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

:root {
  --color-bg: #0B1B3D;
  --color-bg-deep: #071127;
  --color-bg-card: #10294F;
  --color-gold: #D4AF37;
  --color-gold-light: #F0D98C;
  --color-gold-transparent: rgba(212, 175, 55, 0.2);
  --color-emerald: #2E8B57;
  --color-text: #E8EDF7;
  --color-text-muted: #7A8BA8;
  --color-warning: #C0392B;
  --color-white-transparent: rgba(255, 255, 255, 0.06);

  --font-heading: Georgia, 'Times New Roman', 'Noto Serif SC', serif;
  --font-body: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --header-height: 72px;
  --container-max: 1440px;
  --radius: 12px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
  --shadow-gold: 0 4px 28px rgba(212, 175, 55, 0.18);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
}

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

body {
  margin: 0;
  padding-top: var(--header-height);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  margin-top: 0;
  color: var(--color-text);
  line-height: 1.2;
}

p {
  margin-top: 0;
}

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

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

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

::selection {
  background: rgba(212, 175, 55, 0.35);
  color: var(--color-text);
}

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

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

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 5000;
  background: var(--color-gold);
  color: var(--color-bg-deep);
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: top 0.25s ease;
}

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

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.5);
  z-index: 4500;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(11, 27, 61, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  z-index: 1000;
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.25);
}

@supports not (backdrop-filter: blur(1px)) {
  .site-header {
    background: rgba(11, 27, 61, 0.99);
  }
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 38px,
    rgba(255, 255, 255, 0.025) 38px,
    rgba(255, 255, 255, 0.025) 39px,
    transparent 39px
  );
  pointer-events: none;
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(212, 175, 55, 0.5) 15%, rgba(212, 175, 55, 0.15) 50%, rgba(212, 175, 55, 0.5) 85%, transparent 100%);
  pointer-events: none;
}

.site-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 2.5vw, 2.5rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(1rem, 3vw, 3rem);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.site-header__logo {
  width: 36px;
  height: 28px;
  color: var(--color-gold);
  filter: drop-shadow(0 0 6px rgba(212, 175, 55, 0.4));
  transition: filter 0.3s ease;
}

.site-header__brand:hover .site-header__logo {
  filter: drop-shadow(0 0 12px rgba(212, 175, 55, 0.8));
}

.site-header__name {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  font-family: var(--font-heading);
}

.site-header__name-main {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.08em;
}

.site-header__name-sub {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 2rem);
}

.site-nav__link {
  position: relative;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: 0.35rem 0.15rem;
  transition: color 0.3s ease;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), rgba(212, 175, 55, 0.1));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--color-gold);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  flex-shrink: 0;
}

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

.site-nav-toggle__line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

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

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

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

@media (max-width: 1024px) {
  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    width: min(360px, calc(100vw - 3rem));
    background: rgba(7, 17, 39, 0.98);
    border-left: 1px solid rgba(212, 175, 55, 0.25);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.35s ease, visibility 0.35s ease;
    overflow-y: auto;
    z-index: 999;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
  }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__item + .site-nav__item {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-nav__link {
    display: block;
    padding: 1rem 0;
    font-size: 1rem;
  }

  .site-nav__link::after {
    display: none;
  }

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

.site-footer {
  position: relative;
  background:
    repeating-linear-gradient(
      -45deg,
      var(--color-bg-deep) 0px,
      var(--color-bg-deep) 24px,
      rgba(255, 255, 255, 0.015) 24px,
      rgba(255, 255, 255, 0.015) 26px,
      var(--color-bg-deep) 26px,
      var(--color-bg-deep) 48px
    ),
    var(--color-bg-deep);
  border-top: 1px solid rgba(212, 175, 55, 0.3);
}

.site-footer::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 8%;
  width: 320px;
  height: 220px;
  background: radial-gradient(ellipse at bottom, rgba(212, 175, 55, 0.08), transparent 70%);
  pointer-events: none;
}

.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: clamp(2.5rem, 5vw, 4.5rem) clamp(1rem, 2.5vw, 2.5rem) 2rem;
  display: grid;
  grid-template-columns: 2fr 1.4fr 1.6fr;
  gap: clamp(1.5rem, 3vw, 3.5rem);
}

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

.site-footer__logo {
  width: 44px;
  height: 34px;
  color: var(--color-gold);
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 8px rgba(212, 175, 55, 0.3));
}

.site-footer__brand-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 0.75rem;
  letter-spacing: 0.06em;
}

.site-footer__tagline {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 0;
  max-width: 360px;
}

.site-footer__heading {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-footer__list--grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem 1rem;
}

.site-footer__link {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.site-footer__list--contact {
  gap: 0.75rem;
}

.site-footer__contact-item {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
}

.site-footer__contact-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-gold);
  flex-shrink: 0;
  min-width: 2.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.site-footer__contact-value {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  word-break: break-all;
}

.site-footer__bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 1.25rem clamp(1rem, 2.5vw, 2.5rem);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  position: relative;
  z-index: 1;
}

.site-footer__icp,
.site-footer__copyright {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0;
}

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

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

@media (max-width: 640px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .site-footer__brand {
    grid-column: auto;
  }

  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
    gap: 0.25rem;
  }
}

.back-to-top {
  position: fixed;
  bottom: clamp(1.25rem, 3vw, 2.5rem);
  right: clamp(1.25rem, 3vw, 2.5rem);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 1px solid rgba(212, 175, 55, 0.45);
  color: var(--color-gold);
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 500;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), background var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: rgba(212, 175, 55, 0.15);
  box-shadow: 0 0 28px rgba(212, 175, 55, 0.35);
  border-color: var(--color-gold);
}

.back-to-top:active {
  transform: scale(0.92);
}

.back-to-top__icon {
  width: 22px;
  height: 18px;
}

@media (max-width: 640px) {
  .back-to-top {
    width: 46px;
    height: 46px;
    bottom: 1rem;
    right: 1rem;
  }
}

.container {
  width: min(calc(100% - clamp(1rem, 3vw, 3rem)), var(--container-max));
  margin-inline: auto;
}

.section {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 1.25rem;
  padding-bottom: 1rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 56px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
}

.section-title__accent {
  color: var(--color-gold);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.82rem;
  margin-bottom: 2rem;
}

.breadcrumbs__item {
  display: flex;
  align-items: center;
}

.breadcrumbs__item + .breadcrumbs__item::before {
  content: '/';
  margin: 0 0.5rem;
  color: var(--color-gold);
  font-size: 0.9rem;
}

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

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

.breadcrumbs__item[aria-current="page"] .breadcrumbs__link {
  color: var(--color-gold);
  font-weight: 500;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.9rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.4;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-bg-deep);
}

.btn--gold:hover {
  background: var(--color-gold-light);
  color: var(--color-bg-deep);
  box-shadow: 0 6px 24px rgba(212, 175, 55, 0.35);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(212, 175, 55, 0.5);
  color: var(--color-gold);
}

.btn--ghost:hover {
  background: rgba(212, 175, 55, 0.08);
  border-color: var(--color-gold);
  color: var(--color-gold-light);
  transform: translateY(-2px);
}

.btn:active {
  transform: scale(0.96);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
}

.grid__col--span-3 { grid-column: span 3; }
.grid__col--span-4 { grid-column: span 4; }
.grid__col--span-5 { grid-column: span 5; }
.grid__col--span-6 { grid-column: span 6; }
.grid__col--span-7 { grid-column: span 7; }
.grid__col--span-8 { grid-column: span 8; }
.grid__col--span-9 { grid-column: span 9; }
.grid__col--span-12 { grid-column: 1 / -1; }

@media (max-width: 960px) {
  .grid__col--span-3,
  .grid__col--span-4,
  .grid__col--span-5,
  .grid__col--span-6,
  .grid__col--span-7,
  .grid__col--span-8,
  .grid__col--span-9 {
    grid-column: 1 / -1;
  }
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

.split--even {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

@media (max-width: 960px) {
  .split,
  .split--even {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.card {
  background: var(--color-bg-card);
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-gold);
  transform: translateY(-3px);
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.card__text {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.8rem;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.5;
  border: 1px solid transparent;
}

.badge--verified {
  background: rgba(46, 139, 87, 0.12);
  color: #52C289;
  border-color: rgba(46, 139, 87, 0.35);
}

.badge--gold {
  background: rgba(212, 175, 55, 0.1);
  color: var(--color-gold);
  border-color: rgba(212, 175, 55, 0.3);
}

.img-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(212, 175, 55, 0.18);
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.04) 25%, transparent 25%),
    linear-gradient(225deg, rgba(212, 175, 55, 0.04) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(212, 175, 55, 0.04) 75%),
    linear-gradient(45deg, var(--color-bg-card) 0%, var(--color-bg-deep) 100%);
  background-size: 24px 24px, 24px 24px, 24px 24px, auto;
}

.img-frame::before {
  content: attr(data-label);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.4rem 1rem;
  border: 1px dashed rgba(212, 175, 55, 0.35);
  border-radius: var(--radius-pill);
  background: rgba(11, 27, 61, 0.55);
}

.img-frame--wide { aspect-ratio: 16 / 9; }
.img-frame--tall { aspect-ratio: 3 / 4; }
.img-frame--square { aspect-ratio: 1 / 1; }
.img-frame--hero { aspect-ratio: 21 / 9; }

@media (max-width: 768px) {
  .img-frame--hero { aspect-ratio: 16 / 9; }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}