@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Montserrat:wght@600;700;800;900&display=swap");

:root {
  color-scheme: light;
  --bg: #f4f8fb;
  --bg-2: #eef4f8;
  --surface: #ffffff;
  --surface-soft: #f8fbfd;
  --text: #172b42;
  --muted: #617185;
  --soft: #8796a8;
  --navy: #0b2f4f;
  --navy-2: #123c63;
  --blue: #006bb6;
  --blue-2: #00a3e0;
  --blue-soft: rgba(0, 107, 182, .10);
  --orange: #f28c28;
  --orange-2: #ffab45;
  --line: rgba(23, 43, 66, .12);
  --line-strong: rgba(23, 43, 66, .22);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 22px 60px rgba(13, 55, 91, .13);
}

* { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background:
    radial-gradient(circle at 10% 0%, rgba(0,163,224,.12), transparent 24rem),
    radial-gradient(circle at 100% 12%, rgba(0,107,182,.10), transparent 24rem),
    linear-gradient(180deg, #ffffff 0, var(--bg) 42rem, var(--bg-2));
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(23,43,66,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23,43,66,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.82), transparent 68%);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }

.page { width: min(1180px, calc(100% - 44px)); margin: 0 auto; padding: 22px 0 70px; position: relative; }
.page-narrow { width: min(860px, calc(100% - 44px)); }
.page-content { min-height: 100vh; }

.nav {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px 16px; margin: 0 0 30px;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(23,43,66,.08);
  border-radius: 0 0 20px 20px;
  backdrop-filter: blur(18px) saturate(160%);
  box-shadow: 0 14px 40px rgba(13,55,91,.08);
}
.brand { display: inline-flex; align-items: center; gap: 14px; min-width: 0; }
.brand-logo { width: 64px; height: 64px; object-fit: contain; border-radius: 14px; }
.brand-text-wrap { display: flex; flex-direction: column; gap: 0; min-width: 0; }
.brand-text { font-family: "Montserrat", "Inter", sans-serif; font-size: 20px; font-weight: 800; letter-spacing: -.035em; line-height: 1; color: var(--navy); }
.brand-subtext { display: none; }
.nav-links { display: flex; gap: 8px; align-items: center; justify-content: flex-end; flex-wrap: wrap; }
.nav-link { color: var(--muted); font-size: 14px; font-weight: 750; letter-spacing: .01em; padding: 10px 14px; border-radius: 999px; transition: background .18s ease, color .18s ease, border-color .18s ease; border: 1px solid transparent; }
.nav-link:hover, .nav-link.active { color: var(--navy); background: var(--blue-soft); border-color: rgba(0,107,182,.12); }

.hero, .detail-hero { display: grid; gap: 18px; align-items: stretch; }
.hero-product { grid-template-columns: minmax(0, 1.12fr) minmax(340px, .88fr); min-height: 550px; }
.hero-copy, .panel-dark, .detail-hero {
  background:
    linear-gradient(135deg, rgba(0,163,224,.10), transparent 36%),
    linear-gradient(180deg, var(--surface), var(--surface-soft));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(32px, 5vw, 66px); }
.eyebrow, .section-label { margin: 0 0 12px; color: var(--blue); font-size: 13px; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
.invert { color: var(--blue-2); }
h1, h2, h3, p { margin-top: 0; }
.hero h1, .detail-hero h1, .content-panel h1 { font-family: "Montserrat", "Inter", sans-serif; margin-bottom: 18px; color: var(--navy); font-size: clamp(40px, 6vw, 78px); line-height: .94; letter-spacing: -.065em; font-weight: 900; }
.content-panel h1 { font-size: clamp(34px, 5vw, 58px); }
.hero-lead, .lead { color: #485a6e; font-size: clamp(18px, 2vw, 22px); max-width: 760px; letter-spacing: -.018em; line-height: 1.68; }
.lead { color: var(--muted); }
.hero-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.pill { display: inline-flex; align-items: center; min-height: 34px; padding: 8px 13px; border-radius: 999px; border: 1px solid rgba(0,107,182,.18); background: #eef7fc; color: var(--navy); font-size: 12px; font-weight: 800; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; }
.btn, .btn-submit { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; padding: 12px 20px; border: 1px solid transparent; font-size: 14px; font-weight: 850; line-height: 1; cursor: pointer; transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease; }
.btn:hover, .btn-submit:hover { transform: translateY(-1px); }
.btn-primary, .btn-submit { color: #fff; background: linear-gradient(135deg, var(--orange), var(--orange-2)); box-shadow: 0 16px 32px rgba(242,140,40,.26); }
.btn-secondary { color: var(--navy); background: var(--surface); border-color: var(--line-strong); }
.btn-secondary:hover { background: #f5f9fc; border-color: rgba(0,107,182,.25); }
.btn.full { width: 100%; }
.btn-nav-buy { min-height: 40px; padding: 10px 18px; color: #fff; background: linear-gradient(135deg, var(--orange), var(--orange-2)); box-shadow: 0 12px 26px rgba(242,140,40,.23); }
.btn-nav-buy:hover { color: #fff; }

.product-showcase { display: flex; }
.showcase-card { flex: 1; min-height: 550px; border-radius: var(--radius); border: 1px solid var(--line); background: linear-gradient(180deg, #ffffff, #f7fbfd); box-shadow: var(--shadow); padding: 30px; display: flex; flex-direction: column; justify-content: space-between; }
.product-logo, .detail-product-logo { width: min(100%, 320px); margin: auto; object-fit: contain; border-radius: 18px; filter: drop-shadow(0 18px 36px rgba(13,55,91,.18)); }
.showcase-meta { padding-top: 18px; border-top: 1px solid var(--line); display: grid; gap: 5px; }
.showcase-meta span, .showcase-meta small { color: var(--soft); }
.showcase-meta strong { color: var(--navy); font-size: 22px; font-family: "Montserrat", "Inter", sans-serif; letter-spacing: -.035em; }

.strip { display: grid; gap: 1px; margin: 24px 0 58px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); box-shadow: 0 14px 42px rgba(13,55,91,.07); }
.strip-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.strip div { padding: 22px; background: var(--surface); }
.strip strong { display: block; margin-bottom: 7px; color: var(--navy); font-size: 15px; }
.strip span { color: var(--muted); font-size: 14px; }

.section { margin-top: 76px; }
.section-head { display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 6px; margin-bottom: 26px; }
.section h2, .content-panel h2 { font-family: "Montserrat", "Inter", sans-serif; color: var(--navy); font-size: clamp(28px, 3.4vw, 44px); line-height: 1.06; letter-spacing: -.045em; margin-bottom: 0; }
.panel-dark h2 { color: #fff; margin-bottom: 14px; }
.panel-dark p { color: rgba(255,255,255,.80); }
.grid { display: grid; gap: 18px; }
.cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .panel-light, .price-panel, .content-panel, .form-card, .spec-card, .cta-band { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: 0 16px 42px rgba(13,55,91,.08); }
.card { padding: 26px; min-height: 225px; }
.card-index { display: inline-flex; width: 48px; height: 48px; align-items: center; justify-content: center; border-radius: 14px; background: var(--blue-soft); color: var(--blue); font-family: "Montserrat", "Inter", sans-serif; font-size: 20px; font-weight: 900; letter-spacing: -.03em; line-height: 1; }
.card h3, .panel-light h3, .price-panel h3 { margin: 18px 0 10px; color: var(--navy); font-family: "Montserrat", "Inter", sans-serif; font-size: 22px; line-height: 1.16; letter-spacing: -.03em; }
.card p, .panel-light p, .price-panel p, .content-panel p, .prose p, .mini-note { color: var(--muted); }
.split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr); gap: 18px; align-items: stretch; }
.split-feature { grid-template-columns: minmax(0, 1.18fr) minmax(280px, .82fr); }
.panel-dark, .panel-light, .price-panel, .content-panel { padding: clamp(26px, 4vw, 42px); }
.panel-dark { background: linear-gradient(135deg, var(--navy), #0f416c 70%, #0b2f4f); color: #fff; box-shadow: var(--shadow); }
.clean-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.clean-list li { position: relative; padding-left: 24px; color: var(--muted); }
.clean-list li::before { content: ""; position: absolute; left: 0; top: .63em; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, var(--blue), var(--blue-2)); }
.light-list li { color: rgba(255,255,255,.82); }
.footer { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-top: 76px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--soft); font-size: 13px; }
.footer p { max-width: 520px; margin: 0; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer a { color: var(--muted); font-weight: 750; }
.footer a:hover { color: var(--navy); }
.back-link { display: inline-flex; margin-bottom: 20px; color: var(--muted); font-size: 14px; font-weight: 750; }
.back-link:hover { color: var(--navy); }
.detail-hero { grid-template-columns: minmax(0, 1fr) minmax(290px, 380px); padding: clamp(32px, 5vw, 60px); }
.spec-card { padding: 20px; background: #f9fcfe; }
.product-side-card { display: flex; flex-direction: column; gap: 10px; }
.spec-line { display: flex; justify-content: space-between; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.spec-line:last-child { border-bottom: 0; }
.spec-line span { color: var(--soft); }
.spec-line strong { color: var(--navy); }
.price-panel { background: linear-gradient(135deg, rgba(0,107,182,.08), transparent 45%), var(--surface); }
.content-panel { padding: clamp(28px, 5vw, 56px); }
.prose h2 { margin-top: 34px; margin-bottom: 10px; font-size: 28px; }
.inline-link { color: var(--blue); font-weight: 850; }
.form-card { margin-top: 28px; padding: 22px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-group { display: grid; gap: 7px; }
.form-group.full { grid-column: 1 / -1; }
label { color: var(--navy); font-size: 13px; font-weight: 800; }
input, textarea { width: 100%; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: #fff; color: var(--text); outline: none; padding: 12px 13px; transition: border-color .18s ease, box-shadow .18s ease; }
textarea { min-height: 140px; resize: vertical; }
input:focus, textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 4px var(--blue-soft); }
.btn-submit { width: 100%; margin-top: 16px; }
.form-note { color: var(--soft) !important; font-size: 13px; margin: 12px 0 0; }

@media (max-width: 920px) {
  .hero-product, .detail-hero, .split, .cards-3, .cards-2, .strip-4 { grid-template-columns: 1fr; }
  .showcase-card { min-height: 380px; }
  .section-head { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 620px) {
  .page { width: min(100% - 28px, 1180px); padding-top: 14px; }
  .nav { align-items: flex-start; flex-direction: column; margin-bottom: 20px; padding: 12px; }
  .nav-links { justify-content: flex-start; }
  .brand-logo { width: 58px; height: 58px; }
  .hero-copy { padding: 30px 22px; }
  .hero h1, .detail-hero h1, .content-panel h1 { font-size: 38px; }
  .form-grid { grid-template-columns: 1fr; }
  .btn:not(.btn-nav-buy) { width: 100%; }
}