:root {
  color-scheme: dark;
  --bg: #101114;
  --panel: #17181d;
  --panel-strong: #202127;
  --text: #f3f4f6;
  --muted: #b6bac5;
  --line: #343640;
  --accent: #d33b3b;
  --accent-strong: #f15b5b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: minmax(210px, 1fr) auto;
  align-items: center;
  gap: 24px;
  min-height: 68px;
  padding: 14px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
  background: rgb(16 17 20 / 0.94);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
}

.nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
}

.nav a {
  padding: 8px 10px;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 6px;
  white-space: nowrap;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
  border-color: var(--line);
  outline: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(52px, 8vw, 86px) clamp(18px, 4vw, 52px) 48px;
}

.hero-copy {
  max-width: 640px;
}

.kicker {
  margin: 0 0 14px;
  color: var(--accent-strong);
  font-size: 0.88rem;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(2.75rem, 6vw, 5.5rem);
  line-height: 0.98;
  max-width: 10ch;
}

.lead {
  margin: 22px 0 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.8vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:active {
  transform: translateY(1px);
}

.button-primary {
  background: var(--accent);
  color: #fff7f7;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--accent-strong);
  outline: none;
}

.button-secondary {
  border: 1px solid var(--line);
  color: var(--text);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--accent-strong);
  outline: none;
}

.hero-media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.notice,
.trend-section,
.query-map,
.article,
.site-footer {
  max-width: 1240px;
  margin: 0 auto;
  padding-inline: clamp(18px, 4vw, 52px);
}

.notice {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding-top: 22px;
  padding-bottom: 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.notice strong {
  color: var(--text);
}

.trend-section,
.query-map {
  padding-top: 72px;
  padding-bottom: 28px;
}

.section-heading {
  max-width: 720px;
}

.section-heading h2,
.query-map h2,
.article h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.55rem);
  line-height: 1.1;
}

.section-heading p,
.query-map p,
.article p {
  color: var(--muted);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.guide-card {
  min-height: 230px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.guide-card-1,
.guide-card-2 {
  grid-column: span 3;
}

.guide-card-3,
.guide-card-4,
.guide-card-5,
.guide-card-6 {
  grid-column: span 3;
}

.guide-card a {
  display: grid;
  align-content: start;
  gap: 14px;
  min-height: 100%;
  padding: 22px;
  text-decoration: none;
}

.guide-card span {
  width: max-content;
  padding: 4px 8px;
  border-radius: 5px;
  background: rgb(211 59 59 / 0.16);
  color: #ffb3b3;
  font-size: 0.82rem;
  font-weight: 800;
}

.guide-card h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  line-height: 1.15;
}

.guide-card p {
  margin: 0;
  color: var(--muted);
}

.guide-card:hover,
.guide-card:focus-within {
  border-color: var(--accent-strong);
}

.query-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.query-columns div,
.article-panel,
.article-block,
.query-list,
.source-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 22px;
}

.query-columns h3,
.article-block h2 {
  margin: 0 0 10px;
}

.article {
  padding-top: 64px;
  padding-bottom: 40px;
}

.article-head {
  max-width: 790px;
}

.article h1 {
  max-width: 13ch;
}

.article-panel,
.article-body,
.query-list,
.source-box {
  margin-top: 24px;
}

.article-body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.query-list ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.query-list li {
  padding: 10px 12px;
  border-radius: 6px;
  background: var(--panel-strong);
  color: var(--muted);
}

.source-links,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.source-links a,
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 4px;
}

.site-footer {
  display: grid;
  gap: 12px;
  padding-top: 32px;
  padding-bottom: 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 860px) {
  .site-header {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .nav {
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 42px;
  }

  h1 {
    max-width: 12ch;
  }

  .guide-grid,
  .query-columns,
  .article-body,
  .query-list ul {
    grid-template-columns: 1fr;
  }

  .guide-card,
  .guide-card-1,
  .guide-card-2,
  .guide-card-3,
  .guide-card-4,
  .guide-card-5,
  .guide-card-6 {
    grid-column: auto;
    min-height: auto;
  }

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