.page-faq {
  --faq-line: rgba(30, 53, 80, .92);
  --faq-line-soft: rgba(30, 53, 80, .6);
  --faq-panel: linear-gradient(180deg, rgba(15, 27, 46, .88), rgba(7, 13, 24, .62));
  padding-bottom: clamp(48px, 9vw, 104px);
}

.page-faq .yx-breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(22px, 4vw, 40px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  left: -12%;
  right: -12%;
  height: 460px;
  pointer-events: none;
  background:
    radial-gradient(52% 74% at 16% 0%, rgba(53, 230, 212, .15), transparent 68%),
    radial-gradient(46% 68% at 86% 14%, rgba(255, 107, 44, .12), transparent 70%);
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 42px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-size: clamp(2rem, 7vw, 3.5rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: .06em;
  color: var(--warm);
  max-width: 16ch;
}

.page-faq .faq-hero__lead {
  margin-top: 18px;
  max-width: 56ch;
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 4vw, 1.65rem);
  letter-spacing: .04em;
  color: var(--cyan);
  line-height: 1.1;
}

.page-faq .faq-hero__stats li:nth-child(2) .faq-stat__num { color: var(--orange); }
.page-faq .faq-hero__stats li:nth-child(3) .faq-stat__num { color: var(--warm); }
.page-faq .faq-hero__stats li:nth-child(4) .faq-stat__num { color: var(--green); }

.page-faq .faq-stat__lab {
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--mist);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  margin-bottom: clamp(20px, 3.4vw, 34px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(15, 27, 46, .92), rgba(7, 13, 24, .7));
}

.page-faq .faq-filter__label {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
  margin-right: 4px;
}

.page-faq .faq-chip {
  appearance: none;
  cursor: pointer;
  padding: 8px 15px;
  border-radius: var(--pill);
  border: 1px solid var(--faq-line);
  background: rgba(22, 38, 61, .5);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: .82rem;
  letter-spacing: .04em;
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-faq .faq-chip:hover {
  color: var(--warm);
  border-color: rgba(53, 230, 212, .48);
}

.page-faq .faq-chip[aria-pressed="true"],
.page-faq .faq-chip.is-active {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 分栏骨架 ---------- */
.page-faq .faq-body {
  display: block;
}

/* ---------- 侧边索引 ---------- */
.page-faq .faq-index {
  padding: 18px;
  margin-bottom: 22px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(15, 27, 46, .92), rgba(7, 13, 24, .55));
}

.page-faq .faq-index__eyebrow {
  margin: 0 0 12px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index__list > li {
  flex: 1 1 168px;
  min-width: 0;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  color: var(--mist);
  text-decoration: none;
  font-size: .88rem;
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--warm);
  border-color: var(--grid);
  background: rgba(22, 38, 61, .7);
  outline: none;
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--cyan);
  flex: none;
}

.page-faq .faq-index__hint {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: .8rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-index__hint a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 212, .35);
}

.page-faq .faq-index__hint a:hover {
  color: var(--warm);
  border-bottom-color: var(--warm);
}

/* ---------- 答案分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 108px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(30px, 5vw, 52px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .1em;
  color: var(--orange);
  flex: none;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(1.15rem, 3.4vw, 1.5rem);
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--warm);
  line-height: 1.3;
}

/* ---------- 折叠卡片 ---------- */
.page-faq .faq-item {
  margin-bottom: 12px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-panel);
  overflow: hidden;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(53, 230, 212, .42);
  box-shadow: 0 22px 50px -34px rgba(53, 230, 212, .6);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px clamp(16px, 3vw, 22px);
  cursor: pointer;
  list-style: none;
  color: var(--warm);
  font-weight: 600;
  font-size: .98rem;
  line-height: 1.6;
  transition: color .25s var(--ease);
}

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

.page-faq .faq-item > summary:hover {
  color: var(--cyan);
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--cyan);
  transition: transform .3s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
}

.page-faq .faq-item__no {
  flex: none;
  padding-top: .22em;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--mist);
}

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

.page-faq .faq-item__body {
  margin: 0 clamp(16px, 3vw, 22px) 20px;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line-soft);
  color: var(--mist);
  font-size: .93rem;
  line-height: 1.8;
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
}

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

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 212, .35);
}

.page-faq .faq-item__body a:hover {
  color: var(--warm);
  border-bottom-color: var(--warm);
}

.page-faq .faq-item__body b {
  color: var(--warm);
  font-weight: 600;
}

/* ---------- 步骤与操作片段 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 14px 0 12px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-steps > li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: .9rem;
  line-height: 1.72;
}

.page-faq .faq-steps__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--orange);
  padding-top: .22em;
}

.page-faq .faq-code {
  margin: 14px 0 0;
  padding: 10px 14px;
  border: 1px dashed rgba(53, 230, 212, .34);
  border-radius: var(--radius-sm);
  background: rgba(53, 230, 212, .07);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

/* ---------- 联系方式清单 ---------- */
.page-faq .faq-contact {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .faq-contact > li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(22, 38, 61, .52);
}

.page-faq .faq-contact__k {
  flex: none;
  min-width: 64px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--mist);
  padding-top: .2em;
}

.page-faq .faq-contact__v {
  min-width: 0;
  color: var(--warm);
  font-size: .9rem;
  overflow-wrap: anywhere;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 0;
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: .78rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-empty {
  margin: 8px 0 0;
  padding: 14px 16px;
  border: 1px dashed var(--faq-line);
  border-radius: var(--radius-md);
  font-size: .86rem;
  color: var(--mist);
}

/* ---------- 桌面分栏 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-self: end;
  }

  .page-faq .faq-body {
    display: grid;
    grid-template-columns: minmax(200px, 250px) minmax(0, 1fr);
    gap: clamp(26px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    margin-bottom: 0;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
  }

  .page-faq .faq-index__list > li {
    flex: none;
  }

  .page-faq .faq-index__link {
    border-radius: var(--radius-sm);
  }

  .page-faq .faq-figure--tall {
    max-width: 340px;
  }

  .page-faq .faq-figure--wide figcaption {
    max-width: 62ch;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}