.page-faq {
  --faq-rail: 288px;
  --faq-gap: clamp(1.6rem, 4vw, 3.4rem);
  background: var(--canvas);
  color: var(--graphite);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--canvas);
  border-radius: 0 0 var(--r-lg) var(--r-lg);
  padding: clamp(2.2rem, 5vw, 3.2rem) 0 clamp(2.6rem, 6vw, 4rem);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -50%;
  width: 540px;
  height: 340px;
  background: radial-gradient(closest-side, rgba(232, 185, 106, 0.26), rgba(232, 185, 106, 0));
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb__link {
  color: var(--copper-hi);
}

.page-faq .faq-hero .breadcrumb__link:hover {
  color: var(--canvas);
}

.page-faq .faq-hero .breadcrumb__sep,
.page-faq .faq-hero .breadcrumb__current {
  color: rgba(244, 242, 236, 0.62);
}

.page-faq .faq-hero__eyebrow {
  margin: 1.6rem 0 0.75rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--copper-hi);
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(1.85rem, 5.2vw, 3.1rem);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--canvas);
}

.page-faq .faq-hero__lede {
  margin: 1.25rem 0 0;
  max-width: 62ch;
  font-size: clamp(1rem, 1.5vw, 1.06rem);
  line-height: 1.85;
  color: rgba(244, 242, 236, 0.8);
}

/* 顶部配图 */
.page-faq .faq-top-media {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-faq .media-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
}

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

/* 主体分栏 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: clamp(2rem, 5vw, 3.4rem);
  padding-bottom: clamp(2.6rem, 6vw, 4.4rem);
}

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

/* 左侧索引轴 */
.page-faq .faq-index__label {
  margin: 0 0 0.8rem 0.95rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--line-soft);
}

.page-faq .faq-index__item + .faq-index__item {
  margin-top: 0.15rem;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin-left: -2px;
  padding: 0.6rem 0.8rem 0.6rem 0.9rem;
  border-left: 2px solid transparent;
  color: var(--graphite);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-index__link:hover {
  border-left-color: var(--copper);
  background: rgba(192, 138, 62, 0.09);
}

.page-faq .faq-index__num {
  flex: none;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-faq .faq-index__text {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.6;
}

.page-faq .faq-index__note {
  margin: 1.3rem 0.9rem 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq:has(#cat-signup:target) .faq-index__link[href="#cat-signup"],
.page-faq:has(#cat-export:target) .faq-index__link[href="#cat-export"],
.page-faq:has(#cat-visit:target) .faq-index__link[href="#cat-visit"],
.page-faq:has(#cat-price:target) .faq-index__link[href="#cat-price"],
.page-faq:has(#cat-help:target) .faq-index__link[href="#cat-help"] {
  border-left-color: var(--copper);
  background: rgba(192, 138, 62, 0.09);
}

/* 分类区块 */
.page-faq .faq-cat {
  scroll-margin-top: 100px;
}

.page-faq .faq-cat + .faq-cat {
  margin-top: clamp(2.2rem, 5vw, 3.4rem);
  padding-top: clamp(2.2rem, 5vw, 3.4rem);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-cat__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.25rem 1rem;
  align-items: baseline;
  margin-bottom: 1.2rem;
}

.page-faq .faq-cat__num {
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--copper);
}

.page-faq .faq-cat__title {
  grid-column: 2;
  margin: 0;
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--graphite);
}

.page-faq .faq-cat__lede {
  grid-column: 2;
  margin: 0.35rem 0 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--muted);
}

/* 问答手风琴 */
.page-faq .faq-list {
  display: grid;
  gap: 0.15rem;
}

.page-faq .faq-item {
  padding: 0 0.9rem;
  border-bottom: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  transition: background-color 0.22s var(--ease);
}

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item[open] {
  background: rgba(226, 222, 212, 0.55);
  border-bottom-color: transparent;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 1.05rem 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  font-weight: 700;
  line-height: 1.6;
  color: var(--graphite);
  transition: color 0.18s var(--ease), font-size 0.22s var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  color: var(--ink);
}

.page-faq .faq-item__q::before {
  content: "Q";
  flex: none;
  display: grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid rgba(192, 138, 62, 0.6);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--copper);
  transform: translateY(0.18rem);
}

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 1.05rem;
  color: var(--muted);
  transition: color 0.22s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q {
  font-size: clamp(1.05rem, 1.6vw, 1.16rem);
}

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

.page-faq .faq-item__a {
  padding: 0 0 1.3rem 2.35rem;
  font-size: 0.96rem;
  line-height: 1.9;
  color: var(--graphite);
  animation: faq-fade 0.28s var(--ease) both;
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a p + p {
  margin-top: 0.7rem;
}

.page-faq .faq-item__a a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.page-faq .faq-item__key {
  font-weight: 800;
  color: var(--graphite);
  box-shadow: inset 0 -0.5em 0 rgba(192, 138, 62, 0.22);
}

@keyframes faq-fade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 步骤小流程图 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0.95rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-faq .faq-steps__item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.92rem;
  color: var(--graphite);
}

.page-faq .faq-steps__num {
  flex: none;
  padding: 0.12rem 0.5rem;
  border: 1px solid rgba(20, 198, 168, 0.5);
  border-radius: 999px;
  background: rgba(20, 198, 168, 0.16);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ink);
}

/* 章内配图 */
.page-faq .faq-figure {
  margin: 1.4rem 0 0;
}

/* 人工支持面板 */
.page-faq .faq-help {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.4rem, 3.4vw, 2.2rem);
  border-radius: var(--r-lg);
  background: var(--ink);
  color: var(--canvas);
}

.page-faq .faq-help__title {
  margin: 0 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  color: var(--copper-hi);
}

.page-faq .faq-help__text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: rgba(244, 242, 236, 0.8);
}

.page-faq .faq-help__text a {
  color: var(--copper-hi);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.page-faq .faq-help__contacts {
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-help__label {
  display: block;
  margin-bottom: 0.15rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--copper-hi);
}

.page-faq .faq-help__value {
  display: block;
  font-family: var(--mono);
  font-size: 0.98rem;
  letter-spacing: 0.04em;
  color: var(--canvas);
  word-break: break-word;
}

.page-faq .faq-help__actions .copy-btn {
  padding: 0.55rem 1.15rem;
  border: 1px solid rgba(232, 185, 106, 0.6);
  border-radius: 999px;
  background: transparent;
  color: var(--copper-hi);
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-help__actions .copy-btn:hover {
  background: rgba(232, 185, 106, 0.16);
  border-color: var(--copper-hi);
}

/* 桌面分栏 */
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 108px;
  }

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

  .page-faq .faq-help__contacts {
    justify-items: end;
    text-align: right;
  }
}

@media (min-width: 720px) and (max-width: 959px) {
  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__q,
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .copy-btn {
    transition-duration: 0.01ms;
  }
}