:root {
  --bg: #061014;
  --panel: rgba(16, 31, 37, 0.86);
  --line: rgba(139, 212, 194, 0.2);
  --line-strong: rgba(117, 238, 199, 0.44);
  --text: #edf8f5;
  --muted: #94aaa8;
  --accent: #39d79c;
  --accent-2: #7ce7d8;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: radial-gradient(circle at 18% 0%, rgba(57, 215, 156, 0.12), transparent 28rem), linear-gradient(180deg, #040a0d, #071116 50%, #05090c);
  -webkit-font-smoothing: antialiased;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image: linear-gradient(rgba(124,231,216,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(124,231,216,.035) 1px, transparent 1px);
  background-size: 72px 72px;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 78px;
  padding: 0 7vw;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 10, 13, .86);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #03110d;
  font-size: 24px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  clip-path: polygon(50% 0, 100% 86%, 0 86%);
}
.brand strong { display: block; font-size: 22px; line-height: 1.05; }
.brand small { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; letter-spacing: .08em; }
.nav { display: flex; justify-content: center; gap: 30px; color: #d7e5e2; font-size: 14px; white-space: nowrap; }
.nav a { padding: 30px 0 28px; }
.header-cta, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid var(--line-strong);
  font-weight: 800;
  font-size: 14px;
  transition: transform .18s ease;
}
.header-cta, .btn.primary { color: #02100d; border-color: transparent; background: linear-gradient(135deg, #7ce7d8, #24c777 70%); }
.btn.secondary { background: rgba(5, 14, 18, .42); }
.header-cta:hover, .btn:hover { transform: translateY(-2px); }
.menu-toggle { display: none; }
.hero { position: relative; min-height: 690px; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-media {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(4,10,13,.94), rgba(4,10,13,.6) 45%, rgba(4,10,13,.3)), linear-gradient(0deg, rgba(4,10,13,.94), transparent 38%), url("../assets/hero-tactical-command.png") center / cover no-repeat;
}
.hero-content { position: relative; z-index: 1; width: min(680px, 88vw); padding: 150px 0 96px; margin-left: 7vw; }
.eyebrow { margin: 0 0 14px; color: var(--accent-2); font-size: 12px; font-weight: 900; letter-spacing: .12em; }
h1, h2, h3, p { margin-top: 0; }
h1 { display: grid; max-width: 12ch; margin-bottom: 24px; font-size: clamp(48px, 7vw, 92px); line-height: 1.05; text-shadow: 0 10px 32px rgba(0,0,0,.48); }
h2 { margin-bottom: 14px; font-size: clamp(30px, 4vw, 46px); line-height: 1.15; }
h3 { margin-bottom: 10px; font-size: 20px; }
p, li, dd { color: var(--muted); line-height: 1.75; }
.hero-lede { max-width: 620px; color: #d3e1dd; font-size: clamp(17px, 2vw, 22px); line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 18px; margin: 34px 0; }
.hero-actions .btn { min-width: 176px; min-height: 54px; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); width: min(600px, 100%); border: 1px solid var(--line); background: rgba(4,15,18,.68); box-shadow: var(--shadow); }
.hero-stats div { padding: 18px 20px; border-right: 1px solid var(--line); }
.hero-stats div:last-child { border-right: 0; }
.hero-stats strong, .hero-stats span { display: block; }
.hero-stats strong { font-size: 24px; }
.hero-stats span { margin-top: 4px; color: var(--muted); font-size: 13px; }
.signal-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; padding: 0 7vw; background: rgba(124,231,216,.09); border-bottom: 1px solid var(--line); }
.signal-strip div { padding: 24px 22px; background: rgba(7,18,22,.94); font-weight: 800; }
.signal-strip span { margin-right: 12px; color: var(--accent); }
.section, .contact-section { padding: 88px 7vw; border-bottom: 1px solid var(--line); }
.section-heading { max-width: 720px; margin: 0 auto 38px; text-align: center; }
.row-heading { display: flex; align-items: end; justify-content: space-between; max-width: none; text-align: left; }
.row-heading a, .case-card a { color: var(--accent-2); font-weight: 900; }
.advantage-grid, .case-grid, .security-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.advantage-grid article, .security-grid article, .case-card { border: 1px solid var(--line); background: linear-gradient(180deg, rgba(22,43,51,.78), rgba(12,24,29,.74)); }
.advantage-grid article, .security-grid article { padding: 30px; }
.advantage-grid span { display: inline-grid; width: 52px; height: 52px; place-items: center; margin-bottom: 28px; color: var(--accent); border: 1px solid var(--line-strong); border-radius: 50%; background: rgba(57,215,156,.08); font-weight: 900; }
.split { display: grid; grid-template-columns: minmax(0,.9fr) minmax(360px,1.1fr); gap: 58px; align-items: center; }
.copy-block { max-width: 640px; }
.check-list { display: grid; gap: 12px; padding: 0; margin: 28px 0 32px; list-style: none; }
.check-list li::before { margin-right: 10px; color: var(--accent); content: "✓"; }
.image-panel { position: relative; min-height: 420px; overflow: hidden; border: 1px solid var(--line-strong); background: var(--panel); box-shadow: var(--shadow); }
.image-panel img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }
.panel-card { position: absolute; right: 28px; bottom: 28px; width: min(310px, calc(100% - 56px)); padding: 22px; border: 1px solid var(--line); background: rgba(5,14,18,.78); backdrop-filter: blur(10px); }
.panel-card strong, .panel-card span { display: block; }
.panel-card span { margin-top: 8px; color: var(--muted); line-height: 1.6; }
.case-card { overflow: hidden; }
.case-img { height: 190px; background-image: url("../assets/account-cases-showcase.png"); background-size: 360%; border-bottom: 1px solid var(--line); }
.crop-a { background-position: 2% 38%; } .crop-b { background-position: 34% 36%; } .crop-c { background-position: 66% 34%; } .crop-d { background-position: 96% 38%; }
.case-card h3, .case-card p, .case-card div, .case-card a { margin-right: 20px; margin-left: 20px; }
.case-card h3 { margin-top: 20px; }
.case-card div { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.case-card span { padding: 6px 10px; color: #9ff1ce; background: rgba(57,215,156,.1); border: 1px solid rgba(57,215,156,.22); font-size: 12px; }
.case-card a { display: inline-block; margin-bottom: 24px; }
.process-line { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.process-line article { position: relative; padding: 28px 20px; text-align: center; }
.process-line article:not(:last-child)::after { position: absolute; top: 48px; right: -16px; color: var(--accent-2); content: "→"; font-size: 28px; }
.process-line span { display: inline-grid; width: 56px; height: 56px; place-items: center; margin-bottom: 18px; color: #02100d; border-radius: 50%; background: linear-gradient(135deg, var(--accent-2), var(--accent)); font-weight: 900; }
.security { background: radial-gradient(circle at 50% 45%, rgba(57,215,156,.13), transparent 24rem), rgba(3,9,12,.42); }
.contact-section { display: grid; grid-template-columns: minmax(0,.72fr) minmax(420px,1fr); gap: 64px; align-items: start; }
.contact-copy h2 { max-width: 10ch; }
.contact-copy dl { display: grid; gap: 18px; margin-top: 34px; }
.contact-copy dt { color: var(--accent-2); font-weight: 900; }
.contact-copy dd { margin: 4px 0 0; }
.contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 30px; border: 1px solid var(--line-strong); background: linear-gradient(180deg, rgba(18,35,42,.9), rgba(8,18,23,.92)); box-shadow: var(--shadow); }
.contact-form h3, .contact-form .wide { grid-column: 1 / -1; }
label { display: grid; gap: 8px; color: #d8e8e5; font-size: 14px; font-weight: 800; }
input, select, textarea { width: 100%; min-height: 46px; padding: 12px 14px; color: var(--text); border: 1px solid rgba(139,212,194,.24); border-radius: 0; outline: none; background: rgba(3,10,13,.8); font: inherit; }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
.form-success { display: none; grid-column: 1 / -1; margin: 0; padding: 14px 16px; color: #bff8dc; border: 1px solid rgba(57,215,156,.34); background: rgba(57,215,156,.1); }
.contact-form.is-submitted .form-success { display: block; }
.footer { display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center; padding: 34px 7vw; color: var(--muted); background: #04090c; }
.footer nav { display: flex; justify-content: center; gap: 24px; font-size: 13px; }
.footer p { margin: 0; font-size: 13px; }
@media (max-width: 1120px) {
  .site-header { padding: 0 4vw; gap: 16px; }
  .nav { gap: 20px; }
  .advantage-grid, .case-grid, .security-grid { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-section { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .site-header { grid-template-columns: auto auto; justify-content: space-between; min-height: 68px; }
  .header-cta { display: none; }
  .menu-toggle { display: inline-grid; gap: 5px; width: 44px; height: 44px; place-content: center; border: 1px solid var(--line); background: rgba(5,14,18,.72); }
  .menu-toggle span { display: block; width: 20px; height: 2px; background: var(--text); }
  .nav { position: absolute; top: 68px; right: 0; left: 0; display: none; flex-direction: column; gap: 0; padding: 12px 6vw 20px; background: rgba(4,10,13,.99); border-bottom: 1px solid var(--line); box-shadow: 0 20px 42px rgba(0,0,0,.5); }
  .nav.is-open { display: flex; }
  .nav a { padding: 14px 0; }
  .hero { min-height: auto; }
  .hero-media { background: linear-gradient(180deg, rgba(4,10,13,.72), rgba(4,10,13,.92) 58%, #040a0d), url("../assets/hero-tactical-command.png") 64% 0 / cover no-repeat; }
  .hero-content { width: auto; padding: 96px 6vw 56px; margin: 0; }
  h1 { max-width: 9ch; font-size: clamp(42px, 12vw, 54px); }
  .hero-stats, .signal-strip, .advantage-grid, .case-grid, .process-line, .security-grid, .contact-form, .footer { grid-template-columns: 1fr; }
  .hero-stats div { border-right: 0; border-bottom: 1px solid var(--line); }
  .hero-stats div:last-child { border-bottom: 0; }
  .signal-strip, .section, .contact-section, .footer { padding-right: 6vw; padding-left: 6vw; }
  .section, .contact-section { padding-top: 64px; padding-bottom: 64px; }
  .row-heading { display: block; }
  .row-heading a { display: inline-block; margin-top: 8px; }
  .image-panel, .image-panel img { min-height: 300px; }
  .case-img { height: 220px; }
  .process-line article { padding: 20px 0; text-align: left; border-bottom: 1px solid var(--line); }
  .process-line article:not(:last-child)::after { display: none; }
  .process-line span { margin-right: 14px; margin-bottom: 0; vertical-align: middle; }
  .contact-section { gap: 34px; }
  .contact-form { padding: 22px; }
  .footer { justify-items: start; }
  .footer nav { flex-wrap: wrap; justify-content: flex-start; }
}
@media (max-width: 480px) {
  .brand strong { font-size: 19px; }
  .brand-mark { width: 34px; height: 34px; font-size: 20px; }
  .hero-actions { display: grid; }
  .hero-actions .btn { width: 100%; }
  .advantage-grid article, .security-grid article { padding: 24px; }
  .panel-card { right: 16px; bottom: 16px; width: calc(100% - 32px); }
}