.page-faq {
  --faq-cat-mismatch: var(--violet);
  --faq-cat-missing: var(--cyan);
  --faq-cat-range: var(--gold);
  --faq-cat-fix: var(--red);
  --faq-qa-gap: clamp(12px, 1.5vw, 18px);
  display: block;
  background-color: var(--ink);
  background-image:
    radial-gradient(120% 55% at 88% -8%, rgba(123, 77, 255, .18), transparent 60%),
    radial-gradient(90% 45% at 4% 3%, rgba(46, 230, 214, .07), transparent 58%);
  background-repeat: no-repeat;
  color: var(--paper);
  padding-bottom: clamp(56px, 8vw, 120px);
  overflow-x: clip;
}

.page-faq .section {
  padding-top: clamp(30px, 4.6vw, 64px);
  padding-bottom: 0;
}

/* ---------- 面包屑与首屏 ---------- */
.page-faq .breadcrumb {
  padding-top: clamp(20px, 3vw, 38px);
}

.page-faq .faq-intro .shell {
  display: block;
}

.page-faq .faq-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5.2vw, 62px);
  line-height: 1.05;
  letter-spacing: -.015em;
  margin: 14px 0 0;
  max-width: 19ch;
  color: var(--paper);
}

.page-faq .faq-lede {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 64ch;
  color: var(--mist);
  font-size: 16.5px;
  line-height: 1.78;
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: clamp(24px, 3.2vw, 36px) 0 0;
  padding: clamp(14px, 1.8vw, 18px) 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: .07em;
  color: var(--mist);
}

.page-faq .faq-meta li {
  position: relative;
  padding-left: 14px;
}

.page-faq .faq-meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-main-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 2.6vw, 30px);
}

.page-faq .faq-main-head .section-title {
  margin: 0;
  max-width: 22ch;
}

.page-faq .faq-main-head p {
  margin: 0;
  max-width: 58ch;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.7;
}

/* ---------- 问答墙与筛选 ---------- */
.page-faq .faq-wall {
  display: grid;
  gap: var(--faq-qa-gap);
}

.page-faq .faq-filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: clamp(12px, 1.6vw, 16px) clamp(14px, 1.8vw, 20px);
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-faq .faq-filter-label {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
  flex: 0 0 auto;
}

.page-faq .faq-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip-group--term {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.page-faq .filter-chip {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: .05em;
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .filter-chip:hover {
  color: var(--paper);
  border-color: rgba(46, 230, 214, .5);
}

.page-faq .filter-chip[aria-pressed="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.page-faq .filter-chip--term[aria-pressed="true"] {
  background: var(--violet);
  border-color: var(--violet);
  color: var(--paper);
}

.page-faq .filter-status {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

/* ---------- 单条问答 ---------- */
.page-faq .qa {
  position: relative;
  padding-left: clamp(46px, 5.6vw, 74px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 0;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--mist);
  transition: background var(--dur) var(--ease);
}

.page-faq .qa--mismatch::before { background: var(--faq-cat-mismatch); }
.page-faq .qa--missing::before { background: var(--faq-cat-missing); }
.page-faq .qa--range::before { background: var(--faq-cat-range); }
.page-faq .qa--fix::before { background: var(--faq-cat-fix); }

.page-faq .qa:hover {
  background: var(--panel-2);
}

.page-faq .qa:focus-within {
  border-color: rgba(46, 230, 214, .45);
}

.page-faq .qa__no {
  position: absolute;
  left: 0;
  top: 0;
  width: clamp(46px, 5.6vw, 74px);
  padding-top: clamp(18px, 2vw, 22px);
  text-align: center;
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
  transition: color var(--dur) var(--ease);
}

.page-faq details[open] .qa__no {
  color: var(--cyan);
}

.page-faq .qa__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: clamp(16px, 2vw, 21px) clamp(18px, 2.2vw, 26px) clamp(16px, 2vw, 21px) 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16.5px, 1.55vw, 20px);
  line-height: 1.4;
  color: var(--paper);
}

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

.page-faq .qa__q {
  flex: 1 1 22ch;
  min-width: 0;
}

.page-faq .qa__marker {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-left: auto;
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa__marker::before,
.page-faq .qa__marker::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .qa__marker::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
}

.page-faq .qa__marker::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
}

.page-faq details[open] .qa__marker { color: var(--cyan); }
.page-faq details[open] .qa__marker::after { transform: scaleY(0); opacity: 0; }

.page-faq .qa__body {
  max-width: 66ch;
  padding: 0 clamp(18px, 2.2vw, 26px) clamp(18px, 2.2vw, 24px) 0;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.78;
}

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

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

.page-faq .faq-link {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(46, 230, 214, .45);
  transition: text-decoration-color var(--dur) var(--ease);
}

.page-faq .faq-link:hover {
  text-decoration-color: var(--cyan);
}

/* ---------- 内联区间色块 ---------- */
.page-faq .range-pill {
  display: inline-block;
  font-family: var(--font-num);
  font-size: .76em;
  letter-spacing: .04em;
  line-height: 1.5;
  padding: 0 8px;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
  vertical-align: 2px;
  font-variant-numeric: tabular-nums;
}

.page-faq .range-pill--a {
  color: var(--cyan);
  background: rgba(46, 230, 214, .1);
}

.page-faq .range-pill--b {
  color: var(--violet);
  background: rgba(123, 77, 255, .14);
}

.page-faq .range-pill--c {
  color: var(--gold);
  background: rgba(255, 154, 46, .12);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(10px, 1.6vw, 18px) 0;
  border-left: 3px solid var(--line);
  padding-left: clamp(14px, 2vw, 22px);
}

.page-faq .faq-figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--panel);
}

.page-faq .faq-figure .media-frame__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.62;
  color: var(--mist);
  max-width: 64ch;
}

.page-faq .faq-figure--side {
  border-left-color: var(--gold);
}

/* ---------- 站点入口 ---------- */
.page-faq .faq-entry__panel {
  padding: clamp(24px, 3.4vw, 46px);
  background: var(--panel-2);
  border: 1px solid var(--line);
}

.page-faq .faq-entry__panel .section-title {
  margin: 10px 0 0;
  max-width: 24ch;
}

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

.page-faq .faq-entry__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin-top: clamp(22px, 2.8vw, 32px);
}

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .page-faq .faq-chip-group--term {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 10px;
    width: 100%;
  }
}

@media (max-width: 720px) {
  .page-faq .qa {
    padding-left: 44px;
  }

  .page-faq .qa__no {
    width: 44px;
    padding-top: 18px;
    font-size: 11.5px;
  }

  .page-faq .qa__summary {
    padding-right: 16px;
  }

  .page-faq .qa__body {
    padding-right: 16px;
  }

  .page-faq .faq-filter-bar {
    align-items: flex-start;
  }

  .page-faq .faq-filter-label {
    width: 100%;
  }

  .page-faq .faq-meta {
    gap: 8px 18px;
    font-size: 12px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-main-head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 3fr);
    align-items: end;
    gap: clamp(24px, 4vw, 64px);
  }

  .page-faq .faq-figure--side {
    max-width: 66%;
  }
}
</main>