.page-faq {
  --faq-sticky-top: 104px;
  --faq-gap: 32px;
  display: block;
  padding-bottom: 72px;
}

/* ---------- 面包屑之后的通用节奏 ---------- */
.page-faq .section-head {
  margin-bottom: 20px;
}

.page-faq .faq-body,
.page-faq .faq-ask,
.page-faq .faq-start {
  scroll-margin-top: 108px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 20px;
  padding: 28px 22px 32px;
  background: var(--white);
  border: 3px solid var(--ink-dark);
  border-radius: var(--r-card);
  box-shadow: var(--sh-1);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 88px;
  height: 6px;
  background: var(--blue);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 190px;
  height: 190px;
  border: 2px solid var(--line);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero-kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--blue);
  text-transform: uppercase;
}

.page-faq .faq-hero-title {
  margin: 0 0 16px;
  font-size: clamp(28px, 7vw, 54px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-hero-lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-start {
  margin-top: 56px;
}

.page-faq .start-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .start-step {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--paper);
  border: 2px solid var(--ink-dark);
  border-radius: var(--r-card);
  box-shadow: var(--sh-1);
  transition: transform var(--t-card) var(--ease), box-shadow var(--t-card) var(--ease);
}

.page-faq .start-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--sh-2);
}

.page-faq .start-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 34px;
  padding: 0 10px;
  background: var(--ink-dark);
  color: var(--lime);
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.page-faq .start-step-title {
  margin: 16px 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .start-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 杂志式双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  margin-top: 56px;
}

.page-faq .faq-index {
  align-self: start;
  padding: 18px 16px;
  background: var(--mist);
  border: 2px solid var(--line);
  border-radius: var(--r-card);
}

.page-faq .faq-index-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border-left: 3px solid transparent;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--white);
  color: var(--graphite);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-index-link .mono {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: var(--white);
  color: var(--blue);
  border-left-color: var(--lime);
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-faq .faq-index-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 分组与手风琴 ---------- */
.page-faq .faq-group {
  padding-bottom: var(--faq-gap);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 108px;
}

.page-faq .faq-group + .faq-group {
  padding-top: var(--faq-gap);
}

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

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-faq .faq-group-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 24px;
  padding: 0 8px;
  background: var(--ink-dark);
  color: var(--lime);
  border-radius: var(--r-sm);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-faq .faq-group-title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-group-lead {
  margin: 0 0 20px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-faq .faq-group-lead a,
.page-faq .faq-item-a a {
  color: var(--blue);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-group-lead a:hover,
.page-faq .faq-item-a a:hover {
  color: var(--blue-deep);
}

/* 图文占位 */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 2px solid var(--ink-dark);
  border-radius: var(--r-card);
  box-shadow: var(--sh-1);
  background: var(--mist);
  overflow: hidden;
}

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

/* 手风琴条目 */
.page-faq .faq-items {
  border-top: 1px solid var(--line);
}

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

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

.page-faq .faq-item-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 2px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-item-q:hover {
  color: var(--blue);
}

.page-faq .faq-item-q:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.page-faq .faq-item-sign {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  border: 2px solid var(--ink-dark);
  border-radius: var(--r-sm);
  transition: transform var(--t-card) var(--ease), background var(--t-card) var(--ease), border-color var(--t-card) var(--ease);
}

.page-faq .faq-item-sign::before,
.page-faq .faq-item-sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink-dark);
  transform: translate(-50%, -50%);
  transition: opacity var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-faq .faq-item-sign::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-item-sign::after {
  width: 2px;
  height: 10px;
}

.page-faq .faq-item[open] > .faq-item-q {
  color: var(--blue);
}

.page-faq .faq-item[open] .faq-item-sign {
  transform: rotate(180deg);
  background: var(--blue);
  border-color: var(--blue);
}

.page-faq .faq-item[open] .faq-item-sign::before,
.page-faq .faq-item[open] .faq-item-sign::after {
  background: var(--white);
}

.page-faq .faq-item[open] .faq-item-sign::after {
  opacity: 0;
}

.page-faq .faq-item-a {
  padding: 0 34px 16px 2px;
}

.page-faq .faq-item-a p {
  margin: 0 0 10px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--graphite);
}

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

/* ---------- 深色收尾 ---------- */
.page-faq .faq-ask {
  position: relative;
  margin-top: 56px;
  padding: 34px 22px 38px;
  background: var(--ink-dark);
  border-radius: var(--r-card);
  box-shadow: var(--sh-2);
  overflow: hidden;
}

.page-faq .faq-ask::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 240px;
  height: 240px;
  border: 2px solid rgba(200, 255, 61, 0.24);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-ask-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-ask-title {
  margin: 0 0 14px;
  font-size: clamp(22px, 4.4vw, 32px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-ask-lead {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-contact {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .faq-contact-row {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--r-sm);
}

.page-faq .faq-contact-row dt {
  margin-bottom: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-contact-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-ask .btn {
  position: relative;
  z-index: 1;
  margin-top: 26px;
}

/* ---------- 断点：平板 ---------- */
@media (min-width: 768px) {
  .page-faq {
    padding-bottom: 96px;
  }

  .page-faq .faq-hero {
    margin-top: 28px;
    padding: 40px 44px 46px;
  }

  .page-faq .start-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .start-step {
    padding: 26px 24px 28px;
  }

  .page-faq .faq-group-title {
    font-size: 26px;
  }

  .page-faq .faq-item-q {
    font-size: 17px;
    padding: 17px 2px;
  }

  .page-faq .faq-ask {
    padding: 48px 48px 52px;
    margin-top: 72px;
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 20px;
  }

  .page-faq .faq-contact-row--wide {
    grid-column: 1 / -1;
  }
}

/* ---------- 断点：桌面双栏 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 48px;
    margin-top: 72px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
    padding: 22px 20px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 4px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index-link {
    white-space: normal;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    background: transparent;
    padding: 10px 12px;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    background: var(--white);
  }

  .page-faq .faq-group {
    padding-bottom: 40px;
  }

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

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .start-step,
  .page-faq .faq-item-sign,
  .page-faq .faq-item-sign::before,
  .page-faq .faq-item-sign::after,
  .page-faq .faq-index-link,
  .page-faq .faq-item-q {
    transition: none;
  }

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