:root {
  --bg: #f7faff;
  --ink: #0d1c44;
  --ink-soft: #43557d;
  --muted: #6a7895;
  --blue: #255fff;
  --blue-deep: #1538ad;
  --gold: #d6ac5c;
  --green: #30b18a;
  --panel: rgba(255,255,255,.86);
  --line: rgba(18, 42, 102, .08);
  --shadow: 0 22px 60px rgba(18, 47, 128, .10);
  --radius: 28px;
  --container: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 12%, rgba(37, 95, 255, .12), transparent 26%),
    radial-gradient(circle at 82% 4%, rgba(214, 172, 92, .13), transparent 25%),
    linear-gradient(180deg, #fbfdff 0%, #f1f6ff 100%);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1rem; color: var(--ink-soft); }
h1,h2,h3 { margin: 0 0 1rem; line-height: 1.05; letter-spacing: -0.045em; }
h1 { font-size: clamp(3rem, 6vw, 5.55rem); }
h2 { font-size: clamp(2rem, 4.2vw, 3.35rem); }
h3 { font-size: 1.18rem; letter-spacing: -0.02em; }
.container { width: min(var(--container), calc(100% - 2rem)); margin-inline: auto; }
.site-shell { overflow: clip; }
.eyebrow { color: var(--blue); font-weight: 800; letter-spacing: .1em; text-transform: uppercase; font-size: .78rem; margin-bottom: 1rem; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .92rem 1.28rem; border-radius: 14px; font-weight: 700;
  border: 1px solid transparent; transition: .2s ease;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(25, 67, 185, .14); }
.button.primary { background: linear-gradient(135deg, var(--blue-deep), var(--blue)); color: #fff; }
.button.secondary { background: rgba(255,255,255,.85); border-color: var(--line); color: var(--ink); }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(250,252,255,.82); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.nav-wrap { min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .8rem; }
.brand-mark { color: var(--blue-deep); display: grid; place-items: center; }
.brand-text { display: flex; flex-direction: column; }
.brand-text strong { letter-spacing: .18em; font-size: 1.08rem; }
.brand-text small { color: var(--muted); font-size: .74rem; }
.primary-nav { display: flex; align-items: center; gap: 1.25rem; }
.primary-nav a { color: var(--ink-soft); font-weight: 600; }
.primary-nav a:hover { color: var(--ink); }
.nav-button { margin-left: .2rem; }
.nav-toggle { display: none; width: 48px; height: 48px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.9); }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 4px auto; border-radius: 999px; }

.hero-section { padding: 4.5rem 0 2rem; }
.hero-grid { display: grid; grid-template-columns: 1.04fr 1fr; gap: 2.5rem; align-items: center; }
.hero-lede { font-size: 1.18rem; max-width: 700px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin: 2rem 0 1.4rem; }
.hero-proof { width: fit-content; max-width: 100%; background: rgba(255,255,255,.82); border: 1px solid var(--line); border-radius: 20px; padding: 1rem 1.15rem; box-shadow: var(--shadow); }
.hero-proof span { color: var(--muted); display: block; font-size: .9rem; }
.hero-proof strong { display: block; margin-top: .15rem; font-size: 1.05rem; }
.hero-proof p { margin: .3rem 0 0; font-size: .92rem; }
.hero-visual, .architecture-image, .patent-visual, .article-hero-visual {
  background: rgba(255,255,255,.82); border: 1px solid var(--line); border-radius: 34px; padding: .85rem; box-shadow: var(--shadow); overflow: hidden;
}
.hero-visual img, .architecture-image img, .patent-visual img, .article-hero-visual img { border-radius: 26px; }

.trust-bar { padding: 1rem 0 0; }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.trust-grid div { background: rgba(255,255,255,.84); border: 1px solid var(--line); border-radius: 22px; padding: 1.1rem 1.2rem; box-shadow: var(--shadow); }
.trust-grid strong { display: block; margin-bottom: .2rem; }
.trust-grid span { color: var(--ink-soft); font-size: .96rem; }

.section { padding: 5.3rem 0; }
.split-grid, .patent-grid, .founder-grid, .architecture-grid, .article-hero-grid, .article-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
.section-center { max-width: 860px; text-align: center; }
.strategic-card, .quote-card, .patent-card, .contact-card, .faq-card, .value-card, .article-card, .rail-card, .article-content, .timeline article {
  background: rgba(255,255,255,.86); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem; box-shadow: var(--shadow);
}
.strategic-card h3 { font-size: 1.65rem; }
.check-list { margin: 1rem 0 0; padding: 0; list-style: none; display: grid; gap: .75rem; }
.check-list li { color: var(--ink-soft); position: relative; padding-left: 1.7rem; }
.check-list li::before { content: "✓"; color: var(--green); font-weight: 900; position: absolute; left: 0; }
.value-cards, .faq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
.value-card span, .article-card span, .feature-card span {
  width: 52px; height: 52px; border-radius: 16px; background: #eef4ff; color: var(--blue-deep); display: grid; place-items: center; font-weight: 900; margin-bottom: 1rem;
}
.architecture-head { max-width: 900px; text-align: center; }
.architecture-grid { grid-template-columns: 1.1fr .9fr; align-items: start; margin-top: 2.2rem; }
.feature-stack { display: grid; gap: 1rem; }
.feature-card { display: grid; grid-template-columns: 66px 1fr; gap: 1rem; align-items: start; background: rgba(255,255,255,.86); border: 1px solid var(--line); border-radius: 24px; padding: 1.25rem; box-shadow: var(--shadow); }
.feature-card p { margin: 0; }
.quote-mark { color: var(--blue); font-size: 4rem; line-height: .8; margin: 0 0 .7rem; }
blockquote { margin: 0; font-size: 1.45rem; line-height: 1.45; color: var(--ink); letter-spacing: -.02em; }
.tag-list { display: flex; flex-wrap: wrap; gap: .65rem; margin: 1.2rem 0 1.5rem; }
.tag-list span { padding: .55rem .82rem; background: rgba(238,244,255,.85); border: 1px solid rgba(21,56,173,.11); border-radius: 999px; font-size: .92rem; color: var(--ink); }
.article-card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 2rem; }
.article-card { display: block; min-height: 270px; transition: .2s ease; }
.article-card:hover { transform: translateY(-3px); }
.article-card h3 { font-size: 1.25rem; }
.article-card p { margin-bottom: 0; }
.timeline { display: grid; gap: 1rem; }
.timeline span { color: var(--blue); font-weight: 800; font-size: .9rem; }
.timeline p { margin: 0; }
.faq-grid { grid-template-columns: repeat(2, 1fr); }
.contact-card { display: flex; justify-content: space-between; gap: 2rem; align-items: center; }
.contact-actions { display: flex; flex-direction: column; gap: .85rem; min-width: 240px; }

.article-hero { padding: 4rem 0 2rem; }
.article-hero-grid.simple { grid-template-columns: 1fr; max-width: 900px; }
.article-meta { display: flex; flex-wrap: wrap; gap: .65rem; margin: 1rem 0; }
.article-meta span { padding: .4rem .7rem; background: #edf4ff; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); font-size: .9rem; }
.article-layout { grid-template-columns: 280px minmax(0,1fr); align-items: start; }
.article-rail { position: sticky; top: 108px; }
.rail-card ul { margin: 0; padding-left: 1.1rem; color: var(--ink-soft); display: grid; gap: .55rem; }
.article-content { padding: 2.1rem; }
.article-content h2 { margin-top: 2.1rem; font-size: 2rem; }
.article-lead { font-size: 1.18rem; color: var(--ink); }
.article-content blockquote { background: #edf4ff; border-left: 4px solid var(--blue); border-radius: 0 18px 18px 0; padding: 1rem 1.2rem; margin: 1.6rem 0; font-size: 1.22rem; }
.article-disclaimer { margin-top: 2rem; padding: 1rem 1.1rem; background: #fff8e8; border: 1px solid rgba(214,172,92,.28); border-radius: 18px; color: #6b5520; }

.site-footer { padding: 2rem 0 3rem; border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; gap: 2rem; align-items: center; }
.footer-inner p { margin: .25rem 0 0; max-width: 660px; }
.footer-links { display: flex; gap: 1.1rem; flex-wrap: wrap; color: var(--ink-soft); font-weight: 600; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .08s; } .delay-2 { transition-delay: .16s; } .delay-3 { transition-delay: .24s; } .delay-4 { transition-delay: .32s; }

@media (max-width: 1100px) {
  .hero-grid, .split-grid, .patent-grid, .founder-grid, .architecture-grid, .article-hero-grid, .article-layout { grid-template-columns: 1fr; }
  .article-card-grid { grid-template-columns: repeat(2, 1fr); }
  .value-cards, .trust-grid { grid-template-columns: 1fr; }
  .article-rail { position: static; }
  .contact-card { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 860px) {
  .nav-toggle { display: inline-block; }
  .primary-nav { position: absolute; left: 1rem; right: 1rem; top: calc(100% + .55rem); display: none; flex-direction: column; align-items: stretch; gap: .2rem; background: rgba(255,255,255,.96); border: 1px solid var(--line); border-radius: 22px; padding: .9rem; box-shadow: var(--shadow); }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: .75rem .6rem; }
  .nav-button { margin-left: 0; }
}
@media (max-width: 680px) {
  .container { width: min(var(--container), calc(100% - 1.25rem)); }
  h1 { font-size: 2.7rem; }
  h2 { font-size: 1.95rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .article-card-grid, .faq-grid { grid-template-columns: 1fr; }
  .feature-card { grid-template-columns: 1fr; }
  .strategic-card, .quote-card, .patent-card, .contact-card, .faq-card, .value-card, .article-card, .rail-card, .article-content, .timeline article { padding: 1.35rem; }
}


.mechanism-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}
.mechanism-card {
  background: rgba(255,255,255,.88);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.45rem;
  box-shadow: var(--shadow);
  min-height: 260px;
}
.mechanism-card span {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: #eef4ff;
  color: var(--blue-deep);
  display: grid;
  place-items: center;
  font-weight: 900;
  margin-bottom: 1rem;
}
.mechanism-card p { margin-bottom: 0; }
.delay-4 { transition-delay: .32s; }
@media (max-width: 1100px) {
  .mechanism-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .mechanism-grid { grid-template-columns: 1fr; }
  .mechanism-card { min-height: 0; }
}


.partner-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}
.partner-card {
  background: rgba(255,255,255,.88);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.45rem;
  box-shadow: var(--shadow);
  min-height: 230px;
}
.partner-card p { margin-bottom: 0; }
@media (max-width: 1100px) {
  .partner-card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .partner-card-grid { grid-template-columns: 1fr; }
  .partner-card { min-height: 0; }
}