.page-faq {
  --faq-cut: 18px;
  --faq-line: rgba(200, 162, 90, 0.45);
  --faq-grid-line: rgba(110, 127, 140, 0.06);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--ink-green);
  color: var(--cream);
  padding-block: clamp(36px, 5vw, 72px) clamp(44px, 6vw, 88px);
  background-image:
    linear-gradient(118deg, rgba(200, 162, 90, 0.12) 0%, rgba(200, 162, 90, 0) 46%),
    repeating-linear-gradient(45deg, rgba(200, 162, 90, 0.07) 0 1px, transparent 1px 24px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-faq .faq-hero__copy {
  min-width: 0;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 20px;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--gold);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb li {
  color: rgba(245, 240, 230, 0.72);
}

.page-faq .faq-hero .eyebrow {
  color: var(--gold-bright);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  color: var(--cream);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin-top: 18px;
  max-width: 42em;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.82);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--faq-line);
  color: var(--cream);
  font-size: 0.88rem;
  text-decoration: none;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: background 240ms var(--ease-out), color 240ms var(--ease-out), border-color 240ms var(--ease-out);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-green-deep);
}

.page-faq .faq-jump__num {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--gold-bright);
}

.page-faq .faq-jump__link:hover .faq-jump__num,
.page-faq .faq-jump__link:focus-visible .faq-jump__num {
  color: var(--ink-green-deep);
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-hero__media img,
.page-faq .faq-help__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  background-color: var(--cream);
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 26px 26px;
}

.page-faq .faq-rail {
  align-self: start;
  position: sticky;
  top: 92px;
  padding: 22px 20px;
  background: var(--card);
  border-left: 2px solid var(--gold);
}

.page-faq .rail__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--slate-text);
}

.page-faq .rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .rail__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--slate-line);
  color: var(--ink-black);
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 200ms var(--ease-out), padding-left 200ms var(--ease-out);
}

.page-faq .rail__link:hover,
.page-faq .rail__link:focus-visible {
  color: var(--cinnabar);
  padding-left: 4px;
}

.page-faq .rail__link.is-active {
  color: var(--ink-green);
  font-weight: 700;
  box-shadow: inset 4px 0 0 var(--gold);
  padding-left: 10px;
}

.page-faq .faq-rail__count {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--slate);
}

.page-faq .rail__link.is-active .faq-rail__count {
  color: var(--cinnabar);
}

.page-faq .faq-rail__tip {
  margin: 16px 0 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--slate-text);
}

.page-faq .faq-rail__tip a {
  color: var(--cinnabar);
}

.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  position: relative;
  margin-top: 56px;
  padding-top: 56px;
}

.page-faq .faq-group + .faq-group::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 10px;
  background: repeating-linear-gradient(45deg, rgba(110, 127, 140, 0.4) 0 1px, transparent 1px 8px);
}

.page-faq .faq-group__head {
  margin-bottom: 20px;
}

.page-faq .faq-group__index {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate-text);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__index::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 1px;
  margin-right: 8px;
  vertical-align: middle;
  background: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  color: var(--ink-black);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  margin: 0;
  padding: 0;
}

.page-faq .faq-item {
  position: relative;
  margin-bottom: 10px;
  background: var(--card);
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
  transition: box-shadow 240ms var(--ease-out), background 240ms var(--ease-out);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--faq-cut);
  bottom: var(--faq-cut);
  width: 2px;
  background: var(--gold);
  opacity: 0;
  transition: opacity 240ms var(--ease-out);
}

.page-faq .faq-item[open] {
  background: var(--cream);
  box-shadow: inset 0 0 0 1px var(--faq-line);
}

.page-faq .faq-item[open]::before {
  opacity: 1;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-black);
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q > span {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q::after {
  content: "+";
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--faq-line);
  color: var(--gold);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 320ms var(--ease-out), background 240ms var(--ease-out), color 240ms var(--ease-out);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "−";
  transform: rotate(180deg);
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-green-deep);
}

.page-faq .faq-a {
  margin: 0 20px 20px;
  padding-top: 14px;
  border-top: 1px dashed var(--slate-line);
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--slate-text);
}

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

.page-faq .faq-item[open] .faq-a {
  animation: faqAnswerIn 320ms var(--ease-out);
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-help__grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-help__text {
  min-width: 0;
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--ink-black);
}

.page-faq .faq-help__text > p {
  margin: 0;
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--slate-text);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: 2px;
  background: var(--cinnabar);
}

.page-faq .faq-help .btn-row {
  margin-top: 22px;
}

.page-faq .faq-help__media {
  margin: 0;
  border: 1px solid var(--slate-line);
  overflow: hidden;
}

.page-faq .faq-help__contact {
  margin: 32px 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--slate-line);
  border: 1px solid var(--slate-line);
}

.page-faq .faq-help__contact > div {
  padding: 16px 18px;
  background: var(--card);
}

.page-faq .faq-help__contact dt {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate-text);
}

.page-faq .faq-help__contact dd {
  margin: 0;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ink-black);
  word-break: break-word;
}

/* ---------- 宽屏 ---------- */
@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.85fr);
  }
}

@media (min-width: 700px) {
  .page-faq .faq-help__contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }
}

/* ---------- 窄屏 ---------- */
@media (max-width: 900px) {
  .page-faq .faq-group {
    scroll-margin-top: 76px;
  }

  .page-faq .rail-layout {
    display: block;
  }

  .page-faq .faq-rail {
    position: static;
    margin-bottom: 36px;
    padding: 16px 18px;
    border-left: none;
    border-top: 2px solid var(--gold);
    border-bottom: 1px solid var(--slate-line);
  }

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

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

  .page-faq .rail__link {
    border-bottom: none;
    border: 1px solid var(--slate-line);
    padding: 8px 12px;
    font-size: 0.85rem;
  }

  .page-faq .rail__link:hover,
  .page-faq .rail__link:focus-visible {
    padding-left: 12px;
  }

  .page-faq .rail__link.is-active {
    padding-left: 12px;
    border-color: var(--gold);
    background: rgba(200, 162, 90, 0.14);
    box-shadow: none;
  }

  .page-faq .faq-rail__tip {
    margin-top: 14px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 40px;
    padding-top: 40px;
  }

  .page-faq .faq-q {
    padding: 16px 16px;
    font-size: 0.96rem;
  }

  .page-faq .faq-a {
    margin: 0 16px 18px;
    font-size: 0.92rem;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-jump__link {
    padding: 8px 12px;
    font-size: 0.82rem;
  }

  .page-faq .faq-help__contact > div {
    padding: 14px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }

  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-q::after,
  .page-faq .faq-jump__link,
  .page-faq .rail__link {
    transition: none;
  }
}