.page-faq {
  --faq-rule: rgba(11, 43, 36, .14);
  --faq-soft: #FBF9F2;
  --faq-body-ink: rgba(16, 20, 19, .76);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 3vw, 28px) clamp(44px, 7vw, 84px);
  background:
    radial-gradient(760px 380px at 88% -8%, rgba(200, 247, 81, .12), transparent 62%),
    radial-gradient(680px 360px at 6% 108%, rgba(62, 92, 75, .5), transparent 70%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(199, 205, 209, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(199, 205, 209, .08) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(72% 78% at 72% 4%, #000 24%, transparent 76%);
  mask-image: radial-gradient(72% 78% at 72% 4%, #000 24%, transparent 76%);
}

.page-faq .faq-hero .container {
  position: relative;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__title {
  font-family: var(--narrow);
  font-size: clamp(32px, 7.2vw, 62px);
  line-height: 1.04;
  letter-spacing: -.015em;
  margin: 14px 0 0;
  max-width: 15em;
  text-wrap: balance;
}

.page-faq .faq-hero__copy .lede {
  margin-top: 18px;
  max-width: 34em;
  color: rgba(242, 239, 230, .82);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--pill);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-jump a span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--lime);
  transition: color .18s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-faq .faq-jump a:hover span,
.page-faq .faq-jump a:focus-visible span {
  color: var(--ink);
}

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

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--rock);
}

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

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
}

.page-faq .faq-hero__figure .media__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--rock);
}

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

/* ---------- 现象对照 ---------- */
.page-faq .faq-map__head {
  max-width: 42em;
}

.page-faq .faq-map__head h2 {
  margin: 12px 0 0;
}

.page-faq .faq-map__head p {
  margin: 12px 0 0;
  color: rgba(242, 239, 230, .74);
}

.page-faq .faq-map__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(24px, 3vw, 38px);
}

.page-faq .faq-map__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  border: 1px solid rgba(199, 205, 209, .2);
  border-radius: var(--r-md);
  background: linear-gradient(158deg, rgba(62, 92, 75, .46), rgba(11, 43, 36, .56));
  color: var(--paper);
  text-decoration: none;
  transition: transform .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-map__card:hover,
.page-faq .faq-map__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--lime);
  background: linear-gradient(158deg, rgba(62, 92, 75, .62), rgba(11, 43, 36, .7));
}

.page-faq .faq-map__n {
  font-family: var(--mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--lime);
}

.page-faq .faq-map__title {
  margin: 0;
  font-family: var(--narrow);
  font-size: 20px;
  line-height: 1.25;
  font-weight: 700;
}

.page-faq .faq-map__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 239, 230, .7);
}

.page-faq .faq-map__cue {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--signal);
}

@media (min-width: 640px) {
  .page-faq .faq-map__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-map__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: end;
}

.page-faq .faq-body__head h2 {
  margin: 12px 0 0;
  color: var(--char);
}

.page-faq .faq-body__intro {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(16, 20, 19, .66);
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .filter-btn {
  padding: 8px 15px;
  border: 1px solid rgba(16, 20, 19, .2);
  border-radius: var(--pill);
  background: transparent;
  color: var(--char);
  font-family: inherit;
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .filter-btn:hover {
  border-color: var(--clay);
  color: var(--clay);
}

.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--signal);
  border-color: var(--signal);
  color: #101413;
}

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

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 44px);
  margin-top: clamp(24px, 3vw, 38px);
}

.page-faq .faq-index {
  display: none;
}

.page-faq .faq-index ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid var(--faq-rule);
  color: rgba(16, 20, 19, .78);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .16s var(--ease), background .16s var(--ease), color .16s var(--ease);
}

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

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-left-color: var(--signal);
  background: rgba(11, 43, 36, .045);
  color: var(--ink);
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 236px) minmax(0, 1fr);
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }
}

/* ---------- 分组与折叠 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 122, 61, .45);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .faq-group__n {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--clay);
}

.page-faq .faq-group__head h3 {
  margin: 0;
  font-family: var(--narrow);
  font-size: clamp(23px, 3.2vw, 31px);
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--char);
}

.page-faq .faq-group__head p {
  margin: 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(16, 20, 19, .62);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid rgba(16, 20, 19, .14);
  border-radius: var(--r-md);
  background: var(--faq-soft);
  overflow: hidden;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(11, 43, 36, .34);
  box-shadow: 0 14px 34px -26px rgba(11, 43, 36, .85);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--char);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--mono);
  font-size: 19px;
  line-height: 1;
  color: var(--clay);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--signal);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-body-ink);
}

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

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

.page-faq .faq-item__body a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 4px;
  padding: 0 0 0 2px;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding: 0 0 16px 30px;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--lime);
  font-family: var(--mono);
  font-size: 11px;
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 23px;
  bottom: 4px;
  width: 1px;
  background: rgba(11, 43, 36, .2);
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps li:last-child::after {
  display: none;
}

.page-faq .faq-tip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px dashed rgba(11, 43, 36, .26);
  border-radius: var(--r-sm);
  background: rgba(11, 43, 36, .055);
}

.page-faq .faq-tip code {
  flex: 1 1 200px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .copy-btn {
  flex: none;
  padding: 7px 14px;
  border: 0;
  border-radius: var(--pill);
  background: var(--ink);
  color: var(--lime);
  font-family: inherit;
  font-size: 12px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease);
}

.page-faq .copy-btn:hover {
  background: var(--moss);
}

.page-faq .copy-btn[data-copied="true"] {
  background: var(--lime);
  color: var(--ink);
}

.page-faq .copy-btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-figure {
  margin: 0 0 20px;
  max-width: 520px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid rgba(16, 20, 19, .12);
}

.page-faq .faq-figure .media__caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(16, 20, 19, .55);
}

/* ---------- 反馈前准备 ---------- */
.page-faq .faq-prepare__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-prepare h2 {
  margin: 12px 0 0;
}

.page-faq .faq-prepare .lede {
  margin-top: 14px;
  max-width: 32em;
  color: rgba(242, 239, 230, .78);
}

.page-faq .faq-req {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-req li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-req__n {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--lime);
  padding-top: 3px;
}

.page-faq .faq-req h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-req p {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(242, 239, 230, .7);
}

.page-faq .faq-template {
  align-self: start;
  padding: 22px;
  border: 1px solid rgba(200, 247, 81, .34);
  border-radius: var(--r-lg);
  background: linear-gradient(168deg, rgba(62, 92, 75, .52), rgba(11, 43, 36, .78));
}

.page-faq .faq-template__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-faq .faq-template__code {
  margin: 14px 0 18px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: rgba(11, 43, 36, .55);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--silver);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

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

.page-faq .faq-template .copy-btn {
  background: var(--lime);
  color: var(--ink);
}

.page-faq .faq-template .copy-btn:hover {
  background: var(--paper);
}

.page-faq .faq-template__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 239, 230, .6);
}

@media (min-width: 900px) {
  .page-faq .faq-body__head {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-faq .faq-prepare__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .88fr);
    align-items: start;
  }
}