:root {
  --bg: #f3f5f7;
  --panel: #ffffff;
  --panel-alt: #eef2f5;
  --text: #15202b;
  --muted: #5d6b78;
  --line: rgba(21, 32, 43, 0.12);
  --blue: #1d5c92;
  --blue-dark: #123b61;
  --shadow: 0 18px 42px rgba(17, 33, 49, 0.08);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,255,255,0.94)),
    radial-gradient(circle at top right, rgba(29, 92, 146, 0.12), transparent 36%),
    var(--bg);
  font-family: "Bahnschrift", "Segoe UI", "Helvetica Neue", sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; border-radius: 18px; }
#chatbox img,
#common_pop_chat img {
  display: inline;
  width: auto;
  max-width: none;
  height: auto;
  border-radius: 0;
}
.shell { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: auto; }
.skip-link:focus { left: 16px; top: 16px; z-index: 1000; background: #fff; padding: 10px 14px; border-radius: 8px; }
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(16px); background: rgba(70,130,180,0.86); border-bottom: 1px solid var(--line); }
.nav-shell { display: flex; align-items: center; gap: 18px; padding: 12px 0; }
.brand img { width: 180px; height: auto; }
.nav-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--text); padding: 10px 14px; border-radius: 999px; }
.site-nav { display: flex; gap: 10px; margin-left: auto; flex-wrap: wrap; }
.site-nav a { padding: 10px 14px; border-radius: 999px; color: #fff; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--blue-dark); background: rgba(29, 92, 146, 0.08); }
.hero, .page-hero { padding: 32px 0 10px; }
.hero-grid, .split-band { display: grid; gap: 26px; grid-template-columns: 1.1fr 0.9fr; align-items: center; }
.hero-copy h1, .page-hero h1 { font-size: clamp(2.2rem, 4vw, 4.5rem); line-height: 1.02; margin: 8px 0 14px; letter-spacing: -0.03em; }
.hero-copy p, .page-hero p { color: var(--muted); font-size: 1.05rem; margin: 0 0 18px; max-width: 65ch; }
.hero-media { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero-media img { aspect-ratio: 1 / 1; min-height: 0; object-fit: cover; box-shadow: var(--shadow); }
.hero-side img { min-height: 340px; object-fit: cover; box-shadow: var(--shadow); }
.compact h1 { font-size: clamp(1.9rem, 3vw, 3.4rem); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; text-transform: uppercase; letter-spacing: 0.18em; color: var(--blue); font-size: 0.74rem; font-weight: 700; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--blue); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 700; }
.btn.primary { background: linear-gradient(135deg, var(--blue), var(--blue-dark)); color: #fff; box-shadow: 0 12px 28px rgba(29, 92, 146, 0.22); }
.btn.secondary { background: rgba(255,255,255,0.6); border-color: rgba(21,32,43,0.14); color: var(--text); }
.content-band { padding: 28px 0 6px; }
.content-band.alt { padding-top: 16px; }
.section-heading { margin-bottom: 20px; }
.section-heading h2 { margin: 8px 0 8px; font-size: clamp(1.5rem, 2vw, 2.2rem); }
.section-intro, .section-note { margin: 0; color: var(--muted); max-width: 68ch; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 18px;
  font-size: 0.9rem;
  color: var(--muted);
}
.breadcrumb a { color: var(--blue-dark); }
.breadcrumb .crumb-sep { opacity: 0.45; }
.breadcrumb [aria-current="page"] { color: var(--text); font-weight: 700; }
.breadcrumb { flex-wrap: wrap; row-gap: 6px; line-height: 1.35; }
.breadcrumb a, .breadcrumb [aria-current="page"] { min-width: 0; }
.trust-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 18px; }
.stat { padding: 18px; background: rgba(255,255,255,0.8); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.stat strong { display: block; font-size: 1.2rem; margin-bottom: 4px; }
.stat span { color: var(--muted); font-size: 0.95rem; }
.grid { display: grid; gap: 16px; }
.cards-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .info-card, .proof-panel, .form-panel, .callout, .faq-item { background: rgba(255,255,255,0.82); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.card { overflow: hidden; display: flex; flex-direction: column; }
.card img { border-radius: 0; aspect-ratio: 16 / 10; object-fit: cover; }
.card-body { padding: 16px; }
.card-body h3, .info-card h3, .proof-panel h2, .form-panel h2 { margin: 0 0 8px; line-height: 1.15; }
.card-body p, .info-card p, .proof-panel p { margin: 0; color: var(--muted); }
.tag, .chip { display: inline-flex; align-items: center; padding: 6px 10px; border-radius: 999px; background: rgba(29, 92, 146, 0.08); color: var(--blue-dark); font-size: 0.78rem; font-weight: 700; }
.meta { display: inline-block; margin-top: 12px; color: var(--muted); font-size: 0.9rem; }
.linkish { color: var(--blue); font-weight: 700; }
.split-band { padding: 14px 0 22px; }
.proof-panel, .form-panel, .callout { padding: 22px; }
.check-list, .bullets { margin: 0; padding-left: 18px; }
.check-list li, .bullets li { margin-bottom: 10px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.category-hero .hero-side img { aspect-ratio: 16 / 10; object-fit: cover; }
.copy-block p { margin: 0 0 14px; color: var(--muted); }
.param-grid { display: grid; gap: 16px; }
.param-figure { margin: 0; padding: 16px; background: rgba(255,255,255,0.88); border: 1px solid var(--line); border-radius: 20px; }
.param-figure figcaption { margin-top: 10px; color: var(--muted); font-size: 0.94rem; }
.param-table-wrap { padding: 14px 14px 10px; background: rgba(255,255,255,0.9); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
.param-table-scroll { overflow-x: auto; }
.param-table { width: 100%; min-width: 860px; border-collapse: separate; border-spacing: 0; table-layout: fixed; }
.param-table caption { caption-side: bottom; padding-top: 10px; color: var(--muted); font-size: 0.92rem; text-align: left; }
.param-table th, .param-table td {
  padding: 13px 14px;
  border-bottom: 1px solid rgba(12, 28, 43, 0.08);
  color: var(--text);
  vertical-align: middle;
  word-break: break-word;
  line-height: 1.25;
}
.param-table thead th {
  background: linear-gradient(180deg, rgba(29, 92, 146, 0.1), rgba(29, 92, 146, 0.04));
  font-size: 0.92rem;
  font-weight: 700;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 1;
}
.param-table tbody tr:nth-child(odd) th,
.param-table tbody tr:nth-child(odd) td { background: rgba(12, 28, 43, 0.02); }
.param-table tbody tr:hover th,
.param-table tbody tr:hover td { background: rgba(29, 92, 146, 0.06); }
.param-table th[scope="row"] {
  text-align: center;
  font-weight: 700;
  position: sticky;
  left: 0;
  z-index: 1;
  background-clip: padding-box;
}
.param-table td, .param-table th[scope="col"] {
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 4px 18px; }
.faq-item summary { cursor: pointer; list-style: none; padding: 16px 0; font-weight: 700; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-answer { padding: 0 0 18px; color: var(--muted); }
.inquiry-form { display: grid; gap: 12px; }
.inquiry-form label { display: grid; gap: 8px; font-weight: 700; }
.inquiry-form input, .inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  background: #fff;
  color: var(--text);
  font: inherit;
}
.site-footer { margin-top: 26px; padding: 30px 0 20px; background: #5c6c78; color: rgba(255,255,255,0.88); }
.site-footer a { color: #fff; }
.footer-grid { display: grid; gap: 18px; grid-template-columns: 1.2fr 1fr 1fr; }
.footer-brand { font-size: 1.2rem; font-weight: 700; display: inline-block; margin-bottom: 10px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 20px; padding-top: 16px; color: rgba(255,255,255,0.64); }
.page-product .hero-side img, .page-category .hero-side img { aspect-ratio: 16 / 10; object-fit: cover; }
.link-card { padding: 18px; }
.link-card h3 { margin: 0; }

@media (max-width: 1024px) {
  .hero-grid, .split-band, .footer-grid, .trust-strip, .cards-4, .cards-3, .cards-2 { grid-template-columns: 1fr 1fr; }
  .cards-4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .shell { width: min(100% - 20px, 100%); }
  .nav-shell { flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .site-nav { display: none; width: 100%; padding: 8px 0 0; }
  .site-nav.open { display: flex; flex-direction: column; }
  .hero-grid, .split-band, .footer-grid, .trust-strip, .cards-4, .cards-3, .cards-2 { grid-template-columns: 1fr; }
  .hero-media { grid-template-columns: 1fr; }
  .hero-copy h1, .page-hero h1 { font-size: clamp(2rem, 8vw, 3rem); }
}