:root {
  --header-height: 164px;
  --navy: #10265b;
  --navy-deep: #0f172a;
  --blue: #1e3a8a;
  --teal: #0f766e;
  --green: #00a86b;
  --ink: #0f172a;
  --muted: #475569;
  --surface: #f8fafc;
  --line: #dbe5f0;
  --white: #ffffff;
  --shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 20px); }
body { margin: 0; padding-top: var(--header-height); min-width: 320px; overflow-x: hidden; color: var(--ink); background: var(--white); font-family: Inter, Arial, sans-serif; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.public-site-header { position: fixed; inset: 0 0 auto; z-index: 1000; min-height: var(--header-height); background: #ffffff; }
.nav-container { width: min(1820px, calc(100% - 48px)); min-height: var(--header-height); margin: 0 auto; display: flex; align-items: center; gap: 22px; }
.logo { width: 460px; height: 138px; flex: 0 0 auto; display: flex; align-items: center; overflow: visible; }
.logo img { width: 100%; height: 100%; display: block; object-fit: contain; object-position: left center; }
.desktop-nav { flex: 1 1 auto; min-width: 0; }
.desktop-nav ul { margin: 0; padding: 0; display: flex; align-items: center; justify-content: flex-end; gap: 2px; list-style: none; }
.desktop-nav a { display: inline-flex; min-height: 44px; align-items: center; padding: 10px 9px; border-radius: 8px; color: #0f172a; font-size: 14px; font-weight: 800; white-space: nowrap; }
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: #ffffff; background: #294a9d; outline: none; }
.site-actions { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.login-button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 0 22px; border-radius: 8px; color: #ffffff; background: #152b5b; box-shadow: 0 10px 24px rgba(15, 23, 42, 0.16); font-weight: 800; }
.login-button:hover, .login-button:focus-visible { background: #0f766e; outline: none; }
.hamburger { display: none; width: 46px; height: 46px; padding: 0; border: 0; border-radius: 8px; background: #1e3a8a; cursor: pointer; }
.hamburger span { display: block; width: 20px; height: 2px; margin: 4px auto; background: #ffffff; }
.mobile-nav { display: none; }

.system-hero { position: relative; min-height: 620px; display: flex; align-items: center; overflow: hidden; color: #ffffff; background: linear-gradient(90deg, rgba(10, 23, 54, 0.94) 0%, rgba(20, 48, 106, 0.82) 48%, rgba(15, 23, 42, 0.60) 100%), url('../../photo/websitebanner.png') center/cover no-repeat; }
.system-hero::after { content: ""; position: absolute; inset: auto 0 0; height: 28%; background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.34)); pointer-events: none; }
.hero-inner { position: relative; z-index: 1; width: min(1260px, calc(100% - 48px)); margin: 0 auto; padding: 88px 0; }
.hero-kicker { display: inline-flex; margin-bottom: 18px; padding: 7px 12px; border: 1px solid rgba(255, 255, 255, 0.38); border-radius: 999px; background: rgba(15, 23, 42, 0.42); color: #ffffff; font-size: 0.82rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; }
.hero-inner h1 { max-width: 820px; margin: 0; font-family: Montserrat, Arial, sans-serif; font-size: 4.7rem; line-height: 1.02; letter-spacing: 0; }
.hero-inner > p { max-width: 780px; margin: 24px 0 0; color: #eff6ff; font-size: 1.22rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 0 22px; border: 1px solid transparent; border-radius: 8px; font-weight: 800; }
.button-primary { color: #ffffff; background: #1d4ed8; }
.button-primary:hover, .button-primary:focus-visible { background: #0f766e; outline: none; }
.button-secondary { color: #ffffff; border-color: rgba(255, 255, 255, 0.75); background: rgba(255, 255, 255, 0.08); }
.button-secondary:hover, .button-secondary:focus-visible { color: #10265b; background: #ffffff; outline: none; }

.page-section { padding: 88px 24px; }
.section-inner { width: min(1180px, 100%); margin: 0 auto; }
.section-label { margin: 0 0 10px; color: #0f766e; font-size: 0.8rem; font-weight: 900; letter-spacing: 0.06em; text-transform: uppercase; }
.section-heading { max-width: 760px; margin: 0; color: #173d8f; font-family: Montserrat, Arial, sans-serif; font-size: 2.8rem; line-height: 1.12; }
.section-intro { max-width: 770px; margin: 18px 0 0; color: var(--muted); font-size: 1.08rem; }

.overview-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.overview-copy { padding-top: 8px; }
.value-stack { display: grid; gap: 12px; }
.value-item { display: grid; grid-template-columns: 46px 1fr; gap: 16px; align-items: start; padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; box-shadow: var(--shadow); }
.value-item i { width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; color: #0f766e; background: #ecfdf5; font-size: 1.2rem; }
.value-item h3 { margin: 1px 0 5px; font-family: Montserrat, Arial, sans-serif; font-size: 1.1rem; }
.value-item p { margin: 0; color: var(--muted); }

.module-section { background: var(--surface); }
.module-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 34px; }
.module-card { min-height: 210px; padding: 22px; border: 1px solid #dbe5f0; border-radius: 8px; background: #ffffff; box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05); }
.module-card i { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; margin-bottom: 28px; border-radius: 8px; color: #1e3a8a; background: #eff6ff; font-size: 1.2rem; }
.module-card h3 { margin: 0 0 8px; font-family: Montserrat, Arial, sans-serif; font-size: 1.03rem; }
.module-card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.operations-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 0.88fr); gap: 56px; align-items: center; }
.operations-image { width: 100%; min-height: 420px; border-radius: 8px; object-fit: cover; box-shadow: var(--shadow); }
.check-list { display: grid; gap: 14px; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; color: #334155; }
.check-list i { color: #00a86b; padding-top: 4px; }
.check-list strong { display: block; margin-bottom: 2px; color: #10265b; }

.system-cta { padding: 70px 24px; color: #ffffff; background: #10265b; }
.system-cta-inner { width: min(1000px, 100%); margin: 0 auto; text-align: center; }
.system-cta h2 { margin: 0; font-family: Montserrat, Arial, sans-serif; font-size: 2.7rem; line-height: 1.12; }
.system-cta p { max-width: 720px; margin: 18px auto 0; color: #dbeafe; font-size: 1.08rem; }
.system-cta .hero-actions { justify-content: center; }

footer { padding: 36px 24px; color: #ffffff; background: #152b5b; text-align: center; }
footer p { margin: 4px 0; color: #dbeafe; }
footer a:hover, footer a:focus-visible { color: #6ee7b7; outline: none; }
.footer-socials { display: flex; justify-content: center; gap: 18px; margin-top: 16px; }
.footer-socials a { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; color: #ffffff; border: 1px solid rgba(255, 255, 255, 0.28); border-radius: 8px; }

@media (max-width: 1360px) {
  .nav-container { width: min(100% - 36px, 1760px); gap: 14px; }
  .logo { width: 360px; height: 112px; }
  .desktop-nav a { padding: 9px 7px; font-size: 12px; }
}

@media (max-width: 1180px) {
  :root { --header-height: 124px; }
  .nav-container { min-height: var(--header-height); padding: 8px 0; }
  .logo { width: 320px; height: 104px; }
  .desktop-nav { display: none; }
  .site-actions { margin-left: auto; }
  .hamburger { display: inline-block; }
  .mobile-nav { position: fixed; z-index: 999; top: calc(var(--header-height) + 8px); left: 10px; right: 10px; max-height: calc(100dvh - var(--header-height) - 18px); padding: 10px; overflow-y: auto; border: 1px solid #dbe5f0; border-radius: 8px; background: #ffffff; box-shadow: 0 20px 40px rgba(15, 23, 42, 0.18); }
  .mobile-nav.open { display: block; }
  .mobile-nav ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
  .mobile-nav a { display: flex; min-height: 48px; align-items: center; justify-content: center; padding: 10px 14px; border: 1px solid #dbe5f0; border-radius: 8px; color: #0f172a; background: #f8fafc; font-weight: 800; }
  .mobile-nav a:hover, .mobile-nav a:focus-visible { color: #ffffff; background: #294a9d; outline: none; }
  .overview-grid, .operations-grid { gap: 34px; }
  .module-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .system-hero { min-height: 560px; }
  .hero-inner h1 { font-size: 3.25rem; }
  .overview-grid, .operations-grid { grid-template-columns: 1fr; }
  .operations-image { min-height: 340px; }
  .section-heading, .system-cta h2 { font-size: 2.3rem; }
}

@media (max-width: 600px) {
  :root { --header-height: 78px; }
  .nav-container { width: min(100% - 24px, 100%); min-height: var(--header-height); gap: 10px; }
  .logo { width: 162px; height: 62px; }
  .login-button { display: none; }
  .hamburger { width: 42px; height: 42px; }
  .mobile-nav { top: calc(var(--header-height) + 8px); }
  .system-hero { min-height: 520px; background-position: 58% center; }
  .hero-inner { width: min(100% - 28px, 100%); padding: 56px 0; }
  .hero-kicker { max-width: 100%; font-size: 0.7rem; text-align: center; white-space: normal; }
  .hero-inner h1 { font-size: 2.35rem; }
  .hero-inner > p { font-size: 1rem; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .page-section { padding: 62px 18px; }
  .section-heading, .system-cta h2 { font-size: 2rem; }
  .section-intro { font-size: 1rem; }
  .module-grid { grid-template-columns: 1fr; }
  .module-card { min-height: 0; }
  .module-card i { margin-bottom: 18px; }
  .operations-image { min-height: 260px; }
  .system-cta { padding: 58px 18px; }
}