@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* ===== 基础变量 ===== */
:root {
  --c-primary: #80ff00;
  --c-secondary: #00ff00;
  --c-dark: #1f2617;
  --c-dark-80: rgba(31,38,23,0.8);
  --c-dark-50: rgba(31,38,23,0.5);
  --c-light: #f5fde8;
  --c-white: #ffffff;
  --c-accent: #ccff33;
  --c-muted: #6b7a5c;
  --c-border: rgba(128,255,0,0.25);
  --c-card-bg: rgba(31,38,23,0.92);
  --r-card: 18px;
  --nav-width: 60px;
  --font-main: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: 0.3s ease;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 18px; scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--c-dark);
  color: var(--c-light);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-secondary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--c-dark); }
::-webkit-scrollbar-thumb { background: var(--c-primary); border-radius: 3px; }

/* ===== site-shell ===== */
.site-shell { display: flex; min-height: 100vh; position: relative; }

/* ===== 左侧固定条 ===== */
.side-strip {
  position: fixed;
  left: 0; top: 0;
  width: var(--nav-width);
  height: 100vh;
  background: var(--c-dark);
  border-right: 2px solid var(--c-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  z-index: 100;
}
.strip-brand {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  text-transform: none;
  max-height: 200px;
  overflow: hidden;
  white-space: nowrap;
}
.strip-hamburger {
  font-size: 1.4rem;
  color: var(--c-primary);
  padding: 0.5rem;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== 汉堡按钮（右上角浮动） ===== */
.nav-hamburger {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.6rem;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
  background: var(--c-primary);
  border-radius: 8px;
  transition: var(--transition);
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-hamburger:hover { background: var(--c-secondary); }

/* ===== 全屏遮罩导航 ===== */
.fullscreen-nav {
  position: fixed;
  inset: 0;
  background: var(--c-dark);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  overflow: hidden;
}
.fullscreen-nav.is-open {
  opacity: 1;
  pointer-events: all;
}
.nav-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  font-size: 1.8rem;
  color: var(--c-primary);
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
}
.nav-close:hover { background: var(--c-primary); color: var(--c-dark); }

.nav-brand-full {
  margin-bottom: 2.5rem;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.nav-brand-full a { color: var(--c-primary); }

.main-nav ol {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
}
.main-nav li a {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.6rem 1.5rem;
  min-height: 52px;
  border-radius: 8px;
  transition: var(--transition);
  color: var(--c-light);
  font-size: 1rem;
  font-weight: 500;
  gap: 2px;
}
.main-nav li a:hover,
.main-nav li a[aria-current="page"] {
  background: var(--c-primary);
  color: var(--c-dark);
}
.nav-num {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.12em;
  transition: var(--transition);
}
.main-nav li a:hover .nav-num,
.main-nav li a[aria-current="page"] .nav-num {
  color: var(--c-dark);
}
.nav-label { font-size: 0.95rem; }

/* 导航装饰贴纸 */
.nav-deco-sticker {
  position: absolute;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  letter-spacing: 0.08em;
  transform-origin: center;
  pointer-events: none;
}
.nav-sticker-1 {
  top: 15%;
  left: 8%;
  background: var(--c-primary);
  color: var(--c-dark);
  transform: rotate(-8deg);
}
.nav-sticker-2 {
  bottom: 20%;
  right: 10%;
  background: transparent;
  color: var(--c-primary);
  border: 2px solid var(--c-primary);
  transform: rotate(5deg);
}
.nav-sticker-3 {
  bottom: 10%;
  left: 12%;
  background: var(--c-dark-80);
  color: var(--c-accent);
  border: 1px solid var(--c-accent);
  transform: rotate(-3deg);
}

/* ===== page-body ===== */
.page-body {
  margin-left: var(--nav-width);
  flex: 1;
  min-width: 0;
}

/* ===== 通用按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--c-primary);
  color: var(--c-dark);
  font-weight: 700;
  padding: 0.7rem 1.8rem;
  border-radius: 10px;
  font-size: 0.95rem;
  transition: var(--transition);
  min-height: 44px;
  letter-spacing: 0.04em;
}
.btn-primary:hover { background: var(--c-secondary); color: var(--c-dark); transform: translateY(-2px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--c-primary);
  color: var(--c-primary);
  font-weight: 700;
  padding: 0.7rem 1.8rem;
  border-radius: 10px;
  font-size: 0.95rem;
  transition: var(--transition);
  min-height: 44px;
}
.btn-ghost:hover { background: var(--c-primary); color: var(--c-dark); }

/* ===== Hero 首页 ===== */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--c-dark);
}
.hero-skew-bg {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 80%;
  background: linear-gradient(135deg, var(--c-dark) 50%, rgba(128,255,0,0.08) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 75%, 0 100%);
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 3rem;
  padding: 4rem 2.5rem 3rem;
  min-height: calc(70vh - 56px);
  flex-wrap: wrap;
}
.hero-text {
  flex: 1;
  min-width: 280px;
  text-align: right;
}
.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.hero-text h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-light);
  margin-bottom: 1rem;
}
.hero-sub {
  font-size: 1rem;
  color: var(--c-muted);
  max-width: 480px;
  margin-left: auto;
  margin-bottom: 1.5rem;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}
.hero-icon-wrap {
  flex-shrink: 0;
}
.hero-icon-blob {
  width: 120px;
  height: 120px;
  background: var(--c-primary);
  border-radius: 40% 60% 60% 40% / 50% 40% 60% 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: blob-morph 6s ease-in-out infinite;
  filter: drop-shadow(0 0 24px rgba(128,255,0,0.5));
}
.blob-txt {
  font-size: 3rem;
  font-weight: 700;
  color: var(--c-dark);
  line-height: 1;
}
@keyframes blob-morph {
  0%,100% { border-radius: 40% 60% 60% 40% / 50% 40% 60% 50%; }
  33% { border-radius: 60% 40% 40% 60% / 40% 60% 50% 60%; }
  66% { border-radius: 50% 50% 60% 40% / 60% 40% 50% 50%; }
}

.hero-stickers {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}
.sticker {
  position: absolute;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  letter-spacing: 0.1em;
}
.s1 { top: 12%; left: 5%; background: var(--c-primary); color: var(--c-dark); transform: rotate(-6deg); }
.s2 { top: 25%; right: 3%; background: transparent; border: 2px solid var(--c-primary); color: var(--c-primary); transform: rotate(4deg); }
.s3 { bottom: 30%; left: 3%; background: var(--c-dark-80); color: var(--c-accent); border: 1px solid var(--c-accent); transform: rotate(-3deg); }
.s4 { bottom: 20%; right: 5%; background: var(--c-primary); color: var(--c-dark); transform: rotate(7deg); }

/* Marquee */
.hero-marquee {
  position: relative;
  z-index: 2;
  background: var(--c-primary);
  overflow: hidden;
  padding: 0.5rem 0;
  margin-top: auto;
}
.marquee-track {
  display: inline-flex;
  gap: 1.5rem;
  animation: marquee-scroll 18s linear infinite;
  white-space: nowrap;
  padding-right: 2rem;
}
.marquee-track span {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-dark);
  letter-spacing: 0.06em;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== 通用 article header ===== */
.section-header {
  padding: 0 2.5rem;
  margin-bottom: 2rem;
}
.section-header h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  color: var(--c-light);
  line-height: 1.3;
}
.sec-num {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.12em;
  background: rgba(128,255,0,0.12);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}
.sec-sub {
  font-size: 0.9rem;
  color: var(--c-muted);
  margin-top: 0.3rem;
}

/* ===== 卡片通用 ===== */
.topic-card,
.article-card,
.child-card,
.related-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
}
.topic-card:hover,
.article-card:hover,
.child-card:hover,
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(128,255,0,0.12);
}
.card-inner {
  padding: 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.card-accent-line {
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  border-radius: 0 0 var(--r-card) var(--r-card);
  flex-shrink: 0;
}
.card-tag-chip {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  background: rgba(128,255,0,0.1);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  align-self: flex-start;
}
.card-inner h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-light);
  line-height: 1.4;
}
.card-desc {
  font-size: 0.88rem;
  color: var(--c-muted);
  line-height: 1.6;
  flex: 1;
}
.card-meta {
  font-size: 0.75rem;
  color: var(--c-muted);
}
.card-date {
  font-size: 0.75rem;
  color: var(--c-muted);
  display: block;
}
.card-index {
  font-size: 1.6rem;
  font-weight: 700;
  color: rgba(128,255,0,0.2);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.card-cta {
  display: inline-flex;
  align-items: center;
  color: var(--c-primary);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.4rem 0;
  min-height: 40px;
  border-bottom: 1px solid var(--c-border);
  transition: var(--transition);
  margin-top: auto;
}
.card-cta:hover { color: var(--c-secondary); border-color: var(--c-secondary); }
.card-cta::after { content: ' →'; }

/* ===== 首页专题网格 ===== */
.topics-grid-section,
.articles-grid-section {
  padding: 3rem 0;
}
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  padding: 0 2.5rem;
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 0 2.5rem;
}

/* ===== 首页 aside ===== */
.home-aside {
  margin: 2rem 2.5rem;
  padding: 1.5rem;
  background: rgba(128,255,0,0.04);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.home-aside h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-primary);
}

/* ===== 通用正文容器 ===== */
.wrap { padding: 0 2.5rem; }
.content-section { padding: 2.5rem 0; }
.prose-article { max-width: 780px; }
.article-body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-light);
}
.article-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c-light);
  margin: 2rem 0 0.8rem;
  padding-left: 0.8rem;
  border-left: 4px solid var(--c-primary);
}
.article-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-accent);
  margin: 1.5rem 0 0.6rem;
}
.article-body p { margin-bottom: 1rem; }
.article-body ul, .article-body ol {
  margin: 0.8rem 0 1rem 1.2rem;
  list-style: disc;
}
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 0.4rem; }
.article-body a { color: var(--c-primary); text-decoration: underline; }
.article-body a:hover { color: var(--c-secondary); }
.article-body strong { color: var(--c-primary); font-weight: 700; }
.article-body blockquote {
  border-left: 3px solid var(--c-primary);
  padding: 0.6rem 1rem;
  background: rgba(128,255,0,0.05);
  border-radius: 0 8px 8px 0;
  margin: 1rem 0;
  color: var(--c-muted);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}
.article-body th {
  background: rgba(128,255,0,0.12);
  color: var(--c-primary);
  padding: 0.5rem 0.8rem;
  text-align: left;
  font-weight: 700;
}
.article-body td {
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-light);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--c-muted);
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  align-items: center;
}
.breadcrumb a { color: var(--c-muted); }
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb span[aria-current="page"] { color: var(--c-light); }

/* ===== 文章头部 ===== */
.article-header {
  margin-bottom: 2rem;
}
.article-topic-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  background: rgba(128,255,0,0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 0.8rem;
}
.article-header h1 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-light);
  margin-bottom: 0.8rem;
}
.article-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--c-muted);
}
.article-meta time { display: block; }
.article-hero-img-wrap { margin: 1.5rem 0; border-radius: var(--r-card); overflow: hidden; }
.article-hero-img { width: 100%; height: auto; }

/* ===== 标签 ===== */
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.8rem;
  background: rgba(128,255,0,0.08);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--c-primary);
  font-weight: 500;
  transition: var(--transition);
  min-height: 32px;
}
.tag-chip:hover { background: var(--c-primary); color: var(--c-dark); }
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--c-border);
}

/* ===== 文章布局双栏 ===== */
.article-layout-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 0;
  align-items: start;
}
.article-main { min-width: 0; }

/* ===== 侧边栏通用 ===== */
.article-aside,
.topic-aside,
.tag-aside,
.about-aside,
.privacy-aside,
.default-aside,
.home-aside {
  position: relative;
}
.article-aside {
  padding: 2.5rem 1.5rem 2.5rem 1rem;
  position: sticky;
  top: 1.5rem;
  align-self: start;
}
.aside-sticky {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.aside-block {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  padding: 1.2rem;
}
.aside-block h2, .aside-block h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
  letter-spacing: 0.06em;
}
.aside-links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.aside-links li a {
  font-size: 0.88rem;
  color: var(--c-muted);
  display: flex;
  align-items: center;
  padding: 0.3rem 0;
  min-height: 36px;
  transition: var(--transition);
  border-bottom: 1px solid rgba(128,255,0,0.06);
}
.aside-links li a:hover { color: var(--c-primary); padding-left: 0.4rem; }
.aside-links li a::before { content: '·'; color: var(--c-primary); margin-right: 0.5rem; }

.aside-topic-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-light);
  display: block;
  padding: 0.5rem;
  background: rgba(128,255,0,0.08);
  border-radius: 8px;
  transition: var(--transition);
}
.aside-topic-link:hover { background: var(--c-primary); color: var(--c-dark); }

.aside-sticker {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-primary);
  border: 1px dashed var(--c-primary);
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  text-align: center;
  opacity: 0.7;
}

/* ===== topic 页 hero ===== */
.topic-hero {
  position: relative;
  min-height: 300px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
}
.topic-hero-skew {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(128,255,0,0.08) 0%, transparent 60%);
  clip-path: polygon(0 0, 70% 0, 55% 100%, 0 100%);
}
.topic-hero-content {
  position: relative;
  z-index: 2;
  padding: 3rem 2.5rem;
  max-width: 700px;
}
.topic-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
}
.topic-hero-content h1 {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--c-light);
  line-height: 1.25;
  margin-bottom: 0.8rem;
}
.topic-sub {
  font-size: 1rem;
  color: var(--c-muted);
  max-width: 500px;
  line-height: 1.7;
}
.topic-hero-stickers {
  position: absolute;
  right: 2.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

/* ===== topic body ===== */
.topic-body-wrap {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 0;
  align-items: start;
}
.topic-aside {
  padding: 2rem 1.5rem;
  position: sticky;
  top: 1.5rem;
}
.topic-aside h2, .topic-aside h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
  margin-top: 1.2rem;
}
.topic-aside h2:first-child { margin-top: 0; }

/* ===== children article ===== */
.children-section {
  padding: 2.5rem;
}
.children-section .section-header {
  padding: 0;
}

/* ===== tag 页 ===== */
.tag-hero {
  position: relative;
  min-height: 260px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
  border-bottom: 2px solid var(--c-border);
}
.tag-hero-skew {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(128,255,0,0.06) 0%, transparent 70%);
}
.tag-hero-content {
  position: relative;
  z-index: 2;
  padding: 3rem 2.5rem;
}
.tag-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--c-primary);
  margin-bottom: 0.6rem;
}
.tag-hero-content h1 {
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--c-light);
  margin-bottom: 0.6rem;
}
.tag-sub { font-size: 0.95rem; color: var(--c-muted); max-width: 480px; line-height: 1.7; }
.tag-count-badge {
  display: inline-block;
  margin-top: 0.8rem;
  background: var(--c-primary);
  color: var(--c-dark);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.8rem;
  border-radius: 20px;
}
.tag-body-wrap {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 0;
  align-items: start;
}
.tag-aside {
  padding: 2rem 1.5rem;
  position: sticky;
  top: 1.5rem;
}
.tag-aside h2, .tag-aside h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
  margin-top: 1.2rem;
}
.tag-aside h2:first-child { margin-top: 0; }
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.tagged-section {
  padding: 2.5rem;
}
.tagged-section .section-header { padding: 0; margin-bottom: 1.5rem; }

/* ===== about 页 ===== */
.about-hero {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-dark) 60%, rgba(128,255,0,0.06) 100%);
}
.about-hero-band {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary), var(--c-primary));
}
.about-hero-content {
  position: relative;
  z-index: 2;
  padding: 3rem 2.5rem;
}
.about-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
}
.about-hero-content h1 {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--c-light);
  line-height: 1.25;
}
.about-hero-stickers {
  position: absolute;
  right: 2.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.about-body-wrap, .privacy-body-wrap {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 0;
  align-items: start;
}
.about-main, .privacy-main { min-width: 0; }
.about-aside {
  padding: 2rem 1.5rem;
  position: sticky;
  top: 1.5rem;
}
.about-aside h2, .about-aside h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
  margin-top: 1.2rem;
}
.about-aside h2:first-child { margin-top: 0; }
.aside-brand-block {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(128,255,0,0.06);
  border-radius: 12px;
  border: 1px solid var(--c-border);
}
.aside-brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 0.4rem;
}
.aside-brand-desc { font-size: 0.8rem; color: var(--c-muted); line-height: 1.6; }

/* ===== privacy 页 ===== */
.privacy-hero {
  position: relative;
  min-height: 220px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
  border-bottom: 1px solid var(--c-border);
}
.privacy-hero-band {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--c-primary), var(--c-secondary));
}
.privacy-hero-content {
  position: relative;
  z-index: 2;
  padding: 3rem 2.5rem;
}
.privacy-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
}
.privacy-hero-content h1 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--c-light);
  margin-bottom: 0.5rem;
}
.privacy-updated { font-size: 0.8rem; color: var(--c-muted); }
.privacy-aside {
  padding: 2rem 1.5rem;
  position: sticky;
  top: 1.5rem;
}
.privacy-aside h2, .privacy-aside h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
  margin-top: 1.2rem;
}
.privacy-aside h2:first-child { margin-top: 0; }
.aside-legal-note {
  padding: 0.8rem;
  background: rgba(128,255,0,0.04);
  border-radius: 8px;
  border: 1px solid var(--c-border);
  font-size: 0.8rem;
  color: var(--c-muted);
  line-height: 1.6;
}
.prose-legal .article-body h2 { font-size: 1.15rem; }

/* ===== related article ===== */
.related-section {
  padding: 3rem 2.5rem;
  border-top: 1px solid var(--c-border);
}
.related-section .section-header { padding: 0; margin-bottom: 1.5rem; }
.related-section .related-card {
  display: inline-flex;
  flex-direction: column;
  width: calc(25% - 1.5rem);
  min-width: 200px;
}

/* ===== default hero ===== */
.default-hero {
  padding: 3rem 2.5rem 2rem;
  border-bottom: 1px solid var(--c-border);
}
.default-hero h1 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--c-light);
  margin-bottom: 0.5rem;
}
.default-hero time { font-size: 0.8rem; color: var(--c-muted); }
.default-aside {
  margin: 2rem 2.5rem;
  padding: 1.5rem;
  background: rgba(128,255,0,0.03);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
}
.default-aside h2 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 0.8rem;
}

/* ===== 页脚 ===== */
.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--c-border);
}
.footer-cta-section {
  background: var(--c-primary);
  padding: 2.5rem;
}
.footer-cta-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-cta-text {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 700;
  color: var(--c-dark);
}
.footer-cta-section .btn-primary {
  background: var(--c-dark);
  color: var(--c-primary);
}
.footer-cta-section .btn-primary:hover {
  background: rgba(31,38,23,0.8);
  color: var(--c-secondary);
}
.footer-meta-section {
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.8rem;
  background: var(--c-dark);
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--c-muted);
  text-align: center;
}
.footer-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-nav a {
  font-size: 0.8rem;
  color: var(--c-muted);
  padding: 0.4rem 0;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: var(--transition);
}
.footer-nav a:hover { color: var(--c-primary); }

/* ===== 空状态 ===== */
.empty-note {
  color: var(--c-muted);
  font-size: 0.9rem;
  padding: 2rem;
  text-align: center;
  border: 1px dashed var(--c-border);
  border-radius: var(--r-card);
}

/* ===== Scroll Reveal ===== */
.reveal-section,
.reveal-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal-section.is-visible,
.reveal-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  .reveal-section,
  .reveal-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-icon-blob { animation: none; }
  .marquee-track { animation: none; }
}

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .article-layout-grid,
  .topic-body-wrap,
  .tag-body-wrap,
  .about-body-wrap,
  .privacy-body-wrap {
    grid-template-columns: 1fr;
  }
  .article-aside,
  .topic-aside,
  .tag-aside,
  .about-aside,
  .privacy-aside {
    position: static;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--c-border);
  }
  .aside-sticky { flex-direction: row; flex-wrap: wrap; }
  .aside-block { flex: 1; min-width: 200px; }
}

@media (max-width: 768px) {
  html { font-size: 17px; }
  :root { --nav-width: 0px; }
  .side-strip { display: none; }
  .page-body { margin-left: 0; }

  .hero-content {
    padding: 2rem 1.2rem;
    flex-direction: column-reverse;
    justify-content: flex-start;
    gap: 1.5rem;
    min-height: auto;
  }
  .hero-text { text-align: left; }
  .hero-actions { justify-content: flex-start; }
  .hero-sub { margin-left: 0; }

  .topics-grid, .articles-grid {
    grid-template-columns: 1fr;
    padding: 0 1.2rem;
  }
  .section-header { padding: 0 1.2rem; }
  .wrap { padding: 0 1.2rem; }
  .content-section { padding: 1.5rem 0; }
  .children-section { padding: 1.5rem 1.2rem; }
  .tagged-section { padding: 1.5rem 1.2rem; }
  .related-section { padding: 2rem 1.2rem; }
  .related-section .related-card { width: 100%; }

  .topic-hero-content, .about-hero-content,
  .privacy-hero-content, .tag-hero-content { padding: 2rem 1.2rem; }
  .topic-hero-stickers, .about-hero-stickers { display: none; }

  .footer-cta-section { padding: 2rem 1.2rem; }
  .footer-meta-section { padding: 1.2rem; }
  .footer-cta-inner { flex-direction: column; align-items: flex-start; }

  .home-aside { margin: 1.5rem 1.2rem; }

  .nav-hamburger { top: 0.7rem; right: 0.7rem; }
}

@media (max-width: 480px) {
  html { font-size: 16px; }
  .hero-text h1 { font-size: 1.7rem; }
  .hero-icon-blob { width: 80px; height: 80px; }
  .blob-txt { font-size: 2rem; }
  .main-nav ol { gap: 0.3rem; }
  .main-nav li a { padding: 0.5rem 1rem; }
}