:root {
  --color-gold: #D4AF37;
  --color-bg-deep: #2B1D14;
  --color-bg-secondary: #4A3423;
  --color-text-strong: #FDF8F2;
  --color-light-gold: #E9CFA0;
  --color-border-gold: #9C7A1F;
  --color-emerald: #A3C1AD;
  --color-ink: #1A1A1A;
  --color-bg-light: #F0E4D1;
  --color-transition: #6B4C3B;
  --font-heading: "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN", "STSong", "SimSun", serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;
  --header-height: 68px;
}

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

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

body {
  background: var(--color-bg-deep);
  color: var(--color-text-strong);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(212, 175, 55, 0.3);
  color: var(--color-text-strong);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.3;
  color: var(--color-text-strong);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

a {
  color: var(--color-light-gold);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 4px;
  border-radius: 2px;
}

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

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

.container {
  width: min(100% - 48px, 1440px);
  margin-inline: auto;
}

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

.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 10001;
  background: var(--color-gold);
  color: var(--color-ink);
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: top 0.2s ease-out;
}

.skip-link:focus-visible {
  top: 16px;
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-light-gold));
  z-index: 10002;
  transition: width 0.1s ease-out;
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(43, 29, 20, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(156, 122, 31, 0.3);
}

.header__inner {
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-height);
}

.header__brand {
  flex-shrink: 0;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-gold), var(--color-border-gold));
  color: var(--color-bg-deep);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 20px;
  border-radius: 10px 10px 10px 2px;
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
}

.brand-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text-strong);
  white-space: nowrap;
}

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

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  color: var(--color-light-gold);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-strong);
}

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

.nav-link[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
}

.header__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.1em;
  color: var(--color-transition);
  text-transform: uppercase;
  white-space: nowrap;
}

.header__chapter {
  color: var(--color-text-strong);
  font-weight: 600;
}

.header__progress {
  color: var(--color-border-gold);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border-gold);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
}

.nav-toggle__box {
  position: relative;
  width: 20px;
  height: 14px;
}

.nav-toggle__box::before,
.nav-toggle__box::after {
  content: '';
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
  transition: transform 0.3s ease-out, top 0.3s ease-out;
}

.nav-toggle__box::before {
  top: 0;
}

.nav-toggle__box::after {
  top: 12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box::after {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .header__meta {
    display: none;
  }

  .header__inner {
    padding-inline: 16px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

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

  .header__nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    background: rgba(74, 52, 35, 0.98);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 16px;
    border-bottom: 1px solid var(--color-border-gold);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.25s ease-out, opacity 0.25s ease-out, visibility 0.25s ease-out;
  }

  .header__nav[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .header__nav[data-open] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

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

  .nav-link {
    justify-content: space-between;
    font-size: 17px;
    padding: 14px 16px;
  }

  .nav-link[aria-current="page"]::after {
    left: auto;
    right: 16px;
    width: 8px;
    height: 8px;
    bottom: 50%;
    transform: translateY(50%) rotate(45deg);
    border-radius: 2px;
  }

  .brand-text {
    font-size: 15px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 17px;
  }

  .site-footer .footer__columns {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }
}

@media (max-width: 480px) {
  .container {
    width: min(100% - 24px, 1440px);
  }

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

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

.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--color-bg-deep), var(--color-bg-secondary));
  border-top: 1px solid rgba(156, 122, 31, 0.3);
  overflow: hidden;
}

.footer__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 100%, rgba(212, 175, 55, 0.12), transparent 55%),
    repeating-linear-gradient(45deg, transparent, transparent 24px, rgba(212, 175, 55, 0.02) 24px, rgba(212, 175, 55, 0.02) 25px);
  pointer-events: none;
  z-index: 0;
}

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

.footer__top {
  padding: 64px 0 36px;
  border-bottom: 1px solid rgba(156, 122, 31, 0.25);
}

.footer__trust {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-text-strong);
  letter-spacing: 0.08em;
}

.footer__trust::after {
  content: ' · 万象城ALLWINCITY';
  font-size: 0.3em;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.2em;
  display: block;
  margin-top: 12px;
}

.footer__intro {
  margin-top: 16px;
  max-width: 480px;
  color: var(--color-light-gold);
  font-size: 15px;
  line-height: 1.9;
}

.footer__columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  padding: 48px 0;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  text-transform: uppercase;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(156, 122, 31, 0.3);
}

.footer__list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.footer__list a,
.footer__address a {
  color: var(--color-light-gold);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer__list a:hover,
.footer__address a:hover {
  color: var(--color-gold);
}

.footer__address {
  font-style: normal;
  display: grid;
  gap: 8px;
  color: var(--color-light-gold);
  font-size: 14px;
  line-height: 1.7;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  padding: 24px 0;
  border-top: 1px solid rgba(156, 122, 31, 0.25);
  color: var(--color-transition);
  font-size: 13px;
}

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

.footer__legal a {
  color: var(--color-transition);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.footer__copyright {
  color: var(--color-border-gold);
}

.footer__icp {
  color: var(--color-transition);
}

.split-pane {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 1024px) {
  .split-pane {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 14px;
  color: var(--color-border-gold);
  padding: 16px 0;
}

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

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

.breadcrumb [aria-current="page"] {
  color: var(--color-text-strong);
  font-weight: 500;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

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

.btn--primary:hover {
  background: var(--color-light-gold);
  transform: translateY(-1px);
}

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

.btn--ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  transform: translateY(-1px);
}

.image-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-secondary);
  border-radius: 58% 42% 55% 45% / 45% 55% 45% 55%;
  aspect-ratio: 4 / 5;
}

.image-frame--landscape {
  aspect-ratio: 16 / 10;
  border-radius: 42% 58% 50% 50% / 60% 40% 60% 40%;
}

.image-frame--portrait {
  aspect-ratio: 3 / 4;
  border-radius: 50% 50% 45% 55% / 55% 45% 55% 45%;
}

.image-frame::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: inherit;
  pointer-events: none;
}

@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;
  }
}