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

/* ===== 基础变量 ===== */
:root {
  --green: #87ff71;
  --blue: #01cdfe;
  --dark: #192617;
  --dark2: #0d1a0c;
  --dark3: #1e3018;
  --pink: #ff71ce;
  --purple: #b967ff;
  --text: #d4f5cc;
  --text-muted: #7fb87a;
  --border: #87ff71;
  --card-bg: #0d1a0c;
  --nav-h: 64px;
  --announce-h: 32px;
  --font-display: 'Poiret One', 'Didact Gothic', 'Century Gothic', sans-serif;
  --font-body: 'Didact Gothic', 'Century Gothic', system-ui, sans-serif;
  --radius: 0;
  --transition: 0.25s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--dark2);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue); }
ol, ul { list-style: none; }

/* ===== 扫描线纹理覆盖 ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.05) 2px,
    rgba(0,0,0,0.05) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ===== 公告栏 ===== */
.announce-bar {
  width: 100%;
  height: var(--announce-h);
  background: linear-gradient(90deg, var(--dark) 0%, #0a2a08 50%, var(--dark) 100%);
  border-bottom: 1px solid var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  z-index: 200;
}
.announce-bar span {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--green);
  text-shadow: 0 0 8px var(--green);
  letter-spacing: 0.12em;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
}

@keyframes marquee {
  0% { transform: translateX(50vw); }
  100% { transform: translateX(-100%); }
}

/* ===== 导航 ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 150;
  background: rgba(13, 26, 12, 0.95);
  border-bottom: 1px solid var(--green);
  backdrop-filter: blur(8px);
  height: var(--nav-h);
}
.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  gap: 1rem;
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
}
.nav-right { justify-content: flex-end; }
.nav-left li, .nav-right li { display: flex; }
.nav-left a, .nav-right a {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.5rem 0.6rem;
  min-height: 40px;
  display: flex;
  align-items: center;
  letter-spacing: 0.06em;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition), text-shadow var(--transition);
  white-space: nowrap;
}
.nav-left a:hover, .nav-right a:hover {
  color: var(--green);
  border-bottom-color: var(--green);
  text-shadow: 0 0 10px var(--green);
}
.nav-brand {
  flex-shrink: 0;
  text-align: center;
}
.brand-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  text-decoration: none;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--green);
  text-shadow: 0 0 16px var(--green), 0 0 32px rgba(135,255,113,0.4);
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.brand-logo { width: 32px; height: 32px; object-fit: contain; }
.nav-burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--green);
  padding: 0.5rem;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition);
}
.nav-burger:hover { background: rgba(135,255,113,0.1); }
.nav-burger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--green);
  transition: transform var(--transition), opacity var(--transition);
}

/* ===== 全屏菜单 ===== */
.nav-fullscreen {
  position: fixed;
  inset: 0;
  background: rgba(13, 26, 12, 0.98);
  z-index: 500;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.nav-fullscreen.is-open {
  opacity: 1;
  pointer-events: all;
}
.nav-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 1.5rem;
  width: 48px;
  height: 48px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.nav-close:hover { background: rgba(135,255,113,0.15); }
.nav-full-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.nav-full-list li { opacity: 0; transform: translateY(20px); }
.nav-fullscreen.is-open .nav-full-list li {
  animation: fadeUp 0.4s forwards;
}
.nav-fullscreen.is-open .nav-full-list li:nth-child(1) { animation-delay: 0.05s; }
.nav-fullscreen.is-open .nav-full-list li:nth-child(2) { animation-delay: 0.1s; }
.nav-fullscreen.is-open .nav-full-list li:nth-child(3) { animation-delay: 0.15s; }
.nav-fullscreen.is-open .nav-full-list li:nth-child(4) { animation-delay: 0.2s; }
.nav-fullscreen.is-open .nav-full-list li:nth-child(5) { animation-delay: 0.25s; }
.nav-fullscreen.is-open .nav-full-list li:nth-child(6) { animation-delay: 0.3s; }
.nav-fullscreen.is-open .nav-full-list li:nth-child(7) { animation-delay: 0.35s; }
.nav-full-list a {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--text);
  letter-spacing: 0.1em;
  padding: 0.75rem 2rem;
  display: block;
  min-height: 56px;
  display: flex;
  align-items: center;
  transition: color var(--transition), text-shadow var(--transition);
}
.nav-full-list a:hover {
  color: var(--green);
  text-shadow: 0 0 20px var(--green);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--green); }
.breadcrumb span { color: var(--text-muted); }

/* ===== Hero (首页) ===== */
.hero-section {
  min-height: 100vh;
  position: relative;
  background: linear-gradient(135deg, var(--dark2) 0%, #0a1f09 40%, #001a1f 100%);
  display: flex;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 60%, rgba(135,255,113,0.03) 100%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(135,255,113,0.03) 60px,
      rgba(135,255,113,0.03) 61px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(1,205,254,0.03) 60px,
      rgba(1,205,254,0.03) 61px
    );
  pointer-events: none;
}
.hero-article {
  width: 100%;
  display: flex;
  align-items: center;
  padding: 0 5vw;
  gap: 4rem;
  position: relative;
  z-index: 1;
}
.hero-text {
  flex: 1;
  min-width: 0;
  padding: 6rem 0;
}
.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--blue);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  text-shadow: 0 0 10px var(--blue);
}
.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  color: var(--green);
  line-height: 1.15;
  margin-bottom: 1.5rem;
  text-shadow: 0 0 20px rgba(135,255,113,0.5), 0 0 40px rgba(135,255,113,0.2);
  letter-spacing: 0.04em;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text);
  max-width: 500px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}
.hero-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 2.5rem;
  background: transparent;
  border: 2px solid var(--green);
  color: var(--green);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-shadow: 0 0 10px var(--green);
  box-shadow: 0 0 20px rgba(135,255,113,0.2), inset 0 0 20px rgba(135,255,113,0.05);
  transition: background var(--transition), box-shadow var(--transition);
  min-height: 48px;
}
.hero-btn:hover {
  background: rgba(135,255,113,0.12);
  box-shadow: 0 0 32px rgba(135,255,113,0.5), inset 0 0 32px rgba(135,255,113,0.1);
  color: var(--green);
}
.hero-img-wrap {
  flex: 1;
  max-width: 520px;
  position: relative;
}
.hero-img-wrap::after {
  content: '';
  position: absolute;
  inset: -2px;
  border: 1px solid rgba(135,255,113,0.3);
  pointer-events: none;
}
.hero-img { width: 100%; height: 100%; object-fit: cover; }
.hero-decoration {
  min-height: 400px;
  background: linear-gradient(135deg, rgba(135,255,113,0.05) 0%, rgba(1,205,254,0.05) 50%, rgba(185,103,255,0.05) 100%);
  border: 1px solid rgba(135,255,113,0.15);
  position: relative;
  overflow: hidden;
}
.hero-decoration::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #FF71CE22 0%, #01CDFE22 50%, #B967FF22 100%);
}
.hero-slash {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 80px;
  background: linear-gradient(180deg, var(--green) 0%, var(--blue) 100%);
  clip-path: polygon(30% 0%, 100% 0%, 70% 100%, 0% 100%);
  opacity: 0.08;
  transform: translateX(-50%);
  pointer-events: none;
}

/* ===== 正文容器共用 main > div.wrap > article > section ===== */
.wrap {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* content-article 用于内容+侧栏布局 */
.content-article {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  padding: 3rem 0;
}

/* ===== 侧边栏（左侧） ===== */
aside.sidebar {
  width: 240px;
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--announce-h) + var(--nav-h) + 1rem);
}
.sidebar-inner {
  background: var(--card-bg);
  border: 1px solid rgba(135,255,113,0.2);
  border-bottom: 3px solid var(--green);
  padding: 1.25rem;
}
.sidebar-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--green);
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(135,255,113,0.2);
  text-shadow: 0 0 8px rgba(135,255,113,0.5);
}
.sidebar-title span { display: inline; }
.sidebar-nav { display: flex; flex-direction: column; gap: 0.2rem; margin-bottom: 1.25rem; }
.sidebar-nav li { display: flex; }
.sidebar-nav a {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.4rem 0.5rem;
  width: 100%;
  border-left: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  min-height: 40px;
  display: flex;
  align-items: center;
}
.sidebar-nav a:hover {
  color: var(--green);
  border-left-color: var(--green);
}
.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.sidebar-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.4rem 0.5rem;
  border-left: 2px solid transparent;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: color var(--transition), border-color var(--transition);
}
.sidebar-link:hover { color: var(--green); border-left-color: var(--green); }

/* ===== 主列 ===== */
.main-col {
  flex: 1;
  min-width: 0;
}

/* ===== 页面通用内容 ===== */
.page-content {
  line-height: 1.8;
  font-size: 1rem;
  color: var(--text);
}
.page-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--green);
  margin: 2rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(135,255,113,0.2);
  text-shadow: 0 0 10px rgba(135,255,113,0.3);
}
.page-content h2 span { display: inline; }
.page-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--blue);
  margin: 1.5rem 0 0.75rem;
  text-shadow: 0 0 8px rgba(1,205,254,0.3);
}
.page-content h3 span { display: inline; }
.page-content p { margin-bottom: 1rem; }
.page-content ul, .page-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  list-style: disc;
}
.page-content ol { list-style: decimal; }
.page-content li { margin-bottom: 0.4rem; }
.page-content a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-content a:hover { color: var(--green); }
.page-content strong { color: var(--green); font-weight: 700; }
.page-content blockquote {
  border-left: 3px solid var(--green);
  padding: 0.75rem 1.25rem;
  background: rgba(135,255,113,0.04);
  margin: 1.5rem 0;
  color: var(--text-muted);
}
.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}
.page-content th {
  background: rgba(135,255,113,0.1);
  color: var(--green);
  padding: 0.6rem 0.75rem;
  text-align: left;
  font-family: var(--font-display);
  border: 1px solid rgba(135,255,113,0.2);
}
.page-content td {
  padding: 0.6rem 0.75rem;
  border: 1px solid rgba(135,255,113,0.1);
  color: var(--text);
}

/* ===== 日期 ===== */
.page-date, .article-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-right: 1rem;
}
.card-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.5rem;
}

/* ===== 区块标题 ===== */
.section-heading {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--green);
  letter-spacing: 0.1em;
  margin: 2.5rem 0 1.25rem;
  text-shadow: 0 0 12px rgba(135,255,113,0.4);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-heading::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.4em;
  background: linear-gradient(180deg, var(--green), var(--blue));
  flex-shrink: 0;
}
.section-heading span { display: inline; }

/* ===== 卡片网格 ===== */
.cards-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

/* 首页 topic 卡片 - 带图 */
.topic-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid rgba(135,255,113,0.2);
  border-bottom: 3px solid var(--green);
  padding: 0;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  color: var(--text);
  position: relative;
}
.topic-card:hover {
  border-color: var(--green);
  box-shadow: 0 0 24px rgba(135,255,113,0.2);
  transform: translateY(-2px);
  color: var(--text);
}
.card-img-wrap { overflow: hidden; height: 160px; }
.card-img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.topic-card:hover .card-img { transform: scale(1.04); }
.topic-card > .card-title {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--green);
  padding: 1rem 1rem 0.25rem;
  letter-spacing: 0.06em;
  text-shadow: 0 0 8px rgba(135,255,113,0.3);
}
.topic-card > .card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0 1rem;
  line-height: 1.6;
  flex: 1;
}
.card-cta {
  display: inline-block;
  padding: 0.5rem 1rem 1rem;
  font-size: 0.8rem;
  color: var(--blue);
  letter-spacing: 0.06em;
  transition: color var(--transition);
}
.topic-card:hover .card-cta { color: var(--green); }

/* 文章/子页卡片 */
.child-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid rgba(1,205,254,0.15);
  border-bottom: 3px solid var(--blue);
  padding: 1.25rem;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  color: var(--text);
}
.child-card:hover {
  border-color: var(--blue);
  box-shadow: 0 0 20px rgba(1,205,254,0.15);
  transform: translateY(-2px);
  color: var(--text);
}
.child-card > .card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--blue);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}
.child-card > .card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

/* ===== 标签云 ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.tag-chip {
  font-size: 0.75rem;
  font-family: var(--font-display);
  color: var(--purple);
  border: 1px solid var(--purple);
  padding: 0.25rem 0.6rem;
  letter-spacing: 0.08em;
  transition: background var(--transition), color var(--transition);
  min-height: 32px;
  display: flex;
  align-items: center;
}
.tag-chip:hover {
  background: rgba(185,103,255,0.15);
  color: var(--purple);
}

/* ===== Topic Hero ===== */
.topic-hero-section {
  padding: 3rem 0 0;
  position: relative;
}
.topic-hero-article {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding: 2rem 0 3rem;
  position: relative;
}
.topic-hero-article::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), var(--blue), transparent);
}
.topic-hero-text { flex: 1; }
.topic-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--green);
  line-height: 1.2;
  margin-bottom: 1rem;
  text-shadow: 0 0 16px rgba(135,255,113,0.4);
}
.topic-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.75;
}
.topic-hero-media {
  flex-shrink: 0;
  width: 320px;
  overflow: hidden;
  border: 1px solid rgba(135,255,113,0.2);
  border-bottom: 3px solid var(--green);
}
.topic-hero-img { width: 100%; height: 200px; object-fit: cover; }

/* ===== 文章布局 ===== */
.article-layout-section { padding-top: 1.5rem; }
.article-header { margin-bottom: 2rem; }
.article-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  color: var(--green);
  line-height: 1.25;
  margin-bottom: 0.75rem;
  text-shadow: 0 0 16px rgba(135,255,113,0.3);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.82rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(135,255,113,0.15);
}
.article-cat {
  color: var(--blue);
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--blue);
  padding: 0.15rem 0.5rem;
}
.article-cat:hover { background: rgba(1,205,254,0.1); color: var(--blue); }
.article-hero { margin-bottom: 2rem; border-bottom: 3px solid var(--green); overflow: hidden; }
.article-hero-img { width: 100%; max-height: 400px; object-fit: cover; }
.related-articles { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(135,255,113,0.15); }

/* ===== About 页 ===== */
.about-header-section {
  padding: 4rem 0;
  border-bottom: 1px solid rgba(135,255,113,0.15);
}
.about-header-article {
  display: flex;
  align-items: center;
  gap: 3rem;
}
.about-header-inner { flex: 1; }
.page-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--blue);
  letter-spacing: 0.25em;
  margin-bottom: 0.75rem;
  text-shadow: 0 0 8px var(--blue);
}
.about-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  color: var(--green);
  margin-bottom: 1rem;
  text-shadow: 0 0 16px rgba(135,255,113,0.4);
}
.about-lead { font-size: 1rem; color: var(--text-muted); max-width: 560px; line-height: 1.8; }
.about-deco {
  width: 200px;
  height: 200px;
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(135,255,113,0.08), rgba(1,205,254,0.08), rgba(185,103,255,0.08));
  border: 1px solid rgba(135,255,113,0.2);
  animation: pulse-glow 4s ease-in-out infinite alternate;
}
@keyframes pulse-glow {
  from { box-shadow: 0 0 20px rgba(135,255,113,0.1); }
  to { box-shadow: 0 0 40px rgba(1,205,254,0.2); }
}
.about-stats { margin-top: 2.5rem; }
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}
.stat-item {
  background: var(--card-bg);
  border: 1px solid rgba(135,255,113,0.15);
  border-bottom: 3px solid var(--green);
  padding: 1.25rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--green);
  text-shadow: 0 0 12px rgba(135,255,113,0.5);
  line-height: 1;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

/* ===== Privacy 页 ===== */
.privacy-header-section {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid rgba(135,255,113,0.15);
}
.privacy-header-article { padding: 1rem 0; }
.privacy-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--green);
  margin-bottom: 0.75rem;
  text-shadow: 0 0 16px rgba(135,255,113,0.3);
}

/* ===== Tag 页 ===== */
.tag-header-section {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid rgba(135,255,113,0.15);
}
.tag-header-article { padding: 0; }
.tag-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--purple);
  letter-spacing: 0.25em;
  display: block;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 8px var(--purple);
}
.tag-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--green);
  margin-bottom: 0.75rem;
  text-shadow: 0 0 16px rgba(135,255,113,0.4);
}
.tag-desc { font-size: 1rem; color: var(--text-muted); max-width: 560px; line-height: 1.8; }

/* ===== 页脚 ===== */
.site-footer {
  margin-top: 4rem;
  background: var(--dark2);
  border-top: 1px solid rgba(135,255,113,0.2);
}
.footer-cta {
  background: linear-gradient(90deg, rgba(135,255,113,0.06) 0%, rgba(1,205,254,0.06) 50%, rgba(185,103,255,0.06) 100%);
  border-bottom: 1px solid rgba(135,255,113,0.15);
  padding: 3rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}
.footer-cta-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--text);
  letter-spacing: 0.06em;
}
.footer-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.8rem 2.5rem;
  background: transparent;
  border: 2px solid var(--green);
  color: var(--green);
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-shadow: 0 0 10px var(--green);
  min-height: 48px;
  transition: background var(--transition), box-shadow var(--transition);
}
.footer-cta-btn:hover {
  background: rgba(135,255,113,0.1);
  box-shadow: 0 0 24px rgba(135,255,113,0.3);
  color: var(--green);
}
.footer-bottom {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}
.footer-address {
  font-style: normal;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-address span {
  color: var(--green);
  font-family: var(--font-display);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  justify-content: center;
}
.footer-links li { display: flex; }
.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 0.4rem 0.75rem;
  min-height: 40px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.footer-links a:hover {
  color: var(--green);
  border-bottom-color: var(--green);
}
.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ===== 霓虹动效 ===== */
@keyframes neon-flicker {
  0%, 95%, 100% { opacity: 1; }
  96% { opacity: 0.8; }
  97% { opacity: 1; }
  98% { opacity: 0.6; }
  99% { opacity: 1; }
}

.brand-name {
  animation: neon-flicker 8s infinite;
}

/* ===== 滚动动画（stagger） ===== */
@media (prefers-reduced-motion: no-preference) {
  .child-card, .topic-card {
    animation: fadeInUp 0.5s both;
  }
  .child-card:nth-child(1), .topic-card:nth-child(1) { animation-delay: 0.05s; }
  .child-card:nth-child(2), .topic-card:nth-child(2) { animation-delay: 0.1s; }
  .child-card:nth-child(3), .topic-card:nth-child(3) { animation-delay: 0.15s; }
  .child-card:nth-child(4), .topic-card:nth-child(4) { animation-delay: 0.2s; }
  .child-card:nth-child(5), .topic-card:nth-child(5) { animation-delay: 0.25s; }
  .child-card:nth-child(6), .topic-card:nth-child(6) { animation-delay: 0.3s; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .nav-left, .nav-right { display: none; }
  .nav-inner { justify-content: space-between; }
  .nav-brand { flex: 1; text-align: left; }
  .hero-article { flex-direction: column; padding: 4rem 0; gap: 2rem; }
  .hero-img-wrap { max-width: 100%; width: 100%; }
  .topic-hero-article { flex-direction: column; gap: 2rem; }
  .topic-hero-media { width: 100%; }
  .about-header-article { flex-direction: column; }
  .about-deco { display: none; }
}

@media (max-width: 768px) {
  :root { --nav-h: 56px; }
  .content-article { flex-direction: column; }
  aside.sidebar { width: 100%; position: static; }
  .cards-wrap { grid-template-columns: 1fr 1fr; }
  .hero-text { padding: 3rem 0 2rem; }
  .hero-h1 { font-size: 1.8rem; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .cards-wrap { grid-template-columns: 1fr; }
  .nav-full-list a { font-size: 1.2rem; padding: 0.6rem 1.5rem; }
  .hero-h1 { font-size: 1.5rem; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .footer-cta { padding: 2rem 1rem; }
  .footer-cta-text { font-size: 1.05rem; }
}

@media (max-width: 375px) {
  .wrap { padding: 0 1rem; }
  .nav-inner { padding: 0 1rem; }
  .brand-name { font-size: 0.95rem; }
  .announce-bar span { font-size: 0.7rem; }
}