.page-faq {
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--font-head);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-masthead {
  position: relative;
  isolation: isolate;
  padding: calc(var(--hdr-h) + 40px) 0 46px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(233, 220, 198, 0.55), rgba(247, 242, 232, 0) 78%);
}

.page-faq .faq-masthead::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -6%;
  width: min(46%, 560px);
  height: 184%;
  z-index: -1;
  transform: rotate(9deg);
  border-radius: var(--r);
  background:
    repeating-linear-gradient(90deg, rgba(242, 101, 34, 0.16) 0 3px, transparent 3px 24px),
    linear-gradient(165deg, rgba(242, 101, 34, 0.16), rgba(30, 144, 255, 0.12));
}

.page-faq .faq-masthead-inner {
  position: relative;
}

.page-faq .faq-masthead h1 {
  margin: 14px 0 0;
  max-width: 17ch;
  font-size: clamp(32px, 6.4vw, 72px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: 0.02em;
}

.page-faq .faq-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-ink);
}

/* ---------- 顶部横幅 ---------- */

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

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1600 / 520;
  object-fit: cover;
  border: 1px solid var(--c-ink);
  border-radius: var(--r);
}

.page-faq .faq-banner figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.6;
  color: var(--c-stone);
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 44px;
  padding-bottom: 76px;
}

.page-faq .faq-index {
  min-width: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-sand);
}

.page-faq .faq-index-head {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-stone);
}

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

.page-faq .faq-index-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--c-ink);
  font-size: 14px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-orange);
}

.page-faq .faq-index-label {
  font-weight: 700;
}

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

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: calc(var(--hdr-h) + 28px);
}

.page-faq .faq-group + .faq-group {
  margin-top: 46px;
  padding-top: 38px;
  border-top: 1px solid var(--c-sand);
}

.page-faq .faq-group-head {
  margin-bottom: 22px;
}

.page-faq .faq-group-head h2 {
  margin: 10px 0 0;
  max-width: 22ch;
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0.04em;
}

.page-faq .faq-group-note {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-stone);
}

/* ---------- 手风琴 ---------- */

.page-faq .accordion-item {
  background: var(--c-paper);
  border: 1px solid var(--c-ink);
  border-left: 4px solid var(--c-sand);
  border-radius: var(--r);
  box-shadow: 5px 5px 0 var(--c-sand-light);
  margin-bottom: 14px;
  transition: box-shadow 0.24s var(--ease), border-left-color 0.24s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .accordion-item:hover {
  box-shadow: 5px 5px 0 var(--c-sand);
}

.page-faq .accordion-item[open] {
  border-left-color: var(--c-orange);
  box-shadow: 5px 5px 0 var(--c-orange-deep);
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-ink);
  transition: background-color 0.2s var(--ease);
}

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

.page-faq .accordion-trigger::marker {
  content: "";
}

.page-faq .accordion-trigger:hover {
  background: var(--c-sand-light);
}

.page-faq .accordion-trigger:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -4px;
}

.page-faq .accordion-trigger::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-stone);
  transition: color 0.2s var(--ease);
}

.page-faq .accordion-item[open] .accordion-trigger::after {
  content: "\2212";
  color: var(--c-orange);
}

.page-faq .q-idx {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-stone);
  transition: color 0.2s var(--ease);
}

.page-faq .accordion-item[open] .q-idx {
  color: var(--c-orange);
}

.page-faq .accordion-panel {
  max-width: 64ch;
  padding: 2px 20px 20px 52px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-faq .accordion-panel p {
  margin: 0 0 10px;
}

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

.page-faq .answer-key {
  padding: 10px 14px;
  background: var(--c-sand-light);
  border-left: 3px solid var(--c-orange);
  border-radius: 0 var(--r) var(--r) 0;
  font-weight: 700;
  line-height: 1.68;
}

.page-faq .answer-key--blue {
  background: var(--c-blue-soft);
  border-left-color: var(--c-blue);
}

.page-faq .text-link {
  color: var(--c-blue);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

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

/* ---------- 数据区配图 ---------- */

.page-faq .faq-figure {
  margin: 26px 0 0;
  border: 1px solid var(--c-ink);
  border-radius: var(--r);
  background: var(--c-paper);
  box-shadow: 7px 7px 0 var(--c-sand);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 11px 16px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.6;
  color: var(--c-stone);
}

/* ---------- 兜底联系带 ---------- */

.page-faq .faq-help {
  position: relative;
  padding: 58px 0 66px;
  background: var(--c-ink);
  color: var(--c-paper);
  clip-path: polygon(0 22px, 100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-help-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-faq .faq-help .eyebrow {
  color: var(--c-orange);
}

.page-faq .faq-help h2 {
  margin: 12px 0 0;
  max-width: 18ch;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0.03em;
  color: var(--c-paper);
}

.page-faq .faq-help-text p {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-sand);
}

.page-faq .faq-contact-strong {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-help .btn {
  margin-top: 26px;
}

.page-faq .faq-help-paths {
  display: grid;
  gap: 10px;
}

.page-faq .faq-path {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 14px 16px;
  border: 1px solid rgba(194, 184, 163, 0.42);
  border-radius: var(--r);
  background: rgba(247, 242, 232, 0.04);
  text-decoration: none;
  color: var(--c-paper);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-path:hover,
.page-faq .faq-path:focus-visible {
  border-color: var(--c-orange);
  background: rgba(242, 101, 34, 0.14);
  transform: translateX(4px);
}

.page-faq .faq-path:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 2px;
}

.page-faq .faq-path-num {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  color: var(--c-orange);
}

.page-faq .faq-path-name {
  grid-column: 2;
  grid-row: 1;
  font-size: 16px;
  font-weight: 700;
}

.page-faq .faq-path-desc {
  grid-column: 2;
  grid-row: 2;
  font-size: 13px;
  line-height: 1.62;
  color: var(--c-sand);
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--hdr-h) + 18px);
    padding-bottom: 0;
    border-bottom: none;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    flex-wrap: wrap;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index-link {
    width: 100%;
    padding: 10px 12px;
    border-bottom: none;
    border-left: 3px solid var(--c-sand);
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    border-left-color: var(--c-orange);
    background: var(--c-sand-light);
  }

  .page-faq .faq-help-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }
}

/* ---------- 窄屏收敛 ---------- */

@media (max-width: 640px) {
  .page-faq .faq-masthead {
    padding: calc(var(--hdr-h) + 24px) 0 34px;
  }

  .page-faq .faq-masthead::before {
    display: none;
  }

  .page-faq .faq-banner figcaption {
    font-size: 11px;
  }

  .page-faq .faq-layout {
    padding-top: 32px;
    padding-bottom: 56px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 38px;
    padding-top: 30px;
  }

  .page-faq .accordion-trigger {
    gap: 10px;
    padding: 15px 14px;
    font-size: 15px;
  }

  .page-faq .accordion-panel {
    padding: 2px 16px 18px 16px;
    font-size: 14.5px;
  }

  .page-faq .faq-figure {
    box-shadow: 5px 5px 0 var(--c-sand);
  }

  .page-faq .faq-help {
    padding: 46px 0 54px;
    clip-path: polygon(0 14px, 100% 0, 100% 100%, 0 100%);
  }
}

/* ---------- 减弱动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion-item,
  .page-faq .accordion-trigger,
  .page-faq .accordion-trigger::after,
  .page-faq .q-idx,
  .page-faq .faq-index-link,
  .page-faq .faq-path {
    transition-duration: 0.001ms;
  }

  .page-faq .faq-path:hover,
  .page-faq .faq-path:focus-visible {
    transform: none;
  }
}