.page-faq {
  --faq-line: rgba(232, 217, 168, .16);
  --faq-card: rgba(16, 26, 43, .72);
  --faq-card-open: rgba(28, 51, 43, .92);
  --faq-jade-soft: rgba(79, 179, 154, .10);
  --faq-gold-soft: rgba(201, 162, 39, .10);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--jade);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 54px) 0 clamp(30px, 6vw, 62px);
  border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(120% 100% at 92% 4%, rgba(201, 162, 39, .16), transparent 60%),
    radial-gradient(80% 90% at 0% 100%, rgba(79, 179, 154, .10), transparent 62%),
    linear-gradient(180deg, var(--ink), var(--night));
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: var(--grid-lines);
  background-size: 56px 56px;
  opacity: .5;
  mask-image: linear-gradient(120deg, transparent 42%, #000 100%);
  -webkit-mask-image: linear-gradient(120deg, transparent 42%, #000 100%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--paper);
  max-width: 15em;
}

.page-faq .faq-hero__note {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-72);
}

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

.page-faq .faq-hero__meter {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  align-self: end;
  background: var(--hairline);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-organic);
  overflow: hidden;
}

.page-faq .meter-cell {
  display: grid;
  gap: 6px;
  padding: 16px 16px 18px;
  background: var(--night);
}

.page-faq .meter-cell__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 34px);
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-faq .meter-cell__num em {
  font-style: normal;
  font-size: .52em;
  color: var(--sand);
  margin-left: 2px;
}

.page-faq .meter-cell__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
  letter-spacing: .02em;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 30px;
  padding-top: clamp(30px, 5vw, 58px);
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-index__inner {
  border-left: 1px solid var(--hairline-strong);
  padding-left: 16px;
}

.page-faq .faq-index__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "num count";
  gap: 2px 12px;
  padding: 2px 0 2px 12px;
  margin-left: -13px;
  border-left: 2px solid transparent;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__num {
  grid-area: num;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--gold);
  letter-spacing: .04em;
}

.page-faq .faq-index__name {
  grid-area: name;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: .01em;
}

.page-faq .faq-index__count {
  grid-area: count;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mist);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link.is-active,
.page-faq .faq-index__link[aria-current="true"] {
  border-left-color: var(--gold);
  background: linear-gradient(90deg, var(--faq-gold-soft), transparent 72%);
  transform: translateX(2px);
}

.page-faq .faq-index__link.is-active .faq-index__name,
.page-faq .faq-index__link[aria-current="true"] .faq-index__name {
  color: var(--sand);
}

.page-faq .faq-index__hot {
  margin: 8px 0 0;
  padding: 0 0 0 12px;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-faq .faq-index__hot a {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__hot a:hover {
  color: var(--jade);
  border-bottom-color: rgba(79, 179, 154, .45);
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(44px, 7vw, 78px);
  min-width: 0;
}

.page-faq .faq-group {
  display: grid;
  gap: 20px;
  min-width: 0;
  scroll-margin-top: 92px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  max-width: 62ch;
}

.page-faq .faq-group__tag {
  justify-self: start;
  padding: 4px 12px;
  border: 1px solid rgba(79, 179, 154, .55);
  border-radius: 999px;
  background: var(--faq-jade-soft);
  color: var(--jade);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 33px);
  line-height: 1.32;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-faq .faq-group__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-72);
}

.page-faq .faq-group__intro {
  display: grid;
  gap: 18px;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--mist);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-organic);
  background: var(--faq-card);
  transition: border-color var(--dur) var(--ease), background var(--dur-slow) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(201, 162, 39, .42);
  background: rgba(20, 32, 48, .82);
}

.page-faq .faq-item[open] {
  border-color: rgba(201, 162, 39, .55);
  background: var(--faq-card-open);
}

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
  line-height: 1.7;
}

.page-faq .faq-item__q {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 500;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--sand);
}

.page-faq .faq-item__anchor {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  text-decoration: none;
  padding: 0 2px;
  opacity: 0;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-item__summary:hover .faq-item__anchor,
.page-faq .faq-item__summary:focus-within .faq-item__anchor {
  opacity: .85;
}

.page-faq .faq-item__anchor:hover {
  color: var(--jade);
}

.page-faq .faq-item__arrow {
  align-self: center;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--sand);
  border-bottom: 1.5px solid var(--sand);
  transform: rotate(45deg);
  transition: transform var(--dur-slow) var(--ease);
}

.page-faq .faq-item[open] .faq-item__arrow {
  transform: rotate(225deg);
}

.page-faq .faq-item__body {
  display: grid;
  gap: 12px;
  padding: 2px 16px 18px;
  animation: faq-reveal var(--dur-slow) var(--ease) both;
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-item__lead {
  margin: 0;
  padding: 10px 14px;
  border-left: 2px solid var(--gold);
  background: var(--faq-gold-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-86);
}

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  counter-increment: faq-step;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-72);
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.9;
  text-align: center;
  color: var(--gold);
  background: var(--faq-gold-soft);
  border-radius: 2px;
}

.page-faq .faq-item__case {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  line-height: 1.7;
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 179, 154, .35);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item__case::after {
  content: " →";
}

.page-faq .faq-item__case:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: 26px;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-organic);
  background:
    radial-gradient(100% 80% at 100% 0%, rgba(201, 162, 39, .12), transparent 62%),
    linear-gradient(150deg, rgba(28, 51, 43, .92), rgba(16, 26, 43, .92));
  scroll-margin-top: 92px;
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.34;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-help__note {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-72);
}

.page-faq .faq-help__contact {
  margin: 20px 0 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-contact-line {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--faq-line);
}

.page-faq .faq-contact-line dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-contact-line dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__tip {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sand);
}

.page-faq .faq-help__checklist {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-help__subtitle {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--paper);
}

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

.page-faq .faq-help__list li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-72);
}

.page-faq .faq-help__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.9;
  text-align: center;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 39, .45);
  border-radius: 2px;
}

.page-faq .faq-help__caution {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 20px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-group__intro {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-figure--side {
    margin-top: 4px;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 34px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 46px;
    align-items: end;
  }

  .page-faq .faq-item__summary {
    padding: 17px 22px;
    gap: 16px;
  }

  .page-faq .faq-item__body {
    padding: 2px 22px 20px;
    gap: 14px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-index__list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (hover: none) {
  .page-faq .faq-item__anchor {
    opacity: .55;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}