.page-faq {
  --faq-amber-soft: rgba(232, 163, 61, .10);
  --faq-line-soft: rgba(232, 163, 61, .55);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-top: clamp(20px, 3.4vw, 40px);
  padding-bottom: clamp(24px, 3.6vw, 44px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -30px;
  right: calc(var(--edge) * -1);
  width: min(48vw, 420px);
  height: clamp(150px, 20vw, 226px);
  background: rgba(232, 163, 61, .10);
  border-left: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  clip-path: polygon(22% 0, 100% 0, 100% 78%, 0 100%);
}

.page-faq h1 {
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.12;
  letter-spacing: -.01em;
  font-weight: 800;
  margin: 10px 0 16px;
  max-width: 13em;
}

.page-faq .faq-lede {
  max-width: 640px;
  margin: 0;
  color: var(--slate-300);
  line-height: 1.8;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  list-style: none;
  margin: 26px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--slate-300);
}

.page-faq .faq-facts span {
  color: var(--amber-200);
  font-size: 15px;
  margin-right: 4px;
}

/* 路径条 */
.page-faq .faq-path {
  margin-top: clamp(10px, 2vw, 22px);
}

.page-faq .faq-path-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--slate-300);
  margin: 0;
}

.page-faq .path-list {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 14px 2px 18px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .path-item {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.page-faq .path-item + .path-item::before {
  content: "";
  display: block;
  flex: 0 0 auto;
  width: clamp(12px, 3vw, 44px);
  height: 1px;
  background: var(--ink-700);
}

.page-faq .path-item a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--ink-800);
  color: var(--paper-050);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  box-shadow: var(--shadow-1);
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.page-faq .path-item a:hover {
  border-color: var(--amber-500);
  background: var(--faq-amber-soft);
  color: var(--amber-200);
}

.page-faq .path-num {
  font-size: 12px;
  color: var(--amber-500);
}

/* 图片 */
.page-faq .faq-figure {
  margin: clamp(8px, 1.8vw, 16px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-faq .faq-figure--inline {
  margin: 0 0 20px;
}

/* 主体两栏 */
.page-faq .faq-body {
  margin-top: clamp(28px, 4.6vw, 60px);
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  align-items: start;
}

.page-faq .faq-side-box {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-side-summary {
  cursor: pointer;
  list-style: none;
  padding: 13px 14px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber-200);
}

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

.page-faq .faq-toc {
  list-style: none;
  margin: 0;
  padding: 4px 8px 12px;
}

.page-faq .faq-toc a {
  display: flex;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: 4px;
  color: var(--slate-300);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.45;
  transition: color .12s var(--ease), background .12s var(--ease), border-color .12s var(--ease);
}

.page-faq .faq-toc a .mono {
  font-size: 12px;
  color: var(--amber-500);
}

.page-faq .faq-toc a:hover {
  color: var(--paper-050);
  background: rgba(248, 244, 234, .04);
}

.page-faq .faq-toc a.is-current {
  color: var(--paper-050);
  border-left-color: var(--amber-500);
  background: var(--faq-amber-soft);
}

.page-faq .faq-side-note {
  margin: 12px 2px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-300);
}

/* 章节 */
.page-faq .qa-group + .qa-group {
  margin-top: clamp(34px, 5vw, 62px);
}

.page-faq .qa-group-head {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-bottom: 18px;
}

.page-faq .qa-group-head h2 {
  font-size: clamp(21px, 3.2vw, 30px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.25;
  margin: 8px 0 10px;
}

.page-faq .qa-group-lede {
  margin: 0;
  max-width: 620px;
  color: var(--slate-300);
  line-height: 1.78;
  font-size: 15px;
}

/* 手风琴 */
.page-faq .qa {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--ink-800);
  margin-bottom: 10px;
  transition: border-color .16s var(--ease), background .16s var(--ease);
}

.page-faq .qa:hover {
  border-color: #2b4d6e;
}

.page-faq .qa[open] {
  border-color: var(--faq-line-soft);
  background: #11293e;
}

.page-faq .qa[open]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--amber-500);
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 18px;
  align-items: start;
  gap: 10px;
  padding: 14px 14px 14px 12px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-num {
  font-size: 12px;
  line-height: 1.6;
  color: var(--amber-500);
  text-align: right;
  padding-top: 3px;
}

.page-faq .qa-q {
  font-size: 15px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--paper-050);
}

.page-faq .qa[open] .qa-q {
  color: var(--amber-200);
}

.page-faq .qa-icon {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .qa-icon::before,
.page-faq .qa-icon::after {
  content: "";
  position: absolute;
  background: var(--slate-300);
  transition: transform .16s var(--ease), opacity .16s var(--ease);
}

.page-faq .qa-icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-faq .qa-icon::after {
  top: 0;
  left: 6px;
  width: 1px;
  height: 14px;
}

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

.page-faq .qa-a {
  padding: 0 14px 16px 14px;
}

.page-faq .qa-a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-300);
}

.page-faq .qa-a a {
  color: var(--amber-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 163, 61, .45);
}

.page-faq .qa-a a:hover {
  color: var(--paper-050);
  border-bottom-color: var(--paper-050);
}

/* 客服卡片 */
.page-faq .support-card {
  position: relative;
  overflow: hidden;
  margin-top: 22px;
  padding: clamp(20px, 3.2vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  box-shadow: var(--shadow-1);
}

.page-faq .support-card::after {
  content: "";
  position: absolute;
  right: -66px;
  top: -66px;
  width: 168px;
  height: 168px;
  border: 1px solid rgba(232, 163, 61, .32);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-faq .support-title {
  position: relative;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 8px 0 10px;
}

.page-faq .support-text {
  position: relative;
  margin: 0;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate-300);
}

.page-faq .support-list {
  position: relative;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .support-list li {
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.page-faq .support-label {
  display: block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate-300);
  margin-bottom: 5px;
}

.page-faq .support-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper-050);
  overflow-wrap: anywhere;
}

.page-faq .support-value a {
  color: var(--amber-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 163, 61, .45);
}

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

@media (min-width: 600px) {
  .page-faq .qa summary {
    grid-template-columns: 52px minmax(0, 1fr) 20px;
    gap: 12px;
    padding: 16px 18px;
  }

  .page-faq .qa-q {
    font-size: 16px;
  }

  .page-faq .qa-a {
    padding: 0 18px 18px 86px;
  }

  .page-faq .support-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-body {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 56px);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 84px;
  }

  .page-faq .faq-side-summary {
    display: none;
  }

  .page-faq .faq-side-box {
    padding-top: 10px;
  }

  .page-faq .faq-side-box .faq-toc {
    display: block;
  }

  .page-faq .faq-figure--inline {
    max-width: 560px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa-icon::before,
  .page-faq .qa-icon::after,
  .page-faq .faq-toc a,
  .page-faq .path-item a {
    transition: none;
  }
}