.page-faq {
  --faq-answer-bg: #EAF8F4;
  --faq-radius: 14px;
}

/* ---------- 页头 ---------- */
.page-faq .faq-head {
  position: relative;
  overflow: hidden;
  padding-block: clamp(26px, 5vw, 58px) clamp(26px, 5vw, 46px);
  background:
    radial-gradient(52% 76% at 8% 12%, rgba(0, 201, 167, 0.16), transparent 68%),
    radial-gradient(46% 70% at 96% 0%, rgba(45, 125, 255, 0.12), transparent 66%),
    var(--paper);
}

.page-faq .faq-head .page-title {
  max-width: 20ch;
  margin-bottom: 14px;
  letter-spacing: -0.015em;
}

.page-faq .faq-head .lede {
  max-width: 60ch;
  color: var(--graphite);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-block: clamp(28px, 5vw, 52px) clamp(56px, 9vw, 104px);
}

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 264px;
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 右侧五步条 ---------- */
.page-faq .faq-rail {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--white);
  padding: 18px 16px;
}

.page-faq .faq-rail__title {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 11px;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-rail__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mint-ink);
}

.page-faq .faq-rail__list a:hover {
  background: var(--mint-soft);
  border-color: rgba(0, 201, 167, 0.5);
}

.page-faq .faq-rail__list a:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 2px;
}

@media (min-width: 1024px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 88px;
  }
}

@media (max-width: 1023px) {
  .page-faq .faq-rail {
    order: -1;
    padding: 14px 12px;
  }

  .page-faq .faq-rail__list {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    padding-bottom: 4px;
    overflow-x: auto;
    scrollbar-width: thin;
  }

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

  .page-faq .faq-rail__list a {
    white-space: nowrap;
    background: var(--paper);
  }
}

/* ---------- 编号章节 ---------- */
.page-faq .faq-section {
  padding-block: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-section__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: clamp(28px, 7vw, 42px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--mint-ink);
}

.page-faq .faq-section__title {
  margin: 0 0 10px;
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.32;
  letter-spacing: -0.01em;
}

.page-faq .faq-section__intro {
  margin: 0;
  max-width: 58ch;
  color: var(--graphite);
  font-size: 15.5px;
  line-height: 1.8;
}

@media (min-width: 760px) {
  .page-faq .faq-section {
    display: grid;
    grid-template-columns: 78px minmax(0, 1fr);
    column-gap: 26px;
    align-items: start;
  }

  .page-faq .faq-section__num {
    grid-column: 1;
    position: sticky;
    top: 90px;
    margin-bottom: 0;
    font-size: 46px;
  }

  .page-faq .faq-section__content {
    grid-column: 2;
  }
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .faq-figure .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--paper-warm);
}

.page-faq .faq-figure .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  color: var(--graphite);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 图文并排 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 22px;
  margin-top: 22px;
}

.page-faq .faq-split .faq-list {
  margin-top: 0;
}

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

@media (min-width: 880px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 248px;
    align-items: start;
    gap: 26px;
  }
}

/* ---------- 五步路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--white);
  scroll-margin-top: 96px;
  transition: border-color 0.24s var(--ease);
}

.page-faq .faq-step:target {
  border-color: var(--electric);
  box-shadow: 0 0 0 3px rgba(45, 125, 255, 0.14);
}

.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--mint-soft);
  color: var(--mint-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}

.page-faq .faq-step__title {
  margin: 0 0 4px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-step__body p {
  margin: 0;
  color: var(--graphite);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-item {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--white);
  transition: border-color 0.24s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(0, 201, 167, 0.55);
}

.page-faq .faq-item[open] {
  border-color: var(--mint);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 16px 46px 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

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

.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 21px;
  width: 10px;
  height: 10px;
  border-right: 1.6px solid var(--graphite);
  border-bottom: 1.6px solid var(--graphite);
  transform: rotate(45deg);
  transition: transform 0.3s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
  border-color: var(--mint-ink);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: -2px;
}

.page-faq .faq-item__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--graphite);
}

.page-faq .faq-item--filter .faq-item__dot {
  background: var(--mint);
}

.page-faq .faq-item--sync .faq-item__dot {
  background: var(--electric);
}

.page-faq .faq-item--note .faq-item__dot {
  background: var(--amber);
}

.page-faq .faq-item--fix .faq-item__dot {
  background: var(--mint-ink);
}

.page-faq .faq-item__a {
  padding: 14px 18px 18px 37px;
  border-radius: 0 0 13px 13px;
  background: var(--faq-answer-bg);
  color: var(--ink);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 62ch;
}

.page-faq .faq-item__a a {
  color: var(--electric);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--mint-ink);
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faq-open 0.28s var(--ease);
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__q::after,
  .page-faq .faq-item,
  .page-faq .faq-step,
  .page-faq .faq-rail__list a {
    transition: none;
  }
}