:root {
  --color-gold-bright: #F9E79F;
  --color-gold: #E6B800;
  --color-gold-dark: #B8860B;
  --color-bg: #0A0E1A;
  --color-card: #101830;
  --color-red: #C62828;
  --color-red-light: #E53935;
  --color-silver: #C0C0C0;
  --color-paper: #F5F5F5;
  --color-blue: #1E3A5F;
  --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", "SimSun", serif;
  --font-sans: "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "SFMono-Regular", Consolas, monospace;
  --shadow-panel: 0 10px 30px rgba(0, 0, 0, 0.35);
}

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

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

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

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(230, 184, 0, 0.08), transparent 60%),
    radial-gradient(800px 450px at -10% 20%, rgba(198, 40, 40, 0.06), transparent 50%),
    linear-gradient(135deg, transparent 0 82%, rgba(230, 184, 0, 0.03) 100%);
  pointer-events: none;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

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

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

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.content-container {
  max-width: 880px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

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

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-paper);
  color: var(--color-bg);
  padding: 0.6rem 1rem;
  z-index: 2000;
  font-weight: 700;
}

.skip-link:focus {
  left: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--color-gold-dark), var(--color-gold), var(--color-gold-bright));
  box-shadow: 0 0 12px rgba(230, 184, 0, 0.7);
  z-index: 2000;
}

.top-bar {
  background: rgba(8, 11, 20, 0.9);
  border-bottom: 1px solid rgba(230, 184, 0, 0.22);
}

.top-bar-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 36px;
}

.top-bar-text {
  color: var(--color-silver);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.site-header {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #0d1322 0%, var(--color-card) 100%);
  border-bottom: 1px solid rgba(230, 184, 0, 0.35);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle at top right, rgba(230, 184, 0, 0.14), transparent 70%);
  pointer-events: none;
}

.site-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(230, 184, 0, 0.6), transparent);
}

.masthead {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2.2rem 0;
}

.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--color-red-light), var(--color-red) 60%, #5a0000);
  border: 3px solid var(--color-gold);
  box-shadow: 0 0 0 4px rgba(230, 184, 0, 0.15), inset 0 0 16px rgba(0, 0, 0, 0.45);
  font-family: var(--font-serif);
  font-weight: 900;
  color: var(--color-gold-bright);
}

.seal-text {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  line-height: 1.1;
}

.brand-logo {
  text-align: center;
}

.site-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  color: inherit;
}

.site-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--color-gold-bright);
  line-height: 1.2;
  text-shadow: 0 0 18px rgba(230, 184, 0, 0.2);
}

.site-subtitle {
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: var(--color-silver);
  margin-top: 0.3rem;
}

.masthead-actions {
  display: flex;
  justify-content: flex-end;
}

.update-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: var(--color-red);
  color: #fff;
  border: 1px solid rgba(249, 231, 159, 0.5);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 0 14px rgba(198, 40, 40, 0.35);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gold-bright);
  box-shadow: 0 0 8px var(--color-gold);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  background: rgba(10, 14, 26, 0.94);
  backdrop-filter: blur(6px);
  border-top: 1px solid rgba(230, 184, 0, 0.35);
  border-bottom: 1px solid rgba(230, 184, 0, 0.35);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.nav-toggle {
  display: none;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin: 0;
}

.nav-link {
  position: relative;
  display: block;
  padding: 0.75rem 1.3rem;
  color: var(--color-gold-bright);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  transition: color 0.2s, background 0.2s;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 3px;
  background: var(--color-red-light);
  transition: width 0.2s ease, left 0.2s ease;
}

.nav-link:hover {
  color: #fff;
}

.nav-link:hover::after {
  left: 0;
  width: 100%;
}

.nav-link[aria-current="page"] {
  color: #fff;
  background: rgba(230, 184, 0, 0.08);
  box-shadow: inset 0 3px 0 var(--color-red);
}

.nav-item + .nav-item .nav-link {
  border-left: 1px solid rgba(230, 184, 0, 0.12);
}

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

.content-section {
  padding: 3rem 0;
}

.section-label {
  color: var(--color-gold);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.section-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(230, 184, 0, 0.3);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: var(--color-gold-bright);
  margin: 0.5rem 0 1rem;
}

.section-divider {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold) 30%, transparent);
  margin: 2rem 0;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.95rem;
  text-align: center;
  transition: all 0.2s ease;
}

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

.btn-gold:hover {
  background: var(--color-gold-bright);
  border-color: var(--color-gold-bright);
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(230, 184, 0, 0.3);
}

.btn-red {
  background: var(--color-red);
  border-color: var(--color-red);
  color: #fff;
}

.btn-red:hover {
  background: var(--color-red-light);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-gold-dark);
  color: var(--color-gold-bright);
}

.btn-outline:hover {
  border-color: var(--color-gold);
  background: rgba(230, 184, 0, 0.08);
}

.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  margin: 0 0 2rem;
  padding: 0;
  font-size: 0.9rem;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--color-gold-dark);
}

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

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

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

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

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

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

.card {
  background: var(--color-card);
  border: 1px solid rgba(230, 184, 0, 0.18);
  border-radius: 6px;
  padding: 1.5rem;
  box-shadow: var(--shadow-panel);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: rgba(230, 184, 0, 0.6);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

.card-media {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.8), rgba(16, 24, 48, 0.9)), var(--color-card);
  background-image: linear-gradient(135deg, rgba(230, 184, 0, 0.15), transparent 60%);
  border-radius: 6px;
  margin-bottom: 1rem;
}

.site-footer {
  position: relative;
  margin-top: 5rem;
  color: var(--color-silver);
  background: linear-gradient(180deg, var(--color-card) 0%, var(--color-bg) 100%);
  border-top: 2px solid var(--color-gold-dark);
}

.site-footer::before {
  content: "财神送金";
  position: absolute;
  right: 2%;
  bottom: 0;
  z-index: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(4rem, 10vw, 8rem);
  line-height: 0.8;
  color: rgba(230, 184, 0, 0.04);
  pointer-events: none;
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding: 3rem 0 2.5rem;
}

.footer-col {
  min-width: 0;
}

.footer-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-gold-bright);
  letter-spacing: 0.1em;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(230, 184, 0, 0.25);
}

.footer-brand-name {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-gold-bright);
  margin-bottom: 0.75rem;
}

.footer-desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-silver);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li + li {
  margin-top: 0.4rem;
}

.footer-link {
  display: inline-block;
  color: var(--color-silver);
  font-size: 0.95rem;
  transition: color 0.2s;
}

.footer-link::before {
  content: "»";
  color: var(--color-gold-dark);
  margin-right: 0.3rem;
}

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

.footer-contact {
  margin: 0;
  font-style: normal;
  line-height: 1.8;
  font-size: 0.95rem;
}

.footer-bottom {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(230, 184, 0, 0.2);
  background: rgba(10, 14, 26, 0.6);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1.2rem;
  padding-bottom: 1.2rem;
  font-size: 0.9rem;
}

.footer-copyright {
  color: var(--color-silver);
}

.footer-legal-links {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}

.footer-legal {
  color: var(--color-silver);
  transition: color 0.2s;
}

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

.goto-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-red);
  border: 2px solid var(--color-gold);
  color: #fff;
  font-size: 1.25rem;
  line-height: 1;
  box-shadow: 0 4px 16px rgba(198, 40, 40, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1500;
}

.goto-top[data-visible="true"] {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-4px);
}

.goto-top:hover {
  background: var(--color-red-light);
}

@media (max-width: 768px) {
  .masthead {
    grid-template-columns: auto 1fr;
    gap: 0.8rem;
    padding: 1.2rem 0;
  }

  .seal {
    width: 56px;
    height: 56px;
    border-width: 2px;
  }

  .seal-text {
    font-size: 0.6rem;
    letter-spacing: 0.08em;
  }

  .brand-logo {
    text-align: left;
  }

  .site-title {
    font-size: 1.35rem;
    letter-spacing: 0.04em;
  }

  .site-subtitle {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
  }

  .masthead-actions {
    grid-column: 1 / -1;
    justify-content: flex-end;
  }

  .update-badge {
    font-size: 0.8rem;
    padding: 0.25rem 0.7rem;
  }

  .site-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-toggle {
    display: inline-flex;
    align-self: center;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: 1px solid var(--color-gold-dark);
    color: var(--color-gold-bright);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
  }

  .nav-toggle:hover {
    border-color: var(--color-gold);
    background: rgba(230, 184, 0, 0.1);
  }

  .nav-toggle-icon {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    position: relative;
  }

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

  .nav-toggle-icon::before {
    top: -6px;
  }

  .nav-toggle-icon::after {
    top: 6px;
  }

  .nav-list {
    display: none;
    width: 100%;
  }

  .site-nav[data-open="true"] .nav-list {
    display: flex;
    flex-direction: column;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 0.85rem 1.25rem;
    border-left: none !important;
    border-bottom: 1px solid rgba(230, 184, 0, 0.1);
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    padding: 2rem 0;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

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

  * {
    transition-duration: 0.01ms !important;
  }

  .goto-top {
    transition: none;
  }
}