:root {
  --tv-bg: #f4f7fb;
  --tv-surface: #ffffff;
  --tv-border: #dfe6ef;
  --tv-text: #142033;
  --tv-muted: #64748b;
  --tv-primary: #155bd5;
  --tv-accent: #0b8f7b;
}

body {
  background: var(--tv-bg);
  color: var(--tv-text);
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--tv-primary), var(--tv-accent));
}

.site-logo {
  width: 72px;
  height: 51px;
  object-fit: contain;
  flex: 0 0 auto;
  border-radius: 6px;
  background: #fff;
}

.logo-credit {
  font-size: .78rem;
}

.hero {
  background:
    radial-gradient(circle at 16% 20%, rgba(21, 91, 213, .13), transparent 34%),
    linear-gradient(180deg, #fff, #eef5ff);
  border: 1px solid var(--tv-border);
}

.tool-card,
.category-card,
.tool-panel,
.stats-card {
  transition: transform .16s ease, box-shadow .16s ease;
}

.tool-card:hover,
.category-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(20, 32, 51, .11);
}

.ad-box {
  min-height: 90px;
  display: grid;
  place-items: center;
  gap: .15rem;
  align-content: center;
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  color: var(--tv-muted);
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.65);
  margin-block: 1.5rem;
  text-align: center;
}

.ad-label {
  display: block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.ad-size {
  display: block;
  font-size: .8rem;
  color: #94a3b8;
}

.ad-top {
  min-height: 90px;
  max-width: 970px;
  margin-left: auto;
  margin-right: auto;
}

.ad-bottom {
  min-height: 90px;
  max-width: 970px;
}

.ad-sidebar {
  min-height: 250px;
  max-width: 336px;
  margin-left: auto;
  margin-right: auto;
}

.ad-rail {
  position: absolute;
  top: 132px;
  width: 160px;
  min-height: 600px;
  z-index: 4;
  margin: 0;
}

.ad-left {
  left: 24px;
}

.ad-right {
  right: 24px;
}

.tool-ui {
  display: grid;
  gap: 1rem;
}

.tool-result {
  min-height: 120px;
  max-height: 460px;
  overflow: auto;
  white-space: pre-wrap;
  background: #f8fafc;
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  padding: 1rem;
}

.tool-article {
  background: #fff;
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  padding: 1.25rem;
}

.policy-page {
  border: 1px solid var(--tv-border);
  border-radius: 8px;
}

.policy-content {
  max-width: 920px;
  line-height: 1.75;
}

.policy-content h2 {
  margin-top: 1.75rem;
  font-size: 1.35rem;
}

.contact-box {
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  padding: 1rem;
  background: #f8fafc;
  margin: 1.25rem 0;
}

.policy-form {
  max-width: 860px;
  margin-top: 1rem;
}

.sitemap-list a {
  display: block;
  padding: .75rem .85rem;
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  background: #f8fafc;
  text-decoration: none;
}

.footer-links {
  max-width: 760px;
}

.preview-img {
  max-width: 100%;
  border: 1px solid var(--tv-border);
  border-radius: 8px;
}

@media (max-width: 1500px) {
  .ad-rail {
    display: none;
  }
}

@media (max-width: 767px) {
  .ad-box {
    min-height: 100px;
    margin-block: 1.25rem;
  }

  .ad-top,
  .ad-bottom,
  .ad-sidebar {
    max-width: 100%;
  }
}