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

:root {
  --c-bg: #0A1F14;
  --c-bg-alt: #143A2B;
  --c-green: #2F6D4F;
  --c-gold: #D4AF37;
  --c-gold-bright: #F0D98C;
  --c-text: #F2F5F3;
  --c-muted: #A8B5AE;
  --c-ink: #1F1F1F;
  --font-display: "Archivo Black", "Arial Black", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Heiti SC", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Heiti SC", sans-serif;
  --font-mono: "Roboto Mono", "SFMono-Regular", "Cascadia Mono", "Consolas", "Liberation Mono", monospace;
  --header-h: 74px;
  --space: 24px;
  --container: 1360px;
}

html {
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
  flex: 1 0 auto;
}

#main-content {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--c-text);
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  padding: 0;
}

a {
  color: var(--c-gold);
  text-decoration: none;
}

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

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

::selection {
  background: var(--c-gold);
  color: var(--c-ink);
}

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

.skip-link {
  position: fixed;
  top: 0;
  left: 24px;
  z-index: 300;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-ink);
  background: var(--c-gold);
  transform: translateY(-120%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  color: var(--c-ink);
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-top: 2px solid var(--c-gold);
  border-bottom: 1px solid rgba(168, 181, 174, 0.16);
  background: rgba(10, 31, 20, 0.94);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: var(--container);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 0 32px;
}

.brand {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 12px;
  color: var(--c-text);
  text-decoration: none;
}

.brand:hover {
  color: var(--c-text);
}

.brand-window {
  position: relative;
  display: block;
  flex: none;
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--c-gold);
  transition: background-color 0.2s ease;
}

.brand-window::before,
.brand-window::after {
  content: "";
  position: absolute;
  background: var(--c-gold);
}

.brand-window::before {
  top: 50%;
  left: 4px;
  right: 4px;
  height: 1px;
  transform: translateY(-50%);
}

.brand-window::after {
  left: 50%;
  top: 4px;
  bottom: 4px;
  width: 1px;
  transform: translateX(-50%);
}

.brand:hover .brand-window {
  background: rgba(212, 175, 55, 0.1);
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--c-text);
}

.brand-tag {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.header-rule {
  position: relative;
  flex: 1 1 80px;
  align-self: center;
  height: 1px;
  min-width: 40px;
  background: linear-gradient(90deg, var(--c-gold) 0%, var(--c-green) 55%, rgba(168, 181, 174, 0.2) 100%);
}

.header-rule::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  background: var(--c-gold);
  transform: translate(-50%, -50%) rotate(45deg);
}

.site-nav {
  align-self: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav-item {
  margin: 0;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-text);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  background: var(--c-gold);
  transform: scaleX(0);
  transition: transform 0.25s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--c-gold-bright);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--c-gold);
}

.nav-link[aria-current="page"]::after {
  background: var(--c-gold-bright);
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  padding: 10px 12px;
  background: transparent;
  border: 1px solid rgba(212, 175, 55, 0.55);
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(212, 175, 55, 0.08);
  border-color: var(--c-gold-bright);
}

.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-gold);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  width: 0;
  height: 3px;
  background: var(--c-gold);
  pointer-events: none;
}

.site-footer {
  margin-top: auto;
  position: relative;
  border-top: 1px solid var(--c-gold);
  background: var(--c-bg-alt);
}

.site-footer::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--c-gold) 0%, var(--c-gold) 55%, var(--c-green) 100%);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr;
  gap: 48px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 32px 48px;
}

.brand--footer .brand-window {
  width: 30px;
  height: 30px;
}

.brand--footer .brand-name {
  font-size: 20px;
}

.brand--footer .brand-tag {
  font-size: 8px;
}

.footer-brand-col .brand {
  margin-bottom: 18px;
}

.footer-claim {
  max-width: 30ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

.footer-col-title {
  position: relative;
  margin-bottom: 18px;
  padding-bottom: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.footer-col-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--c-gold);
}

.footer-link-list,
.footer-contact-list {
  display: grid;
  gap: 10px;
  list-style: none;
}

.footer-link-list a {
  font-size: 14px;
  color: var(--c-text);
  opacity: 0.85;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.footer-link-list a:hover {
  color: var(--c-gold-bright);
  opacity: 1;
}

.footer-contact-list li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-muted);
  font-variant-numeric: tabular-nums;
}

.footer-bottom {
  border-top: 1px solid rgba(168, 181, 174, 0.16);
  background: rgba(10, 31, 20, 0.55);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 32px;
}

.footer-copyright {
  font-size: 13px;
  color: var(--c-muted);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  list-style: none;
}

.footer-legal a {
  font-size: 13px;
  color: var(--c-muted);
}

.footer-legal a:hover {
  color: var(--c-gold-bright);
}

.footer-icp {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(168, 181, 174, 0.72);
}

.container {
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

.section {
  padding-block: 80px;
}

.section--tighter {
  padding-block: 48px;
}

.section--alt {
  background: var(--c-bg-alt);
}

.section--deep {
  background: var(--c-ink);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px 48px;
  align-items: end;
  margin-bottom: 40px;
}

.section-kicker {
  display: inline-block;
  position: relative;
  margin-bottom: 14px;
  padding-left: 40px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.section-kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 28px;
  height: 1px;
  background: var(--c-gold);
}

.section-title {
  font-size: clamp(30px, 5vw, 52px);
}

.section-desc {
  max-width: 52ch;
  font-size: 16px;
  color: var(--c-muted);
}

.grid {
  display: grid;
  gap: 24px;
}

.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));
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border: 1px solid var(--c-gold);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary:hover {
  background: var(--c-gold-bright);
  border-color: var(--c-gold-bright);
  color: var(--c-ink);
}

.btn-ghost {
  background: transparent;
  color: var(--c-gold);
}

.btn-ghost:hover {
  background: rgba(212, 175, 55, 0.12);
  color: var(--c-gold-bright);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-size: 13px;
  color: var(--c-muted);
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--c-green);
}

.breadcrumbs a {
  color: var(--c-muted);
}

.breadcrumbs a:hover {
  color: var(--c-gold-bright);
}

.breadcrumbs [aria-current="page"] {
  color: var(--c-gold);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid rgba(47, 109, 79, 0.7);
  background: rgba(47, 109, 79, 0.12);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
}

.tag--gold {
  border-color: rgba(212, 175, 55, 0.55);
  background: rgba(212, 175, 55, 0.08);
  color: var(--c-gold);
}

.card {
  position: relative;
  padding: 28px;
  background: var(--c-bg-alt);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-gold) 0%, var(--c-green) 70%);
  opacity: 0.8;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-green);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-align: left;
  text-transform: uppercase;
  color: var(--c-muted);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(168, 181, 174, 0.14);
  font-variant-numeric: tabular-nums;
}

.data-table tr:hover td {
  background: rgba(212, 175, 55, 0.06);
}

.data-table .is-highlight {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-gold);
}

.stat {
  display: block;
  padding: 24px 26px;
  border-left: 2px solid var(--c-gold);
  background: rgba(20, 58, 43, 0.55);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.image-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-bg-alt);
}

.image-frame::before {
  content: "";
  display: block;
  width: 100%;
  padding-top: 62.5%;
}

.image-frame--wide::before {
  padding-top: 42.86%;
}

.image-frame--square::before {
  padding-top: 100%;
}

.image-frame--portrait::before {
  padding-top: 125%;
}

.image-frame img,
.image-frame [data-fill] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bg-grid {
  background-image: linear-gradient(rgba(212, 175, 55, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(212, 175, 55, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

.text-gold {
  color: var(--c-gold);
}

.text-muted {
  color: var(--c-muted);
}

.mono {
  font-family: var(--font-mono);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 960px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 12px 16px;
    min-height: 64px;
    padding: 0 20px;
  }

  .header-rule {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    order: 3;
    flex: 0 0 100%;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    background: var(--c-bg);
    transition: max-height 0.28s ease;
  }

  .site-nav[data-open] {
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    border-bottom: 1px solid rgba(212, 175, 55, 0.18);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 4px 0 14px;
  }

  .nav-item + .nav-item {
    border-top: 1px solid rgba(168, 181, 174, 0.12);
  }

  .nav-link {
    display: block;
    padding: 14px 2px;
    font-size: 15px;
  }

  .nav-link::after {
    display: none;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 48px 24px 40px;
  }

  .footer-brand-col {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, var(--container));
  }

  .section {
    padding-block: 56px;
  }

  .section-head {
    grid-template-columns: 1fr;
    align-items: start;
    margin-bottom: 28px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    padding: 40px 20px 32px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 20px;
  }

  .footer-legal {
    gap: 12px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}