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

/* ── 变量 ── */
:root {
  --mint: #b4fde1;
  --sky: #add8e6;
  --ink: #172620;
  --ink-soft: #2a3d35;
  --ink-muted: #4a6358;
  --mint-dark: #7de8c0;
  --sky-dark: #7ab8cc;
  --bg: #edfff6;
  --bg2: #f0faff;
  --white: #ffffff;
  --radius-card: 24px;
  --radius-btn: 16px;
  --radius-sm: 12px;
  --border-w: 3px;
  --shadow-clay: 4px 6px 16px rgba(23,38,32,0.13), inset -2px -2px 8px rgba(23,38,32,0.07);
  --shadow-card-hover: 6px 10px 24px rgba(23,38,32,0.18), inset -2px -2px 8px rgba(23,38,32,0.09);
  --font-main: 'Figtree', 'Noto Sans', system-ui, -apple-system, sans-serif;
  --transition-press: all 200ms cubic-bezier(0.34,1.56,0.64,1);
}

/* ── 重置 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── 点阵底纹工具 ── */
.dotgrid-bg {
  background-image: radial-gradient(circle, rgba(23,38,32,0.08) 1.2px, transparent 1.2px);
  background-size: 22px 22px;
}

/* ── 网站包装 ── */
.site-wrapper { display: flex; flex-direction: column; min-height: 100vh; }

/* ── 顶部导航 ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(237,255,246,0.92);
  backdrop-filter: blur(12px);
  border-bottom: var(--border-w) solid var(--mint);
  box-shadow: 0 3px 12px rgba(23,38,32,0.08);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand-area {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.brand-logo { border-radius: 8px; }
.brand-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--mint), var(--sky));
  border-radius: 10px;
  border: var(--border-w) solid var(--ink);
  font-size: 18px;
  font-weight: 700;
  box-shadow: var(--shadow-clay);
  color: var(--ink);
}
.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

/* 导航 ol > li > a */
.main-nav { flex: 1; overflow: hidden; }
.main-nav ol {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 4px 0;
}
.main-nav ol::-webkit-scrollbar { display: none; }
.main-nav ol li { flex-shrink: 0; }
.main-nav ol li a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  border: 2px solid transparent;
  transition: var(--transition-press);
  min-height: 40px;
  display: flex;
  align-items: center;
  white-space: nowrap;
}
.main-nav ol li a:hover,
.main-nav ol li a[aria-current="page"] {
  background: linear-gradient(135deg, var(--mint), var(--sky));
  border-color: var(--ink);
  color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  transform: translateY(-1px);
}

/* 搜索框 */
.header-search { flex-shrink: 0; }
.search-form {
  display: flex;
  align-items: center;
  gap: 0;
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 3px 3px 0 var(--mint-dark);
  background: var(--white);
}
.search-input {
  padding: 8px 12px;
  font-size: 14px;
  border: none;
  outline: none;
  background: transparent;
  color: var(--ink);
  width: 160px;
  font-family: var(--font-main);
  min-height: 40px;
}
.search-btn {
  padding: 8px 12px;
  background: linear-gradient(135deg, var(--mint), var(--sky));
  border-left: var(--border-w) solid var(--ink);
  font-size: 14px;
  min-height: 40px;
  min-width: 40px;
  transition: var(--transition-press);
}
.search-btn:hover { background: var(--mint-dark); }

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  border: var(--border-w) solid var(--ink);
  background: var(--white);
  min-height: 40px;
  min-width: 40px;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 200ms ease;
}

/* ── 粘性锚点条 ── */
.sticky-anchor-bar {
  position: sticky;
  top: 64px;
  z-index: 90;
  background: rgba(173,216,230,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--sky-dark);
  padding: 8px 0;
}
.anchor-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.anchor-type-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--mint);
  border: 2px solid var(--ink);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
}
.anchor-type-feature { background: var(--sky); }
.anchor-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pub-date, .mod-date {
  font-size: 12px;
  color: var(--ink-muted);
  font-weight: 400;
}

/* ── Hero（首页） ── */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, var(--mint) 0%, var(--sky) 100%);
  border-bottom: var(--border-w) solid var(--ink);
  overflow: hidden;
  min-height: 45vh;
  display: flex;
  align-items: center;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(23,38,32,0.07) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  display: flex;
  align-items: center;
  gap: 48px;
  width: 100%;
}
.hero-text { flex: 1; }
.hero-h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}
.hero-desc {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 520px;
  margin-bottom: 28px;
  line-height: 1.7;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  background: var(--ink);
  color: var(--mint);
  border-radius: var(--radius-btn);
  border: var(--border-w) solid var(--ink);
  font-size: 16px;
  font-weight: 700;
  box-shadow: 4px 4px 0 var(--mint-dark);
  transition: var(--transition-press);
  min-height: 48px;
}
.hero-cta:hover {
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 var(--mint-dark);
}
.hero-art {
  flex-shrink: 0;
  position: relative;
  width: 200px;
  height: 160px;
}
.hero-bubble {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  border: var(--border-w) solid var(--ink);
  border-radius: 50%;
  background: var(--white);
  box-shadow: var(--shadow-clay);
  animation: float-clay 3s ease-in-out infinite;
  color: var(--ink);
}
.bubble-1 { width: 80px; height: 80px; top: 0; left: 10px; font-size: 28px; animation-delay: 0s; }
.bubble-2 { width: 68px; height: 68px; top: 50px; left: 100px; font-size: 13px; animation-delay: 0.6s; }
.bubble-3 { width: 60px; height: 60px; top: 95px; left: 30px; font-size: 13px; animation-delay: 1.2s; }
.hero-dots { display: none; }

@keyframes float-clay {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

/* ── About Hero ── */
.about-hero {
  background: linear-gradient(135deg, var(--sky) 0%, var(--mint) 100%);
  border-bottom: var(--border-w) solid var(--ink);
  padding: 48px 20px;
  position: relative;
  overflow: hidden;
}
.about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(23,38,32,0.06) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
  pointer-events: none;
}
.about-hero-inner {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.about-hero-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: var(--white);
  border: var(--border-w) solid var(--ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  box-shadow: var(--shadow-clay);
  color: var(--ink);
}
.about-h1 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}
.about-lead {
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 12px;
}

/* ── 带侧边栏布局 ── */
.content-with-aside {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px;
  display: flex;
  gap: 28px;
  align-items: flex-start;
  flex: 1;
}

/* 侧边栏（内容左侧） */
.content-aside {
  width: 240px;
  flex-shrink: 0;
  position: sticky;
  top: 120px;
}
.aside-inner {
  background: var(--white);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius-card);
  padding: 20px;
  box-shadow: var(--shadow-clay);
}
.aside-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--mint);
}
.aside-title-sm { margin-top: 20px; }
.aside-guide-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.aside-link {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: var(--transition-press);
  min-height: 40px;
}
.aside-link strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  line-height: 1.4;
}
.aside-link span {
  font-size: 12px;
  color: var(--ink-muted);
  display: block;
  margin-top: 2px;
}
.aside-link:hover {
  background: linear-gradient(135deg, rgba(180,253,225,0.6), rgba(173,216,230,0.6));
  border-color: var(--mint-dark);
}
.aside-link.is-active {
  background: linear-gradient(135deg, var(--mint), var(--sky));
  border-color: var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
}
.aside-link.is-active strong { color: var(--ink); font-weight: 700; }

/* ── 主内容区 ── */
.main-content { flex: 1; min-width: 0; }

/* main > section.wrap > div > article 四层 */
.wrap {}
.content-section {}
.page-article {
  background: var(--white);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius-card);
  padding: 36px 40px;
  box-shadow: var(--shadow-clay);
}

/* 文章头部 */
.article-header { margin-bottom: 28px; }
.article-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.type-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
}
.type-guide { background: var(--mint); color: var(--ink); }
.type-feature { background: var(--sky); color: var(--ink); }
.type-faq { background: #fff0b3; color: var(--ink); }
.type-privacy { background: #e8e8e8; color: var(--ink); }
.article-h1 {
  font-size: clamp(22px, 3.5vw, 34px);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.25;
  margin-bottom: 10px;
}
.article-lead {
  font-size: 16px;
  color: var(--ink-muted);
  line-height: 1.7;
}
.hero-h1 { }

/* ── 富文本正文 ── */
.prose { font-size: 16px; line-height: 1.8; color: var(--ink-soft); }
.prose h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin: 32px 0 14px;
  padding-left: 14px;
  border-left: 4px solid var(--mint-dark);
}
.prose h2 span { display: inline; }
.prose h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 24px 0 10px;
}
.prose h3 span { display: inline; }
.prose p { margin-bottom: 16px; }
.prose ul, .prose ol {
  margin: 14px 0 18px 20px;
  list-style: disc;
}
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 8px; }
.prose strong { font-weight: 700; color: var(--ink); }
.prose a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--mint-dark);
  text-underline-offset: 3px;
  font-weight: 500;
}
.prose a:hover { text-decoration-color: var(--sky-dark); }
.prose blockquote {
  margin: 20px 0;
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(180,253,225,0.3), rgba(173,216,230,0.3));
  border-left: 4px solid var(--mint-dark);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--ink-muted);
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
}
.prose th {
  background: linear-gradient(135deg, var(--mint), var(--sky));
  padding: 10px 14px;
  text-align: left;
  border: 2px solid var(--ink);
  font-weight: 700;
}
.prose td {
  padding: 10px 14px;
  border: 2px solid rgba(23,38,32,0.15);
}
.prose tr:nth-child(even) td { background: rgba(180,253,225,0.15); }
.prose code {
  background: rgba(173,216,230,0.4);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 14px;
  font-family: 'Courier New', monospace;
}
.prose pre {
  background: var(--ink);
  color: var(--mint);
  padding: 20px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 18px 0;
}
.prose pre code { background: none; color: inherit; padding: 0; }
.prose img {
  border-radius: var(--radius-sm);
  border: var(--border-w) solid var(--ink);
  box-shadow: var(--shadow-clay);
  margin: 16px 0;
}
.faq-prose h2 { font-size: 19px; margin: 26px 0 10px; }
.faq-prose h3 { font-size: 17px; }

/* ── 首页主内容（无aside版本） ── */
.main-content:only-child { width: 100%; }
.home-aside {
  background: linear-gradient(135deg, rgba(180,253,225,0.4), rgba(173,216,230,0.4));
  border-top: var(--border-w) solid var(--mint-dark);
  border-bottom: var(--border-w) solid var(--mint-dark);
  padding: 32px 20px;
}
.aside-inner { }
.home-aside .aside-inner {
  max-width: 1200px;
  margin: 0 auto;
  background: transparent;
  border: none;
  box-shadow: none;
  border-radius: 0;
  padding: 0;
}
.home-aside .aside-nav-list {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.home-aside .aside-link {
  background: var(--white);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius-card);
  padding: 14px 20px;
  box-shadow: var(--shadow-clay);
  flex: 1;
  min-width: 160px;
  transition: var(--transition-press);
}
.home-aside .aside-link:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}
.home-aside .aside-link strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  display: block;
  line-height: 1.4;
}

/* ── 卡片网格（子页列表） ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 16px;
}

/* 子页卡片：a > strong + span (不在 li 里) */
.child-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  background: var(--white);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-clay);
  transition: var(--transition-press);
  cursor: pointer;
}
.child-card:hover {
  transform: translate(-3px,-4px);
  box-shadow: var(--shadow-card-hover);
  background: linear-gradient(135deg, rgba(180,253,225,0.5), rgba(173,216,230,0.5));
}
.child-card strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}
.child-card .card-desc {
  font-size: 13px;
  color: var(--ink-muted);
  line-height: 1.5;
}
.child-card .card-thumb { margin-top: 8px; border-radius: 12px; }

/* ── 兄弟页链接 ── */
.sibling-link {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  margin-bottom: 6px;
  transition: var(--transition-press);
}
.sibling-link strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}
.sibling-link span {
  font-size: 12px;
  color: var(--ink-muted);
  display: block;
  margin-top: 2px;
}
.sibling-link:hover {
  background: rgba(180,253,225,0.5);
  border-color: var(--mint-dark);
}

/* ── 全站内容导航区（首页） ── */
.all-pages-section {
  padding: 48px 20px;
  background: var(--bg2);
  border-top: var(--border-w) solid var(--sky);
}
.all-pages-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.section-main-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 32px;
}
.section-main-title span { display: inline; }
.section-group { margin-bottom: 40px; }
.section-label {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--mint-dark), transparent);
  border-radius: 2px;
}
.section-label span { display: inline; }

/* ── 相关功能区 ── */
.related-features-section {
  padding: 40px 20px;
  background: var(--bg);
  border-top: var(--border-w) solid var(--mint);
}
.related-inner {
  max-width: 1200px;
  margin: 0 auto;
}

/* ── FAQ 底部 CTA ── */
.faq-cta-section {
  padding: 48px 20px;
  background: linear-gradient(135deg, rgba(180,253,225,0.3), rgba(173,216,230,0.3));
  border-top: var(--border-w) solid var(--mint-dark);
}
.faq-cta-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.faq-cta-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}
.faq-cta-title span { display: inline; }
.faq-cta-desc {
  font-size: 15px;
  color: var(--ink-muted);
  margin-bottom: 24px;
}
.faq-cta-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.faq-cta-card { max-width: 260px; text-align: left; }

/* ── 页脚 ── */
.site-footer {
  background: var(--ink);
  color: var(--bg);
  border-top: var(--border-w) solid var(--mint-dark);
  padding-top: 48px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.footer-brand-big {
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 700;
  color: var(--mint);
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 16px;
}
.footer-address {
  font-style: normal;
  font-size: 14px;
  color: rgba(180,253,225,0.7);
  line-height: 1.6;
  max-width: 320px;
}
.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links-col ul li a {
  font-size: 14px;
  color: rgba(180,253,225,0.8);
  transition: color 200ms ease;
  display: block;
  padding: 6px 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(180,253,225,0.1);
}
.footer-links-col ul li a:hover { color: var(--mint); }
.footer-bottom {
  border-top: 1px solid rgba(180,253,225,0.2);
  padding: 16px 20px;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-copy { font-size: 13px; color: rgba(180,253,225,0.5); }
.footer-links-bottom { font-size: 13px; color: rgba(180,253,225,0.6); }
.footer-links-bottom a { color: rgba(180,253,225,0.6); margin: 0 2px; }
.footer-links-bottom a:hover { color: var(--mint); }

/* ── Scroll Reveal 动效 ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 500ms ease, transform 500ms cubic-bezier(0.34,1.56,0.64,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 400ms ease, transform 400ms cubic-bezier(0.34,1.56,0.64,1);
}
.stagger-item.is-visible {
  opacity: 1;
  transform: none;
}

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

/* ── 响应式 ── */
@media (max-width: 960px) {
  .content-with-aside { flex-direction: column; }
  .content-aside {
    width: 100%;
    position: static;
    order: -1;
  }
  .aside-guide-links { flex-direction: row; flex-wrap: wrap; }
  .aside-link { min-width: 160px; flex: 1; }
}

@media (max-width: 768px) {
  .header-inner { gap: 12px; }
  .main-nav { display: none; }
  .main-nav.is-open { display: block; }
  .main-nav.is-open ol {
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(237,255,246,0.97);
    border-bottom: var(--border-w) solid var(--mint);
    padding: 12px 16px;
    box-shadow: 0 8px 24px rgba(23,38,32,0.12);
    z-index: 99;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }
  .main-nav.is-open ol li { width: 100%; }
  .main-nav.is-open ol li a { padding: 12px 16px; min-height: 48px; }
  .nav-toggle { display: flex; }
  .header-search { display: none; }
  .search-input { width: 120px; }
  .hero-art { display: none; }
  .hero-inner { padding: 40px 20px; }
  .page-article { padding: 24px 20px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .home-aside .aside-nav-list { gap: 10px; }
  .home-aside .aside-link { min-width: 140px; }
}

@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
  .brand-name { font-size: 14px; max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .hero-h1 { font-size: 26px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .faq-cta-links { flex-direction: column; align-items: center; }
  .content-with-aside { padding: 16px 14px; }
}

/* ── 首页内容区无aside布局修正 ── */
.main-content + .main-content { display: none; }

/* ── 图片 ── */
.card-thumb { width: 100%; height: 140px; object-fit: cover; }