:root {
  --blue: #1E5B94;
  --blue-deep: #123B5E;
  --white: #FFFFFF;
  --cloud: #F8F9FA;
  --gold: #D4AF37;
  --gold-dark: #B8860B;
  --gray: #6C757D;
  --ink: #212529;
  --line: #E3F2FD;
  --nav-width: 280px;
  --shadow: 0 1px 2px rgba(18,59,94,.06), 0 12px 32px rgba(18,59,94,.08);
  --font-body: "Noto Sans SC", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-data: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background-color: var(--white);
  line-height: 1.7;
}

img,
svg,
video {
  max-width: 100%;
  display: block;
  height: auto;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--gold-dark);
}

ul,
ol {
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0;
  left: var(--nav-width);
  z-index: 999;
  transform: translateY(-200%);
  background: var(--gold);
  color: var(--blue-deep);
  font-weight: 700;
  padding: .75rem 1.25rem;
  text-decoration: none;
  transition: transform .15s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 50;
}

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--nav-width);
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 2.5rem 0 1.5rem;
  background:
    repeating-linear-gradient(180deg, rgba(255,255,255,.035) 0 1px, transparent 1px 72px),
    linear-gradient(160deg, rgba(18,59,94,.98), rgba(30,91,148,.92));
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-right: 1px solid rgba(227,242,253,.2);
  box-shadow: inset -1px 0 0 rgba(212,175,55,.25), 8px 0 40px rgba(18,59,94,.1);
  z-index: 100;
  transform: translateX(-103%);
  transition: transform .2s ease-out;
}

.site-nav:focus {
  outline: none;
}

.site-nav:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -4px;
}

.site-nav[data-open] {
  transform: translateX(0);
}

.site-nav__brand {
  padding: 0 2rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.site-nav__brand::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), rgba(212,175,55,0));
  margin-top: 1rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: .875rem;
  text-decoration: none;
  color: #fff;
}

.site-brand:hover {
  color: #fff;
}

.site-brand__mark {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--white);
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.site-brand__text strong {
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: .1em;
}

.site-brand__text em {
  font-style: normal;
  font-size: .75rem;
  color: rgba(255,255,255,.6);
  letter-spacing: .25em;
  text-transform: uppercase;
}

.site-nav__list {
  margin: 1.25rem 0 0;
  counter-reset: navIdx;
}

.site-nav__list li {
  counter-increment: navIdx;
}

.site-nav__list a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding: .8rem 1.5rem .8rem 2rem;
  color: rgba(255,255,255,.76);
  text-decoration: none;
  font-size: .9375rem;
  letter-spacing: .04em;
  border-left: 3px solid transparent;
  transition: background .2s, color .2s, border-color .2s, padding-left .2s;
}

.site-nav__list a::before {
  content: counter(navIdx, decimal-leading-zero);
  font-family: var(--font-data);
  font-size: .6875rem;
  color: var(--gold);
  letter-spacing: .02em;
  opacity: .75;
  min-width: 1.6em;
}

.site-nav__list a:hover,
.site-nav__list a[aria-current="page"] {
  background: rgba(30,91,148,.55);
  color: #fff;
  border-left-color: var(--gold);
  padding-left: 2.375rem;
}

.site-nav__meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-top: 1px solid rgba(255,255,255,.12);
  font-family: var(--font-data);
  font-size: .6875rem;
  letter-spacing: .12em;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
}

.site-nav__status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.site-nav__status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: livePulse 2s ease-out infinite;
}

.site-nav__version {
  color: rgba(255,255,255,.7);
  font-weight: 700;
}

@keyframes livePulse {
  0% {
    box-shadow: 0 0 0 0 rgba(212,175,55,.55);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(212,175,55,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(212,175,55,0);
  }
}

.nav-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 200;
  align-items: center;
  gap: .5rem;
  padding: .5rem .875rem;
  background: rgba(18,59,94,.94);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 2px;
  color: #fff;
  font-size: .8125rem;
  letter-spacing: .08em;
  box-shadow: 0 8px 24px rgba(18,59,94,.2);
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform .2s, opacity .2s;
}

.nav-toggle__text {
  font-weight: 600;
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

@media (min-width: 961px) {
  .site-nav {
    transform: none;
  }

  #main-content {
    margin-left: var(--nav-width);
  }
}

@media (max-width: 960px) {
  .skip-link {
    left: 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  body.has-nav-open {
    overflow: hidden;
  }

  body.has-nav-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(18,59,94,.45);
    z-index: 90;
  }

  #main-content {
    margin-left: 0;
    padding-top: 4.5rem;
  }
}

.site-footer {
  background:
    repeating-linear-gradient(180deg, rgba(255,255,255,.03) 0 1px, transparent 1px 56px),
    linear-gradient(180deg, var(--blue-deep) 0%, #0d2b45 100%);
  color: rgba(255,255,255,.78);
  border-top: 3px solid var(--gold);
  font-size: .9375rem;
  margin-left: var(--nav-width);
}

@media (max-width: 960px) {
  .site-footer {
    margin-left: 0;
  }
}

.site-footer__ornament {
  height: 12px;
  background:
    repeating-linear-gradient(90deg, transparent 0 26px, rgba(212,175,55,.4) 26px 32px),
    repeating-linear-gradient(45deg, transparent 0 10px, rgba(255,255,255,.14) 10px 14px, transparent 14px 26px);
}

.site-footer__container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 4rem max(1.5rem, env(safe-area-inset-left)) 2.75rem;
  display: grid;
  grid-template-columns: 2.2fr 1fr 1.2fr 1.6fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}

@media (max-width: 960px) {
  .site-footer__container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .site-footer__container {
    grid-template-columns: 1fr;
  }
}

.site-footer__logo {
  font-size: 1.75rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: .08em;
  margin: 0;
}

.site-footer__slogan {
  color: var(--gold);
  font-weight: 700;
  margin: .125rem 0 1.25rem;
  letter-spacing: .2em;
}

.site-footer__trust {
  font-size: .875rem;
  line-height: 1.8;
  color: rgba(255,255,255,.62);
  max-width: 34ch;
}

.site-footer__heading {
  font-size: .8125rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin: 0 0 1.25rem;
  padding-bottom: .5rem;
  display: inline-block;
  border-bottom: 2px solid rgba(212,175,55,.5);
}

.site-footer__list {
  padding: 0;
  margin: 0;
}

.site-footer__list li {
  margin: .55rem 0;
}

.site-footer__list a {
  color: rgba(255,255,255,.72);
  text-decoration: none;
  transition: color .2s, padding-left .2s;
}

.site-footer__list a:hover {
  color: var(--gold);
  padding-left: 4px;
}

.site-footer__contact {
  font-size: .875rem;
  line-height: 1.8;
}

.site-footer__contact .site-footer__heading {
  margin-bottom: .75rem;
}

.site-footer__contact .site-footer__list li {
  color: rgba(255,255,255,.65);
}

.site-footer__bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem max(1.5rem, env(safe-area-inset-left));
  border-top: 1px solid rgba(255,255,255,.12);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 2rem;
  font-family: var(--font-data);
  font-size: .8125rem;
  color: rgba(255,255,255,.5);
}

.site-footer__bottom p {
  margin: 0;
}

.site-footer__bottom a {
  color: rgba(255,255,255,.65);
  text-decoration: none;
}

.site-footer__bottom a:hover {
  color: var(--gold);
}

@media (max-width: 960px) {
  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

#main-content {
  outline: none;
  scroll-margin-top: 2rem;
  min-height: 60vh;
}

#main-content:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -4px;
}

.container {
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
}

.breadcrumb {
  margin: 2rem 0 1rem;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  padding: 0;
  margin: 0;
  font-size: .875rem;
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: .75rem;
  color: var(--gray);
  font-family: var(--font-data);
}

.breadcrumb__link {
  color: var(--blue);
  text-decoration: none;
}

.breadcrumb__link:hover {
  color: var(--gold-dark);
}

.breadcrumb__item[aria-current="page"] {
  color: var(--gray);
  font-family: var(--font-data);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  background: var(--blue);
  color: var(--white);
  font-weight: 700;
  font-size: .9375rem;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid var(--blue);
  border-radius: 2px;
  box-shadow: 0 2px 8px rgba(30,91,148,.18);
  transition: background .2s, border-color .2s, color .2s, transform .2s, box-shadow .2s;
}

.btn:hover {
  background: var(--blue-deep);
  border-color: var(--blue-deep);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(18,59,94,.22);
}

.btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.btn--gold:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  color: var(--white);
}

.btn--ghost {
  background: transparent;
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(30,91,148,.08);
}

.section-heading {
  border-left: 4px solid var(--gold);
  padding-left: 1rem;
  margin: 2.5rem 0 1.5rem;
  color: var(--blue-deep);
  font-weight: 900;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.3;
}

.section-heading__en {
  display: block;
  font-family: var(--font-data);
  font-size: .8125rem;
  font-weight: 400;
  letter-spacing: .18em;
  color: var(--gray);
  text-transform: uppercase;
  margin-top: .25rem;
}

.data-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  border-radius: 2px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.data-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(18,59,94,.12);
  border-color: rgba(212,175,55,.5);
}

.data-card--gold {
  border-top-color: var(--gold);
}

.data-card__value {
  font-family: var(--font-data);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  color: var(--blue-deep);
  line-height: 1.25;
  letter-spacing: -.02em;
}

.data-card--gold .data-card__value {
  color: var(--gold-dark);
}

.data-card__label {
  margin-top: .5rem;
  font-size: .8125rem;
  color: var(--gray);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .25rem .75rem;
  font-family: var(--font-data);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--blue-deep);
  background: var(--cloud);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: livePulse 2s ease-out infinite;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 1.5rem;
}

.figure-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background:
    repeating-linear-gradient(45deg, rgba(30,91,148,.06) 0 8px, transparent 8px 16px),
    linear-gradient(145deg, var(--cloud), #eef5fb);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.figure-frame::after {
  content: attr(data-caption);
  position: absolute;
  inset: auto 0 0 0;
  padding: .5rem .875rem;
  font-family: var(--font-data);
  font-size: .75rem;
  color: var(--blue-deep);
  background: linear-gradient(0deg, rgba(255,255,255,.92), rgba(255,255,255,.55) 70%, transparent);
  letter-spacing: .04em;
}

.progress-top {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  z-index: 300;
  pointer-events: none;
}

.progress-top::after {
  content: "";
  display: block;
  width: var(--progress, 0%);
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--gold));
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}