:root {
  --xcf-si-ink: #15191c;
  --xcf-si-ink-soft: #2a3034;
  --xcf-si-paper: #f1efe9;
  --xcf-si-paper-deep: #e5e1d8;
  --xcf-si-accent: #e95a22;
  --xcf-si-line: rgba(21, 25, 28, 0.18);
}

.xcf-home,
.xcf-seo-guide {
  font-family: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--xcf-si-ink);
}

.xcf-home :is(h1, h2, h3),
.xcf-seo-guide :is(h2, h3) {
  overflow-wrap: anywhere;
  text-wrap: balance;
}

.xcf-home p,
.xcf-seo-guide p {
  text-wrap: pretty;
}

.xcf-home :is(a, button),
.xcf-seo-guide a {
  transition: color 220ms ease, background-color 220ms ease, border-color 220ms ease, transform 220ms ease;
}

.xcf-home :is(a, button):active,
.xcf-seo-guide a:active {
  transform: translateY(1px);
}

.xcf-home :is(a, button):focus-visible,
.xcf-seo-guide a:focus-visible,
.ast-header-social-1-wrap a:focus-visible,
.ast-header-social-2-wrap a:focus-visible {
  outline: 3px solid #ff8a50;
  outline-offset: 4px;
}

.xcf-actions {
  min-width: 0;
  flex-wrap: wrap;
}

.xcf-btn {
  min-width: 0;
  max-width: 100%;
}

.xcf-seo-guide {
  position: relative;
  overflow: clip;
  padding: clamp(5rem, 9vw, 8.5rem) 0 clamp(5.75rem, 10vw, 9.5rem);
  background:
    radial-gradient(circle at 88% 12%, rgba(233, 90, 34, 0.12), transparent 28rem),
    var(--xcf-si-paper);
}

.xcf-seo-guide::before {
  position: absolute;
  inset: 0;
  opacity: 0.32;
  pointer-events: none;
  content: "";
  background-image: repeating-linear-gradient(90deg, transparent 0, transparent calc(25% - 1px), rgba(21, 25, 28, 0.05) 25%);
}

.xcf-seo-guide__shell {
  position: relative;
  width: min(calc(100% - 3rem), 74rem);
  margin-inline: auto;
}

.xcf-seo-guide__header {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(16rem, 0.55fr);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: end;
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--xcf-si-line);
}

.xcf-seo-guide__eyebrow {
  grid-column: 1 / -1;
  margin: 0 0 -0.75rem;
  color: #a33b16;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.xcf-seo-guide__header h2 {
  max-width: 16ch;
  margin: 0;
  color: var(--xcf-si-ink);
  font-size: clamp(2.4rem, 5.2vw, 5.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.xcf-seo-guide__header > p:last-child {
  max-width: 34rem;
  margin: 0;
  color: #545b5f;
  font-size: 1rem;
  line-height: 1.9;
}

.xcf-seo-guide__links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  border-bottom: 1px solid var(--xcf-si-line);
}

.xcf-seo-guide__links a {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-right: 1px solid var(--xcf-si-line);
  color: var(--xcf-si-ink);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.xcf-seo-guide__links a:nth-child(3n) {
  border-right: 0;
}

.xcf-seo-guide__links a:hover {
  color: #fff;
  background: var(--xcf-si-accent);
}

.xcf-seo-guide__links span {
  color: #a7acae;
  font-size: 1.05rem;
}

.xcf-seo-guide__links a:hover span {
  color: inherit;
}

.xcf-seo-guide__faq {
  margin-top: clamp(3rem, 6vw, 5.5rem);
}

.xcf-seo-guide__item {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: clamp(1.25rem, 4vw, 4.5rem);
  padding: clamp(1.75rem, 3.5vw, 3rem) 0;
  border-top: 1px solid var(--xcf-si-line);
}

.xcf-seo-guide__item:last-child {
  border-bottom: 1px solid var(--xcf-si-line);
}

.xcf-seo-guide__number {
  padding-top: 0.2rem;
  color: var(--xcf-si-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.xcf-seo-guide__item > div {
  display: grid;
  grid-template-columns: minmax(14rem, 0.72fr) minmax(16rem, 1.28fr);
  gap: clamp(1.5rem, 5vw, 6rem);
  align-items: start;
}

.xcf-seo-guide__item h3 {
  margin: 0;
  color: var(--xcf-si-ink);
  font-size: clamp(1.25rem, 2.2vw, 1.8rem);
  font-weight: 650;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.xcf-seo-guide__item p {
  max-width: 42rem;
  margin: 0;
  color: #596064;
  line-height: 1.9;
}

.xcf-seo-guide__contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-top: clamp(3rem, 6vw, 5.5rem);
  padding: clamp(1.75rem, 4vw, 3rem);
  color: #fff;
  background: var(--xcf-si-ink);
  box-shadow: 0 1.5rem 4rem rgba(31, 27, 23, 0.14);
}

.xcf-seo-guide__contact span {
  display: block;
  margin-bottom: 0.45rem;
  color: #ff8a50;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.xcf-seo-guide__contact strong {
  display: block;
  max-width: 32rem;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  line-height: 1.45;
}

.xcf-seo-guide__phones {
  display: flex;
  gap: 0.75rem;
}

.xcf-seo-guide__phones a {
  display: flex;
  min-height: 3.4rem;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: #fff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
  text-decoration: none;
  white-space: nowrap;
}

.xcf-seo-guide__phones a:hover {
  border-color: var(--xcf-si-accent);
  background: var(--xcf-si-accent);
}

@media (max-width: 920px) {
  .xcf-seo-guide__header {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .xcf-seo-guide__header h2 {
    max-width: 18ch;
  }

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

  .xcf-seo-guide__links a:nth-child(3n) {
    border-right: 1px solid var(--xcf-si-line);
  }

  .xcf-seo-guide__links a:nth-child(2n) {
    border-right: 0;
  }

  .xcf-seo-guide__item > div,
  .xcf-seo-guide__contact {
    grid-template-columns: 1fr;
  }

  .xcf-seo-guide__phones {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .xcf-home {
    overflow-x: clip;
  }

  .xcf-home .xcf-shell,
  .xcf-seo-guide__shell {
    width: min(calc(100% - 1.875rem), 74rem);
  }

  .xcf-home .xcf-hero {
    min-height: 39rem;
  }

  .xcf-home .xcf-hero__inner {
    min-width: 0;
    padding-block: 4.5rem 3.75rem;
  }

  .xcf-home .xcf-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
  }

  .xcf-home .xcf-btn {
    width: 100%;
    white-space: normal;
  }

  .xcf-seo-guide {
    padding-block: 4.5rem 5.5rem;
  }

  .xcf-seo-guide::before {
    background-image: none;
  }

  .xcf-seo-guide__header h2 {
    font-size: clamp(2.2rem, 11vw, 3.3rem);
  }

  .xcf-seo-guide__links {
    grid-template-columns: 1fr;
  }

  .xcf-seo-guide__links a,
  .xcf-seo-guide__links a:nth-child(2n),
  .xcf-seo-guide__links a:nth-child(3n) {
    min-height: 3.9rem;
    border-right: 0;
    border-bottom: 1px solid var(--xcf-si-line);
  }

  .xcf-seo-guide__links a:last-child {
    border-bottom: 0;
  }

  .xcf-seo-guide__item {
    grid-template-columns: 2.3rem minmax(0, 1fr);
    gap: 0.8rem;
  }

  .xcf-seo-guide__item > div {
    gap: 0.85rem;
  }

  .xcf-seo-guide__contact {
    gap: 1.5rem;
    padding: 1.5rem;
  }

  .xcf-seo-guide__phones {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .xcf-seo-guide__phones a {
    width: 100%;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .xcf-home *,
  .xcf-seo-guide * {
    scroll-behavior: auto !important;
    transition-duration: 0s !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}