.page-faq {
  --faq-rail: 236px;
  --faq-line: rgba(46, 74, 67, 0.95);
  --faq-text: rgba(244, 241, 232, 0.76);
}

.page-faq .breadcrumb {
  margin-bottom: 22px;
  font-size: 12px;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  margin-top: calc(-1 * var(--header-h));
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: clamp(30px, 5vw, 58px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    repeating-linear-gradient(115deg, rgba(200, 255, 61, 0.055) 0 2px, transparent 2px 28px),
    radial-gradient(120% 90% at 86% 0%, rgba(200, 255, 61, 0.14), transparent 62%),
    linear-gradient(180deg, var(--ink-deep), var(--ink));
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero__text h1 {
  margin: 14px 0 18px;
  font-size: clamp(30px, 7vw, 56px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--faq-text);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-size: 11.5px;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  color: rgba(244, 241, 232, 0.82);
  background: rgba(18, 58, 49, 0.6);
}

.page-faq .faq-hero__meta li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--edge);
  border-radius: 0 var(--cut) 0 var(--cut);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 24px 60px -34px rgba(0, 0, 0, 0.9);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 7 / 5;
  object-fit: cover;
}

.page-faq .faq-hero__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--edge);
  background: rgba(8, 33, 28, 0.7);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--cool);
}

/* 布局 */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  padding-bottom: clamp(50px, 8vw, 92px);
}

/* 左侧分类索引 */
.page-faq .faq-index {
  padding: 14px;
  border: 1px solid var(--edge);
  border-radius: var(--cut) 0 var(--cut) 0;
  background: rgba(18, 58, 49, 0.55);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  color: rgba(244, 241, 232, 0.82);
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-index__list a .mono {
  font-size: 11px;
  color: var(--lime);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  border-color: var(--lime-deep);
  background: rgba(200, 255, 61, 0.09);
}

/* 折叠面板组 */
.page-faq .faq-boards {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-faq .faq-board {
  position: relative;
  padding: clamp(18px, 3.2vw, 34px);
  border: 1px solid var(--edge);
  border-radius: 0 var(--cut) 0 var(--cut);
  background: linear-gradient(155deg, var(--panel) 0%, var(--ink-deep) 94%);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-board::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(var(--lime), rgba(200, 255, 61, 0));
}

.page-faq .faq-board__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 4px 14px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--faq-line);
}

.page-faq .faq-board__num {
  grid-row: span 2;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1;
  font-weight: 700;
  color: rgba(200, 255, 61, 0.92);
}

.page-faq .faq-board__head h2 {
  margin: 0;
  font-size: clamp(19px, 3.4vw, 27px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-board__sub {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 241, 232, 0.6);
}

/* 章节内插图 */
.page-faq .faq-figure {
  margin: 18px 0 4px;
  border: 1px solid var(--edge);
  border-radius: 0 14px 0 14px;
  overflow: hidden;
  background: var(--ink-deep);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 9px 13px;
  border-top: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cool);
}

/* 问答条目 */
.page-faq .faq-list {
  margin-top: 6px;
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
  transition: background 0.3s var(--ease);
}

.page-faq .qa:last-child {
  border-bottom: 0;
}

.page-faq .qa[open] {
  background: linear-gradient(90deg, rgba(200, 255, 61, 0.07), rgba(200, 255, 61, 0));
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 22px;
  align-items: start;
  gap: 10px;
  padding: 15px 4px 15px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__no {
  padding-top: 3px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-faq .qa__q {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--paper);
  transition: color 0.25s var(--ease);
}

.page-faq .qa__summary:hover .qa__q {
  color: var(--lime-deep);
}

.page-faq .qa__icon {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--edge);
  border-radius: 50%;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--lime);
  border-radius: 2px;
}

.page-faq .qa__icon::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .qa__icon::after {
  width: 1.5px;
  height: 10px;
  transition: opacity 0.25s var(--ease);
}

.page-faq .qa[open] .qa__icon {
  border-color: var(--lime);
  transform: rotate(180deg);
}

.page-faq .qa[open] .qa__icon::after {
  opacity: 0;
}

.page-faq .qa__body {
  padding: 0 4px 18px 0;
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--faq-text);
}

/* 纠错模板 */
.page-faq .qa-template {
  margin: 14px 0 0;
  padding: 14px 16px;
  border: 1px dashed rgba(200, 255, 61, 0.42);
  border-radius: 0 14px 0 14px;
  background: rgba(200, 255, 61, 0.05);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 2;
  color: rgba(244, 241, 232, 0.88);
  white-space: pre-wrap;
  overflow-x: auto;
}

/* 联系方式区 */
.page-faq .faq-board--help {
  background: linear-gradient(145deg, rgba(200, 255, 61, 0.15) 0%, var(--ink-deep) 62%);
  border-color: rgba(200, 255, 61, 0.42);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-faq .faq-help__item {
  padding-top: 12px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-help__key {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-help__value {
  margin: 0 0 6px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.62);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 18px 0 0;
  font-size: 13px;
}

.page-faq .faq-links a {
  color: rgba(244, 241, 232, 0.7);
  text-decoration: none;
  border-bottom: 1px solid var(--edge);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-links a:hover,
.page-faq .faq-links a:focus-visible {
  color: var(--lime);
  border-color: var(--lime-deep);
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-faq .qa__body {
    padding-left: 52px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: end;
    gap: clamp(26px, 4vw, 56px);
  }

  .page-faq .faq-hero__figure img {
    aspect-ratio: 4 / 3;
  }

  .page-faq .faq-board {
    padding: clamp(24px, 2.6vw, 36px);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    padding: 16px 14px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list a {
    width: 100%;
    border-radius: 2px 14px 2px 14px;
    padding: 9px 12px;
  }

  .page-faq .faq-boards {
    gap: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transform: none !important;
  }
}