.page-faq {
  --faq-grid-line: rgba(10, 10, 11, 0.035);
  --faq-body: #3B3F45;
  --faq-pad: clamp(12px, 2vw, 20px);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--ink);
  font-family: var(--ff-body);
  padding-bottom: clamp(56px, 9vw, 96px);
}

.page-faq .wrap {
  width: var(--wrap);
  margin-inline: auto;
  padding-inline: 0;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--ff-display);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-crumb__list li + li {
  padding-left: 12px;
  margin-left: 12px;
  border-left: 1px solid var(--hairline);
}

.page-faq .faq-crumb__list a {
  color: var(--steel);
  text-decoration: none;
}

.page-faq .faq-crumb__list a:hover {
  color: var(--red);
}

.page-faq .faq-crumb__list [aria-current="page"] {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
  padding: clamp(28px, 5vw, 56px) 0 clamp(32px, 5vw, 64px);
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--ff-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
}

.page-faq .faq-eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--red);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--ff-display);
  font-size: clamp(28px, 5vw, 54px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.01em;
  max-width: 18em;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.62;
  color: var(--faq-body);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--hairline);
  background: var(--paper-gray);
  overflow: hidden;
}

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

/* ---------- 分组刻度导航 ---------- */
.page-faq .faq-toc {
  display: block;
  margin: 0;
  padding: clamp(28px, 4vw, 44px) 0 0;
  border: 0;
}

.page-faq .faq-toc__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__item {
  position: relative;
  min-width: 0;
}

.page-faq .faq-toc__link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
  width: 100%;
  padding: 16px 14px 18px 0;
  border-top: 2px solid var(--hairline);
  text-decoration: none;
  color: var(--ink);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-toc__link:hover {
  border-top-color: var(--red);
}

.page-faq .faq-toc__link[aria-current="true"] {
  border-top-color: var(--red);
  color: var(--red);
}

.page-faq .faq-toc__num {
  font-family: var(--ff-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--red);
}

.page-faq .faq-toc__name {
  font-family: var(--ff-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.3;
}

/* ---------- 筛选 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(18px, 3vw, 26px) 0 0;
}

.page-faq .faq-chip {
  margin: 0;
  padding: 9px 16px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ff-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-faq .faq-chip[aria-pressed="true"],
.page-faq .faq-chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-group {
  padding-top: clamp(36px, 5vw, 60px);
  scroll-margin-top: 110px;
}

.page-faq .faq-group:first-child {
  padding-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-group + .faq-group {
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-group__kicker {
  margin: 0 0 10px;
  font-family: var(--ff-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-faq .faq-group__title {
  margin: 0;
  max-width: 24em;
  font-family: var(--ff-display);
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0.01em;
}

.page-faq .faq-group__note {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.62;
  color: var(--faq-body);
}

.page-faq .faq-list {
  margin-top: clamp(18px, 3vw, 28px);
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--hairline);
  border-left: 2px solid transparent;
  padding: 16px 0 16px var(--faq-pad);
  transition: border-left-color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::marker,
.page-faq .faq-item__q::before {
  display: none;
  content: "";
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--ff-num);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--red);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2212";
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

.page-faq .faq-item__a {
  padding: 14px 0 4px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.68;
  color: var(--faq-body);
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faq-fade var(--dur) var(--ease) both;
}

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

.page-faq .faq-item__a p + p {
  margin-top: 10px;
}

.page-faq .faq-item__a a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--red);
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--red);
}

.page-faq .faq-item__a .num {
  font-family: var(--ff-num);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--red);
  padding: 0 1px;
}

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

/* ---------- 组内插图 ---------- */
.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border: 1px solid var(--hairline);
  background: var(--paper-gray);
  overflow: hidden;
}

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

.page-faq .faq-figure__cap {
  margin: 0;
  padding: 12px 16px;
  border-top: 1px solid var(--hairline);
  background: var(--paper);
  font-family: var(--ff-num);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 空筛选提示 ---------- */
.page-faq .faq-empty {
  display: none;
  margin: 28px 0 0;
  padding: 18px 20px;
  border-left: 2px solid var(--amber);
  background: var(--paper-gray);
  font-size: 14px;
  line-height: 1.6;
  color: var(--faq-body);
}

.page-faq .faq-empty[data-visible] {
  display: block;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-more {
  margin-top: clamp(48px, 7vw, 80px);
  padding-top: clamp(36px, 5vw, 56px);
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-more__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 30px);
  border: 1px solid var(--hairline);
  background: var(--hairline);
}

.page-faq .faq-more__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--paper);
  text-decoration: none;
  color: var(--ink);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-more__card:hover {
  background: var(--paper-gray);
}

.page-faq .faq-more__tag {
  font-family: var(--ff-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
}

.page-faq .faq-more__title {
  font-family: var(--ff-display);
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 700;
  line-height: 1.25;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-more__card:hover .faq-more__title {
  color: var(--red);
}

.page-faq .faq-more__desc {
  font-size: 15px;
  line-height: 1.62;
  color: var(--faq-body);
}

.page-faq .faq-more__foot {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 15px;
  line-height: 1.62;
  color: var(--faq-body);
}

.page-faq .faq-more__foot a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--red);
  text-underline-offset: 3px;
}

.page-faq .faq-more__foot a:hover {
  color: var(--red);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-toc__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-more__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .page-faq .faq-hero__figure {
    align-self: stretch;
  }

  .page-faq .faq-hero__figure img {
    height: 100%;
  }

  .page-faq .faq-list {
    padding-left: clamp(0px, 2vw, 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a,
  .page-faq .faq-toc__link,
  .page-faq .faq-chip,
  .page-faq .faq-more__card,
  .page-faq .faq-more__title,
  .page-faq .faq-item__q {
    animation: none !important;
    transition: none !important;
  }
}