:root {
  color-scheme: dark;
  --bg: #050814;
  --panel: rgba(13, 20, 39, 0.78);
  --panel-strong: rgba(18, 28, 55, 0.92);
  --line: rgba(132, 154, 255, 0.18);
  --text: #eef3ff;
  --muted: #9aa8c7;
  --cyan: #41e6ff;
  --violet: #8c5cff;
  --green: #7cffb2;
  --orange: #ffbf69;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(65, 230, 255, 0.16), transparent 32rem),
    radial-gradient(circle at 85% 15%, rgba(140, 92, 255, 0.22), transparent 30rem),
    linear-gradient(180deg, #050814 0%, #07101f 48%, #040713 100%);
  color: var(--text);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.ambient {
  position: fixed;
  z-index: -1;
  width: 280px;
  height: 280px;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.55;
}

.ambient-one {
  top: 12%;
  left: 6%;
  background: rgba(65, 230, 255, 0.22);
}

.ambient-two {
  right: 8%;
  bottom: 8%;
  background: rgba(140, 92, 255, 0.24);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 8, 20, 0.7);
  backdrop-filter: blur(20px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(65, 230, 255, 0.38);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(65, 230, 255, 0.26), rgba(140, 92, 255, 0.28));
  color: var(--cyan);
  box-shadow: 0 0 26px rgba(65, 230, 255, 0.2);
}

.nav-links {
  display: flex;
  gap: 26px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta,
.button,
.subscribe-form button {
  border: 1px solid rgba(65, 230, 255, 0.3);
  border-radius: 999px;
  background: rgba(65, 230, 255, 0.1);
  color: var(--text);
  cursor: pointer;
}

.nav-cta {
  padding: 10px 16px;
  color: var(--cyan);
  font-size: 14px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: 42px;
  padding: 78px 0 42px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(42px, 8vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.hero-copy {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  padding: 13px 20px;
  font-weight: 700;
}

.button.primary {
  border-color: rgba(65, 230, 255, 0.48);
  background: linear-gradient(135deg, #35dfff, #8c5cff);
  color: #04101f;
  box-shadow: 0 16px 46px rgba(65, 230, 255, 0.22);
}

.button.ghost {
  color: var(--cyan);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 680px;
  margin-top: 38px;
}

.stats div,
.hero-panel,
.newsletter-card,
.ads-grid article,
.tool-card,
.featured-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 28, 55, 0.72), rgba(9, 14, 28, 0.76));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.stats div {
  padding: 18px;
  border-radius: 22px;
}

.stats strong {
  display: block;
  font-size: 22px;
}

.stats span {
  color: var(--muted);
  font-size: 13px;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  padding: 24px;
  border-radius: 32px;
}

.panel-glow {
  position: absolute;
  inset: -40% -30% auto auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(65, 230, 255, 0.22);
  filter: blur(45px);
}

.ad-slot {
  position: relative;
  display: grid;
  min-height: 220px;
  place-items: stretch;
  overflow: hidden;
  border: 1px dashed rgba(65, 230, 255, 0.34);
  border-radius: 26px;
  background:
    linear-gradient(135deg, rgba(65, 230, 255, 0.08), rgba(140, 92, 255, 0.12)),
    rgba(255, 255, 255, 0.03);
  color: var(--muted);
  text-align: center;
}

.ad-slot > .adsbygoogle {
  display: block !important;
  width: 100%;
  min-width: 250px;
}

.ad-placeholder {
  place-self: center;
  padding: 24px;
}

.ad-placeholder strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
}

.signal-card {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px solid rgba(124, 255, 178, 0.24);
  border-radius: 22px;
  background: rgba(4, 10, 20, 0.7);
}

.signal-card p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.signal-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 20px var(--green);
}

.category-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 0;
}

.category-pill {
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  cursor: pointer;
}

.category-pill:hover,
.category-pill.active {
  border-color: rgba(65, 230, 255, 0.46);
  background: rgba(65, 230, 255, 0.12);
  color: var(--cyan);
}

.tools-section,
.ads-section {
  padding: 46px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.section-heading.compact {
  align-items: start;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.04em;
}

.search-box {
  display: grid;
  gap: 8px;
  min-width: min(360px, 100%);
  color: var(--muted);
  font-size: 13px;
}

.search-box input,
.subscribe-form input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  outline: none;
  background: rgba(5, 8, 20, 0.72);
  color: var(--text);
}

.search-box input {
  padding: 14px 16px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
}

.featured-grid,
.tool-grid,
.ads-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.featured-card,
.tool-card,
.ads-grid article,
.newsletter-card {
  border-radius: 24px;
}

.featured-card,
.tool-card {
  padding: 20px;
  transition:
    transform 180ms ease,
    border-color 180ms ease;
}

.featured-card:hover,
.tool-card:hover {
  transform: translateY(-4px);
  border-color: rgba(65, 230, 255, 0.36);
}

.featured-card {
  min-height: 230px;
  background:
    radial-gradient(circle at top right, rgba(65, 230, 255, 0.14), transparent 12rem),
    linear-gradient(180deg, rgba(22, 36, 71, 0.86), rgba(10, 16, 32, 0.86));
}

.tool-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.tool-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 16px;
  background: rgba(65, 230, 255, 0.12);
  color: var(--cyan);
  font-weight: 800;
}

.badge {
  border: 1px solid rgba(255, 191, 105, 0.28);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--orange);
  font-size: 12px;
}

.tool-card h3,
.featured-card h3,
.ads-grid h3,
.newsletter-card h3 {
  margin: 18px 0 8px;
}

.tool-card p,
.featured-card p,
.ads-grid p,
.newsletter-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag-list span {
  border-radius: 999px;
  padding: 6px 9px;
  background: rgba(255, 255, 255, 0.06);
  color: #cbd5ff;
  font-size: 12px;
}

.tool-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--cyan);
  font-weight: 700;
}

.inline-ad {
  min-height: 130px;
  margin: 18px 0;
}

.sidebar {
  display: grid;
  align-content: start;
  gap: 18px;
}

.newsletter-card {
  padding: 22px;
}

.subscribe-form {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.subscribe-form input {
  padding: 12px 14px;
}

.subscribe-form button {
  padding: 12px 14px;
  color: var(--cyan);
}

.ads-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ads-grid article {
  padding: 24px;
}

.ads-grid span {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
}

.empty-state {
  padding: 28px;
  color: var(--muted);
  text-align: center;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 40px 0 56px;
  color: var(--muted);
}

.site-footer p {
  margin: 12px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a:hover {
  color: var(--cyan);
}

@media (max-width: 920px) {
  .hero,
  .content-grid,
  .ads-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .hero {
    padding-top: 48px;
  }

  .stats,
  .featured-grid,
  .tool-grid,
  .sidebar {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }
}