@import url('https://fonts.googleapis.com/css2?family=Didact+Gothic&family=Poiret+One&display=swap');

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-bg: #0d0d0d;
  --c-primary: #8000ff;
  --c-secondary: #ff00ff;
  --c-text: #e0e0e0;
  --c-text-dim: #888;
  --c-border: #8000ff;
  --c-border-alt: #ff00ff;
  --c-green: #00ff88;
  --sidebar-w: 220px;
  --font-display: 'Poiret One', 'Didact Gothic', sans-serif;
  --font-body: 'Didact Gothic', monospace, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: var(--c-bg);
  color: var(--c-text);
}

body.cyberpunk-body {
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  background: var(--c-bg);
  overflow-x: hidden;
  position: relative;
}

/* ===== 扫描线叠层 ===== */
.scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.18) 3px,
    rgba(0,0,0,0.18) 4px
  );
  mix-blend-mode: multiply;
}

.glitch-overlay {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 8999;
  background: radial-gradient(ellipse at 50% 0%, rgba(128,0,255,0.07) 0%, transparent 70%);
}

/* ===== 无障碍 ===== */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ===== 侧边导航 ===== */
.sidebar-nav {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: rgba(13,13,13,0.97);
  border-right: 1px solid var(--c-primary);
  display: flex;
  flex-direction: column;
  gap: 0;
  z-index: 200;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-nav::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 100%;
  background: linear-gradient(to bottom, var(--c-primary), var(--c-secondary), var(--c-primary));
  animation: sideline-pulse 3s linear infinite;
}

@keyframes sideline-pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.nav-brand {
  padding: 20px 16px 12px;
  border-bottom: 1px solid rgba(128,0,255,0.3);
}

.brand-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  min-height: 48px;
}

.site-logo-img {
  max-width: 48px;
  max-height: 48px;
  object-fit: contain;
}

.logo-text-mark {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--c-primary);
  text-shadow: 0 0 12px var(--c-primary), 0 0 24px var(--c-secondary);
  letter-spacing: 2px;
}

/* 搜索框 */
.nav-search {
  position: relative;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(128,0,255,0.2);
}

.search-input {
  width: 100%;
  background: rgba(128,0,255,0.08);
  border: 1px solid rgba(128,0,255,0.5);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 30px 8px 10px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input::placeholder { color: var(--c-text-dim); }
.search-input:focus {
  border-color: var(--c-secondary);
  box-shadow: 0 0 8px rgba(255,0,255,0.4);
}

.search-icon {
  position: absolute;
  right: 22px; top: 50%;
  transform: translateY(-50%);
  color: var(--c-primary);
  font-size: 0.85rem;
  pointer-events: none;
}

/* details/summary 导航 */
.nav-details {
  flex: 1;
  padding: 0;
}

.nav-summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-secondary);
  letter-spacing: 2px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,0,255,0.2);
  user-select: none;
  min-height: 44px;
}

.nav-summary::-webkit-details-marker { display: none; }

.nav-toggle-icon {
  font-size: 0.6rem;
  transition: transform var(--transition);
}

.nav-details[open] .nav-toggle-icon {
  transform: rotate(90deg);
  color: var(--c-primary);
}

.nav-menu {
  list-style: none;
  padding: 8px 0;
}

.nav-menu li {
  border-bottom: 1px solid rgba(128,0,255,0.1);
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--c-text);
  text-decoration: none;
  min-height: 44px;
  transition: color var(--transition), background var(--transition), padding-left var(--transition);
  position: relative;
}

.nav-link::before {
  content: '▷';
  font-size: 0.6rem;
  color: var(--c-primary);
  margin-right: 8px;
  opacity: 0;
  transition: opacity var(--transition);
}

.nav-link:hover {
  color: var(--c-secondary);
  background: rgba(128,0,255,0.1);
  padding-left: 26px;
}

.nav-link:hover::before { opacity: 1; }

/* HUD 装饰 */
.nav-hud-decor {
  padding: 12px 16px;
  border-top: 1px solid rgba(128,0,255,0.2);
  margin-top: auto;
}

.hud-line {
  display: block;
  height: 1px;
  background: linear-gradient(to right, var(--c-primary), transparent);
  margin-bottom: 6px;
}

.hud-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(128,0,255,0.5);
  letter-spacing: 2px;
}

/* ===== 页面主体偏移 ===== */
.page-wrapper {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Hero ===== */
.site-hero {
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-bottom: 1px solid var(--c-primary);
  background:
    linear-gradient(135deg, rgba(128,0,255,0.12) 0%, transparent 50%, rgba(255,0,255,0.08) 100%),
    var(--c-bg);
  position: relative;
  overflow: hidden;
  padding: 32px 24px 40px;
}

.site-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 80px,
    rgba(128,0,255,0.04) 80px,
    rgba(128,0,255,0.04) 81px
  );
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  width: 100%;
}

/* h1 放最前保证首屏可见 */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 4rem);
  font-weight: 400;
  color: #fff;
  letter-spacing: 4px;
  line-height: 1.2;
  text-shadow:
    0 0 20px var(--c-primary),
    0 0 40px rgba(128,0,255,0.5),
    0 0 2px #fff;
  margin-bottom: 14px;
  position: relative;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 3px;
  color: var(--c-secondary);
  border: 1px solid var(--c-secondary);
  padding: 4px 14px;
  margin-bottom: 16px;
  text-shadow: 0 0 8px var(--c-secondary);
  box-shadow: 0 0 12px rgba(255,0,255,0.2), inset 0 0 8px rgba(255,0,255,0.05);
}

/* Glitch 动效 */
.glitch-text {
  animation: glitch-anim 6s infinite;
}

@keyframes glitch-anim {
  0%, 90%, 100% { transform: none; text-shadow: 0 0 20px var(--c-primary), 0 0 40px rgba(128,0,255,0.5), 0 0 2px #fff; }
  91% { transform: skewX(-3deg) translateX(2px); text-shadow: -3px 0 var(--c-secondary), 3px 0 var(--c-primary); }
  92% { transform: skewX(3deg) translateX(-2px); text-shadow: 3px 0 var(--c-secondary), -3px 0 var(--c-primary); }
  93% { transform: none; text-shadow: 0 0 20px var(--c-primary), 0 0 40px rgba(128,0,255,0.5); }
  94% { transform: skewX(-1deg); clip-path: inset(30% 0 50% 0); text-shadow: 2px 0 var(--c-secondary); }
  95% { transform: none; clip-path: none; text-shadow: 0 0 20px var(--c-primary); }
}

.hero-sub {
  font-size: 0.95rem;
  color: var(--c-text-dim);
  letter-spacing: 1px;
  margin-bottom: 24px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-decor {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.decor-bar {
  display: block;
  width: 60px; height: 1px;
  background: linear-gradient(to right, transparent, var(--c-primary));
}

.decor-bar:last-child {
  background: linear-gradient(to left, transparent, var(--c-secondary));
}

.decor-dot {
  display: block;
  width: 6px; height: 6px;
  background: var(--c-secondary);
  box-shadow: 0 0 8px var(--c-secondary);
  transform: rotate(45deg);
}

/* ===== 内容布局 ===== */
.content-layout {
  display: flex;
  flex: 1;
  gap: 0;
  align-items: flex-start;
}

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

.page-article {
  padding: 40px 32px;
}

/* 正文内容样式 */
.page-content-wrap h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--c-secondary);
  letter-spacing: 3px;
  margin: 48px 0 8px;
  text-shadow: 0 0 12px rgba(255,0,255,0.4);
  border-left: 3px solid var(--c-primary);
  padding-left: 14px;
  scroll-margin-top: 24px;
}

.page-content-wrap h3 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--c-primary);
  letter-spacing: 2px;
  margin: 28px 0 8px;
  text-shadow: 0 0 8px rgba(128,0,255,0.4);
}

.page-content-wrap p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
  margin-bottom: 14px;
  max-width: 72ch;
}

.page-content-wrap ul,
.page-content-wrap ol {
  margin: 12px 0 20px 20px;
  color: var(--c-text);
}

.page-content-wrap li {
  line-height: 1.7;
  margin-bottom: 6px;
  font-size: 1rem;
}

.page-content-wrap a {
  color: var(--c-secondary);
  text-decoration: underline;
  text-decoration-color: rgba(255,0,255,0.4);
  transition: color var(--transition), text-shadow var(--transition);
}

.page-content-wrap a:hover {
  color: var(--c-primary);
  text-shadow: 0 0 8px var(--c-primary);
}

/* 内容区 div 分隔 */
.page-content-wrap div {
  padding: 32px 0;
  border-bottom: 1px solid rgba(128,0,255,0.15);
  scroll-margin-top: 24px;
}

.page-content-wrap div:last-child {
  border-bottom: none;
}

/* ===== 侧边栏（右侧） ===== */
.sidebar-right {
  width: 220px;
  flex-shrink: 0;
  padding: 32px 16px;
  border-left: 1px solid rgba(128,0,255,0.3);
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.aside-block {
  border: 1px solid rgba(128,0,255,0.35);
  padding: 16px 14px;
  position: relative;
}

.aside-block::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px;
  width: 8px; height: 8px;
  border-top: 2px solid var(--c-secondary);
  border-left: 2px solid var(--c-secondary);
}

.aside-block::after {
  content: '';
  position: absolute;
  bottom: -1px; right: -1px;
  width: 8px; height: 8px;
  border-bottom: 2px solid var(--c-secondary);
  border-right: 2px solid var(--c-secondary);
}

.aside-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--c-secondary);
  text-shadow: 0 0 8px rgba(255,0,255,0.4);
  margin-bottom: 4px;
}

.subtitle {
  font-size: 0.72rem;
  color: var(--c-text-dim);
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.aside-status-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.aside-status-list li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--c-green);
  box-shadow: 0 0 6px var(--c-green);
}

.aside-quick-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.aside-link {
  display: block;
  font-size: 0.78rem;
  color: var(--c-text-dim);
  text-decoration: none;
  padding: 5px 0;
  border-bottom: 1px solid rgba(128,0,255,0.1);
  transition: color var(--transition), padding-left var(--transition);
  min-height: 32px;
  line-height: 22px;
}

.aside-link:hover {
  color: var(--c-primary);
  padding-left: 6px;
}

/* HUD 面板 */
.aside-hud { background: rgba(0,0,0,0.4); }

.hud-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hud-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.4;
}

.hud-key { color: rgba(128,0,255,0.7); letter-spacing: 2px; }
.hud-val { color: var(--c-green); text-shadow: 0 0 6px var(--c-green); }

.hud-blink {
  animation: blink-bar 1.5s steps(2) infinite;
}

@keyframes blink-bar {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ===== 页脚 ===== */
.site-footer {
  border-top: 1px solid var(--c-primary);
  background: rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-brand-section {
  padding: 28px 24px 8px;
  width: 100%;
  text-align: center;
  border-bottom: 1px solid rgba(128,0,255,0.2);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 400;
  color: var(--c-primary);
  letter-spacing: 8px;
  text-shadow: 0 0 30px var(--c-primary), 0 0 60px rgba(128,0,255,0.3);
  line-height: 1.2;
}

.footer-copy-section {
  padding: 16px 24px 20px;
  text-align: center;
  width: 100%;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-text-dim);
  letter-spacing: 1px;
}

.footer-icp {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: rgba(128,0,255,0.5);
  margin-top: 4px;
  letter-spacing: 1px;
}

/* ===== div 锚点偏移 ===== */
div[id] {
  scroll-margin-top: 16px;
}

/* ===== 滚动揭示动效 ===== */
@media (prefers-reduced-motion: no-preference) {
  .page-content-wrap div {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  .page-content-wrap div.revealed {
    opacity: 1;
    transform: none;
  }

  .aside-block {
    opacity: 0;
    transform: translateX(16px);
    transition: opacity 0.4s ease, transform 0.4s ease;
  }

  .aside-block.revealed {
    opacity: 1;
    transform: none;
  }

  .aside-block:nth-child(2) { transition-delay: 0.1s; }
  .aside-block:nth-child(3) { transition-delay: 0.2s; }
}

@media (prefers-reduced-motion: reduce) {
  .glitch-text { animation: none; }
  .hud-blink { animation: none; }
  .sidebar-nav::after { animation: none; }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .sidebar-right {
    display: none;
  }

  .content-layout {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }

  .sidebar-nav {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--c-primary);
    flex-direction: column;
  }

  .sidebar-nav::after { display: none; }

  .nav-brand { padding: 12px 16px; }

  .page-wrapper {
    margin-left: 0;
  }

  .site-hero {
    min-height: auto;
    padding: 20px 16px 28px;
  }

  .hero-title {
    font-size: clamp(1.5rem, 8vw, 2.4rem);
    letter-spacing: 2px;
    margin-bottom: 10px;
  }

  .hero-badge {
    margin-bottom: 12px;
  }

  .page-article {
    padding: 24px 16px;
  }

  .footer-brand-name {
    font-size: clamp(1.6rem, 10vw, 3rem);
    letter-spacing: 4px;
  }

  .nav-details { flex: none; }

  .nav-summary {
    min-height: 48px;
    padding: 14px 16px;
  }

  .nav-link {
    min-height: 48px;
    padding: 14px 20px;
  }

  .search-input { font-size: 16px; }
}

@media (max-width: 480px) {
  .hero-badge { font-size: 0.62rem; letter-spacing: 2px; }
  .hero-title { font-size: clamp(1.4rem, 7vw, 2rem); }
  .page-content-wrap h2 { font-size: 1.2rem; }
  .page-content-wrap p { font-size: 1rem; }
}