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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(155, 92, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 92, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:root {
  --color-bg: #0b0b0f;
  --color-panel: #16121f;
  --color-panel-2: #1d1729;
  --color-text: #dcd0c0;
  --color-text-bright: #faf6ee;
  --color-text-muted: rgba(220, 208, 192, 0.55);
  --color-pink: #ff2a78;
  --color-purple: #9b5cff;
  --color-green: #00ff9f;
  --color-orange: #ffb000;
  --gradient-neon: linear-gradient(135deg, #ff2a78 0%, #9b5cff 100%);
  --font-heading: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", system-ui, sans-serif;
  --container-max: 1280px;
  --header-h: 72px;
  --radius-sm: 6px;
  --radius: 10px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  --transition: 0.22s ease;
  --border: rgba(220, 208, 192, 0.09);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 900;
  color: var(--color-text-bright);
  line-height: 1.2;
  margin: 0 0 0.6em;
}

p { margin: 0 0 1em; }

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

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

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

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

button { font-family: inherit; font-size: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 3px;
  border-radius: 2px;
}

#main-content { outline: none; display: block; }

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

.is-hidden { display: none !important; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 3000;
  padding: 10px 20px;
  background: var(--color-pink);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  border-radius: 0 0 10px 0;
  transition: none;
}

.skip-link:focus {
  left: 0;
  color: #fff;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-neon);
  border-radius: 0 3px 3px 0;
  z-index: 4000;
  pointer-events: none;
  box-shadow: 0 0 12px rgba(255, 42, 120, 0.6);
}

.site-header {
  position: relative;
  z-index: 1200;
  background: rgba(11, 11, 15, 0.92);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 16px;
}

.site-brand {
  display: inline-flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.1;
  text-decoration: none;
  flex-shrink: 0;
}

.site-brand__name {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 900;
  color: var(--color-text-bright);
  letter-spacing: 0.08em;
  text-shadow:
    1px 0 var(--color-pink),
    -1px 0 var(--color-purple),
    0 0 10px rgba(255, 42, 120, 0.35);
}

.site-brand__tag {
  font-size: 10px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-indent: 0.1em;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav__link {
  display: inline-block;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}

.site-nav__link:hover {
  color: var(--color-text-bright);
  background: rgba(155, 92, 255, 0.12);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-text-bright);
  background: rgba(255, 42, 120, 0.12);
  box-shadow: inset 0 -2px 0 var(--color-pink);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  border: 1px solid rgba(155, 92, 255, 0.35);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.nav-toggle:hover {
  border-color: var(--color-purple);
  box-shadow: 0 0 16px rgba(155, 92, 255, 0.3);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-bright);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

.announce-bar {
  overflow: hidden;
  background: var(--gradient-neon);
  border-top: 1px solid rgba(0, 0, 0, 0.25);
}

.announce-bar__track {
  display: flex;
  width: max-content;
  padding: 6px 0;
  white-space: nowrap;
}

.announce-bar__item {
  display: inline-flex;
  align-items: center;
  margin-right: 64px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: #fff;
}

.announce-bar__item::before {
  content: "✦";
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 10px;
}

@media (prefers-reduced-motion: no-preference) {
  .announce-bar__track {
    animation: announce-scroll 24s linear infinite;
  }
}

@keyframes announce-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.site-footer {
  background: var(--color-panel);
  border-top: 1px solid rgba(155, 92, 255, 0.25);
  margin-top: 96px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding: 56px 0 44px;
}

.site-footer__logo {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 900;
  color: var(--color-text-bright);
  letter-spacing: 0.08em;
  text-shadow:
    1px 0 var(--color-pink),
    -1px 0 var(--color-purple);
}

.site-footer__desc {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-text-muted);
  max-width: 40ch;
}

.site-footer__heading {
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: var(--color-text-bright);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(155, 92, 255, 0.3);
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer__item {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.site-footer__item a {
  color: var(--color-text);
  transition: color var(--transition);
}

.site-footer__item a:hover {
  color: var(--color-pink);
}

.site-footer__label {
  display: inline-block;
  margin-right: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-purple);
}

.site-footer__icp {
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.06em;
}

.site-footer__bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}

.site-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 24px;
}

.site-footer__copyright,
.site-footer__note {
  margin: 0;
  font-size: 12px;
  color: var(--color-text-muted);
}

.site-btn {
  display: inline-block;
  padding: 10px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.site-btn--primary {
  background: var(--gradient-neon);
  color: #fff;
  box-shadow: 0 0 18px rgba(255, 42, 120, 0.3);
}

.site-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(155, 92, 255, 0.5);
  color: #fff;
}

.site-btn--ghost {
  background: transparent;
  border-color: rgba(155, 92, 255, 0.5);
  color: var(--color-text-bright);
}

.site-btn--ghost:hover {
  border-color: var(--color-purple);
  color: var(--color-purple);
  background: rgba(155, 92, 255, 0.08);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

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

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

.breadcrumb__sep {
  color: var(--color-purple);
  font-size: 12px;
}

.site-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.site-grid--cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.media-card {
  position: relative;
  background: var(--color-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.media-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 42, 120, 0.5);
  box-shadow: 0 14px 36px rgba(255, 42, 120, 0.14);
}

.media-card__thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(155, 92, 255, 0.28), transparent 70%),
    radial-gradient(ellipse at 75% 70%, rgba(255, 42, 120, 0.22), transparent 60%),
    var(--color-panel-2);
  overflow: hidden;
}

.media-card__thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 42%, rgba(250, 246, 238, 0.08) 48%, transparent 54%);
  background-size: 220% 220%;
}

.media-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  padding: 2px 12px;
  font-size: 11px;
  font-weight: 700;
  background: var(--color-orange);
  color: #0b0b0f;
  border-radius: 999px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.media-card__body {
  padding: 16px;
}

.media-card__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 900;
  color: var(--color-text-bright);
  line-height: 1.35;
}

.media-card__meta {
  font-size: 12px;
  color: var(--color-text-muted);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid rgba(220, 208, 192, 0.2);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover {
  color: var(--color-text-bright);
  border-color: var(--color-purple);
  box-shadow: 0 0 12px rgba(155, 92, 255, 0.2);
}

.filter-btn.is-active {
  background: var(--gradient-neon);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 16px rgba(255, 42, 120, 0.35);
}

[data-filter-item] {
  transition: opacity 0.2s var(--transition), transform 0.2s var(--transition);
}

.chapter {
  padding: 68px 0 56px;
  border-top: 1px solid var(--border);
}

.chapter__head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 26px;
  flex-wrap: wrap;
}

.chapter__num {
  font-family: var(--font-heading);
  font-size: 64px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-purple);
  opacity: 0.85;
}

.chapter__title {
  font-size: 30px;
  font-weight: 900;
  margin: 0;
  color: var(--color-text-bright);
}

.chapter__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: 60ch;
  flex-basis: 100%;
}

.chapter-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}

.chapter-preview__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--color-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.chapter-preview__item:hover {
  border-color: var(--color-pink);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(255, 42, 120, 0.14);
}

.chapter-preview__num {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 900;
  color: var(--color-purple);
  line-height: 1;
  flex-shrink: 0;
}

.chapter-preview__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-bright);
  line-height: 1.4;
}

.page-hero {
  padding: 84px 0 44px;
  border-bottom: 1px solid var(--border);
}

.page-hero__title {
  font-size: clamp(38px, 6vw, 80px);
  font-weight: 900;
  line-height: 1.08;
  color: var(--color-text-bright);
  letter-spacing: -0.02em;
  text-shadow: 3px 0 rgba(255, 42, 120, 0.8), -3px 0 rgba(155, 92, 255, 0.8);
}

.page-hero__subtitle {
  margin-top: 16px;
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 70ch;
}

.glitch-title {
  position: relative;
  display: inline-block;
  text-shadow: 2px 0 rgba(255, 42, 120, 0.85), -2px 0 rgba(155, 92, 255, 0.85);
}

.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-pink), var(--color-purple));
  border-radius: 2px;
}

.timeline__item {
  position: relative;
  padding: 12px 0;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 22px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 12px rgba(0, 255, 159, 0.7);
}

@media (min-width: 821px) and (max-width: 1024px) {
  .site-nav__link {
    padding: 8px 11px;
    font-size: 13px;
  }

  .container {
    width: min(100% - 32px, var(--container-max));
  }

  .site-footer__grid {
    gap: 28px;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(100% - 32px, var(--container-max));
  }

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

  .site-header__inner {
    min-height: 64px;
  }

  .site-brand__name {
    font-size: 22px;
  }

  .site-brand__tag {
    font-size: 9px;
    letter-spacing: 0.22em;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 16px;
    width: 264px;
    max-width: calc(100vw - 32px);
    margin-top: 8px;
    padding: 14px;
    background: var(--color-panel-2);
    border: 1px solid rgba(155, 92, 255, 0.45);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px) scale(0.98);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    z-index: 2000;
  }

  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .site-nav__link {
    display: block;
    padding: 12px 16px;
    text-align: right;
    font-size: 15px;
    border-radius: var(--radius-sm);
  }

  .site-nav__link[aria-current="page"] {
    border-right: 3px solid var(--color-pink);
    box-shadow: none;
  }

  .announce-bar__item {
    margin-right: 40px;
    font-size: 11px;
    letter-spacing: 0.1em;
  }

  .site-footer {
    margin-top: 64px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 44px 0 36px;
  }

  .site-footer__bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .site-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }

  .chapter {
    padding: 48px 0 36px;
  }

  .chapter__num {
    font-size: 44px;
  }

  .chapter__title {
    font-size: 24px;
  }

  .page-hero {
    padding: 56px 0 32px;
  }
}

@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;
  }

  .announce-bar__track {
    animation: none;
  }
}