:root {
  --bg: #07111f;
  --bg2: #0d1b30;
  --panel: rgba(13, 27, 48, 0.72);
  --panel-strong: #11233d;
  --line: rgba(147, 197, 253, 0.16);
  --text: #eff6ff;
  --muted: #aac1df;
  --blue: #60a5fa;
  --cyan: #22d3ee;
  --violet: #8b5cf6;
  --lime: #a3e635;
  --amber: #fbbf24;
  --shadow: 0 22px 60px rgba(2, 8, 23, 0.38);
  --radius: 24px;
  --wrap: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(139, 92, 246, 0.18), transparent 30%),
    linear-gradient(180deg, #060d19 0%, #0b1628 45%, #08101d 100%);
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img, svg { display: block; }
.wrap { width: min(var(--wrap), calc(100% - 32px)); margin: 0 auto; }
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(6, 13, 25, 0.72);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  width: min(var(--wrap), calc(100% - 32px));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.nav-brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.nav-brand svg { width: 34px; height: 34px; color: var(--cyan); }
.nav-menu { display: flex; gap: 10px; flex-wrap: wrap; }
.nav-link {
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid transparent;
}
.nav-link:hover, .nav-link.on {
  color: #fff;
  border-color: rgba(96, 165, 250, 0.26);
  background: linear-gradient(135deg, rgba(96,165,250,0.16), rgba(34,211,238,0.12));
}
.btn {
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  transition: .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #03111f; background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.btn-secondary { color: #fff; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); }
.btn-ghost { color: #fff; background: transparent; border: 1px solid rgba(255,255,255,0.18); }
.btn-lg { padding: 16px 26px; }
.sec { padding: 84px 0; }
.sec-head { max-width: 760px; margin-bottom: 34px; }
.sec-tag {
  display: inline-flex;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(96,165,250,0.12);
  color: var(--cyan);
  border: 1px solid rgba(34,211,238,0.18);
  margin-bottom: 16px;
  font-size: 14px;
}
.sec-title { margin: 0 0 14px; font-size: clamp(30px, 5vw, 48px); line-height: 1.08; }
.sec-sub { margin: 0; color: var(--muted); line-height: 1.8; }
.hero { padding: 56px 0 36px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: center; }
.hero-title { margin: 0 0 18px; font-size: clamp(42px, 7vw, 76px); line-height: .98; }
.hero-desc { margin: 0 0 24px; color: var(--muted); font-size: 18px; line-height: 1.9; max-width: 700px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.hero-points, .stack-list, .mini-list, .faq-list { padding: 0; margin: 0; list-style: none; }
.hero-points { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.hero-point, .glass, .feature-card, .platform-card, .showcase-card, .review-card, .stat-card, .timeline-card, .faq-item, .seo-card, .cta-box, .table-wrap, .guide-card, .req-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.hero-point { padding: 18px; }
.kicker { color: var(--cyan); font-size: 14px; margin-bottom: 10px; }
.hero-visual { padding: 22px; }
.visual-top, .mock-row, .trend-row, .review-top, .footer-inner { display: flex; align-items: center; }
.visual-top { justify-content: space-between; margin-bottom: 20px; }
.dot-group { display: flex; gap: 8px; }
.dot-group span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.3); }
.d1 { background: #fb7185 !important; } .d2 { background: #fbbf24 !important; } .d3 { background: #34d399 !important; }
.mock-screen, .grid-2, .feature-grid, .platform-grid, .showcase-grid, .reviews-grid, .stats-grid, .guide-grid, .req-grid, .seo-grid, .footer-grid { display: grid; gap: 20px; }
.mock-screen { grid-template-columns: 1.2fr .8fr; }
.stack-list li, .mini-list li { color: var(--muted); line-height: 1.7; position: relative; padding-left: 18px; margin-bottom: 10px; }
.stack-list li:before, .mini-list li:before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--cyan), var(--blue)); position: absolute; left: 0; top: 10px; }
.trend-card { padding: 18px; background: rgba(255,255,255,0.04); border-radius: 20px; }
.trend-bar { height: 10px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; margin-top: 12px; }
.trend-bar span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(135deg, var(--blue), var(--cyan)); }
.feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-card, .platform-card, .showcase-card, .review-card, .stat-card, .timeline-card, .guide-card, .req-card, .seo-card, .cta-box { padding: 24px; }
.icon-ring { width: 54px; height: 54px; border-radius: 18px; display: grid; place-items: center; margin-bottom: 18px; background: linear-gradient(135deg, rgba(96,165,250,0.22), rgba(34,211,238,0.12)); color: var(--cyan); }
.feature-card h3, .platform-card h3, .showcase-card h3, .guide-card h3, .req-card h3, .seo-card h3 { margin: 0 0 12px; font-size: 22px; }
.feature-card p, .platform-card p, .showcase-card p, .review-card p, .guide-card p, .req-card p, .seo-card p { margin: 0; color: var(--muted); line-height: 1.8; }
.platform-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.platform-card.featured { background: linear-gradient(180deg, rgba(34,211,238,0.14), rgba(13,27,48,0.78)); }
.meta { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 18px; }
.meta span { padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,0.06); color: #dbeafe; font-size: 14px; }
.showcase-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.showcase-card { min-height: 100%; }
.showcase-visual { margin-top: 18px; padding: 18px; border-radius: 18px; background: rgba(255,255,255,0.04); }
.metric { display: grid; gap: 12px; }
.metric div { display: flex; justify-content: space-between; gap: 20px; color: var(--muted); }
.metric span:last-child { color: #fff; }
.reviews-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.review-top { justify-content: space-between; margin-bottom: 16px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; color: #03111f; background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.stars { color: var(--amber); letter-spacing: 2px; }
.stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat-card strong { display: block; font-size: 36px; margin-bottom: 8px; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 16px 18px; border-bottom: 1px solid rgba(255,255,255,0.08); text-align: left; }
th { color: #dbeafe; font-size: 15px; }
td { color: var(--muted); }
.highlight { color: #fff; font-weight: 700; }
.faq-list { display: grid; gap: 16px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-q { width: 100%; background: transparent; color: #fff; border: 0; text-align: left; padding: 22px 24px; font-size: 18px; font-weight: 700; cursor: pointer; position: relative; }
.faq-q:after { content: '+'; position: absolute; right: 24px; top: 18px; font-size: 28px; }
.faq-item.open .faq-q:after { content: '−'; }
.faq-a { display: none; padding: 0 24px 22px; color: var(--muted); line-height: 1.8; }
.faq-item.open .faq-a { display: block; }
.cta-box { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.download-hero { padding-top: 44px; }
.download-main { display: grid; grid-template-columns: 1fr .92fr; gap: 24px; }
.download-badge { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: rgba(163,230,53,0.1); color: var(--lime); border: 1px solid rgba(163,230,53,0.2); margin-bottom: 18px; }
.spec-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; margin: 18px 0 24px; }
.spec { padding: 16px; border-radius: 18px; background: rgba(255,255,255,0.04); }
.guide-grid, .req-grid, .seo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.step-list { counter-reset: steps; display: grid; gap: 16px; }
.step { padding: 18px 18px 18px 64px; position: relative; border-radius: 20px; background: rgba(255,255,255,0.04); color: var(--muted); line-height: 1.8; }
.step:before { counter-increment: steps; content: counter(steps); position: absolute; left: 18px; top: 18px; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; color: #03111f; font-weight: 700; background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.timeline { display: grid; gap: 18px; }
.timeline-card strong { display: block; margin-bottom: 10px; }
.side-note { padding: 18px; border-radius: 18px; background: rgba(255,255,255,0.04); color: var(--muted); line-height: 1.8; }
.article-hero { padding: 46px 0 24px; }
.hero-chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-chip-row span { padding: 9px 12px; border-radius: 999px; background: rgba(255,255,255,0.06); color: #dbeafe; font-size: 14px; }
.site-footer { padding: 34px 0 48px; }
.footer-inner { justify-content: space-between; gap: 18px; color: var(--muted); border-top: 1px solid rgba(255,255,255,0.08); padding-top: 28px; }
.footer-grid { grid-template-columns: 1.25fr .75fr; }
.footer-note { line-height: 1.8; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@media (max-width: 1100px) {
  .hero-grid, .download-main, .showcase-grid, .guide-grid, .req-grid, .seo-grid, .footer-grid, .mock-screen { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .reviews-grid, .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .nav-inner { padding: 12px 0; align-items: flex-start; flex-direction: column; }
  .hero-points, .feature-grid, .platform-grid, .reviews-grid, .stats-grid, .spec-grid { grid-template-columns: 1fr; }
  .sec { padding: 68px 0; }
  .cta-box, .footer-inner { align-items: flex-start; flex-direction: column; }
  .hero-title { font-size: 40px; }
  .sec-title { font-size: 32px; }
}