/* ==========================================================================
   Phone Box Farm - Global Stylesheet
   ========================================================================== */

/* ---------- CSS Variables ---------- */
:root {
  /* Colors - Primary Palette */
  --color-bg: #060d1a;
  --color-bg-2: #0A1628;
  --color-surface: #121f3a;
  --color-surface-2: #1a2a4d;
  --color-border: #24365d;
  --color-border-light: #2e4370;

  --color-primary: #0066FF;
  --color-primary-600: #0057d9;
  --color-primary-400: #3b82f6;
  --color-primary-200: #93c5fd;

  --color-green: #10B981;
  --color-orange: #F97316;
  --color-red: #EF4444;
  --color-purple: #8b5cf6;
  --color-cyan: #06b6d4;

  /* Text */
  --color-text: #e8edf7;
  --color-text-soft: #b5c3dd;
  --color-text-muted: #8ea3c9;
  --color-text-dim: #6b82a8;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #0066FF 0%, #60a5fa 100%);
  --grad-primary-2: linear-gradient(135deg, #0052cc 0%, #0084ff 50%, #4cb3ff 100%);
  --grad-bg: radial-gradient(1200px 700px at 15% -10%, #0e2450 0%, transparent 60%),
             radial-gradient(1000px 600px at 95% 10%, #0a2a55 0%, transparent 55%),
             linear-gradient(180deg, #060d1a 0%, #0A1628 100%);
  --grad-hero: radial-gradient(800px 500px at 20% 30%, rgba(0, 102, 255, 0.28) 0%, transparent 70%),
               radial-gradient(700px 500px at 80% 20%, rgba(6, 182, 212, 0.18) 0%, transparent 65%);

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --fs-xxs: 11px;
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 15.5px;
  --fs-md: 17px;
  --fs-lg: 19px;
  --fs-xl: 22px;
  --fs-2xl: 28px;
  --fs-3xl: 36px;
  --fs-4xl: 48px;
  --fs-5xl: 64px;

  /* Spacing */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
  --sp-5: 20px; --sp-6: 24px; --sp-8: 32px; --sp-10: 40px;
  --sp-12: 48px; --sp-16: 64px; --sp-20: 80px; --sp-24: 96px;

  /* Effects */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-2xl: 28px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.35);
  --shadow: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 50px -10px rgba(0,0,0,0.55);
  --shadow-glow: 0 0 0 3px rgba(0,102,255,0.25), 0 12px 36px rgba(0,102,255,0.35);

  --transition: 220ms cubic-bezier(.4,.0,.2,1);
  --transition-slow: 420ms cubic-bezier(.2,.8,.2,1);

  --container: 1220px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, video { max-width: 100%; display: block; }
a { color: var(--color-primary-400); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-200); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); line-height: 1.2; letter-spacing: -0.01em; color: var(--color-text); font-weight: 700; }

::selection { background: rgba(0,102,255,0.4); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg-2); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary-600); }

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}
.container.small { max-width: 820px; }

.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary-200);
  margin-bottom: var(--sp-3);
}
.eyebrow.small { font-size: var(--fs-xxs); letter-spacing: 0.18em; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-sm);
  line-height: 1;
  border-radius: var(--radius);
  padding: 12px 20px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
  user-select: none;
  border: 1.5px solid transparent;
}
.btn svg { flex-shrink: 0; }
.btn-sm { padding: 9px 16px; font-size: var(--fs-xs); }
.btn-lg { padding: 15px 26px; font-size: var(--fs-base); border-radius: 12px; }
.btn-xl { padding: 17px 30px; font-size: var(--fs-md); border-radius: 14px; }
.btn-xxl { padding: 20px 34px; font-size: var(--fs-lg); border-radius: 16px; }

.btn-primary {
  background: var(--grad-primary-2);
  color: #fff;
  box-shadow: 0 6px 20px rgba(0,102,255,0.35), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,102,255,0.5), inset 0 1px 0 rgba(255,255,255,0.2);
  color: #fff;
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  border-color: var(--color-border-light);
  color: var(--color-text);
}
.btn-outline:hover {
  border-color: var(--color-primary-400);
  color: var(--color-primary-200);
  background: rgba(0,102,255,0.07);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.18);
  color: #fff;
  backdrop-filter: blur(10px);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.35);
  transform: translateY(-2px);
  color: #fff;
}

/* ---------- Header / Nav ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 14px 0;
  transition: background var(--transition), backdrop-filter var(--transition), padding var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(6, 13, 26, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: rgba(36, 54, 93, 0.7);
  padding: 10px 0;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  color: var(--color-text);
}
.logo:hover { color: #fff; }
.logo-icon { display: inline-flex; }
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-md);
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #fff 0%, #c7dcff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--color-text); background: rgba(255,255,255,0.04); }
.nav-link.active { color: #fff; background: rgba(0,102,255,0.15); }

.nav-actions { display: flex; align-items: center; gap: var(--sp-3); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
}
.menu-toggle:hover { background: rgba(255,255,255,0.06); }
.menu-toggle span {
  width: 22px;
  height: 2.5px;
  background: var(--color-text);
  border-radius: 3px;
  transition: transform var(--transition), opacity var(--transition);
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 150px 0 var(--sp-24);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-gradient {
  position: absolute; inset: 0;
  background: var(--grad-bg), var(--grad-hero);
}
.hero-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.45;
  animation: float 9s ease-in-out infinite;
}
.glow-1 { background: #0066FF; top: -120px; left: -100px; }
.glow-2 { background: #06b6d4; bottom: -160px; right: -120px; animation-delay: -4s; }
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -40px) scale(1.05); }
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,102,255,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,102,255,0.07) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 30%, transparent 80%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: rgba(0,102,255,0.12);
  border: 1px solid rgba(0,102,255,0.35);
  border-radius: 999px;
  font-size: var(--fs-xs);
  color: var(--color-primary-200);
  margin-bottom: var(--sp-5);
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--color-green);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(16,185,129,0.18);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 4px rgba(16,185,129,0.18); }
  50% { box-shadow: 0 0 0 8px rgba(16,185,129,0.05); }
}
.hero-title {
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin-bottom: var(--sp-6);
  font-weight: 700;
}
.hero-desc {
  font-size: var(--fs-md);
  line-height: 1.75;
  color: var(--color-text-soft);
  max-width: 560px;
  margin-bottom: var(--sp-8);
}
.hero-desc strong { color: var(--color-text); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--sp-4); margin-bottom: var(--sp-10); }

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--color-border);
  max-width: 540px;
}
.stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, #fff, #93c5fd);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-num span { color: var(--color-primary-200); -webkit-text-fill-color: var(--color-primary-200); font-size: 0.65em; font-weight: 600; }
.stat-label { margin-top: 6px; font-size: var(--fs-xs); color: var(--color-text-dim); letter-spacing: 0.03em; }
.stat-divider { width: 1px; height: 42px; background: var(--color-border); }

.hero-screenshot { transform: perspective(1200px) rotateY(-4deg) rotateX(3deg); transition: transform var(--transition-slow); }
.hero-screenshot:hover { transform: perspective(1200px) rotateY(0) rotateX(0) translateY(-4px); }

.hero-scroll-indicator {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 32px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-dim);
  font-size: var(--fs-xxs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- Screenshot Cards ---------- */
.screenshot-card {
  background: linear-gradient(180deg, #0f1d3b, #0a1628);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,102,255,0.05) inset;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.screenshot-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,102,255,0.45);
  box-shadow: 0 32px 70px -20px rgba(0,0,0,0.75), 0 0 0 1px rgba(0,102,255,0.2) inset, 0 0 50px rgba(0,102,255,0.15);
}
.screenshot-card.large { border-radius: 18px; }
.screenshot-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: linear-gradient(180deg, #172647, #132141);
  border-bottom: 1px solid var(--color-border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.r { background: #ff5f57; }
.dot.y { background: #febc2e; }
.dot.g { background: #28c840; }
.screenshot-title {
  margin-left: 10px;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}
.screenshot-body {
  background: #0A1628;
  overflow: hidden;
  position: relative;
}
.placeholder-img {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(400px 300px at 30% 30%, rgba(0,102,255,0.12), transparent 60%),
    radial-gradient(400px 300px at 70% 70%, rgba(6,182,212,0.10), transparent 60%),
    #0a1628;
  min-height: 300px;
}
.ph-content {
  text-align: center;
  color: var(--color-text-muted);
  padding: 40px 30px;
}
.ph-content svg { margin: 0 auto 18px; opacity: 0.9; }
.ph-content p { font-family: var(--font-display); font-weight: 600; color: var(--color-text-soft); font-size: var(--fs-sm); }

/* ---------- Section Heads ---------- */
.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--sp-16);
}
.section-title {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-4);
}
.section-desc {
  color: var(--color-text-soft);
  font-size: var(--fs-md);
  line-height: 1.7;
}
.section-desc strong { color: var(--color-text); font-weight: 600; }

/* ---------- Trusted / Compatible Chips ---------- */
.trusted { padding: 0 0 var(--sp-20); position: relative; z-index: 2; }
.trusted-label {
  text-align: center;
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: var(--sp-5);
}
.trusted-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--color-text-soft);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.chip:hover {
  color: #fff;
  border-color: var(--color-primary-400);
  background: rgba(0,102,255,0.10);
}

/* ---------- Features ---------- */
.features { padding: var(--sp-24) 0; position: relative; }
.features::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(900px 500px at 50% 0%, rgba(0,102,255,0.10), transparent 60%);
  pointer-events: none;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  position: relative;
}
.feature-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.01));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(400px 300px at var(--x,50%) -20%, rgba(0,102,255,0.12), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,102,255,0.4);
  box-shadow: 0 24px 60px -20px rgba(0,0,0,0.75), 0 0 0 1px rgba(0,102,255,0.15) inset;
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  margin-bottom: var(--sp-5);
  background: rgba(0,102,255,0.12);
  color: var(--color-primary-200);
  border: 1px solid rgba(0,102,255,0.25);
}
.icon-blue { background: rgba(0,102,255,0.12); color: #60a5fa; border-color: rgba(0,102,255,0.25); }
.icon-green { background: rgba(16,185,129,0.10); color: #34d399; border-color: rgba(16,185,129,0.25); }
.icon-orange { background: rgba(249,115,22,0.10); color: #fb923c; border-color: rgba(249,115,22,0.25); }
.icon-purple { background: rgba(139,92,246,0.10); color: #a78bfa; border-color: rgba(139,92,246,0.25); }
.icon-red { background: rgba(239,68,68,0.10); color: #f87171; border-color: rgba(239,68,68,0.25); }
.icon-cyan { background: rgba(6,182,212,0.10); color: #22d3ee; border-color: rgba(6,182,212,0.25); }

.feature-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-3);
}
.feature-desc {
  color: var(--color-text-soft);
  font-size: var(--fs-sm);
  line-height: 1.7;
}
.feature-desc strong { color: var(--color-text); font-weight: 600; }

/* ---------- Screenshots ---------- */
.screenshots { padding: var(--sp-24) 0; }
.screenshots-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-8);
  padding: 6px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-sm);
  border-radius: 10px;
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
}
.tab-btn:hover { color: var(--color-text); background: rgba(255,255,255,0.04); }
.tab-btn.active {
  background: linear-gradient(135deg, rgba(0,102,255,0.25), rgba(6,182,212,0.18));
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(0,102,255,0.35);
}
.tab-content { display: none; animation: fadein 0.45s ease; }
.tab-content.active { display: block; }
.lightbox-trigger { cursor: zoom-in; }
@keyframes fadein { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ---------- CTA ---------- */
.cta { padding: var(--sp-24) 0; position: relative; }
.cta-inner {
  position: relative;
  padding: clamp(40px, 6vw, 80px);
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(135deg, #0a1e47 0%, #0d2c6e 50%, #0a2056 100%);
  border: 1px solid rgba(96, 165, 250, 0.3);
  box-shadow: 0 30px 80px -20px rgba(0,102,255,0.35), inset 0 1px 0 rgba(255,255,255,0.08);
}
.cta-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(600px 400px at 10% 20%, rgba(96,165,250,0.35), transparent 60%),
    radial-gradient(500px 400px at 90% 80%, rgba(6,182,212,0.25), transparent 60%);
  pointer-events: none;
}
.cta-content { position: relative; text-align: center; max-width: 820px; margin: 0 auto; }
.cta-title {
  font-size: clamp(28px, 3.8vw, 44px);
  color: #fff;
  margin-bottom: var(--sp-4);
  letter-spacing: -0.02em;
}
.cta-desc {
  color: rgba(255,255,255,0.85);
  font-size: var(--fs-md);
  margin-bottom: var(--sp-6);
}
.cta-desc strong { color: #fff; font-weight: 600; }
.cta-meta {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-5);
  margin-bottom: var(--sp-8);
  padding: 14px 24px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  backdrop-filter: blur(10px);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.9);
  font-size: var(--fs-sm);
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-4);
}

/* ---------- SEO Content (Long-form) ---------- */
.seo-content { padding: var(--sp-24) 0; }
.seo-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--sp-12);
  align-items: start;
}
.seo-main h2 { font-size: var(--fs-3xl); margin-bottom: var(--sp-6); }
.seo-main h3 { font-size: var(--fs-2xl); margin: var(--sp-10) 0 var(--sp-4); color: var(--color-text); }
.seo-main p { color: var(--color-text-soft); margin-bottom: var(--sp-5); font-size: var(--fs-base); line-height: 1.8; }
.seo-main p strong { color: var(--color-text); font-weight: 700; }
.seo-main ul { margin: var(--sp-5) 0 var(--sp-5) 8px; padding-left: var(--sp-5); }
.seo-main li {
  position: relative;
  padding: 6px 0 6px 22px;
  color: var(--color-text-soft);
  line-height: 1.75;
  list-style: none;
}
.seo-main li::before {
  content: '';
  position: absolute;
  left: 0; top: 14px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--color-primary);
  transform: rotate(45deg);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.18);
}
.seo-main li strong { color: var(--color-text); font-weight: 700; }

.seo-side { position: sticky; top: 100px; display: flex; flex-direction: column; gap: var(--sp-5); }
.side-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 26px;
}
.side-card h4 {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--color-border);
}
.specs-list { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; }
.specs-list dt { color: var(--color-text-dim); font-size: var(--fs-sm); }
.specs-list dd { color: var(--color-text); font-weight: 500; font-size: var(--fs-sm); }
.keyword-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.keyword-chips span {
  padding: 6px 12px;
  background: rgba(0,102,255,0.09);
  border: 1px solid rgba(0,102,255,0.2);
  color: var(--color-primary-200);
  border-radius: 999px;
  font-size: var(--fs-xs);
  font-weight: 500;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--sp-20) 0 var(--sp-8);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.35));
  border-top: 1px solid var(--color-border);
  margin-top: var(--sp-20);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-12);
}
.footer-logo { margin-bottom: var(--sp-4); }
.footer-tagline {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 340px;
  margin-bottom: var(--sp-5);
}
.social-links { display: flex; gap: var(--sp-3); }
.social-links a {
  width: 40px; height: 40px;
  display: inline-flex;
  align-items: center; justify-content: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.social-links a:hover {
  color: #fff;
  border-color: var(--color-primary-400);
  background: rgba(0,102,255,0.12);
  transform: translateY(-2px);
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  margin-bottom: var(--sp-5);
  color: var(--color-text);
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col ul a:hover { color: var(--color-primary-200); padding-left: 3px; }

.footer-bottom {
  padding-top: var(--sp-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-bottom p {
  font-size: var(--fs-xs);
  color: var(--color-text-dim);
  line-height: 1.7;
}
.footer-bottom strong { color: var(--color-text-soft); }

/* ---------- Back-to-Top ---------- */
.back-to-top {
  position: fixed;
  right: 28px; bottom: 28px;
  width: 48px; height: 48px;
  display: inline-flex;
  align-items: center; justify-content: center;
  background: var(--grad-primary);
  color: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow-glow);
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition);
  z-index: 90;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 40px;
}
.lightbox.open { display: flex; animation: fadein .3s ease; }
.lightbox-content { text-align: center; max-width: 1400px; width: 100%; }
.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  margin: 0 auto;
  border-radius: 16px;
  box-shadow: 0 40px 100px rgba(0,0,0,0.6);
  border: 1px solid var(--color-border);
}
.lightbox-caption { color: var(--color-text-muted); font-size: var(--fs-sm); margin-top: var(--sp-4); }
.lightbox-close {
  position: absolute; top: 24px; right: 24px;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  border-radius: 12px;
  display: inline-flex;
  align-items: center; justify-content: center;
  transition: background var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,0.18); }

/* ---------- Animations (AOS style) ---------- */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp .9s cubic-bezier(.2,.8,.2,1) forwards;
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
.aos { opacity: 0; transform: translateY(40px); transition: opacity 0.85s ease, transform 0.85s cubic-bezier(.2,.8,.2,1); will-change: transform, opacity; }
.aos.in-view { opacity: 1; transform: translateY(0); }

/* ---------- Page Hero (Inner pages) ---------- */
.page-hero {
  position: relative;
  padding: 150px 0 var(--sp-16);
  overflow: hidden;
  text-align: center;
}
.page-title {
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: -0.025em;
  margin: var(--sp-3) auto var(--sp-5);
  max-width: 920px;
}
.page-desc {
  font-size: var(--fs-md);
  color: var(--color-text-soft);
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.75;
}
.page-desc strong { color: var(--color-text); font-weight: 600; }

/* ---------- Feature Detail Rows ---------- */
.feature-detail { padding: var(--sp-20) 0 0; }
.detail-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
  padding: var(--sp-16) 0;
}
.detail-row + .detail-row { border-top: 1px solid var(--color-border); }
.detail-row.reverse .detail-text { order: 2; }
.detail-row.reverse .detail-visual { order: 1; }
.detail-text h2 {
  font-size: clamp(26px, 3vw, 38px);
  margin: var(--sp-3) 0 var(--sp-4);
  letter-spacing: -0.02em;
}
.detail-text .lead {
  color: var(--color-text-soft);
  font-size: var(--fs-md);
  line-height: 1.75;
  margin-bottom: var(--sp-5);
}
.check-list { display: flex; flex-direction: column; gap: 12px; }
.check-list li {
  position: relative;
  padding: 4px 0 4px 32px;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--color-text-soft);
}
.check-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 7px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(16,185,129,0.14);
  border: 1px solid rgba(16,185,129,0.35);
}
.check-list li::after {
  content: '';
  position: absolute;
  left: 6px; top: 13px;
  width: 5px; height: 9px;
  border: solid #34d399;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.check-list li strong { color: var(--color-text); font-weight: 600; }

/* ---------- Device Cards ---------- */
.devices-section { padding: var(--sp-24) 0; }
.device-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); }
.device-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.01));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  transition: transform var(--transition), border-color var(--transition);
  position: relative;
}
.device-card:hover { transform: translateY(-6px); border-color: rgba(0,102,255,0.4); }
.device-badge {
  display: inline-flex;
  padding: 6px 14px;
  background: var(--grad-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-sm);
  border-radius: 8px;
  margin-bottom: var(--sp-4);
}
.device-card h3 { font-size: var(--fs-lg); margin-bottom: var(--sp-2); }
.device-card p { color: var(--color-text-muted); font-size: var(--fs-sm); line-height: 1.7; margin-bottom: var(--sp-4); }
.mini-specs { display: flex; flex-direction: column; gap: 6px; padding-top: var(--sp-4); border-top: 1px dashed var(--color-border); }
.mini-specs li {
  font-size: var(--fs-xs);
  color: var(--color-text-soft);
  position: relative;
  padding-left: 18px;
}
.mini-specs li::before {
  content: '✓';
  position: absolute; left: 0; top: 0;
  color: var(--color-green);
  font-weight: 700;
}

/* ---------- Changelog ---------- */
.changelog { padding: var(--sp-24) 0; }
.changelog-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--sp-6); }
.changelog-item {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 26px 30px;
}
.changelog-header {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px dashed var(--color-border);
}
.changelog-header .ver { font-family: var(--font-display); font-weight: 700; font-size: var(--fs-lg); color: #fff; }
.changelog-header .date { color: var(--color-text-dim); font-size: var(--fs-sm); }
.tag {
  padding: 4px 12px;
  background: var(--color-green);
  color: #052e1f;
  font-weight: 700;
  font-size: var(--fs-xxs);
  border-radius: 999px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.changelog-item ul { padding-left: var(--sp-5); }
.changelog-item li {
  position: relative;
  list-style: none;
  padding: 5px 0 5px 20px;
  color: var(--color-text-soft);
  font-size: var(--fs-sm);
  line-height: 1.7;
}
.changelog-item li::before { content: '▸'; position: absolute; left: 0; top: 3px; color: var(--color-primary-400); }

/* ---------- Download Page ---------- */
.download-section { padding: var(--sp-12) 0 var(--sp-20); }
.download-card {
  background: linear-gradient(180deg, #0f1f40, #0a1628);
  border: 1px solid rgba(0,102,255,0.35);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 30px 80px -20px rgba(0,102,255,0.3), inset 0 1px 0 rgba(255,255,255,0.06);
}
.dl-header {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  padding: 34px 38px;
  background: linear-gradient(135deg, rgba(0,102,255,0.18), rgba(6,182,212,0.10));
  border-bottom: 1px solid rgba(0,102,255,0.25);
}
.dl-icon {
  width: 80px; height: 80px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center; justify-content: center;
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 12px 36px rgba(0,102,255,0.45);
  flex-shrink: 0;
}
.dl-header h2 { font-size: var(--fs-2xl); }
.dl-subtitle { color: var(--color-text-muted); font-size: var(--fs-sm); margin-top: 4px; }
.badge-verified {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 999px;
  color: #34d399;
  font-weight: 600;
  font-size: var(--fs-sm);
  flex-shrink: 0;
}
.dl-body {
  padding: 34px 38px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-10);
  align-items: center;
}
.dl-info-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: var(--fs-sm);
}
.dl-info-row:last-of-type { border-bottom: none; }
.dl-info-row .label { color: var(--color-text-dim); }
.dl-info-row .val { color: var(--color-text); font-weight: 500; }
.monofont { font-family: 'Consolas', 'Menlo', monospace; font-size: 0.95em; color: var(--color-primary-200); }
.monofont.small { font-size: 0.8em; word-break: break-all; }

.dl-actions { display: flex; flex-direction: column; gap: var(--sp-4); align-items: stretch; }
.dl-btn { width: 100%; }
.dl-btn span { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.dl-btn span small { font-weight: 500; opacity: 0.85; font-size: var(--fs-xs); }
.dl-alt { display: flex; justify-content: center; gap: var(--sp-4); align-items: center; font-size: var(--fs-xs); }
.alt-link { color: var(--color-text-muted); }
.alt-link:hover { color: var(--color-primary-200); text-decoration: underline; }
.sep { color: var(--color-border); }

/* ---------- System Requirements ---------- */
.sysreq { padding: var(--sp-20) 0; }
.sys-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); max-width: 960px; margin: 0 auto; }
.sys-card {
  padding: 32px 30px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}
.sys-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-4);
  border-bottom: 1px dashed var(--color-border);
}
.sys-card.min h3 { color: var(--color-text-muted); }
.sys-card.rec h3 { color: #fff; }
.sys-card.rec { border-color: rgba(0,102,255,0.35); background: linear-gradient(180deg, rgba(0,102,255,0.10), rgba(255,255,255,0.02)); }
.ribbon {
  position: absolute;
  top: 14px; right: -30px;
  transform: rotate(35deg);
  background: var(--grad-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 40px;
  text-transform: uppercase;
}
.sys-card ul { display: flex; flex-direction: column; gap: 10px; }
.sys-card li {
  font-size: var(--fs-sm);
  color: var(--color-text-soft);
  padding-left: 22px;
  position: relative;
}
.sys-card li::before {
  content: '●';
  position: absolute;
  left: 0; top: 0;
  color: var(--color-primary-400);
  font-size: 8px;
  line-height: 1.8;
}
.sys-card li strong { color: var(--color-text); font-weight: 600; }

/* ---------- Install Guide ---------- */
.install-guide { padding: var(--sp-20) 0; }
.steps {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  counter-reset: step;
}
.steps::before {
  content: '';
  position: absolute;
  left: 34px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(180deg, rgba(0,102,255,0.6), rgba(0,102,255,0.1));
}
.step {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: var(--sp-6);
  padding: 24px 0;
  position: relative;
}
.step-num {
  width: 70px; height: 70px;
  display: inline-flex;
  align-items: center; justify-content: center;
  border-radius: 20px;
  background: var(--grad-primary);
  color: #fff;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  box-shadow: 0 12px 36px rgba(0,102,255,0.4);
  z-index: 1;
}
.step-body h3 { font-size: var(--fs-xl); margin-bottom: var(--sp-3); }
.step-body p { color: var(--color-text-soft); font-size: var(--fs-sm); line-height: 1.8; }
.step-body code {
  background: rgba(0,102,255,0.15);
  border: 1px solid rgba(0,102,255,0.25);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: 'Consolas', monospace;
  font-size: 0.9em;
  color: var(--color-primary-200);
}

/* ---------- What's New ---------- */
.whatsnew { padding: var(--sp-20) 0; }
.new-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--sp-10);
}
.whatsnew-list { display: flex; flex-direction: column; gap: 12px; margin-top: var(--sp-5); }
.whatsnew-list li {
  position: relative;
  padding: 12px 14px 12px 44px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-soft);
  font-size: var(--fs-sm);
  line-height: 1.7;
}
.whatsnew-list li::before {
  content: '+';
  position: absolute; left: 14px; top: 10px;
  width: 22px; height: 22px;
  background: var(--color-green);
  color: #052e1f;
  border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.whatsnew-list li strong { color: var(--color-text); }
.ver-list {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 26px;
}
.ver-list h3 { font-size: var(--fs-lg); margin-bottom: var(--sp-5); }
.ver-item {
  padding: 14px 0;
  border-bottom: 1px dashed var(--color-border);
}
.ver-item:last-child { border-bottom: none; }
.ver-item.current {
  padding: 14px;
  margin: 0 -14px 10px;
  background: rgba(0,102,255,0.10);
  border: 1px solid rgba(0,102,255,0.3);
  border-radius: var(--radius);
}
.ver-head {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: 4px;
}
.ver-head .vnum { font-family: var(--font-display); font-weight: 700; color: #fff; }
.ver-head .vdate { color: var(--color-text-dim); font-size: var(--fs-xs); }
.vtag {
  padding: 2px 10px;
  background: var(--color-green);
  color: #052e1f;
  font-size: 10px;
  font-weight: 700;
  border-radius: 999px;
  text-transform: uppercase;
}
.vsize { color: var(--color-text-muted); font-size: var(--fs-xs); }
.dl-mini { color: var(--color-primary-200); font-weight: 600; }

/* ---------- Troubleshoot / FAQ mini ---------- */
.troubleshoot { padding: var(--sp-20) 0; }
.faq-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
  max-width: 1080px;
  margin: 0 auto;
}

/* ---------- FAQ Page ---------- */
.faq-search { padding: var(--sp-10) 0 var(--sp-12); }
.search-form {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 6px 6px 6px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: 16px;
}
.search-form:focus-within {
  border-color: rgba(0,102,255,0.5);
  box-shadow: 0 0 0 4px rgba(0,102,255,0.12);
}
.search-form svg { color: var(--color-text-dim); flex-shrink: 0; }
.search-form input {
  flex: 1;
  padding: 14px 4px;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: var(--fs-base);
}
.search-form input::placeholder { color: var(--color-text-dim); }

.faq-section { padding: var(--sp-10) 0; }
.faq-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--sp-10);
  align-items: start;
}
.faq-aside { position: sticky; top: 100px; }
.faq-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}
.faq-nav a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-radius: 10px;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--transition);
}
.faq-nav a:hover { background: rgba(255,255,255,0.04); color: var(--color-text); }
.faq-nav a.active {
  background: rgba(0,102,255,0.15);
  color: var(--color-primary-200);
  box-shadow: inset 0 0 0 1px rgba(0,102,255,0.3);
}

.faq-content { display: flex; flex-direction: column; gap: var(--sp-12); }
.faq-group-title {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  font-size: var(--fs-2xl);
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--color-border);
}
.faq-group-title span {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: var(--grad-primary);
  color: #fff;
  flex-shrink: 0;
}

.faq-item {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--sp-3);
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition);
}
.faq-item[open] { border-color: rgba(0,102,255,0.35); background: rgba(0,102,255,0.04); }
.faq-item summary {
  cursor: pointer;
  padding: 20px 26px 20px 56px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-md);
  color: var(--color-text);
  list-style: none;
  position: relative;
  transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: 'Q';
  position: absolute;
  left: 20px; top: 18px;
  width: 28px; height: 28px;
  background: rgba(0,102,255,0.18);
  color: var(--color-primary-200);
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
}
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 20px; top: 50%;
  transform: translateY(-50%) rotate(0deg);
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-primary-200);
  font-size: 24px;
  line-height: 1;
  transition: transform var(--transition);
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item summary:hover { color: #fff; }
.faq-answer {
  padding: 0 26px 22px 56px;
  color: var(--color-text-soft);
  font-size: var(--fs-sm);
  line-height: 1.8;
}
.faq-answer p { margin-bottom: var(--sp-3); }
.faq-answer strong { color: var(--color-text); font-weight: 700; }
.faq-answer code {
  background: rgba(0,102,255,0.15);
  border: 1px solid rgba(0,102,255,0.25);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: 'Consolas', monospace;
  font-size: 0.92em;
  color: var(--color-primary-200);
}
.faq-answer a { font-weight: 600; }
.faq-footer-note {
  text-align: center;
  padding: var(--sp-8) 0 0;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1280px) {
  .container { max-width: 1160px; }
  .hero { padding: 130px 0 var(--sp-20); }
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .seo-grid { grid-template-columns: 1fr 320px; }
  .dl-body { grid-template-columns: 1.1fr 1fr; gap: var(--sp-6); }
}
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--sp-12); text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { margin-left: auto; margin-right: auto; justify-content: center; }
  .hero-visual { max-width: 780px; margin: 0 auto; }
  .hero-screenshot { transform: none; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .device-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-col.brand-col { grid-column: 1 / -1; }
  .seo-grid { grid-template-columns: 1fr; }
  .seo-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .seo-side .side-card { flex: 1; min-width: 320px; }
  .detail-row, .detail-row.reverse { grid-template-columns: 1fr; gap: var(--sp-8); }
  .detail-row.reverse .detail-text { order: 0; }
  .detail-row.reverse .detail-visual { order: 0; }
  .dl-header { flex-wrap: wrap; }
  .badge-verified { margin-left: 0; width: fit-content; }
  .dl-body { grid-template-columns: 1fr; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-aside { position: static; }
  .faq-nav { flex-direction: row; overflow-x: auto; }
  .faq-nav a { flex-shrink: 0; }
  .new-grid { grid-template-columns: 1fr; }
  .trusted-logos { gap: 10px; }
  .chip { padding: 8px 14px; font-size: var(--fs-xs); }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 16px;
    background: rgba(6, 13, 26, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-link { padding: 14px 16px; width: 100%; border-radius: 10px; }
  .menu-toggle { display: inline-flex; }
  .nav-actions .btn-sm { display: inline-flex; }

  .hero { padding: 120px 0 var(--sp-16); }
  .hero-title { font-size: clamp(32px, 9vw, 46px); }
  .hero-stats { flex-wrap: wrap; gap: var(--sp-5); justify-content: center; }
  .stat-divider { display: none; }
  .section-title { font-size: clamp(26px, 7vw, 36px); }
  .features-grid { grid-template-columns: 1fr; }
  .device-grid { grid-template-columns: 1fr; }
  .sys-grid { grid-template-columns: 1fr; }
  .steps::before { display: none; }
  .step { grid-template-columns: 54px 1fr; gap: var(--sp-4); }
  .step-num { width: 54px; height: 54px; border-radius: 14px; font-size: 22px; }
  .faq-mini-grid { grid-template-columns: 1fr; }
  .dl-header { padding: 26px 22px; gap: var(--sp-4); }
  .dl-icon { width: 64px; height: 64px; border-radius: 16px; }
  .dl-icon svg { width: 36px; height: 36px; }
  .dl-body { padding: 26px 22px; }
  .dl-info-row { grid-template-columns: 110px 1fr; }
  .cta-inner { padding: 40px 24px; border-radius: 20px; }
  .btn-xxl { padding: 16px 22px; font-size: var(--fs-md); }
  .btn-xl, .btn-lg { padding: 14px 20px; font-size: var(--fs-base); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col.brand-col { grid-column: 1 / -1; }
  .hero-scroll-indicator { display: none; }
  .page-hero { padding: 120px 0 var(--sp-12); }
  .faq-group-title { font-size: var(--fs-xl); }
}
@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .logo-text { display: none; }
  .hero-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .side-card { padding: 22px; }
  .specs-list { grid-template-columns: 1fr; }
  .specs-list dt { margin-top: 4px; }
  .dl-header { padding: 22px 18px; }
  .dl-body { padding: 22px 18px; }
  .dl-info-row { grid-template-columns: 1fr; gap: 2px; }
  .badge-verified { width: 100%; justify-content: center; }
  .cta-actions .btn { width: 100%; }
  .faq-item summary { padding: 18px 18px 18px 50px; font-size: var(--fs-sm); }
  .faq-item summary::before { left: 14px; top: 16px; }
  .faq-answer { padding: 0 18px 18px 50px; }
  .changelog-item { padding: 22px; }
  .search-form { padding: 4px 4px 4px 14px; flex-wrap: wrap; }
  .search-form .btn { width: 100%; }
}