.page-faq {
  --faq-gap: clamp(20px, 4vw, 32px);
}

.page-faq img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--c-orange);
}

.page-faq .faq-kicker--light {
  color: var(--c-gold);
}

.page-faq .faq-kicker--light::before {
  background: var(--c-gold);
}

.page-faq h1 {
  margin: 16px 0 0;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--c-deep);
}

.page-faq .faq-lede {
  max-width: 66ch;
  margin: 18px 0 0;
  font-size: clamp(16px, 2.1vw, 18.5px);
  line-height: 1.75;
  color: var(--c-ink);
}

.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-metric {
  padding: 14px 12px 16px;
  background: var(--c-white);
}

.page-faq .faq-metric__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-deep);
}

.page-faq .faq-metric__num--orange { color: var(--c-orange); }
.page-faq .faq-metric__num--teal { color: var(--c-teal); }
.page-faq .faq-metric__num--wine { color: var(--c-wine); }

.page-faq .faq-metric__label {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--c-gray);
  letter-spacing: .02em;
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-steps__head {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.page-faq .faq-sec-title {
  margin: 0;
  font-size: clamp(23px, 4.6vw, 38px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--c-deep);
}

.page-faq .faq-sec-lede {
  max-width: 62ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--c-gray);
}

/* ---------- 步骤进度条 ---------- */
.page-faq .faq-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-bottom: 22px;
}

.page-faq .faq-rail__seg {
  height: 6px;
  background: rgba(10, 37, 64, .08);
  border: 1px solid var(--line);
}

.page-faq .faq-rail__seg--1 { background: var(--c-gold); border-color: var(--c-gold); }
.page-faq .faq-rail__seg--2 { background: var(--c-orange); border-color: var(--c-orange); }
.page-faq .faq-rail__seg--3 { background: var(--c-green); border-color: var(--c-green); }

/* ---------- 三步卡片 ---------- */
.page-faq .faq-steps__grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-steps__list {
  display: grid;
  gap: 16px;
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--c-white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--c-gold);
  transition: transform var(--t-mid), box-shadow var(--t-mid);
}

.page-faq .faq-step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-step--2 { border-top-color: var(--c-orange); }
.page-faq .faq-step--3 { border-top-color: var(--c-green); }

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-wine);
}

.page-faq .faq-step--2 .faq-step__num { color: var(--c-orange); }
.page-faq .faq-step--3 .faq-step__num { color: var(--c-green); }

.page-faq .faq-step__title {
  margin: 14px 0 8px;
  font-size: 19px;
  line-height: 1.35;
  color: var(--c-deep);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--c-ink);
}

.page-faq .faq-step__meta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--c-gray);
}

.page-faq .faq-steps__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 0;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--c-mist);
}

.page-faq .faq-figure__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  background: var(--c-white);
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-gray);
}

.page-faq .faq-figure--inline {
  margin: 0 0 6px;
  border-bottom: 1px solid var(--line);
}

/* ---------- 问题区布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 24px;
}

.page-faq .faq-index {
  padding: 16px 16px 12px;
  background: var(--c-white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--c-teal);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-gray);
}

.page-faq .faq-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 4px;
  font-size: 14.5px;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--t-fast);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-orange);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-wine);
}

.page-faq .faq-panels {
  display: grid;
  gap: 20px;
}

/* ---------- 手风琴分组 ---------- */
.page-faq .faq-group {
  background: var(--c-white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--c-teal);
}

.page-faq .faq-group--wine { border-top-color: var(--c-wine); }
.page-faq .faq-group--gold { border-top-color: var(--c-gold); }

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  background: var(--c-mist);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-wine);
}

.page-faq .faq-group--wine .faq-group__num { color: var(--c-teal); }
.page-faq .faq-group--gold .faq-group__num { color: var(--c-orange); }

.page-faq .faq-group__title {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  color: var(--c-deep);
}

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

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-deep);
  cursor: pointer;
  list-style: none;
  transition: background var(--t-fast);
}

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

.page-faq .faq-item summary:hover {
  background: rgba(255, 107, 53, .06);
}

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--c-orange);
  transition: transform var(--t-fast);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
}

.page-faq .faq-item__a {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink);
  border-left: 3px solid var(--c-gold);
  margin-left: 18px;
  padding-left: 15px;
}

.page-faq .faq-item__a .inline-link {
  color: var(--c-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-contact__title {
  margin: 14px 0 0;
  font-size: clamp(23px, 4.4vw, 36px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--c-white);
}

.page-faq .faq-contact__lede {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(244, 247, 249, .82);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
}

.page-faq .faq-contact__channels {
  display: grid;
  gap: 12px;
}

.page-faq .faq-channel {
  padding: 15px 16px;
  border: 1px solid var(--line-inv);
  background: rgba(244, 247, 249, .04);
}

.page-faq .faq-channel__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(244, 247, 249, .6);
}

.page-faq .faq-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-gold);
  word-break: break-word;
}

.page-faq .faq-channel__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 247, 249, .72);
}

.page-faq .copy-status {
  min-height: 1.3em;
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--c-green);
}

.page-faq .copy-status.is-copied {
  color: var(--c-green);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-metric {
    padding: 18px 18px 20px;
  }

  .page-faq .faq-index__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-item summary {
    padding: 17px 22px;
    font-size: 16px;
  }

  .page-faq .faq-item__a {
    padding: 0 22px 20px;
    margin-left: 22px;
    padding-left: 18px;
    font-size: 15.5px;
  }

  .page-faq .faq-group__head {
    padding: 18px 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-faq .faq-figure {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-figure--inline {
    position: static;
  }

  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-metrics {
    max-width: 720px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-item summary,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-step:hover {
    transform: none;
  }
}