@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --accent: #3b6dd4;
  --ink: #0f1115;
  --muted: #6b7280;
}
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--ink);
  background: #fff;
  overflow-x: hidden;
}
h1, h2, h3 { font-weight: 800; letter-spacing: -0.5px; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; }
p { line-height: 1.7; color: #333; }

.site-header {
  background: var(--ink);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo img { height: 30px; width: auto; }
.lang-switcher { display: flex; gap: 6px; }
.lang-switcher a {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: rgba(255,255,255,0.55);
  padding: 5px 9px;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
}
.lang-switcher a.active { color: #fff; background: var(--accent); }
.lang-switcher a:hover { color: #fff; }

.hero {
  background: linear-gradient(180deg, #14161c 0%, #1c2030 100%);
  padding: 60px 24px;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
}
.hero-text { flex: 1 1 42%; text-align: left; }
.hero h1 { color: #fff; font-size: clamp(28px, 4.5vw, 42px); line-height: 1.2; }
.hero-photo { flex: 1 1 58%; }
.hero-photo img { border-radius: 12px; width: 100%; box-shadow: 0 20px 60px rgba(0,0,0,0.4); }

.intro-split {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 30px;
}
.intro-col h2 { font-size: 22px; line-height: 1.3; }
.intro-col p { font-size: 15px; }

.usp-band {
  background: var(--ink);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  padding: 40px 24px;
}
.usp-item { text-align: center; color: #fff; max-width: 180px; }
.usp-icon { width: 32px; height: 32px; margin: 0 auto 12px; color: var(--accent); }
.usp-icon svg { width: 100%; height: 100%; }
.usp-h { font-weight: 700; font-size: 15px; margin-bottom: 4px; color: var(--accent); }
.usp-p { font-size: 13px; color: rgba(255,255,255,0.6); }

.product-block {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px 30px;
  display: flex;
  gap: 50px;
  align-items: flex-start;
}
.product-block.reverse { flex-direction: row-reverse; }
.product-gallery, .product-info { flex: 1 1 50%; min-width: 0; }
.gallery-main img { border-radius: 10px; width: 100%; aspect-ratio: 1; object-fit: contain; background: #f7f7f7; }
.gallery-thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; }
.gallery-thumbs .thumb { width: 60px; height: 60px; object-fit: cover; border-radius: 6px; cursor: pointer; opacity: 0.6; border: 2px solid transparent; flex-shrink: 0; }
.gallery-thumbs .thumb.active, .gallery-thumbs .thumb:hover { opacity: 1; border-color: var(--accent); }
.product-info { display: flex; flex-direction: column; justify-content: center; }
.product-info h2 { font-size: 26px; margin-bottom: 14px; }
.product-info .intro { font-size: 15px; margin-bottom: 14px; }
.rating-line { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; font-size: 13.5px; color: var(--muted); }
.stars { color: #f5a623; letter-spacing: 1px; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  align-self: flex-start;
  transition: background 0.2s, transform 0.2s;
}
.btn:hover { background: #2c56ab; transform: translateY(-1px); }
.btn-sm { padding: 8px 16px; font-size: 13px; }

.feat-slider-section { background: #f7f8fa; padding: 56px 24px 60px; }
.feat-header { max-width: 900px; margin: 0 auto 20px; text-align: center; }
.feat-header h3 { font-size: 21px; }
.feat-slider-wrap { max-width: 900px; margin: 0 auto; }
.feat-slider-wrap--narrow { max-width: 460px; }
.feat-slider-img { position: relative; overflow: hidden; border-radius: 10px; background: #111; }
.feat-slider-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.feat-slider-nav { position: absolute; bottom: 14px; left: 0; right: 0; display: flex; justify-content: center; gap: 6px; }
.feat-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.4); border: none; cursor: pointer; padding: 0; transition: 0.2s; }
.feat-dot.active { background: #fff; width: 22px; border-radius: 4px; }
.feat-prev, .feat-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.45); border: none; color: #fff; font-size: 1.3rem;
  width: 38px; height: 38px; border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: 0.2s;
}
.feat-prev { left: 10px; } .feat-next { right: 10px; }
.feat-prev:hover, .feat-next:hover { background: rgba(0,0,0,0.7); }
.feat-slider-info {
  background: #fff; border: 1px solid #eee; border-radius: 10px;
  padding: 22px 26px; margin-top: 14px; box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.feat-info-num { font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px; }
.feat-info-h { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.feat-info-p { font-size: 14.5px; color: #444; line-height: 1.65; min-height: 44px; }
.feat-progress { height: 3px; background: #eee; border-radius: 2px; margin-top: 16px; overflow: hidden; }
.feat-progress-bar { height: 100%; background: var(--accent); border-radius: 2px; transition: width 0.4s; }
@media (max-width: 600px) {
  .feat-prev, .feat-next { width: 34px; height: 34px; font-size: 1.1rem; }
}

.video-section { max-width: 800px; margin: 0 auto; padding: 40px 24px; }
.video-wrap { position: relative; width: 100%; padding-top: 56.25%; border-radius: 10px; overflow: hidden; background: #000; }
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: none; }

.compare-section {
  max-width: 800px;
  margin: 20px auto 60px;
  padding: 0 24px;
  text-align: center;
}
.compare-section h2 { font-size: 24px; margin-bottom: 24px; }
.compare-scroll { overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 480px; text-align: left; }
.compare-table th, .compare-table td { padding: 11px 14px; font-size: 13.5px; border-bottom: 1px solid #eee; text-align: center; }
.compare-table thead th { font-weight: 700; font-size: 15px; border-bottom: 2px solid var(--accent); }
.compare-table thead th:first-child { visibility: hidden; }
.compare-table tbody th { text-align: left; font-weight: 500; color: var(--muted); white-space: nowrap; }
.compare-table tbody tr:nth-child(even) { background: #f7f7f7; }
.compare-table td { font-weight: 600; }

.reviews-section { background: #f7f8fa; padding: 60px 24px; text-align: center; }
.reviews-section h2 { font-size: 26px; margin-bottom: 8px; }
.reviews-section .sub { color: var(--muted); font-size: 15px; margin-bottom: 36px; }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 1100px; margin: 0 auto; }
.review-card { background: #fff; border-radius: 10px; padding: 22px; text-align: left; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.review-stars { color: #f5a623; margin-bottom: 8px; }
.review-title { font-weight: 700; font-size: 15px; margin-bottom: 4px; }
.review-meta { font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.review-meta .verified { color: #16a34a; font-weight: 600; margin-left: 6px; }
.review-text { font-size: 14px; line-height: 1.6; color: #333; margin-bottom: 12px; }
.review-author { font-size: 13px; font-weight: 600; color: var(--muted); }

.faq-section { max-width: 800px; margin: 0 auto; padding: 60px 24px; }
.faq-section h2 { font-size: 26px; margin-bottom: 24px; text-align: center; }
.faq-item { background: #f7f8fa; border-radius: 10px; padding: 16px 20px; margin-bottom: 12px; }
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 15px; list-style: none; position: relative; padding-right: 24px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; position: absolute; right: 0; top: 0; font-size: 20px; color: var(--accent); }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { margin-top: 12px; font-size: 14px; color: #444; }

.accessories {
  background: #f7f8fa;
  padding: 60px 24px;
  text-align: center;
}
.accessories h2 { font-size: 26px; margin-bottom: 12px; }
.accessories .sub { max-width: 640px; margin: 0 auto 40px; font-size: 15px; color: var(--muted); }
.accessories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}
.accessory-card { background: #fff; border-radius: 10px; padding: 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.accessory-card img { aspect-ratio: 1; object-fit: contain; margin-bottom: 14px; }
.accessory-card p { font-size: 14px; font-weight: 600; margin-bottom: 14px; min-height: 40px; }

.site-footer { padding: 24px; text-align: center; border-top: 1px solid #eee; }
.disclaimer { font-size: 12px; color: #999; max-width: 700px; margin: 0 auto; }

@media (max-width: 800px) {
  .intro-split { grid-template-columns: 1fr; }
  .hero-inner { flex-direction: column; text-align: center; }
  .hero-text { text-align: center; }
  .product-block, .product-block.reverse { flex-direction: column; }
  .banner-strip { grid-template-columns: repeat(2, 1fr); }
  .accessories-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .usp-band { gap: 24px; }
}