5; border-radius: var(--radius-sm); color: rgba(244,248,247,.65); transition: color var(--tr); text-align: center; }
  .nav-links .mobile-lang > a.active,
  .nav-links .mobile-lang > a:hover { color: var(--mint-500); }
  .nav-right .lang-switcher { display: none; }
  /* §14: hide header CTA on mobile so pageCtas only has page-content CTAs */
  .nav-right .btn-cta { display: none; }
  .nav-right { margin-left: auto; gap: 0; }
  /* §11: give toggle its own right padding so right edge is flush with nav */
  .nav-toggle { display: block; padding-left: var(--sp-xs); padding-right: var(--sp-sm); }
}

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-plat-grid { grid-template-columns: repeat(2, 1fr); }
  .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .channels-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .globe-wrap { order: -1; }
  .hero-globe-img { max-width: 360px; margin: 0 auto; }
  .hero-status-card { bottom: 6%; left: 8%; }
  .hero-text { align-items: center; text-align: center; }
  .hero-text p { margin-left: auto; margin-right: auto; }
  .hero-note { justify-content: center; }
  .network-inner { grid-template-columns: 1fr; }
  .server-map-img { max-width: 100%; }
  .platforms-inner { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .platforms-content { align-items: center; text-align: center; }
  .platforms-icons { justify-content: center; }
  .platforms-content .section-sub { margin: 0 auto; }
  .platforms-visual { justify-content: center; }
  .device-mockup-img { max-width: 460px; margin: 0 auto; }
  .cta-final-card { flex-direction: column; text-align: center; padding: 48px 40px; }
  .cta-orbits-img { display: none; }
  .cta-wrap { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: var(--sp-lg) auto 0; }
  .pricing-card.featured { transform: scale(1); }
  .pricing-card.featured:hover { transform: translateY(-4px); }
}

@media (max-width: 768px) {
  .nav { height: 60px; }
  .section { padding: var(--sp-xl) 0; }
  .container { padding: 0 var(--sp-sm); }
  .hero { padding: var(--sp-xl) 0; min-height: auto; }
  .hero-inner { padding: 0 var(--sp-sm); }
  .trust-bar-inner { gap: var(--sp-md); }
  .trust-divider { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .dl-plat-grid { grid-template-columns: repeat(2, 1fr); }
  .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .platforms-inner { gap: var(--sp-md); }
  .device-mockup-img { max-width: 360px; }
  .app-ui-card { right: 0; bottom: 8%; min-width: 170px; padding: 18px 20px; gap: 8px; }
  .app-power-ring { width: 48px; height: 48px; }
  .app-power-ring i { font-size: 18px; }
  .app-connected { font-size: 15px; }
  .cta-final-card { padding: 40px 28px; }
  .channels-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-md); }
  /* CTA centering on mobile */
  .btn-cta, .btn-cta-lg, .btn-outline-lg, .btn-price-cta {
    display: block; margin-left: auto; margin-right: auto;
    text-align: center; width: max-content; max-width: 90%;
  }
  .hero-cta-group { justify-content: center; }
  .cta-wrap { display: flex; justify-content: center; width: 100%; }
  .dl-plat-card .btn-cta { margin-top: var(--sp-xs); width: 100%; max-width: 100%; }
  .channel-card .btn-cta { width: 100%; max-width: 100%; }
  .page-hero-dark { padding: var(--sp-lg) 0; }
}

@media (max-width: 480px) {
  .hero-wave { display: none; }
  .device-mockup-img { max-width: 100%; }
  .hero-text h1 { font-size: 38px; }
  .dl-plat-grid { grid-template-columns: 1fr; }
  .platforms-grid { grid-template-columns: 1fr; }
}