:root {
  --ss-navy: #0b2a53;
  --ss-navy-2: #123d70;
  --ss-blue: #1675df;
  --ss-cyan: #14b8c7;
  --ss-green: #20b878;
  --ss-ink: #10233f;
  --ss-muted: #5d6f86;
  --ss-line: #dce6f1;
  --ss-soft: #f5f9fd;
  --ss-white: #ffffff;
  --ss-radius: 24px;
  --ss-shadow: 0 24px 70px rgba(25, 65, 112, 0.13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: clip; }
.landing-shell { color: var(--ss-ink); background: var(--ss-white); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: inherit; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section-pad { padding: 96px 0; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(220,230,241,.8); backdrop-filter: blur(16px); }
.header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 1.25rem; font-weight: 800; color: var(--ss-navy); }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 12px; background: linear-gradient(135deg, var(--ss-blue), var(--ss-cyan)); color: white; font-weight: 900; }
.desktop-nav { display: flex; gap: 26px; margin-left: auto; }
.desktop-nav a { text-decoration: none; color: var(--ss-muted); font-weight: 650; font-size: .95rem; }
.desktop-nav a:hover { color: var(--ss-blue); }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 14px; background: linear-gradient(135deg, var(--ss-blue), #0e65cd); color: #fff; font-weight: 750; text-decoration: none; box-shadow: 0 10px 28px rgba(22,117,223,.20); transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(22,117,223,.28); }
.button-small { min-height: 42px; padding: 0 18px; font-size: .9rem; }
.button-ghost { background: #fff; color: var(--ss-navy); border: 1px solid var(--ss-line); box-shadow: none; }

.hero { padding-top: 76px; overflow: hidden; background: radial-gradient(circle at 83% 10%, rgba(20,184,199,.10), transparent 32%), linear-gradient(180deg, #fff 0%, #f8fbff 100%); }
.hero-grid { display: grid; grid-template-columns: .86fr 1.14fr; align-items: center; gap: clamp(44px, 6vw, 84px); }
.hero-grid > *, .split-grid > *, .intro-grid > *, .contact-card > * { min-width: 0; }
.eyebrow { margin: 0 0 14px; color: var(--ss-blue); font-size: .8rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
h1,h2,h3,p { margin-top: 0; }
h1 { max-width: 720px; margin-bottom: 24px; font-size: clamp(2.75rem, 5.5vw, 4.8rem); line-height: .98; letter-spacing: -.055em; color: var(--ss-navy); }
h2 { margin-bottom: 22px; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.04; letter-spacing: -.04em; color: var(--ss-navy); }
h3 { color: var(--ss-navy); }
.hero-lead, .section-lead { color: var(--ss-muted); font-size: clamp(1.03rem, 1.7vw, 1.18rem); line-height: 1.7; }
.hero-lead { max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 20px; }
.contact-line { color: var(--ss-muted); font-size: .95rem; }
.contact-line a, .email-link { color: var(--ss-blue); font-weight: 750; }

.visual-frame { border-radius: 30px; overflow: hidden; background: #fff; box-shadow: var(--ss-shadow); }
.visual-frame picture, .visual-frame img { display: block; max-width: 100%; }
.visual-frame img { width: 100%; height: auto; object-fit: cover; }
.hero-visual { transform: perspective(1400px) rotateY(-1.5deg); }

.capabilities-strip { border-top: 1px solid var(--ss-line); border-bottom: 1px solid var(--ss-line); background: #fff; }
.strip-grid { min-height: 82px; display: grid; grid-template-columns: repeat(6, 1fr); align-items: center; gap: 14px; color: #63778f; font-weight: 750; text-align: center; }

.intro-grid { display: grid; grid-template-columns: 1fr .78fr; gap: 70px; align-items: end; margin-bottom: 42px; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.highlight-card { min-height: 170px; padding: 24px; border: 1px solid var(--ss-line); border-radius: 20px; background: #fff; }
.highlight-card h3 { margin: 18px 0 0; font-size: 1.02rem; line-height: 1.4; }
.check { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; background: rgba(32,184,120,.12); color: var(--ss-green); font-weight: 900; }

.section-soft { background: var(--ss-soft); }
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(46px, 6vw, 78px); align-items: center; }
.visual-frame-light { border: 1px solid rgba(220,230,241,.8); box-shadow: 0 22px 60px rgba(16,58,100,.11); }
.module-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 28px; }
.module-card { padding: 18px 18px 16px; border: 1px solid var(--ss-line); border-radius: 16px; background: rgba(255,255,255,.86); }
.module-card h3 { margin-bottom: 7px; font-size: .98rem; }
.module-card p { margin: 0; color: var(--ss-muted); line-height: 1.55; font-size: .91rem; }


.section-dark { background: #082746; color: #eaf4ff; }
.section-dark h2 { color: #fff; }
.eyebrow-light { color: #54d6d9; }
.section-lead-dark { color: #b9c9d9; }
.plain-list { display: grid; gap: 12px; padding: 0; margin: 28px 0 0; list-style: none; }
.plain-list li { position: relative; padding-left: 28px; color: #d7e4f0; }
.plain-list li::before { content: '✓'; position: absolute; left: 0; color: #52d49d; font-weight: 900; }
.visual-frame-dark { background: #0f365f; box-shadow: 0 24px 70px rgba(0,0,0,.24); }

.contact-section { background: #fff; }
.contact-card { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; padding: 48px; border-radius: 28px; background: linear-gradient(135deg, #f4f9ff 0%, #f4fbfa 100%); border: 1px solid #dce9f3; }
.contact-card h2 { margin-bottom: 12px; }
.contact-card p:last-child { margin-bottom: 0; color: var(--ss-muted); line-height: 1.65; }
.contact-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 15px; }

.site-footer { border-top: 1px solid var(--ss-line); background: #fbfdff; }
.footer-inner { min-height: 132px; display: flex; justify-content: space-between; align-items: center; gap: 28px; }
.footer-inner > div { display: flex; flex-direction: column; gap: 6px; color: var(--ss-muted); }
.footer-inner strong { color: var(--ss-navy); font-size: 1.2rem; }
.footer-inner a { color: var(--ss-blue); text-decoration: none; font-weight: 750; }

@media (max-width: 1024px) {
  .desktop-nav { display: none; }
  .hero-grid, .split-grid, .intro-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 780px; }
  .hero-visual { transform: none; max-width: 860px; }
  .highlight-grid { grid-template-columns: repeat(2, 1fr); }
  .strip-grid { grid-template-columns: repeat(3, 1fr); padding: 18px 0; }
  .contact-card { grid-template-columns: 1fr; }
  .order-visual { order: 2; }
  .infra-grid .visual-frame { margin-top: 8px; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), 1180px); }
  .section-pad { padding: 66px 0; }
  .site-header .button-small { display: none; }
  .header-inner { min-height: 64px; }
  .hero { padding-top: 54px; }
  .hero-grid { gap: 34px; }
  h1 { font-size: clamp(2.45rem, 12vw, 3.45rem); }
  h2 { font-size: clamp(2rem, 9vw, 2.8rem); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .visual-frame { border-radius: 22px; }
  .strip-grid { grid-template-columns: repeat(2, 1fr); font-size: .88rem; }
  .highlight-grid, .module-grid { grid-template-columns: 1fr; }
  .highlight-card { min-height: auto; }
  .contact-card { padding: 30px 24px; }
  .footer-inner { padding: 32px 0; flex-direction: column; align-items: flex-start; }
}