@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

/* ===== CSS 变量 ===== */
:root {
  --c-primary: #99ffcc;
  --c-accent: #00ff41;
  --c-dark: #001e3c;
  --c-dark-2: #002a52;
  --c-dark-3: #003366;
  --c-text: #e0f7ef;
  --c-text-muted: #7dbfa0;
  --c-text-dim: #4a8a6a;
  --c-border: rgba(153, 255, 204, 0.15);
  --c-border-bright: rgba(153, 255, 204, 0.35);
  --c-card-bg: rgba(0, 42, 82, 0.7);
  --c-card-hover: rgba(0, 51, 102, 0.9);
  --c-glow: rgba(153, 255, 204, 0.12);
  --c-glow-bright: rgba(0, 255, 65, 0.2);
  --sidebar-w: 240px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4), 0 0 0 1px var(--c-border);
  --shadow-card-hover: 0 8px 40px rgba(0,0,0,0.5), 0 0 0 1px var(--c-border-bright), 0 0 20px var(--c-glow);
  --font: 'IBM Plex Sans', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--c-dark);
  color: var(--c-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(0,255,65,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(153,255,204,0.05) 0%, transparent 50%);
}

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--c-accent); }
a:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 3px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, menu { list-style: none; }

/* ===== 点阵背景 ===== */
@keyframes dot-pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.02); opacity: 1; }
}

@keyframes cell-glow {
  0%, 100% { box-shadow: var(--shadow-card); }
  50% { box-shadow: var(--shadow-card-hover); }
}

@keyframes slide-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== 页面骨架 ===== */
.page-shell {
  display: flex;
  min-height: 100vh;
}

/* ===== 侧边导航 ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: linear-gradient(180deg, rgba(0,10,28,0.98) 0%, rgba(0,30,60,0.98) 100%);
  border-right: 1px solid var(--c-border);
  z-index: 100;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.sidebar[open] {
  overflow-y: auto;
}

.sidebar__toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--c-border);
  list-style: none;
  min-height: 64px;
  user-select: none;
}

.sidebar__toggle::-webkit-details-marker { display: none; }
.sidebar__toggle::marker { display: none; }

.sidebar__brand {
  flex-shrink: 0;
}

.brand-monogram {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: var(--c-dark);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.05em;
  border-radius: 50%;
  animation: breathe 4s ease-in-out infinite;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}

.sidebar__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  padding: 4px;
}

.sidebar__hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.sidebar[open] .sidebar__hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.sidebar[open] .sidebar__hamburger span:nth-child(2) {
  opacity: 0;
}
.sidebar[open] .sidebar__hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.sidebar__menu {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 8px 0;
  overflow-y: auto;
}

.sidebar__search {
  padding: 12px 12px 8px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 4px;
}

.search-form {
  display: flex;
  align-items: center;
  background: rgba(153,255,204,0.07);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-form:focus-within {
  border-color: var(--c-border-bright);
  box-shadow: 0 0 0 2px var(--c-glow);
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--c-text);
  font-family: var(--font);
  font-size: 13px;
  padding: 8px 10px;
  outline: none;
  min-width: 0;
}

.search-input::placeholder { color: var(--c-text-muted); }

.search-btn {
  background: transparent;
  border: none;
  color: var(--c-text-muted);
  cursor: pointer;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
  min-height: 40px;
  min-width: 40px;
  justify-content: center;
}
.search-btn:hover { color: var(--c-primary); }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  color: var(--c-text-muted);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4;
  transition: color var(--transition), background var(--transition);
  border-left: 2px solid transparent;
  min-height: 44px;
}

.nav-link:hover {
  color: var(--c-primary);
  background: var(--c-glow);
  border-left-color: var(--c-primary);
}

.nav-link--active {
  color: var(--c-primary);
  background: var(--c-glow);
  border-left-color: var(--c-accent);
  font-weight: 500;
}

.nav-icon {
  flex-shrink: 0;
  color: inherit;
  opacity: 0.8;
}

.nav-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== 内容区 ===== */
.content-area {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.main-content {
  flex: 1;
  display: flex;
  gap: 0;
  align-items: flex-start;
  padding: 0;
}

.wrap {
  flex: 1;
  min-width: 0;
  padding: 0 32px 48px;
  max-width: 900px;
}

/* ===== 侧边辅助栏 ===== */
.sidebar-aside {
  width: 240px;
  flex-shrink: 0;
  padding: 32px 16px 48px;
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}

.aside-block {
  margin-bottom: 28px;
}

.aside-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--c-border);
}

.aside-title span {
  color: inherit;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.aside-links li a {
  display: block;
  font-size: 13px;
  color: var(--c-text-muted);
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  line-height: 1.4;
}

.aside-links li a:hover {
  color: var(--c-primary);
  background: var(--c-glow);
}

/* ===== Hero 区块 ===== */
.hero-section {
  padding: 48px 0 32px;
  position: relative;
  overflow: hidden;
  min-height: 45vh;
  display: flex;
  align-items: center;
}

.hero-article {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
}

.hero__eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 16px;
  animation: fade-in 0.6s ease both;
}

.hero__h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--c-primary);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  animation: slide-in-up 0.7s ease both 0.1s;
  text-shadow: 0 0 40px rgba(153,255,204,0.3);
}

.hero__desc {
  font-size: 1.1rem;
  color: var(--c-text-muted);
  max-width: 600px;
  margin: 0 auto 28px;
  line-height: 1.7;
  animation: slide-in-up 0.7s ease both 0.2s;
}

.hero__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  animation: slide-in-up 0.7s ease both 0.3s;
}

.hero__dot-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(circle, rgba(153,255,204,0.18) 1px, transparent 1px);
  background-size: 28px 28px;
  animation: dot-pulse 6s ease-in-out infinite;
  pointer-events: none;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: var(--c-dark);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-xl);
  transition: transform var(--transition), box-shadow var(--transition);
  min-height: 44px;
}
.btn-primary:hover {
  color: var(--c-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,255,65,0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  background: transparent;
  color: var(--c-primary);
  font-weight: 500;
  font-size: 15px;
  border: 1px solid var(--c-border-bright);
  border-radius: var(--radius-xl);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  min-height: 44px;
}
.btn-secondary:hover {
  background: var(--c-glow);
  border-color: var(--c-primary);
  color: var(--c-primary);
  transform: translateY(-2px);
}

/* ===== Section 标题 ===== */
.section-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--c-primary);
  letter-spacing: 0.03em;
}

.section-title__text {
  white-space: nowrap;
  flex-shrink: 0;
}

.section-title__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--c-border-bright), transparent);
}

/* ===== 卡片网格 ===== */
.cell-grid {
  display: grid;
  gap: 16px;
  margin-bottom: 40px;
}

.cell-grid--categories {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.cell-grid--entries {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.cell-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  cursor: pointer;
  color: var(--c-text);
  text-decoration: none;
}

.cell-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-card-hover);
  background: var(--c-card-hover);
  border-color: var(--c-border-bright);
  color: var(--c-text);
}

.cell-card__title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-primary);
  line-height: 1.4;
}

.cell-card__desc {
  display: block;
  font-size: 13px;
  color: var(--c-text-muted);
  line-height: 1.6;
}

.cell-card__meta,
.cell-card__cat {
  display: inline-block;
  font-size: 11px;
  color: var(--c-text-dim);
  background: rgba(153,255,204,0.06);
  border: 1px solid var(--c-border);
  border-radius: 4px;
  padding: 2px 8px;
  margin-top: 4px;
}

.cell-card__date {
  display: block;
  font-size: 12px;
  color: var(--c-text-dim);
  margin-top: auto;
  padding-top: 8px;
}

/* ===== 子页卡片（child-grid）===== */
.child-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.child-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 24px;
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  color: var(--c-text);
  position: relative;
  overflow: hidden;
}

.child-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--c-primary), var(--c-accent));
  border-radius: 0 2px 2px 0;
  opacity: 0;
  transition: opacity var(--transition);
}

.child-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--c-border-bright);
  color: var(--c-text);
}

.child-card:hover::before { opacity: 1; }

.child-card__title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-primary);
  line-height: 1.4;
}

.child-card__desc {
  display: block;
  font-size: 13px;
  color: var(--c-text-muted);
  line-height: 1.6;
}

.child-card__date {
  display: block;
  font-size: 12px;
  color: var(--c-text-dim);
  margin-top: auto;
  padding-top: 8px;
}

/* ===== 页面头部通用 ===== */
.page-header-section,
.entry-header-section,
.tag-header-section,
.about-header-section,
.privacy-header-section {
  padding: 36px 0 24px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 32px;
}

.page-header-article,
.entry-header-article,
.tag-header-article,
.about-header-article,
.privacy-header-article {
  max-width: 720px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--c-text-dim);
  margin-bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

.breadcrumb a {
  color: var(--c-text-muted);
  transition: color var(--transition);
}
.breadcrumb a:hover { color: var(--c-primary); }

.page-h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.25;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.page-desc {
  font-size: 16px;
  color: var(--c-text-muted);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 12px;
}

.page-meta {
  font-size: 13px;
  color: var(--c-text-dim);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.meta-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(153,255,204,0.07);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  padding: 3px 12px;
  font-size: 12px;
  color: var(--c-text-muted);
}

/* ===== 条目特有 ===== */
.entry-cat-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: rgba(0,255,65,0.08);
  border: 1px solid rgba(0,255,65,0.2);
  border-radius: 4px;
  padding: 3px 10px;
  margin-bottom: 10px;
}

.entry-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.entry-date {
  font-size: 13px;
  color: var(--c-text-dim);
}

.entry-date--mod {
  color: var(--c-text-dim);
  opacity: 0.7;
}

.tag-eyebrow,
.about-eyebrow,
.privacy-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 10px;
}

/* ===== 正文区 ===== */
.content-section {
  margin-bottom: 40px;
}

.prose-article {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text);
  max-width: 720px;
}

.prose-article h2 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--c-primary);
  margin: 2em 0 0.8em;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--c-border);
}

.prose-article h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--c-primary);
  margin: 1.6em 0 0.6em;
}

.prose-article p {
  margin-bottom: 1.2em;
}

.prose-article ul,
.prose-article ol {
  margin: 0.8em 0 1.2em 1.5em;
}

.prose-article li {
  margin-bottom: 0.5em;
  color: var(--c-text);
}

.prose-article strong {
  color: var(--c-primary);
  font-weight: 600;
}

.prose-article a {
  color: var(--c-primary);
  text-decoration: underline;
  text-decoration-color: rgba(153,255,204,0.3);
  text-underline-offset: 3px;
}
.prose-article a:hover {
  color: var(--c-accent);
  text-decoration-color: var(--c-accent);
}

.prose-article blockquote {
  border-left: 3px solid var(--c-primary);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: var(--c-glow);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-text-muted);
}

.prose-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 14px;
}

.prose-article th,
.prose-article td {
  padding: 10px 14px;
  border: 1px solid var(--c-border);
  text-align: left;
}

.prose-article th {
  background: rgba(153,255,204,0.06);
  color: var(--c-primary);
  font-weight: 600;
}

.prose-article code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875em;
  background: rgba(153,255,204,0.08);
  border: 1px solid var(--c-border);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--c-accent);
}

/* ===== 图片 ===== */
.entry-hero-section {
  margin-bottom: 32px;
}
.entry-hero-article {
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.hero-img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ===== 标签云 ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud--large {
  gap: 10px;
  margin-bottom: 32px;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: rgba(153,255,204,0.07);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--c-text-muted);
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
  min-height: 32px;
}

.tag-pill:hover {
  background: rgba(153,255,204,0.15);
  border-color: var(--c-border-bright);
  color: var(--c-primary);
  transform: translateY(-1px);
}

.tag-pill--active {
  background: rgba(153,255,204,0.15);
  border-color: var(--c-primary);
  color: var(--c-primary);
}

/* ===== 政策链接卡 ===== */
.policy-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.policy-link-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  color: var(--c-text);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  min-width: 200px;
}

.policy-link-card:hover {
  border-color: var(--c-border-bright);
  box-shadow: var(--shadow-card-hover);
  color: var(--c-text);
  transform: translateY(-3px);
}

.policy-link-card strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-primary);
}

.policy-link-card span {
  font-size: 13px;
  color: var(--c-text-muted);
}

/* ===== empty-note ===== */
.empty-note {
  color: var(--c-text-dim);
  font-size: 14px;
  padding: 20px 0;
}

/* ===== 页脚 ===== */
.site-footer {
  background: linear-gradient(180deg, transparent 0%, rgba(0,8,20,0.8) 100%);
  border-top: 1px solid var(--c-border);
  padding: 48px 32px 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--c-border);
}

.footer__brand-name {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1.1;
}

.footer__brand-desc {
  font-size: 14px;
  color: var(--c-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 320px;
}

.footer__address {
  font-style: normal;
  font-size: 13px;
  color: var(--c-text-dim);
  line-height: 1.8;
}

.footer__address a {
  color: var(--c-text-muted);
}
.footer__address a:hover { color: var(--c-primary); }

.footer__col-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--c-border);
}

.footer__col-title span { color: inherit; }

.footer__nav-col ul,
.footer__links-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__nav-col ul li a,
.footer__links-col ul li a {
  font-size: 14px;
  color: var(--c-text-muted);
  transition: color var(--transition), padding-left var(--transition);
  display: block;
  padding: 2px 0;
}

.footer__nav-col ul li a:hover,
.footer__links-col ul li a:hover {
  color: var(--c-primary);
  padding-left: 6px;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  font-size: 13px;
  color: var(--c-text-dim);
  flex-wrap: wrap;
  gap: 8px;
}

.footer__bottom-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.footer__bottom-links a {
  color: var(--c-text-dim);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 6px;
}
.footer__bottom-links a:hover { color: var(--c-primary); }

/* ===== Scroll reveal ===== */
.cell-card,
.child-card,
.policy-link-card {
  animation: fade-in 0.5s ease both;
}

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
  .sidebar-aside {
    width: 200px;
  }
  .wrap {
    padding: 0 24px 40px;
  }
}

@media (max-width: 900px) {
  :root {
    --sidebar-w: 0px;
  }

  .sidebar {
    width: 260px;
    transform: translateX(-100%);
    transition: transform var(--transition);
    z-index: 200;
  }

  .sidebar[open] {
    transform: translateX(0);
    width: 260px;
  }

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

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

  .sidebar-aside {
    width: 100%;
    position: static;
    max-height: none;
    padding: 0 24px 32px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
  }

  .aside-block {
    margin-bottom: 0;
  }

  .wrap {
    padding: 0 20px 32px;
    max-width: 100%;
  }

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

  .footer__brand-col {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .hero-section {
    min-height: 45vh;
    padding: 40px 0 28px;
  }

  .hero__h1 {
    font-size: 1.8rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .cell-grid--categories,
  .cell-grid--entries {
    grid-template-columns: 1fr;
  }

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

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer__brand-name {
    font-size: 1.6rem;
  }

  .site-footer {
    padding: 36px 20px 0;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .policy-links {
    flex-direction: column;
  }

  .policy-link-card {
    min-width: auto;
  }
}

@media (max-width: 375px) {
  .wrap {
    padding: 0 16px 28px;
  }

  .hero__h1 {
    font-size: 1.5rem;
  }

  .page-h1 {
    font-size: 1.4rem;
  }
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .brand-monogram {
    animation: none;
  }
  .hero__dot-grid {
    animation: none;
  }
}