/* ===== 支持中心 FAQ 页面专属样式 ===== */
.page-faq {
  --faq-bg-card: rgba(13, 27, 42, 0.88);
  --faq-border: rgba(192, 192, 192, 0.3);
  --faq-glow: rgba(57, 255, 20, 0.14);
  --faq-text: #c9d4df;
  --faq-gap: 20px;
  position: relative;
  padding: 26px 0 56px;
  background-image:
    radial-gradient(ellipse at 85% -5%, rgba(57, 255, 20, 0.06), transparent 42%),
    linear-gradient(rgba(192, 192, 192, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 192, 192, 0.05) 1px, transparent 1px);
  background-size: auto, 40px 40px, 40px 40px;
  overflow-wrap: break-word;
}

.page-faq__breadcrumb {
  margin-bottom: 12px;
}
.page-faq__breadcrumb a {
  color: var(--c-blue);
  font-size: 14px;
  text-decoration: none;
}
.page-faq__breadcrumb a:hover {
  color: var(--c-neon);
}
.page-faq__breadcrumb span[aria-current="page"] {
  color: var(--c-muted);
  font-size: 14px;
}

.page-faq__header {
  position: relative;
  padding-left: 16px;
  border-left: 4px solid var(--c-neon);
  margin-bottom: 34px;
}
.page-faq__title {
  margin: 0 0 12px;
  font-family: var(--f-title);
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.05;
  color: var(--c-white);
  font-style: italic;
  transform: skewX(-5deg);
}
.page-faq__lead {
  margin: 0;
  max-width: 720px;
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-faq__search {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 11px 16px;
  max-width: 620px;
  background: var(--faq-bg-card);
  border: var(--bw) solid var(--faq-border);
  border-radius: 999px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-faq__search:focus-within {
  border-color: var(--c-neon);
  box-shadow: 0 0 0 3px var(--faq-glow);
}
.page-faq__search-icon {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--c-neon);
}
.page-faq__search-input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--c-white);
  font-family: var(--f-body);
  font-size: 15px;
}
.page-faq__search-input::placeholder {
  color: var(--c-muted);
}
.page-faq__search-hint {
  margin: 8px 0 0;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--c-muted);
}

.page-faq__section {
  margin-top: 44px;
  scroll-margin-top: 100px;
}
.page-faq__section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}
.page-faq__section-index {
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--c-neon);
}
.page-faq__section-title {
  margin: 0;
  font-family: var(--f-title);
  font-size: clamp(22px, 3.4vw, 30px);
  color: var(--c-white);
  font-style: italic;
  transform: skewX(-5deg);
}

.page-faq__hot {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}
.page-faq__hot-figure {
  margin: 0;
  overflow: hidden;
  border: var(--bw) solid var(--faq-border);
  border-radius: var(--radius);
  background: var(--faq-bg-card);
}
.page-faq__hot-figure img,
.page-faq__contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq__hot-list {
  background: var(--faq-bg-card);
  border: var(--bw) solid var(--faq-border);
  border-radius: var(--radius);
  padding: 6px 0;
}
.page-faq__hot-list ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faq-hot;
}
.page-faq__hot-list li {
  counter-increment: faq-hot;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(192, 192, 192, 0.14);
}
.page-faq__hot-list li:last-child {
  border-bottom: 0;
}
.page-faq__hot-list li::before {
  content: counter(faq-hot) ".";
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--c-neon);
}
.page-faq__hot-list a {
  color: var(--c-white);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq__hot-list a:hover {
  color: var(--c-neon);
}

.page-faq__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}
.page-faq__index {
  padding: 10px;
  background: var(--faq-bg-card);
  border: var(--bw) solid var(--faq-border);
  border-radius: var(--radius);
}
.page-faq__index-label {
  margin: 4px 12px 10px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}
.page-faq__index ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq__index li {
  flex: 1 1 auto;
  min-width: 120px;
}
.page-faq__index a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--c-white);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.page-faq__index a:hover {
  border-color: var(--c-neon);
  background: rgba(57, 255, 20, 0.04);
  color: var(--c-neon);
}
.page-faq__index svg {
  color: var(--c-orange);
}

.page-faq__group {
  margin-bottom: 30px;
  scroll-margin-top: 110px;
}
.page-faq__group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--f-title);
  font-size: 17px;
  font-style: italic;
  transform: skewX(-5deg);
  color: var(--c-neon);
}
.page-faq__group-title::before {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--c-orange);
  transform: rotate(45deg);
}

.page-faq__faq details {
  margin-bottom: 10px;
  overflow: hidden;
  background: var(--faq-bg-card);
  border: var(--bw) solid var(--faq-border);
  border-radius: 12px;
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
}
.page-faq__faq details[open] {
  border-color: rgba(57, 255, 20, 0.45);
  box-shadow: 0 0 18px var(--faq-glow);
}
.page-faq__faq summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--f-title);
  font-size: 14px;
  line-height: 1.45;
  color: var(--c-white);
  transition: color 0.2s ease;
}
.page-faq__faq summary::-webkit-details-marker {
  display: none;
}
.page-faq__faq summary:hover {
  color: var(--c-neon);
}
.page-faq__faq summary::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  background: var(--c-blue);
  transform: rotate(45deg);
  transition: background 0.2s ease, transform 0.2s ease;
}
.page-faq__faq summary:hover::before {
  background: var(--c-neon);
  transform: rotate(135deg);
}
.page-faq__faq details[open] summary::before {
  background: var(--c-orange);
  transform: rotate(135deg);
}
.page-faq__faq summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--c-neon);
  transition: transform 0.22s ease;
}
.page-faq__faq details[open] summary::after {
  transform: rotate(45deg);
}
.page-faq__faq details > p {
  margin: 0;
  padding: 0 16px 16px 38px;
  font-family: var(--f-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-text);
}
.page-faq__faq details a {
  color: var(--c-neon);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq__contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.page-faq__contact-card {
  padding: 20px;
  background: var(--faq-bg-card);
  border: var(--bw) solid var(--faq-border);
  border-radius: var(--radius);
}
.page-faq__contact-card > p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-text);
}
.page-faq__contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq__contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(192, 192, 192, 0.14);
  color: var(--c-white);
  font-size: 14px;
  line-height: 1.5;
  word-break: break-word;
}
.page-faq__contact-list li:last-child {
  border-bottom: 0;
}
.page-faq__contact-list svg {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--c-neon);
}
.page-faq__contact-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}
.page-faq__contact-note a {
  color: var(--c-neon);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-faq__contact-figure {
  margin: 0;
  overflow: hidden;
  border: var(--bw) solid var(--faq-border);
  border-radius: var(--radius);
  background: var(--faq-bg-card);
}

.page-faq__terms-note {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-text);
}
.page-faq__terms-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-faq__terms-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 20px;
  color: var(--c-white);
  text-decoration: none;
  background: var(--faq-bg-card);
  border: var(--bw) solid var(--faq-border);
  border-radius: var(--radius);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.page-faq__terms-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--c-neon);
}
.page-faq__terms-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: var(--bw) solid var(--c-orange);
  border-radius: 10px;
  color: var(--c-orange);
  background: rgba(255, 107, 0, 0.08);
}
.page-faq__terms-title {
  font-family: var(--f-title);
  font-size: 17px;
  font-style: italic;
  transform: skewX(-5deg);
}
.page-faq__terms-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-faq__breadcrumb a:focus-visible,
.page-faq__hot-list a:focus-visible,
.page-faq__index a:focus-visible,
.page-faq__faq summary:focus-visible,
.page-faq__terms-card:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
}

@media (min-width: 900px) {
  .page-faq {
    padding-top: 40px;
  }
  .page-faq__header {
    padding-left: 22px;
    border-left-width: 5px;
    margin-bottom: 44px;
  }
  .page-faq__lead {
    font-size: 17px;
  }
  .page-faq__search {
    padding: 13px 18px;
  }
  .page-faq__search-hint {
    margin-top: 10px;
  }
  .page-faq__hot {
    grid-template-columns: 5fr 7fr;
  }
  .page-faq__layout {
    grid-template-columns: 260px 1fr;
    gap: 28px;
  }
  .page-faq__index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
  .page-faq__index ul {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }
  .page-faq__index li {
    min-width: 0;
  }
  .page-faq__index a {
    border-radius: 10px;
    padding: 11px 14px;
  }
  .page-faq__contact-grid {
    grid-template-columns: 7fr 5fr;
  }
  .page-faq__contact-card {
    padding: 26px;
  }
  .page-faq__terms-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-faq__faq summary {
    padding: 16px 18px;
    font-size: 15px;
  }
  .page-faq__faq details > p {
    padding-left: 44px;
    font-size: 15px;
  }
}