.page-faq {
  --faq-rail: 212px;
  color: var(--slate);
  font-family: var(--font-body);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 10% 6%, rgba(200, 154, 82, .10), transparent 40%),
    radial-gradient(circle at 92% 78%, rgba(63, 90, 97, .07), transparent 44%);
  background-repeat: no-repeat;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 22px;
}

.page-faq .faq-hero-frame {
  position: relative;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--card);
  padding: clamp(26px, 4vw, 48px) clamp(20px, 4vw, 50px);
  overflow: hidden;
}

.page-faq .faq-hero-frame::before,
.page-faq .faq-hero-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--rule-strong) 0 1px, transparent 1px 15px);
  opacity: .65;
  pointer-events: none;
}

.page-faq .faq-hero-frame::before { top: 0; }
.page-faq .faq-hero-frame::after { bottom: 0; }

.page-faq .faq-hero-grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 4.4vw, 50px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--ink);
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 40ch;
}

.page-faq .faq-quick {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  max-width: 44ch;
}

.page-faq .faq-quick li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.7;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--rule);
}

.page-faq .faq-quick-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--sand-deep);
  padding-top: 3px;
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero-media {
  margin: 0;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
  box-shadow: -8px 8px 0 -1px var(--dune);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-hero-media figcaption {
  padding: 12px 14px 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate-soft);
  border-top: 1px dashed var(--rule);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 0;
  margin-top: clamp(36px, 5vw, 66px);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  position: relative;
  padding: 26px 0 14px;
  scroll-margin-top: 100px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 26px;
  padding-top: 42px;
}

.page-faq .faq-group + .faq-group::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 0;
  right: 0;
  height: 12px;
  background-image: radial-gradient(circle, var(--rule-strong) 2.2px, transparent 2.4px);
  background-size: 26px 12px;
  background-position: 4px center;
  background-repeat: repeat-x;
  pointer-events: none;
}

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

.page-faq .faq-sticker {
  display: inline-block;
  padding: 5px 13px 6px;
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .1em;
  border-radius: 2px;
  transform: rotate(-1.6deg);
  box-shadow: var(--shadow-sticker);
  white-space: nowrap;
  transition: background-color 200ms var(--ease), color 200ms var(--ease);
}

.page-faq .faq-group:target .faq-sticker {
  background: var(--goji);
  color: var(--card);
}

.page-faq .faq-group-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.3vw, 27px);
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 0;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  border-top: 1px dashed var(--rule);
}

.page-faq .qa-item {
  border-bottom: 1px dashed var(--rule);
}

.page-faq .qa-item > summary {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: start;
  padding: 15px 4px;
  cursor: pointer;
  list-style: none;
  transition: background-color 180ms var(--ease);
}

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

.page-faq .qa-item > summary:hover {
  background: rgba(228, 196, 138, .22);
}

.page-faq .qa-item > summary:focus-visible {
  outline: 2px solid var(--goji);
  outline-offset: 2px;
  border-radius: 3px;
}

.page-faq .qa-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--slate-soft);
  padding-top: 5px;
  transition: color 180ms var(--ease);
}

.page-faq .qa-item[open] .qa-num {
  color: var(--ink);
}

.page-faq .qa-q {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .qa-toggle {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  justify-self: end;
}

.page-faq .qa-toggle::before,
.page-faq .qa-toggle::after {
  content: "";
  position: absolute;
  background: var(--sand-deep);
  transition: transform 240ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .qa-toggle::before { top: 7px; left: 0; width: 16px; height: 2px; }
.page-faq .qa-toggle::after { top: 0; left: 7px; width: 2px; height: 16px; }

.page-faq .qa-item[open] .qa-toggle::after { transform: scaleY(0); }
.page-faq .qa-item[open] .qa-toggle::before { background: var(--goji); }

.page-faq .qa-answer {
  position: relative;
  margin: 0 0 16px 54px;
  padding-left: 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 46ch;
}

.page-faq .qa-answer::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 2px;
  border-radius: 2px;
  background: var(--goji);
  transform-origin: top center;
  animation: faq-rule-in 320ms var(--ease) both;
}

@keyframes faq-rule-in {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

.page-faq .qa-answer a {
  color: var(--goji);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

.page-faq .qa-answer a:hover {
  text-decoration-style: solid;
}

/* 带配图的问答组 */
.page-faq .qa-with-media {
  display: grid;
  gap: 24px;
}

.page-faq .qa-media {
  margin: 0;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
  box-shadow: 6px 6px 0 -1px var(--dune);
}

.page-faq .qa-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .qa-media figcaption {
  padding: 11px 13px 13px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate-soft);
  border-top: 1px dashed var(--rule);
}

/* ---------- 结尾提问块 ---------- */
.page-faq .faq-closing {
  position: relative;
  background: var(--card);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  padding: 26px clamp(18px, 3vw, 30px) 24px;
  box-shadow: var(--shadow-1);
}

.page-faq .faq-closing::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 22px;
  width: 48px;
  height: 3px;
  background: var(--sand);
}

.page-faq .faq-closing p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 46ch;
}

.page-faq .faq-closing .faq-closing-line {
  color: var(--ink);
}

.page-faq .faq-closing a {
  color: var(--goji);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

.page-faq .faq-closing a:hover {
  text-decoration-style: solid;
}

.page-faq .faq-closing-links {
  list-style: none;
  margin: 18px 0 0;
  padding: 18px 0 0;
  border-top: 1px dashed var(--rule);
  display: grid;
  gap: 9px;
}

.page-faq .faq-closing-links li {
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-closing-links li::before {
  content: "→";
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--sand-deep);
  margin-right: 8px;
}

/* ---------- 右侧任务线索引 ---------- */
.page-faq .faq-rail {
  display: none;
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-soft);
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail-list a {
  display: block;
  padding: 9px 8px 9px 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--slate);
  text-decoration: none;
  border-left: 2px solid var(--rule-strong);
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--goji);
  border-left-color: var(--goji);
  background: rgba(228, 196, 138, .24);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 560px) {
  .page-faq .qa-item > summary {
    grid-template-columns: 36px minmax(0, 1fr) 18px;
    gap: 6px;
    padding: 14px 2px;
  }

  .page-faq .qa-q { font-size: 16px; }

  .page-faq .qa-answer {
    margin-left: 0;
    padding-left: 14px;
    max-width: none;
  }

  .page-faq .faq-hero-media { box-shadow: -5px 5px 0 -1px var(--dune); }
  .page-faq .qa-media { box-shadow: 5px 5px 0 -1px var(--dune); }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-hero-media {
    margin-top: 10px;
  }

  .page-faq .faq-group-head {
    margin-top: -6px;
  }

  .page-faq .qa-with-media {
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 32px;
    align-items: start;
  }

  .page-faq .qa-media {
    margin-top: 6px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-answer::before {
    animation: none;
    transform: none;
  }

  .page-faq .qa-toggle::before,
  .page-faq .qa-toggle::after {
    transition: none;
  }
}