@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Orbitron:wght@700;900&display=swap');

/* ===== 自定义属性 ===== */
:root {
  --bg: #0d0d0d;
  --pink: #ff2d78;
  --green: #00ff41;
  --bg2: #111318;
  --bg3: #181c24;
  --surface: #1a1f2e;
  --surface2: #222840;
  --text: #e8eaf0;
  --text-muted: #7a8099;
  --text-dim: #4a5068;
  --pink-dim: rgba(255,45,120,0.15);
  --green-dim: rgba(0,255,65,0.12);
  --green-dim2: rgba(0,255,65,0.06);
  --radius: 10px;
  --col-gap: clamp(12px, 2vw, 24px);
  --section-py: clamp(40px, 6vw, 80px);
  --prose-width: 72ch;
  --hud-h: 36px;
  --header-h: 90px;
  --font-head: 'Orbitron', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Mono', monospace;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.7 var(--font-mono);
  -webkit-font-smoothing: antialiased;
  padding-block-start: calc(var(--hud-h) + var(--header-h));
}
a { color: var(--green); text-decoration: none; }
a:hover { color: var(--pink); }
img { display: block; width: 100%; height: auto; }
h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.2;
  color: var(--text);
}

/* ===== HUD 公告条 ===== */
.hud-bar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: var(--hud-h);
  background: var(--green);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font: 500 11px/1 var(--font-mono);
  z-index: 200;
  will-change: transform;
}
.hud-bar-text {
  display: inline-block;
  animation: hud-scroll 18s linear infinite;
}
@keyframes hud-scroll {
  0% { translate: 0 0; }
  100% { translate: -20% 0; }
}

/* ===== 站头 ===== */
.site-header {
  position: fixed;
  inset-block-start: var(--hud-h);
  inset-inline: 0;
  block-size: var(--header-h);
  background: rgba(13,13,13,0.96);
  border-block-end: 1px solid var(--pink-dim);
  z-index: 100;
  backdrop-filter: blur(12px);
  display: grid;
  grid-template-rows: 1fr 1fr;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-inline: clamp(16px, 4vw, 48px);
  padding-block: 6px;
  border-block-end: 1px solid var(--green-dim);
}
.brand-icon {
  font-size: 22px;
  color: var(--pink);
  line-height: 1;
}
.brand-mark { width: 32px; height: 32px; object-fit: contain; }
.brand-name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(16px, 2.2vw, 22px);
  color: var(--pink);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.brand-name:hover { color: var(--text); }
.brand-tagline {
  font-size: 11px;
  color: var(--text-muted);
  padding-inline-start: 10px;
  border-inline-start: 1px solid var(--pink-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
  padding-inline: clamp(8px, 3vw, 36px);
  overflow-x: auto;
  scrollbar-width: none;
}
.main-nav::-webkit-scrollbar { display: none; }
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0 clamp(8px, 1.5vw, 18px);
  block-size: 44px;
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  border-inline-end: 1px solid var(--green-dim);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  block-size: 2px;
  background: var(--pink);
  scale: 0 1;
  transform-origin: left;
}
.nav-link:hover {
  color: var(--green);
  background: var(--green-dim2);
}
.nav-link:hover::after { scale: 1 1; }

/* ===== 通用 article 容器 ===== */
.page-article { width: 100%; }

/* ===== Hero（首页）===== */
.hero-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  block-size: 45vh;
  min-block-size: 320px;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg3) 100%);
  border-block-end: 1px solid var(--pink-dim);
  position: relative;
}
.hero-media {
  block-size: 100%;
  position: relative;
  overflow: hidden;
}
.hero-img {
  block-size: 100%;
  width: 100%;
  object-fit: cover;
  object-position: center top;
}
.hero-placeholder {
  block-size: 100%;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-placeholder::after {
  content: '◈';
  font-size: 64px;
  color: var(--pink-dim);
}
.hero-content {
  display: grid;
  gap: 16px;
  padding: clamp(24px, 4vw, 56px);
  place-items: start;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--pink);
  color: #000;
  font: 700 10px/1.4 var(--font-mono);
  border-radius: 4px;
  text-transform: uppercase;
}
.hero-h1 {
  font-size: clamp(20px, 3.5vw, 36px);
  color: var(--text);
  line-height: 1.2;
}
.hero-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: var(--pink);
  color: #fff;
  font: 700 14px/1 var(--font-head);
  border-radius: var(--radius);
  block-size: 44px;
}
.hero-cta:hover { background: var(--green); color: #000; }

/* ===== 通用 section 样式 ===== */
.content-section,
.channels-section,
.recent-section,
.entries-section,
.siblings-section,
.related-section,
.art-nav-section,
.about-channels-section,
.about-intro-section,
.privacy-header-section,
.privacy-nav-section,
.art-top,
.art-body-section,
.channel-hero {
  padding-block: var(--section-py);
  padding-inline: clamp(16px, 5vw, 80px);
}

.section-eyebrow {
  font: 700 11px/1 var(--font-mono);
  color: var(--green);
  padding: 4px 10px;
  border-inline-start: 3px solid var(--green);
  background: var(--green-dim2);
  display: inline-block;
  margin-block-end: 28px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ===== 正文容器 ===== */
.prose-wrap {
  width: 100%;
  max-inline-size: var(--prose-width);
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}
.prose-wrap h2 {
  font-size: clamp(18px, 2.5vw, 24px);
  color: var(--pink);
  padding-block: 12px 6px;
  border-block-end: 1px solid var(--pink-dim);
  margin-block: 32px 16px;
}
.prose-wrap h3 {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--green);
  margin-block: 24px 12px;
}
.prose-wrap p { margin-block: 0 16px; }
.prose-wrap ul, .prose-wrap ol {
  padding-inline-start: 20px;
  margin-block: 0 16px;
}
.prose-wrap li { margin-block-end: 8px; }
.prose-wrap a { color: var(--pink); text-decoration: underline; text-underline-offset: 3px; }
.prose-wrap strong { color: var(--green); font-weight: 500; }
.prose-wrap code {
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 15px;
}

/* ===== 频道卡片网格（首页）===== */
.ch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--col-gap);
}
.ch-card {
  display: grid;
  gap: 8px;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--green-dim);
  color: var(--text);
  position: relative;
}
.ch-card:hover {
  border-color: var(--pink);
  background: var(--surface2);
}
.ch-card-hud {
  font: 500 10px/1 var(--font-mono);
  color: var(--green);
  padding: 2px 8px;
  border: 1px solid var(--green);
  border-radius: 3px;
  display: inline-block;
  width: fit-content;
}
.ch-card-title {
  font: 700 16px/1.3 var(--font-head);
  color: var(--pink);
  display: block;
}
.ch-card-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  display: block;
}
.ch-card-sub {
  font-size: 12px;
  color: var(--text-dim);
  display: block;
}

/* ===== 文章列表（首页最新）===== */
.art-list {
  display: grid;
  gap: 8px;
}
.art-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  background: var(--surface);
  border-radius: var(--radius);
  border-inline-start: 3px solid var(--pink-dim);
  color: var(--text);
}
.art-link:hover {
  border-inline-start-color: var(--pink);
  background: var(--surface2);
  color: var(--pink);
}
.art-link-title { font-size: 15px; }
.art-link-date {
  font-size: 12px;
  color: var(--text-dim);
  white-space: nowrap;
}

/* ===== 频道页 Hero ===== */
.channel-hero {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  background: var(--bg2);
  border-block-end: 1px solid var(--pink-dim);
  padding-block: clamp(32px, 5vw, 64px);
}
.channel-hero-media {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--surface);
}
.channel-hero-info { display: grid; gap: 14px; }
.ch-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--green);
  color: #000;
  font: 700 10px/1.4 var(--font-mono);
  border-radius: 4px;
  width: fit-content;
}
.channel-h1 {
  font-size: clamp(22px, 3.5vw, 40px);
  color: var(--text);
}
.channel-lead { font-size: 15px; color: var(--text-muted); }
.channel-stats { display: flex; gap: 10px; }
.stat-pill {
  padding: 4px 12px;
  background: var(--surface);
  border: 1px solid var(--pink-dim);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 条目卡片（频道子页列表）===== */
.entries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--col-gap);
}
.entry-card {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 8px;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid transparent;
  color: var(--text);
  position: relative;
}
.entry-card:hover {
  border-color: var(--green);
  background: var(--surface2);
}
.entry-num {
  font: 900 28px/1 var(--font-head);
  color: var(--pink-dim);
}
.entry-title {
  font: 700 16px/1.4 var(--font-head);
  color: var(--green);
  display: block;
}
.entry-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  display: block;
}
.entry-date {
  font-size: 11px;
  color: var(--text-dim);
  display: block;
}

/* ===== 其他频道链接 ===== */
.siblings-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.sibling-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background: var(--surface);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-muted);
  border: 1px solid var(--green-dim);
  block-size: 44px;
}
.sibling-link:hover { color: var(--green); border-color: var(--green); }

/* ===== 文章页 ===== */
.art-top {
  display: grid;
  gap: 24px;
}
.art-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.art-breadcrumb a { color: var(--green); }
.bc-sep { color: var(--text-dim); }
.art-hero-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/6;
}
.art-hero-img { width: 100%; height: 100%; object-fit: cover; }
.art-header { display: grid; gap: 12px; }
.art-eyebrow {
  font: 700 11px/1 var(--font-mono);
  color: var(--pink);
  text-transform: uppercase;
}
.art-h1 {
  font-size: clamp(22px, 4vw, 38px);
  color: var(--text);
}
.art-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 12px;
  color: var(--text-dim);
}
.art-date { color: var(--green); }
.art-updated { color: var(--text-dim); }
.art-lead { font-size: 16px; color: var(--text-muted); line-height: 1.6; }

.art-prose { color: var(--text); }

.related-list { display: grid; gap: 8px; }
.related-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  background: var(--surface);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 14px;
}
.related-link:hover { color: var(--green); background: var(--surface2); }
.related-title { flex: 1; }

.art-ch-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.art-ch-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  background: var(--surface);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-muted);
  border: 1px solid var(--pink-dim);
  block-size: 44px;
}
.art-ch-link:hover { color: var(--pink); border-color: var(--pink); }

/* ===== 关于页 ===== */
.about-intro-section {
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg3) 100%);
  border-block-end: 1px solid var(--green-dim);
  display: grid;
  place-items: start;
}
.about-hud-frame {
  display: grid;
  gap: 16px;
  padding: 32px;
  border: 1px solid var(--pink-dim);
  border-radius: var(--radius);
  background: var(--surface);
}
.about-hud-tag {
  font: 500 11px/1 var(--font-mono);
  color: var(--green);
  padding: 4px 10px;
  background: var(--green-dim);
  border-radius: 4px;
  display: inline-block;
  width: fit-content;
}
.about-h1 { font-size: clamp(24px, 4vw, 40px); }
.about-lead { font-size: 16px; color: var(--text-muted); }
.about-ch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--col-gap);
}
.about-ch-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--green-dim);
  color: var(--text);
}
.about-ch-card strong { font-family: var(--font-head); font-size: 15px; color: var(--pink); }
.about-ch-card span { font-size: 13px; color: var(--text-muted); }
.about-ch-card:hover { border-color: var(--pink); }

/* ===== 隐私页 ===== */
.privacy-header-section {
  background: var(--bg2);
  border-block-end: 1px solid var(--pink-dim);
  display: grid;
  gap: 16px;
}
.privacy-hud-tag {
  font: 500 11px/1 var(--font-mono);
  color: var(--pink);
  padding: 4px 10px;
  background: var(--pink-dim);
  border-radius: 4px;
  display: inline-block;
  width: fit-content;
}
.privacy-h1 { font-size: clamp(22px, 3.5vw, 36px); }
.privacy-lead { font-size: 15px; color: var(--text-muted); }
.privacy-date { font-size: 12px; color: var(--green); }
.privacy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.privacy-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background: var(--surface);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-muted);
  border: 1px solid var(--green-dim);
  block-size: 44px;
}
.privacy-nav-link:hover { color: var(--green); border-color: var(--green); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg2);
  border-block-start: 1px solid var(--pink-dim);
  padding-block-start: 0;
}
.footer-cta-block {
  background: linear-gradient(90deg, var(--surface) 0%, var(--surface2) 100%);
  padding: clamp(32px, 5vw, 56px) clamp(16px, 5vw, 80px);
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  border-block-end: 1px solid var(--green-dim);
}
.footer-cta-title {
  font: 900 clamp(20px, 3vw, 28px)/1.2 var(--font-head);
  color: var(--pink);
}
.footer-cta-sub {
  font-size: 14px;
  color: var(--text-muted);
  flex: 1;
}
.footer-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  background: var(--pink);
  color: #fff;
  font: 700 14px/1 var(--font-head);
  border-radius: var(--radius);
  block-size: 48px;
  white-space: nowrap;
}
.footer-cta-btn:hover { background: var(--green); color: #000; }

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--col-gap);
  padding: clamp(28px, 4vw, 48px) clamp(16px, 5vw, 80px);
  border-block-end: 1px solid var(--green-dim2);
}
.footer-col { display: grid; gap: 10px; align-content: start; }
.footer-col-head {
  font: 700 12px/1 var(--font-head);
  color: var(--green);
  padding-block-end: 8px;
  border-block-end: 1px solid var(--green-dim);
}
.footer-link {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
  display: block;
  padding-block: 2px;
}
.footer-link:hover { color: var(--pink); }
.footer-note { font-size: 12px; color: var(--text-dim); line-height: 1.6; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px clamp(16px, 5vw, 80px);
  font-size: 12px;
  color: var(--text-dim);
  flex-wrap: wrap;
}
.footer-sep { color: var(--text-dim); }

/* ===== Parallax / 滚动动效 ===== */
.hero-section,
.channel-hero {
  perspective: 1px;
}
.hero-media {
  will-change: transform;
}

.ch-card,
.entry-card,
.about-ch-card {
  will-change: transform;
}

/* intersection observer 目标 */
.observe-fade {
  opacity: 0;
  translate: 0 24px;
}
.observe-fade.visible {
  opacity: 1;
  translate: 0 0;
}

/* ===== Glitch 动效 ===== */
@keyframes glitch-clip {
  0%   { clip-path: inset(0 0 98% 0); translate: -3px 0; }
  25%  { clip-path: inset(40% 0 50% 0); translate: 3px 0; }
  50%  { clip-path: inset(80% 0 10% 0); translate: -2px 0; }
  75%  { clip-path: inset(20% 0 70% 0); translate: 2px 0; }
  100% { clip-path: inset(98% 0 0 0); translate: 0 0; }
}
.brand-name:hover {
  animation: glitch-clip 0.4s steps(1) 1;
}

/* ===== 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .hud-bar-text { animation: none; }
  .observe-fade { opacity: 1; translate: 0 0; }
  .brand-name:hover { animation: none; }
  .hero-media, .ch-card, .entry-card { will-change: auto; }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .channel-hero { grid-template-columns: 1fr; }
  .channel-hero-media { aspect-ratio: 16/7; }
}

@media (max-width: 640px) {
  :root {
    --header-h: 80px;
    --section-py: 28px;
  }
  body { font-size: 16px; }
  .hero-section {
    grid-template-columns: 1fr;
    block-size: auto;
    min-block-size: unset;
  }
  .hero-media {
    aspect-ratio: 16/7;
    block-size: auto;
  }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .footer-cta-block { flex-direction: column; align-items: flex-start; }
  .ch-grid { grid-template-columns: 1fr; }
  .entries-grid { grid-template-columns: 1fr; }
  .about-ch-grid { grid-template-columns: 1fr; }
  .siblings-wrap, .art-ch-links, .privacy-links { gap: 8px; }
  .brand-tagline { display: none; }
  .footer-bottom { gap: 6px; }
}

@media (max-width: 400px) {
  .footer-cols { grid-template-columns: 1fr; }
}

/* ===== 滚动吸附（可选）===== */
.page-home .hero-section {
  scroll-snap-align: start;
}