:root {
  --red: #f01922;
  --red-2: #ff4a42;
  --red-dark: #7a0810;
  --ink: #080a10;
  --ink-2: #111620;
  --muted: rgba(255,255,255,.66);
  --line: rgba(255,255,255,.13);
  --white: #fff;
  --gold: #d7b46a;
  --gold-2: #f6d990;
  --blue: #13a7c7;
  --green: #16b979;
  --shadow: 0 30px 90px rgba(0,0,0,.34);
  --radius: 32px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--white);
  background: #07080c;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 16%, rgba(122,8,16,.6) 0, transparent 32%),
    radial-gradient(circle at 84% 30%, rgba(19,167,199,.2) 0, transparent 28%),
    linear-gradient(135deg, #05060a 0%, #11151f 52%, #080a10 100%);
}
.site-bg::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    linear-gradient(120deg, transparent 0 42%, rgba(255,255,255,.06) 43%, transparent 44% 100%),
    linear-gradient(30deg, transparent 0 55%, rgba(240,25,34,.11) 56%, transparent 57% 100%);
  opacity: .5;
}
.grid-light {
  position: absolute;
  inset: 0;
  opacity: .19;
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 12%, #000 0, transparent 72%);
}
.orb { position: absolute; border-radius: 999px; filter: blur(16px); opacity: .48; }
.orb-red { width: 560px; height: 560px; background: radial-gradient(circle, rgba(240,25,34,.76), transparent 68%); left: -170px; top: 70px; }
.orb-gold { width: 300px; height: 300px; background: radial-gradient(circle, rgba(215,180,106,.32), transparent 66%); left: 46%; top: 22%; }
.orb-blue { width: 460px; height: 460px; background: radial-gradient(circle, rgba(19,167,199,.46), transparent 70%); right: -160px; bottom: 150px; }

.section-pad { padding: 112px 7vw; }
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 7vw;
  transition: .3s ease;
}
.site-header.is-scrolled {
  padding-block: 14px;
  background: rgba(6,7,11,.74);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand { display: inline-flex; align-items: center; gap: 14px; }
.brand img { width: 48px; height: 48px; object-fit: contain; filter: drop-shadow(0 14px 24px rgba(240,25,34,.24)); }
.brand strong { display: block; font-size: 19px; letter-spacing: .08em; }
.brand em { display: block; margin-top: 2px; color: rgba(255,255,255,.52); font-style: normal; font-size: 11px; letter-spacing: .23em; }
.site-nav { display: flex; align-items: center; gap: 26px; color: rgba(255,255,255,.78); font-size: 15px; }
.site-nav a { transition: .2s ease; }
.site-nav a:hover { color: #fff; }
.nav-cta { padding: 11px 18px; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; background: rgba(255,255,255,.06); box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
.nav-toggle { display: none; border: 0; background: rgba(255,255,255,.08); color: #fff; border-radius: 12px; width: 42px; height: 42px; font-size: 22px; }

.hero { min-height: 100vh; display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 6vw; padding-top: 152px; }
.eyebrow { margin: 0 0 18px; color: var(--gold-2); letter-spacing: .22em; font-size: 13px; font-weight: 800; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(44px, 6.2vw, 86px); line-height: 1.04; letter-spacing: -.065em; margin-bottom: 28px; max-width: 920px; }
h2 { font-size: clamp(30px, 4.2vw, 54px); line-height: 1.12; letter-spacing: -.045em; margin-bottom: 20px; }
h3 { font-size: 24px; margin-bottom: 14px; letter-spacing: -.02em; }
p { color: var(--muted); line-height: 1.86; font-size: 16px; }
.hero-desc { max-width: 840px; font-size: 19px; }
.hero-actions { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 26px; border-radius: 999px; font-weight: 800; transition: .25s ease; }
.btn-primary { background: linear-gradient(135deg, var(--red), #ff7146); color: #fff; box-shadow: 0 18px 42px rgba(240,25,34,.34); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 24px 54px rgba(240,25,34,.44); }
.btn-ghost { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); color: #fff; box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
.hero-note { display: flex; gap: 12px; margin-top: 46px; flex-wrap: wrap; }
.hero-note span { padding: 13px 16px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.06); border-radius: 999px; color: rgba(255,255,255,.72); }

.hero-visual { min-height: 650px; position: relative; display: grid; place-items: center; }
.system-orbit {
  position: relative;
  width: min(620px, 86vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 48%;
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.09), rgba(255,255,255,.035) 36%, transparent 64%),
    conic-gradient(from 180deg, rgba(240,25,34,.24), rgba(215,180,106,.12), rgba(19,167,199,.2), rgba(240,25,34,.24));
  box-shadow: var(--shadow), inset 0 0 90px rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
}
.system-orbit::before,
.system-orbit::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.12);
}
.system-orbit::before { inset: 8%; animation: spin 22s linear infinite; }
.system-orbit::after { inset: 20%; border-color: rgba(240,25,34,.22); animation: spin 18s linear infinite reverse; }
.core-card {
  position: relative;
  z-index: 3;
  width: 260px;
  min-height: 260px;
  border-radius: 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px;
  text-align: center;
  background: linear-gradient(145deg, rgba(255,255,255,.16), rgba(255,255,255,.06));
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 70px rgba(0,0,0,.28);
}
.core-card img { width: 96px; height: 96px; margin-bottom: 20px; filter: drop-shadow(0 22px 34px rgba(240,25,34,.35)); }
.core-card strong { font-size: 30px; letter-spacing: .04em; }
.core-card span { margin-top: 8px; color: rgba(255,255,255,.62); line-height: 1.55; font-size: 14px; }
.node {
  position: absolute;
  z-index: 4;
  width: 174px;
  padding: 17px 18px;
  border-radius: 22px;
  background: rgba(8,10,16,.72);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 18px 50px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter: blur(18px);
}
.node b { display: block; font-size: 17px; margin-bottom: 6px; }
.node span { display: block; color: rgba(255,255,255,.58); font-size: 13px; }
.node-1 { left: 4%; top: 14%; }
.node-2 { right: 0; top: 22%; }
.node-3 { left: 0; bottom: 18%; }
.node-4 { right: 8%; bottom: 8%; }
.orbit-line { position: absolute; z-index: 1; border-radius: 50%; border: 1px solid rgba(255,255,255,.12); }
.line-a { inset: 3%; transform: rotate(-18deg) scaleX(1.04); border-color: rgba(240,25,34,.2); }
.line-b { inset: 14%; transform: rotate(34deg) scaleX(1.1); border-color: rgba(215,180,106,.18); }
.line-c { inset: 28%; transform: rotate(-54deg) scaleX(1.18); border-color: rgba(19,167,199,.2); }
@keyframes spin { to { transform: rotate(360deg); } }

.brand-strip { display: flex; gap: 18px; overflow: hidden; padding: 22px 7vw; border-block: 1px solid rgba(255,255,255,.09); background: rgba(255,255,255,.04); color: rgba(255,255,255,.42); letter-spacing: .18em; text-transform: uppercase; white-space: nowrap; }
.brand-strip span { min-width: fit-content; }
.section-head { max-width: 950px; margin-bottom: 48px; }
.section-head.center { text-align: center; margin-inline: auto; }
.section-head.center p:not(.eyebrow) { max-width: 840px; margin-inline: auto; }

.system-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 22px; }
.system-card,
.capability-panel,
.fit-card,
.vision-card,
.contact-card,
.method-card {
  border: 1px solid rgba(255,255,255,.12);
  background: linear-gradient(145deg, rgba(255,255,255,.105), rgba(255,255,255,.045));
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 70px rgba(0,0,0,.2);
}
.system-card { position: relative; overflow: hidden; min-height: 340px; padding: 34px; border-radius: var(--radius); }
.system-card::after { content: ""; position: absolute; right: -76px; top: -76px; width: 190px; height: 190px; border-radius: 50%; background: rgba(240,25,34,.18); }
.system-card.featured { grid-row: span 2; background: linear-gradient(145deg, rgba(240,25,34,.3), rgba(215,180,106,.08), rgba(255,255,255,.055)); }
.system-card .index { display: block; color: rgba(255,255,255,.24); font-weight: 900; font-size: 58px; letter-spacing: -.08em; margin-bottom: 26px; }
ul { padding-left: 18px; color: rgba(255,255,255,.65); line-height: 2; }

.method-card { border-radius: 44px; padding: min(6vw, 70px); background: linear-gradient(135deg, rgba(240,25,34,.22), rgba(19,167,199,.12), rgba(255,255,255,.055)); }
.method-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 42px; }
.method-steps div { min-height: 190px; padding: 24px; border-radius: 28px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); }
.method-steps span { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 14px; background: rgba(240,25,34,.18); color: #ff767c; font-weight: 900; margin-bottom: 26px; }
.method-steps strong { display: block; font-size: 22px; margin-bottom: 12px; }
.method-steps em { display: block; font-style: normal; color: rgba(255,255,255,.62); line-height: 1.7; }

.capability-layout { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.capability-panel { padding: 30px; border-radius: 28px; min-height: 320px; }
.capability-panel span { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 15px; background: rgba(240,25,34,.18); color: #ff767c; margin-bottom: 34px; font-weight: 900; }

.fit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.fit-card { min-height: 230px; border-radius: 28px; padding: 28px; display: flex; flex-direction: column; justify-content: space-between; }
.fit-card strong { font-size: 22px; line-height: 1.35; }
.fit-card span { color: rgba(255,255,255,.62); line-height: 1.72; }

.vision-card { border-radius: 44px; padding: min(7vw, 76px); background: linear-gradient(135deg, rgba(240,25,34,.3), rgba(215,180,106,.1), rgba(19,167,199,.13), rgba(255,255,255,.055)); position: relative; overflow: hidden; }
.vision-card::after { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; right: -100px; top: -120px; background: radial-gradient(circle, rgba(255,255,255,.12), transparent 68%); }
.vision-card p { max-width: 910px; font-size: 19px; }

.contact-card { border-radius: 44px; padding: 54px; display: grid; grid-template-columns: 1.16fr .84fr; gap: 40px; align-items: center; background: linear-gradient(145deg, rgba(240,25,34,.2), rgba(255,255,255,.06)); }
.contact-info { display: grid; gap: 15px; justify-items: end; color: rgba(255,255,255,.72); }
.contact-info .domain-link { color: #fff; font-size: 24px; font-weight: 900; border-bottom: 1px solid rgba(255,255,255,.25); }
.email-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 18px;
  border: 1px solid rgba(240,25,34,.32);
  border-radius: 999px;
  background: rgba(240,25,34,.11);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 16px 38px rgba(240,25,34,.12);
  color: rgba(255,255,255,.94);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
}
.email-link::before { content: "✉"; color: #ff5f66; font-size: 16px; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 32px 7vw 46px; color: rgba(255,255,255,.45); border-top: 1px solid rgba(255,255,255,.08); }
.footer-brand { display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.78); }
.footer-brand img { width: 34px; height: 34px; }

@media (max-width: 1180px) {
  .hero, .contact-card { grid-template-columns: 1fr; }
  .hero-visual { min-height: 590px; }
  .capability-layout, .fit-grid, .method-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .system-grid { grid-template-columns: 1fr; }
  .system-card.featured { grid-row: auto; }
}
@media (max-width: 760px) {
  .section-pad { padding: 82px 22px; }
  .site-header { padding: 14px 22px; }
  .brand img { width: 40px; height: 40px; }
  .brand strong { font-size: 17px; }
  .site-nav { position: fixed; top: 72px; left: 16px; right: 16px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px; border-radius: 24px; background: rgba(8,9,13,.94); border: 1px solid rgba(255,255,255,.1); backdrop-filter: blur(18px); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 14px 16px; }
  .nav-toggle { display: block; }
  .hero { padding-top: 118px; }
  h1 { font-size: 42px; }
  .hero-desc { font-size: 17px; }
  .hero-visual { min-height: 520px; }
  .system-orbit { width: min(520px, 96vw); }
  .core-card { width: 210px; min-height: 210px; border-radius: 34px; }
  .core-card img { width: 72px; height: 72px; }
  .core-card strong { font-size: 24px; }
  .node { width: 142px; padding: 14px; }
  .node b { font-size: 15px; }
  .node span { font-size: 12px; }
  .node-1 { left: -2%; top: 8%; }
  .node-2 { right: -3%; top: 20%; }
  .node-3 { left: -3%; bottom: 15%; }
  .node-4 { right: -1%; bottom: 2%; }
  .capability-layout, .fit-grid, .method-steps { grid-template-columns: 1fr; }
  .system-card, .capability-panel, .fit-card { padding: 26px; }
  .method-card, .contact-card { padding: 30px; border-radius: 34px; }
  .contact-info { justify-items: start; }
  .contact-info .domain-link { font-size: 20px; }
  .site-footer { flex-direction: column; align-items: flex-start; }
}

.footer-meta {
  display: grid;
  gap: 8px;
  justify-items: end;
  text-align: right;
}
.footer-meta p { margin: 0; color: rgba(255,255,255,.45); font-size: 14px; line-height: 1.4; }
.footer-meta a {
  color: rgba(255,255,255,.58);
  font-size: 14px;
  letter-spacing: .02em;
  transition: .2s ease;
}
.footer-meta a:hover { color: rgba(255,255,255,.9); }
.audience-grid .fit-card { background: linear-gradient(145deg, rgba(255,255,255,.11), rgba(255,255,255,.045)); }
.capability-section .section-head p:not(.eyebrow) { max-width: 860px; }
@media (max-width: 760px) {
  .footer-meta { justify-items: start; text-align: left; }
}