.page-faq {
  background: var(--cream);
  color: var(--deep-green);
  font-family: var(--font-sans);
  position: relative;
  overflow-x: clip;
}

.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 44px;
  border-bottom: 2px solid rgba(18, 53, 36, 0.2);
  background-color: var(--cream);
  background-image:
    linear-gradient(rgba(45, 106, 79, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 106, 79, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
}

.page-faq .faq-hero::after {
  content: "呼和浩特 · 111.75°E / 40.84°N";
  position: absolute;
  right: 20px;
  bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: rgba(18, 53, 36, 0.32);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__crumb {
  margin-bottom: 14px;
}

.page-faq .faq-hero__code {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0 0 6px;
}

.page-faq .faq-hero__title {
  font-size: clamp(2.1rem, 5vw, 3.7rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 12px;
  max-width: 9em;
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: 80px;
  height: 6px;
  background: var(--gold);
  margin-top: 14px;
}

.page-faq .faq-hero__desc {
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--gray);
  margin: 0;
  max-width: 640px;
}

.page-faq .faq-hero__panel {
  background: #fff;
  border: 2px solid var(--deep-green);
  box-shadow: var(--shadow-hard);
  padding: 18px 18px 16px;
}

.page-faq .faq-hero__coords {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gray);
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(18, 53, 36, 0.15);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.page-faq .faq-hero__grid-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.page-faq .faq-hero__stat {
  border-left: 3px solid var(--blue);
  padding-left: 10px;
  min-width: 0;
}

.page-faq .faq-hero__stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--green);
  white-space: nowrap;
}

.page-faq .faq-hero__stat span {
  font-size: 0.72rem;
  color: var(--gray);
  letter-spacing: 0.03em;
}

.page-faq .faq-hero__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  border-top: 1px solid rgba(18, 53, 36, 0.15);
  padding-top: 12px;
  margin-top: 16px;
  font-size: 0.74rem;
  color: var(--deep-green);
}

.page-faq .faq-hero__dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 5px;
  vertical-align: middle;
}

.page-faq .faq-hero__dot--green {
  background: var(--green);
}

.page-faq .faq-hero__dot--blue {
  background: var(--blue);
}

.page-faq .faq-hero__dot--gold {
  background: var(--gold);
}

.page-faq .faq-toolbar {
  position: sticky;
  top: var(--header-h);
  z-index: 30;
  background: #fff;
  border-bottom: 2px solid rgba(18, 53, 36, 0.18);
}

.page-faq .faq-toolbar__inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.page-faq .faq-toolbar__search {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 2px solid var(--deep-green);
  background: #fff;
  padding: 10px 14px;
  transition: border-color 0.2s;
}

.page-faq .faq-toolbar__search:focus-within {
  border-color: var(--blue);
  box-shadow: 3px 3px 0 rgba(59, 130, 246, 0.25);
}

.page-faq .faq-toolbar__icon {
  font-size: 1.15rem;
  color: var(--green);
  font-family: var(--font-mono);
}

.page-faq .faq-toolbar__input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.92rem;
  color: var(--deep-green);
  font-family: var(--font-sans);
}

.page-faq .faq-toolbar__input::placeholder {
  color: var(--gray);
  opacity: 1;
}

.page-faq .faq-toolbar__input:focus-visible {
  outline: 3px solid rgba(59, 130, 246, 0.4);
  outline-offset: 0;
}

.page-faq .faq-toolbar__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-toolbar__filter {
  display: inline-block;
  border: 1.5px solid rgba(18, 53, 36, 0.3);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--deep-green);
  background: #fff;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  white-space: nowrap;
}

.page-faq .faq-toolbar__filter:hover {
  border-color: var(--gold);
  color: var(--deep-green);
}

.page-faq .faq-toolbar__filter:focus-visible {
  outline: 3px solid rgba(59, 130, 246, 0.4);
  outline-offset: 0;
}

.page-faq .faq-toolbar__filter.is-active {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.page-faq .faq-toolbar__filter span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  opacity: 0.85;
}

.page-faq .faq-content {
  scroll-margin-top: calc(var(--header-h) + 64px);
  padding-top: 8px;
}

.page-faq .faq-cat {
  padding: 44px 0 8px;
  border-bottom: 2px solid rgba(18, 53, 36, 0.15);
  border-left: 4px solid var(--green);
  padding-left: 16px;
  scroll-margin-top: calc(var(--header-h) + 64px);
}

.page-faq .faq-cat:last-of-type {
  border-bottom: none;
  padding-bottom: 8px;
}

.page-faq .faq-cat--sync {
  border-left-color: var(--blue);
}

.page-faq .faq-cat--version {
  border-left-color: var(--teal);
}

.page-faq .faq-cat--help {
  border-left-color: var(--gold);
}

.page-faq .faq-cat__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(18, 53, 36, 0.2);
}

.page-faq .faq-cat__index {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-cat__letter {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--green);
  background: var(--light-green);
  border: 2px solid var(--green);
  padding: 3px 8px;
  letter-spacing: 0.05em;
}

.page-faq .faq-cat__line {
  width: 22px;
  height: 2px;
  background: var(--gold);
}

.page-faq .faq-cat__title {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
}

.page-faq .faq-cat__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray);
  border: 1px solid rgba(18, 53, 36, 0.25);
  background: #fff;
  padding: 3px 8px;
  align-self: center;
}

.page-faq .faq-cat__sub {
  flex-basis: 100%;
  margin: 0;
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.5;
}

.page-faq .faq-cat__body {
  display: grid;
  gap: 10px;
}

.page-faq .faq-entry {
  border: 2px solid rgba(18, 53, 36, 0.18);
  background: #fff;
  transition: border-color 0.22s, box-shadow 0.22s;
}

.page-faq .faq-entry[open] {
  border-color: var(--blue);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-entry__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 16px 14px;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s;
}

.page-faq .faq-entry__summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-entry__summary:hover {
  background: var(--light-green);
}

.page-faq .faq-entry__summary:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: -3px;
}

.page-faq .faq-entry[open] .faq-entry__summary {
  border-bottom: 2px solid rgba(59, 130, 246, 0.3);
  background: rgba(59, 130, 246, 0.045);
}

.page-faq .faq-entry__no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.76rem;
  color: var(--blue);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.35);
  padding: 3px 5px;
  min-width: 44px;
  text-align: center;
}

.page-faq .faq-entry__text {
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.5;
}

.page-faq .faq-entry__plus {
  position: relative;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  display: block;
}

.page-faq .faq-entry__plus::before,
.page-faq .faq-entry__plus::after {
  content: "";
  position: absolute;
  background: var(--deep-green);
  transition: transform 0.2s;
}

.page-faq .faq-entry__plus::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  margin-top: -1px;
}

.page-faq .faq-entry__plus::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
}

.page-faq .faq-entry[open] .faq-entry__plus::after {
  transform: scaleY(0);
}

.page-faq .faq-entry__answer {
  padding: 14px 16px 18px;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--deep-green);
}

.page-faq .faq-entry__answer p {
  margin: 0;
}

.page-faq .faq-entry__answer a {
  color: var(--blue);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(59, 130, 246, 0.5);
}

.page-faq .faq-figure {
  margin: 20px 0 8px;
  border: 2px solid var(--deep-green);
  background: var(--light-green);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-figure__box {
  margin: 0;
  padding: 10px;
}

.page-faq .faq-figure__box img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(18, 53, 36, 0.2);
}

.page-faq .faq-figure__box figcaption {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--gray);
}

.page-faq .faq-figure__code {
  color: var(--blue);
  font-weight: 700;
}

.page-faq .faq-cta {
  margin-top: 40px;
  background: var(--deep-green);
  border-top: 6px solid var(--gold);
  padding: 44px 0;
}

.page-faq .faq-cta__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.page-faq .faq-cta__code {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin: 0 0 6px;
  text-transform: uppercase;
}

.page-faq .faq-cta__text h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: #fff;
}

.page-faq .faq-cta__text p:not(.faq-cta__code) {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
}

.page-faq .faq-cta__btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 52px 0 56px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px;
  }

  .page-faq .faq-hero__title {
    font-size: 3.4rem;
  }

  .page-faq .faq-hero__stat strong {
    font-size: 1.6rem;
  }

  .page-faq .faq-toolbar__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .page-faq .faq-toolbar__search {
    width: 340px;
    flex-shrink: 0;
  }

  .page-faq .faq-toolbar__filters {
    justify-content: flex-end;
  }

  .page-faq .faq-cat {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    grid-template-areas: "head body" "head figure";
    column-gap: 48px;
    padding: 56px 0 16px;
    padding-left: 0;
    border-left: none;
  }

  .page-faq .faq-cat__head {
    grid-area: head;
    align-self: start;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin: 0;
    padding: 0;
    border-bottom: none;
    position: sticky;
    top: calc(var(--header-h) + 72px);
  }

  .page-faq .faq-cat__line {
    width: 64px;
    height: 3px;
    margin: 4px 0 12px;
  }

  .page-faq .faq-cat__title {
    font-size: 1.85rem;
    line-height: 1.2;
    word-break: break-word;
  }

  .page-faq .faq-cat__count {
    margin-left: 0;
    align-self: flex-start;
  }

  .page-faq .faq-cat__sub {
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
  }

  .page-faq .faq-cat__body {
    grid-area: body;
    gap: 12px;
  }

  .page-faq .faq-figure {
    grid-area: figure;
    margin: 12px 50px 8px 0;
    justify-self: start;
    max-width: 620px;
    width: 100%;
  }

  .page-faq .faq-figure--inline {
    justify-self: end;
    max-width: 380px;
    margin: 12px 0 8px;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero__grid-stats {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-hero__stat {
    display: flex;
    align-items: baseline;
    gap: 10px;
  }
}