@import url('https://fonts.googleapis.com/css2?family=Kalam:wght@400;700&family=Patrick+Hand&display=swap');

/* ===== CSS 变量 ===== */
:root {
  --purple: #8000ff;
  --magenta: #ff00ff;
  --black: #0d0d0d;
  --dark: #111118;
  --darker: #0a0a12;
  --neon-green: #00ff9f;
  --text: #e0e0e0;
  --text-dim: #888;
  --border: rgba(128, 0, 255, 0.35);
  --border-bright: rgba(255, 0, 255, 0.6);
  --nav-h: 60px;
  --fixed-bar-h: 56px;
  --font-mono: 'Courier New', 'Consolas', monospace;
  --font-hand: 'Kalam', 'Patrick Hand', cursive;
  --radius: 4px;
  --glow-purple: 0 0 8px #8000ff, 0 0 20px rgba(128,0,255,0.4);
  --glow-magenta: 0 0 8px #ff00ff, 0 0 20px rgba(255,0,255,0.4);
  --transition: 0.2s ease;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: var(--black);
  color: var(--text);
}
body.cyberpunk-body {
  font-family: var(--font-mono);
  background: var(--black);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  padding-bottom: var(--fixed-bar-h);
  position: relative;
}

/* ===== 扫描线叠加 ===== */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0,0,0,0.18) 2px,
    rgba(0,0,0,0.18) 4px
  );
}

/* ===== 顶部 Glitch 条 ===== */
.glitch-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--magenta), var(--purple));
  z-index: 1000;
  animation: glitch-bar-anim 4s infinite;
}
@keyframes glitch-bar-anim {
  0%, 90%, 100% { opacity: 1; transform: scaleX(1); }
  92% { opacity: 0.3; transform: scaleX(0.95) translateX(4px); }
  94% { opacity: 1; transform: scaleX(1.02) translateX(-2px); }
  96% { opacity: 0.6; transform: scaleX(0.98); }
}

/* ===== 顶部主导航 ===== */
.site-nav {
  position: sticky;
  top: 2px;
  z-index: 900;
  background: rgba(13,13,18,0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  height: var(--nav-h);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.brand-logo-link { display: flex; align-items: center; }
.logo-img { height: 32px; width: auto; }
.brand-name {
  font-family: var(--font-hand);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--magenta);
  text-shadow: var(--glow-magenta);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.05em;
}
.brand-name:hover { color: var(--purple); text-shadow: var(--glow-purple); }

.nav-search {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 260px;
  margin-left: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(128,0,255,0.07);
}
.nav-search-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 6px 10px;
  flex: 1;
  min-width: 0;
}
.nav-search-input::placeholder { color: var(--text-dim); }
.nav-search-btn {
  background: transparent;
  border: none;
  color: var(--magenta);
  cursor: pointer;
  padding: 0 10px;
  font-size: 0.8rem;
  height: 36px;
  transition: color var(--transition);
  min-width: 36px;
}
.nav-search-btn:hover { color: var(--purple); text-shadow: var(--glow-purple); }

/* details/summary 导航 */
.nav-details {
  position: relative;
  flex-shrink: 0;
}
.nav-summary {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  list-style: none;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--purple);
  font-size: 0.85rem;
  user-select: none;
  min-height: 40px;
  transition: border-color var(--transition);
}
.nav-summary::-webkit-details-marker { display: none; }
.nav-summary:hover { border-color: var(--magenta); color: var(--magenta); }
.nav-toggle-icon { font-size: 1.1rem; }
.nav-details[open] .nav-summary { color: var(--magenta); border-color: var(--magenta); }

.nav-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: rgba(13,13,24,0.98);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  min-width: 180px;
  z-index: 999;
  list-style: none;
  padding: 6px 0;
  box-shadow: 0 4px 24px rgba(128,0,255,0.3);
  animation: menu-in 0.15s ease;
}
@keyframes menu-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.nav-menu li { border-bottom: 1px solid rgba(128,0,255,0.1); }
.nav-menu li:last-child { border-bottom: none; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.88rem;
  transition: background var(--transition), color var(--transition);
  min-height: 40px;
}
.nav-link:hover { background: rgba(128,0,255,0.15); color: var(--magenta); }
.nav-icon { color: var(--purple); font-size: 0.9rem; flex-shrink: 0; }

/* ===== 底部固定导航条 ===== */
.nav-fixed-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--fixed-bar-h);
  background: rgba(10,10,18,0.97);
  border-top: 1px solid var(--border-bright);
  z-index: 950;
  backdrop-filter: blur(12px);
  box-shadow: 0 -2px 20px rgba(128,0,255,0.25);
}
.nav-fixed-menu {
  display: flex;
  align-items: stretch;
  height: 100%;
  list-style: none;
  padding: 0;
  margin: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-fixed-menu::-webkit-scrollbar { display: none; }
.nav-fixed-menu li {
  flex: 1;
  min-width: 60px;
  display: flex;
}
.nav-fixed-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 100%;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.6rem;
  padding: 4px 2px;
  transition: color var(--transition);
  min-height: 40px;
  text-align: center;
}
.nav-fixed-link .nav-icon {
  font-size: 1.1rem;
  color: inherit;
  display: block;
}
.nav-fixed-text { font-size: 0.58rem; line-height: 1.2; }
.nav-fixed-link:hover,
.nav-fixed-link:focus {
  color: var(--magenta);
  text-shadow: 0 0 6px var(--magenta);
}

/* ===== article scroll-margin ===== */
article[id] { scroll-margin-top: calc(var(--nav-h) + 8px); }

/* ===== 主体 ===== */
.site-main { min-height: 80vh; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ===== Hero ===== */
.hero-section { padding: 24px 0 16px; }
.hero-article {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(128,0,255,0.08) 0%, rgba(255,0,255,0.04) 100%);
  min-height: 45vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px 24px;
  position: relative;
  z-index: 2;
}
.hero-media {
  flex: 0 0 45%;
  max-width: 45%;
}
.hero-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.hero-content {
  flex: 1;
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
.hero-eyebrow {
  font-family: var(--font-hand);
  font-size: 0.85rem;
  color: var(--purple);
  text-shadow: var(--glow-purple);
  letter-spacing: 0.15em;
}
.hero-h1 {
  font-family: var(--font-hand);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--magenta);
  text-shadow: var(--glow-magenta);
  line-height: 1.2;
  letter-spacing: 0.05em;
}
.hero-desc {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.6;
  max-width: 340px;
}
.hero-cta {
  display: inline-block;
  padding: 10px 24px;
  background: linear-gradient(90deg, var(--purple), var(--magenta));
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: var(--glow-purple);
  transition: box-shadow var(--transition), transform var(--transition);
  min-height: 44px;
  display: flex;
  align-items: center;
}
.hero-cta:hover {
  box-shadow: var(--glow-magenta);
  transform: translateY(-2px);
}
.hero-deco {
  position: absolute;
  right: -10px;
  bottom: -20px;
  z-index: 1;
  pointer-events: none;
  user-select: none;
}
.hero-deco-num {
  font-family: var(--font-hand);
  font-size: clamp(80px, 18vw, 160px);
  font-weight: 700;
  color: rgba(128,0,255,0.08);
  line-height: 1;
  letter-spacing: -0.05em;
}

/* ===== Glitch 文字效果 ===== */
.glitch-text {
  position: relative;
  display: inline-block;
}
.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.glitch-text::before {
  color: var(--magenta);
  left: 2px;
  animation: glitch-before 5s infinite;
  clip-path: polygon(0 30%, 100% 30%, 100% 50%, 0 50%);
}
.glitch-text::after {
  color: var(--purple);
  left: -2px;
  animation: glitch-after 5s infinite;
  clip-path: polygon(0 60%, 100% 60%, 100% 75%, 0 75%);
}
@keyframes glitch-before {
  0%, 88%, 100% { transform: none; opacity: 0; }
  90% { transform: skewX(-6deg) translateX(3px); opacity: 0.8; }
  92% { transform: skewX(4deg) translateX(-2px); opacity: 0.6; }
  94% { transform: none; opacity: 0; }
}
@keyframes glitch-after {
  0%, 88%, 100% { transform: none; opacity: 0; }
  91% { transform: skewX(5deg) translateX(-3px); opacity: 0.7; }
  93% { transform: skewX(-3deg) translateX(2px); opacity: 0.5; }
  95% { transform: none; opacity: 0; }
}

/* ===== 内容布局：aside + 主内容 ===== */
.content-layout {
  display: flex;
  gap: 24px;
  padding: 24px 0 40px;
  align-items: flex-start;
}

/* ===== 侧边栏 (左) ===== */
.site-aside {
  flex: 0 0 220px;
  width: 220px;
  position: sticky;
  top: calc(var(--nav-h) + 16px);
  background: rgba(10,10,18,0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.aside-eyebrow {
  display: block;
  font-size: 0.7rem;
  color: var(--purple);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.aside-title {
  font-family: var(--font-hand);
  font-size: 1rem;
  color: var(--magenta);
  text-shadow: 0 0 6px rgba(255,0,255,0.4);
  margin-top: -8px;
}
.aside-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.aside-link {
  display: block;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.82rem;
  padding: 6px 8px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  min-height: 32px;
  display: flex;
  align-items: center;
}
.aside-link:hover {
  color: var(--magenta);
  border-color: var(--magenta);
  background: rgba(255,0,255,0.07);
}
.aside-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(128,0,255,0.12);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.badge-label {
  font-size: 0.78rem;
  color: var(--neon-green);
  font-family: var(--font-mono);
  text-shadow: 0 0 6px var(--neon-green);
}
.badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: pulse-dot 1.5s infinite;
  margin-left: auto;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}
.aside-notice {
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.5;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ===== 主内容 ===== */
.content-main { flex: 1; min-width: 0; }

.page-content-section {
  background: transparent;
}
.page-content-article {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
}

/* ===== 正文内容样式 ===== */
.page-content-article h2,
.page-content-article h3 {
  font-family: var(--font-hand);
  color: var(--magenta);
  text-shadow: 0 0 8px rgba(255,0,255,0.35);
  margin: 2em 0 0.6em;
  line-height: 1.3;
}
.page-content-article h2 { font-size: 1.4rem; }
.page-content-article h3 { font-size: 1.15rem; color: var(--purple); }

.page-content-article p {
  margin: 0 0 1em;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
}
.page-content-article ul,
.page-content-article ol {
  margin: 0 0 1em 1.4em;
  line-height: 1.7;
}
.page-content-article li { margin-bottom: 0.3em; }
.page-content-article a {
  color: var(--purple);
  text-decoration: underline;
  text-decoration-color: rgba(128,0,255,0.4);
  transition: color var(--transition);
}
.page-content-article a:hover { color: var(--magenta); }
.page-content-article strong { color: var(--magenta); font-weight: 700; }
.page-content-article em { color: var(--purple); font-style: italic; }

.page-content-article article {
  border-top: 1px solid var(--border);
  padding-top: 32px;
  margin-top: 32px;
}
.page-content-article article:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

/* small 眉题紧邻 h2/h3 */
.page-content-article small {
  display: block;
  font-size: 0.7rem;
  color: var(--purple);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--darker);
  border-top: 1px solid var(--border-bright);
  padding: 32px 16px 24px;
  text-align: center;
}
.footer-brand-section {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.footer-brand-name {
  font-family: var(--font-hand);
  font-size: clamp(2rem, 8vw, 4rem);
  font-weight: 700;
  color: transparent;
  background: linear-gradient(90deg, var(--purple), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  letter-spacing: 0.05em;
  line-height: 1;
}
.footer-copy-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
}
.footer-note {
  font-size: 0.76rem;
  color: rgba(136,136,136,0.7);
  line-height: 1.5;
}

/* ===== Stagger 动画 ===== */
.aside-nav-list li {
  opacity: 0;
  transform: translateX(-10px);
  animation: stagger-in 0.3s ease forwards;
}
.aside-nav-list li:nth-child(1) { animation-delay: 0.05s; }
.aside-nav-list li:nth-child(2) { animation-delay: 0.1s; }
.aside-nav-list li:nth-child(3) { animation-delay: 0.15s; }
.aside-nav-list li:nth-child(4) { animation-delay: 0.2s; }
.aside-nav-list li:nth-child(5) { animation-delay: 0.25s; }
.aside-nav-list li:nth-child(6) { animation-delay: 0.3s; }
.aside-nav-list li:nth-child(7) { animation-delay: 0.35s; }
@keyframes stagger-in {
  to { opacity: 1; transform: translateX(0); }
}

/* ===== 卡片（正文内可能有） ===== */
.page-content-article .card {
  border: 1px solid var(--border);
  border-bottom: 3px solid var(--purple);
  border-radius: var(--radius);
  padding: 16px;
  margin: 16px 0;
  background: rgba(128,0,255,0.05);
  transition: border-bottom-color var(--transition), transform var(--transition);
}
.page-content-article .card:hover {
  border-bottom-color: var(--magenta);
  transform: translateY(-2px);
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .hero-inner { flex-direction: column; padding: 20px 16px; }
  .hero-media { flex: none; max-width: 100%; width: 100%; }
  .hero-content { text-align: left; align-items: flex-start; }
  .hero-desc { max-width: 100%; }
  .hero-h1 { font-size: 1.5rem; }
  .hero-deco-num { font-size: 80px; }
  .content-layout { flex-direction: column; }
  .site-aside {
    position: static;
    width: 100%;
    flex: none;
    order: 1;
  }
  .content-main { order: 2; }
  .nav-fixed-text { display: none; }
  .nav-fixed-link .nav-icon { font-size: 1.3rem; }
  .nav-fixed-bar { height: 50px; }
  body.cyberpunk-body { padding-bottom: 50px; }
  .site-nav { gap: 8px; padding: 0 10px; }
  .nav-search { max-width: 140px; }
  article[id] { scroll-margin-top: calc(var(--nav-h) + 4px); }
}

@media (max-width: 480px) {
  .wrap { padding: 0 10px; }
  .hero-article { min-height: 40vh; }
  .hero-h1 { font-size: 1.3rem; }
  .brand-name { font-size: 1rem; }
  .nav-search { display: none; }
  .footer-brand-name { font-size: 2rem; }
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}