:root {
  --bg: #071019;
  --bg-soft: #0d1724;
  --card: rgba(18, 29, 44, 0.82);
  --line: rgba(255, 255, 255, 0.08);
  --text: #eef4ff;
  --muted: #a8b7cc;
  --accent: #78e7ff;
  --accent-2: #b86cff;
  --success: #98ffbe;
  --shadow: 0 20px 70px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background: radial-gradient(circle at top, #0d2030 0%, var(--bg) 45%, #04070d 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.bg-orb { position: fixed; width: 480px; height: 480px; border-radius: 50%; filter: blur(90px); z-index: -1; opacity: .22; }
.orb-1 { top: 60px; left: -120px; background: #25a0ff; }
.orb-2 { right: -120px; top: 260px; background: #a94cff; }
.header { position: sticky; top: 0; z-index: 30; backdrop-filter: blur(16px); background: rgba(5,12,20,.64); border-bottom: 1px solid var(--line); }
.nav { display:flex; align-items:center; justify-content:space-between; gap:20px; min-height:78px; }
.logo { font-size: 1.35rem; font-weight: 800; letter-spacing: .06em; }
.logo span { color: var(--accent); }
nav { display:flex; gap: 24px; flex-wrap: wrap; }
nav a { color: var(--muted); font-size: .96rem; }
nav a:hover { color: #fff; }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding: 15px 24px; border-radius: 14px; border: 1px solid transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color:#08131d; font-weight:700;
  box-shadow: 0 12px 30px rgba(86, 194, 255, .25);
}
.btn:hover { transform: translateY(-1px); }
.btn-small { padding: 12px 18px; font-size: .95rem; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); box-shadow:none; }
.hero { padding: 72px 0 40px; }
.hero-grid { display:grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items:center; }
.badge, .section-kicker {
  display:inline-block; padding: 8px 12px; border-radius: 999px; background: rgba(120,231,255,.08);
  border: 1px solid rgba(120,231,255,.18); color: var(--accent); font-weight: 600; font-size: .9rem;
}
.hero h1 { margin: 18px 0 18px; font-size: clamp(2.2rem, 5vw, 4.3rem); line-height: 1.02; max-width: 720px; }
.lead { color: var(--muted); font-size: 1.08rem; line-height: 1.7; max-width: 690px; }
.hero-actions { display:flex; gap:14px; flex-wrap:wrap; margin: 30px 0 22px; }
.hero-points { list-style:none; display:flex; gap: 16px; padding:0; margin:0; flex-wrap:wrap; color: var(--muted); }
.hero-points li { padding: 10px 14px; border:1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.02); }
.hero-visual { display:flex; justify-content:center; }
.ring-showcase {
  position:relative; width: min(100%, 530px); aspect-ratio: 1 / 1.05; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border: 1px solid var(--line); border-radius: 32px; overflow: hidden; box-shadow: var(--shadow);
}
.ring-glow, .ring-body { position:absolute; border-radius:50%; }
.ring-glow { width: 68%; height: 68%; border: 30px solid rgba(129, 235, 255, .26); filter: blur(24px); box-shadow: 0 0 80px rgba(99,229,255,.8), 0 0 160px rgba(174,91,255,.45); }
.ring-body { width: 62%; height: 62%; border: 22px solid rgba(232,242,255,.9); box-shadow: 0 0 20px rgba(255,255,255,.35), inset 0 0 14px rgba(255,255,255,.7), 0 0 40px rgba(84, 219, 255, .65); }
.ring-seat { position:absolute; width: 28%; height: 11px; background: #ecf6ff; bottom: 28%; border-radius:999px; box-shadow: 0 0 18px rgba(255,255,255,.85); }
.ring-rope { position:absolute; width: 4px; height: 27%; top: 11%; background: linear-gradient(180deg, #ffffff, rgba(255,255,255,.32)); }
.ring-rope.left { left: 37.5%; }
.ring-rope.right { right: 37.5%; }
.tag {
  position:absolute; padding: 12px 14px; border-radius: 14px; background: rgba(4,12,20,.7); border:1px solid var(--line);
  backdrop-filter: blur(8px); font-weight: 600; color: #fff;
}
.tag.price { left: 18px; bottom: 18px; }
.tag.option { right: 18px; top: 18px; color: var(--accent); }
.stats { padding-bottom: 20px; }
.stats-grid { display:grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.stat, .card {
  border:1px solid var(--line); background: var(--card); border-radius: 24px; box-shadow: var(--shadow);
}
.stat { padding: 22px; }
.stat strong { display:block; font-size: 1.6rem; margin-bottom: 6px; }
.stat span { color: var(--muted); }
.section { padding: 92px 0; }
.section.dark { background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section h2 { margin: 14px 0 12px; font-size: clamp(1.8rem, 4vw, 3rem); }
.section p { color: var(--muted); line-height: 1.75; }
.cards { display:grid; gap: 18px; }
.models-grid { grid-template-columns: repeat(3,1fr); }
.product-card { padding: 20px; }
.product-card h3 { font-size: 1.3rem; margin: 14px 0 10px; }
.product-card ul { padding-left: 18px; color: var(--muted); line-height: 1.8; }
.price-row { display:flex; justify-content:space-between; align-items:center; gap:12px; margin-top: 18px; }
.price-row strong { font-size: 1.2rem; }
.price-row a { color: var(--accent); font-weight: 700; }
.product-art {
  height: 220px; border-radius: 18px; border:1px solid rgba(255,255,255,.08); background-color: #0a1320;
  position: relative; overflow: hidden;
}
.product-art::before, .product-art::after { content:""; position:absolute; border-radius:50%; }
.art-basic::before { width: 160px; height:160px; border: 18px solid rgba(255,255,255,.92); box-shadow: 0 0 26px rgba(106,228,255,.8), inset 0 0 16px rgba(255,255,255,.7); left:50%; top:50%; transform:translate(-50%,-45%); }
.art-basic::after { width: 70px; height:8px; background:#fff; left:50%; bottom:38px; transform: translateX(-50%); box-shadow:0 0 14px rgba(255,255,255,.8); }
.art-rotate::before { width: 160px; height:160px; border: 18px solid #eff8ff; left: 48%; top: 51%; transform: translate(-50%,-50%); box-shadow:0 0 18px rgba(255,255,255,.6), 0 0 40px rgba(188,92,255,.7); }
.art-rotate::after { width: 210px; height:210px; border: 2px dashed rgba(120,231,255,.45); left:48%; top:51%; transform:translate(-50%,-50%); }
.art-frame::before { width: 190px; height:160px; border: 5px solid rgba(207,225,244,.4); border-bottom:none; left:50%; top:50%; transform:translate(-50%,-50%); border-radius: 20px 20px 0 0; }
.art-frame::after { width: 120px; height:120px; border: 14px solid #eff7ff; left:50%; top:58%; transform:translate(-50%,-50%); box-shadow: 0 0 26px rgba(120,231,255,.72); }
.benefit-grid { grid-template-columns: repeat(3,1fr); }
.card { padding: 24px; }
.icon { width:52px; height:52px; border-radius: 16px; display:grid; place-items:center; font-size:1.4rem; margin-bottom: 16px; background: rgba(120,231,255,.08); border:1px solid rgba(120,231,255,.15); }
.colors-grid, .install-grid, .request-grid, .footer-grid { display:grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.palette-card { text-align:center; }
.palette-ring { width: 250px; height:250px; margin: 0 auto 20px; border-radius:50%; border: 22px solid #eff8ff; box-shadow: 0 0 30px rgba(255,255,255,.45), 0 0 60px rgba(120,231,255,.55); background: conic-gradient(from 0deg, #ff5d5d, #ffc857, #63ffae, #59b7ff, #ab6cff, #ff5d5d); background-clip: padding-box; }
.palette-swatches { display:flex; justify-content:center; gap: 10px; margin-bottom: 16px; }
.swatch { width: 22px; height: 22px; border-radius:50%; display:inline-block; }
.s1 { background:#fff1b7; }.s2 { background:#ff6c6c; }.s3 { background:#55d98f; }.s4 { background:#4caeff; }.s5 { background:#b86cff; }.s6 { background:#ffffff; }
.modes, .use-cases { display:flex; flex-wrap:wrap; gap:12px; }
.modes span, .use-cases span { padding: 12px 16px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,.03); color: #dfeaff; }
.install-cards { grid-template-columns: repeat(2,1fr); }
.request-section { border-top: 1px solid var(--line); }
.form-card input, .form-card select, .form-card textarea {
  width:100%; padding: 15px 16px; border-radius: 14px; border:1px solid rgba(255,255,255,.08); background: rgba(3,9,15,.65); color: #fff; margin-bottom: 12px; font: inherit;
}
.form-card textarea { resize: vertical; min-height: 110px; }
.agree { display:flex; gap: 10px; align-items:flex-start; color: var(--muted); font-size: .94rem; margin: 10px 0 16px; }
.form-note { font-size: .9rem; color: var(--muted); margin-top: 14px; }
.faq-list { display:grid; gap: 14px; }
.faq-list summary { cursor:pointer; font-weight: 700; }
.faq-list p { margin-bottom: 0; }
.footer { padding: 32px 0 90px; border-top: 1px solid var(--line); }
.footer h3 { margin-top:0; }
.footer p, .footer a { color: var(--muted); }
.floating-cta {
  position: fixed; right: 18px; bottom: 18px; z-index: 35; padding: 14px 18px; border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #071019; font-weight: 800; box-shadow: 0 12px 28px rgba(72, 202, 255, .35);
}
@media (max-width: 1024px) {
  .hero-grid, .colors-grid, .install-grid, .request-grid, .footer-grid { grid-template-columns: 1fr; }
  .stats-grid, .models-grid, .benefit-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 760px) {
  nav { display:none; }
  .hero { padding-top: 36px; }
  .stats-grid, .models-grid, .benefit-grid, .install-cards { grid-template-columns: 1fr; }
  .hero-actions { flex-direction:column; align-items:stretch; }
  .floating-cta { left: 12px; right: 12px; text-align:center; }
  .ring-showcase { aspect-ratio: 1 / 1.1; }
}