.page-faq {
  --faq-skew: -15deg;
  --faq-rail-top: calc(var(--header-h) + 96px);
  background-color: var(--ink);
  background-image: radial-gradient(1100px 520px at 84% -12%, rgba(23, 71, 54, 0.6), transparent 68%);
  color: var(--paper);
  padding-bottom: clamp(36px, 6vw, 78px);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: clamp(14px, 2.4vw, 22px);
}
.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.page-faq .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--line);
}
.page-faq .breadcrumb__sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: min(56vw, 640px);
  height: 165%;
  background: linear-gradient(155deg, rgba(23, 71, 54, 0.92), rgba(8, 33, 26, 0) 74%);
  transform: skewX(var(--faq-skew));
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "FAQ";
  position: absolute;
  right: clamp(10px, 5vw, 74px);
  bottom: -0.1em;
  margin: 0;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: clamp(72px, 16vw, 200px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: rgba(201, 162, 39, 0.07);
  pointer-events: none;
  user-select: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(22px, 4.5vw, 52px);
  padding-bottom: clamp(26px, 4.5vw, 54px);
}
.page-faq .faq-hero__title {
  margin: 12px 0 0;
  max-width: min(100%, 880px);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(28px, 6vw, 62px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
  text-wrap: balance;
}
.page-faq .faq-hero__lede {
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .faq-hero__note {
  display: inline-block;
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  padding: 6px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--gold-bright);
  background: rgba(201, 162, 39, 0.09);
  border-left: 2px solid var(--gold);
}

/* ---------- 速答横条 ---------- */
.page-faq .quick-strip {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  background: rgba(8, 33, 26, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.page-faq .quick-strip__inner {
  display: grid;
  gap: 10px 20px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.page-faq .quick-strip__lead {
  margin: 0;
  font-family: var(--font-cond);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  white-space: nowrap;
}
.page-faq .quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 18px;
  margin: 0;
}
.page-faq .quick-cell {
  min-width: 0;
  padding-left: 10px;
  border-left: 1px solid var(--line-soft);
}
.page-faq .quick-cell__k {
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.4;
  color: var(--muted);
}
.page-faq .quick-cell__v {
  margin: 3px 0 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--paper);
}
.page-faq .quick-cell__v .mono {
  color: var(--gold-bright);
}

/* ---------- 两栏布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: clamp(22px, 4vw, 44px);
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(36px, 6vw, 76px);
}

/* 左侧问题分类栏 */
.page-faq .faq-rail {
  min-width: 0;
}
.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-cond);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}
.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-rail__item {
  flex: 0 0 auto;
}
.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  font-size: 13.5px;
  line-height: 1.3;
  white-space: nowrap;
  color: var(--muted);
  text-decoration: none;
  background: rgba(15, 47, 37, 0.55);
  border: 1px solid var(--line-soft);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--gold-bright);
  background: rgba(23, 71, 54, 0.78);
  border-color: var(--line);
  transform: translateY(-2px);
}
.page-faq .faq-rail__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}
.page-faq .faq-rail__foot {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 答案面板 ---------- */
.page-faq .faq-panel {
  display: grid;
  gap: clamp(34px, 5vw, 58px);
  min-width: 0;
}
.page-faq .faq-group {
  position: relative;
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 110px);
}

/* 分组标题 */
.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num sum";
  gap: 2px 14px;
  align-items: start;
  padding-bottom: 14px;
  margin-bottom: clamp(16px, 3vw, 24px);
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-group__num {
  grid-area: num;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: start;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 13px;
  color: var(--gold-bright);
}
.page-faq .faq-group__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.3;
  color: var(--paper);
}
.page-faq .faq-group__sum {
  grid-area: sum;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 图示 */
.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 3vw, 26px);
  background: rgba(15, 47, 37, 0.55);
  border: 1px solid var(--line-soft);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  padding: 9px 14px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}

/* 数据版本分组：正文与图示并置 */
.page-faq .faq-group__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: clamp(18px, 3vw, 28px);
  min-width: 0;
}
.page-faq .faq-group__body .faq-figure {
  margin-bottom: 0;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  min-width: 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .qa {
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .qa__q {
  position: relative;
  display: block;
  padding: 15px 46px 15px 24px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
  transition: color 0.2s ease, background 0.2s ease;
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__q::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 1.45em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(159, 184, 172, 0.35);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.page-faq .qa[open] > .qa__q::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.15);
}
.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--gold);
  transition: color 0.2s ease, transform 0.22s ease;
}
.page-faq .qa[open] > .qa__q::after {
  content: "\2013";
  color: var(--gold-bright);
}
.page-faq .qa__q:hover {
  color: var(--gold-bright);
}
.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}
.page-faq .qa__a {
  padding: 0 46px 18px 24px;
  font-size: 14.8px;
  line-height: 1.85;
  color: var(--muted);
  overflow-wrap: break-word;
}
.page-faq .qa__a p {
  margin: 0;
}
.page-faq .qa__a p + p {
  margin-top: 10px;
}
.page-faq .qa__a b,
.page-faq .qa__a strong {
  color: var(--gold-bright);
  font-weight: 600;
}
.page-faq .qa__a a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
.page-faq .qa__a a:hover {
  color: var(--paper);
}
.page-faq .qa__copy {
  margin-top: 12px;
}

.page-faq .faq-more {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .faq-more a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s ease;
}
.page-faq .faq-more a:hover {
  border-bottom-color: var(--gold-bright);
}

/* ---------- 联系卡片 ---------- */
.page-faq .contact-card {
  display: grid;
  gap: 1px;
  margin-top: clamp(18px, 3vw, 26px);
  background: var(--line-soft);
  border: 1px solid var(--line);
}
.page-faq .contact-card__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(15, 47, 37, 0.72);
}
.page-faq .contact-card__k {
  font-family: var(--font-cond);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}
.page-faq .contact-card__v {
  min-width: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .contact-card__note {
  margin: 0;
  padding: 12px 16px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
  background: rgba(8, 33, 26, 0.8);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 720px) {
  .page-faq .quick-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .contact-card__row {
    grid-template-columns: 96px minmax(0, 1fr) auto;
    gap: 6px 18px;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-group__body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}

@media (min-width: 860px) {
  .page-faq .quick-strip__inner {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 248px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }
  .page-faq .faq-rail {
    position: sticky;
    top: var(--faq-rail-top);
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-rail__link {
    white-space: normal;
  }
  .page-faq .faq-group {
    padding-left: 18px;
  }
  .page-faq .faq-group::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 4px;
    width: 2px;
    background: var(--line-soft);
    transition: background 0.3s ease;
  }
  .page-faq .faq-group.is-current::before {
    background: var(--gold);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}