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

/* =====================
   CSS 自定义属性
   ===================== */
:root {
  --c-primary: #56228b;
  --c-primary-light: #7a3dba;
  --c-primary-dim: rgba(86, 34, 139, 0.15);
  --c-accent: #8b4513;
  --c-accent-light: #b85e2a;
  --c-accent-dim: rgba(139, 69, 19, 0.12);
  --c-ink: #1f1726;
  --c-ink-80: rgba(31, 23, 38, 0.80);
  --c-ink-50: rgba(31, 23, 38, 0.50);
  --c-ink-20: rgba(31, 23, 38, 0.20);
  --c-bg: #f5f0fa;
  --c-surface: #fdfaff;
  --c-surface-2: #f0e8f8;
  --c-glass-bg: rgba(253, 250, 255, 0.72);
  --c-glass-border: rgba(86, 34, 139, 0.18);
  --c-text: #2a1f35;
  --c-text-muted: #6b5c7c;

  --nav-w: 240px;
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 24px;
  --r-xl: 28px;

  --shadow-soft: 0 4px 24px rgba(86, 34, 139, 0.10), 0 1px 4px rgba(31, 23, 38, 0.06);
  --shadow-card: 0 8px 32px rgba(86, 34, 139, 0.13), 0 2px 8px rgba(31, 23, 38, 0.08);
  --shadow-hover: 0 12px 40px rgba(86, 34, 139, 0.20), 0 4px 12px rgba(31, 23, 38, 0.10);

  --font-serif: 'Noto Serif TC', 'Georgia', serif;
  --font-sans: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;

  --transition-base: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text);
  background-color: var(--c-bg);
  background-image:
    radial-gradient(circle at 20% 20%, rgba(86, 34, 139, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 69, 19, 0.05) 0%, transparent 50%);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}
a:hover { color: var(--c-primary-light); }
a:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

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

ol, ul { list-style: none; }

/* =====================
   点阵底纹
   ===================== */
.hero-dot-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(86,34,139,0.18) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
  z-index: 0;
}

/* =====================
   整体布局
   ===================== */
.site-wrapper {
  display: flex;
  min-height: 100vh;
  align-items: stretch;
}

/* =====================
   左侧竖排导航
   ===================== */
.sidenav {
  width: var(--nav-w);
  min-height: 100vh;
  background: linear-gradient(180deg, var(--c-ink) 0%, #2d1a45 60%, #3a1a10 100%);
  display: flex;
  flex-direction: column;
  padding: 0 0 2rem 0;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  overflow-y: auto;
  box-shadow: 4px 0 24px rgba(31,23,38,0.25);
}

.sidenav-brand {
  padding: 1.75rem 1.25rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: #e8d5ff;
  line-height: 1.3;
  letter-spacing: 0.02em;
}
.brand-name:hover { color: #fff; }

.sidenav-list {
  padding: 1.25rem 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.sidenav-list li a {
  display: block;
  padding: 0.65rem 1rem;
  border-radius: var(--r-lg);
  font-size: 0.875rem;
  font-weight: 400;
  color: rgba(220, 200, 255, 0.80);
  line-height: 1.4;
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-bounce);
  min-height: 42px;
  display: flex;
  align-items: center;
}

.sidenav-list li a:hover,
.sidenav-list li a.active {
  background: linear-gradient(135deg, rgba(86,34,139,0.55), rgba(139,69,19,0.30));
  color: #fff;
  transform: translateX(3px);
}

.sidenav-list li a.active {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
  color: #fff;
  font-weight: 500;
  box-shadow: 0 4px 16px rgba(86,34,139,0.35);
}

.sidenav-footer-note {
  padding: 1rem 1.5rem;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.25);
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: auto;
}

/* =====================
   页面主体区
   ===================== */
.page-body {
  margin-left: var(--nav-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* =====================
   main 布局：aside 在左
   ===================== */
main {
  display: flex;
  flex-direction: row-reverse;
  gap: 2rem;
  padding: 2rem 2.5rem 3rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  flex: 1;
}

main > article {
  flex: 1;
  min-width: 0;
}

main > article > div {
  margin-bottom: 3rem;
}
main > article > div:last-child {
  margin-bottom: 0;
}

/* =====================
   侧边栏
   ===================== */
.page-aside {
  width: 220px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.aside-block {
  background: var(--c-glass-bg);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--r-xl);
  padding: 1.25rem 1rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.aside-block h4 {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.aside-block p {
  font-size: 0.825rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.aside-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.aside-nav-list li a {
  display: block;
  font-size: 0.825rem;
  color: var(--c-ink-80);
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
  transition: background var(--transition-base), color var(--transition-base);
  min-height: 32px;
  display: flex;
  align-items: center;
}

.aside-nav-list li a:hover {
  background: var(--c-primary-dim);
  color: var(--c-primary);
}

.aside-related-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.aside-related-list li a {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  font-size: 0.8rem;
  color: var(--c-ink-80);
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--c-ink-20);
  transition: color var(--transition-base);
}
.aside-related-list li a:hover { color: var(--c-primary); }
.aside-related-list li a small {
  font-size: 0.72rem;
  color: var(--c-text-muted);
}

.aside-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.aside-link {
  display: inline-block;
  font-size: 0.825rem;
  color: var(--c-primary);
  font-weight: 500;
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--c-primary-dim);
  transition: border-color var(--transition-base);
}
.aside-link:hover { border-color: var(--c-primary); }

/* =====================
   Hero — 首页
   ===================== */
.hero-home {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 3rem 3rem 3rem 2.5rem;
  overflow: hidden;
  background: linear-gradient(135deg, #1f1726 0%, #2d1445 50%, #3a1a10 100%);
  gap: 2rem;
}

.hero-blob {
  position: absolute;
  left: 0;
  top: 0;
  width: 60%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.7;
}
.hero-blob svg { width: 100%; height: 100%; }

.hero-content {
  position: relative;
  z-index: 2;
  text-align: right;
  max-width: 520px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: rgba(200, 160, 255, 0.80);
  background: rgba(86,34,139,0.30);
  border: 1px solid rgba(86,34,139,0.40);
  border-radius: 20px;
  padding: 0.3rem 0.9rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #f0e6ff;
  line-height: 1.3;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.hero-lead {
  font-size: 0.95rem;
  color: rgba(220, 200, 255, 0.75);
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.hero-cta-row {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.hero-illo {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  opacity: 0.85;
}

/* =====================
   页头（非首页）
   ===================== */
.page-header {
  position: relative;
  padding: 2.5rem 3rem 2rem;
  background: linear-gradient(135deg, #1f1726 0%, #2d1445 70%);
  overflow: hidden;
}

.page-header--about,
.page-header--legal {
  background: linear-gradient(135deg, #1f1726 0%, #2a1a3a 50%, #2d1a10 100%);
}

.page-header-inner {
  position: relative;
  z-index: 2;
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-weight: 700;
  color: #f0e6ff;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.page-header-desc {
  font-size: 0.925rem;
  color: rgba(220, 200, 255, 0.72);
  line-height: 1.65;
  max-width: 640px;
}

.policy-date {
  font-size: 0.8rem;
  color: rgba(200, 180, 240, 0.60);
  margin-top: 0.5rem;
}

/* =====================
   面包屑
   ===================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: rgba(200, 160, 255, 0.65);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: rgba(200, 160, 255, 0.80);
  transition: color var(--transition-base);
}
.breadcrumb a:hover { color: #d4a8ff; }
.breadcrumb span { color: rgba(200, 160, 255, 0.50); }

/* =====================
   按钮
   ===================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
  color: #fff;
  border-radius: var(--r-lg);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  min-height: 44px;
  transition: transform var(--transition-bounce), box-shadow var(--transition-base), filter var(--transition-base);
  box-shadow: 0 4px 16px rgba(86,34,139,0.30);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(86,34,139,0.40);
  filter: brightness(1.1);
  color: #fff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  background: rgba(255,255,255,0.08);
  color: #d4a8ff;
  border: 1.5px solid rgba(200,160,255,0.30);
  border-radius: var(--r-lg);
  font-size: 0.9rem;
  font-weight: 500;
  min-height: 44px;
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-bounce);
}
.btn-secondary:hover {
  background: rgba(86,34,139,0.25);
  color: #fff;
  transform: translateY(-2px);
}

/* =====================
   区块标题
   ===================== */
h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--c-ink);
  line-height: 1.35;
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}

.subtitle {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

/* =====================
   玻璃拟态卡片
   ===================== */
.card-glass,
.child-card-glass {
  background: var(--c-glass-bg);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--r-xl);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform var(--transition-bounce), box-shadow var(--transition-base), border-color var(--transition-base);
  box-shadow: var(--shadow-card);
}

.card-glass:hover,
.child-card-glass:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(86,34,139,0.35);
}

/* =====================
   专题卡片网格（首页）
   ===================== */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card-link {
  display: block;
}

.card-glass {
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.card-glass h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-ink);
  line-height: 1.35;
}

.card-desc {
  font-size: 0.825rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  flex: 1;
}

.card-arrow {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-primary);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.25rem;
}

.card-arrow::after {
  content: '→';
  transition: transform var(--transition-bounce);
}

.card-link:hover .card-arrow::after {
  transform: translateX(4px);
}

/* =====================
   文章列表（首页）
   ===================== */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--c-ink-20);
  border-radius: var(--r-sm);
  transition: background var(--transition-base), color var(--transition-base);
}

.article-item a:hover {
  background: var(--c-primary-dim);
}

.article-title {
  font-size: 0.9rem;
  color: var(--c-text);
  font-weight: 500;
  flex: 1;
}

.article-item small {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  white-space: nowrap;
}

/* =====================
   子页列表（专题/标签页）
   ===================== */
.children-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.child-link {
  display: block;
}

.child-card-glass {
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.child-num {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-primary-dim);
  line-height: 1;
  flex-shrink: 0;
  width: 2.5rem;
  text-align: right;
  letter-spacing: -0.02em;
  color: rgba(86,34,139,0.35);
}

.child-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.child-info strong {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.4;
}

.child-info small {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  line-height: 1.55;
}

.child-date {
  font-size: 0.75rem;
  color: var(--c-accent);
  margin-top: 0.2rem;
}

/* =====================
   正文内容
   ===================== */
.content-prose {
  max-width: 720px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}

.content-prose h2,
.content-prose h3 {
  font-family: var(--font-serif);
  margin: 2rem 0 0.75rem;
  color: var(--c-ink);
}

.content-prose h2 { font-size: 1.3rem; }
.content-prose h3 { font-size: 1.1rem; }

.content-prose p {
  margin-bottom: 1.1rem;
}

.content-prose ul,
.content-prose ol {
  margin: 0.75rem 0 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.content-prose ul { list-style: disc; }
.content-prose ol { list-style: decimal; }

.content-prose li {
  font-size: 0.95rem;
  line-height: 1.7;
}

.content-prose a {
  color: var(--c-primary);
  border-bottom: 1px solid var(--c-primary-dim);
  transition: border-color var(--transition-base);
}
.content-prose a:hover { border-color: var(--c-primary); }

.content-prose blockquote {
  border-left: 3px solid var(--c-primary);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: var(--c-text-muted);
  font-style: italic;
}

.content-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.5rem 0;
}

.content-prose th,
.content-prose td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--c-ink-20);
  text-align: left;
}

.content-prose th {
  background: var(--c-primary-dim);
  font-weight: 600;
  color: var(--c-primary);
}

/* =====================
   文章页头部
   ===================== */
.article-header-section {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--c-ink-20);
  margin-bottom: 2rem !important;
}

.article-meta {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.meta-item {
  font-size: 0.82rem;
  color: var(--c-text-muted);
}

.meta-item time {
  color: var(--c-accent);
  font-weight: 500;
}

.article-hero-wrap {
  margin-top: 1.5rem;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.article-hero-img {
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
}

.article-body-section h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  font-weight: 700;
  color: var(--c-ink);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

/* =====================
   标签
   ===================== */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--c-ink-20);
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.8rem;
  background: var(--c-primary-dim);
  border: 1px solid var(--c-glass-border);
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--c-primary);
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-bounce);
  min-height: 32px;
}
.tag-chip:hover {
  background: var(--c-primary);
  color: #fff;
  transform: translateY(-2px);
}

/* =====================
   About 页链接列表
   ===================== */
.about-link-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about-link-list li a {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1rem 1.25rem;
  background: var(--c-glass-bg);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--r-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--transition-bounce), box-shadow var(--transition-base);
}

.about-link-list li a:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-soft);
}

.about-link-list li a strong {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-text);
}

.about-link-list li a small {
  font-size: 0.82rem;
  color: var(--c-text-muted);
}

/* =====================
   页脚
   ===================== */
footer {
  margin-top: auto;
  border-top: 1px solid var(--c-ink-20);
}

.footer-cta {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
  padding: 2rem 3rem;
}

.footer-cta-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-cta-inner span {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: rgba(255,255,255,0.92);
  letter-spacing: 0.02em;
}

.footer-cta .btn-primary {
  background: rgba(255,255,255,0.15);
  border: 1.5px solid rgba(255,255,255,0.35);
  box-shadow: none;
}

.footer-cta .btn-primary:hover {
  background: rgba(255,255,255,0.25);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.footer-meta {
  padding: 1.25rem 3rem;
  background: var(--c-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8rem;
  color: rgba(200,180,240,0.55);
}

.footer-meta a {
  font-size: 0.8rem;
  color: rgba(200,180,240,0.65);
  transition: color var(--transition-base);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 0.25rem;
}
.footer-meta a:hover { color: #d4a8ff; }

/* =====================
   Stagger 动效
   ===================== */
.stagger-item {
  opacity: 0;
  transform: translateY(16px);
  animation: staggerIn 0.45s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.10s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.20s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.30s; }
.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.stagger-item:nth-child(8) { animation-delay: 0.40s; }

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

@media (prefers-reduced-motion: reduce) {
  .stagger-item {
    opacity: 1;
    transform: none;
    animation: none;
  }
  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* =====================
   响应式：平板
   ===================== */
@media (max-width: 1024px) {
  :root { --nav-w: 200px; }

  main {
    padding: 1.5rem 1.75rem 2.5rem;
    gap: 1.5rem;
  }

  .page-aside { width: 190px; }

  .hero-home {
    padding: 2.5rem 2rem;
  }

  .footer-cta { padding: 1.75rem 2rem; }
  .footer-meta { padding: 1rem 2rem; }
  .page-header { padding: 2rem 2rem 1.75rem; }
}

/* =====================
   响应式：手机
   ===================== */
@media (max-width: 768px) {
  :root { --nav-w: 0px; }

  body { padding-top: 60px; }

  .sidenav {
    width: 100%;
    min-height: auto;
    height: 60px;
    flex-direction: row;
    align-items: center;
    padding: 0 1rem;
    overflow: hidden;
    position: fixed;
    bottom: auto;
    top: 0;
  }

  .sidenav.open {
    height: auto;
    flex-direction: column;
    align-items: stretch;
    overflow-y: auto;
    max-height: 100vh;
    padding: 0 0 1.5rem;
  }

  .sidenav-brand {
    flex: 1;
    border-bottom: none;
    padding: 0.75rem 0;
  }

  .sidenav.open .sidenav-brand {
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 1.25rem 1rem;
  }

  .sidenav-list {
    display: none;
    padding: 0.75rem;
  }

  .sidenav.open .sidenav-list {
    display: flex;
  }

  .sidenav-footer-note { display: none; }

  .sidenav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.08);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    color: #d4a8ff;
    font-size: 1.3rem;
    flex-shrink: 0;
  }

  .page-body {
    margin-left: 0;
  }

  main {
    flex-direction: column;
    padding: 1.25rem 1rem 2rem;
    gap: 1.5rem;
  }

  .page-aside {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .aside-block {
    flex: 1;
    min-width: 140px;
  }

  .hero-home {
    min-height: auto;
    padding: 2rem 1.25rem;
    flex-direction: column-reverse;
    align-items: flex-end;
    gap: 1rem;
  }

  .hero-illo { display: none; }

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

  .topic-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.875rem;
  }

  .hero-cta-row { flex-wrap: wrap; }

  .page-header { padding: 1.5rem 1.25rem; }

  .footer-cta {
    padding: 1.5rem 1.25rem;
  }
  .footer-cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .footer-meta {
    padding: 1rem 1.25rem;
    flex-direction: column;
    gap: 0.6rem;
  }
}

@media (max-width: 480px) {
  .topic-grid {
    grid-template-columns: 1fr;
  }

  .child-card-glass {
    flex-direction: column;
    gap: 0.5rem;
  }

  .child-num {
    width: auto;
    text-align: left;
    font-size: 1rem;
  }
}

/* =====================
   app.js 增强的导航切换按钮（预留）
   ===================== */
.sidenav-toggle { display: none; }

@media (max-width: 768px) {
  .sidenav-toggle { display: flex; }
}