.page-faq {
  --faq-gap: clamp(40px, 6vw, 82px);
  --faq-line: rgba(14, 27, 61, .13);
  --faq-gold-line: rgba(200, 154, 75, .34);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-faq .faq-head {
  max-width: 46em;
  margin-bottom: clamp(20px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(16px, 3vw, 30px) 0 clamp(34px, 5vw, 62px);
  background:
    radial-gradient(88% 70% at 88% 2%, rgba(200, 154, 75, .22), transparent 62%),
    radial-gradient(66% 62% at 2% 98%, rgba(46, 140, 134, .10), transparent 68%),
    var(--paper);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(90deg, rgba(14, 27, 61, .05) 0 1px, transparent 1px 68px);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
  margin-top: clamp(14px, 2vw, 22px);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5vw, 52px);
  line-height: 1.15;
  letter-spacing: -.01em;
}

.page-faq .faq-hero__desc {
  max-width: 36em;
  margin: 0 0 22px;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.82;
  color: var(--ink-78);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-66);
}

.page-faq .faq-hero__facts .mono {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--clay);
}

/* ---------- 文档下载卡 ---------- */

.page-faq .faq-dl {
  position: relative;
  padding: 22px 20px 18px;
  background: var(--paper-light);
  border: 1px solid var(--faq-gold-line);
  border-radius: var(--radius-soft);
  box-shadow: var(--shadow-raise);
  overflow: hidden;
  scroll-margin-top: 84px;
}

.page-faq .faq-dl::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46px;
  height: 46px;
  background: linear-gradient(225deg, var(--gold-bright) 0 48%, var(--gold) 48% 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-faq .faq-dl__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--teal);
}

.page-faq .faq-dl__title {
  margin: 0 12px 10px 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-dl__desc {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-66);
}

.page-faq .faq-dl__img {
  display: block;
  width: 100%;
  height: 168px;
  margin: 16px 0 18px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line-soft);
  background: var(--paper);
}

.page-faq .faq-dl__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-dl__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-gold-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--slate);
}

/* ---------- 锚点条 ---------- */

.page-faq .faq-anchors {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ink);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-anchors__inner {
  display: flex;
  gap: 6px;
  padding: 9px 0;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .anchor-link {
  flex: 0 0 auto;
  padding: 6px 13px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--text-on-dark-dim);
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s, background-color .18s, border-color .18s;
}

.page-faq .anchor-link:hover {
  color: var(--gold-bright);
  border-color: rgba(232, 184, 92, .45);
}

.page-faq .anchor-link[aria-current="true"] {
  background: var(--gold-bright);
  border-color: var(--gold-bright);
  color: var(--ink);
}

/* ---------- 问答区 ---------- */

.page-faq .faq-answers {
  padding: var(--faq-gap) 0 calc(var(--faq-gap) * .78);
  background: var(--paper-light);
  border-bottom: 1px solid var(--faq-line);
  scroll-margin-top: 76px;
}

.page-faq .faq-filter {
  display: flex;
  gap: 8px;
  margin: 0 0 22px;
  padding: 4px 2px 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .filter-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(14, 27, 61, .2);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color .18s, border-color .18s, color .18s;
}

.page-faq .filter-btn:hover {
  border-color: var(--gold);
  background: rgba(200, 154, 75, .14);
}

.page-faq .filter-btn:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 2px;
}

.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--paper-light);
}

.page-faq .filter-count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  opacity: .82;
}

.page-faq .faq-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .faq-item {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .18s, box-shadow .18s;
}

.page-faq .faq-item[hidden] {
  display: none;
}

.page-faq .faq-item:hover {
  border-color: var(--faq-gold-line);
}

.page-faq .faq-item[open] {
  border-color: var(--gold);
  box-shadow: 0 12px 26px -22px rgba(10, 19, 48, .8);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 15px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__head:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid var(--hairline);
  border-radius: 50%;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink-66);
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__sign::before {
  width: 8px;
  height: 1px;
}

.page-faq .faq-item__sign::after {
  width: 1px;
  height: 8px;
  transition: opacity .18s;
}

.page-faq .faq-item[open] .faq-item__sign {
  border-color: var(--clay);
}

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

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

.page-faq .faq-item__body {
  padding: 0 15px 16px;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-78);
}

.page-faq .faq-item__body > p {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-steps {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  margin-left: 9px;
  padding: 0 0 10px 26px;
  border-left: 1px solid var(--faq-line);
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: -9px;
  top: 0;
  width: 28px;
  text-align: center;
  transform: translateX(-50%);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  line-height: 1.9;
  color: var(--clay);
}

.page-faq .faq-empty {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  padding: 18px 16px;
  border: 1px dashed var(--faq-gold-line);
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate);
}

/* ---------- 检索路径 ---------- */

.page-faq .faq-searchfix {
  padding: var(--faq-gap) 0;
  scroll-margin-top: 76px;
}

.page-faq .faq-searchfix__inner {
  display: grid;
  gap: clamp(22px, 3.5vw, 40px);
  padding: clamp(22px, 3.4vw, 36px);
  border: 1px solid rgba(46, 140, 134, .32);
  border-radius: 18px;
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(46, 140, 134, .16), transparent 62%),
    rgba(46, 140, 134, .06);
}

.page-faq .faq-searchfix__fig {
  margin: 0;
  order: -1;
}

.page-faq .faq-searchfix__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid rgba(46, 140, 134, .26);
}

.page-faq .faq-searchfix__fig figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--teal);
}

.page-faq .faq-searchfix__title {
  margin: 6px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-searchfix__body p {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-78);
}

.page-faq .faq-searchfix__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-searchfix__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  background: rgba(251, 246, 236, .78);
  border: 1px solid rgba(46, 140, 134, .2);
  font-size: 13.5px;
  color: var(--ink);
}

.page-faq .faq-searchfix__list .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--teal);
}

/* ---------- 更新节奏 ---------- */

.page-faq .faq-updates {
  padding: 0 0 var(--faq-gap);
  scroll-margin-top: 76px;
}

.page-faq .faq-rhythm {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-rhythm__row {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-rhythm__tag {
  justify-self: start;
  padding: 3px 10px;
  border: 1px solid var(--faq-gold-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold);
  background: rgba(200, 154, 75, .08);
}

.page-faq .faq-rhythm__text h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-rhythm__text p {
  margin: 0;
  max-width: 42em;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-78);
}

.page-faq .faq-updates__more {
  margin: 24px 0 0;
}

/* ---------- 人工协助 ---------- */

.page-faq .faq-help {
  padding: var(--faq-gap) 0 calc(var(--faq-gap) * .9);
  background:
    radial-gradient(90% 130% at 12% 0%, rgba(46, 140, 134, .2), transparent 58%),
    var(--ink);
  color: var(--paper);
  scroll-margin-top: 76px;
}

.page-faq .faq-help__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-help .section-kicker {
  color: var(--gold-bright);
}

.page-faq .faq-help__title {
  margin: 8px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 800;
  line-height: 1.28;
  color: var(--paper);
}

.page-faq .faq-help__desc {
  margin: 0 0 18px;
  max-width: 34em;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-faq .faq-help__points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__points li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: var(--text-on-dark);
}

.page-faq .faq-help__points .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold-bright);
}

.page-faq .faq-help__panel {
  padding: 20px 18px;
  border: 1px solid var(--line-dark);
  border-radius: 14px;
  background: rgba(22, 41, 92, .55);
}

.page-faq .faq-help__cta {
  margin: 0 0 16px;
}

.page-faq .faq-help__contact {
  display: grid;
  gap: 9px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help__contact .mono {
  min-width: 34px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-on-dark-dim);
}

.page-faq .faq-help__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--text-on-dark-dim);
}

.page-faq .faq-help__note a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-rhythm__row {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }

  .page-faq .faq-rhythm__tag {
    justify-self: start;
    margin-top: 2px;
  }

  .page-faq .faq-help__panel {
    padding: 24px 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .8fr);
    align-items: start;
  }

  .page-faq .faq-dl {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-list {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 14px 18px;
  }

  .page-faq .faq-searchfix__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }

  .page-faq .faq-searchfix__fig {
    order: 0;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .anchor-link,
  .page-faq .filter-btn,
  .page-faq .faq-item,
  .page-faq .faq-item__sign::after {
    transition: none;
  }
}