/* ===== 问答中心 · page-faq ===== */
.page-faq {
  --faq-radius: 20px;
  --faq-gap: 1.1rem;
  background: var(--ivory);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 1.25rem 0 2.25rem;
  background:
    linear-gradient(180deg, rgba(200, 16, 46, .07) 0%, rgba(246, 241, 231, 0) 62%),
    var(--ivory);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -16%;
  width: min(56vw, 460px);
  height: 172%;
  background: linear-gradient(140deg, rgba(200, 16, 46, .16), rgba(45, 156, 219, .12) 66%, rgba(242, 233, 0, .16));
  transform: skewX(var(--skew));
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: 1rem;
}

.page-faq .faq-hero__main {
  background: var(--white);
  border-radius: var(--radius-l);
  padding: clamp(1.3rem, 4.5vw, 2.5rem);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-hero__main h1 {
  margin: .55rem 0 0;
  font-size: clamp(1.8rem, 7.2vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 900;
  max-width: 20ch;
}

.page-faq .faq-hero__main .lede {
  margin-top: .85rem;
  max-width: 54ch;
  color: rgba(17, 17, 17, .74);
}

.page-faq .faq-hero__actions {
  margin-top: 1.4rem;
}

.page-faq .faq-hero__side {
  background: var(--night);
  color: var(--ivory);
  border-radius: var(--radius-l);
  padding: 1.3rem 1.2rem 1.1rem;
}

.page-faq .faq-hero__side-title {
  margin: 0 0 .9rem;
  font-size: .78rem;
  letter-spacing: .18em;
  font-weight: 800;
  color: var(--volt);
  text-transform: uppercase;
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-faq .faq-quick li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .4rem .65rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-quick li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-quick__num {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--volt);
  flex: none;
}

.page-faq .faq-quick__label {
  flex: 1 1 12rem;
  font-size: .86rem;
  line-height: 1.55;
  color: rgba(246, 241, 231, .78);
}

/* ---------- 问题分类主体 ---------- */
.page-faq .faq-body {
  padding: 2rem 0 2.5rem;
  background: var(--ivory);
}

.page-faq .faq-body .section__head {
  margin-bottom: 1.4rem;
}

.page-faq .faq-body .section__head h2 {
  font-size: clamp(1.45rem, 4.4vw, 2.1rem);
  line-height: 1.18;
  margin: .4rem 0 .55rem;
}

.page-faq .faq-body .section__head .muted {
  max-width: 56ch;
  line-height: 1.7;
}

.page-faq .faq-tabs .tab-list {
  display: flex;
  flex-wrap: nowrap;
  gap: .45rem;
  overflow-x: auto;
  padding: .2rem .1rem .7rem;
  margin: 0;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tabs .tab {
  flex: 0 0 auto;
  white-space: nowrap;
  scroll-snap-align: start;
}

.page-faq .faq-panel {
  padding-top: 1.1rem;
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
  border-radius: var(--radius-s);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-group {
  border-top: 2px solid var(--ink);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-faq .qa[open] {
  background: linear-gradient(180deg, rgba(200, 16, 46, .045), rgba(200, 16, 46, 0));
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 2.1rem 1fr 1.1rem;
  gap: .55rem;
  align-items: baseline;
  padding: .95rem .35rem;
  cursor: pointer;
  list-style: none;
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
  transition: color .18s var(--ease);
}

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

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

.page-faq .qa__q:hover {
  color: var(--red);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 6px;
}

.page-faq .qa__num {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--red);
  line-height: 1.9;
}

.page-faq .qa__mark {
  position: relative;
  width: 1.05rem;
  height: 1.05rem;
  align-self: center;
  justify-self: end;
  flex: none;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--red);
  border-radius: 2px;
}

.page-faq .qa__mark::before {
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .qa__mark::after {
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.page-faq .qa[open] .qa__mark::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 .35rem 1.15rem 2.65rem;
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(17, 17, 17, .78);
}

.page-faq .qa__a p {
  margin: 0 0 .6rem;
}

.page-faq .qa__a p:last-child {
  margin-bottom: 0;
}

.page-faq .qa__a a {
  color: var(--red);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  color: var(--red-deep);
}

/* ---------- 图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 1.4rem;
}

.page-faq .faq-figure {
  margin: 0;
}

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

.page-faq .faq-figure figcaption {
  margin-top: .6rem;
  font-size: .8rem;
  line-height: 1.6;
  color: var(--gray);
}

.page-faq .faq-figure--tall {
  max-width: 22rem;
  margin-inline: auto;
}

/* ---------- 联系信息块 ---------- */
.page-faq .faq-contact {
  list-style: none;
  margin: .2rem 0 .9rem;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.page-faq .faq-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem .7rem;
  padding-bottom: .7rem;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-contact li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-contact__label {
  flex: 0 0 4.2rem;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  color: var(--gray);
}

.page-faq .faq-contact__value {
  flex: 1 1 12rem;
  font-size: .92rem;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  font-size: .84rem;
  color: var(--gray);
  line-height: 1.7;
  margin: 0;
}

/* ---------- 底部求助条 ---------- */
.page-faq .faq-help {
  padding: 2.25rem 0 3rem;
  background:
    linear-gradient(120deg, var(--night) 0%, var(--night) 62%, var(--red-deep) 100%);
  color: var(--ivory);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-help__copy h2 {
  margin: .35rem 0 .6rem;
  font-size: clamp(1.4rem, 4.6vw, 2rem);
  line-height: 1.18;
  color: var(--ivory);
}

.page-faq .faq-help__copy p {
  margin: 0;
  max-width: 52ch;
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(246, 241, 231, .78);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  align-items: center;
}

.page-faq .faq-copy .mono {
  font-size: .84rem;
  letter-spacing: .02em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__actions {
    margin-top: 1.6rem;
  }

  .page-faq .faq-split {
    gap: 1.8rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 1.75rem 0 3rem;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .9fr);
    gap: 1.6rem;
    align-items: start;
    margin-top: 1.35rem;
  }

  .page-faq .faq-hero__side {
    padding: 1.6rem 1.5rem 1.4rem;
  }

  .page-faq .faq-tabs .tab-list {
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: .4rem;
  }

  .page-faq .faq-body {
    padding: 2.75rem 0 3.25rem;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .9fr);
    gap: 2.25rem;
    align-items: start;
  }

  .page-faq .faq-split--flip {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.5fr);
  }

  .page-faq .faq-split--flip .faq-figure {
    order: -1;
  }

  .page-faq .faq-help {
    padding: 3rem 0 3.5rem;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
    gap: 2.5rem;
  }

  .page-faq .faq-help__actions {
    justify-content: flex-end;
  }
}

@media (max-width: 599px) {
  .page-faq .qa__a {
    padding-left: .35rem;
  }

  .page-faq .faq-contact__label {
    flex-basis: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__q,
  .page-faq .qa__mark::after {
    transition: none;
  }
}