/* ============================================================
   六叔公统计 - 站点主样式
   风格：简约大气 + 活泼渐变配色（紫 / 粉 / 青 / 琥珀）
   ============================================================ */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7fd;
  --surface: #ffffff;
  --text: #171a2b;
  --text-muted: #6b7185;
  --border: #e9ebf5;

  --primary: #6d5ef8;
  --primary-dark: #5647e6;
  --pink: #ff5c8a;
  --teal: #00cfa8;
  --amber: #ffb020;
  --grad: linear-gradient(135deg, #6d5ef8 0%, #ff5c8a 100%);
  --grad-soft: linear-gradient(135deg, rgba(109, 94, 248, 0.12), rgba(255, 92, 138, 0.12));

  --shadow-sm: 0 6px 18px rgba(23, 26, 43, 0.06);
  --shadow: 0 16px 44px rgba(23, 26, 43, 0.1);
  --radius: 18px;
  --radius-sm: 12px;
  --font: "Segoe UI", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.65;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: min(1140px, calc(100% - 2.5rem));
  margin: 0 auto;
}

/* === 顶部导航 === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 8px 26px rgba(23, 26, 43, 0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.brand-icon { width: 32px; height: 32px; flex-shrink: 0; }
.brand-name { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links {
  display: flex;
  gap: 1.6rem;
  margin-left: auto;
  font-size: 0.94rem;
  color: var(--text-muted);
  font-weight: 500;
}
.nav-links a { transition: color 0.2s; }
.nav-links a:hover { color: var(--primary); }
.header-actions { display: flex; gap: 0.6rem; margin-left: 0.5rem; }
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px; height: 42px;
  font-size: 1.15rem;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
}

/* 移动端下拉菜单（由 JS 从桌面导航克隆生成） */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1.25rem 1.25rem;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: 500;
}
.mobile-menu a.active,
.mobile-menu a:hover { background: var(--bg-soft); color: var(--primary); }
.mobile-menu .mobile-menu-cta {
  text-align: center;
  color: #fff;
  background: var(--grad);
  margin-top: 0.35rem;
}

/* === 按钮 === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s, border-color 0.18s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: #fff;
  background: var(--grad);
  box-shadow: 0 10px 24px rgba(109, 94, 248, 0.32);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(255, 92, 138, 0.34); }
.btn-outline {
  color: var(--primary);
  background: #fff;
  border-color: rgba(109, 94, 248, 0.32);
}
.btn-outline:hover { border-color: var(--primary); background: rgba(109, 94, 248, 0.06); }
.btn-ghost { color: var(--text-muted); }
.btn-ghost:hover { color: var(--primary); }
.btn-sm { padding: 0.5rem 1.05rem; font-size: 0.88rem; }
.btn-lg { padding: 0.92rem 1.75rem; font-size: 1.02rem; }
.btn-block { width: 100%; }

/* === 首屏 Hero === */
.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 3.5rem;
  background:
    radial-gradient(680px 420px at 8% -10%, rgba(109, 94, 248, 0.16), transparent 62%),
    radial-gradient(600px 420px at 100% 4%, rgba(255, 92, 138, 0.14), transparent 60%),
    radial-gradient(520px 380px at 60% 110%, rgba(0, 207, 168, 0.12), transparent 62%),
    linear-gradient(180deg, #fbfbff, #ffffff);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(109, 94, 248, 0.24);
  box-shadow: var(--shadow-sm);
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(0, 207, 168, 0.16);
}
.hero h1 {
  margin: 0 0 1.1rem;
  font-size: clamp(2.05rem, 4.2vw, 3.35rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
}
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub {
  margin: 0 0 1.9rem;
  color: var(--text-muted);
  font-size: 1.06rem;
  max-width: 34rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-bottom: 2.2rem; }
.hero-stats { display: flex; gap: 2.4rem; flex-wrap: wrap; }
.hero-stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-stat-label { font-size: 0.86rem; color: var(--text-muted); }

/* 首屏演示面板 */
.hero-panel { display: flex; justify-content: center; }
.dash {
  width: min(100%, 460px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.dash-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.85rem 1.1rem;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.dash-bar i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.dash-bar i:nth-child(1) { background: #ff5f57; }
.dash-bar i:nth-child(2) { background: #febc2e; }
.dash-bar i:nth-child(3) { background: #28c840; }
.dash-bar span { margin-left: auto; font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }
.dash-body { padding: 1.1rem; }
.dash-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.7rem; margin-bottom: 1rem; }
.dash-card {
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px solid var(--border);
}
.dash-card-label { font-size: 0.74rem; color: var(--text-muted); }
.dash-card-value { font-size: 1.22rem; font-weight: 700; margin-top: 0.15rem; }
.dash-card-trend { font-size: 0.72rem; margin-top: 0.2rem; }
.trend-up { color: #12a06a; }
.trend-warn { color: #e8590c; }
.dash-chart-label { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.dash-chart { display: block; width: 100%; height: 108px; }
.dash-heat { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.9rem; }
.dash-heat-row { display: grid; grid-template-columns: 42px 1fr 34px; align-items: center; gap: 0.6rem; font-size: 0.76rem; }
.dash-heat-name { font-weight: 600; color: var(--text); }
.dash-heat-track { height: 8px; border-radius: 999px; background: var(--bg-soft); overflow: hidden; }
.dash-heat-fill { height: 100%; border-radius: 999px; background: var(--grad); width: var(--w, 0%); transition: width 1s ease; }
.has-js .dash-heat-fill { width: 0; }
.dash-heat-val { text-align: right; color: var(--text-muted); }

/* === 数据带 === */
.highlights { padding: 0 0 1rem; }
.highlights-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.highlight-item {
  text-align: center;
  padding: 1.3rem 1rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.highlight-item strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1.2;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.highlight-item span { color: var(--text-muted); font-size: 0.86rem; }

/* === 通用版块 === */
.section { padding: 4.5rem 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 2.75rem; }
.section-label {
  display: inline-block;
  padding: 0.28rem 0.8rem;
  border-radius: 999px;
  background: var(--grad-soft);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.85rem;
}
.section-head h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.65rem, 3.2vw, 2.3rem);
  letter-spacing: -0.01em;
}
.section-head p { margin: 0; color: var(--text-muted); }

/* === 核心功能 === */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.feature-card {
  padding: 1.7rem 1.55rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s, box-shadow 0.22s, border-color 0.22s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(109, 94, 248, 0.28);
}
.feature-icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 14px;
  font-size: 1.35rem;
  margin-bottom: 1rem;
  background: var(--grad-soft);
}
.feature-card h3 { margin: 0 0 0.5rem; font-size: 1.08rem; }
.feature-card p { margin: 0; color: var(--text-muted); font-size: 0.93rem; }

/* === 数据看板（演示） === */
.board {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.25rem;
}
.board-panel {
  padding: 1.5rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.board-panel h3 { margin: 0 0 0.3rem; font-size: 1.02rem; }
.board-panel-hint { margin: 0 0 1.2rem; font-size: 0.8rem; color: var(--text-muted); }
.heat-list { display: flex; flex-direction: column; gap: 0.7rem; }
.heat-row { display: grid; grid-template-columns: 46px 1fr 52px; align-items: center; gap: 0.75rem; }
.heat-name { font-weight: 700; font-size: 0.9rem; }
.heat-track { height: 10px; border-radius: 999px; background: var(--bg-soft); overflow: hidden; }
.heat-fill { height: 100%; width: var(--w, 0%); border-radius: 999px; background: var(--grad); transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1); }
.has-js .heat-fill { width: 0; }
.heat-row:nth-child(2n) .heat-fill { background: linear-gradient(135deg, #00cfa8, #6d5ef8); }
.heat-row:nth-child(3n) .heat-fill { background: linear-gradient(135deg, #ffb020, #ff5c8a); }
.heat-val { text-align: right; font-size: 0.82rem; color: var(--text-muted); }
.board-trend { margin-top: 1.4rem; }
.board-trend svg { display: block; width: 100%; height: 120px; }
.board-metrics { display: flex; flex-direction: column; gap: 1rem; }
.metric-item {
  display: flex; align-items: center; gap: 0.9rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px solid var(--border);
}
.metric-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 12px;
  background: #fff;
  font-size: 1.1rem;
  box-shadow: var(--shadow-sm);
}
.metric-value { font-size: 1.15rem; font-weight: 700; line-height: 1.2; }
.metric-label { font-size: 0.8rem; color: var(--text-muted); }

/* === 使用流程 === */
.steps-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.step-item {
  position: relative;
  padding: 1.7rem 1.55rem 1.55rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.step-no {
  position: absolute;
  top: -18px; left: 1.55rem;
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 14px;
  color: #fff;
  font-weight: 700;
  background: var(--grad);
  box-shadow: 0 10px 22px rgba(109, 94, 248, 0.32);
}
.step-item h3 { margin: 1.2rem 0 0.45rem; font-size: 1.05rem; }
.step-item p { margin: 0; color: var(--text-muted); font-size: 0.93rem; }

/* === 常见问题 === */
.faq-list { max-width: 800px; margin: 0 auto; display: grid; gap: 0.85rem; }
.faq-item {
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.3rem;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 24px; height: 24px;
  display: grid; place-items: center;
  border-radius: 50%;
  font-size: 1rem; font-weight: 700;
  color: var(--primary);
  background: var(--grad-soft);
  transition: transform 0.2s, background 0.2s;
}
.faq-item[open] summary::after { content: "\2212"; transform: rotate(180deg); }
.faq-item p { margin: 0; padding: 0 1.3rem 1.15rem; color: var(--text-muted); font-size: 0.93rem; }

/* === 行动号召 === */
.cta-band {
  padding: 4rem 0;
  background:
    radial-gradient(600px 320px at 12% 0%, rgba(255, 255, 255, 0.16), transparent 60%),
    var(--grad);
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.cta-copy h2 { margin: 0 0 0.5rem; color: #fff; font-size: clamp(1.6rem, 3vw, 2.15rem); }
.cta-copy p { margin: 0; color: rgba(255, 255, 255, 0.9); }
.cta-actions { display: flex; gap: 0.85rem; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--primary-dark); box-shadow: 0 12px 26px rgba(0, 0, 0, 0.16); }
.btn-onGrad { background: rgba(255, 255, 255, 0.16); color: #fff; border-color: rgba(255, 255, 255, 0.45); }
.btn-onGrad:hover { background: rgba(255, 255, 255, 0.26); }

/* === 页脚 === */
.site-footer { padding: 3rem 0 2rem; background: #10121f; color: #a7acc8; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2rem; }
.footer-brand { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.9rem; font-weight: 700; font-size: 1.05rem; color: #fff; }
.footer-brand img { width: 30px; height: 30px; }
.footer-desc { margin: 0; font-size: 0.9rem; line-height: 1.75; max-width: 26rem; }
.footer-col h4 { margin: 0 0 0.85rem; color: #fff; font-size: 0.95rem; }
.footer-col a { display: block; padding: 0.28rem 0; font-size: 0.9rem; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  margin-top: 2.4rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.84rem;
}

/* === 滚动出现动画 ===
   仅在启用 JS（html.has-js）时隐藏初始状态，保证无 JS / 爬虫能看到完整内容 */
.has-js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.has-js .reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .has-js .reveal { opacity: 1; transform: none; transition: none; }
  .has-js .heat-fill, .has-js .dash-heat-fill { width: var(--w, 0%); transition: none; }
}

/* === 响应式 === */
@media (max-width: 960px) {
  .nav-links, .header-actions { display: none; }
  .nav-toggle { display: block; }
  .hero-grid, .board { grid-template-columns: 1fr; }
  .features-grid, .steps-list { grid-template-columns: repeat(2, 1fr); }
  .highlights-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .hero { padding-top: 3rem; }
  .section { padding: 3.25rem 0; }
  .features-grid, .steps-list, .highlights-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.6rem; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ============================================================
   多页内容站：导航高亮 / 面包屑 / 子页首屏 / 长文内容
   ============================================================ */

.nav-links a.active { color: var(--primary); font-weight: 600; }
.mobile-menu a.active { color: var(--primary); background: var(--bg-soft); }

/* 面包屑 */
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.45rem;
  padding: 1.2rem 0 0;
  font-size: 0.84rem; color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { opacity: 0.45; }
.breadcrumb .current { color: var(--text); font-weight: 600; }

/* 子页首屏 */
.page-hero {
  padding: 1.25rem 0 2.75rem;
  background:
    radial-gradient(600px 320px at 12% -20%, rgba(109, 94, 248, 0.14), transparent 62%),
    radial-gradient(520px 300px at 92% 0%, rgba(255, 92, 138, 0.12), transparent 60%),
    linear-gradient(180deg, #fbfbff, #ffffff);
}
.page-hero h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  letter-spacing: -0.02em;
}
.page-hero p { margin: 0; color: var(--text-muted); max-width: 46rem; font-size: 1.03rem; }

/* 长文内容 */
.prose { max-width: 840px; }
.prose > * + * { margin-top: 1rem; }
.prose h2 { margin: 2.5rem 0 0.6rem; font-size: 1.42rem; scroll-margin-top: 92px; }
.prose h3 { margin: 1.7rem 0 0.4rem; font-size: 1.08rem; }
.prose p { margin: 0; color: var(--text-muted); }
.prose ul, .prose ol { margin: 0; padding-left: 1.3rem; color: var(--text-muted); }
.prose li { margin: 0.32rem 0; }
.prose strong { color: var(--text); }

/* 文章内目录（锚点导航） */
.toc {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  margin-bottom: 2.25rem;
}
.toc h2 { margin: 0 0 0.65rem; font-size: 0.95rem; }
.toc ol { margin: 0; padding-left: 1.25rem; columns: 2; column-gap: 2rem; }
.toc a { color: var(--text-muted); transition: color 0.2s; }
.toc a:hover { color: var(--primary); }

/* 功能详情卡片 */
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.detail-card {
  padding: 1.7rem 1.6rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s, box-shadow 0.22s, border-color 0.22s;
}
.detail-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(109, 94, 248, 0.28);
}
.detail-card h3 { margin: 0 0 0.55rem; font-size: 1.06rem; scroll-margin-top: 92px; }
.detail-card p { margin: 0 0 0.6rem; color: var(--text-muted); font-size: 0.93rem; }
.detail-card p:last-child { margin-bottom: 0; }
.detail-card ul { margin: 0; padding-left: 1.2rem; color: var(--text-muted); font-size: 0.9rem; }
.detail-icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 14px;
  font-size: 1.3rem;
  background: var(--grad-soft);
  margin-bottom: 0.9rem;
}

/* 步骤（详情页纵向排布） */
.step-flow .step-item { padding: 1.7rem 1.7rem 1.6rem 4.9rem; }
.step-flow .step-no { top: 1.6rem; left: 1.6rem; }

/* 相关链接 */
.related-links { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.related-links a {
  padding: 0.62rem 1.1rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}
.related-links a:hover { color: var(--primary); border-color: rgba(109, 94, 248, 0.35); transform: translateY(-2px); }
.related-links.center { justify-content: center; margin-top: 2rem; }

/* 内容块间距 */
.block-offset { margin-top: 2.75rem; }
.block-offset-lg { margin-top: 3.5rem; }

@media (max-width: 960px) {
  .detail-grid { grid-template-columns: 1fr; }
  .toc ol { columns: 1; }
}