:root {
  --color-deep-blue: #0a1628;
  --color-navy: #10233f;
  --color-accent-gold: #d4af37;
  --color-bright-gold: #f5d67b;
  --color-silver: #aeb6c2;
  --color-light: #f5f7fa;
  --color-ink: #1a2433;
  --color-deep-teal: #0b3b3c;
  --color-wine: #5e2a3d;
  --color-indigo: #2b2a5e;
  --font-title: "DIN Alternate", "Noto Sans SC", sans-serif;
  --font-body: "Microsoft YaHei", "PingFang SC", sans-serif;
  --header-height: 72px;
  --content-width: 1280px;
  --gutter: 1.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.25s var(--ease);
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-silver);
  background-color: var(--color-deep-blue);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-title);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-light);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-bright-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

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

.main-content {
  min-height: 60vh;
}

.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 150;
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-bright-gold));
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.5);
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 300;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink);
  background: var(--color-accent-gold);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-navy);
  border-bottom: 1px solid rgba(212, 175, 55, 0.22);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.site-header__inner {
  max-width: var(--content-width);
  min-height: var(--header-height);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.site-header__brand-mark {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-bright-gold));
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  box-shadow: 0 0 14px rgba(212, 175, 55, 0.35);
}

.site-header__brand-text {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 1.375rem;
  letter-spacing: 0.08em;
  color: var(--color-light);
  text-transform: uppercase;
}

.site-header__status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.3rem 0.8rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--color-silver);
  background: rgba(212, 175, 55, 0.06);
  border: 1px solid rgba(212, 175, 55, 0.25);
  white-space: nowrap;
}

.site-header__status-text {
  line-height: 1.2;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-bright-gold);
  animation: status-pulse 2.4s infinite;
}

@keyframes status-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.5);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(212, 175, 55, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(212, 175, 55, 0);
  }
}

.site-nav {
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.site-nav__item {
  display: inline-flex;
}

.site-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.6rem 0.7rem;
  font-family: var(--font-title);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-silver);
  border-bottom: 2px solid transparent;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition);
}

.site-nav__index {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent-gold);
}

.site-nav__label {
  white-space: nowrap;
}

.site-nav__link:hover {
  color: var(--color-bright-gold);
  border-bottom-color: var(--color-accent-gold);
  background: rgba(212, 175, 55, 0.08);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-bright-gold);
  border-bottom-color: var(--color-bright-gold);
  background: linear-gradient(to top, rgba(212, 175, 55, 0.16), transparent 70%);
}

.site-nav__link--cta {
  margin-left: 0.4rem;
  box-shadow: inset 0 0 0 1px rgba(212, 175, 55, 0.35);
}

.site-nav__link--cta:hover {
  color: var(--color-ink);
  background: var(--color-accent-gold);
}

.site-nav__link--cta:hover .site-nav__index {
  color: var(--color-ink);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  margin-left: auto;
  padding: 0.45rem 0.75rem;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-bright-gold);
  background: rgba(212, 175, 55, 0.06);
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.nav-toggle__box {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle__line {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle__line--top,
.nav-toggle__line--mid,
.nav-toggle__line--bottom {
  background: currentColor;
}

.nav-toggle.is-active .nav-toggle__line--top {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__line--mid {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle__line--bottom {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle__text {
  font-size: 0.7rem;
}

@media (max-width: 1199px) {
  .site-header__status {
    display: none;
  }
}

@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    display: none;
    background: var(--color-navy);
    border-top: 1px solid rgba(212, 175, 55, 0.25);
    border-bottom: 1px solid rgba(212, 175, 55, 0.25);
    box-shadow: 0 24px 32px rgba(0, 0, 0, 0.35);
  }

  .site-nav[data-open] {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.875rem;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .site-nav__item {
    display: block;
  }

  .site-nav__link {
    width: 100%;
    justify-content: space-between;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-nav__link--cta {
    margin-left: 0;
  }

  .site-nav__link[aria-current="page"] {
    border-left: 3px solid var(--color-accent-gold);
  }
}

.site-footer {
  position: relative;
  margin-top: 4rem;
  padding-top: 3rem;
  background: linear-gradient(180deg, var(--color-deep-blue) 0%, #060d1a 100%);
  border-top: 1px solid rgba(212, 175, 55, 0.22);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent-gold) 25%, var(--color-bright-gold) 50%, var(--color-accent-gold) 75%, transparent 100%);
  opacity: 0.55;
}

.site-footer__top {
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: 2.75rem;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.5rem;
}

.site-footer__info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 1.625rem;
  letter-spacing: 0.06em;
  color: var(--color-light);
  text-transform: uppercase;
}

.site-footer__brand::before {
  content: "";
  width: 16px;
  height: 16px;
  background: var(--color-accent-gold);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

.site-footer__tagline {
  margin-bottom: 0.6rem;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-accent-gold);
}

.site-footer__trust {
  max-width: 42ch;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-silver);
}

.site-footer__nav {
  min-width: 0;
}

.site-footer__heading {
  margin-bottom: 0.9rem;
  padding-bottom: 0.45rem;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-light);
  border-bottom: 1px solid rgba(212, 175, 55, 0.3);
}

.site-footer__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem 1.25rem;
}

.site-footer__list a {
  display: inline-block;
  padding: 0.18rem 0;
  font-size: 0.875rem;
  color: var(--color-silver);
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.site-footer__list a:hover {
  color: var(--color-bright-gold);
  border-bottom-color: var(--color-accent-gold);
}

.site-footer__contact {
  min-width: 0;
}

.site-footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--color-silver);
}

.site-footer__contact-item {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.site-footer__contact-label {
  min-width: 3.2em;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
}

.site-footer__contact-note {
  display: block;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: #7d8a9d;
  border-top: 1px dashed rgba(212, 175, 55, 0.25);
}

.site-footer__bottom {
  background: rgba(0, 0, 0, 0.22);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer__bottom-inner {
  max-width: var(--content-width);
  margin-inline: auto;
  padding: 1.25rem var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  font-size: 0.8125rem;
  color: #7d8a9d;
}

.site-footer__bottom-note {
  letter-spacing: 0.04em;
}

@media (max-width: 1023px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__info {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .site-footer__list {
    grid-template-columns: 1fr;
  }
}

.grid {
  display: grid;
  gap: 1.5rem;
}

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

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

@media (max-width: 1023px) {
  .grid-cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .grid-cols-2,
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.5rem;
  font-size: 0.8125rem;
  color: var(--color-silver);
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.breadcrumb__item:not(:last-child)::after {
  content: "/";
  color: var(--color-accent-gold);
  opacity: 0.6;
}

.breadcrumb__link {
  color: var(--color-silver);
  transition: color var(--transition);
}

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

.breadcrumb__current {
  color: var(--color-bright-gold);
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-light);
  background: transparent;
  border: 1px solid var(--color-accent-gold);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

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

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

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

.card {
  padding: 1.75rem;
  background: var(--color-light);
  color: var(--color-ink);
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.28);
  border-color: rgba(212, 175, 55, 0.5);
}

.card--dark {
  background: rgba(16, 35, 63, 0.7);
  color: var(--color-silver);
}

.panel {
  position: relative;
  padding: 1.75rem;
  background: linear-gradient(145deg, rgba(16, 35, 63, 0.78), rgba(10, 22, 40, 0.5));
  border: 1px solid rgba(212, 175, 55, 0.18);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
  transition: border-color var(--transition);
}

.panel:hover {
  border-color: rgba(212, 175, 55, 0.5);
}

.panel--light {
  background: var(--color-light);
  color: var(--color-ink);
}

.section-title {
  margin-bottom: 1.25rem;
  font-family: var(--font-title);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
  line-height: 1.05;
  text-transform: uppercase;
  color: var(--color-light);
}

.section-title--center {
  text-align: center;
}

.section-title__num {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 8rem;
  line-height: 0.8;
  color: var(--color-accent-gold);
  opacity: 0.2;
}

.eyebrow {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.25rem 0.8rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  background: rgba(212, 175, 55, 0.06);
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(145deg, var(--color-navy), var(--color-deep-blue));
  border: 1px solid rgba(212, 175, 55, 0.15);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(212, 175, 55, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 175, 55, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

.media-frame--portrait {
  aspect-ratio: 3 / 4;
}

.media-frame__inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-silver);
}

.prose {
  max-width: 65ch;
  color: var(--color-silver);
}

.prose p {
  margin-bottom: 1.25rem;
}

.prose h2,
.prose h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-light);
}

.prose ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}

.prose ol {
  list-style: decimal;
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}

.prose a {
  color: var(--color-bright-gold);
  border-bottom: 1px solid rgba(212, 175, 55, 0.4);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.15s !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .card,
  .card:hover {
    transform: none !important;
  }
}

@media (scripting: none) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}