:root {
  --amber: #E8A33D;
  --orange: #C75B12;
  --brown: #2E1E16;
  --brown-deep: #1B110D;
  --cream: #F5E6D3;
  --lime: #7FFF00;
  --blue: #00D4FF;
  --gray: #6B5B4F;
  --gold: #B8860B;
  --red: #8B0000;
  --light-amber: #F0C29A;
  --cream-dim: rgba(245, 230, 211, 0.65);
  --font-heading: "Noto Serif SC", "Source Han Serif", "SimSun", serif;
  --font-body: "Noto Sans SC", "Source Han Sans", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --radius-lg: 1.5rem;
  --radius-md: 1rem;
  --radius-sm: 0.75rem;
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  background:
    radial-gradient(circle at 90% 15%, rgba(232, 163, 61, 0.12), transparent 30%),
    radial-gradient(circle at 5% 75%, rgba(0, 212, 255, 0.07), transparent 26%),
    var(--cream);
  color: #241510;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  line-height: 1.25;
  margin-top: 0;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

p {
  margin-top: 0;
}

img {
  max-width: 100%;
}

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

a:hover {
  color: var(--brown);
}

:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(1180px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-main {
  min-height: 58vh;
}

.content {
  padding-block: 2.5rem 4rem;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -4rem;
  display: inline-block;
  background: var(--lime);
  color: var(--brown);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  z-index: 200;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
  color: var(--brown);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--lime), var(--amber));
  box-shadow: 0 0 8px rgba(127, 255, 0, 0.45);
  z-index: 120;
  pointer-events: none;
}

.site-header {
  position: relative;
  z-index: 50;
  background: var(--brown);
  color: var(--cream);
  border-bottom: 4px solid var(--amber);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    115deg,
    transparent 0,
    transparent 36px,
    rgba(245, 230, 211, 0.045) 36px,
    rgba(245, 230, 211, 0.045) 38px,
    transparent 38px,
    transparent 76px
  );
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent 0,
    transparent 2px,
    rgba(0, 0, 0, 0.07) 2px,
    rgba(0, 0, 0, 0.07) 3px
  );
}

.header-topbar,
.header-main {
  position: relative;
  z-index: 1;
}

.header-topbar {
  background: rgba(27, 17, 13, 0.72);
  border-bottom: 1px solid rgba(232, 163, 61, 0.28);
  font-size: 0.8rem;
}

.header-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  min-height: 2.4rem;
}

.header-topbar__signal {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cream-dim);
  letter-spacing: 0.08em;
}

.signal-dot {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  margin-right: 0.45rem;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.45;
  }
}

.header-topbar__slogan {
  margin: 0;
  color: var(--cream);
  font-weight: 500;
  letter-spacing: 0.14em;
}

.header-topbar__status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px dashed rgba(232, 163, 61, 0.6);
  padding-bottom: 1px;
}

.header-topbar__status:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.header-main__inner {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  min-height: 5.25rem;
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  border-radius: 0.6rem;
}

.site-brand:hover {
  color: inherit;
}

.site-brand__mark {
  display: inline-block;
  background: var(--amber);
  color: var(--brown);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 2.1rem;
  line-height: 1.1;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.85rem 0.2rem 0.65rem;
  border-radius: 0.35rem 0.9rem 0.35rem 0.9rem;
}

.site-brand__name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--cream);
  letter-spacing: 0.22em;
  margin-left: 0.5rem;
  transform: skewX(-6deg);
}

.header-nav {
  margin-left: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
}

.header-nav__meta {
  margin: 0;
  font-size: 0.75rem;
  color: var(--cream-dim);
  letter-spacing: 0.18em;
}

.main-nav__list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.15rem;
}

.main-nav a {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  color: var(--cream);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  border-radius: 999px;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.main-nav a:hover {
  background: rgba(232, 163, 61, 0.16);
  color: var(--amber);
}

.main-nav a[aria-current="page"] {
  background: var(--amber);
  color: var(--brown);
  font-weight: 800;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  padding: 0.55rem 1rem;
  background: var(--amber);
  color: var(--brown);
  border: 0;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.85rem;
  line-height: 1;
  cursor: pointer;
}

.nav-toggle:hover {
  background: var(--light-amber);
}

.nav-toggle__bars {
  position: relative;
  display: inline-block;
  width: 1em;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.nav-toggle__bars::before {
  top: -0.35em;
}

.nav-toggle__bars::after {
  top: 0.35em;
}

.nav-toggle__text {
  font: inherit;
  line-height: 1;
}

.site-footer {
  position: relative;
  background:
    radial-gradient(circle at 15% 0%, rgba(232, 163, 61, 0.12), transparent 34%),
    var(--brown-deep);
  color: var(--cream);
  border-top: 4px solid var(--orange);
  padding: 3.5rem 0 2rem;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    115deg,
    transparent 0,
    transparent 44px,
    rgba(245, 230, 211, 0.035) 44px,
    rgba(245, 230, 211, 0.035) 46px,
    transparent 46px,
    transparent 84px
  );
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

.site-header a,
.site-footer a {
  text-decoration: none;
}

.site-header a:hover,
.site-footer a:hover {
  color: var(--lime);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.3fr;
  gap: 2.25rem;
}

.footer-brand__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--amber);
  letter-spacing: 0.1em;
}

.footer-brand__slogan {
  margin: 0.35rem 0 0.5rem;
  color: var(--cream);
  font-size: 1rem;
  letter-spacing: 0.1em;
}

.footer-brand__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--cream-dim);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-links__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 0.12em;
}

.footer-links a {
  width: fit-content;
  color: var(--cream);
  border-bottom: 1px solid transparent;
  padding: 0.1rem 0;
}

.footer-links a:hover {
  color: var(--lime);
  border-bottom-color: rgba(127, 255, 0, 0.5);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer-contact__item {
  color: var(--cream-dim);
  font-size: 0.9rem;
}

.footer-legal {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(245, 230, 211, 0.14);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgba(245, 230, 211, 0.55);
}

.top-link {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--amber);
  color: var(--brown);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  z-index: 110;
  box-shadow:
    0 0 0 4px rgba(232, 163, 61, 0.28),
    0 10px 22px rgba(0, 0, 0, 0.28);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.top-link:hover {
  transform: translateY(-3px);
  box-shadow:
    0 0 0 4px rgba(127, 255, 0, 0.3),
    0 12px 26px rgba(0, 0, 0, 0.34);
}

.top-link[hidden] {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border: 2px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.92rem;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
}

.btn--primary {
  background: var(--amber);
  color: var(--brown);
  box-shadow: 0 4px 0 rgba(199, 91, 18, 0.38);
}

.btn--primary:hover {
  background: var(--light-amber);
  color: var(--brown);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 rgba(199, 91, 18, 0.32);
}

.btn--ghost {
  background: transparent;
  border-color: var(--amber);
  color: var(--amber);
}

.btn--ghost:hover {
  background: rgba(232, 163, 61, 0.12);
  color: var(--amber);
  transform: translateY(-2px);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
}

.breadcrumb li {
  color: var(--gray);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: rgba(107, 91, 79, 0.6);
}

.breadcrumb a {
  color: var(--gray);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--orange);
}

.breadcrumb [aria-current="page"] {
  color: var(--orange);
  font-weight: 700;
}

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

.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));
}

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at 72% 18%, rgba(232, 163, 61, 0.3), transparent 42%),
    linear-gradient(135deg, #2e1e16, #1b110d);
  border: 1px solid rgba(232, 163, 61, 0.35);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.12) 0,
    rgba(0, 0, 0, 0.12) 1px,
    transparent 1px,
    transparent 4px
  );
}

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

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

.media-frame__placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: rgba(245, 230, 211, 0.5);
}

.card {
  background: #FFF7EC;
  border: 1px solid rgba(107, 91, 79, 0.22);
  border-left: 4px solid var(--amber);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.card__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
}

.card__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gray);
}

.status-panel {
  background: var(--brown);
  border: 1px solid rgba(232, 163, 61, 0.4);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  box-shadow:
    inset 0 0 0 1px rgba(245, 230, 211, 0.04),
    0 14px 28px rgba(0, 0, 0, 0.18);
}

.status-panel__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px dashed rgba(245, 230, 211, 0.14);
}

.status-panel__row:last-child {
  border-bottom: 0;
}

.status-panel__label {
  color: var(--cream-dim);
}

.status-panel__value {
  color: var(--lime);
  font-weight: 700;
  text-align: right;
}

.status-panel__value em {
  color: var(--amber);
  font-style: normal;
}

.rich-text {
  max-width: 68ch;
}

.rich-text p {
  font-size: 1.06rem;
  line-height: 1.9;
  margin-bottom: 1.2rem;
}

.rich-text a {
  color: var(--orange);
  font-weight: 600;
}

.rich-text a:hover {
  color: var(--brown);
}

.rich-text ul {
  padding-left: 1.1rem;
}

.rich-text li {
  margin-bottom: 0.4rem;
}

@media (max-width: 980px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .header-main__inner {
    flex-wrap: wrap;
  }

  .header-nav {
    display: none;
    width: 100%;
    margin-left: 0;
    align-items: stretch;
    background: var(--brown-deep);
    border: 1px solid rgba(232, 163, 61, 0.32);
    border-radius: var(--radius-md);
    padding: 1rem 1rem 1.25rem;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
  }

  .header-nav[data-open] {
    display: flex;
  }

  .header-nav__meta {
    padding-left: 0.4rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px dashed rgba(245, 230, 211, 0.15);
    margin-bottom: 0.5rem;
  }

  .main-nav__list {
    flex-direction: column;
    gap: 0.1rem;
  }

  .main-nav a {
    display: block;
    width: 100%;
    border-radius: var(--radius-sm);
    padding: 0.7rem 0.9rem;
    font-size: 1rem;
  }

  .main-nav a[aria-current="page"] {
    background: transparent;
    color: var(--lime);
    box-shadow: inset 3px 0 0 var(--lime);
  }
}

@media (max-width: 620px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .footer-links {
    gap: 0.3rem;
  }

  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-brand__mark {
    font-size: 1.8rem;
  }

  .site-brand__name {
    font-size: 1.25rem;
    letter-spacing: 0.14em;
  }

  .header-main__inner {
    gap: 1rem;
  }

  .header-topbar__slogan {
    flex-basis: 100%;
    text-align: center;
    font-size: 0.78rem;
  }

  .header-topbar__inner {
    justify-content: center;
    text-align: center;
    padding-top: 0.3rem;
    padding-bottom: 0.3rem;
  }
}

@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;
  }

  .signal-dot {
    animation: none;
  }

  .top-link,
  .btn {
    transition: none;
  }
}