*,
*::before,
*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "DM Sans", system-ui, sans-serif;
  background: #f4f6f9;
  color: #1e2a3a;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.page-shell { min-height: 100vh; display: flex; flex-direction: column; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  background: #091320;
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: rgba(255,255,255,.62);
  font-size: 12px;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  flex-wrap: wrap;
}
.topbar-badges { display: flex; gap: 16px; flex-wrap: wrap; }
.topbar-badges span { font-family: "IBM Plex Mono", monospace; letter-spacing: .08em; }
.site-nav {
  background: #0d1b2a;
  border-bottom: 1px solid rgba(255,255,255,.08);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 12px; color: white; }
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.14);
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1b4f87, #0d1b2a);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
}
.brand-copy strong { display: block; font-size: 15px; letter-spacing: .05em; }
.brand-copy span {
  display: block;
  font-size: 11px;
  color: rgba(255,255,255,.62);
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav-links a {
  color: rgba(255,255,255,.74);
  font-size: 14px;
  font-weight: 600;
}
.nav-links a:hover,
.nav-links a.active { color: white; }
.hero {
  background:
    radial-gradient(circle at 80% 20%, rgba(74,140,200,.16), transparent 32%),
    linear-gradient(180deg, #122b45 0%, #0f2235 100%);
  color: white;
  padding: 76px 0 72px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr);
  gap: 32px;
  align-items: center;
}
.eyebrow,
.stat-label,
.mini-label,
.card-kicker {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: .14em;
}
.eyebrow {
  font-size: 11px;
  color: #c8922a;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.04;
  margin: 0 0 18px;
}
.hero h1 .accent { color: #4a8cc8; }
.hero p {
  margin: 0 0 22px;
  color: rgba(255,255,255,.78);
  font-size: 16px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0;
}
.btn-primary,
.btn-secondary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 4px;
  font-weight: 700;
  padding: 14px 22px;
  font-size: 14px;
}
.btn-primary { background: #1f5c9e; color: white; }
.btn-secondary { background: #c8922a; color: white; }
.btn-ghost {
  color: rgba(255,255,255,.82);
  border: 1px solid rgba(255,255,255,.2);
}
.hero-panel,
.content-card,
.faq-item,
.download-card,
.path-card,
.proof-card,
.country-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 10px;
}
.hero-panel { padding: 24px; }
.hero-panel h3,
.section h2,
.cta-band h2,
.footer h3 { margin-top: 0; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}
.stat-box {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}
.stat-value {
  display: block;
  color: white;
  font-size: 22px;
  font-weight: 800;
}
.stat-label {
  display: block;
  margin-top: 6px;
  font-size: 10px;
  color: rgba(255,255,255,.66);
}
.section { padding: 72px 0; }
.section.alt { background: white; }
.section.dark {
  background: linear-gradient(180deg, #10263d 0%, #0d1b2e 100%);
  color: white;
}
.section-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.section-header h2 {
  font-size: clamp(26px, 3vw, 40px);
  margin-bottom: 10px;
}
.section-header p,
.section p.muted { color: #5a6878; }
.section.dark .section-header p,
.section.dark p.muted { color: rgba(255,255,255,.72); }
.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 18px;
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.content-card {
  padding: 22px;
  background: white;
  border-color: #e4eaf2;
}
.section.dark .content-card,
.section.dark .download-card,
.section.dark .path-card,
.section.dark .proof-card,
.section.dark .country-card {
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.1);
}
.content-card h3,
.download-card h3,
.path-card h3,
.proof-card h3,
.country-card h3,
.hero-panel h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.content-card ul,
.download-card ul,
.path-card ul,
.proof-card ul,
.hero-panel ul {
  padding-left: 18px;
  margin: 0;
}
.content-card li,
.download-card li,
.path-card li,
.proof-card li,
.hero-panel li { margin: 8px 0; }
.mini-label {
  font-size: 10px;
  color: #4a8cc8;
  margin-bottom: 10px;
}
.download-card,
.path-card,
.proof-card,
.country-card {
  padding: 22px;
}
.faq-list { display: grid; gap: 12px; }
.faq-item {
  padding: 20px;
  background: white;
  border-color: #e4eaf2;
}
.faq-item h3 { margin: 0 0 8px; font-size: 17px; }
.cta-band {
  background: linear-gradient(135deg, #0f2438, #163a5e);
  color: white;
  padding: 68px 0;
  text-align: center;
}
.cta-band p {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto 24px;
  color: rgba(255,255,255,.78);
}
.trust-line {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 22px;
  color: rgba(255,255,255,.64);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.footer {
  margin-top: auto;
  background: #0d1b2e;
  color: white;
  padding-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 22px;
  padding-bottom: 28px;
}
.footer p,
.footer li,
.footer a { color: rgba(255,255,255,.72); }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-note {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 18px 0 24px;
  color: rgba(255,255,255,.52);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
@media (max-width: 1080px) {
  .hero-grid, .grid-4 { grid-template-columns: 1fr 1fr; }
  .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 780px) {
  .site-nav .container,
  .topbar .container { padding-inline: 16px; }
  .hero-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .footer-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-links { gap: 10px; }
}

.yiyi-topbar {
  background: #0a1628;
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: 12px;
  color: rgba(255,255,255,.5);
  display: none;
}
@media (min-width: 768px) {
  .yiyi-topbar { display: block; }
}
.tb-inner {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 36px;
}
.tb-left,
.tb-langs,
.tb-badges {
  display: flex;
  align-items: center;
}
.tb-left {
  gap: 18px;
  overflow: hidden;
}
.tb-langs { gap: 2px; }
.tb-badges { gap: 10px; }
.tb-a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  color: rgba(255,255,255,.58);
  transition: color .18s ease;
}
.tb-a:hover { color: rgba(255,255,255,.86); }
.tb-sep {
  width: 1px;
  height: 12px;
  background: rgba(255,255,255,.12);
  flex: 0 0 auto;
}
.tb-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
}
.tb-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #4a8cc8;
}
.tb-lang {
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 3px;
  border: 0;
  cursor: pointer;
  background: transparent;
  color: rgba(255,255,255,.4);
  font-family: "IBM Plex Mono", monospace;
  transition: all .18s ease;
}
.tb-lang:hover { color: rgba(255,255,255,.7); background: rgba(255,255,255,.05); }
.tb-lang.active { color: #fff; background: rgba(255,255,255,.15); }

.yiyi-nav {
  background: #0d1b2a;
  border-bottom: 1px solid rgba(255,255,255,.08);
  position: sticky;
  top: 0;
  z-index: 50;
  transition: background .3s ease, box-shadow .3s ease;
}
.yiyi-nav.scrolled {
  background: rgba(13,27,42,.98);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 32px rgba(0,0,0,.5);
}
.nav-inner {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 18px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  min-width: max-content;
}
.nav-brand {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .06em;
  color: #fff;
  white-space: nowrap;
  padding-left: 12px;
  border-left: 2px solid #c8922a;
}
.nav-desktop {
  display: none;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
@media (min-width: 1080px) {
  .nav-desktop { display: flex; }
}
.nav-link-simple,
.nd-btn {
  color: rgba(255,255,255,.84);
  font-size: 13px;
  font-weight: 600;
  padding: 14px 10px;
}
.nav-link-simple:hover,
.nd:hover .nd-btn,
.nd-btn:hover { color: #fff; }
.nd { position: relative; }
.nd-btn {
  border: 0;
  background: transparent;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-family: inherit;
}
.gold-btn { color: #d4a24a; }
.gold-btn:hover { color: #edc372; }
.nd-chev { opacity: .6; transition: transform .18s ease; }
.nd:hover .nd-chev { transform: translateY(1px) rotate(180deg); }
.drop-panel {
  position: absolute;
  left: 0;
  top: calc(100% + 6px);
  min-width: 250px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .18s ease;
  z-index: 60;
}
.nd:hover .drop-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.drop-box {
  background: #10263d;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  box-shadow: 0 24px 64px rgba(4,10,18,.46);
  overflow: hidden;
}
.drop-gold-bar,
.drop-blue-bar {
  height: 3px;
  background: linear-gradient(90deg, #c8922a, #f0be62);
}
.drop-blue-bar { background: linear-gradient(90deg, #4a8cc8, #82b7eb); }
.drop-body { padding: 12px; }
.core-dl,
.dl {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: rgba(255,255,255,.82);
  transition: background .18s ease, color .18s ease;
}
.core-dl:hover,
.dl:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
}
.cdl-icon,
.dl-icon {
  width: 18px;
  text-align: center;
  font-size: 14px;
  color: #c8922a;
  flex: 0 0 auto;
}
.cdl-name,
.dl-label {
  font-size: 13px;
  font-weight: 600;
}
.cdl-badge,
.dl-badge {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #d4a24a;
  background: rgba(200,146,42,.12);
  border: 1px solid rgba(200,146,42,.22);
  padding: 3px 6px;
  border-radius: 999px;
}
.cdl-sub {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  color: rgba(255,255,255,.45);
}
.mega-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
}
.mega-col {
  padding: 18px 16px;
  border-right: 1px solid rgba(255,255,255,.06);
  min-width: 170px;
}
.mega-col:last-child { border-right: 0; display: flex; flex-direction: column; }
.mega-head {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #c8922a;
  margin-bottom: 10px;
}
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
}
.two-col-main { padding: 18px 16px; }
.two-col-side {
  border-left: 1px solid rgba(255,255,255,.06);
  padding: 18px 16px;
  display: flex;
}
.eeat-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.eeat-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #8fa8c0;
}
.eeat-title {
  margin: 0;
  color: #fff;
  font-size: 15px;
  line-height: 1.45;
  font-weight: 700;
}
.eeat-link {
  color: #4a8cc8;
  font-size: 13px;
  font-weight: 700;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-nav-quote {
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 4px;
  background: #1f5c9e;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}
@media (min-width: 1080px) {
  .btn-nav-quote { display: inline-flex; }
}
.mob-toggle {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
@media (min-width: 1080px) {
  .mob-toggle { display: none; }
}
.mob-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: #fff;
  transition: transform .18s ease, opacity .18s ease;
}
.mob-menu {
  display: none;
  border-top: 1px solid rgba(255,255,255,.08);
  background: #0f2235;
}
.mob-menu.open { display: block; }
@media (min-width: 1080px) {
  .mob-menu { display: none !important; }
}
.mob-inner {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 12px 0 18px;
}
.mob-link,
.mob-cta {
  display: block;
  padding: 12px 0;
  color: rgba(255,255,255,.78);
  font-size: 14px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.mob-cta {
  margin-top: 12px;
  text-align: center;
  border: 0;
  border-radius: 4px;
  color: #fff;
  background: #1f5c9e;
}

.trust-strip {
  background: #1c3a5e;
  border-top: 1px solid #2a4f78;
}
.trust-strip-inner {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.ts-item { color: rgba(255,255,255,.72); }
.ts-check {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.yiyi-footer {
  margin-top: auto;
  background: #0d1b2e;
  color: #fff;
  padding: 48px 0 24px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.foot-logo-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 18px;
}
.foot-brand {
  display: block;
  margin-bottom: 5px;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .08em;
}
.foot-about {
  color: rgba(255,255,255,.7);
  font-size: 14px;
  line-height: 1.7;
}
.foot-info-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}
.foot-info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #8fa8c0;
  font-size: 13px;
}
.fi-icon {
  width: 14px;
  height: 14px;
  color: #4a8cc8;
  flex: 0 0 auto;
}
.foot-col-head {
  margin-bottom: 16px;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.foot-links,
.foot-contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.foot-link,
.foot-contact-a {
  color: #8fa8c0;
  font-size: 13px;
  transition: color .18s ease;
}
.foot-link:hover,
.foot-contact-a:hover { color: #fff; }
.foot-link.gold { color: #d4a24a; }
.foot-contact-a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.fca-icon {
  width: 14px;
  height: 14px;
  color: #4a8cc8;
  flex: 0 0 auto;
}
.fca-icon.green { color: #31c26b; }
.foot-btn-p,
.foot-btn-o {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  margin-top: 12px;
}
.foot-btn-p {
  background: #1f5c9e;
  color: #fff;
}
.foot-btn-o {
  margin-left: 8px;
  color: rgba(255,255,255,.86);
  border: 1px solid rgba(255,255,255,.18);
}
.foot-bottom {
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.foot-copy {
  color: rgba(255,255,255,.52);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}
@media (max-width: 1080px) {
  .mega-grid,
  .two-col,
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .two-col-side { border-left: 0; border-top: 1px solid rgba(255,255,255,.06); }
}
@media (max-width: 780px) {
  .tb-inner,
  .nav-inner,
  .mob-inner,
  .trust-strip-inner { width: calc(100% - 32px); }
  .tb-left { gap: 12px; }
  .tb-badges,
  .tb-sep:nth-of-type(3),
  .tb-sep:nth-of-type(4) { display: none; }
  .mega-grid,
  .two-col,
  .foot-grid { grid-template-columns: 1fr; }
  .foot-btn-o { margin-left: 0; }
  .foot-bottom { flex-direction: column; }
}