@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,400;0,500;1,400&display=swap');

/* ===== CSS 变量 ===== */
:root {
  --red: #ff0000;
  --pink: #ff006e;
  --dark: #1a1a2e;
  --darker: #0d0d1a;
  --neon-cyan: #00ffff;
  --neon-blue: #0080ff;
  --text: #e8e8f0;
  --text-dim: #a0a0c0;
  --card-bg: #16213e;
  --border: #ff006e33;
  --sidenav-w: 220px;
  --radius: 28px;
  --font: 'JetBrains Mono', 'Courier New', Courier, monospace;
}

/* ===== 全局重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  background: var(--darker);
  color: var(--text);
  overflow-x: hidden;
  min-height: 100vh;
}

/* CRT 扫描线叠层 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.07) 2px,
    rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--pink); text-decoration: none; transition: color .2s, text-shadow .2s; }
a:hover { color: var(--red); text-shadow: 0 0 8px var(--red); }
ul, ol, menu { list-style: none; }
h1,h2,h3,h4 { font-family: var(--font); font-weight: 500; line-height: 1.3; }

/* ===== 布局骨架 ===== */
.page-wrap {
  display: flex;
  min-height: 100vh;
}

/* ===== 侧边导航 ===== */
.sidenav {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidenav-w);
  background: var(--dark);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  padding: 1.5rem 1rem;
  z-index: 200;
  overflow-y: auto;
}
.sidenav::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--pink), var(--red), transparent);
  opacity: .5;
}

.sidenav-brand {
  display: flex;
  justify-content: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.brand-icon-text {
  font-size: 2rem;
  font-weight: 500;
  color: var(--red);
  text-shadow: 0 0 12px var(--red), 0 0 24px var(--pink);
  letter-spacing: .1em;
}
.brand-icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.sidenav-search { padding: .4rem 0; }
.nav-search {
  width: 100%;
  background: var(--darker);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font);
  font-size: .85rem;
  padding: .5rem .8rem;
  outline: none;
  transition: border-color .2s;
}
.nav-search:focus { border-color: var(--pink); box-shadow: 0 0 6px var(--pink); }
.nav-search::placeholder { color: var(--text-dim); }

.nav-details { width: 100%; }
.nav-summary {
  list-style: none;
  cursor: pointer;
  font-size: .75rem;
  letter-spacing: .15em;
  color: var(--pink);
  text-transform: uppercase;
  padding: .4rem 0;
  user-select: none;
  display: flex;
  align-items: center;
  gap: .5rem;
  min-height: 40px;
}
.nav-summary::-webkit-details-marker { display: none; }
.nav-summary::before {
  content: '▶';
  font-size: .6rem;
  transition: transform .2s;
}
details[open] .nav-summary::before { transform: rotate(90deg); }

.nav-menu { margin-top: .5rem; display: flex; flex-direction: column; gap: .3rem; }
.nav-menu li a {
  display: block;
  padding: .55rem .8rem;
  font-size: .82rem;
  color: var(--text-dim);
  border-radius: 8px;
  border-left: 2px solid transparent;
  transition: all .2s;
  line-height: 1.4;
  min-height: 40px;
  display: flex;
  align-items: center;
}
.nav-menu li a:hover {
  color: var(--text);
  background: rgba(255,0,110,.08);
  border-left-color: var(--pink);
  text-shadow: none;
}

/* ===== 内容区 ===== */
.content-area {
  margin-left: var(--sidenav-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== HERO（首页）===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dark);
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .35;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--darker) 0%, rgba(26,26,46,.7) 50%, rgba(255,0,110,.15) 100%);
}
.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 2rem 1.5rem;
  max-width: 700px;
}
.hero-eyebrow {
  font-size: .8rem;
  letter-spacing: .25em;
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan);
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.scan-text {
  animation: scanPulse 3s ease-in-out infinite;
}
@keyframes scanPulse {
  0%,100% { opacity: 1; }
  50% { opacity: .6; }
}
.hero-h1 {
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 500;
  color: var(--text);
  text-shadow: 0 0 20px var(--red), 0 0 40px var(--pink);
  margin-bottom: 1.2rem;
  letter-spacing: .05em;
}
.hero-sub {
  font-size: 1rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
  line-height: 1.8;
}
.hero-slice {
  position: absolute;
  bottom: -1px;
  left: 0; right: 0;
  height: 80px;
  background: var(--darker);
  clip-path: polygon(0 60%, 100% 0%, 100% 100%, 0 100%);
}

/* Hero 色带 */
.hero::after {
  content: '';
  position: absolute;
  left: -10%;
  top: 30%;
  width: 120%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--red), var(--pink), transparent);
  transform: rotate(-3deg);
  opacity: .6;
}

/* ===== 霓虹按钮 ===== */
.neon-btn {
  display: inline-block;
  padding: .75rem 2rem;
  border: 2px solid var(--red);
  border-radius: 8px;
  color: var(--red);
  font-family: var(--font);
  font-size: .9rem;
  letter-spacing: .1em;
  text-shadow: 0 0 8px var(--red);
  box-shadow: 0 0 12px var(--red), inset 0 0 12px rgba(255,0,0,.1);
  transition: all .25s;
  min-height: 44px;
  align-items: center;
}
.neon-btn:hover {
  background: var(--red);
  color: #fff;
  box-shadow: 0 0 24px var(--red), 0 0 48px var(--pink);
  text-shadow: none;
}

/* ===== Glitch 效果 ===== */
.glitch { position: relative; }
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0; top: 0;
  width: 100%;
  overflow: hidden;
}
.glitch::before {
  color: var(--neon-cyan);
  animation: glitch1 4s infinite linear;
  clip-path: polygon(0 0, 100% 0, 100% 40%, 0 40%);
  opacity: .7;
}
.glitch::after {
  color: var(--pink);
  animation: glitch2 4s infinite linear;
  clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
  opacity: .7;
}
@keyframes glitch1 {
  0%,90%,100% { transform: none; opacity: 0; }
  92% { transform: skewX(-5deg) translateX(-3px); opacity: .7; }
  94% { transform: skewX(3deg) translateX(2px); opacity: .7; }
  96% { transform: none; opacity: 0; }
}
@keyframes glitch2 {
  0%,85%,100% { transform: none; opacity: 0; }
  87% { transform: skewX(4deg) translateX(3px); opacity: .7; }
  89% { transform: skewX(-2deg) translateX(-2px); opacity: .7; }
  91% { transform: none; opacity: 0; }
}

/* ===== 主内容区 ===== */
.main-content {
  flex: 1;
  padding: 3rem 2rem 2rem;
}
.wrap { max-width: 860px; }

/* ===== 内页头部 ===== */
.inner-header {
  padding: 3rem 2rem 1.5rem;
  background: linear-gradient(180deg, var(--dark) 0%, var(--darker) 100%);
  border-bottom: 1px solid var(--border);
}
.about-header { text-align: center; }

.inner-h1 {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  color: var(--text);
  text-shadow: 0 0 16px var(--red);
  margin: .8rem 0;
  letter-spacing: .04em;
}
.inner-desc {
  color: var(--text-dim);
  font-size: .95rem;
  max-width: 680px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  font-size: .8rem;
  color: var(--text-dim);
  margin-bottom: .8rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .3rem;
}
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--pink); }
.bc-sep { color: var(--pink); opacity: .6; }

/* ===== 区块标题 ===== */
.section-title {
  font-size: 1.1rem;
  letter-spacing: .12em;
  color: var(--pink);
  text-shadow: 0 0 8px var(--pink);
  text-transform: uppercase;
  margin-bottom: .5rem;
}
hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: .5rem 0 1.5rem;
  background: linear-gradient(90deg, var(--red), var(--pink), transparent);
  height: 1px;
  border: none;
  opacity: .5;
}

/* ===== 分类列表（首页）===== */
.section-cats { margin-bottom: 3rem; }
.cat-list { display: flex; flex-direction: column; gap: .6rem; }
.cat-item {}
.cat-link {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .9rem 1.2rem;
  background: var(--card-bg);
  border-radius: 16px;
  border: 1px solid var(--border);
  color: var(--text);
  transition: all .25s;
  min-height: 44px;
}
.cat-link:hover {
  border-color: var(--pink);
  box-shadow: 0 0 16px rgba(255,0,110,.2);
  text-shadow: none;
  color: var(--text);
}
.cat-arrow { color: var(--red); font-size: 1.1rem; text-shadow: 0 0 6px var(--red); }
.cat-name { font-size: .95rem; letter-spacing: .04em; }

/* ===== 卡片网格（首页）===== */
.section-featured { margin-bottom: 3rem; }
.page-content { margin-bottom: 2rem; color: var(--text-dim); line-height: 1.8; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.4rem;
}
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(255,0,110,.25);
}
.card-link { display: block; color: var(--text); }
.card-img { overflow: hidden; border-radius: var(--radius) var(--radius) 0 0; }
.card-thumb { width: 100%; height: 160px; object-fit: cover; }
.card-body { padding: 1.2rem 1.4rem; }
.card-tag {
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--neon-cyan);
  text-shadow: 0 0 6px var(--neon-cyan);
  text-transform: uppercase;
  display: block;
  margin-bottom: .5rem;
}
.card-title {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: .5rem;
  line-height: 1.4;
}
.card-desc {
  font-size: .85rem;
  color: var(--text-dim);
  margin-bottom: .8rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-date { font-size: .78rem; color: var(--text-dim); }
.card-date time { color: var(--pink); }

/* ===== 文章列表（栏目页）===== */
.article-list { display: flex; flex-direction: column; gap: 1rem; }
.article-list-item {
  background: var(--card-bg);
  border-radius: 16px;
  border: 1px solid var(--border);
  transition: border-color .2s, box-shadow .2s;
}
.article-list-item:hover {
  border-color: var(--pink);
  box-shadow: 0 4px 20px rgba(255,0,110,.15);
}
.article-list-link {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  color: var(--text);
}
.list-thumb-wrap { flex-shrink: 0; }
.list-thumb { width: 80px; height: 60px; object-fit: cover; border-radius: 8px; }
.list-info { flex: 1; }
.list-num {
  font-size: .75rem;
  color: var(--red);
  text-shadow: 0 0 6px var(--red);
  letter-spacing: .08em;
  display: block;
  margin-bottom: .3rem;
}
.list-title { font-size: 1rem; color: var(--text); margin-bottom: .3rem; }
.list-desc { font-size: .85rem; color: var(--text-dim); }
.list-date { display: block; margin-top: .4rem; font-size: .78rem; color: var(--pink); }

/* ===== 侧边 aside ===== */
.global-aside {
  width: 240px;
  padding: 2rem 1.5rem;
  position: sticky;
  top: 2rem;
  align-self: flex-start;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 2rem;
}

/* 内页正文+aside 布局 */
.inner-page .content-area {
  display: flex;
  flex-direction: column;
}
.inner-page .main-content {
  flex: 1;
}

/* 在中等屏幕以上让 main + aside 横排 */
@media (min-width: 900px) {
  .inner-page .content-area .main-content,
  .inner-page .content-area .global-aside {
    float: left;
  }
  .inner-page .content-area {
    display: block;
  }
  .inner-page .main-content {
    width: calc(100% - 300px);
  }
  .global-aside {
    width: 260px;
    float: right;
    margin-top: 3rem;
  }
  .site-footer { clear: both; }
}

.aside-title {
  font-size: .8rem;
  letter-spacing: .15em;
  color: var(--pink);
  text-shadow: 0 0 6px var(--pink);
  text-transform: uppercase;
  margin-bottom: .4rem;
}
.aside-links { display: flex; flex-direction: column; gap: .4rem; }
.aside-links li a {
  display: block;
  padding: .45rem .6rem;
  font-size: .82rem;
  color: var(--text-dim);
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: all .2s;
  min-height: 40px;
  display: flex;
  align-items: center;
}
.aside-links li a:hover {
  color: var(--text);
  background: rgba(255,0,110,.07);
  border-left-color: var(--red);
  text-shadow: none;
}
.tag-links li a {
  border-radius: 20px;
  border: 1px solid var(--border);
  border-left: 1px solid var(--border);
  padding: .4rem 1rem;
}
.tag-links li a:hover { border-color: var(--pink); }

/* ===== 正文排版 ===== */
.prose {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text);
  max-width: 720px;
}
.prose h2 { color: var(--pink); margin: 2rem 0 .6rem; font-size: 1.15rem; text-shadow: 0 0 6px var(--pink); }
.prose h3 { color: var(--neon-cyan); margin: 1.5rem 0 .5rem; font-size: 1rem; }
.prose p { margin-bottom: 1.2rem; }
.prose a { color: var(--pink); border-bottom: 1px solid rgba(255,0,110,.3); }
.prose a:hover { border-bottom-color: var(--red); }
.prose ul, .prose ol { margin: 1rem 0 1rem 1.5rem; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: .4rem; }
.prose blockquote {
  border-left: 3px solid var(--red);
  padding: .8rem 1.2rem;
  margin: 1.5rem 0;
  background: rgba(255,0,0,.06);
  border-radius: 0 8px 8px 0;
  color: var(--text-dim);
}
.prose code {
  background: rgba(255,0,110,.1);
  border: 1px solid var(--border);
  padding: .1em .4em;
  border-radius: 4px;
  font-family: var(--font);
  font-size: .9em;
  color: var(--neon-cyan);
}
.prose pre {
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.prose pre code { background: none; border: none; padding: 0; }

/* ===== 文章页 ===== */
.art-hero { overflow: hidden; max-height: 360px; }
.art-hero-img { width: 100%; height: 360px; object-fit: cover; }
.art-meta { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: .6rem; }
.art-date { font-size: .8rem; color: var(--text-dim); }
.art-date time { color: var(--pink); }
.art-section { margin-bottom: 3rem; }
.art-prose { padding-top: 1.5rem; }
.art-related { margin-bottom: 3rem; }

.related-list { display: flex; flex-direction: column; gap: .7rem; }
.related-list li a {
  display: flex;
  flex-direction: column;
  padding: .8rem 1rem;
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: .9rem;
  transition: all .2s;
}
.related-list li a:hover { border-color: var(--pink); text-shadow: none; }
.related-list li small { color: var(--text-dim); font-size: .8rem; margin-top: .25rem; }

/* ===== 标签页 ===== */
.tag-list { display: flex; flex-direction: column; gap: .8rem; }
.tag-item {
  background: var(--card-bg);
  border-radius: 14px;
  border: 1px solid var(--border);
  transition: border-color .2s;
}
.tag-item:hover { border-color: var(--red); }
.tag-item-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.4rem;
  color: var(--text);
  min-height: 44px;
}
.tag-num {
  font-size: .8rem;
  color: var(--red);
  text-shadow: 0 0 6px var(--red);
  letter-spacing: .08em;
  flex-shrink: 0;
  width: 28px;
}
.tag-item-body { flex: 1; }
.tag-item-title { font-size: .95rem; color: var(--text); margin-bottom: .2rem; }
.tag-item-date { font-size: .78rem; color: var(--pink); }

/* ===== About 快速导航 ===== */
.about-logo-wrap { margin: 1rem auto; width: fit-content; }
.about-logo { max-width: 100px; border-radius: 12px; }
.about-nav-list { display: flex; flex-direction: column; gap: .7rem; }
.about-nav-list li a {
  display: flex;
  flex-direction: column;
  padding: .9rem 1.1rem;
  background: var(--card-bg);
  border-radius: 14px;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: .9rem;
  transition: all .2s;
}
.about-nav-list li a:hover { border-color: var(--pink); text-shadow: none; }
.about-nav-list li small { color: var(--text-dim); font-size: .8rem; margin-top: .2rem; }

/* ===== 页脚 ===== */
.site-footer {
  padding: 3rem 2rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.footer-brand {
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  font-weight: 500;
  color: var(--red);
  text-shadow: 0 0 20px var(--red), 0 0 40px var(--pink);
  letter-spacing: .08em;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.footer-copy {
  display: block;
  font-size: .78rem;
  color: var(--text-dim);
  letter-spacing: .06em;
}
.footer-copy a { color: var(--text-dim); margin: 0 .5rem; }
.footer-copy a:hover { color: var(--pink); }

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ===== Parallax hint ===== */
.hero-content { transition: transform .1s linear; }

/* ===== 移动端 ===== */
@media (max-width: 768px) {
  :root { --sidenav-w: 0px; }

  .sidenav {
    position: fixed;
    left: -240px;
    width: 240px;
    transition: left .3s ease;
    z-index: 300;
  }
  .sidenav.open { left: 0; }

  .content-area { margin-left: 0; }

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

  .inner-header { padding: 2rem 1rem 1rem; }
  .main-content { padding: 1.5rem 1rem; }
  .global-aside { display: none; }

  .card-grid { grid-template-columns: 1fr; }

  .hero-h1 { font-size: 1.5rem; }

  .footer-brand { font-size: 1.8rem; }

  .wrap { max-width: 100%; }
}

@media (min-width: 769px) {
  .mobile-nav-toggle { display: none !important; }
}

/* 汉堡按钮 */
.mobile-nav-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 400;
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .6rem;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}
.mobile-nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--pink);
  box-shadow: 0 0 4px var(--pink);
  transition: all .2s;
}

/* 遮罩 */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 250;
}
.nav-overlay.active { display: block; }

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .glitch::before, .glitch::after { display: none; }
  .scan-text { animation: none; }
}